{"id":40947,"date":"2023-07-25T04:15:44","date_gmt":"2023-07-25T04:15:44","guid":{"rendered":"https:\/\/jasionled.com\/?p=40947"},"modified":"2023-07-27T10:33:41","modified_gmt":"2023-07-27T10:33:41","slug":"led-display-meaning","status":"publish","type":"post","link":"https:\/\/jasionled.com\/led-display-meaning\/","title":{"rendered":"Unlocking\u00a0the\u00a0Potential\u00a0of\u00a0LED\u00a0Displays:\u00a0A\u00a0Step-by-Step\u00a0Guide\u00a0from\u00a0Basics\u00a0to\u00a0Advanced\u00a0Understanding"},"content":{"rendered":"\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t\t\t\t
<\/div>\n\t\t\t\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t

Unlocking the Potential of LED Displays: A Step-by-Step Guide from Basics to Advanced Understanding\n<\/h1>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
\n\t\t\t\t\t\t\t
<\/div>\n\t\t\t\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t

Introduction<\/h4>
\u00a0<\/div>

In\u00a0this\u00a0article,\u00a0you\u00a0will\u00a0learn\u00a0comprehensive\u00a0knowledge\u00a0about\u00a0LED\u00a0displays,\u00a0starting\u00a0from\u00a0the\u00a0concept\u00a0of\u00a0LED\u00a0chips\u00a0to\u00a0the\u00a0composition\u00a0of\u00a0LED\u00a0displays\u00a0and\u00a0their\u00a0parameters. Combined with our experience in the LED display industry, it will help you understand the industry from a practical point of view, and help you transform from a novice in the LED display industry to a professional practitioner.<\/span><\/p>

If\u00a0you\u00a0are\u00a0a\u00a0newcomer\u00a0to\u00a0the\u00a0LED\u00a0display\u00a0industry\u00a0or\u00a0interested\u00a0in\u00a0learning\u00a0related\u00a0knowledge,\u00a0this\u00a0article\u00a0is\u00a0highly\u00a0suitable\u00a0for\u00a0you.<\/span><\/p><\/div><\/div><\/blockquote>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

\n\t\t\t\t
\n\t\t\t

1. What is LED?<\/h3><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t
LED stands for Light Emitting Diode, which is the abbreviation for a semiconductor device that emits light when an electric current passes through it. In the display industry, LED specifically refers to LEDs that can emit visible light wavelengths.\u00a0<\/span><\/div>

Understanding\u00a0LED\u00a0is\u00a0crucial\u00a0when\u00a0it\u00a0comes\u00a0to\u00a0LED\u00a0display\u00a0screens.\u00a0It\u00a0forms\u00a0the\u00a0foundation\u00a0of\u00a0LED\u00a0display\u00a0technology,\u00a0where\u00a0countless\u00a0LED\u00a0bulbs\u00a0illuminate\u00a0and\u00a0go\u00a0dim\u00a0to\u00a0create\u00a0various\u00a0visible\u00a0images.<\/span><\/p><\/div><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

\n\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\"what\t\t\t\t\t\t\t\t\t\t\t
Figure 1 - LEDs<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t
Here are some advantages of LED light sources that you have to know.<\/span><\/div>

Voltage:\u00a0LED\u00a0uses\u00a0a\u00a0low-voltage\u00a0power\u00a0supply,\u00a0and\u00a0the\u00a0voltage\u00a0of\u00a0a\u00a0single\u00a0LED\u00a0is\u00a0between\u00a01.9-4V,\u00a0which\u00a0is\u00a0a\u00a0safer\u00a0power\u00a0supply\u00a0than\u00a0using\u00a0a\u00a0high-voltage\u00a0power\u00a0supply.<\/span><\/p>

Efficacy:\u00a0High\u00a0luminous\u00a0efficiency,\u00a0currently\u00a0the\u00a0highest\u00a0luminous\u00a0efficiency\u00a0in\u00a0the\u00a0laboratory\u00a0has\u00a0reached\u00a0251\u00a0lm\/w,\u00a0which\u00a0is\u00a0currently\u00a0the\u00a0lighting\u00a0product\u00a0with\u00a0the\u00a0highest\u00a0luminous\u00a0efficiency.<\/span><\/p>

Shock\u00a0resistance:\u00a0LED\u00a0is\u00a0a\u00a0solid-state\u00a0light\u00a0source.\u00a0Due\u00a0to\u00a0its\u00a0particularity,\u00a0it\u00a0has\u00a0shock\u00a0resistance\u00a0that\u00a0other\u00a0light\u00a0source\u00a0products\u00a0cannot\u00a0match.<\/span><\/p>

Stability:\u00a0LEDs\u00a0maintain\u00a070%\u00a0of\u00a0their\u00a0initial\u00a0luminous\u00a0flux\u00a0after\u00a0100,000\u00a0hours\u00a0of\u00a0operation.<\/span><\/p>

Response\u00a0time:\u00a0The\u00a0response\u00a0time\u00a0of\u00a0LEDs\u00a0is\u00a0nanosecond\u00a0level,\u00a0which\u00a0is\u00a0the\u00a0product\u00a0with\u00a0the\u00a0fastest\u00a0response\u00a0time\u00a0among\u00a0all\u00a0light\u00a0sources\u00a0at\u00a0present.<\/span><\/p>

Environmental\u00a0protection:\u00a0no\u00a0metal\u00a0mercury\u00a0and\u00a0other\u00a0substances\u00a0harmful\u00a0to\u00a0the\u00a0environment.<\/span><\/p>

Color:\u00a0The\u00a0band\u00a0of\u00a0LED\u00a0is\u00a0quite\u00a0narrow,\u00a0and\u00a0the\u00a0color\u00a0of\u00a0the\u00a0light\u00a0emitted\u00a0is\u00a0pure,\u00a0without\u00a0variegated\u00a0light,\u00a0covering\u00a0all\u00a0the\u00a0wavelength\u00a0bands\u00a0of\u00a0visible\u00a0light,\u00a0and\u00a0can\u00a0be\u00a0combined\u00a0into\u00a0any\u00a0desired\u00a0visible\u00a0light\u00a0by\u00a0R\\G\\B.<\/span><\/p><\/div><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

\n\t\t\t\t
\n\t\t\t

2. What is a Pixel?<\/h3><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t
A pixel in LED displays refers to the smallest imaging unit that constitutes the LED screen. It is also known as a “dot” or “pixel point”. In LED displays, the pixel represents the smallest light-emitting unit on the screen. For single color LED displays, a pixel refers to a single LED. In full-color LED displays, a pixel consists of a cluster of colored light-emitting units, typically represented as 1R1G1B or 2R1G1B.<\/span><\/div>

1R:\u00a0Indicates\u00a0one\u00a0single\u00a0red\u00a0LED.<\/span><\/p>

2R1G:\u00a0Indicates\u00a0two\u00a0red\u00a0LEDs\u00a0and\u00a0one\u00a0green\u00a0LED.<\/span><\/p>

2R1G1B:\u00a0Indicates\u00a0two\u00a0red\u00a0LEDs,\u00a0one\u00a0green\u00a0LED,\u00a0and\u00a0one\u00a0blue\u00a0LED.\u00a0(This\u00a0means\u00a0that\u00a0a\u00a0pixel\u00a0has\u00a0four\u00a0individual\u00a0lights.)<\/span><\/p>

Understanding\u00a0the\u00a0concept\u00a0of\u00a0pixels\u00a0is\u00a0essential\u00a0to\u00a0comprehend\u00a0how\u00a0LED\u00a0displays\u00a0work,\u00a0as\u00a0they\u00a0form\u00a0the\u00a0basis\u00a0for\u00a0creating\u00a0images\u00a0on\u00a0the\u00a0screen.<\/span><\/p><\/div><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\"led-display-pixels\"\t\t\t\t\t\t\t\t\t\t\t
Figure 2 - led display pixels<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t

For example, for a P5 modular, the size is 320mm*160mm, and a single modular has 64*32 dots(pixels)<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

\n\t\t\t\t
\n\t\t\t

3. What is Pixel Pitch?<\/h3><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t
Pixel pitch, also known as dot pitch, refers to the center-to-center distance between two adjacent pixel points on a display. A smaller pixel pitch indicates a shorter viewing distance between pixels. In the industry, professionals often use the shorthand “P” to represent pixel pitch.<\/span><\/div>
\u00a0<\/div>

Pixel\u00a0pitch\u00a0is\u00a0a\u00a0crucial\u00a0factor\u00a0as\u00a0it\u00a0directly\u00a0affects\u00a0the\u00a0viewing\u00a0distance\u00a0and\u00a0clarity\u00a0of\u00a0the\u00a0screen.\u00a0The\u00a0optimal\u00a0viewing\u00a0distance\u00a0for\u00a0a\u00a0screen\u00a0is\u00a0determined\u00a0by\u00a0the\u00a0value\u00a0of\u00a0the\u00a0pixel\u00a0pitch.<\/span><\/p><\/div><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\"pixel-pitch\"\t\t\t\t\t\t\t\t\t\t\t
Figure 3 - Pixel Pitch of led display<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t

For example, for a P4 LED Display, the Pixel Pitch is 4mm.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

\n\t\t\t\t
\n\t\t\t

4. What is Pixel Density?<\/h3><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t
Pixel density, also known as dot pitch, refers to the number of pixels per square meter on a LED display screen. It represents the concentration of pixels within a given area.<\/span><\/div>

Since\u00a0pixel\u00a0pitch\u00a0reflects\u00a0the\u00a0spatial\u00a0distance\u00a0between\u00a0two\u00a0pixels,\u00a0a\u00a0smaller\u00a0pixel\u00a0pitch\u00a0means\u00a0a\u00a0smaller\u00a0space\u00a0between\u00a0pixels.\u00a0In\u00a0other\u00a0words,\u00a0it\u00a0signifies\u00a0higher\u00a0pixel\u00a0density\u00a0and\u00a0a\u00a0higher\u00a0screen\u00a0resolution.<\/span><\/p>

However,\u00a0it\u00a0is\u00a0important\u00a0to\u00a0note\u00a0that\u00a0while\u00a0higher\u00a0pixel\u00a0density\u00a0can\u00a0enhance\u00a0visual\u00a0quality,\u00a0it\u00a0does\u00a0not\u00a0necessarily\u00a0mean\u00a0that\u00a0a\u00a0smaller\u00a0pixel\u00a0pitch\u00a0is\u00a0the\u00a0ideal\u00a0choice\u00a0in\u00a0all\u00a0circumstances.\u00a0Higher\u00a0pixel\u00a0density\u00a0is\u00a0intended\u00a0to\u00a0provide\u00a0a\u00a0closer\u00a0viewing\u00a0distance.\u00a0At\u00a0larger\u00a0viewing\u00a0distances,\u00a0higher\u00a0pixel\u00a0density\u00a0loses\u00a0its\u00a0visual\u00a0advantage\u00a0and\u00a0can\u00a0increase\u00a0costs.<\/span><\/p>

Therefore,\u00a0the\u00a0selection\u00a0of\u00a0pixel\u00a0density\u00a0depends\u00a0on\u00a0factors\u00a0such\u00a0as\u00a0the\u00a0intended\u00a0viewing\u00a0distance,\u00a0desired\u00a0visual\u00a0quality,\u00a0and\u00a0budget\u00a0considerations.<\/span><\/p><\/div><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\"Pixel-Density\"\t\t\t\t\t\t\t\t\t\t\t
Figure 4 - Pixel Density of LED Display<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t

Pixel Density = (1000mm \/ Pixel Pitch mm) * (1000mm \/ Pixel Pitch mm) dots\/m\u00b2<\/p>

For example: The pixel density of P2.5 is 160,000 dots\/m\u00b2. For a display area of 1 square meter, the resolution of P2.5 is 400 * 400 pixels.<\/p>

Calculation process of pixel density:\u00a0<\/p>

The unit of pixel density is dots\/m\u00b2.\u00a0<\/p>

1 meter = 1000mm Since P2.5 represents a pixel pitch of 2.5mm,<\/p>

we have: Pixel Density = (1000\/2.5mm) * (1000\/2.5mm) = 400 * 400 = 160,000 dots\/m\u00b2<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

\n\t\t\t\t
\n\t\t\t\t\t\t\t

Here are some examples of full-color LED display models and their corresponding pixel density (number of pixels) in dots per square meter:<\/strong><\/p>

  • P2 Indoor Fine-Pitch Full-Color LED Display = 250,000 dots\/m\u00b2<\/li>
  • P2.5 Indoor High-Definition Full-Color LED Display = 160,000 dots\/m\u00b2<\/li>
  • P3 Indoor Full-Color LED Display = 111,111 dots\/m\u00b2<\/li>
  • P4 Indoor Full-Color LED Display = 62,500 dots\/m\u00b2<\/li>
  • Outdoor P4 Full-Color LED Display = 62,500 dots\/m\u00b2<\/li>
  • Outdoor P5 Full-Color LED Display = 40,000 dots\/m\u00b2<\/li>
  • Outdoor P6 Full-Color LED Display = 27,800 dots\/m\u00b2<\/li>
  • Outdoor P8 Full-Color LED Display = 15,625 dots\/m\u00b2<\/li>
  • Outdoor P10 Full-Color LED Display = 10,000 dots\/m\u00b2<\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
    \n\t\t\t\t
    \n\t\t\t

    5. What is an LED Display Modular?<\/h3><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
    \n\t\t\t\t
    \n\t\t\t\t\t\t\t
    An LED display modular, also known as an LED panel or unit board, consists of LED light-emitting diodes, driver circuits, driving ICs, and plastic components. It is a fundamental unit with a predetermined circuit and installation structure, capable of displaying content when assembled into a larger LED display screen.<\/span><\/div>
    \u00a0<\/div>

    In\u00a0simple\u00a0terms,\u00a0an\u00a0LED\u00a0display\u00a0module\u00a0refers\u00a0to\u00a0a\u00a0printed\u00a0circuit\u00a0board\u00a0(PCB)\u00a0that\u00a0is\u00a0equipped\u00a0with\u00a0ICs,\u00a0LED\u00a0chips,\u00a0and\u00a0other\u00a0components\u00a0through\u00a0soldering.\u00a0Each\u00a0module\u00a0has\u00a0different\u00a0size\u00a0specifications\u00a0depending\u00a0on\u00a0the\u00a0model.\u00a0For\u00a0example,\u00a0the\u00a0dimensions\u00a0of\u00a0a\u00a0P2\u00a0module\u00a0could\u00a0be\u00a0128×256,\u00a0P2.5\u00a0module\u00a0sizes\u00a0could\u00a0be\u00a0160×160\u00a0or\u00a0320×160,\u00a0and\u00a0P3\u00a0module\u00a0sizes\u00a0could\u00a0be\u00a0192×192,\u00a0and\u00a0so\u00a0on.\u00a0These\u00a0modules\u00a0play\u00a0a\u00a0crucial\u00a0role\u00a0in\u00a0creating\u00a0functional\u00a0LED\u00a0display\u00a0screens\u00a0through\u00a0simple\u00a0assembly.<\/span><\/p><\/div><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

    \n\t\t\t\t
    \n\t\t\t\t\t\t\t<\/colgroup>
    Pixel Pitch<\/strong><\/td>LED Modular Size<\/strong><\/td><\/tr>
    P1.25, P1.53, P1.66, P1.8, P2, P2.5<\/td>320*160mm<\/td><\/tr>
    P3, P4, P5, P6<\/td>256*128mm, 192*192mm<\/td><\/tr>
    P8, P10, P15, P20<\/td>160*160mm, 256*128mm<\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
    \n\t\t\t\t
    \n\t\t\t\t\t\t\t

    Currently, in the market, LED display modular sizes are mainly 320*160mm, 160*<\/em>160mm, 256*128mm, 192*<\/em>192mm, and so on.<\/p>

    Among these, the 320*160mm modular is widely used, especially for indoor LED displays. This size is popular for two reasons: first, its aspect ratio is 2:1, and second, the larger module size makes it more convenient during LED cabinet production and installation. It reduces the number of module splices, resulting in a smoother surface for the entire LED display.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

    \n\t\t\t\t
    \n\t\t\t

    6. What is LED Screen Cabinet (LED Display Cabinet)<\/h3><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
    \n\t\t\t\t
    \n\t\t\t\t\t\t\t
    \u00a0<\/div>

    The\u00a0LED\u00a0screen\u00a0cabinet\u00a0(LED\u00a0display\u00a0cabinet)\u00a0refers\u00a0to\u00a0the\u00a0external\u00a0structure\u00a0used\u00a0for\u00a0mounting\u00a0and\u00a0protecting\u00a0LED\u00a0display\u00a0modules\u00a0(or\u00a0unit\u00a0boards).\u00a0Typically,\u00a0it\u00a0is\u00a0made\u00a0of\u00a0metal\u00a0materials\u00a0such\u00a0as\u00a0aluminum\u00a0alloy.\u00a0The\u00a0LED\u00a0display\u00a0cabinet\u00a0provides\u00a0a\u00a0stable\u00a0support\u00a0structure\u00a0and\u00a0safeguards\u00a0the\u00a0display\u00a0modules,\u00a0while\u00a0also\u00a0assisting\u00a0in\u00a0heat\u00a0dissipation\u00a0and\u00a0circuit\u00a0protection.<\/span><\/p>

    The\u00a0cabinet\u00a0serves\u00a0as\u00a0the\u00a0fundamental\u00a0framework\u00a0for\u00a0various\u00a0components.\u00a0The\u00a0receiving\u00a0card,\u00a0power\u00a0supply,\u00a0HUB\u00a0card,\u00a0and\u00a0unit\u00a0boards\u00a0(modules)\u00a0are\u00a0all\u00a0installed\u00a0on\u00a0the\u00a0cabinet,\u00a0forming\u00a0the\u00a0basic\u00a0display\u00a0unit\u00a0of\u00a0an\u00a0LED\u00a0display\u00a0screen.\u00a0Additionally,\u00a0the\u00a0cabinet\u00a0is\u00a0designed\u00a0with\u00a0power\u00a0and\u00a0signal\u00a0interfaces\u00a0for\u00a0easy\u00a0connectivity.<\/span><\/p>

    Please\u00a0note\u00a0that\u00a0“unit\u00a0boards”\u00a0“modules”\u00a0and\u00a0“LED\u00a0display\u00a0panel”\u00a0all\u00a0are\u00a0mentioned\u00a0as\u00a0interchangeable\u00a0terms\u00a0for\u00a0the\u00a0LED\u00a0display\u00a0components.<\/span><\/p><\/div>

    The following are common led display cabinet sizes:<\/p>

    For fixed installations, common sizes for iron LED display cabinets include 1024mm\u00d71024mm, 960mm\u00d7960mm, 768mm\u00d7768mm, 576mm\u00d7576mm, and 512mm\u00d7512mm.<\/p>

    For rental purposes, commonly used die-cast aluminum LED cabinets come in sizes like 500mm\u00d7500mm and 500mm\u00d71000mm.<\/p><\/div><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

    \n\t\t\t\t
    \n\t\t\t

    7. What is an LED Screen (LED Display Screen)?<\/h3><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
    \n\t\t\t\t
    \n\t\t\t\t\t\t\t
    \u00a0<\/div>

    An\u00a0LED\u00a0screen\u00a0is\u00a0a\u00a0flat\u00a0panel\u00a0display\u00a0consisting\u00a0of\u00a0individual\u00a0LED\u00a0display\u00a0modules\u00a0that\u00a0are\u00a0used\u00a0to\u00a0present\u00a0various\u00a0types\u00a0of\u00a0information,\u00a0such\u00a0as\u00a0text,\u00a0images,\u00a0videos,\u00a0and\u00a0more.\u00a0It\u00a0is\u00a0a\u00a0screen\u00a0composed\u00a0of\u00a0an\u00a0array\u00a0of\u00a0LED\u00a0devices\u00a0controlled\u00a0in\u00a0a\u00a0specific\u00a0manner.<\/span><\/p>

    LED\u00a0displays\u00a0integrate\u00a0microelectronics,\u00a0computer\u00a0technology,\u00a0and\u00a0information\u00a0processing\u00a0to\u00a0deliver\u00a0vibrant\u00a0colors,\u00a0wide\u00a0dynamic\u00a0range,\u00a0high\u00a0brightness,\u00a0long\u00a0lifespan,\u00a0and\u00a0reliable\u00a0operation.\u00a0They\u00a0find\u00a0extensive\u00a0applications\u00a0in\u00a0commercial\u00a0media,\u00a0cultural\u00a0performances,\u00a0sports\u00a0arenas,\u00a0information\u00a0dissemination,\u00a0news\u00a0broadcasting,\u00a0securities\u00a0trading,\u00a0and\u00a0more,\u00a0catering\u00a0to\u00a0diverse\u00a0environmental\u00a0requirements.<\/span><\/p>

    Here are the different types of LED displays:<\/p>

    1. Rental LED Display: Suitable for theme parks, bars, auditoriums, theaters, events, and building facades.<\/li>
    2. Fine Pitch LED Display: Commonly used in airports, schools, transportation, and esports competitions.<\/li>
    3. Transparent LED Display: Used in advertising, large shopping malls, corporate showrooms, and exhibitions.<\/li>
    4. Creative LED Display: Ideal for advertising, sports stadiums, conference centers, real estate, and stages.<\/li>
    5. Fixed Installation LED Display: Often used for TV shows, VCD\/DVD playback, live events, and advertising.<\/li>
    6. Single-Color LED Display: Widely used in bus stations, banks, shops, and docks.<\/li>
    7. Dual-Color LED Display: Mainly used in subways, airports, commercial centers, wedding studios, and restaurants.<\/li>
    8. Full-Color LED Display: Suitable for office buildings, high-speed railway stations, commercial advertising, information dissemination, and exhibition centers.<\/li>
    9. Indoor LED Display: Commonly used in hotel lobbies, supermarkets, KTVs, commercial centers, and hospitals.<\/li>
    10. Outdoor LED Display: Used for creating a festive atmosphere, promoting corporate products and advertisements, and conveying information. Often found in buildings, advertising industry, enterprises, and parks.<\/li><\/ol><\/div><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
      \n\t\t\t\t
      \n\t\t\t

      8. What is DIP? What is a DIP LED Display?<\/h3><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
      \n\t\t\t\t
      \n\t\t\t\t\t\t\t
      \u00a0<\/div>

      DIP\u00a0stands\u00a0for\u00a0Dual\u00a0In-Line\u00a0Package,\u00a0a\u00a0type\u00a0of\u00a0integrated\u00a0circuit\u00a0(IC)\u00a0packaging.\u00a0It\u00a0features\u00a0a\u00a0rectangular\u00a0shape\u00a0with\u00a0two\u00a0parallel\u00a0rows\u00a0of\u00a0metal\u00a0pins\u00a0called\u00a0dual\u00a0inline\u00a0pins.\u00a0Components\u00a0in\u00a0DIP\u00a0packaging\u00a0can\u00a0be\u00a0soldered\u00a0onto\u00a0printed\u00a0circuit\u00a0boards\u00a0or\u00a0inserted\u00a0into\u00a0DIP\u00a0sockets.<\/span><\/p>

      A\u00a0DIP\u00a0LED\u00a0display\u00a0refers\u00a0to\u00a0an\u00a0LED\u00a0display\u00a0screen\u00a0made\u00a0using\u00a0DIP\u00a0technology.\u00a0DIP\u00a0LEDs\u00a0are\u00a0encapsulated\u00a0using\u00a0a\u00a0molding\u00a0process.\u00a0Liquid\u00a0epoxy\u00a0resin\u00a0is\u00a0injected\u00a0into\u00a0the\u00a0LED\u00a0mold\u00a0cavity,\u00a0and\u00a0pre-soldered\u00a0LED\u00a0leads\u00a0are\u00a0inserted.\u00a0After\u00a0curing\u00a0the\u00a0epoxy\u00a0resin\u00a0in\u00a0an\u00a0oven,\u00a0the\u00a0LED\u00a0is\u00a0released\u00a0from\u00a0the\u00a0mold\u00a0and\u00a0takes\u00a0its\u00a0final\u00a0shape.<\/span><\/p>

      DIP\u00a0LED\u00a0displays\u00a0are\u00a0popular\u00a0due\u00a0to\u00a0their\u00a0relatively\u00a0simple\u00a0manufacturing\u00a0process,\u00a0low\u00a0cost,\u00a0and\u00a0higher\u00a0market\u00a0share.\u00a0They\u00a0are\u00a0larger\u00a0in\u00a0size\u00a0and\u00a0can\u00a0be\u00a0manually\u00a0or\u00a0machine-inserted.\u00a0DIP\u00a0LEDs\u00a0offer\u00a0high\u00a0brightness,\u00a0making\u00a0them\u00a0suitable\u00a0for\u00a0outdoor\u00a0LED\u00a0displays\u00a0where\u00a0waterproofing\u00a0is\u00a0often\u00a0required.<\/span><\/p><\/div><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

      \n\t\t\t\t
      \n\t\t\t\t\t\t\t\t\t\t
      \n\t\t\t\t\t\t\t\t\t\t\"dip-vs-smd\"\t\t\t\t\t\t\t\t\t\t\t
      Figure 5 - DIP VS SMD<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
      \n\t\t\t\t
      \n\t\t\t

      9. What is SMT Module? What are its advantages and disadvantages?<\/h3><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
      \n\t\t\t\t
      \n\t\t\t\t\t\t\t
      \u00a0<\/div>

      SMT\u00a0Module,\u00a0also\u00a0known\u00a0as\u00a0surface-mount\u00a0technology,\u00a0involves\u00a0soldering\u00a0SMT-packaged\u00a0LEDs\u00a0onto\u00a0the\u00a0surface\u00a0of\u00a0a\u00a0PCB\u00a0without\u00a0the\u00a0need\u00a0for\u00a0the\u00a0LED\u00a0pins\u00a0to\u00a0pass\u00a0through\u00a0the\u00a0board.\u00a0The\u00a0modules\u00a0created\u00a0using\u00a0this\u00a0process\u00a0are\u00a0called\u00a0surface\u00a0mount\u00a0modules\u00a0or\u00a0SMT\u00a0modules.<\/span><\/p>

      Advantages:\u00a0Wide\u00a0viewing\u00a0angle,\u00a0smooth\u00a0image\u00a0display,\u00a0excellent\u00a0visual\u00a0performance,\u00a0high\u00a0pixel\u00a0density,\u00a0suitable\u00a0for\u00a0indoor\u00a0viewing.\u00a0High\u00a0pixel\u00a0density,\u00a0making\u00a0it\u00a0suitable\u00a0for\u00a0indoor\u00a0viewing.\u00a0<\/span><\/p>

      Disadvantages:\u00a0Lower\u00a0brightness\u00a0compared\u00a0to\u00a0other\u00a0technologies,\u00a0LEDs\u00a0may\u00a0have\u00a0inadequate\u00a0heat\u00a0dissipation.<\/span><\/p><\/div><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

      \n\t\t\t\t
      \n\t\t\t

      10. What is Semi-Surface Mount Module (SSM)? What are its advantages and disadvantages?<\/h3><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
      \n\t\t\t\t
      \n\t\t\t\t\t\t\t
      \u00a0<\/div>

      Semi-Surface\u00a0Mount\u00a0Module,\u00a0also\u00a0known\u00a0as\u00a0plug-in\u00a0LED\u00a0or\u00a0quasi-SMT,\u00a0is\u00a0a\u00a0type\u00a0of\u00a0product\u00a0where\u00a0the\u00a0LED\u00a0is\u00a0encapsulated\u00a0into\u00a0a\u00a0rectangular\u00a0shape,\u00a0and\u00a0the\u00a0red,\u00a0green,\u00a0and\u00a0blue\u00a0LEDs\u00a0are\u00a0combined\u00a0to\u00a0form\u00a0a\u00a0pixel\u00a0and\u00a0module.\u00a0The\u00a0assembly\u00a0process\u00a0involves\u00a0passing\u00a0the\u00a0LED\u00a0pins\u00a0through\u00a0the\u00a0PCB\u00a0for\u00a0soldering.<\/span><\/p>

      Advantages:\u00a0Shares\u00a0some\u00a0characteristics\u00a0with\u00a0SMT,\u00a0utilizing\u00a0similar\u00a0surface-mount\u00a0LED\u00a0packaging,\u00a0but\u00a0has\u00a0the\u00a0pin-through-hole\u00a0soldering\u00a0process\u00a0like\u00a0DIP.\u00a0It\u00a0achieves\u00a0some\u00a0benefits\u00a0of\u00a0surface-mount\u00a0technology.<\/span><\/p>

      Disadvantages:\u00a0Compared\u00a0to\u00a0full\u00a0SMT,\u00a0semi-surface\u00a0mount\u00a0technology\u00a0may\u00a0have\u00a0inferior\u00a0color\u00a0performance.\u00a0It\u00a0is\u00a0considered\u00a0a\u00a0transitional\u00a0technology\u00a0and\u00a0is\u00a0now\u00a0mostly\u00a0phased\u00a0out.<\/span><\/p><\/div><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

      \n\t\t\t\t
      \n\t\t\t

      11. What is COB Packaging? What are its advantages and disadvantages?<\/h3><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
      \n\t\t\t\t
      \n\t\t\t\t\t\t\t
      \u00a0<\/div>

      COB\u00a0packaging,\u00a0also\u00a0known\u00a0as\u00a0chip\u00a0on\u00a0board,\u00a0involves\u00a0attaching\u00a0bare\u00a0LED\u00a0chips\u00a0to\u00a0a\u00a0substrate\u00a0using\u00a0conductive\u00a0or\u00a0non-conductive\u00a0adhesive,\u00a0followed\u00a0by\u00a0wire\u00a0bonding\u00a0for\u00a0electrical\u00a0connections.\u00a0COB\u00a0packaging\u00a0is\u00a0a\u00a0no-bracket\u00a0technology,\u00a0eliminating\u00a0the\u00a0need\u00a0for\u00a0bracketed\u00a0pin\u00a0soldering.\u00a0Each\u00a0LED\u00a0chip\u00a0and\u00a0bonding\u00a0wire\u00a0are\u00a0encapsulated\u00a0tightly\u00a0within\u00a0epoxy\u00a0resin,\u00a0leaving\u00a0no\u00a0exposed\u00a0elements.<\/span><\/p>

      Advantages:\u00a0COB\u00a0packaging\u00a0offers\u00a0significant\u00a0advantages\u00a0in\u00a0efficiency,\u00a0cost,\u00a0and\u00a0reliability\u00a0compared\u00a0to\u00a0traditional\u00a0SMD\u00a0single\u00a0LED\u00a0packaging.<\/span><\/p>

      Disadvantages:\u00a0Although\u00a0COB\u00a0packaging\u00a0is\u00a0widely\u00a0used\u00a0in\u00a0lighting\u00a0applications,\u00a0it\u00a0is\u00a0still\u00a0in\u00a0the\u00a0developmental\u00a0stage\u00a0for\u00a0LED\u00a0display\u00a0screens.\u00a0Challenges\u00a0remain\u00a0in\u00a0areas\u00a0such\u00a0as\u00a0optical\u00a0and\u00a0ink\u00a0color\u00a0consistency,\u00a0and\u00a0achieving\u00a0mass\u00a0production\u00a0is\u00a0still\u00a0difficult,\u00a0leading\u00a0manufacturers\u00a0to\u00a0adopt\u00a0a\u00a0cautious\u00a0approach.<\/span><\/p><\/div><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

      \n\t\t\t\t
      \n\t\t\t

      12. What is GOB Packaging? What are its advantages?<\/h3><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
      \n\t\t\t\t
      \n\t\t\t\t\t\t\t

      GOB encapsulation technology is a packaging technique developed to address LED chip protection. It utilizes advanced transparent materials to encapsulate both the PCB substrate and LED chips, providing effective protection.\u00a0<\/p>

      Essentially, it adds an additional protective layer to the original LED module, achieving high-level protection such as waterproof, moisture-proof, impact-resistant, scratch-resistant, static-resistant, salt-resistant, oxidation-resistant, blue light-resistant, and shock-resistant.<\/p>

      The advantages of GOB encapsulation technology are as follows:<\/p>

      1. GOB offers high protection for LED displays, providing eight protections: waterproof, moisture-proof, impact-resistant, dust-proof, corrosion-resistant, blue light-resistant, salt-resistant, and static-resistant. Additionally, it does not negatively impact heat dissipation or brightness. Rigorous testing has shown that the encapsulation material even contributes to heat dissipation, reducing LED chip failure rates and enhancing display stability, leading to prolonged service life.<\/p><\/li>

      2. Through the GOB process, the previously granular pixel points on the LED module surface transform into a seamless flat panel, resulting in a transition from point source to surface source. This achieves more uniform light emission, clearer and more transparent display effects, and significantly improved viewing angles (near 180\u00b0 horizontally and vertically). It effectively eliminates moir\u00e9 patterns, enhances product contrast, reduces glare and eye strain, thus alleviating visual fatigue.<\/p><\/li><\/ol>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

        \n\t\t\t\t
        \n\t\t\t

        13. What is \"three-in-one\" (Tri-color LED)?<\/h3><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
        \n\t\t\t\t
        \n\t\t\t\t\t\t\t
        “Three-in-one” refers to SMT LED packages that vertically combine RGB (Red, Green, Blue) LED chips at certain intervals.<\/span><\/div>
        \u00a0<\/div>

        Advantages:\u00a0Excellent\u00a0display\u00a0performance,\u00a0achieving\u00a0vibrant\u00a0and\u00a0colorful\u00a0visual\u00a0effects,\u00a0making\u00a0it\u00a0suitable\u00a0for\u00a0color\u00a0LED\u00a0displays\u00a0with\u00a0outstanding\u00a0display\u00a0quality.<\/span><\/p>

        Disadvantages:\u00a0The\u00a0manufacturing\u00a0process\u00a0is\u00a0complex,\u00a0and\u00a0repair\u00a0can\u00a0be\u00a0challenging\u00a0due\u00a0to\u00a0multiple\u00a0integrated\u00a0LED\u00a0chips\u00a0in\u00a0one\u00a0package.\u00a0Consequently,\u00a0it\u00a0results\u00a0in\u00a0higher\u00a0production\u00a0costs.<\/span><\/p><\/div><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

        \n\t\t\t\t
        \n\t\t\t

        14. What is Luminous Brightness of LED Display?<\/h3><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
        \n\t\t\t\t
        \n\t\t\t\t\t\t\t
        \u00a0<\/div>

        Luminous\u00a0Brightness\u00a0of\u00a0an\u00a0LED\u00a0display\u00a0refers\u00a0to\u00a0the\u00a0intensity\u00a0of\u00a0light\u00a0emitted\u00a0per\u00a0unit\u00a0area,\u00a0measured\u00a0in\u00a0CD\/square\u00a0meter.\u00a0In\u00a0simple\u00a0terms,\u00a0it\u00a0represents\u00a0the\u00a0light\u00a0intensity\u00a0emitted\u00a0by\u00a0a\u00a0one-square-meter\u00a0LED\u00a0display.\u00a0<\/p>

        Different\u00a0environments\u00a0have\u00a0varying\u00a0brightness\u00a0requirements\u00a0for\u00a0LED\u00a0displays:<\/p>

        \u25cf\u00a0Indoor\u00a0LED\u00a0Display:\u00a0>800\u00a0CD\/square\u00a0meter<\/p>

        \u25cf\u00a0Semi-indoor\u00a0LED\u00a0Display:\u00a0>2000\u00a0CD\/square\u00a0meter<\/p>

        \u25cf\u00a0Outdoor\u00a0LED\u00a0Display\u00a0(facing\u00a0north):\u00a0>4000\u00a0CD\/square\u00a0meter<\/p>

        \u25cf\u00a0Outdoor\u00a0LED\u00a0Display\u00a0(facing\u00a0south):\u00a0>8000\u00a0CD\/square\u00a0meter<\/p>

        The\u00a0above\u00a0standards\u00a0are\u00a0theoretical\u00a0values,\u00a0and\u00a0the\u00a0LED\u00a0screen’s\u00a0brightness\u00a0can\u00a0be\u00a0adjusted\u00a0based\u00a0on\u00a0visual\u00a0perception\u00a0and\u00a0surrounding\u00a0environment.\u00a0Typically,\u00a0outdoor\u00a0full-color\u00a0LED\u00a0screens\u00a0facing\u00a0south\u00a0require\u00a0brightness\u00a0above\u00a06500\u00a0CD\/square\u00a0meter\u00a0and\u00a0facing\u00a0north\u00a0above\u00a05000\u00a0CD\/square\u00a0meter,\u00a0outdoor\u00a0single-color\u00a0LED\u00a0message\u00a0boards\u00a0require\u00a0brightness\u00a0above\u00a01500\u00a0CD\/square\u00a0meter,\u00a0indoor\u00a0full-color\u00a0LED\u00a0screens\u00a0require\u00a0brightness\u00a0above\u00a01200\u00a0CD\/square\u00a0meter,\u00a0and\u00a0indoor\u00a0single-color\u00a0LED\u00a0screens\u00a0require\u00a0brightness\u00a0above\u00a0280\u00a0CD\/square\u00a0meter\u00a0to\u00a0meet\u00a0the\u00a0requirements.<\/p><\/div><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

        \n\t\t\t\t
        \n\t\t\t

        15. What is the Brightness Level of an LED Display?<\/h3><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
        \n\t\t\t\t
        \n\t\t\t\t\t\t\t
        \u00a0<\/div>

        The\u00a0brightness\u00a0level\u00a0of\u00a0an\u00a0LED\u00a0display\u00a0refers\u00a0to\u00a0the\u00a0number\u00a0of\u00a0manual\u00a0or\u00a0automatic\u00a0adjustments\u00a0between\u00a0the\u00a0lowest\u00a0and\u00a0highest\u00a0brightness\u00a0settings\u00a0of\u00a0the\u00a0entire\u00a0screen.<\/span><\/p><\/div><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

        \n\t\t\t\t
        \n\t\t\t

        16. What is the Gray Scale Level of an LED Display?<\/h3><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
        \n\t\t\t\t
        \n\t\t\t\t\t\t\t
        \u00a0<\/div>

        The\u00a0gray\u00a0scale\u00a0level\u00a0of\u00a0an\u00a0LED\u00a0display\u00a0refers\u00a0to\u00a0the\u00a0number\u00a0of\u00a0technical\u00a0processing\u00a0steps\u00a0between\u00a0the\u00a0darkest\u00a0and\u00a0brightest\u00a0states\u00a0at\u00a0the\u00a0same\u00a0brightness\u00a0level.\u00a0Higher\u00a0gray\u00a0scale\u00a0allows\u00a0for\u00a0more\u00a0color\u00a0variations\u00a0in\u00a0the\u00a0image,\u00a0resulting\u00a0in\u00a0smoother\u00a0color\u00a0transitions\u00a0and\u00a0a\u00a0clearer,\u00a0more\u00a0vivid\u00a0overall\u00a0display\u00a0effect.\u00a0In\u00a0low\u00a0gray\u00a0scale\u00a0states,\u00a0achieving\u00a0such\u00a0display\u00a0effects\u00a0becomes\u00a0challenging.<\/span><\/p>

        With\u00a0higher\u00a0gray\u00a0scale\u00a0levels,\u00a0the\u00a0display\u00a0can\u00a0present\u00a0richer\u00a0colors\u00a0and\u00a0finer\u00a0details,\u00a0enhancing\u00a0the\u00a0visual\u00a0experience.\u00a0Commonly,\u00a0LED\u00a0displays\u00a0have\u00a0four\u00a0levels\u00a0of\u00a0gray\u00a0scale:\u00a0256\u00a0levels,\u00a01024\u00a0levels,\u00a04096\u00a0levels,\u00a0and\u00a016384\u00a0levels.<\/span><\/p>

        In\u00a0general\u00a0use,\u00a0LED\u00a0displays\u00a0with\u00a0256\u00a0and\u00a01024\u00a0gray\u00a0scale\u00a0levels\u00a0(8-bit\u00a0or\u00a010-bit\u00a0systems)\u00a0are\u00a0more\u00a0common,\u00a0while\u00a0commercial\u00a0or\u00a0broadcast-grade\u00a0products\u00a0may\u00a0use\u00a0LED\u00a0displays\u00a0with\u00a04096\u00a0or\u00a0even\u00a0higher\u00a0gray\u00a0scale\u00a0levels.<\/span><\/p><\/div><\/div><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

        \n\t\t\t\t
        \n\t\t\t\t\t\t\t\t\t\t
        \n\t\t\t\t\t\t\t\t\t\t\"grayscale-level\"\t\t\t\t\t\t\t\t\t\t\t
        Figure 6 - Grayscale Level<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
        \n\t\t\t\t
        \n\t\t\t

        17. What is the Maximum Brightness of an LED Display?<\/h3><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
        \n\t\t\t\t
        \n\t\t\t\t\t\t\t
        \u00a0<\/div>

        The\u00a0maximum\u00a0brightness\u00a0of\u00a0an\u00a0LED\u00a0display\u00a0refers\u00a0to\u00a0the\u00a0brightness\u00a0level\u00a0of\u00a0each\u00a0primary\u00a0color\u00a0(Red,\u00a0Green,\u00a0and\u00a0Blue)\u00a0when\u00a0the\u00a0display\u00a0operates\u00a0at\u00a0its\u00a0highest\u00a0brightness\u00a0and\u00a0maximum\u00a0gray\u00a0scale\u00a0level,\u00a0given\u00a0a\u00a0certain\u00a0ambient\u00a0illuminance.<\/span><\/p><\/div><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

        \n\t\t\t\t
        \n\t\t\t

        18. What is Moir\u00e9 Pattern in LED Displays?<\/h3><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
        \n\t\t\t\t
        \n\t\t\t\t\t\t\t
        \u00a0<\/div>

        Moir\u00e9\u00a0pattern\u00a0in\u00a0LED\u00a0displays\u00a0refers\u00a0to\u00a0the\u00a0irregular\u00a0water-like\u00a0ripples\u00a0that\u00a0appear\u00a0when\u00a0capturing\u00a0images\u00a0or\u00a0videos\u00a0of\u00a0full-color\u00a0LED\u00a0screens.\u00a0In\u00a0physics,\u00a0these\u00a0ripples\u00a0are\u00a0known\u00a0as\u00a0“Moir\u00e9\u00a0patterns.”\u00a0<\/span><\/p>

        In\u00a0simple\u00a0terms,\u00a0Moir\u00e9\u00a0patterns\u00a0occur\u00a0when\u00a0two\u00a0grid-like\u00a0pixel\u00a0arrays\u00a0interfere\u00a0with\u00a0each\u00a0other,\u00a0causing\u00a0the\u00a0grid’s\u00a0bright\u00a0and\u00a0dark\u00a0parts\u00a0to\u00a0overlap\u00a0and\u00a0create\u00a0a\u00a0wave-like\u00a0visual\u00a0effect.\u00a0This\u00a0phenomenon\u00a0is\u00a0caused\u00a0by\u00a0the\u00a0interaction\u00a0between\u00a0the\u00a0LED\u00a0display’s\u00a0refresh\u00a0rate\u00a0and\u00a0the\u00a0camera’s\u00a0aperture\u00a0and\u00a0focal\u00a0length.<\/span><\/p><\/div><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

        \n\t\t\t\t
        \n\t\t\t\t\t\t\t\t\t\t
        \n\t\t\t\t\t\t\t\t\t\t\"what-is-Moire\u0301-Pattern\"\t\t\t\t\t\t\t\t\t\t\t
        Figure 7 - What is Moire\u0301 Pattern<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
        \n\t\t\t\t
        \n\t\t\t

        19. What is PCB?<\/h3><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
        \n\t\t\t\t
        \n\t\t\t\t\t\t\t
        \u00a0<\/div>

        PCB\u00a0stands\u00a0for\u00a0“Printed\u00a0Circuit\u00a0Board,”\u00a0which\u00a0is\u00a0used\u00a0to\u00a0mechanically\u00a0support\u00a0and\u00a0electrically\u00a0connect\u00a0electronic\u00a0components\u00a0using\u00a0conductive\u00a0tracks,\u00a0pads,\u00a0and\u00a0other\u00a0features\u00a0etched\u00a0from\u00a0copper\u00a0sheets\u00a0laminated\u00a0onto\u00a0a\u00a0non-conductive\u00a0substrate.<\/span><\/p><\/div><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

        \n\t\t\t\t
        \n\t\t\t

        20. What is the LED display unit board specification?<\/h3><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
        \n\t\t\t\t
        \n\t\t\t\t\t\t\t
        \u00a0<\/div>

        The\u00a0LED\u00a0display\u00a0unit\u00a0board\u00a0specification\u00a0refers\u00a0to\u00a0the\u00a0size\u00a0of\u00a0the\u00a0unit\u00a0board,\u00a0usually\u00a0expressed\u00a0as\u00a0the\u00a0length\u00a0multiplied\u00a0by\u00a0the\u00a0width,\u00a0measured\u00a0in\u00a0millimeters.\u00a0(For\u00a0example,\u00a0320\u00d7160)<\/span><\/p><\/div><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

        \n\t\t\t\t
        \n\t\t\t

        21. What is the resolution of the LED display unit board?<\/h3><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
        \n\t\t\t\t
        \n\t\t\t\t\t\t\t
        \u00a0<\/div>

        The\u00a0resolution\u00a0of\u00a0the\u00a0LED\u00a0display\u00a0unit\u00a0board\u00a0refers\u00a0to\u00a0how\u00a0many\u00a0pixels\u00a0are\u00a0on\u00a0one\u00a0unit\u00a0board,\u00a0usually\u00a0expressed\u00a0as\u00a0the\u00a0number\u00a0of\u00a0rows\u00a0multiplied\u00a0by\u00a0the\u00a0number\u00a0of\u00a0columns\u00a0of\u00a0pixels.\u00a0(For\u00a0example,\u00a0128\u00d764)<\/span><\/p><\/div><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

        \n\t\t\t\t
        \n\t\t\t\t\t\t\t\t\t\t
        \n\t\t\t\t\t\t\t\t\t\t\"resolution\t\t\t\t\t\t\t\t\t\t\t
        Figure 8 - Resolution of LED Displays<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
        \n\t\t\t\t
        \n\t\t\t

        22. What is BOM?<\/h3><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
        \n\t\t\t\t
        \n\t\t\t\t\t\t\t
        \u00a0<\/div>

        BOM\u00a0stands\u00a0for\u00a0“Bill\u00a0of\u00a0Materials,”\u00a0which\u00a0is\u00a0a\u00a0document\u00a0that\u00a0describes\u00a0the\u00a0product’s\u00a0structure\u00a0in\u00a0a\u00a0data\u00a0format\u00a0recognizable\u00a0by\u00a0computers.\u00a0It\u00a0serves\u00a0as\u00a0the\u00a0primary\u00a0file\u00a0in\u00a0an\u00a0ERP\u00a0system,\u00a0allowing\u00a0the\u00a0system\u00a0to\u00a0identify\u00a0the\u00a0product\u00a0structure\u00a0and\u00a0act\u00a0as\u00a0a\u00a0link\u00a0for\u00a0communication\u00a0across\u00a0various\u00a0business\u00a0operations.\u00a0The\u00a0five\u00a0main\u00a0types\u00a0of\u00a0BOM\u00a0in\u00a0an\u00a0ERP\u00a0system\u00a0are\u00a0Indented\u00a0BOM,\u00a0Summarized\u00a0BOM,\u00a0Phantom\u00a0BOM,\u00a0Cost\u00a0BOM,\u00a0and\u00a0Planning\u00a0BOM.<\/span><\/p><\/div><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

        \n\t\t\t\t
        \n\t\t\t\t\t\t\t\t\t\t
        \n\t\t\t\t\t\t\t\t\t\t\"bom-of-led-display\"\t\t\t\t\t\t\t\t\t\t\t
        Figure 9 - BOM of LED Display<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
        \n\t\t\t\t
        \n\t\t\t

        23. What is white balance, what is white balance adjustment?<\/h3><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
        \n\t\t\t\t
        \n\t\t\t\t\t\t\t
        \u00a0<\/div>

        White\u00a0balance\u00a0refers\u00a0to\u00a0the\u00a0balance\u00a0of\u00a0white\u00a0color,\u00a0specifically\u00a0the\u00a0balance\u00a0of\u00a0the\u00a0brightness\u00a0ratios\u00a0of\u00a0RGB\u00a0(Red,\u00a0Green,\u00a0Blue)\u00a0colors.\u00a0The\u00a0adjustment\u00a0of\u00a0the\u00a0brightness\u00a0ratios\u00a0of\u00a0RGB\u00a0colors\u00a0and\u00a0the\u00a0white\u00a0point\u00a0coordinates\u00a0is\u00a0called\u00a0white\u00a0balance\u00a0adjustment.<\/span><\/p><\/div><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

        \n\t\t\t\t
        \n\t\t\t

        24. What is contrast?<\/h3><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
        \n\t\t\t\t
        \n\t\t\t\t\t\t\t
        \u00a0<\/div>

        Contrast\u00a0is\u00a0the\u00a0ratio\u00a0between\u00a0the\u00a0maximum\u00a0brightness\u00a0of\u00a0an\u00a0LED\u00a0display\u00a0and\u00a0the\u00a0brightness\u00a0of\u00a0the\u00a0background\u00a0under\u00a0certain\u00a0ambient\u00a0illumination.<\/span><\/p><\/div><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

        \n\t\t\t\t
        \n\t\t\t

        25. What is color temperature?<\/h3><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
        \n\t\t\t\t
        \n\t\t\t\t\t\t\t
        \u00a0<\/div>

        Color\u00a0temperature\u00a0refers\u00a0to\u00a0the\u00a0temperature\u00a0of\u00a0a\u00a0light\u00a0source\u00a0when\u00a0its\u00a0emitted\u00a0color\u00a0matches\u00a0that\u00a0of\u00a0a\u00a0black\u00a0body\u00a0radiating\u00a0at\u00a0a\u00a0specific\u00a0temperature.\u00a0<\/span><\/p>

        LED\u00a0color\u00a0temperature\u00a0is\u00a0measured\u00a0in\u00a0absolute\u00a0temperature\u00a0units\u00a0Kelvin\u00a0(K).\u00a0As\u00a0a\u00a0standard\u00a0black\u00a0body\u00a0is\u00a0heated,\u00a0its\u00a0color\u00a0changes\u00a0from\u00a0deep\u00a0red\u00a0to\u00a0light\u00a0red,\u00a0then\u00a0to\u00a0orange-yellow,\u00a0white,\u00a0and\u00a0finally\u00a0to\u00a0blue.\u00a0When\u00a0a\u00a0light\u00a0source\u00a0matches\u00a0the\u00a0color\u00a0of\u00a0the\u00a0black\u00a0body\u00a0at\u00a0a\u00a0specific\u00a0temperature,\u00a0that\u00a0temperature\u00a0is\u00a0known\u00a0as\u00a0the\u00a0color\u00a0temperature\u00a0of\u00a0the\u00a0light\u00a0source.<\/span><\/p><\/div><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

        \n\t\t\t\t
        \n\t\t\t

        26. What is color deviation?<\/h3><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
        \n\t\t\t\t
        \n\t\t\t\t\t\t\t
        \u00a0<\/div>

        Color\u00a0deviation\u00a0in\u00a0LED\u00a0displays\u00a0refers\u00a0to\u00a0the\u00a0observable\u00a0differences\u00a0in\u00a0colors\u00a0produced\u00a0by\u00a0the\u00a0combination\u00a0of\u00a0red,\u00a0green,\u00a0and\u00a0blue\u00a0LEDs,\u00a0as\u00a0these\u00a0three\u00a0colors\u00a0are\u00a0made\u00a0from\u00a0different\u00a0materials\u00a0and\u00a0have\u00a0varying\u00a0spectral\u00a0distributions.\u00a0When\u00a0observing\u00a0LEDs\u00a0from\u00a0certain\u00a0angles,\u00a0their\u00a0colors\u00a0may\u00a0appear\u00a0altered.\u00a0Human\u00a0eyes\u00a0have\u00a0a\u00a0better\u00a0ability\u00a0to\u00a0judge\u00a0the\u00a0true\u00a0colors\u00a0of\u00a0real\u00a0images,\u00a0such\u00a0as\u00a0movie\u00a0scenes,\u00a0compared\u00a0to\u00a0computer-generated\u00a0images.<\/span><\/p><\/div><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

        \n\t\t\t\t
        \n\t\t\t

        27. What is frame rate?<\/h3><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
        \n\t\t\t\t
        \n\t\t\t\t\t\t\t
        \u00a0<\/div>

        Frame\u00a0rate\u00a0is\u00a0a\u00a0property\u00a0of\u00a0video\u00a0files,\u00a0indicating\u00a0the\u00a0number\u00a0of\u00a0times\u00a0per\u00a0second\u00a0the\u00a0frames\u00a0of\u00a0the\u00a0video\u00a0are\u00a0updated,\u00a0measured\u00a0in\u00a0Hertz\u00a0(Hz).\u00a0In\u00a0other\u00a0words,\u00a0frame\u00a0rate\u00a0represents\u00a0how\u00a0many\u00a0frames\u00a0of\u00a0the\u00a0video\u00a0are\u00a0shown\u00a0per\u00a0second.\u00a0Due\u00a0to\u00a0the\u00a0persistence\u00a0of\u00a0human\u00a0vision,\u00a0when\u00a0the\u00a0frame\u00a0rate\u00a0reaches\u00a0a\u00a0certain\u00a0level,\u00a0the\u00a0discrete\u00a0frames\u00a0appear\u00a0as\u00a0continuous.\u00a0Frame\u00a0rate\u00a0is\u00a0an\u00a0important\u00a0indicator\u00a0of\u00a0video\u00a0continuity.<\/span><\/p><\/div><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

        \n\t\t\t\t
        \n\t\t\t

        28. What is refresh rate?<\/h3><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
        \n\t\t\t\t
        \n\t\t\t\t\t\t\t
        \u00a0<\/div>

        Refresh\u00a0rate\u00a0refers\u00a0to\u00a0the\u00a0number\u00a0of\u00a0times\u00a0the\u00a0display\u00a0screen\u00a0repeats\u00a0the\u00a0display\u00a0of\u00a0an\u00a0image\u00a0within\u00a0a\u00a0unit\u00a0of\u00a0time,\u00a0measured\u00a0in\u00a0Hertz\u00a0(Hz).\u00a0It\u00a0is\u00a0an\u00a0important\u00a0indicator\u00a0of\u00a0LED\u00a0display\u00a0screen\u00a0stability\u00a0and\u00a0flicker-free\u00a0performance.\u00a0The\u00a0refresh\u00a0rate\u00a0is\u00a0an\u00a0inherent\u00a0parameter\u00a0of\u00a0the\u00a0LED\u00a0display\u00a0screen\u00a0itself.\u00a0A\u00a0higher\u00a0refresh\u00a0rate\u00a0reduces\u00a0the\u00a0perception\u00a0of\u00a0flickering\u00a0and\u00a0improves\u00a0image\u00a0clarity,\u00a0while\u00a0a\u00a0lower\u00a0refresh\u00a0rate\u00a0may\u00a0lead\u00a0to\u00a0flickering\u00a0and\u00a0jittering\u00a0on\u00a0the\u00a0screen.<\/span><\/p><\/div><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

        \n\t\t\t\t
        \n\t\t\t

        29. What is Viewing Angle? What is Viewable Angle? What is Optimal Viewing Angle?<\/h3><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
        \n\t\t\t\t
        \n\t\t\t\t\t\t\t\t\t\t
        \n\t\t\t\t\t\t\t\t\t\t\"led-screen-view-angle\"\t\t\t\t\t\t\t\t\t\t\t
        Figure 10 - LED Screen View Angle<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
        \n\t\t\t\t
        \n\t\t\t\t\t\t\t
        \u00a0<\/div>

        Viewing\u00a0Angle\u00a0refers\u00a0to\u00a0the\u00a0angle\u00a0at\u00a0which\u00a0the\u00a0brightness\u00a0decreases\u00a0to\u00a0half\u00a0of\u00a0the\u00a0LED\u00a0display’s\u00a0normal\u00a0brightness\u00a0along\u00a0the\u00a0normal\u00a0direction.\u00a0It\u00a0is\u00a0the\u00a0angle\u00a0between\u00a0two\u00a0observing\u00a0directions\u00a0on\u00a0the\u00a0same\u00a0plane\u00a0and\u00a0the\u00a0normal\u00a0direction,\u00a0divided\u00a0into\u00a0horizontal\u00a0and\u00a0vertical\u00a0viewing\u00a0angles.<\/span><\/p>

        Viewable\u00a0Angle\u00a0is\u00a0the\u00a0angle\u00a0at\u00a0which\u00a0one\u00a0can\u00a0just\u00a0see\u00a0the\u00a0content\u00a0on\u00a0the\u00a0display\u00a0screen,\u00a0relative\u00a0to\u00a0the\u00a0display\u00a0screen’s\u00a0normal\u00a0direction.<\/span><\/p>

        Optimal\u00a0Viewing\u00a0Angle\u00a0is\u00a0the\u00a0angle\u00a0at\u00a0which\u00a0the\u00a0content\u00a0on\u00a0the\u00a0display\u00a0screen\u00a0is\u00a0seen\u00a0most\u00a0clearly,\u00a0without\u00a0color\u00a0distortion.\u00a0It\u00a0is\u00a0the\u00a0angle\u00a0between\u00a0the\u00a0clearest\u00a0observing\u00a0direction\u00a0and\u00a0the\u00a0normal\u00a0direction\u00a0of\u00a0the\u00a0display\u00a0screen.<\/span><\/p><\/div><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

        \n\t\t\t\t
        \n\t\t\t

        30. What is optimal viewing distance?<\/h3><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
        \n\t\t\t\t
        \n\t\t\t\t\t\t\t\t\t\t
        \n\t\t\t\t\t\t\t\t\t\t\"view-distance-of-led-display\"\t\t\t\t\t\t\t\t\t\t\t
        Figure 11 - LED Screen View Distance<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
        \n\t\t\t\t
        \n\t\t\t\t\t\t\t
        \u00a0<\/div>

        The\u00a0optimal\u00a0viewing\u00a0distance\u00a0is\u00a0the\u00a0vertical\u00a0distance\u00a0from\u00a0the\u00a0screen\u00a0where\u00a0the\u00a0content\u00a0on\u00a0the\u00a0display\u00a0can\u00a0be\u00a0seen\u00a0completely,\u00a0without\u00a0color\u00a0distortion,\u00a0and\u00a0with\u00a0the\u00a0clearest\u00a0image\u00a0quality.\u00a0It\u00a0refers\u00a0to\u00a0the\u00a0distance\u00a0at\u00a0which\u00a0the\u00a0viewer\u00a0can\u00a0have\u00a0the\u00a0best\u00a0viewing\u00a0experience\u00a0in\u00a0terms\u00a0of\u00a0clarity\u00a0and\u00a0color\u00a0accuracy.<\/span><\/p><\/div><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

        \n\t\t\t\t
        \n\t\t\t

        31. What is mean of the dead pixel? How many types?<\/h3><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
        \n\t\t\t\t
        \n\t\t\t\t\t\t\t
        \u00a0<\/div>

        A\u00a0“dead\u00a0pixel,”\u00a0also\u00a0known\u00a0as\u00a0a\u00a0“stuck\u00a0pixel”\u00a0or\u00a0“blinking\u00a0pixel,”\u00a0is\u00a0a\u00a0type\u00a0of\u00a0malfunctioning\u00a0pixel\u00a0on\u00a0an\u00a0LED\u00a0display\u00a0where\u00a0its\u00a0emission\u00a0state\u00a0doesn’t\u00a0match\u00a0the\u00a0control\u00a0signal.\u00a0Dead\u00a0pixels\u00a0are\u00a0categorized\u00a0into\u00a0three\u00a0types:\u00a0stuck-off\u00a0(or\u00a0dark)\u00a0pixels,\u00a0stuck-on\u00a0(or\u00a0bright)\u00a0pixels,\u00a0and\u00a0blinking\u00a0pixels.<\/span><\/p>

        Note:\u00a0The\u00a0term\u00a0“blinking\u00a0pixel”\u00a0may\u00a0refer\u00a0to\u00a0a\u00a0pixel\u00a0that\u00a0exhibits\u00a0intermittent\u00a0behavior,\u00a0switching\u00a0between\u00a0on\u00a0and\u00a0off\u00a0states,\u00a0causing\u00a0it\u00a0to\u00a0flicker.<\/span><\/p><\/div><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

        \n\t\t\t\t
        \n\t\t\t

        32. What is a static drive? What is a scanning driver? What is the difference between them?<\/h3><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
        \n\t\t\t\t
        \n\t\t\t\t\t\t\t
        \u00a0<\/div>

        Static\u00a0drive\u00a0refers\u00a0to\u00a0the\u00a0control\u00a0method\u00a0where\u00a0there\u00a0is\u00a0“point-to-point”\u00a0control\u00a0from\u00a0the\u00a0output\u00a0pin\u00a0of\u00a0the\u00a0driver\u00a0IC\u00a0to\u00a0the\u00a0individual\u00a0pixel.\u00a0Scanning\u00a0drive,\u00a0on\u00a0the\u00a0other\u00a0hand,\u00a0involves\u00a0“point-to-column”\u00a0control\u00a0from\u00a0the\u00a0output\u00a0pin\u00a0of\u00a0the\u00a0driver\u00a0IC\u00a0to\u00a0the\u00a0pixel,\u00a0requiring\u00a0a\u00a0row\u00a0control\u00a0circuit.\u00a0<\/span><\/p>

        By\u00a0examining\u00a0the\u00a0driver\u00a0board,\u00a0it\u00a0is\u00a0evident\u00a0that\u00a0static\u00a0drive\u00a0does\u00a0not\u00a0need\u00a0a\u00a0row\u00a0control\u00a0circuit,\u00a0which\u00a0leads\u00a0to\u00a0higher\u00a0costs\u00a0but\u00a0better\u00a0display\u00a0performance,\u00a0stability,\u00a0and\u00a0less\u00a0brightness\u00a0loss.\u00a0In\u00a0contrast,\u00a0scanning\u00a0drive\u00a0requires\u00a0a\u00a0row\u00a0control\u00a0circuit,\u00a0resulting\u00a0in\u00a0lower\u00a0costs\u00a0but\u00a0inferior\u00a0display\u00a0performance\u00a0and\u00a0greater\u00a0brightness\u00a0loss.<\/span><\/p><\/div><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

        \n\t\t\t\t
        \n\t\t\t\t\t\t\t\t\t\t
        \n\t\t\t\t\t\t\t\t\t\t\"dead-pixels\"\t\t\t\t\t\t\t\t\t\t\t
        Figure 12 - Dead Pixels<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
        \n\t\t\t\t
        \n\t\t\t

        33. What is a constant current drive? What is constant voltage drive?<\/h3><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
        \n\t\t\t\t
        \n\t\t\t\t\t\t\t
        \u00a0<\/div>

        Constant\u00a0current\u00a0refers\u00a0to\u00a0the\u00a0driver\u00a0IC\u00a0outputting\u00a0a\u00a0constant\u00a0current\u00a0value\u00a0within\u00a0the\u00a0allowed\u00a0working\u00a0environment\u00a0as\u00a0specified\u00a0during\u00a0design.\u00a0Constant\u00a0voltage,\u00a0on\u00a0the\u00a0other\u00a0hand,\u00a0means\u00a0the\u00a0driver\u00a0IC\u00a0outputs\u00a0a\u00a0constant\u00a0voltage\u00a0value\u00a0within\u00a0the\u00a0allowed\u00a0working\u00a0environment\u00a0as\u00a0specified\u00a0during\u00a0design.<\/p>

        In\u00a0constant\u00a0current\u00a0drive,\u00a0the\u00a0power\u00a0supply\u00a0output\u00a0provides\u00a0a\u00a0constant\u00a0current\u00a0under\u00a0the\u00a0allowed\u00a0load\u00a0conditions,\u00a0which\u00a0remains\u00a0unchanged\u00a0with\u00a0load\u00a0variations.\u00a0On\u00a0the\u00a0other\u00a0hand,\u00a0constant\u00a0voltage\u00a0drive\u00a0ensures\u00a0a\u00a0constant\u00a0voltage\u00a0output\u00a0under\u00a0the\u00a0allowed\u00a0load\u00a0conditions,\u00a0which\u00a0also\u00a0remains\u00a0unaffected\u00a0by\u00a0load\u00a0changes.<\/p>

        Constant\u00a0current\u00a0drive\u00a0is\u00a0typically\u00a0suitable\u00a0for\u00a0parallel\u00a0LED\u00a0circuits\u00a0and\u00a0is\u00a0commonly\u00a0used\u00a0in\u00a0low-power\u00a0LED\u00a0modules\u00a0and\u00a0light\u00a0strips.\u00a0On\u00a0the\u00a0other\u00a0hand,\u00a0constant\u00a0voltage\u00a0drive\u00a0is\u00a0usually\u00a0suitable\u00a0for\u00a0series\u00a0LED\u00a0circuits\u00a0and\u00a0is\u00a0widely\u00a0used\u00a0in\u00a0high-power\u00a0LEDs\u00a0and\u00a0premium\u00a0low-power\u00a0products.<\/p><\/div><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

        \n\t\t\t
        \n\t\t\t\t\t\t
        \n\t\t\t\t
        \n\t\t\t\t\t
        \n\n\t\t\t\n\t\t\t\t\t\t
        \n\n\t\t\t\t\t\t\t\t\t
        \n\t\t\t\t\t\t\n\t\t\t\t\t\t\tDesign Your Own\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/h5>\n\t\t\t\t\n\t\t\t\t\n\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
        \n\t\t\t\t
        \n\t\t\t\t\t
        \n\t\t\t\n\t\t\t\n\t\t\t\n\n\t\t\t\n\t\t\t
        \n\t\t\t\t\t\t\t\t
        \n\t\t\t\t\t\t\t\t\t\t\t\t