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Led Curtain Display

Large Led Curtain Display is another huge market for high brightness LED applications, including: graphics, text, digital monochrome, color and full color display. Table 2 lists the various uses LED display. The traditional large-screen active display commonly used incandescent lamp, fiber, cathode-ray tubes; passive displays commonly used method flop. Table 3 compares the performance of several displays. LED display LED itself has been limited performance and color. Today, high brightness AlGaInP, TS-AlGaAs, InGaN LED has been able to provide a bright red, yellow, green and blue colors can be realized fully meet the requirements of full-color large-screen display. LED display assembly into a variety of structures according to the pixel size, smaller pixel diameter generally less than 5mm, each pixel with a T-1 (3/4) of the LED lamp monochrome display, each pixel of the color display for color T-1 (3/4) of the LED lights, full color display requires three T-1 red, green, and blue light, or a multi-chip assembly of T-1 (3/4) of the LED lamp as a pixel . Large pixel is by many T-1 (3/4) red, green, and blue light are combined to make the LED. With InGaN (480nm) blue, InGaN (515nm), green and ALGaAS (637nm) LED display red LED lights as the three primary colors, can provide a realistic full-color performance, but with a larger range of colors including: blue-green, green, red, etc. with the International system Committee (NTSC) TV provides television color range basically.

Existing common indoor full color scheme of comparison:

1. Dot matrix module program: the first design, the pseudo-color dot matrix screen indoor evolved advantage: the most advantageous cost of raw materials and the production process is simple, stable quality. Cons: poor color consistency, mosaic more serious, showing poor results.

2. Single lamp solution: To solve the problem of color dot matrix screen, draw a plan outdoor display technology, while the pixel multiplexing (also known as pixel-sharing technology, virtual pixel technology) transplanted to the indoor outdoor display.

Advantages: Good color consistency than dot matrix module approach.

Disadvantages: blending effect poor little perspective, about the horizontal viewing with color. More complex processing, antistatic demanding. The actual pixel resolution more difficult to achieve 10,000 points.

3. Chip solution: using SMD led display panel element solution.

Advantages: color consistency, perspective and other important indicators are displayed in the best kind of existing programs, especially triple paste the mixing effect is very good.

Disadvantages: cumbersome process, the cost is too high.

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