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LED (light emitting diode) display unit panel with shading films

A display unit and film technology, applied in electrical components, instruments, circuits, etc., can solve the problems of affecting the viewing angle of the display screen, poor light shape space consistency, and many components and processes. Hole process, improve reliability, reduce cost effect

Active Publication Date: 2015-04-15
长春希龙显示技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that due to occlusion, the spatial consistency of the light shapes of red, green, and blue in the pixel unit becomes poor, which will greatly affect the viewing angle of the display screen
At the same time, the "integrated three-in-one" module also increases the cost due to the many components and processes involved.

Method used

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  • LED (light emitting diode) display unit panel with shading films
  • LED (light emitting diode) display unit panel with shading films
  • LED (light emitting diode) display unit panel with shading films

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] like figure 2 As shown, the LED display unit board with light-shielding film of the present invention comprises an LED display module made of driver IC7, driver circuit board 8, circuit board 5 and LED wafer 1, transparent mask 3 and light-shielding layer; driver IC7 is welded on On the driving circuit board 8, the rear surface of the circuit board 5 is connected to the driving circuit board 8 by pin headers 10, and m×n LED wafers 1 are fixed on the front surface of the circuit board 5; the light-shielding layer includes the first polarization Sheet 4 and the second polarizer 2, the two polarizers have windows corresponding to the position of each LED wafer 1; the first polarizer 4 is pasted on the front surface of the circuit board 5, and the second polarizer 2 is pasted on the first polarizer on the sheet 4, and the polarization directions of the first polarizer 4 and the second polarizer 2 are perpendicular to each other; the transparent mask 3 is a transparent enca...

Embodiment 2

[0036] like image 3 As shown, the LED display unit board with light-shielding film of the present invention comprises an LED display module made of driver IC7, driver circuit board 8, circuit board 5 and LED wafer 1, transparent mask 3 and light-shielding layer; driver IC7 is welded on On the driving circuit board 8, the rear surface of the circuit board 7 is connected to the driving circuit board 8 by a row of pins and sockets 10, and the LED wafer 1 is fixed on the front surface of the circuit board 5; the light-shielding layer includes a first polarizer 4 and a second polarizer sheet 2, the first polarizer 4 is bonded to the front surface of the circuit board 5, and a window is opened corresponding to the position of the LED wafer 1; the transparent mask 3 is a transparent encapsulation colloid, and the transparent encapsulation colloid is encapsulated between the first polarizer 4 and the On m×n LED wafers 1, the LED wafers 1 are embedded in the transparent packaging coll...

Embodiment 3

[0045] like Figure 4 As shown, the LED display unit board with light-shielding film of the present invention includes an LED display module composed of a driver IC7, a circuit board 6 and an LED wafer 1, a transparent mask 3 and a light-shielding layer; m×n LED wafers 1 are fixed on the front surface of the circuit board 6; the driver IC7 is fixed on the rear surface of the circuit board 6, and the driver IC is directly connected to the LED wafer through the circuit board 6; the light-shielding layer includes a first polarizer 4 and a second polarizer 2, both The polarizers have windows corresponding to the positions of the LED wafers 1; the first polarizer 4 is pasted on the front surface of the circuit board 6, the second polarizer 2 is pasted on the first polarizer 4, and the first polarizer 4 The polarization direction of the second polarizer 2 is perpendicular to each other; the transparent mask 3 is a transparent packaging colloid, and the transparent packaging colloid ...

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PUM

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Abstract

The invention relates to an LED (light emitting diode) display unit panel with shading films. The unit panel comprises an LED display module, transparent face masks and shading layers. The transparent masks are transparent packaging rubber colloids, and LED wafers in the LED display module are inserted in the transparent packaging rubber colloids. The shading layers comprise first polarizing films and second polarizing films. Windows are arranged at the positions, corresponding to the LED wafers, of the first polarizing films and the second polarizing films. The first polarizing films and the second polarizing films are positioned between the front surface of a circuit board and the back surfaces of the transparent packaging rubber colloids. The polarizing directions of the first polarizing films and the second polarizing films are perpendicular to each other. Otherwise, the first polarizing films are positioned between the front surface of the circuit board and the back surfaces of the transparent packaging rubber colloids, windows are arranged at the positions of the first polarizing films corresponding to the LED wafers, and the second polarizing films are adhered to the front surfaces of the transparent packaging rubber colloids. The LED display unit panel has high contrast; and meanwhile, conventional shading face masks and punching process are omitted, production procedures are simplified, cost is reduced, and pixel separation distance is further shortened.

Description

technical field [0001] The invention belongs to the technical field of LED flat panel display and relates to a display unit board of a high-density LED color display screen. Background technique [0002] In recent years, with the continuous improvement of people's viewing demand for display devices, high-end LED displays are developing towards high density. High-density LED display is generally considered to refer to a full-color LED display with a pixel pitch of less than 3mm, and its point density is greater than 111111 pixels / square meter. At present, there are two types of high-density LED display devices: surface mount (SMD) three-in-one modules and "integrated three-in-one" (ZL200720094395.1) modules. For the SMD method, on the one hand, each pixel needs to be packaged separately by high-end equipment, and the installation is more complicated, which increases the production cost; There is not much space for the layout, coupled with the requirements for display perfor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09F9/33H01L33/48H01L33/58
Inventor 马新峰王瑞光苗静陈宇田志辉
Owner 长春希龙显示技术有限公司
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