Integrated display unit board of color LED (light emitting diode) display screen and manufacture method thereof

An LED display and integrated display technology, applied in instruments, identification devices, etc., can solve the problems of affecting the viewing angle of the display, worsening the light shape space consistency, increasing the heat dissipation burden of the system, etc., to increase the utilization rate of light energy, Consistency improvement and the effect of improving the utilization of light energy

Active Publication Date: 2013-07-10
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, since most of the

Method used

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  • Integrated display unit board of color LED (light emitting diode) display screen and manufacture method thereof
  • Integrated display unit board of color LED (light emitting diode) display screen and manufacture method thereof
  • Integrated display unit board of color LED (light emitting diode) display screen and manufacture method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0039] Example 1

[0040] The dot pitch is d=2mm, and the resolution is 64×64 dot matrix arrangement packaged integrated LED display unit.

[0041] Such as image 3 , 4 As shown, the color LED display integrated display unit board of the present invention includes an LED display module composed of a driving IC7, a driving circuit board 9, a circuit board 11 and an LED crystal element 3, corresponding to the LED crystal element 3 with a light-emitting hole Mask substrate 1; The driver IC7 is soldered on the driver circuit board 9, the rear surface of the circuit board 11 and the driver circuit board 9 are connected by headers and female headers 10, and the LED wafer 3 is fixed on the front surface of the circuit board 11; 1 Choose FR-4 material board, the side wall of each light exit hole is coated with barium sulfate coating as the high reflectivity diffuse reflection surface 6; the back of the mask substrate 1 is glued to the front surface of the circuit board 11 through 3M double...

Example Embodiment

[0049] Example 2

[0050] Such as Figure 5 , 6 As shown, the color LED display integrated display unit board of the present invention includes an LED display module composed of a driving IC 7, a circuit board 5 and an LED crystal element 3, corresponding to the mask substrate 1 with a light-emitting hole at the position of the LED crystal element 3; LED The wafer 3 is fixed on the front surface of the circuit board 5, the driver IC 7 is fixed on the back surface of the circuit board 5, and the driver IC 7 is directly connected to the LED wafer 3 through the circuit board 5; the mask substrate 1 is made of FR-4 material, and each emits light The side wall of the hole is coated with a barium sulfate coating as a high-reflectivity diffuse reflection surface 6; the back of the mask substrate 1 is bonded and compounded with the front surface of the circuit board 5 through 3M double-sided tape 4; the light exit hole of the mask substrate 1 is filled with Transparent colloid 2, which i...

Example Embodiment

[0058] Example 3

[0059] The dot pitch is d=2mm, and the resolution is 64×64 dot matrix arrangement packaged integrated LED display unit.

[0060] Such as Figure 7 , 8 As shown, the color LED display integrated display unit board of the present invention includes an LED display module composed of a driving IC 7, a circuit board 5 and an LED crystal element 3, corresponding to the mask substrate 1 with a light-emitting hole at the position of the LED crystal element 3; LED The wafer 3 is fixed on the front surface of the circuit board 5, and the driver IC 7 is fixed on the back surface of the circuit board 5. The driver IC 7 is directly connected to the LED wafer 3 through the circuit board 5; the mask substrate 1 is made of PC material, and each light exit hole side The wall is coated with a white paint coating as a high reflectivity diffuse reflection surface 6; the back of the mask substrate 1 is bonded and compounded with the front surface of the circuit board 5 through 3M dou...

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Abstract

The invention relates to an integrated display unit of a color LED display screen and a manufacture method thereof. The integrated display unit board of the color LED display screen comprises an LED display module and a surface cover base plate, wherein the positions of the surface cover base plate, which correspond to LED wafers of the LED display module, are provided with light outlet holes; a drive IC (integrated circuit) is welded on a drive circuit board, the back surface of a circuit board is connected with the drive circuit board through pin headers and female headers, and the LED wafers are fixed on the front surface of the circuit board; the side wall of every light outlet hole of the surface cover base plate is provided with a high-reflectance diffuse-reflection surface; and the surface cover base plate is fixed on the circuit board, and the light outlet holes of the surface cover base plate are filled with transparent colloid. Due to the high-reflectance diffuse-reflection surfaces of the side walls of the light outlet holes of the surface cover base plate, light reaching the sidewalls of the light outlet holes can be subjected to the diffuse-reflection dodging to significantly improve the light emitting uniformity of LEDs which have three colors of red, green and blue, the light energy usage rate is increased, and the heat dissipation burden is reduced. The integrated display unit board of the color LED display screen has the advantages of large visual angle, low light loss and the like.

Description

technical field [0001] The invention belongs to the technical field of LED flat panel display, and relates to a color LED display integrated display unit board and a manufacturing method thereof. 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 requireme...

Claims

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Application Information

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IPC IPC(8): G09F9/33
Inventor 田志辉王瑞光肖传武苗静陈宇
Owner 长春希龙显示技术有限公司
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