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Novel mini LED lamp panel structure and display device

A lamp board and a new type of technology, applied in the field of backlight light source, can solve the problems of low light efficiency, increase of miniLED, increase of product thickness, etc., and achieve the effect of uniform display effect, reduction of processes and large light radiation area.

Inactive Publication Date: 2020-06-05
XIAN WINGTECH ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Since the light energy emitted by the mini LED is mainly concentrated in a certain range, the backlight screen is unevenly bright and dark. The current solution to this problem is 1. Use a thick diffuser to increase the light mixing distance and fogging effect. This method brings The disadvantage is that the thickness of the product increases and the light efficiency is low
2. Reduce the layout spacing of mini LEDs, that is, increase the number of mini LEDs. The disadvantage of this method is high cost

Method used

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  • Novel mini LED lamp panel structure and display device
  • Novel mini LED lamp panel structure and display device
  • Novel mini LED lamp panel structure and display device

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1 of the present invention discloses a new type of scattering backlight light source based on mini LED, please refer to figure 2 As shown, it includes a substrate 10 and a mini LED 20; the mini LED 20 is installed on the substrate 10, a power circuit is arranged on the substrate 10, the mini LED 20 is located on the power circuit, and the external power supply is connected to the mini LED 20 through the power circuit, as The miniLED 20 provides power to make the mini LED 20 emit light, and at the same time, the substrate 10 is also used as a design carrier for the entire backlight source.

[0029] In Embodiment 1 of the present invention, a diffusion glue layer 41 mixed with diffusion particles is also included, the diffusion glue layer is disposed on the substrate and on the same side as the mini LED, and the diffusion glue layer covers the mini LED. Embodiment 1 of the present invention replaces the diffusion sheet (plate) of traditional products with the ...

Embodiment 2

[0032] Embodiment 2 of the present invention discloses a new type of scattering backlight light source based on mini LED, please refer to image 3 and Figure 4 As shown, it includes a substrate 10 and a mini LED 20; the mini LED 20 is installed on the substrate 10, a power circuit is arranged on the substrate 10, the mini LED 20 is located on the power circuit, and the external power supply is connected to the mini LED 20 through the power circuit, as The mini LED 20 provides power to make the mini LED 20 emit light, and at the same time, the substrate 10 also serves as a design carrier for the entire backlight source.

[0033] In the second embodiment of the present invention, a diffusion glue layer 42 mixed with diffusion particles is also included, the diffusion glue layer is disposed on the substrate and on the same side as the mini LED, and the diffusion glue layer covers the mini LED. In the second embodiment of the present invention, the diffusion sheet (plate) of tra...

Embodiment 3

[0037] Embodiment 3 is an improvement on the basis of Embodiment 1 or Embodiment 2. In Embodiment 3, a light-scattering adhesive layer 30 is provided between the diffusion adhesive layer 43 and the substrate 10 . The light-scattering adhesive layer 30 is used to totally reflect the light at a certain angle of the mini LED 20 to supplement areas with weaker intensity, so as to change the overall light intensity distribution and achieve a more uniform surface light source.

[0038] Please refer to Figure 5 As shown, the light-scattering adhesive layer 30 is disposed on the substrate and covers the mini LED, and the diffusion adhesive layer 43 is disposed on the light-emitting surface of the light-scattering adhesive layer 30 .

[0039] The astigmatism adhesive layer can be made of UV or non-UV materials, and a functional surface (microstructure) is designed on the astigmatism adhesive layer to change the propagation direction of light. The realization of the astigmatism adhesi...

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PUM

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Abstract

The invention discloses a novel mini LED lamp panel structure, and relates to the technical field of backlight sources. The novel mini LED lamp panel structure comprises a base plate and a mini LED, and the mini LED is installed on the base plate. The novel mini LED lamp panel structure further comprises a diffusion glue layer mixed with diffusion particles, and the diffusion glue layer is arranged on the base plate, is located on the same side with the mini LED and covers the mini LED. The embodiment of the invention further discloses a display device comprising the novel mini LED lamp panelstructure. The embodiment of the invention adopts the diffusion glue layer mixed with the diffusion particles, so that the optical radiation area is larger, and a more uniform display effect can be obtained.

Description

technical field [0001] Embodiments of the present invention relate to the field of backlight light source technology, and in particular to a novel mini LED lamp panel structure and a display device. Background technique [0002] As the market demand for local dimming (regional dimming) is getting stronger and stronger, mini LED will be applied immediately. The structure of the existing mini LED light board is as follows: figure 1 As shown, it includes substrate 1, mini LED 2, diffuser plate 3, quantum film layer 4, lower prism 5 and upper prism 6, mini LED 2 is mounted on substrate 1, and mini LED 2 is powered by connecting the substrate with an external power supply. To make the mini LED 2 emit light, the diffusion plate 3 , the quantum film layer 4 , the lower prism 5 and the upper prism 6 are sequentially installed on the substrate from bottom to top, that is, the mini LED 2 is located between the substrate 1 and the diffusion plate 3 . The diffuser plate 3 realizes incr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V19/00F21V5/08F21V5/02G09F9/00F21Y115/10
CPCF21V5/02F21V5/08F21V19/001F21Y2115/10G09F9/00
Inventor 裴效增
Owner XIAN WINGTECH ELECTRONICS TECH CO LTD