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Novel scattering type light source based on mini LEDs and display device

A new type of light source technology, applied in optics, nonlinear optics, instruments, etc., can solve the problems of uneven brightness and darkness of the backlight screen, low light efficiency, increased thickness, etc., to achieve shortened light mixing distance, uniform surface light source, and reduced usage The effect of number

Inactive Publication Date: 2020-06-12
XIAN WINGTECH ELECTRONICS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the limitation of the light emitting angle of mini LED, please refer to figure 2 As shown, the light energy emitted by it is mainly concentrated in a certain range in the direction of ±δ (such as 90°), resulting in uneven brightness and darkness of the backlight screen. Most of the existing solutions to this problem are: 1. Use high-thickness Diffusion to increase the light mixing distance and atomization effect, but the disadvantage of this method is that the thickness of the product increases and the light efficiency is low

Method used

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  • Novel scattering type light source based on mini LEDs and display device
  • Novel scattering type light source based on mini LEDs and display device
  • Novel scattering type light source based on mini LEDs and display device

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Embodiment 1

[0027] Embodiment 1 of the present invention discloses a new type of scattering backlight light source based on mini LED, please refer to image 3 As shown, it mainly includes a substrate 10 and a mini LED 20; the mini LED 20 is installed on the substrate 10, the substrate 10 is provided with a power circuit, 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. Provide power to the mini LED 20 to make the mini LED 20 emit light.

[0028] In order to reduce the cost of the backlight light source and realize its thinning, in a preferred embodiment of the present invention, a light-scattering adhesive layer 30 is provided on the substrate 10 . The light-scattering adhesive layer 30 and the mini LED 20 are located on the same side of the substrate 10, and the light-scattering adhesive layer 30 covers the miniLED 20; through special microstructural treatment on the light-scattering adhesive layer 3...

Embodiment 2

[0042] Embodiment 2 discloses a display device, including the above-mentioned backlight module. The display device here may be any product or component with a display function such as a liquid crystal display panel, electronic paper, mobile phone, tablet computer, television, monitor, notebook computer, digital photo frame, navigator, and the like.

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Abstract

The invention discloses a novel scattering type light source based on a mini LED. The invention relates to the technical field of backlight sources. The novel scattering type light source comprises asubstrate and a mini LED, wherein the mini LED is arranged on the base plate; the substrate is further provided with a light scattering glue layer, the light scattering glue layer and the mini LED arearranged on the same side, the light scattering glue layer covers the mini LED, and the light scattering glue layer constructs a microstructure based on the luminous intensity curve of the mini LED so as to change the luminous intensity arrangement of the mini LED. The embodiment of the invention further discloses a display device comprising the novel scattering type light source based on the mini LED. According to the embodiment of the invention, the light and thin product is realized and the cost is reduced by arranging the light-scattering glue layer microstructure.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of backlight light sources, and in particular to a novel scattering light source and display device based on mini LEDs. Background technique [0002] As the market demand for local dimming is getting stronger, mini LED will be applied immediately. The structure of the existing miniLED BLU backlight source, such as figure 1 As shown, it includes PCB substrate 1, mini LED 2, diffuser plate 3, quantum film layer 4, lower prism 5 and upper prism 6 from bottom to top, wherein, mini LED 2 is mounted on PCB substrate 1, and mini LED 2 is used for In order to generate light by connecting with the power circuit on the PCB substrate 1, the diffusion plate 3 realizes increasing the light mixing distance and the atomization effect, the quantum film layer 4 is used to be stimulated to generate the corresponding excitation spectrum (blue light here), the lower prism 5 and The upper prism 6 is a bri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357
CPCG02F1/133603G02F1/133606G02F1/133611G02F1/133607
Inventor 裴效增
Owner XIAN WINGTECH ELECTRONICS TECH CO LTD
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