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Backlight module and display device

A technology for backlight modules and light sources, which is applied to identification devices, instruments, etc., can solve the problems of high temperature resistance and the influence of backlight module product quality, and achieve the effect of improving product quality.

Active Publication Date: 2022-03-08
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present application provides a backlight module and a display device, which are used to solve the problem that the high temperature involved in the thin film transistor layer or the color filter layer is caused by the non-high temperature resistant optical film layer in the backlight module of the display device being close to the thin film transistor layer or the color filter layer. The problem that the manufacturing process affects the product quality of the backlight module

Method used

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  • Backlight module and display device
  • Backlight module and display device
  • Backlight module and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] see figure 1 as well as figure 2 The multi-layer light concentrating film layer includes a brightness enhancement layer 105 on the substrate 102, a medium layer 106 on the brightness enhancement layer 105, a first light concentration layer 107 on the medium layer 106 and a reflective layer 108 located on the first light concentrating layer 107;

[0036] The first light concentrating layer 107 includes a first light concentrating unit 110 located on one side of the medium layer 106, and the light emitted by the light source 103 is converged to the brightness enhancement layer 105 through the first light concentrating unit 110;

[0037] The brightness enhancement layer 105 includes at least two brightness enhancement units 109, and the brightness enhancement units 109 converge the light from the first light concentrating layer 107 to the polarizing layer 101 and from the light on the polarizing layer 101 to The first opening leads out vertically.

[0038] In this embo...

Embodiment 2

[0075] see image 3 as well as Figure 4 , this embodiment is the same or similar to Embodiment 1, the difference is:

[0076] The multi-layer light-gathering film layer also includes a second light-gathering layer 113, and the second light-gathering layer 113 is located between the brightness enhancement layer 105 and the medium layer 106; or, the second light-gathering layer 113 is integrated with the brightness enhancement layer 105;

[0077] The second light concentrating layer 113 includes at least two second light concentrating units 114, and the light converged by the first light concentrating unit 110 is again converged by the second light concentrating unit 114 and exported to the brightness enhancement layer 105 .

[0078] In this embodiment, the refractive index of the second light collecting layer 113 is greater than the refractive index of the medium layer 106 . By setting the refractive index of the second light concentrating layer 113 higher than that of the...

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PUM

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Abstract

The application proposes a backlight module and a display device. The backlight module includes a substrate, a polarizing layer on one side of the substrate, an optical film layer on the side of the substrate away from the polarizing layer, and a light source on the side of the substrate and / or the optical film layer, and the light source is located on the optical film layer. between the polarizing layer. Wherein, the optical film layer includes multiple concave or convex light-concentrating film layers, and the light emitted by the light source is converged to the polarizing layer through the multi-layer light-concentrating film layers and vertically exported from the first opening on the polarizing layer. In this application, by disposing the non-high-temperature-resistant optical film layers such as the first light-gathering layer and the dielectric layer in the backlight module on the side of the substrate away from the display panel, it avoids the high-temperature process involved in the manufacture of the display device. The influence of the optical film layer improves the product quality of the display device.

Description

technical field [0001] The present application relates to the display field, in particular to a backlight module and a display device. Background technique [0002] As people's requirements on the product quality of display devices increase, how to improve the product quality of the backlight module is a major improvement direction for people. [0003] In the backlight module of the existing display device, there is a high-temperature process in the manufacturing process of the thin film transistor layer or the color filter layer. The materials of the optical film layers such as the optical layer and the dielectric layer are not resistant to high temperature, which affects the quality of the backlight module. [0004] Therefore, there is an urgent need for a new backlight module and display device to solve the above technical problems. Contents of the invention [0005] The present application provides a backlight module and a display device, which are used to solve the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09F9/00
CPCG09F9/00
Inventor 尹炳坤
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD