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Backlight module and display device

A backlight module and backlight technology, applied in optics, nonlinear optics, instruments, etc., can solve the problems of complex structure of display modules, and achieve the effects of improving uniformity, achieving lightness and thickness, and reducing thickness.

Active Publication Date: 2021-07-20
WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application provides a backlight module and a display device to solve the technical problem of the complicated structure of the current display module

Method used

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  • Backlight module and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] like figure 1 As shown, the backlight module 10 provided for the first embodiment of the present application includes an optical adjustment layer 12, a dot layer 13 located on the optical adjustment layer 12, and a reflective layer 14 located on the dot layer 13, and the dots A backlight 15 is arranged inside the layer 13, and the outgoing light of the backlight 15 is reflected by the reflective layer 14 to the light exit side of the optical adjustment layer 12; wherein, the optical adjustment layer 12 is close to the backlight 15 The refractive index of one side is smaller than that of the dot layer 13 .

[0033] The optical adjustment layer 12 includes a first medium layer 121, a prism layer 122 on the first medium layer 121, a diffusion layer 123 on the prism layer 122, and a second medium layer on the diffusion layer 123. Layer 124, the second medium layer 124 is located on the side away from the reflective layer 14 on the dot layer 13;

[0034] Wherein, the refra...

Embodiment 2

[0045] like figure 2 As shown, the backlight module 10 provided for the second embodiment of the present application includes an optical adjustment layer 12, a dot layer 13 located on the optical adjustment layer 12, and a reflective layer 14 located on the dot layer 13, and the dots A backlight 15 is arranged inside the layer 13, and the outgoing light of the backlight 15 is reflected by the reflective layer 14 to the light exit side of the optical adjustment layer 12; wherein, the optical adjustment layer 12 is close to the backlight 15 The refractive index of one side is smaller than that of the dot layer 13 .

[0046] The optical adjustment layer 12 includes a first medium layer 121, a prism layer 122 on the first medium layer 121, a diffusion layer 123 on the prism layer 122, and a second medium layer on the diffusion layer 123. Layer 124, the second medium layer 124 is located on the side away from the reflective layer 14 on the dot layer 13;

[0047] Wherein, the refra...

Embodiment 3

[0058] like image 3 As shown, the backlight module 10 provided for the third embodiment of the present application includes an optical adjustment layer 12, a dot layer 13 located on the optical adjustment layer 12, and a reflective layer 14 located on the dot layer 13, and the dots A backlight 15 is arranged inside the layer 13, and the outgoing light of the backlight 15 is reflected by the reflective layer 14 to the light exit side of the optical adjustment layer 12; wherein, the optical adjustment layer 12 is close to the backlight 15 The refractive index of one side is smaller than that of the dot layer 13 .

[0059] The optical adjustment layer 12 includes a first medium layer 121, a prism layer 122 on the first medium layer 121, a diffusion layer 123 on the prism layer 122, and a second medium layer on the diffusion layer 123. Layer 124, the second medium layer 124 is located on the side away from the reflective layer 14 on the dot layer 13;

[0060] Wherein, the refra...

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Abstract

The embodiment of the invention provides a backlight module and a display device, the backlight module comprises an optical adjusting layer, a lattice point layer located on the optical adjusting layer and a reflecting layer located on the lattice point layer, a backlight source is arranged in the lattice point layer, and part of emergent light of the backlight source is guided out from the light emitting side of the optical adjusting layer through the reflecting layer, wherein the refractive index of one side, close to the lattice point layer, of the optical adjustment layer is smaller than that of the lattice point layer. According to the backlight module and the display device provided by the embodiment of the invention, by arranging the lattice point structure with the high refractive index and matching the lattice point structure with the dielectric layer material with the low refractive index, emergent light at a certain angle can only transmit and pass through the dielectric layer material with the low refractive index by applying a total reflection principle, so that the uniformity of the emergent light of a backlight source is improved, various optical elements in the backlight module are integrated on the same substrate, so that the thickness of the backlight module is reduced, and the display device is further lightened and thinned.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a backlight module and a display device. Background technique [0002] With the development of digital technology, liquid crystal display products (Liquid Crystal Display, LCD) have been widely used in all aspects of daily life, and the requirements for thinner and lighter liquid crystal display modules are gradually increasing. [0003] The backlight unit (BLU) in the current liquid crystal display products is composed of multi-layer optical films, the structure is complex and the assembly process is cumbersome, and it is difficult to realize the thinning of the liquid crystal display module. [0004] Therefore, there is an urgent need for a backlight module to solve the above technical problems. Contents of the invention [0005] Embodiments of the present application provide a backlight module and a display device to solve the current technical problem of complex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357
CPCG02F1/133606
Inventor 尹炳坤
Owner WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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