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Light guide plate and manufacturing method thereof, backlight module, display device

A light guide plate and light guide layer technology, applied in the fields of light guide plates, display devices, and backlight modules, can solve problems such as high cost, general anti-peeping effect, and reduced screen brightness

Active Publication Date: 2020-10-23
HEFEI BOE OPTOELECTRONICS TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing anti-peeping products, such as the anti-peeping film of 3M Company in the United States, will increase the thickness of the product and reduce the brightness of the screen after being attached, and the anti-peeping effect is average, and the cost is high

Method used

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  • Light guide plate and manufacturing method thereof, backlight module, display device
  • Light guide plate and manufacturing method thereof, backlight module, display device
  • Light guide plate and manufacturing method thereof, backlight module, display device

Examples

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Embodiment Construction

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0046] Embodiments of the present invention provide a light guide plate (Light Guide Plate, LGP), such as figure 1 with figure 2As shown, it includes: a light guide layer 10 and a grating layer 30 . The grating layer 30 is disposed on the side of the light emitting surface 102 of the light guide layer 10 , and the grating layer 30 includes a plurality of parallel and equidistant grating bars. Such as Figure 3a , 3b with Figure 4 As shown, the light gui...

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Abstract

A light guide plate, a method of fabricating a light guide plate, a backlight module and a display device are disclosed. The light guide plate includes a light guide layer and a grating layer. The light guide layer includes a light incident surface, a light exit surface, and a bottom surface opposite to the light exit surface. The grating layer is disposed on a side of the light guide layer with the light exit surface being on the side and including a plurality of grating strips. The bottom surface is provided with a plurality of optical dots. The plurality of optical dots are configured to deflect light rays from the light incident surface toward the grating strips. The plurality of grating strips are configured to deflect light rays emitted from the light exit surface toward a normal line of the light exit surface.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a light guide plate and a manufacturing method thereof, a backlight module and a display device. Background technique [0002] While the display device brings convenience to work and life, the importance of user's business secrets and / or personal privacy protection is increasing day by day, and the demand for screen anti-peeping increases accordingly. [0003] Existing anti-peeping products, such as the anti-peeping film of 3M Company in the United States, will increase the thickness of the product and reduce the brightness of the screen after being attached, and the anti-peeping effect is average, and the cost is relatively high. Contents of the invention [0004] Embodiments of the present invention provide a light guide plate and its manufacturing method, a backlight module, and a display device, which can realize the anti-peeping function without using an anti-peeping film...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/00
CPCG02B6/0043G02B6/005G02B6/0065G02B6/0036G02B6/0038G02B6/0016G02B6/0021G02B6/0031G09G3/22
Inventor 汤海高亮高露谭叶舟桑建禹璐朱贺玲谢东妹
Owner HEFEI BOE OPTOELECTRONICS TECH
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