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

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

Active Publication Date: 2019-03-29
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 fabrication method thereof, backlight module and display device
  • Light guide plate and fabrication method thereof, backlight module and display device
  • Light guide plate and fabrication method thereof, backlight module and display device

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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 and 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. like Figure 3a , 3b and Figure 4 As shown, the light guide la...

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Abstract

The embodiment of the invention provides a light guide plate and a fabrication method thereof, a backlight module and a display device, which relate to the technical field of display and can realize an anti-peep function without the help of a peep-proof film. The light guide plate comprises a light guide layer and a grating layer, wherein the light guide layer comprises a light incident surface, alight emergent surface and a bottom surface opposite to the light emergent surface, and multiple optical dots are arranged on the bottom surface; the grating layer is arranged at the side of the light emergent surface of the light guide layer and comprises multiple parallel and equidistantly-arranged grating strips; the multiple optical dots are used to enable light incident from the light incident surface to be emergent on the grating strips; and along the arrangement direction of the grating strips, the angle of light emergent from the grating layer is smaller than that of light emergent from the light guide layer.

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 Applications(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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