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Light guide element and backlight module

A technology of light guide element and backlight module, applied in the direction of optical element, optics, light guide, etc., can solve the problems of easy deformation of plastic frame, deformation of optical film, warping of optical film, etc., and achieve the effect of not easy deformation

Inactive Publication Date: 2015-11-25
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, the optical film is in direct contact with the plastic frame to fix the optical film. The plastic frame is usually made of soft polyester material. During assembly or handling, when it is bumped or squeezed by external force, the plastic frame is easy to Deformation, causing the optical film in contact with it to deform, causing the optical film to warp, resulting in light leakage, which will cause bright and uneven areas on the screen

Method used

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  • Light guide element and backlight module
  • Light guide element and backlight module
  • Light guide element and backlight module

Examples

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0023] The term "upper surface" in the present invention refers to the surface facing the same direction as the light-emitting surface, and the lower surface is the surface facing opposite to the light-emitting surface.

[0024] see figure 1 and figure 2 , one embodiment of the present invention provides a light guide element 100, including: a light guide part 110, a first protection wall 121, a second protection wall 122 and a third protection wall 123, the light guide part 110 has a first side 121 ', the second side 122', the third side 123' and the fourth side 130', the fourth side 130' is the light incident surface 130 of the light guide part 110, the first protective wall 121, the second protective wall 122 and the third The protection walls 123 are respectively arrang...

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PUM

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Abstract

The invention discloses a light guide element which comprises a light guide part, a first protection wall, a second protection wall and a third protection wall, wherein the first protection wall is opposite to the second protection wall; the third protection wall is located on one side far away from a light incoming surface of the light guide part; the first protection wall, the second protection wall, the third protection wall and the light guide part form accommodating space; and the accommodating space is used for accommodating an optical film. The light guide element can prevent the optical film from warping when the optical film receives an external force. The invention further discloses a backlight module.

Description

technical field [0001] The invention relates to the field of displays, in particular to a light guide element and a backlight module. Background technique [0002] The backlight module is one of the important components of the liquid crystal display device, and its function is to provide a light source with sufficient brightness and uniform light distribution for the liquid crystal display device. A backlight module usually includes a light source, a light guide element, an optical film set and a plastic frame, wherein the light source is set close to the light incident surface of the light guide element, the optical film is set on the light guide element, and the plastic frame is used to connect the light source, The light guide element and the optical film are fixed together. The optical film set usually includes a plurality of optical films, such as brightness enhancement films, prisms, etc., which are used to enhance the grayscale rendering effect of the backlight modul...

Claims

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Application Information

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IPC IPC(8): F21V8/00F21S8/00G02B6/00G02F1/13357
CPCF21S8/00G02B6/0016G02F1/133608
Inventor 曾杰
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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