Light guide plate, backlight module and display device

A technology of backlight module and light guide plate, applied in optics, nonlinear optics, instruments, etc., can solve the problem of uneven luminous intensity, achieve the effect of small light mixing area, improve light uniformity, and increase directionality and uniformity

Pending Publication Date: 2021-12-07
RADIANT OPTO ELECTRONICS SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since LED has the luminous characteristics of a point light source, it has the problem of uneven luminous intensity

Method used

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  • Light guide plate, backlight module and display device
  • Light guide plate, backlight module and display device
  • Light guide plate, backlight module and display device

Examples

Experimental program
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Embodiment Construction

[0020] The aforementioned and other technical content, features and effects of the present invention will be clearly presented in the following detailed description of preferred embodiments with reference to the accompanying drawings. The directional terms mentioned in the following embodiments, such as: up, down, left, right, front, back, bottom, top, etc., are only directions referring to the drawings. Therefore, the directional terms used herein are only used to illustrate rather than limit the present invention. In addition, in each of the following embodiments, the same or similar elements will be given the same or similar reference numerals.

[0021] In the present invention, the light guide plate can be used in a backlight module, and the backlight module can be used to provide a light source for a liquid crystal display (Liquid Crystal Display, LCD) panel. Each element in the backlight module includes a bottom surface and a top surface, and the bottom surface and the t...

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Abstract

The invention relates to a light guide plate, a backlight module and a display device. The light guide plate comprises a light emitting surface, and the light emitting surface comprises a convex lens, a plurality of first microstructures and a plurality of second microstructures. The convex lens is located in the center of the light-emitting face, the first microstructures are of an annular structure, the multiple first microstructures are concentric and surround the periphery of the convex lens, and the second microstructures are of an arc-shaped structure and surround the peripheries of the multiple first microstructures. The first microstructures and the second microstructures are respectively provided with a refracting surface used for deflecting transmitted light, and the refracting surface of the second microstructure at least located on the outermost side is provided with a plurality of strip-shaped protruding structures.

Description

technical field [0001] The invention relates to a light guide plate, a backlight module and a display device, and in particular to a light guide plate with good optical quality, and a backlight module and a display device using the light guide plate. Background technique [0002] Light Emitting Diodes (LEDs) have become the mainstream of backlight sources for Liquid Crystal Displays (Liquid Crystal Displays, LCDs) due to their advantages of small size, environmental protection, and long life. Since the LED has the luminous characteristics of a point light source, it has the problem of uneven luminous intensity. [0003] Please refer to figure 1 , which is a schematic diagram of the appearance of a light guide plate 10 of a conventional LCD. The light guide plate 10 includes a light-emitting surface 11. The light-emitting surface 11 can be divided into an active area (Active area, AA) 11a and a mixing area (Mixing area) 11b according to functional characteristics. The frame...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357
CPCG02F1/133606G02F1/133611
Inventor 郭育豪李宗龙陈雪茹叶静洁
Owner RADIANT OPTO ELECTRONICS SUZHOU
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