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Light guide plate and backlight module

A technology of backlight module and light guide plate, applied in the directions of light guide, optics, optical components, etc., can solve the problem of uneven light output of the light guide plate, and achieve the effect of good light uniformity and improved light output uniformity.

Inactive Publication Date: 2011-08-31
CORETRONIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the light beams emitted by the LEDs are directional, when the light beams emitted by the LEDs enter the light guide plate through the light incident surface, dark areas and bright areas of different brightness will be formed, making the light output of the light guide plate uneven

Method used

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  • Light guide plate and backlight module
  • Light guide plate and backlight module
  • Light guide plate and backlight module

Examples

Experimental program
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Embodiment Construction

[0043] The foregoing and other technical content, features, and effects of the present invention will be clearly presented in the following detailed description of a preferred embodiment with reference to the drawings. The directional terms mentioned in the following embodiments, for example: up, down, left, right, front or back, etc., are only directions for referring to the attached drawings. Therefore, the directional terms used are used to illustrate but not to limit the present invention.

[0044] Figure 1A Is a partial top view of a backlight module according to an embodiment of the present invention, and Figure 1B for Figure 1A The partial cross-sectional view shown by I-I'. Please also refer to Figure 1A versus Figure 1B , The backlight module 100 of this embodiment includes a light guide plate 200 and at least one light emitting element 300. The light guide plate 200 includes a first surface 210, a second surface 220 and a light incident surface 230. The light-emitti...

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PUM

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Abstract

The invention relates to a light guide plate and a backlight module. The light guide plate comprises a first surface, a second surface and an incident surface, wherein the second surface is opposite to the first surface; the incident surface is connected with the first surface and the second surface and is provided with a plurality of arc-shaped bulges and a plurality of V-shaped grooves; the V-shaped grooves and the arc-shaped bulges are formed alternately and are adjacent mutually; connecting lines of the V-shaped grooves and the arc-shaped bulges which are adjacent form a virtual surface; and the arc-shaped bulges and the V-shaped grooves are positioned on both sides of the virtual surface respectively. The invention also provides a backlight module using the light guide plate. By the light guide plate, the integral light-emitting uniformity of the backlight module can be improved.

Description

【Technical Field】 [0001] The invention relates to a light guide plate and a backlight module, and more particularly to a light guide plate and a backlight module with better light output uniformity. 【Background technique】 [0002] With the vigorous development of flat display technology, liquid crystal display (LCD) has gradually become the mainstream of display technology. It is commonly used in daily life and replaced the traditional cathode ray tube (CRT) . Since the liquid crystal panel in the liquid crystal display does not emit light by itself, a backlight module is required to provide a backlight source. The backlight module can be divided into a direct type backlight module and a side type backlight module according to the placement position of the light-emitting element. The side type backlight module can The key factor for the light from the side to guide the front to form a surface light source is that it has a light guide plate. [0003] In a side-light-in backlight ...

Claims

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Application Information

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IPC IPC(8): F21V8/00F21V13/12G02F1/13357
Inventor 陈柏良郭铭丰
Owner CORETRONIC
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