Unlock instant, AI-driven research and patent intelligence for your innovation.

Light conductive board and backlight module

A technology of backlight module and light guide plate, which is applied in optics, nonlinear optics, instruments, etc., can solve the problems of low light utilization rate and loss, and achieve the effects of eliminating viewing angle deviation, reducing optical transmission medium, and improving light utilization rate

Inactive Publication Date: 2009-03-11
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the light is concentrated by one or two prism sheets, it can be matched with the viewing angle of the liquid crystal panel. However, when the prism sheet 18 is matched with the backlight module 11, there will be light loss, so the light utilization rate is low.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Light conductive board and backlight module
  • Light conductive board and backlight module
  • Light conductive board and backlight module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Please also refer to image 3 and Figure 4 , is a top perspective schematic diagram and a bottom perspective schematic diagram of the first embodiment of the light guide plate of the present invention, the light guide plate 30 includes a light incident surface 31, a light exit surface 32 and a bottom surface 34, the light exit surface 32 and the light incident surface 31 connected, the light-emitting surface 32 includes a plurality of parallel V-shaped grooves 33, the bottom surface 34 is connected to the light-incident surface 31, and the bottom surface 34 includes a plurality of V-shaped grooves 35, so that the incident light flows toward the light-emitting surface 32 direction shot.

[0026] see Figure 5 , is the front view of the light incident surface of the first embodiment of the light guide plate of the present invention, wherein the V-shaped groove 33 is an asymmetrical groove, and the ratio of the lengths of the two sides of the groove is between 0-0.5, an...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A light guide plate consists of a light incoming surface, a light outgoing surface and a bottom surface, It features that light incoming surface is connected with light outgoing surface, bottom surface is connected with light incoming surface, multiple trenches are set on bottom surface to let incoming light emit out along light outgoing surface direction, multiple parallel V shaped trenches are set on light outgoing surface for focusing light emitted out from light outgoing surface so as to raise light utilization.

Description

【Technical field】 [0001] The invention relates to a light guide plate and a backlight module using the light guide plate, in particular to a light guide plate for a liquid crystal display device and a backlight module using the light guide plate. 【Background technique】 [0002] Liquid crystal display devices have the advantages of thinness, low power consumption, and low radiation, and are widely used in electronic display devices such as notebook computers, mobile phones, electronic dictionaries, and liquid crystal televisions. In recent years, with the continuous development and promotion of liquid crystal display technology, its use environment has also changed. The frequency of outdoor use is increasing, and people's demand for vision is also increasing. It is hoped that a liquid crystal display with higher brightness can be developed. device. [0003] In recent years, inventions of backlight modules for improving light utilization efficiency have been continuously prop...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1335G02F1/133
Inventor 余泰成
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD