Back light module and optical plate

An optical plate and light source technology, applied in optics, optical components, nonlinear optics, etc., can solve the problem of uneven light output of the backlight module 100

Inactive Publication Date: 2009-01-14
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
View PDF0 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The matching design of the light-emitting diode 105 and the reflector 106 can reduce the bright area directly above the light-emitting diode 105 to a certain extent, but the backlight module 100 still has the disadvantage of uneven light output

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
  • Back light module and optical plate
  • Back light module and optical plate
  • Back light module and optical plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The backlight module and its optical board of the present invention will be further described in detail below with reference to the drawings and embodiments.

[0020] See figure 2 , shows the backlight module 200 of the preferred embodiment 1 of the present invention, which includes a frame 21 , a reflector 22 , a diffuser 23 , an edge-type point light source 25 and an optical plate 20 . The frame 21 includes a rectangular bottom plate 211 and four sidewalls 213 vertically extending from the edge of the bottom plate 211 to the same side thereof and connected to each other. The four side walls 213 and the bottom plate 211 together form a cavity 217 . The diffusion plate 23 is stacked on top of the plurality of side walls 213 for covering the cavity 217 . The cavity 217 is used for accommodating components such as the point light source 25 , the reflecting plate 22 and the optical plate 20 . The light emitted from the point light source 205 can be emitted through the ...

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

An optical plate comprises at least one optical plate unit that comprises a first surface and a second surface opposite to the first surface. A plurality of sealed V-shaped protuberances are formed on the first surface and a scattering layer is formed on the second surface and at least one light-source containing part is arranged at least on the first surface or the second surface. The invention also provides a backlight module adopting the optical plate and the backlight module has the advantage of even light-exiting.

Description

technical field [0001] The invention relates to a backlight module and its optical board, in particular to a backlight module for liquid crystal display and its optical board. Background technique [0002] Since the liquid crystal itself of the liquid crystal display panel does not have light-emitting properties, it is necessary to provide a light source device, such as a backlight module, for the liquid crystal display panel in order to achieve a display effect. The function of the backlight module is to supply a surface light source with sufficient brightness and uniform distribution to the LCD panel. [0003] See figure 1 , shows a conventional backlight module 100 , which includes a frame 101 , a reflector 102 , a diffuser 103 , a prism sheet 104 and at least one LED 105 . The frame 101 includes a bottom plate 1011 and a plurality of sidewalls 1013 vertically extending from the edge of the bottom plate 1011 to the same side thereof. The bottom plate 1011 and the plura...

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 Applications(China)
IPC IPC(8): G02B6/00G02F1/13357G02F1/1335
CPCG02B6/0043G02B6/0038G02B6/0031G02B6/0036G02B6/0021
Inventor 章绍汉
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap