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

Straight-down back-light module group

A backlight module, direct type technology, used in optics, nonlinear optics, instruments, etc., can solve the problems of warpage and uneven temperature distribution of optical sheets, and achieve the effect of preventing warpage

Inactive Publication Date: 2009-08-19
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method of fixing the optical sheet can effectively fix the optical sheet under ideal conditions, it is still prone to occur due to factors such as differences in the preparation and assembly of the backlight module and uneven temperature distribution inside the backlight module. The phenomenon of optical sheet warping

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
  • Straight-down back-light module group
  • Straight-down back-light module group
  • Straight-down back-light module group

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] Please refer to the preferred embodiment 1 of the direct type backlight module of the present invention.

[0018] Such as Figure 2 to Figure 4 As shown, the direct-type backlight module 20 includes a frame 21, the upper surfaces of the opposite sides of the frame 21 are respectively provided with an optical sheet positioning part 212, and each optical sheet positioning part 212 is provided with an elastic piece 214; three optical sheet positioning parts 212 are provided; The sheet 23 has a convex portion 232 corresponding to the optical sheet positioning portion 212, and each convex portion 232 is provided with a positioning hole 234 corresponding to the elastic sheet 214, and the elastic sheet 214 of the optical sheet positioning portion 212 can be inserted into the positioning hole 234, so that the three optical sheets 23 are fixed to the frame 21 under tension; and a plurality of light sources 25 arranged under the three optical sheets 23.

[0019] In this embodime...

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

The invention relates to a direct type backlight module. The direct-type backlight module includes a frame, at least one optical sheet positioning portion is provided on at least one opposite side surface of the frame, and each optical sheet positioning portion is a groove with a gap facing the center of the frame, and in the groove The bottom of the bottom is provided with an elastic sheet; at least one optical sheet has a plurality of positioning holes corresponding to the elastic sheet, the elastic sheet can be inserted into the positioning hole and generate an elastic restoring force towards the outside of the frame, and the optical sheet is affected by the elastic restoring force Stretched and fixed on the frame; and a plurality of light sources arranged under the optical sheet. The backlight module of the present invention has the advantages of better fixing the optical sheet and effectively preventing the optical sheet from warping.

Description

【Technical field】 [0001] The invention relates to a direct type backlight module applied to a liquid crystal display device. 【Background technique】 [0002] Since the liquid crystal itself of the liquid crystal display panel does not have light-emitting characteristics, in order to achieve the display effect, it is necessary to provide the liquid crystal display panel with a surface light source device, such as a backlight module, whose function is to supply a surface light source with sufficient brightness and uniform distribution to the liquid crystal display panel. [0003] see figure 1 , an existing direct-type backlight module 10, which includes a frame 11, an optical sheet positioning groove 112 is provided on opposite side surfaces of the frame 11, and each optical sheet positioning groove 112 has a positioning pin 114; A plurality of optical sheets 13, which have a plurality of protrusions 132 corresponding to the plurality of optical sheet positioning grooves 112, ...

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): G02F1/13357G02F1/1335G02F1/133
CPCG02F1/133608
Inventor 章绍汉
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD