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Direct type backlight module

A backlight module, direct-type technology, applied in optics, nonlinear optics, instruments, etc., can solve the problems of increased frame production cost, increased backlight module weight, and complicated assembly, achieving light weight, improved assembly speed, cost reduction effect

Inactive Publication Date: 2007-12-12
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Although this kind of frame can securely lock the optical film on the light box, the assembly of the direct-type backlight module becomes very complicated because the screw hole structure corresponding to multiple components is required to be locked with screws.
Moreover, as the size of the direct-type backlight module increases, the manufacturing cost of the frame increases, and the weight of the entire backlight module also increases.

Method used

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Examples

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Embodiment Construction

[0020] The direct type backlight module and its frame of the present invention will be further described in detail below with reference to the drawings and embodiments.

[0021] Please refer to Fig. 2, the preferred embodiment of the present invention provides a direct-type backlight module 20, which includes a reflector 21, two optical films 22, two fixed frames 23, two lamp tube placement racks 24, and a plurality of lamps Tube 25, two lamp tube protection frames 26, multiple lamp tube clamping devices 27 and multiple screws 28.

[0022] The reflecting plate 21 includes a bottom plate 211 and two sidewalls 212 . The bottom plate 211 is a rectangular curved plate structure with a plurality of protrusions 2111 formed on its surface. The two sidewalls 212 vertically extend upward from two opposite sides of the bottom plate 211 . A plurality of protrusions 2111 extend along a direction parallel to the sidewall 212 and are arranged periodically at intervals.

[0023] Please re...

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Abstract

A vertical back light module comprises a reflective plate, at least one lamp above the reflective plate and at least one optical film, with the reflective plate composed of a bottom and two side walls extending from opposite two sides of the bottom, with top of two sides having at least a first locking part. The vertical back light module comprises two fixed edge frame with each frame having a second locking part corresponding to the first locking part locking through the fixed component to fix the optical film to the top of the side wall of the reflective plate. The vertical back light module uses two fixed edges to replace the bracket, fixes the optical film on the reflective plate to effectively reduce the making cost of the vertical back light and minimize its weight.

Description

technical field [0001] The invention relates to a backlight module used for a liquid crystal display device, in particular to a direct-type backlight module. Background technique [0002] Since the liquid crystal itself of the liquid crystal display panel does not have light-emitting characteristics, in order to achieve a good display effect, it is necessary to provide a side light source device for the liquid crystal display panel, such as a direct-lit backlight module, whose function is to supply sufficient brightness to the liquid crystal display panel. And evenly distributed surface light source. [0003] Depending on the position of the backlight source, the backlight module can generally be divided into two types: edge-lit and direct-lit. The light source of the edge-lit backlight module is arranged on the side of the backlight assembly, which has the advantages of lightness, thinness and low power consumption, and is widely used in small and medium-sized liquid cryst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357G02F1/1335
CPCG02F1/133604G02F1/133608G02F1/133308G02F2001/133317G02F1/133317
Inventor 章绍汉
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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