Directly-down back light module unit and LCD using the directly-down back light module unit

A liquid crystal display and backlight module technology, applied in static indicators, optics, instruments, etc., can solve problems such as uneven brightness, poor reliability of backlight modules, etc., to improve uniformity, improve display quality, and good reliability degree of effect

Inactive Publication Date: 2009-02-04
INNOLUX CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a direct type backlight module to

Method used

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  • Directly-down back light module unit and LCD using the directly-down back light module unit
  • Directly-down back light module unit and LCD using the directly-down back light module unit
  • Directly-down back light module unit and LCD using the directly-down back light module unit

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0061] figure 2 It is a schematic cross-sectional view of a direct type backlight module according to the first embodiment of the present invention. Please refer to figure 2 , The direct type backlight module 200 of the present invention includes a light box 210, a plurality of light sources 220, an optical film set 230, a shape reflector 240 and a plurality of positioning parts 210b. Wherein, the light box 210 has an opening 210a, and the light source 220 is disposed in the light box 210, and the optical film group 230 is disposed at the opening 210a.

[0062]Generally speaking, the optical film set 230 may include at least one of a diffuser film (Diffuser film), a Brightness enhanced film (BEF) and a prism sheet (Prism sheet). The light is scattered more evenly, and the brightness enhancement film can enhance the brightness displayed by the direct type backlight module 200 . In addition, the prism sheet can improve the correctness of the outgoing light direction. The d...

no. 2 example

[0071] This embodiment is very similar to the first embodiment, and the main difference between the two is that: the direct type backlight module of this embodiment uses a positioning member to fix the shaped reflective sheet instead of a positioning pin. Figure 5 is a schematic diagram of the direct type backlight module according to the second embodiment. Please refer to Figure 5 , The direct-lit backlight module 300 of the present invention includes a light box 210 , a plurality of light sources 220 , an optical film set 230 and a shaped reflector 240 . Wherein, the light box 211 has an opening 211 a, and the light source 220 is disposed in the light box 211 .

[0072] In addition, the optical film set 230 is disposed at the opening 211 a, and the shaped reflective sheet 240 is disposed between the light source 220 and the bottom of the light box 211 . The above-mentioned shaped reflective sheet 240 has a plurality of reflective slopes 240a, and the light source 220 is ...

no. 3 example

[0074] FIG. 6 is a schematic diagram of a liquid crystal display according to a third embodiment of the present invention. Please refer to FIG. 6 , the liquid crystal display 500 of the present invention includes the above-mentioned direct type backlight module 200 and a liquid crystal display panel 400 . Wherein, the structure of the direct-type backlight module 200 has been clearly disclosed in the first embodiment, and the liquid crystal display panel 400 is disposed beside the direct-type backlight module 200 corresponding to the opening 210 a of the light box 210 .

[0075] Please refer to Figure 7 , the liquid crystal display panel 400 of the present invention can also be combined with the direct type backlight module 300 to form a liquid crystal display 600 . Wherein, the structure of the backlight module 300 has been clearly disclosed in the second embodiment, and the liquid crystal display panel 400 is disposed beside the direct-type backlight module 300 correspondi...

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Abstract

The invention discloses a direct type back light module and an LCD which applies the direct type back light module. The direct type back light module includes a lamphouse, an optical membrane set, a plurality of light sources, a shaping reflector plate and a plurality of locating parts; wherein, the lamphouse is provided with a cut; while the optical membrane set is arranged between the light sources and the bottom part of the lamphouse. The shaping reflector plate is provided with a plurality of reflection inclines; besides, the light sources are respectively arranged between two neighboring reflection inclines. The locating parts are arranged on the bottom part of the lamphouse so as to independently locate the reflection inclines. The shaping reflector plate can reflect the beam emitting to the bottom part of the lamphouse, thereby being capable of further improving the uniformity of the beam provided by the direct type back light module and having better reliability. The display quality of the LCD can be improved.

Description

technical field [0001] The present invention relates to a light-emitting element and a display device, and in particular to a direct-type backlight module and a liquid crystal display using the direct-type backlight module. Background technique [0002] In a general liquid crystal display, it usually includes a component with a color display function, such as a liquid crystal display panel. Since the liquid crystal display panel does not have the function of emitting light, a backlight module must be arranged under the liquid crystal display panel. To provide a light source so that the liquid crystal display panel can achieve the purpose of display. [0003] figure 1 It is a schematic cross-sectional view of an existing backlight module. Please refer to figure 1 , the existing backlight module 100 is composed of a light box 110 , a plurality of light sources 120 , a diffuser 130 and a reflector 140 . Wherein, the light source 120 is disposed in the light box 110 , and th...

Claims

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Application Information

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IPC IPC(8): F21V13/04F21V7/04F21V17/10G02F1/13357G02F1/133G02F1/1335
Inventor 陈炜森
Owner INNOLUX CORP
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