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LCD and its back lighting module

A liquid crystal display and backlight module technology, applied in optics, instruments, light source fixing, etc., can solve problems such as high difficulty, damage to diffuser plates, and increased cost

Inactive Publication Date: 2005-03-02
INNOLUX CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned special treatment is very difficult, and if the operation is not done properly, the diffusion plate will be damaged, so the manufacturing cost will be relatively increased

Method used

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  • LCD and its back lighting module
  • LCD and its back lighting module
  • LCD and its back lighting module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] like figure 2 The liquid crystal display 2 includes a frame 21, the frame 21 includes a frame 211 and an opening 212 in the central area thereof, the opening 212 defines a display area 22, and the frame 21 can accommodate a backlight module disposed therein, The display area 22 formed by the openings 212 can display specific information of a liquid crystal panel; wherein the backlight module includes at least one substantially serpentine lamp tube 23, and each lamp tube 23 includes a plurality of substantially parallel straight tube portions 231, and the adjacent straight pipe portions 231 are connected by curved pipe portions 232. Preferably, the distances between the adjacent straight pipe portions 231 are approximately equal.

[0013] The present invention is characterized by the arrangement of each lamp tube 23 ; wherein each straight tube portion 231 is generally located in the display area 22 , and each curved tube portion 232 is located outside the display area ...

Embodiment 2

[0015] like image 3 As shown, a liquid crystal display 3 is similar to the liquid crystal display 2 in the first embodiment, and includes a display area 32 defined by a frame 31, and a backlight module including at least one lamp 33 provides the light source . Each lamp tube 33 includes two substantially parallel straight tube portions 33 1 and are connected to each other with a curved tube portion 332 to form a U-shape, wherein each straight tube portion 331 is located in the display area 32 , and each curved tube portion 332 is located in the display area 32 . Outside the display area 32. Preferably, the backlight module includes three lamps 33 of this type.

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Abstract

The LCD includes one frame and one back lighting module. The frame includes one side frame and central opening to define one display area. The back lighting module provides the LCD with light source via the display area, and includes at least one lamp tube set in the area defined by the side frame and the display area. The lamp tube includes one homogeneous lighting part inside the defined display area and one dense lighting part inside the side frame defined area. The present invention has raised lighting homogeneity in the display area.

Description

technical field [0001] The present invention mainly relates to the structure of a liquid crystal display, and in particular, the present invention relates to a backlight module for a liquid crystal display. Background technique [0002] Nowadays, liquid crystal displays have been widely used in personal computers, notebook computers and various communication devices. However, the liquid crystal itself does not emit light, so the liquid crystal display must be equipped with a backlight module to provide a light source. At present, there are various types of backlight modules used in liquid crystal displays in the industry, wherein the direct type backlight module generally includes at least one straight lamp tube arranged under a diffuser plate substantially parallel to each other. Compared with other types of backlight modules, it has the advantages of light weight, high luminosity and simple structure. [0003] The direct-type backlight module can be applied to a U-shaped...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21V19/00G02F1/1333
Inventor 范国书
Owner INNOLUX CORP