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Backlight module, reflector plate structure and LCD device

A technology of backlight modules and reflectors, applied in static indicators, optics, instruments, etc., can solve problems affecting the display quality of liquid crystal displays, affecting the quality of liquid crystal displays, etc.

Inactive Publication Date: 2011-04-20
INNOLUX CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, it has been found in practice that the backlight module with the mountain-shaped reflector structure 14 will cause an unexpected bright or dark pattern (mura), which will affect the display quality of the liquid crystal display.
[0006] Therefore, the technology of the conventional backlight module has the following deficiencies: the backlight module is provided with a mountain-shaped reflector structure to separate the light sources at different positions to avoid mutual interference, but because the setting of the mountain-shaped reflector structure 14 will be unexpected Produce bright and dark lines, affecting the quality of the LCD display

Method used

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  • Backlight module, reflector plate structure and LCD device
  • Backlight module, reflector plate structure and LCD device
  • Backlight module, reflector plate structure and LCD device

Examples

Experimental program
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Embodiment Construction

[0055] see Figure 1A-1B . Such as Figure 1A As shown, when the height of a mountain-shaped reflector structure 14 is less than three quarters of the height between the bottom of a light box 10 and a diffuser plate 16, the light sources 12 adjacent to the mountain-shaped reflector structure 14 will all be The light rays 12a, 12b and 12c are emitted, wherein the light ray 12c will directly hit the light overlapping area directly above the reflective sheet structure 14, and the light ray 12b will be reflected at a large angle on the higher surface of the reflective sheet structure 14, so it is incident on the reflective sheet structure 14. The light overlapping area directly above the reflection sheet structure 14 . Therefore, part of the light is concentrated on the top of the mountain-shaped reflector structure 14 , and an unexpected mura 18 is formed on the diffuser 16 , resulting in deterioration of the display quality of the liquid crystal display. Such as Figure 1B As...

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Abstract

The invention provides a backlight module of a liquid crystal display device, comprising a lamp box, a plurality of light sources, a reflector plate structure and a diffusing panel, wherein, the reflector plate structure is arranged between the bottom of the lamp box and the plurality of light sources; the reflector plate structure comprises a plurality of protruding structures, a plurality of plane plate structures and a reflectivity adjusting pattern; various reflectivity adjusting patterns are applied on the surfaces of the protruding structures and the plane plate structures with the samenumber of the reflectivity adjusting patterns by the printing or processing applying ways; wherein, after the surface of the reflector plate structure is improved, the appropriate reflectivity can beadjusted, the bright rays and mura are improved and the display effect of the LCD is effectively improved.

Description

technical field [0001] The invention relates to a light source module, in particular to a backlight module which can provide a uniform backlight source and is applied in a liquid crystal display. Background technique [0002] The liquid crystal display is composed of a liquid crystal panel (liquid crystal panel) and a backlight module (backlight unit), wherein the liquid crystal display panel includes a color filter substrate (Color Filter, C / F), a thin film transistor array substrate (thin film transistor array) and The liquid crystal layer between the two substrates. Wherein the color filter substrate is provided with a common electrode (common electrode), and the thin film transistor array substrate is provided with a plurality of pixel electrodes (pixel electrodes), by the magnitude of the electric field between the plurality of pixel electrodes and the common electrode To control the rotation of liquid crystal molecules to determine the amount of light passing through....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1335G02B5/08G02F1/133G09F9/35
Inventor 许世民刘懿汉蓝文锦
Owner INNOLUX CORP
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