Back light module unit and LCD

A backlight module and liquid crystal panel technology, applied in static indicators, light guides, optics, etc., can solve the problem of low light uniformity of the backlight module, and achieve the effect of uniform light output

Inactive Publication Date: 2008-06-25
INNOCOM TECH (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of low light uniformity of the prior art backlight module, it is necessary to provide a backlight module with high light uniformity

Method used

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  • Back light module unit and LCD
  • Back light module unit and LCD
  • Back light module unit and LCD

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] see figure 2 , is a three-dimensional exploded schematic view of the first embodiment of the liquid crystal display of the present invention. The liquid crystal display 2 includes a backlight module 20 and a liquid crystal panel 30 stacked with the backlight module 20 .

[0019] The liquid crystal panel 30 includes a display area 31 for displaying images.

[0020] The backlight module 20 includes a light guide plate 21 and a light source 22 . The light source 22 is a light emitting diode. The light guide plate 21 guides the transmission direction of the light beam emitted by the light source 22 , and converts it into planar light to exit from the light guide plate 21 .

[0021] The light guide plate 21 includes a main body 25 and an extension portion 26 extending from one end of the main body 25 in a direction away from the main body 25 . The body 25 includes a light-emitting surface 251, a bottom surface 253 opposite to the light-emitting surface 251, a first side...

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PUM

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Abstract

The present invention relates to a backlight module and a LCD. The backlight module comprises a light guide plate. The light guide plate comprises a main body and an extension part formed by extending one end of the main body in the direction far away from the main body. The main body comprises a first side face parallel to the extension direction of the extension part; the extension part has a convex lug extend outwards from a horizontal plane where the first side face of the main body is arranged; the convex lug comprises a light entrance plane which is positioned at the adjacency part of the extension part and the main body; the extension part comprises at least one side face on which a reflection structure is arranged. The main body also comprises at least one light emitting diode arranged on one side of the light entrance plane, wherein, emergent light beams of the light emitting diode are radiated into the extension part from the light entrance plane, and are reflected by the side face provided with the reflection structure to form divergent light beams and enter the main body. The backlight module and the LCD are uniform in brightness.

Description

technical field [0001] The invention relates to a backlight module and a liquid crystal display using the backlight module. Background technique [0002] Since the liquid crystal panel is a non-self-luminous display device, in order to achieve the display purpose, it is necessary to provide a light source device for the liquid crystal panel to realize its display function, such as a backlight module, whose function is to provide the liquid crystal panel with sufficient brightness and uniform distribution. flat light. [0003] The conventional backlight module includes a light source and a light guide plate. The light source is arranged relative to the light incident surface of the light guide plate. The light guide plate guides the transmission direction of the light beam emitted from the light source, and converts the line light source or point light source into a surface light source to emit. A plurality of dots are distributed on the bottom surface of the light guide pla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1335G02F1/1333G02F1/133
CPCG02B6/0018G02B6/0031
Inventor 麻孝平
Owner INNOCOM TECH (SHENZHEN) CO LTD
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