Liquid crystal backlight module

A backlight module and liquid crystal technology, applied in optics, light source, shading, etc., can solve problems such as small attachment area of ​​black and white double-sided tape and plastic frame, influence of display panel display effect, light leakage, etc.

Inactive Publication Date: 2014-02-19
合肥宝龙达光电技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The white side of the black and white double-sided tape is attached to the plastic frame. At present, mobile phone backlight modules usually adopt a narrow frame design. The attachment area between the black and white double-sided tape and the plastic frame is very small, which is easy to cause light leakage.
The plastic frame is white, which absorbs little of the leaked light, and the leaked light has a certain impact on the display effect of the liquid crystal display panel.

Method used

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Examples

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Embodiment Construction

[0018] refer to figure 2 and image 3 The liquid crystal backlight module of the present invention includes a plastic frame 1 and a black and white double-sided adhesive tape 2, the plastic frame 1 is a hollow frame structure, the plastic frame 1 includes a first frame 11 on the outside and a second frame 12 on the inside, the first frame 11 It is closely connected with the second frame 12 , the surface of the first frame 11 is black, and the surface of the second frame 12 is white. The first frame 1 is thicker than the second frame.

[0019] When manufacturing the plastic frame 1, a double-shot molding process can be used. The first shot molds the first frame 11, and the second shot molds the second frame. The material injected into the first shot is black PC plastic, and the material injected into the second shot is white. PC plastic, here the two-color molding of the plastic frame 1 does not limit the molding sequence of the first frame 11 and the second frame 12, for ex...

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Abstract

A liquid crystal backlight module comprises an adhesive frame (1) and a black and white double-sided adhesive (2); the adhesive frame (1) is of a hollow frame structure and comprises a first frame (11) which is arranged on the outer side and a second frame (12) which is arranged on the inner side; the surface of the first frame (11) is black; the surface of the second frame (12) is white; the black and white double-sided adhesive (2) is attached to the joint of the first frame (11) and the second frame (12). According to the liquid crystal backlight module, the adhesive frame is designed to be the black frame structure and the white frame structure, the outer side of the adhesive frame is provided with the first frame, the surface of the first frame is black, and accordingly the light transmitted from the black and white double-sided adhesive and the adhesive frame can be well absorbed and accordingly the display effect of the liquid crystal backlight module cannot be affected.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a liquid crystal backlight module. Background technique [0002] The backlight module is one of the key components of the liquid crystal display panel. The backlight module includes plastic frames, reflective film, black and white double-sided tape, light guide plates, LEDs and other components. Since the liquid crystal itself does not emit light, it needs to be added at the bottom of the liquid crystal display panel. LED light source, LED light source is usually a line light source, the function of the backlight module is to turn the line light source emitted by the LED light source into a flat light source with uniform brightness, so that the liquid crystal display panel presents a full color display effect. [0003] LED light sources are usually divided into side-emitting LEDs and bottom-emitting LEDs. The light emitted by side-emitting LEDs passes through the light guide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V1/02F21V17/10G02F1/13357
Inventor 刘国伟
Owner 合肥宝龙达光电技术有限公司
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