LCD and back light module

A liquid crystal display and backlight module technology, applied in the direction of instruments, optics, nonlinear optics, etc., can solve the problems of uneven brightness of lamp tubes, degradation of picture quality, uneven brightness of direct-type backlight modules, etc.
CN1635409AInactive Publication Date: 2005-07-06BENQ CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BENQ CORP
Publication Date
2005-07-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

This invention relates to a LCD display and its aphototropism module, which comprises the circuit board, first light source, first signal adjusting device and second light source, wherein the first signal adjusting device is located on the circuit board and connected to the first light source. The first signal adjusting device adjusts the first light source brightness to make the first and second light sources generate same brightness to get a good even brightness of the LCD panel.
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Description

【Technical field】

[0001] The present invention relates to a liquid crystal display and its backlight module, and in particular to a liquid crystal display and its backlight module capable of adjusting the brightness of at least one of a plurality of light sources. 【Background technique】

[0002] A traditional Liquid Crystal Display (LCD) uses a backlight module to provide the light required by the LCD panel. The light source of the backlight module must have the characteristics of high brightness and long life. The backlight module is mainly composed of a light source, a light guide panel (Light Guide Panel), a diffuser panel (Diffuser), and a plastic frame. The light source is fixed on the plastic frame, and after the light emitted by the light source is processed by the light guide plate and the diffusion sheet, it will generate light with uniform brightness and enter the liquid crystal display panel. Among them, currently commonly used light sources include cold cathode...

Claims

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