Backlight module and display device

A technology for a backlight module and a display device, which is applied to lighting devices, fixed lighting devices, and components of lighting devices, etc., can solve the problems of less dimming areas of backlight modules, easy mutual interference and influence of light, and impact of regional dimming effects. , to ensure the number of areas, reduce the use cost and energy consumption, and reduce the effect of light interference
CN101900280AInactive Publication Date: 2010-12-01TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
Publication Date
2010-12-01
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a backlight module and a display device. The display device comprises the backlight module and a play panel, wherein the backlight module comprises a plurality of light sources, a plurality of light guide units and at least one reflecting layer, wherein the light guide units corresponding to the light sources are arranged at one sides of the corresponding light sources; the reflecting layer is formed between any two light sources, and the partial reflecting layer extends between two light guide units corresponding to the two light sources. The invention can ensure subarea dimming area quantity and improve light interference among different light-emitting areas.
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Description

【Technical field】

[0001] The invention relates to a backlight module and a display device, in particular to a backlight module and a display device capable of zone dimming. 【Background technique】

[0002] Liquid Crystal Displays (LCDs) have been widely used in various electronic products. Most of the LCDs are backlight LCDs, which are composed of a liquid crystal display panel and a backlight module. The backlight module can be divided into side-light type and direct-light type according to the incident position of the light source, so as to provide backlight to the liquid crystal display panel.

[0003] At present, the backlight module of the liquid crystal display can be provided with a plurality of light-emitting areas, and different light-emitting brightnesses can be adjusted in different light-emitting areas, that is, local dimming can be performed. In order to perform zone dimming, generally, the backlight module arranges light-emitting diode (LED) crystals directly b...

Claims

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