Back light module and liquid crystal display

A technology of backlight module and light beam, which is applied in the direction of static indicators, semiconductor devices of light-emitting elements, instruments, etc., can solve the remaining 45% of the problems, and achieve the effect of improving the overall brightness and increasing the utilization rate of photons
CN101476684AActive Publication Date: 2009-07-08AU OPTRONICS CORP
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
AU OPTRONICS CORP
Publication Date
2009-07-08

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Abstract

The invention relates to a backlight module and a liquid crystal display comprising the same. The backlight module is provided with a reflecting base, and a fluorescent material layer is arranged on the reflecting base; and a plurality of blue light emitting dioxide components are arranged above the reflecting base and the fluorescent material layer and emit first light beams. An optical membrane is arranged above the reflecting base, the fluorescent material layer and the blue light emitting dioxide components, is used for P polarization light of the first light beams to transmit, and reflects S polarization light of the first light beams to the fluorescent layer so as to excite the fluorescent layer to generate second light beams with different wave length from that of the first light beams. The second light beams are reflected to the optical membrane through the reflecting base, then can transmit the optical membrane, and are mixed with the first light beams to generate white light.
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Description

【Technical field】

[0001] The invention relates to a backlight module and a liquid crystal display, in particular to a backlight module and a liquid crystal display capable of improving photon utilization. 【Background technique】

[0002] A liquid crystal display (Liquid Crystal Display; LCD) is one of the most widely used display technologies at present. The components that make up the liquid crystal display include many optical components, such as polarizers and color filters. Generally speaking, the polarizing plate will cause about 50% of the incident light loss, and the color filter will cause about 60% of the incident light loss. Therefore, when the light passes through these components, only about 20% of the incident light remains, which will cause a loss of the brightness of the backlight module or the liquid crystal display.

[0003] Due to rising awareness of environmental protection, white light-emitting diodes (Light-Emitting Diodes; LEDs) have the advantages of ...

Claims

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