Flat panel display having a brightness enhancement diffuser...

Details Flat panel display having a brightness enhancement diffuser... Flat panel display having a brightness enhancement diffuser...

2005-01-20

2008-10-21

Schechter, Andrew (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Particular illumination

C349S062000

Reexamination Certificate

active

07440045

ABSTRACT:
A flat panel display including a backlight module, a liquid crystal display panel, and a brightness enhancement diffuser plate (BEDP) is provided. The liquid crystal display panel is disposed on the backlight module, and the BEDP is disposed between the backlight module and the liquid crystal display panel. Furthermore, the BEDP includes a first and a second diffusion layers embedded to each other, wherein the first diffusion layer is disposed near the liquid crystal display panel, the second diffusion layer is disposed near the backlight module, and the first and the second diffusion layers have different refractive indexes, transmittances and haze values, so that optical performance of the flat panel display is optimized.

REFERENCES:
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patent: 2004/0032725 (2004-02-01), Hsieh et al.
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patent: 2004/0114065 (2004-06-01), Yu et al.
patent: 2004/0114372 (2004-06-01), Han et al.
patent: 2005/0206805 (2005-09-01), Lee et al.
patent: 2006/0139749 (2006-06-01), Watanabe et al.

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