Prism sheet and liquid crystal display device using the same

Details Prism sheet and liquid crystal display device using the same Prism sheet and liquid crystal display device using the same

2007-12-17

2010-12-07

Han, Jason M (Department: 2875)

Illumination

Display backlight

Lcd backlight

C362S620000, C362S626000

Reexamination Certificate

active

07845811

ABSTRACT:
An exemplary prism sheet (20) includes a light input surface (201), a light output surface (202) opposite to the light input surface, and a plurality of micro-depressions (205). The plurality of micro-depressions are defined in the light output surface and arranged in a skewed matrix. Each micro-depression has four side surfaces connected to each other, and a transverse width of each side surface decreases along a direction away from the light output surface and close to the light input surface. The present invention also provides a liquid crystal display device (200) using the above-described prism sheet.

REFERENCES:
patent: 6752505 (2004-06-01), Parker et al.
patent: 2006/0239029 (2006-10-01), Yu
patent: 2006/0256582 (2006-11-01), Chuang
patent: 1716027 (2006-01-01), None
patent: WO2005003851 (2005-01-01), None

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