Optical sheet and LCD apparatus using the same

Details Optical sheet and LCD apparatus using the same Optical sheet and LCD apparatus using the same

2008-03-25

2008-03-25

Nelms, David (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Lens or prism separate from projection system

C349S062000

Reexamination Certificate

active

10792414

ABSTRACT:
The present invention relates to an optical sheet and an LCD apparatus using the same. An LCD apparatus according to the present invention comprises an LCD panel to display a picture thereon; a lamp unit emitting light; a light guide plate to guide the light from the lamp unit toward the LCD panel evenly; an optical sheet provided between the LCD panel and the light guide plate and including a condensing layer condensing the light from the light guide plate on the LCD panel, and a reflective polarizing layer attached to the surface of the condensing layer facing the LCD panel and selectively transmitting and reflecting the light condensed by the condensing layer. With this configuration, the present invention provides an optical sheet and an LCD apparatus using the same, in which a bright-line is decreased, brightness are enhanced, and the optical sheet is prevented from shrinking.

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Japanese Office action, May 22, 2007. All references cited in the Office action and not previously submitted are listed above.
Taiwanese Office Action; 93105693; Apr. 14, 2007.
All the references cited in the Foreign Office action, and not previously submitted, are listed above.

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