Liquid crystal display device

Details Liquid crystal display device Liquid crystal display device

2006-12-26

2006-12-26

Nguyen, Dung T. (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Particular illumination

C349S064000, C345S084000, C362S333000, C362S336000, C362S337000

Reexamination Certificate

active

07154572

ABSTRACT:
An LCD device has scratch-resistant property without using a protection sheet and can provide enhanced brightness. The LCD device includes a light path regulating member. The member includes a first prism sheet having first prisms of which apex has a round shape. The first prism sheet concentrates light supplied from a lamp to output the concentrated light. An anti-glare polarizing plate uniformly polarizes polarized planes of the concentrated light and provides the polarized light to the lower substrate. The anti-glare polarizing plate is arranged below the lower substrate of an LCD panel, and an uppermost prism sheet of optical sheets is non-matte-treated and has round-treated apexes. In spite of the absence of the protection sheet, the scratch-resistant property of the uppermost prism sheet and the brightness of the LCD panel may be enhanced.

REFERENCES:
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patent: 5783299 (1998-07-01), Miyashita et al.
patent: 6222689 (2001-04-01), Higuchi et al.
patent: 6339501 (2002-01-01), Kameyama et al.
patent: 2003/0142249 (2003-07-01), Fujimoto
patent: 2003/0142250 (2003-07-01), Kawahara et al.
patent: 10096922 (1998-04-01), None

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