Optical sheet and display device having the same

Details Optical sheet and display device having the same Optical sheet and display device having the same

2011-08-02

2011-08-02

Connelly Cushwa, Michelle R (Department: 2874)

Liquid crystal cells, elements and systems

Particular structure

Particular illumination

C359S599000, C362S327000, C362S606000

Reexamination Certificate

active

07990490

ABSTRACT:
An optical sheet includes a base layer, a light-condensing layer and a plurality of light-reflecting portions. The base layer includes a first surface and a second surface. The light-condensing layer includes a plurality of light-condensing portions with a first pitch. The light-condensing portions are formed along a first direction of the second surface. The light-reflecting portions are formed in the first surface to be spaced apart from each other along the -first direction in correspondence with a plurality of grooves, each groove formed between two light-condensing portions. An interval distance between a center of the light-condensing portion and an edge of the light-reflecting portion increases when moving toward the edge of the first surface from a center of the first surface along the first direction. Therefore, the number of the optical sheets used for the display device may be reduced.

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Machine Translation of claims, description and abstract for JP2000-284268A, Oct. 2000.
EP Search Report, EP 08021486.9-2205, Mar. 29, 2010, 9 pages.
EP Search Report, EP 08021983.5-2205, Mar. 29, 2010, 9 pages.

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