US Patent 7139046 Light guide device, electro-optical device, and electronic apparatus

Patent 7139046 was granted and assigned to Seiko Epson on November, 2006 by the United States Patent and Trademark Office.

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Patent Inventor Names

Yukiyoshi Katahira0

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Patent abstract

A light guide plate 122 is shaped like a wedge whose thickness gradually decreases from the left end in the figure to the right end, and a light guide plate 142 is shaped like a wedge whose thickness gradually decreases from the right end in the figure to the left end. Since the wedges of the light guide plates 122 and 142 are arranged in a staggered manner, the thickness of the entire liquid crystal display device 100 can be reduced.

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Official Website

https://pdfpiw.uspto.gov/.piw?Docid=07139046

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