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Publication numberUST936004 I4
Publication typeGrant
Publication dateJul 1, 1975
Filing dateJul 1, 1974
Priority dateJul 1, 1974
Publication numberUS T936004 I4, US T936004I4, US-I4-T936004, UST936004 I4, UST936004I4
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Defensive publication
US T936004 I4
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Description  (OCR text may contain errors)

DEFENSWE PUBLlCATIGN UNITED STATES PATENT AND TRADEMARK OFFICE Published at the request of the applicant or owner in accordance with the Notice of Dec. 16, 1969, 869 O.G. 687. The abstracts of Defensive Publication applications are identified by distinctly numbered series and arearranged chronologically. The heading of each abstract indicates the number of pages of specification, including claims and sheets of drawings contained in the application as originally filed. The files of these applications are available to the public for inspection and reproduction may be purchased for 30 cents a sheet.

Defensive Publication applications have not been examined as to the merits of alleged invention. The Patent and rademurk Office makes no assertion as to the novelty of the disclosed subject matter.

PUDLiSHED JULY 1, 1975 1936.004 SOLlD STATE WATCH DISPLAY Alon E. Willis, 122 Berrian Road,

tamford, 01m. 06%2 Filed .luiy 1, 1974-, Ser. No. 484,481 lint. Cl. (394!) 19/30 US. Cl. 58-50 R 1 Sheet Drawing. 9 Pages Specification A solid state watch display comprises a display mounted to the sloping face of a solid state watch. The display includes a reflector mounted along the sloping face of the watch, a triangular prism with the hypotenuse of the triangle adjacent to the reflector, a polarizing filter adjaccnt to the vertical face of the prism and a liquid crystal celi between said polarizing filter and an outer polarizing filter. The light enters the prism through the upper horizontal face thereof, and is reflected outwardly through the vertical face of the prism. The light passes twice through polarizers in contrast to the four passes generally required by conventional front illuminated displays. Thus, there is considerably less loss of light with the subject display.

U.S. Classification368/242, 349/58, 349/62, 968/931
International ClassificationG02F1/13357, G04G9/00
Cooperative ClassificationG04G9/0035, G02F2001/133618, G02B6/0011
European ClassificationG04G9/00D1B