发明名称 Liquid crystal display device for camera
摘要 A liquid crystal display device for a camera includes a display member having liquid crystal material for providing a display of photographic information, and a focusing glass for forming an image of an object which is to be photographed. A mask is arranged to face the display member and the focusing glass, the mask including a first transparent part which faces a display part of the display member, and a second transparent part which faces the object image formed on the focusing glass. A light shading part is provided between the first and second transparent parts of the mask to shade an end part of the display member from light. The mask enables view finder optics provided in the camera to display a rectangular view field having straight sides to the camera user. This is accomplished by forming boundary lines between the first and second transparent parts and the light shading part of the mask, wherein each boundary line substantially forms an arc having a center located on a straight line which is perpendicular to one of a long and short side of the view field, and which line passes through the center of the view field. The arcuate boundary lines overcome distortion produced by the view finder optics so that they are visually recognized as being straight.
申请公布号 US4452522(A) 申请公布日期 1984.06.05
申请号 US19810327617 申请日期 1981.12.04
申请人 CANON KABUSHIKI KAISHA 发明人 MURAKAMI, HIROYASU;UCHIYAMA, TAKASHI;SUZUKI, RYOICHI;SAKAI, SHINJI;KAWAMURA, MASAHARU;MOMIYAMA, KIKUO
分类号 G02F1/13;G02F1/1335;G03B17/20;(IPC1-7):G03B17/18;G03B13/02 主分类号 G02F1/13
代理机构 代理人
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