发明名称 Personal digital assistant display illumination method and system
摘要 The present invention system and method facilitates efficient and relatively even distribution of illumination throughout a display screen. The system and method also facilitates clearer presentation of images, size reductions and conservation of limited power resources in handheld computers. In one embodiment of the present invention, a display illumination distribution system includes a light pipe, a lens, a wave-guide array and a light source. The light sources provides light waves that are directed along the wave guide array to the lens which directs the light waves into the light pipe. The light pipe conveys the light to the display and provides illumination. The routing of light through the wave-guide array confines the light waves to a wave guide and reduces the number of light waves that miss the light pipe.
申请公布号 US6718115(B1) 申请公布日期 2004.04.06
申请号 US20000675909 申请日期 2000.09.29
申请人 PALMONE, INC. 发明人 GETTEMY SHAWN;PETHE RAJIV
分类号 F21V8/00;G02B6/00;G02F1/13357;G06F3/033;G06F3/042;(IPC1-7):G09F13/00 主分类号 F21V8/00
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