发明名称 Front plate and display device using same
摘要 Frusto-conical needle-shaped light guide paths are implanted on the surface of a display panel such that output light from display elements propagate through the needle-shaped light guide paths through total reflection, while external light repeats reflections multiple times on wedge-shaped surfaces of the light guide paths, and attenuates. A light absorbing film is coated on the surfaces of the needle-shaped light guide paths to increase a contrast ratio. Thus, a higher contrast can be accomplished in a bright room, and cross-talk between adjacent pixels is reduced. A reduction in contrast due to display light is also alleviated by employing longer implanted needle-shaped light guide paths, and bringing light incident surfaces of the needle-shaped light guide paths into close contact with the surface of the display panel.
申请公布号 US7301264(B2) 申请公布日期 2007.11.27
申请号 US20050048168 申请日期 2005.01.31
申请人 HITACHI, LTD. 发明人 OHSAWA MICHITAKA
分类号 G02B1/10;G02F1/1335;F21V8/00;G02B5/02;G02B27/00;G09F9/00;H01J61/40 主分类号 G02B1/10
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