发明名称 Liquid crystal display device with a backlight unit having a diffusion plate
摘要 A liquid crystal display device having a direct backlight which uses a high-bright light source achieves both of a high efficiency and thin uniformity. In a liquid crystal display device which includes a liquid crystal panel, and a backlight unit which is arranged on a side of the liquid crystal panel opposite to a display screen of the liquid crystal panel, the backlight unit includes a housing, a plurality of light sources arranged in the inside of the housing, and a diffusion plate which is arranged between the plurality of light sources and the liquid crystal panel, the diffusion plate includes a plurality of light blocking regions at positions corresponding to the plurality of respective light sources, and the light blocking region at a center portion of the housing and the light blocking region at an edge portion of the housing exhibits transmissivities different from each other.
申请公布号 US7705930(B2) 申请公布日期 2010.04.27
申请号 US20070819906 申请日期 2007.06.29
申请人 HITACHI DISPLAYS, LTD.;IPS ALPHA TECHNOLOGY, LTD. 发明人 IMAJO YOSHIHIRO;SEKIGUCHI YOSHIFUMI;TANIGUCHI HITOSHI;HIYAMA IKUO
分类号 G09F13/04;G02F1/1335 主分类号 G09F13/04
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