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公开(公告)号:US09900569B2
公开(公告)日:2018-02-20
申请号:US15322980
申请日:2014-07-04
申请人: Hitachi Maxell, Ltd.
发明人: Eriko Nagata , Shinji Onodera , Satomi Morishita , Naoya Oka , Masaaki Iwanaga
CPC分类号: H04N9/3191 , G03B21/2026 , G03B21/2053 , G06F3/0483 , G06T5/00 , G09G3/002 , G09G2320/0233 , G09G2320/045 , G09G2320/0626 , G09G2320/066 , G09G2320/0673 , G09G2320/08 , G09G2354/00 , H04N5/74 , H04N9/3155 , H04N9/3182 , H04N9/44 , H05B41/2928 , H05B41/3928
摘要: This projection-type image display device is provided with: a lamp drive unit that drives a lamp; a lamp voltage detection unit that detects a lamp interelectrode voltage (hereinafter referred to as a lamp voltage); an image correction unit that corrects image qualities of image signals to be supplied to an image display element; and a control unit that controls a correction quantity of the image correction unit on the basis of the lamp voltage detected by means of the lamp voltage detection unit. Consequently, deterioration of visibility of a projection image can be suitably suppressed.