发明名称 METHOD AND DEVICE FOR CONTROLLING LUMINANCE OF BACKLIGHT
摘要 PROBLEM TO BE SOLVED: To prevent flickering of a screen in remote control operation. SOLUTION: A backlight is controlled so as to fix a pulse width of a PWM signal to a last value for a fixed time period after a microcomputer 13 detects an input of a remote control signal. Thereby, even when the remote control signal is made incident on a photosensor 17 to detect ambient illuminance, a detected illuminance value based on the incident remote control signal is neglected for a fixed time period and backlight luminance just before the incidence of the remote control signal is maintained. COPYRIGHT: (C)2004,JPO
申请公布号 JP2004077585(A) 申请公布日期 2004.03.11
申请号 JP20020234520 申请日期 2002.08.12
申请人 ALPINE ELECTRONICS INC 发明人 HARA SATOSHI;NAKANO SHUZO;SUGANAMI TOMOKO
分类号 G02F1/133;G09G3/20;G09G3/34;G09G3/36;(IPC1-7):G02F1/133 主分类号 G02F1/133
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