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21.
公开(公告)号:US07688303B2
公开(公告)日:2010-03-30
申请号:US11594190
申请日:2006-11-08
申请人: Yoshikazu Yokota , Kunihiko Tani , Gorou Sakamaki , Katsuhiko Yamamoto , Takashi Yoneoka , Kazuhisa Higuchi , Kimihiko Sugiyama
发明人: Yoshikazu Yokota , Kunihiko Tani , Gorou Sakamaki , Katsuhiko Yamamoto , Takashi Yoneoka , Kazuhisa Higuchi , Kimihiko Sugiyama
IPC分类号: E09G3/20
CPC分类号: G09G3/36 , G09G3/2096 , G09G3/3611 , G09G3/3622 , G09G3/3644 , G09G3/3674 , G09G3/3681 , G09G3/3696 , G09G5/22 , G09G5/222 , G09G2300/0426 , G09G2310/0213 , G09G2310/0232 , G09G2310/0278 , G09G2310/04 , G09G2320/066 , G09G2320/08 , G09G2330/02 , G09G2330/021 , G09G2330/022 , G09G2330/023 , G09G2340/0414 , G09G2340/0485
摘要: In conventional liquid crystal display controllers such as for portable telephone sets, the display is reduced in the stand-by state but the liquid crystal display duty is not changed, i.e., even the common electrodes of the rows that are not producing display are scanned, and the consumption of electric power is not decreased to a sufficient degree in the stand-by state. A liquid crystal display controller (2) includes a drive duty selection register (34) capable of being rewritten by a microprocessor (1), and a drive bias selection register (32). When the display is changed from the whole display on a liquid crystal display panel (3) to a partial display on part of the rows only, the preset values of the drive duty selection register and of the drive bias selection register are changed, so that the display is selectively produced on a portion of the liquid crystal display panel at a low voltage with a low-duty drive.
摘要翻译: 在诸如便携式电话机的常规液晶显示控制器中,显示器在待机状态下降低,但是液晶显示器占空比不改变,即使扫描不产生显示器的行的公共电极, 并且在待机状态下电力消耗不能降低到足够的程度。 液晶显示控制器(2)包括能够由微处理器(1)重写的驱动占空比选择寄存器(34)和驱动偏置选择寄存器(32)。 当显示器从液晶显示面板(3)上的整个显示器改变为仅部分行的部分显示时,驱动占空比选择寄存器和驱动偏置选择寄存器的预设值改变,使得 在液晶显示面板的一部分以低负载驱动的低电压选择性地产生显示。