公开(公告)号：US08674976B2

公开(公告)日：2014-03-18

申请号：US13158520

申请日：2011-06-13

申请人： Jongwoo Kim ,  Yongchae Jung ,  Sunguk Byun ,  Jinkoo Kim

发明人： Jongwoo Kim ,  Yongchae Jung ,  Sunguk Byun ,  Jinkoo Kim

IPC分类号： G09G5/00

CPC分类号： G09G3/3648 ,  G09G3/3688 ,  G09G2330/021

摘要： A liquid crystal display includes a liquid crystal display panel including data lines, gate lines crossing the data lines, and liquid crystal cells arranged at crossings of the data lines and the gate lines in a matrix form, a data driving circuit supplying a data voltage to the data lines, and a power consumption reduction circuit, that calculates the number of black pixels, white pixels, or both included in an input image, decides whether or not the input image is a problem pattern increasing power consumption of the data driving circuit based on the calculation result, selectively activates a charge sharing function, which shorts between adjacent output channels of the data driving circuit during a predetermined period, and differently controls a polarity inversion period of the data voltage based on the decision result.

摘要翻译： 液晶显示器包括：液晶显示面板，包括数据线，与数据线交叉的栅极线，以矩阵形式布置在数据线和栅极线交叉处的液晶单元;数据驱动电路， 数据线和功耗降低电路，其计算输入图像中包括的黑色像素数量，白色像素或两者，判定输入图像是否是以数据驱动电路为基础的增加耗电量的问题图案 在计算结果中，选择性地激活电荷共享功能，其在预定时间段内在数据驱动电路的相邻输出通道之间短路，并且基于判定结果不同地控制数据电压的极性反转周期。