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    • 45. 发明授权
    • Liquid crystal display, driving apparatus, digital-analog converter and output voltage amplifier thereof
    • 液晶显示器,驱动装置,数模转换器及其输出电压放大器
    • US08294657B2
    • 2012-10-23
    • US12452341
    • 2008-06-24
    • Byung-Doo KimHee-Jong ParkJu-Young NoSang-Hoon Lee
    • Byung-Doo KimHee-Jong ParkJu-Young NoSang-Hoon Lee
    • G09G3/36
    • G09G3/3688G09G3/3696G09G2310/027G09G2310/0291
    • The present invention relates to a liquid crystal display, a driving device thereof, a digital to analog converter, and an output voltage amplifying circuit. The present invention provides a liquid crystal display driving device including a reference gray voltage generator for generating a plurality of reference gray voltages, and a data driver for generating a plurality of gray voltages based on the plurality of reference gray voltages and applying a data signal that is generated by selecting a gray voltage corresponding to m-bit video signals applied from the outside from among the plurality of gray voltages to the pixel The data driver includes: a voltage generator for selecting a first gray voltage and a second gray voltage corresponding to bit values of (m−k) bits from among the video signal from among the plurality of gray voltages, and outputting the first and second gray voltages; an output voltage generator for outputting 2k voltages determined as one of the first and second gray voltages corresponding to bit values of k bits from among the video signal; and an output voltage amplifier for generating the data signal by combining the 2k voltages, and applying the data signal to a plurality of pixels. According to the present invention, a liquid crystal display having a small cost and area can be realized.
    • 本发明涉及液晶显示器,其驱动装置,数模转换器和输出电压放大电路。 本发明提供一种液晶显示驱动装置,包括用于产生多个参考灰度电压的参考灰度电压发生器和用于基于多个参考灰度电压产生多个灰度电压的数据驱动器,并且施加数据信号, 通过选择与多个灰度电压之间从外部施加的m位视频信号相对应的像素产生灰度电压。数据驱动器包括:电压发生器,用于选择对应于位的第一灰色电压和第二灰色电压 从多个灰度电压的视频信号中的(m-k)比特的值,并输出第一和第二灰度电压; 输出电压发生器,用于输出与视频信号中的k位的位值对应的第一和第二灰度电压之一确定的2k电压; 以及输出电压放大器,用于通过组合2k电压来生成数据信号,并将数据信号施加到多个像素。 根据本发明,可以实现具有小成本和面积的液晶显示器。
    • 48. 发明授权
    • Battery cell voltage measuring apparatus and method
    • 电池电压测量装置及方法
    • US08129997B2
    • 2012-03-06
    • US12830737
    • 2010-07-06
    • Jin-Seok HeoDal-Hoon LeeJee-Ho KimSang-Hoon LeeChang-Eon Jin
    • Jin-Seok HeoDal-Hoon LeeJee-Ho KimSang-Hoon LeeChang-Eon Jin
    • G01N27/416
    • G01R31/3658G01R19/0084G01R31/362
    • Disclosed is a battery cell voltage measuring apparatus and method. The battery cell voltage measuring apparatus comprises a plurality of floating capacitors provided corresponding to a plurality of cells contained in a battery pack; a plurality of switching units provided corresponding to each cell of the battery pack and switchable into a charge mode or a measurement mode; and a cell voltage detector for measuring the voltage of each cell by switching each switching unit into a charge mode to charge the voltage of each cell on each corresponding floating capacitor and time-differentially switching each switching unit into a measurement mode to apply the cell voltage charged on the floating capacitor between a reference potential and a common cell voltage measuring line.
    • 公开了一种电池单元电压测量装置和方法。 电池单元电压测量装置包括与容纳在电池组中的多个电池对应地设置的多个浮动电容器; 多个开关单元,其对应于电池组的每个单元设置并可切换到充电模式或测量模式; 以及电池电压检测器,用于通过将每个开关单元切换到充电模式来测量每个电池的电压,以对每个相应的浮动电容器上的每个电池单元的电压进行充电,并将每个开关单元时差地切换成测量模式以施加电池电压 在参考电位和公共电池电压测量线之间的浮动电容器上充电。