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公开(公告)号:US20120081412A1
公开(公告)日:2012-04-05
申请号:US13187826
申请日:2011-07-21
申请人: Heetae KIM , Hyeonyong JANG , Byungchoon YANG , Dongkwon KIM , Young-keun LEE , Ho-young KIM
发明人: Heetae KIM , Hyeonyong JANG , Byungchoon YANG , Dongkwon KIM , Young-keun LEE , Ho-young KIM
IPC分类号: G09G5/10
CPC分类号: G06F3/0421 , G06F3/0412 , G09G3/3406 , G09G2320/045 , G09G2320/0633 , G09G2360/145
摘要: A display apparatus includes a display panel, a backlight unit, a backlight control circuit, sensors, a read-out circuit and a sensor auxiliary circuit. The display panel includes pixels and displays an image. The backlight unit includes a first light source which emits a first light in a infrared light range. The backlight control circuit controls a brightness of the first light source. The sensors sense an external signal and outputs first sensing signals. The read-out circuit outputs the first sensing signals as second sensing signals. The sensor auxiliary circuit compares a maximum value and a minimum value of the second sensing signals and provides a brightness control signal to the backlight control circuit based on the compared difference to control the brightness of the first light source.
摘要翻译: 显示装置包括显示面板,背光单元,背光控制电路,传感器,读出电路和传感器辅助电路。 显示面板包括像素并显示图像。 背光单元包括发射红外光范围的第一光的第一光源。 背光控制电路控制第一光源的亮度。 传感器感测外部信号并输出第一感测信号。 读出电路输出第一感测信号作为第二感测信号。 所述传感器辅助电路比较所述第二检测信号的最大值和最小值,并且基于所比较的差值向所述背光控制电路提供亮度控制信号,以控制所述第一光源的亮度。
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公开(公告)号:US20110175859A1
公开(公告)日:2011-07-21
申请号:US12959204
申请日:2010-12-02
申请人: Hyeonyong JANG , Ho-young Kim , Hyung-Ku Kang , Hak-Mo Choi
发明人: Hyeonyong JANG , Ho-young Kim , Hyung-Ku Kang , Hak-Mo Choi
CPC分类号: G09G3/3406 , G09G3/3611 , G09G2310/0237 , G09G2310/08 , G09G2320/0261 , G09G2320/062
摘要: An impulsively driven liquid crystal display includes a display panel displaying an image in response to a gate signal and a data signal, a panel driving circuit providing the gate signal and the data signal to the display panel using an image signal and a control signal, a backlight unit including a plurality of light sources that blink at once to provide a light to the display panel, and a backlight control circuit. The backlight control circuit automatically detects an existence of text information from a received image signal, and if the text is detected to be present, adjusts the blinking timing of the light sources to correspond with the area on the display panel where the text will be displayed, the adjustment being a function of a liquid crystal response delay time of liquid crystals used in the display panel.
摘要翻译: 脉冲驱动液晶显示器包括响应于门信号和数据信号显示图像的显示面板,使用图像信号和控制信号向显示面板提供门信号和数据信号的面板驱动电路, 包括立即闪烁以向显示面板提供光的多个光源的背光单元和背光控制电路。 背光控制电路根据接收到的图像信号自动检测文本信息的存在,并且如果检测到文本存在,则调整光源的闪烁定时以对准显示面板上显示文本的区域 ,调整是显示面板中使用的液晶的液晶响应延迟时间的函数。
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公开(公告)号:US20100315408A1
公开(公告)日:2010-12-16
申请号:US12721728
申请日:2010-03-11
申请人: Hyung-Ku KANG , Ho-young KIM , Hak-Mo CHOI , Hyeonyong JANG
发明人: Hyung-Ku KANG , Ho-young KIM , Hak-Mo CHOI , Hyeonyong JANG
CPC分类号: G09G3/342 , G09G3/3648 , G09G2310/024 , G09G2320/0261 , G09G2320/064
摘要: A liquid crystal display includes a liquid crystal display panel which displays an image in response to a gate signal and a data signal, a panel driving circuit which provides the gate signal and the data signal to the liquid crystal display panel in response to a control signal, a backlight unit including n light generating blocks which provide light to the liquid crystal display panel, and a backlight control unit which turns each of the n light generating blocks on and off i times during one frame period. Each of the n light generating blocks has a different duty ratio for each of i turn-on periods when the n light generating blocks are turned on in the one frame period, and ‘n’ and ‘i’ are integers greater than or equal to two (2).
摘要翻译: 液晶显示器包括响应于门信号和数据信号显示图像的液晶显示面板,响应于控制信号向液晶显示面板提供门信号和数据信号的面板驱动电路 包括向液晶显示面板提供光的n个发光块的背光单元以及在一个帧周期内使n个光产生块中的每一个接通和关闭的背光控制单元。 n个光产生块中的每一个对于在一个帧周期中导通n个光产生块的i个导通周期中的每一个具有不同的占空比,'n'和'i'是大于或等于 两(2)。
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