公开(公告)号：US08339347B2

公开(公告)日：2012-12-25

申请号：US12409681

申请日：2009-03-24

申请人： Hyeon-Seok Bae ,  Sang-Chul Lee ,  Kwang-Youl Lee

发明人： Hyeon-Seok Bae ,  Sang-Chul Lee ,  Kwang-Youl Lee

IPC分类号： G09G3/36

CPC分类号： G09G3/3696 ,  G09G2330/02

摘要： A liquid crystal display includes; a liquid crystal panel, and a DC-DC converter which receives an input voltage to generate an analog drive voltage and a gate-on voltage used to operate the liquid crystal panel, wherein the DC-DC converter includes a pulse width modulation circuit which modulates a pulse width of the analog drive voltage and the gate-on voltage, a boost converter which boosts the input voltage to output the analog drive voltage, and a charge pump which boosts one of the input voltage and the analog drive voltage to output the gate-on voltage, wherein when a high voltage stress test is performed, the DC-DC converter outputs the analog drive voltage boosted to a voltage level higher than a voltage level of the analog drive voltage during a normal operation, and outputs the gate-on voltage having a voltage level substantially equal to a voltage level of the gate-on voltage during the normal operation.

摘要翻译： 液晶显示器包括： 液晶面板和接收输入电压以产生用于操作液晶面板的模拟驱动电压和栅极导通电压的DC-DC转换器，其中DC-DC转换器包括调制脉冲宽度调制电路 模拟驱动电压和栅极导通电压的脉冲宽度，升压输入电压以输出模拟驱动电压的升压转换器，以及升压输入电压和模拟驱动电压之一以输出门极的电荷泵 - 其中当执行高压应力测试时，所述DC-DC转换器在正常操作期间将升压的模拟驱动电压输出到高于模拟驱动电压的电压电平的电压电平，并且输出门极导通 电压具有在正常操作期间基本上等于栅极导通电压的电压电平的电压电平。

公开(公告)号：US20100085348A1

公开(公告)日：2010-04-08

申请号：US12469421

申请日：2009-05-20

申请人： Hyeon-Seok Bae ,  Sang -Chul Lee ,  Kwang-Youl Lee ,  Hyun-Ho Lee

发明人： Hyeon-Seok Bae ,  Sang -Chul Lee ,  Kwang-Youl Lee ,  Hyun-Ho Lee

IPC分类号： G09G5/00 ,  G09G3/36

CPC分类号： G09G3/3677 ,  G09G3/3648 ,  G09G3/3696 ,  G09G2300/0426 ,  G09G2300/0443 ,  G09G2310/0205 ,  G09G2310/0251 ,  G09G2310/0267 ,  G09G2310/0281 ,  G09G2310/0286 ,  G09G2310/06 ,  G09G2320/0209 ,  G09G2320/0219 ,  G11C19/184

摘要： A display device and a method of driving the same are provided. The display device includes a display panel including a plurality of pixels defined in an area where a plurality of gate lines and data lines cross one another, a clock generator generating a gate clock signal using a clock generation control signal provided from a timing controller and a gate-on voltage, and a gate driver providing a gate signal to the gate lines in response to the gate clock signal. The gate signal includes a pre-charge period having a first gate-on level and a main-charge period having a second gate-on level that is higher than the first gate-on level.

摘要翻译： 提供一种显示装置及其驱动方法。 显示装置包括显示面板，其包括多个像素，所述多个像素限定在多个栅极线和数据线彼此交叉的区域中;时钟发生器，使用从时序控制器提供的时钟产生控制信号和 栅极导通电压，以及栅极驱动器，其响应于栅极时钟信号向栅极线提供栅极信号。 门信号包括具有第一栅极导通电平的预充电周期和具有高于第一栅极导通电平的第二栅极导通电平的主充电周期。

公开(公告)号：US08379011B2

公开(公告)日：2013-02-19

申请号：US12145825

申请日：2008-06-25

申请人： Hyeon-Seok Bae ,  Sang-Hoon Lee ,  Cheol-Ho Lee ,  Hun-Tae Kim

发明人： Hyeon-Seok Bae ,  Sang-Hoon Lee ,  Cheol-Ho Lee ,  Hun-Tae Kim

IPC分类号： G06F3/038 ,  G09G5/00 ,  G09G3/36

CPC分类号： G09G5/003 ,  G09G3/3666 ,  G09G3/3696 ,  G09G2310/08 ,  G09G2320/0276 ,  G09G2330/04

摘要： A driving device includes an output timing controller which controls an output timing of a first driving voltage and a second driving voltage respectively generated from a first voltage generator and a second voltage generator. A third driving voltage output from the output timing controller is provided to a first data driver and a second data driver, and also provided to a gamma voltage generator to generate a plurality of gamma voltages. Accordingly, a reverse electric potential between the third driving voltage and the gamma voltages is prevented from being generated in the first and second data drivers, therefore, preventing the first and second data drivers from being damaged.

摘要翻译： 驱动装置包括输出定时控制器，其控制分别从第一电压发生器和第二电压发生器产生的第一驱动电压和第二驱动电压的输出定时。 从输出定时控制器输出的第三驱动电压提供给第一数据驱动器和第二数据驱动器，并且还提供给伽马电压发生器以产生多个伽马电压。 因此，防止在第一和第二数据驱动器中产生第三驱动电压和伽马电压之间的反向电位，从而防止第一和第二数据驱动器被损坏。