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1. 发明授权

US08913048B2 Source driver circuit of liquid crystal display device 有权
标题翻译：液晶显示装置源驱动电路
公开(公告)号：US08913048B2
公开(公告)日：2014-12-16
申请号：US13575591
申请日：2010-03-12
申请人： Hun Yong Lim , Jung Hwan Choi , An Young Kim , Joon Ho Na , Dae Seong Kim , Dae Keun Han
发明人： Hun Yong Lim , Jung Hwan Choi , An Young Kim , Joon Ho Na , Dae Seong Kim , Dae Keun Han
IPC分类号： G06F3/038 , G09G3/36 , G09G5/00
CPC分类号： G09G3/3688 , G09G2310/0291 , G09G2330/026 , G09G2330/06
摘要： Provided is a technology for preventing noisy data from being displayed before valid data is inputted when power is turned on in a liquid crystal display. A source driver circuit for a liquid crystal display includes: a power supply voltage input unit configured to divide a first power supply voltage and a second power supply voltage, such that a middle level of the second power supply voltage is lower than a level of the first power supply voltage; a power supply voltage comparison unit configured to compare division voltages inputted from the power supply voltage input unit, and output an output voltage of a high level in a time period in which the middle level of the second power supply voltage is higher than the level of the first power supply voltage; a Schmitt trigger configured to output the output voltage of the power supply voltage comparison unit as a reset signal while preventing a sensitive response to external environment; and a specific voltage supply unit configured to output a voltage of a specific level in a time period between the input of the reset signal from the Schmitt trigger and the input of a first gate start pulse.
摘要翻译：提供了一种用于在液晶显示器中接通电源时在有效数据被输入之前防止有噪声数据被显示的技术。用于液晶显示器的源极驱动电路包括：电源电压输入单元，被配置为将第一电源电压和第二电源电压分压，使得第二电源电压的中间电平低于第第一电源电压; 电源电压比较单元，被配置为比较从电源电压输入单元输入的分压，并且在第二电源电压的中间电平高于第二电源电压的电平的时间段中输出高电平的输出电压第一电源电压; 施密特触发器，被配置为输出电源电压比较单元的输出电压作为复位信号，同时防止对外部环境的敏感响应; 以及特定电压供给单元，被配置为在施密特触发器的复位信号的输入和第一栅极起始脉冲的输入之间的时间段中输出特定电平的电压。

2. 发明申请

US20120133631A1 SOURCE DRIVER OUTPUT CIRCUIT OF FLAT PANEL DISPLAY DEVICE 审中-公开
标题翻译：平板显示设备的源驱动器输出电路
公开(公告)号：US20120133631A1
公开(公告)日：2012-05-31
申请号：US13301101
申请日：2011-11-21
申请人： Hun-Yong Lim , Ji-Hun Kim , Hyun-Min Song , Sang-Woo Kim , Joon-Ho Na
发明人： Hun-Yong Lim , Ji-Hun Kim , Hyun-Min Song , Sang-Woo Kim , Joon-Ho Na
IPC分类号： G09G5/00
CPC分类号： G09G3/3688 , G09G2310/0248
摘要： In a source driver output circuit of a flat panel display device, first and second latch units receive image data and store the received image data. A D/A converter converts the image data into a data voltage. An output buffer unit outputs the data voltage to a data line. A switching control unit decides whether or not the data voltages of two image data of the same channel among image data of horizontal lines adjacent to each other, stored in the first and second latch units, belong to the same grayscale voltage range, and outputs a switching control signal based on the decided result. A multiplexer unit selects a pre-charge voltage in response to the switching control signal or continuously maintains a connection state between a corresponding channel of the output buffer unit and the corresponding data line.
摘要翻译：在平板显示装置的源极驱动器输出电路中，第一和第二锁存单元接收图像数据并存储所接收的图像数据。 D / A转换器将图像数据转换成数据电压。输出缓冲单元将数据电压输出到数据线。切换控制单元判定存储在第一和第二锁存单元中的彼此相邻的水平线的图像数据中的相同信道的两个图像数据的数据电压是否属于相同的灰度级电压范围，并输出根据决定的结果切换控制信号。复用器单元响应于切换控制信号选择预充电电压，或者连续地保持输出缓冲器单元的相应通道与相应数据线之间的连接状态。

3. 发明申请

US20120299903A1 SOURCE DRIVER CIRCUIT OF LIQUID CRYSTAL DISPLAY DEVICE 有权
标题翻译：液晶显示装置的源驱动电路
公开(公告)号：US20120299903A1
公开(公告)日：2012-11-29
申请号：US13575591
申请日：2010-03-12
申请人： Hun Yong Lim , Jung Hwan Choi , An Young Kim , Joon Ho Na , Dae Seong Kim , Dae Keun Han
发明人： Hun Yong Lim , Jung Hwan Choi , An Young Kim , Joon Ho Na , Dae Seong Kim , Dae Keun Han
IPC分类号： G09G5/00 , G09G3/36
CPC分类号： G09G3/3688 , G09G2310/0291 , G09G2330/026 , G09G2330/06
摘要： Provided is a technology for preventing noisy data from being displayed before valid data is inputted when power is turned on in a liquid crystal display. A source driver circuit for a liquid crystal display includes: a power supply voltage input unit configured to divide a first power supply voltage and a second power supply voltage, such that a middle level of the second power supply voltage is lower than a level of the first power supply voltage; a power supply voltage comparison unit configured to compare division voltages inputted from the power supply voltage input unit, and output an output voltage of a high level in a time period in which the middle level of the second power supply voltage is higher than the level of the first power supply voltage; a Schmitt trigger configured to output the output voltage of the power supply voltage comparison unit as a reset signal while preventing a sensitive response to external environment; and a specific voltage supply unit configured to output a voltage of a specific level in a time period between the input of the reset signal from the Schmitt trigger and the input of a first gate start pulse.
摘要翻译：提供了一种用于在液晶显示器中接通电源时在有效数据被输入之前防止有噪声数据被显示的技术。用于液晶显示器的源极驱动电路包括：电源电压输入单元，被配置为分配第一电源电压和第二电源电压，使得第二电源电压的中间电平低于第第一电源电压; 电源电压比较单元，被配置为比较从电源电压输入单元输入的分压，并且在第二电源电压的中间电平高于第二电源电压的电平的时间段中输出高电平的输出电压第一电源电压; 施密特触发器，被配置为输出电源电压比较单元的输出电压作为复位信号，同时防止对外部环境的敏感响应; 以及特定电压供给单元，被配置为在施密特触发器的复位信号的输入和第一栅极起始脉冲的输入之间的时间段中输出特定电平的电压。

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