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公开(公告)号:US09595219B2
公开(公告)日:2017-03-14
申请号:US14733271
申请日:2015-06-08
Applicant: LG DISPLAY CO., LTD.
Inventor: Dahye Shim , Joungmi Choi , Hyunguk Jang
IPC: G09G3/20
CPC classification number: G09G3/2092 , G09G2310/0267 , G09G2310/0286 , G09G2310/0289 , G09G2320/041 , G09G2330/021
Abstract: A scan driver and display device using the same are disclosed. The display device includes display panel, a data driver configured to supply a data signal to the display panel, and a scan driver formed in a non-display area of the display panel, including a shift register composed of a plurality of stages and a level shifter formed outside the display panel, and configured to supply a scan signal to the display panel using the shift register and the level shifter. The scan driver comprises: a sensor circuit unit configured to sense internal and external environmental conditions and generate a compensation circuit control signal on the basis of a sensed result; and a compensation circuit unit generating a compensation signal to compensate outputs of the plurality of stages in response to the compensation circuit control signal.
Abstract translation: 公开了一种使用其的扫描驱动器和显示装置。 显示装置包括显示面板,被配置为向显示面板提供数据信号的数据驱动器,以及形成在显示面板的非显示区域中的扫描驱动器,包括由多个级和级别构成的移位寄存器 移位器形成在显示面板外部,并且被配置为使用移位寄存器和电平移位器向显示面板提供扫描信号。 扫描驱动器包括:传感器电路单元,被配置为感测内部和外部环境条件,并且基于感测结果产生补偿电路控制信号; 以及补偿电路单元,其响应于所述补偿电路控制信号产生补偿信号以补偿所述多个级的输出。
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公开(公告)号:US20170032731A1
公开(公告)日:2017-02-02
申请号:US14983736
申请日:2015-12-30
Applicant: LG Display Co., Ltd.
Inventor: Dahye Shim , Joungmi Choi , Youngsung Cho , Jiah Kim
CPC classification number: G09G3/2092 , G06F1/263 , G09G3/3677 , G09G2300/0426 , G09G2300/08 , G09G2310/0267 , G09G2310/0286 , G09G2310/08 , G09G2330/026 , G09G2330/027 , G09G2330/028
Abstract: A display device having a plurality of gate lines and a gate drive circuit is disclosed. The gate drive circuit includes a pull-up transistor configured to receive a first clock signal and to charge an output node to a voltage of the first clock signal based on a voltage of a Q node. The output node is connected to a corresponding one of the gate lines. The gate drive circuit also includes a switching circuit configured to charge the Q node based on a second clock signal. The switching circuit has an inverter circuit configured to control the voltage of the Q node based on the second clock signal.
Abstract translation: 公开了具有多条栅极线和栅极驱动电路的显示装置。 栅极驱动电路包括被配置为接收第一时钟信号并且基于Q节点的电压将输出节点充电到第一时钟信号的电压的上拉晶体管。 输出节点连接到相应的一条栅极线。 栅极驱动电路还包括被配置为基于第二时钟信号对Q节点充电的开关电路。 开关电路具有逆变器电路,被配置为基于第二时钟信号来控制Q节点的电压。
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公开(公告)号:US10019929B2
公开(公告)日:2018-07-10
申请号:US14983736
申请日:2015-12-30
Applicant: LG Display Co., Ltd.
Inventor: Dahye Shim , Joungmi Choi , Youngsung Cho , Jiah Kim
CPC classification number: G09G3/2092 , G06F1/263 , G09G3/3677 , G09G2300/0426 , G09G2300/08 , G09G2310/0267 , G09G2310/0286 , G09G2310/08 , G09G2330/026 , G09G2330/027 , G09G2330/028
Abstract: A display device having a plurality of gate lines and a gate drive circuit is disclosed. The gate drive circuit includes a pull-up transistor configured to receive a first clock signal and to charge an output node to a voltage of the first clock signal based on a voltage of a Q node. The output node is connected to a corresponding one of the gate lines. The gate drive circuit also includes a switching circuit configured to charge the Q node based on a second clock signal. The switching circuit has an inverter circuit configured to control the voltage of the Q node based on the second clock signal.
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公开(公告)号:US10324561B2
公开(公告)日:2019-06-18
申请号:US15295831
申请日:2016-10-17
Applicant: LG Display Co., Ltd.
Inventor: Youngsung Cho , Joungmi Choi
Abstract: A display device including a touch screen and a driving circuit of the display device are disclosed. A display panel of the display device is driven while being divided into a first block, to which data is applied during a first display period, and a second block, to which data is applied during a second display period following a touch sensing period. A display driving circuit includes an (N−1)th stage driving a last gate line of the first block and an Nth stage driving a first gate line of the second block. The Nth stage includes a charger charging a Q node of the Nth stage in the touch sensing period in response to a multi-start signal before the second display period starts.
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公开(公告)号:US09711088B2
公开(公告)日:2017-07-18
申请号:US14817668
申请日:2015-08-04
Applicant: LG DISPLAY CO., LTD.
Inventor: Sehwan Na , Joungmi Choi , Dahye Shim , Daegyu Jo , Sohyun Kim , Hyunguk Jang
IPC: G09G3/36 , G09G3/3258 , G09G3/3266 , G11C19/28 , G09G3/3233
CPC classification number: G09G3/3258 , G09G3/3233 , G09G3/3266 , G09G3/3677 , G09G2300/0426 , G09G2300/0842 , G09G2300/0861 , G09G2310/0286 , G09G2310/08 , G09G2320/041 , G09G2330/04 , G11C19/28
Abstract: A display device includes a display panel and a scan driver including transistors formed in a non-display area of the display panel. A compensation voltage is supplied to the scan driver through a compensation gate electrode included in at least one transistor of the scan driver. Namely, the at least one transistor includes a gate electrode, to which a signal or a voltage for activating a channel is supplied, and the compensation gate electrode, to which the compensation voltage for recovering a threshold voltage is supplied.
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