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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
申请人： LG Display Co., Ltd.
发明人： Dahye Shim , Joungmi Choi , Youngsung Cho , Jiah Kim
CPC分类号： G09G3/2092 , G06F1/263 , G09G3/3677 , G09G2300/0426 , G09G2300/08 , G09G2310/0267 , G09G2310/0286 , G09G2310/08 , G09G2330/026 , G09G2330/027 , G09G2330/028
摘要： 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：US10319284B2
公开(公告)日：2019-06-11
申请号：US15630136
申请日：2017-06-22
申请人： LG Display Co., Ltd.
发明人： Byeongseong So , Youngsung Cho
IPC分类号： G09G3/20 , G09G3/3266 , G09G3/36
摘要： A display device includes: a pixel array including pixels at intersections of data lines and gate lines, a shift register including stages connected as a cascade, the shift register sequentially supplying gate pulses to the gate lines, and a node controller controlling nodes in the shift register, a first stage including: a pull-up transistor charging the output based on a Q node for a first gate pulse, a pull-down transistor discharging the output to a gate-low voltage based on a QB node voltage, a start controller pre-charging the Q node, and a QB node discharge controller discharging the QB node to a first low-potential voltage based on a first reset signal input line (IL), the node controller including a first reset signal generator that, during a vertical blanking interval of each frame, charges the first reset signal IL in response to a turn-on voltage applied to a gate-low voltage IL.
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公开(公告)号：US11175759B2
公开(公告)日：2021-11-16
申请号：US16714438
申请日：2019-12-13
申请人： LG Display Co., Ltd.
发明人： Byeong-Seong So , Youngsung Cho
摘要： Disclosed is a display apparatus with an integrated antenna, in which an antenna and a touch screen are embedded, and the display apparatus comprises a display panel including a touch screen and an antenna electrode, wherein the display panel is divided into a display area and a non-display area surrounding the display area and includes a pixel array part including pixel driving circuits provided in the display area and an electrode array part provided on the pixel array part and including the touch screen and the antenna electrode, the display area includes a pixel including the pixel driving circuit, and a portion of the touch screen is open.
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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
申请人： LG Display Co., Ltd.
发明人： Dahye Shim , Joungmi Choi , Youngsung Cho , Jiah Kim
CPC分类号： G09G3/2092 , G06F1/263 , G09G3/3677 , G09G2300/0426 , G09G2300/08 , G09G2310/0267 , G09G2310/0286 , G09G2310/08 , G09G2330/026 , G09G2330/027 , G09G2330/028
摘要： 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.
摘要翻译： 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：US11195472B2
公开(公告)日：2021-12-07
申请号：US17091810
申请日：2020-11-06
申请人： LG Display Co., Ltd.
发明人： Youngsung Cho , Byeongseong So , Hyunguk Jang
IPC分类号： G09G3/3233 , G09G3/3266
摘要： A display device includes a display panel, a data driving circuit, a gate driving circuit, and a timing controller, each pixel of the display panel includes a light-emitting diode, a driving transistor, second to sixth switching transistors, and a storage capacitor, and at a sensing step at which the light-emitting diode does not emit light, a conduction path that is connected through the sixth switching transistor, the driving transistor, the second switching transistor, and the third switching transistor is formed, and an electrical signal reflecting a threshold voltage of one of the second to fourth switching transistors is transferred to a data line through the conduction path.
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公开(公告)号：US11100867B2
公开(公告)日：2021-08-24
申请号：US16710848
申请日：2019-12-11
申请人： LG Display Co., Ltd.
发明人： Youngsung Cho , Byeong-Seong So
IPC分类号： G09G3/3266 , G09G3/3258 , G09G3/3291
摘要： Disclosed is a light emitting display apparatus in which two of three scan signals used by a pixel driving circuit provided in one pixel are supplied through two scan lines provided in the pixel and the other remaining signal is supplied through a scan line provided in another pixel adjacent to the pixel.
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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
申请人： LG Display Co., Ltd.
发明人： Youngsung Cho , Joungmi Choi
摘要： 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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