专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US11322068B2 Display device having gate driver 有权
公开(公告)号：US11322068B2
公开(公告)日：2022-05-03
申请号：US17465723
申请日：2021-09-02
申请人： LG Display Co., Ltd.
发明人： Yewon Hong , TaeWoong Moon , JunHyeon Bae , Yeonkyung Kim , Yeonwoo Shin
IPC分类号： G09G3/20
摘要： A display device having a gate driver, which may reduce a leakage current of a TFT and power consumption, is disclosed. Each stage of the gate driver comprises an output portion including a pull-up transistor outputting a corresponding clock of a plurality of clocks as a gate signal in response to control of a Q node, and a pull-down transistor outputting a gate-off voltage as an off-voltage of a gate signal in response to control of a QB node; a controller charging and discharging the Q node and charging and discharging the QB node to be in an opposite state of the Q node; and a back bias circuit having a back bias node capacitance-coupled with the Q node and generating a back gate bias voltage to apply the back gate bias voltage to the back bias node for an off-period of the Q node, wherein the back bias circuit may apply the back gate bias voltage to light shielding layers of some transistors, which are turned off for the off-period of the Q node, among transistors constituting the output portion and the controller, through the back bias node, thereby reducing or minimizing a leakage current of the corresponding transistors.

2. 发明授权

US11151920B2 Display device capable of data output based on demultiplexing 有权
公开(公告)号：US11151920B2
公开(公告)日：2021-10-19
申请号：US16504029
申请日：2019-07-05
申请人： LG DISPLAY CO., LTD.
发明人： Yewon Hong , JungHyun Lee , TaeWoong Moon
IPC分类号： G09G3/20 , G09G3/3275 , G09G3/36
摘要： A demultiplexer for sequentially outputting a data signal to a plurality of data lines disposed in a display panel can include a first switch connected to a first control node, the first switch being configured to electrically connect a first channel with a first data line among the plurality of data lines; a second switch connected to a second control node, the first switch being configured to electrically connect the first channel with a second data line among the plurality of data lines; a third switch connected to a third control node, the third switch being configured to electrically connect a second channel with a third data line among the plurality of data lines; and a fourth switch connected to a fourth control node, the fourth switch being configured to electrically connect the second channel with a fourth data line among the plurality of data lines, in which the first control node and the third control node are configured to receive a single first control signal, and be electrically disconnected from each other at a point in time, the second control node and the fourth control node are configured to receive a single second control signal, and be electrically disconnected from each other at a point in time, and the first control node and the third control node have different voltage conditions than the second control node and the fourth control node.

3. 发明授权

US11600683B2 Display apparatus comprising different types of thin film transistors with compact design and method for manufacturing the same 有权
公开(公告)号：US11600683B2
公开(公告)日：2023-03-07
申请号：US17119596
申请日：2020-12-11
申请人： LG Display Co., Ltd.
发明人： Yewon Hong
IPC分类号： H01L27/32 , H01L51/56 , H01L29/786
摘要： Discussed is a display apparatus capable of realizing a high resolution and a small power consumption, and a method for manufacturing the same, wherein the display apparatus includes a bottom gate type first thin film transistor disposed in a display area, and a top gate type second thin film transistor disposed in a non-display area.

4. 发明授权

US11587507B2 Display apparatus 有权
公开(公告)号：US11587507B2
公开(公告)日：2023-02-21
申请号：US17484596
申请日：2021-09-24
申请人： LG DISPLAY CO., LTD.
发明人： JungHyun Lee , Yewon Hong
IPC分类号： G09G3/325 , G09G3/3275
摘要： A display apparatus comprises a demultiplexing circuit portion that sequentially supplies data signals supplied from a data driving circuit to at least two data lines, and the demultiplexing circuit portion of the display apparatus comprises a switching portion that sequentially supplies the data signals to the at least two data lines based on a voltage of a control line; a voltage controller that controls the voltage of the control line in response to a time-division control signal; and a voltage discharge portion that discharges the voltage of the control line in response to the time-division control signal.

5. 发明授权

US11462166B2 Display apparatus 有权
公开(公告)号：US11462166B2
公开(公告)日：2022-10-04
申请号：US17015597
申请日：2020-09-09
申请人： LG Display Co., Ltd.
发明人： Yeonwoo Shin , JungHyun Lee , Yewon Hong
IPC分类号： G09G3/3258 , G09G3/3266 , G09G3/3275
摘要： A display apparatus includes first to third demultiplexer circuits respectively providing a data signal, supplied from a data driver, to three data lines. Each of the first to third demultiplexer circuits includes a switching unit providing the data signal to a corresponding data line of the three data lines on the basis of a voltage of a corresponding control line of first to third control lines, a voltage controller controlling the voltage of the corresponding control line in response to a corresponding time division control signal of first to third time division control signals and a corresponding auxiliary signal of first to third auxiliary signals which partially overlap the first to third time division control signals respectively, and a voltage discharger discharging the voltage of the corresponding control line.

6. 发明申请

US20200027405A1 DISPLAY APPARATUS 审中-公开
公开(公告)号：US20200027405A1
公开(公告)日：2020-01-23
申请号：US16517178
申请日：2019-07-19
申请人： LG Display Co., Ltd.
发明人： JungHyun Lee , Yewon Hong , TaeWoong Moon
IPC分类号： G09G3/3291 , G09G3/3225
摘要： A display apparatus is disclosed, which comprises a demultiplexing circuit portion for sequentially supplying data signals supplied from a data driving circuit to at least two data lines, the demultiplexing circuit portion including a switching portion for sequentially supplying the data signals to at least two data lines based on a voltage of a control line, a voltage controller for controlling the voltage of the control line in response to a time-division control signal and an auxiliary signal partially overlapped with the time-division control signal, and a voltage discharge portion for discharging the voltage of the control line in response to the time-division control signal. Therefore, an off current capable of being transferred to an organic light emitting diode may be prevented from occurring, a bezel area may be minimized, and an image of high resolution of a display panel may be embodied.

7. 发明申请

US20180357964A1 ELECTROLUMINESCENT DISPLAY 审中-公开
公开(公告)号：US20180357964A1
公开(公告)日：2018-12-13
申请号：US16005358
申请日：2018-06-11
申请人： LG Display Co., Ltd.
发明人： Sungsoo SHIN , Sohee CHOI , Yewon Hong
IPC分类号： G09G3/3258 , H01L27/32
CPC分类号： G09G3/3258 , G09G2300/0819 , G09G2310/0289 , G09G2310/08 , G09G2320/0219 , H01L27/1225 , H01L27/1251 , H01L27/1255 , H01L27/3262 , H01L27/3265 , H01L29/78675 , H01L29/7869
摘要： An electroluminescent display including pixels arranged in a matrix is disclosed. Each pixel includes a pixel circuit configured to sample a threshold voltage of a driving element for driving a light emitting element and compensate for a data voltage. The pixel circuit includes a first switch element connected to a data voltage path supplied with the data voltage, a second switch element connected to a reference voltage path supplied with a predetermined reference voltage, a third switch element connected between a gate of the driving element and the first and second switch elements, a fourth switch element connected to an initialization voltage path supplied with a predetermined initialization voltage, and a fifth switch element connected to a power path supplied with a predetermined pixel driving voltage higher than the reference voltage and the initialization voltage.

8. 发明授权

US11468812B2 Display apparatus 有权
公开(公告)号：US11468812B2
公开(公告)日：2022-10-11
申请号：US17366445
申请日：2021-07-02
申请人： LG Display Co., Ltd.
发明人： Yeonkyung Kim , TaeWoong Moon , JunHyeon Bae , Yewon Hong , Yeonwoo Shin
IPC分类号： H02H9/04 , H01L27/02 , G09G3/20
摘要： A display apparatus comprises a display panel on which a plurality of pixels are displayed, a plurality of signal lines to which a signal required to drive the display panel is supplied, and an electrostatic discharge circuit connected between each of the plurality of signal lines and the electrostatic discharge line. The electrostatic discharge circuit includes first and second current paths between the signal line and the electrostatic discharge line, a first electrostatic discharge circuit connected to the first current path, including a plurality of first thin film transistors having a first gate electrode connected to the second current path and a second gate electrode connected to the first current path, and a second electrostatic discharge circuit connected to the second current path, including at least one second thin film transistor having a first gate electrode connected to the first current path and a second gate electrode connected to the first current path.

9. 发明授权

US11443674B2 Display device having gate driver 有权
公开(公告)号：US11443674B2
公开(公告)日：2022-09-13
申请号：US17465731
申请日：2021-09-02
申请人： LG Display Co., Ltd.
发明人： Yewon Hong , TaeWoong Moon , JunHyeon Bae , Yeonkyung Kim , Yeonwoo Shin
IPC分类号： G09G3/20
摘要： A display device having a gate driver, which may reduce a leakage current of a TFT and power consumption, is disclosed. Each stage of the gate driver comprises an output portion including a pull-up transistor outputting a corresponding clock of a plurality of clocks as a gate signal in response to control of a Q node, and a pull-down transistor outputting a first gate-off voltage as an off-voltage of a gate signal in response to control of a QB node; a controller charging and discharging the Q node and charging and discharging the QB node to be in an opposite state of the Q node; and a back bias circuit having a back bias node capacitance-coupled with the Q node and generating a second gate-off voltage lower than the first gate-off voltage to apply the second gate-off voltage to the back bias node for an off-period of the Q node, wherein the back bias circuit may apply the back gate bias voltage to light shielding layers of some transistors, which are turned off for the off-period of the Q node, among transistors constituting the output portion and the controller, through the back bias node, thereby reducing or minimizing a leakage current of the corresponding transistors.

10. 发明申请

US20210193784A1 DISPLAY APPARATUS COMPRISING DIFFERENT TYPES OF THIN FILM TRANSISTORS AND METHOD FOR MANUFACTURING THE SAME 有权
公开(公告)号：US20210193784A1
公开(公告)日：2021-06-24
申请号：US17119596
申请日：2020-12-11
申请人： LG Display Co., Ltd.
发明人： Yewon Hong
IPC分类号： H01L27/32 , H01L29/786 , H01L51/56
摘要： Discussed is a display apparatus capable of realizing a high resolution and a small power consumption, and a method for manufacturing the same, wherein the display apparatus includes a bottom gate type first thin film transistor disposed in a display area, and a top gate type second thin film transistor disposed in a non-display area.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式