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公开(公告)号：US11626074B2
公开(公告)日：2023-04-11
申请号：US17283430
申请日：2019-08-26
发明人： Jin Young Roh , Hui Nam , Se Hyuk Park , Hyo Jin Lee
IPC分类号： G09G3/3233 , G09G3/3266
摘要： A display device includes a display panel including a plurality of pixels each coupled to a write scan line, a compensation scan line, an initialization scan line, a bypass scan line, and a data line; and a scan driver configured to supply i (where i is a natural number) write scan pulses, compensation scan pulses, initialization scan pulses, and bypass scan pulses to the write scan line, the compensation scan line, the initialization scan line, and the bypass scan line, respectively, during a first period corresponding to one frame period, and to supply j (where j is a natural number other than i) write scan pulses to the write scan line during each of frame periods of a second period including a plurality of consecutive frame periods.
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公开(公告)号：US11594188B1
公开(公告)日：2023-02-28
申请号：US17738303
申请日：2022-05-06
发明人： Se Hyuk Park , Seung Jae Lee
IPC分类号： G09G3/3291 , G09G3/20 , G09G3/36
摘要： A display device including: a display panel including first and second display areas, and including pixels in the first and second display areas; and a data driver to output data signals to the pixels through a channels arranged along a first direction, wherein the channels include a first channel group corresponding to the first display area and a second channel group corresponding to the second display area, wherein some of the pixels emit light in different colors and have a first pixel arrangement along the first direction, and based on channel selection information about the first or second channel groups, the data driver outputs first data signals in a first output order along the first direction corresponding to the first pixel arrangement through the first channel group, and outputs second data signals in a second output order different from the first output order through the second channel group.
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公开(公告)号：US11423834B2
公开(公告)日：2022-08-23
申请号：US17142131
申请日：2021-01-05
发明人： Se Hyuk Park , Hong Soo Kim , Jin Young Roh , Hyo Jin Lee , Jae Keun Lim
IPC分类号： G09G3/3291 , G09G3/3266 , G09G3/20 , G09G3/3233
摘要： A display device includes: a pixel configured to display an image based on image data and a reference voltage; a controller configured to generate reference voltage data corresponding to the reference voltage for restraining leakage current in the pixel based on a frame frequency; and a power supply configured to generate the reference voltage based on the reference voltage data and supply the reference voltage to the pixel.
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公开(公告)号：US11367379B1
公开(公告)日：2022-06-21
申请号：US17409865
申请日：2021-08-24
发明人： Se Hyuk Park , Jae Keun Lim , Hong Soo Kim , Jin Young Roh , Hyo Jin Lee
IPC分类号： G09G3/20
摘要： A display device according to an embodiment of the disclosure includes a timing controller, a scan driver including a plurality of stages connected to a plurality of clock signal lines and generating a plurality of scan signals in response to the scan start signal, a data driver configured to generate a plurality of data signals based on the image data, and a pixel portion including a plurality of pixels. One stage in the scan driver transmits a carry signal to 2n-th next stage. The timing controller selects any one of a normal frequency and low frequencies lower than the normal frequency as a driving frequency based on the input image data, and adjusts a clock duty of the plurality of clock signals so that a time required to output all of the plurality of scan signals during one frame is constant irrespective of the driving frequency.
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公开(公告)号：US20200234632A1
公开(公告)日：2020-07-23
申请号：US16841239
申请日：2020-04-06
发明人： Hyo Jin Lee , Se Hyuk Park
IPC分类号： G09G3/32
摘要： A pixel includes: a first transistor configured to generate a driving current corresponding to a data signal transmitted from a corresponding data line; a first light emitting diode (LED) including a cathode connected to a first power supply line and an anode connected to a second power supply line, and configured to emit light by the driving current; a second light emitting diode (LED) including a cathode connected to the second power supply line and an anode connected to the first power supply line, and configured to emit light by the driving current; a second transistor connected to the anode of the first light emitting diode (LED), and configured to transmit the driving current to the first light emitting diode (LED); and a third transistor connected to the anode of the second light emitting diode (LED), and configured to transmit the driving current to the second light emitting diode (LED.
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公开(公告)号：US20190051242A1
公开(公告)日：2019-02-14
申请号：US15870707
申请日：2018-01-12
发明人： Hyo Jin Lee , Se Hyuk Park
IPC分类号： G09G3/3241
摘要： A pixel includes: a first transistor configured generate a driving current corresponding to a data signal transmitted from a corresponding data line; a first light emitting diode (LED) including a cathode connected to a first power supply line and an anode connected to a second power supply line, and configured to emit light by the driving current; a second light emitting diode (LED) including a cathode connected to the second power supply line and an anode connected to the first power supply line, and configured to emit light by the driving current; a second transistor connected to the anode of the first light emitting diode (LED), and configured to transmit the driving current to the first light emitting diode (LED); and a third transistor connected to the anode of the second light emitting diode (LED), and configured to transmit the driving current to the second light emitting diode (LED.
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公开(公告)号：US11798478B2
公开(公告)日：2023-10-24
申请号：US17840543
申请日：2022-06-14
发明人： Se Hyuk Park , Jin Young Roh , Woo Mi Bae , Hae Kwan Seo , Young Ha Sohn , Jin Wook Yang
IPC分类号： G09G3/3241 , G09G3/20
CPC分类号： G09G3/3241 , G09G3/2074 , G09G2300/0413 , G09G2300/0426
摘要： A display device includes: a data driver for supplying a data signal to each of a plurality of data lines; and a pixel unit including a plurality of sub-pixels. The pixel unit further includes one dummy data line disposed separate from a data line of a first column among the data lines. The data line of the first column is connected to sub-pixels disposed on odd-numbered pixel rows among sub-pixels disposed on a first pixel column, and is connected to sub-pixels disposed on even-numbered pixel rows among sub-pixels disposed on a third pixel column. The dummy data line is connected to sub-pixels disposed on the even-numbered pixel rows among the sub-pixels disposed on the first pixel column.
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公开(公告)号：US11631355B2
公开(公告)日：2023-04-18
申请号：US17521066
申请日：2021-11-08
发明人： Se Hyuk Park , Jin Young Roh , Hyo Jin Lee , Jae Keun Lim
IPC分类号： G09G3/20
摘要： A display system includes: a host processor which outputs first image data and outputs scan frequency information and a partial scan enable signal, based on an image driving frequency; a display module controlled by the host processor; and an interface. The display module includes: a display driving circuit which controls a selection of pixel rows to which the data signals are supplied based on the scan frequency information and the partial scan enable signal; and a display panel which displays an image on selected pixel rows based on the data signals. In a video mode of the interface, the host processor divides and outputs the first image data through the interface during transmission periods, based on the image driving frequency, and suspends an output of the first image data through the interface during suspend periods.
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公开(公告)号：US11527204B2
公开(公告)日：2022-12-13
申请号：US17524649
申请日：2021-11-11
发明人： Se Hyuk Park , Hong Soo Kim , Jin Young Roh , Hyo Jin Lee , Jae Keun Lim
IPC分类号： G09G3/36 , G09G3/3258 , G09G3/3291 , H01L27/32 , H01L29/786 , H01L27/12
摘要： A display apparatus includes a display panel, a first gate driver, a second gate driver, a third gate driver, and a data driver. The display apparatus is operable in a low frequency driving mode, and the low frequency driving mode includes a writing frame and a holding frame. At least one of gate power voltages used to generate a first gate signal, a second gate signal, and an emission signal has a first voltage level in the writing frame of the low frequency driving mode and a second voltage level in the holding frame of the low frequency driving mode. The data voltage is applied to the pixel in the writing frame of the low frequency driving mode. The data voltage applied to the pixel in the writing frame of the low frequency driving mode is maintained in the holding frame of the low frequency driving mode.
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公开(公告)号：US11462172B2
公开(公告)日：2022-10-04
申请号：US17122505
申请日：2020-12-15
发明人： Se Hyuk Park , Ji Youn Kim , Hong Soo Kim , Jin Young Roh , Hyo Jin Lee , Jae Keun Lim
IPC分类号： G09G3/32 , G09G3/3266
摘要： A display device includes: a pixel part including a plurality of pixels; a first scan driver to provide a first scan signal to each of the pixels; and an initialization controller to control the first scan driver. Each of the pixels includes a pixel circuit including a plurality of transistors, and a light emitting element connected to the pixel circuit, an anode of the light emitting element is to be initialized to a first initialization voltage in response to the first scan signal having a gate-on level, and the initialization controller is to determine whether to provide the first scan signal having the gate-on level to each of the pixels for each frame.
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