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公开(公告)号：US12087208B2
公开(公告)日：2024-09-10
申请号：US17861706
申请日：2022-07-11
发明人： Donggyu Lee , Jae-Hyeon Jeon , Jin-Wook Yang
IPC分类号： G09G3/20 , G09G3/3233
CPC分类号： G09G3/2096 , G09G3/3233 , G09G2300/0426 , G09G2300/0819 , G09G2300/0842 , G09G2300/0861 , G09G2310/0297 , G09G2310/061 , G09G2310/08 , G09G2320/0233 , G09G2320/0626
摘要： A driving controller of a display device includes a memory that stores an input image signal in response to a control signal, a scan signal generator outputs an internal scan signal in response to the control signal, and a multiplexer outputs one of the input image signal and a storage image signal as an output image signal in response to the control signal and the internal scan signal. The storage image signal is provided from the memory, and the memory outputs the storage image signal in response to the internal scan signal.
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公开(公告)号：US12008952B2
公开(公告)日：2024-06-11
申请号：US18224452
申请日：2023-07-20
发明人： Jin-Wook Yang , Yu-Chol Kim , Donggyu Lee , Jae-Hyeon Jeon
IPC分类号： G09G3/32
CPC分类号： G09G3/32 , G09G2310/0216 , G09G2310/0267 , G09G2330/028
摘要： A pixel includes: a light-emitting element including an anode and a cathode, a first transistor including a first and a second electrode and a gate electrode connected with a first node, a third transistor connected between the second electrode of the first transistor and the first node and including a gate electrode connected with a first scan line, a sixth transistor connected between the second electrode of the first transistor and the anode and including a gate electrode connected with a first emission line, and a seventh transistor connected between the anode and an initialization voltage line and including a gate electrode connected with a second scan line. During an initialization period, the third, sixth, and seventh transistors are turned on such that an initialization voltage from the initialization voltage line is transferred to the gate electrode of the first transistor.
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公开(公告)号：US10068516B2
公开(公告)日：2018-09-04
申请号：US14679401
申请日：2015-04-06
发明人： Nam-Gon Choi , Joon-Chul Goh , Gigeun Kim , Byungsun Kim , Jung-Won Kim , HongSoo Kim , Donggyu Lee , Jakyoung Jin , Bonghyun You
摘要： A display device includes a timing controller, a data driver, and a display panel. The timing controller includes a first compensator receiving a first image data, selecting a temperature compensation value in accordance with the external temperature, and converting the first image data to a second image data on the basis of the selected temperature compensation value and a second compensator selecting a kickback voltage compensation value predetermined in accordance with the areas of the display panel and converting the second image data to the output image data on the basis of the kickback voltage compensation value selected in accordance with the areas.
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公开(公告)号：US12033566B2
公开(公告)日：2024-07-09
申请号：US18127341
申请日：2023-03-28
发明人： Jin-Wook Yang , Yu-Chol Kim , Sehyuk Park , Donggyu Lee , Jae-Hyeon Jeon
IPC分类号： G09G3/32
CPC分类号： G09G3/32 , G09G2310/0267 , G09G2310/0275 , G09G2310/08
摘要： A display device includes: a pixel electrically connected to a data line, a write scan line, an initialization scan line, a compensation scan line, a transmission control line, and an emission control line; a first driving circuit configured to provide a write scan signal to the write scan line and a second driving circuit configured to receive a plurality of clock signals, each of which has a time duration of one unit horizontal period and provide an initialization scan signal, a compensation scan signal, a transmission control signal, and an emission control signal to the initialization scan line, the compensation scan line, the transmission control line, and the emission control line, respectively. Each of the initialization scan signal and the compensation scan signal has an activation interval of one unit horizontal periods or more.
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公开(公告)号：US11972730B2
公开(公告)日：2024-04-30
申请号：US18126650
申请日：2023-03-27
发明人： Donggyu Lee , Jin-Wook Yang , Jae-Hyeon Jeon
IPC分类号： G09G5/00 , G09G3/3233
CPC分类号： G09G3/3233 , G09G2300/0819 , G09G2300/0842 , G09G2300/0861 , G09G2310/0264 , G09G2310/08 , G09G2330/021
摘要： A display device includes: a display panel and a panel driver for driving the display panel during a plurality of driving frames whose frequencies are varied. Among the driving frames, a first driving frame having a first frequency includes a first write period, and a second driving frame having a second frequency lower than the first frequency includes a second write period and a variable blank period. The panel driver includes a data driver and a driving controller. Each of the first and second write periods includes N horizontal periods (N is an integer number equal to or greater than 1), each of the N horizontal periods has a first duration, and each of the first and second write periods has a second duration corresponding to N times of the first duration. The driving controller applies a training synchronizing signal to the data driver during the variable blank period.
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公开(公告)号：US10410586B2
公开(公告)日：2019-09-10
申请号：US15195224
申请日：2016-06-28
发明人： Heesun Ahn , Kyungyoul Min , Junyong Song , Donggyu Lee
IPC分类号： G09G3/3233 , G09G3/325 , G09G3/3258 , G09G3/3266 , G09G3/3291
摘要： A display device includes a timing controller which transmits an image control signal and at a same time receive a feedback signal, a source driver which transmits the feedback signal and receive the image control signal, and a duplex communication path between the timing controller and the source driver, where the timing controller detects a voltage level of a signal received through the duplex communication path and recovers the feedback signal according to the detected voltage level.
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公开(公告)号：US12063830B2
公开(公告)日：2024-08-13
申请号：US18200646
申请日：2023-05-23
发明人： Donggyu Lee , Jihye Kim , Jin-Wook Yang , Jae-Hyeon Jeon
IPC分类号： H01L29/08 , H10K59/121 , H10K59/131
CPC分类号： H10K59/131 , H10K59/1213 , H10K59/1216
摘要： A display device includes a display panel including a plurality of pixels. At least one of the pixel includes a light emitting diode, a first transistor connected between a power line receiving a power source voltage and an anode of the light emitting diode, a second transistor connected between a data line and a first reference node, a first capacitor connected between the power line and the first reference node, a second capacitor connected between the first reference node and a second reference node, a third transistor connected between the first refence node and a reference voltage line receiving a reference voltage, a fourth transistor connected between an initialization voltage line receiving an initialization voltage and a drain of the first transistor, and a fifth transistor connected between the drain of the first transistor and the anode of the light emitting diode.
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公开(公告)号：US11696475B2
公开(公告)日：2023-07-04
申请号：US17166017
申请日：2021-02-03
发明人： Donggyu Lee , Jihye Kim , Jin-Wook Yang , Jae-Hyeon Jeon
IPC分类号： H01L29/08 , H10K59/131 , H10K59/121
CPC分类号： H10K59/131 , H10K59/1213 , H10K59/1216
摘要： A display device includes a display panel including a plurality of pixels. At least one of the pixel includes a light emitting diode, a first transistor connected between a power line receiving a power source voltage and an anode of the light emitting diode, a second transistor connected between a data line and a first reference node, a first capacitor connected between the power line and the first reference node, a second capacitor connected between the first reference node and a second reference node, a third transistor connected between the first reference node and a reference voltage line receiving a reference voltage, a fourth transistor connected between an initialization voltage line receiving an initialization voltage and a drain of the first transistor, and a fifth transistor connected between the drain of the first transistor and the anode of the light emitting diode.
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公开(公告)号：US11676535B2
公开(公告)日：2023-06-13
申请号：US17586054
申请日：2022-01-27
发明人： Jae-Hyeon Jeon , Donggyu Lee , Jin-Wook Yang
IPC分类号： G09G3/3233
CPC分类号： G09G3/3233 , G09G2300/0426 , G09G2310/0278 , G09G2320/0233
摘要： A pixel of a display device includes a light-emitting diode and a pixel circuit that provides a current corresponding to a data signal to the light-emitting diode in response to a plurality of scan signals and a light emission control signal. The light emission control signal includes a first section and a second section, the second section includes a light-emission-on section and a light-emission-off section, the light emission control signal has an active level in the light-emission-on section and has an inactive level in each of the first section and the light-emission-off section, and the light-emission-on section and the light-emission-off section of the light emission control signal may vary depending on a light emission ratio of a dimming mode.
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公开(公告)号：US10692416B2
公开(公告)日：2020-06-23
申请号：US15689400
申请日：2017-08-29
发明人： Yongjun Jang , Cheolwoo Park , Young-Soo Hwang , Jaewoong Kang , Seunghwan Park , Donggyu Lee
摘要： A display apparatus includes a display panel which displays an image, and includes a gate line and a data line, a gate driving part which outputs a gate signal to the gate line and a data driving part which outputs a data signal to the data line, and selectively outputs first color gamma data, second color gamma data and third color gamma data in response to a selection signal, and generates the data signal using the first color gamma data, the second color gamma data and the third color gamma data.
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