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公开(公告)号：US20240334820A1
公开(公告)日：2024-10-03
申请号：US18582243
申请日：2024-02-20
发明人： Hyewon Choi , Youngmo Kim , Taehyung Kim , Jaeyi Sim , Seunggyu Yang , Jaehoon Lee , Yeongrong Park , Hyun Shin , Ilsoo Oh , Daewoong Lee , Hyeonjeong Im , Illhun Cho
IPC分类号： H10K85/60 , C07D251/24 , C07D401/14 , C07D405/14 , C09K11/06 , H10K50/16
CPC分类号： H10K85/654 , C07D251/24 , C07D401/14 , C07D405/14 , C09K11/06 , H10K85/615 , H10K85/626 , H10K85/6574 , C09K2211/1018 , H10K50/16 , H10K50/166
摘要： A light-emitting device includes a first electrode, a second electrode facing the first electrode, an interlayer between the first electrode and the second electrode and including an emission layer, and a heterocyclic compound represented by Formula 1. In addition, an electronic apparatus including the light-emitting device and the heterocyclic compound represented by Formula 1 are also provided.
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公开(公告)号：US20240321208A1
公开(公告)日：2024-09-26
申请号：US18612223
申请日：2024-03-21
发明人： Jaehoon Lee , Byunghyuk Shin , Joosun Yoon
IPC分类号： G09G3/3233
CPC分类号： G09G3/3233 , G09G2300/0452 , G09G2330/021
摘要： A display apparatus includes pixels, each of the pixels including a light-emitting diode, a first transistor connected to a driving voltage line and the light-emitting diode, a second transistor connected to the first transistor and the light-emitting diode, a third transistor connected to the second transistor and a first initialization voltage line, and a fourth transistor connected to the light-emitting diode and a second initialization voltage line. During a frame, each of the pixels operates in a first scan period and a second scan period. The first scan period includes a write-period in which a data signal is supplied and a first emission period in which the pixel is configured to emit light at a brightness corresponding to the data signal.
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公开(公告)号：US10930211B2
公开(公告)日：2021-02-23
申请号：US16235374
申请日：2018-12-28
发明人： Jai-hyun Koh , Jaehoon Lee , Heendol Kim , Kuk-hwan Ahn , Soo-yeon Lee , Moonshik Kang
IPC分类号： G09G3/3233 , G09G3/36 , G09G3/34 , G09G3/3225
摘要： A luminance control circuit of a display device includes a target luminance gain calculator calculating a target luminance gain based on an average luminance of a first image signal when the first image signal is determined to be a still image, an output luminance gain calculator calculating an output luminance gain based on a previous output luminance gain of a previous frame and the target luminance gain of a present frame, and a luminance scaler outputting a second image signal obtained by changing a luminance of the first image signal based on the output luminance gain.
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公开(公告)号：US10803812B2
公开(公告)日：2020-10-13
申请号：US16120607
申请日：2018-09-04
发明人： Seokha Hong , Nam-gon Choi , Moonshik Kang , Jaehoon Lee , Kyoungho Lim
IPC分类号： G09G3/34 , G02F1/13357 , G02F1/1335 , G09G3/36
摘要： A display device includes a display panel, a plurality of sensors, a signal control unit, and a backlight unit. A plurality of dimming regions is defined in the display panel. The signal control unit determines a plurality of representative luminance values corresponding to the plurality of dimming regions based on image data signals received from an external device and illuminance values of an external light measured by the plurality of sensors. The backlight unit provides lights having the representative luminance values to the display panel.
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公开(公告)号：US10789876B2
公开(公告)日：2020-09-29
申请号：US15702868
申请日：2017-09-13
发明人： Bonghyun You , Mun-San Park , Jai-Hyun Koh , Jaehoon Lee
摘要： A display system includes a display apparatus and a pivot performing part. The display apparatus includes a display panel configured to display an image and including a gate line and a data line, a gate driving part configured to output a gate signal to the gate line, and a data driving part configured to output a data signal to the data line. The pivot performing part is configured to receive, from the display apparatus, a pivot request data for performing a pivot function which rotates the image, and is to perform the pivot function on image data of the image in response to the pivot request data. A manufacturing cost of a display apparatus may be decreased, and a delay time of an image display may be decreased.
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公开(公告)号：US20200184899A1
公开(公告)日：2020-06-11
申请号：US16790655
申请日：2020-02-13
发明人： Jaehoon Lee , Bonghyun You , Soo-yeon Lee , Seokha Hong
IPC分类号： G09G3/3266 , G11C19/28 , G09G3/36
摘要： A gate driving circuit includes: a plurality of stages, a k-th stage from among the plurality of stages, the k-th stage including: an input circuit to receive a previous carry signal and to pre-charge a first node; a first output circuit to output a k-th gate signal; a second output circuit to output a k-th carry signal; a discharge hold circuit to transmit a clock signal to a second node, and to discharge the second node with a second low voltage; a first pull down circuit to discharge the k-th gate signal with a first low voltage, and to discharge the first node and the k-th carry signal with the second low voltage; and a discharge circuit for discharging the k-th carry signal with the second low voltage in response to the previous carry signal.
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公开(公告)号：US20170301279A1
公开(公告)日：2017-10-19
申请号：US15335210
申请日：2016-10-26
发明人： Jaehoon Lee , Bonghyun You , Soo-yeon Lee , Seokha Hong
IPC分类号： G09G3/20
CPC分类号： G09G3/3266 , G09G3/3677 , G09G2310/0286 , G11C19/28
摘要： A gate driving circuit includes: a plurality of stages, a k-th stage from among the plurality of stages, the k-th stage including: an input circuit to receive a previous carry signal and to pre-charge a first node; a first output circuit to output a k-th gate signal; a second output circuit to output a k-th carry signal; a discharge hold circuit to transmit a clock signal to a second node, and to discharge the second node with a second low voltage; a first pull down circuit to discharge the k-th gate signal with a first low voltage, and to discharge the first node and the k-th carry signal with the second low voltage; and a discharge circuit for discharging the k-th carry signal with the second low voltage in response to the previous carry signal.
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公开(公告)号：US20170116949A1
公开(公告)日：2017-04-27
申请号：US15215516
申请日：2016-07-20
发明人： Jaehoon Lee , Bonghyun You
IPC分类号： G09G3/36
CPC分类号： G09G3/3688 , G09G3/3677 , G09G2310/0202 , G09G2310/0286 , G09G2310/0289 , G09G2310/08
摘要： A gate driving circuit includes driving stages for providing gate signals to gate lines of a display panel. A k-th driving stage a k-th driving stage (k being equal to or greater than 2) among the driving stages includes a gate output unit configured to output a clock signal as a k-th gate signal in response to a voltage of a first node, a carry output unit configured to output the clock signal as a k-th carry signal in response to the voltage of the first node, a control unit configured to control a voltage level of the first node in response to a (k−1)th carry signal, a first discharge unit configured to discharge the k-th carry signal to a voltage level in response to the (k−1)th carry signal, and a second discharge unit configured to discharge the k-th carry signal to a voltage level in response to a discharge signal.
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公开(公告)号：US12087237B2
公开(公告)日：2024-09-10
申请号：US18132904
申请日：2023-04-10
发明人： Jaehoon Lee , Kyoungho Lim
IPC分类号： G09G3/3275
CPC分类号： G09G3/3275 , G09G2310/0272 , G09G2320/046
摘要： A display device including a display panel to display an image, a panel driver to drive the display panel, and a controller to control a driving of the panel driver. The controller includes a first circuit to receive frame data during an active period in synchronization with a vertical synchronization signal determining a start time point of a frame having the active period and a variable blank period, to shift a position of the frame data in response to a shift start signal to generate shift data, and to provide the shift data to the panel driver. A number of active periods of the vertical synchronization signal included in one period of the shift start signal differs from the number of active periods of the vertical synchronization signal included in another period of the shift start signal.
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公开(公告)号：US11893947B2
公开(公告)日：2024-02-06
申请号：US18119299
申请日：2023-03-09
发明人： Jaehoon Lee , Deokho Kang , Jong Wook Kim , Youngwoon Choi
IPC分类号： G09G3/3275
CPC分类号： G09G3/3275 , G09G2320/0233 , G09G2330/021
摘要： A display device includes a display panel including a plurality of pixels, an image data corrector configured to generate a corrected image data by adjusting an image data and a data driver providing data signals to the plurality of pixels based on the corrected image data. The image data corrector divides the display panel into a plurality of unit areas, and adjust the image data for a unit area among the plurality of unit areas by using a full image load for the entire display panel, a first image load for the unit area, and a second image load for peripheral unit areas surrounding the unit area among the plurality of unit areas.
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