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1.发明公开公开(公告)号：US20240105104A1
公开(公告)日：2024-03-28
申请号：US18133615
申请日：2023-04-12
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Se Hyuk PARK , Hong Soo KIM , Young Ha SOHN , Jin Wook YANG , Dong Gyu LEE , Jae Hyeon JEON
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2300/0842 , G09G2320/0247 , G09G2330/021
Abstract: A pixel includes: a light emitting element; a first transistor including a gate electrode electrically connected to a first node, a second node to which a first power voltage for driving the light emitting element is to be applied, and a third node electrically connected to the light emitting element; and a bias control transistor configured to be controlled in operating timing thereof by a bias control signal, and configured to switch electrical connection between the second node and a bias power line for transmitting a bias voltage. In one frame period, a voltage level of the bias voltage to be applied to the second node sequentially increases.
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公开(公告)号：US20200315015A1
公开(公告)日：2020-10-01
申请号：US16796601
申请日：2020-02-20
Applicant: Samsung Display Co., LTD.
Inventor： Won Tae KIM , Ji Hye KIM , Jae Hyeon JEON
Abstract: A display device includes a folding area, a first unfolding area located on a side of the folding area, and a second unfolding area located on a second side of the folding area. The display device further includes a display module which includes a display panel, and a first circuit board which is attached to the display panel and disposed under the display module, wherein the first circuit board includes a base film, a first driving integrated circuit (“IC”) disposed in the first unfolding area, and a second driving IC disposed in the second unfolding area where the first driving IC and the second driving IC do not overlap each other in a thickness direction during folding.
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公开(公告)号：US20210398508A1
公开(公告)日：2021-12-23
申请号：US17162138
申请日：2021-01-29
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Dong Gyu LEE , Ji Hye KIM , Jin Wook YANG , Jae Hyeon JEON
Abstract: An image display system includes a graphic processor which generates an image signal, a control signal, and a variable frequency signal; and a display device which displays an image at a frame frequency corresponding to the variable frequency signal from the graphic processor. The display device includes pixels connected to emission control lines, data lines, and scan lines; a controller which provides reference data including information on reference cycles, which are cycles in which an emission control start signal is output, to the graphic processor, outputs the emission control start signal based on the control signal, and adjusting an output timing of a scan start signal based on the variable frequency signal; an emission driver which supplies emission control signals to the emission control lines based on the emission control start signal; and a scan driver which supplies scan signals to the scan lines based on the scan start signal.
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公开(公告)号：US20210065628A1
公开(公告)日：2021-03-04
申请号：US16890328
申请日：2020-06-02
Applicant: Samsung Display Co., Ltd.
Inventor： Yu Chol KIM , Jin Wook YANG , Ji Hye KIM , Young Ha SOHN , Jae Hyeon JEON
IPC: G09G3/3258 , G09G3/3266 , G09G3/3291
Abstract: A display device driving method includes: providing a reference voltage for compensating a threshold voltage of a driving transistor in a pixel; and providing a data signal to the pixel, wherein providing the reference voltage, and providing the data signal to the pixel are performed in a first frame period, and a second frame period successive to the first frame period, wherein the display device driving method further comprises providing a compensation signal generated by comparing a data signal with a reference voltage provided in a previous frame period of each frame period to the pixel before providing the reference voltage is ended.
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公开(公告)号：US20240347001A1
公开(公告)日：2024-10-17
申请号：US18388830
申请日：2023-11-11
Applicant: Samsung Display Co., LTD.
Inventor： Se Hyuk PARK , Young Ha SOHN , Jin Wook YANG , Dong Gyu LEE , Suk Hun LEE , Jae Hyeon JEON
IPC: G09G3/3233
CPC classification number: G09G3/3233 , G09G2320/0242 , G09G2320/0285
Abstract: A display device includes an on-duty determiner which determines an on-duty period of an emission signal, based on a number of at least one cycle of a current frame, a first compensation value determiner which determines a first compensation value of a bias voltage according to a variation of the on-duty period, a second compensation value determiner which determines a second compensation value of the bias voltage, based on a driving frequency of a previous frame, and a third compensation value determiner which determines a third compensation value, based on the first compensation value and the second compensation value.
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Patent Agency Ranking
公开(公告)号：US20210049965A1
公开(公告)日：2021-02-18
申请号：US16943197
申请日：2020-07-30
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Jae Hyeon JEON , Joon Chul GOH , Jin Wook YANG , Ki Hong SONG
IPC: G09G3/3258 , G09G3/3266
Abstract: A display device includes: a plurality of pixels, where each of the pixels includes a light emitting device and a pixel circuit coupled to the light emitting device; a scan driver which supplies a scan signal to the pixel circuit; a data driver which supplies a data signal to the pixel circuit; a power supply which supplies a voltage to the pixel circuit; a timing controller which controls the scan driver; a first signal generator which provides a first clock signal to the timing controller; and a second signal generator which provides a second clock signal to the timing controller.
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公开(公告)号：US20210027739A1
公开(公告)日：2021-01-28
申请号：US16899779
申请日：2020-06-12
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Won Tae KIM , Ji Hye KIM , Jae Hyeon JEON
IPC: G09G5/00
Abstract: A display device includes: a first pixel connected to a first scan line and a data line; a second pixel connected to a second scan line and the data line; and a data driver connected to the data line. The data driver includes: a data voltage generator which applies a data voltage corresponding to a grayscale value of the first pixel to the data line when a scan signal of a turn-on level is applied to the first scan line; and an off voltage generator which applies an off voltage corresponding to a black grayscale value to the data line when a scan signal of a turn-on level is applied to the second scan line, in a first mode.
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8.发明申请公开(公告)号：US20250087139A1
公开(公告)日：2025-03-13
申请号：US18956066
申请日：2024-11-22
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Se Hyuk PARK , Hong Soo KIM , Young Ha SOHN , Jin Wook YANG , Dong Gyu LEE , Jae Hyeon JEON
IPC: G09G3/32
Abstract: A pixel includes: a light emitting element; a first transistor including a gate electrode electrically connected to a first node, a second node to which a first power voltage for driving the light emitting element is to be applied, and a third node electrically connected to the light emitting element; and a bias control transistor configured to be controlled in operating timing thereof by a bias control signal, and configured to switch electrical connection between the second node and a bias power line for transmitting a bias voltage. In one frame period, a voltage level of the bias voltage to be applied to the second node sequentially increases.
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公开(公告)号：US20240096265A1
公开(公告)日：2024-03-21
申请号：US18133593
申请日：2023-04-12
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Young Ha SOHN , Se Hyuk PARK , Jin Wook YANG , Dong Gyu LEE , Jae Hyeon JEON
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2300/0426 , G09G2310/0267 , G09G2310/0275 , G09G2310/0278 , G09G2320/0247 , G09G2330/021
Abstract: A pixel includes: a first transistor including a gate electrode electrically connected to a first node, a second node to which a first power voltage for driving the light emitting element is applied, and a third node electrically connected to the light emitting element; a first emission control transistor having an on-off timing controlled by a first emission control signal; and a second emission control transistor having an on-off timing controlled by a second emission control signal. A time interval exists between a time at which the first emission control signal having a turn-on level is input such that a voltage of the second node is dropped from a bias voltage having a voltage level higher than a voltage level of the first power voltage and a time at which the second emission control signal having a turn-on level is input.
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公开(公告)号：US20220400552A1
公开(公告)日：2022-12-15
申请号：US17892634
申请日：2022-08-22
Applicant: Samsung Display Co., LTD.
Inventor： Won Tae KIM , Ji Hye KIM , Jae Hyeon JEON
Abstract: A display device includes a folding area, a first unfolding area located on a side of the folding area, and a second unfolding area located on a second side of the folding area. The display device further includes a display module which includes a display panel, and a first circuit board which is attached to the display panel and disposed under the display module, wherein the first circuit board includes a base film, a first driving integrated circuit (“IC”) disposed in the first unfolding area, and a second driving IC disposed in the second unfolding area where the first driving IC and the second driving IC do not overlap each other in a thickness direction during folding.
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