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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：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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公开(公告)号：US20210287630A1
公开(公告)日：2021-09-16
申请号：US17142585
申请日：2021-01-06
Applicant: Samsung Display Co., Ltd.
Inventor： Ji Hye KIM , Young Ha SOHN , Jin-Wook YANG , Dong Gyu LEE , Jae-Hyeon JEON
Abstract: A display apparatus includes an optical module, a display panel and a display panel driver. The display panel is disposed on the optical module. The display panel driver is configured to drive the display panel. The display panel includes a first display area including at least a portion overlapping with the optical module and a second display area not overlapping with the optical module in a plan view. The first display area includes pixels having a first pixel structure. The second display area includes pixels having a second pixel structure different from the first pixel structure.
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公开(公告)号：US20240169897A1
公开(公告)日：2024-05-23
申请号：US18427996
申请日：2024-01-31
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：US20220415258A1
公开(公告)日：2022-12-29
申请号：US17840543
申请日：2022-06-14
Applicant: Samsung Display Co., LTD.
Inventor： Se Hyuk PARK , Jin Young ROH , Woo Mi BAE , Hae Kwan SEO , Young Ha SOHN , Jin Wook YANG
IPC: G09G3/3241 , G09G3/20
Abstract: 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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Patent Agency Ranking
公开(公告)号：US20220068727A1
公开(公告)日：2022-03-03
申请号：US17342108
申请日：2021-06-08
Applicant: Samsung Display Co., LTD.
Inventor： Hae Kwan SEO , Young Ha SOHN , Woo Mi BAE
Abstract: A method of testing a display panel includes applying a test voltage to each of data lines; applying a gate signal to each of the gate lines; measuring a sensing voltage applied to end of the light emitting unit of each of the pixels by the pixel circuit in response to the gate signal and the test voltage; and determining whether the light emitting elements are validly connected in series within the light emitting unit of each of the pixels based on the sensing voltage.
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7.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：US20230089661A1
公开(公告)日：2023-03-23
申请号：US17724695
申请日：2022-04-20
Applicant: Samsung Display Co., LTD.
Inventor： Young Ha SOHN , Se Hyuk PARK , Hae Kwan SEO , Jin Wook YANG
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 transistor including a gate electrode connected to a first scan line, a third transistor including a gate electrode connected to the first scan line, a fourth transistor including a gate electrode connected to a second scan line, a fifth transistor including a gate electrode electrically connected to a third scan line, an sixth transistor including a gate electrode electrically connected to the third scan line, a resistor electrically connected in parallel with the sixth transistor between the second node and the anode of the light emitting element, and an amplifier having a non-inverting terminal and an inverting terminal electrically connected to ends of the resistor, respectively.
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公开(公告)号：US20210065620A1
公开(公告)日：2021-03-04
申请号：US17000404
申请日：2020-08-24
Applicant: Samsung Display Co., Ltd.
Inventor： Jin Wook YANG , Yu Chol KIM , Ji Hye KIM , Young Ha SOHN , Jae Hyeon JEON
IPC: G09G3/3208
Abstract: The present disclosure relates to a display device and a method of driving the same. The display device includes a substrate, a display panel including a first display area including first pixels, a second display area including second pixels, and a third display area disposed between the first and second display areas and including third pixels, and a component disposed between the substrate and the display panel so as to overlap the second display area. Transmittance of the second display area is higher than transmittance of the first display area and transmittance of the third display area, and the third pixels are controlled such that a luminance gradually changes according to a distance from the second display area.
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