公开(公告)号：US11967604B2

公开(公告)日：2024-04-23

申请号：US17750687

申请日：2022-05-23

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dae Gwang Jang

IPC: H01L27/146 ,  G06V40/13 ,  H04N25/70

CPC classification number: H01L27/14678 ,  H01L27/14609 ,  H01L27/14612 ,  H01L27/14636 ,  H04N25/70 ,  G06V40/1318

Abstract: An image sensor includes a sensor pixel. The sensor pixel includes a first transistor coupled between a first power source and a first node, where the first transistor is turned on in response to a first control signal, a light-sensing element coupled between the first node and a second power source, where the light-sensing element generates photocharges in response to incident light, a storage capacitor coupled in parallel to the light-sensing element between the first node and the second power source, and an amplifier including a plurality of transistors coupled in series between the first power source and an output line, where the amplifier outputs a sensing signal corresponding to a voltage of the first node in response to a first driving signal.

公开(公告)号：US11929013B2

公开(公告)日：2024-03-12

申请号：US17740951

申请日：2022-05-10

Applicant: Samsung Display Co., LTD.

Inventor： Dae Gwang Jang ,  Jun Pyo Lee ,  Won Sik Oh ,  Jong Jae Lee

IPC: H10K50/00 ,  C09K11/08 ,  G09G3/14 ,  G09G3/22 ,  G09G3/32 ,  H05B45/20 ,  H05B45/44 ,  H10K59/131

CPC classification number: G09G3/32 ,  G09G2300/0426 ,  G09G2310/0275 ,  G09G2310/08 ,  G09G2320/0233

Abstract: A display device according to an embodiment includes a pixel including a light emitting unit, a data driver that supplies a data voltage to the pixel, and a luminance corrector that corrects image data and generates compensation data corresponding to the data voltage. The light emitting unit includes at least one sub element group. The at least one sub element group includes light emitting elements. The luminance corrector extracts a deterioration value of the at least one sub element group and calculates a luminance value of the at least one sub element group according to a number of the light emitting elements included in the at least one sub element group.

公开(公告)号：US11501698B2

公开(公告)日：2022-11-15

申请号：US17444165

申请日：2021-07-30

Applicant: Samsung Display Co., Ltd.

Inventor： Eui Myeong Cho ,  Ho Cheol Kang ,  Seok Young Yoon ,  Dae Gwang Jang

IPC: G09G3/32

Abstract: A display device includes a pixel. The pixel includes an emission unit and a pixel circuit. The pixel circuit to provide a first driving current to the emission unit in a first current flowing direction in a first mode, and to provide a second driving current to the emission unit in a second current flowing direction different from the first current flowing direction in a second mode. The emission unit includes a first electrode and a second electrode spaced from each other, a first light emitting element connected between the first electrode and the second electrode in the first current flowing direction, and a second light emitting element connected between the first electrode and the second electrode in the second current flowing direction.

公开(公告)号：US11830417B2

公开(公告)日：2023-11-28

申请号：US17965576

申请日：2022-10-13

Applicant: Samsung Display Co., LTD.

Inventor： Tae Gon Im ,  Jong Jae Lee ,  Dae Gwang Jang

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/027 ,  G09G2310/0262 ,  G09G2310/0286 ,  G09G2310/0291 ,  G09G2310/08

Abstract: A display device includes: a pixel unit including a plurality of pixels; a data driver configured to supply a data voltage to the pixels through data lines based on a source output enable signal; and a reference voltage controller configured to supply a reference voltage to the pixels through reference voltage lines, wherein each of the pixels includes a light emitting element between a first power source line and a second power source line, and wherein the reference voltage controller is configured to compensate for the reference voltage based on the source output enable signal, and to supply a compensated reference voltage to an anode electrode of the light emitting element.

公开(公告)号：US11790857B2

公开(公告)日：2023-10-17

申请号：US17741766

申请日：2022-05-11

Applicant: Samsung Display Co., LTD.

Inventor： Soo Yeon Kim ,  Tae Gon Im ,  Jong Jae Lee ,  Dae Gwang Jang

IPC: G09G3/3275

CPC classification number: G09G3/3275 ,  G09G2310/0291 ,  G09G2310/0297 ,  G09G2310/08

Abstract: A display device includes a display panel including data lines and pixels electrically connected to the data lines. The data driver supplies data signals to the data lines. The data driver includes: a first output buffer electrically connected to a first data line of the data lines, the first output buffer outputting a first data signal to the first data line; and a first comparator electrically connected to an output terminal of the first output buffer, the first comparator comparing a first slew rate of the first data signal with a first reference slew rate.

公开(公告)号：US12008948B2

公开(公告)日：2024-06-11

申请号：US17739807

申请日：2022-05-09

Applicant: Samsung Display Co., LTD.

Inventor： Soo Yeon Kim ,  Tae Gon Im ,  Jong Jae Lee ,  Dae Gwang Jang

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0842 ,  G09G2320/0233 ,  G09G2320/0295 ,  G09G2330/028

Abstract: A display device includes pixels; a sensing block generating first sensing data during a first sensing period, and generating second sensing data and third sensing data during a second sensing period; and a timing controller compensating first image data with second image data based on the first sensing data, the second sensing data, and the third sensing data. The sensing block generates the first sensing data corresponding to an initial channel voltage applied to each of sensing channels and at least one auxiliary sensing channel during the first sensing period, generates the second sensing data by sensing characteristic information of the pixels corresponding to an initialization voltage applied to the pixels during the second sensing period, and generates the third sensing data corresponding to a reference voltage applied to the at least one auxiliary sensing channel during the second sensing period.

公开(公告)号：US11715414B2

公开(公告)日：2023-08-01

申请号：US17731125

申请日：2022-04-27

Applicant: Samsung Display Co., LTD.

Inventor： Soo Yeon Kim ,  Dae Gwang Jang

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2330/021

Abstract: A display device includes: a display panel including pixels, first to N-th gate integrated circuits (GICs) embedded in gate circuit boards and configured to output gate signals to the pixels, a first gate input power line and a first gate input signal line formed to pass through the gate circuit boards and connected to the GICs, a first feedback power line connected to the first gate input power line, a power supply configured to output a first gate input voltage to the first gate input power line, a first compensator configured to output a first compensation signal in response to a first feedback voltage from the first feedback power line, and a controller configured to output a first gate control signal to the first gate input signal line and output a power control signal to the power supply in response to the first compensation signal.

公开(公告)号：US11468846B2

公开(公告)日：2022-10-11

申请号：US17141640

申请日：2021-01-05

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dae Gwang Jang ,  Hui Nam ,  Ha Neul Kim

IPC: G09G3/3275 ,  G09G3/3233 ,  G09G3/32

Abstract: A display device includes: a pixel unit including a pixel connected to a data line; a data driver which supplies a sensing reference voltage to the data line during a sensing period, and supplies a data signal to the data line during a display period; and a sensing unit which receives a sensing current corresponding to the sensing reference voltage during the sensing period, and generates correction data based on the supplied sensing current. The sensing unit includes a current integrator which outputs a sensing voltage based on the sensing current input thereto through a first input terminal and based on the sensing reference voltage input thereto through a second input terminal.

公开(公告)号：US20220122524A1

公开(公告)日：2022-04-21

申请号：US17444165

申请日：2021-07-30

Applicant: Samsung Display Co., Ltd.

Inventor： Eui Myeong Cho ,  Ho Cheol Kang ,  Seok Young Yoon ,  Dae Gwang Jang

IPC: G09G3/32

Abstract: A display device includes a pixel. The pixel includes an emission unit and a pixel circuit. The pixel circuit to provide a first driving current to the emission unit in a first current flowing direction in a first mode, and to provide a second driving current to the emission unit in a second current flowing direction different from the first current flowing direction in a second mode. The emission unit includes a first electrode and a second electrode spaced from each other, a first light emitting element connected between the first electrode and the second electrode in the first current flowing direction, and a second light emitting element connected between the first electrode and the second electrode in the second current flowing direction.

公开(公告)号：US09799282B2

公开(公告)日：2017-10-24

申请号：US14294918

申请日：2014-06-03

Applicant: Samsung Display Co. Ltd.

Inventor： Sang Ik Lee ,  Young Soo Yoon ,  Joon Chul Goh ,  In Jae Hwang ,  Byung Sun Kim ,  Dae Gwang Jang ,  Seok Ha Hong

IPC: G09G3/36

CPC classification number: G09G3/3614 ,  G09G3/3655 ,  G09G3/3677 ,  G09G2310/0205 ,  G09G2320/0209 ,  G09G2320/0219 ,  G09G2320/0233

Abstract: A liquid crystal display device includes a plurality of pixels arranged substantially in a matrix form, where a part of the plurality of pixels defines a pixel column block, a first scan signal is simultaneously applied to an n-th row pixel and an (n+2)-th row pixel of the pixel column block, a second scan signal, which is applied prior to the first scan signal, is simultaneously applied to an (n+1)-th row pixel and an (n+3)-th row pixel of the pixel column block, a first data voltage is applied to the n-th row pixel and the (n+1)-th row pixel, a second data voltage having a polarity different from a polarity of the first data voltage is applied to the (n+2)-th row pixel and the (n+3)-th row pixel, and the polarities of the first data voltage and the second data voltage are inverted on a frame-by-frame basis.