公开(公告)号：US20220415261A1

公开(公告)日：2022-12-29

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

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：US20220383802A1

公开(公告)日：2022-12-01

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

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：US20230055768A1

公开(公告)日：2023-02-23

申请号：US17890097

申请日：2022-08-17

Applicant: Samsung Display Co., LTD.

Inventor： Tae Gon IM ,  Soo Yeon KIM ,  Jong Jae LEE ,  Dae Gwang JANG

IPC: G09G3/3233

Abstract: A display device includes: a plurality of pixels coupled to data lines and sensing lines; a data driver configured to supply one of an image data signal and a sensing data signal to the data lines; a voltage supply configured to supply an initialization voltage to the pixels through the sensing lines; and a sensing circuit configured to receive a sensing value from at least one of the pixels through the sensing lines, and compare the sensing value with a sensing reference value to generate a sensing voltage control signal to control at least one of the sensing data signal or the initialization voltage.

公开(公告)号：US20220285421A1

公开(公告)日：2022-09-08

申请号：US17750687

申请日：2022-05-23

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dae Gwang JANG

IPC: H01L27/146 ,  H04N5/369

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：US20230121344A1

公开(公告)日：2023-04-20

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

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：US20230057284A1

公开(公告)日：2023-02-23

申请号：US17751122

申请日：2022-05-23

Applicant: Samsung Display Co., LTD.

Inventor： Dae Gwang JANG ,  Soo Yeon KIM

IPC: G09G3/32

Abstract: A display panel includes pixels connected to first and second data lines and a readout line. The data driver supplies data signals to the first and second data lines and supplies an initialization voltage to the readout line. Each of the pixels includes at least one light emitting element and a driving transistor. The driving transistor controls an amount of current based on a difference between a corresponding data signal among the data signals and an initialization voltage. In a sensing mode, the data driver supplies a test voltage to the first data line and a first off voltage to the second data line in a first period and supplies a second off voltage to the second data line in a second period after the first period. The second off voltage is different from the test voltage and the first off voltage.

公开(公告)号：US20210366406A1

公开(公告)日：2021-11-25

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

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：US20150070608A1

公开(公告)日：2015-03-12

申请号：US14209650

申请日：2014-03-13

Applicant: Samsung Display Co. Ltd.

Inventor： Young Soo YOON ,  Joon Chul GOH ,  Jung Taek KIM ,  Kyoung Ho LIM ,  Dae Gwang JANG

IPC: G02F1/1335

CPC classification number: G09G3/3655 ,  G02B6/0036 ,  G02B6/0061

Abstract: A liquid crystal display device includes a liquid crystal panel of a normally black type which receives a plurality of scan signals and a common voltage having a voltage level which periodically varies, and a backlight unit which provides backlight to the liquid crystal panel, where the plurality of scan signals sequentially has a scan-on voltage along a first direction, and the backlight has a luminance which is increased or decreased along the first direction.

Abstract translation: 一种液晶显示装置，包括：常规黑色液晶面板，其接收多个扫描信号和具有周期性变化的电压电平的公共电压;以及背光单元，其向所述液晶面板提供背光，其中所述多个 的扫描信号依次具有沿着第一方向的扫描电压，并且背光具有沿着第一方向增加或减小的亮度。

公开(公告)号：US20230013528A1

公开(公告)日：2023-01-19

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: G09G3/32

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：US20210248943A1

公开(公告)日：2021-08-12

申请号：US17007543

申请日：2020-08-31

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ha Neul KIM ,  Ho Cheol KANG ,  Dae Gwang JANG ,  Young Soo HWANG

IPC: G09G3/20

Abstract: A display device includes pixels coupled to scan lines, control lines, data lines, and sensing lines, a scan driver for supplying a scan signal to the scan lines and supplying a control signal to the control lines, a data driver for supplying one of an image data signal and a sensing data signal to the data lines, and a sensing circuit including an analog-digital converter (“ADC”) which converts a sensing value supplied through the sensing lines into a current code in a digital form, the sensing circuit correcting the current code by reflecting a conversion characteristic of the ADC, the sensing circuit sensing characteristics of the driving transistor based on the corrected current code.