公开(公告)号：US09570022B2

公开(公告)日：2017-02-14

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: G02F1/1343 ,  G02F1/13357 ,  G09G3/36 ,  F21V8/00

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：US12183766B2

公开(公告)日：2024-12-31

申请号：US18370476

申请日：2023-09-20

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dae Gwang Jang

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

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：US11847959B2

公开(公告)日：2023-12-19

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

CPC classification number: G09G3/32 ,  G09G2300/043 ,  G09G2300/0819 ,  G09G2310/0251 ,  G09G2310/0278 ,  G09G2320/029 ,  G09G2320/045

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：US11645964B2

公开(公告)日：2023-05-09

申请号：US17480676

申请日：2021-09-21

Applicant: Samsung Display Co., LTD.

Inventor： Dae Gwang Jang

IPC: G09G3/32 ,  G09G3/20

CPC classification number: G09G3/2051 ,  G09G3/32 ,  G09G2300/0842 ,  G09G2310/027 ,  G09G2310/0267 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/048 ,  G09G2360/16

Abstract: A display device includes a display panel. The display panel includes a pixel including a light emitting element. A compensator calculates a current stress of the light emitting element based on input grayscale values sequentially provided for the pixel during a specific time and generates a first output grayscale value by compensating for a first input grayscale value provided at a current time point based on the current stress. A driver generates a data signal based on the first output grayscale value and supplies the data signal to the pixel. The compensator sets the first output grayscale value to be less than the first input grayscale value in case that the input grayscale values are greater than a reference grayscale value.

公开(公告)号：US11374052B2

公开(公告)日：2022-06-28

申请号：US16799049

申请日：2020-02-24

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dae Gwang Jang

IPC: H01L27/146 ,  H04N5/369 ,  G06V40/13

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：US11282427B2

公开(公告)日：2022-03-22

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.

公开(公告)号：US11074845B2

公开(公告)日：2021-07-27

申请号：US16846132

申请日：2020-04-10

Applicant: Samsung Display Co., Ltd.

Inventor： Dae Gwang Jang

IPC: G09G3/20

Abstract: A display device includes a first amplifier and second data amplifier connected to a first data line and second data line, to a first high voltage power source and second high voltage power source and to a first low voltage power source and second low voltage power source, respectively, a first pixel and second pixel each having a data input terminal connected to the first data line and second data line, respectively. The first high voltage power source and the first low voltage power source determine an upper limit and a lower limit of an output voltage of the first amplifier, respectively, the second high voltage power source and the second low voltage power source determine an upper limit and a lower limit of an output voltage of the second amplifier, respectively, and the first low voltage power source and second low voltage power source are independent power sources.