公开(公告)号：US12272309B2

公开(公告)日：2025-04-08

申请号：US18432846

申请日：2024-02-05

Applicant: Samsung Display Co., Ltd.

Inventor： Hayong Jung ,  Jung-Taek Kim ,  Joonsuk Baik ,  Jaehoon Shin ,  Wook Lee

IPC: G09G3/3233

Abstract: A sensing circuit of a display device includes a sensing line initialization circuit which substantially simultaneously initializes a first sensing line and a second sensing line in a first sub-sensing period of a sensing period, a first line selection switch which couples the first sensing line to a sensing channel in the first sub-sensing period, a second line selection switch which couples the second sensing line to the sensing channel in a second sub-sensing period of the sensing period, and the sensing channel which samples a first sensing voltage of the first sensing line in a first sampling period of the first sub-sensing period, and samples a second sensing voltage of the second sensing line in a second sampling period of the second sub-sensing period. The second sensing line is not initialized during a period from the first sampling period to the second sampling period.

公开(公告)号：US11862102B2

公开(公告)日：2024-01-02

申请号：US17883869

申请日：2022-08-09

Applicant: Samsung Display Co., Ltd.

Inventor： Jung-Taek Kim ,  Byeong-Doo Kang ,  Jae Woo Ryu ,  Joonsuk Baik ,  Sekeun Lee

IPC: G09G3/3266 ,  G09G3/3275

CPC classification number: G09G3/3266 ,  G09G3/3275 ,  G09G2300/0842 ,  G09G2310/0278 ,  G09G2310/0294 ,  G09G2310/061

Abstract: In a display device, each of pixels includes a light emitting element and a pixel circuit which is connected to the light emitting element at a first node and drives the light emitting element in response to a corresponding driving scan signal among driving scan signals during a display period. The pixel circuit is connected to a corresponding readout line among readout lines at a second node. The sensing circuit senses a potential of the first node through the corresponding readout line during a blank period, and each of frames includes the display period and the blank period. At least two driving scan signals among the driving scan signals respectively include a plurality of rewriting periods, each of which is activated during the blank period corresponding thereto, and the rewriting periods of the driving scan signals have different durations from each other.

公开(公告)号：US11721292B2

公开(公告)日：2023-08-08

申请号：US17207613

申请日：2021-03-20

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Yong-Jin Shin ,  Kyunho Kim ,  Joonsuk Baik ,  Bongim Park ,  Ukjae Jang

IPC: G09G3/3291 ,  G09G3/3208 ,  G09G3/36

CPC classification number: G09G3/3291 ,  G09G3/3208 ,  G09G3/3648 ,  G09G2320/0209 ,  G09G2320/029 ,  G09G2320/0271 ,  G09G2320/0285 ,  G09G2320/045 ,  G09G2330/10

Abstract: A display apparatus includes a display panel, a driving controller, and a data driver. The display panel is configured to display an image based on input image data. The driving controller is configured to determine whether the input image data include a display quality deteriorating pattern. The driving controller is configured to determine a first compensation value for compensating a first area disposed at a first side of a main area of the display quality deteriorating pattern and a second compensation value for compensating a second area disposed at a second side of the main area opposite to the first side of the main area, according to a position of the main area. The data driver is configured to apply a data voltage to the display panel using the first compensation value and the second compensation value.

公开(公告)号：US11538419B2

公开(公告)日：2022-12-27

申请号：US17345505

申请日：2021-06-11

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyungkeun Park ,  Jungtaek Kim ,  Kyunho Kim ,  Joonsuk Baik ,  Sekeun Lee ,  Sangsu Han

IPC: G09G3/3275 ,  G09G3/3233

Abstract: A display apparatus includes a display panel in which a plurality of pixels and a plurality of data lines and a plurality of sensing lines connected to the pixels are arranged, a first driving circuit connected to data lines and sensing lines arranged in a first pixel column and a second pixel column adjacent to the first pixel column, and a second driving circuit connected to data lines and sensing lines arranged in a third pixel column adjacent to the second pixel column and a fourth pixel column adjacent to the third pixel column.

公开(公告)号：US11302269B2

公开(公告)日：2022-04-12

申请号：US17237197

申请日：2021-04-22

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kyunho Kim ,  Sangan Kwon ,  Yong-Jin Shin ,  Joonsuk Baik

IPC: G09G3/3291 ,  H01L27/32

Abstract: An organic light emitting diode (OLED) display includes pixel rows, and a panel driver configured to drive the display panel. The panel driver includes a determining circuit configured to select one pixel row from the plurality of pixel rows, to determine load data based on input image data for the one pixel row, and to determine target mobility data corresponding to the load data, a sensing circuit configured to generate mobility sensing data corresponding to mobility values of driving transistors of a plurality of pixels included in the one pixel row by performing a mobility sensing operation on the one pixel row, and a current control circuit configured to compare the mobility sensing data and the target mobility data to generate a result, and to adjust a panel current flowing through the display panel according to the result.

公开(公告)号：US20160240140A1

公开(公告)日：2016-08-18

申请号：US14857609

申请日：2015-09-17

Applicant: Samsung Display Co., Ltd.

Inventor： Gilbae Park ,  Heesook Park ,  Joonsuk Baik ,  Jihye Eom

IPC: G09G3/32

CPC classification number: G09G3/3258 ,  G09G3/3208 ,  G09G3/3666 ,  G09G2300/043 ,  G09G2320/0223 ,  G09G2360/16

Abstract: A voltage drop compensator for a display device and the display device including the same are disclosed. In one aspect, the voltage drop compensator includes a region divider, an expected current calculator, a conversion matrix generator, a representative voltage calculator, and a compensator. The region divider is configured to divide the display panel into a plurality of regions, and the display panel includes a plurality of power lines and a plurality of pixels configured to receive a power voltage via the power lines. The expected current calculator is configured to calculate an expected current to flow in each of the regions based on input data provided to each of the regions. The conversion matrix generator configured to generate a conversion matrix based on a line resistance of each of the power lines and convert the expected current to a representative voltage provided to the regions based on the conversion matrix.

Abstract translation: 公开了一种用于显示装置的电压降补偿器和包括它的显示装置。 一方面，电压降补偿器包括区域分配器，预期电流计算器，转换矩阵发生器，代表性电压计算器和补偿器。 该区域分配器被配置为将显示面板划分为多个区域，并且显示面板包括多个电力线和被配置为经由电力线接收电力电压的多个像素。 预期电流计算器被配置为基于提供给每个区域的输入数据来计算在每个区域中流动的期望电流。 转换矩阵发生器被配置为基于每个电力线的线路电阻产生转换矩阵，并且基于转换矩阵将预期电流转换为提供给区域的代表性电压。