公开(公告)号：US20220013072A1

公开(公告)日：2022-01-13

申请号：US17346655

申请日：2021-06-14

Applicant: Samsung Display Co., Ltd. ,  SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION

Inventor： JEONKYOO KIM ,  SOO YEON LEE ,  MANSEUNG CHO ,  KYEONG SOO KANG ,  JUNHEE MOON ,  BONGHYUN YOU ,  JIN KYU LEE

IPC: G09G3/3291 ,  G09G3/3266

Abstract: A display device includes a sensing circuit and a controller which selects a pixel row in a frame period. A vertical blank period of the frame period includes a sensing time in which the sensing circuit performs a sensing operation for the selected pixel row. The sensing circuit measures a first source voltage of a driving transistor of a pixel in the selected pixel row at a first time point of the sensing time, and measures a second source voltage of the driving transistor at a second time point of the sensing time. The controller calculates a threshold voltage parameter and a mobility parameter based on the first and second source voltages, predicts a saturated source voltage of the driving transistor based on the threshold voltage parameter and the mobility parameter, and calculates a threshold voltage of the driving transistor based on the saturated source voltage.

公开(公告)号：US20230162702A1

公开(公告)日：2023-05-25

申请号：US18094430

申请日：2023-01-09

Applicant: Samsung Display Co., Ltd.

Inventor： JEONKYOO KIM ,  CHAEHEE PARK ,  DEOKHWA WOO ,  MYUNGWOO LEE ,  MANSEUNG CHO

IPC: G09G5/10 ,  G09G3/20 ,  G06V40/16 ,  H04N23/50

CPC classification number: G09G5/10 ,  G09G3/2003 ,  G06V40/172 ,  H04N23/50 ,  G09G2320/0673

Abstract: A display apparatus includes a display panel, a first coordinate calculator, a second coordinate calculator and a gamma setter. The display panel includes a first display area and a second display area. The first coordinate calculator is configured to calculate color coordinates of first image data of the first display area. The second coordinate calculator is configured to calculate color coordinates of second image data of the second display area. The gamma setter is configured to adjust luminance of the first image data, the color coordinates of the first image data, luminance of the second image data and the color coordinates of the second image data.

公开(公告)号：US20220375416A1

公开(公告)日：2022-11-24

申请号：US17874680

申请日：2022-07-27

Applicant: Samsung Display Co., Ltd. ,  SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION

Inventor： JEONKYOO KIM ,  SOO YEON LEE ,  MANSEUNG CHO ,  KYEONG SOO KANG ,  JUNHEE MOON ,  BONGHYUN YOU ,  JIN KYU LEE

IPC: G09G3/3291 ,  G09G3/3266

Abstract: A display device includes a sensing circuit and a controller which selects a pixel row in a frame period. A vertical blank period of the frame period includes a sensing time in which the sensing circuit performs a sensing operation for the selected pixel row. The sensing circuit measures a first source voltage of a driving transistor of a pixel in the selected pixel row at a first time point of the sensing time, and measures a second source voltage of the driving transistor at a second time point of the sensing time. The controller calculates a threshold voltage parameter and a mobility parameter based on the first and second source voltages, predicts a saturated source voltage of the driving transistor based on the threshold voltage parameter and the mobility parameter, and calculates a threshold voltage of the driving transistor based on the saturated source voltage.

公开(公告)号：US20230260465A1

公开(公告)日：2023-08-17

申请号：US18308070

申请日：2023-04-27

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： DEOKHWA WOO ,  JEONKYOO KIM ,  KUK-HWAN AHN ,  MYUNGWOO LEE ,  BITNA LEE ,  MANSEUNG CHO

IPC: G09G3/3275 ,  H10K59/65 ,  H10K59/121

CPC classification number: G09G3/3275 ,  H10K59/65 ,  H10K59/121 ,  G09G2300/0842 ,  G09G2320/0673 ,  G09G2320/0646 ,  G09G2360/16 ,  G09G2300/0452

Abstract: A display device includes a display panel with a first display area having a first light transmittance and a second display area having a second light transmittance higher than the first light transmittance. The display device also includes a driving controller which divides an image signal into a first image signal corresponding to a first pixel unit in the first display area and a second image signal corresponding to a second pixel unit and a non-pixel unit adjacent to the second pixel unit. The display controller calculates the second image signal with a preset kernel matrix, and outputs a data signal corresponding to the second pixel unit in the second display area.

公开(公告)号：US20230252947A1

公开(公告)日：2023-08-10

申请号：US18135152

申请日：2023-04-15

Applicant: Samsung Display Co., Ltd. ,  SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION

Inventor： JEONKYOO KIM ,  SOO YEON LEE ,  MANSEUNG CHO ,  KYEONG SOO KANG ,  JUNHEE MOON ,  BONGHYUN YOU ,  JIN KYU LEE

IPC: G09G3/3291 ,  G09G3/3266

CPC classification number: G09G3/3291 ,  G09G3/3266 ,  G09G2310/08

Abstract: A display device includes a sensing circuit and a controller which selects a pixel row in a frame period. A vertical blank period of the frame period includes a sensing time in which the sensing circuit performs a sensing operation for the selected pixel row. The sensing circuit measures a first source voltage of a driving transistor of a pixel in the selected pixel row at a first time point of the sensing time, and measures a second source voltage of the driving transistor at a second time point of the sensing time. The controller calculates a threshold voltage parameter and a mobility parameter based on the first and second source voltages, predicts a saturated source voltage of the driving transistor based on the threshold voltage parameter and the mobility parameter, and calculates a threshold voltage of the driving transistor based on the saturated source voltage.

公开(公告)号：US20210343258A1

公开(公告)日：2021-11-04

申请号：US17195696

申请日：2021-03-09

Applicant: Samsung Display Co., Ltd.

Inventor： JEONKYOO KIM ,  CHAEHEE PARK ,  DEOKHWA WOO ,  MYUNGWOO LEE ,  MANSEUNG CHO

IPC: G09G5/10 ,  G09G3/20 ,  G06K9/00 ,  H04N5/225

Abstract: A display apparatus includes a display panel, a first coordinate calculator, a second coordinate calculator and a gamma setter. The display panel includes a first display area and a second display area. The first coordinate calculator is configured to calculate color coordinates of first image data of the first display area. The second coordinate calculator is configured to calculate color coordinates of second image data of the second display area. The gamma setter is configured to adjust luminance of the first image data, the color coordinates of the first image data, luminance of the second image data and the color coordinates of the second image data.