公开(公告)号：US20230075995A1

公开(公告)日：2023-03-09

申请号：US17861644

申请日：2022-07-11

Applicant: Samsung Display Co., Ltd.

Inventor： KANGHEE LEE ,  HYEONMIN KIM ,  JUNGYU LEE

IPC: G09G3/20 ,  G09G3/3233 ,  G09G3/00

Abstract: A method of correcting gamma includes generating a representative panel model by performing a deep learning based on luminance factors and a representative display panel, generating a panel model by performing a transfer learning based on the representative panel model and a display panel, and determining a grayscale voltage for the display panel based on the panel model.

公开(公告)号：US20250124851A1

公开(公告)日：2025-04-17

申请号：US18650399

申请日：2024-04-30

Applicant: Samsung Display Co., LTD.

Inventor： SEOKHA HONG ,  HYUNGJIN KIM ,  JONG-WOONG PARK ,  KANGHEE LEE ,  KYUNGSU LEE

IPC: G09G3/32

Abstract: A display device includes: a display panel, and a driving controller to receive an image signal and a control signal, drive the first display region of the display panel at a first driving frequency, and drive the second display region at a second driving frequency. The driving controller counts a first stress time of each of the first horizontal lines, and calculates a first operating time of each of the first horizontal lines based on the first stress time and the first driving frequency, counts a second stress time of each of the second horizontal lines and calculates a second operating time of each of the second horizontal lines based on the second stress time and the second driving frequency, and outputs an image data signal obtained by compensating for stress for the image signal based on the image signal, the first operating time, and the second operating time.

公开(公告)号：US20240169894A1

公开(公告)日：2024-05-23

申请号：US18236011

申请日：2023-08-21

Applicant: Samsung Display Co., LTD.

Inventor： BYUNG KI CHUN ,  SUN-KOO KANG ,  MYEONGBIN LIM ,  MIN-SEOK BAE ,  KANGHEE LEE

IPC: G09G3/32 ,  G09G3/3291

CPC classification number: G09G3/32 ,  G09G3/3291 ,  G09G2310/0275 ,  G09G2310/0291 ,  G09G2320/0276 ,  G09G2330/021 ,  G09G2330/028

Abstract: A data driving circuit includes: a reference voltage generator that receives a data control signal and generates a gamma reference voltage and a test reference voltage, a data driving unit that outputs a data signal for a pixel based on the gamma reference voltage, and an output circuit that outputs a test data voltage for a dummy pixel based on the test reference voltage.

公开(公告)号：US20230055288A1

公开(公告)日：2023-02-23

申请号：US17871379

申请日：2022-07-22

Applicant: Samsung Display Co., Ltd.

Inventor： KANGHEE LEE ,  JOON-CHUL GOH ,  WEONJUN CHOE

IPC: G09G3/3275

Abstract: A display device includes a display panel including a pixel, a driving controller that receives an image signal and outputs an image data signal in which the image signal is compensated, and a data driving circuit that provides the pixel with a data signal corresponding to the image data signal. The driving controller includes a memory, a hysteresis calculator that calculates a current hysteresis state value of a current frame based on the image signal and a previous hysteresis state value of a previous frame, which is stored in the memory, and stores the current hysteresis state value in the memory, and a compensator that calculates a compensation value based on the image signal and the previous hysteresis state value stored in the memory and compensates for the image signal depending on the compensation value to output the image data signal.

公开(公告)号：US20250157402A1

公开(公告)日：2025-05-15

申请号：US18928365

申请日：2024-10-28

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： MIN-SEOK BAE ,  KANGHEE LEE

IPC: G09G3/3233

Abstract: A display apparatus includes a display panel, a driving controller and a data driver. The display panel includes a low deterioration region and a high deterioration region. The driving controller generates a data signal based on input image data. The data driver converts the data signal to a data voltage and outputs the data voltage to the display panel. The driving controller includes a deterioration compensator which generates the data signal based on a deterioration ratio. The deterioration ratios may be a ratio between a sensing current of the low deterioration region and a sensing current of the high deterioration region.

公开(公告)号：US20250104585A1

公开(公告)日：2025-03-27

申请号：US18829283

申请日：2024-09-10

Applicant: Samsung Display Co., Ltd.

Inventor： HYUNGJIN KIM ,  MOON-CHUL PARK ,  YOONSIK PARK ,  KANGHEE LEE ,  KYUNGSU LEE ,  SEOKHA HONG

IPC: G09G3/00 ,  G06F1/16

Abstract: A foldable display device is disclosed that includes a flexible display panel, an optical module, and a deterioration compensator. The flexible display panel includes a folding line, a first display area disposed on a first side of the folding line, and a second display area disposed on a second side of the folding line to display a test image. The optical module is disposed in the first display area and is configured to sense a display luminance of the test image. The deterioration compensator is configured to perform a deterioration compensating operation of the display luminance by a luminance compensation value when the display luminance is less than a target luminance, without performing the deterioration compensating operation when the display luminance is greater than the target luminance.

公开(公告)号：US20240395184A1

公开(公告)日：2024-11-28

申请号：US18794004

申请日：2024-08-05

Applicant: Samsung Display Co., Ltd.

Inventor： JUNGYU LEE ,  JOON-CHUL GOH ,  KANGHEE LEE

IPC: G09G3/20

Abstract: Provided is a display panel which may include a pixel array including a plurality of pixels connected to scan lines and data lines, a photonic synapse block including a plurality of photonic synapse elements, and a neuron block including a plurality of neuron elements electrically connected to the plurality of photonic synapse elements.

公开(公告)号：US20240260439A1

公开(公告)日：2024-08-01

申请号：US18506642

申请日：2023-11-10

Applicant: Samsung Display Co., LTD.

Inventor： MIN-SEOK BAE ,  KANGHEE LEE ,  CHANGBIN IM ,  BYUNG KI CHUN

IPC: H10K59/88 ,  G09G3/00 ,  G09G3/3233 ,  H10K59/131

CPC classification number: H10K59/88 ,  G09G3/006 ,  G09G3/3233 ,  H10K59/131 ,  G09G2300/0426 ,  G09G2300/0439 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2310/08 ,  G09G2320/045 ,  G09G2320/048 ,  G09G2330/12

Abstract: A display device includes: pixels in an active area, each of the pixels being electrically connected to a corresponding data line and a corresponding scan line; and a dummy pixel adjacent to at least one of the pixels, and electrically connected to the corresponding scan line and a sensing line. Each of the pixels and the dummy pixel includes: a light emitting element including a first electrode electrically connected to a first node, a second electrode, and an emission layer between the first electrode and the second electrode; a first transistor; a second transistor; a third transistor; a first capacitor; a fourth transistor; a fifth transistor; and a second capacitor. The dummy pixel further includes a sensing transistor electrically connected between the sensing line and the first node.

公开(公告)号：US20240105127A1

公开(公告)日：2024-03-28

申请号：US18354241

申请日：2023-07-18

Applicant: Samsung Display Co., LTD.

Inventor： JONG-WOONG PARK ,  WONJU SHIN ,  BYUNG KI CHUN ,  KANGHEE LEE

IPC: G09G3/3291 ,  G09G3/20

CPC classification number: G09G3/3291 ,  G09G3/2007 ,  G09G3/2096 ,  G09G2320/045 ,  G09G2330/021 ,  G09G2330/028 ,  G09G2330/12 ,  G09G2360/12 ,  G09G2360/16

Abstract: A display apparatus includes a display panel, a driving controller, and a data driver. The driving controller generates a data signal based on input image data. The data driver converts the data signal into a data voltage and outputs the data voltage to the display panel. The driving controller includes a deterioration compensator. The deterioration compensator generates an alpha value based on a ratio between a sensed current read from a portion of the display panel applied with a high power voltage or a portion of the display panel applied with a low power voltage and a predicted current calculated from the input image data and generates the data signal using the input image data, a stress value of a pixel, and the alpha value.

公开(公告)号：US20230117423A1

公开(公告)日：2023-04-20

申请号：US17828305

申请日：2022-05-31

Applicant: Samsung Display Co., Ltd.

Inventor： JUNGYU LEE ,  JOON-CHUL GOH ,  KANGHEE LEE

IPC: G09G3/20

Abstract: Provided is a display panel which may include a pixel array including a plurality of pixels connected to scan lines and data lines, a photonic synapse block including a plurality of photonic synapse elements, and a neuron block including a plurality of neuron elements electrically connected to the plurality of photonic synapse elements.