公开(公告)号：US11915659B2

公开(公告)日：2024-02-27

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 ,  G09G3/3291 ,  G09G3/3233 ,  G09G3/3241

CPC classification number: G09G3/3275 ,  G09G3/3291 ,  G09G3/3233 ,  G09G3/3241 ,  G09G2300/0842 ,  G09G2310/0297 ,  G09G2320/0242 ,  G09G2320/0252 ,  G09G2330/021

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：US12051377B2

公开(公告)日：2024-07-30

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：US11887531B2

公开(公告)日：2024-01-30

申请号：US17943624

申请日：2022-09-13

Applicant: Samsung Display Co., Ltd.

Inventor： Jinpil Kim ,  Kanghee Lee ,  Joon-Chul Goh

IPC: G09G3/32 ,  G09G3/3233

CPC classification number: G09G3/32 ,  G09G3/3233 ,  G09G2320/0233 ,  G09G2320/0257 ,  G09G2320/046 ,  G09G2320/103

Abstract: A display device includes: a display panel, which displays an image; a panel driver, which drives the display panel; and a driving controller, which controls a drive of the panel driver. The driving controller includes a compensation determination block and a data compensation block. The compensation determination block is activated after a still image is displayed for a predetermined time or more and generates a compensation value based on a final afterimage component calculated using an afterimage algorithm obtained by a combination of a first afterimage calculation equation and a second afterimage calculation equation. The data compensation block receives an image signal with respect to a target image and reflects the compensation value to the image signal to generate a compensation image signal.

公开(公告)号：US11663968B2

公开(公告)日：2023-05-30

申请号：US17463253

申请日：2021-08-31

Applicant: Samsung Display Co., Ltd.

Inventor： Ara Jo ,  Woo-Chul Kim ,  Inbok Song ,  Kanghee Lee ,  Deok Jun Choi

IPC: G06F3/041 ,  G09G3/3225 ,  H01L27/32 ,  G06F3/044

CPC classification number: G09G3/3225 ,  G06F3/0412 ,  G06F3/0446 ,  H01L27/323 ,  G09G2330/028

Abstract: A display device includes a display panel, an input sensor disposed on the display panel, a panel driving circuit which drives the display panel and generates a first driving voltage, and a readout circuit which controls the input sensor. The readout circuit receives the first driving voltage from the panel driving circuit and outputs transmit signals to control the input sensor.

公开(公告)号：US10480062B2

公开(公告)日：2019-11-19

申请号：US15395274

申请日：2016-12-30

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Seungho Choi ,  Haeyoung Yoo ,  Kanghee Lee

IPC: H01J37/34 ,  C23C14/35 ,  H01J37/32 ,  H01F7/02 ,  H01F7/20

Abstract: A sputtering apparatus includes a substrate holder, a first counterpart target area, a second counterpart target area, and a power supply. The first counterpart target area includes a first target and at least one first magnetic part and operates to form a magnetic field in a first plasma area adjacent to the first target. The second counterpart target area includes a second target and at least one second magnetic part and operates to form a magnetic field in a second plasma area adjacent to the second target. The power supply supplies a first power voltage to the first and second targets. A control anode faces the substrate holder in a second direction, with the first and second plasma areas therebetween, and receives a control voltage greater than the first power voltage.

公开(公告)号：US12094381B2

公开(公告)日：2024-09-17

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

CPC classification number: G09G3/20 ,  G09G2310/0267 ,  G09G2320/045

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.