公开(公告)号：US11315524B2

公开(公告)日：2022-04-26

申请号：US17186712

申请日：2021-02-26

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Byoung Kwan An ,  Sang Myeon Han ,  Joon Hyeok Jeon

IPC: G09G5/10 ,  G09G3/20 ,  G09G5/393 ,  G09G3/3275

Abstract: A method for restoring deterioration data of a display device, includes: reading deterioration data from a first storage unit; determining whether the deterioration data is abnormal by comparing a first deterioration value of a first block with adjacent deterioration values of adjacent blocks adjacent to the first block; restoring the deterioration data based on a look-up table in which a luminance retention rate according to a degree of deterioration is set and sensing data provided from a sensing unit, when the deterioration data is determined to be abnormal; and generating second image data by compensating for first image data based on the restored deterioration data. The display device includes blocks each including a pixel, the blocks include the first and adjacent blocks, the deterioration data includes deterioration values each representing a degree of deterioration of each of the blocks, and the deterioration values include the first and adjacent deterioration values.

公开(公告)号：US20200058251A1

公开(公告)日：2020-02-20

申请号：US16412663

申请日：2019-05-15

Applicant: Samsung Display Co., Ltd.

Inventor： Jae Hoon Lee ,  Dong Hak Pyo ,  Seung Ho Park ,  Kyoung Ho Lim ,  Sang Myeon Han

IPC: G09G3/3225 ,  G09G3/36

Abstract: A display device and a method of driving the same. The display device includes a display panel including a plurality of pixels, a degradation compensator configured to output compensation data based on age values of the plurality of pixels and an input grayscale value of input image data, a scan driver configured to supply a scan signal to the display panel, and a data driver configured to supply a data signal corresponding to the compensation data to the display panel. The degradation compensator includes a first compensation unit configured to generate a first compensation grayscale value with reference to the input grayscale value and a first age value, and a second compensation unit configured to generate a second compensation grayscale value with reference to the first compensation grayscale value and the first age value.

公开(公告)号：US20150348465A1

公开(公告)日：2015-12-03

申请号：US14826077

申请日：2015-08-13

Applicant: Samsung Display Co., Ltd.

Inventor： Si-Duk Sung ,  Sang Myeon Han

IPC: G09G3/32

CPC classification number: G09G3/3258 ,  G09G3/3233 ,  G09G2320/0223 ,  G09G2330/02 ,  G09G2330/025

Abstract: A display device includes: a display panel for displaying frames during an elapse of time; and an emission driver for providing first and second emission power sources to the display panel, wherein: each of the frames comprises a first light emitting period, a light non-emitting period and a second light emitting period according to a time sequence, a difference value between the first and second emission power sources is substantially equal to or greater than a reference value during the first and second light emitting periods, and is less than the reference value during the light non-emitting period, and the difference value between the first and second emission power sources decreases over an elapse of time during the first light emitting period, and increases over an elapse of time during the second light emitting period.

Abstract translation: 显示装置包括：显示面板，用于在经过时间期间显示帧; 以及用于向显示面板提供第一和第二发射电源的发射驱动器，其中：每个帧包括根据时间序列的第一发光周期，不发光周期和第二发光周期，差异 在第一和第二发光周期期间，第一和第二发光功率源之间的值基本上等于或大于参考值，并且小于光不发光时段期间的参考值，并且第一 并且第二发光电源在第一发光时段期间经过时间减少，并且在第二发光周期期间经过时间而增加。

公开(公告)号：US12094401B2

公开(公告)日：2024-09-17

申请号：US18495192

申请日：2023-10-26

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Byoung Kwan An ,  Seung Ho Park ,  Sang Myeon Han

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2320/0276 ,  G09G2320/041 ,  G09G2330/021

Abstract: A display device includes: pixels that receive data voltages corresponding to output grayscales; a sensing circuit that senses electrical states of the pixels to provide sensing information; and a grayscale converter that generates the output grayscales with respect to the pixels based on input grayscales and the sensing information, wherein the grayscale converter predicts a temperature of at least one of the pixels based on the sensing information, calculates a current control amount for the at least one of the pixels based on the predicted temperature and the input grayscales, and calculates the output grayscales for the at least one of the pixels based on the current control amount and the input grayscales.

公开(公告)号：US20210210000A1

公开(公告)日：2021-07-08

申请号：US17017259

申请日：2020-09-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jae Hoon Lee ,  Sang Myeon Han ,  Jong Wook Kim ,  Byoung Kwan An

IPC: G09G3/32

Abstract: There are provided a display device, driving method and sensing unit thereof, where a display device includes a display unit having pixels connected to signal lines; a sensing unit including at least one current sensor connected to at least one of the signal lines; and a compensator connected between the sensing unit and the display unit, wherein the compensator is configured to: calculate degradation weights for positions of the pixels, based on a sensing current measured by the sensing unit and a predetermined reference current value, update degradation accumulated values for the positions whenever the sensing current is measured, by accumulating degradation degrees in which the degradation weights are reflected, generate compensated grayscale values by compensating input grayscale values based on the updated degradation accumulated values, and output the compensated grayscale values to the pixels.

公开(公告)号：US11056053B2

公开(公告)日：2021-07-06

申请号：US16412663

申请日：2019-05-15

Applicant: Samsung Display Co., Ltd.

Inventor： Jae Hoon Lee ,  Dong Hak Pyo ,  Seung Ho Park ,  Kyoung Ho Lim ,  Sang Myeon Han

IPC: G09G3/3225 ,  G09G3/36

Abstract: A display device and a method of driving the same. The display device includes a display panel including a plurality of pixels, a degradation compensator configured to output compensation data based on age values of the plurality of pixels and an input grayscale value of input image data, a scan driver configured to supply a scan signal to the display panel, and a data driver configured to supply a data signal corresponding to the compensation data to the display panel. The degradation compensator includes a first compensation unit configured to generate a first compensation grayscale value with reference to the input grayscale value and a first age value, and a second compensation unit configured to generate a second compensation grayscale value with reference to the first compensation grayscale value and the first age value.

公开(公告)号：US10950181B2

公开(公告)日：2021-03-16

申请号：US16453192

申请日：2019-06-26

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sang Myeon Han ,  Seung Ho Park ,  Jae Hoon Lee

IPC: G09G3/20 ,  G09G3/3275

Abstract: Systems and methods are described for displaying an image during an initial driving period. An exemplary display device includes a timing controller configured to reconstruct compensation reference data from a first memory into a plurality of transmission data, sequentially transmit the plurality of transmission data to a second memory, and display an image on the display panel when partial transmission data of the plurality of transmission data are transmitted and stored to the second memory during the initial driving period.