公开(公告)号：US20160351101A1

公开(公告)日：2016-12-01

申请号：US15140332

申请日：2016-04-27

Applicant: Samsung Display Co., Ltd.

Inventor： Jae Hoon LEE ,  Seung Ho PARK ,  Do Hyung RYU ,  Jae Woo SONG ,  Hae Goo JUNG

IPC: G09G3/20 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/3233

CPC classification number: G09G3/3225 ,  G09G2320/0238 ,  G09G2320/0271 ,  G09G2320/041 ,  G09G2320/048 ,  G09G2320/0686

Abstract: An organic light emitting display device includes a display panel having pixels and a display panel driver driving the display panel. Each of the pixels includes an organic light emitting diode, and the display panel driver selects one of the pixels, determines a reference grayscale value, compares a grayscale value, and determines the selected pixel as a low grayscale pixel when the grayscale value is lower than the reference grayscale value and higher than a black grayscale value. Some of the low grayscale pixels display the black grayscale value when there are more than one neighboring low grayscale pixels. The reference grayscale value is determined based on a reference grayscale variable, and the reference grayscale variable includes at least one of a temperature of the display panel, a time period when the selected pixel emits light, and a wavelength of light emitted by the selected pixel.

Abstract translation: 有机发光显示装置包括具有像素的显示面板和驱动显示面板的显示面板驱动器。 每个像素包括有机发光二极管，并且显示面板驱动器选择像素之一，确定参考灰度值，比较灰度值，并且当灰度值低于灰度值时，将所选择的像素确定为低灰度像素 参考灰度值，高于黑色灰度值。 当有多个相邻的低灰度像素时，一些低灰度像素显示黑色灰度值。 参考灰度值基于参考灰度变量确定，参考灰度变量包括显示面板的温度，所选择的像素发光的时间段和由所选择的像素发射的光的波长中的至少一个 。

公开(公告)号：US20250061827A1

公开(公告)日：2025-02-20

申请号：US18732137

申请日：2024-06-03

Applicant: Samsung Display Co., Ltd.

Inventor： Hak Mo CHOI ,  Se Yun KIM ,  Hyung Woo YIM ,  Hui Su KIM ,  Seung Ho PARK

IPC: G09G3/00 ,  G09G3/20 ,  G09G3/32

Abstract: A method of generating compensating data for a pixel circuit differences in a display device includes displaying a test image of pixels of the display device; generating a first camera image by photographing the test image; applying a test input signal to each of the pixels and sensing corresponding test outputs, wherein the test input signal is at least one of a test current and a test voltage; generating weights for the pixels based on the test outputs; generating a second camera image by applying the weights to the first camera image; and generating compensation data for the pixels based on the second camera image.

公开(公告)号：US20240233607A9

公开(公告)日：2024-07-11

申请号：US18319930

申请日：2023-05-18

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Joon Hyeok JEON ,  Byoung Kwan AN ,  Sang Myeon HAN ,  Chang Hun KIM ,  Seung Ho PARK ,  Seok Gyu BAN ,  Nam Jae LIM

IPC: G09G3/20 ,  G09G3/3233

CPC classification number: G09G3/2096 ,  G09G3/3233 ,  G09G2300/0842 ,  G09G2320/0257 ,  G09G2320/041 ,  G09G2320/048 ,  G09G2330/08 ,  G09G2360/16

Abstract: A display device includes pixels connected to scan lines and data lines, each pixel including a driving transistor and at least one light emitting element, and a timing controller configured to generate output data using external input data. The timing controller includes a first compensator configured generate first data by correcting the external input data using at least one of optical measurement information, a threshold voltage of each of the driving transistors, mobility information, dimming information, and temperature information, and an afterimage compensator configured to generate second data based on age information of each light emitting element and the first data, generate third data based on a current amount corresponding to the first data and a current amount corresponding to the second data, and generate the age information by accumulating the third data.

公开(公告)号：US20240221622A1

公开(公告)日：2024-07-04

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：US20240119876A1

公开(公告)日：2024-04-11

申请号：US18392081

申请日：2023-12-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kang Hee LEE ,  Gil Bae PARK ,  Seung Ho PARK

IPC: G09G3/00 ,  G09G3/20

CPC classification number: G09G3/007 ,  G09G3/2085 ,  G09G3/2092 ,  G09G2320/0233 ,  G09G2320/0257 ,  G09G2320/043 ,  G09G2330/10 ,  G09G2360/16

Abstract: A method of displaying an image in a display device may include determining the degree of deterioration of pixels included in a display unit based on image data of a current frame image, determining a shift route of the current frame image so as to correspond to the determined degree of deterioration. The first image data is corrected to second image data so that the current frame image is shifted along the shift route.

公开(公告)号：US20230119909A1

公开(公告)日：2023-04-20

申请号：US17868220

申请日：2022-07-19

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Su Min YANG ,  Seung Ho PARK ,  Sung Hoon BANG ,  Sang Jae YEO

IPC: G09G3/20

Abstract: A display device includes: pixels connected to corresponding scan lines, control lines, data lines, and sensing lines, a scan driver which supplies a scan signal to the scan lines, and supplies a control signal to the corresponding control lines, a data driver which supplies one of an image data signal and a sensing data signal to the corresponding data lines, and a sensing driver which senses characteristics of driving transistors of different pixels of the pixels in a previous sensing period and a current sensing period, and determines a final sensing value of a target pixel of the pixels in the current sensing period, based on a difference between a previous sensing value of the target pixel, which is determined based on the sensing in the previous sensing period, and a preliminary sensing value of the target pixel, which is calculated based on the sensing in the current sensing period.

公开(公告)号：US20220301524A1

公开(公告)日：2022-09-22

申请号：US17833770

申请日：2022-06-06

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kang Hee LEE ,  Seung Ho PARK ,  Chai Hoon LIM ,  Mi Young JOO

IPC: G09G5/38 ,  G09G3/3225 ,  G06T3/20 ,  G09G3/00 ,  G09G3/3233

Abstract: In an embodiment of the present invention, a method for displaying an image of a display device includes moving the image displayed on an image display region along a movement path including a first position and a second position during a period of time, wherein, during the period of time, a total time for which the image is located at the first position is greater than a total time for which the image is located at the second position.

公开(公告)号：US20220198998A1

公开(公告)日：2022-06-23

申请号：US17479306

申请日：2021-09-20

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hee Sook PARK ,  Kyoung Ho LIM ,  Seung Ho PARK ,  Jae Hoon LEE

IPC: G09G3/32

Abstract: A display device includes a set period setting unit for setting, as a set time, a time for which a set period elapses from a time at which a first area included in an input image is detected as a still area, and a gain generator for gradually decreasing an initial level of a gain value down to a saturation level having a lowest value of the gain value from the set time. The set period setting unit differently sets the saturation level of the gain value and a final level of the gain value, corresponding to grayscale values of the first area and a load value of the input image. The load value is an average value of grayscale values of an entirety of an area of the input image.

公开(公告)号：US20210375223A1

公开(公告)日：2021-12-02

申请号：US17402439

申请日：2021-08-13

Applicant: Samsung Display Co., Ltd.

Inventor： Jae Hoon LEE ,  Seung Ho PARK ,  Hee Sook PARK ,  Kyoung Ho LIM

IPC: G09G3/36

Abstract: An afterimage compensator and a display device having the same are disclosed, and the afterimage compensator includes an image analyzer configured to determine an amount of image variation based on a change of image data, and an image shifter configured to adjust a shift interval, which is an interval between time points at which an image is shifted, according to the amount of image variation.

公开(公告)号：US20200312235A1

公开(公告)日：2020-10-01

申请号：US16820433

申请日：2020-03-16

Applicant: Samsung Display Co., Ltd.

Inventor： Jong Wook KIM ,  Eun Zi KIM ,  Byoung Kwan AN ,  Seung Ho PARK

IPC: G09G3/3208

Abstract: A display device includes: a display panel including a plurality of pixels configured to receive pixel driving currents; a current sensor configured to measure an entire driving current diverged into the pixel driving currents; and a temperature sensor configured to measure an ambient temperature of the display panel, wherein the display panel includes a degradation compensator configured to generate output grayscale values for the pixels based on the entire driving current, the ambient temperature, and input grayscale values for the pixels.