公开(公告)号：US20170032743A1

公开(公告)日：2017-02-02

申请号：US15222582

申请日：2016-07-28

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jae Hoon LEE ,  Jin Woo KIM ,  Do Hyung RYU ,  Jae Woo SONG ,  Hae Goo JUNG

IPC: G09G3/3275

CPC classification number: G09G3/3233 ,  G09G2320/0271 ,  G09G2320/0285 ,  G09G2320/045 ,  G09G2320/046 ,  G09G2320/048 ,  G09G2330/028

Abstract: An organic light emitting display device includes: pixels including driving transistors positioned in regions divided by scan lines and data lines; a data accumulating unit arranged to accumulate first data; a first storage unit storing current and voltage change information corresponding to a degradation of an organic light emitting diode (OLED); a second storage unit storing a compensation value corresponding at least partially to channel length modulation of the driving transistors; and a timing controller programmed to carry out an altering of first data corresponding to an ith pixel so as to generate second data to be supplied to the ith pixel, the altering carried out according to: accumulation stress information for the ith pixel, the accumulation stress information corresponding to the accumulated first data and being stored in the data accumulating unit, the current and voltage change information, and a compensation value corresponding to the ith pixel.

Abstract translation: 有机发光显示装置包括：位于由扫描线和数据线划分的区域中的驱动晶体管的像素; 布置成累积第一数据的数据累积单元; 存储对应于有机发光二极管（OLED）的劣化的电流和电压变化信息的第一存储单元; 第二存储单元，存储至少部分对应于所述驱动晶体管的沟道长度调制的补偿值; 以及定时控制器，其被编程为执行与第i个像素对应的第一数据的改变，以便产生要提供给第i个像素的第二数据，所述改变根据第i个像素的累积应力信息，累积应力 与累积的第一数据对应的信息并存储在数据存储单元中，电流和电压变化信息以及对应于第i个像素的补偿值。

公开(公告)号：US20240119891A1

公开(公告)日：2024-04-11

申请号：US18452691

申请日：2023-08-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jae Hoon LEE ,  Jung Taek KIM

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2310/0294

Abstract: A display device may include a display panel including first and second pixels respectively connected to first and second sensing lines, a sensing driver including a sensing channel shared by the first and the second sensing lines, and a controller configured to control the display panel and the sensing driver. The controller may be configured to, in a first time period, electrically disconnect the sensing channel from the first and the second sensing lines, and reflect electrical characteristics of the first and the second pixels in the first and the second sensing lines, respectively, as sensing voltages, and in a second time period, record the sensing voltages reflected in the first and the second sensing lines in the sensing channel by time-sharing.

公开(公告)号：US20240021156A1

公开(公告)日：2024-01-18

申请号：US18142057

申请日：2023-05-02

Applicant: Samsung Display Co., Ltd.

Inventor： Jae Hoon LEE

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0852 ,  G09G2300/0819 ,  G09G2310/08 ,  G09G2330/028 ,  G09G2320/0666 ,  G09G2300/0861

Abstract: A pixel includes a driving transistor having a gate electrode connected to a first node and connected between a first power line to which a first power voltage is applied and a second node, a first initialization transistor having a gate electrode connected to a first scan line and connected between the second node and a first initialization power line to which a first initialization power voltage is applied, a second initialization transistor having a gate electrode connected to the first scan line and connected between a third node and a second initialization power line to which a second initialization power voltage is applied, a first capacitor connected between the first node and the second node, a second capacitor connected between the first power line and the second node, and a light emitting element connected between the third node and a second power line.

公开(公告)号：US20230030225A1

公开(公告)日：2023-02-02

申请号：US17719289

申请日：2022-04-12

Applicant: Samsung Display Co., LTD.

Inventor： Jae Hoon LEE ,  Kyung Sik JOO ,  Sang Myeon HAN

IPC: G09G3/20

Abstract: A display device includes: a display panel including a plurality of pixels; a deterioration compensator that outputs compensation data based on a lifetime value of the plurality of pixels and an input grayscale of input image data; a scan driver that supplies a scan signal to the display panel; and a data driver that supplies a data signal corresponding to the compensation data to the display panel. The deterioration compensator includes a grayscale-current converter that calculates an input current corresponding to the input grayscale.

公开(公告)号：US20200380920A1

公开(公告)日：2020-12-03

申请号：US16827397

申请日：2020-03-23

Applicant: Samsung Display Co., Ltd.

Inventor： Jae Hoon LEE ,  Hyun Bo BYUN ,  Kyoung Ho LIM

IPC: G09G3/3291

Abstract: A display device includes a display panel including a first data line, a second data line, and a pixel, the pixel including a first sub-pixel coupled to the first data line, and a second sub-pixel coupled to the second data line, a light stress compensator configured to generate a first data voltage control signal for the first sub-pixel based on a second data value of input image data for the second sub-pixel, in response to a first data value of input image data for the first sub-pixel being equal to or less than a first reference value, and a data driver configured to generate a first data signal based on the first data value for the first sub-pixel, to provide a first data voltage to the first data line, and to vary the first data voltage based on the first data voltage control signal.

公开(公告)号：US20200226992A1

公开(公告)日：2020-07-16

申请号：US16673768

申请日：2019-11-04

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：US20200066211A1

公开(公告)日：2020-02-27

申请号：US16427359

申请日：2019-05-31

Applicant: Samsung Display Co., Ltd.

Inventor： Jae Hoon LEE ,  Kuk Hwan AHN ,  Seok Ha HONG

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

Abstract: An nth (where n is a natural number) stage is included in a scan driver of a display. The nth stage includes: a first input circuit for controlling a voltage of a first node in response to a carry signal of a previous stage; a second input circuit for controlling the voltage of the first node in response to a carry signal of a next stage; a first control circuit for controlling a voltage of an output terminal in response to the carry signal of the next stage; an output circuit for outputting an nth scan signal and an nth carry signal in response to the voltage of the first node and a voltage of a second node; and a leakage control circuit for supplying a control voltage to the first input circuit and the second input circuit in response to one of the nth scan signal and the nth carry signal.

公开(公告)号：US20200013346A1

公开(公告)日：2020-01-09

申请号：US16505464

申请日：2019-07-08

Applicant: Samsung Display Co., Ltd.

Inventor： Seokha HONG ,  Jae Sung BAE ,  Jae Hoon LEE ,  Jai-Hyun KOH ,  Hoi Sik MOON ,  Namjae LIM

IPC: G09G3/34 ,  G09G3/36 ,  F21V8/00

Abstract: A display apparatus includes: a local dimmer configured to generate a dimming signal representing a degree of dimming of a light source block based on input image data; a luminance compensator configured to compensate luminance of the input image data based on the input image data and the dimming signal; a display panel configured to display an image based on the compensated input image data; and a light source configured to provide light to the display panel based on the dimming signal, wherein the luminance compensator is configured to compensate the luminance of the input image data using a gain varied according to a grayscale value of the input image data.

公开(公告)号：US20170046999A1

公开(公告)日：2017-02-16

申请号：US15070378

申请日：2016-03-15

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dong Gyu KIM ,  Jae Hoon LEE

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G3/3266 ,  G09G2300/0426 ,  G09G2310/0267 ,  G09G2310/0281 ,  G09G2320/0223 ,  G09G2330/028

Abstract: A display device according to an exemplary embodiment of the present invention may include: a display unit including a plurality of pixels; a first scan driver positioned at a first side of the display unit and arranged to output at least one first scan signal to the display unit; a second scan driver positioned at a second side of the display unit and arranged to output at least one second scan signal to the display unit; a third scan driver positioned along at least a portion of a third side of the display unit and arranged to output at least one third scan signal to the display unit; and a data driver positioned at a fourth side of the display unit and arranged to transmit a data signal to the display unit.

Abstract translation: 根据本发明的示例性实施例的显示装置可以包括：包括多个像素的显示单元; 第一扫描驱动器，位于所述显示单元的第一侧，并布置成将至少一个第一扫描信号输出到所述显示单元; 第二扫描驱动器，位于所述显示单元的第二侧，并布置成将至少一个第二扫描信号输出到所述显示单元; 第三扫描驱动器，沿着所述显示单元的第三侧的至少一部分定位，并被布置成将至少一个第三扫描信号输出到所述显示单元; 以及数据驱动器，位于所述显示单元的第四侧，并被布置为将数据信号发送到所述显示单元。

公开(公告)号：US20240021151A1

公开(公告)日：2024-01-18

申请号：US18477845

申请日：2023-09-29

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jae Hoon LEE

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/0267 ,  G09G2310/061 ,  G09G2310/08 ,  G09G2320/0214

Abstract: A scan driver includes a plurality of stages. A n-th stage among the plurality of stages includes a first input unit controlling a voltage of a first node in response to a previous carry signal, a scan output unit outputting a current scan signal corresponding to a scan clock signal in response to the voltage of the first node, a first switching unit controlling a voltage of a second node in response to the previous carry signal, a sensing output unit outputting a current sensing signal corresponding to a sensing clock signal in response to the voltage of the second node, a carry output unit outputting a current carry signal corresponding to a carry clock signal in response to the voltage of the second node, and a second switching unit controlling the voltage of the second node in response to the sensing clock signal or the carry clock signal.