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1. 发明申请

US20230047875A1 DISPLAY DEVICE AND METHOD OF DRIVING DISPLAY DEVICE 有权
公开(公告)号：US20230047875A1
公开(公告)日：2023-02-16
申请号：US17732375
申请日：2022-04-28
申请人： Samsung Display Co., Ltd.
发明人： BOYOUNG AN , JI-WOONG JEONG , Wook Lee , JUNGKI MIN
IPC分类号： G09G3/32
摘要： A display device including pixels; a controller configured to generate first compensation data based on first sensing data with respect to threshold voltages of driving transistors of the pixels which are sensed during a first sensing period, to generate second compensation data based on second sensing data with respect to mobilities of the driving transistors of the pixels which are sensed during the first sensing period, to generate third compensation data based on third sensing data with respect to mobility change amounts of the driving transistors of the pixels which are sensed using image data for sensing compensated based on the first and second compensation data during a second sensing period, and to compensate input image data based on the first, second, and third compensation data to generate compensated image data; and a data driver configured to provide data voltages to the pixels based on the compensated image data.

2. 发明授权

US11232751B2 Display device and a method of driving the same 有权
公开(公告)号：US11232751B2
公开(公告)日：2022-01-25
申请号：US16985536
申请日：2020-08-05
申请人： Samsung Display Co., Ltd.
发明人： Wook Lee
IPC分类号： G09G3/3258 , G09G3/3275 , G09G3/3266
摘要： A display device includes: a pixel circuit including a switching transistor connected to a data line, a storage capacitor connected to the switching transistor, a driving transistor connected to the storage capacitor, an organic light-emitting diode connected to the driving transistor and a sensing transistor connected between a sensing line and the driving transistor; and a data-sensing circuit including a first selector connected to the data line and the sensing line, a second selector connected to an output terminal of an amplifier, he first selector and a feedback capacitor, where the second selector selectively connects the output terminal of the amplifier to the first selector and the feedback capacitor, a third selector connected to the sensing line, and a fourth selector connected to the output terminal of the amplifier and the third selector.

3. 发明授权

US11145244B2 Display device and method of driving the same 有权
公开(公告)号：US11145244B2
公开(公告)日：2021-10-12
申请号：US17009676
申请日：2020-09-01
申请人： Samsung Display Co., Ltd.
发明人： Seok Gyu Ban , Kyung Man Kim , Wook Lee
IPC分类号： G09G3/32
摘要： A display device includes a display unit, a timing controller, a data driver, and a sensing unit. The display unit includes a data line, a sensing line, and a pixel that includes a light emitting element and a transistor for providing a driving current to the light emitting element. The timing controller generates a first voltage value by compensating a first grayscale value and generates a second voltage value by remapping the first voltage value from a first voltage range to in a second voltage range. The data driver generates a data voltage based on the second voltage value and supplies the data voltage to the data line. The sensing unit provides an initialization voltage to the sensing line. A voltage difference between the data voltage and a threshold voltage of the transistor is greater than or equal to the initialization voltage.

4. 发明授权

US11030927B2 Method of performing a sensing operation in an organic light emitting diode display device, and organic light emitting diode display device 有权
公开(公告)号：US11030927B2
公开(公告)日：2021-06-08
申请号：US16673664
申请日：2019-11-04
申请人： Samsung Display Co., LTD.
发明人： Kyungman Kim , Wook Lee
IPC分类号： G09G3/00 , G09G3/3258
摘要： There is provided a method of performing a sensing operation in an organic light emitting diode (OLED) display device including a plurality of pixels, the method including performing a one-line sensing operation for pixels in one line among the plurality of pixels, determining whether a sensing error occurs based on a result of the one-line sensing operation, when the sensing error is determined not to occur, performing a frame-sensing operation for all of the plurality of pixels, detecting an abnormal sensing-data line from among frame-sensing data generated by the frame-sensing operation, and replacing the abnormal sensing-data line by a data line generated based on at least one sensing-data line that is adjacent to the abnormal sensing-data line in the frame-sensing data.

5. 发明授权

US10607548B2 Display device that senses current flowing through a pixel and method of driving the same 有权
公开(公告)号：US10607548B2
公开(公告)日：2020-03-31
申请号：US16043794
申请日：2018-07-24
申请人： SAMSUNG DISPLAY CO., LTD.
发明人： Wook Lee
IPC分类号： G06F3/038 , G09G5/00 , G09G3/3266
摘要： A display device includes first pixels connected to first scan lines and data lines, a second pixel region including a second scan line and control line and at least one second pixel connected to the second scan line and the control line, a scan driver which drives at least the first scan lines, a sensor unit which is connected to the second pixel and senses current that flows through the second pixel in response to a sensing mode in a predetermined sensing period, and a timing controller which drives the sensor unit in response to the sensing mode, controls a driving order of the first scan lines in response to a first mode, and sets a division driving condition of the first scan lines in the first mode in response to a sensing signal input from the sensor unit in the sensing period.

6. 发明授权

US10283043B2 Organic light emitting display device and method of driving the same 有权
公开(公告)号：US10283043B2
公开(公告)日：2019-05-07
申请号：US15215534
申请日：2016-07-20
申请人： SAMSUNG DISPLAY CO., LTD.
发明人： Wook Lee
IPC分类号： G09G3/3233
摘要： An organic light emitting display device includes a display panel including a pixel disposed in an intersection of a data line, a feedback line, and a scan line, a data driver sequentially providing reference signals to the pixel though the data line, a sensing unit sequentially generating sensing signals based on voltages applied to the feedback line in response to the reference signals, and a timing controller calculating a compensation coefficient based on the sensing signals and compensating input data based on the compensation coefficient.

7. 发明授权

US09685117B2 Display device, control device for driving the display device, and drive control method thereof 有权
公开(公告)号：US09685117B2
公开(公告)日：2017-06-20
申请号：US15047383
申请日：2016-02-18
申请人： Samsung Display Co., Ltd.
发明人： Dong-Woo Lee , Wook Lee
IPC分类号： G09G3/3258 , G09G5/02 , G09G3/3233 , G09G3/20 , G09G3/3283
CPC分类号： G09G3/3258 , G09G3/2003 , G09G3/2007 , G09G3/3233 , G09G3/3283 , G09G5/02 , G09G2310/0262 , G09G2310/027 , G09G2320/0233 , G09G2320/0673 , G09G2320/0693 , G09G2330/00 , G09G2330/028
摘要： A display device, a driving control device of the display device, and a driving control method are disclosed. In one aspect, the display device comprises a display unit consisting of a plurality of pixels including a light emitting element emitting light according to a driving current corresponding to a data signal; a scan driver transmitting a scan signal through a plurality of scan lines; a data driver transmitting a data signal through a plurality of data lines; a power supply unit supplying a driving voltage to drive a plurality of pixels through a power source wire; and a driving controller connected to the power source wire, obtaining an actual output voltage value of the driving voltage output from the power source voltage supply unit, and compensating a deviation of the driving voltage in a process step by using the actual output voltage value.

8. 发明申请

US20150022429A1 DISPLAY DEVICE AND DRIVING METHOD THEREOF 有权
标题翻译：显示装置及其驱动方法
公开(公告)号：US20150022429A1
公开(公告)日：2015-01-22
申请号：US14222207
申请日：2014-03-21
申请人： Samsung Display Co., Ltd.
发明人： Se-Byung Chae , Wook Lee
IPC分类号： G09G3/32
CPC分类号： G09G3/3291 , G09G2310/0291
摘要： A display device is disclosed. In one aspect, the display device includes a display panel including a plurality of pixels, and a data driver including a plurality of data output unit buffers electrically connected to a plurality of data lines electrically connected to the pixels. Each of the data output unit buffers includes an output terminal, a first transistor for applying a high level data voltage to the output terminal, and a second transistor for applying a low level data voltage to the output terminal. Each of the data output unit buffers also includes a first switch electrically connecting the first and second transistors to the output terminal, and a second switch electrically connecting a ground voltage to the output terminal.
摘要翻译：公开了一种显示装置。在一个方面，显示装置包括包括多个像素的显示面板和数据驱动器，其包括电连接到电连接到像素的多个数据线的多个数据输出单元缓冲器。每个数据输出单元缓冲器包括输出端子，用于向输出端子施加高电平数据电压的第一晶体管，以及用于向输出端子施加低电平数据电压的第二晶体管。每个数据输出单元缓冲器还包括将第一和第二晶体管电连接到输出端子的第一开关以及将接地电压电连接到输出端子的第二开关。

9. 发明授权

US11626045B2 Display device and method of compensating degradation 有权
公开(公告)号：US11626045B2
公开(公告)日：2023-04-11
申请号：US16783109
申请日：2020-02-05
申请人： SAMSUNG DISPLAY CO., LTD.
发明人： Wook Lee
IPC分类号： G09G3/00 , G09G3/3241 , G09G3/3275 , G09G3/3266 , G09G3/3233
摘要： A display device includes a display panel including a pixel electrically connected to a feedback line, a sensor electrically connected to the feedback line, the sensor being configured to measure an impedance of the pixel in response to a first control signal, and to measure a driving current flowing through the pixel in response to a second control signal, and a timing controller configured to selectively generate the first control signal and the second control signal based on an aging time of the display panel.

10. 发明授权

US11514847B2 Display device and method of driving the same 有权
公开(公告)号：US11514847B2
公开(公告)日：2022-11-29
申请号：US17475617
申请日：2021-09-15
申请人： Samsung Display Co., Ltd.
发明人： Seok Gyu Ban , Kyung Man Kim , Wook Lee
IPC分类号： G09G3/32
摘要： A display device includes a display unit, a timing controller, a data driver, and a sensing unit. The display unit includes a data line, a sensing line, and a pixel that includes a light emitting element and a transistor for providing a driving current to the light emitting element. The timing controller generates a first voltage value by compensating a first grayscale value and generates a second voltage value by remapping the first voltage value from a first voltage range to in a second voltage range. The data driver generates a data voltage based on the second voltage value and supplies the data voltage to the data line. The sensing unit provides an initialization voltage to the sensing line. A voltage difference between the data voltage and a threshold voltage of the transistor is greater than or equal to the initialization voltage.

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