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1. 发明授权

US11462170B2 Scan driver and display device 有权
公开(公告)号：US11462170B2
公开(公告)日：2022-10-04
申请号：US17008366
申请日：2020-08-31
申请人： Samsung Display Co., Ltd.
发明人： Jae Keun Lim , Jin Young Roh , Sehyuk Park , Hyo Jin Lee
IPC分类号： G09G3/3266 , G11C19/18 , G09G3/3258 , G09G3/3275 , G09G3/36 , G09G3/3233 , G11C19/28
摘要： A scan driver includes: a plurality of first stages configured to sequentially output a plurality of intermediate scan signals based on a scan start signal; a plurality of masking transistors respectively connected to a plurality of output terminals of the plurality of first stages, and configured to selectively transfer the plurality of intermediate scan signals in response to a masking signal, respectively; and a plurality of second stages including a plurality of input terminals respectively connected to the plurality of masking transistors, and configured to selectively output a plurality of scan signals based on the plurality of intermediate scan signals selectively transferred by the plurality of masking transistors.

2. 发明授权

US11423834B2 Display device and method of driving the same 有权
公开(公告)号：US11423834B2
公开(公告)日：2022-08-23
申请号：US17142131
申请日：2021-01-05
申请人： Samsung Display Co., Ltd.
发明人： Se Hyuk Park , Hong Soo Kim , Jin Young Roh , Hyo Jin Lee , Jae Keun Lim
IPC分类号： G09G3/3291 , G09G3/3266 , G09G3/20 , G09G3/3233
摘要： A display device includes: a pixel configured to display an image based on image data and a reference voltage; a controller configured to generate reference voltage data corresponding to the reference voltage for restraining leakage current in the pixel based on a frame frequency; and a power supply configured to generate the reference voltage based on the reference voltage data and supply the reference voltage to the pixel.

3. 发明授权

US11367379B1 Display device and method of driving display device 有权
公开(公告)号：US11367379B1
公开(公告)日：2022-06-21
申请号：US17409865
申请日：2021-08-24
申请人： Samsung Display Co., Ltd.
发明人： Se Hyuk Park , Jae Keun Lim , Hong Soo Kim , Jin Young Roh , Hyo Jin Lee
IPC分类号： G09G3/20
摘要： A display device according to an embodiment of the disclosure includes a timing controller, a scan driver including a plurality of stages connected to a plurality of clock signal lines and generating a plurality of scan signals in response to the scan start signal, a data driver configured to generate a plurality of data signals based on the image data, and a pixel portion including a plurality of pixels. One stage in the scan driver transmits a carry signal to 2n-th next stage. The timing controller selects any one of a normal frequency and low frequencies lower than the normal frequency as a driving frequency based on the input image data, and adjusts a clock duty of the plurality of clock signals so that a time required to output all of the plurality of scan signals during one frame is constant irrespective of the driving frequency.

4. 发明授权

US10997923B2 Scan driver and a display apparatus having the same 有权
公开(公告)号：US10997923B2
公开(公告)日：2021-05-04
申请号：US16695927
申请日：2019-11-26
申请人： Samsung Display Co., Ltd.
发明人： Jae Keun Lim , Jun Yong Song , Jeonkyoo Kim
IPC分类号： G09G3/3266 , G09G3/3258
摘要： A scan driver includes a charging part configured to charge a next scan signal in response to a sensing selection signal in an active period of a frame period, and an output control part configured to output the second clock signal in response to a voltage charged in the charging part in a vertical blank period of the frame period.

5. 发明授权

US09842537B2 Pixel, display device comprising the same and having an initialization period and driving method thereof 有权
公开(公告)号：US09842537B2
公开(公告)日：2017-12-12
申请号：US14991900
申请日：2016-01-08
申请人： SAMSUNG DISPLAY CO., LTD.
发明人： Jae Keun Lim , Jong Hee Kim , Chong Chul Chai
IPC分类号： G09G3/32 , G09G3/3225
CPC分类号： G09G3/3225 , G09G2300/0876 , G09G2310/0216 , G09G2310/08 , G09G2320/045
摘要： A display device includes: a display unit including a plurality of pixels, each of the pixels including: an OLED; and a driving transistor to supply current to an anode of the OLED according to a voltage applied to a gate of the driving transistor and a power supply voltage; a scan driver to supply scan signals to the pixels; an initialization driver to supply initializing signals to the pixels; a data driver to supply data signals to the pixels; light emission drivers to supply first and second light emission signals to the pixels; and a power supply to supply the power supply voltage and an initialization voltage to the pixels, wherein the initialization voltage is supplied to the anode during a first period, and the power supply voltage corresponding to a threshold voltage of the driving transistor is supplied to the gate during a first sub-period of the first period.

6. 发明授权

US11521546B2 Display device 有权
公开(公告)号：US11521546B2
公开(公告)日：2022-12-06
申请号：US17517736
申请日：2021-11-03
申请人： Samsung Display Co., Ltd.
发明人： Se Hyuk Park , Hong Soo Kim , Jin Young Roh , Hyo Jin Lee , Jae Keun Lim
IPC分类号： G09G3/3225
摘要： A display device comprises pixels, an emission control driver, a scan driver, and a timing controller for selecting whether the display device is to operate in a first display mode in which the display device is driven at a first frequency or a second display mode in which the display device is driven at a second frequency lower than the first frequency based on input image data. The first display mode comprises first frame periods, and the second display mode comprises second frame periods having at least two sub-frames having a period equal to the first frame period. A total time required to supply the scan signals to the scan lines in one first frame period of the first frame periods and a total time required to supply the scan signals to the scan lines in one second frame period of the second frame periods are substantially same.

7. 发明授权

US11521531B2 Display device performing still image detection, and method of detecting a still image in a display device 有权
公开(公告)号：US11521531B2
公开(公告)日：2022-12-06
申请号：US16950004
申请日：2020-11-17
申请人： SAMSUNG DISPLAY CO., LTD.
发明人： Hong Soo Kim , Jin Young Roh , Se Hyuk Park , Hyo Jin Lee , Jae Keun Lim , Jun Heyung Jung
IPC分类号： G09G3/20
摘要： A display device includes a display panel including a plurality of pixels, and a panel driver including N registers, where N is an integer greater than 1. The panel driver is configured to divide the display panel into N first detection regions, to perform a first still image detection operation on each of the N first detection regions by using the N registers, to divide the display panel into N second detection regions different from the N first detection regions by using a result of the first still image detection operation, and to perform a second still image detection operation on each of the N second detection regions by using the N registers.

8. 发明授权

US11488537B2 Display device including first dots connected to first stages and second dots connected to second stages 有权
公开(公告)号：US11488537B2
公开(公告)日：2022-11-01
申请号：US17182825
申请日：2021-02-23
申请人： SAMSUNG DISPLAY CO., LTD.
发明人： Se Hyuk Park , Hong Soo Kim , Jin Young Roh , Bong Hyun You , Hyo Jin Lee , Jae Keun Lim
IPC分类号： G09G3/3266
摘要： A display device includes first dots connected to first scan lines, second dots connected to second scan lines and alternately disposed with the first dots in a first direction and a second direction different from the first direction, a scan driver including first stages respectively connected to the first scan lines and second stages respectively connected to the second scan lines, and a data driver connected to the first dots and the second dots through data lines. The first stages are connected to first clock lines, the second stages are connected to second clock lines, first stages except a first start stage are respectively connected to corresponding first scan lines of corresponding previous first stages, and second stages except a second start stage are respectively connected to corresponding second scan lines of corresponding previous second stages.

9. 发明授权

US11417264B2 Scan driver 有权
公开(公告)号：US11417264B2
公开(公告)日：2022-08-16
申请号：US17320372
申请日：2021-05-14
申请人： SAMSUNG DISPLAY CO., LTD.
发明人： Jae Keun Lim , Jin Young Roh , Se Hyuk Park , Hyo Jin Lee
IPC分类号： G09G3/20
摘要： A scan driver stage including: a first transistor including a gate connected to a first clock, a first electrode connected to a carry terminal, and a second electrode connected to a first node; a second transistor including a gate connected to a second clock, a first electrode connected to a carry terminal, and a second electrode connected to the first node; a third transistor including a gate connected to the first node and a first electrode connected to a second node; a fourth transistor including a gate connected to the second clock, a first electrode connected to power, and a second electrode connected to the second node; a fifth transistor including a gate connected to the first clock, a first electrode connected to power, and a second electrode connected to the second node; and an output outputting first and second scan signals based on first and second node voltages.

10. 发明授权

US11244599B2 Display device having a plurality of pixels and driving method thereof using multiple scan signals 有权
公开(公告)号：US11244599B2
公开(公告)日：2022-02-08
申请号：US16719871
申请日：2019-12-18
申请人： Samsung Display Co., Ltd.
发明人： Jun Yong Song , Jeong Kyoo Kim , Jae Keun Lim
IPC分类号： G09G3/32
摘要： A display device includes a plurality of pixels respectively coupled to first scan lines, second scan lines and data lines; and a scan driver to supply first scan signals to the first scan lines and second scan signals to the second scan lines, wherein the pixel includes a first transistor having a gate electrode connected to a first node, one electrode connected to a first power line, and other electrode connected to a second node; a second transistor having a gate electrode connected to a first scan line, one electrode connected to a data line, and other electrode connected to the first node, the second transistor being turned on in a first time period of a frame when the first scan signal is applied; a third transistor having a gate electrode connected to a second scan line, one electrode connected to the second node, and other electrode connected to an initialization line, the third transistor being turned on in the first time period and at least one second time period of the frame when the second scan signal is applied; a storage capacitor having one electrode connected to the first node and other electrode connected to the second node; and a light emitting diode having an anode connected to the second node and a cathode connected to a second power line, wherein the number of the first and second scan signals applied to the pixel during the frame period is different from each other.

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