公开(公告)号：US11217165B2

公开(公告)日：2022-01-04

申请号：US16841582

申请日：2020-04-06

Applicant: Samsung Display Co., Ltd.

Inventor： Tae Hoon Kim ,  Ji Hyun Ka ,  Seung Kyu Lee

IPC: G09G3/32 ,  G09G3/3233 ,  H01L27/32 ,  H01L29/786 ,  H01L27/12

Abstract: The present disclosure relates to a pixel displaying an image. A pixel includes an organic light emitting diode, a first transistor controlling an amount of current flowing from a first driving power supply to a second driving power supply via the organic light emitting diode in response to a voltage of a first node; a storage capacitor connected between the first node and the first driving power supply; a second transistor connected between a data line and the first node and turned on when a scan signal is supplied to a first scan line, and an auxiliary transistor connected between the second transistor and the data line and turned on when a scan signal is supplied to a second scan line. The second transistor and the auxiliary transistor have an overlapping turn-on period, and the second transistor is turned off before the auxiliary transistor is turned off.

公开(公告)号：US20210383751A1

公开(公告)日：2021-12-09

申请号：US17407412

申请日：2021-08-20

Applicant: Samsung Display Co., Ltd.

Inventor： Seung Kyu Lee ,  Seung Ji Cha ,  Ji Hyun Ka ,  Tae Hoon Kwon ,  Min Ku Lee ,  Jin Tae Jeong

IPC: G09G3/3225 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3275

Abstract: A stage includes an output, an input, signal processors, and a stabilizer. The output supplies a voltage of a first or second power source to an output terminal based on voltages of first and second nodes. The input controls voltages of third and fourth nodes based on signals to a first and second input terminals. A first signal processor controls the voltage of the first node based on the voltage of the second node. A second signal processor is connected to a fifth node and controls the voltage of the first node based on a signal to a third input terminal. A third signal processor controls the voltage of the fourth node based on the voltage of the third node and the signal to the third input terminal. The stabilizer is connected between the second signal processor and input to control voltage drop widths of the third and fourth nodes.

公开(公告)号：US11150765B2

公开(公告)日：2021-10-19

申请号：US16802202

申请日：2020-02-26

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Yoon Gyu Lee ,  Jae Cheon Park ,  Seung Kyu Lee ,  Sun Joon Hwang

IPC: G06F3/041

Abstract: A display device is provided including a much sensor including a touch controller and a display panel overlapped by the touch sensor and configured to display an image. A display panel driver is, electrically connected to the display panel and configured to supply a driving signal to the display panel. The display panel driver is electrically connected to the touch controller and is configured to transmit a noise sensing signal to the touch controller.

公开(公告)号：US10891900B2

公开(公告)日：2021-01-12

申请号：US16369740

申请日：2019-03-29

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Woong Kim ,  Seung Kyu Lee ,  Won Mi Hwang

IPC: G09G3/3258

Abstract: An emission driver according to example embodiments includes a plurality of stages each having an input block; an output block; a first signal processing block controlling a voltage of a first node; a second signal processing block controlling a voltage of a fourth node in response to the signal supplied to a third input terminal and a voltage of a fifth node; a third signal processing block controlling the voltage of the fourth node; a fourth signal processing block controlling the voltage of the third node; and a stabilization block electrically connected between the input block and the output block to limit a voltage drop between the first node and the third node. The stabilization block may limit a voltage drop between a second node and the fourth node by lowering a voltage of a second power source to the fifth node.

公开(公告)号：US10769987B2

公开(公告)日：2020-09-08

申请号：US15439133

申请日：2017-02-22

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Seung Kyu Lee ,  Tae Hoon Kwon ,  Min Ku Lee ,  Ji Hyun Ka ,  Jin Tae Jeong ,  Seung Ji Cha

IPC: G06F1/00 ,  G09G3/3225 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/36

Abstract: A display device includes first pixels in a first pixel region and connected to first scan lines and second pixels in a second pixel region connected to second scan lines. The second pixel has a width less than the first pixel region. The display device also includes a first scan driver to supply first scan signals to the first scan lines, a second scan driver to supply second scan signals to the second scan lines, a first signal line to supply a first driving signal to the first scan driver and the second scan driver, and a signal delay circuit connected to the first signal line to delay the first driving signal.

公开(公告)号：US10650725B2

公开(公告)日：2020-05-12

申请号：US16445713

申请日：2019-06-19

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ji Hyun Ka ,  Sun Ja Kwon ,  Tae Hoon Kwon ,  Byung Sun Kim ,  Yang Wan Kim ,  Hyun Ae Park ,  Su Jin Lee ,  Seung Kyu Lee ,  Jae Yong Lee ,  Jin Tae Jeong ,  Seung Ji Cha

IPC: G09G5/10 ,  G09G3/20 ,  G09G3/3225 ,  G09G3/3233 ,  G09G3/34 ,  H01L27/32 ,  G02F1/1345 ,  G02F1/1333

Abstract: A display device includes a substrate including a first pixel area, a second pixel area, and a third pixel area, each of the second and third pixel areas having a smaller surface area than the first pixel area and being connected to the first pixel area, first to third pixels provided in the first to third pixel areas, respectively, first to third lines connected to the first to third pixels, respectively, a line connecting part connecting the second and third lines, and a dummy unit overlapping the line connecting part to compensate for a difference of a load value of the first line and a load value of the second line.

公开(公告)号：US20190304365A1

公开(公告)日：2019-10-03

申请号：US16212382

申请日：2018-12-06

Applicant: Samsung Display Co., Ltd.

Inventor： Chae Han Hyun ,  Seung Kyu Lee

IPC: G09G3/3233

Abstract: A pixel includes: an organic light emitting diode; a first transistor for controlling an amount of driving current flowing from a first voltage line connected to a second node to a second voltage line via the organic light emitting diode, corresponding to a voltage of a first node; a second transistor connected between a data line and the second node, the second transistor having a gate electrode connected to a first scan line; a third transistor connected between the first voltage line and a third node, the third transistor having a turn-on period that does not overlap with that of the second transistor; a fourth transistor connected to the third node, the fourth transistor having a gate electrode connected to the first scan line; a first capacitor connected between the first voltage line and the first node; and a second capacitor connected between the data line and the third node.

公开(公告)号：US20190295471A1

公开(公告)日：2019-09-26

申请号：US16436016

申请日：2019-06-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： JIN TAE JEONG ,  Min Ku Lee ,  Ji Hyun Ka ,  Tae Hoon Kwon ,  Seung Kyu Lee ,  Seung Ji Cha

IPC: G09G3/3258 ,  G09G3/3225 ,  H01L27/32

Abstract: A pixel includes an organic light emitting diode (OLED), a pixel circuit, and first and second transistors. The OLD includes a cathode electrode connected to a second power source. The pixel circuit includes a driving transistor having a gate electrode initialized by a third power source. The driving transistor controls the amount of current flowing from a first power source to the second power source via the OLED. The first transistor is connected between a fourth power source and the second power source and an anode electrode of the OLED. The first transistor is turned on based on a scan signal is supplied to a scan line. The second transistor is connected between a data line and the pixel circuit. The second transistor is turned on when the scan signal is supplied to the ith scan line.

公开(公告)号：US10332438B2

公开(公告)日：2019-06-25

申请号：US15800576

申请日：2017-11-01

Applicant: Samsung Display Co., Ltd.

Inventor： Min Kyu Woo ,  Seung Kyu Lee ,  Jae Du Noh ,  Min Woo Byun ,  Jae Sic Lee ,  Seung Yeon Cho

IPC: G09G3/20 ,  G09G3/3266 ,  G09G3/3233 ,  G11C19/28

Abstract: A display device includes: first pixels at a first pixel area and connected to first scan lines; a first scan driver to supply first scan signals to the first scan lines; second pixels at a second pixel area and connected to second scan lines; a second scan driver to supply second scan signals to the second scan lines; third pixels at a third pixel area and connected to third scan lines; and a third scan driver to supply third scan signals to the third scan lines. In a first mode, each of the first scan signals has at least a portion having a first pulse width, and each of the second scan signals has at least a portion having a second pulse width different from the first pulse width.

公开(公告)号：US10217417B2

公开(公告)日：2019-02-26

申请号：US15253593

申请日：2016-08-31

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Seung Kyu Lee ,  Min Woo Byun

IPC: G09G3/3291 ,  G09G3/3233

Abstract: A display device includes a first pixel coupled to a scan line and a first data output line, a second pixel coupled to the scan line and a second data output line, a scan driver configured to supply a scan signal to the scan line, a data driver configured to supply a first data signal, a second data signal, and a first initializing voltage to a data input line, and a demultiplexer configured to receive the first data signal and the second data signal, to transmit the first data signal to the first data output line, and to transmit the second data signal and the first initializing voltage to the second data output line.