公开(公告)号：US20210375193A1

公开(公告)日：2021-12-02

申请号：US17242818

申请日：2021-04-28

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Min Seong SON ,  Seung Kyu LEE ,  Sun Joon HWANG ,  Yun Seong KIM ,  Youn Woo CHOE

IPC: G09G3/32

Abstract: A display device includes a pixel including a first transistor coupled between a first node and a second node, an emission driver supplying an emission control signal at a first frequency to an emission control line, a scan driver supplying first to fourth scan signals respectively to first to fourth scan lines, a data driver supplying a data signal to a data line, and a timing controller. The first scan signal controls a timing at which a voltage of a first power source is supplied to the first node or the second node, and the second scan signal controls a timing at which a first electrode of the first transistor and a gate electrode of the first transistor are coupled to each other. The scan driver controls a bias state of the first transistor by supplying, plural times, the first and second scan signals in a non-emission period.

公开(公告)号：US20210082346A1

公开(公告)日：2021-03-18

申请号：US17103769

申请日：2020-11-24

Applicant: Samsung Display Co., Ltd.

Inventor： Jong Won PARK ,  Won Kyu KWAK ,  Seung Kyu LEE

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

Abstract: An organic light emitting display device includes a pixel, a data line, a first scan line, a second scan line, and a scan driver. The pixel includes a first transistor, a second transistor, and a third transistor. A source of the first transistor is electrically connected to a drain of the third transistor. A source of the second transistor is configured to receive an initialization voltage. The data line is electrically connected to a source of the third transistor and may transmit a data voltage higher than the initialization voltage. The first scan line is electrically connected to a gate of the third transistor. The second scan line is electrically connected to a gate of the second transistor. The scan driver may provide an initializing scan signal to the second scan line at least two horizontal periods before providing an initial scan signal to the first scan line.

公开(公告)号：US20200327848A1

公开(公告)日：2020-10-15

申请号：US16871287

申请日：2020-05-11

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: 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：US20190096332A1

公开(公告)日：2019-03-28

申请号：US16121423

申请日：2018-09-04

Applicant: Samsung Display Co., Ltd.

Inventor： Jong Won PARK ,  Seung Kyu LEE ,  Hyun Woong KIM

IPC: G09G3/3266 ,  G09G3/3225

Abstract: The display device includes a pixel circuit including a driving transistor, an N-type transistor on a first path coupled from a data line to a gate electrode of the driving transistor, and a P-type transistor on the first path, a first scan driver to supply a first scan signal to the N-type transistor, and a second scan driver to supply a second scan signal to the P-type transistor, wherein a width of a high level section of the first scan signal is wider than that of a low level section of the second scan signal, and the low level section of the second scan signal overlaps with the high level section of the first scan signal.

公开(公告)号：US20170365218A1

公开(公告)日：2017-12-21

申请号：US15601012

申请日：2017-05-22

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 ,  H01L27/32

CPC classification number: G09G3/3258 ,  G09G3/3225 ,  G09G2300/0819 ,  G09G2310/0216 ,  G09G2310/0251 ,  G09G2310/0262 ,  G09G2320/0214 ,  G09G2320/0238 ,  G09G2320/045 ,  H01L27/3248

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：US20170365211A1

公开(公告)日：2017-12-21

申请号：US15585425

申请日：2017-05-03

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 ,  G09G3/3266 ,  G09G3/3275

CPC classification number: G09G3/3225 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  G09G2300/0861 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2330/02

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：US20240014356A1

公开(公告)日：2024-01-11

申请号：US18338523

申请日：2023-06-21

Applicant: Samsung Display Co., LTD.

Inventor： Je Won YOO ,  Min Joo KIM ,  Hoon KIM ,  Seung Kyu LEE ,  Yong Sik HWANG

IPC: H01L33/48 ,  H01L25/16

CPC classification number: H01L33/483 ,  H01L25/167 ,  H01L2933/0033

Abstract: A display device according to an embodiment of the disclosure includes a channel formation pattern disposed on a base layer and including a first channel and a second channel spaced apart from each other; and a light emitting element disposed on the channel formation pattern. The light emitting element is aligned between the first channel and the second channel.

公开(公告)号：US20230030535A1

公开(公告)日：2023-02-02

申请号：US17837708

申请日：2022-06-10

Applicant: Samsung Display Co., LTD.

Inventor： Seung Kyu LEE ,  Won Tae KIM ,  Hoon KIM ,  Yong Sik HWANG

IPC: H01L27/15 ,  H01L33/24 ,  H01L33/44 ,  H01L33/50 ,  H01L33/58

Abstract: A display device comprises sub-pixels, a bank disposed on a substrate and disposed at a boundary between the sub-pixels, a wavelength control layer including wavelength conversion layers disposed in a region surrounded by the bank and a light transmitting layer disposed in the sub-pixels, a color filter layer disposed on the wavelength control layer, and light emitting element layers disposed between the substrate and the wavelength control layer, the light emitting layers including a light emitting element disposed in one of the sub-pixels, and connection electrodes connected to ends of the light emitting element. Each of the wavelength conversion layers contacts at least one of the connection electrodes

公开(公告)号：US20220238058A1

公开(公告)日：2022-07-28

申请号：US17717977

申请日：2022-04-11

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Si Beak PYO ,  Seung Kyu LEE ,  Choon Yul OH ,  Jun Ho HWANG

IPC: G09G3/20 ,  G09G3/3233

Abstract: A display device includes: a target pixel; observation target pixels located adjacent to the target pixel; and a grayscale corrector for converting an input grayscale value corresponding to the target pixel with reference to observation target grayscale values corresponding to the observation target pixels. The grayscale corrector includes: a light emitting pixel counter for providing a number of light emitting pixels by counting a number of observation target pixels that exceeds a reference value; and a grayscale converter for providing a converted grayscale value by converting the input grayscale value, based on the number of light emitting pixels.

公开(公告)号：US20210248956A1

公开(公告)日：2021-08-12

申请号：US17248443

申请日：2021-01-25

Applicant: Samsung Display Co., Ltd.

Inventor： Si Beak PYO ,  Seung Kyu LEE ,  Young Uk HWANG

IPC: G09G3/32

Abstract: A display device includes: a plurality of pixels to receive data voltages based on converted grayscales; and a grayscale converter to: calculate first compensation offsets based on positions of the pixels and input grayscales for the pixels; convert the first compensation offsets into second compensation offsets according to a maximum luminance weight based on an input maximum luminance; and calculate the converted grayscales by applying the second compensation offsets to the input grayscales.