公开(公告)号：US11710455B2

公开(公告)日：2023-07-25

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 ,  H10K59/123

CPC classification number: G09G3/3258 ,  G09G3/3225 ,  H10K59/123 ,  G09G2300/0819 ,  G09G2310/0216 ,  G09G2310/0251 ,  G09G2310/0262 ,  G09G2320/0214 ,  G09G2320/0238 ,  G09G2320/045

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：US11587505B2

公开(公告)日：2023-02-21

申请号：US17693025

申请日：2022-03-11

Applicant: Samsung Display Co., Ltd.

Inventor： Ji Hyun Ka ,  Tae Hoon Kwon ,  Ki Myeong Eom ,  Chung Yi ,  Se Byung Chae ,  Deok Jun Choi ,  Moon Sang Hwang

IPC: G09G3/3275 ,  G09G3/3225

Abstract: A display device includes: a display region including a first pixel region, a second pixel region, and a third pixel region; a dummy region including a first dummy region disposed between the second pixel region and the third pixel region; first, second, and third pixels respectively arranged in the first pixel region, the second pixel region, and the third pixel region in a matrix of vertical lines and horizontal lines; a data converter configured to: receive first image data including effective data corresponding to the display region and dummy data corresponding to the dummy region; and generate second image data by converting a gray scale value of dummy data corresponding to at least one region of the first dummy region in the first image data into a predetermined first gray scale value, the first gray scale value being between a lowest gray scale value and a highest gray scale value.

公开(公告)号：US11462173B2

公开(公告)日：2022-10-04

申请号：US17146358

申请日：2021-01-11

Applicant: Samsung Display Co., Ltd.

Inventor： Tae Hoon Kwon ,  Ji Hyun Ka ,  Nack Hyeon Keum ,  Jae Jin Song ,  Kwang Sae Lee

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/22

Abstract: A display device includes: a substrate including a display area and a non-display area; pixels connected to first scan lines, second scan lines, third scan lines, and emission control lines; a first scan driver supplying a first scan signal to the first scan lines; a second scan driver supplying a second scan signal to some of the second scan lines and supplying a third scan signal to the third scan lines; an emission driver supplying an emission control signal to the emission control lines; a first pad and a second pad provided in the non-display area; a first power line connected to the first pad, the first power line transferring a first voltage to the first scan driver and the emission driver; and a second power line connected to the second pad, the second power line transferring a second voltage to the second scan driver.

公开(公告)号：US10909909B2

公开(公告)日：2021-02-02

申请号：US16440863

申请日：2019-06-13

Applicant: Samsung Display Co., Ltd.

Inventor： Dong Eup Lee ,  Ki Myeong Eom ,  Ji Hyun Ka

IPC: G09G3/32 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/3225

Abstract: A display device includes: a display panel including a gate line, an emission signal line, a data line, and a pixel coupled to the gate line, the emission signal line, and the data line; a gate driver configured to provide a gate signal to the gate line; an emission driver configured to provide an emission signal to the emission signal line; a data driver configured to provide a data signal to the data line; and a power supplier configured to provide the display panel with a power voltage for driving the pixel, wherein the emission driver is configured to start operating at a first time point in response to an emission enable signal provided from the data driver, and the gate driver is configured to start operating at a second time point in response to a gate enable signal provided from the data driver.

公开(公告)号：US20200302850A1

公开(公告)日：2020-09-24

申请号：US16897990

申请日：2020-06-10

Applicant: SAMSUNG DISPLAY CO, LTD.

Inventor： TAE HOON KWON ,  Ji Hyun Ka ,  Byung Sun Kim ,  Yang Wan Kim ,  Hyung Jun Park ,  Su Jin Lee ,  Jae Tong Lee ,  Jin Tae Jeong ,  Seung Ji Cha

IPC: G09G3/20 ,  G02F1/1345 ,  H01L51/00 ,  H05K1/11

Abstract: A display device is provided. The display device comprises a display panel including a plurality of signal pads and one or more dummy pads, and at least one flexible wiring board providing signals to the signal pads, wherein a maximum bias period of signals provided to a pair of adjacent signal pads with at least one dummy pad interposed therebetween is longer than a maximum bias period of signals provided to a pair of adjacent signal pads with no dummy pad disposed therebetween.

公开(公告)号：US10770535B2

公开(公告)日：2020-09-08

申请号：US16714545

申请日：2019-12-13

Applicant: SAMSUNG DISPLAY CO., LTD.

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

IPC: H01L29/08 ,  H01L27/32 ,  G09G3/3233 ,  H01L51/52

Abstract: A display device includes a substrate having a display area and a non-display area, a plurality of pixels in the display area, scan lines for supplying a scan signal to the pixels, the scan lines extending in a first direction, data lines for supplying a data signal to the pixels, the data lines extending in a second direction crossing the first direction, and a first dummy part in the non-display area, adjacent to an outermost pixel, connected to an outermost data line of the display area, forming a parasitic capacitor with the outermost pixel, and including a first dummy data line and a first dummy power pattern extending in parallel to the data lines.

公开(公告)号：US10769991B2

公开(公告)日：2020-09-08

申请号：US16177779

申请日：2018-11-01

Applicant: Samsung Display Co., Ltd.

Inventor： Ji Hyun Ka ,  Tae Hoon Kwon ,  Ki Myeong Eom ,  Chung Yi ,  Se Byung Chae ,  Deok Jun Choi ,  Moon Sang Hwang

IPC: G09G3/3275 ,  G09G3/3225

Abstract: A display device includes: a display region including a first pixel region, a second pixel region, and a third pixel region; a dummy region including a first dummy region disposed between the second pixel region and the third pixel region; first, second, and third pixels respectively arranged in the first pixel region, the second pixel region, and the third pixel region in a matrix of vertical lines and horizontal lines; a data converter configured to: receive first image data including effective data corresponding to the display region and dummy data corresponding to the dummy region; and generate second image data by converting a gray scale value of dummy data corresponding to at least one region of the first dummy region in the first image data into a predetermined first gray scale value, the first gray scale value being between a lowest gray scale value and a highest gray scale value.

公开(公告)号：US10482829B2

公开(公告)日：2019-11-19

申请号：US15683498

申请日：2017-08-22

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/34 ,  G09G3/3266 ,  G09G3/20 ,  G09G3/02

Abstract: A display device includes first and second pixel areas spaced apart from each other so that corresponding scan lines are separate from each other, a first non-pixel area at a periphery of the first pixel area, a second non-pixel area at a periphery of the second pixel area and opposite to the first non-pixel area with at least one pixel area interposed therebetween, first scan lines in the first pixel area, second scan lines in the second pixel area, a first scan driver in the first non-pixel area and connected to the first scan lines, a second scan driver in the second non-pixel area and connected to the second scan lines, first wires in the first non-pixel area and connected to the first scan driver, second wires in the second non-pixel area and connected to the second scan driver; and connecting wires connecting the first wires and second wires.

公开(公告)号：US10482818B2

公开(公告)日：2019-11-19

申请号：US15882734

申请日：2018-01-29

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G5/10 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/20

Abstract: A display device includes pixels coupled to scan lines, emission control lines, and data lines, a scan driver configured to supply scan signals to the pixels through the scan lines, an emission driver configured to supply emission control signals to the pixels through the emission control lines, and a data driver configured to supply data signals to the pixels through the data lines, wherein the emission driver is configured to supply the emission control signals for each one of sub-periods in one frame period, and wherein a width of the emission control signals in any one sub-period from among the sub-periods is different from that of the emission control signals in another sub-period from among the sub-periods.

公开(公告)号：US10354578B2

公开(公告)日：2019-07-16

申请号：US15434196

申请日：2017-02-16

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: G09G5/02 ,  G09G3/20 ,  G09G3/34 ,  G09G3/3225 ,  G09G3/3233 ,  H01L27/32

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.