公开(公告)号：US11922883B2

公开(公告)日：2024-03-05

申请号：US18063203

申请日：2022-12-08

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：US11830412B2

公开(公告)日：2023-11-28

申请号：US17953288

申请日：2022-09-26

Applicant: Samsung Display Co., Ltd.

Inventor： Kyong Hwan Oh ,  Ji Hyun Ka ,  Ki Myeong Eom ,  Hai Jung In ,  Jin Jeon ,  Won Kyu Kwak ,  Hyun Lee ,  Hwan Soo Jang ,  Jin Tae Jeong

IPC: G09G3/3233 ,  G09G3/20

CPC classification number: G09G3/2092 ,  G09G3/3233 ,  G09G2310/0251 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2310/08 ,  G09G2340/0435

Abstract: A display device includes pixels coupled to first scan lines, second scan lines, emission control lines, and data lines; a first scan driver to supply a scan signal to each of the first scan lines at a first frequency to drive the display device at a first driving frequency, and to supply the scan signal to each of the first scan lines at a second frequency to drive the display device at a second driving frequency lower than the first driving frequency; a second scan driver to supply a scan signal to each of the second scan lines at the first frequency to drive the display device at the first driving frequency, and to supply the scan signal to each of the second scan lines at the second frequency to drive the display device at the second driving frequency; an emission driver to supply an emission control signal to each of the emission control lines at the first frequency; and a data driver to supply a data signal to each of the data lines in response to the scan signal supplied to each of the first scan lines.

公开(公告)号：US20230260455A1

公开(公告)日：2023-08-17

申请号：US18141040

申请日：2023-04-28

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

CPC classification number: G09G3/3225 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/3208 ,  G09G2300/0861 ,  G09G2310/0286

Abstract: A stage including: an output circuit connected to a first node and a second node; an input connected to a third node and a fourth node; and a plurality of signal processors between the output and the input, the plurality of signal processors electrically connecting the first node and the third node and electrically connecting the second node and the fourth node, wherein the input includes: a seventh transistor connected between a first input terminal and the fourth node and having a gate electrode connected to a second input terminal; a plurality of eighth transistors serially connected between the third node and the second input terminal and having gate electrodes connected to the fourth node; and a ninth transistor connected between the third node and a second power source and having a gate electrode connected to the second input terminal.

公开(公告)号：US11640788B2

公开(公告)日：2023-05-02

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 ,  G09G3/3208

Abstract: A stage including: an output circuit connected to a first node and a second node; an input connected to a third node and a fourth node; and a plurality of signal processors between the output and the input, the plurality of signal processors electrically connecting the first node and the third node and electrically connecting the second node and the fourth node, wherein the input includes: a seventh transistor connected between a first input terminal and the fourth node and having a gate electrode connected to a second input terminal; a plurality of eighth transistors serially connected between the third node and the second input terminal and having gate electrodes connected to the fourth node; and a ninth transistor connected between the third node and a second power source and having a gate electrode connected to the second input terminal.

公开(公告)号：US11257896B2

公开(公告)日：2022-02-22

申请号：US16859917

申请日：2020-04-27

Applicant: Samsung Display Co., Ltd.

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

IPC: H01L27/32 ,  H01L27/12 ,  G09G3/3266 ,  G09G3/3233 ,  G09G3/3225

Abstract: A display device is disclosed, and the display device includes a substrate including first to third display regions, the second and the third display regions being spaced from each other, each of the second and third display regions having an area smaller than that of the first display region and being continuous to the first display region, first to third pixels in the first to third display regions, first to third lines connected to the first to third pixels, and a dummy part configured to compensate for a difference between a load value of the first lines and load values of the second and third lines, wherein the second display region includes a first sub-region adjacent to the first display region and a second sub-region spaced from the first display region, and the third display region includes a third sub-region adjacent to the first display region and a fourth sub-region spaced from the first display region.

公开(公告)号：US20210343227A1

公开(公告)日：2021-11-04

申请号：US17367396

申请日：2021-07-04

Applicant: Samsung Display Co., Ltd.

Inventor： Kyong Hwan Oh ,  Ji Hyun Ka ,  Ki Myeong Eom ,  Hai Jung In ,  Jin Jeon ,  Won Kyu Kwak ,  Hyun Lee ,  Hwan Soo Jang ,  Jin Tae Jeong

IPC: G09G3/20

Abstract: A display device includes pixels coupled to first scan lines, second scan lines, emission control lines, and data lines; a first scan driver to supply a scan signal to each of the first scan lines at a first frequency to drive the display device at a first driving frequency, and to supply the scan signal to each of the first scan lines at a second frequency to drive the display device at a second driving frequency lower than the first driving frequency; a second scan driver to supply a scan signal to each of the second scan lines at the first frequency to drive the display device at the first driving frequency, and to supply the scan signal to each of the second scan lines at the second frequency to drive the display device at the second driving frequency; an emission driver to supply an emission control signal to each of the emission control lines at the first frequency; and a data driver to supply a data signal to each of the data lines in response to the scan signal supplied to each of the first scan lines.

公开(公告)号：US11164497B2

公开(公告)日：2021-11-02

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 Yong Lee ,  Jin Tae Jeong ,  Seung Ji Cha

IPC: H05K1/02 ,  H05K1/11 ,  H05K3/10 ,  H05K3/36 ,  G02F1/1333 ,  G02F1/1345 ,  G09G3/20 ,  H01L23/48 ,  H01L23/498 ,  H01L51/00 ,  H01L27/32 ,  H05K1/18

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：US11151926B2

公开(公告)日：2021-10-19

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: 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：US10909934B2

公开(公告)日：2021-02-02

申请号：US16687475

申请日：2019-11-18

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/34 ,  G09G3/20 ,  G09G3/3266 ,  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：US10665175B2

公开(公告)日：2020-05-26

申请号：US15845907

申请日：2017-12-18

Applicant: Samsung Display Co., Ltd.

Inventor： Tae Hoon Kim ,  Ji Hyun Ka ,  Hwan Soo Jang ,  Jin Tae Jeong ,  Min Woo Byun

IPC: G06F3/038 ,  G09F5/00 ,  G09G3/3291 ,  G09G3/3283 ,  G09G3/3266

Abstract: A display device includes: a first pixel region including first pixels, each of the first pixels including a driving transistor to be initialized by a first initialization power source supplied from a first power line; a second pixel region including second pixels, each of the second pixels including a driving transistor to be initialized by a second initialization power source supplied from a second power line; and a power supplier to supply the first initialization power source and the second initialization power source, the first initialization power source and the second initialization power source having a same voltage level when the display device is driven in a first mode, and the first initialization power source and the second initialization power source having different voltage levels during at least one frame period when the display device is driven in a second mode.