公开(公告)号：US20200258453A1

公开(公告)日：2020-08-13

申请号：US16786045

申请日：2020-02-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ki Ju Im ,  Tae Young Kim ,  Hyo Jung Kim ,  Jong Woo Park ,  Young Tae Choi ,  Hyun Cheol Hwang

IPC: G09G3/3266 ,  G09G3/3233 ,  G09G3/3275 ,  H01L27/32

Abstract: A display device includes: a substrate; a gate pattern disposed on the substrate; an oxide semiconductor layer disposed on the substrate, the oxide semiconductor layer includes a channel region that overlaps with the gate pattern; and an insulating film disposed on the gate pattern, the insulating film includes majority carrier supporting ions, wherein the gate pattern includes a plurality of gate holes, wherein the gate holes are formed inside a region of the gate pattern that does not overlap with the channel region of the oxide semiconductor layer, and wherein the channel region of the oxide semiconductor layer includes the majority carrier supporting ions.

公开(公告)号：US20190392758A1

公开(公告)日：2019-12-26

申请号：US16358700

申请日：2019-03-20

Applicant: Samsung Display Co., Ltd.

Inventor： Tae Young Kim ,  Jong Woo Park ,  Hyo Jung Kim ,  Ki Ju Im ,  Young Tae Choi

IPC: G09G3/3233 ,  G09G3/3291 ,  G09G3/3266 ,  H01L29/78 ,  H01L27/32

Abstract: A display device including an emitting element. A first transistor includes a first electrode electrically connected to a first supply voltage line, a second electrode electrically connected to the emitting element, and a gate electrode receiving a data signal, the first transistor being configured to transfer a driving current to the emitting element based on the data signal. A capacitor is connected between the gate electrode of the first transistor and the first supply voltage line. An electric field generating element is connected between the second electrode of the first transistor and the gate electrode of the first transistor and includes ferroelectrics.

公开(公告)号：US11308874B2

公开(公告)日：2022-04-19

申请号：US16358700

申请日：2019-03-20

Applicant: Samsung Display Co., Ltd.

Inventor： Tae Young Kim ,  Jong Woo Park ,  Hyo Jung Kim ,  Ki Ju Im ,  Young Tae Choi

IPC: G09G3/3233 ,  G09G3/3266 ,  H01L29/78 ,  G09G3/3291 ,  H01L27/32

Abstract: A display device including an emitting element. A first transistor includes a first electrode electrically connected to a first supply voltage line, a second electrode electrically connected to the emitting element, and a gate electrode receiving a data signal, the first transistor being configured to transfer a driving current to the emitting element based on the data signal. A capacitor is connected between the gate electrode of the first transistor and the first supply voltage line. An electric field generating element is connected between the second electrode of the first transistor and the gate electrode of the first transistor and includes ferroelectrics.

公开(公告)号：US11475835B2

公开(公告)日：2022-10-18

申请号：US17226817

申请日：2021-04-09

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyo Jung Kim ,  Tae Young Kim ,  Yong Sung Park ,  Jong Woo Park ,  Mi Seon Seo ,  Keun Soo Lee ,  Ki Ju Im ,  Dae Youn Cho ,  Young Tae Choi ,  Hyun Cheol Hwang

IPC: G09G3/3233 ,  H01L27/32

Abstract: A display device includes a plurality of pixels. Each pixel includes a first transistor that controls an amount of current received from a first power supply voltage line connected via a second node to an organic light emitting diode in response to a voltage of a first node, a second transistor connected between a data line and the second node and that includes a first gate electrode connected to a first scan line, a light emitting line connected to a gate electrode of at least one light emitting transistor located in a current path between the first power supply voltage line and the organic light emitting diode, and a seventh transistor connected between one of at least one second gate electrode of the second transistor and the light emitting line. Accordingly, a threshold voltage of a switching transistor included in each of the plurality of pixels may be negatively shifted.

公开(公告)号：US11081063B2

公开(公告)日：2021-08-03

申请号：US16372927

申请日：2019-04-02

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dae Youn Cho ,  Sang Kil Kim ,  Hyo Jung Kim ,  Jong Woo Park ,  Dong Gi Ahn ,  Jong Won Lee ,  Ju Hee Lee ,  Young Tae Choi

IPC: G09G3/20 ,  G09G3/3291 ,  G09G3/3266 ,  G09G3/3233 ,  H01L27/32 ,  H01L51/50 ,  G09G3/00

Abstract: An organic light emitting display device includes scan lines arranged in horizontal lines, data lines intersecting the scan lines, a pixel array including pixels coupled to the scan lines and the data lines, the pixels including at least first color pixels, a panel tester including switching elements coupled to first ends of the data lines, the switching elements including at least first and second switching elements, and a first line coupled to the first switching elements and a second line coupled to the second switching elements. Data lines of K-th to (K+L)-th (where K and L are natural numbers) first color pixels arranged in a predetermined horizontal line are coupled to the first line through the first switching elements, and data lines of at least a part of remaining first color pixels arranged in the predetermined horizontal line are coupled to the second line through the second switching elements.

公开(公告)号：US10573267B2

公开(公告)日：2020-02-25

申请号：US15791737

申请日：2017-10-24

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： June Hwan Kim ,  Hyo Jung Kim

IPC: G11C19/00 ,  G09G3/36 ,  G11C19/28

Abstract: A scan driver includes a plurality of clock lines which receive clock signals in different phases, a plurality of stages connected with at least one of the plurality of clock lines, an initialization line which receives an initialization pulse, a first control transistor, which is connected between the initialization line and each of the plurality of clock lines, and which is turned on when the initialization pulse is supplied, and a second control transistor, which is connected between the initialization line and each of the plurality of stages, and which is turned on when the initialization pulse is supplied.

公开(公告)号：US11605355B2

公开(公告)日：2023-03-14

申请号：US17372929

申请日：2021-07-12

Applicant: Samsung Display Co., Ltd.

Inventor： Dae Youn Cho ,  Sang Kil Kim ,  Hyo Jung Kim ,  Jong Woo Park ,  Dong Gi Ahn ,  Jong Won Lee ,  Ju Hee Lee ,  Young Tae Choi

IPC: G09G3/00 ,  G09G3/3291 ,  G09G3/3266 ,  G09G3/3233 ,  G09G3/20 ,  H01L27/32 ,  H01L51/50

Abstract: An organic light emitting display device includes scan lines arranged in horizontal lines, data lines intersecting the scan lines, a pixel array including pixels coupled to the scan lines and the data lines, the pixels including at least first color pixels, a panel tester including switching elements coupled to first ends of the data lines, the switching elements including at least first and second switching elements, and a first line coupled to the first switching elements and a second line coupled to the second switching elements. Data lines of K-th to (K+L)-th (where K and L are natural numbers) first color pixels arranged in a predetermined horizontal line are coupled to the first line through the first switching elements, and data lines of at least a part of remaining first color pixels arranged in the predetermined horizontal line are coupled to the second line through the second switching elements.

公开(公告)号：US11232754B2

公开(公告)日：2022-01-25

申请号：US16786045

申请日：2020-02-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ki Ju Im ,  Tae Young Kim ,  Hyo Jung Kim ,  Jong Woo Park ,  Young Tae Choi ,  Hyun Cheol Hwang

IPC: G09G3/3266 ,  G09G3/3233 ,  H01L27/32 ,  H01L29/786 ,  H01L29/06 ,  G09G3/3275

Abstract: A display device includes: a substrate; a gate pattern disposed on the substrate; an oxide semiconductor layer disposed on the substrate, the oxide semiconductor layer includes a channel region that overlaps with the gate pattern; and an insulating film disposed on the gate pattern, the insulating film includes majority carrier supporting ions, wherein the gate pattern includes a plurality of gate holes, wherein the gate holes are formed inside a region of the gate pattern that does not overlap with the channel region of the oxide semiconductor layer, and wherein the channel region of the oxide semiconductor layer includes the majority carrier supporting ions.

公开(公告)号：US11017719B2

公开(公告)日：2021-05-25

申请号：US16567578

申请日：2019-09-11

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyo Jung Kim ,  Tae Young Kim ,  Yong Sung Park ,  Jong Woo Park ,  Mi Seon Seo ,  Keun Soo Lee ,  Ki Ju Im ,  Dae Youn Cho ,  Young Tae Choi ,  Hyun Cheol Hwang

IPC: G09G3/3233 ,  H01L27/32

Abstract: A display device includes a plurality of pixels. Each pixel includes a first transistor that controls an amount of current received from a first power supply voltage line connected via a second node to an organic light emitting diode in response to a voltage of a first node, a second transistor connected between a data line and the second node and that includes a first gate electrode connected to a first scan line, a light emitting line connected to a gate electrode of at least one light emitting transistor located in a current path between the first power supply voltage line and the organic light emitting diode, and a seventh transistor connected between one of at least one second gate electrode of the second transistor and the light emitting line. Accordingly, a threshold voltage of a switching transistor included in each of the plurality of pixels may be negatively shifted.

公开(公告)号：US20210256906A1

公开(公告)日：2021-08-19

申请号：US17226817

申请日：2021-04-09

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyo Jung Kim ,  Tae Young Kim ,  Yong Sung Park ,  Jong Woo Park ,  Mi Seon Seo ,  Keun Soo Lee ,  Ki Ju Im ,  Dae Youn Cho ,  Young Tae Choi ,  Hyun Cheol Hwang

IPC: G09G3/3233 ,  H01L27/32

Abstract: A display device includes a plurality of pixels. Each pixel includes a first transistor that controls an amount of current received from a first power supply voltage line connected via a second node to an organic light emitting diode in response to a voltage of a first node, a second transistor connected between a data line and the second node and that includes a first gate electrode connected to a first scan line, a light emitting line connected to a gate electrode of at least one light emitting transistor located in a current path between the first power supply voltage line and the organic light emitting diode, and a seventh transistor connected between one of at least one second gate electrode of the second transistor and the light emitting line. Accordingly, a threshold voltage of a switching transistor included in each of the plurality of pixels may be negatively shifted.