公开(公告)号：US11476316B2

公开(公告)日：2022-10-18

申请号：US17290847

申请日：2019-04-30

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Tae Hoon Yang ,  Ki Bum Kim ,  Jong Chan Lee ,  Woong Hee Jeong

IPC: H01L27/32 ,  H01L51/56 ,  G09G3/3233 ,  H01L27/12

Abstract: A pixel including: a light emitting element; a first transistor between a first node and the light emitting element to control current flowing from a first driving power source through the light emitting element to a second driving power source; a second transistor between a data line and the first transistor, and tamed on by a first scan signal; a third transistor between the first transistor and first node, and turned on by the first scan signal; and a fourth transistor between an initialization power line and the first node, and turned on by a second scan signal, wherein the fourth transistor is a tunneling field effect transistor including a source and drain area that are spaced apart from each other and have opposite conductivities, a channel area between the source area and drain area, and a gate electrode on the channel area with a gate insulating layer therebetween.

公开(公告)号：US11276352B2

公开(公告)日：2022-03-15

申请号：US17075472

申请日：2020-10-20

Applicant: Samsung Display Co., LTD. ,  Konkuk University Industrial Cooperation Corp

Inventor： Tae Hoon Yang ,  Joon Ho Lee ,  Kee Chan Park ,  Ki Bum Kim ,  Hyang A Park ,  Jong Chan Lee ,  Woong Hee Jeong

IPC: G09G3/3266 ,  G09G3/20

Abstract: A display device includes: a plurality of pixels, each of which is connected to a corresponding one of a plurality of scan lines, and a scan driver including a plurality of stages, each of which supplies a scan signal to a corresponding one of the scan lines, each of the stages includes: a node controller which supplies a second output signal of a previous stage to a first node based on an input signal of a first clock terminal or a first output signal of the previous stage, a first inverter connected between the first node and a second node, a buffer which supplies a voltage of the second node to a first output terminal based on an input signal of a second clock terminal, and a second inverter connected between the first output terminal and a second output terminal.

公开(公告)号：US10777137B2

公开(公告)日：2020-09-15

申请号：US16372296

申请日：2019-04-01

Applicant: Samsung Display Co., Ltd.

Inventor： Tae Hoon Yang ,  Ki Bum Kim ,  Jong Chan Lee ,  Woong Hee Jeong

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3283 ,  H01L27/32

Abstract: A pixel including a light emitting element, a first transistor connected between a first node and the light emitting element to control current flowing from a first power supply to a second power supply, a second transistor connected between a data line and the first transistor to be turned on by an ith first scan signal, a third transistor including a P-type TFT connected between the first transistor and the first node to be turned on by the ith first scan signal and, a fourth transistor including an N-type TFT connected between the first node and an initialization power supply line to be turned on by an i−1th scan signal, and a first connection line connected between the third and fourth transistors to electrically connect semiconductor patterns thereof, in which the first connection line is disposed on the third and fourth transistors and contacts the semiconductor patterns thereof.

公开(公告)号：US12155021B2

公开(公告)日：2024-11-26

申请号：US17222434

申请日：2021-04-05

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Wook Lee ,  Ki Nyeng Kang ,  Ki Bum Kim ,  Jin Taek Kim ,  Kyung Tae Chae

IPC: H01L33/62 ,  G09G3/32 ,  H01L25/075 ,  H01L25/16 ,  H01L27/12 ,  H01L27/15 ,  H01L33/18 ,  H01L33/36 ,  H01L33/38 ,  H01L33/54

Abstract: A pixel includes a first insulating film disposed on a substrate, a light emitting element disposed on the first insulating film, a second insulating film disposed on the light emitting element to cover at least a portion of the light emitting element, a first contact electrode and a second contact electrode, each of the first and second contact electrodes including at least a portion disposed on the first insulating film and connected to the light emitting element, and an encapsulation layer including a photosensitive material.

公开(公告)号：US11469274B2

公开(公告)日：2022-10-11

申请号：US16927369

申请日：2020-07-13

Applicant: Samsung Display Co., LTD.

Inventor： Woong Hee Jeong ,  Ki Bum Kim ,  Jin Yeong Kim ,  Hyang A Park ,  Tae Hoon Yang ,  Jong Chan Lee

IPC: H01L27/32 ,  H01L51/52 ,  G02F1/13 ,  G02F1/1335 ,  G02F1/1362

Abstract: A display device includes light transmitting areas including a first light transmitting area and light emitting areas around the light transmitting areas and including a first light emitting area disposed around the first light transmitting area, wherein the first light emitting area includes a first-first light emitting area adjacent to a first portion of each of the light transmitting areas, a first-second light emitting area adjacent to a second portion of each of the light transmitting areas, a first-third light emitting area adjacent to a third portion of each of the light transmitting areas, and a first-fourth light emitting area disposed adjacent to a fourth portion of each of the light transmitting areas. The first-first to first-fourth light emitting areas each include at least one of first to third light emitting portions to emit light of first to third colors, respectively.

公开(公告)号：US20220102422A1

公开(公告)日：2022-03-31

申请号：US17449114

申请日：2021-09-28

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Wook Lee ,  Kyung Tae Chae ,  Ki Bum Kim ,  Jin Taek Kim

IPC: H01L27/15 ,  H01L33/00 ,  H01L33/24 ,  H01L33/44 ,  H01L33/38 ,  H01L33/42 ,  H01L33/50 ,  H01L33/58 ,  H01L33/60

Abstract: A display device according to one embodiment of the present disclosure includes: a base layer including a display area; a circuit layer including a conductive pattern in a pixel area of the display area; a first insulating film on the circuit layer, the first insulating film being opened in a contact portion on the conductive pattern; a reflective film on the first insulating film and including a first opening that corresponds to the contact portion; a second insulating film on the reflective film and including a second opening overlapping the first opening; and a display layer on the second insulating film, connected to the conductive pattern through the contact portion, and including a first electrode, a second electrode, and a light-emitting element overlapping the reflective film, wherein, in the contact portion, the reflective film has a wider opening than the second insulating film.

公开(公告)号：US12302690B2

公开(公告)日：2025-05-13

申请号：US17316505

申请日：2021-05-10

Applicant: Samsung Display Co., Ltd.

Inventor： Ki Bum Kim ,  Jin Taek Kim ,  Sang Hoon Lee ,  Hyun Wook Lee

IPC: H01L27/15 ,  H01L33/38 ,  H10K50/813 ,  H10K50/822 ,  H10K59/122 ,  H10K59/124 ,  H10K71/00

Abstract: A display device and a method of fabricating a display device are provided, the display device comprising a first substrate, first and second electrodes on the first substrate and spaced apart from each other, a first insulating layer covering portions of the first and second electrodes, light-emitting elements on the first insulating layer, a first contact electrode on the first electrode and in contact with first end portions of the light-emitting elements, a second insulating layer on the light-emitting elements and covering a first end portion of the first contact electrode, and a second contact electrode between the second insulating layer and the second electrode, and in contact with second end portions of the light-emitting elements.

公开(公告)号：US12183855B2

公开(公告)日：2024-12-31

申请号：US18440459

申请日：2024-02-13

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Wook Lee ,  Ki Bum Kim ,  Jin Taek Kim ,  Jung Eun Hong

IPC: H01L33/38 ,  H01L27/15 ,  H01L33/62

Abstract: A display device includes a substrate, a first electrode and a second electrode which are spaced apart from each other in a second direction, light-emitting elements spaced apart from each other in the first direction, a first contact electrode electrically contacting the light-emitting elements, and a second contact electrode electrically contacting the light-emitting elements. The first contact electrode electrically contacts the first electrode through a first contact portion disposed on the first electrode, the second contact electrode electrically contacts the second electrode through a second contact portion disposed on the second electrode, the first contact portion is disposed on an end portion in the first direction of the first contact electrode, and the second contact portion is disposed on an end portion in the first direction of the second contact electrode.

公开(公告)号：US12161027B2

公开(公告)日：2024-12-03

申请号：US17236995

申请日：2021-04-21

Applicant: Samsung Display Co., Ltd.

Inventor： Ki Bum Kim ,  Kyung Tae Chae ,  Ki Nyeng Kang ,  Jin Taek Kim ,  Hyun Wook Lee

IPC: H10K59/131 ,  H10K59/123

Abstract: A display device including: a substrate; a conductive layer on the substrate and including a first voltage line and a second voltage line extending in a first direction; a first electrode and a second electrode on the conductive layer, extending in the first direction, and spaced apart from each other; a plurality of light-emitting elements on the first electrode and the second electrode; and an electrode pattern on the conductive layer and separated from the first electrode. The electrode pattern overlaps the first voltage line in a thickness direction and directly contacts the first voltage line.

公开(公告)号：US11916171B2

公开(公告)日：2024-02-27

申请号：US17327192

申请日：2021-05-21

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Wook Lee ,  Ki Bum Kim ,  Jin Taek Kim ,  Jung Eun Hong

IPC: H01L33/38 ,  H01L27/15 ,  H01L33/62

CPC classification number: H01L33/387 ,  H01L27/156 ,  H01L33/62

Abstract: A display device includes a substrate, a first electrode and a second electrode which are spaced apart from each other in a second direction, light-emitting elements spaced apart from each other in the first direction, a first contact electrode electrically contacting the light-emitting elements, and a second contact electrode electrically contacting the light-emitting elements. The first contact electrode electrically contacts the first electrode through a first contact portion disposed on the first electrode, the second contact electrode electrically contacts the second electrode through a second contact portion disposed on the second electrode, the first contact portion is disposed on an end portion in the first direction of the first contact electrode, and the second contact portion is disposed on an end portion in the first direction of the second contact electrode.