公开(公告)号：US20240265867A1

公开(公告)日：2024-08-08

申请号：US18435919

申请日：2024-02-07

Applicant: Samsung Display Co., Ltd.

Inventor： Jaehoon Lee ,  Jihyun Ka ,  Seokje Seong ,  Joosun Yoon

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0452 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2320/02 ,  G09G2330/021 ,  G09G2330/028

Abstract: Provided are a pixel configured to receive a first initialization voltage during a first period between a writing period of a first scan period and a first emission period of a frame and to receive a second initialization voltage different from the first initialization voltage from a start time point of a second period before a second emission period of a second scan period subsequent to the first scan period, a display apparatus including the pixel, and a driving method of the display apparatus.

公开(公告)号：US11955079B2

公开(公告)日：2024-04-09

申请号：US17891948

申请日：2022-08-19

Applicant: Samsung Display Co., Ltd.

Inventor： Soongi Kwon ,  Jihyun Ka ,  Minjeong Kim ,  Minku Lee ,  Seunghee Lee ,  Hyeongjun Jin

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/043 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2320/0233

Abstract: A pixel includes a display element, a driving transistor, a storage capacitor, a scan transistor, and a gate control circuit. The display element may emit light for an emission period, wherein the display element includes an anode and a cathode. The driving transistor may control an amount of a driving current flowing through the display element, wherein the driving transistor includes a first gate and a second gate. The storage capacitor is electrically connected to the first gate of the driving transistor. The scan transistor may be turned on for a data-write period for transferring a data voltage to the driving transistor. The lower gate control circuit may electrically connect the second gate of the driving transistor to the anode of the display element for the emission period, and may apply a bias voltage to the second gate of the driving transistor for the data-write period.

公开(公告)号：US20240071305A1

公开(公告)日：2024-02-29

申请号：US18226770

申请日：2023-07-27

Applicant: Samsung Display Co., Ltd.

Inventor： Minjoo Kim ,  Jihyun Ka ,  Chulkyu Kang ,  Soongi Kwon ,  Sujin Kim ,  Minwoo Byun ,  Seoni Jeong ,  Chaehan Hyun ,  Sungchan Hwang

IPC: G09G3/3233 ,  G09G3/3275

CPC classification number: G09G3/3233 ,  G09G3/3275 ,  G09G2320/0233

Abstract: Provided is a display apparatus in which initialization and compensation of a pixel is implemented through a pixel including a thin film transistor connected to a node between a driving transistor and a light emitting diode.

公开(公告)号：US11903278B2

公开(公告)日：2024-02-13

申请号：US17676071

申请日：2022-02-18

Applicant: Samsung Display Co., Ltd.

Inventor： Hyunji Cha ,  Jihyun Ka ,  Sukyoung Kim ,  Hwayoung Song ,  Youngsoo Yoon ,  Dongeup Lee ,  Wonse Lee ,  Yunkyeong In ,  Donghyeon Jang ,  Yujin Jeon

IPC: H01L29/12 ,  H10K59/131 ,  H10K59/121

CPC classification number: H10K59/131 ,  H10K59/1213 ,  H10K59/1216

Abstract: A display panel includes: a substrate including a first area and a second area surrounding the first area; a first initialization voltage line extending in a first direction and electrically connected to the first display element; a second initialization voltage line extending in the first direction and electrically connected to the second display element; an auxiliary voltage line arranged on a layer different from layers on which the first initialization voltage line and the second initialization voltage line are arranged and electrically connecting the first initialization voltage line and the second initialization voltage line that are apart from each other; and a first insulating layer covering the first initialization voltage line, the second initialization voltage line, and the auxiliary voltage line and arranged below the plurality of display elements.

公开(公告)号：US11871622B2

公开(公告)日：2024-01-09

申请号：US17697188

申请日：2022-03-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Nackhyeon Keum ,  Jihyun Ka ,  Haeyeon Lee

IPC: G09G3/3233 ,  H10K59/123 ,  H10K59/121 ,  H01L27/12

CPC classification number: H10K59/123 ,  G09G3/3233 ,  H10K59/1213 ,  G09G2300/0842 ,  G09G2340/0435 ,  H01L27/124

Abstract: A display device includes a first light-emitting element disposed in a first display area, a second light-emitting element disposed in a second display area, a first pixel circuit disposed in the first display area, where the first pixel circuit output a first driving current for driving at least one selected from the first light-emitting element and the second light-emitting element, a first emission control transistor which connects the first pixel circuit to the first light-emitting element, and a second emission control transistor which connects the first pixel circuit to the second light-emitting element.

公开(公告)号：US11678532B2

公开(公告)日：2023-06-13

申请号：US16919787

申请日：2020-07-02

Applicant: Samsung Display Co., Ltd.

Inventor： Hyunji Cha ,  Donghyeon Jang ,  Jihyun Ka ,  Wonkyu Kwak ,  Sukyoung Kim ,  Seungwoo Sung ,  Hwayoung Song ,  Youngsoo Yoon ,  Dongeup Lee ,  Wonse Lee ,  Yunkyeong In ,  Yujin Jeon ,  Jintae Jeong

IPC: H01L27/32

CPC classification number: H01L27/3276

Abstract: A display device includes: a substrate including a transmission area and a display area surrounding the transmission area; a plurality of display elements in the display area; a plurality of first horizontal lines and a plurality of second horizontal lines each extending in a first direction and spaced apart from each other with the transmission area therebetween; a plurality of first vertical lines and a plurality of second vertical lines each extending in a second direction intersecting with the first direction and spaced apart from each other with the transmission area therebetween; and a first connection line connecting at least one of the plurality of first vertical lines to at least one of the plurality of second vertical lines and detouring around the transmission area, wherein the first connection line is on a same layer as at least one of the plurality of first horizontal lines.

公开(公告)号：US10923547B2

公开(公告)日：2021-02-16

申请号：US16400113

申请日：2019-05-01

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jihyun Ka ,  Wonkyu Kwak ,  Hansung Bae

IPC: H01L27/32 ,  H01L31/112 ,  G06K9/00 ,  H01L27/12 ,  H01L51/50 ,  H01L29/786 ,  H01L31/113 ,  H01L51/52

Abstract: An organic light emitting diode display device includes a substrate, a plurality of organic light emitting diodes on the substrate, a thin film encapsulation layer on the organic light emitting diodes, and at least one sensor on the thin film encapsulation layer, the sensor including a sensing gate electrode, an oxide semiconductor layer overlapping the sensing gate electrode, a sensing source electrode connected to the oxide semiconductor layer, and a sensing drain electrode spaced apart from the sensing source electrode and connected to the oxide semiconductor layer.

公开(公告)号：US12217684B2

公开(公告)日：2025-02-04

申请号：US18435919

申请日：2024-02-07

Applicant: Samsung Display Co., Ltd.

Inventor： Jaehoon Lee ,  Jihyun Ka ,  Seokje Seong ,  Joosun Yoon

IPC: G09G3/3233

Abstract: Provided are a pixel configured to receive a first initialization voltage during a first period between a writing period of a first scan period and a first emission period of a frame and to receive a second initialization voltage different from the first initialization voltage from a start time point of a second period before a second emission period of a second scan period subsequent to the first scan period, a display apparatus including the pixel, and a driving method of the display apparatus.

公开(公告)号：US20240265869A1

公开(公告)日：2024-08-08

申请号：US18475332

申请日：2023-09-27

Applicant: Samsung Display Co., Ltd.

Inventor： Minwoo Byun ,  Wonkyu Kwak ,  Jihyun Ka ,  Minjoo Kim ,  Donghwan Jeon ,  Seoni Jeong ,  Sungchan Hwang

IPC: G09G3/3233 ,  G09G3/3275

CPC classification number: G09G3/3233 ,  G09G3/3275 ,  G09G2310/0202 ,  G09G2320/0247

Abstract: A display apparatus including pixels, each including a driving transistor comprising a first terminal, a second terminal, a first gate, and a second gate electrically connected to the second terminal. Each pixel further includes a first transistor electrically connected to a driving voltage line and the first terminal of the driving transistor, a second transistor electrically connected to the second terminal of the driving transistor and a light-emitting diode, a first capacitor electrically connected to the first gate of the driving transistor and the second terminal of the driving transistor, and a second capacitor electrically connected to the driving voltage line and the second terminal of the driving transistor. A timing at which a first gate signal is applied to a gate of the first transistor and a timing at which a second gate signal is applied to a gate of the second transistor are different from each other.

公开(公告)号：US11557520B2

公开(公告)日：2023-01-17

申请号：US17101189

申请日：2020-11-23

Applicant: Samsung Display Co., Ltd.

Inventor： Jihyun Ka ,  Wonkyu Kwak ,  Hansung Bae

IPC: H01L21/66 ,  H01L27/32 ,  H01L27/12 ,  H01L29/417 ,  H01L29/24 ,  H01L29/786 ,  G02F1/1362 ,  G02F1/1368

Abstract: A display device includes a pixel connected to a data line, a data pad connected to the data line, and a first test area. The first test area includes a test control line transmitting a test control signal, a test signal line transmitting a test signal, and a first switch connected to the data pad. The first switch includes a gate electrode connected to the test control line, first and second semiconductor layers overlapping the gate electrode, a source electrode connected to the first and second semiconductor layers, and a drain electrode spaced from the source electrode and connected to the first and second semiconductor layers. The source electrode and the drain electrode are connected to the test signal line and data pad, respectively. One of the first or second semiconductor layers includes an oxide semiconductor and the other of the first or second semiconductor layer includes a silicon-based semiconductor.