公开(公告)号：US10937364B2

公开(公告)日：2021-03-02

申请号：US16597771

申请日：2019-10-09

Applicant: Samsung Display Co., Ltd.

Inventor： Young Wan Seo ,  Min Kyu Woo ,  Cheol Gon Lee ,  Mee Hye Jung

IPC: G09G3/3233

Abstract: A display device includes a plurality of pixels, each of the pixels including an organic light emitting diode and a plurality of transistors configured to control a current applied to the organic light emitting diode, wherein an aging frame includes an aging period in which at least one of the plurality of transistors is aged, wherein at least one of the plurality of transistors is in a turn-off state in the aging period, and wherein a potential difference between one electrode and an other electrode of a transistor of the plurality of transistors is equal to or greater than a reference potential difference, the reference potential difference being a difference value between a high level and a low level of a first power source voltage.

公开(公告)号：US09673806B2

公开(公告)日：2017-06-06

申请号：US14334104

申请日：2014-07-17

Applicant: Samsung Display Co. Ltd.

Inventor： Jong Hee Kim ,  Hyun Joon Kim ,  Cheol Gon Lee ,  Jae Keun Lim ,  Chong Chul Chai

IPC: G09G5/00 ,  H03K17/16 ,  H03K17/687 ,  H03K17/00 ,  G09G3/3266

CPC classification number: H03K17/162 ,  G09G3/3266 ,  G09G2310/0286 ,  G09G2320/045 ,  H03K17/002 ,  H03K17/6871

Abstract: A gate driver includes a plurality of stages connected to each other in a cascade manner, where each of the stages includes an input unit which connects a first input terminal and a first node and includes a first input transistor and a second input transistor, where an output terminal of the first input transistor and an input terminal of the second input transistor are connected to a second node, and the input unit further includes a storage capacitor which connects the first input terminal and the second node.

公开(公告)号：US12198630B2

公开(公告)日：2025-01-14

申请号：US18424074

申请日：2024-01-26

Applicant: Samsung Display Co., LTD.

Inventor： Hee Rim Song ,  Hee Jean Park ,  Cheol Gon Lee

IPC: G09G3/3233 ,  G06V40/13 ,  H10K59/126 ,  H10K59/131 ,  H10K59/60

Abstract: A display includes a light emitting element that emits light, a driving transistor that controls a driving current flowing through the light emitting element, a light sensing element spaced apart from the light emitting element and generating a photocurrent according to external light, a first sensing transistor that controls a sensing current flowing to a readout line according to a voltage of a gate electrode of the first sensing transistor, which is electrically connected to an electrode of the light sensing element, and a shielding electrode disposed around a side of the gate electrode of the first sensing transistor in plan view.

公开(公告)号：US12004384B2

公开(公告)日：2024-06-04

申请号：US18051951

申请日：2022-11-02

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jun Hyun Park ,  Hyeong Seok Kim ,  Young Wan Seo ,  Yu Jin Lee ,  Cheol Gon Lee

IPC: H10K59/126 ,  G09G3/3233 ,  H01L27/12

CPC classification number: H10K59/126 ,  G09G3/3233 ,  H01L27/1248 ,  G09G2300/0426 ,  G09G2300/0809 ,  G09G2320/0233

Abstract: A display device includes a display panel having a general area including first subpixels, and a sensor area including second subpixels and light-transmitting area. Each of the first subpixels and the second subpixels includes a first active layer disposed on a substrate and formed of a first material, a first gate layer disposed on the first active layer, a second gate layer disposed on the first gate layer, a second active layer disposed on the second gate layer and formed of a second material different from the first material, a third gate layer disposed on the second active layer, and a light-blocking layer disposed between the substrate and the first active layer and overlapping the second active layer in a thickness direction.

公开(公告)号：US11211003B2

公开(公告)日：2021-12-28

申请号：US16524744

申请日：2019-07-29

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Young Wan Seo ,  Min Kyu Woo ,  An Su Lee ,  Cheol Gon Lee

IPC: G09G3/30 ,  G09G3/3241 ,  G09G3/3291 ,  G09G3/36

Abstract: In a display device including pixels, each of the pixels may include: a first transistor coupled to a first node, a first power supply voltage line, and a second node; and a light-emitting diode coupled to the second node and a second power supply voltage line. Each image frame may include at least two emission enable periods for the light-emitting diode, and at least one emission inhibit period between the at least two emission enable periods.

公开(公告)号：US11164533B2

公开(公告)日：2021-11-02

申请号：US17093876

申请日：2020-11-10

Applicant: Samsung Display Co. Ltd.

Inventor： Jun Hyun Park ,  Sun Kwang Kim ,  Young Wan Seo ,  Cheol Gon Lee ,  Yang Hwa Choi

IPC: G09G3/3291 ,  G09G3/3258 ,  G09G3/3233 ,  G09G3/3266

Abstract: A display device includes a data line to which a data voltage is applied, a first driving voltage line to which a first driving voltage is applied, a second driving voltage line to which a second driving voltage is applied, and a pixel connected to the first and second driving voltage lines. The pixel includes a first transistor to control a driving current according to a voltage applied to a first node, a light emitting element between the first transistor and the first driving voltage line, and a capacitor between the first node and the second driving voltage line. The first driving voltage has a first high-level voltage during a first initialization period, the first driving voltage has a first mid-level voltage lower than the first high level voltage during a threshold-voltage-storage period, and the first driving voltage has a first low-level voltage during a second initialization period.

公开(公告)号：US20210280659A1

公开(公告)日：2021-09-09

申请号：US17139676

申请日：2020-12-31

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jun Hyun Park ,  Hyeong Seok Kim ,  Young Wan Seo ,  Yu Jin Lee ,  Cheol Gon Lee

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

Abstract: A display device includes a display panel having a general area including first subpixels, and a sensor area including second subpixels and light-transmitting area. Each of the first subpixels and the second subpixels includes a first active layer disposed on a substrate and formed of a first material, a first gate layer disposed on the first active layer, a second gate layer disposed on the first gate layer, a second active layer disposed on the second gate layer and formed of a second material different from the first material, a third gate layer disposed on the second active layer, and a light-blocking layer disposed between the substrate and the first active layer and overlapping the second active layer in a thickness direction.

公开(公告)号：US10222664B2

公开(公告)日：2019-03-05

申请号：US15346424

申请日：2016-11-08

Applicant: Samsung Display Co. Ltd.

Inventor： Il Joo Kim ,  Cheol Gon Lee ,  Gun Woo Yang ,  Hyun Young Choi ,  Tae Ho Kang ,  Chol Ho Kim ,  Hae Ryeong Park ,  Dong Il Yoo ,  Yong Woo Lee ,  Mee Hye Jung ,  Joong Gun Chong

IPC: G02F1/1333 ,  G02F1/1343 ,  G02F1/1362 ,  G02F1/1368

Abstract: A liquid crystal display device includes a substrate, a first coupling electrode disposed on the substrate, a first insulating layer disposed on the first coupling electrode, a second coupling electrode disposed on the first insulating layer and capacitively coupled to the first coupling electrode, a second insulating layer disposed on the second coupling electrode, and a pixel electrode including first and second sub-pixel electrodes, which are disposed on the second insulating layer and are electrically insulated from each other, where the first sub-pixel electrode is electrically connected to the first coupling electrode via a first contact hole, which is defined in the first and second insulating layers, and the second sub-pixel electrode is electrically connected to the second coupling electrode via a second contact hole which is defined in the second insulating layer.

公开(公告)号：US12293714B2

公开(公告)日：2025-05-06

申请号：US18108823

申请日：2023-02-13

Applicant: Samsung Display Co., LTD.

Inventor： Hee Rim Song ,  Hee Jean Park ,  Yu Jin Lee ,  Cheol Gon Lee ,  Mu Kyung Jeon

IPC: G09G3/3233 ,  G06V40/13 ,  H10K39/34 ,  H10K59/131

Abstract: A display device includes display pixels each including a light emitting part including a light emitting element and a pixel driver applying a driving current to the light emitting element, and light sensing pixels each including a light sensing part including an optical element and a sensing driver, the sensing driver applying a sensing current to a sensing line according to a photocurrent of the optical element. The sensing driver includes a first sensing transistor controlling the sensing current flowing through the sensing line according to a voltage of a first electrode of the optical element, and a second sensing transistor initializing the first electrode of the optical element to a first level voltage. A channel layer of the first sensing transistor and a channel layer of the second sensing transistor are made of different materials.

公开(公告)号：US11694612B2

公开(公告)日：2023-07-04

申请号：US17831323

申请日：2022-06-02

Applicant: Samsung Display Co., Ltd.

Inventor： Cheol Gon Lee ,  Hee Jean Park ,  Hee Rim Song ,  Yu Jin Lee ,  Mu Kyung Jeon

IPC: G09G3/32 ,  G06V40/13

CPC classification number: G09G3/32 ,  G06V40/1318 ,  G09G2300/0413 ,  G09G2300/0809 ,  G09G2330/028

Abstract: A display device includes: pixel circuits arranged in a first direction on each of a first pixel row and a second pixel row; dummy sensor circuits arranged in a predetermined interval between the pixel circuits on the first pixel row; sensor circuits arranged in the interval between the pixel circuits on the second pixel row; light emitting elements disposed on the pixel circuits and connected to each of the pixel circuits; first light receiving elements on at least some of the pixel circuits of the first pixel row and the dummy sensor circuits; and second light receiving elements on at least some of the pixel circuits of the second pixel row and the sensor circuits. One of the sensor circuits is connected to at least two of the first light receiving elements and at least two of the second light receiving elements.