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.