公开(公告)号：US20230141774A1

公开(公告)日：2023-05-11

申请号：US17869722

申请日：2022-07-20

Applicant: Samsung Display Co., LTD.

Inventor： Beom Soo PARK ,  YOUNGMIN KWON ,  Wang Jo LEE ,  Jin-Whan JUNG

IPC: H01L27/32

CPC classification number: H01L27/3262 ,  H01L27/3276 ,  H01L27/3265

Abstract: A light-emitting display device includes a first transistor including a driving gate electrode, a first electrode, and a second electrode, a storage capacitor including a first electrode and a second electrode connected to the driving gate electrode, a second transistor connected to the second electrode of the storage capacitor, a first hold capacitor including a first electrode connected to the second electrode of the storage capacitor and a second electrode to which a driving voltage is applied, a second hold capacitor including a first electrode connected to the second electrode of the storage capacitor and a second electrode to which a driving voltage is applied, a third transistor connecting the driving gate electrode and the second electrode of the first transistor, and a light-emitting diode. Conductive layers in which the first electrode of the first hold capacitor and the first electrode of the second hold capacitor are disposed are different.

公开(公告)号：US20250054442A1

公开(公告)日：2025-02-13

申请号：US18667355

申请日：2024-05-17

Applicant: Samsung Display Co., Ltd.

Inventor： Seung Chan LEE ,  Wang Jo LEE

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3283 ,  H01L27/02 ,  H01L27/12

Abstract: A pixel is disclosed that includes a light emitting element connected between a first power line and a second power line; a first transistor connected between the first power line and a first electrode of the light emitting element, and having a gate electrode connected to a first node; a second transistor connected between a data line and a second node, and having a gate electrode electrically connected to a first scan line; a third transistor connected between the second node and a third node, having a gate electrode electrically connected to a first light emission control line; and a first capacitor connected between the first node and the third node.

公开(公告)号：US20250072266A1

公开(公告)日：2025-02-27

申请号：US18667197

申请日：2024-05-17

Applicant: Samsung Display Co., LTD.

Inventor： Changwook KIM ,  Beohm Rock CHOI ,  Jun Hee LEE ,  Minjung ANN ,  Wang Jo LEE ,  Hyun Duck CHO ,  Kook Hyun CHOI ,  Yechan CHOI

IPC: H10K59/80 ,  H10K59/122 ,  H10K102/00

Abstract: A light emitting display device includes a substrate, an anode located on the substrate, a pixel defining layer located on the anode with a first opening defined therethrough to overlap the anode, a light emitting layer located within the first opening of the pixel defining layer, a cathode located on the light emitting layer and the pixel defining layer, an encapsulation layer located on the cathode, a scattering layer located on the encapsulation layer and including scattering particles, with a scattering layer opening defined therethrough to overlap the first opening in a plan view at least in part, and a light blocking layer located on the light blocking layer with a second opening defined therethrough to overlap the first opening in a plan view, where at least one selected from the first opening, the scattering layer opening, and the second opening has an oval shape.

公开(公告)号：US20240153456A1

公开(公告)日：2024-05-09

申请号：US18404210

申请日：2024-01-04

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dong Hwi KIM ,  Na Young KIM ,  Chul Ho KIM ,  Wang Jo LEE ,  Jin JEON

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  H10K59/121 ,  H10K59/124 ,  H10K59/131

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  H10K59/1213 ,  H10K59/1216 ,  H10K59/124 ,  H10K59/131 ,  H01L27/1251

Abstract: A pixel circuit includes first to fifth transistors, a capacitor, and a light emitting element. The first transistor is coupled between first and second power lines, and includes a gate electrode coupled to a first node and a back-gate electrode coupled to a second node. The second transistor is coupled between a data line and the first node, and includes a gate electrode coupled to a first scan line. The third transistor is coupled between a third power line and the first node, and includes a gate electrode coupled to a reference scan line. The fourth transistor is coupled between a second node and a fourth power line, and includes a gate electrode coupled to a second scan line. The fifth transistor is coupled between a first power line and the one electrode of the first transistor, and includes a gate electrode coupled to a light-emitting control line.

公开(公告)号：US20250072222A1

公开(公告)日：2025-02-27

申请号：US18624012

申请日：2024-04-01

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kook Hyun CHOI ,  Changwook KIM ,  Changhyun BACK ,  Minjung ANN ,  Wang Jo LEE ,  Jun Hee LEE ,  Hyun Duck CHO ,  Beohm Rock CHOI ,  Yechan CHOI

IPC: H10K59/122 ,  H10K59/35 ,  H10K59/80

Abstract: A light emitting display device includes a substrate, anodes disposed on the substrate, a pixel defining layer having first openings overlapping each of the anodes, light emitting layers each disposed within the first openings of the pixel defining layer, a cathode disposed on the light emitting layers and the pixel defining layer, an encapsulation layer disposed on the cathode, and a light blocking layer disposed on the encapsulation layer and including second openings each overlapping the first openings. One unit pixel includes two light emitting areas of a first color, one light emitting area of a second color, and one light emitting area of a third color. The light emitting areas of the first color have a diamond shape, the second color and the third color light emitting areas each have a rectangular shape, and at least one second opening has an oval shape.

公开(公告)号：US20230154406A1

公开(公告)日：2023-05-18

申请号：US18155233

申请日：2023-01-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dong Hwi KIM ,  Na Yong KIM ,  Chul Ho KIM ,  Wang Jo LEE ,  Jin JEON

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  H10K59/124 ,  H10K59/131 ,  H10K59/121

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  H10K59/124 ,  H10K59/131 ,  H10K59/1213 ,  H10K59/1216 ,  H01L27/1255

Abstract: A pixel circuit includes first to fifth transistors, a capacitor, and a light emitting element. The first transistor is coupled between first and second power lines, and includes a gate electrode coupled to a first node and a back-gate electrode coupled to a second node. The second transistor is coupled between a data line and the first node, and includes a gate electrode coupled to a first scan line. The third transistor is coupled between a third power line and the first node, and includes a gate electrode coupled to a reference scan line. The fourth transistor is coupled between a second node and a fourth power line, and includes a gate electrode coupled to a second scan line. The fifth transistor is coupled between a first power line and the one electrode of the first transistor, and includes a gate electrode coupled to a light-emitting control line.

公开(公告)号：US20230033692A1

公开(公告)日：2023-02-02

申请号：US17700863

申请日：2022-03-22

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Seung Chan LEE ,  Beom Soo PARK ,  Wang Jo LEE ,  Seong Jun LEE ,  Yoon Ah CHOI

IPC: G09G3/3233

Abstract: A pixel includes: a driving transistor including a gate electrode coupled to a first node, a first electrode coupled to a second node, and a second electrode coupled to a third node; a first initialization transistor coupled between the first node and a first initialization voltage line, and including a gate electrode coupled to a scan line, where the first initialization voltage line is configured to supply a first initialization voltage; a first emission control transistor coupled between a fourth node and a fifth node and including a gate electrode coupled to the first node; a second emission control transistor coupled between the third node and the fifth node and including a gate electrode coupled to an emission control line; and a light-emitting element coupled between the fourth node and a driving low voltage line. The driving transistor and the first emission control transistor are different types of transistors.

公开(公告)号：US20230209923A1

公开(公告)日：2023-06-29

申请号：US17878147

申请日：2022-08-01

Applicant: Samsung Display Co., LTD.

Inventor： Beom Soo PARK ,  Seung Chan LEE ,  Wang Jo LEE ,  Donghee CHOI

IPC: H01L27/32 ,  H01L51/56

CPC classification number: H01L27/3276 ,  H01L27/3246 ,  H01L51/56 ,  H01L2227/323

Abstract: A light emitting display device includes: a substrate; a transistor disposed on the substrate; an anode connected to the transistor; an emission layer disposed on the anode; a common voltage line disposed on the substrate; and a cathode disposed on the emission layer and the common voltage line, where a thickness of a first portion of the cathode overlapping the emission layer is different from a thickness of a second portion of the cathode not overlapping the emission layer.

公开(公告)号：US20220077263A1

公开(公告)日：2022-03-10

申请号：US17340236

申请日：2021-06-07

Applicant: Samsung Display Co., LTD.

Inventor： Seung Chan LEE ,  Beom Soo PARK ,  Wang Jo LEE ,  Jae Bum CHO ,  Jae Ik LIM

IPC: H01L27/32

Abstract: A display device includes: a substrate; a polycrystalline semiconductor layer which includes a first electrode, a channel, and a second electrode of a driving transistor disposed on the substrate; a first gate insulating layer disposed on the polycrystalline semiconductor layer; a gate electrode of the driving transistor which is disposed on the first gate insulating layer and overlaps the channel; a lower first scan line disposed on the first gate insulating layer; a second gate insulating layer disposed on the gate electrode and on the lower first scan line; a first lower boost electrode disposed on the second gate insulating layer; a first interlayer-insulating layer disposed on the first lower boost electrode; an oxide semiconductor layer disposed on the first interlayer-insulating layer and including a first upper boost electrode overlapping the first lower boost electrode; and a first connection electrode connecting the gate electrode and the first upper boost electrode.

公开(公告)号：US20200328268A1

公开(公告)日：2020-10-15

申请号：US16780665

申请日：2020-02-03

Applicant: Samsung Display Co., Ltd.

Inventor： Dong-Hwi KIM ,  Na-Young KIM ,  Chul Ho KIM ,  Wang Jo LEE ,  Jin JEON

IPC: H01L27/32

Abstract: A display device includes: a substrate including a display area at which a pixel including a light emitting element is located and a peripheral area surrounding the display area; and a common voltage line on the substrate, the common voltage line configured to provide a common voltage to the pixel, the common voltage line including: a peripheral common voltage line on the peripheral area of the substrate to surround the display area and connected to a common electrode of the light emitting element; and a plurality of display common voltage lines crossing the display area and each contacting different portions of the peripheral common voltage line, the display common voltage lines being spaced apart from the common electrode of the light emitting element.