公开(公告)号：US20240286165A1

公开(公告)日：2024-08-29

申请号：US18406431

申请日：2024-01-08

Applicant: Samsung Display Co., LTD.

Inventor： JONGSUNG KIM ,  HONGGI MIN ,  SANGJIN LEE ,  HEE JUNG LEE ,  MYUNGSOO HUH

IPC: B05C5/02 ,  B05D1/02

CPC classification number: B05C5/0291 ,  B05D1/02

Abstract: A manufacturing method of a display device includes forming a first droplet on a first region of a substrate by nozzles, moving the nozzles onto a second region of the substrate spaced apart in a first direction from the first region, forming a second droplet on the second region, calculating a first distance between the first and second droplets, moving the nozzles onto a third region of the substrate spaced apart in a direction opposite to the first direction from the second region, forming a third droplet on the third region, moving the nozzles onto a fourth region of the substrate spaced apart in the first direction from the third region, forming a fourth droplet on the fourth region, calculating a second distance between the third and the fourth droplets, and calculating a jetting velocity of each of the nozzles based on the first distance and the second distance.

公开(公告)号：US20240326419A1

公开(公告)日：2024-10-03

申请号：US18509511

申请日：2023-11-15

Applicant: Samsung Display Co., Ltd.

Inventor： HONGGI MIN ,  JONGSUNG KIM ,  SANGJIN LEE ,  HEE JUNG LEE ,  MYUNGSOO HUH

IPC: B41J2/045 ,  B41J2/145

CPC classification number: B41J2/04593 ,  B41J2/145

Abstract: An inkjet printing apparatus includes a head pack including a plurality of heads, wherein each of the plurality of heads includes a plurality of nozzles, wherein each of the plurality of heads extends in a first direction and is disposed adjacent to each other in a second direction intersecting the first direction, and a volume of a droplet ejected from each of the plurality of nozzles is alternately set to a first volume larger than a reference volume and a second volume smaller than the reference volume for each of the plurality of heads along the second direction.

公开(公告)号：US20230292553A1

公开(公告)日：2023-09-14

申请号：US18321413

申请日：2023-05-22

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： SANGJIN PARK ,  YOUNGDAE KIM ,  JEONGSEON KIM ,  SANGJIN LEE ,  AHYEON LEE

IPC: H10K59/121 ,  G09G3/3233 ,  H10K71/00

CPC classification number: H10K59/1213 ,  G09G3/3233 ,  H10K71/00 ,  G09G2300/0819 ,  G09G2320/0257 ,  H01L27/1237

Abstract: An organic light-emitting display device includes a driving transistor configured to control current to an organic light-emitting diode from a power voltage line, a compensation transistor configured to diode-connect the driving transistor in response to a voltage applied to a compensation gate electrode of the driving transistor, and a gate insulating layer interposed between a driving active region of the driving transistor and the driving gate electrode, and between a compensation active region of the compensation transistor and the compensation gate electrode. A dielectric constant in a first portion of the gate insulating layer between the driving active region and the driving gate electrode is greater than a dielectric constant in a second portion of the gate insulating layer between the compensation active region and the compensation gate electrode.

公开(公告)号：US20210343816A1

公开(公告)日：2021-11-04

申请号：US17111897

申请日：2020-12-04

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： SANGJIN PARK ,  YOUNGDAE KIM ,  JEONGSEON KIM ,  SANGJIN LEE ,  AHYEON LEE

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

Abstract: An organic light-emitting display device includes a driving transistor configured to control current to an organic light-emitting diode from a power voltage line, a compensation transistor configured to diode-connect the driving transistor in response to a voltage applied to a compensation gate electrode of the driving transistor, and a gate insulating layer interposed between a driving active region of the driving transistor and the driving gate electrode, and between a compensation active region of the compensation transistor and the compensation gate electrode. A dielectric constant in a first portion of the gate insulating layer between the driving active region and the driving gate electrode is greater than a dielectric constant in a second portion of the gate insulating layer between the compensation active region and the compensation gate electrode.