公开(公告)号：US20240334731A1

公开(公告)日：2024-10-03

申请号：US18595603

申请日：2024-03-05

Applicant: Samsung Display Co., Ltd.

Inventor： Jungho Choi ,  Jiyoung Moon ,  Pilgu Kang ,  Dongchan Kim ,  Hakchoong Lee

IPC: H10K50/16 ,  H10K50/17 ,  H10K101/40 ,  H10K102/00

CPC classification number: H10K50/166 ,  H10K50/171 ,  H10K2101/40 ,  H10K2102/351

Abstract: A light-emitting device includes a first electrode, a second electrode facing the first electrode, and an interlayer arranged between the first electrode and the second electrode and comprising an emission layer. The interlayer further includes a first layer arranged between the emission layer and the second electrode, and a second layer arranged between the first layer and the emission layer. The first layer includes a first metal-containing material, the second layer includes a second metal-containing material and a metal-free material, and a difference between a work function (W/F) of the first layer and a work function (W/F) of the second layer is in a range of about 0.05 eV to about 0.2 eV.

公开(公告)号：US11774231B2

公开(公告)日：2023-10-03

申请号：US17343576

申请日：2021-06-09

Applicant: Samsung Display Co., Ltd.

Inventor： Jungho Choi

IPC: G01R27/26 ,  G01B7/06

CPC classification number: G01B7/085 ,  G01R27/2605

Abstract: A method comprising: measuring a plurality of measurement capacitances using a capacitance measurement device; calculating a plurality of deposition coefficients for the deposition parameter corresponding to each of the plurality of the measurement capacitances, a plurality of exposure coefficients for the exposure parameter corresponding to each of the plurality of the measurement capacitances, and a plurality of etching coefficients for the etching parameter corresponding to each of the plurality of the measurement capacitances; calculating a corrected deposition coefficient for the plurality of the deposition coefficients, a corrected exposure coefficient for the plurality of the exposure coefficients, and a corrected etching coefficient for the plurality of the etching coefficients; and calculating the capacitance based on a capacitance calculation equation including the deposition parameter, the corrected deposition coefficient, the exposure parameter, the corrected exposure coefficient, the etching parameter, and the corrected etching coefficient.

公开(公告)号：US11183663B2

公开(公告)日：2021-11-23

申请号：US16914154

申请日：2020-06-26

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jungho Choi

IPC: H01L51/52

Abstract: One or more exemplary embodiments provide a display apparatus including a substrate; an encapsulation substrate facing the substrate; a display portion disposed between the substrate and the encapsulation substrate and including a display region; a metal layer disposed on the substrate and surrounding the display region; and a sealing portion formed to overlap the metal layer and coupling the substrate to the encapsulation substrate, wherein the metal layer includes a first region disposed outside of the display region at one side of the display region and a second region disposed outside of the display region at another side, which is opposite to the one side, of the display region, and the metal layer has a different light reflectivity in the first region and the second region.

公开(公告)号：US20200328371A1

公开(公告)日：2020-10-15

申请号：US16914154

申请日：2020-06-26

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jungho Choi

IPC: H01L51/52

Abstract: One or more exemplary embodiments provide a display apparatus including a substrate; an encapsulation substrate facing the substrate; a display portion disposed between the substrate and the encapsulation substrate and including a display region; a metal layer disposed on the substrate and surrounding the display region; and a sealing portion formed to overlap the metal layer and coupling the substrate to the encapsulation substrate, wherein the metal layer includes a first region disposed outside of the display region at one side of the display region and a second region disposed outside of the display region at another side, which is opposite to the one side, of the display region, and the metal layer has a different light reflectivity in the first region and the second region.

公开(公告)号：US10734601B2

公开(公告)日：2020-08-04

申请号：US14855308

申请日：2015-09-15

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jungho Choi

IPC: H01L27/32 ,  H01L51/52

Abstract: One or more exemplary embodiments provide a display apparatus including a substrate; an encapsulation substrate facing the substrate; a display portion disposed between the substrate and the encapsulation substrate and including a display region; a metal layer disposed on the substrate and surrounding the display region; and a sealing portion formed to overlap the metal layer and coupling the substrate to the encapsulation substrate, wherein the metal layer includes a first region disposed outside of the display region at one side of the display region and a second region disposed outside of the display region at another side, which is opposite to the one side, of the display region, and the metal layer has a different light reflectivity in the first region and the second region.