公开(公告)号：US20220199936A1

公开(公告)日：2022-06-23

申请号：US17556799

申请日：2021-12-20

Applicant: Samsung Display Co., Ltd.

Inventor： Jong Hee PARK ,  Hyoung Sik KIM

IPC: H01L51/52 ,  H01L27/32 ,  H01L51/00 ,  H01L51/56

Abstract: An embodiment of a display device comprises a base substrate; an anode electrode disposed on the base substrate; a cathode electrode facing the anode electrode; and an organic light emitting layer disposed between the anode electrode and the cathode electrode, wherein the anode electrode includes: a first anode electrode disposed between the base substrate and the organic light emitting layer, a second anode electrode disposed between the first anode electrode and the organic light emitting layer, and a third anode electrode disposed between the second anode electrode and the organic light emitting layer, wherein a width of the first anode electrode is equal to or greater than a width of the second anode electrode.

公开(公告)号：US20220380668A1

公开(公告)日：2022-12-01

申请号：US17826064

申请日：2022-05-26

Applicant: Samsung Display Co., Ltd.

Inventor： Jong Hee PARK ,  Hyoung Sik KIM ,  Sang Hyuk LEE ,  Yong Hoe KIM ,  Young Kwang KIM ,  Dong Ho KANG ,  Hyun-Cheol SHIN ,  Sung-Tae KIM ,  Dong Hun LEE ,  Min Hye LEE ,  Byung Su LEE ,  Ki Su JUNG

IPC: C09K13/06 ,  H01L27/32 ,  H01L51/00 ,  H01L51/52 ,  H01L51/56

Abstract: An etchant composition includes: an inorganic acid compound at 9.0 wt % to 9.9 wt %; an inorganic salt compound at 5.0 wt % to 10.0 wt %; an organic acid compound at 35 wt % to 45 wt %; a lactate-based compound at 10 wt % to 20 wt %; a nitrogen cyclic compound containing oxygen at 0.1 wt % to 1.0 wt %; and a remaining amount of water such that a total weight of the etchant composition is 100 wt %, wherein the inorganic acid compound is an etchant composition having an acid dissociation constant (pKa) value of −1.0 to −3.0.

公开(公告)号：US20230292550A1

公开(公告)日：2023-09-14

申请号：US17975809

申请日：2022-10-28

Applicant: Samsung Display Co., LTD.

Inventor： Hyoung Sik KIM ,  Jong Hee PARK ,  Hong Sick PARK ,  Woo Jin CHO

IPC: H01L27/32 ,  H01L51/56 ,  H01L27/12

CPC classification number: H01L27/3262 ,  H01L27/3223 ,  H01L27/3276 ,  H01L51/56 ,  H01L27/124 ,  H01L2227/323

Abstract: A display device includes: a substrate; a thin-film transistor disposed on the substrate and including a semiconductor layer; an interlayer insulating layer disposed on the thin-film transistor; a data conductive layer disposed on the interlayer insulating layer and including an auxiliary electrode and a transistor electrode connected to the semiconductor layer of the thin-film transistor, a via layer disposed on the data conductive layer; a pixel electrode layer disposed on the via layer and including: a pixel electrode and a dummy pixel electrode separated from the pixel electrode; an intermediate layer disposed on the pixel electrode layer; and a common electrode disposed on the intermediate layer. The auxiliary electrode includes a main conductive layer and an upper sub-conductive layer. Side surfaces of the main conductive layer of the auxiliary electrode are disposed inner than side surfaces of the upper sub-conductive layer of the auxiliary electrode.