公开(公告)号：US20190355791A1

公开(公告)日：2019-11-21

申请号：US16530213

申请日：2019-08-02

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jin-Seock KIM ,  Jong-Hee PARK ,  Bong-Won LEE ,  Seung-Bae KANG ,  Sang-Gab KIM ,  Jeong-Min PARK ,  Hyun-Eok SHIN

IPC: H01L27/32 ,  H01L51/50 ,  H01L51/52

Abstract: An OLED display device includes a substrate including a display region and a pad region, a display structure in the display region on the substrate, and a pad electrode structure in the pad region on the substrate, the pad electrode structure having a first pad electrode on the substrate, a first insulation layer covering opposite lateral portions of the first pad electrode and exposing a portion of an upper surface of the first pad electrode, a second pad electrode on the first pad electrode and on the first insulation layer, the second pad electrode having a step portion where the first pad electrode and the first insulation layer are overlapped, and a third pad electrode on the second pad electrode and on the first insulation layer, the third electrode covering the second pad electrode.

公开(公告)号：US20180061895A1

公开(公告)日：2018-03-01

申请号：US15678640

申请日：2017-08-16

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jin-Seock KIM ,  Jong-Hee PARK ,  Bong-Won LEE ,  Seung-Bae KANG ,  Sang-Gab KIM ,  Jeong-Min PARK ,  Hyun-Eok SHIN

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/50

CPC classification number: H01L27/322 ,  H01L27/3246 ,  H01L27/3258 ,  H01L27/3276 ,  H01L51/504 ,  H01L51/5237

Abstract: An OLED display device includes a substrate including a display region and a pad region, a display structure in the display region on the substrate, and a pad electrode structure in the pad region on the substrate, the pad electrode structure having a first pad electrode on the substrate, a first insulation layer covering opposite lateral portions of the first pad electrode and exposing a portion of an upper surface of the first pad electrode, a second pad electrode on the first pad electrode and on the first insulation layer, the second pad electrode having a step portion where the first pad electrode and the first insulation layer are overlapped, and a third pad electrode on the second pad electrode and on the first insulation layer, the third electrode covering the second pad electrode.

公开(公告)号：US20180053788A1

公开(公告)日：2018-02-22

申请号：US15674647

申请日：2017-08-11

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Bong-Won LEE ,  Jong-Hee PARK ,  Jin-Seock KIM ,  Seung-Bae KANG

IPC: H01L27/12 ,  H01L21/3213

CPC classification number: H01L27/124 ,  G02F1/133345 ,  G02F1/134309 ,  G02F1/13439 ,  G02F1/1368 ,  G02F2201/121 ,  G02F2201/123 ,  H01L21/32134 ,  H01L21/32135 ,  H01L21/32138 ,  H01L27/1248 ,  H01L27/1259 ,  H01L27/3248 ,  H01L51/5209 ,  H01L51/5215 ,  H01L51/5218 ,  H01L2227/323

Abstract: A backplane for a display device having a light emitting portion and a pad portion and a method of manufacturing the backplane for a display device, the backplane including a drain electrode in the light emitting portion on a substrate; a pad electrode in the pad portion on the substrate; a passivation layer in the light emitting portion to partially cover the drain electrode, the passivation layer exposing a portion of the drain electrode; a first pixel electrode in the light emitting portion on the passivation layer and the exposed drain electrode; and a second pixel electrode on the first pixel electrode, wherein: the second pixel electrode is formed of a material that is etchable by a first etching material, and the first pixel electrode is formed of a material that is not etchable by the first etching material.