US 2024/0196659 A1Published application

Display apparatus and method of manufacturing the same

AssigneeSamsung Display Co., Ltd.

InventorsSewan SON, Sungho KIM, Minwoo WOO, Seunghyun LEE, Wangwoo LEE, Jiseon LEE, Kyeongwoo JANG, Sugwoo JUNG, Hyeri CHO, Seunggyu TAE

Life of this patent

Estimating the term…

patentgrep

Loading patent…

Abstract

A display apparatus includes a first sub-pixel electrode, a conductive bank layer which is disposed on the first sub-pixel electrode and in which a first opening overlapping the first sub-pixel electrode is defined. The conductive bank layer includes first and second conductive layers having different etch selectivities from each other, an insulating layer which is disposed between a peripheral portion of the first sub-pixel electrode and the conductive bank layer and in which an opening overlapping the first opening is defined, an insulating protective layer which is disposed between the insulating layer and the conductive bank layer and in which an opening overlapping the first opening is defined. The insulating protective layer includes an insulating material having an etch selectivity different from an etch selectivity of the insulating layer, a first intermediate layer overlapping the first sub-pixel electrode through the first opening of the conductive bank layer.

Claims25

Dependent claims

A display apparatus comprising:

a first sub-pixel electrode;
a conductive bank layer which is disposed on the first sub-pixel electrode and in which a first opening overlapping the first sub-pixel electrode is defined, the conductive bank layer comprising a first conductive layer and a second conductive layer having different etch selectivities from each other;
an insulating layer which is disposed between a peripheral portion of the first sub-pixel electrode and the conductive bank layer and in which an opening overlapping the first opening is defined;
an insulating protective layer which is disposed between the insulating layer and the conductive bank layer and in which an opening overlapping the first opening is defined, the insulating protective layer comprising an insulating material having an etch selectivity different from an etch selectivity of the insulating layer;
a first intermediate layer overlapping the first sub-pixel electrode through the first opening of the conductive bank layer;
a first counter electrode overlapping the first intermediate layer through the first opening of the conductive bank layer;
and
a first inorganic barrier layer on the first counter electrode.

5 more elements

A method of manufacturing a display apparatus, the method comprising:

forming a first sub-pixel electrode;
forming an insulating layer in which an opening overlapping the first sub-pixel electrode is defined;
forming an insulating protective layer disposed on the insulating layer and overlapping the first sub-pixel electrode through the opening of the insulating layer;
forming a conductive bank layer which is disposed on the insulating protective layer and in which a first opening overlapping the first sub-pixel electrode is defined, the conductive bank layer comprising a first conductive layer and a second conductive layer having different etch selectivities from each other;
defining an opening of the insulating protective layer overlapping the first opening by etching a part of the insulating protective layer through the first opening of the conductive bank layer;
forming a first intermediate layer overlapping the first sub-pixel electrode through the first opening of the conductive bank layer and the opening of the insulating protective layer;
forming a first counter electrode overlapping the first intermediate layer;
and
forming a first inorganic barrier layer on the first counter electrode.

6 more elements

Dependencies are inferred from the claim text.