Manufacturing method of display apparatus utilizing dam portion and display apparatus manufactured using the method
AssigneeSamsung Display Co., Ltd.
InventorsMijung HAN, Heena KIM, Sangjin PARK
Life of this patent
Estimating the term…
Abstract
A manufacturing method of a display apparatus, in which a defect rate in a manufacturing process is reduced and product reliability is increased, and a display apparatus manufactured according to the method are provided. The manufacturing method includes: forming a first pixel electrode on a substrate; forming an insulating layer; forming a first dam portion; forming a first lift-off layer; forming a first mask layer; forming a first intermediate layer; forming a first opposite electrode; forming a first insulating protective layer; and removing the first dam portion.
Claims20
A method of manufacturing a display apparatus, the method comprising:
- forming a first pixel electrode for emission of a first color, a second pixel electrode for emission of a second color, and a third pixel electrode for emission of a third color on a substrate;
- forming an insulating layer, the insulating layer covering edges of the first pixel electrode and having a first opening exposing a center portion of the first pixel electrode, the insulating layer covering edges of the second pixel electrode and having a second opening exposing a center portion of the second pixel electrode, the insulating layer covering edges of the third pixel electrode and having a third opening exposing a center portion of the third pixel electrode;
- (a-1) forming a first dam portion on the insulating layer around the first opening;
- (b-1) forming a first lift-off layer on the insulating layer around the outside of the first dam portion such that the first lift-off layer covers the second pixel electrode and the third pixel electrode and comprises an opening exposing the first pixel electrode;
- (c-1) forming a first mask layer on the first lift-off layer, the first mask layer having a first open portion corresponding to the first opening;
- (d-1) forming a first intermediate layer on the first pixel electrode through the first open portion;
- (e-1) forming a first opposite electrode on the first intermediate layer through the first open portion;
- (f-1) forming a first insulating protective layer on the first opposite electrode through the first open portion;
- and
- (g-1) removing the first mask layer, the first lift-off layer, and the first dam portion.
Dependencies are inferred from the claim text.