ORGANIC LIGHT-EMITTING DISPLAY APPARATUS AND METHOD OF MANUFACTURING THE SAME

• US 20150171367A1
• Filed: 03/25/2014
• Published: 06/18/2015
• Est. Priority Date: 12/18/2013
• Status: Abandoned Application

• Current Assignee: Samsung Display Company Limited (Samsung Group)
• Original Assignee: Samsung Display Company Limited (Samsung Group)
• Inventors: Moon, Seung-Jun
• Application Number:
  US14/225,390
• Publication Number:
  US 20150171367A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H10K 50/8426 Peripheral sealing arrangements, e.g. adhesives, sealants
• CPC Class Codes: H10K 50/844 Encapsulations
• CPC Class Codes: H10K 59/12 Active-matrix OLED [AMOLED] displays

Abstract

An organic light-emitting display apparatus includes a substrate, a display portion on the substrate, an organic layer extending over the display portion, an inorganic layer extending over the organic layer, and a dam surrounding an outer perimeter of the organic layer. The dam may include a groove configured to accommodate a portion of the organic layer extending beyond a perimeter of the dam surrounding the organic layer. A method of manufacturing an organic light-emitting display apparatus includes forming a display portion on a substrate, forming a dam defining a groove in a region spaced from the display portion, forming an organic layer over the display portion and extending up to the region spaced from the display portion such that the organic layer is surrounded by the dam, and forming an inorganic layer over the organic layer.

Claims

1. An organic light-emitting display apparatus comprising:

a substrate, a display portion on the substrate, an organic layer extending over the display portion, an inorganic layer extending over the organic layer, and a dam surrounding an outer perimeter of the organic layer,

wherein the dam comprises a groove configured to accommodate a portion of the organic layer extending beyond a perimeter of the dam surrounding the organic layer.

2. The organic light-emitting display apparatus of claim 1, wherein the dam further comprises a single layer surrounding the outer perimeter of the organic layer.

3. The organic light-emitting display apparatus of claim 1, wherein the dam further comprises a plurality of layers surrounding the outer perimeter of the organic layer.

4. The organic light-emitting display apparatus of claim 1, wherein the inorganic layer extends to an outer edge of the dam.

5. The organic light-emitting display apparatus of claim 1, wherein the dam further comprises a bottom surface contacting the substrate, a plurality of wall surfaces integrally formed with the bottom surface and extending upward from the bottom surface, and wherein the groove is defined by an opening surrounded by the bottom surface and the plurality of wall surfaces of the dam.

6. A method of manufacturing an organic light-emitting display apparatus, the method comprising:

forming a display portion on a substrate;

forming a dam defining a groove in a region spaced from the display portion;

forming an organic layer over the display portion and extending up to the region spaced from the display portion such that the organic layer is surrounded by the dam; and

forming an inorganic layer over the organic layer.

7. The method of claim 6, wherein the dam comprises a single layer.

8. The method of claim 6, wherein the dam comprises a plurality of layers.

9. The method of claim 6, wherein the inorganic layer extends to an outer edge of the dam.

10. The method of claim 6, wherein the groove is defined by an opening sunken from an upper surface of the dam into the inside such that a part of an outer perimeter of the organic layer is accommodated in the groove.