Display panel, stacked substrate including the same, and method of manufacturing the display panel

Patent metadata

Field	Value
Publication number	US-12453240-B2
Application number	US-202217732262-A
Country	US
Kind code	B2
Filing date	Apr 28, 2022
Priority date	Oct 26, 2016
Publication date	Oct 21, 2025
Grant date	Oct 21, 2025

Abstract

A display panel includes a base substrate having a first surface and a second surface opposing each other, a pixel part located on the first surface, and including a plurality of pixels, and a remaining part on the second surface to cover at least a portion of the second surface, and including a moisture absorption material having a moisture absorption property.

First claim

What is claimed is:

1. A method of manufacturing a display panel, the method comprising:
forming a moisture absorption layer comprising at least one of a silicon oxide, a chloride, a sulfur oxide, a bromine compound, a fluorine compound, or an indium compound on a carrier substrate, the moisture absorption layer having a number of pores formed therein;
forming a base part on the moisture absorption layer;
forming a pixel part comprising a plurality of pixels on the base part;
injecting moisture into the moisture absorption layer to deform the moisture absorption layer; and
separating the base part and the pixel part from the carrier substrate to form the display panel, the number of the pores causing the moisture absorption layer to be completely removed from the base part.

2. The method of claim 1 , wherein the moisture absorption layer is deformed by the moisture to have at least one pore.

3. The method of claim 1 , wherein the moisture absorption layer is expanded in volume by the moisture.

4. The method of claim 1 , wherein the base part is formed through a solution process.

5. The method of claim 4 , further comprising removing a portion of the base part prior to the injecting of the moisture,
wherein the base part is formed to cover a top surface and side surfaces of the moisture absorption layer, and
wherein the side surfaces of the moisture absorption layer are exposed from the base part by the removing of the portion of the base part.

6. The method of claim 5 , wherein the portion of the base part is cut and removed along a cutting line defined on the base part, and
the cut and removed portion does not overlap the moisture absorption layer in a plan view.

7. The method of claim 1 , wherein, in the separating of the base part and the pixel part from the carrier substrate, a plurality of adsorption pads that adsorb the carrier substrate and the base part in directions opposite to each other are used.

8. The method of claim 1 , wherein the carrier substrate comprises glass, and the base part comprises a resin.

Assignees

• Samsung Display Co Ltd

Inventors

• Kwon Seungwook
• Kwon Ohjune
• Sung Wooyong

Classifications

• H10K59/12

  Active-matrix OLED [AMOLED] displays · CPC title

• H10K71/00

  Manufacture or treatment specially adapted for the organic devices covered by this subclass · CPC title

• H10K50/846

  comprising getter material or desiccants · CPC title

• H10K59/874 Primary

  including getter material or desiccant · CPC title

• H10K2102/311

  Flexible OLED · CPC title