Method of manufacturing display device

Patent metadata

Field	Value
Publication number	US-2025120257-A1
Application number	US-202418808722-A
Country	US
Kind code	A1
Filing date	Aug 19, 2024
Priority date	Oct 4, 2023
Publication date	Apr 10, 2025
Grant date	—

Abstract

A method of manufacturing a display device is provided. The method includes: applying an organic encapsulation layer to a substrate of the display device, the substrate having a display area and a peripheral area extending at least partially around the display area; irradiating light to the organic encapsulation layer; and capturing an image of the peripheral area to which the organic encapsulation layer is applied.

First claim

What is claimed is:

1 . A method of manufacturing a display device, the method comprising:
applying an organic encapsulation layer to a substrate of the display device, the substrate having a display area and a peripheral area extending at least partially around the display area; irradiating light to the organic encapsulation layer; and capturing an image of the peripheral area to which the organic encapsulation layer is applied.

2 . The method of claim 1 , further comprising, after the capturing of the image of the peripheral area, estimating an application amount of the organic encapsulation layer applied to the peripheral area.

3 . The method of claim 1 , wherein, in the irradiating of the light to the organic encapsulation layer, the organic encapsulation layer to which the light is irradiated becomes opaque.

4 . The method of claim 3 , wherein an application amount of the organic encapsulation layer is estimated according to a degree of opacity of the organic encapsulation layer to which the light is irradiated.

5 . The method of claim 3 , wherein a degree of opacity of the organic encapsulation layer varies according to a thickness of the organic encapsulation layer that is applied.

6 . The method of claim 5 , wherein, as a thickness of the organic encapsulation layer that is applied increases, the degree of opacity of the organic encapsulation layer increases.

7 . The method of claim 1 , wherein the light has a wavelength range in an ultraviolet region.

8 . The method of claim 7 , wherein the wavelength range of the light is from 365 nm to 395 nm.

9 . The method of claim 1 , wherein the display device comprises a first dam in the peripheral area.

10 . The method of claim 9 , wherein the display device has a recess in the peripheral area between the first dam and the display area.

11 . The method of claim 10 , wherein the display device further comprises a second dam in the peripheral area and further away from the display area than the first dam is.

12 . The method of claim 10 , wherein, in the applying of the organic encapsulation layer to the substrate, the organic encapsulation layer is filled in the recess.

13 . The method of claim 10 , wherein an area of a cross-section of the recess parallel to the substrate decreases in a direction toward the substrate.

14 . The method of claim 10 , wherein a cross-sectional length of the recess in a first direction uniformly decreases in a direction toward the substrate.

15 . The method of claim 13 , wherein the recess has an island shape.

16 . The method of claim 13 , wherein the recess has a linear shape and extends parallel to an edge of the display area.

17 . The method of claim 10 , wherein a cross-sectional area of the recess parallel to the substrate is constant in a direction perpendicular to the substrate.

18 . The method of claim 10 , wherein a cross-sectional length of the recess in a first direction is constant.

19 . The method of claim 17 , wherein the recess has an island shape.

20 . The method of claim 17 , wherein the recess has a linear shape and extends parallel to an edge of the display area.

Assignees

• Samsung Display Co Ltd

Inventors

• Lee Jeongmoon
• Kim Daehong

Classifications

• H10K71/00

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

• H10K59/873

  Encapsulations · CPC title

• H10K59/1201 Primary

  Manufacture or treatment · CPC title

• H10K59/12

  Active-matrix OLED [AMOLED] displays · CPC title