Method of manufacturing display device

Patent metadata

Field	Value
Publication number	US-11806969-B2
Application number	US-202117244367-A
Country	US
Kind code	B2
Filing date	Apr 29, 2021
Priority date	Aug 18, 2020
Publication date	Nov 7, 2023
Grant date	Nov 7, 2023

Abstract

A method of manufacturing a display device includes: providing a glass including an edge region and an inner region; arranging a light source under the glass; setting a center position of the light source to correspond to an inside of the edge region or an inside of the inner region of the glass; directing light into the glass by using the light source; and detecting a defect in the edge region of the glass by receiving light passing through the glass by using a detection camera.

First claim

What is claimed is:

1. A method of manufacturing a display device, the method comprising:
providing a glass including an edge region and an inner region;
arranging a light source under the glass;
setting a center position of the light source to correspond to a first point of the glass;
directing light into the glass by using the light source;
first detecting a defect in the edge region of the glass by receiving light passing through the glass by using a detection camera;
adjusting the center position of the light source to correspond to a second point of the glass based on a quality of a result obtained by the first detecting; and
second detecting a defect in the edge region by using the light source with the adjusted center position to obtain a result having a quality different from that obtained by the first detecting.

2. The method of manufacturing the display device of claim 1 , further comprising:
calculating an association with the center position of the light source to obtain a desired detection result quality, based on data of at least one of the first point, the result obtained by the first detecting, the second point, and a result obtained by the second detecting; and
determining the center position of the light source based on the association.

3. The method of manufacturing the display device of claim 1 , wherein the directing of the light into the glass further comprises adjusting a position of the light source such that light emitted from the light source enters the glass at an angle.

4. The method of manufacturing the display device of claim 1 , wherein the directing of the light into the glass comprises vertically directing the light emitted from the light source into the glass.

5. The method of manufacturing the display device of claim 1 , further comprising arranging a polarizing member under the glass.

Assignees

• Samsung Display Co Ltd

Inventors

• Lee Hee Young
• Lee Jeong Kug
• Lee Jung-Hun

Classifications

• B32B17/1099 Primary

  After-treatment of the layered product, e.g. cooling · CPC title

• B32B17/10293

  Edge features, e.g. inserts or holes · CPC title

• B32B41/00

  Arrangements for controlling or monitoring lamination processes; Safety arrangements · CPC title

• G01B11/06

  for measuring thickness {; e.g. of sheet material (thickness measurement by thermal means G01B21/085)} · CPC title

• G01N21/17

  Systems in which incident light is modified in accordance with the properties of the material investigated (where the material investigated is optically excited causing a change in wavelength of the incident light G01N21/63) · CPC title