Display apparatus and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-2016307922-A1
Application number	US-201615003462-A
Country	US
Kind code	A1
Filing date	Jan 21, 2016
Priority date	Apr 15, 2015
Publication date	Oct 20, 2016
Grant date	—

Abstract

A display apparatus comprises a first substrate comprising a first external surface and a first internal surface; a second substrate having a second external surface and a second internal surface facing the first internal surface of the first substrate; and a display unit disposed between the first and second substrates and comprising an array of pixels. The first substrate comprises a first side connecting the first external surface and the first internal surface. In a cross section perpendicular to the first external surface, the first side comprises a first straight region and a first curved region located between the straight region and the first internal surface. The second substrate comprises a second side connecting the first external surface and the first internal surface. The second side comprises a second straight region and a second curved region located between the straight region and the second internal surface.

First claim

What is claimed is:

1 . A display apparatus comprising:
a first substrate comprising a first external surface and a first internal surface; a second substrate having a second external surface and a second internal surface facing the first internal surface of the first substrate; and a display unit disposed between the first and second substrates and comprising an array of pixels, wherein the first substrate comprises a first side connecting the first external surface and the first internal surface, wherein, in a cross section perpendicular to the first external surface, the first side comprises a first straight region and a first curved region located between the first straight region and the first internal surface, and wherein the second substrate comprises a second side connecting the first external surface and the first internal surface, wherein, in the cross section, the second side comprises a second straight region and a second curved region located between the second straight region and the second internal surface.

2 . The display apparatus of claim 1 , further comprising an adhesive member disposed between the first internal surface and the second internal surface and combining the first and second substrates together.

3 . The display apparatus of claim 2 , wherein the adhesive member comprises an outer side surface and an inner side surface which are curved, wherein a radius of curvature of the inner side surface is less than a radius of curvature of the outer surface.

4 . The display apparatus of claim 2 , wherein the adhesive member comprises an outer side surface which is curved, wherein the first curved region of the first substrate, the outer side surface of the adhesive member, and the second curved region of the second substrate form a convex surface.

5 . The display apparatus of claim 4 , wherein, in the cross section, the convex surface has a continuously curved feature.

6 . The display apparatus of claim 1 , wherein the first straight region of the first substrate is substantially perpendicular to the first external surface of the first substrate.

7 . The display apparatus of claim 1 , wherein the second straight region of the second substrate is substantially perpendicular to the second external surface of the second substrate.

8 . The display apparatus of claim 1 , further comprising a film covering the first external surface while not covering the first side of the first substrate.

9 . A method of manufacturing a display apparatus, the method comprising:
providing an intermediate product comprising:
a first substrate comprising a first external surface and a first internal surface;
a second substrate comprising a second external surface and a second internal surface;
a display unit comprising an array of pixels disposed between the first substrate and the second substrate; and
an adhesive member located between the first internal surface of the first substrate and the second internal surface of the second substrate to surround the display unit and combining the first and second substrates together; and
cutting the intermediate product to make a final product, wherein, in the final product, the first substrate comprises a first side connecting the first external surface and the first internal surface, wherein, in a cross section perpendicular to the first external surface, the first side comprises a first straight region and a first curved region located between the first straight region and the first internal surface, and further such that the second substrate comprises a second side connecting the first external surface and the first internal surface, wherein, in the cross section, the second side comprises a second straight region and a second curved region located between the second straight region and the second internal surface.

10 . The method of claim 9 , further comprising irradiating light beams to a part of the adhesive member such that after curing the adhesive member, the adhesive member comprises a cured portion and an uncured portion, the cured portion being disposed between the display unit and the uncured portion.

11 . The method of claim 10 , wherein cutting comprises moving a first cutter to contact the first substrate at a first cutting point on the first external surface, the first cutting point being located between an outermost end of the cured portion and the display unit when viewed in a viewing direction perpendicular to the first external surface.

12 . The method of claim 11 , wherein, when a center of the cured portion is defined between the outermost end and an innermost end of the cured portion, the first cutting point is located between the outermost end and the center of the cured portion.

13 . The method of claim 11 , wherein cutting further comprises advancing the first cutter in a thickness direction of the first substrate toward the first internal surface only a first distance which is smaller than a thickness of the first substrate such that a remaining portion of the first substrate is cut without further advancing the first cutter in the thickness direction of the first substrate toward the first internal surface.

14 . The method of claim 11 , wherein cutting further comprises moving a second cutter to contact the second substrate at a second cutting point on the second external surface, the second cutting point being located between the outermost end of the cured portion and the display unit when viewed in a viewing direction perpendicular to the first external surface.

15 . The method of claim 14 , wherein cutting further comprises advancing the first cutter in a thickness direction of the first substrate toward the first internal surface only a first distance which is smaller than a thickness of the first substrate, and advancing the second cutter in a thickness direction of the second substrate toward the second internal surface only a second distance which is smaller than a thickness of the second substrate, wherein remaining portions of the first and second substrates are cut without further advancing the first and second cutters toward the first and second interior surfaces, respectively.

16 . The method of claim 15 , wherein the remaining portions of the first and second substrates are spontaneously cut or the remaining portions of the first and second substrates are cut by applying a force to the first or second substrate.

17 . The method of claim 15 , wherein cutting further comprises transferring the first cutter along a first predetermined line along the first external surface and transferring the second cutter along a second predetermined line along the second external surface after advancing the first and second cutters, wherein the first and second predetermined lines overlap the cured portion of the adhesive member.

18 . The method of claim 10 , further comprising forming a conductive pattern for a touch screen and a blocking pattern over the second external surface of the second substrate,
wherein the blocking pattern blocks the light beams not to reach the other part of the adhesive member while irradiating the light beams to form the uncured portion of the adhesive member.

19 . The method of claim 18 , wherein the uncured portion of the adhesive member and the blocking pattern are removed while cutting the intermediate product.

20 . The method of claim 9 , further comprising adhering a film covering at least one of the first external surface of the first substrate and the second external surface of t

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Hyoengki
• Sin Sangwook
• Shin Jaeyoung
• Yoo Seungjoon
• Lee Jaeman
• Lee Hyunsoo
• Cheon Beomjun
• Hong Gwangjoon

Classifications

• H10D84/01

  Manufacture or treatment · CPC title

• G02F1/133351

  Manufacturing of individual cells out of a plurality of cells, e.g. by dicing · CPC title

• G02F2201/503

  Arrangements improving the resistance to shock · CPC title

• G02F1/1339 Primary

  Gaskets; Spacers; Sealing of cells · CPC title

• H10K59/8722

  Peripheral sealing arrangements, e.g. adhesives, sealants · CPC title