Display device and method of manufacturing display device

Patent metadata

Field	Value
Publication number	US-2021327999-A1
Application number	US-202117363283-A
Country	US
Kind code	A1
Filing date	Jun 30, 2021
Priority date	Nov 15, 2017
Publication date	Oct 21, 2021
Grant date	—

Abstract

A display device includes: a first substrate in which a display area and a non-display area disposed outside the display area are defined; a second substrate facing the first substrate; and a cell seal disposed on the non-display area, where the cell seal includes a bonding filament connecting the first substrate and the second substrate to each other.

First claim

What is claimed is:

1 . A display device, comprising:
a first substrate in which a display area and a non-display area disposed outside the display area are defined; a second substrate facing the first substrate; a cell seal disposed on the non-display area; a driving integrated circuit disposed on the non-display area; and a plurality of conductive lines connecting the driving integrated circuit and the display area, wherein the cell seal includes a bonding filament disposed between the first substrate and the second substrate, the bonding filament comprising a same material as the first substrate and the second substrate, wherein the cell seal forms a closed curve, and surrounds the display area, and wherein the conductive lines overlap a portion of the cell seal and do not overlap the bonding filament in a plan view

2 . The display device of claim 1 , further comprising:
an insulation film disposed on the non-display area, wherein the insulation film is not disposed on an area on which the bonding filament is disposed, and wherein the portion of the cell seal overlapping the conductive lines overlaps the insulation film.

3 . The display device of claim 1 ,
wherein each of the first substrate and the second substrate comprises glass.

4 . The display device of claim 1 ,
wherein the bonding filament has a width in a range of about 100 micrometers to about 200 micrometers.

5 . The display device of claim 1 ,
wherein the bonding filament comprises a central portion and a peripheral portion surrounding the central portion.

6 . The display device of claim 5 ,
wherein the central portion, having a refractive index different from a refractive index of the peripheral portion, has a width in a range of about 20 micrometers to about 70 micrometers.

7 . The display device of claim 1 ,
wherein a width of a middle end of the bonding filament is greater than a width of an upper end of the bonding filament and a width of a lower end of the bonding filament.

8 . The display device of claim 1 ,
wherein the bonding filament comprises an inner bonding filament and an outer bonding filament.

9 . The display device of claim 8 ,
wherein the inner bonding filament and the outer bonding filament partially overlap each other.

10 . The display device of claim 9 ,
wherein a refractive index of an overlap area of the inner bonding filament and the outer bonding filament and a refractive index of a peripheral portion of the inner bonding filament are different from each other.

11 . The display device of claim 8 ,
wherein at least one of the inner bonding filament and the outer bonding filament is inclined at a predetermined inclination angle with respect to a thickness direction of the first substrate.

12 . The display device of claim 11 ,
wherein the inner bonding filament and the outer bonding filament intersect each other.

13 . The display device of claim 1 ,
wherein the bonding filament comprises: a first bonding filament extending in a direction parallel to an X-axis; a second bonding filament extending in a direction parallel to a Y-axis; and an intersection portion at which the first bonding filament and the second bonding filament intersect each other.

14 . The display device of claim 13 ,
wherein a width of an intersection portion of the first bonding filament and the second bonding filament is greater than a width of the first bonding filament and greater than a width of the second bonding filament.

15 . The display device of claim 14 ,
wherein one end of the first bonding filament protrudes from the intersection portion in a direction parallel to the X-axis, and wherein one end of the second bonding filament protrudes from the intersection portion in a direction parallel to the Y-axis.

Assignees

• Samsung Display Co Ltd

Inventors

• Seo Woo Suk
• Ha Sang Woo
• Kim Sung Chul
• Kim Jung Hyun
• Song Si Joon
• Song Jun Ho
• You Bong Hyun

Classifications

• H10K59/8722 Primary

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

• H10K59/131

  Interconnections, e.g. wiring lines or terminals · CPC title

• B23K26/20 Primary

  Bonding (soldering by means of radiant energy B23K1/005) · CPC title

• B23K2101/36

  Electric or electronic devices · CPC title

• B23K26/06

  Shaping the laser beam, e.g. by masks or multi-focusing · CPC title