Display device

Patent metadata

Field	Value
Publication number	US-9525154-B2
Application number	US-201414574735-A
Country	US
Kind code	B2
Filing date	Dec 18, 2014
Priority date	Dec 27, 2013
Publication date	Dec 20, 2016
Grant date	Dec 20, 2016

Abstract

A display device includes a first substrate having flexibility, a second substrate having flexibility arranged facing the first substrate, a light emitting element arranged in a display region of the first substrate, and a filling material covering the light emitting element and extending from the display region to an end part of the first substrate and the second substrate. The filling material is a solid and is provided on the inner side from the first substrate and second substrate.

First claim

What is claimed is:

1. A display device comprising:
a first flexible substrate having a first surface, wherein the first surface has a first edge, a second edge, a third edge, and a fourth edge, wherein the first edge and the third edge are in parallel, and the second edge and the fourth edge are in parallel;
a second flexible substrate having a second surface facing the first surface, wherein the second surface has a fifth edge, a sixth edge, a seventh edge, and an eighth edge, and arranged facing the first flexible substrate, wherein the fifth edge and the seventh edge are in parallel, and the sixth edge and the eight edge are in parallel;
a light emitting element arranged in a display region of the first flexible substrate;
a filling material covering the light emitting element and continuously extending from the display region to at least a part of a first outermost edge of the first edge, a second outermost edge of the second edge, and a third outermost edge of the third edge of the first flexible substrate and to at least a part of a fifth outermost edge of the fifth edge, a sixth outermost edge of the sixth edge, and a seventh outermost edge of the seventh edge of the second flexible substrate; and
a first seal member extending from the first outermost edge and the fifth outermost edge to the third outermost edge and the seventh outermost edge between the display region and a terminal region exposing the first flexible substrate from the second flexible substrate and connecting an external terminal,
a spacer arranged between the first flexible substrate and the second flexible substrate, the spacer being arranged in a region facing the first seal member via the display region, wherein
the spacer is not connected with the first seal member; and
the filling material is arranged between the spacer and at least one of the first outermost edge, the second outermost edge, third outermost edge, fifth outermost edge, sixth outermost edge, and seventh outermost edge.

2. The display device according to claim 1 , wherein the filling material is a solid.

3. The display device according to claim 1 , wherein an end part of the filling material is positioned between the first substrate and second substrate, and the first seal member.

4. The display device according to claim 1 , wherein the spacer is a second seal member.

5. The display device according to claim 4 , wherein a slit is arranged in the second seal member.

6. The display device according to claim 1 , wherein
the first edge faces the fifth edge,
the third edge faces the seventh edge,
the filling material provided between the first edge and the fifth edge is recessed toward the display region to form a concave shape in a cross-sectional view, and
the filing material provided between the third edge and the seventh edge is recessed toward the display region to form a concave shape in a cross-sectional view.

7. A display device formation substrate comprising:
a substrate arranged with a plurality of panels including a first panel and a second panel adjacent to the first panel, wherein each of the first panel and the second panel comprises;
a first substrate having a first surface, wherein the first surface has a first edge, a second edge, a third edge, and a fourth edge, wherein the first edge and the third edge are in parallel, and the second edge and the fourth edge are in parallel;
a second substrate having a second surface facing the first surface, wherein the second surface has a fifth edge, a sixth edge, a seventh edge, and an eighth edge, and arranged facing the first flexible substrate, wherein the fifth edge and the seventh edge are in parallel, and the sixth edge and the eight edge are in parallel;
a light emitting element arranged in a display region of the first substrate;
a seal member extending from a first outermost edge of the first edge and a fifth outermost edge of the fifth edge of the first substrate to a third outermost edge of the third edge and a seventh outermost edge of the seventh edge of the second substrate between the display region of the plurality of panels and a terminal region of the plurality of panels positioned on a periphery of the display region, the terminal region being connected to an external terminal; and
a filling member arranged in a region enclosed by the seal member,
wherein the filling member extends from the first panel to the second panel, covers the light emitting element, and continuously extends from the display region to at least a part of the first outermost edge, the third outermost edge and a second outermost edge of the second edge and to at least a part of the fifth outermost edge, the seventh outermost edge and a sixth outermost edge of the sixth edge and a material of the filling member is different from that of the seal member;
a spacer arranged between the first substrate and the second substrate, the spacer being arranged in a region facing the first seal member via the display region, wherein

the spacer is not connected with the first seal member; and
the filling material is arranged between the spacer and at least one of the first outermost edge, the second outermost edge, third outermost edge, fifth outermost edge, sixth outermost edge, and seventh outermost edge.

8. The display device formation substrate according to claim 7 , wherein the each of the terminal regions of adjacent panels is arranged in mutually facing regions via the seal member.

9. The display device formation substrate according to claim 7 , wherein the seal member is arranged in a region facing the terminal region via the display region in each of the plurality of panels.

Assignees

• Japan Display Inc

Inventors

• Kuranaga Takahide
• Itoga Toshihiko
• Oku Norio

Classifications

• H10K59/8723

  Vertical spacers, e.g. arranged between the sealing arrangement and the OLED · CPC title

• H10K50/8426

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

• H10K59/8722 Primary

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

• H01L51/525

  Electricity · mapped topic

• H01L2251/566

  Electricity · mapped topic