Display device

Patent metadata

Field	Value
Publication number	US-11822396-B2
Application number	US-202117186333-A
Country	US
Kind code	B2
Filing date	Feb 26, 2021
Priority date	Aug 30, 2018
Publication date	Nov 21, 2023
Grant date	Nov 21, 2023

Abstract

According to one embodiment, a display device includes a first insulating substrate including a first substrate end, a second insulating substrate including an outer surface and a second substrate end, an electrode located between the first substrate end and the second substrate end, and a transparent conductive layer disposed on a side on which the outer surface is located. The outer surface includes a flat portion and a sloping portion. A thickness on a side on which the second substrate end is located is less than a thickness on a side on which the flat portion is located. The transparent conductive layer overlaps the sloping portion and is electrically connected to the electrode.

First claim

What is claimed is:

1. A display device comprising:
a first insulating substrate comprising a first substrate end;
a second insulating substrate comprising an inner surface opposed to the first insulating substrate, an outer surface on an opposite side to the inner surface, and a second substrate end;
an electrode located between the first substrate end and the second substrate end and maintained at a predetermined potential; and
a transparent conductive layer disposed on a side on which the outer surface is located, wherein
the outer surface comprises a flat portion and a sloping portion formed from the flat portion to the second substrate end,
the sloping portion slopes such that a thickness on a side on which the second substrate end is located is less than a thickness on a side on which the flat portion is located, and
the transparent conductive layer overlaps the sloping portion and is electrically connected to the electrode.

2. The display device of claim 1 , further comprising a connection member which is in contact with the electrode and the transparent conductive layer and electrically connects the electrode and the transparent conductive layer.

3. The display device of claim 2 , wherein the transparent conductive layer is located between the sloping portion and the connection member.

4. The display device of claim 1 , further comprising:
an optical element; and
an adhesive layer which bonds the optical element to the transparent conductive layer.

5. The display device of claim 4 , wherein an end of the optical element projects more toward the electrode than an end of the adhesive layer.

6. The display device of claim 4 , further comprising a low expansion layer located between the adhesive layer and the optical element, wherein
a thermal expansion coefficient of the low expansion layer is less than a thermal expansion coefficient of the optical element.

7. The display device of claim 1 , further comprising an optical element, wherein
the transparent conductive layer is a conductive adhesive agent which bonds the optical element to the flat portion.

8. The display device of claim 7 , wherein the transparent conductive layer is apart from the sloping portion above the sloping portion.

9. The display device of claim 8 , further comprising a conductive connection member which is in contact with the electrode and the transparent conductive layer.

10. The display device of claim 7 , wherein the transparent conductive layer is in contact with the electrode.

11. The display device of claim 1 , further comprising an optical element comprising a main body and an extension portion, wherein
the transparent conductive layer is an adhesive agent which bonds the main body to the flat portion and the sloping portion and bonds the extension portion to the electrode.

12. The display device of claim 1 , wherein the sloping portion is formed in a substantially rectangular shape.

13. The display device of claim 1 , wherein the sloping portion is formed in a substantially triangular shape.

14. The display device of claim 1 , wherein
the second insulating substrate comprises a concave portion, and
the sloping portion is disposed in the concave portion.

15. The display device of claim 2 , wherein the connection member is formed of a resin material having conductivity.

16. The display device of claim 1 , wherein a width of the sloping portion is equal to a height of the sloping portion or greater than the height.

17. The display device of claim 1 , wherein a width of the sloping portion is less than a height of the sloping portion.

18. The display device of claim 1 , wherein a thickness of the first insulating substrate is greater than a thickness of the second insulating substrate.

Assignees

• Japan Display Inc

Inventors

• Watanabe Yoshihiro
• Imazeki Yoshikatsu
• Kamijo Yoichi
• Miyasaka Koichi
• Osawa Shuichi

Classifications

• G06F1/189 Primary

  Power distribution · CPC title

• G06F1/181

  Enclosures (for portable computers G06F1/1613) · CPC title

• G02F1/136286

  Wiring, e.g. gate line, drain line · CPC title

• G06F1/1656 Primary

  Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories (mounting of accessories to a computer display G06F1/1607; display hoods G06F1/1603; cooling arrangements for portable computers G06F1/203) · CPC title

• G02F1/1333

  Constructional arrangements; {Manufacturing methods}(G02F1/135, G02F1/136 take precedence) · CPC title