Display apparatus and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-8988403-B2
Application number	US-201313834396-A
Country	US
Kind code	B2
Filing date	Mar 15, 2013
Priority date	Aug 17, 2012
Publication date	Mar 24, 2015
Grant date	Mar 24, 2015

Abstract

A display device includes a display panel, a driving circuit, and a connection terminal. The display panel includes a display area and a non-display area surrounding the display area and an electrode terminal disposed in the non-display area and extended in a direction. The driving circuit includes a signal terminal extended in the same direction as the electrode terminal and disposed adjacent to the electrode terminal. The connection terminal is disposed on the electrode terminal and the signal terminal to electrically connect the electrode terminal and the signal terminal.

First claim

What is claimed is:

1. A display device comprising:
a display panel including a display area and a non-display area surrounding the display area, the display panel including an electrode terminal disposed in the non-display area and extended in a direction;
a driving circuit including a signal terminal extended in the direction of the electrode terminal and disposed adjacent to the electrode terminal, the driving circuit disposed at one side of the display panel; and
a connection terminal electrically connected to the electrode terminal and the signal terminal, the electrode terminal disposed on a surface of the connection terminal, the final terminal disposed on the surface of the connection terminal.

2. The display device of claim 1 , wherein the connection terminal comprises at least one of indium tin oxide, indium zinc oxide, aluminum zinc oxide, gallium-doped zinc oxide, zinc tin oxide, gallium tin oxide, or fluorine-doped tin oxide.

3. The display device of claim 1 , wherein the connection terminal comprises at least one of gold, silver, copper, or aluminum.

4. The display device of claim 1 , wherein the display panel further includes:
a display substrate including an insulating substrate and a light emitting diode, wherein the light emitting diode is disposed on a surface of the insulating substrate; and
a sealer isolating the light emitting diode from an external environment,
wherein the electrode terminal is electrically connected to the light emitting diode and disposed on the surface of the insulating substrate on which the light emitting diode is disposed.

5. The display device of claim 4 , wherein the driving circuit further includes a base film and the signal terminal is disposed on the base film.

6. The display device of claim 5 , further comprising a protective film attached to a surface opposite to a surface on which the electrode terminal is mounted of the insulating substrate and to a surface opposite to a surface on which the signal terminal is mounted of the base film,
wherein the protective film prevents the connection terminal from being disconnected.

7. The display device of claim 6 , further comprising a cover covering the connection terminal and a portion of the electrode terminal and the signal terminal, which are disposed at both sides of the connection terminal,
wherein the cover prevents the connection terminal from being exposed to moisture or oxygen in the external environment.

8. The display device of claim 7 , wherein the cover comprises a light-curing resin or a thermal-curing resin.

9. A display device comprising:
a display panel including an insulating substrate, a light emitting diode disposed in a display area of the insulating substrate, and an electrode terminal disposed in a non-display area of the insulating substrate and extended in a direction;
a driving circuit including a base film and a signal terminal disposed on the base film, the signal terminal extended in the direction of the electrode terminal and disposed adjacent to the electrode terminal, the driving circuit disposed at one side of the display panel; and
a connection terminal electrically connected to the electrode terminal and the signal terminal, the electrode terminal disposed on a surface of the connection terminal, the final terminal disposed on the surface of the connection terminal.

10. The display device of claim 9 , further comprising a protective film attached to a surface opposite to a surface on which the electrode terminal is mounted of the insulating substrate and to a surface opposite to a surface on which the signal terminal is mounted of the base film,
wherein the protective film prevents the connection terminal from being disconnected.

11. The display device of claim 10 , further comprising a cover covering the connection terminal and a portion of the electrode terminal and the signal terminal, which are disposed at both sides of the connection terminal,
wherein the cover prevents the connection terminal from being exposed to moisture or oxygen.

12. The display device of claim 11 , wherein the cover comprises a light-curing resin or a thermal-curing resin.

13. A method of manufacturing a display device, comprising:
preparing a display panel that includes an insulating substrate, a light emitting diode disposed in a display area of the insulating substrate, and an electrode terminal disposed in a non-display area of the insulating substrate and extended in a direction;
preparing a driving circuit that includes a base film and a signal terminal disposed on the base film, the signal terminal being extended in the direction of the electrode terminal and disposed adjacent to the electrode terminal, the driving circuit disposed at one side of the display panel; and
forming a connection terminal electrically connected to the electrode terminal and the signal terminal, the electrode terminal disposed on a surface of the connection terminal, the signal terminal disposed on the surface of the connection terminal.

14. The method of claim 13 , wherein the connection terminal is formed by forming a conductive ink pattern or a conductive paste pattern on the electrode terminal and the signal terminal in an area in which the display panel and the driving circuit are adjacent to each other using an inkjet print.

15. The method of claim 14 , wherein the conductive ink comprises at least one of indium tin oxide, indium zinc oxide, aluminum zinc oxide, gallium-doped zinc oxide, zinc tin oxide, gallium tin oxide, or fluorine-doped tin oxide.

16. The method of claim 14 , wherein the conductive paste comprises at least one of gold, silver, copper, or aluminum and an adhesive.

17. The method of claim 13 , wherein the forming of the connection terminal comprises:
coating a conductive ink or a conductive paste to overlap with an area in which the display panel and the driving circuit are adjacent to each other to form a conductive layer;
forming a photoresist pattern corresponding to a shape of the electrode terminal and the signal terminal on the conductive layer; and
patterning the conductive layer using the photoresist pattern as a mask.

18. The method of claim 13 , further comprising attaching a protective film to a surface opposite to a surface on which the electrode terminal is mounted of the insulating substrate and to a surface opposite to a surface on which the signal terminal is mounted of the base film, to prevent the connection terminal from being disconnected.

19. The method of claim 13 , further comprising forming a cover that covers the connection terminal and a portion of the electrode terminal and the signal terminal, which are disposed at both sides of the connection terminal, to prevent the connection terminal from being exposed to moisture or oxygen.

20. The method of claim 19 , wherein the cover comprises a light-curing resin or a thermal-curing resin.

Assignees

• Samsung Display Co Ltd

Inventors

• Choi Daeguen
• Beom Jingab

Classifications

• H10F77/244

  made of transparent conductive layers, e.g. transparent conductive oxide [TCO] layers · CPC title

• H10H20/857 Primary

  Interconnections, e.g. lead-frames, bond wires or solder balls · CPC title

• H01L33/62 Primary

  Electricity · mapped topic

• H01L27/3288

  Electricity · mapped topic

• H01L2924/0002

  Electricity · mapped topic