Display device

Patent metadata

Field	Value
Publication number	US-11226696-B2
Application number	US-202016817155-A
Country	US
Kind code	B2
Filing date	Mar 12, 2020
Priority date	Apr 12, 2019
Publication date	Jan 18, 2022
Grant date	Jan 18, 2022

Abstract

A display device includes a display panel that includes a flat part and a protruding part adjacent to one side of the flat part, a touch panel disposed on the display panel, a touch connection circuit board disposed at one side of the touch panel and electrically connected to the touch panel, and a protective layer disposed on one surface of the touch connection circuit board and that overlaps the protruding part. The touch connection circuit board includes a base film, a first dummy pattern disposed on the base film and adjacent to one edge of the base film, a second dummy pattern disposed on the base film and adjacent to an other edge of the base film, and a line pattern section disposed between the first and second dummy patterns. The protective layer covers the line pattern section between the first and second dummy patterns.

First claim

What is claimed is:

1. A display device, comprising:
a display panel that includes a flat part and a protruding part adjacent to one side of the flat part;
a touch panel disposed on the display panel;
a touch connection circuit board disposed at one side of the touch panel and that is electrically connected to the touch panel; and
a protective layer disposed on one surface of the touch connection circuit board and that overlaps the protruding part of the display panel,
wherein the touch connection circuit board includes:
a base film;
a first dummy pattern disposed on the base film and adjacent to one edge of the base film;
a second dummy pattern disposed on the base film and adjacent to an other edge of the base film; and
a line pattern section disposed between the first dummy pattern and the second dummy pattern,

wherein the protective layer covers the line pattern section between the first dummy pattern and the second dummy pattern.

2. The display device of claim 1 ,
wherein the protruding part includes a bendable part that is configured to be bent about a bending axis that extends in one direction,
wherein the protective layer overlaps the bendable part.

3. The display device of claim 1 , wherein the line pattern section includes a plurality of connection lines that extend in a first direction,
wherein the first dummy pattern, the connection lines, and the second dummy pattern are spaced apart from each other in a second direction that intersects the first direction.

4. The display device of claim 3 , wherein the first dummy pattern and the second dummy pattern include a same material as the connection lines.

5. The display device of claim 3 , wherein the touch connection circuit board further includes at least one cover layer disposed on the base film.

6. The display device of claim 5 , wherein each of the first dummy pattern and the second dummy pattern extends from the at least one cover layer.

7. The display device of claim 5 , wherein the at least one cover layer includes a dielectric layer that covers the connection lines,
wherein each of the first dummy pattern and the second dummy pattern is integrated into a single body together with the dielectric layer.

8. The display device of claim 5 ,
wherein the at least one cover layer includes:
a dielectric layer that covers the connection lines; and
a printed layer disposed on the dielectric layer, and

wherein each of the first dummy pattern and the second dummy pattern includes:
a first sub-dummy layer integrated into a single body together with the dielectric layer; and
a second sub-dummy layer disposed on the first sub-dummy layer and integrated into a single body together with the printed layer.

9. The display device of claim 5 ,
wherein the at least one cover layer includes:
a dielectric layer that covers the connection lines; and
a printed layer disposed on the dielectric layer, and

wherein each of the first dummy pattern and the second dummy pattern includes:
a sub-dummy layer integrated into a single body together with the dielectric layer; and
a cover dummy layer that covers a top surface and a lateral surface of the sub-dummy layer,

wherein the cover dummy layer includes a same material as the printed layer.

10. The display device of claim 1 , wherein the touch connection circuit board includes a shield area and a connection area adjacent to the shield area,
wherein the first dummy pattern, the second dummy pattern, and the line pattern section are disposed on the connection area, and
wherein a minimum distance from one end of the connection area to the first dummy pattern or the second dummy pattern is greater than a minimum distance from the one end of the connection area to the line pattern section.

11. The display device of claim 1 , wherein the touch panel includes a sensing area and a non-sensing area, wherein the touch panel further includes
a sensing electrode disposed on the sensing area,
a sensing pad disposed on the non-sensing area, and
a sensing line that connects the sensing electrode and the sensing pad to each other.

12. The display device of claim 11 , wherein
the touch connection circuit board is electrically connected to the sensing pad, and
the touch connection circuit board is configured to be bent in a direction toward a bottom surface of the touch panel.

13. The display device of claim 11 , further comprising a coupling member formed between the sensing pad and the touch connection circuit board.

14. The display device of claim 1 , further comprising a window panel disposed on the touch panel, wherein the window panel includes a transmission area and a bezel area that surrounds the transmission area,
wherein the protective layer overlaps the bezel area.

15. A display device, comprising:
a display panel that includes a flat part and a bendable part adjacent to one side of the flat part, wherein the bendable part is configured to be bent about a bending axis that extends in one direction;
a touch panel disposed on the display panel;
a touch connection circuit board disposed at on one side of the touch panel and electrically connected to the touch panel, wherein the touch connection circuit board is configured to be bent in a direction toward a bottom surface of the touch panel; and
a protective layer disposed on the touch connection circuit board and that overlaps the bendable part,
wherein the touch connection circuit board includes:
a base film;
a first dummy pattern disposed on the base film and adjacent to one edge of the base film;
a second dummy pattern disposed on the base film and adjacent to an other edge of the base film; and
a plurality of connection lines disposed between the first dummy pattern and the second dummy pattern,

wherein the protective layer covers the connection lines between the first dummy pattern and the second dummy pattern.

16. The display device of claim 15 , wherein the first dummy pattern and the second dummy pattern include a same material as the connection lines.

17. The display device of claim 15 , wherein the touch connection circuit board further includes at least one cover layer disposed on the base film,
wherein each of the first dummy pattern and the second dummy pattern extends from the at least one cover layer.

18. The display device of claim 15 , wherein the touch connection circuit board includes a shield area and a connection area adjacent to the shield area,
wherein the first dummy pattern, the second dummy pattern, and the connection lines are disposed on the connection area.

19. A display device, comprising:
a touch panel;
a touch connection circuit board disposed at one side of the touch panel and that is electrically connected to the touch panel, wherein the touch connection circuit board is configured to be bent about a bending axis that extends in one direction; and
a protective layer disposed on one surface of the touch connection circuit board,
wherein the touch connection circuit board includes:
a base film;
a first dummy pattern disposed on the base film and adjacent to one edge of the base film;
a second dummy pattern disposed on the base film and adjacent to an other edge of the base film;
a line pattern section disposed between the first dummy pattern and the second dummy pattern, and
at least one cover layer disposed on the base film,

wherein each of the first dummy pattern and the second dummy pattern extends from the at least one cover layer, and
wherein the protective layer covers the l

Assignees

• Samsung Display Co Ltd

Inventors

• Oh Jihoon
• Jeon Myoung-Ha
• Kim Youngsoo

Classifications

• G06F3/0443

  using a single layer of sensing electrodes · CPC title

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title

• G06F3/047

  using sets of wires, e.g. crossed wires · CPC title

• G06F2203/04107

  Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds · CPC title

• G06F2203/04102

  Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper · CPC title