Display apparatus having a crack resistance structure

Patent metadata

Field	Value
Publication number	US-10444878-B2
Application number	US-201615342628-A
Country	US
Kind code	B2
Filing date	Nov 3, 2016
Priority date	May 31, 2016
Publication date	Oct 15, 2019
Grant date	Oct 15, 2019

Abstract

A display apparatus including a display panel, a polarizing member having an absorption axis and a transmission axis, and a first touch electrode extending in a first direction is disclosed. The first touch electrode includes first touch patterns and a connection pattern connecting adjacent first touch patterns in the first direction. The connection pattern has a minimum width in a direction perpendicular to a second direction. The first direction and the absorption axis direction form a first directional angle equal to or less than about 90 degrees. The first and second directions form a second directional angle equal to or less than about 90 degrees. The second and absorption axis directions form a third directional angle equal to or less than about 90 degrees. The first directional angle is the sum of the second directional angle and the third directional angle.

First claim

What is claimed is:

1. A display apparatus comprising:
a display panel configured to display an image;
a polarizing member disposed on the display panel and having an absorption axis and a transmission axis perpendicular to the absorption axis; and
a first touch electrode disposed on the display panel and overlapping the polarizing member, the first touch electrode extending in a first direction crossing an absorption axis direction, the absorption axis direction is parallel to the absorption axis,
wherein:
the first touch electrode comprises:
first touch patterns; and
a connection pattern connecting adjacent first touch patterns in the first direction;

the connection pattern has a minimum width in a direction perpendicular to a second direction, the second direction crossing the first direction and the absorption axis direction;
the first direction and the absorption axis direction form a first directional angle equal to or less than substantially 90 degrees;
the first direction and the second direction form a second directional angle equal to or less than substantially 90 degrees;
the second direction and the absorption axis direction form a third directional angle equal to or less than substantially 90 degrees; and
the first directional angle is the sum of the second directional angle and the third directional angle.

2. The display apparatus of claim 1 , further comprising a second touch electrode disposed on the display panel, the second touch electrode extending in a third direction perpendicular to the first direction and electrically insulated from the first touch electrode,
wherein the second touch electrode comprises:
second touch patterns; and
a bridge pattern connecting adjacent second touch patterns in the third direction.

3. The display apparatus of claim 2 , further comprising a protective layer disposed between the display panel and the first touch electrode,
wherein the first and second touch electrodes are disposed between the polarizing member and the protective layer.

4. The display apparatus of claim 2 , further comprising a protective layer disposed between the display panel and the first touch electrode,
wherein the polarizing member is disposed between the protective layer and the display panel.

5. The display apparatus of claim 2 , wherein the first directional angle is substantially 45 degrees.

6. The display apparatus of claim 2 , further comprising a bending area,
wherein the display apparatus is configured to be bent in the bending area with respect to a reference axis substantially parallel to the third direction.

7. The display apparatus of claim 6 , wherein the bending area is configured to be bent to have a convex shape.

8. The display apparatus of claim 2 , wherein a side of the first touch patterns and a side of the second touch patterns each has a zigzag shape.

9. The display apparatus of claim 8 , wherein edges of the zigzag shape each has a curved shape.

10. The display apparatus of claim 9 , further comprising dummy patterns disposed between and electrically insulated from the first touch patterns and the second touch patterns,
wherein a portion of an edge of each of the dummy patterns has a curved shape.

11. A display apparatus comprising:
a display panel configured to display an image;
a polarizing member disposed on the display panel and comprising an absorption axis and a transmission axis perpendicular to the absorption axis; and
a touch electrode disposed on the display panel and overlapping the polarizing member, the touch electrode comprising a bending area configured to be bent with respect to a reference axis perpendicular to a first direction,
wherein:
the touch electrode has a minimum width in a direction perpendicular to a second direction;
the first direction, the second direction, and an absorption axis direction cross each other, the absorption axis direction is substantially parallel to the absorption axis;
the first direction and the absorption axis direction form a first directional angle equal to or less than substantially 90 degrees;
the first direction and the second direction form a second directional angle equal to or less than substantially 90 degrees;
the second direction and the absorption axis direction form a third directional angle equal to or less than substantially 90 degrees; and
the first directional angle is the sum of the second directional angle and the third directional angle.

12. The display apparatus of claim 11 , wherein:
an angle between the first direction and the absorption axis direction in a counter-clock wise direction with respect to the first direction is more than substantially degrees and equal to or less than substantially 90 degrees; and
an angle between the first direction and the second direction in the counter-clock wise direction is less than the first directional angle.

13. The display apparatus of claim 12 , wherein an angle between the first direction and the absorption axis direction in the counter-clockwise direction is substantially 45 degrees.

14. The display apparatus of claim 11 , wherein:
an angle between the first direction and the absorption axis direction in a clockwise direction with respect to the first direction is more than substantially 0 degrees and equal to or less than substantially 90 degrees; and
an angle between the first direction and the second direction in the clockwise direction is less than the first directional angle.

15. The display apparatus of claim 14 , wherein the angle between the first direction and the absorption axis direction in the clockwise direction is substantially 45 degrees.

16. A display apparatus comprising:
a display panel configured to display an image;
a first touch electrode disposed on the display panel and extending in a first direction; and
a polarizing member disposed on the display panel, the polarizing member having an absorption axis and a transmission axis perpendicular to the absorption axis,
wherein:
the first touch electrode comprises:
first touch patterns; and
a connection pattern connecting adjacent first touch patterns in the first direction and extending along a second direction crossing the first direction and the absorption axis direction;

a width of the connection pattern has a minimum width in a direction perpendicular to the second direction; and
a portion of a side of the first touch electrode has a curved shape.

17. The display apparatus of claim 16 , further comprising a second touch electrode disposed on the display panel, the second touch electrode extending in a third direction perpendicular to the first direction and electrically insulated from the first touch electrode,
wherein:
the second touch electrode comprises:
second touch patterns; and
a bridge pattern connecting adjacent second touch patterns; and

a portion of an edge of the second touch patterns has a curved shape.

18. The display apparatus of claim 17 , further comprising dummy patterns disposed between and electrically insulated from the first touch patterns and the second touch patterns,
wherein a portion of an edge of each of the dummy patterns has a curved shape.

19. The display apparatus of claim 17 , wherein a side of the first touch patterns and a side of the second touch patterns each has a zigzag shape.

20. The display apparatus of claim 19 , wherein edges of the zigzag shape each has a minimum radius of curvature equal to or greater than substantially 0.1 mm.

21. A display a

Assignees

• Samsung Display Co Ltd

Inventors

• Lee Innam
• Park Jungmok
• Park Heewoong
• Lee Kangwon
• Lee Jeongheon
• Lee Hyunjae

Classifications

• G06F3/041 Primary

  Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means · CPC title

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title

• G06F3/044

  by capacitive means · CPC title

• G06F2203/04103

  Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices · 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