Touch display panel and touch display apparatus

Patent metadata

Field	Value
Publication number	US-9395571-B2
Application number	US-201414167801-A
Country	US
Kind code	B2
Filing date	Jan 29, 2014
Priority date	Feb 1, 2013
Publication date	Jul 19, 2016
Grant date	Jul 19, 2016

Abstract

A touch display panel comprises a display panel, a touch panel and a circuit connection board. The display panel includes a first substrate and a second substrate which are disposed oppositely. The touch panel is disposed over the display panel. The circuit connection board is disposed on the touch panel and physically and electrically connected to the touch panel. At least a portion of the circuit connection board overlaps the first substrate in a direction perpendicular to the display panel. A touch display apparatus is also disclosed.

First claim

What is claimed is:

1. A touch display panel, comprising:
a display panel including a first substrate and a second substrate which are disposed oppositely;
a touch panel disposed over the display panel;
a buffer element disposed between the display panel and the touch panel, wherein the buffer element has a first width in a top view of the touch display panel, the first substrate has a second width in the top view of the touch display panel, and the first width is greater than the second width; and
a circuit connection board disposed on the touch panel and electrically connected to the touch panel,
wherein at least a portion of the circuit connection board overlaps the first substrate in a direction perpendicular to the display panel.

2. The touch display panel as recited in claim 1 , wherein the circuit connection board at least partially overlaps the second substrate in a direction perpendicular to the display panel.

3. The touch display panel as recited in claim 1 , wherein the area of the touch panel is less than or equal to that of the first substrate in a direction perpendicular to the display panel.

4. The touch display panel as recited in claim 1 , wherein the touch panel and the display panel are staggered.

5. The touch display panel as recited in claim 1 , wherein the display panel further includes a first polarization plate and a second polarization plate, the first polarization plate is disposed on the side of the first substrate away from the second substrate, and the second polarization plate is disposed between the second substrate and the touch panel.

6. The touch display panel as recited in claim 5 , wherein a gap between the touch panel and the second polarization plate is less than or equal to 0.1 mm.

7. The touch display panel as recited in claim 1 , wherein the display panel includes a driving circuit board, and the touch panel is electrically connected to the driving circuit board through the circuit connection board.

8. A touch display apparatus, comprising:
a touch display panel including a display panel, a touch panel, a buffer element and a circuit connection board, wherein the display panel includes a first substrate and a second substrate which are disposed oppositely, the touch panel is disposed over the display panel, the buffer element is disposed between the display panel and the touch panel and has a first width in a to view of the touch display panel, the first substrate has a second width in the to view of the touch display panel, and the first width is greater than the second width, the circuit connection board is disposed on the touch panel and physically and electrically connected to the touch panel, and at least a portion of the circuit connection board overlaps the first substrate in a direction perpendicular to the display panel; and
a backlight module disposed on the side of the display panel away from the touch panel.

9. The touch display apparatus as recited in claim 8 , wherein the circuit connection board at least partially overlaps the second substrate in a direction perpendicular to the display panel.

10. The touch display apparatus as recited in claim 8 , wherein the area of the touch panel is less than or equal to that of the first substrate in a direction perpendicular to the display panel.

11. The touch display apparatus as recited in claim 8 , wherein the touch panel and the display panel are staggered.

12. The touch display apparatus as recited in claim 8 , wherein the display panel includes a driving circuit board, and the touch panel is electrically connected to the driving circuit board through the circuit connection board.

13. The touch display apparatus as recited in claim 8 , further comprising:
a plastic frame which is adjacent to the backlight module, wherein the display panel and the touch panel are disposed to the plastic frame; and a rear frame to which the plastic frame, the backlight module, the display panel and the touch display are disposed.

14. The touch display apparatus as recited in claim 8 , further comprising:
an adhesive element by which the touch panel, the display panel and/or the backlight module are connected together; and
a rear frame to which the adhesive element, the backlight module, the display panel and the touch display are disposed.

15. The touch display apparatus as recited in claim 13 , wherein the plastic frame and the rear frame are connected to each other by locking or adhering.

16. The touch display apparatus as recited in claim 14 , further comprising:
a light blocking element disposed at the outside of the rear frame.

17. The touch display apparatus as recited in claim 14 , further comprising:
a front frame disposed at an edge of the touch display panel and including a blocking portion which is disposed above the touch display panel and has a surface, wherein an angle is formed between an extension of the surface and an upper surface of the touch display panel and is between 5° and 30°.

18. A touch display panel, comprising:
a display panel including a first substrate and a second substrate which are disposed oppositely;
a touch panel disposed over the display panel and staggered with the display panel;
a buffer element disposed between the display panel and the touch panel, wherein the buffer element has a first width in a top view of the touch display panel, the first substrate has a second width in the top view of the touch display panel, and the first width is greater than the second width; and
a circuit connection board disposed on the touch panel and electrically connected to the touch panel,
wherein at least a side of the touch panel is disposed between the first substrate and the second substrate in a direction perpendicular to the display panel.

19. The touch display panel as recited in claim 18 , wherein at least a portion of the circuit connection board overlaps the first substrate in a direction perpendicular to the display panel.

Assignees

• Innolux Corp

Inventors

• Lin Kuan-Li
• Chang Chih-Jen
• Lo Ching-I
• Sah Wen-Jyh
• Lin Tien-Jen
• Kuo Cheng-Hsia
• Fu Ying-Chia

Classifications

• G02F1/13452

  Conductors connecting driver circuitry and terminals of panels · CPC title

• G02F1/13338 Primary

  Input devices, e.g. touch panels · CPC title