TOUCH DISPLAY APPARATUS

• US 20170192590A1
• Filed: 12/14/2016
• Published: 07/06/2017
• Est. Priority Date: 01/06/2016
• Status: Abandoned Application

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: LIM, Sanghyun, JUNG, Changsub, JO, Ara, CHOI, Jaewoo
• Application Number:
  US15/378,281
• Publication Number:
  US 20170192590A1
• Time in Patent Office: Days
• CPC Class Codes: G02B 6/0051 Diffusing sheet or layer
• CPC Class Codes: G02B 6/0053 Prismatic sheet or layer; Brightness enhancement element, sheet or layer
• CPC Class Codes: G02B 6/0055 Reflecting element, sheet or layer
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G02F 1/133514 Colour filters
• CPC Class Codes: G02F 1/133528 Polarisers
• CPC Class Codes: G02F 1/133615 Edge-illuminating devices, i.e. illuminating from the side
• CPC Class Codes: G02F 1/133707 Structures for producing distorted electric fields, e.g. bumps, protrusions, recesses, slits in pixel electrodes
• CPC Class Codes: G02F 1/134309 characterised by their geometrical arrangement
• CPC Class Codes: G02F 1/134318 having a patterned common electrode
• CPC Class Codes: G02F 1/134381 Hybrid switching mode, i.e. for applying an electric field with components parallel and orthogonal to the substrates
• CPC Class Codes: G02F 1/136286 Wiring, e.g. gate line, drain line
• CPC Class Codes: G02F 1/1368 in which the switching element is a three-electrode device G02F1/136277 takes precedence
• CPC Class Codes: G02F 2201/123 pixel
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/04164 Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
• CPC Class Codes: G06F 3/044 by capacitive means
• CPC Class Codes: G06F 3/0447 Position sensing using the local deformation of sensor cells

Abstract

A touch display apparatus includes a display panel, a receiving container and a touch controller. The display panel includes a metal pattern. The metal pattern includes a gate metal pattern and a data metal pattern. The gate metal pattern includes a gate line extending in a first direction. The data metal pattern includes a data line extending in a second direction crossing the first direction. The display panel is configured to display an image. The receiving container receives the display panel and includes a metal. The touch controller includes a first connecting line electrically connected to the metal pattern and a second connecting line electrically connected to the receiving container. The touch controller is configured to sense change of capacitance due to change of difference between the metal pattern and the receiving container.

Claims

1. A touch display apparatus comprising:

a display panel comprising a metal pattern comprising a gate metal pattern and a data metal pattern, wherein

the gate metal pattern comprises a gate line extending in a first direction and a gate electrode electrically connected to the gate line,

the data metal pattern comprises a data line extending in a second direction crossing the first direction,

a source electrode is electrically connected to the data line and a drain electrode spaced apart from the source electrode, and

the display panel configured to display an image;

a receiving container receiving the display panel and comprising a metal; and

a touch controller comprising a first connecting line electrically connected to the metal pattern and a second connecting line electrically connected to the receiving container, wherein the touch controller is configured to sense a change of capacitance due to a change of a distance between the metal pattern and the receiving container.

2. The touch display apparatus of claim 1, wherein the first connecting line is electrically connected to the gate metal pattern.

3. The touch display apparatus of claim 2, further comprising a backlight assembly disposed between the display panel and the receiving container.

4. The touch display apparatus of claim 3, wherein the backlight assembly comprises:

a light source part configured to provide light to the display panel; and

a light guide plate configured to guide the light provided from the light source part.

5. The touch display apparatus of claim 4, further comprising:

a diffusing sheet disposed on the light guide plate and configured to diffuse the light exited from the light guide plate; and

a prism sheet configured to condense the light exiting from the diffusing sheet.

6. The touch display apparatus of claim 1, wherein the first connecting line is connected to the data metal pattern.

7. The touch display apparatus of claim 6, further comprising a backlight assembly disposed between the display panel and the receiving container.

8. The touch display apparatus of claim 7, wherein the backlight assembly comprises:

a light source part configured to provide light to the display panel; and

a light guide plate configured to guide the light provided from the light source part.

9. The touch display apparatus of claim 8, further comprising:

a diffusing sheet disposed on the light guide plate and configured to diffuse the light exited from the light guide plate; and

a prism sheet configured to condense the light exited from the diffusing sheet.

10. The touch display apparatus of claim 1, wherein the change of capacitance due to the change of a distance between the metal pattern and the receiving container is determined by following equation:

C=ε

*A/d,

wherein C is the capacitance, A is an area of sensing the capacitance, ε

is permittivity of free air space, and d is the distance between the metal pattern and the receiving container.

11. A touch display apparatus comprising:

a display panel comprising a metal pattern comprising a gate metal pattern and a data metal pattern, wherein

the gate metal pattern comprises a gate line extending in a first direction and a gate electrode electrically connected to the gate line,

the data metal pattern comprises a data line extending in a second direction crossing the first direction,

a source electrode is electrically connected to the data line and a drain electrode spaced apart from the source electrode, and

the display panel configured to display an image;

a reflective sheet disposed under the display panel wherein the reflective sheet spaced apart from the display panel and the reflective sheet comprises a metal; and

a touch controller comprising a first connecting line electrically connected to the metal pattern and a second connecting line electrically connected to the reflective sheet, wherein

the touch controller is configured to sense a change of capacitance due to a change of a distance between the metal pattern and the reflective sheet.

12. The touch display apparatus of claim 11, wherein the first connecting line is electrically connected to the gate metal pattern.

13. The touch display apparatus of claim 12, further comprising a backlight assembly disposed between the display panel and the reflective sheet.

14. The touch display apparatus of claim 13, wherein the backlight assembly comprises:

a light source part configured to provide light to the display panel; and

a light guide plate configured to guide the light provided from the light source part.

15. The touch display apparatus of claim 14, further comprising:

a diffusing sheet disposed on the light guide plate and configured to diffuse the light exited from the light guide plate; and

a prism sheet configured to condense the light exiting from the diffusing sheet.

16. The touch display apparatus of claim 11, wherein the first connecting line is connected to the data metal pattern.

17. The touch display apparatus of claim 16, further comprising a backlight assembly disposed between the display panel and the reflective sheet.

18. The touch display apparatus of claim 17, wherein the backlight assembly comprises:

a light source part configured to provide light to the display panel; and

a light guide plate configured to guide the light provided from the light source part.

19. The touch display apparatus of claim 18, further comprising:

a diffusing sheet disposed on the light guide plate and configured to diffuse the light exited from the light guide plate; and

a prism sheet configured to condense the light exited from the diffusing sheet.

20. The touch display apparatus of claim 11, wherein the change of capacitance due to the change of a distance between the metal pattern and the reflective sheet is determined by following equation:

C=ε

*A/d,

wherein C is the capacitance, A is an area of sensing the capacitance, ε

is permittivity of free air space, and d is the distance between the metal pattern and the reflective sheet.