TOUCH SCREEN PANEL, TOUCH SENSING APPARATUS HAVING THE SAME AND DRIVING METHOD THEREOF

• US 20140022186A1
• Filed: 12/12/2012
• Published: 01/23/2014
• Est. Priority Date: 07/23/2012
• Status: Abandoned Application

• Current Assignee: Samsung Display Company Limited (Samsung Group)
• Original Assignee: Samsung Display Company Limited (Samsung Group)
• Inventors: HONG, Won-Ki, NAM, Seung-Ho, PARK, Ji-Hong, CHOI, Moon-Sung
• Application Number:
  US13/711,907
• Publication Number:
  US 20140022186A1
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/0416 Control or interface arrangements specially adapted for digitisers
• CPC Class Codes: G06F 3/04164 Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
• CPC Class Codes: G06F 3/04166 Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally G06F3/04184
• CPC Class Codes: G06F 3/044 by capacitive means
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes

Abstract

A touch screen panel includes a driving line including a plurality of touch driving units, a sensing line substantially parallel to the driving line and which includes a plurality of touch sensing units, a first driving router disposed adjacent to the driving line and which transmits a first touch pulse to one of an even-numbered touch driving unit and an odd-numbered touch driving unit of the touch driving units, a second driving router disposed adjacent to the driving line and which transmits a second touch pulse to the other of the even-numbered touch driving unit and the odd-numbered touch driving unit of the touch driving units and a plurality of sensing routers connected to each of the touch sensing units and which receives a sensing signal from the touch sensing units.

Claims

1. A touch screen panel comprising:

a driving line comprising a plurality of touch driving units;

a sensing line substantially parallel to the driving line and which comprises a plurality of touch sensing units;

a first driving router disposed adjacent to the driving line and which transmits a first touch pulse to one of an even-numbered touch driving unit and an odd-numbered touch driving unit of the touch driving units;

a second driving router disposed adjacent to the driving line and which transmits a second touch pulse to the other of the even-numbered touch driving unit and the odd-numbered touch driving unit of the touch driving units; and

a plurality of sensing routers connected to each of the touch sensing units and which receives a sensing signal from the touch sensing units.

2. The touch screen panel of claim 1, wherein the touch driving units and the touch sensing units are disposed in a zigzag pattern.

3. The touch screen panel of claim 1, wherein the touch driving units adjacent to each other are disposed to correspond with a center portion of the touch sensing unit.

4. The touch screen panel of claim 1, wherein the touch sensing units adjacent to each other are disposed to correspond with a center portion of the touch driving unit.

5. The touch screen panel of claim 1, wherein the touch driving unit comprises two driving pads electrically connected to each other.

6. The touch screen panel of claim 5, wherein the driving pads are connected to each other through a driving bridge.

7. The touch screen panel of claim 6, wherein a width of the driving bridge is substantially narrower than that of the driving pad.

8. The touch screen panel of claim 1, wherein the touch sensing unit comprises two sensing pads electrically connected to each other.

9. The touch screen panel of claim 8, wherein the sensing pads are connected to each other through a sensing bridge.

10. The touch screen panel of claim 9, wherein a width of the sensing bridge is substantially narrower than that of the sensing pad.

11. The touch screen panel of claim 1, wherein

a touch driving unit in an upper-most portion comprises an outer-most peripheral driving pad,

a touch driving unit in a lower-most portion comprises an outer-most peripheral driving pad, and

each of the remaining touch driving units comprises two driving pads electrically connected to each other.

12. The touch screen panel of claim 11, wherein each of the touch sensing units comprises two sensing pads electrically connected to each other.

13. The touch screen panel of claim 1, wherein

a touch driving unit in an upper-most portion comprises an outer-most peripheral driving pad,

a touch driving unit in a lower-most portion comprises an outer-most peripheral driving pad, and

each of the remaining touch driving units comprises a driving pad having a size substantially greater than a size of the outer-most peripheral driving pad of the touch driving unit in the upper-most portion or the lower-most portion.

14. The touch screen panel of claim 13, wherein each of the touch sensing units comprises a sensing pad having a size substantially greater than the size of the outer-most peripheral driving pad of the touch driving unit in the upper-most portion or the lower-most portion.

15. The touch screen panel of claim 1, wherein

a touch sensing unit in an upper-most portion comprises an outer-most peripheral sensing pad,

a touch sensing unit in a lower-most portion comprises an outer-most peripheral sensing pad, and

each of the remaining touch sensing units comprises a sensing pad having a size substantially greater than a size of the outer-most peripheral sensing pad of the touch sensing unit in the upper-most portion or the lower-most portion.

16. The touch screen panel of claim 15, wherein each of the touch driving units comprises a driving pad having a size substantially greater than the size of the outer-most peripheral sensing pad of the touch sensing unit in the upper-most portion or the lower-most portion.

17. The touch screen panel of claim 1, further comprising:

a plurality of touch sensing lines, each of which comprises the sensing line and the driving line;

a ground line disposed between the sensing line of an n-th touch sensing line and the driving line of an (n+1)-th touch sensing line, wherein n is a natural number.

18. The touch screen panel of claim 1, wherein the driving line, the sensing line, the first and second driving routers and the sensing routers includes a same material.

19. The touch screen panel of claim 1, wherein the driving line, the sensing line, the first and second driving routers and the sensing routers are disposed in a same layer.

20. A touch sensing apparatus comprising:

a touch screen panel comprising;

a plurality of touch sensing lines, each of which comprises;

a driving line comprising a plurality of touch driving units; and

a sensing line substantially parallel to the driving line and which comprises a plurality of touch sensing units;

a first driving router disposed adjacent to the driving line and which transmits a first touch pulse to one of an even-numbered touch driving unit and an odd-numbered touch driving unit of the touch driving units;

a second driving router disposed adjacent to the driving line an which transmits a second touch pulse to the other of the even-numbered touch driving unit and the odd-numbered touch driving unit of the touch driving units; and

a plurality of sensing routers connected to each of the touch sensing units and which receives a sensing signal from the touch sensing units;

a touch pulse generating part which provides each of the first and second driving routers with the first touch pulse and the second touch pulse, respectively;

a sensing signal collecting part connected to each of the sensing routers and which receives a sensing signal provided from the sensing router; and

a controller configured to control an operation of the touch pulse generating part and the sensing signal collecting part to calculate a touch coordinate based on the sensing signal transmitted to the sensing signal collecting part.

21. The touch sensing apparatus of claim 20, wherein

the touch pulse generating part simultaneously applies the first touch pulse to the even-numbered touch driving unit of the driving line of each of the touch sensing lines, and

the touch pulse generating part simultaneously applies the second touch pulse to the odd-numbered touch driving unit of the driving line of each of the touch sensing lines.

22. The touch sensing apparatus of claim 21, wherein the sensing signal collecting part collects the sensing signal from all of the touch sensing units during a period, during which the first touch pulse and the second touch pulse are applied to the even-numbered touch driving unit and the odd-numbered touch driving unit of the driving line of each of the touch sensing lines, respectively.

23. The touch sensing apparatus of claim 20, wherein the touch pulse generating part sequentially applies the first and second touch pulses to the first and second driving routers, respectively.

24. The touch sensing apparatus of claim 23, wherein the sensing signal collecting part collects the sensing signal from the touch sensing units of the sensing line adjacent to the driving line, to which the first and second touch pulses are applied.

25. The touch sensing apparatus of claim 20, wherein the touch driving units and the touch sensing units are disposed in a zigzag pattern.

26. A method of driving a touch sensing apparatus, the method comprising:

applying a first touch pulse and a second touch pulse to an even-numbered touch driving unit and odd-numbered touch driving unit, respectively, wherein the touch sensing apparatus includes a plurality of driving lines, each of which comprises the even-numbered touch driving unit and the odd-numbered touch driving unit;

collecting a plurality of sensing signals from a plurality of touch sensing units of a sensing line of the touch sensing apparatus during a period, during which the first and second touch pulses are applied to the even-numbered touch driving unit and the odd-numbered touch driving unit of each of the driving lines, respectively; and

calculating a touch coordinate based on the collected sensing signals.

27. The method of claim 26, wherein

the first touch pulse is simultaneously applied to the even-numbered touch driving unit of each of the driving lines, and

the second touch pulse is simultaneously applied to the odd-numbered touch driving unit of each of the driving lines.

28. The method of claim 27, wherein the sensing signals are collected from all of the touch sensing units during a period, during which the first touch pulse and the second touch pulse are applied to the even-numbered touch driving unit and the odd-numbered touch driving unit of each of the driving lines, respectively.