Parallelogram electrode touch panel

1. A touch panel, comprising:

a plurality of electrodes, forming a sensing area having a first border and a second border substantially perpendicular to each other, disposed on a same plane, comprising:

a parallelogram electrode, having two first sides parallel to the first border and two second sides parallel to neither the first border nor the second border; and

a right-angle triangle electrode, having a hypotenuse and two legs, wherein the hypotenuse is parallel to the two second sides of the parallelogram electrode, and one of the legs is parallel to the second border; and

a connecting wire corresponding to the parallelogram electrode extending from an angle of the parallelogram electrode closest to the second border,

wherein capacitance changes generated by the parallelogram electrode are used for calculating both a first direction coordinate and a second direction coordinate of a touch position.

2. The touch panel according to claim 1 , wherein each row of electrodes comprises a parallelogram electrode and two right-angle triangle electrodes.

3. The touch panel according to claim 1 , wherein each row of the electrodes comprises two parallelogram electrodes and two right-angle triangle electrodes.

4. The touch panel according to claim 1 , further comprising:

N number of sensors, and a controller;

wherein, N is a positive integer greater than 1, the N number of sensors sense capacitance changes generated by the electrodes, and the controller calculates a touch position according to equations:

x

=

∑

i

=

1

N

⁢

(

C

i

*

X

i

)

∑

i

=

1

N

⁢

C

i

;

y

=

∑

i

=

1

N

⁢

(

C

i

*

Y

i

)

∑

i

=

1

N

⁢

C

i

,

where x represents a first-direction coordinate and y represents a second-direction coordinate of the touch position, i is an integral index from 1 and N, C i represents the capacitance change sensed by the i th sensor, X i represents a first-direction coordinate of a center of gravity of the electrode connected to the i th sensor, and Y i represents a second-direction coordinate of a center of gravity of the electrode connected to the i th sensor.

5. The touch panel according to claim 1 , a positioning approach thereof being self-capacitive or mutual-capacitive.

6. The touch panel according to claim 1 , further comprising:

a plurality of sensors and

a controller,

wherein each of the plurality of electrodes is a driving electrode at a time point, the electrodes adjacent to the driving electrode are a plurality of receiving electrodes, and the sensors sense capacitance changes generated by the receiving electrodes, respectively.