Driving methods and devices using the same

1 . A driving method for a display device comprising a plurality of pixels arranged in rows, the method comprising:

scanning N th and (N+K) th rows of pixels sequentially and providing a signal of a first polarity in sequence to the N th and (N+K) th rows of scanned pixels, during a first period of a frame period; and

scanning (N+1) th and (N+K+1) th rows of pixels sequentially and providing a signal of a second polarity in sequence to the scanned rows of pixels, during a second period of the frame period, wherein N and K are both integers, N>0, K is even and K>1.

2 . The driving method as claimed in claim 1 , wherein the first polarity is a negative voltage level with respect to a common voltage during the first period, and the second polarity is a positive voltage level with respect to the common voltage during the second period.

3 . The driving method as claimed in claim 2 , wherein the common voltage is kept at a positive voltage level during the first period and at a negative voltage level during the second period.

4 . The driving method as claimed in claim 2 , wherein a (N+2K) th row of pixels is scanned after the (N+K) th row of pixels during the first period, and a (N+2K+1) th row of pixels is scanned after the (N+K+1) th row of pixels during the second period.

5 . A driving method for a display device comprising a plurality of pixels arranged in rows, the method comprising:

scanning odd-numbered rows of pixels sequentially and providing a signal of a first polarity in sequence to the odd-numbered rows of scanned pixels, during a first period of a frame period; and

scanning even-numbered rows of pixels sequentially and providing a signal of a second polarity in sequence to the even-numbered rows of scanned pixels, during a second period of the frame period.

6 . The driving method as claimed in claim 5 , wherein the first polarity is a negative voltage level with respect to a common voltage during the first period, and the second polarity is a positive voltage level with respect to the common voltage during the second period.

7 . The driving method as claimed in claim 6 , wherein the common voltage is kept at a positive voltage level during the first period and at a negative voltage level during the second period.

8 . A device, comprising:

a display element comprising a plurality of pixels arranged in rows and columns;

a gate driver comprising a plurality of parallel gate lines, each gate line coupled to a corresponding row of pixels, and scanning a first row and a second row of pixels in sequence during a first period of a frame period, and scanning a third row and fourth row of pixels during a second period of the frame period, wherein the first and second rows of pixels are not adjacent and the third and fourth rows of pixels are not adjacent; and

a data driver comprising a plurality of parallel data lines, each orthogonal to the gate lines and coupled to a corresponding column of pixels, providing a signal of a first polarity in sequence to the scanned rows of pixels during the first period and a signal of a second polarity in sequence to the scanned rows of pixels during the second period.

9 . The device as claimed in claim 8 , wherein the gate driver scans N th and (N+K) th rows of pixels sequentially during the first period, and scans (N+1) th and (N+K+1) th rows of pixels sequentially during the second period, and N and K are both integers, N>0, K is even and K>1.

10 . The device as claimed in claim 9 , wherein the gate driver further scans a (N+2K) th row of pixels after the (N+K) th row of pixels during the first period, and further scans a (N+2K+1) th row of pixels after the (N+K+1) th row of pixels during the second period.

11 . The device as claimed in claim 8 , wherein the gate driver scans odd-numbered rows of pixels sequentially during the first period and scans even-numbered rows of pixels sequentially during the second period.

12 . The device as claimed in claim 8 , wherein the first polarity is a negative voltage level with respect to a common voltage during the first period, and the second polarity is a positive voltage level with respect to the common voltage during the second period.

13 . The device as claimed in claim 12 , wherein the common voltage is kept at a positive voltage level during the first period and at a negative voltage level during the second period.

14 . The device as claimed in claim 8 , wherein the display element is a liquid crystal display element.

15 . The device as claimed in claim 8 , further comprising a controller controlling scanning of the gate driver and signal providing of the data driver.

16 . The device as claimed in claim 8 , wherein the display element, gate driver and data driver are incorporated into a display device; and further comprising:

a DC/DC converter coupled to the display device, wherein the display device is powered by the DC/DC converter.

17 . The device as claimed in claim 8 , wherein the display element, gate driver and data driver are incorporated into a display device; and

further comprising means for powering the display device.

18 . The electronic device as claimed in claim 15 , wherein the electronic device is a PDA, a display monitor, a notebook computer, a tablet computer, or a cellular phone.

19 . A device comprising:

means for scanning odd-numbered rows of pixels sequentially and providing a signal of a first polarity in sequence to the odd-numbered rows of scanned pixels, during a first period of a frame period; and

means for scanning even-numbered rows of pixels sequentially and providing a signal of a second polarity in sequence to the even-numbered rows of scanned pixels, during a second period of the frame period.

20 . The device as claimed in claim 19 , further comprising means for powering the means for scanning.