DRIVING METHOD

• US 20080252587A1
• Filed: 07/10/2007
• Published: 10/16/2008
• Est. Priority Date: 04/12/2007
• Status: Active Grant

• Current Assignee: AU Optronics Corporation
• Original Assignee: AU Optronics Corporation
• Inventors: Wang, Tsang-Hong, Chang, Fang-Lin, Lin, Yun-Chung
• Granted Patent: US 8,164,561 B2
• Time in Patent Office: Days
• US Class Current: 345/100
• CPC Class Codes: G09G 2300/08 Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
• CPC Class Codes: G09G 2310/02 Addressing, scanning or driving the display screen or processing steps related thereto
• CPC Class Codes: G09G 2320/0209 Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display
• CPC Class Codes: G09G 3/20 for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters

Abstract

A driving method for driving a display panel is provided. The display panel includes a plurality of scan lines, a plurality of data lines, and a plurality of pixel units electrically connected to the scan lines and the data lines. The driving method comprises enabling the pixel units controlled by the scan lines through different scanning sequences and inputs image data to the pixel units via the data lines in several consecutive frame times, wherein capacitance coupling effects between the pixel units are varied depending on the scanning sequences. Accordingly, the line mura caused by the capacitance coupling effect is restrained.

Claims

1. A driving method for driving a display panel comprising a plurality of scan lines, a plurality of data lines, and a plurality of pixel units electrically connected to the scan lines and the data lines, the driving method comprising:

enabling the pixel units controlled by the scan lines through different scanning sequences and inputting an image data to the pixel units via the data lines in several consecutive frame times, wherein capacitance coupling effects between the pixel units are varied depending on the scanning sequences.

2. The driving method as claimed in claim 1, wherein the scanning sequences comprise m scanning sequences, the consecutive frame times comprise (m*k) frame times, and m, k are positive integers.

3. The driving method as claimed in claim 2, wherein m=2.

4. The driving method as claimed in claim 3, wherein the pixel units are divided into a plurality of display bands, and each of the display bands is constituted by pixel units controlled by a part of the adjacent scan lines.

5. The driving method as claimed in claim 4, wherein the scanning sequences comprise:

enabling the pixel units in each of the display bands through a first scanning sequence in at least one frame time of 2k frame times; and

enabling the pixel units in each of the display bands through a second scanning sequence in the rest frame times of 2k frame times, wherein the second scanning sequence is contrary to the first scanning sequence.

6. The driving method as claimed in claim 2, wherein m=3.

7. The driving method as claimed in claim 6, wherein the pixel units are divided into a plurality of display bands, and each of the display bands is constituted by pixel units controlled by a part of the adjacent scan lines.

8. The driving method as claimed in claim 7, wherein the scanning sequences comprise:

enabling the pixel units in each of the display bands through a first scanning sequence in a part of the frame times in 3k frame times;

enabling the pixel units in each of the display bands through a second scanning sequence in another part of the frame times in 3k frame times; and

enabling the pixel units in each of the display bands through a third scanning sequence in the rest frame times in 3k frame times, wherein the first, second, and third scanning sequences are different from each other.

9. The driving method as claimed in claim 1, wherein the method of inputting the image data to the pixel units via the data lines comprises dot inversion driving, line inversion driving, or frame inversion driving.