Method and system or driving a display apparatus

• US 20070164978A1
• Filed: 07/25/2006
• Published: 07/19/2007
• Est. Priority Date: 01/16/2006
• Status: Abandoned Application

• Current Assignee: Himax Technologies Incorporated
• Original Assignee: Himax Technologies Incorporated
• Inventors: Chang, Shu-Ming, Bai, Shwang-Shi, Liang, Shen-Yao, Huang, Yu-Pei
• Application Number:
  US11/492,580
• Publication Number:
  US 20070164978A1
• Time in Patent Office: Days
• US Class Current: 345/102
• CPC Class Codes: G09G 2310/02 Addressing, scanning or driving the display screen or processing steps related thereto
• CPC Class Codes: G09G 2310/0218 with collection of electrodes in groups for n-dimensional addressing
• CPC Class Codes: G09G 2310/024 Scrolling of light from the illumination source over the display in combination with the scanning of the display screen
• CPC Class Codes: G09G 3/3406 Control of illumination source illumination devices structurally associated with liquid crystal cells G02F1/1336
• CPC Class Codes: G09G 3/3611 Control of matrices with row and column drivers

Abstract

The display apparatus has several display blocks. The display blocks are driven in a first sequence during a first frame period. The display blocks are driven in a second sequence during a second frame period immediately following the first frame period. The display block driven last in the first sequence is driven first in the second sequence, and an order of each of the other display blocks in the second sequence is higher than that in the first sequence by one.

Claims

1. A method for driving a display apparatus having a plurality of display blocks, the method comprising the steps of:

driving the display blocks in a first sequence during a first frame period; and

driving the display blocks in a second sequence during a second frame period immediately following the first frame period;

wherein the display block driven last in the first sequence is driven first in the second sequence, and an order of each of the other display blocks in the second sequence is higher than that in the first sequence by one.

2. The method as claimed in claim 1, wherein the display apparatus is a liquid crystal display (LCD).

3. The method as claimed in claim 1, wherein the display apparatus further comprises a backlight module having a plurality of backlight blocks corresponding to the display blocks in position, and each of the backlight blocks is turned on when a charging period of the corresponding display block is finished.

4. A method for controlling a backlight module having at least one backlight block, the method comprising the steps of:

turning on the backlight block during a first turning-on period within a first frame period; and

turning on the backlight block during a second turning-on period within a second frame period immediately following the first frame period;

wherein the first turning-on period within the first frame period is one other than a counterpart of the second turning-on period within the second frame period.

5. The method as claimed in claim 4, wherein the first and second frame periods are divided into a plurality of time sections, and one of the first and second turning-on periods comprises at least two of the time sections.

6. The method as claimed in claim 4, wherein a charging period of a display block corresponding to the backlight block is shorter than the first and second turning-on period.

7. A system for driving a display apparatus having a plurality of display blocks, the system comprising:

a sequence generating module determining a first and second sequence;

a gate driving control module controlling a plurality of gate driver groups of the display apparatus to scan the display blocks according to the first and second sequence; and

a data driving control module controlling a data driver circuit of the display apparatus to drive the display blocks scanned by the gate driver groups,

wherein, the display blocks are driven in the first sequence during a first frame period and driven in the second sequence during a second frame period immediately following the first frame period, the display block driven last in the first sequence is driven first in the second sequence, and an order of each of the other display blocks in the second sequence is higher than that in the first sequence by one.

8. The system as claimed in claim 7, wherein the display apparatus is a liquid crystal display (LCD).

9. The system as claimed in claim 7, wherein the display apparatus further comprises a backlight module having a plurality of backlight blocks each corresponding to one of the display blocks in position.

10. The system as claimed in claim 9, further comprising a backlight driving control module controlling a plurality of backlight driving groups of the display apparatus, each of which turns on and off one of the backlight blocks in response to a charging period of the corresponding display block.

11. The system as claimed in claim 10, wherein each of the backlight blocks is turned on when a charging period of the corresponding display block is finished.

12. A display apparatus, comprising:

a pixel array comprising a plurality of display blocks;

a plurality of gate driver groups scanning the display blocks;

a data driver circuit driving the display blocks scanned by the gate driver groups; and

a control circuit, comprising;

a sequence generating module outputting a first and second sequence;

a gate driving control module controlling a plurality of gate driver groups of the display apparatus to scan the display blocks according to the first and second sequence; and

a data driving control module used to control a data driver circuit to drive the display blocks scanned by the gate driver groups,

wherein, the display blocks are driven in the first sequence during a first frame period and driven in the second sequence during a second frame period immediately following the first frame period, the display block driven last in the first sequence is driven first in the second sequence, and an order of each of the other display blocks in the second sequence is higher than that in the first sequence by one.

13. The display apparatus as claimed in claim 12, wherein the display apparatus is a liquid crystal display (LCD).

14. The display apparatus as claimed in claim 12, further comprising a backlight module has a plurality of backlight blocks each corresponding to one of the display blocks in position.

15. The display apparatus as claimed in claim 14, wherein the control circuit further comprises a backlight driving control module controlling the backlight driving groups to turn on and off one of the backlight blocks in response to a charge period of the corresponding display block.

16. The display apparatus as claimed in claim 15, wherein each of the backlight blocks is turned on when a charging period of the corresponding display block is finished.

17. A method for driving a display apparatus having a plurality of display blocks, the method comprising the steps of:

driving the display blocks in a first sequence during a first frame period; and

driving the display blocks in a second sequence during a second frame period immediately following the first frame period;

wherein the first sequence is different from the second sequence.

18. The method as claimed in claim 17, wherein the display apparatus further comprises a plurality of backlight blocks each corresponding to one of the display blocks in position and the method further comprises the steps of:

turning on the backlight blocks in the first sequence during the first frame period; and

turning on the backlight blocks in the second sequence during the second frame period.