Driving Module and Driving Method

• US 20110279443A1
• Filed: 06/10/2010
• Published: 11/17/2011
• Est. Priority Date: 05/13/2010
• Status: Active Grant

• Current Assignee: Novatek Microelectronics Corporation (Novatek Microelectronics Corp Limited)
• Original Assignee: Novatek Microelectronics Corporation (Novatek Microelectronics Corp Limited)
• Inventors: Yu, Tsung-Yin, Chang, Yu-Pin, Hsia, Chih-Peng
• Granted Patent: US 9,196,210 B2
• Time in Patent Office: Days
• US Class Current: 345/214
• CPC Class Codes: G09G 2310/0251 Precharge or discharge of pixel before applying new pixel voltage
• CPC Class Codes: G09G 2310/0283 Arrangement of drivers for different directions of scanning
• CPC Class Codes: G09G 2320/0233 Improving the luminance or brightness uniformity across the screen
• CPC Class Codes: G09G 2320/0242 Compensation of deficiencies in the appearance of colours
• CPC Class Codes: G09G 3/3614 Control of polarity reversal in general
• CPC Class Codes: G09G 3/3688 suitable for active matrices only

Abstract

The present invention discloses a driving module for a liquid crystal display device. The driving module includes a data line signal processing unit, for generating a plurality of data driving signals, a scan line signal processing unit, for generating a plurality of gate driving signals, and a control unit, for controlling the data line signal processing unit and the gate line signal processing unit, such that a plurality of sub-pixels corresponding to a data line are with different charging orders in different frames, or are charged with different charging periods in a same frame.

Claims

1. A driving module for a liquid crystal display (LCD) device, the driving module comprising:

a data line signal processing unit, for generating a plurality of data driving signals;

a scan line signal processing unit, for generating a plurality of gate driving signals; and

a control unit, for controlling the data line signal processing unit and the scan line signal processing unit to charge a plurality of subpixels corresponding to a data line with different charging orders in different frames.

2. The driving module of claim. 1, wherein the control unit is further utilized for controlling the data line signal processing unit and the scan line signal processing unit, to charge the plurality of subpixels corresponding to the data line with reverse charging orders in two adjacent frames.

3. The driving module of claim 1, wherein the control unit is further utilized for controlling the data line signal processing unit and the scan line signal processing unit, to charge a first subpixel among the plurality of subpixels corresponding to the data line with a most prior charging order in a first frame;

and

to charge a second subpixel among the plurality of subpixels corresponding to the data line with the most prior charging order in a second frame adjacent to the first frame.

4. The driving module of claim 3, wherein the control unit is further utilized for controlling the data line signal processing unit and the scan line signal processing unit, to charge a third subpixel among the plurality of subpixels corresponding to the data line with the most prior charging order in a third frame adjacent to the second frame.

5. A driving method for liquid crystal display (LCD) device, the driving method comprising the steps of:

providing a plurality of data driving signals; and

providing a plurality of gate driving signals, and charging a plurality of subpixels corresponding to a data line with different charging orders indifferent frames according to the plurality of data driving signals and the plurality of gate driving signals.

6. The driving method of claim 5 further comprising charging the plurality of subpixels corresponding to the data line with reverse charging orders in two adjacent frames according to the plurality of data driving signals and the plurality of gate driving signals.

7. The driving method of claim 5 further comprising:

charging a first subpixel among the plurality of subpixels corresponding to the data line with a most prior charging order in a first frame according to the plurality of data driving signals and the plurality of gate driving signals; and

charging a second subpixel among the plurality of subpixels corresponding to the data line with the most prior charging order in a second frame adjacent to the first frame according to the plurality of data driving signals and the plurality of gate driving signals.

8. The driving method of claim 7 further comprising charging a third subpixel among the plurality of subpixels corresponding to the data line with the most prior charging order in a third frame adjacent to the second frame according to the plurality of data driving signals and the plurality of gate driving signals.

9. A driving module for a liquid crystal display (LCD) device, the driving module comprising:

a data line signal processing unit, for generating a plurality of data driving signals;

a scan line signal processing unit, for generating a plurality of gate driving signals; and

a control unit, for controlling the data line signal processing unit and the scan line signal processing unit, to charge a plurality of subpixels corresponding to a data line and a horizontal synchronization cycle with different charging periods in a same frame.

10. The driving module of claim 9, wherein the control unit is further utilized for controlling the data line signal processing unit and the scan line signal processing unit, to charge a subpixel with a most prior charging order among the plurality of subpixels corresponding to the data line and the horizontal synchronization cycle with a longest charging period in the same frame.

11. The driving module of claim 10, wherein the control unit is further utilized for controlling the data line signal processing unit and the scan line signal processing unit, to charge pixels other than the subpixel with a most prior charging order among the plurality of subpixels corresponding to the data line and the horizontal synchronization cycle with a same charging period in the same frame.

12. A driving method for liquid crystal display (LCD) device, the driving method comprising the steps of:

providing a plurality of data driving signals; and

providing a plurality of gate driving signals, and charging a plurality of subpixels corresponding to a data line and a horizontal synchronization cycle with different charging periods in a same frame according to the plurality of data driving signals and the plurality of gate driving signals.

13. The driving method of claim 12 further comprising charging a subpixel with a most prior charging order among the plurality of subpixels corresponding to the data line and the horizontal synchronization cycle with a longest charging period in the same frame according to the plurality of data driving signals and the plurality of gate driving signals.

14. The driving method of claim 13 further comprising charging pixels other than the subpixel with a most prior charging order among the plurality of subpixels corresponding to the data line and the horizontal synchronization cycle with a same charging period in the same frame according to the plurality of data driving signals and the plurality of gate driving signals.