Driving Module for Display Device and Related Driving Method

Patent metadata

Field	Value
Publication number	US-2016372071-A1
Application number	US-201615156341-A
Country	US
Kind code	A1
Filing date	May 17, 2016
Priority date	Jun 22, 2015
Publication date	Dec 22, 2016
Grant date	—

Abstract

A driving module for a display device includes a first driving unit, for generating a plurality of data driving signals to a plurality of data lines of the display device according to a first control signal; and a control unit, for generating the first control signal to the first driving unit and a second control signal to a second driving unit of the display device; wherein the control unit controls the second driving unit to generate a plurality of gate driving signals to a plurality of scan lines of the display device via the second control signal, and durations of a plurality of gate enable periods in the plurality of gate driving signals are different.

First claim

What is claimed is:

1 . A driving module for a display device, comprising
a first driving unit, for generating a plurality of data driving signals to a plurality of data lines of the display device according to a first control signal; and a control unit, for generating the first control signal to the first driving unit and a second control signal to a second driving unit of the display device; wherein the control unit controls the second driving unit to generate a plurality of gate driving signals to a plurality of scan lines of the display device via the second control signal, and durations of a plurality of gate enable periods in the plurality of gate driving signals are different.

2 . The driving module of claim 1 , wherein the duration of the gate enable periods in each of the plurality of gate driving signals are proportional to a distance between the first driving unit and the scan line coupled each of the plurality of gate driving signals.

3 . The driving module of claim 1 , wherein a sum of the durations of the plurality of gate enable periods in the plurality of gate driving signal within a frame is equaled to a constant.

4 . The driving module of claim 3 , wherein the constant is determined according to a relationship between a refreshing rate of the display device and a number of the plurality of scan lines.

5 . The driving module of claim 3 , wherein the constant is determined according to a relationship among a refreshing rate of the display device, a number of the plurality of scan lines, and a number of a plurality of virtual scan lines.

6 . The driving module of claim 1 , wherein durations of a plurality of data enable periods in the plurality of data enable signals corresponding to a first scan line among the plurality of scan lines are proportional to a duration of a gate enable period of a first gate driving signal of the first scan line.

7 . The driving module of claim 1 , wherein the plurality of gate driving signals are classified into a plurality of gate driving signal groups, the durations of the gate enable periods of the gate driving signals in the same gate driving signal group are the same, and the durations of the gate enable periods of the gate driving signals in different gate driving signal groups are different.

8 . A driving method for a driving module of a display device, comprising:
generating a plurality of gate driving signals to a plurality of scan lines of the display device; wherein durations of a plurality of gate enable periods in the plurality of gate driving signals are different.

9 . The driving method of claim 8 , wherein the step of generating the plurality of gate driving signals to the plurality of scan lines of the display device comprises:
controlling a driving unit of the display device to generate the plurality of gate driving signal to the plurality of scan lines of the display device.

10 . The driving method of claim 8 , wherein the display device comprises a driving unit utilized for generating a plurality of data driving signal to a plurality of data lines of the display device and the duration of each gate enable period in each gate driving signal is proportional to a distance between the driving unit and the corresponded scan line coupled to each gate driving signal.

11 . The driving method of claim 8 , wherein a sum of the durations of the plurality of gate enable periods in the plurality of gate driving signals within a frame is equaled to a constant.

12 . The driving method of claim 11 , wherein the constant is determined according to a relationship between a refreshing rate of the display device and a number of the plurality of scan lines.

13 . The driving method of claim 11 , wherein the constant is determined according to a relationship among a refreshing rate of the display device, a number of the plurality of scan lines, and a number of a plurality of virtual scan lines.

14 . The driving method of claim 8 , further comprising:
generating a plurality of data driving signals of a first scan line among the plurality of scan line to a plurality data lines of the display device; wherein durations of a plurality of data enable period in the plurality of data driving signals are proportional to the duration of the gate enable period in a first gate driving signal of the plurality of gate driving signals corresponding to the first scan line.

15 . The driving method of claim 8 , wherein the plurality of gate driving signals are classified into a plurality of gate driving signal groups, the durations of the gate enable periods of the gate driving signals in the same gate driving signal group are the same, and the durations of the gate enable periods of the gate driving signals in different gate driving signal groups are different.

Assignees

• Sitronix Technology Corp

Inventors

• Ho Chi-Yang
• Kuo Wen-Yuan

Classifications

• G09G2320/0223

  Compensation for problems related to R-C delay and attenuation in electrodes of matrix panels, e.g. in gate electrodes or on-substrate video signal electrodes · CPC title

• G09G2310/08

  Details of timing specific for flat panels, other than clock recovery · CPC title

• G09G2310/067

  Special waveforms for scanning, where no circuit details of the gate driver are given · CPC title

• G09G2320/0233

  Improving the luminance or brightness uniformity across the screen · CPC title

• G09G3/3677 Primary

  suitable for active matrices only · CPC title