DISPLAY AND ELECTRONIC APPARATUS EQUIPPED WITH SAME

• US 20100214272A1
• Filed: 02/17/2010
• Published: 08/26/2010
• Est. Priority Date: 02/23/2009
• Status: Abandoned Application

• Current Assignee: InnoLux Corporation
• Original Assignee: TPO Displays Corporation (InnoLux Corporation)
• Inventors: Watsuda, Hirofumi
• Application Number:
  US12/707,635
• Publication Number:
  US 20100214272A1
• Time in Patent Office: Days
• US Class Current: 345/205
• CPC Class Codes: G09G 2320/0247 Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
• CPC Class Codes: G09G 3/3655 Details of drivers for counter electrodes, e.g. common electrodes for pixel capacitors or supplementary storage capacitors

Abstract

An active matrix display capable of compensating leaking current while maintaining the aperture rate is provided. The active matrix display device has a plurality of pixels arranged as a matrix, and each of the pixels includes a liquid crystal display element; a driving control switch for controlling the driving of the liquid crystal display element; and a storage capacitor for storing image data provided to the liquid crystal display element via the driving control switch. The display device is an active matrix display device comprising voltage-compensating means for applying a specified voltage to one end of the storage capacitor opposite to another end coupled to the liquid crystal display element in a maintaining period.

Claims

1. An active matrix display device having a plurality of pixels arranged as a matrix, each of the pixels comprising:

a liquid crystal display element;

a driving control switch for controlling the driving of the liquid crystal display element; and

a storage capacitor for storing image data provided to the liquid crystal display element via the driving control switch;

wherein the display device is an active matrix display device comprising voltage-compensating means for applying a specified voltage to one end of the storage capacitor opposite to another end coupled to the liquid crystal display element in a maintaining period.

2. The active matrix display device according to claim 1 wherein the voltage-compensating means has the specified voltage change at multiple levels in the maintaining period according to previously programmed voltage steps.

3. The active matrix display device according to claim 2 wherein the voltage-compensating means has the specified voltage linearly change in the maintaining period.

4. The active matrix display device according to claim 1 wherein the voltage-compensating means applies the specified voltage to the storage capacitor via the CS lines.

5. The active matrix display device according to claim 1 wherein the voltage-compensating means includes:

a voltage source for providing the specified voltage;

a voltage-step storing member for storing previously programmed voltage steps; and

a power control member for controlling the voltage source in order to having the specified voltage change at multiple levels in the maintaining period according to previously programmed voltage steps.

6. An electronic apparatus comprising an active matrix display device as recited in claim 1.

7. An electronic apparatus comprising an active matrix display device as recited in claim 2.

8. An electronic apparatus comprising an active matrix display device as recited in claim 3.

9. An electronic apparatus comprising an active matrix display device as recited in claim 4.

10. An electronic apparatus comprising an active matrix display device as recited in claim 5.