Driving Method for Electrophoretic Display Panel and Electrophoretic Display Apparatus using the same

• US 20100238106A1
• Filed: 12/08/2009
• Published: 09/23/2010
• Est. Priority Date: 03/20/2009
• Status: Abandoned Application

• Current Assignee: Prime View International Company Limited (E Ink Holdings Incorporated)
• Original Assignee: Prime View International Company Limited (E Ink Holdings Incorporated)
• Inventors: Chien, Chun-Ta, Chang, Heng-Hao
• Application Number:
  US12/632,803
• Publication Number:
  US 20100238106A1
• Time in Patent Office: Days
• US Class Current: 345/107
• CPC Class Codes: G09G 2300/0842 forming a memory circuit, e.g. a dynamic memory with one capacitor
• CPC Class Codes: G09G 2310/0267 Details of drivers for scan electrodes, other than drivers for liquid crystal, plasma or OLED displays
• CPC Class Codes: G09G 2320/0219 Reducing feedthrough effects in active matrix panels, i.e. voltage changes on the scan electrode influencing the pixel voltage due to capacitive coupling
• CPC Class Codes: G09G 3/344 based on particles moving in a fluid or in a gas, e.g. electrophoretic devices electrophoretic devices per se G02F1/167

Abstract

A driving method for an electrophoretic display panel and an electrophoretic display apparatus using the same are provided. The electrophoretic display apparatus comprises the electrophoretic display panel and a gate driver. The driving method comprises the following steps: employing a gate driver to output gate-driving signals to the electrophoretic display panel for enabling the electrophoretic display panel to perform an image-updating operation; enabling the gate driver to stop outputting the gate-driving signals to the electrophoretic display panel in a period after performing the image-updating operation and before performing a next image-updating operation.

Claims

1. A driving method for an electrophoretic display panel, comprising:

employing a gate driver to output gate-driving signals to the electrophoretic display panel for enabling the electrophoretic display panel to perform an image-updating operation; and

enabling the gate driver to stop outputting the gate-driving signals to the electrophoretic display panel in a period after performing the image-updating operation and before performing a next image-updating operation.

2. The driving method as claimed in claim 1, wherein the way of enabling the gate driver to stop outputting the gate-driving signals comprises stopping providing a working power supply to the gate driver.

3. The driving method as claimed in claim 1, wherein the way of enabling the gate driver to stop outputting the gate-driving signals comprises disconnecting an inner kernel circuit of the gate driver from outer output-terminals of the gate driver for enabling the outer output-terminals in a floating state, the aforementioned inner kernel circuit is configured for generating the gate-driving signals and the aforementioned outer output-terminals are coupled to the electrophoretic display panel.

4. The driving method as claimed in claim 1, wherein the way of enabling the gate driver to stop outputting the gate-driving signals comprises enabling the gate driver to output the gate-driving signals which voltage values are zero.

5. An electrophoretic display apparatus, comprising:

an electrophoretic display panel; and

a gate driver coupled to the electrophoretic display panel for outputting gate-driving signals to the electrophoretic display panel, wherein the gate-driving signals enable the electrophoretic display panel to perform an image-updating operation, and the gate driver stops outputting the gate-driving signals to the electrophoretic display panel in a period after performing the image-updating operation and before performing a next image-updating operation.

6. The electrophoretic display apparatus as claimed in claim 5, wherein the electrophoretic display apparatus stops providing a working power supply to the gate driver when the gate driver needs to stop outputting the gate-driving signals.

7. The electrophoretic display apparatus as claimed in claim 5, wherein the gate driver disconnects an inner kernel circuit thereof from outer output-terminals of the gate driver for enabling the outer output-terminals in a floating state when the gate driver needs to stop outputting the gate-driving signals, the aforementioned inner kernel circuit is configured for generating the gate-driving signals and the aforementioned outer output-terminals are coupled to the electrophoretic display panel.

8. The electrophoretic display apparatus as claimed in claim 5, wherein the gate driver outputs the gate-driving signals which voltage values are zero when the gate driver needs to stop outputting the gate-driving signals.