ELECTROPHORETIC DISPLAY, ELECTRONIC APPARATUS, AND METHOD FOR DRIVING ELECTROPHORETIC DISPLAY

• US 20100085343A1
• Filed: 09/09/2009
• Published: 04/08/2010
• Est. Priority Date: 10/03/2008
• Status: Abandoned Application

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: YAMADA, Toshimichi
• Application Number:
  US12/555,865
• Publication Number:
  US 20100085343A1
• Time in Patent Office: Days
• US Class Current: 345/211
• CPC Class Codes: G09G 2300/0426 Layout of electrodes and connections
• CPC Class Codes: G09G 2300/0857 Static memory circuit, e.g. flip-flop
• CPC Class Codes: G09G 2300/0871 with level shifting
• CPC Class Codes: G09G 2320/0252 Improving the response speed
• 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

An electrophoretic display includes a first electrode, a second electrode that is provided opposite to the first electrode, an electrophoretic element being sandwiched between the first electrode and the second electrode, a pixel switching element connected to a scanning line and a data line, a memory circuit connected to the pixel switching element a switching circuit disposed between the memory circuit and the first electrodes, a first power line and a second power line connected to the memory circuit, and a first control line and a second control line connected to the switching circuit. In the electrophoretic display, at least one of the first control line and the second control line is disposed in parallel with the scanning line or the data line when viewed in plan.

Claims

1. An electrophoretic display comprising:

a first electrode;

a second electrode that is provided opposite to the first electrode;

an electrophoretic element being sandwiched between the first electrode and the second electrode;

a pixel switching element connected to a scanning line and a data line;

a memory circuit connected to the pixel switching element;

a switching circuit disposed between the memory circuit and the first electrodes;

a first power line and a second power line connected to the memory circuit; and

a first control line and a second control line connected to the switching circuit,

wherein at least one of the first control line and the second control line is disposed in parallel with the scanning line or the data line when viewed in plan.

2. The electrophoretic display according to claim 1,

wherein the scanning line and the data line cross each other;

and

the first control line and the second control line cross each other.

3. The electrophoretic display according to claim 1,

wherein the electrophoretic display includes a plurality of pixels, and each of the plurality of pixels has the first electrode, the second electrode, the electrophoretic element, the pixel switching element, the memory circuit, the switching circuit, the first power line and the second power line, the first control line and the second control line, and

wherein the pixels adjacent to each other share at least one of the first power line, the second power line, the first control line, and the second control line.

4. The electrophoretic display according to claim 3,

wherein planar arrangements of the pixels adjacent to each other that share at least one of the first power line, the second power line, the first control line, and the second control line are line-symmetric to each other with respect to the shared line.

5. The electrophoretic display according to claim 3,

wherein the pixels adjacent to each other share at least one of the first power line and the second power line;

and

the scanning lines or the data lines are disposed in parallel on both sides of one of the first power line and the second power line shared by the pixels adjacent to each other.

6. An electronic apparatus comprising the electrophoretic display according to claim 1 as a display section.

7. A method for driving an electrophoretic display, the electrophoretic display including:

a first electrode;

a second electrode that is provided opposite to the first electrode;

an electrophoretic element being sandwiched between the first electrode and the second electrode;

a pixel switching element connected to a scanning line and a data line;

a memory circuit connected to the pixel switching element;

a switching circuit disposed between the memory circuit and the first electrodes;

a first power line and a second power line connected to the memory circuit; and

a first control line and a second control line connected to the switching circuit, and

wherein at least one of the first control line and the second control line is disposed in parallel with the scanning line or the data line when viewed in plan, and

the method comprising;

bringing the at least one of the first control line and the second control line that extends in parallel with the scanning line or the data line to a high impedance state when a signal voltage is applied to the scanning line and the data line.