ELECTROPHORETIC DISPLAY PANEL DRIVING METHOD AND ELECTROPHORETIC DISPLAY PANEL

• US 20090184897A1
• Filed: 11/17/2008
• Published: 07/23/2009
• Est. Priority Date: 01/18/2008
• Status: Abandoned Application

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: MIYAMOTO, Tsutomu
• Application Number:
  US12/271,973
• Publication Number:
  US 20090184897A1
• Time in Patent Office: Days
• US Class Current: 345/76
• CPC Class Codes: G02F 1/134318 having a patterned common electrode
• CPC Class Codes: G02F 2201/121 common or background
• CPC Class Codes: G02F 2201/122 having a particular pattern
• CPC Class Codes: G09G 2300/0426 Layout of electrodes and connections
• CPC Class Codes: G09G 2310/0218 with collection of electrodes in groups for n-dimensional addressing
• 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 3/035 for flexible display surfaces
• 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
• 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 electrophoretic display panel includes an element substrate, a counter substrate, and an electrophoretic display layer interposed between the element substrate and the counter substrate. The element substrate includes a first data line set including plural data lines, second data line sets each including plural data lines branched from each of the plural data lines of the first data line set, plural scanning lines, and plural pixel electrodes. The plural pixel electrodes are disposed at locations where the plural data lines of the second data line sets intersect with the plural scanning lines. The counter substrate includes plural common electrodes, and one or more common electrodes is disposed opposite the plural pixel electrodes corresponding to one of the second data line sets.

Claims

1. An electrophoretic display panel which includes an element substrate, a counter substrate, and an electrophoretic display layer interposed between the element substrate and the counter substrate,

wherein the element substrate includes a first data line set including plural data lines, second data line sets each including plural data lines branched from each of the plural data lines of the first data line set, plural scanning lines, and plural pixel electrodes,

wherein the plural pixel electrodes are disposed at locations where the plural data lines of the second data line sets intersect with the plural scanning lines, and

wherein the counter substrate includes plural common electrodes, and one or more common electrodes is disposed opposite the plural pixel electrodes corresponding to one of the second data line sets.

2. The electrophoretic display panel according to claim 1, wherein one of the plural common electrodes is disposed opposite the plural pixel electrodes corresponding to one of the second data line sets.

3. The electrophoretic display panel according to claim 1, wherein the plural common electrodes are disposed opposite the plural pixel electrodes corresponding to one of the second data line sets so as to be parallel to an arrangement direction of the data lines of the second data line set.

4. The electrophoretic display panel according to claim 1,

wherein the plural scanning lines includes a first scanning line set including plural signal lines and second scanning line sets each including plural signal lines branched from each of the plural signal lines of the first scanning line set,

wherein the second scanning line sets intersect with the second data line sets, and

wherein each of the plural common electrodes is disposed opposite the plural pixel electrodes corresponding to a location where one of the second data line sets interests with one of the second scanning line sets.

5. The electrophoretic display panel according to claim 1, wherein each of the plural pixel electrodes is supplied with voltage through an organic transistor.

6. A method of driving an electrophoretic display panel which includes an element substrate, a counter substrate, and an electrophoretic display layer interposed between the element substrate and the counter substrate,

wherein the element substrate includes a first data line set including plural data lines, second data line sets each including plural data lines branched from each of the plural data lines of the first data line set, plural scanning lines, and plural pixel electrodes,

wherein the plural pixel electrodes are disposed at locations where the plural data lines of the second data line sets intersect with the plural scanning lines,

wherein the counter substrate includes plural common electrodes and one or more common electrodes is disposed opposite the plural pixel electrodes corresponding to one of the second data line sets,

wherein a data signal output to the first data line set is updated by the number of the second data line sets while one of the plural scanning lines is driven to be in an active state, and

wherein voltage necessary for display change is supplied at update timing of the data signal to one of the plural common electrodes disposed opposite the location corresponding to one of the second data line sets corresponding to the updated data signal.

7. The method according to claim 6, wherein one of the plural common electrodes is disposed opposite the plural pixel electrodes corresponding to one of the second data line sets.

8. The method according to claim 6,

wherein the plural common electrodes are disposed opposite the plural pixel electrodes corresponding to one of the second data line sets so as to be parallel to an arrangement direction of the data lines of the second data line set, and

wherein each of the data lines corresponding to the disposed plural common electrodes is updated in update of the number of the second data line sets, and the voltage necessary for display change is supplied to one of the plural common electrodes at the update timing.

9. The method according to claim 6,

wherein the plural scanning lines includes a first scanning line set including plural signal lines and second scanning line sets each including plural signal lines branched from each of the plural signal lines of the first scanning line set,

wherein the second scanning line sets intersect with the second data line sets,

wherein each of the plural common electrodes is disposed opposite the plural pixel electrodes corresponding to a location where one of the plural second data line sets interests with one of the plural second scanning line sets, and

wherein the voltage necessary for the display change is supplied to one of the plural pixel electrodes by driving one of the plural signal lines at a display location of a data signal output the second data line sets.

10. The method according to claim 9, wherein the voltage necessary for the display change is simultaneously supplied to two of the plural common electrodes adjacent to each other in a direction parallel to the arrangement direction of the second scanning line sets during a certain period.