ELECTRONIC PAPER DISPLAY DEVICE

• US 20110291921A1
• Filed: 01/05/2011
• Published: 12/01/2011
• Est. Priority Date: 05/27/2010
• Status: Active Grant

• Current Assignee: E Ink Holdings Incorporated
• Original Assignee: E Ink Holdings Incorporated
• Inventors: HSIAO, Po-Wen, Hwang, Gwo-Feng, Wang, Tzu-Ming, Chuang, Kai-Cheng
• Granted Patent: US 8,810,507 B2
• Time in Patent Office: Days
• US Class Current: 345/107
• CPC Class Codes: G02F 1/167 by electrophoresis
• CPC Class Codes: G02F 1/1671 involving dry toners
• CPC Class Codes: G02F 1/1677 Structural association of cells with optical devices, e.g. reflectors or illuminating devices
• CPC Class Codes: G02F 1/1681 having two or more microcells partitioned by walls, e.g. of microcup type
• CPC Class Codes: G02F 2201/44 Arrangements combining different electro-active layers, e.g. electrochromic, liquid crystal or electroluminescent layers
• CPC Class Codes: G02F 2202/046 fluorescent
• CPC Class Codes: G09G 3/30 using electroluminescent panels
• CPC Class Codes: G09G 3/3406 Control of illumination source illumination devices structurally associated with liquid crystal cells G02F1/1336
• 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 electronic paper display device includes a first substrate, a plurality of display units and a plurality of light-emitting units. The first substrate includes first base and a plurality of electrodes disposed on the first base. The display units are disposed above the first substrate. The light-emitting units are respectively disposed between the display units and the first base.

Claims

1. An electronic paper display device, comprising:

a first substrate comprising a first base and a plurality of electrodes disposed on the first base;

a plurality of display units disposed above the first substrate; and

a plurality of light-emitting units respectively disposed between the display units and the first base.

2. The electronic paper display device as claimed in claim 1, wherein each light-emitting unit is a microcup structure, and the display units are filled in the microcup structures.

3. The electronic paper display device as claimed in claim 1, further comprising a plurality of microcup structures disposed on the first substrate, wherein each light-emitting unit is coated on a surface of the corresponding microcup structure, and the display units are filled in the microcup structures.

4. The electronic paper display device as claimed in claim 1, wherein the light-emitting units are made of a phosphorescent material or a fluorescent material.

5. The electronic paper display device as claimed in claim 1, wherein the electrodes are side electrodes arranged into a plurality of groups, each group of side electrode comprises a first electrode and a second electrode adjacent to the first electrode, each light-emitting unit is respectively disposed between the first electrode and the second electrode of the corresponding side electrode.

6. The electronic paper display device as claimed in claim 5, wherein the display units are microcup electrophoretic display units, microcapsule electrophoretic display units or liquid powder display units.

7. The electronic paper display device as claimed in claim 1, wherein each light-emitting is respectively disposed on the corresponding electrode.

8. The electronic paper display device as claimed in claim 7, wherein the display units are bead electrophoretic display units.

9. The electronic paper display device as claimed in claim 1, wherein each light-emitting unit is respectively disposed between the corresponding electrode and the first base.

10. The electronic paper display device as claimed in claim 9, wherein the display units are electrowetting display units.