Electronic paper display system

• US 20050246621A1
• Filed: 04/28/2005
• Published: 11/03/2005
• Est. Priority Date: 04/28/2004
• Status: Abandoned Application

• Current Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Inventors: Ogawa, Toshiyuki, Sakai, Hiroaki, Kitada, Takashi
• Application Number:
  US11/116,263
• Publication Number:
  US 20050246621A1
• Time in Patent Office: Days
• US Class Current: 715/277
• CPC Class Codes: G06F 3/147 using display panels
• CPC Class Codes: G09G 2380/02 Flexible displays
• CPC Class Codes: G09G 3/035 for flexible display surfaces
• CPC Class Codes: G09G 3/3433 using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices using liquid crystal devices G09G3/36; using electrochromic devices G09G3/38
• CPC Class Codes: G09G 3/3486 using light modulating elements actuated by a magnetic field

Abstract

It is an object to provide an electronic paper display system capable of communicating in non-contact with an electronic paper by transfer apparatus and managing information by use of an electronic paper high in illegibility and portability as a medium of information display. An electronic paper display system that communication is made with display apparatus 2 having an electronic paper and wireless tag from transfer apparatus 1 capable of accessing a PC or a network, to perform a personal identification, based on which display information is transferred. Meanwhile, by transfer apparatuses 1 arranged in plurality in a space, the electronic paper is detected to manage information.

Claims

1. An electronic paper display system comprising:

a display apparatus, having;

an electronic paper unit for holding a display state in a power-free state and displaying an image information by an application of magnetism or an electric field,

a display-side communication unit for wirelessly transmitting and receiving information with a transfer apparatus, and

a recording unit for generating an image based on received information and recording the image to the electronic paper unit; and

a transfer apparatus, having;

a transfer-side communication unit for wirelessly transmitting and receiving information with the display apparatus; and

an interface circuit for connection to an information processing apparatus;

wherein an image information produced at the information processing apparatus is transmitted in non-contact to the display apparatus through the transfer apparatus.

2. The electronic paper display system according to claim 1, wherein the transfer apparatus and the information processing apparatus are configured in one body.

3. The electronic paper display system according to claim 1 or 2, wherein the information processing apparatus has an information processing program for producing and managing information to be outputted to the display apparatus;

the display apparatus has a discrete ID; and

the information processing apparatus executes the information processing program so as to recognize ID information about the display device from the transfer apparatus and produce and manage image information according to the ID recognized.

4. The electronic paper display system according to claim 3, wherein a wireless tag is used for mounting the discrete ID on the display apparatus.

5. The electronic paper display system according to claim 4, wherein the wireless tag is provided on at least one of the electronic paper unit and a display unit main body.

6. The electronic paper display system according to claim 1 or 2, wherein the transfer apparatus has a power feed function to feed power by an electromagnetic wave;

the display apparatus has a storage battery for generating power from an electromagnetic wave received from the transfer apparatus and storing the power.

7. The electronic paper display system according to claim 6, wherein the display apparatus has a detection unit for detecting a remaining capacity of the storage battery, to display a result of the detection.

8. The electronic paper display system according to claim 1 or 2, wherein the electronic paper unit is removable from the display apparatus.

9. The electronic paper display system according to claim 8, wherein the attachment/detachment mechanism for the electronic paper unit and the display apparatus is controlled according to the information processing program of the information processing apparatus.

10. The electronic paper display system according to claim 1 or 2, wherein the electronic paper unit has a display device in a structure sandwiching a developer by a sheet free of an electrode;

the display apparatus having;

a surface arranging an electrode in an entire surface thereof for resting the electronic paper unit thereon;

a line-type application recording head for writing image information to the electronic paper unit; and

a drive mechanism for the line-type application recording head;

wherein an electric field is applied to between the electrode and the application recording head, so as to move the application recording head relative to the electronic paper unit or to move the electronic paper unit relative to the application recording head.

11. The electronic paper display system according to claim 1 or 2, wherein the electronic paper unit has a display device in a structure sandwiching a developer by a sheet free of an electrode;

the display apparatus has;

a lid, having a surface arranging an electrode in an entire surface thereof so as to sandwich the electronic paper unit;

a multiplicity of pixel electrodes arranged to write image information to the electronic paper unit, and a drive circuit for applying electric field to between the entire-surface electrode and the pixel electrodes.

12. The electronic paper display system according to claim 1 or 2, wherein the electronic paper unit has a display device in a structure sandwiching a developer by a sheet free of an electrode and a transparent sheet having an electrode only on one surface thereof, the display apparatus arranging a multiplicity of pixel electrodes for recording on an entire surface for resting the electronic paper unit thereon and having a drive circuit for driving the electrode.

13. The electronic paper display system according to any of claims 1 to 5, wherein the transfer apparatus has a discrete identification symbol and an interface circuit for connection to a communication network, the information processing apparatus being to exclusively manage a plurality of transfer apparatuses.

14. The electronic paper display system according to claim 1 or 2, wherein at least one of the transfer apparatus and the display apparatus has an alert unit for giving an alert to a user.

15. The electronic paper display system according to claim 1, wherein the transfer apparatus has a display unit.

16. The electronic paper display system according to any of claims 3 to 5, further including a plurality of information processing apparatuses each having the information processing program, the information processing programs on the apparatuses being to associatively operate thereby producing and managing image information.

17. The electronic paper display system according to claim 1 or 2, wherein the recording unit has a circuit structured of an organic semiconductor.

18. The electronic paper display system according to claim 1 or 2, wherein an antenna used on a communication unit in the display apparatus and transfer apparatus is formed of an organic material.