Electronic paper, image formation apparatus, and printing control method

Patent metadata

Field	Value
Publication number	US-11320714-B2
Application number	US-201616335594-A
Country	US
Kind code	B2
Filing date	Dec 29, 2016
Priority date	Sep 22, 2016
Publication date	May 3, 2022
Grant date	May 3, 2022

Abstract

The present application discloses an image formation apparatus that can transfer an image into electronic paper using an electronic photography method, and a printing control method for the image formation apparatus. The present electronic paper comprises an electrophoresis layer for displaying an image using an electrophoresis method, a conductive layer, and a film layer for transmitting an image; and the image formation apparatus comprises a communication interface for receiving printing data, an image formation unit for transferring an image corresponding to the printing data, and a processor for controlling the image formation unit.

First claim

The invention claimed is:

1. An electronic paper comprising:
an electrophoretic layer to display an image in an electrophoretic manner;
a conductive layer to be disposed on top of the electrophoretic layer; and
a film layer to be disposed on bottom of the electrophoretic layer to transmit the displayed image,
wherein the electrophoretic layer includes a plurality of cell structures in which chargeable particles are moveable by application of respective potentials of members to the electrophoretic layer and the film layer to apply a potential difference between the electrophoretic layer and the film layer.

2. The electronic paper as claimed in claim 1 , wherein the cell structure is the form of a microcapsule or the form of a cup.

3. The electronic paper as claimed in claim 1 , wherein in each of the cell structures, the conductive layer forms an upper conductive layer and the film layer forms a lower film layer, and the charged particles are moved according to the potential difference between the upper conductive layer and the lower film layer of each of the cell structures.

4. The electronic paper as claimed in claim 1 , wherein the film layer is formed of a thermoplastic resin.

5. The electronic paper as claimed in claim 4 , wherein the film layer is formed of at least one material of an acrylic compound, an amide compound, a phthalate compound, polypropylene, and polyethylene.

6. The electronic paper as claimed in claim 1 , further comprising a protective layer to be disposed on at least one surface of the top and bottom of the electrophoretic layer.

7. The electronic paper as claimed in claim 6 , wherein the protective layer includes at least one of a cellulose pulp and an inorganic filler.

8. The electronic paper as claimed in claim 1 , wherein the electrophoretic layer and the film layer are bonded to each other by a conductive adhesive material.

9. The electronic paper as claimed in claim 1 , wherein the film layer has transparency of 60% or more.

10. An image formation apparatus comprising:
a communication interface to receive print data;
an image former to transfer an image corresponding to the received print data to an electronic paper, the electronic paper including,
an electrophoretic layer including a plurality of cell structures to display the image in an electrophoretic manner;
a conductive layer disposed on top of the electrophoretic layer; and
a film layer disposed on bottom of the electrophoretic layer to transmit the displayed image,
wherein the plurality of cell structures include chargeable particles that are moveable by application of respective potentials of members to the electrophoretic layer and the film layer to apply a potential difference between the electrophoretic layer and the film layer; and

a processor to perform an initialization by performing a control to apply, by a member, among the members, a common potential difference to each cell structure of the plurality of cell structures in the electronic paper, and to control the image former so that a potential value corresponding to the image is applied by a member, among the members, to each cell structure of the initialized plurality of cell structures.

11. The image formation apparatus as claimed in claim 10 , wherein the members having the respective potentials include:
a roller member to provide the common potential difference to each cell structure of the plurality of cell structures in the electronic paper; and
a photoreceptor to provide a potential difference corresponding to the image to the electronic paper passing through the roller member.

12. The image formation apparatus as claimed in claim 11 , wherein the roller member includes:
a first roller member to be rotated while being in contact with the conductive layer as an upper portion side of the electronic paper; and
a second roller member to be rotated while being in contact with the film layer as a lower portion side of the electronic paper, and
the first roller member and the second roller member provide different potentials to the electronic paper.

13. The image formation apparatus as claimed in claim 11 , wherein the image former further includes:
a charging member to charge the photoreceptor;
an exposure member to expose light corresponding to the image to the charged photoreceptor; and
a transfer member to transfer a surface potential of the photoreceptor to the electronic paper.

14. A printing control method of an image formation apparatus, the printing control method comprising:
initializing a plurality of cell structures of an electronic paper by applying a common potential difference to each cell structure of the plurality of cell structures, the electronic paper including,
an electrophoretic layer including the plurality of cell structures to display the image in an electrophoretic manner;
a conductive layer disposed on top of the electrophoretic layer; and
a film layer disposed on bottom of the electrophoretic layer to transmit the displayed image,
wherein the plurality of cell structures include chargeable particles that are moveable by application of respective potentials of members to the electrophoretic layer and the film layer to,
apply the common potential difference between the electrophoretic layer and the film layer, and
apply a potential value corresponding to an image to each cell structure of the initialized plurality of cell structures.

Assignees

• Hp Printing Korea Co Ltd
• Hewlett Packard Development Co

Inventors

• Park Heung-Sup
• Kim Eog-Kyu
• Kim Yun-Tae
• Lee Young-Su

Classifications

• G02F1/167 Primary

  by electrophoresis · CPC title

• G03G15/5008

  Driving control for rotary photosensitive medium, e.g. speed control, stop position control · CPC title

• G02F1/1675 Primary

  Constructional details · CPC title

• G02F2001/1678

  characterised by the composition or particle type · CPC title

• G03G15/6597

  the imaging being conformed directly on the copy material, e.g. using photosensitive copy material, dielectric copy material for electrostatic printing · CPC title