# US 10,502,984 B2 · Electronic ink sealing chamber, manufacturing method thereof and display device

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- Number: US 10,502,984 B2
- Document ID: US10502984B2
- Status: Granted
- Kind: B2
- Application number: 15/572,680
- Filed: 2017-05-05
- Published: 2018-10-04
- Granted: 2019-12-10
- Earliest claimed: 2016-08-19
- Assignees: Boe Technology Group Co., Ltd.; Beijing Boe Display Technology Co., Ltd.
- Applicants: Boe Technology Group Co., Ltd.; Beijing Boe Display Technology Co., Ltd.
- Inventors: Mingchao Wang; Junwei Wang
- Web page: https://patentgrep.com/patent/US10502984B2

## CPC

- G02B 26/026: {based on the rotation of particles under the influence of an external field, e.g. gyricons, twisting ball displays (based on orientable dipolar particles G02F1/172; based on electrophoresis G02F1/167)}
- G02F 1/0107: {Gaskets, spacers or sealing of cells; Filling and closing of cells}
- G02F 1/1676: Electrodes
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS

## Abstract

An electronic ink sealing chamber, a manufacturing method thereof and a display device are provided. The electronic ink sealing chamber includes: a housing and electronic ink sealed inside the housing, a plurality of electrode groups being provided on inner sides of the housing, each of the electrode groups including a first electrode and a second electrode provided opposite to the first electrode, a connection line between a center of the first electrode and a center of the second electrode of each of the electrode groups being a line of centers, and any two of lines of centers of the plurality of electrode groups being not parallel to each other. When these lines of centers are in a same plane, they are intersected with each other.

## Claims

### Claim 1

An electronic ink sealing chamber, comprising a housing in a shape of polyhedron and electronic ink sealed inside the polyhedron at least three electrode groups being provided on inner sides of the polyhedron,
each of the electrode groups comprising a first electrode and a second electrode disposed an opposite faces of inner sides of the polyhedron, a connection line between a center of the first electrode and a center of the second electrode of each of the electrode groups being a line of centers, and any two of lines of centers of the at least three electrode groups being not parallel to each other.

### Claim 2 (depends on 1)

The electronic ink sealing chamber according to claim 1, wherein an included angle of lines of centers of two adjacent electrode groups is larger than 0degree and less than or equal to 45 degrees.

### Claim 3 (depends on 1)

The electronic ink sealing chamber according to claim 1, wherein the electronic ink sealing chamber comprises a display side and a non-display side provided opposite to the display side, the first electrodes of the at least three electrode groups are arranged on the display side in sequence, and the second electrodes of the at least three electrode groups are arranged on the non-display side in sequence.

### Claim 4 (depends on 1)

The electronic ink sealing chamber according to claim 1, wherein any two of the first electrodes of the at least three electrode groups are insulated from each other, and any two of the second electrodes of the at least three electrode groups are insulated from each other.

### Claim 5 (depends on 1)

The electronic ink sealing chamber according to claim 1, wherein at least two of the first electrodes of the at least three electrode groups are electrically connected, and at least two of the second electrodes of the at least three electrode groups are electrically connected.

### Claim 6 (depends on 1)

The electronic ink sealing chamber according to claim 1, wherein the electronic ink comprises a charged particle, and the charged particle comprises a white portion and a black portion.

### Claim 7 (depends on 1)

The electronic ink sealing chamber according to claim 1, wherein a material of the first electrode and the second electrode comprises a transparent conductive material.

### Claim 8

A manufacturing method of an electronic ink sealing chamber, comprising:
forming at least one electrode on a sub-housing;
bonding a plurality of sub-housings each provided with the at least one electrode, together, to form a chamber in a shape of polyhedron, and sealing electronic ink inside the polyhedron having been formed,
the at least one electrode being positioned inside the sealing chamber to constitute at least three electrode groups therein: each of the at least three electrode groups comprising a first electrode and a second electrode disposed on the opposite faces of inner sides of the polyhedron, a connection line between a center of the first electrode and a center of the second electrode of each of the at least three electrode groups being a line of centers, and any two of lines of centers of the plurality of electrode groups being not parallel to each other.

### Claim 9 (depends on 8)

The manufacturing method of the electronic ink sealing chamber according to claim 8, wherein an included angle of lines of centers of two adjacent electrode groups is larger than 0 degree and less than or equal to 45 degrees.

### Claim 10 (depends on 8)

The manufacturing method of the electronic ink sealing chamber according to claim 8, wherein the electronic ink sealing chamber comprises a display side and a non-display side provided opposite to the display side, the first electrodes of the at least three electrode groups are arranged on the display side in sequence, and the second electrodes of the at least three electrode groups are arranged on the non-display side in sequence.

### Claim 11 (depends on 8)

The manufacturing method of the electronic ink sealing chamber according to claim 8, wherein any two of the first electrodes of the at least three electrode groups are insulated from each other, and any two of the second electrodes of the at least three electrode groups are insulated from each other.

### Claim 12 (depends on 8)

The manufacturing method of the electronic ink sealing chamber according to claim 8, wherein at least two of the first electrodes of the at least three electrode groups are electrically connected, and at least two of the second electrodes of the at least three electrode groups are electrically connected.

### Claim 13 (depends on 1)

A display device, comprising a plurality of electronic ink sealing chambers, each of the plurality of electronic ink sealing chambers being the electronic ink sealing chamber of claim 1, and the plurality of electronic ink sealing chambers being bonded together to form a combined body.

### Claim 14 (depends on 13)

The display device according to claim 13, wherein a protection layer is provided outside the combination body.

### Claim 15 (depends on 13)

The display device according to claim 13, wherein the display device comprises electronic paper.

### Claim 16 (depends on 2)

The electronic ink sealing chamber according to claim 2, wherein the electronic ink sealing chamber comprises a display side and a non-display side provided opposite to the display side, the first electrodes of the at least three electrode groups are arranged on the display side in sequence, and the second electrodes of the at least three electrode groups are arranged on the non-display side in sequence.

### Claim 17 (depends on 2)

The electronic ink sealing chamber according to claim 2, wherein any two of the first electrodes of the at least three electrode groups are insulated from each other, and any two of the second electrodes of the at least three electrode groups are insulated from each other.

### Claim 18 (depends on 2)

The electronic ink sealing chamber according to claim 2, wherein at least two of the first electrodes of the at least three electrode groups are electrically connected, and at least two of the second electrodes of the at least three electrode groups are electrically connected.

### Claim 19 (depends on 1)

The electronic ink sealing chamber according to claim 1, wherein the first electrode and the second electrode in each of the at least three electrode groups are parallel to each other,
the at least three electrode groups comprises a first electrode group, a second electrode group and a third electrode group, the line of centers of the second electrode group and the line of centers of the third electrode group are symmetric with respect to the first electrode group.
