CN101424783A - Electrowetting display - Google Patents
Electrowetting display Download PDFInfo
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- CN101424783A CN101424783A CNA2007101242544A CN200710124254A CN101424783A CN 101424783 A CN101424783 A CN 101424783A CN A2007101242544 A CNA2007101242544 A CN A2007101242544A CN 200710124254 A CN200710124254 A CN 200710124254A CN 101424783 A CN101424783 A CN 101424783A
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- partition wall
- electric moistening
- moistening display
- substrate
- light
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Abstract
The invention relates to an electric moistening display which is composed of a base board, a flow body arranged on the base board, and at least one insulation wall arranged on the base board, wherein each insulation wall is composed of materials which can absorb light rays. The electric moistening display can effectively improve the contrast gradient.
Description
Technical field
The present invention relates to a kind of electric moistening display.
Background technology
Electric moistening display is a kind of display of new development in recent years, and it has characteristics such as low power consumption, wide viewing angle and high response speed.Therefore, electric moistening display is fit to be applied to portable type electronic product very much.
Seeing also Fig. 1, is the diagrammatic cross-section of a kind of prior art electric moistening display when showing dark attitude.This electric moistening display 10 comprises a display panel 11 and one and the module backlight 12 that is oppositely arranged of this display panel 11.This module 12 backlight provides uniform planar backlight to this display panel 11.
This display panel 11 comprises one first substrate 13, one second substrate 14 that is oppositely arranged and is positioned at this first substrate 13 and first fluid 15, second fluid 16, a plurality of electrode 17, a repellency insulation course 18 and a plurality of partition wall 19 of 14 of this second substrates.
These a plurality of electrodes 17 are made by the electrically conducting transparent material, as tin indium oxide (Indium Tin Oxide, ITO) or indium zinc oxide (Indium Zinc Oxide, IZO).These a plurality of electrodes 17 are rectangular this second substrate, 14 surfaces that are arranged on, and each electrode 17 defines a pixel region P, and adjacent two pixel regions form a gap 171.
This repellency insulation course 18 is made by transparent material, and this repellency insulation course 18 covers should a plurality of electrodes 17 and this gap 171.
This a plurality of partition wall 19 is made by transparent material, and gap 171 that should electrode 17 is arranged on the surface of this repellency insulation course 18.This second fluid 16 is filled between the adjacent insulated walls 19.The material of this second fluid 16 is generally the alkane of opaque color oil or similar hexadecane.This first fluid 15 is filled between this second fluid 16 and this first substrate 13, and it is the electrically conducting transparent liquid immiscible with this second fluid 16, for example: water, salt solusion, the water that is dissolved with potassium chloride (KCl) and the mixed solution of ethanol.
When this first fluid 15 did not apply voltage with this electrode 17, this electric moistening display 10 was dark attitude.At this moment, this first fluid 15 and these second fluid, 16 stacked settings, and this second fluid 16 covers its corresponding electrode 17.This module 12 backlight is absorbed by this second fluid 16 through this second substrate 14, this electrode 17 and this repellency insulation course 18 successively with the light that these electrode 17 counterparts send.This module 12 backlight sees through this display panel 11 through this second substrate 14, this repellency insulation course 18, this partition wall 19, this first fluid 15 and this first substrate 13 successively with the light that these partition wall 19 counterparts send.
Seeing also Fig. 2, is the diagrammatic cross-section of electric moistening display shown in Figure 1 10 when showing bright attitude.Apply voltage on this first fluid 15 and this electrode 17, make this second fluid 16 shift to adjacent partition wall 19, thereby this first fluid 15 contacts with the part surface of this repellency insulation course 18.At this moment, the light that sends of this module 12 backlight sees through this display panel 11.
But, the partition wall 19 of this electric moistening display 10 is to be made by transparent material, when this electric moistening display 10 is dark attitude, this module 12 backlight sees through this display panel 11 with the light that these partition wall 19 counterparts send through this partition wall 19, brightness increases when causing the dark attitude of this electric moistening display 10, thereby reduces the contrast of these electric moistening display 10 display frames.
Summary of the invention
The low problem of contrast in order to solve electric moistening display display frame in the prior art the invention provides the high electric moistening display of a kind of contrast.
A kind of electric moistening display, it comprises that a substrate, is arranged at fluid and at least one partition wall that is arranged at this substrate of this substrate.Each partition wall comprises can light-absorbing material.
A kind of electric moistening display, it comprises that a substrate, is arranged at fluid and at least one partition wall that is arranged at this substrate of this substrate.This partition wall absorbs the light that shines this partition wall.
Compared with prior art, the partition wall of electric moistening display of the present invention absorbs the light that shines this partition wall, therefore, when this electric moistening display shows dark attitude, the light that shines this partition wall is absorbed, thereby the display brightness when reducing the dark attitude of this electric moistening display, and then improve the contrast of this electric moistening display display frame.
Description of drawings
Fig. 1 is the diagrammatic cross-section of a kind of prior art electric moistening display when showing dark attitude.
Fig. 2 is the diagrammatic cross-section of electric moistening display shown in Figure 1 when showing bright attitude.
Fig. 3 is the diagrammatic cross-section of the electric moistening display of first embodiment of the invention when showing dark attitude.
Fig. 4 is the schematic perspective view of electric moistening display part assembly shown in Figure 3.
Fig. 5 is the diagrammatic cross-section of electric moistening display shown in Figure 3 when showing bright attitude.
Fig. 6 is the diagrammatic cross-section of the electric moistening display of second embodiment of the invention when showing dark attitude.
Fig. 7 is the diagrammatic cross-section of the electric moistening display of third embodiment of the invention when showing dark attitude.
Fig. 8 is the diagrammatic cross-section of the electric moistening display of four embodiment of the invention when showing dark attitude.
Embodiment
Seeing also Fig. 3, is the electric moistening display of the first embodiment of the invention diagrammatic cross-section when showing dark attitude.This electric moistening display 20 comprises a display panel 21 and one and the module backlight 22 that is oppositely arranged of this display panel 21.This module 22 backlight provides uniform in-plane backlight to this display panel 21.
This display panel 21 comprises one first substrate 23, one second substrate 24 that is oppositely arranged and is positioned at this first substrate 23 and first fluid 25, second fluid 26, a plurality of electrode 27, a repellency insulation course 28 and a plurality of partition wall 29 of 24 of this second substrates.
These a plurality of electrodes 27 are made by the electrically conducting transparent material, as tin indium oxide or indium zinc oxide.These a plurality of electrodes 27 are rectangular this second substrate, 24 surfaces that are arranged on, and each electrode 27 defines a pixel region P, and adjacent two pixel regions form a gap 271.
This repellency insulation course 28 is made by transparent material, as the transparent amorphous fluoropolymer of repellency, is AF1600 in the present embodiment.This repellency insulation course 28 covers this a plurality of electrodes 27 and this gap 271.
See also Fig. 3 and Fig. 4, Fig. 4 is the schematic perspective view of electric moistening display 20 part assemblies shown in Figure 3.29 pairs of this partition walls should electrode 27 gap 271, and be the surface that trellis is arranged on this repellency insulation course 28.This is a plurality of receiving spaces of partition wall 29 formation (indicating) that trellis is provided with, and these a plurality of receiving spaces are corresponding one by one with the pixel region that these a plurality of electrodes 27 define respectively.
This partition wall 29 comprises one first partition wall 291 and second partition wall 292 that is cascading.These first partition wall, 291 contiguous these repellency insulation courses 28 are provided with.This first partition wall 291 is made by the material with low light transmittance, for example: be doped with carbon black (Carbon Black) or chromium (Chromium, resin Cr).Therefore, this first partition wall 291 forms a light-absorption layer.This second partition wall 292 is photic zones.
Please consult Fig. 3 again, this second fluid 26 is filled in the receiving space that adjacent partition wall 29 forms.The material of this second fluid 26 is generally the alkane of opaque color oil or similar hexadecane, is black ink in the present embodiment.This first fluid 25 is filled between this second fluid 26 and this first substrate 23, and it is the electrically conducting transparent liquid immiscible with this second fluid 26, for example: water, salt solusion, the water that is dissolved with potassium chloride (KCl) and the mixed solution of ethanol.
When this first fluid 25 did not apply voltage with this electrode 27, this electric moistening display 20 was dark attitude.At this moment, this first fluid 25 and these second fluid, 26 stacked settings, and this second fluid 26 covers its corresponding electrode 27.The light that this module 22 backlight and these electrode 27 counterparts send is stopped by this second fluid 26 through this second substrate 24, this electrode 27 and this repellency insulation course 28 successively or absorbs.And part light is after through second substrate 24 and repellency insulation course 28, stopped by this first partition wall 291 or absorbs.
Seeing also Fig. 5, is the diagrammatic cross-section of electric moistening display shown in Figure 3 20 when showing bright attitude.This first fluid 25 applies voltage with this electrode 27, make this second fluid 26 shift to adjacent partition wall 29, thereby this first fluid 25 contacts with the part surface of this repellency insulation course 28.At this moment, this module 22 backlight is absorbed by first partition wall 291 with this repellency insulation course 28 through this second substrate 24 successively with the light that these partition wall 29 counterparts send.This module 22 backlight is absorbed by this second fluid 26 through this second substrate 24, this electrode 27 and this repellency insulation course 28 successively with the light that these second fluid, 26 counterparts send.The light that these module 22 remainders backlight send sees through this display panel 21 through this second substrate 24, this electrode 27, this repellency insulation course 28, this first fluid 25 and this first substrate 23 successively.
Compared with prior art, the partition wall 29 of electric moistening display 20 of the present invention comprises one first partition wall 291, and this first partition wall 291 has the characteristic that absorbs or stop light.When this electric moistening display 20 was dark attitude, the light that this module 22 backlight and these partition wall 29 counterparts send was absorbed by this first partition wall 291 through this partition wall 29 time.Therefore, during the dark attitude of this electric moistening display 20, display brightness reduces, thereby improves the contrast of these electric moistening display 20 display frames.
Seeing also Fig. 6, is the electric moistening display of the second embodiment of the invention diagrammatic cross-section when showing dark attitude.The difference of the electric moistening display 20 of this electric moistening display 30 and first embodiment is: the partition wall 39 of this electric moistening display 30 comprises one first partition wall 391 and one second partition wall 392 that is cascading.This first partition wall 391 is light-absorption layers, and this second partition wall 392 is photic zones.The repellency insulation course 38 of these second partition wall, 392 contiguous these electric moistening displays 30 is provided with.
Seeing also Fig. 7, is the electric moistening display of the third embodiment of the invention diagrammatic cross-section when showing dark attitude.The difference of the electric moistening display 20 of this electric moistening display 40 and first embodiment is: the partition wall 49 of this electric moistening display 40 comprises one first partition wall 491 and one second partition wall 492.This first partition wall 491 is light-absorption layers, and this second partition wall 492 is photic zones.This second partition wall 492 is arranged at the surface of the repellency insulation course 48 of this electric moistening display 40.This first partition wall 491 is coated on the outside of this second partition wall 492.
Seeing also Fig. 8, is the electric moistening display of the four embodiment of the invention diagrammatic cross-section when showing dark attitude.The difference of the electric moistening display 20 of this electric moistening display 50 and first embodiment is: the partition wall 59 of electric moistening display 50 is whole light tight; For example, can directly adopt lighttight material to form this partition wall 59, or in the partition wall 59 of script printing opacity carbon-black doped or chromium, make this partition wall 59 whole light-absorption layers that form.
Feature of the present invention not only can be applicable to above-mentioned embodiment, more can do the change of suitably using on demand.For example, this first partition wall also can be arranged at other position of this partition wall, for example: the centre that is arranged at this partition wall; This partition wall with light-absorption layer can also be applied to the electric moistening display of total reflection or half-transparent half-reflection, and it is described to be not limited to above-mentioned embodiment; And can form the above-mentioned total reflection or the electric moistening display of half-transparent half-reflection by forming reflecting electrode, the material of this reflecting electrode is an aluminium.
Claims (10)
1. electric moistening display, it comprises that a substrate, is arranged at fluid and at least one partition wall that is arranged at this substrate of this substrate, it is characterized in that: each partition wall comprises can light-absorbing material.
2. electric moistening display as claimed in claim 1 is characterized in that: this light-absorbing material is carbon black or chromium.
3. electric moistening display as claimed in claim 1 is characterized in that: each partition wall also comprises a light-absorption layer, and this light-absorbing material is arranged at this light-absorption layer.
4. electric moistening display as claimed in claim 3 is characterized in that: this light-absorbing material is the tree resin layer of carbon-black doped or chromium-doped tree resin layer.
5. electric moistening display as claimed in claim 3 is characterized in that: contiguous this substrate of this light-absorption layer is provided with.
6. electric moistening display as claimed in claim 3 is characterized in that: each partition wall also comprises a photic zone, this photic zone and the stacked setting of this light-absorption layer and contiguous this substrate.
7. electric moistening display as claimed in claim 3 is characterized in that: each partition wall also comprises a photic zone, and this light-absorption layer is coated on this euphotic outside.
8. electric moistening display as claimed in claim 1 is characterized in that: this electric moistening display also comprises at least one electrode, and this electrode is arranged between this fluid and this substrate, and this electrode is a transparency electrode.
9. electric moistening display as claimed in claim 1 is characterized in that: this electric moistening display also comprises at least one electrode, and this electrode is arranged between this fluid and this substrate, and this electrode is a reflecting electrode.
10. electric moistening display, it comprises that a substrate, is arranged at fluid and at least one partition wall that is arranged at this substrate of this substrate, is characterized in that: this partition wall absorbs the light that shines this partition wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101242544A CN101424783B (en) | 2007-11-02 | 2007-11-02 | Electrowetting display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101242544A CN101424783B (en) | 2007-11-02 | 2007-11-02 | Electrowetting display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101424783A true CN101424783A (en) | 2009-05-06 |
| CN101424783B CN101424783B (en) | 2010-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101242544A Expired - Fee Related CN101424783B (en) | 2007-11-02 | 2007-11-02 | Electrowetting display |
Country Status (1)
| Country | Link |
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| CN (1) | CN101424783B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101750733B (en) * | 2008-12-16 | 2012-08-29 | 财团法人工业技术研究院 | Light valve unit, display device and forming method of light valve unit |
| CN106291914A (en) * | 2016-10-31 | 2017-01-04 | 京东方科技集团股份有限公司 | Display floater and driving method thereof and display device |
| CN107037581A (en) * | 2017-04-20 | 2017-08-11 | 华南师范大学 | A kind of electric moistening display part and preparation method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6967763B2 (en) * | 2003-03-11 | 2005-11-22 | Fuji Photo Film Co., Ltd. | Display device |
| US7529012B2 (en) * | 2003-05-22 | 2009-05-05 | Liquavista B.V. | Display device |
| US7420549B2 (en) * | 2003-10-08 | 2008-09-02 | E Ink Corporation | Electro-wetting displays |
| JP5392591B2 (en) * | 2003-10-08 | 2014-01-22 | リクアビスタ ビー ヴィ | Electrowetting display device |
| KR101129435B1 (en) * | 2005-06-15 | 2012-03-27 | 삼성전자주식회사 | Electrowetting display panel and manufacturing method thereof |
-
2007
- 2007-11-02 CN CN2007101242544A patent/CN101424783B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101750733B (en) * | 2008-12-16 | 2012-08-29 | 财团法人工业技术研究院 | Light valve unit, display device and forming method of light valve unit |
| CN106291914A (en) * | 2016-10-31 | 2017-01-04 | 京东方科技集团股份有限公司 | Display floater and driving method thereof and display device |
| CN106291914B (en) * | 2016-10-31 | 2018-04-03 | 京东方科技集团股份有限公司 | Display panel and its driving method and display device |
| US10613315B2 (en) | 2016-10-31 | 2020-04-07 | Boe Technology Group Co., Ltd. | Display panel, driving method thereof and display device |
| CN107037581A (en) * | 2017-04-20 | 2017-08-11 | 华南师范大学 | A kind of electric moistening display part and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101424783B (en) | 2010-09-29 |
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Granted publication date: 20100929 Termination date: 20201102 |