CN102929067A - Electrophoretic display device - Google Patents
Electrophoretic display device Download PDFInfo
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- CN102929067A CN102929067A CN2012104890817A CN201210489081A CN102929067A CN 102929067 A CN102929067 A CN 102929067A CN 2012104890817 A CN2012104890817 A CN 2012104890817A CN 201210489081 A CN201210489081 A CN 201210489081A CN 102929067 A CN102929067 A CN 102929067A
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Abstract
The invention relates to an electrophoretic display device comprising a first base plate, a second base plate, an electrophoretic medium located between the first base plate and the second base plate, and a correction electrode, wherein the first base plate and the second base plate are oppositely arranged at intervals; a public electrode is formed at the inner side of the first base plate; an insulating layer is formed at the inner side of the second base plate; a pixel electrode and a wiring electrode are formed at the inner side of the insulating layer; and the correction electrode is formed on the second base plate and arranged in a manner of corresponding to the position of the wiring electrode. According to the invention, the electrophoretic medium at the position of the wiring electrode is driven to ensure that the position of the wiring electrode shows same color as the circumference thereof, so that the wiring showing problem is effectively avoided.
Description
Technical field
The present invention relates to the display technique field, relate in particular to a kind of electrophoretic display apparatus.
Background technology
Electrophoresis showed (Electrophoretic Displays, EPD) research and development of technology, so far passed by more than 30 days, now along with the development of material science, polymer science, electronics science, so that material and the technology of preparation electrophoresis showed have had important breakthrough, electrophoresis showed becomes one of the most potential flat panel display.
Electrophoresis showed is to utilize principle of electrophoresis to make to be clipped in interelectrode charge species to move under the effect of electric field, and two or more different colours of motion Alternation Display by charge species, the advantage that it combines plain paper and electronic console has the characteristics such as low, the good daylight of energy consumption is readable, shape is flexible, technique is simple.Existing electrophoretic display apparatus is by two substrate clamping electrophoresis particles, wherein form public electrode on the substrate, form some pixel electrodes and electrical traces on another substrate, be connected with control circuit etc. by electrical traces, described electrophoresis particle has different colours and polarity is different, between public electrode and pixel electrode, apply the distribution that electric field can change electrophoresis particle, demonstrate corresponding image.
Yet above-mentioned electrophoretic display apparatus exists cabling to show problem, that is to say in the cabling zone to show the color different from peripheral background, affects display effect.
Summary of the invention
In view of this, provide a kind of electrophoretic display apparatus that can effectively avoid cabling to show.
A kind of electrophoretic display apparatus, comprise first substrate that relative spacing arranges, and second substrate, the electrophoretic medium between first substrate and second substrate and correcting electrode, the inboard of described first substrate is formed with public electrode, the inboard of described second substrate is formed with insulation course, described insulation course inboard is formed with pixel electrode and walks line electrode, described correcting electrode is formed on the second substrate and the setting of corresponding cabling electrode position, thereby the electrophoretic medium that drives cabling electrode position place shows and color same around it cabling electrode position.
Further, described correcting electrode is between second substrate and insulation course.
Further, described correcting electrode is positioned at the outside of second substrate.
Further, described correcting electrode is tin indium oxide or metal.
Further, described first substrate is transparency carrier.
Further, described first substrate is glass substrate or plastic base.
Further, described first substrate is flexible base plate.
Further, described second substrate is glass substrate or plastic base.
Further, described second substrate is flexible base plate.
Further, described public electrode is the tin indium oxide.
Prior art is compared, and electrophoretic display apparatus of the present invention is by increasing correcting electrode, and the electrophoresis particle that drives cabling electrode position place moves, and makes cabling electrode position place show the color same with background on every side, effectively avoids cabling to show problem.
Description of drawings
Fig. 1 is that electrophoretic display apparatus of the present invention shows the view when black graphics is not corrected.
Fig. 2 is the drive waveforms figure of state shown in Figure 1.
Fig. 3 is that electrophoretic display apparatus of the present invention shows the view after black graphics is corrected.
Fig. 4 is the drive waveforms figure of state shown in Figure 3.
Fig. 5 is the view of electrophoretic display apparatus display white figure of the present invention when not being corrected.
Fig. 6 is the drive waveforms figure of state shown in Figure 5.
Fig. 7 is the view after electrophoretic display apparatus display white figure of the present invention is corrected.
Fig. 8 is the drive waveforms figure of state shown in Figure 7.
The main element symbol description.
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Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
Please refer to Fig. 1, the present invention relates to electrophoretic display apparatus 100 and comprises first substrate 10, second substrate 30, electrophoretic medium 50 and correcting electrode 70.
Described first substrate 10 is transparent configuration, can have light transmission and flexual substrate for insulativity synthetic resin etc., such as PET film etc., also can be hard substrate, such as glass substrate, plastic base etc.The inside surface of described first substrate 10 is formed with public electrode 20, and described public electrode 20 is preferably transparent tin indium oxide (ITO).
Described second substrate 30 and first substrate 10 relative spacing settings similarly, can be the formed flexible base plate of resin, also can be the hard substrate that glass, plastics etc. form.The inboard of described second substrate 30 is formed with insulation course 80, is formed with pixel electrode 40 on the inside surface of described insulation course 80 and walks line electrode 60, and described pixel electrode 40 is array-like arranges, and is used for driving electrophoretic medium 50 and forms image.
In the present embodiment, described correcting electrode 70 is formed between described insulation course 80 and the second substrate 30, and arrange corresponding to walking line electrode 60 positions, the electrophoretic medium 50. described correcting electrodes 70 of be used for to drive walking line electrode 60 positions can be that ITO also can be metal electrode, by described insulation course 80 with pixel electrode 40 and walk line electrode 60 isolation.In other embodiments, described correcting electrode also can be formed on the lateral surface of second substrate 30.
Described electrophoretic medium 50 is between first substrate 10 and insulation course 80, comprise some electrophoresis particles, described electrophoresis particle has different colours, the band point particle of different colours is with different electric charges, under the effect of electric field charged particle towards with its electrically charged opposite electrode (public electrode 20 or pixel electrode 40) mobile, thereby show corresponding pattern in first substrate 10 positions.To explain as an example of black, white dichromatism electrophoresis particle example in the present embodiment, the color of the content that the color of certain electrophoresis particle can show as required requires and designs, and is not limited to black, the white dichromatism of present embodiment.
Electrophoretic display apparatus of the present invention can change the movement of walking line electrode 60 position electrophoresis particles by added electric field between public electrode 20 and correcting electrode 70, thus the problem of effectively avoiding cabling to show, and the below is described in detail.
Please consult simultaneously Fig. 2, when needs show black graphics, public electrode 20 ground connection, pixel electrode 40 is high pressure with walking line electrode 60, this moment, black electrophoretic particles moved towards first substrate 10, white electrophoretic particles moves towards insulation course 80, like this first basic 10 all presents black corresponding to pixel electrode 40 and the zone of walking line electrode 60, but the background of walking this moment around the line electrode 60 is white, thereby it is shown to walk line electrode 60, so namely need to proofread and correct by correcting electrode 70, line electrode 60 places are shown with background color is consistent on every side, see also Fig. 3 and Fig. 4, this moment, public electrode 20 connect high pressure, correcting electrode 70 ground connection, the black electrophoretic particles that correspondence like this is walked line electrode 60 positions moves towards insulation course 80, and white electrophoretic particles moves towards first substrate 10, makes away line electrode 60 corresponding regions be shown as white, with background color is consistent, avoid away line electrode 60 shown on every side.
Please consult simultaneously Fig. 5 and Fig. 6, when the display white figure, public electrode 20 connects high pressure, pixel electrode 40 with walk line electrode 60 ground connection, this moment, white electrophoretic particles moved towards first substrate 10, and black electrophoretic particles moves towards insulation course 80, and so first substrate 10 all presents white corresponding to pixel electrode 40 and the zone of walking line electrode 60, but the background that walk around the line electrode 60 this moment is black, thereby it is shown to walk line electrode 60.This moment is with public electrode 20 ground connection, correcting electrode 70 connects high pressure, see also Fig. 7 and Fig. 8, the white electrophoretic particles that correspondence like this is walked line electrode 60 positions moves towards insulation course 80, black electrophoretic particles moves towards first substrate 10, make away line electrode 60 corresponding regions be shown as black, with background color is consistent, avoid away line electrode 60 shown on every side.
Claims (10)
1. electrophoretic display apparatus, comprise the first substrate that relative spacing arranges, and second substrate, and the electrophoretic medium between first substrate and second substrate, the inboard of described first substrate is formed with public electrode, the inboard of described second substrate is formed with insulation course, described insulation course inboard is formed with pixel electrode and walks line electrode, it is characterized in that: also comprise the correcting electrode that is formed on the second substrate, the corresponding cabling electrode position of described correcting electrode arranges, thereby the electrophoretic medium that drives cabling electrode position place shows and color same around it cabling electrode position.
2. electrophoretic display apparatus as claimed in claim 1, it is characterized in that: described correcting electrode is between second substrate and insulation course.
3. electrophoretic display apparatus as claimed in claim 1, it is characterized in that: described correcting electrode is positioned at the outside of second substrate.
4. electrophoretic display apparatus as claimed in claim 1, it is characterized in that: described correcting electrode is tin indium oxide or metal.
5. electrophoretic display apparatus as claimed in claim 1, it is characterized in that: described first substrate is transparency carrier.
6. electrophoretic display apparatus as claimed in claim 5, it is characterized in that: described first substrate is glass substrate or plastic base.
7. electrophoretic display apparatus as claimed in claim 5, it is characterized in that: described first substrate is flexible base plate.
8. electrophoretic display apparatus as claimed in claim 1, it is characterized in that: described second substrate is glass substrate or plastic base.
9. electrophoretic display apparatus as claimed in claim 1, it is characterized in that: described second substrate is flexible base plate.
10. electrophoretic display apparatus as claimed in claim 1, it is characterized in that: described public electrode is the tin indium oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210489081.7A CN102929067B (en) | 2012-11-27 | 2012-11-27 | Electrophoretic display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210489081.7A CN102929067B (en) | 2012-11-27 | 2012-11-27 | Electrophoretic display device |
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| Publication Number | Publication Date |
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| CN102929067A true CN102929067A (en) | 2013-02-13 |
| CN102929067B CN102929067B (en) | 2015-05-13 |
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| CN201210489081.7A Active CN102929067B (en) | 2012-11-27 | 2012-11-27 | Electrophoretic display device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109031847A (en) * | 2018-09-07 | 2018-12-18 | 信利半导体有限公司 | Electronic paper display panel and preparation method thereof, driving method, electronic equipment |
| CN109164661A (en) * | 2018-09-07 | 2019-01-08 | 信利半导体有限公司 | Electronic paper display panel and preparation method thereof, electronic equipment |
| CN109270750A (en) * | 2018-10-22 | 2019-01-25 | 信利半导体有限公司 | Segmentation bistable LCD and its driving method |
| CN110231893A (en) * | 2018-03-05 | 2019-09-13 | 广州视源电子科技股份有限公司 | Display methods and equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01136130A (en) * | 1987-11-24 | 1989-05-29 | Kinseki Ltd | Electrophoretic display device |
| CN1402203A (en) * | 2001-08-20 | 2003-03-12 | 精工爱普生株式会社 | Electrophoresis device, electrophoresis device driving method and circuit, and electronic apparatus |
| CN101198900A (en) * | 2005-06-17 | 2008-06-11 | 皇家飞利浦电子股份有限公司 | Bistable display devices |
| US20080309613A1 (en) * | 2007-06-15 | 2008-12-18 | Samsung Electronics Co., Ltd. | Electrophoretic display and method for manufacturing thereof |
-
2012
- 2012-11-27 CN CN201210489081.7A patent/CN102929067B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01136130A (en) * | 1987-11-24 | 1989-05-29 | Kinseki Ltd | Electrophoretic display device |
| CN1402203A (en) * | 2001-08-20 | 2003-03-12 | 精工爱普生株式会社 | Electrophoresis device, electrophoresis device driving method and circuit, and electronic apparatus |
| CN101198900A (en) * | 2005-06-17 | 2008-06-11 | 皇家飞利浦电子股份有限公司 | Bistable display devices |
| US20080309613A1 (en) * | 2007-06-15 | 2008-12-18 | Samsung Electronics Co., Ltd. | Electrophoretic display and method for manufacturing thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110231893A (en) * | 2018-03-05 | 2019-09-13 | 广州视源电子科技股份有限公司 | Display methods and equipment |
| CN109031847A (en) * | 2018-09-07 | 2018-12-18 | 信利半导体有限公司 | Electronic paper display panel and preparation method thereof, driving method, electronic equipment |
| CN109164661A (en) * | 2018-09-07 | 2019-01-08 | 信利半导体有限公司 | Electronic paper display panel and preparation method thereof, electronic equipment |
| CN109270750A (en) * | 2018-10-22 | 2019-01-25 | 信利半导体有限公司 | Segmentation bistable LCD and its driving method |
| CN109270750B (en) * | 2018-10-22 | 2021-08-27 | 信利半导体有限公司 | Pen-segment type bistable liquid crystal display screen and driving method thereof |
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| Publication number | Publication date |
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| CN102929067B (en) | 2015-05-13 |
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Effective date of registration: 20230817 Address after: 3rd Floor, Building B1, Wanjiang Fortune Plaza, No. 88 Ruixiang Road, Guandou Street, Jiujiang District, Wuhu City, Anhui Province 241060 Patentee after: Wuhu Tianma Automotive Electronics Co.,Ltd. Address before: 518000 Baolong Industrial City, Longgang District, Shenzhen, Guangdong Province Patentee before: Tianma Micro-Electronics Co.,Ltd. |
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