CN103941514B - A kind of electrophoretic display panel and its manufacture method, electrophoretic display apparatus - Google Patents
A kind of electrophoretic display panel and its manufacture method, electrophoretic display apparatus Download PDFInfo
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- CN103941514B CN103941514B CN201310699893.9A CN201310699893A CN103941514B CN 103941514 B CN103941514 B CN 103941514B CN 201310699893 A CN201310699893 A CN 201310699893A CN 103941514 B CN103941514 B CN 103941514B
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Abstract
The present invention relates to display technology field, more particularly to a kind of electrophoretic display panel and its manufacture method, and the electrophoretic display apparatus including the electrophoretic display panel.Electrophoretic display panel provided by the present invention is the improvement carried out to traditional microcapsules formula electrophoretic display panel, including substrate, drive electrode layer, microencapsulation material layer, common electrode layer and protection board；By setting first to be open in microencapsulation material layer, and traditional face whole on electrophoretic display panel is coated with the mode that the mode of Electrophoretic display material is changed to be not coated with Electrophoretic display material in the first opening, Electrophoretic display material required during production electrophoretic display panel is greatly reduced, production cost is reduced.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of electrophoretic display panel and its manufacture method, and including
The electrophoretic display apparatus of the electrophoretic display panel.
Background technology
Electrophoretic display panel can be divided into micro-cup formula electrophoretic display panel and microcapsules formula electrophoresis showed according to the difference of microcavity
Panel.Charged particle is packaged in microcavity by it, in the presence of extra electric field, the electrophoretic migration in the suspension containing dyestuff
Move to realize the display of pattern and word.For example, when top crown is positively charged, the white particle in microcavity is transported to bottom crown
It is dynamic so that black is presented in top crown；When top crown is negatively charged, the white particle in microcavity is moved to top crown so that on
White is presented in pole plate.Electrophoretic display panel combines the advantage of plain paper and electronic console, from numerous Display Techniques
Show one's talent.
However, the whole face of the use of existing microcapsules formula electrophoretic display panel is coated with the side of Electrophoretic display material
Formula, causes the non-display area on electrophoretic display panel to be also inevitably present display material by the way of whole face is coated with,
Cause the waste of display material.
In summary, there is the problem of wasting display material in existing Electrophoretic display panel.
The content of the invention
In view of this, the invention provides a kind of electrophoretic display panel, including：
Substrate；
Drive electrode layer, on the substrate, includes at least one driving electrodes；
Microencapsulation material layer, on the drive electrode layer, includes the outside the driving electrodes scope
One opening；
Common electrode layer, on microencapsulation material layer；
Protection board, on the common electrode layer.
Another object of the present invention, which is also resided in, provides a kind of such as the manufacture method of above-mentioned electrophoretic display panel, including following step
Suddenly：
A, one protection board of offer, form the common electrode layer on the protection board；
B, the microencapsulation material layer with the first opening is formed in the way of coating in the common electrode layer；
C, one substrate of offer, form the first conductive layer, pattern first conductive layer on the substrate, form described
Driving electrodes；
D, by the protection board it is opposed with the substrate encapsulation so that it is described first opening be located at the driving electrodes scope
Outside.
Another object of the present invention also resides in a kind of electrophoretic display apparatus of offer, including driving plate and housing, in addition to
Above-mentioned electrophoretic display panel；The driving plate is electrically connected with the electrophoretic display panel.
Electrophoretic display panel provided by the present invention is the improvement carried out to traditional microcapsules formula electrophoretic display panel,
Including substrate, drive electrode layer, microencapsulation material layer, common electrode layer and protection board；By being set in microencapsulation material layer
Put the first opening, and the mode that traditional face whole on electrophoretic display panel is coated with into Electrophoretic display material is changed to the
The mode of Electrophoretic display material is not coated with one opening, micro- glue required during production electrophoretic display panel is greatly reduced
Capsule electrophoretic display materials, reduce production cost.
Brief description of the drawings
Fig. 1 is the top view for the microencapsulation material layer that the embodiment of the present invention 1 is provided；
Fig. 2 is the cross-sectional structure figure for the electrophoretic display panel that the embodiment of the present invention 1 is provided；
Fig. 3 is the cross-sectional structure figure for the electrophoretic display panel that the embodiment of the present invention 2 is provided；
Fig. 4 is the top view for the drive electrode layer that the embodiment of the present invention 4 is provided；
Fig. 5 is the cross-sectional structure figure for the electrophoretic display panel that the embodiment of the present invention 5 is provided；
Fig. 6 is the flow chart of the manufacture method for the electrophoretic display panel that the embodiment of the present invention 7 is provided；
Fig. 7 is the flow chart of the manufacture method for the electrophoretic display panel that the embodiment of the present invention 8 is provided；
Fig. 8 is the structure chart for the electrophoretic display panel that the embodiment of the present invention 12 is provided.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The electrophoretic display panel that the embodiment of the present invention is provided is that traditional microcapsules formula electrophoretic display panel is carried out
Improvement, including substrate, drive electrode layer, microencapsulation material layer, common electrode layer and protection board；By in microencapsulation material
First is set to be open in layer, and the mode that traditional face whole on electrophoretic display panel is coated with into Electrophoretic display material changes
To be not coated with the mode of Electrophoretic display material in the first opening, solve existing Electrophoretic display panel and deposit
The problem of display material is wasted.
Embodiment 1
Fig. 1 is the top view for the microencapsulation material layer that the present embodiment is provided, by Section line AA ' cuttings this implementation in figure
The electrophoretic display panel that example is provided can obtain the cross-sectional structure figure of the electrophoretic display panel, i.e. Fig. 2, for the ease of saying
It is bright, part related to the present embodiment is illustrate only, details are as follows：
The electrophoretic display panel that the present embodiment is provided includes:Substrate 10, drive electrode layer 20, microencapsulation material layer 30,
Common electrode layer 40 and protection board 50.
Wherein drive electrode layer 20 is located on substrate 10, includes at least one driving electrodes 201；Microencapsulation material layer 30
On drive electrode layer 20, as shown in figure 1, comprising the first opening 302 outside the scope of driving electrodes 201 and at least
Two viewing areas 301.Wherein, viewing area 301 is microencapsulation material and the overlapping region of driving electrodes 201, only in display
Electrophoretic display material is set in region 301, and is equipped with driving electrodes 201, is not provided with the first opening 302
Electrophoretic display material.
Further, the first opening 302 can cover all regions outside driving electrodes 201.
In the present embodiment, each driving electrodes 201 can correspond at least one viewing area 301.When a driving
When correspondence multiple viewing area 301 of electrode 201, it is possible to achieve micro- glue in single signal control many places viewing area 301
The effect of capsule electrophoretic display materials.
Further, common electrode layer 40 is located on microencapsulation material layer 30；Protection board 50 is located at common electrode layer 40
On.
In the present embodiment, common electrode layer 40 is reference potential, as long as applying level to each driving electrodes 201
Size is higher or lower than the level signal of the reference potential, it is possible to change common electrode layer 40 and corresponding driving electrodes 201
Between direction of an electric field, so as to realize the movement of the charged particle in microcapsules.
Further, the material of common electrode layer 40 can be indium tin oxide transparent conductive semiconductor film.Protection board 50
Material can use high polymer, such as polyethylene terephthalate.
Further, electrophoretic display panel can also include anti-dazzle photosphere, waterproof ventilative layer and cured film, and successively
On protection board 50.Wherein anti-dazzle photosphere can reduce the reflective interference of environment, improve display picture visible angle and
Brightness, reduces screen reflecting.Waterproof ventilative layer can do further protection with cured film to electrophoretic display panel.
In the present embodiment, when actual production, can using anti-dazzle photosphere, waterproof ventilative layer and cured film as
One piece of second protection board 50, and be pasted on transparent optical cement on protection board 50.
Further, can be on microencapsulation material layer 30 except many in order that the structure of electrophoretic display panel is more stablized
Region outside individual viewing area 301 sets insulating materials, to fill the space between common electrode layer 40 and substrate 10.
In the present embodiment, due to by the way of the coating Electrophoretic display material only in the viewing area 301, greatly
It is big to reduce Electrophoretic display material required during production electrophoretic display panel, reduce production cost.Simultaneously as
In the absence of the routing region of driving electrodes 201 on Electrophoretic display material, i.e. electrophoretic display panel in first opening 302
In the absence of Electrophoretic display material, it is to avoid the current potential shadow of the electrode routing region occurred in traditional electrophoretic display panel
The problem of ringing the dispaly state in the region, substantially improves the overall display effect of electrophoretic display panel.
Embodiment 2
The implementation of the present embodiment is set up on the basis of embodiment 1.
Fig. 3 is the top view for the electrophoretic display panel that the present embodiment is provided, by Section line BB ' cuttings this implementation in figure
The electrophoretic display panel that example is provided can obtain the cross-sectional structure figure of the electrophoretic display panel, i.e. Fig. 4, for the ease of saying
It is bright, part related to the present embodiment is illustrate only, details are as follows：
In the present embodiment, microencapsulation material layer 30 also includes being located at the second opening 303 in the range of driving electrodes 201.
In the present embodiment, can also according to user's needs, in the case of with multiple viewing areas 301, by
Second opening 303 is set in microencapsulation material layer 30 in the range of driving electrodes 201, the area of viewing area 301 is less than institute
The area of corresponding driving electrodes 201, further adjusts pattern content to display.
Further, the first opening 302 can cover all regions outside driving electrodes 201.
In the present embodiment, due to just having microcapsules with multiple viewing areas 301, and only in viewing area 301
Electrophoretic display materials, it is possible to by changing the shape of viewing area 301, are directly determined to be shown by viewing area 301
Pattern.Just because of this, the shape of the driving electrodes 201 in drive electrode layer 20 is unrestricted, as long as viewing area can be covered
The scope that the edge in domain 301 is defined, makes the Electrophoretic display material in whole viewing area 301 all in driving electricity
In electric field between pole 201 and common electrode layer 40, it is ensured that each viewing area 301 can normally be shown.
Embodiment 3
The implementation of the present embodiment is set up on the basis of above-described embodiment.
In this example it is shown that the quantity in region 301 is equal with the quantity of driving electrodes 201, and viewing area 301 with
Driving electrodes 201, which are corresponded, to be set.
In the range of edge of the viewing area 301 in corresponding driving electrodes 201 is defined；Viewing area 301
Area is equal to the area of corresponding driving electrodes 201.
Further, the shape of driving electrodes 201 can be identical with the shape of the viewing area 301 corresponding to it.It will drive
The shape of moving electrode 201, the shape of area and the viewing area 301 corresponding to it, area are further unified, and can save driving
The material cost of electrode 201.
Embodiment 4
The implementation of the present embodiment is set up on the basis of above-described embodiment.
In the present embodiment, as shown in figure 3, drive electrode layer 20 also includes the lead 202 electrically connected with driving electrodes, the
One 302 lead scopes at least described in covering part of opening.Show that driving panel can be that is, passive by the way of passive type is shown
Driving.Drive electrophoretic display panel, passive drive refer to dot matrix drive, by common electrode layer 40, multiple driving electrodes 201 and
Lead 202 is constituted, and its is simple in construction, and cost is low.
Embodiment 5
The implementation of the present embodiment is set up on the basis of embodiment 1 to 3.
In the present embodiment, as shown in figure 5, electrophoretic display panel also includes thin film transistor array layer 60, film crystal
Pipe array layer 60 is located between substrate 10 and drive electrode layer 20；
Thin film transistor array layer 60 includes multiple thin film transistor (TFT)s（Not shown in figure）, thin film transistor (TFT) and driving electrodes
201 electrical connections.
In the present embodiment, electrophoretic display panel can be worked by the way of active matrix driving.Active matrix driving refers to every
Increase active component in individual driving electrodes 201, its technology is more complicated, cost is high, but driving voltage is low, low in energy consumption, it is adaptable to high
Clear and large scale is shown.
Embodiment 6
The implementation of the present embodiment is set up on the basis of above-described embodiment.
In the present embodiment, substrate 10 can be transparent substrate.
By the electrophoretic display panel that the present embodiment is provided only is coated with Electrophoretic display material in viewing area 301
Material, its local no material block light outside viewing area 301 passes through, and further causes this using transparent substrate 10
A little places are fully transparent.It is thus possible to which the electrophoretic display panel that the present embodiment is provided is combined with any background, such as in substrate
10 one sides away from driving electrodes 201 are provided with the background layer of pattern, or electrophoretic display panel is directly placed in into other
On object, so as to further improve the display effect of electrophoretic display panel.
Embodiment 7
The implementation of the present embodiment is set up on the basis of the various embodiments described above.
Fig. 6 shows the flow chart of the manufacture method for the electrophoretic display panel that the present embodiment is provided, for convenience of description,
Part related to the present embodiment is illustrate only, details are as follows：
The purpose of the present embodiment is the manufacture method for providing the electrophoretic display panel in a kind of above-described embodiment, the manufacture
Method comprises the following steps：
S10, one protection board 50 of offer, form common electrode layer 40 on protection board 50；
S20, the microencapsulation material layer 30 with the first opening 302 is formed in the way of coating in common electrode layer 40；
S30, one substrate 10 of offer, form the first conductive layer, pattern the first conductive layer on the substrate 10, form driving electricity
Pole 201；
S40, by protection board 50 it is opposed with substrate 10 encapsulation so that first opening 302 be located at the scope of driving electrodes 201 it
Outside.In the present embodiment, can be by the sealing opposed with substrate 10 of protection board 50, it is to avoid dust enters the interior of electrophoretic display panel
Portion, influence display effect or damage electrophoretic display panel.Specifically, should be using drive electrode layer 20 and microencapsulation material 30 phase of layer
To mode, drive electrode layer 20 directly 30 can contact connection with microencapsulation material layer, can also keep certain space,
Want the intensity for the electromagnetic field that the distance between drive electrode layer 20 and common electrode layer 40 be enough to ensure that produced by both.
In the present embodiment, common electrode layer 40 can be formed using by the way of the surface coating of protection board 50, the technology
Belong to prior art.And form driving electrodes 201 on the substrate 10 and connect drive electrode layer 20 and microencapsulation material layer 30
These techniques connect also belong to the manufacturing process of traditional electrophoretic display panel, will not be repeated here.Wherein, drive electrode layer
20 can also take the mode for pasting sheet metal on the substrate 10 to set multiple driving electrodes 201, so as to form driving electrodes
Layer 20.
Embodiment 8
The implementation of the present embodiment is set up on the basis of embodiment 7.
In the present embodiment, due to the order of the operation on substrate and operation on protection board be not it is unique,
Can also will be preposition by step S30, it is and step S10 and step S20 is rearmounted.As shown in fig. 7,
S10a, one substrate 10 of offer, form the first conductive layer, pattern the first conductive layer, form driving on the substrate 10
Electrode 201；
S20a, one protection board 50 of offer, form common electrode layer 40 on protection board 50；
S30a, the microencapsulation material layer 30 with the first opening 302 is formed in the way of coating in common electrode layer 40；
S40a, by protection board 50 it is opposed with substrate 10 encapsulation so that first opening 302 be located at the scope of driving electrodes 201 it
Outside.
Embodiment 9
The implementation of the present embodiment is set up on the basis of embodiment 7 and 8.
In the present embodiment, step S20 is specially：Selected in common electrode layer 40 in the way of silk-screen printing or spraying
Property be coated with Electrophoretic display material so that formed with first opening 302 microencapsulation material layer 30.
By in the coating of Electrophoretic display material and common electrode layer 40 by the way of silk-screen printing so that formed
Viewing area 301 it is identical with the pattern on the silk screen, and with one-shot forming the characteristics of, it is convenient and swift.It therefore, it can only
It is equipped with a small amount of silk screen and realizes the production in enormous quantities of electrophoretic display panel.
Embodiment 10
The implementation of the present embodiment is set up on the basis of embodiment 7 and 8.
In the present embodiment, due to can be according to user's needs, the microencapsulation material layer 30 in the range of driving electrodes 201
It is interior that second opening 303 is set, further adjust pattern content to display.
Therefore, step S20 or S30a are specifically as follows：
The microcapsules with the first opening 302 and the second opening 303 are formed in the way of coating in common electrode layer 40
Material layer 30.
Embodiment 11
The implementation of the present embodiment is set up on the basis of embodiment 7 to 10.
In the present embodiment, step S30 or S10a are specifically as follows：
One substrate 10 is provided, thin film transistor array layer 60 is sequentially formed from the bottom to top on the substrate 10 and described first leads
Electric layer, patterns the first conductive layer, forms driving electrodes 201.
In the present embodiment, the specific method for forming thin film transistor array layer 60 belongs to the common knowledge of this area,
This is repeated no more.Due to being provided with thin film transistor array layer 60 so that the electrophoretic display panel of the present embodiment can be with outside control
Circuit processed connection, and drive by the way of active matrix driving electrophoretic display panel.
Embodiment 12
The implementation of the present embodiment is set up on the basis of the various embodiments described above.
The purpose of the present embodiment is to provide a kind of electrophoretic display apparatus, including driving plate 70 and housing, in addition to upper
The electrophoretic display panel stated.Wherein, as shown in figure 8, driving plate 70 is electrically connected with electrophoretic display panel.
Specifically, the earth terminal connection common electrode layer 40 of driving plate 70.Driving plate 70 has quantity and driving electrodes 201
The equal signal end of quantity, each signal end in signal end connects each driving electrodes 201 correspondingly.Its
In, signal end connects each driving electrodes 201 by lead 202.
The electrophoretic display apparatus can as electronic tag etc device display screen, the life of electronic tag can be significantly reduced
Produce cost.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (9)
1. a kind of electrophoretic display panel, it is characterised in that the electrophoretic display panel includes:
Substrate；
Drive electrode layer, on the substrate, includes at least one driving electrodes；
Microencapsulation material layer, on the drive electrode layer, is opened comprising first outside the driving electrodes scope
Mouthful；The microencapsulation material layer also includes being located at the second opening in the range of the driving electrodes, makes the area of viewing area small
In the area of corresponding driving electrodes；
Common electrode layer, on microencapsulation material layer；
Protection board, on the common electrode layer.
2. electrophoretic display panel as claimed in claim 1, it is characterised in that described at least one described drive of first opening covering
All regions outside moving electrode.
3. electrophoretic display panel as claimed in claim 1, it is characterised in that the electrophoretic display panel is that passive type is shown,
Also include the lead electrically connected with the driving electrodes, first opening lead scope at least described in covering part.
4. electrophoretic display panel as claimed in claim 1, it is characterised in that the electrophoretic display panel also includes film crystal
Pipe array layer, the thin film transistor array layer is located between the substrate and the drive electrode layer；
The thin film transistor array layer includes multiple thin film transistor (TFT)s, and the thin film transistor (TFT) is electrically connected with the driving electrodes
Connect.
5. a kind of manufacture method of electrophoretic display panel, it is characterised in that the manufacture method comprises the following steps：
A, one protection board of offer, common electrode layer is formed on the protection board；
B, the microencapsulation material layer with the first opening is formed in the way of coating in the common electrode layer；
C, one substrate of offer, form the first conductive layer, pattern first conductive layer on the substrate, form driving electricity
Pole；
D, by the protection board it is opposed with the substrate encapsulation so that it is described first opening be located at the driving electrodes scope it
Outside.
6. manufacture method as claimed in claim 5, it is characterised in that the step B is specially：
The Electrophoretic display material is optionally coated with the way of silk-screen printing or spraying in the common electrode layer
Material, so as to form the microencapsulation material layer with the described first opening.
7. manufacture method as claimed in claim 5, it is characterised in that the step B also includes：In the common electrode layer
The microencapsulation material layer with the described first opening and the second opening is formed in the way of coating.
8. manufacture method as claimed in claim 5, it is characterised in that the step C also includes：
One substrate is provided, thin film transistor array layer and first conductive layer is sequentially formed from the bottom to top on the substrate,
First conductive layer is patterned, the driving electrodes are formed.
9. a kind of electrophoretic display apparatus, including driving plate and housing, it is characterised in that the electrophoretic display apparatus is also included such as
Electrophoretic display panel described in any one of Claims 1-4；The driving plate is electrically connected with the electrophoretic display panel.
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| CN201310699893.9A CN103941514B (en) | 2013-12-18 | 2013-12-18 | A kind of electrophoretic display panel and its manufacture method, electrophoretic display apparatus |
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| CN103941514B true CN103941514B (en) | 2017-08-04 |
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| 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 |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101097391A (en) * | 2002-03-14 | 2008-01-02 | 株式会社半导体能源研究所 | Display device and method of fabricating the same |
| CN101750832A (en) * | 2008-12-08 | 2010-06-23 | 元太科技工业股份有限公司 | Electrophoresis display and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2007002452A2 (en) * | 2005-06-23 | 2007-01-04 | E Ink Corporation | Edge seals and processes for electro-optic displays |
| JP2007127763A (en) * | 2005-11-02 | 2007-05-24 | Seiko Epson Corp | Electrophoretic display device |
| US8330712B2 (en) * | 2008-12-22 | 2012-12-11 | Lg Display Co., Ltd. | Electrophoretic display device including buffer pattern in non-display region |
| TWI407227B (en) * | 2009-10-01 | 2013-09-01 | Au Optronics Corp | Flat panel display with circuit protection structure |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101097391A (en) * | 2002-03-14 | 2008-01-02 | 株式会社半导体能源研究所 | Display device and method of fabricating the same |
| CN101750832A (en) * | 2008-12-08 | 2010-06-23 | 元太科技工业股份有限公司 | Electrophoresis display and manufacturing method thereof |
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