CN206096717U - Electrophoresis display - Google Patents
Electrophoresis display Download PDFInfo
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- CN206096717U CN206096717U CN201621027055.2U CN201621027055U CN206096717U CN 206096717 U CN206096717 U CN 206096717U CN 201621027055 U CN201621027055 U CN 201621027055U CN 206096717 U CN206096717 U CN 206096717U
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- electrophoretic display
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- conductive electrode
- upper panel
- epd
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Abstract
The utility model relates to an electrophoresis display and manufacturing method. This electrophoresis display includes transparent preceding cover plate, the adhesion layer, the electrophoretic display layer, back conductive electrode glues with sealed, cover plate before transparent, the adhesion layer, electrophoretic display layer and back conductive electrode stack gradually the connection in to by outer, the adhesion layer, electrophoretic display layer and back conductive electrode's width is lighter than the width of transparent preceding cover plate, the internal surface of transparent preceding cover plate is at the adhesion layer, electrophoretic display layer and back conductive electrode form and the sealed bonding area who is connected that glues on every side, be formed with the display circuit before transparent on the cover plate, the adhesion layer is transparent and electrically conductive, the electrophoretic display layer includes the little unit of a plurality of demonstrations, transparent preceding cover plate passes through the circuit with back conductive electrode and is connected with the controller, the bonding area of the internal surface of cover plate is connected before sealed gluey and transparent, and the cladding is at the adhesion layer, electrophoretic display layer and back conductive electrode's outside, with the adhesion layer, the electrophoretic display layer is sealed with back conductive electrode. This electrophoresis display's structure is comparatively simple.
Description
Technical field
The utility model is related to display device field, more particularly to a kind of electrophoretic display device (EPD).
Background technology
Electrophoretic display device (EPD) is a kind of equally thin, the soft and erasable display of sensitive paper, in recent years in billboard and price
Increasingly it is widely applied on board.Fig. 6 is refer to, existing electrophoretic display device (EPD) generally comprises driving backboard 31, adhesion layer
32nd, electrophoretic display layer 33, rear conductive electrode 34 and fluid sealant 35, because rear conductive electrode 34 is typically difficult to higher
Intensity, therefore protection board 37 is typically there is provision of outside rear conductive electrode 34, to prevent electrophoretic display device (EPD) from damaging, drive backboard 31
On be provided with display circuit, fluid sealant 35 is filled in protection board 37 and drives between backboard 31.The electrophoretic display device (EPD) of this structure,
Structure and manufacturing process are all more complicated.And, header board (i.e. protection board 37) is general narrower than back plate (driving backboard 31), is installing
During on the products such as electronic reader, in order that the edge of electronic reader is flushed, in addition it is also necessary to arrange wider at the edge of header board
Frame, make the products such as electronic reader seem not attractive in appearance enough.
The content of the invention
Based on the deficiencies in the prior art, the utility model technical issues that need to address are to provide a kind of electricity of simple structure
Phoretic display.
On the one hand the utility model embodiment provides a kind of electrophoretic display device (EPD), and it includes transparent shroud upper panel, adhesion layer, electrophoresis
Display layer, rear conductive electrode and fluid sealant, the transparent shroud upper panel, adhesion layer, electrophoretic display layer and rear conductive electrode are by outward extremely
Connection is inside stacked gradually, the width of the adhesion layer, electrophoretic display layer and rear conductive electrode is less than the width of the transparent shroud upper panel
Degree, the inner surface of the transparent shroud upper panel is formed and the sealing around adhesion layer, electrophoretic display layer and rear conductive electrode
The adhesion zone of gemel connection, is formed with the display for driving electrophoretic display layer display content on the inner surface of the transparent shroud upper panel
Circuit, the adhesion layer transparent and electrically conductive, the electrophoretic display layer includes multiple display micro units, and each shows that micro unit includes
Electrophoresis liquid and the electrophoresis particle being suspended in electrophoresis liquid, the transparent shroud upper panel and the rear conductive electrode are by circuit and control
Device connects, in the two ends applied voltage signal of the electrophoretic display layer, in the fluid sealant and the transparent shroud upper panel
The adhesion zone connection on surface, and the outside of the adhesion layer, electrophoretic display layer and rear conductive electrode is coated on, by the adhesion
The sealing of layer, electrophoretic display layer and rear conductive electrode.
Preferably, the electrophoretic display device (EPD) also includes base plate, and the base plate connects the inner side of conductive electrode in the rear, institute
State fluid sealant to be filled between the base plate and the transparent shroud upper panel.
Preferably, the width of the base plate is more than the width of the adhesion layer, electrophoretic display layer and rear conductive electrode, described
The width of base plate less than the width of the transparent shroud upper panel, divide by the both sides of the adhesion layer, electrophoretic display layer and rear conductive electrode
The hemi-closure space not being formed between the transparent shroud upper panel and base plate, the fluid sealant fills the semiclosed sky
Between.
Preferably, the electrophoretic display device (EPD) also includes waterproof membrane, and the waterproof membrane is coated on the outside of the fluid sealant.
Preferably, waterproof material is included in the fluid sealant.
Preferably, the fluid sealant is epoxy resin or silica gel material.
Preferably, the transparent shroud upper panel is glass, polyethylene terephthalate, polyethylene, polymethylacrylic acid
Methyl esters or Merlon.
Preferably, the fluid sealant is thermoplastic.
Preferably, the fluid sealant coat the inner surface and the adhesion layer of the rear conductive electrode, electrophoretic display layer and
The side surface of conductive electrode afterwards.
Preferably, the rear conductive electrode includes graphene film or fine and close aluminium foil.
On the other hand the utility model embodiment provides a kind of manufacture method of electrophoretic display device (EPD), and it comprises the steps：
In the outside coating electronic ink of rear conductive electrode, the electric ink is dried, form electrophoretic display layer；
Display circuit is formed in the inner side of transparent shroud upper panel, the width of the transparent shroud upper panel is more than the electrophoretic display layer
With the width of rear conductive electrode；
In the electrophoretic display layer outer application adhesion layer, and it is laminated to the transparent shroud upper panel inner side；
In the rear the outside applying paste of conductive electrode, electrophoretic display layer and adhesion layer, makes the fluid sealant and institute
The inner surface for stating transparent shroud upper panel connects, and is coated on the outside of the adhesion layer, electrophoretic display layer and rear conductive electrode, with close
Seal the adhesion layer, electrophoretic display layer and rear conductive electrode.
Preferably, the manufacture method of the electrophoretic display device (EPD) also comprises the steps：After the fluid sealant is coated with,
The outside cladding waterproof membrane of the fluid sealant, or before the fluid sealant is coated with, waterproof material is added in the fluid sealant
Material.
Compared with prior art, the utility model embodiment arranges display circuit, and transparent front shroud on transparent shroud upper panel
The width of plate is more than the width of adhesion layer, electrophoretic display layer and rear conductive electrode, therefore transparent shroud upper panel both serves display electricity
The effect on road, and when being installed on the products such as electronic reader as header board, it is not necessary at its edge, wider frame is set,
The structure and manufacturing process of electrophoretic display device (EPD) are simplified, and causes the products such as electronic reader to seem better appearance.
Describe the utility model in detail below in conjunction with the accompanying drawings, its as this specification a part, for embodiment
Bright principle of the present utility model, other aspect, feature and its advantages of the present utility model will become one by the detailed description
Mesh is clear.
Description of the drawings
The structural representation of the electrophoretic display device (EPD) that Fig. 1 is provided for the utility model first embodiment.
The structural representation of the electrophoretic display device (EPD) that Fig. 2 is provided for the utility model second embodiment.
The structural representation of the electrophoretic display device (EPD) that Fig. 3 is provided for the utility model 3rd embodiment.
The structural representation of the electrophoretic display device (EPD) that Fig. 4 is provided for the utility model fourth embodiment.
The structural representation of the electrophoretic display device (EPD) that Fig. 5 is provided for the embodiment of the utility model the 5th.
Fig. 6 is the structural representation of electrophoretic display device (EPD) of the prior art.
Specific embodiment
In order that utility model purpose of the present utility model, technical scheme and its technique effect become apparent from, below in conjunction with
The drawings and specific embodiments are described in detail to the utility model.It should be appreciated that concrete described in this specification
Embodiment is not intended to limit the utility model just for the sake of explaining the utility model.
Refer to Fig. 1 to Fig. 5, the utility model embodiment provides a kind of electrophoretic display device (EPD), it include transparent shroud upper panel 11,
Adhesion layer 12, electrophoretic display layer 13, rear conductive electrode 14 and fluid sealant 15.Transparent shroud upper panel 11, adhesion layer 12, electrophoretic display layer
13 and rear conductive electrode 14 stack gradually connection from outside to inside.Herein indication is outer and inner, is as reference, that is, to use with the visual angle of user
This electrophoretic display device (EPD) from the point of view of the ecto-entad of family, specifically, i.e., looks down from above Fig. 1.Adhesion layer 12, electrophoretic display layer 13
With the width of rear conductive electrode 14 (namely in the size in the upper surface direction parallel to rear conductive electrode 14, the paper in such as Fig. 2
Horizontal direction) less than the width of transparent shroud upper panel 11, therefore the inner surface of transparent shroud upper panel 11 is in adhesion layer 12, electrophoretic display layer
13 and rear conductive electrode 14 around form the adhesion zone that is connected with fluid sealant 15.
Transparent shroud upper panel 11 can be by glass (such as safety glass), polyethylene terephthalate (PET), polyethylene
(PE), polymethyl methacrylate (PMMA) or Merlon (PC) are made, and its water vapor rejection rate is preferably in 10-2～10-
6g/day/m2Between.Display circuit is formed with the inner surface of transparent shroud upper panel 11, for example, can be thin film transistor (TFT) (TFT)
Circuit.The display circuit forms the content shown by electrophoretic display device (EPD) to drive electrophoretic display layer 13.Fig. 4 is refer to, specifically
For, the display circuit can include pattern 111 (such as multiple figure of eight patterns) and the connecting pattern for being shown
With the connection circuit of controller (such as driving chip).In order to avoid connection circuit can be seen from before electrophoretic display device (EPD), one
In preferred embodiment, opaque shielding layer 18 is formed with the outer surface of transparent shroud upper panel 11, for blocking connection circuit
And expose pattern 111.Shielding layer 18 can be formed by printing, being coated with the modes such as opaque glue, and its thickness is very thin.
The transparent and electrically conductive of adhesion layer 12, for connecting transparent shroud upper panel 11 and electrophoretic display layer 13.Adhesion layer 12 can be used
The adhesives such as polyurethane, vinylacetate, epoxy resin are made, can also add in adhesive propylene glycol, butyl carbitol,
The additives such as methoxyl group methyl alcohol.
Electrophoretic display layer 13 includes multiple display micro units 131, and each shows that micro unit 131 includes electrophoresis liquid and is suspended in
Electrophoresis particle in electrophoresis liquid, electrophoresis particle is moved under electric field action in electrophoresis liquid, with display content.Show micro unit
131 can be microcapsules or micro-cup of the particle diameter at several microns to hundreds of micron.The structure of electrophoretic display layer 13, material and manufacturer
Method refers to the knot of the photoelectric medium in Chinese patent CN103091926A or the electro-optic layer in Chinese patent CN1764861A
Structure, material and manufacture method.
Afterwards conductive electrode 14 can be by base materials such as polyethylene terephthalate, polyethylene, polyimides (PI)
Outside (i.e. near the side of electrophoretic display layer 13) manufacture tin indium oxide (ITO) film, graphene film or fine and close aluminium foil come
Formed.Afterwards conductive electrode 14 can be with opaque.Transparent shroud upper panel 11 and rear conductive electrode 14 are connected by circuit with controller, are used
In the two ends applied voltage signal in electrophoretic display layer 13, so that electrophoretic display layer 13 shows required content.
Fluid sealant 15 is connected with the inner surface of transparent shroud upper panel 11, and be coated on adhesion layer 12, electrophoretic display layer 13 and after
The outside of conductive electrode 14, adhesion layer 12, electrophoretic display layer 13 and rear conductive electrode 14 is sealed, to prevent water, dust etc.
Enter into electrophoretic display layer 13.Fluid sealant 15 preferably can be formed using thermoplastic glue material.
Compared with prior art, the utility model embodiment arranges display circuit on transparent shroud upper panel 11, and it is transparent before
The width of cover plate 11 is more than the width of adhesion layer 12, electrophoretic display layer 13 and rear conductive electrode 14, therefore transparent shroud upper panel 11 was both
The effect of display circuit is served, and when being installed on the products such as electronic reader as header board, it is not necessary to set at its edge
Wider frame is put, the structure and manufacturing process of electrophoretic display device (EPD) is simplified, and the products such as electronic reader are seemed
Better appearance.
Fig. 3 is refer to, in a preferred embodiment, the electrophoretic display device (EPD) also includes base plate 17, and base plate 17 is led after being connected to
The inner side of electrode 14, fluid sealant 15 is filled between base plate 17 and transparent shroud upper panel 11.It should be noted that herein in indication
Side is that as reference, i.e., base plate 17 is located at the lower section of rear conductive electrode 14 in Fig. 3 with the visual angle of user.Further it is being preferable to carry out
In example, the width of transparent shroud upper panel 11 and base plate 17 is more than the width of adhesion layer 12, electrophoretic display layer 13 and rear conductive electrode 14,
Width of the width of base plate 17 less than transparent shroud upper panel 11.Transparent shroud upper panel 11, base plate 17, adhesion layer 12, electrophoretic display layer 13
With axle centered on the axis (perpendicular to the upper surface of rear conductive electrode 14) of the substantially later conductive electrode 14 of rear conductive electrode 14
To arrange, therefore the both sides of adhesion layer 12, electrophoretic display layer 13 and rear conductive electrode 14 are respectively formed with positioned at transparent shroud upper panel
Hemi-closure space between 11 and base plate 17, fluid sealant 15 fills the hemi-closure space.The sealing structure has preferably sealing
Effect.
Refer to Fig. 1 and Fig. 2, in further embodiments, fluid sealant 15 coat after the inner surface of conductive electrode 14 and viscous
The side surface of attached layer 12, electrophoretic display layer 13 and rear conductive electrode 14.The manufacturing process of this structure is fairly simple.
Due to moisture once penetrating into electrophoretic display layer 13, the performance of electrophoretic display device (EPD) will by extreme influence, therefore, be reality
Now more preferable waterproof effect, refer to Fig. 1, and in a preferred embodiment, electrophoretic display device (EPD) also includes waterproof membrane 16, waterproof membrane 16
It is coated on the outside of fluid sealant 15.In other embodiments, waterproof material is included in fluid sealant 15, waterproof material preferably may be used
Think epoxy resin or silica gel material, either fluid sealant 15 itself is epoxy resin or silica gel material.By these sides
Formula, can further improve the water resistance of electrophoretic display device (EPD).
Fig. 5 is refer to, in a preferred embodiment, on the outer surface of transparent shroud upper panel 11 touch sensitive layer is formed with
19, touch sensitive layer 19 is connected with the controller of the electrophoretic display device (EPD), for sensing operation of the user on electrophoretic display device (EPD).Touch
It can be capacitance touch sensing unit, resistive touch sensing unit or other kinds of touch sensible list to touch inductive layer 19
Unit.Transparent protection board 20 is also provided with the outside of touch sensitive layer 19, for protecting touch sensitive layer 19.Compared to
Existing touch screen technology, the transparent shroud upper panel 11 in the embodiment is felt both as the shroud upper panel of display portion as touching
Answer the substrate of part so that the structure of electrophoretic display device (EPD) is more simple.
The utility model embodiment also provides a kind of manufacture method of electrophoretic display device (EPD), and it comprises the steps：
The coating electronic ink on rear conductive electrode 14, drying electric ink forms electrophoretic display layer 13；Electric ink by
Water, adhesive, dispersant, thickener and multiple display micro units (such as microcapsules) are mixed together；Electric ink into
Divide and preparation method specifically may be referred to electricity in the Chinese patents such as CN101738814A, CN103834285A, CN104073109A
Swimming shows the composition and preparation method of coating fluid；
Display circuit, such as thin-film transistor circuit are formed in the inner side of transparent shroud upper panel 11；Form the side of display circuit
Method may be referred to the preparation method in the Chinese patents such as CN105702700A, CN1963650A；The width of transparent shroud upper panel 11 is big
In electrophoretic display layer and the width of rear conductive electrode；
Adhesion layer 12 is coated in the outside (upper surface of the electrophoretic display layer 13 i.e. shown in Fig. 1) of electrophoretic display layer 13, and
It is laminated to the inner side (lower surface of the transparent shroud upper panel 11 i.e. shown in Fig. 1) of transparent shroud upper panel 11；Specifically, can by
The adhesives such as outside coating polyurethane, vinylacetate, the epoxy resin of electrophoretic display layer 13, form viscous after adhesive solidification
Attached layer 12, can also add the additives such as propylene glycol, butyl carbitol, methoxyl group methyl alcohol in adhesive, then by rear conduction
Electrode 14, electrophoretic display layer 13 and adhesion layer 12 are laminated to together the inner side of transparent shroud upper panel 11, make adhesion layer 12 with it is transparent before
The bonding of cover plate 11；
In the outside applying paste 15 of rear conductive electrode 14, electrophoretic display layer 13 and adhesion layer 12, make fluid sealant 15 with
The inner surface connection of transparent shroud upper panel 11, and be coated on the outside of adhesion layer 12, electrophoretic display layer 13 and rear conductive electrode 14 with
Seal adhesion layer 12, electrophoretic display layer 13 and rear conductive electrode 14；Fluid sealant 15 can be thermoplastic material.
To lift the water resistance of electrophoretic display device (EPD), in a preferred embodiment, the manufacture method of the electrophoretic display device (EPD) is also
Comprise the steps：After applying paste 15, in the outside cladding waterproof membrane 16 of fluid sealant 15, or in applying paste
Before 15, in fluid sealant 15 waterproof material is added.
Above disclosed is only preferred embodiment of the present utility model, can not limit this practicality with this certainly new
The interest field of type, therefore the equivalent variations made according to the utility model claim, still belong to the utility model and are covered
Scope.
Claims (12)
1. a kind of electrophoretic display device (EPD), it is characterised in that including transparent shroud upper panel, adhesion layer, electrophoretic display layer, rear conductive electrode and
Fluid sealant, the transparent shroud upper panel, adhesion layer, electrophoretic display layer and rear conductive electrode stack gradually from outside to inside connection, described
The width of adhesion layer, electrophoretic display layer and rear conductive electrode is less than the width of the transparent shroud upper panel, the transparent shroud upper panel
Inner surface forms the adhesion zone with the sealing gemel connection around adhesion layer, electrophoretic display layer and rear conductive electrode, described
The display circuit for driving electrophoretic display layer display content is formed with the inner surface of transparent shroud upper panel, the adhesion layer is transparent
And it is conductive, the electrophoretic display layer includes multiple display micro units, and each shows that micro unit includes electrophoresis liquid and is suspended in electrophoresis
Electrophoresis particle in liquid, the transparent shroud upper panel and the rear conductive electrode are connected by circuit with controller, for described
The two ends applied voltage signal of electrophoretic display layer, the fluid sealant is connected with the adhesion zone of the inner surface of the transparent shroud upper panel,
And be coated on the outside of the adhesion layer, electrophoretic display layer and rear conductive electrode, by the adhesion layer, electrophoretic display layer and after lead
Electrode is sealed.
2. electrophoretic display device (EPD) as claimed in claim 1, it is characterised in that also including base plate, the base plate connects in the rear
The inner side of conductive electrode, the fluid sealant is filled between the base plate and the transparent shroud upper panel.
3. electrophoretic display device (EPD) as claimed in claim 2, it is characterised in that the width of the base plate is more than the adhesion layer, electricity
The width of swimming display layer and rear conductive electrode, the width of the base plate less than the transparent shroud upper panel width, the adhesion layer,
The both sides of electrophoretic display layer and rear conductive electrode are respectively formed with the semiclosed sky between the transparent shroud upper panel and base plate
Between, the fluid sealant fills the hemi-closure space.
4. electrophoretic display device (EPD) as claimed in claim 1, it is characterised in that also including waterproof membrane, the waterproof membrane is coated on institute
State the outside of fluid sealant.
5. electrophoretic display device (EPD) as claimed in claim 1, it is characterised in that include waterproof material in the fluid sealant.
6. electrophoretic display device (EPD) as claimed in claim 1, it is characterised in that the fluid sealant is epoxy resin or silica gel material.
7. electrophoretic display device (EPD) as claimed in claim 1, it is characterised in that the transparent shroud upper panel is glass, poly- terephthaldehyde
Sour glycol ester, polyethylene, polymethyl methacrylate or Merlon.
8. electrophoretic display device (EPD) as claimed in claim 1, it is characterised in that the fluid sealant is thermoplastic.
9. electrophoretic display device (EPD) as claimed in claim 1, it is characterised in that the fluid sealant coats the interior of the rear conductive electrode
Surface and the side surface of the adhesion layer, electrophoretic display layer and rear conductive electrode.
10. electrophoretic display device (EPD) as claimed in claim 1, it is characterised in that the rear conductive electrode include graphene film or
Fine and close aluminium foil.
11. electrophoretic display device (EPD)s as described in any one of claim 1 to 10, it is characterised in that the display circuit include for
The pattern for being shown and the connection circuit for connecting the pattern and controller, form on the outer surface of the transparent shroud upper panel
There is opaque shielding layer, for blocking the connection circuit and exposing the pattern.
12. electrophoretic display device (EPD)s as described in any one of claim 1 to 10, it is characterised in that in the outer of the transparent shroud upper panel
Touch sensitive layer is formed with surface, the touch sensitive layer is connected with controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621027055.2U CN206096717U (en) | 2016-08-31 | 2016-08-31 | Electrophoresis display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621027055.2U CN206096717U (en) | 2016-08-31 | 2016-08-31 | Electrophoresis display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206096717U true CN206096717U (en) | 2017-04-12 |
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ID=58474988
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621027055.2U Active CN206096717U (en) | 2016-08-31 | 2016-08-31 | Electrophoresis display |
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| CN (1) | CN206096717U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106297583A (en) * | 2016-08-31 | 2017-01-04 | 广州奥翼电子科技股份有限公司 | Electrophoretic display and manufacture method thereof |
-
2016
- 2016-08-31 CN CN201621027055.2U patent/CN206096717U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106297583A (en) * | 2016-08-31 | 2017-01-04 | 广州奥翼电子科技股份有限公司 | Electrophoretic display and manufacture method thereof |
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