CN204731485U - A kind of ink pad device of electric moistening display - Google Patents
A kind of ink pad device of electric moistening display Download PDFInfo
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- CN204731485U CN204731485U CN201520333167.XU CN201520333167U CN204731485U CN 204731485 U CN204731485 U CN 204731485U CN 201520333167 U CN201520333167 U CN 201520333167U CN 204731485 U CN204731485 U CN 204731485U
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Abstract
The utility model discloses a kind of ink pad device of electric moistening display, it is for being filled in the pixel compartments of the viewing area of the wetting display base plate of electricity by ink, this equipment comprises: printing ink transfer carrier, and it at least has the lipophilic-hydrophobic property region that a viewing area soaking display base plate with electricity to be filled matches; Supplied ink device, it is for lipophilic-hydrophobic property region coating printing ink; Wherein, the lipophilicity in this lipophilic-hydrophobic property region is lower than the lipophilicity of water-repellent layer in pixel compartments, and the lipophilic-hydrophobic property region of described carrier can controlledly contact with the viewing area of the display base plate of electric moistening display to be filled, thus the printing ink transfer applied in lipophilic-hydrophobic property region is in the pixel compartments of display base plate viewing area.Adopt this equipment to fill electric moistening display, fill ink evenly, controllability is good, and filling speed is fast, and is applicable to batch production.
Description
Technical field
The utility model relates to a kind of electric moistening display preparing technical field, fills the equipment of ink in the pixel compartments of particularly a kind of display base plate to electric moistening display.
Background technology
Electricity wetting (EFD, Electrofluidic Display), has another name called electricity moistening, is control the top layer of besieged liquid by control voltage and cause the display technique of the change of pixel.
With reference to Fig. 1 a, Fig. 1 b, Fig. 1 c and Fig. 2, electric moistening display structure mainly comprises the first current-carrying plate 1 and the second current-carrying plate 3 be oppositely arranged, and is positioned at first fluid 7, second fluid 8, insulation course 4, water-repellent layer 5 and the multiple pixel wall 6 between the first current-carrying plate 1 and the second current-carrying plate 3.Wherein, the first current-carrying plate 1 is also provided with packaging adhesive frame 2 above, and the first current-carrying plate 1 and packaging adhesive frame 2 form the upper substrate of electric moistening display.Insulation course 4 covers on the second current-carrying plate 3.Water-repellent layer 5 covers on insulation course 4, and has flat surface.Multiple pixel wall 6 is arranged on the flat surface of water-repellent layer 5, is made up of hydrophilic material, and the region between pixel wall is pixel compartments 9.Second current-carrying plate 3, insulation course 4, water-repellent layer 5, pixel wall 6 form the infrabasal plate of electric moistening display, are display base plate.First fluid 7 and second fluid 8 are two kinds of immiscible conductive fluids, and second fluid 8 is electrolyte solution, and first fluid 7 is ink, and first fluid 7 is filled between the neighbor wall 6 of viewing area, namely in pixel compartments 9.By applying sprawling and shrink and reaching display effect of voltage driven ink.As the display device that Robert A.Hayes etc. describes in article, in time not executing alive, ink spreading, on the surface of water-repellent layer, shows the color of ink.Upon application of a voltage, ink shrinks, the color of display infrabasal plate.
Due to the singularity of electric moistening display structure, the fill method of traditional liquid crystal is no longer suitable for the ink of electric moistening display and the filling of electrolyte solution material, pixel filling method main at present mainly utilizes the lipophilic-hydrophobic property of the water-repellent layer in pixel region, when water-repellent layer touches dyeing inks, ink spreading is on water-repellent layer surface, and cut off by hydrophilic pixel wall, covered by electrolyte solution above ink simultaneously.Current filling technique mainly contains several:
(1) the separatory completion method described in wo2009/065909 A1, describe a kind of equipment of filling ink, this equipment is made up of hard pmma material, length according to display panel length determine.Middle fluted, groove connects ink injection device.During filling, filling head part is near subsurface substrate, and during distance 1 micron, injection ink forms oil droplet at its groove, and oil droplet, when near substrate, is filled and entered in pixel, is reached fill uniform object by the back and forth movement of filling head part.The method has certain difficulty to filling large area display, the depth of parallelism for filling head and substrate requires very high, and along with the increase of display area, the distance of filling head partial distance display base plate will reduce the thickness and the uniformity coefficient that ensure filling ink gradually, and technical difficulty is high.
(2) vertical entry type fill method, University of Cincinnati proposes by adding electrolyte solution and ink in a reservoir, because ink density is less than electrolyte solution density, ink can swim in electrolyte solution surface and form one deck oil film, and the ink adding q.s makes the thickness of oil film reach the thickness being greater than several pixel.Vertically the substrate be fixed on dip coater is immersed in container with 0.5mm/s speed, because ink spreads in pixel compartments prior to electrolyte solution contacts to fluororesin layer, through the ink in the pixel of oil film because the water wettability and being isolated of pixel wall come and cover by electrolyte solution.The method is because will form the fixing ink of a layer thickness in a reservoir, therefore the demand of ink is comparatively large and the control of quantity of ink needs very accurate, simultaneously due to the volatility of printing ink solvent, have no idea to ensure the concentration consistance in the filling process of ink, and filling speed is comparatively slow, and the size that size limit display base plate of container.
(3) ink-jet printing process, TaiWan, China university of communications proposes and uses ink-jet printing process to be filled in pixel compartments by ink, then to be covered by water above ink and to complete the encapsulation of display device with ito glass.In the method, the precision of pad device has the restriction of self for preparation high resolving power electric moistening display part, cannot meet accurate requirement of filling small-sized pixel lattice device, and filling process expends time in longer.
In view of existing pixel filling method fill process is complicated, filling ink is uneven, poor controllability, efficiency are lower.In order to solve above several method Problems existing, the utility model provides a kind of ink pad device of uniform filling ink.
Utility model content
The purpose of this utility model is the ink pad device providing a kind of electric moistening display, solves prior art ink and fills uneven technological deficiency.
Technical solution adopted in the utility model is:
An ink pad device for electric moistening display, it is for being filled into ink in the pixel compartments of the viewing area of the wetting display base plate of electricity, and this equipment comprises:
Printing ink transfer carrier, it at least has the lipophilic-hydrophobic property region that a viewing area soaking display base plate with electricity to be filled matches;
Supplied ink device, it is for lipophilic-hydrophobic property region coating printing ink;
Wherein, the lipophilicity in this lipophilic-hydrophobic property region is lower than the lipophilicity of water-repellent layer in pixel compartments, and the lipophilic-hydrophobic property region of described carrier can controlledly contact with the viewing area of the display base plate of electric moistening display to be filled, thus the printing ink transfer applied in lipophilic-hydrophobic property region is in the pixel compartments of display base plate viewing area.
As the further improvement of utility model, described printing ink transfer carrier be arranged in described ink pad device can the round roller of fixed-axis rotation.
As the further improvement of utility model, described equipment also comprises the gearing of the display base plate for carrying electric moistening display to be filled, this gearing is positioned at below described round roller, and the display base plate of described filling electric moistening display can contact with the lipophilic-hydrophobic property region of round roller in the process of this actuator movement.
As the further improvement of utility model, described gearing is the axis of rolling that several and round roller turning axle be arranged in parallel.
As the further improvement of utility model, also comprise a casing, this casing can in order to splendid attire electrolyte solution, and described printing ink transfer carrier, supplied ink device can be immersed in the electrolyte solution of institute's splendid attire in this casing.
As the further improvement of utility model, described casing is divided into into section from front to back, fill area and three, encapsulation region part, described enter section for putting into display base plate, described fill area is for realizing coating and the transfer of ink, and described encapsulation region is used for the encapsulation of electric moistening display and collection.
As the further improvement of utility model, described supplied ink device is positioned at the top of described round roller, and lipophilic-hydrophobic property region is when turning to topmost position with round roller, and described supplied ink device carries out ink coating to it.
As the further improvement of utility model, described supplied ink device comprises and has the long and narrow container that cracks and the Micropump for pumping ink.
As the further improvement of utility model, described pad device also comprises substrate ink cleaning plant, and it has lipophilic-hydrophobic property region, and the lipophilicity in this lipophilic-hydrophobic property region is weaker than the lipophilicity of water-repellent layer in pixel compartments.
As the further improvement of utility model, described substrate ink cleaning plant is round roller, it has lipophilic-hydrophobic property region.
The beneficial effects of the utility model are:
In order to the ink fill method fill process solving existing electric moistening display is complicated, fill the problems such as ink is uneven, poor controllability, efficiency are lower, the utility model provides a kind of ink pad device of electric moistening display, coating printing ink on the carrier with lipophilic-hydrophobic property character, at least form the oil film to be transferred matched with the size of the viewing area of display base plate, wherein, the lipophilicity of this carrier is weaker than the lipophilicity of water-repellent layer in pixel compartments; The oil film to be transferred of this carrier and display base plate are had the part of pixel compartments is corresponding to be contacted, make the printing ink transfer that carrier applies in pixel compartments, realize ink and fill.Adopt this equipment to fill electric moistening display, fill ink evenly, controllability is good, and filling speed is fast, and is applicable to batch production.
Accompanying drawing explanation
Fig. 1 a is electric moistening display structural drawing.
Fig. 1 b is the structural drawing of electric moistening display upper substrate.
Fig. 1 c is the structural drawing of electric moistening display display base plate.
Fig. 2 is electric moistening display pixel wall structure diagram.
Fig. 3 is printing ink transfer carrier stretch-out view.
Fig. 4 is ink pad device operational diagram.
Fig. 5 is pixel filling equipment stereographic map.
Fig. 6 is pixel filling equipment front view.
Description of reference numerals:
1-first current-carrying plate; 2-packaging adhesive frame; 3-second current-carrying plate; 4-insulation course; 5-water-repellent layer; 6-pixel wall; 7-first fluid; 8-second fluid; 9-pixel compartments; 10-lipophilic-hydrophobic property region; 11-hydrophilic region; 12-round roller; 13-supplied ink device; 14-printing ink transfer carrier; 15-substrate ink cleaning plant; 16-display base plate; 17-gearing; 18-enters section; 19-fill area; 20-encapsulation region.
Embodiment
Be clearly and completely described below with reference to embodiment and the accompanying drawing technique effect to design of the present utility model, concrete structure and generation, to understand the purpose of this utility model, characteristic sum effect fully.Obviously; described embodiment is a part of embodiment of the present utility model, instead of whole embodiment, based on embodiment of the present utility model; other embodiments that those skilled in the art obtains under the prerequisite not paying creative work, all belong to the scope of the utility model protection.In addition, all connection/annexations related in patent, not singly refer to that component directly connects, and refer to and according to concrete performance, can connect auxiliary by adding or reducing, and form more excellent draw bail.Each technical characteristic in the utility model creation, can combination of interactions under the prerequisite of not conflicting conflict.
With reference to Fig. 2-6, the utility model provides a kind of ink pad device of electric moistening display, and for being filled into by ink in the viewing area of the wetting display base plate of electricity, electricity is wetting, and to have another name called electricity moistening, and the ink that the utility model is equally applicable to electric wet-type display is filled.Described ink pad device comprises: printing ink transfer carrier 14, and it at least has the lipophilic-hydrophobic property region 10 that a viewing area soaking display base plate with electricity to be filled matches; Supplied ink device 13, it is for lipophilic-hydrophobic property region 10 coating printing ink; Wherein, the lipophilicity in this lipophilic-hydrophobic property region 10 is lower than the lipophilicity of water-repellent layer 5 in pixel compartments 9, and the lipophilic-hydrophobic property region 10 of described printing ink transfer carrier 14 can controlledly contact with the viewing area of the display base plate of electric moistening display to be filled, thus the printing ink transfer applied in lipophilic-hydrophobic property region 10 is in the pixel compartments 9 of display base plate viewing area.
Described printing ink transfer carrier 14 for be arranged in described ink pad device can the round roller 12 of fixed-axis rotation, the surface of round roller 12 comprises lipophilic-hydrophobic property region 10 and hydrophilic region 11, its surface, lipophilic-hydrophobic property region 10 is coated with one deck oleophilic drainage material, its lipophilic-hydrophobic property is weaker than the lipophilic-hydrophobic property of water-repellent layer 5 in electric moistening display pixel compartments 9, as surface, lipophilic-hydrophobic property region 10 can apply perfluorinated resin (Cytop), water-repellent layer 5 selects Teflon AF 1600 material.Containing immiscible first fluid 7 and second fluid 8 in electric moistening display, first fluid 7 is ink, and second fluid 8 is electrolyte solution, and electrolyte solution is for having dissolved NaCl or CaCl
2deng aqueous solution or the ionic liquid of salt.Electrolyte solution only can cover the hydrophilic region of round roller, and surface, lipophilic-hydrophobic property region 10 can not be covered by electrolyte solution film.In the present embodiment, preferred electrolyte solution is for having dissolved NaCl or CaCl
2deng the aqueous solution of salt.Described ink pad device inside is also provided with the gearing 17 of the display base plate 16 for carrying electric moistening display to be filled, described gearing 17 is positioned at below described round roller 12, for the axis of rolling that several and round roller 12 turning axle be arranged in parallel, run through whole equipment, achieve automatic threading, automatic filling, automatic packaging and collection.The display base plate 16 of described filling electric moistening display can contact with the lipophilic-hydrophobic property region 10 of round roller 12 in the process of moving with this gearing 17.
Described ink pad device comprises a casing, is loaded with second fluid 8, i.e. electrolyte solution in casing, and described printing ink transfer carrier, supplied ink device are immersed in the electrolyte solution of institute's splendid attire in this casing.Described ink pad device is divided into into section 18 from front to back, fill area 19 and 20 3, encapsulation region part, described in enter section 18 for putting into display base plate 16; Described fill area 19 for realizing first fluid 7, i.e. the coating of ink and transfer; Described printing ink transfer carrier 14, supplied ink device 13 are immersed in electrolyte solution; Described encapsulation region 20 is for the encapsulation of electric moistening display and collection, and encapsulation region 20 is made up of upper substrate automatic laminating machine utilizing and electric moistening display part automatic collecting device.
Described supplied ink device 13 comprises and has the long and narrow container that cracks and the Micropump for pumping ink.Described supplied ink device 13 is positioned at the top of described round roller 12, and lipophilic-hydrophobic property region 10 is when turning to topmost position with round roller 12, and described supplied ink device 13 carries out ink coating to it.Described ink pad device also comprises substrate ink cleaning plant 15, described substrate ink cleaning plant 15 is round roller 12, it has lipophilic-hydrophobic property region 10 and hydrophilic region 11, and the lipophilicity in this lipophilic-hydrophobic property region 10 is weaker than the lipophilicity of water-repellent layer 5 in pixel compartments 9.
Described supplied ink device 13 contacts with the lipophilic-hydrophobic property region 10 of described printing ink transfer carrier 14, make lipophilic-hydrophobic property district 10 cover ink 7 and form one deck oil film, the lipophilic-hydrophobic property region 10 of described printing ink transfer carrier 14 contacts with display base plate 16 holding surface opposite, the printing ink transfer that lipophilic-hydrophobic property region 10 covers is to the viewing area of electric moistening display, due to pixel wall 6 employing is hydrophilic material, automatically the continuity of oil film can be cut off, so printing ink transfer is in the pixel compartments 9 of display.Display base plate 16 moves on along with gearing 17, contact with substrate ink cleaning plant 15, because the lipophilic-hydrophobic property region 10 of substrate ink cleaning plant 15 has lipophilicity, and pixel wall selects water wetted material to make, so a small amount of ink of pixel wall 6 remained on surface transfers to the lipophilic-hydrophobic property region 10 of substrate ink cleaning plant 15 on the surface by the surface of pixel wall 6, thus be pulled away, complete scale removal process.And the lipophilic-hydrophobic property region 10 material lipophilicity of substrate ink cleaning plant 15 is weaker than the lipophilicity of water-repellent layer 5 in pixel compartments 9, so the ink in pixel compartments 9 can not be taken away by substrate ink cleaning plant 15.
Described supplied ink device 13 has the container of elongate slit by lower end and Micropump forms, and can guarantee that on printing ink transfer carrier 14, surface, lipophilic-hydrophobic property region 10 obtains enough ink by the feed speed controlling Micropump.Before filling starts, empty the ink of supplied ink internal system, then opening described printing ink transfer carrier 14 makes it rotate under electrolyte solution, surface, lipophilic-hydrophobic property region 10 can not be covered by electrolyte solution film, when hydrophilic region 11 surface is covered by electrolyte solution completely, begin through Micropump and provide ink to described printing ink transfer carrier 14, after contact ink, surface, lipophilic-hydrophobic property region 10 can form the uniform oil film of one deck, oil film is size according to the pixel region of electric moistening display part and figure, be patterned on the lipophilic-hydrophobic property material in lipophilic-hydrophobic property region 10, hydrophilic region 11 surface is not covered by ink due to the protection of electrolyte solution film.
Claims (10)
1. an ink pad device for electric moistening display, it is for being filled into ink in the pixel compartments of the viewing area of the wetting display base plate of electricity, and it is characterized in that, this equipment comprises:
Printing ink transfer carrier, it at least has the lipophilic-hydrophobic property region that a viewing area soaking display base plate with electricity to be filled matches;
Supplied ink device, it is for lipophilic-hydrophobic property region coating printing ink;
Wherein, the lipophilicity in this lipophilic-hydrophobic property region is lower than the lipophilicity of water-repellent layer in pixel compartments, and the lipophilic-hydrophobic property region of described carrier can controlledly contact with the viewing area of the display base plate of electric moistening display to be filled, thus the printing ink transfer applied in lipophilic-hydrophobic property region is in the pixel compartments of display base plate viewing area.
2. ink pad device according to claim 1, is characterized in that, described printing ink transfer carrier be arranged in described ink pad device can the round roller of fixed-axis rotation.
3. ink pad device according to claim 2, it is characterized in that, described equipment also comprises the gearing of the display base plate for carrying electric moistening display to be filled, this gearing is positioned at below described round roller, and the display base plate of described filling electric moistening display can contact with the lipophilic-hydrophobic property region of round roller in the process of this actuator movement.
4. ink pad device according to claim 3, is characterized in that, described gearing is the axis of rolling that several and round roller turning axle be arranged in parallel.
5. the ink pad device according to any one of Claims 1-4, it is characterized in that, also comprise a casing, this casing can in order to splendid attire electrolyte solution, and described printing ink transfer carrier, supplied ink device can be immersed in the electrolyte solution of institute's splendid attire in this casing.
6. ink pad device according to claim 5, it is characterized in that, described casing is divided into into section from front to back, fill area and three, encapsulation region part, described enter section for putting into display base plate, described fill area is for realizing coating and the transfer of ink, and described encapsulation region is used for encapsulation and the collection of electric moistening display.
7. the ink pad device according to any one of claim 2 to 4, it is characterized in that, described supplied ink device is positioned at the top of described round roller, and lipophilic-hydrophobic property region is when turning to topmost position with round roller, and described supplied ink device carries out ink coating to it.
8. the ink pad device according to any one of Claims 1-4, is characterized in that, described supplied ink device comprises and has the long and narrow container that cracks and the Micropump for pumping ink.
9. the ink pad device according to any one of Claims 1-4, it is characterized in that, described pad device also comprises substrate ink cleaning plant, and it has lipophilic-hydrophobic property region, and the lipophilicity in this lipophilic-hydrophobic property region is weaker than the lipophilicity of water-repellent layer in pixel compartments.
10. the ink pad device according to any one of claim 9, is characterized in that, described substrate ink cleaning plant is round roller, it has lipophilic-hydrophobic property region.
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| CN201520333167.XU CN204731485U (en) | 2015-05-20 | 2015-05-20 | A kind of ink pad device of electric moistening display |
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| CN201520333167.XU CN204731485U (en) | 2015-05-20 | 2015-05-20 | A kind of ink pad device of electric moistening display |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104932096A (en) * | 2015-05-20 | 2015-09-23 | 华南师范大学 | Ink filling equipment and ink filling method for electrofluidic displays |
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2015
- 2015-05-20 CN CN201520333167.XU patent/CN204731485U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104932096A (en) * | 2015-05-20 | 2015-09-23 | 华南师范大学 | Ink filling equipment and ink filling method for electrofluidic displays |
| WO2016184135A1 (en) * | 2015-05-20 | 2016-11-24 | 深圳市国华光电科技有限公司 | Ink filling device and method for electro-wetting display |
| CN104932096B (en) * | 2015-05-20 | 2017-08-25 | 华南师范大学 | The ink pad device and method of a kind of electric moistening display |
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