CN101893801A - Display device capable of inputting by touching and pressing and method thereof - Google Patents
Display device capable of inputting by touching and pressing and method thereof Download PDFInfo
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- CN101893801A CN101893801A CN2010102219119A CN201010221911A CN101893801A CN 101893801 A CN101893801 A CN 101893801A CN 2010102219119 A CN2010102219119 A CN 2010102219119A CN 201010221911 A CN201010221911 A CN 201010221911A CN 101893801 A CN101893801 A CN 101893801A
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Abstract
The invention discloses a display device and a method thereof. The display device comprises an electrophoretic display layer, an electrode layer and a gap layer, wherein a control element provides voltage difference to act on the electrophoretic display layer. A user touches and presses the gap layer to deform the gap layer to drive microcapsule particles of the electrophoretic display layer to move, thereby displaying the written information on the device. In addition, the invention also provides an input display mode which can be used by the user to write or erase information on the display device without an additional electric writing device.
Description
Technical field
The invention relates to a kind of electronic display unit and using method thereof; Particularly, be the electronic display unit of importing and show input information by the mode of exerting pressure for the user about a kind of.
Background technology
Electrophoretic display device (EPD) is general so-called Electronic Paper, is at present commonly character image writing implement repeatedly to be had splendid contrast, image resolution and wide viewing angle function.Use therein electronic ink material comprises at least two kinds and has opposite electrical microcapsule particle, can be by external electric field change drive part particle state, and then display color or image frame.In addition, because of electronic ink material is a conducting polymer composite, appearance and feature are emphasized the pliability and the portability of electrophoretic display device (EPD) as paper, and the voltage that need not continue to provide extra is kept same frame, significantly reduces overall power consumption.
Existing electrophoresis showed is write in the technology, many charged contact electrophoretic display device (EPD) surfaces additionally to provide, and the sensitive surface electric charge makes and electric field change turns to different conditions to drive microcapsule particle.In this design,, therefore can increase whole power consumption owing to must continue charged power supply of supply.In the another kind design, apparatus conduction property pen is write, be a stature matter with metal material, nib changes by user's electrostatic induction surface charge then based on conductive material.But in order to keep suitable contact area to guarantee actual induction, the general atom nib of nib is big, can't simulate the style of writing of general ballpoint pen, causes the inconvenience in the use.
Because of everyone static physique difference, the related susceptibility that has influence on touch-control sensing when operating can't be implemented convenience in addition.
So the input and display device of the present invention's proposition, the lettering pen of the special construction of need not arranging in pairs or groups is finished the input display message to press mode.
Summary of the invention
The object of the invention is to provide a kind of display device, shows and writes down input information by the mode of exerting pressure.
The object of the invention is to provide a kind of display device, uses the Electronic Paper technology that writes and erase, but therefore Palingraphia and need not continue to supply impressed voltage and keep picture is saved power consumption.
Display device of the present invention comprises first electrode layer, the second electrode lay, electrophoresis showed layer, clearance layer and control element, wherein the electrophoresis showed layer is arranged between first electrode layer and the second electrode lay, clearance layer then is arranged between the second electrode lay and the electrophoresis showed layer, this clearance layer also comprises at least one gap and keeps the unit, keeps the clearance in order to support this clearance layer.Control element is electrically connected on first electrode layer and the second electrode lay, provides a voltage difference to act between first electrode layer and the second electrode lay.Make the second electrode lay have the displacement deformation of stretching into clearance layer towards the electrophoresis showed layer by the mode of exerting pressure, stretch into the deformation of clearance layer towards the electrophoresis showed layer according to the second electrode lay, the electrophoresis showed layer of the electrical variation drive part that produces is to show that input information is in the electrophoresis showed layer.
The present invention also further provides a kind of input display method, it is characterized in that, comprises the following step:
One display device is provided, comprise one first electrode layer, a second electrode lay, an electrophoresis showed layer between this first electrode layer and this second electrode lay and a clearance layer between this electrophoresis showed layer and this second electrode lay;
Provide a voltage difference to act between this first electrode layer and this second electrode lay; And
Stretch into the deformation of this clearance layer according to this second electrode lay towards this electrophoresis showed layer, this electrophoresis showed layer of the electrical variation drive part of generation is to show that input information is in this electrophoresis showed layer.
Description of drawings
Fig. 1 is an embodiment of display device of the present invention;
Fig. 2 A is a clearance layer embodiment of display device;
Fig. 2 B and Fig. 2 C are other clearance layer embodiment of display device;
Fig. 3 is the input display method process flow diagram;
Fig. 4 A is the microcapsule particle constitutional diagram of electrophoresis showed layer;
Fig. 4 B is another microcapsule particle constitutional diagram of electrophoresis showed layer;
Fig. 5 is two operator scheme process flow diagrams;
Fig. 6 is another embodiment of display device of the present invention;
Fig. 7 A is a circuit diagram during detecting element is reset;
Fig. 7 B is a circuit diagram during detecting element writes;
Fig. 8 A is for pressing the sequential chart of action;
Fig. 8 B is the sequential chart that presses action.
[main element symbol description]
1 display device
100 first electrode layers
200 the second electrode lays
300 electrophoresis showed layers
310 microcapsule particles
320 first surfaces
330 second surfaces
400 clearance layer
The unit is kept in 410 gaps
412 gap
414 glue frames
420 clearances
500 control elements
510 first output terminals
520 second output terminals
600 protective seams
700 detecting elements
710 voltage sources (power line)
720 read lines (readout line)
The V voltage difference
V1 first voltage difference
V2 second voltage difference
T1 very first time point
T2 second time point
T3 the 3rd time point
Tp touch-control time point
Δ Q charge variation amount
The N1 first node
C1 first electric capacity
C2 electricity two electric capacity
SW1 first switch
The SW2 second switch
V1～V4 voltage quasi position
The accurate position of Q1Q2 electric charge
Embodiment
The present invention provides a kind of display device, by the display device of the mode input information of exerting pressure.The preferable not pointer of electric property of using of display device of the present invention promptly must not continue to supply electric power or not have a pointer of electrical conductivity, also can directly write with finger manipulation, therefore has higher convenience.Moreover display device adopts the Electronic Paper technology that writes and erase, the preferable picture that can under the state that does not continue the supply impressed voltage, keep high contrast, but also Palingraphia information, and display device of the present invention has the advantage of low power consumption.
In the embodiment shown in fig. 1, display device 1 comprises first electrode layer 100, the second electrode lay 200, electrophoresis showed layer 300, clearance layer 400 and control element 500.First electrode layer 100 is preferably metal electrode layer, and the second electrode lay 200 is preferably transparent electrode layer.Be suitable for transparent conductive film material (transparent conductive oxide as transparent electrode layer, TCO) as indium tin oxide (indium tin oxide, ITO), perhaps have equally high penetration and high conductive characteristic indium-zinc oxide (indium zinc oxide, IZO).Electrophoresis showed layer 300 is arranged between first electrode layer 100 and the second electrode lay 200, and electrophoresis showed layer 300 has a plurality of elasticity microcapsule particles 310.Microcapsule particle 310 is preferably has two kinds of opposite electrical charged particles, and two kinds of charged particles are that color is different, for example B﹠W.Make microcapsule particle 310 in the middle of electrophoresis showed layer 300, move according to first electrode 100 and 200 electric field change of second electrode.In above-mentioned device; at the outside preferable in addition the form protective seam 600 of first electrode layer 100 with the second electrode lay 200; with the guard electrode layer and keep when input fluent writing, suitable material be polyethylene terephthalate (Polyethylene terephthalate, PET).
As shown in Figure 1, clearance layer 400 is arranged between the second electrode lay 200 and the electrophoresis showed layer 300, and distance is preferably 3～5 microns (μ m) between the clearance layer 400.As shown in Figure 1, clearance layer 400 have the gap keep unit 410 support keep between the clearance layer 400 apart from and clearance 420 is provided, the gap is kept unit 410 and be can be gap (spacer) 412 and coat in the clearance layer 400, or around glue frame (frame) 414 being set in clearance layer 400.
In Fig. 2 A embodiment, (spacer) 412 keeps the unit as the gap between clearance layer 400 by coating clearance, make the clearance layer filling of part gap 412, keep the spacing of clearance layer 400, provide clearance 420 with the displacement stroke height when pressing with support.In addition, in Fig. 2 B embodiment, by keeping the unit in clearance layer 400 to form the gap around hollow, rectangular glue frame 414 is set.Glue frame 414 itself can support the spacing of keeping clearance layer 400, and the clearance 420 in the middle of the glue frame 414 provides writes the displacement stroke height that presses.And in another embodiment, shown in Fig. 2 C, simultaneously around hollow, rectangular glue frame 414 and gap 412 being set to keep the spacing of clearance layer 400, the displacement stroke height that clearance 420 also provides the user to press.In above-mentioned three embodiment, the setting of unit 410 is kept in the gap can keep clearance 420, the displacement stroke height that provides the real user of operation to exert pressure, induction presses the electrical variation of position by this, make that electrophoresis showed layer 300 is able to can show immediately that according to electrically changing drive part microcapsule particle 310 written information is on display device 1.
As shown in Figure 1, display device 1 has control element 500 in addition, is one group of control circuit in order to supply driven electrophoresis showed layer 300, can be realized by ASIC or FPGA circuit.Control element 500 provides first output terminal 510 and second output terminal 520; First output terminal 510 is electrically connected on first electrode layer 100, and second output terminal 520 is electrically connected on the second electrode lay 200.
The embodiment of input display method as shown in Figure 3, step S1 provides above-mentioned display device 1, comprise first electrode layer, the second electrode lay, electrophoresis showed layer and clearance layer, then among the step S2, control element 500 provides voltage difference V to act on first electrode layer 100 and the second electrode lay 200; Shown in Fig. 4 A, this moment, the voltage difference V of control element 500 provided an even external electric field action in electrophoresis showed layer 300, make the microcapsule particle 310 of electrophoresis showed layer 300 be subjected to the uniform electric field effect, and evenly electrically move the surface that is pasted to electrophoresis showed layer 300.This moment, step S4 user was by pressing the mode written information on display device 1, make the clearance 420 of clearance layer 400 produce deformation because of pressing action, the external electric field of part produces electrical variation immediately, the elasticity microcapsule particle 310 that is able to drive part electrophoresis showed layer 300 relatively moves, and final step S5 is to show input information.
See also step S2 and the last figure of Fig. 4 A, control element 500 provides voltage difference V to act between first electrode layer 100 and the second electrode lay 200, promptly provide uniform electric field to act on electrophoresis showed layer 300, microcapsule particle 310 is subjected to electric field influence and evenly moves the first surface 320 that is pasted to electrophoresis showed layer 300, this moment, display device 1 presented a uniform picture, finished and prepared the written information for the user in advance.Described as the S3 step; because of having clearance layer 400 between the second electrode lay 200 and the electrophoresis showed layer 300; when the user presses the second electrode lay 200 or protective seam 600 and carries out action of writing; therefore the second electrode lay 200 has the displacement deformation of stretching into clearance layer 400 towards electrophoresis showed layer 300, presses the position electric field and changes the microcapsule particle 310 of activation part electrophoresis showed layer 300 because of electrically mobile.Shown in Fig. 4 A figure below, the microcapsule particle 310 of part moves the second surface 330 that is pasted to electrophoresis showed layer 300 because of pressing the position electric field change.Microcapsule particle 310 itself has two kinds of electrical differences and the different charged particle of color, be attached to first surface 320 with respect to the microcapsule particle 310 that is pressed, the microcapsule particle 310 that presses under the position is pasted to second surface 330 because of electrically producing displacement, step S4 promptly shows the input information of high contrast on electrophoresis showed layer 300, finishes also information display function of input.
The present invention also provides another embodiment.See also step S2 and the last figure of Fig. 4 B, control element 500 provides reverse voltage difference V to act between first electrode layer 100 and the second electrode lay 200.As the foregoing description start principle, provide uniform electric field to act on electrophoresis showed layer 300, microcapsule particle 310 promptly is subjected to electric field influence and evenly moves the second surface 330 that is pasted to electrophoresis showed layer 300.This moment, display device 1 presented a uniform picture equally, finished and prepared the written information for the user in advance.Described as the S3 step, when the user presses the clearance layer 400 displacement deformation that action of writing produces, press the position and produce electric field and change the microcapsule particle 310 of activation part electrophoresis showed layer 300 because of electrically mobile.See also Fig. 4 B figure below, the microcapsule particle 310 of part moves the first surface 320 that is pasted to electrophoresis showed layer 300 because of pressing the position electric field change.Be attached to second surface 330 with respect to the microcapsule particle 310 of being exerted pressure, the microcapsule particle 310 that presses under the position is pasted to first surface 320 because of electrically producing displacement, step S4 promptly shows the input information of high contrast on electrophoresis showed layer 300, finishes also information display function of input.
As shown in Figure 5, the modes of display operation S10 of display device 1 is preferable has the first operator scheme S11 and second an operator scheme S12.Control element 500 provides the first voltage difference V1 in the first operator scheme S11, the second voltage difference V2 that is different from the first voltage difference V1 then is provided in the second operator scheme S12.In preferred embodiment, the second voltage difference V2 is in reverse to the first voltage difference V1.When the first operator scheme S11, please refer to the illustrative view of Fig. 4 A, step S11a provides the first voltage difference effect V1 to provide uniform electric field to act on electrophoresis showed layer 300, press change activation part microcapsule particle 310 of position electric field and electrically move the second surfaces 330 that are pasted to electrophoresis showed layer 300, step S11b so that according to user's the position display input information of exerting pressure in display device 1.When the second operator scheme S12, step S12a provides the second voltage difference V2 effect that is in reverse to the first voltage difference V1.Please refer to the illustrative view of the last figure of Fig. 4 B, this moment, microcapsule particle 310 was subjected to the evenly mobile second surface 330 that is pasted to of reversed electric field, exchanged and write the input information that is shown in electrophoresis showed layer 300 when direction of an electric field is erased the first operator scheme S11.Then step S12b presses action of writing, and the display message of writing of display device 1 is provided equally.By the switching of above-mentioned two operator schemes, except being provided, the user repeats input information in display device 1, and also image switching does not need extra means with the frame update of erasing with the last written information of erasing fast, improves the convenience of display device 1 really.
In the another embodiment of the present invention, as shown in Figure 6, display device 1 comprises detecting element 700 in addition, can provide circuit control by ASIC or FPGA, be electrically connected on control element 500, electrically change (as: electric field, electric charge or capacitance change) in order to induction and record electrophoresis showed layer 300.Detecting element 700 circuit and sequential explanation are shown in Fig. 7 A to Fig. 8 B.Shown in Fig. 7 A, voltage source (power line) 710 provides a potential pulse to act on electrophoresis showed layer 300.In sequential chart 8A, very first time point t1 to the second time point t2 is for during resetting, and voltage source 710 provides voltage V3 activation to make the microcapsule particle 310 of electrophoresis showed layer 300 move the surface that is attached at electrophoresis showed layer 300.This moment, first switch SW 1 was shut and second switch SW2 opens the capacitance that ground connection makes first capacitor C, 1 record electrophoresis showed layer 300, and first node N1 charge value rises to the accurate position of Q2 by the accurate position of Q1, finishes replacement storage electric charge.At the second time point t2 to the, three time point t3 for during writing, voltage source 710 provides the accurate position of V4 voltage, the V4 voltage quasi position is lower than the V3 voltage quasi position, because of the high voltage power supply need be provided to provide, reach simultaneously and reduce power consumption and prepare touch control detection, shown in Fig. 7 B, this moment, 1 unlatching of first switch SW and second switch SW2 shut, first capacitor C 1 begins second capacitor C 2 is charged immediately, prepares the record user and presses written information.
As during the writing of Fig. 8 A, this moment, first node N1 charge value charged to the accurate position of Q2 electric charge in the replacement time, but move on display device 1 because of the user presses, make this regional electric field remain unchanged and first node N1 charge value maintains the accurate position of Q2.Read line this moment (readout line) 720 record first node N1 charge values are constant for stablizing, and are judged as not touch area.On the other hand, see also during the writing of Fig. 8 B, when the user presses display device 1 surface and writes input information at touch-control time point tp, because of the feasible external electrical field variation partly of the displacement deformation induction of clearance layer 400, the quantity of electric charge of the electrophoresis showed layer 300 of first capacitor C 1 produces and changes, make second capacitor C, the 2 charging back quantities of electric charge form variable quantity synchronously, the quantity of electric charge of first node N1 is by the Q2 decline Δ Q quantity of electric charge.Note down the at that time input information position of electrophoresis showed layer 300 by the Δ Q variable quantity that read line 720 reads first node N1 this moment, differentiates to be the touch area.Electrophoresis showed layer 300 charge variation of above-mentioned detecting element 700 reading and recording part are differentiated user's written information by this and are finished record.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (14)
1. a display device is characterized in that, comprises:
One first electrode layer;
One the second electrode lay;
One electrophoresis showed layer is arranged between this first electrode layer and this second electrode lay;
One clearance layer is arranged between this second electrode lay and this electrophoresis showed layer, comprises at least one gap and keeps the unit, keeps the clearance in order to support this clearance layer; And
One control element is electrically connected on this first electrode layer and this second electrode lay, provides a voltage difference to act between this first electrode layer and this second electrode lay.
2. display device as claimed in claim 1 is characterized in that, it is gap that the unit is kept in this gap, coats in this clearance layer.
3. display device as claimed in claim 1 is characterized in that, it is a glue frame that the unit is kept in this gap, around being arranged at this clearance layer.
4. display device as claimed in claim 1 is characterized in that, this gap is kept the unit and comprised a glue frame and gap, around this glue frame being set in this clearance layer, and is coated with this gap in this clearance layer.
5. display device as claimed in claim 1 is characterized in that, the thickness of this clearance layer is 3～5 microns.
6. display device as claimed in claim 1 is characterized in that, this second electrode lay is a transparent electrode layer.
7. display device as claimed in claim 1, this voltage difference that this control element provides comprises a voltage difference and one second voltage difference, this first voltage difference wherein is provided in one first operator scheme, and in one second operator scheme, provides this second voltage difference to be different from this first voltage difference.
8. display device as claimed in claim 7, this second voltage difference is in reverse to this first voltage difference.
9. display device as claimed in claim 1, other comprises a detecting element, is electrically connected on this control element, electrically changes in order to respond to and to write down this electrophoresis showed layer.
10. display device as claimed in claim 1 is characterized in that, this second electrode lay has a displacement deformation of stretching into this clearance layer towards this electrophoresis showed layer.
11. an input display method is characterized in that, comprises the following step:
One display device is provided, comprise one first electrode layer, a second electrode lay, an electrophoresis showed layer between this first electrode layer and this second electrode lay and a clearance layer between this electrophoresis showed layer and this second electrode lay;
Provide a voltage difference to act between this first electrode layer and this second electrode lay; And
Stretch into the deformation of this clearance layer according to this second electrode lay towards this electrophoresis showed layer, this electrophoresis showed layer of the electrical variation drive part of generation is to show that input information is in this electrophoresis showed layer.
12. input display method as claimed in claim 11 is characterized in that, this provides the voltage difference step to comprise:
When one first operator scheme, provide one first voltage difference to act between this first electrode layer and this second electrode lay, in order to show that this input information is in this electrophoresis showed layer; And
When one second operator scheme, provide one second voltage difference to act between this first electrode layer and this second electrode lay, be shown in the input information of this electrophoresis showed layer in order to erase.
13. input display method as claimed in claim 12 is characterized in that, this second operator scheme step comprises this first voltage difference of reverse as this second voltage difference.
14. input display method as claimed in claim 11 further comprises: the electrical variation of responding to this electrophoresis showed layer is shown in the input information of this electrophoresis showed layer with record.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102219119A CN101893801B (en) | 2010-07-05 | 2010-07-05 | Display device capable of inputting by touching and pressing, and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102219119A CN101893801B (en) | 2010-07-05 | 2010-07-05 | Display device capable of inputting by touching and pressing, and method thereof |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103386917A Division CN102902125A (en) | 2010-07-05 | 2010-07-05 | Touch-pressure inputting display device and method thereof |
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| Publication Number | Publication Date |
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| CN101893801A true CN101893801A (en) | 2010-11-24 |
| CN101893801B CN101893801B (en) | 2012-11-07 |
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| CN2010102219119A Active CN101893801B (en) | 2010-07-05 | 2010-07-05 | Display device capable of inputting by touching and pressing, and method thereof |
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| CN102654805A (en) * | 2011-08-03 | 2012-09-05 | 京东方科技集团股份有限公司 | Electronic handwriting screen |
| CN103218975A (en) * | 2012-01-19 | 2013-07-24 | 元太科技工业股份有限公司 | Court sideline module using display |
| CN104749852A (en) * | 2013-12-27 | 2015-07-01 | 元太科技工业股份有限公司 | Electronic writing device and driving method thereof |
| CN104914642A (en) * | 2014-03-13 | 2015-09-16 | 元太科技工业股份有限公司 | Electrophoretic display device and method of driving the same |
| WO2017159221A1 (en) * | 2016-03-14 | 2017-09-21 | 学校法人 慶應義塾 | Electrochromic rendering/displaying device |
| CN107291245A (en) * | 2017-07-05 | 2017-10-24 | 京东方科技集团股份有限公司 | A kind of touch-control display panel, touch control method and display device |
| CN113168064A (en) * | 2018-12-21 | 2021-07-23 | 伊英克公司 | Sub-threshold addressing and erasure in magneto-electrophoretic writing media |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102654805B (en) * | 2011-08-03 | 2014-11-19 | 京东方科技集团股份有限公司 | Electronic handwriting screen |
| WO2013017089A1 (en) * | 2011-08-03 | 2013-02-07 | 京东方科技集团股份有限公司 | Electronic hand-writing screen |
| US9759977B2 (en) | 2011-08-03 | 2017-09-12 | Boe Technology Group Co., Ltd. | Electronic handwriting screen |
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| US20150262521A1 (en) * | 2014-03-13 | 2015-09-17 | E Ink Holdings Inc. | Electrophoretic display apparatus and driving method thereof |
| US9576516B2 (en) * | 2014-03-13 | 2017-02-21 | E Ink Holdings Inc. | Electrophoretic display apparatus having colorful handwriting function and driving method thereof |
| CN104914642B (en) * | 2014-03-13 | 2018-02-09 | 元太科技工业股份有限公司 | Electrophoretic display device and method of driving the same |
| WO2017159221A1 (en) * | 2016-03-14 | 2017-09-21 | 学校法人 慶應義塾 | Electrochromic rendering/displaying device |
| JPWO2017159221A1 (en) * | 2016-03-14 | 2019-02-28 | 学校法人慶應義塾 | Electrochromic drawing / display device |
| CN107291245A (en) * | 2017-07-05 | 2017-10-24 | 京东方科技集团股份有限公司 | A kind of touch-control display panel, touch control method and display device |
| CN113168064A (en) * | 2018-12-21 | 2021-07-23 | 伊英克公司 | Sub-threshold addressing and erasure in magneto-electrophoretic writing media |
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| CN101893801B (en) | 2012-11-07 |
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