CN101762932B - Read-only type safe single-side electronic paper - Google Patents
Read-only type safe single-side electronic paper Download PDFInfo
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- CN101762932B CN101762932B CN2009102415022A CN200910241502A CN101762932B CN 101762932 B CN101762932 B CN 101762932B CN 2009102415022 A CN2009102415022 A CN 2009102415022A CN 200910241502 A CN200910241502 A CN 200910241502A CN 101762932 B CN101762932 B CN 101762932B
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Abstract
The invention discloses read-only type safe single-side electronic paper, comprising a first grid array electrode, a nonvolatile display material and a second electrode. Each grid of the first grid array electrode is provided with an independent electrode and an electrode lead wire; the second electrode is a common electrode; the first grid array electrode, the nonvolatile display material and the second electrode form a lamination; an electronic switch is arranged between at least one grid electrode of the first grid array electrode and the second electrode; when the electronic switch is in an on-state, the electronic switch comprises a fusible wire protective circuit; when a fusible wire of the fusible wire protective circuit is fused, the electronic switch is in a non-reversible low impedance state or an electric on-state. The technical scheme effectively solves the problem that the electronic paper is illegally or accidently changed by an external electric field or an external voltage, effectively maintains the information presented by the electronic paper and provides an effective technical scheme for the electronic paper applied to the fields of certificates, official documents, and the like.
Description
Technical field
The present invention relates to read-only type safe single-side electronic paper, particularly relate to the safety electronic paper that can prevent that the Electronic Paper displayed information from being revised unusually.
Background technology
With the little glass of box (MicroCup) of the electric ink of E-ink, SIPIX is that the electronic paper technology of representative presents the trend of popularizing day by day, obtains bigger progress in fields such as e-book, portable terminal, portable sets, also begins to use aspect electronic newspaper.Still keep displaying contents because Electronic Paper has under the situation that does not have power supply to supply with, have energy-saving advantages, can also upgrade the Electronic Paper content displayed at any time on demand simultaneously.Usually be the optical states that changes pixel by the electric field that the pixel of giving Electronic Paper applies certain direction to the content update of Electronic Paper.Also just because of this characteristic makes Electronic Paper not be suitable for the application that the information that need prevent is distorted.Because anyone can change or delete the shown content of Electronic Paper by the electric field that applies certain intensity.For in the application of electronic newspaper, owing to increased the interface that Electronic Paper is upgraded, cause anyone can change the content of electronic newspaper easily by this interface, when these are modified content and the newspaper that content is distorted is blazed abroad, with the damage that causes for interests of another, honor, also may produce disadvantageous societal consequence.Particularly, when Electronic Paper being used for certificate or the use of authentication text, will there be very big uncertainty in the reliability of its presentation information.
Because the employed a large amount of paper documents of people's daily life need prevent contents lost or be maliciously tampered, and as official document, certificate, standard, patent gazette etc., are very unfortunate if can not use the Electronic Paper of energy-conserving and environment-protective in these fields.
Summary of the invention
The present invention will propose technical solution to solve or to be that part solves the information protection problem that existing electronic paper technology exists at least, to realize the application of Electronic Paper in more areas.
The term explanation: Electronic Paper described in the present invention is meant to comprise any parts with definite shape that comprise one of following material layer or combination: have the microcapsules electronic ink layer of electrophoretic effect, the little cup structure thinner package rete with electrophoretic effect, screw (Gyricon) layer, have the electrodeless Electronic Paper of the Electronic Paper material layer of electrowetting effect, bistable cholesteric, Beijing Pai Ruigen science and technology etc.
The term explanation: " Electronic Paper is carried out electronization " described in the present invention has identical implication with " Electronic Paper is printed ", even the pixel of Electronic Paper presentation information under effect of electric field.
Because existing Electronic Paper all is based on nonvolatile display material, as has the microcapsules electronic ink layer of electrophoretic effect, the little cup structure thinner package rete with electrophoretic effect, screw (Gyricon) layer, have the Electronic Paper material layer of electrowetting effect, bistable cholesteric etc.This material can change the optical states that material presented by the electric field that applies certain intensity and direction, because electric field belongs to invisible effect, be easy to be used to improper modification or distort the content that Electronic Paper presents, so need adopt technological means to control for the electric field that acts on the Electronic Paper by other people.
The present invention proposes a plurality of solutions, specifically describes as follows:
First kind of scheme is a kind of safety electronic paper with part or Global Information defencive function of design, that is:
1, a kind of read-only type safe single-side electronic paper is characterized in that comprising:
The first grid array electrode has independently a grid electrode and a contact conductor on each grid of the described first grid array electrode;
Nonvolatile display material;
Second electrode is public electrode;
The described first grid array electrode, nonvolatile display material and second electrode form lamination;
Between at least one grid electrode of the described first grid array electrode and described second electrode, an electronic switch is set, when described electronic switch was in conducting state, described electronic switch made between described grid electrode and described second electrode and is in low impedance state or electric conducting state;
Described electronic switch comprises fuse protected circuit, and after the fuse of described fuse protected circuit was fused, described electronic switch was in irreversible low impedance state or electric conducting state.
2, a kind of read-only type safe single-side electronic paper is characterized in that comprising:
The first grid array electrode has independently a grid electrode and a contact conductor on each grid of the described first grid array electrode;
Nonvolatile display material;
Second electrode is the grid array electrode, and independently a grid electrode and a contact conductor are arranged on each grid of described second electrode;
The described first grid array electrode, nonvolatile display material and second electrode form lamination;
Between the corresponding grid electrode of at least one grid electrode of the described first grid array electrode and described second electrode, an electronic switch is set, when described electronic switch was in conducting state, described electronic switch made between the corresponding grid electrode of described grid electrode and described second electrode and is in low impedance state or electric conducting state;
Described electronic switch comprises fuse protected circuit, and after the fuse of described fuse protected circuit was fused, described electronic switch was in irreversible low impedance state or electric conducting state.
3, a kind of read-only type safe single-side electronic paper is characterized in that comprising:
The first grid array electrode has independently a grid electrode and a contact conductor on each grid of the described first grid array electrode;
Nonvolatile display material;
Second electrode is public electrode;
The described first grid array electrode, nonvolatile display material and second electrode form lamination;
At least one Electronic Paper protection zone is set in described lamination, and described Electronic Paper protection zone comprises an Electronic Paper pixel at least;
The described first grid array electrode is provided with an electronic switch between each grid electrode of described Electronic Paper protection zone and described second electrode, when described electronic switch was in conducting state, described electronic switch made between described grid electrode and described second electrode and is in low impedance state or electric conducting state;
Described electronic switch comprises fuse protected circuit, and after the fuse of described fuse protected circuit was fused, described electronic switch was in irreversible low impedance state or electric conducting state.
4, a kind of read-only type safe single-side electronic paper is characterized in that comprising:
The first grid array electrode has independently a grid electrode and a contact conductor on each grid of the described first grid array electrode;
Nonvolatile display material;
Second electrode is the grid array electrode, and independently a grid electrode and a contact conductor are arranged on each grid of described second electrode;
The described first grid array electrode, nonvolatile display material and second electrode form lamination;
At least one Electronic Paper protection zone is set in described lamination, and described Electronic Paper protection zone comprises an Electronic Paper pixel at least;
The described first grid array electrode is provided with an electronic switch between the corresponding grid electrode of each grid electrode of described Electronic Paper protection zone and described second electrode, when described electronic switch was in conducting state, described electronic switch made between the corresponding grid electrode of described grid electrode and described second electrode and is in low impedance state or electric conducting state;
Described electronic switch comprises fuse protected circuit, and after the fuse of described fuse protected circuit was fused, described electronic switch was in irreversible low impedance state or electric conducting state.
Such scheme can be controlled pixel or the Electronic Paper protection zone that is applied to the display message that needs protection by the control electronic switch; when needs prevent to need protection the pixel of display message or Electronic Paper protection zone during by the unexpected change of external electrical field; make by gauge tap between two drive electrodes of described pixel or Electronic Paper protection zone and be in low impedance state or electric conducting state; then external electrical field forms voltage difference and will reduce greatly between two drive electrodes, thereby avoids the information of described pixel or Electronic Paper protection zone to be modified.Even directly between two drive electrodes of described pixel or Electronic Paper protection zone, apply external voltage, also because low impedance state or electric conducting state prevent the external voltage short circuit modification for the information of described pixel or Electronic Paper protection zone.Be modified when needs are in never the pixel of institute protection zone, then can realize the read-only type safe Electronic Paper by the fuse that sends control signal blow out fuse holding circuit to gauge tap.
5, preferably further comprise information control unit, described information control unit is controlled the state of described electronic switch and the fuse of blow out fuse holding circuit.
By increasing the effective control of information control unit realization for the information pixels point of being protected, when upgrading, can effectively upgrade by needs, when not needing to upgrade, form protection mechanism.
6, preferably further comprise information input unit, described information control unit is according to the state of the described electronic switch of information Control of information input unit input and the fuse of blow out fuse holding circuit.
7, preferably further comprise radio-frequency antenna and radiofrequency signal processing unit; the radio-frequency information that passes through described radiofrequency signal processing unit processes from the radiofrequency signal of described radio-frequency antenna induction passes to described information control unit, and described information control unit is controlled the state of described electronic switch and the fuse of blow out fuse holding circuit according to described radio-frequency information.
8, preferably further comprise the identifying algorithm processing unit, described information control unit is controlled the state of described electronic switch and the fuse of blow out fuse holding circuit according to described identifying algorithm processing unit authentication result.
Further strengthened the pixel that needs protection or the information protection of Electronic Paper protection zone by increasing the identifying algorithm processing unit, had only access authentication to pass through to revise legally or upgrade the information protected and the fuse of blow out fuse holding circuit.
9, preferably further comprise information input unit and identifying algorithm processing unit; described identifying algorithm processing unit carries out authentication processing to the information of described input block input and obtains authentication result, and described information control unit is controlled the state of described electronic switch and the fuse of blow out fuse holding circuit according to described authentication result.
10, preferably further comprise radio-frequency antenna, radiofrequency signal processing unit and identifying algorithm processing unit; the radio-frequency information that passes through described radiofrequency signal processing unit processes from the radiofrequency signal of described radio-frequency antenna induction passes to described identifying algorithm processing unit; described identifying algorithm processing unit carries out authentication processing to described radio-frequency information and obtains authentication result, and described information control unit is controlled the state of described electronic switch and the fuse of blow out fuse holding circuit according to described authentication result.
11, preferably when the control signal of described electronic switch is low-voltage or no-voltage signal, described electronic switch makes described grid electrode and described second electrode be in low impedance state.
The protection zone or the pixel that can prevent Electronic Paper this moment under the situation that does not have power supply are changed by the external electrical field accident.
12, preferably when described electronic switch is in low impedance state, not enough so that the variation of the nonvolatile display material generation optical states between described grid electrode and described second electrode in the voltage difference between described grid electrode and described second electrode.
13, preferably described nonvolatile display material comprises one of following material layer or combination: have the microcapsules electronic ink layer of electrophoretic effect, the little cup structure thinner package rete with electrophoretic effect, screw (Gyricon) layer, have the Electronic Paper material layer of electrowetting effect, bistable cholesteric.
Beneficial effect of the present invention: technical scheme of the present invention has solved Electronic Paper effectively by external electrical field or the illegal or unexpected problem of changing of impressed voltage; the information of keeping Electronic Paper effectively and being presented; and making the display message that needs protection be in a read states when needed, the fields such as certificate, official document that are applied to for Electronic Paper provide the effective technology scheme that realizes.
Description of drawings:
Fig. 1 is the first kind of solution principle schematic that realizes the protection Pixel Information.
Fig. 2 is the principle schematic that increases information Control parts and input block on first kind of solution basis.
Fig. 3 is the principle schematic that increases information Control parts and wireless input block on first kind of solution basis.
Embodiment:
Electronic Paper is a kind of special paper, be coated with micro unit (being also referred to as pixel cell) on it with electrophoretic characteristic or electro-wetting property, these micro units have the externally following characteristic that changes optical states of electric field action, and after the optical states change, even remove extra electric field, still can keep optical states.Therefore, be actually control for the printing of Electronic Paper and be added in the external electrical field size and Orientation on each micro unit on the Electronic Paper, make each micro unit on the Electronic Paper present the optical characteristics of our needs." micro unit " has identical meanings with " pixel of Electronic Paper " among the present invention.Electronic switch described in the invention is meant the various mechanical switchs that can control by electric signal, electronic switch, micro-electromechanical switch, semiconductor switch etc.
Further describe specific embodiments of the present invention below in conjunction with accompanying drawing.
Fig. 1 is the first kind of solution principle schematic that realizes the protection Pixel Information.Electronic Paper comprises the array that a lot of pixels constitute, and each pixel comprises pixel electrode and non-volatile display material.Pixel electrode herein is also referred to as grid electrode.Pixel comprises grid first electrode 102 and grid second electrode 103 among the figure, and non-volatile display material 104 places between grid first electrode 102 and grid second electrode 103.Grid first electrode 102 has the lead 105 of first electrode drive, and grid second electrode 103 has the lead 106 of second electrode drive.When pixel is carried out electronization, apply voltage for grid first electrode 102 and grid second electrode 103 by lead 105 and lead 106, between grid first electrode 102 and grid second electrode 103, form the electric field of certain orientation, change the optical states of non-volatile display material 104, thereby present information.The present invention has increased electronic switch 101 between grid first electrode 102 and grid second electrode 103; connect the state of electronic switch with control signal wire 107 with the control electronic switch; and electronic switch 101 comprises fuse protected circuit 151; after the fuse of described fuse protected circuit 151 was fused, described electronic switch 101 was in irreversible low impedance state or electric conducting state.When electronic switch is in conducting state, present Low ESR between described grid first electrode 102 and grid second electrode 103, when on pixel, applying external electrical field, on grid first electrode 102 and grid second electrode 103, will have essentially identical current potential, thereby the potential difference (PD) between grid first electrode 102 and grid second electrode 103 is very little, therefore can prevent the change of external electrical field for pixel information; It is same when electronic switch is in conducting state; apply voltage for grid first electrode 102 and grid second electrode 103 by lead 105 and lead 106; owing to present Low ESR between grid first electrode 102 and grid second electrode 103; thereby the potential difference (PD) between grid first electrode 102 and grid second electrode 103 is very little, and the optical states that can not change the non-volatile display material 104 of pixel has reached the purpose of protection pixel information.When needs are revised pixel information, only need send control signal to control signal wire 107, make electronic switch 101 be in off-state, present high impedance between described grid first electrode 102 and grid second electrode 103 this moment, apply electric field or between described grid first electrode 102 and grid second electrode 103, apply voltage by the outside, can change the optical states of pixel.No longer be modified when needs make the information of pixel, be a read states, only need make described electronic switch 101 be in irreversible low impedance state or electric conducting state to the transmit control signal fuse of blow out fuse holding circuit 151 of electronic switch 101.A kind of preferred implementation is that control signal wire 107 is cut off with being electrically connected of electronic switch 101 behind the fuse failure, thereby makes electronic switch 101 be in irreversible low impedance state.
Fig. 2 is the principle schematic that increases information Control parts and input block on first kind of solution basis.In order to realize that the control of electronic switch 101 is checked or authenticated, information control unit 210 and information input unit 211 have been increased.Therefore information control unit 210 process informations can artificially control the state of electronic switch according to the definite control signal that sends to the control signal wire 107 of electronic switch 101 of the input information of input block 211.Particularly when information control unit 210 comprises the identifying algorithm processing unit and has authentication function, can be to input information from information input unit 211, have only by the input of authentification of message and could control electronic switch, can prevent more effectively that the pixel information of Electronic Paper from being distorted or unlawfully being modified.
Fig. 3 is the principle schematic that increases information Control parts and wireless input block on first kind of solution basis.Scheme than Fig. 2, the solution of Fig. 3 comprises information control unit 310 and wireless induction antenna 311, by wireless induction antenna 311 induction wireless electric signal input informations, information control unit 310 is handled the radio signal input information, has only correct input information could control electronic switch 101.Therefore can prevent that pixel information from illegally being distorted.
Claims (10)
1. read-only type safe single-side electronic paper is characterized in that comprising:
The first grid array electrode has independently a grid electrode and a contact conductor on each grid of the described first grid array electrode;
Nonvolatile display material;
Second electrode is public electrode;
The described first grid array electrode, nonvolatile display material and second electrode form lamination successively;
Between at least one grid electrode of the described first grid array electrode and described second electrode, an electronic switch is set, when described electronic switch was in conducting state, described electronic switch made between described grid electrode and described second electrode and is in low impedance state or electric conducting state;
Described electronic switch comprises fuse protected circuit, and after the fuse of described fuse protected circuit was fused, described electronic switch was in irreversible low impedance state or electric conducting state.
2. read-only type safe single-side electronic paper is characterized in that comprising:
The first grid array electrode has independently a grid electrode and a contact conductor on each grid of the described first grid array electrode;
Nonvolatile display material;
Second electrode is the grid array electrode, and independently a grid electrode and a contact conductor are arranged on each grid of described second electrode;
The described first grid array electrode, nonvolatile display material and second electrode form lamination successively;
Between the corresponding grid electrode of at least one grid electrode of the described first grid array electrode and described second electrode, an electronic switch is set, when described electronic switch was in conducting state, described electronic switch made between the corresponding grid electrode of described grid electrode and described second electrode and is in low impedance state or electric conducting state;
Described electronic switch comprises fuse protected circuit, and after the fuse of described fuse protected circuit was fused, described electronic switch was in irreversible low impedance state or electric conducting state.
3. read-only type safe single-side electronic paper is characterized in that comprising:
The first grid array electrode has independently a grid electrode and a contact conductor on each grid of the described first grid array electrode;
Nonvolatile display material;
Second electrode is public electrode;
The described first grid array electrode, nonvolatile display material and second electrode form lamination successively;
At least one Electronic Paper protection zone is set in described lamination, and described Electronic Paper protection zone comprises an Electronic Paper pixel at least;
The described first grid array electrode is provided with an electronic switch between each grid electrode of described Electronic Paper protection zone and described second electrode, when described electronic switch was in conducting state, described electronic switch made between described grid electrode and described second electrode and is in low impedance state or electric conducting state;
Described electronic switch comprises fuse protected circuit, and after the fuse of described fuse protected circuit was fused, described electronic switch was in irreversible low impedance state or electric conducting state.
4. read-only type safe single-side electronic paper is characterized in that comprising:
The first grid array electrode has independently a grid electrode and a contact conductor on each grid of the described first grid array electrode;
Nonvolatile display material;
Second electrode is the grid array electrode, and independently a grid electrode and a contact conductor are arranged on each grid of described second electrode;
The described first grid array electrode, nonvolatile display material and second electrode form lamination successively;
At least one Electronic Paper protection zone is set in described lamination, and described Electronic Paper protection zone comprises an Electronic Paper pixel at least;
The described first grid array electrode is provided with an electronic switch between the corresponding grid electrode of each grid electrode of described Electronic Paper protection zone and described second electrode, when described electronic switch was in conducting state, described electronic switch made between the corresponding grid electrode of described grid electrode and described second electrode and is in low impedance state or electric conducting state;
Described electronic switch comprises fuse protected circuit, and after the fuse of described fuse protected circuit was fused, described electronic switch was in irreversible low impedance state or electric conducting state.
5. according to each described read-only type safe single-side electronic paper in the claim 1 to 4; it is characterized in that further comprising information control unit and information input unit, described information control unit is according to the state of the described electronic switch of information Control of information input unit input and the fuse of blow out fuse holding circuit.
6. according to each described read-only type safe single-side electronic paper in the claim 1 to 4; it is characterized in that further comprising information control unit, radio-frequency antenna and radiofrequency signal processing unit; the described radiofrequency signal processing unit processes of radiofrequency signal process from described radio-frequency antenna induction; the radio-frequency information that obtains passes to described information control unit, and described information control unit is controlled the state of described electronic switch and the fuse of blow out fuse holding circuit according to described radio-frequency information.
7. according to each described read-only type safe single-side electronic paper in the claim 1 to 4; it is characterized in that further comprising information control unit and identifying algorithm processing unit, described information control unit is controlled the state of described electronic switch and the fuse of blow out fuse holding circuit according to described identifying algorithm processing unit authentication result.
8. according to each described read-only type safe single-side electronic paper in the claim 1 to 4; it is characterized in that further comprising information control unit, information input unit and identifying algorithm processing unit; described identifying algorithm processing unit carries out authentication processing to the information of described input block input and obtains authentication result, and described information control unit is controlled the state of described electronic switch and the fuse of blow out fuse holding circuit according to described authentication result.
9. according to each described read-only type safe single-side electronic paper in the claim 1 to 4; it is characterized in that further comprising information control unit; radio-frequency antenna; radiofrequency signal processing unit and identifying algorithm processing unit; the described radiofrequency signal processing unit processes of radiofrequency signal process from described radio-frequency antenna induction; the radio-frequency information that obtains passes to described identifying algorithm processing unit; described identifying algorithm processing unit carries out authentication processing to described radio-frequency information and obtains authentication result, and described information control unit is controlled the state of described electronic switch and the fuse of blow out fuse holding circuit according to described authentication result.
10. according to each described read-only type safe single-side electronic paper in the claim 1 to 4, it is characterized in that described nonvolatile display material comprises one of following material layer or combination: have electrophoretic effect the microcapsules electronic ink layer, have little cup structure thinner package rete, screw layer, Electronic Paper material layer, the bistable cholesteric of electrophoretic effect with electrowetting effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102415022A CN101762932B (en) | 2009-11-25 | 2009-11-25 | Read-only type safe single-side electronic paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102415022A CN101762932B (en) | 2009-11-25 | 2009-11-25 | Read-only type safe single-side electronic paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101762932A CN101762932A (en) | 2010-06-30 |
| CN101762932B true CN101762932B (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102415022A Expired - Fee Related CN101762932B (en) | 2009-11-25 | 2009-11-25 | Read-only type safe single-side electronic paper |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101201527A (en) * | 2007-12-21 | 2008-06-18 | 李博航 | Card body printing device and method containing electric papers |
| CN101464607A (en) * | 2009-01-14 | 2009-06-24 | 北京派瑞根科技开发有限公司 | Two-sided printing equipment for electronic paper |
| CN201540429U (en) * | 2009-11-26 | 2010-08-04 | 北京派瑞根科技开发有限公司 | Read-only safe one-sided flexible display paper |
-
2009
- 2009-11-25 CN CN2009102415022A patent/CN101762932B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101201527A (en) * | 2007-12-21 | 2008-06-18 | 李博航 | Card body printing device and method containing electric papers |
| CN101464607A (en) * | 2009-01-14 | 2009-06-24 | 北京派瑞根科技开发有限公司 | Two-sided printing equipment for electronic paper |
| CN201540429U (en) * | 2009-11-26 | 2010-08-04 | 北京派瑞根科技开发有限公司 | Read-only safe one-sided flexible display paper |
Non-Patent Citations (1)
| Title |
|---|
| JP平1-136130A 1989.05.29 |
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| CN101762932A (en) | 2010-06-30 |
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