CN110780756A - Handwriting screen, handwriting pen, handwriting device, control method and preparation method of handwriting device - Google Patents
Handwriting screen, handwriting pen, handwriting device, control method and preparation method of handwriting device Download PDFInfo
- Publication number
- CN110780756A CN110780756A CN201911108044.5A CN201911108044A CN110780756A CN 110780756 A CN110780756 A CN 110780756A CN 201911108044 A CN201911108044 A CN 201911108044A CN 110780756 A CN110780756 A CN 110780756A
- Authority
- CN
- China
- Prior art keywords
- handwriting
- friction
- substrate
- layer
- electrode layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 72
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000000758 substrate Substances 0.000 claims description 109
- 239000002245 particle Substances 0.000 claims description 67
- 239000000463 material Substances 0.000 claims description 26
- 230000009471 action Effects 0.000 claims description 20
- 241001422033 Thestylus Species 0.000 claims description 18
- 239000006185 dispersion Substances 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 claims description 4
- 229910002113 barium titanate Inorganic materials 0.000 claims description 4
- 239000002086 nanomaterial Substances 0.000 claims description 4
- 239000002105 nanoparticle Substances 0.000 claims description 4
- 230000008569 process Effects 0.000 description 18
- 230000008859 change Effects 0.000 description 9
- 239000010408 film Substances 0.000 description 9
- 230000005611 electricity Effects 0.000 description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000004205 dimethyl polysiloxane Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000005415 magnetization Effects 0.000 description 4
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 229920002120 photoresistant polymer Polymers 0.000 description 3
- 239000000049 pigment Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- -1 Polydimethylsiloxane Polymers 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 2
- 239000001055 blue pigment Substances 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 238000000059 patterning Methods 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- FWLHAQYOFMQTHQ-UHFFFAOYSA-N 2-N-[8-[[8-(4-aminoanilino)-10-phenylphenazin-10-ium-2-yl]amino]-10-phenylphenazin-10-ium-2-yl]-8-N,10-diphenylphenazin-10-ium-2,8-diamine hydroxy-oxido-dioxochromium Chemical compound O[Cr]([O-])(=O)=O.O[Cr]([O-])(=O)=O.O[Cr]([O-])(=O)=O.Nc1ccc(Nc2ccc3nc4ccc(Nc5ccc6nc7ccc(Nc8ccc9nc%10ccc(Nc%11ccccc%11)cc%10[n+](-c%10ccccc%10)c9c8)cc7[n+](-c7ccccc7)c6c5)cc4[n+](-c4ccccc4)c3c2)cc1 FWLHAQYOFMQTHQ-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- NRCMAYZCPIVABH-UHFFFAOYSA-N Quinacridone Chemical compound N1C2=CC=CC=C2C(=O)C2=C1C=C1C(=O)C3=CC=CC=C3NC1=C2 NRCMAYZCPIVABH-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
- AUNAPVYQLLNFOI-UHFFFAOYSA-L [Pb++].[Pb++].[Pb++].[O-]S([O-])(=O)=O.[O-][Cr]([O-])(=O)=O.[O-][Mo]([O-])(=O)=O Chemical compound [Pb++].[Pb++].[Pb++].[O-]S([O-])(=O)=O.[O-][Cr]([O-])(=O)=O.[O-][Mo]([O-])(=O)=O AUNAPVYQLLNFOI-UHFFFAOYSA-L 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 239000001000 anthraquinone dye Substances 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 125000000751 azo group Chemical group [*]N=N[*] 0.000 description 1
- IRERQBUNZFJFGC-UHFFFAOYSA-L azure blue Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[S-]S[S-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] IRERQBUNZFJFGC-UHFFFAOYSA-L 0.000 description 1
- CJOBVZJTOIVNNF-UHFFFAOYSA-N cadmium sulfide Chemical compound [Cd]=S CJOBVZJTOIVNNF-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000001962 electrophoresis Methods 0.000 description 1
- 238000005421 electrostatic potential Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000001056 green pigment Substances 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 235000019239 indanthrene blue RS Nutrition 0.000 description 1
- UHOKSCJSTAHBSO-UHFFFAOYSA-N indanthrone blue Chemical compound C1=CC=C2C(=O)C3=CC=C4NC5=C6C(=O)C7=CC=CC=C7C(=O)C6=CC=C5NC4=C3C(=O)C2=C1 UHOKSCJSTAHBSO-UHFFFAOYSA-N 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000001659 ion-beam spectroscopy Methods 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- DCYOBGZUOMKFPA-UHFFFAOYSA-N iron(2+);iron(3+);octadecacyanide Chemical compound [Fe+2].[Fe+2].[Fe+2].[Fe+3].[Fe+3].[Fe+3].[Fe+3].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-] DCYOBGZUOMKFPA-UHFFFAOYSA-N 0.000 description 1
- PXZQEOJJUGGUIB-UHFFFAOYSA-N isoindolin-1-one Chemical compound C1=CC=C2C(=O)NCC2=C1 PXZQEOJJUGGUIB-UHFFFAOYSA-N 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- MOUPNEIJQCETIW-UHFFFAOYSA-N lead chromate Chemical compound [Pb+2].[O-][Cr]([O-])(=O)=O MOUPNEIJQCETIW-UHFFFAOYSA-N 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- NYGZLYXAPMMJTE-UHFFFAOYSA-M metanil yellow Chemical group [Na+].[O-]S(=O)(=O)C1=CC=CC(N=NC=2C=CC(NC=3C=CC=CC=3)=CC=2)=C1 NYGZLYXAPMMJTE-UHFFFAOYSA-M 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 229960003351 prussian blue Drugs 0.000 description 1
- 239000013225 prussian blue Substances 0.000 description 1
- 239000001054 red pigment Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000010023 transfer printing Methods 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 235000013799 ultramarine blue Nutrition 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 239000001052 yellow pigment Substances 0.000 description 1
- 235000014692 zinc oxide Nutrition 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
- G06F3/03545—Pens or stylus
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
- G06F3/03547—Touch pads, in which fingers can move on a surface
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N1/00—Electrostatic generators or motors using a solid moving electrostatic charge carrier
- H02N1/04—Friction generators
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
Abstract
The application provides a handwriting screen, a handwriting pen, a handwriting device, a control method of the handwriting device and a preparation method of the handwriting device, wherein the handwriting screen comprises a power supply unit and a display unit, a first friction layer in the power supply unit performs telescopic motion under the control of an external magnetic field, the size of the first friction layer changes, friction charges are generated when the first friction layer is increased in size and contacts with a second friction layer, then the first electrode layer and the second electrode layer output driving currents to the display unit according to the friction charges, and handwriting corresponding to the external magnetic field is displayed by the display unit. Because this application adopts non-contact's external magnetic field to realize the handwriting and writes, consequently can avoid pressure touch-control formula handwriting pen to damage the screen to this application is supplied power for the display element through the power supply unit of self, need not additionally to add power supply unit, thereby improves handwriting device's portability.
Description
Technical Field
The invention relates to the technical field of handwriting display, in particular to a handwriting screen, a handwriting pen, a handwriting device, a control method and a preparation method of the handwriting device.
Background
With the development of display technology, handwriting devices with display functions are becoming more and more popular with users. The existing handwriting screen generally adopts a touch-control-like mode, and a writing track is sensed through the change of parameters such as pressure, capacitance and the like. On one hand, the touch mode easily causes scratch to the surface of the display screen and damages the appearance of the display screen; on the other hand, the existing handwriting screen generally needs to be additionally provided with a power supply device, so that the current handwriting device is large in size and poor in portability.
Disclosure of Invention
The invention provides a handwriting screen, a handwriting pen, a handwriting device, a control method and a preparation method thereof, which are used for avoiding damaging the screen and improving the portability of the handwriting device.
In order to solve the above problems, the present invention discloses a handwriting screen, including a first substrate and a second substrate which are oppositely disposed, and a plurality of pixel units disposed between the first substrate and the second substrate, each of the pixel units including a power supply unit and a display unit;
the power supply unit comprises a first electrode layer and a first friction layer which are stacked and arranged on the first substrate, and a second electrode layer and a second friction layer which are stacked and arranged on the second substrate, wherein the first friction layer is arranged close to the second substrate, and the second friction layer is arranged close to the first substrate;
the display unit is arranged between the exposed first electrode layer and the exposed second electrode layer;
the first friction layer comprises a magnetostrictive material, is used for performing telescopic motion under the control of an external magnetic field, is in contact with or separated from the second friction layer, and generates friction charges when the first friction layer is in contact with the second friction layer; the first electrode layer and the second electrode layer are used for generating a driving current according to the friction charges; and the display unit is used for displaying handwriting corresponding to the external magnetic field under the action of the driving current.
Optionally, the first friction layer comprises a substrate and magnetostrictive particles filled in the substrate.
Optionally, the first friction layer further comprises barium titanate nanoparticles filled in the matrix.
Optionally, the second friction layer is a metal film layer.
Optionally, the surface of the first frictional layer adjacent to the second frictional layer and/or the surface of the second frictional layer adjacent to the first frictional layer has microscopic nanostructures.
Optionally, the display unit includes a dispersion filled between the first electrode layer and the second electrode layer, positively charged first electrophoretic particles, and negatively charged second electrophoretic particles,
the first electrophoretic particles are used for displaying a dark state, and the second electrophoretic particles are used for displaying a bright state; or, the first electrophoretic particles are used for displaying a bright state, and the second electrophoretic particles are used for displaying a dark state.
Optionally, the power supply unit further comprises a buffer layer disposed between the first electrode layer and the first friction layer.
Optionally, each of the pixel units further includes a first support structure disposed between the first electrode layer and the second electrode layer, and the first support structure is insulated and used for isolating the power supply unit from the display unit.
Optionally, each of the pixel units further includes a second support structure disposed between the first substrate and the second substrate, and the second support structure is insulated to isolate each of the pixel units.
In order to solve the above problems, the present invention further discloses a stylus pen, which includes a magnetic field emission device and a magnetic field adjustment device, wherein the magnetic field adjustment device is configured to adjust the intensity of the magnetic field emitted by the magnetic field emission device according to an external input instruction.
In order to solve the above problems, the present invention further discloses a handwriting device, which includes the handwriting screen according to any embodiment and the handwriting pen according to any embodiment.
In order to solve the above problems, the present invention further discloses a method for manufacturing a handwriting screen, where the handwriting screen includes a first substrate and a second substrate that are arranged opposite to each other, and a plurality of pixel units arranged between the first substrate and the second substrate, and each pixel unit includes a power supply unit and a display unit; the preparation method of each pixel unit comprises the following steps:
sequentially forming a first electrode layer and a first friction layer on the first substrate to obtain a first substrate, wherein the first friction layer is located in a region corresponding to the power supply unit;
forming a second electrode layer on the second substrate;
forming a second friction layer on the second electrode layer in a region corresponding to the power supply unit;
forming the display unit on the exposed second electrode layer to obtain a second substrate;
the first substrate and the second substrate are aligned to obtain the pixel unit, and the display unit is located between the exposed first electrode layer and the exposed second electrode layer;
the first friction layer comprises a magnetostrictive material, is used for performing telescopic motion under the control of an external magnetic field, is in contact with or separated from the second friction layer, and generates friction charges when the first friction layer is in contact with the second friction layer; the first electrode layer and the second electrode layer are used for generating a driving current according to the friction charges; and the display unit is used for displaying handwriting corresponding to the external magnetic field under the action of the driving current.
Optionally, the step of sequentially forming a first electrode layer and a first friction layer on the first substrate to obtain a first substrate includes:
forming a first electrode layer on the first substrate;
and sequentially forming a buffer layer and a first friction layer on the first electrode layer in a region corresponding to the power supply unit to obtain a first substrate.
Optionally, after the step of forming the second electrode layer on the second substrate and before the step of forming the second friction layer on the second electrode layer in the region corresponding to the power supply unit, the method further includes:
and forming a first support structure on the second electrode layer, wherein the first support structure is insulated and used for isolating the power supply unit from the display unit.
Optionally, before the step of forming the display unit on the exposed second electrode layer, the method further includes:
forming a second support structure on the second substrate, wherein the second support structure is insulated and used for isolating each pixel unit;
the step of forming the display unit on the exposed second electrode layer includes:
forming a dispersion, positively charged first electrophoretic particles and negatively charged second electrophoretic particles on the second electrode layer in a region between the first support structure and the second support structure, wherein the first electrophoretic particles are used for displaying a dark state, and the second electrophoretic particles are used for displaying a bright state; or, the first electrophoretic particles are used for displaying a bright state, and the second electrophoretic particles are used for displaying a dark state.
In order to solve the above problem, the present invention further discloses a control method of a handwriting screen, which is applied to the handwriting screen according to any embodiment, and the control method includes:
the first friction layer performs telescopic motion under the control of an external magnetic field, is in contact with or separated from the second friction layer, and generates friction charges when the first friction layer is in contact with the second friction layer; the first electrode layer and the second electrode layer generate a driving current according to the friction charge;
and the display unit displays handwriting corresponding to the external magnetic field under the action of the driving current.
In order to solve the above problem, the present invention further discloses a control method of a stylus pen, which is applied to the stylus pen according to any embodiment, and the control method includes:
receiving an external input instruction;
and adjusting the intensity of the magnetic field emitted by the stylus pen according to the external input instruction.
In order to solve the above problem, the present invention further discloses a control method of a handwriting device, which is applied to the handwriting device according to any embodiment, and the control method includes:
the handwriting pen receives a first external input instruction;
the handwriting pen adjusts the intensity of a first magnetic field emitted by the handwriting pen according to the first external input instruction;
the first friction layer performs telescopic motion under the control of the first magnetic field, is in contact with or separated from the second friction layer, and generates a first friction charge when the first friction layer is in contact with the second friction layer;
the first electrode layer and the second electrode layer generate a first driving current according to the first friction charge;
and the display unit displays handwriting corresponding to the first magnetic field under the action of the first driving current.
Optionally, when handwriting is displayed on the handwriting screen, the control method further includes:
the handwriting pen receives a second external input instruction;
the handwriting pen adjusts the strength of a second magnetic field emitted by the handwriting pen according to the second external input instruction;
the first friction layer performs telescopic motion under the control of the second magnetic field, is in contact with or separated from the second friction layer, and generates a second friction charge when the first friction layer is in contact with the second friction layer;
the first electrode layer and the second electrode layer generate a second driving current according to the second friction charge;
and the display unit erases the handwriting under the action of the second driving current.
Compared with the prior art, the invention has the following advantages:
the technical scheme of the application provides a handwriting screen, a handwriting pen, a handwriting device, a control method and a preparation method of the handwriting device, wherein the handwriting screen comprises a first substrate and a second substrate which are arranged oppositely, and a plurality of pixel units arranged between the first substrate and the second substrate, and each pixel unit comprises a power supply unit and a display unit; the power supply unit comprises a first electrode layer and a first friction layer which are stacked on the first substrate, and a second electrode layer and a second friction layer which are stacked on the second substrate, wherein the first friction layer is arranged close to the second substrate, and the second friction layer is arranged close to the first substrate; the display unit is arranged between the exposed first electrode layer and the exposed second electrode layer; the first friction layer comprises a magnetostrictive material, is used for performing telescopic motion under the control of an external magnetic field, is in contact with or separated from the second friction layer, and generates friction charges when the first friction layer is in contact with the second friction layer; the first electrode layer and the second electrode layer are used for generating a driving current according to the friction charge; the display unit is used for displaying handwriting corresponding to the external magnetic field under the action of the driving current. According to the technical scheme, the first friction layer in the power supply unit performs telescopic motion under the control of an external magnetic field, the size of the first friction layer changes, friction charges are generated when the size of the first friction layer is increased and the first friction layer is in contact with the second friction layer, then the first electrode layer and the second electrode layer output driving current to the display unit according to the friction charges, and writing handwriting corresponding to the external magnetic field is displayed by the display unit. Because this application adopts non-contact's external magnetic field to realize the handwriting and writes, consequently can avoid pressure touch-control formula handwriting pen to damage the screen to this application is supplied power for the display element through the power supply unit of self, need not additionally to add power supply unit, thereby improves handwriting device's portability.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic cross-sectional view illustrating a first pixel unit according to an embodiment of the present disclosure;
fig. 2 is a schematic cross-sectional view illustrating a second pixel unit according to an embodiment of the present disclosure;
FIG. 3 is a schematic cross-sectional view of a handwriting screen during a writing process according to an embodiment of the present application;
FIG. 4 is a schematic cross-sectional view illustrating a handwriting screen during handwriting forming according to an embodiment of the present application;
FIG. 5 illustrates a handwriting graph displayed on a handwriting screen provided by an embodiment of the present application;
FIG. 6 is a schematic cross-sectional view of a handwriting screen during another writing process according to an embodiment of the present application;
FIG. 7 is a schematic plane structure diagram of a handwriting screen having a first pixel unit structure according to an embodiment of the present application;
FIG. 8 is a schematic structural diagram of a stylus provided in an embodiment of the present application;
FIG. 9 is a schematic diagram illustrating a handwriting device according to an embodiment of the present application;
FIG. 10 is a flowchart illustrating steps of a method for manufacturing a handwriting screen according to an embodiment of the present application;
FIG. 11a is a schematic cross-sectional view illustrating the completion of the preparation of the first substrate according to an embodiment of the present disclosure;
FIG. 11b is a schematic cross-sectional view illustrating the completion of the second substrate preparation according to one embodiment of the present disclosure;
FIG. 12 is a flowchart illustrating steps of a method for controlling a handwriting screen according to an embodiment of the present application;
FIG. 13 is a flowchart illustrating steps of a method for controlling a stylus according to an embodiment of the present application;
FIG. 14 is a flowchart illustrating steps of a method for controlling a handwriting device according to an embodiment of the present application;
FIG. 15 is a flowchart illustrating steps of a specific implementation manner of a control method of a handwriting device according to an embodiment of the present application;
fig. 16 is a flowchart illustrating steps of a specific implementation manner of a control method of a handwriting apparatus according to an embodiment of the present application.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
An embodiment of the present application provides a handwriting screen, which includes a first substrate 11 and a second substrate 12 disposed opposite to each other, and a plurality of pixel units disposed between the first substrate 11 and the second substrate 12, and each pixel unit includes a power supply unit 13 and a display unit 14, as shown in fig. 1 and 2.
The power supply unit 13 includes a first electrode layer 131 and a first friction layer 132 which are stacked and disposed on the first substrate 11, and a second electrode layer 133 and a second friction layer 134 which are stacked and disposed on the second substrate 12, the first friction layer 132 being disposed adjacent to the second substrate 12, and the second friction layer 134 being disposed adjacent to the first substrate 11.
The display unit 14 is disposed between the exposed first electrode layer 131 and the exposed second electrode layer 133. The exposed first electrode layer 131 is the first electrode layer 131 not covered by the first friction layer 132, and the exposed second electrode layer 133 is the second electrode layer 133 not covered by the second friction layer 134.
The first friction layer 132 includes a magnetostrictive material, and is configured to perform a telescopic motion under the control of an external magnetic field, and contact with or separate from the second friction layer 134, and generate a triboelectric charge when the first friction layer 132 contacts with the second friction layer 134; the first electrode layer 131 and the second electrode layer 133 are used for generating a driving current according to the triboelectric charge; the display unit 14 is used for displaying handwriting corresponding to an external magnetic field under the action of the driving current.
Fig. 1 shows a schematic cross-sectional structure of a first pixel unit, and fig. 2 shows a schematic cross-sectional structure of a second pixel unit. Each pixel unit in fig. 1 includes a power supply unit 13 and a display unit 14, and each pixel unit in fig. 2 includes a power supply unit 13 and two display units 14, that is, a single power supply unit 13 corresponds to two display units 14, and the single power supply unit 13 supplies power to at least two display units 14, so that a single contact can control a plurality of display units, the effective display area of the writing device can be increased, and the number of power supply units can be reduced. It should be noted that the structure of the pixel units is not limited to that shown in fig. 1 and fig. 2, in practical applications, each pixel unit may include at least one power supply unit 13 and at least one display unit 14, a pair of the power supply unit 13 and the display unit 14 may be one-to-many or many-to-one, and so on, the number correspondence between the power supply unit 13 and the display unit 14 may be determined according to actual requirements, and other correspondences all belong to the protection scope of this embodiment.
The first substrate 11 and the second substrate 12 may be both transparent substrates as manufacturing substrates of the display unit 14 and the power supply unit 13.
The first electrode layer 131 and the second electrode layer 133 serve as a current signal output channel of the power supply unit 13, and may be made of an electrode material such as ITO (indium tin oxide).
The first friction layer 132 is a magnetostrictive structure, and may include a substrate and magnetostrictive particles filled in the substrate. The base material may be, for example, Polydimethylsiloxane (PDMS), in this embodiment, PDMS + magnetostrictive particles are mixed as the first friction layer 132, the material of the magnetostrictive particles may be one or more of rare earth-transition metals, such as Fe — Ca magnetic material, TbFe2, DyFe2, or SmFe2, and the material of the magnetostrictive particles only needs to be capable of causing the first friction layer 132 to expand or change in volume under the control of an external magnetic field. In order to increase the amount of frictional charge, the first frictional layer 132 may further include a strong dielectric compound material filled in the base material, such as barium titanate nanoparticles, etc.
The surface of first frictional layer 132 adjacent to second frictional layer 134 and the surface of second frictional layer 134 adjacent to first frictional layer 132 may be planar, etc. In order to increase the effective friction area when first friction layer 132 is in contact with second friction layer 134, the surface of first friction layer 132 close to second friction layer 134 and/or the surface of second friction layer 134 close to first friction layer 132 may have a microscopic nanostructure, and the amount of charge generated by friction induction may be increased by increasing the effective friction area. Wherein, the microscopic nano-structure can be formed by adopting a mould casting forming mode.
The power supply unit 13 may further include a buffer layer 135 disposed between the first electrode layer 131 and the first friction layer 132. The buffer layer 135 is provided to facilitate carrier and charge transfer, and may be a metal nitride layer, such as aluminum nitride.
In order to isolate the power supply unit 13 from the display unit 14, the pixel unit may further include a first support structure 15 disposed between the first electrode layer 131 and the second electrode layer 133, the first support structure 15 is insulating, and the material may be a high molecular polymer. The first support structure 15 may also provide support during power supply to prevent the power supply unit during writing from interfering with the other power supply units and the thickness of the display unit, and may be made of an elastic polymer.
In order to isolate the pixel units, each pixel unit may further include a second support structure 16 disposed between the first substrate 11 and the second substrate 12, the second support structure 16 is insulated and used as an encapsulation isolation structure for each pixel unit to avoid interference between adjacent pixel units, and the second support structure 16 may be disposed in a trapezoid, column, or other structure and is prepared by a photoresist exposure and development method.
The display unit 14 may be a liquid crystal display unit, an electrophoretic display unit, or the like, and any display device capable of displaying under the action of a driving current is within the scope of the present embodiment. The present embodiment is described by taking an electrophoretic display unit as an example.
Specifically, the display unit 14 may include a dispersion 141 filled between the first electrode layer 131 and the second electrode layer 133, a positively charged first electrophoretic particle 142, and a negatively charged second electrophoretic particle 143, wherein the first electrophoretic particle 142 is used to display a dark state, and the second electrophoretic particle 143 is used to display a bright state; alternatively, the first electrophoretic particles 142 are used to display a bright state, and the second electrophoretic particles 143 are used to display a dark state.
As shown in fig. 1 or 2, the display unit includes black first electrophoretic particles 142 (the material may be carbon black for displaying a dark state), white second electrophoretic particles 143 (the material may be titanium dioxide, silicon dioxide, or the like for displaying a bright state), and a dispersion liquid 141.
The electrophoretic particles are particles (polymer or colloid) having the following properties: the dispersion liquid 141 is subjected to electrophoresis based on a potential difference, and is moved to a desired electrode side. For example, black pigments such as aniline black and carbon black, white pigments such as titanium dioxide, zinc white, antimony trioxide and aluminum oxide, azo pigments such as monoazo, disazo and polyazo, yellow pigments such as isoindolinone, chrome yellow, yellow iron oxide, cadmium yellow, titanium yellow and antimony, red pigments such as quinacridone red and chrome vermilion, blue pigments such as phthalocyanine blue, indanthrone blue, anthraquinone dyes, prussian blue, ultramarine blue and cobalt blue, and green pigments such as phthalocyanine green.
The dispersion liquid 141 is used for preventing agglomeration between the positive and negative electrophoretic particles, and may be an organic solvent such as aromatic hydrocarbon, epoxy compound, halogenated hydrocarbon, aliphatic hydrocarbon, siloxane, etc. When an electric field is applied, electrophoretic particles with different electric properties in the dispersion liquid 141 can undergo electrophoretic migration; when the electric field is removed, certain interaction still exists between the electrophoretic particles with different electric properties, so that the electrophoretic particles can be maintained in the state before the electric field is removed and do not change, and the bistable display is realized.
The diameter of the electrophoretic particles can be in a range of 0.1-10 um, and the electrophoretic particles in the display unit can be moved to perform display switching by changing the polarities of the first electrode layer 131 and the second electrode layer 133.
During writing, the first and second friction layers 132 and 134 in the power supply unit generate electricity by friction, and supply a driving current to the display unit through the first and second electrode layers 131 and 133. The triboelectrification is a technology for generating induced charges through contact friction of the surface of a thin film material, and further forming feedback current. When two film materials are in physical contact, due to the difference of electric polarities, the material with strong electron capacity attracts electrons from the material with weak electron capacity, so that two contact surfaces carry charges with equal quantity and different signs, namely tribo-charges. Once the two film materials are separated by an external force, a potential difference is generated between the two contact surfaces. If the back electrodes of these two materials (e.g., the first electrode layer 131 and the second electrode layer 133 in this embodiment) are connected by a load, the potential difference will cause electrons to flow between the two electrodes to balance the electrostatic potential difference between the films. Once the two contact surfaces are again brought into register, the potential difference created by the triboelectric charge disappears, causing the electrons to flow in the opposite direction. The power supply unit provided by the embodiment is a self-powered device, which can directly collect small energy changes from the environment and convert the small energy changes into electric energy, and is a sustainable and energy-saving scheme.
Referring to fig. 3, a schematic cross-sectional view of a handwriting screen during a writing process is shown. In the writing process, a stylus pen may be used to emit an external magnetic field and change the strength of the external magnetic field, so as to realize a magnetization effect on the magnetostrictive particles in the first friction layer 132, so that the first friction layer 132 undergoes a volume change, as shown in the dotted line in fig. 3, when in a writing state, the magnetostrictive particles in the power supply unit are excited by the magnetic field to undergo a volume deformation, the lower surface of the first friction layer 132 frictionally contacts with the upper surface of the second friction layer 134 to generate a frictional charge, when the stylus pen leaves the power supply unit, the magnetic field disappears, the volume of the first friction layer 132 decreases, the first friction layer 132 is separated from the second friction layer 134, and due to the relationship between the material polarity and the potential difference, the first electrode layer 131 is negatively charged, the second electrode layer 133 is positively charged to form a driving current, and the driving current is transmitted to the display unit through the first electrode layer 131 and the second electrode layer 133, and adsorbing the charged electrophoretic particles in the display unit (the black first electrophoretic particles are positively charged and the white second electrophoretic particles are negatively charged) to form handwriting display and retention.
In the initial state (non-writing state), a certain gap exists between the first friction layer 132 and the second friction layer 134, and the gap can be determined according to the initial film preparation thickness, and can be set to 0.5-10 um, for example. In the writing state, the first friction layer 132 corresponding to the position of the stylus contact point changes in volume and contacts with the second friction layer 134 to form friction charge and output driving current, so as to supply power to the display unit for display. The quantity of the electrophoretic particles adsorbed by the first electrode layer 131 and the second electrode layer 133 in the display unit depends on the magnitude of the driving current (feedback current) of the power supply unit, and the power supply unit of the embodiment can realize different feedback currents according to the magnitude of an external magnetic field, so that the thickness of handwriting can be adjusted, and the definition of the handwriting can be improved.
The first friction layer 132 may further include 20 wt% of barium titanate nanoparticles filled in the base material, such that a driving voltage of 10-15V (-10-15V) and a driving voltage of 10-25 μ A/cm can be achieved
2The driving current density, the driving voltage and the driving current value can ensure the movement and the adsorption of the electrophoretic particles.
Referring to fig. 4, a schematic cross-sectional structure of a handwriting screen during handwriting forming is shown. When the handwriting pen starts to write on the handwriting screen, the internal material of the first friction layer 132 at the corresponding position generates a magnetization effect and expands in volume, contacts with the second friction layer 134 and generates electricity through nanometer friction, and when the handwriting pen is moved, the handwriting pen can generate electricity through friction between the first friction layer 132 and the second friction layer 134 at the corresponding position in a passing area, so that the handwriting display and the handwriting maintenance are realized. Referring to fig. 5, a diagram of handwriting displayed on a handwriting screen is shown.
Referring to fig. 6, a schematic cross-sectional view of a handwriting screen during another writing process is shown. Compared with fig. 3, the dotted line in fig. 6 shows that a low-intensity external magnetic field is used, and at this time, the frictional charges generated between the first friction layer 132 and the second friction layer 134 are less, and the power supply unit forms a smaller feedback current, which is transmitted to the upper and lower electrode layers in the display unit, so that fewer electrophoretic particles (black particles in the figure) are adsorbed, and a finer handwriting is obtained. Therefore, different display modes can be realized by changing the magnitude of the external magnetic field.
When handwriting is displayed on the handwriting screen, an external magnetic field can be applied to the handwriting screen to erase the handwriting. For example, a stylus pen may be used to pass through the handwriting area again to trigger the magnetic nano-friction process again, and at this time, since the first friction layer 132 and the second friction layer 134 are both charged, the first electrode layer 131 is charged with positive charges and the second electrode layer 133 is charged with negative charges after contact and friction are performed again. The polarity of the upper electrode layer and the lower electrode layer of the display unit is changed, and according to the principle of same polarity attraction, the positively charged black particles move reversely and are repelled to the lower side of the negatively charged white particles, so that the erasing of the handwriting is realized. The technical proposal can realize the function of local erasing, and has simple method and easy realization.
Referring to fig. 7, a schematic plan view of a handwriting screen having a first pixel cell structure is shown. The handwriting screen comprises a plurality of pixel units arranged in an array, and each pixel unit comprises a display unit 14 and a power supply unit 13. The pixel units are isolated and packaged by adopting a second supporting structure 16, and the display unit 14 and the power supply unit 13 are isolated by adopting a first supporting structure 15.
According to the handwriting screen provided by the embodiment, the first friction layer in the power supply unit performs telescopic motion under the control of an external magnetic field, the volume changes, friction charges are generated when the volume of the first friction layer is increased and the first friction layer is in contact with the second friction layer, then the first electrode layer and the second electrode layer output driving current to the display unit according to the friction charges, and handwriting corresponding to the external magnetic field is displayed by the display unit. Because this application adopts non-contact's external magnetic field to realize handwriting and writes, consequently can avoid pressure touch-control formula handwriting pen to damage the screen to this application is supplied power for the display element through the power supply unit of self, need not additionally to add power supply unit, and magnetic induction power supply unit is integrated with the display element, realizes the integration, can realize self-powered display, improves handwriting device's portability.
The handwriting screen provided by the embodiment has the functions of self power supply, writing track display, local erasing and the like. Based on the magnetization phenomenon of the magnetostrictive material in the magnetic field environment, the self length is further caused to stretch and change of the volume, the first friction layer in the power supply unit is triggered to be in contact friction with the second friction layer, magnetic control electricity generation is achieved, driving current is formed through the electrode layer and is transmitted to the display unit, and the display unit displays and keeps the writing. The magnetostrictive strength is controlled according to the strength of an external magnetic field to form different driving currents, so that the thickness of the handwriting can be realized, and partial erasing can be realized when the handwriting passes through the handwriting again.
Referring to fig. 8, the stylus pen may include a magnetic field emitting device 81 and a magnetic field adjusting device 82, where the magnetic field adjusting device 82 is configured to adjust the intensity of the magnetic field emitted by the magnetic field emitting device 81 according to an external input instruction.
In a specific implementation, the magnetic field emitting device 81 may be disposed inside the pen body, and the magnetic field adjusting device 82 may be an external knob on the stylus pen, or the like.
When the magnetic field adjusting device 82 is a knob externally arranged on the stylus pen, the external input instruction may be a rotation operation of the knob by a user, so that the user can adjust the intensity of the magnetic field emitted by the magnetic field emitting device 81 through the magnetic field adjusting device 82, change the intensity of the external magnetic field applied to the handwriting screen, realize a magnetization effect on the first friction layer of the handwriting screen, and enable the first friction layer to generate volume change, so as to generate electricity by friction with the second friction layer.
In order to increase the handwriting erasing area, the magnetic field emission device 81 can be increased in area, and therefore, the magnetic field emission device 81 can be arranged inside a thicker cap (as shown in fig. 8) or inside a pen body.
Another embodiment of the present application provides a handwriting device, and referring to fig. 9, the handwriting device includes the handwriting screen according to any embodiment and the handwriting pen according to any embodiment.
The handwriting device provided by the embodiment can realize the functions of self power supply, handwriting keeping and local erasing, has a simple structure, is easy to realize, can be widely applied to the field of electronic writing boards, and belongs to the cross fusion of a sensing device and a display technology.
Another embodiment of the present application provides a method for manufacturing a handwriting screen, where the handwriting screen includes a first substrate and a second substrate that are disposed opposite to each other, and a plurality of pixel units disposed between the first substrate and the second substrate, each pixel unit includes a power supply unit and a display unit, and referring to fig. 10, the method for manufacturing each pixel unit includes:
step 1001: and sequentially forming a first electrode layer and a first friction layer on the first substrate to obtain a first substrate, wherein the first friction layer is positioned in the area corresponding to the power supply unit.
Wherein the first substrate may be a transparent substrate.
Specifically, a first electrode layer may be first formed over a first substrate; and then sequentially forming a buffer layer and a first friction layer on the first electrode layer in a region corresponding to the power supply unit to obtain a first substrate.
The first electrode layer may be formed using a patterning process.
The first friction layer can be formed through a film pressing forming process, can be formed through the film pressing forming process in a vacuum environment, and is solidified under the protection of argon after the film pressing forming process is formed, so that the quality and the reliability of the formed magnetostrictive material layer can be improved. In this embodiment, Fe-Ca magnetic material particles are selected and mixed with PDMS substrate, ion beam sputtering deposition method is adopted, and a stable magnetic field with a magnetic field strength of 50-100 mT is applied to prepare a 0.1-5 um thick film, and the magnetostriction coefficient range of 50-200 ppm can be prepared according to the stable magnetic field strength.
Referring to fig. 11a, a schematic cross-sectional structure of the completed first substrate is shown.
Step 1002: a second electrode layer is formed on the second substrate.
Wherein the second substrate may be a transparent substrate.
The second electrode layer may be formed using a patterning process.
In a specific implementation, after the second electrode layer is manufactured, the method may further include: and forming a first support structure on the second electrode layer, wherein the first support structure is insulated and used for isolating the power supply unit from the display unit.
And preparing a first support structure on the second electrode layer, wherein the first support structure is an insulating material, such as a high-molecular polymer, and can be prepared by a transfer printing method or a photoresist exposure developing method.
Step 1003: and forming a second friction layer on the second electrode layer in a region corresponding to the power supply unit.
Specifically, the second friction layer may be prepared between the first support structures by a vacuum evaporation method, for example, using a metal material of copper or aluminum.
Step 1004: and forming a display unit on the exposed second electrode layer to obtain a second substrate.
In a specific implementation, step 1004 may further include: and forming a second support structure on the second substrate, wherein the second support structure is insulated and used for isolating each pixel unit.
The second support structure can be prepared by adopting a photoresist exposure and development mode.
Specifically, a dispersion, positively charged first electrophoretic particles and negatively charged second electrophoretic particles may be formed on the exposed second electrode layer in a region between the first support structure and the second support structure, where the first electrophoretic particles are used for displaying a dark state and the second electrophoretic particles are used for displaying a bright state; or the first electrophoretic particles are used for displaying a bright state, and the second electrophoretic particles are used for displaying a dark state.
Referring to fig. 11b, a schematic cross-sectional structure of the completed second substrate is shown.
Step 1005: the first substrate and the second substrate are aligned to obtain a pixel unit, and the display unit is located between the exposed first electrode layer and the exposed second electrode layer; the first friction layer comprises a magnetostrictive material, is used for performing telescopic motion under the control of an external magnetic field, is in contact with or separated from the second friction layer, and generates friction charges when the first friction layer is in contact with the second friction layer; the first electrode layer and the second electrode layer are used for generating a driving current according to the friction charge; the display unit is used for displaying handwriting corresponding to the external magnetic field under the action of the driving current.
The first substrate and the second substrate complete the packaging of the whole handwriting screen after the box is aligned, and the thickness of the whole handwriting screen can be between 0.5 mm and 1 mm.
By adopting the preparation method provided by the embodiment, the handwriting screen in any embodiment can be prepared.
Another embodiment of the present application provides a control method of a handwriting screen, and referring to fig. 12, the control method may include:
step 1201: the first friction layer performs telescopic motion under the control of an external magnetic field, is in contact with or separated from the second friction layer, and generates friction charges when the first friction layer is in contact with the second friction layer.
Step 1202: the first electrode layer and the second electrode layer generate a driving current according to the frictional charge.
Step 1203: the display unit displays handwriting corresponding to the external magnetic field under the action of the driving current.
The control method provided in this embodiment may be applied to the handwriting screen described in any of the above embodiments, and the specific control principle and working process have been described in detail in the handwriting screen embodiment, and are not described herein again.
Another embodiment of the present application provides a control method of a stylus pen, and referring to fig. 13, the control method includes:
step 1301: and receiving an external input instruction.
In particular, this step may be performed by the magnetic field adjustment device 82.
Step 1302: and adjusting the intensity of the magnetic field emitted by the stylus pen according to an external input instruction.
In particular, this step may be performed by the magnetic field emission means 81.
The control method provided by this embodiment may be applied to the stylus pen described in any of the above embodiments, and the specific control principle and working process have been described in detail in the stylus pen embodiment, and are not described herein again.
Another embodiment of the present application provides a control method of a handwriting apparatus, and referring to fig. 14, the control method includes:
step 1401: the handwriting pen receives a first external input instruction.
Step 1402: and the stylus pen adjusts the strength of the first magnetic field emitted by the stylus pen according to the first external input instruction.
Step 1403: the first friction layer performs telescopic motion under the control of the first magnetic field, is in contact with or separated from the second friction layer, and generates a first friction charge when the first friction layer is in contact with the second friction layer.
Step 1404: the first electrode layer and the second electrode layer generate a first driving current according to the first triboelectric charges.
Step 1405: the display unit displays handwriting corresponding to the first magnetic field under the action of the first driving current.
In one implementation, when the handwriting is displayed on the handwriting screen, referring to fig. 15, the control method further includes:
step 1501: the stylus receives a second external input command.
Step 1502: and the stylus pen adjusts the strength of the second magnetic field emitted by the stylus pen according to the second external input instruction.
Step 1503: the first friction layer performs telescopic motion under the control of the second magnetic field, is in contact with or separated from the second friction layer, and generates second friction charges when the first friction layer is in contact with the second friction layer.
Step 1504: the first electrode layer and the second electrode layer generate a second driving current according to the second triboelectric charges.
Step 1505: and the display unit erases the handwriting under the action of the second driving current.
Referring to fig. 16, a flowchart of a control method of a handwriting apparatus is shown. Firstly, the handwriting process is started by starting the electromagnetic handwriting pen, the magnetic field emission device is controlled by the magnetic field adjusting device in the handwriting pen to emit different magnetic field strengths, the volume change of the first friction layer in the power supply unit is controlled, the first friction layer and the second friction layer are rubbed to form driving current, the driving current is transmitted to the display unit through the first electrode layer and the second electrode layer, electrophoretic particles (the diameter of the electrophoretic particles is 0.1-10 um) are adsorbed according to the polarity and the direction, and handwriting is formed and kept. When the handwriting pen performs electromagnetic writing along the original handwriting again, reverse charges are generated at the moment and are transmitted to the display unit, the electrophoretic particles move reversely, and the original handwriting is erased.
The control method provided by this embodiment may be applied to the handwriting device described in any of the above embodiments, and the specific control principle and working process have been described in detail in the embodiments of the handwriting screen and the handwriting pen, and are not described herein again.
According to the technical scheme, the self-powered writing display and local erasing functions can be achieved, the magnetic friction power generation is effectively utilized to supply power to the display unit, a power supply is not required to be additionally arranged, the display and the keeping of writing can be achieved through the built-in power supply unit, the local erasing function can be achieved through magnetic touch once more, the limitations of the traditional pressure induction type and the additional arrangement of the power supply unit are reduced, and the technical proposal is simple in structure and easy to manufacture.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the use of the phrase "comprising a. -. said" to define an element does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
The handwriting screen, the handwriting pen, the handwriting device, the control method and the preparation method thereof provided by the invention are described in detail, a specific example is applied in the text to explain the principle and the implementation mode of the invention, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (19)
1. A handwriting screen is characterized by comprising a first substrate, a second substrate and a plurality of pixel units, wherein the first substrate and the second substrate are arranged oppositely, the plurality of pixel units are arranged between the first substrate and the second substrate, and each pixel unit comprises a power supply unit and a display unit;
the power supply unit comprises a first electrode layer and a first friction layer which are stacked and arranged on the first substrate, and a second electrode layer and a second friction layer which are stacked and arranged on the second substrate, wherein the first friction layer is arranged close to the second substrate, and the second friction layer is arranged close to the first substrate;
the display unit is arranged between the exposed first electrode layer and the exposed second electrode layer;
the first friction layer comprises a magnetostrictive material, is used for performing telescopic motion under the control of an external magnetic field, is in contact with or separated from the second friction layer, and generates friction charges when the first friction layer is in contact with the second friction layer; the first electrode layer and the second electrode layer are used for generating a driving current according to the friction charges; and the display unit is used for displaying handwriting corresponding to the external magnetic field under the action of the driving current.
2. The handwriting screen of claim 1, wherein said first friction layer comprises a substrate and magnetostrictive particles filled in said substrate.
3. The handwriting screen of claim 2, wherein the first friction layer further comprises barium titanate nanoparticles filled in the substrate.
4. A handwriting screen according to claim 1, characterised in that said second rubbing layer is a metal film layer.
5. A handwriting screen according to claim 1, characterised in that the surface of said first friction layer close to said second friction layer and/or the surface of said second friction layer close to said first friction layer has microscopic nanostructures.
6. A handwriting screen according to claim 1, characterised in that said display unit comprises a dispersion filled between said first electrode layer and said second electrode layer, positively charged first electrophoretic particles and negatively charged second electrophoretic particles,
the first electrophoretic particles are used for displaying a dark state, and the second electrophoretic particles are used for displaying a bright state; or, the first electrophoretic particles are used for displaying a bright state, and the second electrophoretic particles are used for displaying a dark state.
7. The handwriting screen of any of claims 1 to 6, wherein said power supply unit further comprises a buffer layer disposed between said first electrode layer and said first friction layer.
8. The handwriting screen of any one of claims 1 to 6, wherein each pixel cell further comprises a first support structure disposed between the first electrode layer and the second electrode layer, the first support structure being insulating for isolating the power supply unit from the display unit.
9. The handwriting screen of any one of claims 1 to 6, wherein each said pixel cell further comprises a second support structure disposed between said first substrate and said second substrate, said second support structure being insulating for isolating each said pixel cell.
10. The stylus pen is characterized by comprising a magnetic field emission device and a magnetic field adjusting device, wherein the magnetic field adjusting device is used for adjusting the intensity of a magnetic field emitted by the magnetic field emission device according to an external input instruction.
11. Handwriting apparatus, characterized in that it comprises a handwriting screen according to any of claims 1 to 9 and a stylus according to claim 10.
12. The preparation method of the handwriting screen is characterized in that the handwriting screen comprises a first substrate, a second substrate and a plurality of pixel units, wherein the first substrate and the second substrate are arranged oppositely, the plurality of pixel units are arranged between the first substrate and the second substrate, and each pixel unit comprises a power supply unit and a display unit; the preparation method of each pixel unit comprises the following steps:
sequentially forming a first electrode layer and a first friction layer on the first substrate to obtain a first substrate, wherein the first friction layer is located in a region corresponding to the power supply unit;
forming a second electrode layer on the second substrate;
forming a second friction layer on the second electrode layer in a region corresponding to the power supply unit;
forming the display unit on the exposed second electrode layer to obtain a second substrate;
the first substrate and the second substrate are aligned to obtain the pixel unit, and the display unit is located between the exposed first electrode layer and the exposed second electrode layer;
the first friction layer comprises a magnetostrictive material, is used for performing telescopic motion under the control of an external magnetic field, is in contact with or separated from the second friction layer, and generates friction charges when the first friction layer is in contact with the second friction layer; the first electrode layer and the second electrode layer are used for generating a driving current according to the friction charges; and the display unit is used for displaying handwriting corresponding to the external magnetic field under the action of the driving current.
13. The method according to claim 12, wherein the step of forming a first electrode layer and a first rubbing layer on the first substrate in this order to obtain a first substrate comprises:
forming a first electrode layer on the first substrate;
and sequentially forming a buffer layer and a first friction layer on the first electrode layer in a region corresponding to the power supply unit to obtain a first substrate.
14. The manufacturing method according to claim 12, further comprising, after the step of forming a second electrode layer on the second substrate and before the step of forming a second friction layer on a region of the second electrode layer corresponding to the power supply unit:
and forming a first support structure on the second electrode layer, wherein the first support structure is insulated and used for isolating the power supply unit from the display unit.
15. The method according to claim 14, further comprising, before the step of forming the display unit on the exposed second electrode layer:
forming a second support structure on the second substrate, wherein the second support structure is insulated and used for isolating each pixel unit;
the step of forming the display unit on the exposed second electrode layer includes:
forming a dispersion, positively charged first electrophoretic particles and negatively charged second electrophoretic particles on the second electrode layer in a region between the first support structure and the second support structure, wherein the first electrophoretic particles are used for displaying a dark state, and the second electrophoretic particles are used for displaying a bright state; or, the first electrophoretic particles are used for displaying a bright state, and the second electrophoretic particles are used for displaying a dark state.
16. A control method of a handwriting screen, applied to the handwriting screen according to any one of claims 1 to 9, comprising:
the first friction layer performs telescopic motion under the control of an external magnetic field, is in contact with or separated from the second friction layer, and generates friction charges when the first friction layer is in contact with the second friction layer;
the first electrode layer and the second electrode layer generate a driving current according to the friction charge;
and the display unit displays handwriting corresponding to the external magnetic field under the action of the driving current.
17. A control method of a stylus pen, applied to the stylus pen of claim 10, the control method comprising:
receiving an external input instruction;
and adjusting the intensity of the magnetic field emitted by the stylus pen according to the external input instruction.
18. A control method of a handwriting apparatus, applied to the handwriting apparatus of claim 11, the control method comprising:
the handwriting pen receives a first external input instruction;
the handwriting pen adjusts the intensity of a first magnetic field emitted by the handwriting pen according to the first external input instruction;
the first friction layer performs telescopic motion under the control of the first magnetic field, is in contact with or separated from the second friction layer, and generates a first friction charge when the first friction layer is in contact with the second friction layer;
the first electrode layer and the second electrode layer generate a first driving current according to the first friction charge;
and the display unit displays handwriting corresponding to the first magnetic field under the action of the first driving current.
19. The control method according to claim 18, wherein when handwriting is displayed on the handwriting screen, the control method further comprises:
the handwriting pen receives a second external input instruction;
the handwriting pen adjusts the strength of a second magnetic field emitted by the handwriting pen according to the second external input instruction;
the first friction layer performs telescopic motion under the control of the second magnetic field, is in contact with or separated from the second friction layer, and generates a second friction charge when the first friction layer is in contact with the second friction layer;
the first electrode layer and the second electrode layer generate a second driving current according to the second friction charge;
and the display unit erases the handwriting under the action of the second driving current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911108044.5A CN110780756B (en) | 2019-11-13 | 2019-11-13 | Handwriting screen, handwriting pen, handwriting device, control method of handwriting device and preparation method of handwriting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911108044.5A CN110780756B (en) | 2019-11-13 | 2019-11-13 | Handwriting screen, handwriting pen, handwriting device, control method of handwriting device and preparation method of handwriting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110780756A true CN110780756A (en) | 2020-02-11 |
| CN110780756B CN110780756B (en) | 2023-12-12 |
Family
ID=69390869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911108044.5A Active CN110780756B (en) | 2019-11-13 | 2019-11-13 | Handwriting screen, handwriting pen, handwriting device, control method of handwriting device and preparation method of handwriting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110780756B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111403445A (en) * | 2020-03-23 | 2020-07-10 | 京东方科技集团股份有限公司 | Display panel and manufacturing method thereof |
| CN112782901A (en) * | 2021-01-28 | 2021-05-11 | 福州大学 | Self-powered nonvolatile display device |
| CN113075830A (en) * | 2021-04-15 | 2021-07-06 | 合肥京东方卓印科技有限公司 | Magnetic handwriting screen and manufacturing method thereof |
| CN113552971A (en) * | 2021-08-11 | 2021-10-26 | 京东方科技集团股份有限公司 | Liquid crystal handwriting board system and erasing method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1756985A (en) * | 2003-01-08 | 2006-04-05 | 希毕克斯影像有限公司 | Improved electronic whiteboard using electrophoretic display |
| CN101308301A (en) * | 2007-05-17 | 2008-11-19 | 株式会社半导体能源研究所 | Liquid crystal display device |
| CN102156557A (en) * | 2011-04-12 | 2011-08-17 | 中兴通讯股份有限公司 | Handwriting pen, mobile terminal and method for operating on mobile terminal by using handwriting pen |
| CN201965567U (en) * | 2011-04-02 | 2011-09-07 | 周佳 | Electromagnetic stylus |
| CN201974769U (en) * | 2010-12-03 | 2011-09-14 | 周佳 | Multifunctional handwriting pen and multifunctional handwriting system |
| US20130155490A1 (en) * | 2011-08-03 | 2013-06-20 | Boe Technology Group Co., Ltd. | Electronic handwriting screen |
| TW201809820A (en) * | 2016-06-24 | 2018-03-16 | 半導體能源研究所股份有限公司 | Display device and electronic device |
-
2019
- 2019-11-13 CN CN201911108044.5A patent/CN110780756B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1756985A (en) * | 2003-01-08 | 2006-04-05 | 希毕克斯影像有限公司 | Improved electronic whiteboard using electrophoretic display |
| CN101308301A (en) * | 2007-05-17 | 2008-11-19 | 株式会社半导体能源研究所 | Liquid crystal display device |
| CN201974769U (en) * | 2010-12-03 | 2011-09-14 | 周佳 | Multifunctional handwriting pen and multifunctional handwriting system |
| CN201965567U (en) * | 2011-04-02 | 2011-09-07 | 周佳 | Electromagnetic stylus |
| CN102156557A (en) * | 2011-04-12 | 2011-08-17 | 中兴通讯股份有限公司 | Handwriting pen, mobile terminal and method for operating on mobile terminal by using handwriting pen |
| US20130155490A1 (en) * | 2011-08-03 | 2013-06-20 | Boe Technology Group Co., Ltd. | Electronic handwriting screen |
| TW201809820A (en) * | 2016-06-24 | 2018-03-16 | 半導體能源研究所股份有限公司 | Display device and electronic device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111403445A (en) * | 2020-03-23 | 2020-07-10 | 京东方科技集团股份有限公司 | Display panel and manufacturing method thereof |
| CN111403445B (en) * | 2020-03-23 | 2023-04-18 | 京东方科技集团股份有限公司 | Display panel and manufacturing method thereof |
| CN112782901A (en) * | 2021-01-28 | 2021-05-11 | 福州大学 | Self-powered nonvolatile display device |
| CN112782901B (en) * | 2021-01-28 | 2024-04-02 | 福州大学 | Self-powered nonvolatile display device |
| CN113075830A (en) * | 2021-04-15 | 2021-07-06 | 合肥京东方卓印科技有限公司 | Magnetic handwriting screen and manufacturing method thereof |
| CN113552971A (en) * | 2021-08-11 | 2021-10-26 | 京东方科技集团股份有限公司 | Liquid crystal handwriting board system and erasing method |
| CN113552971B (en) * | 2021-08-11 | 2024-01-23 | 京东方科技集团股份有限公司 | Liquid crystal handwriting board system and erasing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110780756B (en) | 2023-12-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110780756A (en) | Handwriting screen, handwriting pen, handwriting device, control method and preparation method of handwriting device | |
| US9046733B2 (en) | E-paper printing system | |
| EP1095354B1 (en) | Method and apparatus for sensing the state of an electrophoretic display | |
| JP4862311B2 (en) | Image display device | |
| JP2003098555A (en) | Field addressable rewritable media | |
| KR101061902B1 (en) | Display device using photonic crystal characteristics | |
| JP2022172363A (en) | Pressure sensitive writing media having electrophoretic material | |
| JP4397157B2 (en) | Image display device | |
| US20230048575A1 (en) | Electro-optic media and writable display incorporating the same | |
| JP4562376B2 (en) | Display device | |
| US20180157143A1 (en) | Electrophoretic display panel | |
| JP2002014380A (en) | Image forming device | |
| KR100662198B1 (en) | E-paper display | |
| KR20060091540A (en) | Particle for e-paper and preparation method thereof | |
| JP2008175973A (en) | Electrophoretic display medium and electrophoresis display device | |
| JP2015191037A (en) | display device and electronic equipment | |
| US11809649B2 (en) | Electronic ink screen and method for manufacturing the same | |
| JP2004045518A (en) | Image display device | |
| CN113075830A (en) | Magnetic handwriting screen and manufacturing method thereof | |
| KR20110075549A (en) | Magnetophoretic display device | |
| JP6286180B2 (en) | Display device and display method | |
| CN206421121U (en) | A kind of liquid crystal display device | |
| JP6110725B2 (en) | Image display device | |
| WO2016190136A1 (en) | Display device | |
| JP2001051625A (en) | Display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |