CN109254469A - A kind of electrophoretic display device (EPD) - Google Patents
A kind of electrophoretic display device (EPD) Download PDFInfo
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- CN109254469A CN109254469A CN201811154349.5A CN201811154349A CN109254469A CN 109254469 A CN109254469 A CN 109254469A CN 201811154349 A CN201811154349 A CN 201811154349A CN 109254469 A CN109254469 A CN 109254469A
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- CN
- China
- Prior art keywords
- excitation
- electrophoretic display
- epd
- display device
- color material
- Prior art date
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- Pending
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- 239000000463 material Substances 0.000 claims abstract description 97
- 230000005284 excitation Effects 0.000 claims abstract description 81
- 238000001962 electrophoresis Methods 0.000 claims abstract description 37
- 239000002245 particle Substances 0.000 claims abstract description 34
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- 239000000945 filler Substances 0.000 claims abstract description 14
- 239000007787 solid Substances 0.000 claims abstract description 14
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 claims description 25
- 239000003094 microcapsule Substances 0.000 claims description 18
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- 239000005725 8-Hydroxyquinoline Substances 0.000 claims description 8
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- MCJGNVYPOGVAJF-UHFFFAOYSA-N quinolin-8-ol Chemical compound C1=CN=C2C(O)=CC=CC2=C1 MCJGNVYPOGVAJF-UHFFFAOYSA-N 0.000 claims description 8
- 239000002585 base Substances 0.000 claims description 6
- CYIDZMCFTVVTJO-UHFFFAOYSA-N pyromellitic acid Chemical compound OC(=O)C1=CC(C(O)=O)=C(C(O)=O)C=C1C(O)=O CYIDZMCFTVVTJO-UHFFFAOYSA-N 0.000 claims description 6
- PQMOXTJVIYEOQL-UHFFFAOYSA-N Cumarin Natural products CC(C)=CCC1=C(O)C(C(=O)C(C)CC)=C(O)C2=C1OC(=O)C=C2CCC PQMOXTJVIYEOQL-UHFFFAOYSA-N 0.000 claims description 5
- 206010011732 Cyst Diseases 0.000 claims description 5
- FSOGIJPGPZWNGO-UHFFFAOYSA-N Meomammein Natural products CCC(C)C(=O)C1=C(O)C(CC=C(C)C)=C(O)C2=C1OC(=O)C=C2CCC FSOGIJPGPZWNGO-UHFFFAOYSA-N 0.000 claims description 5
- 208000031513 cyst Diseases 0.000 claims description 5
- XQTPCGDEYXTYJX-UHFFFAOYSA-N 2-[benzyl-(3-chloro-2-hydroxypropyl)amino]-n-(4-phenylmethoxyphenyl)acetamide Chemical compound C=1C=CC=CC=1CN(CC(CCl)O)CC(=O)NC(C=C1)=CC=C1OCC1=CC=CC=C1 XQTPCGDEYXTYJX-UHFFFAOYSA-N 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
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- 229910021389 graphene Inorganic materials 0.000 claims description 4
- VYLDMXSRCVCHNE-UHFFFAOYSA-N (6'-hydroxy-3-oxospiro[2-benzofuran-1,9'-xanthene]-3'-yl) prop-2-enoate Chemical compound O1C(=O)C2=CC=CC=C2C21C1=CC=C(OC(=O)C=C)C=C1OC1=CC(O)=CC=C21 VYLDMXSRCVCHNE-UHFFFAOYSA-N 0.000 claims description 3
- 150000004585 5,8-dihydroxy-1,4-naphthoquinones Chemical class 0.000 claims description 3
- QTANTQQOYSUMLC-UHFFFAOYSA-O Ethidium cation Chemical compound C12=CC(N)=CC=C2C2=CC=C(N)C=C2[N+](CC)=C1C1=CC=CC=C1 QTANTQQOYSUMLC-UHFFFAOYSA-O 0.000 claims description 3
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 3
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- 229920001157 Poly(2-vinylnaphthalene) Polymers 0.000 claims description 3
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- 239000012965 benzophenone Substances 0.000 claims description 3
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- FWQHNLCNFPYBCA-UHFFFAOYSA-N fluoran Chemical compound C12=CC=CC=C2OC2=CC=CC=C2C11OC(=O)C2=CC=CC=C21 FWQHNLCNFPYBCA-UHFFFAOYSA-N 0.000 claims description 3
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- 150000005053 phenanthridines Chemical class 0.000 claims description 3
- 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 claims description 3
- 229920000548 poly(silane) polymer Polymers 0.000 claims description 3
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- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 claims description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 2
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- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 2
- OFXQEJMNUIZIGM-UHFFFAOYSA-N [Li].[B].CC1=NC2=C(C=CC=C2C=C1)O Chemical compound [Li].[B].CC1=NC2=C(C=CC=C2C=C1)O OFXQEJMNUIZIGM-UHFFFAOYSA-N 0.000 claims description 2
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- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims 3
- DZBUGLKDJFMEHC-UHFFFAOYSA-N acridine Chemical compound C1=CC=CC2=CC3=CC=CC=C3N=C21 DZBUGLKDJFMEHC-UHFFFAOYSA-N 0.000 claims 2
- GVEPBJHOBDJJJI-UHFFFAOYSA-N fluoranthene Chemical compound C1=CC(C2=CC=CC=C22)=C3C2=CC=CC3=C1 GVEPBJHOBDJJJI-UHFFFAOYSA-N 0.000 claims 2
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- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- GNBHRKFJIUUOQI-UHFFFAOYSA-N fluorescein Chemical compound O1C(=O)C2=CC=CC=C2C21C1=CC=C(O)C=C1OC1=CC(O)=CC=C21 GNBHRKFJIUUOQI-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- PMYWPCUIMGLRHO-UHFFFAOYSA-N n,n'-diphenylbenzenecarboximidamide Chemical compound C=1C=CC=CC=1NC(C=1C=CC=CC=1)=NC1=CC=CC=C1 PMYWPCUIMGLRHO-UHFFFAOYSA-N 0.000 description 2
- RQNVIKXOOKXAJQ-UHFFFAOYSA-N naphthazarin Chemical compound O=C1C=CC(=O)C2=C1C(O)=CC=C2O RQNVIKXOOKXAJQ-UHFFFAOYSA-N 0.000 description 2
- RDOWQLZANAYVLL-UHFFFAOYSA-N phenanthridine Chemical compound C1=CC=C2C3=CC=CC=C3C=NC2=C1 RDOWQLZANAYVLL-UHFFFAOYSA-N 0.000 description 2
- 229960000286 proflavine Drugs 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 230000009182 swimming Effects 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- CPNAVTYCORRLMH-UHFFFAOYSA-N 6-phenylphenanthridine-3,8-diamine Chemical compound C=1C(N)=CC=C(C2=CC=C(N)C=C22)C=1N=C2C1=CC=CC=C1 CPNAVTYCORRLMH-UHFFFAOYSA-N 0.000 description 1
- CCKWMCUOHJAVOL-UHFFFAOYSA-N 7-hydroxy-4-(trifluoromethyl)chromen-2-one Chemical compound FC(F)(F)C1=CC(=O)OC2=CC(O)=CC=C21 CCKWMCUOHJAVOL-UHFFFAOYSA-N 0.000 description 1
- FTEDXVNDVHYDQW-UHFFFAOYSA-N BAPTA Chemical compound OC(=O)CN(CC(O)=O)C1=CC=CC=C1OCCOC1=CC=CC=C1N(CC(O)=O)CC(O)=O FTEDXVNDVHYDQW-UHFFFAOYSA-N 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- GMQASBNFIGBDQR-UHFFFAOYSA-N C(C)(C)(C)C1=CC=2C(C3=CC=CC=C3C(C2C=C1)=O)=O.C(C)(C)(C)C1=CC=2C(C3=CC=CC=C3C(C2C=C1)=O)=O Chemical compound C(C)(C)(C)C1=CC=2C(C3=CC=CC=C3C(C2C=C1)=O)=O.C(C)(C)(C)C1=CC=2C(C3=CC=CC=C3C(C2C=C1)=O)=O GMQASBNFIGBDQR-UHFFFAOYSA-N 0.000 description 1
- PCYKKAVUUSJDOG-UHFFFAOYSA-N C1(=CC=CC2=CC=CC=C12)N(C(C=C)=O)C1=CC=CC=C1.Cl.Cl.C(CN)N Chemical compound C1(=CC=CC2=CC=CC=C12)N(C(C=C)=O)C1=CC=CC=C1.Cl.Cl.C(CN)N PCYKKAVUUSJDOG-UHFFFAOYSA-N 0.000 description 1
- DSNDQQQHZCUGOT-UHFFFAOYSA-N C1=CC(C2=CC3=CC=CC=C3C=C22)=C3C2=CC=CC3=C1.C1=CC(C2=CC3=CC=CC=C3C=C22)=C3C2=CC=CC3=C1 Chemical compound C1=CC(C2=CC3=CC=CC=C3C=C22)=C3C2=CC=CC3=C1.C1=CC(C2=CC3=CC=CC=C3C=C22)=C3C2=CC=CC3=C1 DSNDQQQHZCUGOT-UHFFFAOYSA-N 0.000 description 1
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- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229920001141 Poly(2-naphthyl acrylate) Polymers 0.000 description 1
- 229920001121 Poly(fluorescein O-methacrylate) Polymers 0.000 description 1
- 229920001156 Poly(pyromellitic dianhydride-co-thionin) Polymers 0.000 description 1
- 229920001149 Poly[N-(1-naphthyl)-N-phenylacrylamide] Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- MJYSISMEPNOHEG-UHFFFAOYSA-N anthracen-9-ylmethyl 2-methylprop-2-enoate Chemical compound C1=CC=C2C(COC(=O)C(=C)C)=C(C=CC=C3)C3=CC2=C1 MJYSISMEPNOHEG-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- PPTSBERGOGHCHC-UHFFFAOYSA-N boron lithium Chemical compound [Li].[B] PPTSBERGOGHCHC-UHFFFAOYSA-N 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- CLTUNSZRABVWHS-UHFFFAOYSA-N copper;quinolin-8-ol Chemical compound [Cu+2].C1=CN=C2C(O)=CC=CC2=C1 CLTUNSZRABVWHS-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- WGNGRGQLNAWTJI-UHFFFAOYSA-L dichlororuthenium;1,10-phenanthroline;hydrate Chemical compound O.[Cl-].[Cl-].[Ru+2].C1=CN=C2C3=NC=CC=C3C=CC2=C1.C1=CN=C2C3=NC=CC=C3C=CC2=C1.C1=CN=C2C3=NC=CC=C3C=CC2=C1 WGNGRGQLNAWTJI-UHFFFAOYSA-L 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- ALPAJGXGJCCDDK-UHFFFAOYSA-N erbium;quinolin-8-ol Chemical compound [Er].C1=CN=C2C(O)=CC=CC2=C1.C1=CN=C2C(O)=CC=CC2=C1.C1=CN=C2C(O)=CC=CC2=C1 ALPAJGXGJCCDDK-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- DZFWNZJKBJOGFQ-UHFFFAOYSA-N julolidine Chemical compound C1CCC2=CC=CC3=C2N1CCC3 DZFWNZJKBJOGFQ-UHFFFAOYSA-N 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 150000004702 methyl esters Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- WJZFVBAYCVHWRE-UHFFFAOYSA-N n-[2-oxo-4-(trifluoromethyl)chromen-7-yl]prop-2-enamide Chemical compound C1=C(NC(=O)C=C)C=CC2=C1OC(=O)C=C2C(F)(F)F WJZFVBAYCVHWRE-UHFFFAOYSA-N 0.000 description 1
- VVSGFSHAUFPBFM-UHFFFAOYSA-N n-[5-ethyl-6-phenyl-3-(prop-2-enoylamino)phenanthridin-5-ium-8-yl]prop-2-enamide;bromide Chemical compound [Br-].C12=CC(NC(=O)C=C)=CC=C2C2=CC=C(NC(=O)C=C)C=C2[N+](CC)=C1C1=CC=CC=C1 VVSGFSHAUFPBFM-UHFFFAOYSA-N 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- OICSRSLRADLMGL-UHFFFAOYSA-N quinoline;quinolin-8-ol Chemical compound N1=CC=CC2=CC=CC=C21.C1=CN=C2C(O)=CC=CC2=C1 OICSRSLRADLMGL-UHFFFAOYSA-N 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- DQQMDUNOVOLBEK-UHFFFAOYSA-L tin(iv) 2,3-naphthalocyanine dichloride Chemical compound N1=C(C2=CC3=CC=CC=C3C=C2C2=NC=3C4=CC5=CC=CC=C5C=C4C(=N4)N=3)N2[Sn](Cl)(Cl)N2C4=C(C=C3C(C=CC=C3)=C3)C3=C2N=C2C3=CC4=CC=CC=C4C=C3C1=N2 DQQMDUNOVOLBEK-UHFFFAOYSA-L 0.000 description 1
- TVIVIEFSHFOWTE-UHFFFAOYSA-K tri(quinolin-8-yloxy)alumane Chemical compound [Al+3].C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1 TVIVIEFSHFOWTE-UHFFFAOYSA-K 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/165—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field
- G02F1/166—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect
- G02F1/167—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect by electrophoresis
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Molecular Biology (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
Abstract
The present invention relates to a kind of electrophoretic display device (EPD)s comprising electrophoretic display layer, backboard and transparent front plate are covered with conductive film in transparent front plate, are provided with display circuit on backboard；Electrophoretic display layer includes multiple display micro units, each display micro unit includes encapsulating shell, the electrophoresis particle for being packaged with electrophoresis liquid in encapsulating shell and being suspended in electrophoresis liquid, it shows and contains outer source excitation off-color material in micro unit, or there is solid filler medium between the encapsulating shell and transparent front plate of display micro unit, contain outer source excitation off-color material in solid filler medium, electrophoretic display device (EPD) further includes the excitaton source to match with outer source excitation off-color material, and outer source excitation off-color material shows the color different from electrophoresis particle under the excitation of excitaton source.The embodiment of the present invention in electrophoretic display device (EPD) by being arranged outer source excitation off-color material and excitaton source, so that electrophoretic display device (EPD) can show richer color when excitaton source is opened.
Description
Technical field
The present invention relates to the field of display device more particularly to a kind of electrophoretic display device (EPD)s.
Background technique
Electric paper display is a kind of as thin as paper, soft and erasable display, in recent years in billboard and coloured silk
It is more and more widely used on color board.Existing electrophoretic display device (EPD) can only substantially show black-and-white two color, and color is very dull,
This makes its application be very limited.
Summary of the invention
Based on the deficiencies of the prior art, the technical problem to be solved by the invention is to provide a kind of display color is richer
Electrophoretic display device (EPD).
The embodiment of the present invention provides a kind of electrophoretic display device (EPD) comprising electrophoretic display layer, backboard and transparent front plate, it is described
Bright foreboard, electrophoretic display layer and backboard stack gradually connection from outside to inside, and conductive film is covered in the transparent front plate, described
Display circuit is provided on backboard；Or display circuit is provided in the transparent front plate, conductive thin is provided on the backboard
Film；The display circuit and conductive film are for driving the electrophoretic display layer；The electrophoretic display layer includes that multiple displays are micro-
Unit, each display micro unit includes encapsulating shell, the electrophoresis that electrophoresis liquid is packaged in the encapsulating shell and is suspended in electrophoresis liquid
Particle contains outer source excitation off-color material or the display encapsulating shell of micro unit and described in the display micro unit
There is solid filler medium between bright foreboard, outer source excitation off-color material is contained in the solid filler medium, the electrophoresis is aobvious
Show that device further includes the excitaton source to match with the outer source excitation off-color material, the outer source excitation off-color material is in the excitation
The color different from the electrophoresis particle is showed under the excitation in source.
In a further preferred embodiment, the outer source excitation off-color material is photochromic material, the excitaton source
For excitation light source；Or
The outer source excitation off-color material is thermosensitive chromotropic material, and the excitaton source is heater；Or
The outer source excitation off-color material is magneto discoloration material, and the excitaton source is electromagnet.
In a further preferred embodiment, the photochromic material includes the one or more of following material: propylene
Acid -9- anthracene methyl esters, methacrylic acid -9- anthracene methyl esters, ethidium bromide-N, N`- diacetamide, fluorescein-O- acrylate, 2- naphthalene
Base acrylate, N- (1- naphthalene) ethylendiamine dihydrochloride, 7- [4- (trifluoromethyl) cumarin] acrylamide, 9- vinyl
Anthracene, polyacrylic acid -9- anthracene methyl esters, poly- (3,3 ', 4,4 '-benzophenone tetracarboxylic dianhydride-ALT-3,6- proflavin hemisulfic acids
Salt), poly- (fluorescein O- acrylate), poly- [(methyl methacrylate)-CO- methacryloxy fluorescein], poly- (2- naphthalene
Base acrylate), poly- [N- (1- naphthalene)-N phenyl acrylamide], poly- (pyromellitic acid anhydride-CO- thionine), poly- (2- second
Alkenyl naphthalene), CuPc, dichloro three (1,10- phenanthroline) ruthenium (II) hydrate, 8-hydroxyquinoline mantoquita, four (2- methyl -8- hydroxyls
Base quinoline) boron lithium, 2,3- dichloride naphthalene Tin Phthalocyanine, three (8-hydroxyquinoline)-erbiums, 8-hydroxyquinoline aluminium, benzo [k] fluoranthene, 1,
Bis- (the 2- amino-benzene oxygen)-ethane-N, N, N ' of 2-, N '-tetraacethyl, 2- tert-butyl anthraquinone, 3,8- diamino -6- phenylphenanthridineand,
5,8- dihydroxy -1,4- naphthoquinones, 2,3- diphenyl maleic anhydride, 7- hydroxyl -4- trifluoromethyl cumarin, long Luo Liding, phenanthridines,
1- pyrene formaldehyde；
The thermosensitive chromotropic material includes the one or more of following material: triarylmethane compound, Material of Fluoran, Furanones,
Pyridines, polysilanes, schiff bases；
The magneto discoloration material includes the one or more of following material: magnetic colour-changing ink, poly- diine.
In a further preferred embodiment, the display micro unit is microcapsules, the cyst wall of the microcapsules, electrophoresis liquid
Or contain the outer source excitation off-color material in electrophoresis particle；Or
The display micro unit is microcapsules, has solid filler between the cyst wall of the microcapsules and the transparent front plate
Medium contains the outer source excitation off-color material in the solid filler medium；Or
The display micro unit is micro-cup, contains the outer source excitation in the electrophoresis liquid or electrophoresis particle in the micro-cup
Off-color material.
In a further preferred embodiment, the outer source excitation off-color material is photochromic material, the excitaton source
For burst of ultraviolel light source or infrared excitation light source, the electrophoretic display device (EPD) further includes light guide plate, and the light guide plate is arranged described
The side of the light guide plate is arranged in the observation side of transparent front plate, the excitation light source.
In a further preferred embodiment, the electrophoretic display device (EPD) further includes preceding radiant, and the preceding radiant is can
Light-exposed source, the photochromic material be under the preceding radiant irradiation it is colourless, the preceding radiant is also disposed at described lead
The side of tabula rasa.
In a further preferred embodiment, the outer source excitation off-color material is not in nothing when the excitation of the excitaton source
Color.
In a further preferred embodiment, white electrophoretic particles and black electrophoretic particles are packaged in the encapsulating shell,
The outer source excitation off-color material is under the excitation of the excitaton source in colour.
In a further preferred embodiment, the conductive film is graphene conductive film.
The embodiment of the present invention in electrophoretic display device (EPD) by being arranged outer source excitation off-color material and excitaton source, so that when excitation
When source is opened, electrophoretic display device (EPD) can show richer color.
Detailed description of the invention
It is more particularly described by the preferred embodiment of the present invention shown in the drawings, the above and other purpose of the present invention, feature
It will be become more fully apparent with advantage.Identical appended drawing reference indicates identical part in all the attached drawings, and not deliberately by real
Size equal proportion scaling in border draws attached drawing, it is preferred that emphasis is shows this purport.
Fig. 1 is the structural schematic diagram for the electrophoretic display device (EPD) that first embodiment of the invention provides.
Fig. 2 is the structural schematic diagram for the electrophoretic display device (EPD) that second embodiment of the invention provides.
Fig. 3 is the structural schematic diagram for the electrophoretic display device (EPD) that third embodiment of the invention provides.
Fig. 4 is the arrangement schematic diagram of excitaton source and preceding radiant in third embodiment of the invention.
Specific embodiment
To facilitate the understanding of the present invention, below with reference to relevant drawings to being originally described more fully.
It should be noted that it can be directly to separately when an element is considered as " connection " another element
One element and it is in combination be integrated, or may be simultaneously present centering elements.Term as used herein " installation ", " one
End ", " other end " and similar statement are for illustrative purposes only.
Unless otherwise defined, the technology of all technical and scientific terms used herein and the technical field for belonging to this
The normally understood meaning of personnel is identical.Term used in book described herein is intended merely to the mesh of description specific embodiment
, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more relevant listed items
Any and all combinations.
Please refer to figs. 1 to 4, and the embodiment of the present invention provides a kind of electrophoretic display device (EPD) comprising electrophoretic display layer 12, backboard
11 and transparent front plate 13, transparent front plate 13, electrophoretic display layer 12 and backboard 11 stack gradually connection from outside to inside.Transparent front plate 13
It is connect by circuit with control unit with backboard 11, for applying electric signal at 12 both ends of electrophoretic display layer, makes electrophoretic display layer
12 show required content.
Referring to FIG. 1, in a preferred embodiment, transparent front plate 13 is by electrode base board 131 and is covered in electrode base board 131
Transparent conductive film 132 on inner surface is constituted, preceding electrode of the transparent front plate 13 as electrophoretic display device (EPD), then can be on backboard 11
It is provided with TFT display circuit, the content shown for controlling electrophoretic display device (EPD).Referring to FIG. 2, in further embodiments, showing
Show that circuit is formed in the inside of transparent front plate 13, be provided with conductive film on backboard 11, as the rear electrode of electrophoretic display device (EPD), electricity
Swimming display layer 12 and backboard 11 are encapsulated by sealant 18.Inner surface, side surface and the electrophoresis that sealant 18 coats backboard 11 are aobvious
Show the side surface of layer 12, and is connect with the inner surface of transparent front plate 13.Display circuit and conductive film 132 are provided commonly in electrophoresis
Apply voltage on display layer 12 to drive electrophoretic display layer 12.Transparent conductive film 132 can be ito thin film or graphene is thin
Film, wherein graphene film has good electric conductivity, also has preferable flexibility, therefore be less likely to be damaged.
Electrophoretic display layer 12 includes multiple display micro units 121, and each display micro unit 121 includes encapsulating shell, encapsulating shell
The electrophoresis particle for being inside packaged with electrophoresis liquid and being suspended in electrophoresis liquid.When transparent front plate 13 and backboard 11 are at 12 liang of electrophoretic display layer
When end applies electric signal, the electrophoresis particle of difference display micro unit 121 is done in electrophoresis liquid close to transparent front plate 13 and far from thoroughly
The movement of bright foreboard 13, to form display picture and text.
In one embodiment, it shows and contains outer source excitation off-color material in micro unit 121.In another embodiment, it shows
There is solid filler medium between the encapsulating shell and transparent front plate 13 of micro unit 121, contain outer source excitation in solid filler medium
Off-color material.Signified outer source excitation off-color material refers to the application electric field, magnetic field, illumination, temperature on outer source excitation off-color material
When equal outfields, the color of outer source excitation off-color material can change.Electrophoretic display device (EPD) further includes and outer source excitation off-color material
The excitaton source 30 to match, outer source excitation off-color material show the face different from electrophoresis particle under the excitation of excitaton source 30
Color, and observer is observed that the color of outer source excitation off-color material so that electrophoretic display device (EPD) show it is more rich
Rich color.In a preferred embodiment, it shows in micro unit 121 containing there are many external sources to excite off-color material, every kind of outer source excitation
The color that off-color material is presented under outer source excitation is different, can enrich the color of electrophoretic display device (EPD) in this way.
In some preferred embodiments, outer source excitation off-color material is photochromic material, and excitaton source 30 is excitation light source,
Such as ultraviolet source or infrared light supply, when excitation light source is lighted, photochromic material shows the color different from electrophoresis particle,
And excitation light source is when extinguishing, photochromic material can be in colourless or white etc., it is possible thereby to show that electrophoretic display device (EPD) not
Same color.In further embodiments, outer source excitation off-color material is thermosensitive chromotropic material, and excitaton source is heater.When adding
When hot device is opened, outer source excitation off-color material heating shows the color different from electrophoresis particle, and when heater closing, outside
Source excitation off-color material gradually cools down, can be in colourless or white etc..Outer source excitation off-color material in yet other embodiments,
For magneto discoloration material, excitaton source is electromagnet, and when the solenoid is energized, electromagnet applies magnetic in outer source excitation off-color material
, so that it is showed the color different from electrophoresis particle, and when electromagnet no power, magnetism disappears, outer source excitation discoloration
Magnetic field on material also disappears, therefore outer source excitation off-color material can be restored to colorless state or white states.
In a preferred embodiment, photochromic material includes the one or more of following material: acrylic acid -9- anthracene methyl esters
(9-Anthracenylmethyl acrylate), methacrylic acid -9- anthracene methyl esters (9-Anthracenylmethyl
Methacrylate), ethidium bromide-N, N`- diacetamide (Ethidium bromide-N, N '-bisacrylamide), glimmering
Light element-O- acrylate (Fluorescein o-acrylate), 2- naphthalene acrylate (2-Naphthyl acrylate),
[4- (trifluoromethyl) is fragrant by N- (1- naphthalene) ethylendiamine dihydrochloride (N- (1-Naphthyl)-N-phenylacrylamide), 7-
Legumin] acrylamide (7- [4- (Trifluoromethyl) coumarin] acrylamide), 9- vinyl anthracene (9-
Vinylanthracene), polyacrylic acid -9- anthracene methyl esters (poly 9-Anthracenylmethyl acrylate), it is poly- (3,
3 ', 4,4 '-benzophenone tetracarboxylic dianhydride-ALT-3,6- proflavin Hemisulphates) (Poly (3,3 ', 4,4 '-
benzophenonete tracarboxylic dianhydride-alt-3,6-diaminoacridine
Hemisulfate)), poly- (fluorescein O- acrylate) (Poly (fluorescein O-acrylate)), poly- [(metering system
Sour methyl esters)-CO- methacryloxy fluorescein] (Poly (fluorescein O-methacrylate)), poly- (2- naphthalene
Acrylate) (Poly (2-naphthyl acrylate)), poly- [N- (1- naphthalene)-N phenyl acrylamide] (Poly [N- (1-
Naphthyl)-N-phenylacrylamide]), poly- (pyromellitic acid anhydride-CO- thionine) (Poly (pyromellitic
Dianhydride-co-thionin)), poly- (2- vinyl naphthalene) (Poly (2-vinylnaphthalene)), CuPc
(Copper (II) phthalocyanine), dichloro three (1,10- phenanthroline) ruthenium (II) hydrate (Dichlorotris (1,10-
Phenanthroline) ruthenium (II) hydrate), 8-hydroxyquinoline mantoquita (8-Hydroxyquinoline copper
(II) salt), four (2- methyl -8-hydroxyquinoline) boron lithium (Lithium tetra (2-methyl-8-
Hydroxyquinolinato) boron), 2,3- dichloride naphthalene Tin Phthalocyanine (Tin (IV) 2,3-naphthalocyanine
Dichloride), three (8-hydroxyquinoline)-erbiums (Tris (8-hydroxyquinolinato) erbium (III)), 8- hydroxyl quinoline
Quinoline aluminium (Tris- (8-hydroxyquinoline) aluminum), benzo [k] fluoranthene (Benzo [k] fluoranthene), 1,
Bis- (the 2- amino-benzene oxygen)-ethane-N, N, N ' of 2-, N '-tetraacethyl (1,2-Bis (2-Aminophenoxy) ethane-N, N,
N ', N '-tetraacetic acid), 2- tert-butyl anthraquinone (2-tert-Butylanthraquinone), 3,8- diamino -6-
Phenylphenanthridineand (3,8-Diamino-6-phenylphenanthridine), 5,8- dihydroxy -1,4- naphthoquinones (5,8-
Dihydroxy-1,4-naphthoquinone), 2,3- diphenyl maleic anhydride (2,3-Diphenylmaleic
Anhydride), 7- hydroxyl -4- trifluoromethyl cumarin (7-Hydroxy-4- (trifluoromethyl) coumarin), long
Luo Liding (Julolidine), phenanthridines (Phenanthridine), 1- pyrene formaldehyde (1-Pyrenecarboxaldehyde).
Thermosensitive chromotropic material includes the one or more of following material: triarylmethane compound, Material of Fluoran, Furanones, pyridine
Class, polysilanes, schiff bases.
Magneto discoloration material includes the one or more of following material: magnetic colour-changing ink, poly- diine.
In a preferred embodiment, display micro unit 121 is microcapsules, cyst wall, electrophoresis liquid or the electrophoresis grain of microcapsules
Contain outer source excitation off-color material in son.In another preferred embodiment, display micro unit 121 is microcapsules, the capsule of microcapsules
There is solid filler medium between wall and transparent front plate, contain outer source excitation off-color material in solid filler medium.The solid-state is filled out
Filling medium can be the product formed after the drying of the electric ink containing adhesive.In other preferred embodiment, show micro-
Unit 121 is micro-cup, contains outer source excitation off-color material in the electrophoresis liquid or electrophoresis particle in micro-cup.Show micro unit 121
For the electrophoretic display layer 12 of microcapsules, the electric inks of multiple tool microcapsules can be contained by being coated in transparent front plate 13,
Then electric ink is dried, forms electrophoretic display layer 12.The ingredient and manufacturing method of electric ink can refer to Chinese patent
Apply for the associated description in CN106292118A.Show that micro unit 121 is specific structure, the material of the electrophoretic display layer 12 of micro-cup
It can be with reference to the associated description in Chinese patent CN1246730C with manufacturing method.Show that the partial size of micro unit 21 can be several micro-
Rice is between several hundred microns.
Fig. 3 and Fig. 4 are please referred to, in a preferred embodiment, outer source excitation off-color material is photochromic material, excitaton source 30
For burst of ultraviolel light source or infrared excitation light source, electrophoretic display device (EPD) further includes light guide plate 16, and light guide plate 16 is arranged in transparent front plate
The side of light guide plate 16 is arranged in 13 observation side, excitaton source 30.It is provided with light element 161 on light guide plate 16, can be used for
The incident light or reflected light for enhancing the electrophoretic display device (EPD), can be used for the light for importing other secondary light sources.Further
Preferred embodiment in, electrophoretic display device (EPD) further includes preceding radiant 40, and preceding radiant 40 is visible light source, and photochromic material exists
The irradiation of preceding radiant 40 is lower be it is colourless, preceding radiant 40 is also disposed at the side of light guide plate 16.When needing to show colour, excitaton source
30 and preceding radiant 40 open simultaneously, when without showing colored, then radiant 40 before can only opening.
In a preferred embodiment, white electrophoretic particles and black electrophoretic particles, outer source excitation discoloration are packaged in encapsulating shell
Material is under the excitation of excitaton source 30 in colour.For showing that micro unit 121 is microcapsules, there is white in each microcapsules
Electrophoresis particle and black electrophoretic particles, white electrophoretic particles are electrically charged (such as positive charge), black electrophoretic particles band and white electricity
The charge (such as negative electrical charge) of swimming particle opposite polarity.When transparent front plate 13 and backboard 11 apply negative voltage in electrophoretic display layer 12
When pulse, white electrophoretic particles are moved to close to the position of transparent front plate 13, and black electrophoretic particles are then moved to close to backboard 11
Position, the microcapsules are white at this time.When transparent front plate 13 and backboard 11 are when electrophoretic display layer 12 applies positive voltage pulse,
Black electrophoretic particles are moved to close to the position of transparent front plate 13, and white electrophoretic particles are then moved to close to the position of backboard 11,
The microcapsules are in black at this time.When opening excitaton source 30, outer source excitation off-color material is in colour under the excitation of excitaton source 30,
Such as red, blue or green.Corresponding microcapsules are also in colored at this time.In other embodiments, white electrophoretic particles can be with
Electrically charged (such as positive charge), black electrophoretic particles are not charged.
The embodiment of the present invention in electrophoretic display device (EPD) by being arranged outer source excitation off-color material and excitaton source, so that when excitation
When source is opened, electrophoretic display device (EPD) can show richer color.
The several embodiments invented above described embodiment only expresses, the description thereof is more specific and detailed, but not
It can therefore be construed as limiting the scope of the patent.It should be pointed out that for those of ordinary skill in the art,
Without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection model of the invention
It encloses.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (9)
1. a kind of electrophoretic display device (EPD) comprising electrophoretic display layer, backboard and transparent front plate, the transparent front plate, electrophoretic display layer
It stacks gradually connection from outside to inside with backboard, conductive film is covered in the transparent front plate, display is provided on the backboard
Circuit；Or display circuit is provided in the transparent front plate, conductive film is provided on the backboard；The display circuit and
Conductive film is for driving the electrophoretic display layer；The electrophoretic display layer includes multiple display micro units, each micro- list of display
Member includes encapsulating shell, the electrophoresis particle for being packaged with electrophoresis liquid in the encapsulating shell and being suspended in electrophoresis liquid, which is characterized in that institute
State display micro unit in containing outer source excitation off-color material or it is described display micro unit encapsulating shell and the transparent front plate it
Between there is solid filler medium, outer source excitation off-color material is contained in the solid filler medium, the electrophoretic display device (EPD) also wraps
Include the excitaton source to match with the outer source excitation off-color material, excitation of the outer source excitation off-color material in the excitaton source
Under show the color different from the electrophoresis particle.
2. electrophoretic display device (EPD) as described in claim 1, which is characterized in that the outer source excitation off-color material is photochromic material
Material, the excitaton source are excitation light source；Or
The outer source excitation off-color material is thermosensitive chromotropic material, and the excitaton source is heater；Or
The outer source excitation off-color material is magneto discoloration material, and the excitaton source is electromagnet.
3. electrophoretic display device (EPD) as claimed in claim 2, which is characterized in that the photochromic material includes the one of following material
Kind is a variety of: acrylic acid -9- anthracene methyl esters, methacrylic acid -9- anthracene methyl esters, ethidium bromide-N, N`- diacetamide, fluorescein-O-
Acrylate, 2- naphthalene acrylate, N- (1- naphthalene) ethylendiamine dihydrochloride, 7- [4- (trifluoromethyl) cumarin] acryloyl
Amine, 9- vinyl anthracene, polyacrylic acid -9- anthracene methyl esters, poly- (3,3 ', 4,4 '-benzophenone tetracarboxylic dianhydride-ALT-3,6- diaminos
Base acridine Hemisulphate), poly- (fluorescein O- acrylate), poly- [(methyl methacrylate)-CO- methacryloxy is glimmering
Light element], poly- (2- naphthalene acrylate), poly- [N- (1- naphthalene)-N phenyl acrylamide], poly- (pyromellitic acid anhydride-CO-
Thionine), poly- (2- vinyl naphthalene), CuPc, dichloro three (1,10- phenanthroline) ruthenium (II) hydrate, 8-hydroxyquinoline mantoquita, four
(2- methyl -8-hydroxyquinoline) boron lithium, 2,3- dichloride naphthalene Tin Phthalocyanine, three (8-hydroxyquinoline)-erbiums, 8-hydroxyquinoline aluminium, benzene
And bis- (the 2- amino-benzene oxygen)-ethane-N, N, N ' of [k] fluoranthene, 1,2-, N '-tetraacethyl, 2- tert-butyl anthraquinone, 3,8- diamino-
6- phenylphenanthridineand, 5,8- dihydroxy -1,4- naphthoquinones, 2,3- diphenyl maleic anhydride, 7- hydroxyl -4- trifluoromethyl cumarin, long
Luo Liding, phenanthridines, 1- pyrene formaldehyde；
The thermosensitive chromotropic material includes the one or more of following material: triarylmethane compound, Material of Fluoran, Furanones, pyridine
Class, polysilanes, schiff bases；
The magneto discoloration material includes the one or more of following material: magnetic colour-changing ink, poly- diine.
4. electrophoretic display device (EPD) as described in claim 1, which is characterized in that the display micro unit is microcapsules, micro- glue
Contain the outer source excitation off-color material in the cyst wall of capsule, electrophoresis liquid or electrophoresis particle；Or
The display micro unit is microcapsules, between the cyst wall of the microcapsules and the transparent front plate there is solid filler to be situated between
Matter contains the outer source excitation off-color material in the solid filler medium；Or
The display micro unit is micro-cup, and the outer source excitation discoloration is contained in the electrophoresis liquid or electrophoresis particle in the micro-cup
Material.
5. electrophoretic display device (EPD) as described in claim 1, which is characterized in that the outer source excitation off-color material is photochromic material
Material, the excitaton source are burst of ultraviolel light source or infrared excitation light source, and the electrophoretic display device (EPD) further includes light guide plate, the leaded light
The observation side of the transparent front plate is arranged in plate, and the side of the light guide plate is arranged in the excitation light source.
6. electrophoretic display device (EPD) as claimed in claim 5, which is characterized in that the electrophoretic display device (EPD) further includes preceding radiant, institute
Radiant is visible light source before stating, and the photochromic material is colourless, the preceding radiant under the preceding radiant irradiation
It is also disposed at the side of the light guide plate.
7. electrophoretic display device (EPD) as described in claim 1, which is characterized in that the outer source excitation off-color material is not by the excitation
In colourless when the excitation in source.
8. electrophoretic display device (EPD) as described in claim 1, which is characterized in that be packaged in the encapsulating shell white electrophoretic particles and
Black electrophoretic particles, the outer source excitation off-color material is under the excitation of the excitaton source in colour.
9. electrophoretic display device (EPD) as claimed in any one of claims 1 to 8, which is characterized in that the conductive film is led for graphene
Conductive film.
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| CN109976063A (en) * | 2019-03-15 | 2019-07-05 | 广州奥翼电子科技股份有限公司 | A kind of electrophoresis showed micro unit |
| CN110016331A (en) * | 2019-03-15 | 2019-07-16 | 广州奥翼电子科技股份有限公司 | The preparation method and electrophoresis showed micro unit of outer source excitation changeable colour electrophoresis particle |
| CN110058473A (en) * | 2019-03-15 | 2019-07-26 | 广州奥翼电子科技股份有限公司 | A kind of bimodulus electrophoretic display device (EPD) |
| CN110068975A (en) * | 2019-03-15 | 2019-07-30 | 广州奥翼电子科技股份有限公司 | A kind of electrophoretic display device (EPD) |
| CN113744697A (en) * | 2021-10-09 | 2021-12-03 | 珠海读书郎软件科技有限公司 | Special color ink screen and color developing method |
| CN113835277A (en) * | 2021-10-09 | 2021-12-24 | 珠海读书郎软件科技有限公司 | Special color electronic ink screen and color developing method |
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| CN110058473A (en) * | 2019-03-15 | 2019-07-26 | 广州奥翼电子科技股份有限公司 | A kind of bimodulus electrophoretic display device (EPD) |
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