CN109613779A - The membrane structure cholesteric liquid crystal display screen and preparation method thereof of laser ablation production - Google Patents
The membrane structure cholesteric liquid crystal display screen and preparation method thereof of laser ablation production Download PDFInfo
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- CN109613779A CN109613779A CN201811557121.0A CN201811557121A CN109613779A CN 109613779 A CN109613779 A CN 109613779A CN 201811557121 A CN201811557121 A CN 201811557121A CN 109613779 A CN109613779 A CN 109613779A
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- ito layer
- liquid crystal
- membrane structure
- laser ablation
- crystal display
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- 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
- G02F1/13—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 liquid crystals, e.g. single liquid crystal display cells
- G02F1/137—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 liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/13718—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 liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on a change of the texture state of a cholesteric liquid crystal
-
- 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
- G02F1/13—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 liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
-
- 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
- G02F1/13—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 liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133553—Reflecting elements
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Liquid Crystal (AREA)
Abstract
The present invention relates to a kind of membrane structure cholesteric liquid crystal display screens of laser ablation production, including upper and lower ITO layer, cholesteric crystal layer, upper and lower flexible mylar and absorption reflectance coating；There is upper ITO layer on the downside of upper flexible mylar, has lower ITO layer on the upside of lower flexible mylar, be coated with cholesteric crystal layer under upper ITO layer；ITO layer figure is formed for laser ablation；Flexible mylar is fixed by edge sealing adhesive；Absorption reflectance coating is printed under lower flexible mylar.Production method includes: 1) laser ablation；2) prepared by membrane structure cholesteric liquid crystal display screen.Advantage: 1) figure needed using modern computer technology etching, simple process is high-efficient, saves gluing, baking, exposure, development, stripping technology.2) it prevents flexible mylar from bubble, out-of-flatness etc. occur, superfine wire slit width, high-resolution high-precision ITO electrode film can be prepared.3) the cholesteric liquid crystal display screen for making large scale membrane structure is easy to operate, low in cost.
Description
Technical field
The present invention is a kind of membrane structure cholesteric liquid crystal display screen and preparation method thereof of laser ablation production, belongs to liquid crystal
Display screen technology field.
Background technique
Cholesteric liquid crystal is a kind of cholesterin derivative that liquid crystalline phase is presented in certain temperature range, and intramolecular has
The molecule arranging structure of asymmetric carbon atom and periodic spin stratiform, layer are parallel to each other with interlayer, and molecule has liquid crystal molecule
General character is presented rodlike.But its long axis has on the same layer along a direction preferred orientation, and adjacent two layers are intermolecular preferentially to be taken
Differ 15 degree of difference to, direction, and preferred orientation direction in space along optical axis spiral rotation.Due to this special knot
Structure makes cholesteric liquid crystal have apparent optical activity, circularly polarized light dichroism and selective Bragg reflection.
The working principle of cholesteric liquid crystal are as follows: apply some strength electric field in P state liquid crystal molecule, liquid crystal can be from
P state is converted into FC state, and FC state is a kind of stable state, belongs to multidomain structure, and liquid crystal molecule Spiral distribution does not have an order, but each farmland
Helical structure also exists, and FC state generates scattering to incident light.If applying sufficiently large voltage on cholesteric liquid crystal, at this moment liquid crystal
Molecules align is transformed into H state.Liquid crystal is transparent at this time, that is, we usually said " clearing ".Liquid in H state
Crystalline substance, when voltage is reduced to rapidly " 0 ", liquid crystal molecule just will become P state, and when voltage slowly reduces, liquid crystal molecule just be will become
FC state.P state and FC the state liquid crystal molecule under zero electric field are at a kind of stable state, scattering when reflection state and FC state when P state
State forms comparison of light and shade, realizes display function.
When making membrane structure cholesteric liquid crystal display screen, large scale flexible mylar ITO layer electrode film etching process
In, if going bonding process mode using bonding, when be easy to causeing flexible mylar and auxiliary glass large area bonding, occur
Bubble, out-of-flatness are difficult to be etched into superfine wire slit width, high-resolution high-precision ITO electricity with the mode of exposure etching in this way
Pole film.
Summary of the invention
Proposed by the present invention is a kind of membrane structure cholesteric liquid crystal display screen and preparation method thereof of laser ablation production,
Purpose is to solve in the production of membrane structure cholesteric liquid crystal display screen, and when flexible mylar and auxiliary glass large area bonding holds
Easily there is bubble and lead to the defect of surface irregularity, propose a kind of laser ablation production, be suitable for large-sized membrane structure gallbladder
Steroid phase liquid crystal display and preparation method thereof combines the gallbladder of the membrane structure formed with the flexible mylar after laser ablation up and down
Steroid phase liquid crystal display, simple process, cost is relatively low.
Technical solution of the invention: a kind of membrane structure cholesteric liquid crystal display screen of laser ablation production, including it is upper
ITO layer 5, cholesteric crystal layer 7, upper flexible mylar 8, lower flexible mylar 9, absorbs reflectance coating 10 at lower ITO layer 1；Its
In, the membrane structure cholesteric liquid crystal display screen is followed successively by flexible mylar 8, upper ITO layer 5, cholesteric phase liquid from top to bottom
Crystal layer 7, lower ITO layer 1, lower flexible mylar 9；Upper ITO layer 5, lower flexible mylar are had on the downside of upper flexible mylar 8
9 upsides have lower ITO layer 1, and upper ITO layer 5 is lower to be coated with cholesteric crystal layer 7；5 figure of upper ITO layer and lower ITO layer 1
Figure is formed for laser ablation；Upper flexible mylar 8 and lower flexible mylar 9 pass through the fixed composition film of edge sealing adhesive 6 and film
Structure；It is printed under lower flexible mylar 9 and absorbs reflectance coating 10.
It further include solderable flexible connecting plate 2, in 5 lower surface of left edge and upper ITO layer of lower 1 upper surface of ITO layer
Lower edge pass through anisotropy conductiving glue item 3 respectively and be fixed with solderable flexible circuit board 2.
Its production method includes the following steps:
(1) laser ablation；
(2) prepared by membrane structure cholesteric liquid crystal display screen.
Beneficial effects of the present invention:
1) using modern computer technology, the figure of needs is etched, with traditional gluing, exposure technique is compared to technics comparing letter
Single, efficiency is relatively high, saves the techniques such as gluing, baking, exposure, development, removing.
2) it prevents flexible mylar from the problems such as bubble, out-of-flatness occur, superfine wire slit width, high-resolution height can be prepared
Precision ITO electrode film.
3) the cholesteric liquid crystal display screen for making large scale membrane structure is easy to operate, low in cost, good market prospect.
Detailed description of the invention
Attached drawing 1 is the structural schematic diagram using the membrane structure cholesteric liquid crystal display screen of laser etching techniques production.
Attached drawing 2 is solderable flexible connecting plate connection schematic diagram.
1 it is lower ITO layer in figure, 2 be solderable flexible connecting plate FPC, 3 be anisotropy conductiving glue ACF, 4 is technique
Fitting registration holes, 5 be upper ITO layer, 6 be edge sealing adhesive, 7 be cholesteric crystal layer, 8 be upper flexible mylar, 9 be lower flexible poly-
Ester film, 10 are to absorb reflectance coating.
Specific embodiment
A kind of membrane structure cholesteric liquid crystal display screen of laser ablation production, including upper ITO layer 5, lower ITO layer 1, cholesteric phase
Liquid crystal layer 7, lower flexible mylar 9, absorbs reflectance coating 10 at upper flexible mylar 8；Wherein, the membrane structure cholesteric phase liquid
Crystal display screen is followed successively by flexible mylar 8, upper ITO layer 5, cholesteric crystal layer 7, lower ITO layer 1, lower flexibility from top to bottom
Polyester film 9；Upper ITO layer 5 is had on the downside of upper flexible mylar 8, has lower ITO layer 1 on the upside of lower flexible mylar 9, on
ITO layer 5 is lower to be coated with cholesteric crystal layer 7；5 figure of upper ITO layer is formed with lower 1 figure of ITO layer for laser ablation；On
Flexible mylar 8 and lower flexible mylar 9 pass through the fixed composition film of edge sealing adhesive 6 and membrane structure；Lower flexible mylar 9
Under be printed with absorb reflectance coating 10.
It further include solderable flexible connecting plate 2, in 5 lower surface of left edge and upper ITO layer of lower 1 upper surface of ITO layer
Lower edge pass through anisotropy conductiving glue item 3 respectively and be fixed with solderable flexible circuit board 2.
Its production method includes the following steps:
(1) it is soft that the design document in computer aided design software AUTOCAD laser ablation: is transformed into computer-aided manufacturing
In part CAM, by issuing instructions to laser ablation instrument after CAM typesetting, programming, laser ablation instrument is according to instruction in upper 5 He of ITO layer
Figure is etched in lower ITO layer 1.
(2) prepared by membrane structure cholesteric liquid crystal display screen:
1) cholesteric crystal layer 7 is coated in the lower ITO layer 1 for the flexible mylar for having carved ITO pattern；
2) the upper flexible mylar 8 and lower flexible mylar 9 for having coated cholesteric crystal layer 7 are using technique fitting registration holes
4 fitting contrapositions constitute film and membrane structure by the way that edge sealing adhesive 6 is fixed；
3) printing absorbs reflectance coating 10 under lower flexible mylar 9.
4): the lower edge under the left edge and upper ITO layer 5 in lower ITO layer 1 passes through anisotropy conductiving glue item 3 respectively
The fixed solderable flexible connecting plate 2 of hot pressing.
Further explanation of the technical solution of the present invention with reference to the accompanying drawing
As shown in Fig. 1, the membrane structure cholesteric liquid crystal display screen made using laser etching techniques.Its structure includes lower ITO
Layer 1, solderable flexible connecting plate FPC 2, anisotropy conductiving glue ACF3, technique are bonded registration holes 4, upper ITO layer 5, edge sealing
Glue 6, cholesteric crystal layer 7, upper flexible mylar 8, lower flexible mylar 9 absorb reflectance coating 10.
It is wherein cholesteric crystal layer 7 among upper flexible mylar 8 and lower flexible mylar 9, lower flexible poly-
Cholesteric crystal layer 7 is coated on ester film 9, then carries out flexible mylar 8 and lower flexibility using technique fitting registration holes 4
The fitting contraposition of polyester film 9, finally by the fixed cholesteric liquid crystal screen for constituting film and membrane structure of edge sealing adhesive 6.It is upper flexible poly-
It is upper ITO layer 5 under ester film 8, is lower ITO layer 1 on lower flexible mylar 9, is between upper ITO layer 5 and lower ITO layer 1
Cholesteric crystal layer 7, the upper ITO layer 5 and lower ITO layer 1 are etched into required desirable pattern by laser etching techniques,
Technique fitting registration holes 4 are used to carry out flexible mylar 8 in lower ITO layer 1 after coating cholesteric crystal layer 7 soft under
Property the fitting contraposition of polyester film 9, then pass through the fixed cholesteric liquid crystal screen for constituting film and membrane structure of edge sealing adhesive 6.Lower flexible poly-
The lower printing of ester film 9 absorbs reflectance coating 10.
As shown in Fig. 2, the lower edge under the left edge and upper ITO layer 5 in lower ITO layer 1 passes through anisotropy respectively
Conductive adhesive tape ACF3 hot pressing can weld flexible connecting plate FPC 2.
Embodiment 1
1) design document in computer aided design software AUTOCAD is converted into computer-aided manufacturing software CAM.
2) it is etched on the ito layer with laser by issuing instructions to laser ablation instrument after CAM typesetting, programming again and forms institute
The pattern needed.
3) HR2C213-510 cholesteric crystal layer is stamped on the lower flexible mylar for carving good pattern, with a thickness of 5
um。
4) the lower flexible mylar of upper flexible mylar and printed cholesteric crystal layer is pasted by the technique of quadrangle again
It closes registration holes and aligns fitting in advance.
5) surrounding of the flexible mylar up and down heat-sensitive glue 1008DL after pre- contraposition fitting is heated 50 degree of edge sealing again.
6) in the lower surface of lower flexible mylar, printing absorbs reflectance coating BM-040 again.
7) again in the following fate of the ITO layer of the left edge and upper flexible mylar of the ITO layer of lower flexible mylar
It Tong Guo not 50 degree of bindings, 7 anisotropy conductiving glue ACF CP9731.
8) on the ACF finally bound again, by temperature 180 degree, hot pressing binds 7 under conditions of 0.26 Mpa of pressure
FPC E169DPFA 。
Claims (6)
1. laser ablation production membrane structure cholesteric liquid crystal display screen, it is characterized in that include upper ITO layer (5), lower ITO layer (1),
Cholesteric crystal layer (7), lower flexible mylar (9), absorbs reflectance coating (10) at upper flexible mylar (8)；Wherein, described
Membrane structure cholesteric liquid crystal display screen is followed successively by flexible mylar (8), upper ITO layer (5), cholesteric crystal layer from top to bottom
(7), lower ITO layer (1), lower flexible mylar (9)；Upper ITO layer (5) are had on the downside of upper flexible mylar (8), it is lower flexible poly-
Lower ITO layer (1) is had on the upside of ester film (9), is coated with cholesteric crystal layer (7) under upper ITO layer (5)；The upper ITO layer (5)
Figure is formed with lower ITO layer (1) figure for laser ablation；Upper flexible mylar (8) and lower flexible mylar (9) pass through
Edge sealing adhesive (6) is fixed to constitute film and membrane structure；It is printed under lower flexible mylar (9) and absorbs reflectance coating (10).
2. the membrane structure cholesteric liquid crystal display screen of laser ablation production according to claim 1, it is characterized in that further including
Solderable flexible connecting plate (2), in the left edge of lower ITO layer (1) upper surface and the lower edge of upper ITO layer (5) lower surface
Solderable flexible circuit board (2) are fixed with by anisotropy conductiving glue item (3) respectively.
3. the membrane structure cholesteric liquid crystal display screen of laser ablation production according to claim 1, it is characterized in that the gallbladder
Steroid phase thickness of liquid crystal layer is 5 um.
4. the method for making the membrane structure cholesteric liquid crystal display screen of laser ablation production as described in claim 1, feature
It is to include the following steps:
(1) it is soft that the design document in computer aided design software AUTOCAD laser ablation: is transformed into computer-aided manufacturing
In part CAM, by issuing instructions to laser ablation instrument after CAM typesetting, programming, laser ablation instrument is according to instruction in upper ITO layer (5)
Figure is etched on lower ITO layer (1)；
(2) prepared by membrane structure cholesteric liquid crystal display screen.
5. the production method of the membrane structure cholesteric liquid crystal display screen of laser ablation production according to claim 1, special
Sign is that the preparation of the step (2) membrane structure cholesteric liquid crystal display screen comprises the following steps that:
1) cholesteric crystal layer (7) are coated in the lower ITO layer (1) for the flexible mylar for having carved ITO pattern；
2) the upper flexible mylar (8) and lower flexible mylar (9) for having coated cholesteric crystal layer (7) are bonded using technique
Registration holes (4) fitting contraposition constitutes film and membrane structure by the way that edge sealing adhesive (6) are fixed；
3) printing absorbs reflectance coating (10) under lower flexible mylar (9).
6. the production method of the membrane structure cholesteric liquid crystal display screen of laser ablation production according to claim 5, special
Sign be further include step 4): the lower edge under the left edge and upper ITO layer (5) on lower ITO layer (1) passes through anisotropy respectively
Conductive adhesive tape (3) hot pressing is fixed solderable flexible connecting plate (2).
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|---|---|---|---|
| CN201811557121.0A CN109613779A (en) | 2018-12-19 | 2018-12-19 | The membrane structure cholesteric liquid crystal display screen and preparation method thereof of laser ablation production |
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| CN201811557121.0A CN109613779A (en) | 2018-12-19 | 2018-12-19 | The membrane structure cholesteric liquid crystal display screen and preparation method thereof of laser ablation production |
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| CN108919574A (en) * | 2018-07-16 | 2018-11-30 | 中国科学院宁波材料技术与工程研究所 | It is a kind of using transparent graphene conductive film as flexible liquid crystal display part of substrate and preparation method thereof |
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2018
- 2018-12-19 CN CN201811557121.0A patent/CN109613779A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040246411A1 (en) * | 2003-06-05 | 2004-12-09 | Eastman Kodak Company | Reflective cholesteric liquid crystal display with complementary light-absorbing layer |
| CN101957521A (en) * | 2010-08-12 | 2011-01-26 | 大连东方科脉电子有限公司 | High-contrast liquid crystal electronic paper displayer and manufacturing method thereof |
| CN102615894A (en) * | 2012-03-15 | 2012-08-01 | 天津大学 | Flexible liquid crystal thin film and preparation method thereof |
| CN104808871A (en) * | 2014-01-25 | 2015-07-29 | 福建省辉锐电子技术有限公司 | Capacitive touch screen and preparation method |
| CN105702700A (en) * | 2016-02-02 | 2016-06-22 | 福州大学 | Laser etching technology-based thin film transistor array and manufacturing method therefor |
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