CN105093620B - Public advertising display screen and preparation method thereof - Google Patents
Public advertising display screen and preparation method thereof Download PDFInfo
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- CN105093620B CN105093620B CN201510484077.5A CN201510484077A CN105093620B CN 105093620 B CN105093620 B CN 105093620B CN 201510484077 A CN201510484077 A CN 201510484077A CN 105093620 B CN105093620 B CN 105093620B
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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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
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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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
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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
- G02F1/133—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
- G02F1/133504—Diffusing, scattering, diffracting elements
-
- 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
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
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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
- G02F1/133—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
- G02F1/133504—Diffusing, scattering, diffracting elements
- G02F1/133507—Films for enhancing the luminance
-
- 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
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/38—Anti-reflection arrangements
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- Chemical & Material Sciences (AREA)
- Mathematical Physics (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Dispersion Chemistry (AREA)
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The present invention provides a kind of public advertising display screen and preparation method thereof.The preparation method of the public advertising display screen is when making PDLC box (1) by the shape transfer of optical brightening membrane (13) surface irregularity to polydimethylsiloxanefilm film (14), the first non-planar electrode (15) is formed on optical brightening membrane (13), the second non-planar electrode (16) is formed in polydimethylsiloxanefilm film (14), PDLC box (1) is fixed on to the outside of a common TFT LCDs (2) again, the two combination forms public advertising display screen；Exit direction by public advertising display screen made from this method both light is more, and big visual angle appreciation effect is more preferable, and and can is enough to carry out mist degree regulation according to environmental light intensity change, effectively moderately resists dizzy, antireflection, lifts display effect.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of public advertising display screen and preparation method thereof.
Background technology
Liquid crystal display (Liquid Crystal Display, LCD) include housing, the liquid crystal panel in housing and
Backlight module in housing.Usual liquid crystal panel is brilliant by a colored filter substrate (Color Filter, CF), a film
Body pipe array base palte (Thin Film Transistor Array Substrate, TFT Array Substrate) and one
The liquid crystal layer (Liquid Crystal Layer) being filled between two substrates is formed.The relative inner of CF substrates and TFT substrate
Provided with transparency electrode.Liquid crystal display is controlled by electric field to the orientation of liquid crystal molecule, changes the polarization state of light, and by
Penetrating and stopping for light path is realized by Polarizer, reaches the purpose of display.
Active TFT-LCD display devices have obtained development at full speed and have been widely applied in recent years, it may be said that currently not
By the display for being big-and-middle small size, by TFT-LCD in occupation of absolute market.And in current LCD application markets, can
The terminal of the public place collected for megastore, supermarket, hotel lobby, movie theatre, education, medical treatment and other stream of peoples is shown
Screen has obtained increasing demand and application, and is just increased with annual more than 30% speed.Such public advertising display screen
There is the characteristics of common i.e.：Dust and moisture, outstanding, the low in energy consumption, wide viewing angle of radiating, high brightness and with certain anti-dazzle antireflection
Function.Based on the particularity of public advertising display screen use condition, distant, the stronger factor of ambient light is such as viewed and admired,
Its antireflection and anti-dazzle function seem more important.Prior art would generally be by being surface-treated to Polarizer so that
Public advertising display screen has certain mist degree (Haze), to play out of doors or under indoor bright light antireflection and anti-dazzle
Effect.At present, the conventional mist degree of public advertising display screen is usually 44% or so in the industry, and the Polarizer handled well pastes with LCD
After conjunction, mist degree is non-adjustable, causes the use condition of existing public advertising display screen to be limited, it is impossible to according to environmental light intensity change into
Row mist degree is adjusted.
On the other hand, PDLC (Polymer Dispersed Liquid Crystal, PDLC) is used as liquid
Crystalline substance light modulation valve, in recent years by extensive concern and use.PDLC is to mix low molecular weight liquid crystal and prepolymer, under certain condition
Aggregated reaction, form micron-sized liquid crystal droplet and be evenly dispersed in high molecular polymer network, recycle liquid crystal molecule
Dielectric anisotropy obtain with electro-optic response characteristic material, it operates mainly between scattering states and transparent state and had
Certain gray scale.PDLC liquid crystal displays have lot of advantages, such as are not required to polarizer and oriented layer, and preparation technology is simple, easily
In large area flexible display etc. is made, at present in optical modulator, temperature-sensitive and pressure-sensitive device, automatically controlled glass, light valve, projection
It has been shown that, e-book etc. are applied.
The operation principle of PDLC liquid crystal displays is：In the case of without applied voltage, it is intermembranous can not be formed it is regular
Electric field, the direction of optic axis of liquid crystal particle is random, and disordered state, its effective refractive index not index matching with polymer is presented.
Incident ray is scattered strongly, and film is in opaque or translucent；In the case of being applied with external voltage, the optical axis of liquid crystal particle
Arranged perpendicular to film surface, i.e., consistent with direction of an electric field, the effective refractive index of liquid crystal particle and the refractive index of polymer are basic
Matching, without obvious interface, constitutes a substantially homogeneous medium, incident light will not scatter, the transparent shape of film.Therefore,
Under the driving of extra electric field, PDLC possesses switch feature, and its transparency can also with applying alive increase and
Improve.
However, PDLC liquid crystal displays have visual angle it is limited the shortcomings that because：PDLC liquid crystal displays after power-up
Interior liquid crystal molecule is presented by unordered to orderly arrangement, after the voltage saturation of application, liquid crystal molecule perpendicular to substrate arrangement,
Light can not carry out the outgoing in multi-angle direction through it well, and this causes do not have the sight at positive visual angle when big visual angle is watched
It is good to appreciate effect.
The content of the invention
It is an object of the invention to provide a kind of preparation method of public advertising display screen, by public made from this method
Ad display screen has preferably big visual angle appreciation effect, and can change according to environmental light intensity and carry out mist degree regulation, effectively suitable
Degree ground resists dizzy, antireflection, lifts display effect.
The present invention also aims to provide a kind of public advertising display screen, there is preferably big visual angle appreciation effect, and
It can change according to environmental light intensity and carry out mist degree regulation, effectively moderately resist dizzy, antireflection, lift display effect.
To achieve the above object, the present invention provides a kind of preparation method of public advertising display screen, comprises the following steps：
Step 1, a first substrate is provided, optical brightening membrane is pasted with the first substrate；
The surface irregularity of the optical brightening membrane, including the first lug boss of multiple interconnections and be formed at every
The first depressed part between two neighboring first lug boss；
Step 2, a second substrate is provided, dimethyl silicone polymer is coated with the second substrate；
Step 3, will first it be pasted with the first substrate of optical brightening membrane and the second base with polydimethylsiloxanefilm film
Plate carries out curing process to group, then to polydimethylsiloxanefilm film, by the shape transfer of optical brightening membrane surface irregularity
Onto polydimethylsiloxanefilm film so that polydimethylsiloxanefilm film surface is also uneven；
Step 4, first substrate and second substrate separated, sputtered respectively on the optical brightening membrane of first substrate side saturating
Bright conductive film forms the first non-planar electrode, and electrically conducting transparent is sputtered in the polydimethylsiloxanefilm film of second substrate side
Film forms the second non-planar electrode；
Step 5, PDLC is titrated on one of first substrate and second substrate, on another substrate
It is coated with frame adhesive；Then by first substrate and second substrate to group being bonded；Then UV light irradiations are carried out, complete polymer dispersion liquid
The making of brilliant box；
Step 6, a common TFT-LCD liquid crystal panels are provided, the PDLC box is fixed on TFT-LCD
The outside of liquid crystal panel, the PDLC box combine composition public advertising with common TFT-LCD liquid crystal panels and shown
Display screen；
Step 7, by being applied to the first non-planar electrode in the PDLC box with the second non-planar electrode
Add the voltage of varying strength to change the transparency of PDLC box, so as to adjust the mist degree of public advertising display screen.
The polydimethylsiloxanefilm film of surface irregularity includes the second lug boss of multiple interconnections and is formed at
The second depressed part between per two neighboring second lug boss, and the second lug boss and the first depressed part are complementary, the second depressed part
It is complementary with the first lug boss.
The surface of the optical brightening membrane is serrated, first lug boss, the first depressed part, the second lug boss and
The cross sectional shape of second depressed part is triangle.
It is 50~60 DEG C DEG C to the temperature of the polydimethylsiloxanefilm film progress curing process of liquid in the step 3,
Hardening time is 4~5 hours；The time of UV light irradiations is 10~15min in the step 5.
The optical brightening membrane is made up of pet film.
There is sept in the frame adhesive that is coated with the step 5, pass through the sept and PDLC
The thickness of titer control polymer dispersed liquid crystal layer is not more than 10um.
The time of UV light irradiations is 12min in the step 5.
The present invention also provides a kind of public advertising display screen, including common TFT-LCD liquid crystal panels and is fixed on institute
State the PDLC box on the outside of TFT-LCD liquid crystal panels；
The PDLC box includes the first substrate and second substrate being oppositely arranged；The first substrate direction
The side of second substrate is pasted with rough optical brightening membrane and the first on-plane surface electricity on the optical brightening membrane
Pole；The surface irregularity of the optical brightening membrane, including the first lug boss of multiple interconnections and be formed at per adjacent two
The first depressed part between individual first lug boss；
The second substrate towards the side of first substrate be provided with surface irregularity polydimethylsiloxanefilm film and
The second non-planar electrode located at the polydimethylsiloxanefilm film surface；
Polymer dispersed liquid crystal layer, the polymerization are folded between first non-planar electrode and the second non-planar electrode
Thing dispersing liquid crystal layer periphery is provided with the frame adhesive (19) for being used for encapsulating first substrate and second substrate.
The uneven surface of the polydimethylsiloxanefilm film includes the second lug boss and shape of multiple interconnections
The second depressed part between every two neighboring second lug bosses of Cheng Yu；First lug boss is corresponding with the second depressed part, institute
It is corresponding with the second lug boss to state the first depressed part；First non-planar electrode is consistent with the second non-planar electrode shape and phase
It is mutually parallel.
The surface of the optical brightening membrane is serrated, first lug boss, the first depressed part, the second lug boss and
The cross sectional shape of second depressed part is triangle.
There is sept in the frame adhesive, the thickness of polymer dispersed liquid crystal layer is not more than 10um.
Beneficial effects of the present invention：A kind of preparation method of public advertising display screen provided by the invention, it polymerize making
By in the shape transfer of optical brightening membrane surface irregularity to polydimethylsiloxanefilm film during thing dispersed LCD box, in optics
The first non-planar electrode is formed in brightness enhancement film, the second non-planar electrode is formed in polydimethylsiloxanefilm film, then will polymerization
Thing dispersed LCD box is fixed on the outside of a common TFT-LCD liquid crystal panels, and the two combination forms public advertising display screen；It is logical
Cross public advertising display screen made from this method and both make it that the exit direction of light was more, big visual angle appreciation effect is more preferable, and can
The enough voltage by applying varying strength to the first non-planar electrode in PDLC box and the second non-planar electrode
To change the transparency of PDLC box, mist degree regulation is carried out according to environmental light intensity change, is effectively moderately resisted dizzy, anti-
Reflection, lift display effect.A kind of public advertising display screen provided by the invention, by setting the first non-planar electrode and second
Non-planar electrode is more to cause the exit direction of light, and big visual angle appreciation effect is more preferable；PDLC box is fixed
On the outside of TFT-LCD liquid crystal panels, by the first non-planar electrode in PDLC box and the second on-plane surface electricity
Pole applies the voltage of varying strength to change the transparency of PDLC box, and mist degree tune is carried out according to environmental light intensity change
Section, effectively moderately resist dizzy, antireflection, lift display effect.
In order to be further understood that the feature of the present invention and technology contents, refer to below in connection with the detailed of the present invention
Illustrate and accompanying drawing, however accompanying drawing only provide with reference to and explanation use, be not used for being any limitation as the present invention.
Brief description of the drawings
Below in conjunction with the accompanying drawings, by the way that the embodiment of the present invention is described in detail, technical scheme will be made
And other beneficial effects are apparent.
In accompanying drawing,
Fig. 1 is the flow chart of the preparation method of public advertising display screen of the present invention；
Fig. 2 is the schematic diagram of the step 1 of the preparation method of public advertising display screen of the present invention；
Fig. 3 is the schematic diagram of the step 2 of the preparation method of public advertising display screen of the present invention；
Fig. 4 is the schematic diagram of the step 3 of the preparation method of public advertising display screen of the present invention；
Fig. 5 is the schematic diagram of the step 4 of the preparation method of public advertising display screen of the present invention；
Fig. 6 is that the schematic diagram of the step 5 of the preparation method of public advertising display screen of the present invention and public advertising of the present invention show
The schematic diagram of PDLC box in display screen；
Fig. 7 is that the schematic diagram of the step 6 of the preparation method of public advertising display screen of the present invention and public advertising of the present invention show
The structural representation of display screen；
Fig. 8 is the schematic diagram of the step 7 of the preparation method of public advertising display screen of the present invention；
Fig. 9 is the liquid crystal molecule in polymer dispersed liquid crystal layer in the present invention in the first non-planar electrode and the second on-plane surface
Electrode is not added with the arranging situation schematic diagram under electricity condition；
Figure 10 is that the liquid crystal molecule in the present invention in polymer dispersed liquid crystal layer is non-flat in the first non-planar electrode and second
Arranging situation schematic diagram under face electrode power-up but undersaturated condition；
Figure 11 is that the liquid crystal molecule in the present invention in polymer dispersed liquid crystal layer is non-flat in the first non-planar electrode and second
Arranging situation schematic diagram under the electrode power-up saturation state of face.
Embodiment
Further to illustrate the technological means and its effect of the invention taken, below in conjunction with being preferable to carry out for the present invention
Example and its accompanying drawing are described in detail.
Referring to Fig. 1, present invention firstly provides a kind of preparation method of public advertising display screen, comprise the following steps：
Step 1, as shown in Figure 2, there is provided a first substrate 11, optical brightening membrane 13 is attached on first substrate 11.Institute
State the surface irregularity of optical brightening membrane 13, including the first lug boss 131 of multiple interconnections and be formed at per adjacent two
The first depressed part 132 between individual first lug boss 131.
Specifically, the first substrate 11 is preferably glass substrate.
The optical brightening membrane 13 is made up of high temperature resistance polyester film such as polyethylene terephthalate (PET) film.
It is preferred that the surface of the optical brightening membrane 13 is serrated, the depressed part 132 of the first lug boss 131 and first
Cross sectional shape is triangle.
Step 2, as shown in Figure 3, there is provided a second substrate 12, it is molten to configure certain density dimethyl silicone polymer (PDMS)
Liquid, it is spin-coated on formation polydimethylsiloxanefilm film 14 on the second substrate 12.
Specifically, the second substrate 12 is preferably glass substrate.
Step 3, as shown in figure 4, will first the first substrate 11 for being pasted with optical brightening membrane 13 and there are polydimethylsiloxanes
The second substrate 12 of alkane film 14 is carried out 4~5 hours to group, then with 50~60 DEG C of temperature to polydimethylsiloxanefilm film 14
Curing process, by the shape transfer of the surface irregularity of optical brightening membrane 13 to polydimethylsiloxanefilm film 14 so that poly-
The surface of dimethyl siloxane film 14 is also uneven, including the second lug boss 141 of multiple interconnections and is formed at every phase
The second depressed part 142 between adjacent two the second lug bosses 141, and the second lug boss 141 and the first depressed part 132 are complementary, the
Two depressed parts 142 and the first lug boss 131 are complementary.
Specifically, the cross sectional shape of the depressed part 142 of the second lug boss 141 and second is also triangle.
Step 4, as shown in figure 5, first substrate 11 and second substrate 12 are separated, respectively in the light of the side of first substrate 11
Transparent ITO conductive films formation is sputtered in brightness enhancement film 13 surface of optical brightening membrane 13 is uninterruptedly covered with uniform thickness
The first non-planar electrode 15, it is conductive that transparent ITO is sputtered in the polydimethylsiloxanefilm film 14 of the side of second substrate 12
Film forms the second non-planar electrode 16 that the surface of polydimethylsiloxanefilm film 14 is uninterruptedly covered with uniform thickness.
First non-planar electrode 15 rises and falls according to the shape height of the surface irregularity of optical brightening membrane 13, and described the
Two non-planar electrodes 16 rise and fall according to the shape height of the surface irregularity of polydimethylsiloxanefilm film 14.
Step 5, as shown in fig. 6, being titrated on one of first substrate 11 and second substrate 12 preprepared
PDLC, frame adhesive 19 is coated with another substrate；Then by first substrate 11 and second substrate 12 to group being bonded,
So that first lug boss 131 and the phase of 142 132 and second lug boss of corresponding, described first depressed part of the second depressed part 141
It is corresponding, so that the first non-planar electrode 15 is consistent with the shape of the second non-planar electrode 16 and is parallel to each other；Then 10 are carried out
~15min UV light irradiations, on the one hand cause the prepolymer in PDLC that polymerisation occurs and forms high molecular polymerization
Thing network, liquid crystal particle are scattered in formation polymer dispersed liquid crystal layer 17 in the high molecular polymer network, on the other hand make side
Frame glue 19 solidifies, and completes the making of PDLC box 1.
Preferably, the mixed proportion of prepolymer and nematic crystal is weight than 50 in the PDLC:50.
Acrylate and its derivative, methacrylate and its derivative, Styrene and its derivatives, ring may be selected in the prepolymer
One or more of combinations of oxygen tree fat and fatty amines epoxy hardener.
It is noted that there is sept (Spacer) (not shown) in the frame adhesive 19 being coated with the step 5, pass through
The thickness of the titer control polymer dispersed liquid crystal layer 17 of the sept and PDLC is not more than 10um.
Step 6, as shown in Figure 7, there is provided a common TFT-LCD liquid crystal panels 2, by the PDLC box 1
It is fixed on the outside of TFT-LCD liquid crystal panels 2, the PDLC box 1 and 2 groups common of TFT-LCD liquid crystal panels
Close and form public advertising display screen.
The common TFT-LCD liquid crystal panels 2 by CF substrates, tft array substrate and are filled between two substrates
The liquid crystal panel that liquid crystal layer is formed, its concrete structure are prior art, herein not reinflated detailed description.
Step 7, as shown in figure 8, strong and weak according to ambient, by first in the PDLC box 1
Non-planar electrode 15 and the second non-planar electrode 16 apply the voltage of varying strength to change the transparent of PDLC box 1
Degree, so as to adjust the mist degree of public advertising display screen.
Refer to Fig. 9, Figure 10, Figure 11, in public advertising display screen obtained by this method, polymer dispersed liquid crystal layer 17
Interior liquid crystal molecule is in the state of the first non-planar electrode 15 and the second non-planar electrode 16 are not powered in disorderly arranged.Right
First non-planar electrode 15 and the second non-planar electrode 16 power up but in the state of unsaturation, due to the first non-planar electrode 15 with
The shape of second non-planar electrode 16 is consistent and is parallel to each other, and the liquid crystal molecule in polymer dispersed liquid crystal layer 17 is in different directions electricity
Arranged in the presence of by different angle direction so that the exit direction of light is more, and big visual angle appreciation effect is more preferable, same with this
When, the first non-planar electrode 15 in the PDLC box 1 is applied with the second non-planar electrode 16 by changing
The intensity of voltage, mist degree can be adjusted, effectively moderately resist dizzy, antireflection, lift display effect, i.e. ambient is weaker, then
The voltage strength applied to the first non-planar electrode 15 in the PDLC box 1 with the second non-planar electrode 16 is got over
Greatly, the transparency of PDLC box 1 is bigger, smaller so as to which the mist degree of public advertising display screen be adjusted；It is and extraneous
Light is stronger, then the first non-planar electrode 15 in the PDLC box 1 is applied with the second non-planar electrode 16
Voltage strength it is smaller, the transparency of PDLC box 1 is smaller, so as to adjust the mist degree of public advertising display screen
It is bigger.In the state of saturation is powered up to the non-planar electrode 16 of the first non-planar electrode 15 and second, polymer dispersion liquid
More homogeneous arrangement is presented in liquid crystal molecule in crystal layer 17 in the presence of different directions electric field by different angle direction, but
Light can be emitted along multi-angle direction, ensure big visual angle appreciation effect.
Please refer to Fig. 6, Fig. 7, Fig. 8, on the basis of the preparation method of above-mentioned public advertising display screen, the present invention is also
A kind of public advertising display screen is provided, including common TFT-LCD liquid crystal panels 2 and is fixed on the TFT-LCD liquid crystal surfaces
The PDLC box 1 in the outside of plate 2.
The PDLC box 1 includes the first substrate 11 being oppositely arranged and second substrate 12.First base
The side of plate 11 towards second substrate 12 is pasted with rough optical brightening membrane 13 and on the optical brightening membrane 13
The first non-planar electrode 15；The second substrate 12 is provided with the poly- diformazan of surface irregularity towards the side of first substrate 11
Radical siloxane film 14 and the second non-planar electrode 16 located at the surface of polydimethylsiloxanefilm film 14；Described first is non-
Polymer dispersed liquid crystal layer 17, the polymer dispersed liquid crystal layer are folded between the non-planar electrode 16 of plane electrode 15 and second
17 peripheries are provided with the frame adhesive 19 for being used for encapsulating first substrate 11 and second substrate 12.
The uneven surface of the optical brightening membrane 13 includes the first lug boss 131 of multiple interconnections and formed
The first depressed part 132 between per two neighboring first lug boss 131；The uneven table of polydimethylsiloxanefilm film 14
Second between face includes the second lug boss 141 of multiple interconnections and is formed at per two neighboring second lug boss 141 is recessed
Fall into portion 142；First lug boss 131 and 142 corresponding, the described lug boss of first depressed part 132 and second of the second depressed part
141 is corresponding；First non-planar electrode 15 is consistent with the shape of the second non-planar electrode 16 and is parallel to each other.
Preferably, the surface of the optical brightening membrane 13 is serrated, first lug boss 131, the first depressed part
132nd, the cross sectional shape of the second lug boss 141 and the second depressed part 142 is triangle.
The material of the optical brightening membrane 13 is high temperature resistance polyester film such as PET film.
The material of the non-planar electrode 16 of first non-planar electrode 15 and second is ito thin film.
There is sept in the frame adhesive 19, the thickness of polymer dispersed liquid crystal layer 17 is not more than 10um.
The public advertising display screen structure by set the first non-planar electrode 15 and the second non-planar electrode 16 come
The exit direction of light is more, and big visual angle appreciation effect is more preferable；By to the first on-plane surface electricity in PDLC box 1
Pole 15 and second non-planar electrode 16 applies the voltage of varying strength to change the transparency of PDLC box 1, foundation
Environmental light intensity change carries out mist degree regulation, effectively moderately resists dizzy, antireflection, lifts display effect.
Specifically, Fig. 9, Figure 10, Figure 11 are referred to, in the public advertising display screen structure, polymer dispersed liquid crystal layer 17
Interior liquid crystal molecule is in the state of the first non-planar electrode 15 and the second non-planar electrode 16 are not powered in disorderly arranged.Right
First non-planar electrode 15 and the second non-planar electrode 16 power up but in the state of unsaturation, due to the first non-planar electrode 15 with
The shape of second non-planar electrode 16 is consistent and is parallel to each other, and the liquid crystal molecule in polymer dispersed liquid crystal layer 17 is in different directions electricity
Arranged in the presence of by different angle direction so that the exit direction of light is more, and big visual angle appreciation effect is more preferable, same with this
When, the first non-planar electrode 15 in the PDLC box 1 is applied with the second non-planar electrode 16 by changing
The intensity of voltage, mist degree can be adjusted, effectively moderately resist dizzy, antireflection, lift display effect, i.e. ambient is weaker, then
The voltage strength applied to the first non-planar electrode 15 in the PDLC box 1 with the second non-planar electrode 16 is got over
Greatly, the transparency of PDLC box 1 is bigger, smaller so as to which the mist degree of public advertising display screen be adjusted；It is and extraneous
Light is stronger, then the first non-planar electrode 15 in the PDLC box 1 is applied with the second non-planar electrode 16
Voltage strength it is smaller, the transparency of PDLC box 1 is smaller, so as to adjust the mist degree of public advertising display screen
It is bigger.In the state of saturation is powered up to the non-planar electrode 16 of the first non-planar electrode 15 and second, polymer dispersion liquid
More homogeneous arrangement is presented in liquid crystal molecule in crystal layer 17 in the presence of different directions electric field by different angle direction, but
Light can be emitted along multi-angle direction, ensure big visual angle appreciation effect.
In summary, the preparation method of public advertising display screen of the invention, will when making PDLC box
The shape transfer of optical brightening membrane surface irregularity forms first in polydimethylsiloxanefilm film on optical brightening membrane
Non-planar electrode, the second non-planar electrode is formed in polydimethylsiloxanefilm film, then PDLC box is fixed
In the outside of a common TFT-LCD liquid crystal panels, the two combination forms public advertising display screen；By public made from this method
Ad display screen both make it that the exit direction of light was more altogether, and big visual angle appreciation effect is more preferable, and and can is enough by polymer point
The voltage for dissipating the first non-planar electrode and the second non-planar electrode application varying strength in liquid crystal cell disperses to change polymer
The transparency of liquid crystal cell, mist degree regulation is carried out according to environmental light intensity change, effectively moderately resist dizzy, antireflection, lifting display effect
Fruit.The public advertising display screen of the present invention, by setting the first non-planar electrode and the second non-planar electrode come light
Exit direction is more, and big visual angle appreciation effect is more preferable；PDLC box is fixed on the outside of TFT-LCD liquid crystal panels,
By apply the voltage of varying strength to the first non-planar electrode in PDLC box and the second non-planar electrode come
Change the transparency of PDLC box, carry out mist degree regulation according to environmental light intensity change, effectively moderately resist dizzy, anti-reflective
Penetrate, lift display effect.
It is described above, for the person of ordinary skill of the art, can be with technique according to the invention scheme and technology
Other various corresponding changes and deformation are made in design, and all these changes and deformation should all belong to the claims in the present invention
Protection domain.
Claims (10)
1. a kind of preparation method of public advertising display screen, it is characterised in that comprise the following steps：
Step 1, a first substrate (11) is provided, optical brightening membrane (13) is attached on the first substrate (11)；
The surface irregularity of the optical brightening membrane (13), including the first lug boss (131) of multiple interconnections and formation
The first depressed part (132) between per two neighboring first lug boss (131)；
Step 2, a second substrate (12) is provided, dimethyl silicone polymer is coated on the second substrate (12)；
Step 3, the first substrate (11) that will be first pasted with optical brightening membrane (13) and there is polydimethylsiloxanefilm film (14)
Second substrate (12) to group, then to polydimethylsiloxanefilm film (14) carry out curing process, by optical brightening membrane (13) table
The rough shape transfer in face is in polydimethylsiloxanefilm film (14) so that polydimethylsiloxanefilm film (14) surface
Also it is uneven；
Step 4, first substrate (11) and second substrate (12) separated, respectively in the optical brightening membrane of first substrate (11) side
(13) transparent conductive film is sputtered on and forms the first non-planar electrode (15), the polydimethylsiloxanes in second substrate (12) side
Transparent conductive film is sputtered on alkane film (14) and forms the second non-planar electrode (16)；
Step 5, the titration PDLC on one of first substrate (11) and second substrate (12), in another base
Frame adhesive (19) is coated with plate；Then by first substrate (11) and second substrate (12) to group being bonded；Then UV light irradiations are carried out,
Complete the making of PDLC box (1)；
Step 6, a common TFT-LCD liquid crystal panels (2) are provided, the PDLC box (1) is fixed on TFT-
The outside of LCD (2), the PDLC box (1) combine structure with common TFT-LCD liquid crystal panels (2)
Into public advertising display screen；
Step 7, by the first non-planar electrode (15) in the PDLC box (1) and the second non-planar electrode
(16) voltage for applying varying strength changes the transparency of PDLC box (1), shows so as to adjust public advertising
The mist degree of screen.
2. the preparation method of public advertising display screen as claimed in claim 1, it is characterised in that poly- the two of surface irregularity
Methylsiloxane film (14) includes the second lug boss (141) of multiple interconnections and is formed at convex per two neighboring second
The second depressed part (142) between portion (141) is played, and the second lug boss (141) is complementary with the first depressed part (132), second is recessed
It is complementary with the first lug boss (131) to fall into portion (142).
3. the preparation method of public advertising display screen as claimed in claim 2, it is characterised in that the optical brightening membrane (13)
Surface be serrated, first lug boss (131), the first depressed part (132), the second lug boss (141) and second depression
The cross sectional shape in portion (142) is triangle.
4. the preparation method of public advertising display screen as claimed in claim 1, it is characterised in that to poly- two in the step 3
The temperature that methylsiloxane film (14) carries out curing process is 50~60 DEG C, and hardening time is 4~5 hours；In the step 5
The time of UV light irradiations is 10~15min.
5. the preparation method of public advertising display screen as claimed in claim 1, it is characterised in that the optical brightening membrane (13)
It is made up of pet film.
6. the preparation method of public advertising display screen as claimed in claim 1, it is characterised in that be coated with the step 5
There is sept in frame adhesive (19), polymer dispersion liquid is controlled by the titer of the sept and PDLC
The thickness of crystal layer (17) is not more than 10um.
7. the public advertising display screen made by a kind of preparation method of public advertising display screen according to claim 1,
It is characterised in that it includes common TFT-LCD liquid crystal panels (2) and being fixed on the outside of the TFT-LCD liquid crystal panels (2)
PDLC box (1)；
The PDLC box (1) includes the first substrate (11) being oppositely arranged and second substrate (12)；Described first
The side of substrate (11) towards second substrate (12) is pasted with rough optical brightening membrane (13) and increased located at the optics
The first non-planar electrode (15) on bright film (13)；The surface irregularity of the optical brightening membrane (13), including it is multiple mutual
The first lug boss (131) of connection and the first depressed part (132) being formed between every two neighboring first lug boss (131)；
The dimethyl silicone polymer that the second substrate (12) is provided with surface irregularity towards the side of first substrate (11) is thin
Film (14) and the second non-planar electrode (16) located at the polydimethylsiloxanefilm film (14) surface；
Polymer dispersed liquid crystal layer (17) is folded between first non-planar electrode (15) and the second non-planar electrode (16),
Polymer dispersed liquid crystal layer (17) periphery is provided with the frame adhesive for being used for encapsulating first substrate (11) and second substrate (12)
(19)。
8. public advertising display screen as claimed in claim 7, it is characterised in that the polydimethylsiloxanefilm film (14)
Uneven surface includes the second lug boss (141) of multiple interconnections and is formed at per two neighboring second lug boss
(141) the second depressed part (142) between；First lug boss (131) is corresponding with the second depressed part (142), described
One depressed part (132) is corresponding with the second lug boss (141)；First non-planar electrode (15) and the second non-planar electrode
(16) shape is consistent and is parallel to each other.
9. public advertising display screen as claimed in claim 8, it is characterised in that the surface of the optical brightening membrane (13) is in saw
Dentation, first lug boss (131), the first depressed part (132), the second lug boss (141) and the second depressed part (142)
Cross sectional shape is triangle.
10. public advertising display screen as claimed in claim 7, it is characterised in that there is sept in the frame adhesive (19),
The thickness of polymer dispersed liquid crystal layer (17) is not more than 10um.
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| CN105974631B (en) * | 2016-07-13 | 2019-04-30 | 深圳市华星光电技术有限公司 | Flexible base board and preparation method thereof and flexible liquid crystal panel |
| CN107132707B (en) | 2017-05-24 | 2019-10-22 | 京东方科技集团股份有限公司 | A kind of liquid crystal display panel and preparation method thereof |
| CN107611535A (en) * | 2017-08-23 | 2018-01-19 | 电子科技大学 | Liquid crystal microwave device based on polymorphic structure |
| CN112799247B (en) * | 2019-11-14 | 2023-02-07 | 京东方科技集团股份有限公司 | Liquid crystal display assembly, preparation method thereof and liquid crystal display |
| CN112180601B (en) * | 2020-09-30 | 2022-05-31 | 厦门天马微电子有限公司 | Display module assembly and car |
| CN112764278B (en) * | 2021-01-05 | 2022-09-09 | 惠州市华星光电技术有限公司 | Liquid crystal display panel and liquid crystal display device |
| CN216902149U (en) * | 2022-01-21 | 2022-07-05 | 惠州Tcl移动通信有限公司 | Display screen |
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