CN1078049A - Optical phase-retardation compensating film - Google Patents
Optical phase-retardation compensating film Download PDFInfo
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- CN1078049A CN1078049A CN93105175A CN93105175A CN1078049A CN 1078049 A CN1078049 A CN 1078049A CN 93105175 A CN93105175 A CN 93105175A CN 93105175 A CN93105175 A CN 93105175A CN 1078049 A CN1078049 A CN 1078049A
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- optical phase
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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
- G02F1/13363—Birefringent elements, e.g. for optical compensation
-
- 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
- G02F1/13363—Birefringent elements, e.g. for optical compensation
- G02F1/133633—Birefringent elements, e.g. for optical compensation using mesogenic materials
-
- 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
- G02F2203/00—Function characteristic
- G02F2203/62—Switchable arrangements whereby the element being usually not switchable
Abstract
A kind of optical phase-retardation compensating film that adopts Polymer Dispersed Liquid Crystal comprises: polymeric layer 20 has the liquid crystal 10 that is the bead state or mixes therein in abutting connection with ground; The protection member, in order to the protection polymeric layer, wherein liquid crystal has predetermined optical phase-retardation compensating value.In addition, the both sides of polymeric layer also be provided with transparent electrode 30 and 30 ', thereby by on each electrode, add bucking voltage with the compensation liquid crystal orientation.When being applied in the LCD, the characteristic of optical phase-retardation compensating film can correspondingly be regulated because of the variation that the variation of environment temperature causes according to the photocontrol of LCD, thus the phase delay of compensate for optical effectively.
Description
The present invention relates to a kind of film that compensate for optical phase delay is used, more particularly, relate to a kind of optical phase-retardation compensating film that adopts Polymer Dispersed Liquid Crystal.
By convention, macromolecule membrane is arranged in order to make its molecular anisotropy ground, be stretched in one direction, thereby this oriented film can be used as anisotropic optical phase-retardation compensating film on optical property.In addition, the molecule of liquid crystal polymer (LCP) also is to form full of twists and turns structure through aligning, thereby adds the formula LCP of turning round and also can be used as the optical phase put-off film.
As shown in Figure 1, former optical phase-retardation compensating film be macromolecule membrane 1 with the tool birefringenct property after bonding coat 4 adheres on the plate 3, panel 2 is attached to makes on the film 1 again.Traditional this optical phase-retardation compensating film influences the variation of transmitted light phase delay by means of macromolecule membrane.Here macromolecule membrane is produced like this: the common film that is made of polycarbonate or polystyrene that stretches in one direction makes its molecule become anisotropy, thereby has birefringenct property.
General optical phase put-off film mainly is used on the LCD to manage to improve the quality of image.Yet,, thereby in practicality, can not fully satisfy desired purposes because general optical phase put-off film is different with the liquid crystal in the display device that adopts this film aspect physical property.This be because, though the elite place of this display device of birefringenct property of liquid crystal is to change with light wavelength and variation of temperature, but its degree of compensation to optical phase put-off of general optical phase-retardation compensating film is pre-designed, thereby has hindered the compensating action to the delay that himself causes because of environmental change.Therefore optical phase put-off can not correspondingly be compensated with the liquid crystal birefringence changes of properties effectively.
In addition, LCP now is that the LCP with the tool cholesteric phase at high temperature is dissolved in the solvent, the molecule that again LCP that draws is coated to the surface in advance on the substrate that aligns, thereby make the same thin the producing of LCP with film.This LCP has such shortcoming, and promptly its optical property that changes with variation of temperature is difficult to turn round nematic liquid crystal with super strand and is complementary, and since the molecular weight difference to make it have identical optical property and have any problem.In addition, owing to must need a substrate, thereby can not make below it is thinned to a certain degree.
The purpose of this invention is to provide a kind of can be according to the optical phase-retardation compensating film of the corresponding effectively compensate for optical phase delay of variation of LCD birefringenct property.
Another object of the present invention provides a kind of adjustable optical phase delay compensation film that can change corresponding effectively compensate for optical phase delay according to the birefringenct property of LCD.
For realizing above-mentioned purpose of the present invention; optical phase-retardation compensating film provided by the invention comprises polymerization and protection member; liquid crystal is dispersed in the polymkeric substance of polymeric layer with the form of bead state or interconnection each other; the protection member then plays the protection polymeric layer; wherein liquid crystal is orientated by predetermined direction, thereby has predetermined optical phase-retardation compensating value.
In addition; above-mentioned optical phase-retardation compensating film comprises the protection member of the polymeric layer that contains the liquid crystal that looses with the bead state, this polymer layer and is located at the transparency electrode of polymeric layer both sides, thereby utilizes the orientation of the bucking voltage compensation liquid crystal that is added on each electrode.
In optical phase-retardation compensating film of the present invention, each liquid crystal bead can spread out severally, thereby causes swing offset, or interconnects with the liquid crystal bead that adjoins, thereby forms a network.In addition, after being dispersed in monomer layer as polymeric layer, liquid crystal can make its orientation by the common postprocessing working procedures for polymerization single polymerization monomer.Aftertreatment is carried out to such an extent that polymeric layer is stretched, thereby makes the polymkeric substance anisotropy, and liquid crystal also is orientated.Not so also can establish rubbing alignment layer in the polymeric layer both sides.Polyimide layer for example.Like this, liquid crystal can be orientated by predetermined direction and need not be by aftertreatment, thereby makes liquid crystal have predetermined optical phase-retardation compensating value.This can carry out with the stretching of polymkeric substance.
Describe a bright most preferred embodiment of the present invention in detail referring to the accompanying drawing sample below, can more clearly understand above-mentioned purpose of the present invention and other advantage thus.In the accompanying drawing:
Fig. 1 is the schematic sectional view of general optical phase-retardation compensating film;
Fig. 2 is the schematic sectional view of an embodiment of fixed optics phase delay compensation film of the present invention;
Fig. 3 is the schematic sectional view of another embodiment of fixed optics phase delay compensation film of the present invention;
Fig. 4 and 5 is schematic sectional views of fixed optics phase delay compensation film other embodiment of the present invention;
Fig. 6 is the schematic sectional view of an embodiment of adjustable optical phase delay compensation film of the present invention;
Fig. 7 is the schematic sectional view of another embodiment of adjustable optical phase delay compensation film of the present invention;
Fig. 8 is the adjustable optical phase delay compensation film of the present invention schematic sectional view of another embodiment again;
Fig. 9 and 10 represents the light transmission curve of optical phase-retardation compensating film of the present invention and common liquid crystals respectively.
Optical phase-retardation compensating film of the present invention divides two kinds, and a kind of is fixed, and promptly its phase compensation value is fixed, and another kind of adjustable, promptly its phase compensation value is adjustable.Therefore, to separately illustrate below.
Fig. 2 shows first embodiment of fixed optics phase delay compensation film of the present invention, and wherein the preorientation of liquid crystal obtains by its structure person's character.Here adopted the common polymerisable liquid crystal that supplies display device to use that a small amount of dispersed liquid crystal is produced in polymkeric substance.In case of necessity, be anisotropy for making molecular structure, in one direction strained polymer.By this processing, liquid crystal is orientated by certain orientation.At first, respectively with polyimide alignment layers 30 and 30 ' and macromolecule membrane 40 and 40 ' be deposited on the top side and bottom side of polymeric layer 20, wherein liquid crystal 10 scatter with the bead state successively.The macromolecule membrane 40 of downside ' after bonding coat 50 adheres to is on the plate 70, and 60 of panels are deposited on molecular film 40 tops of upside.
In this structure, thereby can locally adopt oriented layer when liquid crystal structurally is orientated as mentioned above polymeric layer being stretched, also can adopt oriented layer fully.In addition, oriented layer is determined the direction of orientation of liquid crystal 10 each molecule, and this direction of orientation is a foundation with the optical phase-retardation compensating value then.If polymeric layer is by above-mentioned such stretching, then direction of orientation must be parallel to draw direction.
On the other hand, Fig. 3,4 and 5 simply shows other embodiments of the invention.Here, Fig. 3 shows the optical phase-retardation compensating film of having cancelled the panel 60 that is applied among first embodiment.Fig. 4 is based on polymer network liquid crystal (PNLC) structure, and wherein liquid crystal 10 interconnects in polymkeric substance as network.Among Fig. 5, liquid crystal 10 is mixed into gel with polymkeric substance 20.
Fig. 6 schematically shows first embodiment of adjustable optical phase delay compensation film of the present invention.
In view of the angle of orientation of liquid crystal in the polymeric layer with being added to electrode 30 and 30 ' go up adjustable voltage to change, thereby can regulate the phase place of the light that passes polymeric layer.On the other hand, for making liquid crystal aligning, polymeric layer 20 can be stretched in one direction.In the case, though not past electrode 30 and 30 ' go up making alive, also can obtain certain fixing optical phase offset.In addition, also can change fixing optical phase offset when on each electrode, adding predetermined voltage, thereby draw desired offset.
Fig. 7 and 8 shows the second and the 3rd embodiment of adjustable optical phase delay compensation film of the present invention.Here, on the structure of first embodiment, added oriented layer 50 and 50 ', so that resemble the fixedly optical phase of liquid crystal compensation the strained polymer layer.At this moment, it is local certainly the position of polymeric layer being stretched.The stretching of polymeric layer brings convenience together with the adjusting that adds to fixed optics phase compensation of oriented layer.
Here, oriented layer has determined to be the direction of orientation of liquid crystal 10 each molecule of bead state, and this direction is a foundation with the offset of optical phase put-off then.Stretch above-mentioned if polymeric layer resembles, then direction of orientation must be parallel to the direction of stretching.
In adjustable optical phase delay compensation film of the present invention, be dispersed in liquid crystal in the polymeric layer and can be used as non-adjacent bead and spread out individually, form the such PNCL of embodiment as shown in Figure 4 thereby also can interconnect each other.In addition, liquid crystal also can be gel state, as shown in Figure 8.
The following describes the manufacture method of above-mentioned optical phase-retardation compensating film of the present invention.
During beginning, a small amount of polymkeric substance that structure is identical with liquid crystal molecule adds in the liquid crystal, and molecule is arranged by certain way.Liquid crystal aligning layer will form in a minimum side and the outside of liquid crystal layer, and liquid crystal molecule is orientated by certain orientation, and this little weight polymers is also caused having same orientation.The method that forms oriented layer adopts and the same method of common liquid crystals oriented layer, though the tilt angle that forms with the oriented layer normal is with the LCD(LCD that adopts same liquid crystal) and different, the scope of this tilt angle is usually at 0-90 °.All liquid crystal, no matter its anisotropic specific inductive capacity be negative just be, all can be adopted, particularly the twin shaft nematic liquid crystal also can be used.Polymkeric substance is produced like this: monomer and liquid crystal and light trigger are in a small amount mixed, compound is injected the space of cavity, shone with ultraviolet ray then, so that carry out polymerization.
The mixing ratio of polymkeric substance is the 0.1-20% of liquid crystal weight, and light trigger then suitably adds by amount of monomer.If irradiation ultraviolet radiation limit, limit applies suitable electric field of an intensity or magnetic field toward whole liquid crystal layer, then can freely choose the direction of orientation of liquid crystal.The thickness of liquid crystal layer is the 1-30 micron, for keeping thickness even, can sneak into general spherula or bar-shaped parting bead.Liquid crystal aligning layer at clear glass, the glass that scribbles ITO, polycarbonate film, poly-acetate film, scribble formation above the thin polymer film etc. of ITO.
In mixed process, suitably heat monomer and liquid crystal, can quicken mixed process.In addition, suitably add heat mixture when injecting polymerization tank, can accelerate injection process, prevent that simultaneously compound from separating.Heated polymerizable groove in the process of irradiation ultraviolet radiation, the polymerization process that can regulate monomer.Usually, polymerization process is at high temperature accelerated, and material can be mixed from start to finish.
As long as during a planar orientation, direction of orientation often keeps in one direction, and the orientation of another side then must slightly be handled in this respect.It is so good when at this moment, the arrangement of liquid crystal molecule all is orientated with regard to not resembling the two sides.Here lift polymkeric substance friction, LB-PI(laser beam-polyisoprene) and SiO
2Sedimentation as an example of alignment method.Any method all can not definitely weaken the orientation effect, but we think and adopt polymkeric substance without friction, corrode and apply can play a part to a certain extent to weaken with methods such as non crystallized inorganic material with weak acid solution and be orientated.
When the two sides all will be orientated, then the direction of orientation of two sides liquid crystal should be got 0-180 °, and this depends on the frictional direction that resembles polyimide and so on oriented material.In the case, liquid crystal and polymer molecule are arranged in parallel each other in one direction.Like this, because the arrangement of molecule is anisotropic, thereby produce the phenomenon of photoanisotropy refraction.Usually, the birefraction of this liquid crystal is less than the birefraction of nematic liquid crystal, and it is with the difference of interaction between the content of polymkeric substance, manufacturing situation, each liquid crystal molecule etc. and different.At this moment, the birefraction of this liquid crystal is preferably in the scope of 0.005-0.35.
If the direction of two planar orientations is (non-vanishing) at an angle, then turn round ability for reaching desired strand, added chiral dopant in the nematic liquid crystal in the past, the strand amount of turning round wherein depends on the thickness and the formed angle of two sides direction of orientation of film.Should be noted that natural strand torsional angle and the difference between the formed angle of two directions of orientation that nematic liquid crystal forms because of chiral dopant should be less than 90 ° greater than-90 °.(the formed angle of two directions of orientation can greater than 360 °) be if difference not in this scope, then produces swing offset in the liquid crystal structure.
Embodiment 1
Friction glass is coated with the thick polyisoprene of 800 dusts (SE-150) afterwards, the product that is drawn is hardened.Then with the fast progress row friction of soft cloth with 12 meter per seconds.Make 100 to 200 about 6 microns beads of diameter be distributed on the area of each square millimeter.Used through ultraviolet curing encapsulant together then, reserved an inlet two glassy bonds, thus make two blocks of glass opposed make the direction of their frictions parallel to each other, form cavity thus.
Ultraviolet curing monomer 4,4 '-two acryloyl group biphenyl of 3% weight are put in the liquid crystal (E7, Merk company produces), added the light trigger (Darocure-1173) of 1% weight again, under 60 ℃ temperature, heat then, properly mixed.Then compound is injected cavity under 40 ℃ temperature with the vacuum injection method.After injection finished, the material of having used through ultraviolet curing was sealed port, was that the ultraviolet ray of 3 milliwatt/square centimeters was shone one hour with intensity when keeping 40 ℃ of temperature again.
Under the situation of first embodiment, two blocks of glass are bonded to each other that its friction orientation is reversed up and down, form 240 ° angle each other, thereby form vacuum cavity.The S-811 chiral dopant (Merk company product) that adds 0.85% weight then in the liquid crystal.
Embodiment 3
The glass that replaces using among first and second embodiment with the glass that is coated with the ITO electrode through friction.
Embodiment 4
On the ITO electrode, add 3 volts voltage during with ultraviolet curing among the 3rd embodiment.
Embodiment 5
The glass that replaces embodiment 1 to 4 with transparent polymer film or the transparent polymer film that scribbles IT0.Here coating polyimide not, but thin polymer film need not be coated with polyimide direct friction.
Fig. 9 shows fully the light transmission of the cavity of forming by liquid crystal with according to the optical phase-retardation compensating film that the present invention produces with said method.Here, the transmissivity of laser beam (He-Ne) is measured when analyser rotates under following situation: cavity thickness is 6 microns; Torsional angle is 90 °; Friction orientation is a level; Suppose that friction orientation is as 90 ° benchmark, with the polarizer set to zero.Horizontal axis is represented the angle of analyser, and vertical axis is represented transmissivity, and its calibration is arbitrarily.Here, solid line is represented the cavity that is made of liquid crystal, and dotted line is represented the variation of cavity characteristics of the present invention.The result of Fig. 9 shows, though there is the transmission characteristics of cavity of polymkeric substance inferior slightly compared with the cavity that is made of liquid crystal, its molecular structure is reversed into 90 °, and the cavity tool birefringent characteristic of polymkeric substance is arranged.
Figure 10 adds the transmission characteristics of 3 volts of produced cavitys of voltage when showing with ultraviolet ray irradiation monomer.Here, solid line is represented the not characteristic of the cavity of making alive formation, and dotted line represents to add the characteristic of 3 volts of voltages cavitys that monomer solidifies in season.
In above-mentioned polymerization process, liquid crystal is arranged by pressing the orientation direction with the interaction of oriented layer, thereby keeps this state.Here, the liquid crystal bead distinctly scatter or interconnection each other, thereby forms network structure.
The present invention plays optical phase-retardation compensating by the optical phase-retardation compensating film of above-mentioned manufacturing by the interaction between polymeric layer and the liquid crystal.Here, if diopter and the polymeric layer of dispersed LCD is suitable, light just can scattering, thus the formation clear films.In addition, owing to its own birefringenct property is arranged by the liquid crystal of oriented layer orientation, thereby on phase place, show to such an extent that postponed through the light of liquid crystal.Can be regulated easily by means of the thickness of polymeric layer with the transmitted light phase delay that liquid crystal characteristic becomes, thereby be not difficult to adapt to the characteristic of practical LCD.
When optical phase-retardation compensating film of the present invention was applied on the LCD, if the photocontrol state of LCD changes because of variation of ambient temperature, its characteristic will change corresponding the variation with these, thereby has compensated optical phase put-off effectively.On the other hand, because the optical phase wave filter of LCD can adopt the liquid crystal with characteristic, thereby greatly facilitate the matching process of corresponding LCD characteristic.
In addition, the optical control layer of adjustable optical phase delay compensation of the present invention, liquid crystal bead wherein is dispersed in the polymkeric substance.Here, liquid crystal is handled to such an extent that it is orientated towards a direction, and establishes electrode by the direction of orientation of compensation liquid crystal in the optical control layer both sides, for the usefulness of effective compensate for optical phase delay.Like this, birefringenct property can be regulated to such an extent that the photocontrol characteristic of itself and LCD is complementary arbitrarily, thus can effect ground compensation light phase postpone.For example, by monitoring environment temperature, humidity or lambda1-wavelength, can add regulation voltage and make liquid crystal reach desired birefringenct property by monitored results.
Though the present invention is specifically showed with reference to its some specific embodiments and is illustrated, but the experts that are familiar with the present technique field know, can carry out various modifications with regard to its form and details under the prerequisite that does not break away from spirit of the present invention described in this instructions appended claims and scope.
Claims (42)
1, a kind of optical phase-retardation compensating film; comprise polymeric layer 20 and protection member; liquid crystal 10 is dispersed in the polymkeric substance of polymeric layer with the form of pellet shapes state or interconnection each other; the protection member then plays protection polymeric layer 20; it is characterized in that said liquid crystal has predetermined optical phase-retardation compensating value.
2, optical phase-retardation compensating film as claimed in claim 1 is characterized in that, a plurality of liquid crystal beads do not scatter to adjacency.
3, optical phase-retardation compensating film as claimed in claim 1 is characterized in that, described liquid crystal bead interconnects each other, forms a network in described polymeric layer.
4, as the described optical phase-retardation compensating film of 1 to 3 arbitrary claim, it is characterized in that, described polymeric layer both sides be provided with oriented layer 30,30 ', for the usefulness of described liquid crystal aligning.
5, optical phase-retardation compensating film as claimed in claim 4 is characterized in that, described oriented layer is by forming through the polyimide of friction.
6, optical phase-retardation compensating film as claimed in claim 1 is characterized in that, the thickness of described polymeric layer is the 1-30 micron.
7, optical phase-retardation compensating film as claimed in claim 1 is characterized in that, the value of described liquid crystal birefringence rate is in the scope of 0.005-0.35.
8, optical phase-retardation compensating film as claimed in claim 1 is characterized in that, described liquid crystal has or the dielectric anisotropy of plus or minus.
9, optical phase-retardation compensating film as claimed in claim 1 is characterized in that, described polymkeric substance is a 0.1-20% weight to the mixing ratio of described liquid crystal.
10, optical phase-retardation compensating film as claimed in claim 1 is characterized in that, described liquid crystal is a nematic, and the difference between natural torsional angle and the formed angle of two directions of orientation is less than 90 °, greater than-90 °.
11, optical phase-retardation compensating film as claimed in claim 1 is characterized in that, the tilt angle of described liquid crystal is in 0-90 ° scope.
12, a kind of optical phase-retardation compensating film comprises: polymeric layer 20 stretches in one direction; Liquid crystal 10 is dispersed in the described polymeric layer with the pellet shapes state; With the protection member, in order to protect described polymeric layer; It is characterized in that described liquid crystal is orientated in a predetermined direction, make it have a predetermined optical phase-retardation compensating value.
13, optical phase-retardation compensating film as claimed in claim 12 is characterized in that, the liquid crystal bead does not distinctly scatter in abutting connection with ground.
14, optical phase-retardation compensating film as claimed in claim 12 is characterized in that, thereby described liquid crystal bead interconnects each other form liquid crystal network in described polymkeric substance.
As the described optical phase-retardation compensating film of arbitrary claim of claim 12 to 14, it is characterized in that 15, described polymeric layer both sides are equipped with oriented layer, press certain orientation for described liquid crystal and be orientated usefulness.
16, optical phase-retardation compensating film as claimed in claim 15 is characterized in that, described oriented layer is by forming through the polyimide of friction.
17, optical phase-retardation compensating film as claimed in claim 12 is characterized in that, the thickness of described polymeric layer is the 1-30 micron.
18, optical phase-retardation compensating film as claimed in claim 12 is characterized in that, the birefraction of described liquid crystal is in the scope of 0.005-0.35.
19, optical phase-retardation compensating film as claimed in claim 12 is characterized in that, described liquid crystal has one or the dielectric anisotropy of plus or minus.
20, optical phase-retardation compensating film as claimed in claim 12 is characterized in that, described polymkeric substance is a 0.1-20% weight to the mixing ratio of described liquid crystal.
21, optical phase-retardation compensating film as claimed in claim 12 is characterized in that, natural torsional angle and the formed angle of two directions of orientation, and difference between the two is less than 90 °, greater than-90 °.
22, optical phase-retardation compensating film as claimed in claim 12 is characterized in that, the tilt angle of described liquid crystal is in 0-90 ° scope.
23, a kind of adjustable optical phase delay compensation film comprises: polymeric layer 20 has the liquid crystal 10 that disperses with the pellet shapes state; The protection member is for the usefulness of the described polymeric layer 20 of protection; With transparency electrode 30 and 30 ', be in the both sides of described polymeric layer;
It is characterized in that the orientation of described liquid crystal is regulated by means of being added to the bucking voltage on the described electrode.
24, adjustable optical phase delay compensation film as claimed in claim 23 is characterized in that described polymeric layer is stretched, thereby the described liquid crystal that is dispersed in the described polymer layer is orientated along predetermined direction.
25, as claim 23 or 24 described adjustable optical phase delay compensation films, it is characterized in that the liquid crystal bead interconnects each other, thereby in described polymer layer, form the network of described liquid crystal.
26, adjustable optical phase delay compensation film as claimed in claim 25 is characterized in that, described oriented layer is by forming through the polyimide of friction.
27, adjustable optical phase delay compensation film as claimed in claim 23 is characterized in that, the thickness of described polymeric layer is the 1-30 micron.
28, adjustable optical phase delay compensation film as claimed in claim 23 is characterized in that the birefraction of described liquid crystal is in the scope of 0.005-0.35.
29, adjustable optical phase delay compensation film as claimed in claim 23 is characterized in that, described liquid crystal has one or the dielectric anisotropy of plus or minus.
30, adjustable optical phase delay compensation film as claimed in claim 23 is characterized in that, described polymkeric substance is a 0.1-20% weight to the mixing ratio of described liquid crystal.
31, adjustable optical phase delay compensation film as claimed in claim 23 is characterized in that described liquid crystal is a nematic, and natural torsional angle and the formed angle of two directions of orientation, and difference between the two is less than 90 °, greater than-90 °.
32, adjustable optical phase delay compensation film as claimed in claim 23 is characterized in that the tilt angle of described liquid crystal is in 0-90 ° scope.
33, a kind of adjustable optical phase delay compensation film comprises:
Polymeric layer 20 has the liquid crystal 10 that is the dispersion of bead state;
The protection member is in order to protect described polymeric layer 20;
Transparency electrode 30 and 30 ', be located at described polymeric layer both sides, for by means of being added to bucking voltage on described two electrodes to regulate the orientation of described liquid crystal; With
Oriented layer 50 and 50 ', be located on the inside surface of described transparency electrode, directly contact with described polymeric layer 20, the described liquid crystal 10 that is dispersed in the described polymeric layer is orientated by predetermined direction.
34, adjustable optical phase delay compensation film as claimed in claim 33 it is characterized in that described polymeric layer is stretched in one direction, and the liquid crystal that is dispersed in the strained polymer is orientated by predetermined direction.
35, as claim 33 or 34 described adjustable optical phase delay compensation films, it is characterized in that described liquid crystal interconnects each other, thereby in described polymeric layer, form liquid crystal network.
36, adjustable optical phase delay compensation film as claimed in claim 35 is characterized in that, described oriented layer is by forming through the polyimide of friction.
37, adjustable optical phase delay compensation film as claimed in claim 33 is characterized in that, the thickness of described polymeric layer is the 1-30 micron.
38, adjustable optical phase delay compensation film as claimed in claim 33 is characterized in that the birefraction of described liquid crystal is in the scope of 0.005-0.35.
39, adjustable optical phase delay compensation film as claimed in claim 33 is characterized in that, described liquid crystal has one or the dielectric anisotropy of plus or minus.
40, adjustable optical phase delay compensation film as claimed in claim 33 is characterized in that, described polymkeric substance is a 0.1-20% weight to the mixing ratio of described liquid crystal.
41, adjustable optical phase delay compensation film as claimed in claim 33 is characterized in that, described liquid crystal is a nematic, and natural torsional angle and the formed angle of two directions of orientation, and difference between the two is less than 90 °, greater than-90 °.
42, adjustable optical phase delay compensation film as claimed in claim 33 is characterized in that the tilt angle of described liquid crystal is in 0-90 ° scope.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR7399/92 | 1992-04-30 | ||
| KR1019920007400A KR940009131B1 (en) | 1992-04-30 | 1992-04-30 | Film compensated light phase |
| KR7400/92 | 1992-04-30 | ||
| KR1019920007399A KR940009130B1 (en) | 1992-04-30 | 1992-04-30 | Film compensated light phase |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1078049A true CN1078049A (en) | 1993-11-03 |
Family
ID=26629037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93105175A Pending CN1078049A (en) | 1992-04-30 | 1993-04-30 | Optical phase-retardation compensating film |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPH0627323A (en) |
| CN (1) | CN1078049A (en) |
| DE (1) | DE4314349A1 (en) |
| FR (1) | FR2690762B1 (en) |
| GB (1) | GB2266599B (en) |
| TW (1) | TW225546B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100371784C (en) * | 2005-08-12 | 2008-02-27 | 友达光电股份有限公司 | Liquid crystal display element capable of increasing opening rate and visible angle |
| CN100378533C (en) * | 2004-09-29 | 2008-04-02 | 精工爱普生株式会社 | Projection-type display device |
| USRE43694E1 (en) | 2000-04-28 | 2012-10-02 | Sharp Kabushiki Kaisha | Stamping tool, casting mold and methods for structuring a surface of a work piece |
| CN102830547A (en) * | 2012-09-11 | 2012-12-19 | 京东方科技集团股份有限公司 | Optical compensation film and manufacturing method thereof, liquid crystal display panel, and liquid crystal display device |
| CN101946271B (en) * | 2008-02-22 | 2013-11-20 | 夏普株式会社 | Display device |
| CN103592716A (en) * | 2013-10-15 | 2014-02-19 | 深圳市三利谱光电科技股份有限公司 | Scattering Polaroid and manufacturing method and application thereof |
| CN104317106A (en) * | 2014-11-20 | 2015-01-28 | 京东方科技集团股份有限公司 | Display substrate, manufacturing method of display substrate and display device |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9305143D0 (en) * | 1993-03-12 | 1993-04-28 | Marconi Gec Ltd | Optical devices |
| DE4434921C2 (en) * | 1994-09-29 | 1996-12-12 | Wissenschaftlich Tech Optikzen | Achromatic phase delay element |
| TW327208B (en) * | 1994-11-10 | 1998-02-21 | Sumitomo Chemical Co | Optically anisotropic film and process for producing the same and liquid crystal display device |
| US6294231B1 (en) | 1998-09-17 | 2001-09-25 | Sumitomo Chemical Company, Limited | Optically anisotropic film, method of manufacturing the same, and liquid crystal display apparatus |
| JP3791241B2 (en) * | 1999-06-04 | 2006-06-28 | セイコーエプソン株式会社 | Projection display |
| US9939682B2 (en) * | 2013-02-15 | 2018-04-10 | E-Vision, Llc | Liquid crystal alignment layers and method of fabrication |
| US10816816B2 (en) * | 2018-09-04 | 2020-10-27 | GM Global Technology Operations LLC | Tunable film apparatus |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0180592B1 (en) * | 1984-03-19 | 1995-08-02 | Kent State University | Light modulating material comprising a liquid crystal dispersion in a synthetic resin matrix |
| AU599927B2 (en) * | 1985-09-17 | 1990-08-02 | Kent State University | Liquid crystal light-modulating materials |
| US4869847A (en) * | 1987-03-16 | 1989-09-26 | Hoechst Celanese Corp. | Microdisperse polymer/liquid crystal composite |
| JP2615715B2 (en) * | 1987-12-10 | 1997-06-04 | セイコーエプソン株式会社 | Manufacturing method of electro-optical element |
| JP2625851B2 (en) * | 1988-04-08 | 1997-07-02 | 旭硝子株式会社 | Liquid crystal display element and liquid crystal display device using the same |
| DE3925382A1 (en) * | 1989-06-14 | 1991-01-03 | Merck Patent Gmbh | ELECTROOPTIC SYSTEM WITH COMPENSATION FILM |
| JPH0328822A (en) * | 1989-06-27 | 1991-02-07 | Nippon Oil Co Ltd | Compensating plate for liquid crystal display element |
| EP0423881B1 (en) * | 1989-10-18 | 1994-02-09 | Koninklijke Philips Electronics N.V. | Liquid-crystal display device |
| JPH03291623A (en) * | 1990-04-10 | 1991-12-20 | Nippon Oil Co Ltd | Compensating plate for liquid crystal display element |
| JP3291623B2 (en) * | 1999-01-14 | 2002-06-10 | 賢一 今子 | Gas-liquid mixing device |
-
1993
- 1993-04-27 FR FR9304957A patent/FR2690762B1/en not_active Expired - Fee Related
- 1993-04-29 TW TW082103350A patent/TW225546B/zh active
- 1993-04-30 GB GB9309047A patent/GB2266599B/en not_active Expired - Fee Related
- 1993-04-30 DE DE4314349A patent/DE4314349A1/en not_active Withdrawn
- 1993-04-30 JP JP5104409A patent/JPH0627323A/en active Pending
- 1993-04-30 CN CN93105175A patent/CN1078049A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE43694E1 (en) | 2000-04-28 | 2012-10-02 | Sharp Kabushiki Kaisha | Stamping tool, casting mold and methods for structuring a surface of a work piece |
| USRE44830E1 (en) | 2000-04-28 | 2014-04-08 | Sharp Kabushiki Kaisha | Stamping tool, casting mold and methods for structuring a surface of a work piece |
| USRE46606E1 (en) | 2000-04-28 | 2017-11-14 | Sharp Kabushiki Kaisha | Stamping tool, casting mold and methods for structuring a surface of a work piece |
| CN100378533C (en) * | 2004-09-29 | 2008-04-02 | 精工爱普生株式会社 | Projection-type display device |
| CN100371784C (en) * | 2005-08-12 | 2008-02-27 | 友达光电股份有限公司 | Liquid crystal display element capable of increasing opening rate and visible angle |
| CN101946271B (en) * | 2008-02-22 | 2013-11-20 | 夏普株式会社 | Display device |
| CN102830547A (en) * | 2012-09-11 | 2012-12-19 | 京东方科技集团股份有限公司 | Optical compensation film and manufacturing method thereof, liquid crystal display panel, and liquid crystal display device |
| CN102830547B (en) * | 2012-09-11 | 2015-07-01 | 京东方科技集团股份有限公司 | Optical compensation film and manufacturing method thereof, liquid crystal display panel, and liquid crystal display device |
| CN103592716A (en) * | 2013-10-15 | 2014-02-19 | 深圳市三利谱光电科技股份有限公司 | Scattering Polaroid and manufacturing method and application thereof |
| CN104317106A (en) * | 2014-11-20 | 2015-01-28 | 京东方科技集团股份有限公司 | Display substrate, manufacturing method of display substrate and display device |
| WO2016078316A1 (en) * | 2014-11-20 | 2016-05-26 | 京东方科技集团股份有限公司 | Display substrate and manufacturing method therefor, and display apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2690762A1 (en) | 1993-11-05 |
| JPH0627323A (en) | 1994-02-04 |
| GB9309047D0 (en) | 1993-06-16 |
| FR2690762B1 (en) | 1995-02-17 |
| GB2266599A (en) | 1993-11-03 |
| GB2266599B (en) | 1996-02-07 |
| DE4314349A1 (en) | 1993-11-04 |
| TW225546B (en) | 1994-06-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |