CN105742319B - Anti-reflective film and organic light emitting apparatus including the anti-reflective film - Google Patents
Anti-reflective film and organic light emitting apparatus including the anti-reflective film Download PDFInfo
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- CN105742319B CN105742319B CN201510994156.0A CN201510994156A CN105742319B CN 105742319 B CN105742319 B CN 105742319B CN 201510994156 A CN201510994156 A CN 201510994156A CN 105742319 B CN105742319 B CN 105742319B
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/86—Arrangements for improving contrast, e.g. preventing reflection of ambient light
Abstract
The present invention provides a kind of anti-reflective film and the organic light emitting apparatus including the anti-reflective film.The anti-reflective film includes polarizer, first phase retardation layer and second phase retardation layer, wherein at least one of first phase retardation layer and second phase retardation layer include liquid crystal layer, and the liquid crystal layer includes about its surface liquid crystal that non-vertically inclined side is upwardly oriented.
Description
Technical field
Embodiment is related to a kind of anti-reflective film and the organic light emitting apparatus including the anti-reflective film.
Background technique
Recently, with the increase in demand to frivolous display device such as monitor, television set etc., organic light emitting apparatus
(OLED) caused to pay close attention to.Organic light emitting apparatus is operated as self-emission display apparatus, and does not have to individual backlight, therefore can
For realizing thin and flexible display device.
In organic light emitting apparatus, exterior light can be by the metal electrode of organic light emitting display panel and metal line reflection, can
Opinion property and contrast can due to exterior light reflection and be deteriorated, reduce display quality.Therefore, circular polarizing disk is typically attached
The reflection of exterior light is reduced to the surface of organic light emitting display panel, therefore can be reduced the exterior light reflected and be leaked into outside
Portion.
Summary of the invention
Conventional circular polarizing disk generally has strong view angle dependency, so that when such conventional circular polarizing disk is applied
Visibility can degenerate towards side when organic light emitting apparatus is to reduce the reflection of exterior light.
Embodiment provides a kind of anti-reflective film of the view angle dependency by reduction with improved display characteristic.
Embodiment provides a kind of organic light emitting apparatus including the anti-reflective film.
According to an embodiment, a kind of anti-reflective film includes polarizer, first phase retardation layer and second phase retardation layer,
Wherein at least one of first phase retardation layer and second phase retardation layer include liquid crystal layer, and liquid crystal layer is included in about its table
The face liquid crystal that non-vertically inclined side is upwardly oriented.
In one embodiment, liquid crystal layer may include first surface and the second surface opposite with first surface, liquid crystal
Inclination angle can be gradually increased from first surface to second surface.
In one embodiment, the allowable angle of inclination of liquid crystal can be in the range of from about 30 degree to about 75 degree.
In one embodiment, the inclination angle of the liquid crystal near first surface can be greater than about zero degree (0 °) and be less than or wait
In about 5 degree.
In one embodiment, in first phase retardation layer and second phase retardation layer it is described at least one can also wrap
Include the both alignment layers of the first surface of contact liquid crystal layer.
In one embodiment, liquid crystal layer is for postponing (R in the plane of about 450nm, about 550nm and about 650nm wavelengthe2)
It can satisfy with lower inequality: 0.95≤Re2-450nm/Re2-550nm；And 0.95≤Re2-550nm/Re2-650nm, wherein Re2-450nmTable
Show liquid crystal layer for postponing in the plane of the incident light of about 450nm wavelength, Re2-550nmIndicate liquid crystal layer for about 550nm wavelength
Delay, R in the plane of incident lighte2-650nmIndicate liquid crystal layer for postponing in the plane of the incident light of about 650nm wavelength.
In one embodiment, the wavelength dispersion of liquid crystal layer can satisfy with lower inequality: 1.0≤Re2-450nm/Re2-550nm
≤ 1.2, wherein Re2-450nmExpression liquid crystal layer in the plane of the incident light of about 450nm wavelength for postponing, Re2-550nmIndicate liquid crystal
Layer in the plane of the incident light of about 550nm wavelength for postponing.
In one embodiment, the combination of first phase retardation layer and second phase retardation layer for about 450nm, about
Postpone (R in the plane of 550nm and about 650nm wavelengthe0) can satisfy with lower inequality: Re0-450nm≤Re0-550nm≤Re0-650nm,
Wherein Re0-450nmIndicate the combination of first phase retardation layer and second phase retardation layer for about 450nm wavelength incident light it is flat
Postpone in face, Re0-550nmIncidence of the combination of expression first phase retardation layer and second phase retardation layer for about 550nm wavelength
Delay, R in the plane of lighte0-650nmThe combination of expression first phase retardation layer and second phase retardation layer is for about 650nm wavelength
Incident light plane in delay.
In one embodiment, combined short wavelength's dispersion of first phase retardation layer and second phase retardation layer can expire
It is enough lower inequality: 0.7≤Re0-450nm/Re0-550nm≤ 1.0, wherein Re0-450nmIndicate first phase retardation layer and second phase
Retardation layer in the plane of the incident light of about 450nm wavelength for postponing, Re0-550nmIndicate first phase retardation layer and second phase
The combination of retardation layer in the plane of the incident light of about 550nm wavelength for postponing.
In one embodiment, the angle (θ between the optical axis of first phase retardation layer and the optical axis of polarizera) and second
Angle (θ between the optical axis of phase delay layer and the optical axis of polarizerb) it can satisfy following formula: θb=2 θa+45°。
In one embodiment, one in first phase retardation layer and second phase retardation layer can be the phase of λ/2 and prolong
Slow layer, another in first phase retardation layer and second phase retardation layer can be the phase delay layer of λ/4.
In one embodiment, first phase retardation layer can be the phase delay layer of λ/2, and second phase retardation layer can be
The phase delay layer of λ/4.
In one embodiment, second phase retardation layer may include liquid crystal layer.
In one embodiment, the refractive index that first phase retardation layer be can have while be met with lower inequality: nx1>
ny1；And nx1>nz1, wherein nx1Indicate the refractive index at the slow axis of first phase retardation layer, ny1Indicate first phase retardation layer
Fast axle at refractive index, nz1It indicates perpendicular to the refractive index on the slow axis of first phase retardation layer and the direction of fast axle.
In one embodiment, first phase retardation layer may include the polymeric layer elongated.
Anti-reflective film include polarizer, setting first phase retardation layer on the polarizer and setting in polarizer and
Second phase retardation layer between first phase retardation layer.Anti-reflective film includes that the polarizer being sequentially laminated, first phase are prolonged
Slow layer and second phase delay.
According to another embodiment, oled device includes organic light emitting display panel and anti-reflective film, is somebody's turn to do
Anti-reflective film includes polarizer, first phase retardation layer on the polarizer is arranged and is arranged in polarizer and first phase
Second phase retardation layer between retardation layer, wherein at least one of first phase retardation layer and second phase retardation layer include
Liquid crystal layer, the liquid crystal layer include about its surface liquid crystal that non-vertically inclined side is upwardly oriented.
In one embodiment, liquid crystal layer may include first surface and the second surface opposite with first surface, liquid
Brilliant inclination angle can be gradually increased from first surface to second surface.
In one embodiment, the first surface of liquid crystal layer can be set than organic light emitting display panel closer to polarizer
It sets, the second surface of liquid crystal layer can be arranged than polarizer closer to organic light emitting display panel.
In one embodiment, the allowable angle of inclination of liquid crystal can be in the range of from about 30 degree to about 75 degree.
In one embodiment, the inclination angle of the liquid crystal near first surface can be greater than about zero degree (0 °) and be less than or wait
In about 5 degree.
In one embodiment, in first phase retardation layer and second phase retardation layer it is described at least one can also wrap
Include the both alignment layers of the first surface of contact liquid crystal layer.
In one embodiment, liquid crystal layer is for postponing (R in the plane of about 450nm, about 550nm and about 650nm wavelengthe2)
It can satisfy with lower inequality: 0.95≤Re2-450nm/Re2-550nm；0.95≤Re2-550nm/Re2-650nm, wherein Re2-450nmIndicate liquid
Crystal layer in the plane of the incident light of 450nm wavelength for postponing, Re2-550nmIndicate liquid crystal layer for the incident light of 550nm wavelength
Delay, R in planee2-650nmIndicate liquid crystal layer for postponing in the plane of the incident light of 650nm wavelength.
In one embodiment, the wavelength dispersion of liquid crystal layer can satisfy with lower inequality: 1.0≤Re2-450nm/Re2-550nm
≤ 1.2, wherein Re2-450nmExpression liquid crystal layer in the plane of the incident light of 450nm wavelength for postponing, Re2-550nmIndicate liquid crystal layer
For postponing in the plane of the incident light of 550nm wavelength.
In one embodiment, the combination of first phase retardation layer and second phase retardation layer for about 450nm, about
Postpone (R in the plane of 550nm and about 650nm wavelengthe0) can satisfy with lower inequality: Re0-450nm≤Re0-550nm≤Re0-650nm,
Wherein Re0-450nmPlane of the combination of expression first phase retardation layer and second phase retardation layer for the incident light of 450nm wavelength
Interior delay, Re0-550nmIndicate the combination of first phase retardation layer and second phase retardation layer for the incident light of 550nm wavelength
Delay, R in planee0-650nmIncidence of the combination of expression first phase retardation layer and second phase retardation layer for 650nm wavelength
Delay in the plane of light.
In one embodiment, combined short wavelength's dispersion of first phase retardation layer and second phase retardation layer can expire
It is enough lower inequality: 0.7≤Re0-450nm/Re0-550nm≤ 1.0, wherein Re0-450nmIndicate first phase retardation layer and second phase
The combination of retardation layer in the plane of the incident light of 450nm wavelength for postponing, Re0-550nmIndicate first phase retardation layer and second
The combination of phase delay layer in the plane of the incident light of 550nm wavelength for postponing.
In one embodiment, the angle (θ between the optical axis of first phase retardation layer and the optical axis of polarizera) and second
Angle (θ between the optical axis of phase delay layer and the optical axis of polarizerb) it can satisfy following formula: θb=2 θa+45°。
In one embodiment, one in first phase retardation layer and second phase retardation layer can be the phase of λ/2 and prolong
Slow layer, another in first phase retardation layer and second phase retardation layer can be the phase delay layer of λ/4.
In one embodiment, first phase retardation layer can be the phase delay layer of λ/2, and second phase retardation layer can be
The phase delay layer of λ/4.
In one embodiment, second phase retardation layer may include liquid crystal layer.
In one embodiment, first phase retardation layer can have while meet the refractive index of relational expression 6 and 7.
In one embodiment, first phase retardation layer may include the polymeric layer elongated.In one embodiment, resist
Reflectance coating may include polarizer, first phase retardation layer on the polarizer be arranged and is arranged in polarizer and the first phase
Second phase retardation layer between the retardation layer of position.
In one embodiment, anti-reflective film may include the polarizer of sequence stacking, first phase retardation layer and second
Phase delay layer.
Detailed description of the invention
From below in conjunction with attached drawing to the detailed description of embodiments of the present invention, these and/or other features of the invention
It will be apparent and it is more readily appreciated that in attached drawing:
Fig. 1 is the sectional view for showing the embodiment of anti-reflective film；
Fig. 2 is the sectional view for showing another embodiment of anti-reflective film；
Fig. 3 is the schematic sectional view of the embodiment of the second phase retardation layer of the anti-reflective film in Fig. 1 or Fig. 2；
Fig. 4 is the schematic diagram of the antireflection principle for the embodiment for showing anti-reflective film；
Fig. 5 is that the visual angle for the embodiment for showing anti-reflective film improves the schematic diagram of principle；
Fig. 6 is the schematic sectional view of the embodiment of oled device；
Fig. 7 be show according to the allowable angle of inclination of liquid crystal in the anti-reflective film of example 2 to 5 and comparative example 2 with about
The discovery of display panel at the relationship between the reflectivity of 60 ° of side figure；
Fig. 8 shows the simulation knot for depending on the reflectivity at visual angle in all directions in the anti-reflective film according to example 1
Fruit；And
Fig. 9 shows the simulation for depending on the reflectivity at visual angle in all directions in the anti-reflective film according to comparative example 1
As a result.
Specific embodiment
The present invention is described more fully with reference to the accompanying drawings below, exemplary embodiment of the invention is shown in the accompanying drawings
Out.As the skilled person will recognize, the embodiment can be modified in a variety of ways, not carry on the back all
From the spirit or scope of the present invention.
It will be understood that when claim an element or another element of layer " " or layer "upper", " being connected to " or " being connected to " it is another
When a element or layer, it can directly on another described element or layer, be directly coupled to or be connected to another described yuan
Part or layer, or may exist intervening elements or layer.On the contrary, when an element is referred to as directly on another element or layer,
When " being directly connected to " or " being directly coupled to " another element or layer, intervening elements or layer is not present.Identical appended drawing reference begins
Identical element is referred to eventually.When used herein, term "and/or" include any of relevant item listed by one or more and
All combinations.
It will be understood that although term first, second etc. may be used herein describe various component, assembly units, region, layer and/
Or part, but these component, assembly units, regions, layers, and/or portions should not be limited by these terms.These terms are only used to will
One component, assembly unit, region, layer are differentiated with another component, assembly unit, region, layer or part.Therefore, following discussion
First element, component, region, layer or part can be referred to as second element, component, region, layer or part, without departing from this
The introduction of invention.
For convenience of description, may be used herein spatial relation term such as " ... below ", " ... under ",
"lower", " ... on ", "upper" etc. an elements or features as shown in drawings and another (other) element are described
Or the relationship of feature.It will be understood that spatial relation term be intended to cover other than the discribed orientation of attached drawing device using or
Different orientation in operation.For example, if the device in attached drawing is reversed, being described as in exemplary embodiment
The element of " " other elements or feature " below " or " under " will be orientated " " described other elements or feature " on ".Cause
This, exemplary term " ... under " can cover above and below two kinds orientation.Device can otherwise be orientated (rotation
It turn 90 degrees or in other orientations), spatial relation description symbol used herein is interpreted accordingly.
Term used herein is merely to describing particular implementation and being not intended to the limitation present invention.As used herein
, singular " one " and "the" are intended to also include plural form, unless the context clearly dictates otherwise.It will also be appreciated that
It is term " includes " and/or "comprising", when used in this manual, shows the feature, entirety, step, operation, member
The presence of part and/or component, but be not precluded other one or more features, entirety, step, operation, component, assembly unit and/or
Its presence or increase for organizing.
It " about " or " substantially " including described value and indicates as used herein by those of ordinary skill in the art institute
In the determining tolerance interval for the deviation of particular value, measurement in question and related to the measurement of specific quantity is considered
Error (that is, limitation of measuring system).For example, " about " can indicate in one or more standard deviations, or in described value
± 30%, 20%, 10%, 5% in.
Unless otherwise defined, otherwise all terms (including technical and scientific term) used herein all have the present invention
The normally understood identical meanings of those of ordinary skill in fields.It will also be understood that term, limited in such as general dictionary
Those, should be interpreted the consistent meaning of meaning in the background with the prior art, without be interpreted idealization or
The meaning of over formalization, unless clearly so limiting here.
Exemplary embodiment is described referring herein to cross section, these sectional views are the schematic diagrames for idealizing embodiment.
Thus, the deviation of diagram shape as caused by such as manufacturing technology and/or tolerance will be can be expectable.Therefore, described herein
Embodiment should not be construed as limited to the specific shape in region as shown herein, but will include being caused by for example manufacturing
Form variations.For example, coarse and/or nonlinear feature can usually be had by being illustrated or described as flat region.This
Outside, the acute angle shown can be rounded.Therefore, region shown in the drawings is inherently schematical, their shape not purport
In the accurate shape for showing region, and it is not intended to be limited to the range of present claims.
In the accompanying drawings, for clarity, the thickness in layer, film, panel, region etc. is exaggerated.Same appended drawing reference is entire
Same element is referred in specification.It will be understood that when claiming on an element such as layer, film, region or another element of substrate " ",
It can be directly on another element, or there may also be intervening elements.On the contrary, when element is referred to as " directly existing " separately
When on one element, intervening elements are not present.
Below, embodiments of the present invention are described with reference to the accompanying drawings.
Fig. 1 is the sectional view for showing the embodiment of anti-reflective film, and Fig. 2 is another embodiment for showing anti-reflective film
Sectional view, Fig. 3 are the schematic sectional views of the embodiment of the second phase retardation layer of the anti-reflective film in Fig. 1 or Fig. 2.
Referring to Fig.1, the embodiment of anti-reflective film 100 includes polarizer 110, the first phase being arranged on polarizer 110
Position retardation layer 120 and the second phase retardation layer 130 being arranged between polarizer 110 and first phase retardation layer 120.Change sentence
It talks about, the anti-reflective film 100 in Fig. 1 includes polarizer 110, second phase retardation layer 130 and the first phase being sequentially laminated
Retardation layer 120.
Referring to Fig. 2, the embodiment of anti-reflective film 100 includes the polarizer 110 of sequence stacking, first phase retardation layer
120 and second phase retardation layer 130.Polarizer 110 can limit light incident side or the surface of anti-reflective film, such as light enters
Side or surface, and can be and incident light is changed into linear polarization or makes the linear polarizer of incident light polarization linearly polarized light.
In an embodiment, for example, polarizer 110 may include the polyvinyl alcohol (PVA) elongated.In an embodiment party
Formula, for example, polarizer 110 can handle PVA to PVA film and with boric acid by stretching PVA film, absorption iodine or dichroic dye
PVA film after film and carrying out washing treatment and formed.
In an embodiment, for example, polarizer 110 may include melt-blended comprising polymer and dichroic dye
The polarizing coating of object can be prepared by melt-blended polymer and dichroic dye.In an embodiment, for example, partially
Vibrating diaphragm can pass through the mixing of mixed polymer and dyestuff and temperature melting polymer and dyestuff more than the fusing point of polymer
Object by by polarizing coating manufacture it is sheet of in the form of and formed.
In one embodiment, one in first phase retardation layer 120 and second phase retardation layer 130 can be λ/2
Phase delay layer, another in first phase retardation layer 120 and second phase retardation layer 130 can be the phase delay layer of λ/4.
In one embodiment, for example, first phase retardation layer 120 can be the phase delay layer of λ/2, second phase retardation layer 130
It can be the phase delay layer of λ/4.In one embodiment, for example, first phase retardation layer 120 can be the phase delay of λ/4
Layer, second phase retardation layer 130 can be the phase delay layer of λ/2.It is the phase delay layer of λ/2 in first phase retardation layer 120
In embodiment, first phase retardation layer 120 can for 550nm incident light (below, referred to as " reference wavelength ") tool
Have and postpones (R in plane in the range of about 240 nanometers (nm) to about 300nme1).In an embodiment, for example, the first phase
Position retardation layer 120 can have flat in the range of about 240nm to about 280nm or in the range of about 250nm to about 280nm
Postpone (R in facee1).Here, postpone (R in the plane of first phase retardation layer 120e1) meet following formula: Re1=(nx1-ny1)
×d1, wherein d1Indicate the thickness of first phase retardation layer 120, nx1Indicate the folding at the slow axis of first phase retardation layer 120
Penetrate rate, ny1Indicate the refractive index at the fast axle of first phase retardation layer 120.Here, the refractive index at fast axle/slow axis indicates
In the refractive index being parallel on fast axle/slow axis direction.
In the embodiment that first phase retardation layer 120 is the phase delay layer of λ/4, first phase retardation layer 120 can be with
Have in plane in the range of about 110nm to about 160nm for the incident light with the reference wavelength and postpones (Re1).?
One embodiment, for example, first phase retardation layer 120 can have in plane in the range of about 120nm to about 150nm
Postpone (Re1)。
First phase retardation layer 120 can have while meet the refractive index of following relationship 6 and 7.
[relational expression 6]
nx1>ny1
[relational expression 7]
nx1>nz1
In relational expression 6 and 7, nx1Indicate the refractive index at the slow axis of first phase retardation layer 120, ny1It indicates the
Refractive index at the fast axle of one phase delay layer 120, nz1It indicates in the slow axis and fast axle perpendicular to first phase retardation layer 120
Refractive index on direction.
In one embodiment, first phase retardation layer 120 may include the elongation with positive or negative birefringence value
Polymeric layer.First phase retardation layer 120 may include such as cycloolefin, poly- (methyl) acrylate, polycarbonate, polyphenyl second
Alkene, poly maleimide (polymaleimide), polyacrylonitrile, polyethylene terephthalate, cellulose, its mixture,
Its polymer, its copolymer or combinations thereof, but not limited to this.
First phase retardation layer 120 may include the liquid crystal with positive or negative birefringence value.Liquid crystal can be each to different
Property liquid crystal, such as the monomer with rigid rodlike, oligomer or polymer.
In the embodiment that second phase retardation layer 130 is the phase delay layer of λ/4, second phase retardation layer 130 can be with
Have in plane in the range of about 110nm to about 160nm for the incident light with the reference wavelength and postpones (Re2).?
One embodiment, for example, second phase retardation layer 130 can have in plane in the range of about 120nm to about 150nm
Postpone (Re2).Here, postpone (R in the plane of second phase retardation layer 130e2) meet following formula: Re2=(nx2-ny2)×d2,
Wherein d2Indicate the thickness of second phase retardation layer 130, nx2Indicate the refractive index at the slow axis of second phase retardation layer 130,
ny2Indicate the refractive index at the fast axle of second phase retardation layer 130.
In the embodiment that second phase retardation layer 130 is the phase delay layer of λ/2, second phase retardation layer 130 can be with
Have in plane in the range of about 240nm to about 300nm for the incident light with the reference wavelength and postpones (Re1).?
One embodiment, for example, second phase retardation layer 130 can have in plane in the range of about 250nm to about 280nm
Postpone (Re1)。
Referring to Fig. 3, the embodiment of second phase retardation layer 130 may include such as substrate 131, be arranged in substrate 131
On both alignment layers 132 and the liquid crystal layer 133 that is arranged in both alignment layers 132.
In one embodiment, substrate 131 may include such as glass substrate or polymeric substrates.Include in substrate 131
In the embodiment of polymeric substrates, polymeric substrates may include such as polyethylene terephthalate (PET), PVA, gather
Carbonic ester (PC), triacetyl cellulose (TAC), its derivative and/or combination thereof, or be made of them, but not limited to this.?
In one alternate embodiment, the both alignment layers 132 and liquid crystal layer 133 of second phase retardation layer 130 be can be set in another lower layer's (example
Such as, first phase retardation layer 120 or polarizer 110 shown in FIG. 1) on.In such an embodiment, it is convenient to omit substrate
131.In one embodiment, the surface (for example, lower surface) of substrate 131 can contact first phase retardation layer 120 or polarization
Device 110.
Both alignment layers 132 can make multiple LCD alignments of liquid crystal layer 133 with pre-tilt angle and therefore control liquid crystal
Orientation, such as may include polyvinyl alcohol, polyolefin, polyamic acid, polyimides or combinations thereof, or formed by it.Both alignment layers
132 surface can have the light processing by the physical treatment of such as mantle friction or such as alignment and limit or be formed
Multiple grooves.
Liquid crystal layer 133 may include about its surface (for example, surface adjacent to both alignment layers 132 of liquid crystal layer 133)
The non-vertically the multiple liquid crystal 133a that inclined side is upwardly oriented.Here, non-vertically incline about the surface of liquid crystal layer 133
Tiltedly indicate the not liquid crystal with the vertically or horizontally orientation of the length of liquid crystal layer 133 (or width) direction, each liquid crystal 133a is to close
In the surface of liquid crystal layer 133 at greater than about zero degree (0 °) to less than about 90 ° of angle tilt.
In one embodiment, surface inclined angle (below, quilt of each liquid crystal 133a relative to liquid crystal layer 133
Referred to as " inclination angle ") it can change along the thickness direction of liquid crystal layer 133.The inclination angle of liquid crystal 133a can be based on the edge liquid crystal 133a
The position of thickness direction and set in liquid crystal layer 133.In an embodiment, for example, the inclination angle of liquid crystal 133a can edge
The thickness direction of liquid crystal layer 133 gradually changes (for example, increasing or reducing), it is, the inclination angle of liquid crystal 133a can be with
Position change of the liquid crystal 133a on the thickness direction of liquid crystal layer 133 and gradually change.
In one embodiment, for example, when liquid crystal layer 133 has the first surface of contact both alignment layers 132 (under for example,
Surface) and contact first phase retardation layer 120 or polarizer 110 second surface when, the inclination angle of liquid crystal 133a can be from the
One surface becomes larger to second surface, as shown in Figure 3.
In one embodiment, for example, at first surface (or adjacent to first surface) liquid crystal 133a inclination
Angle (θ1) it can be the pre-tilt angle limited by both alignment layers 132.In such an embodiment, for example, at first surface liquid
Inclination angle (the θ of brilliant 133a1) zero degree (0 °) can be greater than about and less than or equal to about 20 °.The liquid crystal 133a at first surface
Inclination angle (θ1) can for example from greater than about 0 ° to less than or be equal to about 15 °, such as from greater than about 0 ° to less than or be equal to about
10 °, for example, from greater than about 0 ° to less than or be equal to about 5 °, or for example in the range of about 2 ° to about 5 °.
Inclination angle (the θ of liquid crystal 133a at second surface (or adjacent to second surface)2) it can be allowable angle of inclination,
It is for example in the range of about 30 ° to about 75 °.In one embodiment, which can be for example at about 35 ° to about
In the range of 70 °, or in the range of about 40 ° to about 60 °.
In one embodiment, liquid crystal layer 133 includes the multiple liquid crystal 133a being upwardly oriented in non-vertically inclined side,
The inclination angle of liquid crystal 133a changes along the thickness direction of liquid crystal layer 133, so that circularly polarized light effect is basic in all directions
On equably realize, and be effectively prevented exterior light and reflected in side and front, so as to improve side visibility.
Liquid crystal 133a can have the rod-shaped material being orientated in a predetermined direction, and may include such as monomer, oligomer
Or polymer.Liquid crystal 133a can have for example positive or negative birefringent (Δ n).
Liquid crystal 133a may include reactive mesogen (reactive mesogen) liquid crystal, and may include for example, at least
A kind of liquid crystal composition (mesogenic moiety) and at least one polymerizable functional group.Reactive mesogen liquid crystal can wrap
Include rod-shaped fragrance derivatives, propylene glycol 1- methyl, the propylene glycol 2- acetic acid esters for example at least one reactive crosslinking group
And by P1-A1-(Z1-A2)nP2At least one of compound of representative.Here, P1And P2It independently include such as acrylic acid
The polymer functional group of ester, methacrylate, acryloyl, vinyl, ethyleneoxy, epoxy or combinations thereof, A1And A2Independently wrap
Include Isosorbide-5-Nitrae-phenylene, naphthalene -2,6- diyl or combinations thereof, Z1Including singly-bound ,-COO- ,-OCO- or combinations thereof, and n be 0,1 or
2, but not limited to this.
Liquid crystal 133a may include thermosetting liquid crystal or photo curable liquid crystal.In one embodiment, for example, liquid crystal
133a can be photo curable liquid crystal.In such embodiment that liquid crystal 133a is photo curable liquid crystal, liquid crystal
133a can be solidified by having the ultraviolet light of wavelength in the range of from about 250nm to about 400nm.
In one embodiment, length of delay in the plane of liquid crystal layer 133 (below, referred to as " delay in plane ") can be with
With delay (R in the plane of second phase retardation layer 130 described abovee2) it is substantially the same, for 450nm, 550nm and
Postpone (R in the plane of the incident light of 650nm wavelengthe2) it can satisfy following relationship 1 and 2.
[relational expression 1]
0.95≤Re2-450nm/Re2-550nm
[relational expression 2]
0.95≤Re2-450nm/Re2-650nm
In relational expression 1 and 2, Re2-450nmIndicate liquid crystal layer 133 for prolonging in the plane of the incident light of about 450nm wavelength
Late, Re2-550nmExpression liquid crystal layer 133 in the plane of the incident light of about 550nm wavelength for postponing, Re2-650nmIndicate liquid crystal layer
133 in the plane of the incident light of about 650nm wavelength for postponing.
In one embodiment, short wavelength's dispersion of liquid crystal layer 133 can satisfy following relationship 3.
[relational expression 3]
1.0≤Re2-450nm/Re2-550nm≤1.2
In relational expression 3, Re2-450nmIndicate liquid crystal layer 133 for postponing in the plane of the incident light of about 450nm wavelength,
Re2-550nmIndicate liquid crystal layer 133 for postponing in the plane of the incident light of about 550nm wavelength.
Liquid crystal layer 133 may include the liquid crystal 133a or a plurality of types of liquid crystal 133a of single type.
Liquid crystal layer 133 may include the synthetic comprising liquid crystal 133a or be formed by the synthetic comprising liquid crystal 133a, remove
Except liquid crystal 133a, which can also include that (such as reaction initiator, surfactant, dissolution are auxiliary for various additives
Help object and/or dispersing agent) and solvent.The synthetic can be coated by solution process such as spin coating, slot coated or ink-jet
Apply, to provide liquid crystal layer 133, the thickness of liquid crystal layer 133 is considered that refractive index etc. and adjusts.
In one embodiment, as described above, one in first phase retardation layer 120 and second phase retardation layer 130
It can be the phase delay layer of λ/2, another in first phase retardation layer 120 and second phase retardation layer 130 can be the phase of λ/4
Position retardation layer.Therefore, first phase retardation layer 120 and second phase retardation layer 130 are combined in predetermined angular, so that after combination
First and second phase delay layers 120 and 130 may be used as circular polarization layer.When the optical axis of first phase retardation layer 120 is used for
The angle with reference to angle is defined as θa, the angle for the optical axis with reference to angle of second phase retardation layer 130
It is defined as θbWhen, θaAnd θbMeet following relationship: θb=2 θa+ 45 °, allow optical film that linearly polarized light is converted to circle
Polarised light.Here, can be the angle of the optical axis relative to polarizer with reference to angle, the optical axis of polarizer can be absorption axiss or
The axis of homology.
In one embodiment, for example, the slow axis of first phase retardation layer 120 and second phase retardation layer 130 it is slow
Axis can be combined to meet following formula: θb=2 θa+45°.In one embodiment, for example, when polarizer 110 optical axis and
When angle between first phase retardation layer 120 can be about 15 °, first phase retardation layer 120 and second phase retardation layer 130
It can be combined at about 60 °, it is, the angle between first phase retardation layer 120 and the optical axis of second phase retardation layer 130 can
Think 60 °.In one embodiment, for example, when the angle between the optical axis and first phase retardation layer 120 of polarizer 110
When being about 10 °, first phase retardation layer 120 and second phase retardation layer 130 can be combined at about 55 °.In an embodiment
In, for example, when the angle between the optical axis of polarizer 110 and first phase retardation layer 120 is about 20 °, first phase delay
Layer 120 and second phase retardation layer 130 can be combined at about 65 °.
In such an embodiment, first phase retardation layer 120 and second phase retardation layer 130 are combined in predetermined angular
Jointly to limit circular polarization layer, so as to be effectively prevented fore external light reflection, and it is significant improve front can
Opinion property.
In such an embodiment, as described above, first phase retardation layer 120 and/or second phase retardation layer 130 wrap
Include the liquid crystal layer 133 for being included in the multiple liquid crystal 133a being upwardly oriented about the inclined side in surface of liquid crystal layer 133, liquid crystal 133a
Inclination angle change along the thickness direction of liquid crystal layer 133, therefore circularly polarized light effect is in all directions by essentially homogeneously
It realizes.Therefore, it is effectively prevented exterior light to reflect in side (for example, left or right side) and front, to significantly improve side
Visibility.
The combination (for example, combination layer) of first phase retardation layer 120 and second phase retardation layer 130 can have reversion
Wavelength dispersion phase delay.Compared with the delay to the light with short wavelength, the wavelength dispersion phase delay of the reversion has pair
The higher delay of light with long wavelength.In one embodiment, for example, first phase retardation layer 120 and second phase are prolonged
The combination of slow layer 130 is for postponing (R in the plane of 450nm, 550nm and 650nm wavelengthe) it can satisfy following relationship 4.
[relational expression 4]
Re0-450nm≤Re0-550nm≤Re0-650nm
In relational expression 4, Re0-450nmIndicate the combination of first phase retardation layer 120 and second phase retardation layer 130 for
Delay, R in the plane of the incident light of about 450nm wavelengthe0-550nmIndicate first phase retardation layer 120 and second phase retardation layer
130 combination in the plane of the incident light of about 550nm wavelength for postponing, Re0-650nmIndicate first phase retardation layer 120 and the
The combination of two phase retardation layer 130 in the plane of the incident light of about 650nm wavelength for postponing.
In one embodiment, for example, the combined wave of first phase retardation layer 120 and second phase retardation layer 130
Long dispersion can satisfy following relationship 5.
[relational expression 5]
0.7≤Re0-450nm/Re0-550nm≤1.0
In relational expression 5, Re0-450nmIndicate the combination of first phase retardation layer 120 and second phase retardation layer 130 for
Delay, R in the plane of the incident light of about 450nm wavelengthe0-550nmIndicate first phase retardation layer 120 and second phase retardation layer
130 combination in the plane of the incident light of about 550nm wavelength for postponing.
In one embodiment, for example, the combined wave of first phase retardation layer 120 and second phase retardation layer 130
Long dispersion can satisfy following relationship 5a.
[relational expression 5a]
0.72≤Re0-450nm/Re0-550nm≤0.92
In one embodiment, for example, the combined wave of first phase retardation layer 120 and second phase retardation layer 130
Long dispersion can satisfy following relationship 5b.
[relational expression 5b]
0.80≤Re0-450nm/Re0-550nm≤0.85
Anti-reflective film 100 in Fig. 1 can also be included between polarizer 110 and second phase retardation layer 130 or
Adhesive layer (not shown) between one phase delay layer 120 and second phase retardation layer 130.Anti-reflective film 100 in Fig. 2 may be used also
To be included between polarizer 110 and first phase retardation layer 120 or in first phase retardation layer 120 and second phase retardation layer
Adhesive layer (not shown) between 130.Adhesive layer allows polarizer 110, first phase retardation layer 120 and/or second phase to prolong
Slow layer 130 is effectively combined with each other or is attached to each other.In such an embodiment, adhesive layer may include for example pressure-sensitive viscous
Mixture is made of such as contact adhesive.
Anti-reflective film 100 can also include the protective layer (not shown) being arranged on the surface of polarizer 110.Protective layer can
To reinforce the functionality of anti-reflective film 100 or improve the durability of anti-reflective film 100, or reduce reflection or dazzle.In a reality
It applies in mode, for example, protective layer may include triacetyl cellulose (TAC) film, but not limited to this.
Anti-reflective film 100 can also include the surface that first phase retardation layer 120 or second phase retardation layer 130 is arranged in
On correcting layer (not shown).Correcting layer may include for example anti-gamut layer, and but not limited to this.
Anti-reflective film 100 can also include the photoresist layer (not shown) extended along edge.Photoresist layer can be along anti-reflective
The periphery for penetrating film 100 extends.Photoresist layer may include opaque material, such as black ink.
Anti-reflective film 100 can be by being sequentially laminated polarizer 110, second phase retardation layer 130 with roll-to-roll method
It is provided with first phase retardation layer 120 or polarizer 110, first phase retardation layer 120 and second phase retardation layer 130, but
It is not limited to this.
Fig. 4 is the schematic diagram of the exterior light antireflection principle for the embodiment for showing anti-reflective film.
Referring to Fig. 4, when the incident non-polarized light (hereinafter referred to as " exterior light ") being externally entering passes through partially
When vibration device 110, only (it is that two polarizations polarized in vertical components are vertical divides the first polarization vertical component of exterior light
Amount) it is transmitted, polarised light is by sequentially passing through second phase retardation layer 130 and first phase retardation layer 120 or first phase
Retardation layer 120 and second phase retardation layer 130 and be converted into circularly polarized light.When circularly polarized light is including substrate, electrode etc.
It is reflected in display panel 40, changes circular polarization, and the circularly polarized light sequentially passes through 120 He of first phase retardation layer
When second phase retardation layer 130 or second phase retardation layer 130 and first phase retardation layer 120, it is vertical to be converted into the second polarization
Component (it is another polarization vertical component in two polarization vertical components).Due to second polarization vertical component be blocked or
It is not allowed to across polarizer 110 and light is not emitted to outside, it is possible to which the effect for preventing external light reflection is provided.
Fig. 5 is that the visual angle for the embodiment for showing the anti-reflective film in Fig. 1 improves the schematic diagram of principle.
Referring to Fig. 5, when along the first optical path OP1, (wherein light passes through second phase retardation layer 130 to exterior light and first phase is prolonged
Slow layer 120) it advances and reaches display panel 40, then along the second optical path OP2, (wherein light is reflected from display panel 40 and is worn again
Cross first phase retardation layer 120 and second phase retardation layer 130) advance when, light have pass through the first optical path OP1 and the second optical path
OP2 changes and is not passed through the polarization direction of polarizer 110, shows exterior light anti-reflection effect.
Here, the first optical path OP1 and the second optical path OP2 can essentially form the mirror image about display panel 40.Therefore,
Second phase retardation layer 130 includes the liquid crystal of upper inclination and orientation in one direction, but is had when exterior light flows serially through
When the first optical path OP1 of opposite directions and the second optical path OP2, phase difference can be by the first optical path OP1 of adduction
The inclination orientation of liquid crystal 133aa and the inclination of the liquid crystal 133ab in the second optical path OP2, which are matched, always to be adjusted.Therefore, in such reality
It applies in mode, anti-reflection effect can be substantially identical in all directions, and can be effectively prevented since exterior light is in side
Gamut caused by the reflection of portion and front, so as to improve side visibility.
Side visibility can be expressed as reflectivity and gamut in side.In an exemplary embodiment, for example, anti-
Reflectance coating the discovery about display panel at 60 ° of side reflectivity can less than or equal to about 1.8%, be, for example, less than or
Equal to about 1.5%, or less than or equal to about 1.2%.
Although the visual angle that Fig. 5 shows the embodiment of the anti-reflective film in display Fig. 1 improves the schematic diagram of principle, generation
For the anti-reflective film in Fig. 1, the anti-reflective film in Fig. 2 also can be applied to Fig. 5.
Such embodiment of anti-reflective film 100 can be applied to organic light emitting apparatus.
Below, it will be described in the embodiment of organic light emitting apparatus.
Fig. 6 is the sectional view for schematically showing the embodiment of organic light emitting apparatus.
Referring to Fig. 6, the embodiment of organic light emitting apparatus includes organic light emitting display panel 200 and is arranged in organic light emission
The side of display panel 200 or the anti-reflective film 100 on surface.
Organic light emitting display panel 200 includes basal substrate 210, lower electrode 220, organic emission layer 230, top electrode 240
With hermetic sealing substrate 250.
Basal substrate 210 may include glass or plastics, or be made of glass or plastics.
In such an embodiment, one in lower electrode 220 and top electrode 240 can be anode, lower 220 He of electrode
Another in top electrode 240 can be cathode.Anode is that hole is injected electrode therein and may include with high work content
Several conductive materials, cathode are that electronics is injected electrode therein and may include the conductive material with low work function.Lower electricity
At least one of pole 220 and top electrode 240 may include allow to be emitted to transparent conductive material that light thereon passes through or by
It is made, such as indium tin oxide (ITO) or indium-zinc oxide (IZO).
Organic emission layer 230 includes the organic material that can be shone when voltage is applied to lower electrode 220 and top electrode 240
Material.
In one embodiment, lower electrode 220, organic emission layer 230 and top electrode 240 can have micro-cavity structure.?
In such embodiment, one in lower electrode 220 and top electrode 240 can be transflection electrode, lower electrode 220 and top electrode
Another in 240 can be reflecting electrode.In such an embodiment, luminous effect can be improved due to micro-cavity structure
Rate.
In one embodiment, auxiliary layer (not shown) can further be arranged or provide in lower electrode 220 and organic hair
It penetrates between layer 230 and between top electrode 240 and organic emission layer 230.Auxiliary layer may include hole transmission layer, hole note
Enter layer, electron injecting layer and electron transfer layer with balance electronic and hole, but not limited to this.
Hermetic sealing substrate 250 can be made for example including glass, metal or polymer, or by glass, metal or polymer, and
Lower electrode 220, organic emission layer 230 and top electrode 240 can be sealed to prevent moisture and/or oxygen to be externally entering.
The light in organic light emitting display panel 200 can be set from the light emitting side that it emits in anti-reflective film 100.One
In embodiment, organic light emitting apparatus have bottom-emission structure situation (wherein light by the side of basal substrate 210 or
Surface emitting) under, anti-reflective film 100 can be set on the outside or outer surface of basal substrate 210.Have in organic light emitting apparatus
In the alternate embodiment for having top emission structure (wherein side or surface emitting of the light by hermetic sealing substrate 250), anti-reflective
Penetrating film 100 can be set on the outside or outer surface of hermetic sealing substrate 250.
In such an embodiment, the embodiment substantially phase of anti-reflective film 100 and anti-reflective film described above
Together, its any duplicate detailed description will be omitted.In one embodiment, the first surface of the liquid crystal layer of anti-reflective film 100 can
To be arranged than organic light emitting display panel closer to polarizer, the second surface of the liquid crystal layer of anti-reflective film 100 can be than polarization
Device is arranged closer to organic light emitting display panel.In one embodiment, the first surface of the liquid crystal layer of anti-reflective film 100 can be with
It is arranged than polarizer closer to organic light emitting display panel, the second surface of the liquid crystal layer of anti-reflective film 100 can be than organic hair
Light display panel is arranged closer to polarizer.
In such an embodiment, anti-reflective film 100 can prevent exterior light by metal such as organic light emitting display face
The electrode of plate 200 is reflected and is emitted to outside organic light emitting apparatus, therefore improves the display characteristic of organic light emitting apparatus.
In such an embodiment, anti-reflective film 100 can not only be shown substantially the same in all directions
Anti-reflection effect, and can effectively prevent as described above due to exterior light color caused by the reflection of side and front
It moves, then improves side visibility.
Below, embodiment will be more fully described referring to example.However, these examples are only exemplary, this hairs
It is bright without being limited thereto.
The manufacture of anti-reflective film
Example 1
In order to simulate assessment, the phase delay layer of polarizer, λ/4 (Re2=138nm), the phase delay layer of λ/2 (Re1=
275nm) and reflector is by one layer of sequence setting on another layer, such as is laminated.Here, the phase delay layer of λ/4 includes liquid crystal
Layer, the liquid crystal layer include multiple liquid crystal, and multiple liquid crystal has in 3 ° of low dip angle (minimal tilt angle) and 60 ° of high dip
The inclination angle gradually changed between angle (allowable angle of inclination).Polarizer is set as the shaft angle with 90 °, and the phase delay layer of λ/2 is set
It sets at 75 °, the phase delay layer of λ/4 is arranged at 15 °.
Example 2
In order to simulate assessment, the phase delay layer of polarizer, λ/4 (Re2=124nm), the phase delay layer of λ/2 (Re1=
248nm) and reflector is by one layer of sequence setting on another layer, such as is laminated.Here, the phase delay layer of λ/4 includes liquid crystal
Layer, the liquid crystal layer include multiple liquid crystal, and multiple liquid crystal has in 3 ° of low dip angle (minimal tilt angle) and 60 ° of high dip
The inclination angle gradually changed between angle (allowable angle of inclination).Polarizer is set as the shaft angle with 90 °, and the phase delay layer of λ/2 is set
It sets at 75 °, the phase delay layer of λ/4 is arranged at 15 °.
Example 3
In order to simulate assessment, the phase delay layer of polarizer, λ/4 (Re2=124nm), the phase delay layer of λ/2 (Re1=
248nm) and reflector is by one layer of sequence setting on another layer, such as is laminated.Here, the phase delay layer of λ/4 is configured to wrap
Liquid crystal layer is included, which includes multiple liquid crystal, and multiple liquid crystal has 3 ° of low dip angle (minimal tilt angle) and 45 °
The inclination angle gradually changed between high dip angle (allowable angle of inclination).Polarizer is set as the shaft angle with 90 °, and the phase of λ/2 is prolonged
At 75 °, the phase delay layer of λ/4 is arranged at 15 ° for slow layer setting.
Example 4
In order to simulate assessment, the phase delay layer of polarizer, λ/4 (Re2=124nm), the phase delay layer of λ/2 (Re1=
248nm) and reflector is by one layer of sequence setting on another layer, such as is laminated.Here, the phase delay layer of λ/4 includes liquid crystal
Layer, the liquid crystal layer include multiple liquid crystal, and multiple liquid crystal has in 3 ° of low dip angle (minimal tilt angle) and 30 ° of high dip
The inclination angle gradually changed between angle (allowable angle of inclination).Polarizer is set as the shaft angle with 90 °, and the phase delay layer of λ/2 is set
It sets at 75 °, the phase delay layer of λ/4 is arranged at 15 °.
Example 5
In order to simulate assessment, the phase delay layer of polarizer, λ/4 (Re2=124nm), the phase delay layer of λ/2 (Re1=
248nm) and reflector is by one layer of sequence setting on another layer, such as is laminated.Here, the phase delay layer of λ/4 is configured to wrap
Liquid crystal layer is included, which includes multiple liquid crystal, and multiple liquid crystal has 3 ° of low dip angle (minimal tilt angle) and 75 °
The inclination angle gradually changed between high dip angle (allowable angle of inclination).Polarizer is set as the shaft angle with 90 °, and the phase of λ/2 is prolonged
At 75 °, the phase delay layer of λ/4 is arranged at 15 ° for slow layer setting.
Comparative example 1
It is simulated according to method identical with example 1, in addition to the phase delay layer of λ/4 includes the inclination with zero degree (0 °)
Except multiple liquid crystal (A plate) at angle.
Comparative example 2
It is simulated according to method identical with example 2, in addition to the phase delay layer of λ/4 includes the inclination with zero degree (0 °)
Except multiple liquid crystal (A plate) at angle.
Assessment
The reflectivity of anti-reflective film example 1 to 5 and comparative example 1 and 2 is assessed from its front and side.
Reflectivity is assessed using LCD Master equipment (Shintech company).
As a result it shows, and is shown in Fig. 7 to 9 in tables 1 and 2.
Fig. 7 is shown in the allowable angle of inclination according to liquid crystal in the anti-reflective film of example 2 to 5 and comparative example 2 and 60 ° of sides
The figure of the relationship between reflectivity at surface, Fig. 8 show in the anti-reflective film according to example 1 depending in all directions
In the analog result of the reflectivity at visual angle, Fig. 9 show in the anti-reflective film according to comparative example 1 in all directions depend on view
The analog result of the reflectivity at angle.
(table 1)
| Re1λ/2 | Re2λ/4 | The inclination angle of liquid crystal | Front reflectivity | 60 ° of side reflectivity | |
| Example 1 | 275nm | 138nm | 3-60° | 0.0% | 1.2% |
| Comparative example 1 | 275nm | 138nm | 0° | 0.0% | 2.3% |
(table 2)
| Re1λ/2 | Re2λ/4 | The inclination angle of liquid crystal | Front reflectivity | 60 ° of side reflectivity | |
| Example 2 | 248nm | 124nm | 3-60° | 0.1% | 1.0% |
| Example 3 | 248nm | 124nm | 3-45° | 0.1% | 1.1% |
| Example 4 | 248nm | 124nm | 3-30° | 0.1% | 1.7% |
| Example 5 | 248nm | 124nm | 3-75° | 0.1% | 1.8% |
| Comparative example 2 | 248nm | 124nm | 0° | 0.1% | 2.1% |
Referring to table 1, compared with the anti-reflective film of comparative example 1, the anti-reflective film of example 1 is shown in the method about display panel
Line is at 60 ° of the rather low reflectivity in side.Referring to Fig. 8 and 9, compared with the anti-reflective film of comparative example 1, the antireflection of example 1
Film shows the gamut being substantially reduced in each angle.
Referring to table 2 and Fig. 7, compared with the anti-reflective film of comparative example 2, the anti-reflective film of example 2 to 5 is shown about display
The normal of panel at 60 ° of side significant low reflectivity.
Therefore, it can be enhanced in terms of visibility according to the anti-reflective film of example 1 to 5.
Although having been combined it is now recognized that feasible exemplary embodiment describes the disclosure, it will be understood that, this hair
It is bright to be not limited to disclosed embodiment, but be included in the spirit and scope of claims on the contrary, it is intended to cover
Various modifications and equivalent arrangements.
This application claims the preferential of the South Korea patent application No.10-2014-0190805 submitted on December 26th, 2014
Power, content are fully incorporated by reference thereto.
Claims (25)
1. a kind of anti-reflective film of the reflection for preventing exterior light, comprising:
Polarizer limits the light incident side of the anti-reflective film and is configured to exterior light being changed into linearly polarized light；
First phase retardation layer, the first phase retardation layer are the phase delay layers of λ/2；With
Second phase retardation layer, the second phase retardation layer are the phase delay layers of λ/4,
Wherein the second phase retardation layer includes having first surface and the second surface opposite with the first surface
Liquid crystal layer, and
Wherein the liquid crystal layer include about its surface liquid crystal that non-vertically inclined side is upwardly oriented,
The inclination angle of the liquid crystal of the liquid crystal layer of the second phase retardation layer is from the first surface to described second
Surface is gradually increased,
Wherein the combination of the first phase retardation layer and the second phase retardation layer is used as circular polarization layer, and
Wherein the combination of the first phase retardation layer and the second phase retardation layer is for about 450nm, about 550nm peace treaty
Deferred gratification is in the plane of 650nm wavelength with lower inequality: Re0-450nm≤Re0-550nm≤Re0-650nm,
Wherein Re0-450nmIndicate the combination of the first phase retardation layer and the second phase retardation layer for about 450nm wavelength
Incident light plane in delay,
Re0-550nmIndicate combination the entering for about 550nm wavelength of the first phase retardation layer and the second phase retardation layer
Delay in the plane of light is penetrated, and
Re0-650nmIndicate combination the entering for about 650nm wavelength of the first phase retardation layer and the second phase retardation layer
Penetrate delay in the plane of light.
2. anti-reflective film as described in claim 1, wherein the allowable angle of inclination of the liquid crystal is in the range from 30 degree to 75 degree
It is interior.
3. anti-reflective film as described in claim 1, wherein the inclination angle of the liquid crystal near the first surface is greater than zero
It spends and is less than or equal to 5 degree.
4. anti-reflective film as claimed in claim 3, wherein the second phase retardation layer further includes contacting the liquid crystal layer
The both alignment layers of the first surface.
5. anti-reflective film as described in claim 1, wherein the liquid crystal layer is for about 450nm, about 550nm and about 650nm wave
Deferred gratification is in long plane with lower inequality: 0.95≤Re2-450nm/Re2-550nm；And 0.95≤Re2-550nm/Re2-650nm,
Wherein Re2-450nmIndicate the liquid crystal layer for postponing in the plane of the incident light of about 450nm wavelength,
Re2-550nmIndicate the liquid crystal layer for postponing in the plane of the incident light of about 550nm wavelength, and
Re2-650nmIndicate the liquid crystal layer for postponing in the plane of the incident light of about 650nm wavelength.
6. anti-reflective film as described in claim 1, wherein the wavelength dispersion of the liquid crystal layer meets with lower inequality: 1.0≤
Re2-450nm/Re2-550nm≤ 1.2,
Wherein Re2-450nmIndicate the liquid crystal layer for postponing in the plane of the incident light of about 450nm wavelength, and
Re2-550nmIndicate the liquid crystal layer for postponing in the plane of the incident light of about 550nm wavelength.
7. anti-reflective film as described in claim 1, wherein the first phase retardation layer and the second phase retardation layer
Combined short wavelength's dispersion meets with lower inequality: 0.7≤Re0-450nm/Re0-550nm≤ 1.0,
Wherein Re0-450nmIndicate the combination of the first phase retardation layer and the second phase retardation layer for about 450nm wavelength
Incident light plane in delay,
Re0-550nmIndicate combination the entering for about 550nm wavelength of the first phase retardation layer and the second phase retardation layer
Penetrate delay in the plane of light.
8. anti-reflective film as described in claim 1, wherein the light of the optical axis of the first phase retardation layer and the polarizer
Angle, θ between axisaAnd the second phase retardation layer optical axis and the polarizer optical axis between angle, θbMeet following
Formula: θb=2 θa+45°。
9. anti-reflective film as described in claim 1 meets wherein the first phase retardation layer has with the folding of lower inequality
Penetrate rate: nx1>ny1；And nx1>nz1,
Wherein nx1Indicate the refractive index at the slow axis of the first phase retardation layer,
ny1Indicate the refractive index at the fast axle of the first phase retardation layer, and
nz1It indicates perpendicular to the refractive index on the slow axis of the first phase retardation layer and the direction of fast axle.
10. anti-reflective film as claimed in claim 9, wherein the first phase retardation layer includes the polymeric layer elongated.
11. anti-reflective film as described in claim 1, wherein the anti-reflective film includes the polarizer, setting described inclined
The first phase retardation layer on vibration device and described in being arranged between the polarizer and the first phase retardation layer
Second phase retardation layer.
12. anti-reflective film as described in claim 1, wherein the anti-reflective film includes the polarizer of sequence stacking, institute
State first phase retardation layer and the second phase retardation layer.
13. a kind of oled device, comprising:
Organic light emitting display panel；With
For preventing the anti-reflective film of the reflection of exterior light, in the organic light emitting display panel, which includes:
Polarizer limits the light incident side of the anti-reflective film and is configured to exterior light being changed into linearly polarized light；
First phase retardation layer, the first phase retardation layer are the phase delay layers of λ/2；And
Second phase retardation layer, the second phase retardation layer are the phase delay layers of λ/4,
Wherein the second phase retardation layer includes having first surface and the second surface opposite with the first surface
Liquid crystal layer, and
The liquid crystal layer is included in about its surface liquid crystal that non-vertically inclined side is upwardly oriented,
The inclination angle of the liquid crystal of the liquid crystal layer of the second phase retardation layer is from the first surface to described second
Surface is gradually increased,
Wherein the combination of the first phase retardation layer and the second phase retardation layer is used as circular polarization layer, and
Wherein the combination of the first phase retardation layer and the second phase retardation layer is for about 450nm, about 550nm peace treaty
Deferred gratification is in the plane of 650nm wavelength with lower inequality: Re0-450nm≤Re0-550nm≤Re0-650nm,
Wherein Re0-450nmIndicate the combination of the first phase retardation layer and the second phase retardation layer for about 450nm wavelength
Incident light plane in delay,
Re0-550nmIndicate combination the entering for about 550nm wavelength of the first phase retardation layer and the second phase retardation layer
Delay in the plane of light is penetrated, and
Re0-650nmIndicate combination the entering for about 650nm wavelength of the first phase retardation layer and the second phase retardation layer
Penetrate delay in the plane of light.
14. oled device as claimed in claim 13, wherein
The first surface of the liquid crystal layer is arranged than the organic light emitting display panel closer to the polarizer, and
The second surface of the liquid crystal layer is arranged than the polarizer closer to the organic light emitting display panel.
15. oled device as claimed in claim 13, wherein the allowable angle of inclination of the liquid crystal is from 30 degree
To in the range of 75 degree.
16. oled device as claimed in claim 13, wherein the liquid crystal near the first surface
Inclination angle be greater than zero degree and be less than or equal to 5 degree.
17. oled device as claimed in claim 13, wherein the second phase retardation layer further includes contact
The both alignment layers of the first surface of the liquid crystal layer.
18. oled device as claimed in claim 13, wherein the liquid crystal layer is for about 450nm, about 550nm
Deferred gratification is in the plane of about 650nm wavelength with lower inequality: 0.95≤Re2-450nm/Re2-550nm；0.95≤Re2-550nm/
Re2-650nm,
Wherein Re2-450nmIndicate the liquid crystal layer for postponing in the plane of the incident light of about 450nm wavelength,
Re2-550nmIndicate the liquid crystal layer for postponing in the plane of the incident light of about 550nm wavelength, and
Re2-650nmIndicate the liquid crystal layer for postponing in the plane of the incident light of about 650nm wavelength.
19. oled device as claimed in claim 13, wherein the wavelength dispersion satisfaction of the liquid crystal layer is following
Inequality: 1.0≤Re2-450nm/Re2-550nm≤ 1.2,
Wherein Re2-450nmIndicate the liquid crystal layer for postponing in the plane of the incident light of about 450nm wavelength,
Re2-550nmIndicate the liquid crystal layer for postponing in the plane of the incident light of about 550nm wavelength.
20. oled device as claimed in claim 13, wherein the first phase retardation layer and described second
Combined short wavelength's dispersion of phase delay layer meets with lower inequality: 0.7≤Re0-450nm/Re0-550nm≤ 1.0,
Wherein Re0-450nmIndicate the combination of the first phase retardation layer and the second phase retardation layer for about 450nm wavelength
Incident light plane in delay,
Re0-550nmIndicate combination the entering for about 550nm wavelength of the first phase retardation layer and the second phase retardation layer
Penetrate delay in the plane of light.
21. oled device as claimed in claim 13, wherein the optical axis of the first phase retardation layer and institute
State the angle, θ between the optical axis of polarizeraAnd the second phase retardation layer optical axis and the polarizer optical axis between
Angle, θbMeet following formula: θb=2 θa+45°。
22. oled device as claimed in claim 13, wherein the first phase retardation layer has while expiring
It is enough the refractive index of lower inequality: nx1>ny1；And nx1>nz1,
Wherein
nx1Indicate the refractive index at the slow axis of the first phase retardation layer,
ny1Indicate the refractive index at the fast axle of the first phase retardation layer,
nz1It indicates perpendicular to the refractive index on the slow axis of the first phase retardation layer and the direction of fast axle.
23. oled device as claimed in claim 22, wherein the first phase retardation layer includes elongating
Polymeric layer.
24. oled device as claimed in claim 13, wherein the anti-reflective film includes the polarizer, sets
It sets in the first phase retardation layer on the polarizer and is arranged between the polarizer and the first phase retardation layer
The second phase retardation layer.
25. oled device as claimed in claim 13, wherein the anti-reflective film includes the institute of sequence stacking
State polarizer, the first phase retardation layer and the second phase retardation layer.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20140190805 | 2014-12-26 | ||
| KR10-2014-0190805 | 2014-12-26 | ||
| KR10-2015-0183863 | 2015-12-22 | ||
| KR1020150183863A KR20160079687A (en) | 2014-12-26 | 2015-12-22 | Antireflection film and organic light emitting diode device provided with the same |
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| KR102024264B1 (en) * | 2017-01-25 | 2019-09-23 | 주식회사 엘지화학 | Optical filter for anti-reflection and organic light-emitting device |
| CN106711184B (en) * | 2017-03-14 | 2020-01-31 | 上海天马微电子有限公司 | Display panel manufacturing method, display panel and display device |
| EP3614183B1 (en) * | 2017-04-20 | 2022-09-14 | LG Chem, Ltd. | Anti-reflection optical filter and organic light-emitting device |
| CN110133864A (en) * | 2019-05-30 | 2019-08-16 | 京东方科技集团股份有限公司 | 3 d display device and its manufacturing method |
| CN114661179A (en) | 2020-12-23 | 2022-06-24 | 京东方科技集团股份有限公司 | Flexible touch display module and touch display device with same |
| CN112285977B (en) * | 2020-12-28 | 2021-03-02 | 北京瑞波科技术有限公司 | Phase delay device, preparation method thereof and display equipment |
| TWI757182B (en) | 2021-05-19 | 2022-03-01 | 國立中山大學 | Projection type transparent display |
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| CN1818723A (en) * | 2005-02-08 | 2006-08-16 | 日东电工株式会社 | Retardation film, polarizing element, liquid crystal panel, and liquid crystal apparatus |
| CN101225309A (en) * | 2006-06-13 | 2008-07-23 | 索尼株式会社 | Polymerizable liquid crystal composition, optical device, method of manufacturing optical device, and liquid crystal display |
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| US20090002609A1 (en) * | 2007-05-18 | 2009-01-01 | Mitsutaka Okita | Liquid crystal display device |
| TWI564598B (en) * | 2011-10-12 | 2017-01-01 | Sumitomo Chemical Co | A polarizing film, a circularly polarizing plate, and the like |
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| CN1741097A (en) * | 2004-08-25 | 2006-03-01 | 三星电子株式会社 | The method of transflective display device and this transflective display device of manufacturing |
| CN1818723A (en) * | 2005-02-08 | 2006-08-16 | 日东电工株式会社 | Retardation film, polarizing element, liquid crystal panel, and liquid crystal apparatus |
| CN101225309A (en) * | 2006-06-13 | 2008-07-23 | 索尼株式会社 | Polymerizable liquid crystal composition, optical device, method of manufacturing optical device, and liquid crystal display |
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