CN208721825U - Polarizer, display panel and display device - Google Patents
Polarizer, display panel and display device Download PDFInfo
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- CN208721825U CN208721825U CN201821625092.2U CN201821625092U CN208721825U CN 208721825 U CN208721825 U CN 208721825U CN 201821625092 U CN201821625092 U CN 201821625092U CN 208721825 U CN208721825 U CN 208721825U
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- compensation film
- phase compensation
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- bulge
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
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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
Abstract
This application involves a kind of polarizers, including pressure-sensitive adhesive layer；First phase compensation film is formed on the pressure-sensitive adhesive layer, including incidence surface and light-emitting surface；The incidence surface of the first phase compensation film is contacted with the pressure-sensitive adhesive layer, and multiple grooves with preset shape are offered on the light-emitting surface of the first phase compensation film, and the angle between the side of the groove and the incidence surface is acute angle；Second phase compensation film is formed on the light-emitting surface of the first phase compensation film；Second refractive index of the second phase compensation film is greater than the first refractive index of the first phase compensation film；The second phase compensation film offers multiple bulge-structures matched with the groove shapes, size on the face contacted with the first phase compensation film；Light polarizing film is formed in the second phase compensation film.The application is reflected by the light that setting first phase compensation film, second phase compensation film can make vertical incidence improve film to visual angle, to solve the problems, such as colour cast.
Description
Technical field
This application involves field of display technology, more particularly to polarizer, display panel and display device.
Background technique
With the development of display technology, display device is answered extensively because having many advantages, such as high image quality, power saving, due to fuselage is thin
With, wherein the quality of image quality is to influence the most important factor of consumer experience.Display device generally by backlight module and is placed in
Display panel on backlight module is constituted, and backlight module provides incident light for display panel, which is usually to concentrate vertically
It is incident to display panel, therefore when positive apparent direction watches display screen, preferable display image quality can be obtained, but in side-looking direction
When watching display screen, image quality is poor, and colour cast is than more serious, so that the visual angle normally shown is smaller.Currently, in VA liquid crystal
It uses in (Vertical Alignment liquid crystal, homeotropic alignment liquid crystal) display by the sub- picture in optical filter
Element is again divided into the means of multiple sub-pixels to improve the image quality at side view angle, to expand visual angle.But this method needs
More TFT (Thin Film Transistor, thin film transistor (TFT)) elements drive sub-pixel, certainly will so increase in panel
The metal routing in portion causes the region of light-permeable to become smaller, and influences the light transmittance of panel, influences image quality.And if in order to guarantee light
Degree then needs the performance for improving backlight module, so that it is generated the incident light of more high brightness, so will increase backlight cost again.
Utility model content
Based on this, it is necessary to for the problems such as display device display view angle is small, side view image quality is poor, higher cost, provide
A kind of polarizer and display device.
A kind of polarizer, comprising:
Pressure-sensitive adhesive layer；
First phase compensation film is formed on the pressure-sensitive adhesive layer, including incidence surface and light-emitting surface；The first phase is mended
The incidence surface for repaying film is contacted with the pressure-sensitive adhesive layer, is offered on the light-emitting surface of the first phase compensation film multiple with default
The groove of shape, the angle between the side of the groove and the incidence surface are acute angle；
Second phase compensation film is formed on the light-emitting surface of the first phase compensation film；The second phase compensation film
The second refractive index be greater than the first phase compensation film first refractive index；The second phase compensation film is with described first
Multiple bulge-structures matched with the groove shapes, size are offered on the face of phase compensation film contact；
Light polarizing film is formed in the second phase compensation film.
Above-mentioned polarizer, due to being equipped with first phase compensation film and second phase compensation film, and first refractive index is less than the
When two refractive index, i.e. light are emitted through light-emitting surface subsequently into second phase compensation film from the incidence surface incidence that first phase compensates,
It is to enter in light substantia compacta from light thinning medium, therefore refraction effect can occur in the contact interface of two membranes, light is made to deflect.This
In scheme, second phase compensation film is formed with bulge-structure with what first phase compensation film contacted on one side, the side of the bulge-structure
It is acute angle that face and incidence surface, which form angle, after vertical incidence light enters second phase compensation film, is formed on the surface of bulge-structure
Incidence angle less than 90 °, therefore refraction effect occurs, so that the light of vertical incidence is deflected, to make positive visual angle energy point
It is fitted on side view angle, improves the image quality at side view angle.Further, since entire polarizer does not use additional metal routing, institute
With there is no the transmissivities for influencing light, and then the problem of influence image quality.
The first phase compensation film is negativity single shaft C- compensation film, the first phase in one of the embodiments,
The first refractive index of compensation film is normal refractive index, and the first phase compensation film includes smectic material, the dish
The optical axis of shape liquid crystal molecule material is perpendicular to the incidence surface.
The second phase compensation film is positivity single shaft A- compensation film, the second phase in one of the embodiments,
Second refractive index of compensation film is abnormal refraction rate, and the second phase compensation film includes nematic liquid crystal molecular material, described
The optical axis of nematic liquid crystal molecular material is parallel to the incidence surface.
The bulge-structure is V-arrangement strip projected parts structure, multiple V-arrangement strip projected parts in one of the embodiments,
It is parallel to each other between structure.
The bulge-structure is triangular pyramid bulge-structure, multiple triangular pyramid protrusion knots in one of the embodiments,
Structure on the face that the first phase compensation film is contacted with the second phase compensation film be in two-dimensional matrix array be distributed.
The distance of the adjacent bulge-structure in a first direction is greater than or equal to described in one of the embodiments,
The length of bulge-structure in said first direction；Wherein, with the second phase compensation film and the first phase compensation film
On the face of contact perpendicular to the direction of the extending direction of the V-arrangement strip projected parts structure be first direction.
The face that the second phase compensation film is contacted with the first phase compensation film in one of the embodiments, is square
Shape, the distance of the adjacent triangular pyramid bulge-structure in a first direction are greater than or equal to the triangular pyramid bulge-structure in institute
State the length on first direction；
The distance of the adjacent triangular pyramid bulge-structure in a second direction is greater than or equal to the triangular pyramid protrusion knot
The length of structure in this second direction；Wherein, long with the rectangle using the extending direction of the rectangle width as first direction
The extending direction of degree is second direction.
A kind of polarizer, comprising:
Pressure-sensitive adhesive layer；
First phase compensation film is formed on the pressure-sensitive adhesive layer, including incidence surface and light-emitting surface；The first phase is mended
The incidence surface for repaying film is contacted with the pressure-sensitive adhesive layer, is offered on the light-emitting surface of the first phase compensation film multiple with trigone
The groove of cone cell, the angle between the side and the incidence surface of the triangular pyramid groove is acute angle；
Second phase compensation film is formed on the light-emitting surface of the first phase compensation film；The second phase compensation film
The second refractive index be greater than the first phase compensation film first refractive index；The second phase compensation film is with described first
Multiple triangular pyramid protrusions matched with the triangular pyramid groove shapes, size are offered on the face of phase compensation film contact
Structure；
Light polarizing film is formed in the second phase compensation film.
A kind of display device, comprising:
Backlight module, for providing light source；
Display panel is placed in the backlight module side, for showing picture；
The display panel includes the aforementioned polarizer.
A kind of display panel, the display panel includes incident side and light emission side, including the polarizer as described in aforementioned, institute
State the light emission side that polarizer is set to the display panel.
Detailed description of the invention
Fig. 1 is the composition schematic diagram of the polarizer in an embodiment；
Fig. 2 is the structural schematic diagram of the second phase compensation film in Fig. 1；
Fig. 3 is the oblique view of the second phase compensation film in an embodiment；
Fig. 4 is the composition schematic diagram of the polarizer in another embodiment；
Fig. 5 is the oblique view of the second phase compensation film in another embodiment；
Fig. 6 is the composition schematic diagram of the display panel in an embodiment；
Fig. 7 is the composition schematic diagram of the display device in an embodiment.
Specific embodiment
The application in order to facilitate understanding is described more fully the application below with reference to relevant drawings.In attached drawing
Give the better embodiment of the application.But the application can realize in many different forms, however it is not limited to herein
Described embodiment.On the contrary, the purpose of providing these embodiments is that making to understand more disclosure of this application
Add thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement for illustrative purposes only, are not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and the technical field for belonging to the application
The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein
The purpose of the embodiment of body, it is not intended that in limitation the application.
Display device is generally made of backlight module and the display panel being placed on backlight module, and backlight module is display surface
Plate offer incident light, the incident light usually concentration vertical incidence to display panel, therefore when positive apparent direction watches display screen,
Preferable display image quality can be obtained, but when side-looking direction watches display screen, image quality is poor, and colour cast is than more serious, so that just
The visual angle often shown is smaller.
As shown in Figure 1, polarizer may include pressure-sensitive adhesive layer 10, first phase compensation film 20, second phase compensation film 30
With light polarizing film 40.Pressure-sensitive adhesive layer 10 is mainly used for bonding polarizer and other assemblies.Wherein, first phase compensation film 20
It is formed on pressure-sensitive adhesive layer 10, first phase compensation film 20 includes incidence surface and light-emitting surface, and incidence surface is receive incident light one
The incidence surface in face, first phase compensation film 20 is contacted with pressure-sensitive adhesive layer 10, and light enters first phase compensation film 20 from the plane of incidence
And projected from light-emitting surface, light-emitting surface is equipped with multiple grooves 220 with preset shape, the side of groove 220 and incidence surface institute
The angle of formation is α, and α is acute angle, meets 0 ° of 90 ° of < α <.Second phase compensation film 30 is formed in first phase compensation film 20
On, second phase compensation film 30 offers multiple and 220 shape of groove, size on the face contacted with first phase compensation film 20
Bulge-structure 310 all the same, i.e. second phase compensation film 30 and first phase compensation film 20 can be by bulge-structures 310 and recessed
Slot 220 realizes complete fitting.First phase compensation film 20 has first refractive index n1, and second phase compensation film 30 has the second folding
Rate n2 is penetrated, first refractive index n1 is less than the second refractive index n2.Enter second phase compensation when light penetrates first phase compensation film 20
It is to enter light substantia compacta from light thinning medium, therefore in contact circle of first phase compensation film 20 and second phase compensation film 30 when film 30
Face can reflect.In a display device, since most light are vertical incidence into polarizer, i.e., most light
Perpendicular to incidence surface, this programme by the first phase compensation film 20 and second phase compensation film 30 of setting different refractivity and
The light-emitting surface of second phase compensation film 30 is arranged bulge-structure 310, and vertical incidence light is incident to the from first phase compensation film 20
When two phase compensation film 30, it in conjunction with the surface characteristics of bulge-structure 310, can reflect, change on the surface of bulge-structure 310
The propagation path of vertical incidence light, makes light deflect, so that positive visual angle light type energy be made to be assigned to big visual angle, improves side view
The image quality at angle.Polarizer 10 further includes light polarizing film 40, and light polarizing film 40 is used to carry out polarization manipulation to incident light and projects polarised light.
In one embodiment, light polarizing film 40 can be PVA (Polyvinyl alcohol, polyvinyl alcohol) material, main right
Polarised light plays a part of to absorb and penetrate, and light polarizing film 40 chooses current product common on the market, and penetrating shaft is parallel to 90/
270 degree of directions, absorption axiss are parallel to 0/180 degree of direction.Certainly, light polarizing film 40 can also choose penetrating shaft and be parallel to 0/180
Direction is spent, absorption axiss are parallel to the product in 90/270 degree of direction.
As shown in connection with fig. 2, it when light R0, which vertically penetrates first phase compensation film 20, enters second phase compensation film 30, hangs down
Straight incidence angle of the incident light at 310 surface of bulge-structure is γ, 0 90 ° of < γ <, therefore light can reflect, refraction angle
For θ, since light is to enter to have the second refractive index from the first phase compensation film 20 (light thinning medium) with first refractive index
Second phase compensation film 30 (light substantia compacta), so γ is greater than θ, i.e. light propagation path changes, and light R1 deviates original hang down
Straight incident direction is dissipated to side, therefore is had more light and injected side, and the image quality of side view angle is improved.It is understood that
, first refractive index n1 and the difference of the second refractive index n2 are bigger, and refraction angle when reflecting is bigger, easier to face
Light type energy is assigned to big visual angle.In one embodiment, the value range of first refractive index n1 is 1.0 < n1 < 2.5, the second folding
The value range for penetrating rate n2 is 1.0 < n1 < 2.5.In one embodiment, if the optional value range of m=n2-n1, m are
0.01 < m < 1.5.
As shown in Fig. 2, referring concurrently to Fig. 3.It is triangular prism strip structure in the bulge-structure 310 of second phase compensation film 30
When (V-arrangement strip projected parts structure), the spacing between adjacent triangular prism protrusion in a first direction is greater than or equal to trigone
The length of column protrusion in a first direction.Here, on the face contacted with first phase compensation film 20 with second phase compensation film 30
Extending direction perpendicular to triangular prism strip projected parts structure (V-arrangement strip projected parts structure) is first direction, it is understood that for along X
The extending direction of axis.Triangular prism can be regular triangular prism, may not be regular triangular prism；The size of multiple triangular prisms can phase
It together, can not also be identical.Multiple triangular prism bulge-structures 310 are contacted in second phase compensation film 30 with first phase compensation film 20
Face on be parallel to each other.And the face that second phase compensation film 30 is contacted with first phase compensation film 20 is rectangle.Such as Fig. 2 institute
Showing, Px is adjacent the distance between triangular prism strip structure, and Lx is the length of triangular prism strip structure in a first direction,
Px, Lx meet: Px >=Lx.
Similarly, identical as triangular prism protrusion due to can have when bulge-structure 310 is triangular pyramid bulge-structure
Cross section, so, herein can be referring concurrently to Fig. 2 and Fig. 4, adjacent triangular pyramid bulge-structure 310 is in a first direction
Distance is greater than or equal to the length of triangular pyramid bulge-structure 310 in a first direction；Adjacent triangular pyramid bulge-structure 310 is
Distance on two directions is greater than or equal to the length of triangular pyramid bulge-structure 310 in a second direction, wherein due to second phase
The face that compensation film 30 is contacted with first phase compensation film 20 is rectangle, therefore, using the extending direction of rectangle width as first direction,
It can be understood as the extending direction along X-axis；Using the extending direction of rectangle length as second direction, it is to be understood that for along Y-axis
Extending direction.Triangular prism can be positive triangular pyramid, may not be positive triangular pyramid, and the size of multiple triangular pyramids can be identical,
It can not also be identical.It is appreciated that in the case where not departing from the central principle of the application can shape to groove, size,
Size is changed to adapt to the actual needs of those skilled in the art.As shown in figure 5, Px is adjacent triangular pyramid bulge-structure
310 distance in a first direction；Py is the distance of adjacent triangular pyramid bulge-structure 310 in a second direction；Lx is trigone
Bore the length of bulge-structure 310 in a first direction；Ly is the length of triangular pyramid bulge-structure 310 in a second direction.Px,
Py, Lx, Ly meet: Px >=Lx；Py≥Ly.As Px > Lx, Py > Ly, there is interval in adjacent protrusion structure 310, i.e. protrusion knot
Structure 310 is distributed in two-dimensional matrix array, when light travels to light substantia compacta from light thinning medium, so that it may make vertically to enter by interval and protrusion
It penetrates light to dissipate towards side, will further face light energy and be assigned to side view angle, and improve the image quality at side view angle.
It further, can also be in two-dimensional matrix between multiple V-arrangement strip projected parts structures when bulge-structure is V-arrangement strip
Array distribution, the arrangement mode in two dimension are referred to the description of front triangular pyramid bulge-structure, herein not further
It repeats.It is spaced between adjacent protrusion structure due to existing, so protrusion knot is distributed in two-dimensional matrix array, light is propagated from light thinning medium
When to light substantia compacta, so that it may dissipate vertical incidence light towards side by interval and protrusion, will further face light energy distribution
To side view angle, the image quality at side view angle is improved.
First phase compensation film 20 and second phase compensation film 30 can be made of the transparent or semitransparent material of light-permeable
And have the function of the uniaxial optical compensation films of phase compensation, in one embodiment, liquid crystal, liquid are filled in phase compensation film
Crystalline substance is birefringent material, two light of normal light and unusual light can be reflected into when light enters liquid crystal, wherein the refraction of normal light
Rate is normal refractive index, and the refractive index of unusual light is abnormal refraction rate, and abnormal refraction rate direction is direction of an electric field and liquid crystal optic axis
Parallel direction, normal refractive index direction are the electric field direction vertical with liquid crystal optic axis, abnormal refraction rate direction and normal refraction
Rate direction is vertical.In the present embodiment, first phase compensation film 20 can be negativity uniaxial compensation film, be specifically as follows negativity
The normal refractive index of uniaxial C- compensation film, negativity uniaxial C- compensation film is parallel to all directions of light-emitting surface.Negativity is uniaxial
Can be filled smectic inside C- compensation film, smectic is the liquid crystal of plate shape, the optical axis of disc-like liquid crystal with
Incidence surface is vertical, the direction (extraordinary refractive index) abnormal refraction rate nce of disc-like liquid crystal and disk like
The optical axis of liquid crystal is parallel, and direction normal refractive index nco (ordinary refractive index) of disc-like liquid crystal is perpendicular to anti-
Normal direction refractive index nce (extraordinary refractive index), the i.e. direction normal refractive index nco of disc-like liquid crystal
It is parallel to incidence surface, and nco > nce.Second phase compensation film 30 can be positivity uniaxial compensation film, be specifically as follows positivity
Uniaxial A- compensation film, equally has abnormal refraction rate and normal refractive index；It is fillable inside positivity uniaxial A- compensation film
Nematic liquid crystal molecule, nematic liquid crystal molecule are the rodlike type liquid crystal of strip, and the optical axis of nematic liquid crystal is parallel with incidence surface, to
The abnormal refraction rate nae of column phase liquid crystal is parallel with the optical axis of nematic liquid crystal, i.e. the direction abnormal refraction rate nae of nematic liquid crystal
Parallel with incidence surface, the direction normal refractive index nao of nematic liquid crystal is perpendicular to the direction abnormal refraction rate nae, and nae > nao；
In the present embodiment, first refractive index is the abnormal refraction rate nae of second phase compensation film 30, and the second refractive index is C- compensation film
The direction of normal refractive index nco, nae and the direction of nco are each parallel to incidence surface.
Further, the refractive index of first phase compensation film 20 can be 1.0-2.5, and first refractive index here is namely
Normal refractive index, i.e. nco (ordinary refractive index).The abnormal refraction rate (second of second phase compensation film 30
Refractive index) it is greater than the normal refractive index (first refractive index) of first phase compensation film 20.In other words, first phase compensation film 20
It is optically thinner medium for opposite second phase compensation film 30, is for the opposite first phase compensation film 20 of second phase compensation film 30
Optically denser medium.Specifically, the abnormal refraction rate of second phase compensation film 30 and the normal refractive index of first phase compensation film 20 are poor
Value range is optionally 0.01-2.Theoretically, the abnormal refraction rate of second phase compensation film 30 is relative to first phase compensation film
20 normal refractive index difference is bigger, when incident light impinges perpendicularly on, and refraction effect occurs in second phase compensation film 30
It waits, the easier light energy by positive visual angle is assigned to side view angle.
Light polarizing film 40 has absorption axiss and penetrating shaft, and the polarization direction polarization luminous energy parallel with penetrating shaft passes through light polarizing film.
In one embodiment, it is influenced to reduce phase compensation film to the polarization of light, the optical axis (liquid crystal light of optical compensation films can be made
Axis) it is parallel with the penetrating shaft of light polarizing film, polarization direction of the incident light after phase compensation film is parallel with the penetrating shaft of light polarizing film,
Therefore light polarizing film can be passed completely through.In the present solution, being mended since optical compensation films also have the function of phase compensation using optics
Film is repaid in addition to incident light can be made to deflect in interface to expand visual angle, enhances outside the image quality of side view angle, phase can also be played
The effect of compensation.
In traditional technology, usually using polyvinyl alcohol as light polarizing film, and polyvinyl alcohol has extremely strong hydrophily, to protect
The physical characteristic of light polarizing film is protected, mainly plays a part of to absorb and penetrate to polarised light, light polarizing film 40 chooses current city in the application
Common product on face, penetrating shaft are parallel to 90/270 degree of direction, and absorption axiss are parallel to 0/180 degree of direction.It usually need to be
One layer of Triafol T support membrane is arranged in the two sides of polaroid, and Triafol T support membrane has high light transmittance, water resistance
Well and there is certain mechanical strength, polaroid can be protected.In the present embodiment, since the side in polaroid is equipped with
First phase compensation film 20 with groove 220 and the second phase compensation film 30 with protrusion 310, first phase compensation film 20
It both can be carried out phase compensation with second phase compensation film 30 and light deflected, and can also act as protective layer to protect polarisation
Film, therefore can be omitted in polarizer the Triafol T support membrane of polaroid incident side, be conducive to the slimming of product
Design.It should be noted that the thickness of first phase compensation film 20 and thickness (the i.e. D+ in Fig. 2 of second phase compensation film 30
D) suitable thickness need to be met to realize the protective effect to light polarizing film.
It is the composition schematic diagram of the polarizer in another embodiment please continue to refer to Fig. 4, a kind of polarizer can wrap
Include pressure-sensitive adhesive layer 10, first phase compensation film 20, second phase compensation film 30, light polarizing film 40 and support protective film 50.Pressure sensitive adhesive
Layer 10 is mainly used for bonding polarizer and other assemblies.Wherein, first phase compensation film 20 is formed in pressure-sensitive adhesive layer 10
On, first phase compensation film 20 includes incidence surface and light-emitting surface, and incidence surface and the pressure-sensitive adhesive layer 10 of first phase compensation film 20 connect
Touching, incidence surface are the one side for receiving incident light, and light enters first phase compensation film 20 from the plane of incidence and projects from light-emitting surface, out
Smooth surface is equipped with multiple grooves 220 with preset shape；Second phase compensation film 30 is formed in first phase compensation film 20
On light-emitting surface, the first refractive index of first phase compensation film 20 is less than the second refractive index of second phase compensation film 30.First phase
Multiple grooves 220 with preset shape are offered on the light-emitting surface of position compensation film 20, between the side and incidence surface of groove 220
Angle be acute angle.Second phase compensation film 30 is equipped with multiple and groove 220 on the face contacted with first phase compensation film 20
The bulge-structure 310 that shape, size match.Light polarizing film 40 is formed in second phase compensation film 30；Protective film 50 is supported,
It is formed in light polarizing film 40.
It is appreciated that for pressure-sensitive adhesive layer 10, first phase compensation film 20, second phase compensation film 30, light polarizing film 40
Composition, material etc. can refer to the description in previous embodiment, not repeat further herein.
The material for supporting protective film 50 may include polyethylene terephthalate film, three cellulose acetate membrane or poly- first
Any one in base methyl acrylate film.PET (Polyethylene terephthalate, poly terephthalic acid class plastics)
With good optical property and weatherability, amorphous PET plastic has good optical transparence.In addition PET plastic has
There are excellent abrasion performance frictional property and dimensional stability and electrical insulating property.TAC (Triacetyl Cellulose, triacetate fiber
Element), mainly for the protection of LCD polarizer.PMMA (Polymethyl Methacrylate, polymethyl methacrylate), has
Good chemical stability and weatherability.Simultaneously as support protective film 50 plays the role of support and protects light polarizing film 40, institute
To support 50 thickness of protective film to should be ensured that the weatherability of light polarizing film 40 is unaffected, light polarizing film 40 is protected not contact extraneous ring
Border prevents moisture from entering light polarizing film 40.
In one embodiment, resin particle can also be adulterated in support protective film 50 so that support protective film 50 has
The function of combating vertigo is not particularly limited specific doping concentration the application, with known to those skilled in the art and common
Doping concentration.
In one embodiment, one layer of optical thin film can also be coated on the light-emitting surface of support protective film 50 so that support
Protective film 50 has the function of antireflection, thickness the application of the optical thin film of coating is not particularly limited, with this field
Technical staff knows and common thickness.
A kind of polarizer is also provided, polarizer may include: first phase compensation film, including incidence surface and light-emitting surface；The
Multiple grooves with triangular pyramid, the side of triangular pyramid groove and incidence surface are offered on the light-emitting surface of one phase compensation film
Between angle be acute angle；Second phase compensation film is formed on the light-emitting surface of first phase compensation film；Second phase compensation film
The second refractive index be greater than first phase compensation film first refractive index；Second phase compensation film connects with first phase compensation film
Multiple triangular pyramid bulge-structures matched with triangular pyramid groove shapes, size are offered on the face of touching；Light polarizing film is formed
In in second phase compensation film.
Above-described embodiment, by the way that the bulge-structure of multiple triangular pyramids, while basis are arranged in second phase compensation film
Refraction effect caused by the refractive index different from first phase compensation film can make vertical incidence to the incidence of second phase compensation film
Light reflects, so that the light energy at positive visual angle is assigned to side view angle, and then solves the problems, such as colour cast.Further, due to
Entire polarizer does not use additional metal routing, so there is no the transmissivities for influencing light, and then influences asking for image quality
Topic.
The application further relates to a kind of display panel, and display panel may be, for example, LCD (Thin Film Transistor
Liquid Crystal Displayer, Thin Film Transistor-LCD) display panel, OLED (Organic Light-
Emitting Diode, Organic Light Emitting Diode) display panel, QLED (Quantum Dot Light Emitting
Diodes, light emitting diode with quantum dots) display panel, curved face display panel or other display panels.As shown in fig. 6, the display
Panel includes upper polarizer 1000, lower polarizer 2000, upper substrate 3000, lower substrate 4000 and is located in 3000 He of upper substrate
Liquid crystal layer 6000 between lower substrate 4000, light incident sequence in display panel are as follows: be introduced into lower polarizer 2000, then
By lower substrate 4000, secondly pass through liquid crystal layer 6000, enters to inject upper substrate 3000 after the rotation of liquid crystal layer 6000, it is most laggard
Enter upper polarizer 1000.Wherein upper polarizer 1000 is the polarizer of aforementioned polarizer embodiment introduction.Upper polarizer 1000 can
To include first phase compensation film 20, second phase compensation film 30 and light polarizing film 40, first phase compensation film 20 is with the first folding
Penetrate rate, second phase compensation film 30 has the second refractive index, and first refractive index is less than the second refractive index, and first phase compensation film
Multiple grooves 220 with preset shape are offered on 20, the angle between the side and incidence surface of groove 220 is acute angle；Also
It may include support protective film 50, support protective film 50 is formed in light polarizing film 40；Second phase compensation film 30 and first phase
The one side that compensation film 20 contacts is equipped with multiple bulge-structures 310 matched with 220 shape of groove, size.Light is from upper polarisation
Plate 1000 is incident to the first phase compensation film 20 in polarizer 1000 and enters second phase compensation film 30, first phase compensation
Film 20 and second phase compensation film 30 can carry out phase compensation to incident ray.Since light enters light substantia compacta from light thinning medium,
And incident ray is not equal to 90 ° in the incidence angle of at least partly contact surface, therefore refraction effect can occur, make vertical incidence light to
Positive visual angle energy is assigned to side view angle, improves the image quality at side view angle by side view angular deflection.Wherein, the specific structure of polarizer has been
It is being described in detail above, details are not described herein again.
To sum up, in combination with Fig. 1, Fig. 2, with first phase compensation film 20 for negativity uniaxial C- compensation film, first phase
The groove 220 of compensation film 20 is V-arrangement strip groove, and the bulge-structure 310 of second phase compensation film 30 is V-arrangement strip projected parts, partially
The penetrating shaft of light film is parallel to 90/270 ° of direction, and absorption axiss are that the visual angle of the application is sketched for being parallel to 0/180 ° of direction
Improve principle: light first passes through lower polarizer 2000 before entering display panel, subsequently into upper polarizer 1000, upper polarizer 1000
Has the effect absorbed with penetrating to polarised light, light can be divided into horizontal polarization with vertical polarisation component after entering upper polarizer 1000
Light only focus on vertical polarization here since the penetrating shaft of light polarizing film used in this application is parallel to 90/270 ° of direction
The medium interface that the light of component passes through.The light R0 of vertical polarisation component is in the corresponding equivalent refractive index of negativity uniaxial C- compensation film
Light for nco (ordinary refractive index, normal refractive index), vertical polarisation component passes through negativity uniaxial C-
By positivity uniaxial A- compensation film (refractive index corresponding to positivity uniaxial A- compensation film is nae) after compensation film, therefore should
The light of vertical polarization occurs to enter optically denser medium from optically thinner medium at two media contact faces (i.e. V-arrangement strip projected parts in Fig. 2)
The behavior of (nae > nco) cooperates the acute angle formed between the bulge-structure 310 and incidence surface of second phase compensation film 30 to generate folding
It penetrates effect and generates emergent light R1, form the optical phenomena that positive visual angle light type energy distributes big visual angle.Thus by the luminous energy at positive visual angle
Amount is assigned to side view angle, improves colour cast problem.
Similarly, when the penetrating shaft of the light polarizing film 40 used is to be parallel to 0/180 ° of direction, absorption axiss are to be parallel to 90/270 °
Direction.Light first passes through lower polarizer 2000 before entering display panel, and subsequently into upper polarizer 1000, upper polarizer 1000 is to inclined
Vibration light has the effect absorbed with penetrating, and light can be divided into horizontal polarization with vertical polarisation component after entering upper polarizer 1000
Light.Since the penetrating shaft of light polarizing film 40 used herein is parallel 0/180 ° of direction, horizontal polarisation component is only focused on here
The medium interface that passes through of light.The light of horizontal polarisation component passes through 0/180 ° of direction (orthogonal polarized light of penetrating shaft of light polarizing film 40
Absorbed by 40 absorption axiss of light polarizing film, 90/270 ° of direction), it is nco in the corresponding equivalent refractive index of negativity uniaxial C- compensation film
The light of (ordinary refractive index, normal refractive index), horizontal polarisation component passes through negativity uniaxial C- compensation film
Afterwards by positivity uniaxial A- compensation film (refractive index corresponding to positivity uniaxial A- compensation film is nae), therefore the level is inclined
The light of vibration occurs to enter optically denser medium (nae > nco) from optically thinner medium at two media contact faces (i.e. V-arrangement strip projected parts in Fig. 2)
Behavior, cooperate the acute angle that is formed between the bulge-structure 310 and incidence surface of second phase compensation film 30 to generate refraction effect, shape
The optical phenomena at big visual angle is distributed at positive visual angle light type energy.It can also realize with by above-mentioned principle by the light energy at positive visual angle
It is assigned to side view angle, improves colour cast problem.
Fig. 7 is please referred to, is the composition schematic diagram of the display device in an embodiment.A kind of display dress is also disclosed in the application
It sets, including backlight module 5 and the display panel being placed in above backlight module 1, wherein display panel 1 is previous embodiment Jie
The display panel to continue.Backlight module 5 is for providing incident light R0 (Fig. 7 is not indicated), and incident light R0 is concentrated on and vertical direction
In display panel 1 is incident in the range of low-angle, which is smaller than 30 °, most of light that display panel 1 receives
For vertical incidence light, since there are first phase compensation film 20 and second phase compensation film 30 and second phase in display panel 1
The face that compensation film 30 is contacted with first phase compensation film 20 is equipped with multiple bulge-structures 310 with preset shape, ties in protrusion
Vertical incidence light can be carried out deflection by refraction and generate emergent light R1 (Fig. 7 is not indicated) by 310 surface of structure, to will face
Angle energy is assigned to side view angle, improves the image quality at side view angle.The structure of display panel and the knot of the polarizer in display panel
Structure is being described above, and details are not described herein again.Wherein, backlight module 5 may include side entering type LED light source 51, and reflector plate 52 is led
Tabula rasa 53.The upper and lower surface of light guide plate 53 is equipped with strip V-groove, the side wall and side entering type light of 53 lower surface V-groove of light guide plate
Source 51 is parallel, and the V-groove of 53 upper surface of light guide plate and the V-groove of lower surface are mutually perpendicular to.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
The limitation to claim therefore cannot be interpreted as.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the concept of this application, various modifications and improvements can be made, these belong to the protection of the application
Range.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. a kind of polarizer, which is characterized in that the polarizer includes:
Pressure-sensitive adhesive layer；
First phase compensation film is formed on the pressure-sensitive adhesive layer, including incidence surface and light-emitting surface；The first phase compensation film
Incidence surface contacted with the pressure-sensitive adhesive layer, offered on the light-emitting surface of the first phase compensation film it is multiple have preset shape
Groove, the angle between the side of the groove and the incidence surface is acute angle；
Second phase compensation film is formed on the light-emitting surface of the first phase compensation film；The of the second phase compensation film
Two refractive index are greater than the first refractive index of the first phase compensation film；The second phase compensation film with the first phase
Multiple bulge-structures matched with the groove shapes, size are offered on the face of compensation film contact；
Light polarizing film is formed in the second phase compensation film.
2. polarizer according to claim 1, which is characterized in that the first phase compensation film is negativity single shaft C- compensation
Film, the first refractive index of the first phase compensation film are normal refractive index, and the first phase compensation film includes disc-like liquid crystal
Molecular material, the optical axis of the smectic material is perpendicular to the incidence surface.
3. polarizer according to claim 1, which is characterized in that the second phase compensation film is positivity single shaft A- compensation
Film, the second refractive index of the second phase compensation film are abnormal refraction rate, and the second phase compensation film includes nematic phase liquid
The optical axis of brilliant molecular material, the nematic liquid crystal molecular material is parallel to the incidence surface.
4. polarizer according to claim 1, which is characterized in that the bulge-structure is V-arrangement strip projected parts structure, multiple
It is parallel to each other between the V-arrangement strip projected parts structure.
5. polarizer according to claim 1, which is characterized in that the bulge-structure is triangular pyramid bulge-structure, multiple
The triangular pyramid bulge-structure on the face that the second phase compensation film is contacted with the first phase compensation film be in Two-Dimensional Moment
A burst of column distribution.
6. polarizer according to claim 4, which is characterized in that the adjacent bulge-structure in a first direction away from
From more than or equal to the length of the bulge-structure in said first direction；Wherein, with the second phase compensation film and institute
Stating the direction on the face of first phase compensation film contact perpendicular to the extending direction of the V-arrangement strip projected parts structure is first party
To.
7. polarizer according to claim 5, which is characterized in that the second phase compensation film and the first phase are mended
The face for repaying film contact is rectangle, and the distance of the adjacent triangular pyramid bulge-structure in a first direction is greater than or equal to described three
The length of pyramid bulge-structure in said first direction；
The distance of the adjacent triangular pyramid bulge-structure in a second direction is greater than or equal to the triangular pyramid bulge-structure and exists
Length in the second direction；Wherein, using the extending direction of the rectangle width as first direction, with the rectangle length
Extending direction is second direction.
8. a kind of polarizer, which is characterized in that the polarizer includes:
Pressure-sensitive adhesive layer；
First phase compensation film is formed on the pressure-sensitive adhesive layer, including incidence surface and light-emitting surface；The first phase compensation film
Incidence surface contacted with the pressure-sensitive adhesive layer, offered on the light-emitting surface of the first phase compensation film it is multiple have triangular pyramid
Groove, the angle between the side and the incidence surface of the triangular pyramid groove is acute angle；
Second phase compensation film is formed on the light-emitting surface of the first phase compensation film；The of the second phase compensation film
Two refractive index are greater than the first refractive index of the first phase compensation film；The second phase compensation film with the first phase
Multiple triangular pyramid protrusion knots matched with the triangular pyramid groove shapes, size are offered on the face of compensation film contact
Structure；
Light polarizing film is formed in the second phase compensation film.
9. a kind of display device, comprising:
Backlight module, for providing light source；
Display panel is placed in the backlight module side, for showing picture；
It is characterized in that, the display panel includes such as the described in any item polarizers of claim 1-8.
10. a kind of display panel, the display panel includes incident side and light emission side, which is characterized in that including such as claim
The described in any item polarizers of 1-8, the polarizer are set to the light emission side of the display panel.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821625092.2U CN208721825U (en) | 2018-09-30 | 2018-09-30 | Polarizer, display panel and display device |
| PCT/CN2018/120031 WO2020062592A1 (en) | 2018-09-30 | 2018-12-10 | Polarizer and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821625092.2U CN208721825U (en) | 2018-09-30 | 2018-09-30 | Polarizer, display panel and display device |
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| Publication Number | Publication Date |
|---|---|
| CN208721825U true CN208721825U (en) | 2019-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821625092.2U Active CN208721825U (en) | 2018-09-30 | 2018-09-30 | Polarizer, display panel and display device |
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| Country | Link |
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| CN (1) | CN208721825U (en) |
| WO (1) | WO2020062592A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109633987A (en) * | 2019-01-30 | 2019-04-16 | 惠科股份有限公司 | Optical film layer and display device |
| CN113467125A (en) * | 2020-03-11 | 2021-10-01 | 明基材料有限公司 | Liquid crystal display device with a light guide plate |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080006587A (en) * | 2005-04-08 | 2008-01-16 | 쓰리엠 이노베이티브 프로퍼티즈 컴파니 | Structured oriented films for use in displays |
| CN101158778A (en) * | 2007-11-14 | 2008-04-09 | 友达光电（苏州）有限公司 | Wide vision cornea and LCD device using the same |
| JP2009217245A (en) * | 2008-02-13 | 2009-09-24 | Binit:Kk | Polarizing beam splitter, method for producing the same and liquid crystal projector using the same |
| CN201314990Y (en) * | 2008-12-19 | 2009-09-23 | 上海纽发利商贸有限公司 | Wide-angle lens and polarizing plate and LCD device using same |
| WO2011077742A1 (en) * | 2009-12-25 | 2011-06-30 | 三井化学株式会社 | Polarizing diffusion film, production method therefor, and liquid crystal display device comprising polarizing diffusion film |
| CN102707491A (en) * | 2011-11-30 | 2012-10-03 | 京东方科技集团股份有限公司 | Liquid crystal display and method for compensating viewing angle |
| JP6078969B2 (en) * | 2012-03-29 | 2017-02-15 | 大日本印刷株式会社 | Light diffusing film, polarizing plate, and liquid crystal display device |
| DE112013004797B4 (en) * | 2012-09-28 | 2017-02-02 | Fujifilm Corporation | Optical compensation plate |
| JP7152129B2 (en) * | 2015-02-27 | 2022-10-12 | 三星エスディアイ株式会社 | Polarizing plate and liquid crystal display including the same |
| US10281630B2 (en) * | 2016-09-19 | 2019-05-07 | Apple Inc. | Optical films for electronic device displays |
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2018
- 2018-09-30 CN CN201821625092.2U patent/CN208721825U/en active Active
- 2018-12-10 WO PCT/CN2018/120031 patent/WO2020062592A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109633987A (en) * | 2019-01-30 | 2019-04-16 | 惠科股份有限公司 | Optical film layer and display device |
| WO2020155278A1 (en) * | 2019-01-30 | 2020-08-06 | 惠科股份有限公司 | Optical film and display device |
| CN113467125A (en) * | 2020-03-11 | 2021-10-01 | 明基材料有限公司 | Liquid crystal display device with a light guide plate |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020062592A1 (en) | 2020-04-02 |
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