CN109143448A - Structure of polarized light, display panel and display device - Google Patents
Structure of polarized light, display panel and display device Download PDFInfo
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- CN109143448A CN109143448A CN201811163416.XA CN201811163416A CN109143448A CN 109143448 A CN109143448 A CN 109143448A CN 201811163416 A CN201811163416 A CN 201811163416A CN 109143448 A CN109143448 A CN 109143448A
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- light
- protective film
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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
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
- G02B5/3041—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Polarising Elements (AREA)
- Liquid Crystal (AREA)
Abstract
Structure of polarized light, display panel and display device.This application involves a kind of structure of polarized light, comprising: optical compensation films, including incidence surface and light-emitting surface offer multiple grooves with preset shape on the light-emitting surface, and the angle between the side of the groove and the incidence surface is acute angle；Protective film is supported, the support protective film is formed on the light-emitting surface of the optical compensation films；Wherein, the refractive index of the support protective film is greater than the refractive index of the optical compensation films；The one side that the support protective film is contacted with the light-emitting surface is equipped with multiple bulge-structures matched with the groove shapes, size；Light polarizing film is formed on the support protective film.The application by setting there is the support protective film of bulge-structure reflect vertical incidence to the light of support protective film, so that the light energy at positive visual angle is assigned to side view angle to solve the problems, such as colour cast.
Description
Technical field
This application involves field of display technology, more particularly to a kind of structure of polarized light, 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.
Summary of the invention
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 structure of polarized light, display panel and display device.
A kind of structure of polarized light, comprising:
Optical compensation films, including incidence surface and light-emitting surface offer on the light-emitting surface multiple recessed with preset shape
Slot, the angle between the side of the groove and the incidence surface are acute angle；
Protective film is supported, the support protective film is formed on the light-emitting surface of the optical compensation films；Wherein, the support
The first refractive index of protective film is greater than the second refractive index of the optical compensation films；The support protective film connects with the light-emitting surface
The one side of touching is equipped with multiple bulge-structures matched with the groove shapes, size；
Light polarizing film is formed on the support protective film.
Above-mentioned polarizer, due to being equipped with optical compensation films and support protective film, and first refractive index is greater than the second refractive index,
I.e. light be incident in optical compensation films from the incidence surface of optical compensation films and penetrate optical compensation films enter support protective film when, be
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.We
In case, what support protective film was contacted with light-emitting surface is formed with bulge-structure on one side, and side and the incidence surface of the bulge-structure are formed
Angle is acute angle, after vertical incidence light enters support protective film, in the incidence angle that the surface of bulge-structure is formed less than 90 °, because
Refraction effect occurs in this, and the light of vertical incidence is made to deflect, so that positive visual angle energy be made to be assigned to side view angle, improves side view
The image quality at angle.Further, since entire structure of polarized light does not use additional metal routing, so there is no influence light
Transmissivity, and then the problem of influence image quality.
The optical compensation films are uniaxial negativity compensation film in one of the embodiments, and second refractive index is
The normal refractive index of the uniaxial negativity compensation film, the uniaxial negativity compensation film include smectic, the dish
The optical axis of shape liquid crystal molecule is perpendicular to the incidence surface.
The light polarizing film has penetrating shaft in one of the embodiments, and polarization direction is parallel to the light of the penetrating shaft
Line can pass through the light polarizing film, and the optical axis of the negativity uniaxial compensation film is vertical with the penetrating shaft.
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 light-emitting surface 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, on the light-emitting surface perpendicular to the V-arrangement strip projected parts structure
The direction of extending direction is first direction.
The face that the support protective film is contacted with the light-emitting surface in one of the embodiments, is rectangle, adjacent institute
The distance of triangular pyramid bulge-structure in a first direction is stated more than or equal to the triangular pyramid bulge-structure in the first direction
On length；
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 structure of polarized light, the structure of polarized light include:
Optical compensation films, including incidence surface and light-emitting surface offer on the light-emitting surface multiple recessed with triangular pyramid
Slot, the angle between the side and the incidence surface of the triangular pyramid groove is acute angle；The optical compensation films are negativity list
Light compensation film, the negativity uniaxial compensation film include smectic, and the optical axis of the smectic is perpendicular to institute
State incidence surface；
Protective film is supported, the support protective film is formed on the light-emitting surface of the optical compensation films；Wherein, the support
The first refractive index of protective film is greater than the second refractive index of the optical compensation films；The support protective film connects with the light-emitting surface
The one side of touching is equipped with multiple triangular pyramid bulge-structures matched with the triangular pyramid groove shapes, size；
Light polarizing film is formed on the support protective film.
A kind of display panel, including the aforementioned structure of polarized light.
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 structure of polarized light.
Detailed description of the invention
Fig. 1 is the composition schematic diagram of the structure of polarized light in an embodiment；
Fig. 2 is the structural schematic diagram of the support protective film in Fig. 1；
Fig. 3 is the oblique view of the support protective film in an embodiment；
Fig. 4 is the oblique view of the support protective film in another embodiment；
Fig. 5 is the composition schematic diagram of the display panel in an embodiment；
Fig. 6 is the composition schematic diagram of the display device in an embodiment；
Fig. 7 is the composition schematic diagram of the structure of polarized light in another 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.
Fig. 1 is please referred to, is the composition schematic diagram of the structure of polarized light in an embodiment.Auxiliary is refering to Fig. 2 simultaneously.A kind of polarisation
Structure may include: optical compensation films 10, support protective film 20, light polarizing film 30.Wherein, optical compensation films 10 include incidence surface
And light-emitting surface, incidence surface are the one side for receiving incident light, light enters optical compensation films 10 from the plane of incidence and projects from light-emitting surface,
Multiple grooves 120 with preset shape are offered on light-emitting surface, the angle between the side and incidence surface of groove 120 is α, α
For acute angle, meet 0 ° of 90 ° of < α <.Support protective film 20 is formed on the light-emitting surface of optical compensation films 10；Support protective film 20 with
The one side of light-emitting surface contact is equipped with multiple bulge-structures 220 matched with 120 shape of groove, size.That is optical compensation films 10
With support protective film 20 complete be bonded can be realized by bulge-structure 220 and groove 120.Support protective film 20 that there is first refractive
There is the second refractive index n2, first refractive index n1 to be greater than the second refractive index n2 for rate n1, optical compensation films 10.It is mended when light penetrates optics
It is to enter light substantia compacta from light thinning medium, therefore in optical compensation films 10 and support protective film when repaying the entrance support protective film 20 of film 10
20 contact interface can reflect.In a display device, since most light are vertical incidence into polarizer, i.e., absolutely
Most of light is perpendicular to incidence surface, and this programme is by being arranged the optical compensation films 10 of different refractivity and supporting protective film 20 simultaneously
Bulge-structure 220 is set in the one side that support protective film 20 is contacted with light-emitting surface, vertical incidence light enters from optical compensation films 10
When being incident upon support protective film 20, in conjunction with the surface characteristics of bulge-structure 220, it can reflect, change on the surface of bulge-structure 220
The propagation path for becoming 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
The image quality at visual angle.Light polarizing film 30 is formed on support protective film 20.
Above-described embodiment, by being arranged multiple bulge-structures in support protective film, while according to optical compensation films not
Refraction effect caused by same refractive index can be such that vertical incidence to the incident light of support protective film reflects, to will face
The light energy at angle is assigned to side view angle, and then solves the problems, such as colour cast.Further, since entire structure of polarized light does not use volume
Outer metal routing, so there is no the transmissivity for influencing light, and then the problem of influence image quality.
In one embodiment, please continue to refer to Fig. 1, the face for supporting protective film 20 to contact with optical compensation films 10 is equipped with
Multiple bulge-structures 220.Multiple bulge-structures 220 are triangular prism strip structure, are mutually put down between multiple triangular prism strip structures
Row.The face contact that one side of triangular prism strip structure is contacted with support protective film 20 and optical compensation films 10, support are protected
The contact surface i.e. incidence surface of cuticula 20.It is formed between other two side and the incidence surface for supporting protective film 20 certain
Angle that is to say the α in Fig. 1.Since the angle formed between the side and incidence surface of the groove 120 of optical compensation films 10 is sharp
Angle, so β is acute angle, correspondingly, the angle α formed between the side and incidence surface of bulge-structure 220 is also acute angle, while convex
It plays structure 220 to match with 120 shape of groove, size, so α=β here.Further, the first of β the optional range can be with
For 0 ° < β < 90 °, second optional may range from 15 ° < β < 75 °.The first of α is optional to may range from 0 ° < α < 90 °, and second is optional
It may range from 15 ° < α < 75 °.It can make certain angle is provided between the side and incidence surface of bulge-structure 220
Incident light is easier that refraction effect occurs when passing through side, so that the light energy at positive visual angle more diffuses to side view angle,
Improve the image quality of side view angle.As shown in figure 4, multiple bulge-structures 220 can be on the incidence surface of support protective film 20 and be in
Two-dimensional matrix array distribution.And bulge-structure 220 is triangular pyramid protrusion, it will be understood that when bulge-structure 220 is that triangular pyramid is convex
When rising, cross section identical with triangular prism strip structure can have.The bottom surface of triangular pyramid and support protective film 20
Incidence surface contact, shape is at a certain angle between remaining side and the incidence surface for supporting protective film 20.Due to triangular prism strip
Structure cross section having the same, so, angle here that is to say the α in Fig. 1.Due to the groove 120 of optical compensation films 10
Side and incidence surface between the angle that is formed be acute angle, so β is acute angle, correspondingly, the side of bulge-structure 220 and enter light
The angle α formed between face is also acute angle, while bulge-structure 220 is matched with 120 shape of groove, size, so α here
=β.When bulge-structure 220 is triangular prism strip projected parts structure and is arranged side by side, only reflects, make in one-dimensional square
Two sides of the divergence of beam to the inclined-plane of triangular prism；When bulge-structure 220 is triangular pyramid and multiple triangular pyramids are a burst of in Two-Dimensional Moment
When column, it can be reflected in two-dimensional surface, make divergence of beam to all angles of two-dimensional surface, to make each visual angle can
Preferable image quality is presented.
As shown in connection with fig. 2, when light R0, which vertically penetrates optical compensation films 10, enters support protective film 20, vertical incidence light
Incidence angle at 220 surface of bulge-structure is γ, 0 90 ° of < γ <, therefore light can reflect, refraction angle θ, due to
Light is to enter the support protective film 20 with first refractive index from the optical compensation films 10 (light thinning medium) with the second refractive index
(light substantia compacta), so γ is greater than θ, i.e. light propagation path changes, and light R1 deviates original normally incident direction, to side
Diverging, therefore have more light and inject side, improve the image quality of side view angle.It should be understood that first refractive index n1 with
The difference of second refractive index n2 is bigger, and refraction angle when reflecting is bigger, and the easier light type energy that will face is assigned to greatly
Visual angle.In one embodiment, the value range of first refractive index n1 is 1.0 < n1 < 2.5, the value range of the second refractive index n2
For 1.0 < n1 < 2.5.In one embodiment, if the preferred value range of m=n1-n2, m are 0.01 < m < 2.
As shown in Fig. 2, referring concurrently to Fig. 3.Optical compensation films 10 may include incidence surface and light-emitting surface, light-emitting surface and enter light
Face can be shape, size rectangle all the same, be also possible to other shapes.It is triangular prism strip structure in bulge-structure 220
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, to be perpendicular to the extending direction of triangular prism strip projected parts structure on light-emitting surface
First direction, it is understood that for along the extending direction of X-axis.Triangular prism can be regular triangular prism, may not be regular triangular prism；
The size of multiple triangular prisms can be identical, can not also be identical.Multiple triangular prism bulge-structures 220 are mutually flat on light-emitting surface
Row.As shown in Figure 1, Px be adjacent the distance between triangular prism strip structure, Lx be triangular prism strip structure in a first direction
On length, Px, Lx meet: Px >=Lx.
Similarly, identical as triangular prism protrusion due to can have when bulge-structure 220 is triangular pyramid bulge-structure
Cross section, so, herein can be referring concurrently to Fig. 2 and Fig. 4, adjacent triangular pyramid bulge-structure 220 is in a first direction
Distance is greater than or equal to the length of triangular pyramid bulge-structure 220 in a first direction；Adjacent triangular pyramid bulge-structure 220 is
Distance on two directions is greater than or equal to the length of triangular pyramid bulge-structure 220 in a second direction, wherein since light-emitting surface is
Rectangle, the face that support protective film 20 is contacted with light-emitting surface may be rectangle, using the extending direction of rectangle width as first direction,
It can be appreciated that along the extending direction of X-axis；Using the extending direction of rectangle length as second direction, it is to be understood that for along Y
The extending direction of axis.Triangular prism can be positive triangular pyramid, may not be positive triangular pyramid, the size of multiple triangular pyramids can phase
It together, can not also be identical.It is appreciated that can shape to groove, ruler in the case where not departing from the central principle of the application
Very little, size is changed to adapt to the actual needs of those skilled in the art.As shown in figure 4, Px is adjacent triangular pyramid protrusion
The distance of structure 220 in a first direction；Py is the distance of adjacent triangular pyramid bulge-structure 220 in a second direction；Lx is
The length of triangular pyramid bulge-structure 220 in a first direction；Ly is the length of triangular pyramid bulge-structure 220 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 220, i.e., convex
It plays structure 220 to be distributed in two-dimensional matrix array, when light travels to light substantia compacta from light thinning medium, so that it may make to hang down by interval and protrusion
Straight incident light is dissipated towards side, will further be faced light energy and is 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.
Optical compensation films 10 can be made for the transparent or semitransparent material of light-permeable and have the function of phase compensation
Uniaxial negativity compensation film is filled with liquid crystal in optical compensation films in one embodiment, and liquid crystal is birefringent material, light into
Two light of normal light and unusual light can be reflected into when entering liquid crystal, wherein the refractive index of normal light is normal refractive index, unusual light
Refractive index be abnormal refraction rate, abnormal refraction rate direction is the photoelectricity field direction direction parallel with liquid crystal optic axis, normal refraction
Rate direction is the optical electric field direction vertical with liquid crystal optic axis, and abnormal refraction rate direction is vertical with normal refractive index direction.In this reality
It applies in example, optical compensation films 10 can be negativity single shaft C- compensation film, and the normal refractive index of negativity single shaft C- compensation film is parallel to
The all directions of light-emitting surface.Smectic can be filled inside negativity single shaft C- compensation film, smectic is plate shape
The optical axis of the liquid crystal of shape, disc-like liquid crystal is vertical with incidence surface, the light in the abnormal refraction direction rate nce and disc-like liquid crystal of disc-like liquid crystal
Axis is parallel, and the direction normal refractive index nco of disc-like liquid crystal is perpendicular to the direction abnormal refraction rate nce, the i.e. normal folding of disc-like liquid crystal
The rate nco of penetrating is oriented parallel to incidence surface, and nco > nce；Support protective film 20 that similarly there is abnormal refraction rate and normal refraction
Rate；The normal refractive index for supporting protective film 20 is n, and in the present embodiment, first refractive index is the normal folding for supporting protective film 20
Rate n is penetrated, the second refractive index is the direction of C- compensation film normal refractive index nco, n and the direction of nco each parallel to incidence surface.
Further, the refractive index of optical compensation films 10 can be 1.0-2.5, refractive index i.e. normal refraction here
Rate, i.e. nco (ordinary refractive index).The normal refractive index of protective film 20 is supported to be greater than optical compensation films 10
Normal refractive index.In other words, it is optically thinner medium for the opposite support protective film 20 of optical compensation films 10, supports protective film 20
It is optically denser medium for opposing optical compensation film 10.Specifically, the normal folding between protective film 20 and optical compensation films 10 is supported
Penetrating rate difference range is 0.01-2.Theoretically, support the normal refractive index of protective film 20 relative to the normal of optical compensation films 10
Refractive index difference is bigger, when incident light impinge perpendicularly on support protective film 20 on occur refraction effect when, it is easier will just
The light energy at visual angle is assigned to side view angle.
Light polarizing film 30 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 of negativity single shaft C- compensation film can be made
Brilliant optical axis), the penetrating shaft of incident light polarization direction and light polarizing film by phase compensation film after parallel with the penetrating shaft of light polarizing film
In parallel, therefore light polarizing film can be passed completely through.In the present solution, since negativity single shaft C- compensation film also has the function of phase compensation
Can, expand visual angle in addition to incident light can be made to deflect in interface using negativity single shaft C- compensation film, enhancing side view angle is drawn
Outside matter, phase compensation can also be played the role of.
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 30 chooses current city in the application
Common product on face, penetrating shaft are parallel to 0/180 degree of direction, and absorption axiss are parallel to 90/270 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
Optical compensation films 10 and support protective film 20, optical compensation films 10 and support protective film 20 both can be carried out phase compensation and to light
It is deflected, can also act as protective layer to protect light polarizing film, therefore can be omitted the three of polaroid incident side in polarizer
Cellulose acetate support membrane is conducive to the slimming design of product.It should be noted that optical compensation films 10 and support protective film
200 need to have suitable thickness to realize the protective effect to light polarizing film.
The material of support protective film 20 can include but is not limited to polyethylene terephthalate film, Triafol T
Any one in film or polymethyl methacrylate film.PET (Polyethylene terephthalate, poly- terephthaldehyde
Sour glycol ester film) there is good optical property and weatherability, amorphous PET plastic has good optical transparence.
In addition PET plastic has excellent abrasion performance frictional property and dimensional stability and electrical insulating property.TAC(Triacetyl
Cellulose, Triafol T), mainly for the protection of LCD polarizer.(Polymethyl Methacrylate gathers PMMA
Methyl methacrylate), there is good chemical stability and weatherability.In this application, support protective film 20 can also rise
To the effect of support and protection.Illustratively, the thickness for supporting protective film 20 can be 20 microns -200 microns.
To sum up, in combination with Fig. 1, Fig. 2, with optical compensation films 10 for negativity uniaxial C- compensation film, optical compensation films 10
Groove be V-arrangement strip groove, support protective film 20 bulge-structure be V-arrangement strip projected parts structure (triangular prism) for sketch this
The visual angle of application improves principle: incident light, which enters negativity uniaxial C- compensation film, can be divided into horizontal polarization with vertical polarisation component
Light only focuses on horizontal polarization point since the penetrating shaft of light polarizing film used in this application is parallel to 0/180 degree of direction here
The medium interface that the light of amount passes through.The light of horizontal polarisation component is in the corresponding equivalent refractive index of negativity uniaxial C- compensation film
The light of nco (ordinary refractive index, normal refractive index), horizontal polarisation component are mended by negativity uniaxial C-
It repays after film by supporting and protecting the support protective film 20 of light polarizing film 30 (corresponding to the support for supporting and protecting 30 function of light polarizing film
The refractive index of protective film be n), therefore the light of the horizontal polarization two media contact faces (i.e. V-arrangement strip projected parts in Fig. 2) occur
Enter the behavior of optically denser medium (n > nco) from optically thinner medium, between the bulge-structure 220 and incidence surface of cooperation support protective film 20
The acute angle of formation generates refraction effect, forms the optical phenomena that positive visual angle light type energy distributes big visual angle.Thus by positive visual angle
Light energy is assigned to side view angle, improves colour cast problem.
Also provide a kind of structure of polarized light, structure of polarized light may include: optical compensation films, including incidence surface and light-emitting surface, out
Multiple grooves with triangular pyramid are offered in smooth surface, the angle between the side of triangular pyramid groove and the incidence surface is
Acute angle；Optical compensation films are negativity monochromatic light compensation film, and negativity uniaxial compensation film includes smectic, smectic
Optical axis perpendicular to the incidence surface；Protective film is supported, support protective film is formed on the light-emitting surface of optical compensation films；Wherein,
The first refractive index of protective film is supported to be greater than the second refractive index of optical compensation films；The one side that support protective film is contacted with light-emitting surface
Equipped with multiple triangular pyramid bulge-structures matched with triangular pyramid groove shapes, size；Light polarizing film is formed in the support
On protective film.
Above-described embodiment, by being arranged the bulge-structures of multiple triangular pyramids in support protective film, while according to light
Refraction effect caused by the different refractive index of compensation film is learned, vertical incidence to the incident light of support protective film can be made to reflect,
To which the light energy at positive visual angle is assigned to side view angle, and then solve the problems, such as colour cast.Further, due to entire structure of polarized light
Additional metal routing is not used, so there is no the transmissivity for influencing light, and then the problem of influence image quality.
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.The application display panel with
It is illustrated for LCD display panel.As shown in figure 5, the display panel includes upper polarizer 1000, lower polarizer 2000, on
Substrate 3000, lower substrate 4000 and the liquid crystal layer 6000 being located between upper substrate 3000 and lower substrate 4000, light is aobvious
Show incident sequence in panel are as follows: it is introduced into lower polarizer 2000, then passes through lower substrate 4000, secondly passes through liquid crystal layer 6000,
Enter to inject upper substrate 3000 after the rotation of liquid crystal layer 6000, finally enters polarizer 1000.The polarizer 2000 is wherein descended to be
The structure of polarized light of aforementioned structure of polarized light embodiment introduction.It is appreciated that upper polarizer 1000 or aforementioned structure of polarized light are real
Apply the structure of polarized light of example introduction.It is illustrated for polarizer 2000 herein below.Lower polarizer 2000 may include that optics is mended
Film 10 is repaid, optical compensation films 10 have the second refractive index, and optical compensation films 10 include incidence surface and light-emitting surface, and the light-emitting surface
On offer multiple grooves 120 with preset shape, the angle between the side and incidence surface of groove 120 is acute angle；May be used also
To include support protective film 20, protective film 20 is supported to be formed on the light-emitting surface of optical compensation films 10；Wherein, protective film 20 is supported
With first refractive index；The first refractive index of protective film 20 is supported to be greater than the second refractive index of optical compensation films 10；Support protection
The one side that film 20 is contacted with light-emitting surface is equipped with multiple bulge-structures 220 matched with 120 shape of groove, size.It can also wrap
Light polarizing film 30 is included, is formed on support protective film 20.Further include the second compensation film 40, is formed in light polarizing film 30.Light is under
Polarizer 2 is incident to the optical compensation films 10 in lower polarizer 2, and penetrates optical compensation films 10 and enter support protective film 20, light
Phase compensation can be carried out to incident ray by learning compensation film 10.Since light enters light substantia compacta from light thinning medium, and incident ray exists
At least partly the incidence angle of contact surface is not equal to 90 °, therefore refraction effect can occur, and makes vertical incidence light to side view angular deflection,
Positive visual angle energy is assigned to side view angle, improves the image quality at side view angle.Wherein, the specific structure of structure of polarized light is in detail above
It introduces, details are not described herein again.
Fig. 6 is please referred to, is the composition schematic diagram of the backlight module in an embodiment.The application, which is also disclosed, shows altogether dress
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.For backlight module 5 for providing incident light R0, incident light R0 concentrates on the model with vertical direction in low-angle
It is incident to display panel 1 in enclosing, which is smaller than 30 °, and most of light that display panel 1 receives is vertical incidence light,
Since there are the incidence surfaces of optical compensation films 10 and support protective film 20 and support protective film 20 to be equipped with multiple tools in display panel 1
There is the bulge-structure 220 of preset shape, vertical incidence light can be carried out by deflection generation by refraction on 220 surface of bulge-structure
Emergent light R1 improves the image quality at side view angle so that positive visual angle energy will be assigned to side view angle.The structure of display panel and aobvious
Show that the structure of the polarizer in panel is being described above, details are not described herein again.Wherein, backlight module 5 may include side entering type
LED light source 51, reflector plate 52, light guide plate 53.The upper and lower surface of light guide plate 53 is equipped with strip V-groove, 53 lower surface V of light guide plate
The side wall of type groove is parallel with side entering type light source 51, and the V-groove of 53 upper surface of light guide plate and the V-groove of lower surface are mutually perpendicular to.
Referring to Fig. 7, in one embodiment, structure of polarized light can also include pressure-sensitive adhesive layer 50 and the second compensation film 40, the
Two compensation films 40 are arranged in light polarizing film 30, and pressure sensitive adhesive 50 is set in the second compensation film, and pressure sensitive adhesive 50 is mainly used for polarisation
Structure is bonded with other assemblies.Second compensation film 40 can be the optical diaphragm for having phase compensation function.
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 structure of polarized light, which is characterized in that the structure of polarized light includes:
Optical compensation films, including incidence surface and light-emitting surface offer multiple grooves with preset shape, institute on the light-emitting surface
Stating the angle between the side of groove and the incidence surface is acute angle；
Protective film is supported, the support protective film is formed on the light-emitting surface of the optical compensation films；Wherein, the support protection
The first refractive index of film is greater than the second refractive index of the optical compensation films；The support protective film is contacted with the light-emitting surface
One side be equipped with multiple bulge-structures matched with the groove shapes, size；
Light polarizing film is formed on the support protective film.
2. structure of polarized light according to claim 1, which is characterized in that the optical compensation films are the compensation of uniaxial negativity
Film, second refractive index are the normal refractive index of the uniaxial negativity compensation film, and the uniaxial negativity compensation film includes
Smectic, the optical axis of the smectic is perpendicular to the incidence surface.
3. structure of polarized light according to claim 2, which is characterized in that the light polarizing film has penetrating shaft, and polarization direction is flat
Row light polarizing film described in the light-transmissive of the penetrating shaft, the optical axis and the penetrating shaft of the negativity uniaxial compensation film hang down
Directly.
4. structure of polarized light according to claim 1, which is characterized in that the bulge-structure is V-arrangement strip projected parts structure, more
It is parallel to each other between a V-arrangement strip projected parts structure.
5. structure of polarized light according to claim 1, which is characterized in that the bulge-structure is triangular pyramid bulge-structure, more
A triangular pyramid bulge-structure on the light-emitting surface be in two-dimensional matrix array be distributed.
6. structure of polarized light according to claim 4, which is characterized in that the adjacent bulge-structure is in a first direction
Distance is greater than or equal to the length of the bulge-structure in said first direction；Wherein, on the light-emitting surface perpendicular to institute
The direction for stating the extending direction of V-arrangement strip projected parts structure is first direction.
7. structure of polarized light according to claim 5, which is characterized in that the support protective film was contacted with the light-emitting surface
Face is rectangle, and the distance of the adjacent triangular pyramid bulge-structure in a first direction is greater than or equal to the triangular pyramid protrusion knot
The length of 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 structure of polarized light, which is characterized in that the structure of polarized light includes:
Optical compensation films, including incidence surface and light-emitting surface offer multiple grooves with triangular pyramid, institute on the light-emitting surface
Stating the angle between the side of triangular pyramid groove and the incidence surface is acute angle；The optical compensation films are the compensation of negativity monochromatic light
Film, the negativity uniaxial compensation film include smectic, the optical axis of the smectic perpendicular to it is described enter light
Face；
Protective film is supported, the support protective film is formed on the light-emitting surface of the optical compensation films；Wherein, the support protection
The first refractive index of film is greater than the second refractive index of the optical compensation films；What the support protective film was contacted with the light-emitting surface
It is equipped with multiple triangular pyramid bulge-structures matched with the triangular pyramid groove shapes, size on one side；
Light polarizing film is formed on the support protective film.
9. a kind of display panel, which is characterized in that including such as described in any item structure of polarized light of claim 1-8.
10. 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 structure of polarized light of claim 1-8.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811163416.XA CN109143448A (en) | 2018-09-30 | 2018-09-30 | Structure of polarized light, display panel and display device |
| PCT/CN2018/119513 WO2020062578A1 (en) | 2018-09-30 | 2018-12-06 | Polarizer structure and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811163416.XA CN109143448A (en) | 2018-09-30 | 2018-09-30 | Structure of polarized light, display panel and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109143448A true CN109143448A (en) | 2019-01-04 |
Family
ID=64810711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811163416.XA Withdrawn CN109143448A (en) | 2018-09-30 | 2018-09-30 | Structure of polarized light, display panel and display device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109143448A (en) |
| WO (1) | WO2020062578A1 (en) |
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| CN109597238A (en) * | 2019-01-30 | 2019-04-09 | 惠科股份有限公司 | Optical film layer and display device |
| CN109597239A (en) * | 2019-01-30 | 2019-04-09 | 惠科股份有限公司 | Optical film layer and display device |
| CN109633986A (en) * | 2019-01-30 | 2019-04-16 | 惠科股份有限公司 | Optical film layer and display device |
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Also Published As
| Publication number | Publication date |
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| WO2020062578A1 (en) | 2020-04-02 |
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