CN109031501A - 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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- CN109031501A CN109031501A CN201811161965.3A CN201811161965A CN109031501A CN 109031501 A CN109031501 A CN 109031501A CN 201811161965 A CN201811161965 A CN 201811161965A CN 109031501 A CN109031501 A CN 109031501A
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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
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3016—Polarising elements involving passive liquid crystal elements
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
Abstract
The present invention relates to a kind of structure of polarized light, including light polarizing film, light polarizing film includes incidence surface and the light-emitting surface opposite with incidence surface；First optical compensation films, on the light-emitting surface of light polarizing film, the first optical compensation films have first refractive index, and the first optical compensation films are formed with multiple grooves away from light polarizing film light-emitting surface on one side；Second optical compensation films, it is formed with multiple bulge-structures to match with groove shapes, size, the width of bulge-structure be less than or close to incident light wavelength, second optical compensation films fit on the first optical compensation films, and bulge-structure is contained in groove, second optical compensation films have the second refractive index, and first refractive index is greater than the second refractive index.By the way that the optical compensation films of different refractivity are arranged, vertical incidence light can be made to deflect, positive visual angle light energy is assigned to side view angle, improves side view angle image quality.The invention further relates to another structure of polarized light, display panel and display devices.
Description
Technical field
The present invention relates to display fields, 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 because having many advantages, such as that high image quality, power saving, fuselage is thin is widely used in
In this electronic product, wherein the quality of image quality is to influence the most important factor of consumer experience.Display device is generally by carrying on the back
Optical mode group and the display panel being placed on backlight module are constituted, and backlight module provides incident light for display panel, and the incident light is logical
Be often concentrate vertical incidence to display panel, therefore when positive apparent direction watches display screen, preferable display image quality can be obtained, but
It is when side-looking direction watches display screen, image quality is poor, and colour cast is than more serious, so that the visual angle normally shown is smaller.Currently,
It uses in VA liquid crystal (Vertical Alignment liquid crystal, vertical arrangement) display by the son in optical filter
Pixel is again divided into the means of multiple sub-pixels to improve the image quality at side view angle, to expand display view angle.But this side
Method needs more TFT (Thin Film Transistor, thin film transistor (TFT)) elements to drive sub-pixel, certainly will be so increasing
The metal routing for adding panel itself 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 brightness, then need improve backlight module performance, make its generate more high brightness incident light, so again will increase backlight at
This.
Summary of the invention
Based on this, it is necessary to which the problem small for display device display view angle, side view image quality is poor provides a kind of polarisation knot
Structure display panel and display device.
A kind of structure of polarized light, comprising:
Light polarizing film, the light polarizing film include incidence surface and the light-emitting surface opposite with the incidence surface；
First optical compensation films, on the light-emitting surface of the light polarizing film, first optical compensation films have the first folding
Rate is penetrated, first optical compensation films are formed with multiple grooves away from the light polarizing film light-emitting surface on one side；
Second optical compensation films are formed with multiple bulge-structures to match with the groove shapes, size, the protrusion
The width of structure be less than or close to incident light wavelength, second optical compensation films fit in first optical compensation films
On, and the bulge-structure is contained in the groove, second optical compensation films have the second refractive index, first folding
Rate is penetrated greater than second refractive index.
Since in a display device, most of light is vertical incidence to display panel, and display panel includes structure of polarized light,
If each membrane surface in structure of polarized light is smooth and is mutually perpendicular to vertical incidence light, most of incident light vertical incidence to polarisation
Still vertically projected when structure so that most of light energy concentrates on positive visual angle, cause the positive visual angle image quality of display panel preferably and
Side view angle image quality is poor.And in the present solution, due to being equipped with the first optical compensation films and the second optical compensation films, and first refractive index
When greater than the second refractive index, i.e. light vertical incidence to display panel, penetrates the first optical compensation films and be incident to the second optics benefit
The process for repaying film is the process for entering light thinning medium from light substantia compacta.Meanwhile it being connect in the second optical compensation films and the first optical compensation films
Touching is formed with multiple bulge-structures on one side, the width of each bulge-structure be less than or close to incident light wavelength, when incident light from
When light substantia compacta enters light thinning medium, which is equivalent to a grating, and diffraction can be occurred by being incident to the light at bulge-structure, from
And change the propagation path of light, so that vertical incidence light is diffused to side view angle, improves the image quality at side view angle.
The width of the bulge-structure is greater than or equal to 300nm in one of the embodiments, and is less than or equal to
1000nm。
The bulge-structure is strip protrusion in one of the embodiments, and the strip bulge-structure is side by side
Setting.
The bulge-structure is arranged in two-dimensional matrix array in one of the embodiments, and the length of the bulge-structure
Degree and width be respectively less than or close to incident light wavelength.
The bulge-structure is cuboid bulge-structure in one of the embodiments,.
The light polarizing film has penetrating shaft in one of the embodiments, and first optical compensation films are uniaxial A-
The optical axis of compensation film, the uniaxial A- compensation film is parallel with the penetrating shaft, and the first refractive index is the A- compensation film
Abnormal refraction rate, second optical compensation films be uniaxial C- compensation film, the optical axis of the uniaxial C- compensation film and institute
State that penetrating shaft is vertical, second refractive index is the normal refractive index of the C- compensation film.
The light polarizing film has penetrating shaft in one of the embodiments, and first optical compensation films are the first monochromatic light
Axis A- compensation film, the second optical compensation films of institute are the second uniaxial A- compensation film, the optical axis of the first uniaxial A- compensation film
It is parallel with the penetrating shaft, the first refractive index be the first uniaxial A- compensation film abnormal refraction rate, described second
The optical axis of uniaxial A- compensation film is vertical with the penetrating shaft, and second refractive index is the second uniaxial A- compensation film
Normal refractive index.
In one of the embodiments, doped with the resin particle of anti-hyun function in second optical compensation films.
A kind of structure of polarized light, comprising:
Light polarizing film has penetrating shaft, and the light polarizing film includes incidence surface and the light-emitting surface opposite with the incidence surface；
First optical compensation films, first optical compensation films are the first uniaxial A- compensation film, are set to the light polarizing film
Light-emitting surface on, the uniaxial A- compensation film have abnormal refraction rate, the optical axis of the first uniaxial A- compensation film and institute
State that penetrating shaft is parallel, the first uniaxial A- compensation film is formed with multiple grooves away from the light polarizing film light-emitting surface on one side；
Second optical compensation films, second optical compensation films are uniaxial C- compensation film, the uniaxial C- compensation film
Multiple bulge-structures to match with the groove shapes, size are formed with, the bulge-structure is arranged in two-dimensional matrix array,
The length and width of the bulge-structure be respectively less than or close to incident light wavelength, the uniaxial C- compensation film fits in described
In first uniaxial A- compensation film, and the bulge-structure is contained in the groove, and the uniaxial C- compensation film has just
The optical axis of normal refractive index, the uniaxial C- compensation film is vertical with the penetrating shaft, the unusual folding of the uniaxial A- compensation film
Penetrate the normal refractive index that rate is greater than the uniaxial C- compensation film.
Above-mentioned structure of polarized light, can make most of vertical incidence to display panel light in two-dimensional surface to side view
Positive visual angle energy is assigned to side view angle, to improve the image quality at side view angle by angular deflection.
A kind of display panel, comprising:
First substrate, the first substrate include incident side and light emission side；
The second substrate, positioned at the first substrate light emission side and be oppositely arranged with the first substrate；
First polarizer is formed in the side for deviating from the second substrate on the first substrate；
Second polarizer is formed in the side for deviating from the first substrate in the second substrate；
First polarizer includes structure of polarized light described above；And/or
Second polarizer includes structure of polarized light described above.
Above-mentioned display panel includes structure of polarized light, using structure of polarized light, most of vertical incidence can be made to display surface
The light of plate is assigned to side view angle to side view angular deflection, by positive visual angle energy, to improve the image quality at side view angle.
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 is above-mentioned display panel.
The display panel of above-mentioned display device includes structure of polarized light, and backlight module vertical incidence can be made to display panel
Light to side view angular deflection, positive visual angle energy is assigned to side view angle, to improve the image quality at side view angle.
Detailed description of the invention
Fig. 1 is structure of polarized light explosive view；
Fig. 2 is diffraction schematic diagram of the structure of polarized light to incident light；
Fig. 3 A is the three-dimensional structure diagram of the second optical compensation films in an embodiment；
Fig. 3 B is the stereoscopic schematic diagram of the second optical compensation films in another embodiment；
Fig. 4 is structure of polarized light partial sectional view in an embodiment；
Fig. 5 is structure of polarized light partial sectional view in another embodiment；
Fig. 6 is display panel structure schematic diagram in an embodiment；
Fig. 7 is the first polarized light plate structure schematic diagram in an embodiment；
Fig. 8 is the second polarized light plate structure schematic diagram in an embodiment；
Fig. 9 is display device structure schematic diagram in an embodiment.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give preferred embodiment of the invention.But the invention can be realized in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is make it is more thorough and comprehensive to the disclosure.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
In the description of the present invention, it is to be understood that, term " on ", "lower", "vertical", "horizontal", "inner", "outside" etc.
The orientation or positional relationship of instruction is method based on the figure or positional relationship, is merely for convenience of the description present invention and letter
Change description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation construct and
Operation, therefore be not considered as limiting the invention.
As shown in Figure 1, structure of polarized light includes the successively folded light polarizing film 100 set, the first optical compensation films 200 and the second optics
Compensation film 300, wherein light polarizing film 100 includes incidence surface 100A and light-emitting surface 100B, and incidence surface is the one side for receiving incident light,
Light forms linearly polarized light after the polarization manipulation that incidence surface enters the progress light of light polarizing film 100 and projects from light-emitting surface.One
In embodiment, light polarizing film 100 is polyvinyl alcohol film, and polyvinyl alcohol film has high transparency, high ductibility energy and has to light
Polarization.First optical compensation films 200 are folded to be located on the light-emitting surface of light polarizing film, and the first optical compensation films are deviating from light polarizing film
Light-emitting surface 100B's is formed with multiple grooves 201 on one side.Second optical compensation films are formed with multiple and 201 shape of groove, size
The bulge-structure 301 to match, bulge-structure 301 can be embedded just below in groove 201, and the width of bulge-structure 301 is less than or connects
The wavelength of nearly incident light, the second optical compensation films 300 fit on the first optical compensation films 200, and bulge-structure 301 holds completely
It is contained in groove 201, is i.e. fits closely gapless between the first optical compensation films 200 and the second optical compensation films 300.First light
Learning compensation film has first refractive index n1, and there is the second optical compensation films the second refractive index n2, first refractive index n1 to be greater than second
Refractive index n2.It is to enter light from light substantia compacta to dredge when light, which penetrates the first optical compensation films 200, enters the second optical compensation films 300
The process of matter, but due to the width of bulge-structure be less than or close to incident light wavelength, when incident light propagation to the bulge-structure
When at 301, which is equivalent to a grating, and diffraction can occur at the bulge-structure for light.In a display device, due to
Most light are vertical incidence into polarizer, i.e., most light are perpendicular to incidence surface, and this programme is by being arranged not
With the first optical compensation films 200 of refractive index and the second optical compensation films 300 and in the second optical compensation films 300 and the first optics
The contact surface of compensation film 200 forms bulge-structure 301, forms grating by bulge-structure, and incident light is from the first optical compensation films
When 200 vertical incidence to the second optical compensation films 300, diffraction can occur at bulge-structure, change the propagation of vertical incidence light
Path makes light deflect, so that positive visual angle light type energy be made to be assigned to big visual angle, improves the image quality at side view angle.
As shown in connection with fig. 2, the width of bulge-structure is X, and the value range of X can be 300nm≤X≤1000nm, works as light
When vertically penetrating the first optical compensation films 200 the second optical compensation films 300 of entrance, diffraction, i.e. light occur at bulge-structure 301
Line propagation path changes, and light deviates original normally incident direction, dissipates to side, therefore has more light and inject
The image quality of side view angle is improved in side.It should be understood that first refractive index n1 and the difference of the second refractive index n2 are bigger, diffraction
Phenomenon is more obvious, and the easier light type energy that will face is assigned to big visual angle.In one embodiment, the value model of first refractive index n1
It encloses for 1.0 < n1 < 2.5, the value range of the second refractive index n2 is 1.0 < n2 < 2.5.In one embodiment, if m=n1-
The value range of n2, m can be 0.01 < m < 1.5.
As shown in Figure 3A, multiple bulge-structures 301 are formed on the second optical compensation films 300, each bulge-structure 301 is length
Strip bulge, each strip bulge-structure 301 can be arranged side by side, the width of each strip protrusion be less than or close to incident light wave
It is long.As shown in Figure 3B, bulge-structure 301 can also be arranged in two-dimensional matrix array, the width (X-direction) and length of each bulge-structure
(Y-direction) be respectively less than or close to incident light wavelength.Since in a display device, the light that backlight module generates is largely collection
Middle vertical incidence is to display panel, if the surfacing of each optical thin film of structure of polarized light and being mutually perpendicular to vertical incidence light, hangs down
Straight incident light still vertically projects when will not change its direction of propagation, i.e. light vertical incidence when penetrating polarizer, causes light
Positive angle is concentrated on, so that the display image quality of positive apparent direction is preferable, and side view angle is since light is weaker, the picture of side view angle
Matter is poor.In the present solution, due to being equipped with multiple bulge-structures 301, bulge-structure 301 can make the generation of vertical incidence light spread out
It penetrates, light deviates original normally incident direction, dissipates, therefore have more light and inject side to side, improves side view angle
The image quality of degree.When bulge-structure is strip protrusion and is arranged side by side, diffraction only occurs in one-dimensional square (X-direction), makes light
Line diffuses to the two sides of bulge-structure；When bulge-structure is arranged in two-dimensional rectangle array, due to the length and width of bulge-structure
Degree be respectively less than or close to incident light wavelength, diffraction can occur in the two-dimensional surface (X-direction and Y-direction).In some embodiments
In, bulge-structure 301 is cuboid protrusion, and in other examples, bulge-structure 301 can also be the protrusion of other forms,
The size of bulge-structure can make incident light that diffraction occur.
In one embodiment, bulge-structure is in periodic arrangement, i.e., by the diffraction grating of bulge-structure building in periodically
Arrangement, is conducive to be modulated light wave.In one embodiment, the center spacing of adjacent protrusion structure is less than or equal to 10 μm,
It is less than the opening width of general pixel, that is, meets each pixel openings and be corresponding at least one bulge-structure to the pixel light
It is deflected.
Light polarizing film 100 has absorption axiss and penetrating shaft, and the direction of an electric field polarization luminous energy parallel with penetrating shaft passes through light polarizing film.
In the present solution, the transparent or semitransparent material that optical compensation films should be light-permeable is made and has the function of optical compensation, light
Learn compensation concretely phase compensation.In one embodiment, liquid crystal is filled in optical compensation films, liquid crystal is birefringent material,
In general, light can reflect into two light of normal light and unusual light when entering liquid crystal, wherein the refractive index of normal light is normal folding
Rate is penetrated, the refractive index of unusual light is abnormal refraction rate, and abnormal refraction direction is the photoelectricity field direction direction parallel with liquid crystal optic axis,
Normal refraction direction is the optical electric field direction vertical with liquid crystal optic axis, and abnormal refraction direction is vertical with normal refraction direction.At this
In embodiment, as shown in figure 4, the first optical compensation films 200 are the first uniaxial A- compensation film, in the first uniaxial A- compensation film
Nematic liquid crystal 202 can be filled in portion, and nematic liquid crystal is the rodlike type liquid crystal of strip, the optical axis and incidence surface of nematic liquid crystal 202
Penetrating shaft that is parallel and being parallel to polarizing coating, the abnormal refraction direction of nematic liquid crystal are photoelectricity field direction and nematic liquid crystal
The photoelectricity field direction in the parallel direction of optical axis, i.e. 202 abnormal refraction of nematic liquid crystal is parallel with the penetrating shaft of polarizing coating, corresponding
Abnormal refraction rate is n1e；Second optical compensation films 300 are uniaxial C- compensation film, and disk like can be filled in uniaxial C- compensation film
Liquid crystal 302, for the optical axis of disc-like liquid crystal perpendicular to incidence surface, the normal refraction direction of disc-like liquid crystal is photoelectricity field direction and disk like liquid
The vertical all directions of brilliant optical axis, i.e. the photoelectricity field direction of the normal refraction of disc-like liquid crystal can be each side parallel with incidence surface
To corresponding normal refractive index is n2o.In the present embodiment, first refractive index is the abnormal refraction rate n1 of A- compensation filme, second
Refractive index is C- compensation film normal refractive index n2o.Light becomes linearly polarized light after the polarization manipulation of light polarizing film, the linear polarization
The direction of an electric field of light is parallel with penetrating shaft, by the first optical compensation films, due to the direction of an electric field and the first optics of linearly polarized light
The optical axis of compensation film is parallel, therefore abnormal refraction only occurs in the first optical compensation films, and first refractive index chooses the first optics
Then the abnormal refraction rate of compensation film passes through the second optical compensation films, due to the linearly polarized light after the first optical compensation films
Direction of an electric field it is still parallel with the penetrating shaft of polarizing coating, it is vertical with the optical axis of the second optical compensation films, therefore in the second optics
Normal refraction only occurs in compensation film, the second refractive index chooses the normal refractive index of the second optical compensation films.Since light passes through
The phenomenon that will appear phase delay after processing, in the present solution, utilizing uniaxial A- compensation film and uniaxial C- compensation film
Refractive index is different and while so that vertical incidence light is deflected, uniaxial A- compensation film is also constituted with uniaxial C- compensation film
Double optical axis phase compensation films can carry out phase compensation to light, avoid influence of the phase delay to image quality.
In another embodiment, as shown in figure 5, the first optical compensation films are the first uniaxial A- compensation film, the first monochromatic light
Nematic liquid crystal 202 can be filled inside axis A- compensation film, the optical axis of nematic liquid crystal 202 is parallel and with polarizing coating with incidence surface
Penetrating shaft is parallel, and the abnormal refraction direction of nematic liquid crystal 202 is that photoelectricity field direction is parallel with the optical axis of nematic liquid crystal 202
The photoelectricity field direction in direction, i.e. 202 abnormal refraction of nematic liquid crystal is parallel with the penetrating shaft of polarizing coating, corresponding abnormal refraction rate
For n1e；Second optical compensation films 300 are the second uniaxial A- compensation film, and nematic can be filled inside the second uniaxial A- compensation film
Phase liquid crystal 303, and the optical axis of nematic liquid crystal 303 is vertical with penetrating shaft, the normal refraction direction of nematic liquid crystal 303 is photoelectricity
The field direction direction vertical with the optical axis of nematic liquid crystal 303, i.e. the photoelectricity field direction of 303 normal refraction of nematic liquid crystal and partially
The penetrating shaft of vibrating diaphragm is parallel, and corresponding normal refractive index is n1o.And the abnormal refraction rate of uniaxial A- compensation film is greater than it normally
Refractive index, i.e. n1e>n1o.Light enters the process of the second uniaxial compensation film from the first uniaxial compensation film, be light substantia compacta into
Enter the process of light thinning medium.
In one embodiment, it is additionally provided with support membrane between the first optical compensation films 200 and light polarizing film 100, support membrane can
For Triafol T (TAC) support membrane, it can also be polyethylene terephthalate (PET) support membrane, can also be poly- methyl
Methyl acrylate (PMMA) support membrane.In structure of polarized light, usually using polyvinyl alcohol as light polarizing film, and polyvinyl alcohol has
Extremely strong hydrophily is arranged support membrane, can protect the physical characteristic of light polarizing film.In another embodiment, the first optical compensation films
200 are mounted directly on the light-emitting surface of light polarizing film 100, i.e., are not provided with support membrane between the first optical compensation films and light polarizing film, by
The first optical compensation films and the second optical compensation films are equipped in the side in light polarizing film, the first optical compensation films and the second optics are mended
Light can be deflected by repaying film, can also act as protective layer to protect light polarizing film, therefore can be omitted partially in polarizer
The support membrane of light film light emission side is conducive to the slimming design of product.It should be noted that the first optical compensation films and the second light
Suitable thickness need to be had to realize the protective effect to light polarizing film by learning compensation film.
Structure of polarized light is particularly located in polarizer, is the core component of polarizer, polarizer is especially by structure of polarized light pair
Light carries out polarization manipulation.And polarizer is integrated in display panel, the polarizer for showing picture side positioned at display panel is
Second polarizer, the polarizer positioned at display panel away from the other side of display picture side are the first polarizer, and light is incident
When to display panel, first passes through after the polarization manipulation of the first polarizer using the second polarizer and project.In one embodiment,
Above-mentioned structure of polarized light can be located in second polarizer, and the tree of anti-hyun function can be doped in the second optical compensation films therein
Ester particle can reduce display panel light reflex in the case where not increasing polarisation plate thickness, promote user experience.
The invention also discloses another structure of polarized light, and in conjunction with shown in Fig. 1, Fig. 3 B and Fig. 4, which includes successively
Folded light polarizing film, the first uniaxial A- compensation film and the uniaxial C- compensation film set；Wherein, light polarizing film has penetrating shaft, light polarizing film
Including incidence surface and light-emitting surface；First uniaxial A- compensation film is folded to be located on the light-emitting surface of light polarizing film, the first uniaxial A- compensation
Film has abnormal refraction rate, and the optical axis of the first uniaxial A- compensation film is parallel with penetrating shaft, and the first uniaxial A- compensation film is being carried on the back
It is formed with multiple grooves on one side from light polarizing film light-emitting surface；Uniaxial C- compensation film is formed with multiple with groove shapes, size phase
Matched bulge-structure, bulge-structure are arranged in two-dimensional matrix array, and bulge-structure can be embedded just below in groove, bulge-structure
Width be less than or close to incident light wavelength, uniaxial C- compensation film have normal refractive index, the optical axis of uniaxial C- compensation film
It is vertical with penetrating shaft；The abnormal refraction rate of uniaxial A- compensation film is greater than the normal refractive index of uniaxial C- compensation film.
Incident light forms linearly polarized light after light polarizing film, and the photoelectricity field direction of linearly polarized light and the penetrating shaft of light polarizing film are flat
Row.After linearly polarized light enters the first uniaxial A- compensation film, since the optical axis of the first uniaxial A compensation film is parallel with penetrating shaft,
Linearly polarized light enters the first uniaxial A- compensation film and abnormal refraction only occurs, and corresponding refractive index is the anti-of uniaxial A- compensation film
Normal refractive index.Linearly polarized light enters uniaxial C- compensation film after penetrating the first uniaxial A- compensation film, since uniaxial C- is compensated
The optical axis of film is vertical with penetrating shaft, and linearly polarized light enters uniaxial C- compensation film and normal refraction only occurs, and corresponding refractive index is
The normal refractive index of uniaxial C- compensation film.Since the abnormal refraction rate of uniaxial A- compensation film is greater than uniaxial C- compensation film
Normal refractive index is to enter light thinning medium from light substantia compacta when light, which penetrates uniaxial A- compensation film, enters uniaxial C- compensation film
Process, but due to the width of bulge-structure be less than or close to incident light wavelength, when at incident light propagation to the bulge-structure,
The bulge-structure is equivalent to a grating, and diffraction can occur at the bulge-structure for light, to change the propagation of vertical incidence light
Path, light deflect, and positive visual angle light type energy is made to be assigned to big visual angle, improve the image quality at side view angle.In the present solution, by
It is arranged in bulge-structure in two-dimensional matrix array, so that diffraction occurs for all angles of the light in two-dimensional surface, so that two-dimentional
The image quality at each side view angle in plane gets a promotion.
Invention additionally discloses a kind of display panels, including first substrate, the second substrate, the first polarizer and the second polarisation
Plate, wherein first substrate includes incident side and light emission side, the second substrate be located at the light emission side of first substrate and with first substrate phase
To setting, the first polarizer is formed in the side for deviating from the second substrate on first substrate, and the second polarizer is formed in the second substrate
The upper side away from first substrate, the first polarizer and/or the second polarizer include structure of polarized light, and structure of polarized light is detailed above
Thin to introduce, details are not described herein.
Above-mentioned display panel, light successively pass through the first polarizer, first substrate, the second substrate and the second polarizer, most
After show picture.Due to including structure of polarized light in polarizer, at structure of polarized light, refraction effect can occur for light, make vertically to enter
Light is penetrated to side view angular deflection, positive visual angle energy is assigned to side view angle, improves the image quality at side view angle.
In one embodiment, as shown in fig. 6, display panel can be liquid crystal display panel, which includes the
Two polarizers 10, the first polarizer 30, support the second polarizer the second substrate, support the first polarizer first substrate and
The liquid crystal being folded among first substrate and the second substrate, wherein first substrate, the second substrate and be folded in first substrate and
Liquid crystal among two substrates constitutes liquid crystal layer 20.Incident light becomes linearly polarized light after the first polarizer, and liquid crystal layer 20 can be turned round
The polarization direction for turning linearly polarized light passes through linearly polarized light from the second polarizer, to show picture on a display panel.
Above-mentioned structure of polarized light can be located in the second polarizer, may be alternatively located in the first polarizer.In one embodiment, as schemed
Shown in 7, when structure of polarized light is located at the first polarizer, the first polarizer is in addition to comprising above-mentioned structure of polarized light, also comprising fitting in
The support membrane 500 of light polarizing film incidence surface and the pressure-sensitive adhesive layer 400 being stacked on the second optical compensation films, the first polarizer can lead to
It crosses pressure-sensitive adhesive layer 400 to be pasted on first substrate, i.e. the first polarizer may include the successively folded branch set from light to light direction is entered
Support film 500, light polarizing film 100, the first optical compensation films 200, the second optical compensation films 300 and pressure-sensitive adhesive layer 400, wherein the
One optical compensation films 200 can be the first uniaxial A- compensation film, and the second optical compensation films 300 can be the second uniaxial A- compensation film
Or uniaxial C- compensation film, different from the refractive index of the second optical compensation films using the first optical compensation films and make vertical incidence
While light deflects, the first optical compensation films and the second optical compensation films also constitute double optical axis phase compensation films, can be with
Phase compensation is carried out to light, avoids influence of the phase delay to image quality.In another embodiment, as shown in figure 8, working as polarisation knot
When structure is located in the second polarizer, the second polarizer may also include to have and enter light in light polarizing film in addition to including above-mentioned structure of polarized light
The folded phase compensation film 600 and pressure-sensitive adhesive layer 700 set in face, wherein phase compensation film 600 is located at pressure-sensitive adhesive layer 700 and light polarizing film
Between 100, i.e. the second polarizer may include successively folded pressure-sensitive adhesive layer 700, the phase compensation film set from light to light direction is entered
600, light polarizing film 100, the first optical compensation films 200 and the second optical compensation films 300.
In other embodiments, display panel may be Organic Light Emitting Diode (Organic Light-Emitting
Diode, OLED) display panel, light emitting diode with quantum dots (Quantum Dot Light Emitting Diodes, QLED)
Display panel or curved face display panel, and other display panels comprising above-mentioned structure of polarized light.
Invention additionally discloses a kind of display devices, as shown in figure 9, including backlight module 2 and being placed in backlight module side
Display panel 1, wherein display panel 1 includes structure of polarized light described above.Backlight module 2 is produced for providing light source, light source
Raw incident light, the incident light are concentrated on vertical direction in display panel 1 is incident in the range of low-angle, which can
Less than 30 °.Most of light that display panel 1 receives is vertical incidence light, since there are the first optical compensations in display panel 1
Film and the second optical compensation films and the contact surface of the second optical compensation films and the first optical compensation films is formed with bulge-structure, convex
Vertical incidence light can be deflected at structure by diffraction by rising, so that positive visual angle energy is assigned to side view angle, improve side
The image quality at visual angle.Structure of polarized light in display panel is being described above, and details are not described herein again.Wherein, light in backlight module 20
Source can be side entering type light source, and the upper and lower surface of light guide plate is equipped with strip V-groove, the side wall of light guide plate lower surface V-groove and side
Enter that formula light source is parallel, the V-groove of light guide plate upper surface 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 embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (11)
1. a kind of structure of polarized light characterized by comprising
Light polarizing film, the light polarizing film include incidence surface and the light-emitting surface opposite with the incidence surface；
First optical compensation films, on the light-emitting surface of the light polarizing film, first optical compensation films have first refractive index,
First optical compensation films are formed with multiple grooves away from the light polarizing film light-emitting surface on one side；
Second optical compensation films are formed with multiple bulge-structures to match with the groove shapes, size, the bulge-structure
Width be less than or close to incident light wavelength, second optical compensation films fit on first optical compensation films, and
The bulge-structure is contained in the groove, and second optical compensation films have the second refractive index, the first refractive index
Greater than second refractive index.
2. structure of polarized light as described in claim 1, which is characterized in that the width of the bulge-structure is greater than or equal to 300nm,
And it is less than or equal to 1000nm.
3. structure of polarized light as described in claim 1, which is characterized in that the bulge-structure is raised for strip, and the length
Strip bulge structure is arranged side by side.
4. structure of polarized light as described in claim 1, which is characterized in that the bulge-structure is arranged in two-dimensional matrix array, and
The length and width of the bulge-structure be respectively less than or close to incident light wavelength.
5. structure of polarized light as described in claim 3 or 4, which is characterized in that the bulge-structure is cuboid bulge-structure.
6. structure of polarized light as described in claim 1, which is characterized in that the light polarizing film has penetrating shaft, first optics
Compensation film is the first uniaxial A- compensation film, and the optical axis of the first uniaxial A- compensation film is parallel with the penetrating shaft, described
First refractive index is the abnormal refraction rate of the first uniaxial A- compensation film, and second optical compensation films are uniaxial C- benefit
Film is repaid, the optical axis of the uniaxial C- compensation film is vertical with the penetrating shaft, and second refractive index is uniaxial C- benefit
Repay the normal refractive index of film.
7. structure of polarized light as described in claim 1, which is characterized in that the light polarizing film has penetrating shaft, first optics
Compensation film is the first uniaxial A- compensation film, and the second optical compensation films of institute are the second uniaxial A- compensation film, first monochromatic light
The optical axis of axis A- compensation film is parallel with the penetrating shaft, and the first refractive index is the abnormality of the first uniaxial A- compensation film
The optical axis of refractive index, the second uniaxial A- compensation film is vertical with the penetrating shaft, and second refractive index is described second
The normal refractive index of uniaxial A- compensation film.
8. structure of polarized light as described in claim 1, which is characterized in that doped with anti-hyun function in second optical compensation films
Resin particle.
9. a kind of structure of polarized light characterized by comprising
Light polarizing film has penetrating shaft, and the light polarizing film includes incidence surface and the light-emitting surface opposite with the incidence surface；
First optical compensation films, first optical compensation films are the first uniaxial A- compensation film, and the first uniaxial A- is mended
Film is repaid on the light-emitting surface of the light polarizing film, the uniaxial A- compensation film has abnormal refraction rate, first uniaxial
The optical axis of A- compensation film is parallel with the penetrating shaft, and the first uniaxial A- compensation film deviates from the one of the light polarizing film light-emitting surface
Face is formed with multiple grooves；
Second optical compensation films, second optical compensation films are uniaxial C- compensation film, and the uniaxial C- compensation film is formed
There are multiple bulge-structures to match with the groove shapes, size, the bulge-structure is arranged in two-dimensional matrix array, described
The length and width of bulge-structure be respectively less than or close to incident light wavelength, the uniaxial C- compensation film fits in described first
In uniaxial A- compensation film, and the bulge-structure is contained in the groove, and the uniaxial C- compensation film has normal folding
Rate is penetrated, the optical axis of the uniaxial C- compensation film is vertical with the penetrating shaft, the abnormal refraction rate of the uniaxial A- compensation film
Greater than the normal refractive index of the uniaxial C- compensation film.
10. a kind of display panel, comprising:
First substrate, the first substrate include incident side and light emission side；
The second substrate, positioned at the first substrate light emission side and be oppositely arranged with the first substrate；
First polarizer is formed in the side for deviating from the second substrate on the first substrate；
Second polarizer is formed in the side for deviating from the first substrate in the second substrate；
It is characterized in that,
First polarizer includes the described in any item structure of polarized light of claim 1 to 7；And/or
Second polarizer includes the described in any item structure of polarized light of claim 1 to 9.
11. 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 is display panel described in any one of claim 10.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811161965.3A CN109031501A (en) | 2018-09-30 | 2018-09-30 | Structure of polarized light, display panel and display device |
| PCT/CN2018/119258 WO2020062559A1 (en) | 2018-09-30 | 2018-12-05 | Polarizer structure and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811161965.3A CN109031501A (en) | 2018-09-30 | 2018-09-30 | Structure of polarized light, display panel and display device |
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| Publication Number | Publication Date |
|---|---|
| CN109031501A true CN109031501A (en) | 2018-12-18 |
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ID=64615656
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811161965.3A Pending CN109031501A (en) | 2018-09-30 | 2018-09-30 | Structure of polarized light, display panel and display device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109031501A (en) |
| WO (1) | WO2020062559A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109411514A (en) * | 2018-09-29 | 2019-03-01 | 云谷（固安）科技有限公司 | Display panel and display device |
| CN109613760A (en) * | 2019-01-30 | 2019-04-12 | 惠科股份有限公司 | Optical film layer and display device |
| CN109633985A (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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| JP2000258772A (en) * | 1999-03-10 | 2000-09-22 | Nippon Mitsubishi Oil Corp | Liquid crystal display device |
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| KR100498267B1 (en) * | 2003-01-28 | 2005-06-29 | 주식회사 엘지화학 | Vertically aligned liquid crystal display having a positive compensation film |
| JP2009075533A (en) * | 2007-08-31 | 2009-04-09 | Nippon Oil Corp | Elliptic polarization plate and liquid crystal display device |
| WO2016175580A1 (en) * | 2015-04-29 | 2016-11-03 | 삼성에스디아이 주식회사 | Optical film for improving contrast ratio, polarizing plate including same, and liquid crystal display device including same |
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- 2018-09-30 CN CN201811161965.3A patent/CN109031501A/en active Pending
- 2018-12-05 WO PCT/CN2018/119258 patent/WO2020062559A1/en active Application Filing
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| JP2000258772A (en) * | 1999-03-10 | 2000-09-22 | Nippon Mitsubishi Oil Corp | Liquid crystal display device |
| CN1860404A (en) * | 2004-11-12 | 2006-11-08 | Lg化学株式会社 | Vertically aligned liquid crystal display |
| CN101086590A (en) * | 2006-02-22 | 2007-12-12 | 统宝光电股份有限公司 | Systems for displaying images involving alignment liquid crystal displays |
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| CN109411514A (en) * | 2018-09-29 | 2019-03-01 | 云谷（固安）科技有限公司 | Display panel and display device |
| CN109613760A (en) * | 2019-01-30 | 2019-04-12 | 惠科股份有限公司 | Optical film layer and display device |
| CN109633985A (en) * | 2019-01-30 | 2019-04-16 | 惠科股份有限公司 | Optical film layer and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020062559A1 (en) | 2020-04-02 |
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Application publication date: 20181218 |