CN109188591A - Polarizer and display device - Google Patents
Polarizer and display device Download PDFInfo
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- CN109188591A CN109188591A CN201811160422.XA CN201811160422A CN109188591A CN 109188591 A CN109188591 A CN 109188591A CN 201811160422 A CN201811160422 A CN 201811160422A CN 109188591 A CN109188591 A CN 109188591A
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- 239000010410 layer Substances 0.000 claims abstract description 160
- 239000012788 optical film Substances 0.000 claims abstract description 81
- 239000011241 protective layer Substances 0.000 claims abstract description 56
- 230000010287 polarization Effects 0.000 claims description 39
- 239000010408 film Substances 0.000 claims description 22
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 10
- 239000005416 organic matter Substances 0.000 claims description 6
- 239000011159 matrix material Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims 1
- 230000000007 visual effect Effects 0.000 abstract description 29
- 230000003287 optical effect Effects 0.000 abstract description 14
- 230000035515 penetration Effects 0.000 abstract 1
- 239000004973 liquid crystal related substance Substances 0.000 description 19
- 238000010586 diagram Methods 0.000 description 11
- 230000000149 penetrating effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 229920000728 polyester Polymers 0.000 description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 3
- 239000004926 polymethyl methacrylate Substances 0.000 description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 description 3
- 239000004988 Nematic liquid crystal Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- BAZVSMNPJJMILC-UHFFFAOYSA-N triadimenol Chemical compound C1=NC=NN1C(C(O)C(C)(C)C)OC1=CC=C(Cl)C=C1 BAZVSMNPJJMILC-UHFFFAOYSA-N 0.000 description 2
- 241001062009 Indigofera Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 210000004276 hyalin Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
- 230000001550 time effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- G02F1/1336—Illuminating devices
- G02F1/13362—Illuminating devices providing polarized light, e.g. by converting a polarisation component into another one
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Liquid Crystal (AREA)
- Polarising Elements (AREA)
Abstract
The invention relates to a polarizer and a display device. A polarizer comprises a protective layer, a single optical axis optical film layer and a polarizing layer, wherein the single optical axis optical film layer is arranged on the protective layer, the extraordinary ray refractive index of the single optical axis optical film layer is greater than that of the protective layer, the single optical axis optical film layer comprises a plate-shaped part and a plurality of prism parts which are formed on one side of the plate-shaped part and arranged at intervals, and the prism parts are all contained in the protective layer; the polarizing layer is laminated on the side of the plate-shaped part far away from the prism part. The polaroid can improve visual angle color cast and has better panel penetration rate.
Description
Technical field
The present invention relates to field of display technology, more particularly to a kind of polaroid and display device.
Background technique
Existing large scale display panel include LCD (Liquid Crystal Display, liquid crystal display) panel and
OLED (Organic Light-Emitting Diode, Organic Light Emitting Diode) panel etc., wherein LCD panel includes VA
(Vertical Alignment, vertical arrangement) liquid crystal display panel and IPS (In-Plane Switching, plane conversion) liquid crystal surface
Plate etc., there are higher production efficiencys and low manufacturing cost to obtain advantage, but optics compared to IPS liquid crystal display panel for VA type liquid crystal display panel
Optical property defect is obtained there are more apparent compared to IPS liquid crystal display panel in nature, especially large size panel is in business application side
Face needs biggish visual angle to present, and VA type liquid crystal display panel, which is rapidly saturated in big visual angle brightness with voltage, causes visual angle image quality to when
Colour cast is serious compared to image quality deterioration is faced, and there are problems that colour cast.
VA type liquid crystal technology solve visual angle colour cast mode be by R (red), G (green), B (indigo plant) each sub-pixel it is subdivided based on
Sub-pixel, so that whole big visual angle brightness is closer to face with voltage change, it is this to give difference by spatially primary and secondary pixel
Driving voltage solve the mode of the defect of visual angle colour cast, generally require redesign metal routing or switch element to drive time
Pixel causes light-permeable open region sacrifice, influences panel penetrance.
Summary of the invention
Based on this, it is necessary to which visual angle colour cast and the preferable polaroid of panel penetrance can be improved by providing one kind.
In addition, additionally providing a kind of display device.
A kind of polaroid, comprising:
Protective layer；
Uniaxial optical film layer on the protective layer, the extraordinary ray refractive index of the uniaxial optical film layer are set
Greater than the refractive index of the protective layer, the uniaxial optical film layer includes plate-like portion and is formed on the side of the plate-like portion
Multiple spaced prism portions, multiple prism portions are housed in the protective layer, wherein multiple prism portions are equal
For triangular prism structure or trigone wimble structure, when multiple prism portions are triangular prism structure, the one of each prism portion
A side fits with the plate-like portion, when multiple prism portions are trigone wimble structure, the bottom in each prism portion
Face fits with the plate-like portion；
Polarization layer is layered in side of the plate-like portion far from the prism portion.
Above-mentioned polaroid between protective layer and polarization layer by being arranged uniaxial optical film layer, and uniaxial optical film layer
Extraordinary ray refractive index be greater than protective layer refractive index, light travels to uniaxial optical film layer by protective layer, due to refractive index
Difference can generate refraction or diffusion phenomena, when multiple prism portions of uniaxial optical film layer are triangular prism structure or triangular pyramid
The light of structure, the interface out of plumb of the direction of travel and protective layer and uniaxial optical film layer of light can allow positive visual angle light energy to be divided
It is fitted on side view angle, the image quality for allowing side view angle that can watch positive visual angle is presented, and solves the problems, such as the big visual angle colour cast of display device；Together
When, display panel does not need to divide each sub-pixel of RGB as main pixel and sub-pixel structure, avoids redesign metal routing or opens
Element is closed to drive sub-pixel, light-permeable open region sacrifice is caused, influences panel penetrance.Therefore, above-mentioned polaroid can not only
Enough improve visual angle colour cast, and panel penetrance is preferable.
The extraordinary ray refractive index of the uniaxial optical film layer is 1.0~2.5 in one of the embodiments,.
The folding of the extraordinary ray refractive index of the uniaxial optical film layer and the protective layer in one of the embodiments,
The difference for penetrating rate is 0.01~1.5.
Multiple prism portions are triangular prism structure in one of the embodiments, and multiple prism portions are parallel
Arrangement, the distance between the incline of the prism portion of adjacent two far from the plate-like portion side are greater than or equal to each described
Two incline the distance between of the prism portion close to the plate-like portion.
Multiple prism portions are trigone wimble structure in one of the embodiments, and multiple prism portions are in two dimension
Matrix arrangement, each prism portion has the vertex opposite with the bottom surface, by the institute in two adjacent prism portions
State the line between vertex and vertical plane and the bottom surface phase perpendicular to the bottom surface in two adjacent prism portions
It hands over, one bottom surface in the vertical plane and two adjacent prism portions has intersection, the length of the intersection
Degree is less than or equal to the length of the line.
The material of the uniaxial optical film layer is nematic liquid crystal molecular material in one of the embodiments,；And/
Or, the protective layer is organic matter layer.
It in one of the embodiments, further include compensation film layer, the compensation film layer stackup is in the polarization layer far from institute
State uniaxial optical film layer side.
It in one of the embodiments, further include pressure-sensitive adhesive layer, it is separate that the pressure-sensitive adhesive layer is layered in the compensation film layer
The polarization layer side.
A kind of polaroid, comprising:
Protective layer；
Uniaxial optical film layer on the protective layer, the extraordinary ray refractive index of the uniaxial optical film layer are set
Greater than the refractive index of the protective layer, the uniaxial optical film layer includes plate-like portion and is formed on the side of the plate-like portion
Multiple spaced prism portions, multiple prism portions are housed in the protective layer, wherein multiple prism portions are equal
A side for triangular prism structure, each prism portion fits with the plate-like portion, and multiple prism portions are along one
Straight line parallel arrangement, the prism portion of adjacent two is greater than or equal to far from the distance between the incline of the plate-like portion side
Two incline the distance between of each prism portion close to the plate-like portion；
Polarization layer is layered in side of the plate-like portion far from the prism portion.
A kind of display device, including backlight, display panel and above-mentioned polaroid, the display panel is located at the back
The side of light source, the polaroid is between the display panel and the backlight；Alternatively, the polaroid is positioned at described
Side of the display panel far from the backlight.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the display device of an embodiment；
Fig. 2 is the structural schematic diagram of the backlight of display device shown in FIG. 1；
Fig. 3 is the structural schematic diagram of the polaroid of display device shown in FIG. 1；
Fig. 4 is the structural schematic diagram of the uniaxial optical film layer of polaroid shown in Fig. 3；
Fig. 5 is the structural schematic diagram for the uniaxial optical film layer that prism portion shown in Fig. 4 is triangular prism structure；
Fig. 6 is the structural schematic diagram of another angle of uniaxial optical film layer shown in fig. 5；
Fig. 7 is the structural schematic diagram for the uniaxial optical film layer that prism portion shown in Fig. 4 is trigone wimble structure；
Fig. 8 is the structural schematic diagram of another angle of uniaxial optical film layer shown in Fig. 7；
Fig. 9 is the structural schematic diagram of another angle of uniaxial optical film layer shown in Fig. 7；
Figure 10 is the uniaxial optical film layer of polaroid shown in Fig. 3 and the structural schematic diagram of protective layer；
Figure 11 is the structural schematic diagram of the upper polaroid of display device shown in FIG. 1.
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 herein
Described embodiment.On the contrary, purpose of providing these embodiments is keeps the understanding to the disclosure more saturating
It is thorough comprehensive.
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
Body embodiment purpose, it is not intended that in limitation the present invention.
Referring to Fig. 1, the display device 10 of an embodiment includes LCD display panel and OLED display panel etc..Into one
Step ground, LCD display panel includes VA liquid crystal display panel and IPS liquid crystal display panel.Further, display device 10 is VA liquid crystal surface
Plate.Specifically, display device 10 includes backlight 100, polaroid 200, display panel 300 and upper polaroid 400.
Wherein, backlight 100 is to collimate out light back light (collimate light emitting BL), so that light
Energy concentrate on the output of positive visual angle.
Referring to Figure 2 together, specifically, backlight 100 includes reflector plate 110, light guide plate 120, prism film 130 and LED
Light source 140, reflector plate 110 are stacked gradually with light guide plate 120, prism film 130, and light guide plate 120 has incidence surface 121, LED light source
140 are oppositely arranged with incidence surface 121, and light guide plate 120 offers the first groove 122 of bar shaped close to the side of reflector plate 110, the
The section of one groove 122 is V-shaped, and the extending direction of the first groove 122 is vertical with the light direction of LED light source 140, light guide plate
120 offer the second groove 123 of bar shaped close to the side of prism film 130, and the section of the second groove 123 is V-shaped, the second groove
123 extending direction is parallel with the light direction of LED light source 140.Further, the prism side of prism film 130, which is layered in, leads
On tabula rasa 120.
Also referring to Fig. 3, polaroid 200 includes the first protective layer 210, uniaxial optical film layer 220, the first polarization layer
230, the first compensation film layer 240 and the first pressure sensitive adhesive (PSA) layer 250.
First protective layer 210 is hyaline layer, main to play support and protective effect.Wherein, the first protective layer 210 is organic matter
Layer.Further, organic matter layer is selected from polyester (PET) layer, Triafol T layer (TAC) and polymethyl methacrylate
(PMMA) one of layer.
Uniaxial optical film layer 220 has optical anisotropy, and light can be generated birefringent by uniaxial optical film layer 220
Phenomenon.Wherein, it can be equivalent to the mutually perpendicular two-beam line of direction of vibration into the light of uniaxial optical film layer 220, with
The vertical light of the optical axis of uniaxial optical film layer, referred to as ordinary ray, abbreviation O light；It is flat with the optical axis of uniaxial optical film layer
Capable light, referred to as extraordinary ray, abbreviation E light.Further, extraordinary ray refractive index (ne) is uniaxial optical film layer
The 220 optical axis equivalent refractive index parallel with electric field oscillation direction；Ordinary refraction index (no) is uniaxial optical film layer 220
The optical axis equivalent refractive index vertical with electric field oscillation direction.
Further, the extraordinary ray refractive index of uniaxial optical film layer 220 is 1.0~2.5.
Further, the extraordinary ray refractive index of uniaxial optical film layer 220 is greater than the refractive index of the first protective layer 210,
And the specific refractivity of the extraordinary ray refractive index of uniaxial optical film layer 220 and the first protective layer 210 is 0.01~1.5.Its
In, the extraordinary ray refractive index of uniaxial optical film layer 220 and the specific refractivity of the first protective layer 210 are bigger, easier to incite somebody to action
It faces light energy and is assigned to big visual angle.
Specifically, the material of uniaxial optical film layer 220 is nematic liquid crystal molecular material.
Referring to Figure 4 together, uniaxial optical film layer 220 is arranged on protective layer 210.Specifically, uniaxial optical film
Layer 220 include plate-like portion 221 and with multiple prism portions 222.
Plate-like portion 221 is layered on the first protective layer 210.
Multiple prism portions 222 are formed on the side of plate-like portion 221, and are spaced setting, and multiple prism portions 222 are housed in
In first protective layer 210.Wherein, multiple prism portions 222 are located at plate-like portion 221 close to 210 side of the first protective layer.Specifically,
Multiple prism portions 222 are triangular prism structure or trigone wimble structure.
When multiple prism portions 222 are triangular prism structure, a side and 221 phase of plate-like portion in each prism portion 222
Fitting.Further, multiple 222 parallel arrangements of prism portion, adjacent side of two prism portions 222 far from 221 side of plate-like portion
The distance between rib is greater than or equal to prism portion 222 close to the distance between two inclines of plate-like portion 221.For example, please together
Refering to Fig. 5 and Fig. 6, the distance between the incline of two adjacent prism portions 222 far from 221 side of plate-like portion (Px1) be greater than or
Equal to prism portion 222 close to the distance between two inclines of plate-like portion 221 (Lx1)；D+d is uniaxial optical film layer 220
Maximum gauge.
Wherein, the optical axis direction (long axis direction) of liquid crystal is parallel to light-emitting surface or incidence surface in uniaxial optical film layer 220,
Both it can be parallel to the arragement direction in multiple prism portions 222, perpendicular to the extending direction in each prism portion 222, and can be vertical
Arragement direction in multiple prism portions 222 is parallel to the extending direction in each prism portion 222.Wherein, depending on the first polarization layer 230
The polarization direction that penetrates determine extraordinary ray direction refractive index (ne) and ordinary light direction refractive index (no).That is uniaxial optical film
The optical axis direction (long axis direction) of liquid crystal is parallel to the axis direction that penetrates of the first polarization layer 230 in layer 220, and uniaxial optical film
Layer 220 in liquid crystal optical axis direction (long axis direction) perpendicular to liquid crystal in uniaxial optical film layer 220 short-axis direction, therefore,
The axis direction that penetrates of first polarization layer 230 determines extraordinary ray direction refractive index (ne) and ordinary light direction refractive index (no).
Wherein, when multiple 222 parallel arrangements of prism portion, the incline in multiple prism portions 222 is parallel to each other.Further, more
A prism portion 222 parallel arrangement along a straight line.Specifically, multiple prism portions 222 are regular triangular prism structure.
Further, when multiple prism portions 222 are trigone wimble structure, a bottom surface in each prism portion 222 and plate
Shape portion 221 fits.Further, multiple prism portions 222 are arranged in two-dimensional matrix, more effectively by positive visual angle light energy
It is assigned to two-dimensional directional, so that 10 full view of display device is ornamental more uniform.Wherein, referring to Figure 7 together to Fig. 9, each
Prism portion 222 have the vertex opposite with bottom surface, by the line between the vertex in two adjacent prism portions 222 and perpendicular to
The vertical plane of the bottom surface in two adjacent prism portions 222 intersects with the bottom surface in two adjacent prism portions 222, vertical plane and adjacent two
The length (Lx2 or Ly) of the intersection of the bottom surface in each of a prism portion 222 be less than or equal to line length (Px2 or
Py), i.e. Lx2≤Px2, Ly≤Py.Specifically, multiple prism portions 222 are positive triangular pyramid structure.
First polarization layer 230 is layered in plate-like portion 221 far from 222 side of prism portion.Wherein, the first polarization layer 230 for
Polarised light has the effect absorbed with penetrating, cooperates the adjustable luminous intensity of the driving of liquid crystal molecule.In addition, the first protective layer
210 can support and protect the first polarization layer 230.Specifically, polarization layer 230 is polyvinyl alcohol (PVA) layer.
Wherein, the first protective layer 210 and uniaxial optical film layer 220 form smooth optical film.First protective layer, 210 He
Uniaxial optical film layer 220 will keep certain thickness, to guarantee the weatherability of the first polarization layer 230, make the first polarization layer 230
External environment is not contacted, prevents moisture from having an impact to the first polarization layer 230.
Go out optical electric field direction of vibration according to the difference of the first polarization layer 230 and can choose the non-of uniaxial optical film layer 220 to seek
Ordinary light direction refractive index (ne) and ordinary light direction refractive index (no), when the polarization direction for going out light of the first polarization layer 230 is (parallel
Penetrate axis direction in the first polarization layer 230) it is parallel with x-axis direction when, 220 refractive index of uniaxial optical film layer be ne=nx >
No=ny, or when the first polarization layer 230 go out light polarization direction (be parallel to the first polarization layer 230 penetrates axis direction) with
When Y direction is parallel, 220 refractive index of uniaxial optical film layer be ne=ny > no=nx, film thickness direction (perpendicular to light-emitting surface) with
Z-direction is parallel, and the refractive index of uniaxial optical film layer 220 is nz=no.
Also referring to Figure 10, wherein the light energy at positive visual angle is assigned to the principle at big visual angle are as follows: light is by optically thinner medium
Optically denser medium is traveled to, i.e. light travels to uniaxial optical film layer 220 by the first protective layer 210, due to the difference meeting of refractive index
Refraction or diffusion phenomena are generated, when multiple prism portions 222 of uniaxial optical film layer 220 are selected from triangular prism structure and triangular pyramid
The light of the interface out of plumb of one of structure, the direction of travel of light and the first protective layer 210 and uniaxial optical film layer 220
Positive visual angle light energy can be allowed to be assigned to side view angle, the image quality for allowing side view angle that can watch positive visual angle is presented.
First compensation film layer 240 is layered in the first polarization layer 230 far from 220 side of uniaxial optical film layer.Wherein, first
Compensating film layer 240 has birefringence, can compensate for the polarization light output at the big visual angle of liquid crystal molecule, simultaneously, additionally it is possible to support
And protect the first polarization layer 230.
First pressure-sensitive adhesive layer 250 is layered in the first compensation film layer 240 far from 230 side of the first polarization layer.
It should be noted that polaroid 200 is not limited to above structure, the first compensation film layer 240 and the first pressure-sensitive adhesive layer 250
Layer can according to need setting, and the two is dispensed.
The working principle of above-mentioned polaroid 200 are as follows:
When prism portion 222 is triangular prism structure, light first passes through polaroid 200, polaroid before entering display panel 300
200 PVA layer 230 has the effect for absorbing and penetrating for polarised light, and light, which enters polaroid 200, can be divided into horizontal polarisation component
Light and vertical polarisation component light, when the penetrating shaft of polaroid 200 is parallel to the arragement direction (0/ in multiple prism portions 222
180degree), when absorption axiss are parallel to each 222 extending direction of prism portion (90/270degree), then horizontal polarization point is considered
In protective layer 210 and uniaxial optical film layer 220, (220 refractive index of uniaxial optical film layer is ne=nx > no=to the light of amount at this time
Ny effect), for the light of horizontal polarisation component by the first protective layer 210, the light of horizontal polarisation component is right in the first protective layer 210
The equivalent refractive index answered is n, after by uniaxial optical film layer 220, the extraordinary ray corresponding to uniaxial optical film layer 220 is rolled over
Penetrating rate is ne, therefore in two medium junctions the thin behavior into optically denser medium (ne > n) of light occurs for the light of the horizontal polarization, and light is dredged
The non-interface vertical with light direction of advance that medium and optically denser medium are formed, light generate refraction effect by the interface, and
Positive visual angle light type energy is set to distribute big visual angle.
Similarly, it when the penetrating shaft of polaroid 200 is parallel to each 222 extending direction of prism portion (90/270degree), inhales
When receipts axis is parallel to arragement direction (0/180degree) in multiple prism portions 222, then the light of penetrating shaft vertical polarisation component is considered
In protective layer 210 and uniaxial optical film layer 220, (220 refractive index of uniaxial optical film layer is ne=ny > no=nx's) at this time
Effect, for the light of vertical polarisation component by the first protective layer 210, the light of vertical polarisation component is corresponding in the first protective layer 210
Equivalent refractive index is n, after extraordinary ray refractive index by uniaxial optical film layer 220, corresponding to uniaxial optical film layer 220
For ne, therefore the light of the horizontal polarization occurs light in two medium junctions and dredges behavior into optically denser medium (ne > n), optically thinner medium
The non-interface vertical with light direction of advance formed with optically denser medium, light generates refraction effect by the interface, and makes just
Visual angle light type energy distributes big visual angle.
Display panel 300 is layered in side of the polaroid 200 far from backlight 100.Further, 300 layers of display panel
It is stacked in side of first pressure-sensitive adhesive layer 250 far from the first compensation film layer 240.Specifically, display panel 300 is LCD display
Plate.
Upper polaroid 400 is layered in liquid crystal display panel 300 far from 200 side of polaroid.Also referring to Figure 11, specifically,
Upper polaroid 400 includes the second pressure-sensitive adhesive layer 410, the second compensation film layer 420 stacked gradually, the second polarization layer 430, second guarantor
Sheath 440, optical film layer 450 and anti-glazing low reflection layer 460.
Wherein, the second pressure-sensitive adhesive layer 410 is roughly the same with the material of the first pressure-sensitive adhesive layer 250 and function；Second compensation film
Layer 420 is roughly the same with the material of the first compensation film layer 240 and function；The material of second polarization layer 430 and the first polarization layer 230
It is roughly the same with function；Second protective layer 440 is roughly the same with the function of the first protective layer 210, the material of the second protective layer 440
For organic matter layer.Further, organic matter layer is selected from high temperature resistance polyester (PET) layer, Triafol T layer (TAC) and PMMA layers
One of；The function that optical film layer 450 can according to need selects corresponding film；The effect of anti-glazing low reflection layer 460 is
It prevents glare and reduces the reflection of light, to reduce the energy loss of light.
It should be noted that display device 10 is not limited to above structure, the upper polaroid 400 in display device 10 can also be with
For polaroid 200, i.e. polaroid 200 can also be used as upper polaroid, and be located at one of display panel 300 far from backlight 100
Side.
Above-mentioned display device 10 at least has the advantages that
Above-mentioned polaroid 200 between the first protective layer 210 and the first polarization layer 230 by being arranged uniaxial optical film layer
220, and the extraordinary ray refractive index of uniaxial optical film layer 220 is greater than the refractive index of protective layer 210, light is by the first protective layer
210 travel to uniaxial optical film layer 220, since the difference of refractive index can generate refraction or diffusion phenomena, when uniaxial optics
Multiple prism portions of film layer 220 are selected from one of triangular prism structure and trigone wimble structure, and the direction of travel of light and first protect
The light of the interface out of plumb of sheath 210 and uniaxial optical film layer 220 can allow positive visual angle light energy to be assigned to side view angle, allow side
The image quality that visual angle can watch positive visual angle is presented, and solves the problems, such as the big visual angle colour cast of display device 10；Meanwhile display panel
300 do not need to divide each sub-pixel of RGB as main pixel and sub-pixel structure, and redesign metal routing or switch element is avoided
Sub-pixel is driven, light-permeable open region sacrifice is caused, influences panel penetrance.Therefore, above-mentioned polaroid 200 can not only improve
Visual angle colour cast, and panel penetrance is preferable.
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 (10)
1. a kind of polaroid characterized by comprising
Protective layer；
Uniaxial optical film layer on the protective layer is set, and the extraordinary ray refractive index of the uniaxial optical film layer is greater than
The refractive index of the protective layer, the uniaxial optical film layer include plate-like portion and are formed in multiple on the side of the plate-like portion
Spaced prism portion, multiple prism portions are housed in the protective layer, wherein multiple prism portions are three
Prism structure or trigone wimble structure, when multiple prism portions are triangular prism structure, a side in each prism portion
Face fits with the plate-like portion, when multiple prism portions are trigone wimble structure, the bottom surface in each prism portion with
The plate-like portion fits；
Polarization layer is layered in side of the plate-like portion far from the prism portion.
2. polaroid according to claim 1, which is characterized in that the extraordinary ray refractive index of the uniaxial optical film layer
It is 1.0~2.5.
3. polaroid according to claim 1, which is characterized in that the extraordinary ray refractive index of the uniaxial optical film layer
Specific refractivity with the protective layer is 0.01~1.5.
4. polaroid according to claim 1, which is characterized in that multiple prism portions are triangular prism structure, and more
A prism portion parallel arrangement, the distance between the incline of the prism portion of adjacent two far from the plate-like portion side are big
In or equal to each prism portion close to the plate-like portion the distance between two inclines.
5. polaroid according to claim 1, which is characterized in that multiple prism portions are trigone wimble structure, multiple
The prism portion arranges in two-dimensional matrix, and each prism portion has the vertex opposite with the bottom surface, by adjacent two
Line between the vertex in a prism portion and perpendicular to the bottom surface in two adjacent prism portions
Vertical plane intersects with the bottom surface, and one bottom surface in the vertical plane and two adjacent prism portions, which has, hands over
Line, the length of the intersection are less than or equal to the length of the line.
6. polaroid according to claim 1, which is characterized in that the material of the uniaxial optical film layer is nematic phase liquid
Brilliant molecular material；And/or the protective layer is organic matter layer.
7. polaroid according to claim 1, which is characterized in that further include compensation film layer, the compensation film layer stackup exists
The polarization layer is far from uniaxial optical film layer side.
8. polaroid according to claim 7, which is characterized in that further include pressure-sensitive adhesive layer, the pressure-sensitive adhesive layer is layered in
The compensation film layer is far from the polarization layer side.
9. a kind of polaroid characterized by comprising
Protective layer；
Uniaxial optical film layer on the protective layer is set, and the extraordinary ray refractive index of the uniaxial optical film layer is greater than
The refractive index of the protective layer, the uniaxial optical film layer include plate-like portion and are formed in multiple on the side of the plate-like portion
Spaced prism portion, multiple prism portions are housed in the protective layer, wherein multiple prism portions are three
One side of prism structure, each prism portion fits with the plate-like portion, and multiple prism portions are along a straight line
Parallel arrangement, the distance between the incline of the prism portion of adjacent two far from the plate-like portion side are greater than or equal to each
Two incline the distance between of the prism portion close to the plate-like portion；
Polarization layer is layered in side of the plate-like portion far from the prism portion.
10. a kind of display device, which is characterized in that including backlight, display panel and according to any one of claims 1 to 9
Polaroid, the display panel are located at the side of the backlight, and the polaroid is located at the display panel and the backlight
Between source；Alternatively, the polaroid is located at side of the display panel far from the backlight.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811160422.XA CN109188591A (en) | 2018-09-30 | 2018-09-30 | Polarizer and display device |
| PCT/CN2018/119505 WO2020062577A1 (en) | 2018-09-30 | 2018-12-06 | Polarizer and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811160422.XA CN109188591A (en) | 2018-09-30 | 2018-09-30 | Polarizer and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109188591A true CN109188591A (en) | 2019-01-11 |
Family
ID=64946529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811160422.XA Withdrawn CN109188591A (en) | 2018-09-30 | 2018-09-30 | Polarizer and display device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109188591A (en) |
| WO (1) | WO2020062577A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111679500A (en) * | 2020-06-22 | 2020-09-18 | 深圳市隆利科技股份有限公司 | Side-in backlight module for improving display brightness and liquid crystal display equipment |
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| EP0760490A2 (en) * | 1995-08-25 | 1997-03-05 | Kuraray Co., Ltd. | Image display apparatus |
| CN1912660A (en) * | 2005-08-08 | 2007-02-14 | 三星电子株式会社 | Polarizing film and display device having the same |
| US20140353618A1 (en) * | 2013-05-31 | 2014-12-04 | Samsung Electronics Co., Ltd. | Optical films for reducing color shift and organic light-emitting display apparatuses employing the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE602006009090D1 (en) * | 2005-04-08 | 2009-10-22 | 3M Innovative Properties Co | STRUCTURED ORIENTED FILMS FOR USE IN DISPLAYS |
| CN101573643B (en) * | 2006-12-27 | 2011-03-09 | 帝人株式会社 | Polarizing element and liquid crystal display device |
| JP5353385B2 (en) * | 2009-04-02 | 2013-11-27 | ソニー株式会社 | Manufacturing method of optical sheet |
| JPWO2011077742A1 (en) * | 2009-12-25 | 2013-05-02 | 三井化学株式会社 | Polarizing diffusion film, method for producing the same, and liquid crystal display device including polarizing diffusion film |
| JP2012237822A (en) * | 2011-05-10 | 2012-12-06 | Mitsui Chemicals Inc | Polarizing diffusion film, method for producing polarizing diffusion film, and liquid crystal display device including polarizing diffusion film |
| CN102866452B (en) * | 2011-07-05 | 2016-04-20 | 松下知识产权经营株式会社 | Light guide plate and planar light source device |
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2018
- 2018-09-30 CN CN201811160422.XA patent/CN109188591A/en not_active Withdrawn
- 2018-12-06 WO PCT/CN2018/119505 patent/WO2020062577A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0760490A2 (en) * | 1995-08-25 | 1997-03-05 | Kuraray Co., Ltd. | Image display apparatus |
| CN1912660A (en) * | 2005-08-08 | 2007-02-14 | 三星电子株式会社 | Polarizing film and display device having the same |
| US20140353618A1 (en) * | 2013-05-31 | 2014-12-04 | Samsung Electronics Co., Ltd. | Optical films for reducing color shift and organic light-emitting display apparatuses employing the same |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2020155281A1 (en) * | 2019-01-30 | 2020-08-06 | 惠科股份有限公司 | Optical film layer and display device |
| CN111679500A (en) * | 2020-06-22 | 2020-09-18 | 深圳市隆利科技股份有限公司 | Side-in backlight module for improving display brightness and liquid crystal display equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020062577A1 (en) | 2020-04-02 |
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