CN108594346A - Wire grid polarizer, the production method of wire grid polarizer, optical filter, the production method of optical filter and light alignment method - Google Patents
Wire grid polarizer, the production method of wire grid polarizer, optical filter, the production method of optical filter and light alignment method Download PDFInfo
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- CN108594346A CN108594346A CN201810362800.6A CN201810362800A CN108594346A CN 108594346 A CN108594346 A CN 108594346A CN 201810362800 A CN201810362800 A CN 201810362800A CN 108594346 A CN108594346 A CN 108594346A
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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
- G02B5/3058—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state comprising electrically conductive elements, e.g. wire grids, conductive particles
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
-
- 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
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
- G02F1/133516—Methods for their manufacture, e.g. printing, electro-deposition or photolithography
-
- 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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
Abstract
A kind of wire grid polarizer, wire grid polarizer includes transparent substrate and the wire-grid layer on substrate, wire-grid layer is formed with multiple first polarization areas and multiple second polarizations area on substrate, multiple first polarization areas and multiple second polarizations area are intervally arranged successively, the first grizzly bar and the second grizzly bar of a plurality of spaced setting are respectively equipped in first polarization area and the second polarization area, the first grizzly bar and the second grizzly bar are mutually perpendicular to.A kind of smooth alignment method carries out light orientation using above-mentioned wire grid polarizer.The light alignment method of the present invention uses above-mentioned wire grid polarizer, can disposably give alignment film different zones to define two orthogonal alignment directions simultaneously, and processing procedure is easy, can save the production time, reduce cost.The invention further relates to a kind of production methods of wire grid polarizer.The invention further relates to a kind of production methods of optical filter.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of wire grid polarizer, wire grid polarizer production method,
Optical filter, the production method of optical filter and light alignment method.
Background technology
Liquid crystal display (Liquid Crystal Display；LCD) not only have the characteristics that light, thin, small, and also have
Have the advantages that low in energy consumption, radiationless and manufacturing cost is relatively low, therefore occupies an leading position at present in display field.
Light alignment technique be it is a kind of irradiated by ultraviolet source, cause alignment film on liquid crystal display panel occur photo polymerization,
Photo-isomerisable or photic decomposition reaction generate the anisotropy on surface, and then induce the method for liquid crystal layer liquid crystal molecular orientation.For
It avoids pixel electrode and with visual angle aberration problem, has passed through caused by the initial orientation of liquid crystal molecule and started to grind there are many panel factory
Study carefully to be designed according to the farmland of pixel electrode and propose subregion orientation, defines each farmland and correspond to its best LCD alignment side
To improve colour cast.
But it is most at present that shadow mask subregion light alignment technique is used to need profit that is, when carrying out light orientation to a region
Another region is blocked with shadow mask, matches when the completion region and carries out another area light orientation again backward.Therefore, existing light is matched
It can not achieve to technology and disposable light orientation carried out to different zones, and the operating process of processing procedure is more, increases production cost.
Invention content
In view of this, the present invention provides a kind of wire grid polarizer, disposably alignment film different zones can be given to define two simultaneously
A orthogonal alignment direction, and processing procedure is easy, can save the production time, reduce cost.
A kind of wire grid polarizer, wire grid polarizer include that transparent substrate and the wire-grid layer on substrate, wire-grid layer exist
Multiple first polarization areas and multiple second polarizations area are formed on substrate, multiple first polarization areas and multiple second polarizations area are successively
It is intervally arranged, the first grizzly bar and second gate of a plurality of spaced setting is respectively equipped in the first polarization area and the second polarization area
Item, the first grizzly bar and the second grizzly bar are mutually perpendicular to.
In the preferred embodiment, above-mentioned wire grid polarizer, which is characterized in that the area in the first polarization area is equal to
The area in the second polarization area.
In the preferred embodiment, the spacing between above-mentioned adjacent first grizzly bar and between adjacent second grizzly bar
Spacing is equal, the equal length of the length of the first grizzly bar and the second grizzly bar, the width phase of the first grizzly bar and width and the second grizzly bar
Deng.
The present invention also provides a kind of production method of wire grid polarizer, the production method of wire grid polarizer includes following step
Suddenly：
Substrate is provided；
It heats the substrate, the first area and the secondth area of substrate is respectively pressed by the first compression module and the second compression module
Domain, and it is respectively formed multiple strip projected parts, the strip of first area and second area in the first area of substrate and second area
It is raised vertical, groove is formed between two strip projected parts, multiple first areas and multiple second areas are intervally arranged successively；
Form wire-grid layer on substrate, wire-grid layer be covered on strip projected parts and groove in；And
The wire-grid layer on the strip projected parts and strip projected parts of substrate, substrate is removed, to corresponding first area and the secondth area
Domain is respectively formed the first polarization area and the second polarization area, and wire-grid layer forms the first grizzly bar in the first polarization area, area is polarized second
It is formed with the second grizzly bar, the first grizzly bar and the second grizzly bar are mutually perpendicular to.
The present invention also provides a kind of optical filter, including transparent substrate, multiple first polarization Qu Heduo are formed on substrate
A second polarization area, multiple first polarization areas and multiple second polarizations area are intervally arranged successively, and the first polarization area is equipped with
Half-wave plate, the second polarization area are located at the region between adjacent half slide.
In the preferred embodiment, the area in above-mentioned first polarization area is equal to the area in the second polarization area.
The present invention also provides a kind of production method of optical filter, optical filter includes above-mentioned half-wave plate, the making of optical filter
Step includes：
Transparent substrate is provided；
Half-wave lamella is formed on the one side of substrate；
Half-wave plate layer is exposed using mask, the half slide floor in the second polarization of removal area, and in the first polarization area
Form a plurality of spaced half-wave plate.
The present invention also provides a kind of production method of optical filter, optical filter includes above-mentioned half-wave plate, the making of optical filter
Step includes：
Make monoblock half-wave plate；
Monoblock half-wave plate is divided into polylith half-wave plate；
Transparent substrate is provided；And
The a plurality of half-wave plate separated is arranged spaced reciprocally on the one side of substrate, the first polarization area is formed.
The present invention also provides a kind of smooth alignment methods, and light orientation, light alignment method are carried out using above-mentioned wire grid polarizer
The step of include：
Light alignment apparatus is provided, wire grid polarizer is arranged on alignment apparatus, wire grid polarizer is arranged in alignment apparatus
Light-emitting window at；And
Alignment film is arranged in the lower section of wire grid polarizer；
So that incident light is passed through wire grid polarizer, with generate the different emergent light in polarization direction to the different zones of alignment film into
Row light orientation.
The present invention also provides a kind of smooth alignment methods, and light orientation, the step of light alignment method are carried out using above-mentioned optical filter
Suddenly include：
Light alignment apparatus is provided, which is arranged on the alignment apparatus, which is arranged in the alignment apparatus
Light-emitting window at；And
Alignment film is arranged in the lower section of optical filter；
So that incident light is passed through optical filter, light is carried out to the different zones of alignment film to generate the different emergent light in polarization direction
Orientation.
The multiple first polarization areas and the second polarization area that the wire grid polarizer of the present invention includes, the first polarization area and second is partially
It shakes the first grizzly bar in area and the second grizzly bar can generate two kinds of orthogonal ultraviolet lights in polarization direction.The optical filter of the present invention
A plurality of half-wave plate can make the polarization direction of some ultraviolet lights deflect 90 °, other ultraviolet lights are logical from the spacing between each half-wave plate
It crosses, polarization direction is constant.Therefore, light alignment method of the invention is to carry out using above-mentioned wire grid polarizer, optical filter
Light orientation realizes and disposably gives alignment film different zones while definition two orthogonal alignment directions, and processing procedure letter
Just, the production time can be saved, reduces cost.
Description of the drawings
Fig. 1 a are the main structure diagrams of the wire grid polarizer of first embodiment of the invention.
Fig. 1 b are the overlooking structure diagrams of Fig. 1 a.
Fig. 2 is the flow diagram of the production method of the wire grid polarizer of one embodiment of the invention.
Fig. 3 is the flow diagram of the light alignment method of first embodiment of the invention.
Fig. 4 is the structural schematic diagram of the optical filter of second embodiment of the invention.
Fig. 5 is the flow diagram of the production method of the optical filter of second embodiment of the invention.
Fig. 6 is the flow diagram of the light alignment method of second embodiment of the invention.
Fig. 7 is the structural schematic diagram of the optical filter of third embodiment of the invention.
Fig. 8 is the flow diagram of the production method of the optical filter of third embodiment of the invention.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, the implementation below in conjunction with attached drawing to the present invention
Mode is further described.
First embodiment
Fig. 1 a are the main structure diagrams of the wire grid polarizer of first embodiment of the invention.Fig. 1 b are the vertical views of Fig. 1 a
Structural schematic diagram.As illustrated in figs. 1A and ib, wire grid polarizer 10 includes that transparent substrate 12, first polarizes area 13, second partially
It shakes area 14, the wire-grid layer 15 on substrate 12.First polarization area 13 and second polarizes width direction of the area 14 along substrate 12
Or length direction is intervally arranged successively, it is preferable that the first polarization area 13 and second polarizes length direction of the area 14 along substrate 12
It is intervally arranged successively.In the present embodiment, the first polarization area 13 and second polarizes the size of the size and subpixel area in area 14
It is equal, but be not limited thereto, it can be according to actual conditions unrestricted choice.
Specifically, wire-grid layer 15 is formed with multiple first polarization areas 13 and multiple second polarizations area 14 on the substrate 12, the
The area in one polarization area 13 is equal to the area in the second polarization area 14, and a plurality of first grizzly bar 131 is equipped in the first polarization area 13, the
Two polarization areas 14 are equipped with a plurality of second grizzly bar 141.In the present embodiment, the material of substrate 12 is polymethyl methacrylate, but
It is not limited thereto, substrate 12 can also be transparent glass, ITO (tin indium oxide), IZO (indium zinc oxide).
The setting direction of first grizzly bar 131 and the second grizzly bar 141 is mutually perpendicular to and spaced, 131 He of the first grizzly bar
Second grizzly bar 141 is intervally arranged successively along the length direction of substrate 12, between adjacent two the first grizzly bars 131 and adjacent
It is respectively formed identical spacing between two the second grizzly bars 141, the equal length of the length of the first grizzly bar 131 and the second grizzly bar 141,
The width of first grizzly bar 131 is equal with the width of the second grizzly bar 141 so that the first polarization area 13 and second, which polarizes area 14, has phase
Same illuminating area ensures that there is no the factors that orientation quality is influenced because of intensity of illumination difference when light orientation.In the present embodiment
In, spacing can pass through polarised light of the polarization direction perpendicular to the setting direction of the first grizzly bar 131 or the second grizzly bar 141, so the
One grizzly bar 131 and the second grizzly bar 141 can generate two orthogonal polarised lights in polarization direction, can define two to alignment film simultaneously
A orthogonal alignment direction.
Fig. 2 is the flow diagram of the production method of the wire grid polarizer of one embodiment of the invention.As shown in Fig. 2, the line
The production method of grid polarizing film 10 includes the following steps：
Step S11, provides substrate.In the present embodiment, the material of substrate is aluminium or silver, but is not limited thereto.
Step S12, heats the substrate 12, and the first of substrate 12 is respectively pressed by the first compression module and the second compression module
Region and second area, and multiple strip projected parts are respectively formed in the first area of substrate 12 and second area, first area and
The strip projected parts of second area are vertical, formed between two strip projected parts groove, multiple first areas and multiple second areas according to
Minor tick is arranged.In the present embodiment, when heating the substrate 12, temperature is heated to the first temperature, the first temperature is substrate 12
Glass transformation temperature；Before forming wire-grid layer 15, substrate 12 is cooled to second temperature, and removes the first compression module and the
Two compression modules, wherein second temperature is less than the first temperature.
In the present embodiment, the first compression module and the second compression module are respectively equipped with the first compacting wiregrating and the second compacting
Wiregrating, shape, the size of the first compacting wiregrating are identical as shape, the size of the first grizzly bar 131；The shape of second compacting wiregrating,
Size is identical as shape, the size of the second grizzly bar 141, the specific production method about the first compression module and the second compression module
The prior art is please referred to, details are not described herein again.
Step S13, on the substrate 12 formed wire-grid layer 15, wire-grid layer 15 be covered on strip projected parts and groove in.At this
In embodiment, the material of wire-grid layer 15 is metal material, for example, aluminium, molybdenum or silver, but is not limited thereto.By metal material
Aluminium, molybdenum or silver are uniformly coated on substrate 12 by the first compression module and the pressed surface of the second compression module, form wiregrating
Layer 15, wire-grid layer 15 will be covered on strip projected parts and groove in.
Step S14 removes the wire-grid layer 15 on the strip projected parts and strip projected parts of substrate, substrate 12.To corresponding the
Polarization area 14 of the first polarization area 13 and second is respectively formed in one region and second area, wire-grid layer 15 polarizes 13 shape of area first
At the first grizzly bar 131, it is formed with the second grizzly bar 141 in the second polarization area 14, the first grizzly bar 131 and the second grizzly bar 141 mutually hang down
Directly.In the present embodiment, the wire-grid layer 15 on the strip projected parts and strip projected parts of substrate 12 is removed by the way of solution-off.
Fig. 3 is the flow diagram of the light alignment method of first embodiment of the invention.As shown in figure 3, the present invention first is real
It applies the light alignment method a of example and carries out light orientation using above-mentioned wire grid polarizer 10, the step of light alignment method a includes：
Step S1a provides light alignment apparatus, wire grid polarizer 10 is arranged on light alignment apparatus, wire grid polarizer 10
It is arranged at the light-emitting window of alignment apparatus.In the present embodiment, which includes ultraviolet source, and ultraviolet source is to wiregrating
Polarizing film 10 provides ultraviolet light.
Alignment film is arranged in the lower section of wire grid polarizer 10 step S2a.In the present embodiment, alignment film is arranged in coloured silk
In ilm substrate or array substrate, when orientation, the color membrane substrates or the array substrate were arranged in the lower section of wire grid polarizer 10.
Step S3a makes incident light pass through wire grid polarizer 10, to generate the different emergent light in polarization direction to alignment film
Different zones carry out light orientation.In the present embodiment, the first polarization area 13 of wire grid polarizer 10 generates a kind of ultraviolet light, and second
Another ultraviolet light in area 14 is polarized, the polarization direction of both ultraviolet lights is mutually perpendicular to.
The light alignment method of the present embodiment carries out light orientation, the first grid of wire grid polarizer 10 using wire grid polarizer 10
Item 131 and the second grizzly bar 141 can generate two kinds of orthogonal ultraviolet lights in polarization direction simultaneously, can disposably give alignment film different
Region defines two orthogonal alignment directions simultaneously, and processing procedure is easy, can save the production time, reduce cost；And it applies
When in the display device that can be switched to visual angle, when switching to peep-proof pattern from wide angle mode, it can be achieved that on upper and lower, left and right directions
Peep-proof, peep-proof angle can reach 45 °, have preferable peep-proof effect.
Second embodiment
Fig. 4 is the structural schematic diagram of the optical filter of second embodiment of the invention.As shown in figure 4, optical filter 20b includes saturating
Bright substrate 12, first polarizes area 13 and second and polarizes area 14.Multiple first polarization areas 13 and multiple the are formed on substrate 12
Two polarization areas 14.
Multiple first polarization areas 13 and multiple second polarizations area 14 are intervally arranged successively, the area etc. in the first polarization area 13
Area in the second polarization area 14, the first polarization area 13 is interior to be equipped with half-wave plate 23b, and the second polarization area 14 is located at adjacent half slide
Region between 23b.A plurality of half-wave plate 23b is arranged on the substrate 12 spaced reciprocally.In the present embodiment, the material of substrate 12
Material for glass, polymethyl methacrylate, half-wave plate 23b is A type polyarylates, A types polyarylate and glass, polymethyl
The light transmittance of sour methyl esters is essentially identical, so the intensity of illumination that three generates is close, can guarantee orientation quality in light orientation.Separately
Outer A types polyarylate is the material of ultraviolet resistance irradiation, increases the service life of optical filter 20b, and reduce production cost.
In the present embodiment, the spacing between two adjacent half-wave plate 23b be equal to subpixel area length or
Width, it is preferable that the spacing between two adjacent half-wave plate 23b is equal to the width of a subpixel area.Half-wave plate 23b's
Width is equal to the spacing between two adjacent half-wave plate 23b.
Fig. 5 is the flow diagram of the production method of the optical filter of second embodiment of the invention.As shown in figure 5, the optical filtering
The step of production method of piece 20b includes：
Step S21 provides transparent substrate 12.
Step S22 forms half-wave lamella on the one side of substrate 12.In the present embodiment, A type polyarylates are coated on
On the one side of substrate 12, that is, half-wave lamella is formed, the thickness of half-wave lamella meets δ (phase difference)=Δ n (refringences
Value) * d (thickness)=λ/2 (2m+1) * [(m=0,1,2,3 ...), λ (wavelength)].
Step S23 is exposed half-wave plate layer using mask, the half slide floor in the second polarization of removal area 14, and the
Spaced half-wave plate 23b is formed in one polarization area 13.In the present embodiment, mask makes according to the size of half-wave plate 23b,
Specific production method about mask please refers to the prior art, and details are not described herein again.Half-wave lamella, will after ultraviolet photoetching
The half-wave lamella of exposed portion removes, you can generates half-wave plate 23b.
In the present embodiment, the optical axis of half-wave plate 23b and the polarization direction for the ultraviolet light being radiated on half-wave plate 23b are formed
45 ° of angle.
Fig. 6 is the flow diagram of the light alignment method of second embodiment of the invention.As shown in fig. 6, the light of the present embodiment
The step of orientation is to the step of method b with the light alignment method a of first embodiment is identical, and difference is the light orientation of the present embodiment
Method b carries out light orientation using above-mentioned optical filter 20b.
Specifically, step S1b provides light alignment apparatus, optical filter 20b is arranged on alignment apparatus, optical filter 20b is set
It sets at the light-emitting window of alignment apparatus.In the present embodiment, light alignment apparatus includes a wiregrating that can generate single polarization direction
Optical filter 20b is arranged in the lower section of the wire grid polarizer polarizing film, the wire grid polarizer can make the polarization direction of ultraviolet light with
The optical axis shape of half-wave plate 23b angle at 45 °.
Alignment film is arranged in the lower section of optical filter 20 step S2b.
Step S3b makes incident light pass through optical filter 20b, to generate the different emergent light in polarization direction to alignment film not
Light orientation is carried out with region.In the present embodiment, alignment film is made of light alignment materials, the alignment direction that alignment film generates and purple
The polarization direction of outer light is vertical.
In the present embodiment, the operation principle of half-wave plate 23b is：Half-wave plate 23b makes the polarization direction of ultraviolet light change
Become, if the optical axis direction angle of the polarization direction of incident uv and half-wave plate 23b are θ, is emitted the polarization direction of ultraviolet light
Opposite incident light deflects 2 θ.
The light alignment method of the present embodiment carries out light orientation using optical filter 20b, and the half-wave plate 23b of optical filter 20b can make
The polarization direction of some ultraviolet lights deflects 90 °, other ultraviolet lights pass through base directly from the spacing between each half-wave plate 23b
Plate 12, substrate 12 do not change its polarization direction, realize disposably to alignment film different zones and meanwhile define two be mutually perpendicular to
Alignment direction, processing procedure is easy, can save the production time, reduce cost；And it is applied in the changeable display device in visual angle
When, it can be achieved that upper and lower, left and right directions peep-proof, peep-proof angle can reach when switching to peep-proof pattern from wide angle mode
45 °, there is preferable peep-proof effect.
3rd embodiment
Fig. 7 is the structural schematic diagram of the optical filter of third embodiment of the invention.As shown in fig. 7, the optical filter of the present embodiment
20c is consistent with the structure of optical filter 20b of second embodiment, and difference is that the material of the half-wave plate 23c of the present embodiment is mica
Crystal or quartz crystal, it is preferable that the material of half-wave plate 23c is mica crystal.
In the present embodiment, the light transmittance between mica crystal and substrate 12 is essentially identical, so the illumination that the two generates
Intensity is close, and when light orientation can ensure orientation quality.The birefringent characteristic of mica crystal is with temperature, the variation phase of wavelength simultaneously
There is higher transmittance to relatively stable, and for ultraviolet light, therefore mica crystal can reduce extraneous factor to light orientation
Influence, it is also ensured that orientation quality.In addition mica crystal is more resistant to ultraviolet light, and the service life is longer.
Fig. 8 is the flow diagram of the production method of the optical filter of third embodiment of the invention.As shown in figure 8, the optical filtering
The making step of piece 20c includes：
Step S31 makes monoblock half-wave plate 23c.In the present embodiment, mica crystal is prepared by czochralski method, prepared
After crystal, then the optical axis of crystal is revised, the folder for keeping optical axis at 45 ° with the polarization direction shape for the ultraviolet light being radiated on mica crystal
Angle.
Monoblock half-wave plate 23c is divided into polylith half-wave plate 23c by step S32.In the present embodiment, cutting accuracy is utilized
Higher laser cuts mica crystal, can reduce influence of the cutting error to light orientation, and then improve orientation quality.
Step S33 provides transparent substrate 12.
The a plurality of half-wave plate 23c separated is arranged on the one side of substrate 12 step S34 spaced reciprocally, is formed
First polarization area 13.In the present embodiment, the spacing between two adjacent mica crystals is equal to the length of a subpixel area
Degree or width, it is preferable that the spacing between two adjacent mica crystals is equal to the width of a subpixel area, mica crystal
Width be equal to two adjacent mica crystals between spacing.
The step of light alignment method c of the present embodiment is with the light alignment method b of second embodiment is consistent, and difference is this reality
The material for applying the optical filter 20c of the light alignment method c of example is mica crystal, i.e., the material of the half-wave plate 23c of the present embodiment is cloud
Mother crystal can reach effect same as the half-wave plate 23b of second embodiment when carrying out light orientation.
Multiple first polarizations area 13 and second that the wire grid polarizer 10 of the present invention includes polarizes area 14, the first polarization area 13
With second polarization area 14 in the first grizzly bar 131 and the second grizzly bar 141 can generate two kinds of orthogonal ultraviolet lights in polarization direction；
A plurality of half-wave plate 23b, 23c of optical filter 20b, 20c of the present invention can make 90 ° of the polarization direction deflection of some ultraviolet lights, another
A little ultraviolet lights pass through from the spacing between each half-wave plate 23b, 23c, and polarization direction is constant.Therefore, light orientation side of the invention
Method a, b, c are to carry out light orientation using above-mentioned wire grid polarizer 10, optical filter 20b, 20c, realize disposably to orientation
Film different zones define two orthogonal alignment directions simultaneously, and processing procedure is easy, can save the production time, reduce at
This.
Moreover, when the light alignment method a, b, c are applied in the changeable display device in visual angle, in peep-proof pattern, liquid
The light leakage position of brilliant molecule is increased, and then contrast declines, and to realize peep-proof up and down, on left and right directions, is had preferable
Peep-proof effect.
In addition, for positivity liquid crystal or negative liquid crystal, light alignment method a, b, c of the invention can carry out orientation to it,
Even if the arragement direction of positive liquid crystal molecules or negative liquid crystal molecule is mutually perpendicular to.
The preferred embodiment of the present invention is described in detail above in association with attached drawing, but the present invention is not limited to above-mentioned implementations
Detail in mode can carry out technical scheme of the present invention a variety of simple within the scope of the technical concept of the present invention
Modification, these simple variants all belong to the scope of protection of the present invention.It is as described in the above specific embodiments each specific
Technical characteristic can be combined by any suitable means in the case of no contradiction.In order to avoid unnecessary heavy
Multiple, the present invention no longer separately illustrates various combinations of possible ways.
Claims (10)
1. a kind of wire grid polarizer, which is characterized in that the wire grid polarizer (10) includes transparent substrate (12) and is set to substrate
(12) wire-grid layer (15) on, the wire-grid layer (15) are formed with multiple first polarizations area (13) and multiple the on the substrate (12)
Two polarizations area (14), multiple first polarizations area (13) and multiple second polarizations area (14) are intervally arranged successively, this is first inclined
Shake area (13) and interior first grizzly bar (131) and the second grizzly bar for being respectively equipped with a plurality of spaced setting of the second polarization area (14)
(141), first grizzly bar (131) and second grizzly bar (141) are mutually perpendicular to.
2. wire grid polarizer as described in claim 1, which is characterized in that this first polarization area (13) area be equal to this second
Polarize the area of area (14).
3. wire grid polarizer as claimed in claim 2, which is characterized in that the spacing between adjacent first grizzly bar (131)
Spacing between adjacent second grizzly bar (141) is equal, the length of first grizzly bar (131) and second grizzly bar (141)
Equal length, the width of first grizzly bar (131) is equal with the width of second grizzly bar (141).
4. a kind of production method of wire grid polarizer as described in claims 1 to 3 any one, which is characterized in that the wiregrating
The production method of polarizing film (10) includes the following steps：
Substrate is provided；
The substrate (12) is heated, the first area of the substrate (12) is respectively pressed by the first compression module and the second compression module
And second area, and multiple strip projected parts are respectively formed in the first area of the substrate (12) and second area, the first area
It is vertical with the strip projected parts of the second area, form groove between two strip projected parts, multiple first areas and it is multiple should
Second area is intervally arranged successively；
Form wire-grid layer (15) on the substrate (12), the wire-grid layer (15) be covered on the strip projected parts and the groove in；With
And
Remove the substrate, the strip projected parts of the substrate (12) and the wire-grid layer (15) on the strip projected parts, to it is corresponding this
One region and the second area are respectively formed first polarization area (13) and second polarization area (14), and the wire-grid layer (15) is at this
First polarization area (13) is formed with the first grizzly bar (131), is formed with the second grizzly bar (141) in second polarization area (14), this
One grizzly bar (131) and second grizzly bar (141) are mutually perpendicular to.
5. a kind of optical filter, which is characterized in that the optical filter includes transparent substrate (12), is formed on the substrate (12) multiple
First polarization area (13) and multiple second polarizations area (14), multiple first polarizations area (13) and multiple second polarizations area (14)
It is intervally arranged successively, interior half-wave plate is equipped in first polarization area (13), which is located at adjacent half glass
Region between piece.
6. optical filter as claimed in claim 5, which is characterized in that the area of first polarization area (13) is equal to second polarization
The area in area (14).
7. a kind of production method of such as optical filter described in claim 5 or 6, which is characterized in that the making step of the optical filter
Including：
Transparent substrate (12) is provided；
Half-wave lamella is formed on the one side of the substrate (12)；
The half-wave lamella is exposed using mask, remove this second polarization area (14) half slide floor, and this first partially
Shaking, area (13) is interior to form the spaced half-wave plate.
8. a kind of production method of optical filter, which is characterized in that the optical filter includes the half-wave plate described in claim 7, the filter
The making step of mating plate includes：
Make monoblock half-wave plate；
By monoblock, the half-wave plate is divided into polylith half-wave plate；
Transparent substrate (12) is provided；And
A plurality of half-wave plate separated is arranged spaced reciprocally on the one side of the substrate (12), first polarization is formed
Area (13).
9. a kind of smooth alignment method, which is characterized in that use the wire grid polarizer (10) described in 3 any one of claims 1 to 3
Light orientation is carried out, the step of light alignment method includes：
Light alignment apparatus is provided, which is arranged on the alignment apparatus, the wire grid polarizer (10) setting
At the light-emitting window of the alignment apparatus；And
Alignment film is arranged in the lower section of the wire grid polarizer (10)；
Incident light is set to pass through the wire grid polarizer (10), to generate not same district of the different emergent light in polarization direction to the alignment film
Domain carries out light orientation.
10. a kind of smooth alignment method, which is characterized in that carry out light orientation, the light using the optical filter described in claim 5 or 6
The step of alignment method includes：
Light alignment apparatus is provided, which is arranged on the alignment apparatus, which is arranged going out in the alignment apparatus
At optical port；And
Alignment film is arranged in the lower section of the optical filter；
So that incident light is passed through the optical filter, light is carried out to the different zones of the alignment film to generate the different emergent light in polarization direction
Orientation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810362800.6A CN108594346A (en) | 2018-04-20 | 2018-04-20 | Wire grid polarizer, the production method of wire grid polarizer, optical filter, the production method of optical filter and light alignment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810362800.6A CN108594346A (en) | 2018-04-20 | 2018-04-20 | Wire grid polarizer, the production method of wire grid polarizer, optical filter, the production method of optical filter and light alignment method |
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| Publication Number | Publication Date |
|---|---|
| CN108594346A true CN108594346A (en) | 2018-09-28 |
Family
ID=63613824
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810362800.6A Pending CN108594346A (en) | 2018-04-20 | 2018-04-20 | Wire grid polarizer, the production method of wire grid polarizer, optical filter, the production method of optical filter and light alignment method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113568083A (en) * | 2021-07-05 | 2021-10-29 | 深圳市华星光电半导体显示技术有限公司 | Metal wire grating polaroid and light detection equipment |
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| KR20110062599A (en) * | 2009-12-03 | 2011-06-10 | 엘지디스플레이 주식회사 | Light aligning method of an alignment layer for display device |
| US20160026034A1 (en) * | 2014-07-28 | 2016-01-28 | Samsung Display Co., Ltd. | Polarizer and display panel having the same |
| CN105467500A (en) * | 2016-02-02 | 2016-04-06 | 京东方科技集团股份有限公司 | Wire grid polarizer, manufacturing method and display device |
| CN105892157A (en) * | 2016-06-07 | 2016-08-24 | 深圳市华星光电技术有限公司 | Method for conducting optical alignment on liquid crystal display panel and photomask |
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| KR20110062599A (en) * | 2009-12-03 | 2011-06-10 | 엘지디스플레이 주식회사 | Light aligning method of an alignment layer for display device |
| US20160026034A1 (en) * | 2014-07-28 | 2016-01-28 | Samsung Display Co., Ltd. | Polarizer and display panel having the same |
| CN105467500A (en) * | 2016-02-02 | 2016-04-06 | 京东方科技集团股份有限公司 | Wire grid polarizer, manufacturing method and display device |
| CN105892157A (en) * | 2016-06-07 | 2016-08-24 | 深圳市华星光电技术有限公司 | Method for conducting optical alignment on liquid crystal display panel and photomask |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113568083A (en) * | 2021-07-05 | 2021-10-29 | 深圳市华星光电半导体显示技术有限公司 | Metal wire grating polaroid and light detection equipment |
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Address after: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Applicant after: Kunshan Longteng Au Optronics Co Address before: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Applicant before: Kunshan Longteng Optronics Co., Ltd. |
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Application publication date: 20180928 |