CN105974644A - Liquid crystal display - Google Patents
Liquid crystal display Download PDFInfo
- Publication number
- CN105974644A CN105974644A CN201610554407.8A CN201610554407A CN105974644A CN 105974644 A CN105974644 A CN 105974644A CN 201610554407 A CN201610554407 A CN 201610554407A CN 105974644 A CN105974644 A CN 105974644A
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- China
- Prior art keywords
- polaroid
- crystal display
- liquid crystal
- wiregrating
- described upper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- G02F1/133528—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
- G02F1/133528—Polarisers
- G02F1/133548—Wire-grid polarisers
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Polarising Elements (AREA)
Abstract
The invention provides a liquid crystal display. An upper polaroid (3) and a lower polaroid (4) of the liquid crystal display are sub-wavelength nano wire gating polaroids. At least one of wiring gating structures and wire gating materials of both the upper polaroid (3) and the lower polaroid (4) is different, so that wavelengths of light penetrating the upper polaroid (3) and the lower polaroid (4) can compensate for each other, the wave length dependency problem of the sub-wavelength nano wire gating polaroids in liquid crystal display application is solved, the overall transmittance and brightness uniformity of the liquid crystal display are improved, and the display quality is improved.
Description
Technical field
The present invention relates to Display Technique field, particularly relate to a kind of liquid crystal display.
Background technology
Nano impression (Nano-imprint Lithography, NIL) technological break-through conventional lithography is in feature
A difficult problem in size reduction process, has the high and low cost of resolution, the feature of high yield.From nineteen ninety-five
Since proposition, nano impression has developed out multiple stamping technique, be widely used in semiconductor manufacturing,
MEMS (Microelectromechanical Systems, MEMS), biochip, biological doctor
Etc. field.The basic thought of NIL technology is by masterplate, is transferred to by figure on corresponding substrate, turns
The medium moved is typically one layer of polymeric film the thinnest, makes its structure hard by the method such as hot pressing or irradiation
Change thus retain the figure of transfer.Whole process includes that impressing and figure shift two processes.According to pressure
The difference of impression method, NIL can be divided mainly into thermoplastic (Hot embossing), ultraviolet (UV) solidification with micro-
Contact (Micro contact printing, uCP) three kinds of photoetching techniques.
For needing to use all kinds of devices of polaroid, such as LCD, OLED etc., traditional polaroid is
Being combined by multilayer film, the most most crucial part is polarizing layer, usually containing having polarisation work
Polyvinyl alcohol (PVA) layer of iodine molecule, next to that lay respectively at the protective layer of polarizing layer both sides,
Generally transparent Triafol T (TAC) layer, primarily to maintain polarisation in polarizing layer
Be stretched state, it is to avoid the loss of the sub-moisture of polarisation, protects it from ectocine, and this polaroid passes through
Two produce polarized light to the Absorption of iodine molecule.
Along with the development of nanometer embossing, people have begun to prepare sub-wavelength grate structure, reach
Polarization to the light of visible wavelength range, so-called sub-wave length grating refer to screen periods be much smaller than into
Penetrating the grating of optical wavelength, sub-wavelength grate structure is for transverse magnetic field (Transverse Magnetic, TM)
With transverse electric field (Transverse Electric, TE) state light field, there is the highest extinction ratio, it is possible to notable
Ground through be perpendicular to the TM light of metal wire orientation and reflected parallel in the TE light of metal wire orientation,
It can be used as the polaroid structure of high permeability.Sub-wavelength wiregrating polaroid is compared to tradition
Polaroid there is the advantage of high permeability and high-contrast, but it is when being applied in liquid crystal display
The problem that there is wavelength dependency.
Summary of the invention
It is an object of the invention to provide a kind of liquid crystal display, it is possible to improve sub-wavelength wiregrating polaroid at liquid
Wavelength dependency sex chromosome mosaicism in crystal display application, improves the utilization rate of light, promotes the display of liquid crystal display
Effect.
For achieving the above object, the invention provides a kind of liquid crystal display, including: upper substrate is with described
Infrabasal plate that upper substrate is oppositely arranged, be located at the upper polaroid of the side of described upper substrate and be located at described under
The lower polaroid of the side of substrate；
Described upper polaroid and lower polaroid are sub-wavelength nanometer wiregrating polaroid, and described upper polaroid
With in the wire grid construction of lower polaroid and wire grid material at least one different.
Described wire grid construction is defined by grid parameters, and described grid parameters includes: wiregrating cycle, wiregrating
Width and wiregrating height.
The wire grid material of described upper polaroid and lower polaroid is metal or metal-oxide.
The wire grid material of described upper polaroid and lower polaroid is aluminum, silver or gold.
Described upper polaroid is different from the wiregrating cycle of lower polaroid.
Described upper polaroid is different from the wiregrating width of lower polaroid.
Described upper polaroid is different from the wiregrating height of lower polaroid.
Described upper polaroid is the most different with the wiregrating cycle from the wire grid material of lower polaroid.
Described upper polaroid and lower polaroid use nano-imprint process or photoetching process to make.
The transmitance of the light that described upper polaroid is the longest to wavelength is the highest, and described lower polaroid is the shortest to wavelength
The transmitance of light the highest.
Beneficial effects of the present invention: the invention provides a kind of liquid crystal display, described liquid crystal display upper
Polaroid and lower polaroid are sub-wavelength nanometer wiregrating polaroid, and the line of upper polaroid and lower polaroid
In grid structure and wire grid material at least one be different so that through upper polaroid and lower polaroid
The wavelength of light can mutually compensate for, thus improves sub-wavelength wiregrating polaroid in liquid crystal display applications
Wavelength dependency sex chromosome mosaicism, improves overall penetrance and the brightness uniformity of liquid crystal display, promotes display quality.
Accompanying drawing explanation
In order to be able to be further understood that inventive feature and technology contents, refer to below in connection with the present invention
Detailed description and accompanying drawing, but accompanying drawing only provide with reference to and explanation use, not be used for the present invention is limited
System.
In accompanying drawing,
Fig. 1 is the schematic diagram of the first embodiment of the liquid crystal display of the present invention；
Fig. 2 is the schematic diagram of the second embodiment of the liquid crystal display of the present invention；
Fig. 3 is the transmitance graph of relation with wavelength of light of the liquid crystal display of the present invention.
Detailed description of the invention
By further illustrating the technological means and effect thereof that the present invention taked, below in conjunction with the present invention's
Preferred embodiment and accompanying drawing thereof are described in detail.
Referring to Fig. 1, the present invention provides a kind of liquid crystal display, including: upper substrate 1 and described upper substrate
Infrabasal plate 2 that 1 is oppositely arranged, it is located at the upper polaroid 3 of the side of described upper substrate 1 and is located at described lower base
The lower polaroid 4 of the side of plate 2；
Wherein, described upper polaroid 3 and lower polaroid 4 are sub-wavelength nanometer wiregrating polaroid, and described
Upper polaroid 3 and the wire grid construction of lower polaroid 4 with in wire grid material at least one different.
Specifically, sub-wavelength nanometer wiregrating polaroid is used to be re-used by the light of reflection, fully
Utilize incident illumination, and ensure the uniformity of color and brightness.
Specifically, the polarized light property of sub-wavelength nanometer wiregrating polaroid is to be determined by wire grid material and wire grid construction
, described wire grid construction is defined by grid parameters, and described grid parameters includes: wiregrating width
(linewidth), the wiregrating degree of depth (depth) and the wiregrating cycle (pitch).Different wire grid construction with not
Same wire grid material enables to sub-wavelength nanometer wiregrating polaroid and produces different wavelength dependency.
It is to say, by change described upper polaroid 3 and the wiregrating cycle of lower polaroid 4, wiregrating width,
Wiregrating height and wire grid material, can adjust polaroid 3 and lower polaroid 4 to the light of different wave length
Transmitance so that the wavelength through upper polaroid 3 and the light of lower polaroid 4 can mutually compensate for, thus changes
Kind sub-wavelength wiregrating polaroid wavelength dependency sex chromosome mosaicism in liquid crystal display applications, improves liquid crystal display
Overall penetrance and brightness uniformity, promote display quality.
Specifically, the difference of described upper polaroid 3 and lower polaroid 4 can be wiregrating cycle difference, wiregrating width
The combination of one or more in degree difference, wiregrating height difference and wire grid material difference.
Further, such as, as it is shown on figure 3, upper polaroid 3 and lower polarisation can be adjusted by said method
The wire grid construction parameter of sheet 4 and wire grid material so that passing through of the light that described upper polaroid 3 is the longest to wavelength
Rate is the highest, and the transmitance of the light that described lower polaroid 4 is the shortest to wavelength is the highest, so that liquid crystal display
The transmitance to the light of various different wave lengths of device is the most stable, improves the overall penetrance of liquid crystal display
And brightness uniformity, promote display quality.It is of course also possible to make described lower polaroid 4 the longest to wavelength
The transmitance of light the highest, the transmitance of the light that described upper polaroid 3 is the shortest to wavelength is the highest, equally
Can reach so that the transmitance to the light of various different wave lengths of liquid crystal display is the most stable, improve liquid
The overall penetrance of crystal display and brightness uniformity, promote the purpose of display quality.
Compared with prior art, it is the material from sub-wavelength nanometer wiregrating polaroid self and knot due to the present invention
Solve its wavelength dependency sex chromosome mosaicism on structure, and traditional macromolecule membrane polaroid increases multilayer optical compensation
Film solves wavelength dependency sex chromosome mosaicism and compares, it is not necessary to extra increase film layer, does not increase liquid crystal display thickness,
And the operability of the own material of sub-wavelength nanometer wiregrating polaroid and structure regulation is higher, and cost is more
Low, and adjustable scope is more extensive.
Alternatively, as it is shown in figure 1, in the first embodiment of the present invention, described upper polaroid 3 and lower polarisation
Sheet 4 is built-in, is respectively arranged on described upper substrate 1 near the side of described infrabasal plate 2 and described infrabasal plate 2
Near the side of upper substrate 1, and upper polaroid 3 is equal with the wiregrating cycle of lower polaroid 4 and wiregrating width
Differ.
Alternatively, as in figure 2 it is shown, in the second embodiment of the present invention, described upper polaroid 3 is built-in,
Described lower polaroid 4 is external, namely described upper polaroid 3 is located at described upper substrate 1 near described lower base
The side of plate 2, described lower polaroid 4 is located at the described infrabasal plate 2 side away from upper substrate 1, and upper polarisation
Sheet 3 all differs with wiregrating cycle and the wiregrating width of lower polaroid 4.
Additionally, in other embodiments of the invention, it is also possible to described upper polaroid 3 is located at described upper base
Plate 1 is away from the side of described infrabasal plate 2, and described lower polaroid 4 is located at described infrabasal plate 2 away from upper substrate
The side of 1, or described upper polaroid 3 is located at the described upper substrate 1 side away from described infrabasal plate 2, institute
State lower polaroid 4 and be located at described infrabasal plate 2 near the side of upper substrate 1.
Specifically, the cross sectional shape of the nano wire that described upper polaroid 3 and lower polaroid 4 use is not limited to long
Square, it is also possible to for other variously-shaped cross sections such as circle or nucleocapsid structures.
Preferably, the wire grid material of described upper polaroid 3 and lower polaroid 4 can be metal, as aluminum, silver,
Or gold etc., it is also possible to for other wire grid material such as the metal-oxide of wiregrating polarization effect can be realized.
In making, described upper polaroid 3 and lower polaroid 4 are preferably made by nano-imprint process, in order to
In volume production and cost control, naturally it is also possible to use such as photoetching process in other interior manufacture method systems
Make.
In sum, the invention provides a kind of liquid crystal display, the upper polaroid of described liquid crystal display
It is sub-wavelength nanometer wiregrating polaroid, and the wiregrating knot of upper polaroid and lower polaroid with lower polaroid
In structure and wire grid material at least one be different so that through the light of upper polaroid and lower polaroid
The wavelength of line can mutually compensate for, thus improves sub-wavelength wiregrating polaroid in liquid crystal display applications
Wavelength dependency sex chromosome mosaicism, improves overall penetrance and the brightness uniformity of liquid crystal display, promotes display product
Matter.
The above, for the person of ordinary skill of the art, can be according to the technical side of the present invention
Other various corresponding changes and deformation are made in case and technology design, and all these change and deformation are all answered
Belong to the protection domain of the claims in the present invention.
Claims (10)
1. a liquid crystal display, it is characterised in that including: upper substrate (1) and described upper substrate (1)
The infrabasal plate (2) that is oppositely arranged, the upper polaroid (3) of the side being located at described upper substrate (1) and set
Lower polaroid (4) in the side of described infrabasal plate (2)；
Described upper polaroid (3) and lower polaroid (4) are sub-wavelength nanometer wiregrating polaroid, and institute
State polaroid (3) and the wire grid construction of lower polaroid (4) with in wire grid material at least one different.
2. liquid crystal display as claimed in claim 1, it is characterised in that described wire grid construction passes through wiregrating
Parameter defines, and described grid parameters includes: wiregrating cycle, wiregrating width and wiregrating height.
3. liquid crystal display as claimed in claim 1, it is characterised in that described upper polaroid (3) and
The wire grid material of lower polaroid (4) is metal or metal-oxide.
4. liquid crystal display as claimed in claim 3, it is characterised in that described upper polaroid (3) and
The wire grid material of lower polaroid (4) is aluminum, silver or gold.
5. liquid crystal display as claimed in claim 2, it is characterised in that described upper polaroid (3) with
The wiregrating cycle of lower polaroid (4) is different.
6. liquid crystal display as claimed in claim 2, it is characterised in that described upper polaroid (3) with
The wiregrating width of lower polaroid (4) is different.
7. liquid crystal display as claimed in claim 2, it is characterised in that described upper polaroid (3) with
The wiregrating height of lower polaroid (4) is different.
8. liquid crystal display as claimed in claim 2, it is characterised in that described upper polaroid (3) with
The wire grid material of lower polaroid (4) is the most different from the wiregrating cycle.
9. liquid crystal display as claimed in claim 1, it is characterised in that described upper polaroid (3) and
Lower polaroid (4) uses nano-imprint process or photoetching process to make.
10. liquid crystal display as claimed in claim 1, it is characterised in that described upper polaroid (3) is right
The transmitance of the light that wavelength is the longest is the highest, passing through of the light that described lower polaroid (4) is the shortest to wavelength
Rate is the highest.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610554407.8A CN105974644B (en) | 2016-07-13 | 2016-07-13 | Liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610554407.8A CN105974644B (en) | 2016-07-13 | 2016-07-13 | Liquid crystal display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105974644A true CN105974644A (en) | 2016-09-28 |
| CN105974644B CN105974644B (en) | 2019-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610554407.8A Active CN105974644B (en) | 2016-07-13 | 2016-07-13 | Liquid crystal display |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108241187A (en) * | 2016-12-23 | 2018-07-03 | 苏州星烁纳米科技有限公司 | Quantum dot polaroid, liquid crystal display panel and liquid crystal display device |
| CN109212812A (en) * | 2017-07-04 | 2019-01-15 | 京东方科技集团股份有限公司 | Display panel and preparation method thereof, display system |
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| US20060103778A1 (en) * | 2001-08-24 | 2006-05-18 | Asahi Glass Company Limited | Multi-layer diffraction type polarizer and liquid crystal element |
| CN101055329A (en) * | 2006-04-13 | 2007-10-17 | E.I.内穆尔杜邦公司 | Wire-grid polarizers, methods of fabrication thereof and their use in transmissive displays |
| US20070285598A1 (en) * | 2006-06-09 | 2007-12-13 | In-Sun Hwang | Polarizing plate, method of manufacturing the same and display panel having the same |
| CN101688938A (en) * | 2007-06-22 | 2010-03-31 | 莫克斯泰克公司 | selectively absorptive wire-grid polarizer |
| CN102636897A (en) * | 2011-02-14 | 2012-08-15 | 三星电子株式会社 | Display panel |
| CN105404049A (en) * | 2016-01-04 | 2016-03-16 | 京东方科技集团股份有限公司 | Liquid crystal display and display device |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060103778A1 (en) * | 2001-08-24 | 2006-05-18 | Asahi Glass Company Limited | Multi-layer diffraction type polarizer and liquid crystal element |
| CN101055329A (en) * | 2006-04-13 | 2007-10-17 | E.I.内穆尔杜邦公司 | Wire-grid polarizers, methods of fabrication thereof and their use in transmissive displays |
| US20070285598A1 (en) * | 2006-06-09 | 2007-12-13 | In-Sun Hwang | Polarizing plate, method of manufacturing the same and display panel having the same |
| CN101688938A (en) * | 2007-06-22 | 2010-03-31 | 莫克斯泰克公司 | selectively absorptive wire-grid polarizer |
| CN102636897A (en) * | 2011-02-14 | 2012-08-15 | 三星电子株式会社 | Display panel |
| CN105404049A (en) * | 2016-01-04 | 2016-03-16 | 京东方科技集团股份有限公司 | Liquid crystal display and display device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108241187A (en) * | 2016-12-23 | 2018-07-03 | 苏州星烁纳米科技有限公司 | Quantum dot polaroid, liquid crystal display panel and liquid crystal display device |
| CN108241187B (en) * | 2016-12-23 | 2024-03-15 | 苏州星烁纳米科技有限公司 | Quantum dot polaroid, liquid crystal panel and liquid crystal display device |
| CN109212812A (en) * | 2017-07-04 | 2019-01-15 | 京东方科技集团股份有限公司 | Display panel and preparation method thereof, display system |
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| Publication number | Publication date |
|---|---|
| CN105974644B (en) | 2019-04-30 |
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