CN106249337B - Wire grating polaroid and liquid crystal display device - Google Patents
Wire grating polaroid and liquid crystal display device Download PDFInfo
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- CN106249337B CN106249337B CN201610639062.6A CN201610639062A CN106249337B CN 106249337 B CN106249337 B CN 106249337B CN 201610639062 A CN201610639062 A CN 201610639062A CN 106249337 B CN106249337 B CN 106249337B
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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
- G02F1/133528—Polarisers
- G02F1/133536—Reflective polarizers
Abstract
The present invention provides a kind of wire grating polaroid and liquid crystal display device.Wire grating polaroid of the invention, for the region that passes through of the incident light of different colours, the different wiregrating periods is set, compared with the wire grating polaroid with the single wiregrating period, it is ensured that reach optimal polarization effect when the incident light of different colours passes through wire grating polaroid at the same time.Liquid crystal display device of the invention, the wire grating polaroid with the single wiregrating period is replaced by using the wire grating polaroid with a variety of wiregrating periods, it can guarantee that the incident light of the pixel region of different colours reaches optimal polarization effect when passing through wire grating polaroid, to improve the display quality of display device.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of wire grating polaroids and liquid crystal display device.
Background technique
With the development of science and technology and social progress, people for information interchange and transmitting etc. degree of dependence increasingly
Increase, and display device especially liquid crystal display device (LCD, Liquid Crystal Display) is used as information exchange and biography
The main carriers and material base passed have become more and more people's focus of attention, and are widely used in work and life
Every aspect.
The working principle of liquid crystal display device is the birefringence using liquid crystal, and the rotation of liquid crystal is controlled by voltage,
It rotates the linearly polarized light after down polaroid therewith, is penetrated from upper polaroid (vertical with the polarization direction of down polaroid)
Out, so that upper and lower polaroid plays the role of photoswitch (or light valve) plus liquid crystal cell.The light of backlight outgoing can be decomposed into
The vertically light component of (p) and parallel (s) down polaroid absorption axiss, wherein the light (s) for being parallel to absorption axiss is absorbed by down polaroid,
Down polaroid is passed through perpendicular to the light (p) of absorption axiss, the rotation of liquid crystal is controlled by voltage, makes the linear polarization by down polaroid
Light (p) rotates therewith, then passes through from upper polaroid, and the light (s) for being parallel to absorption axis direction is absorbed.Due to upper and lower
The transmitance of polaroid is respectively 38%~48%, so that the whole light transmission rate of liquid crystal display device is greatly reduced,
Brightness, contrast and transmitance of liquid crystal display device etc. require under higher and higher trend, and traditional absorption-type polaroid is not
Incident light can be made full use of, light utilization efficiency is greatly had lost, and has increased considerably the energy consumption of backlight.In addition, existing iodine
The production of molecule or dyestuff system polaroid needs multilayer resist etc., and liquid crystal display device integral thickness is not only caused to increase,
Cost improves, and reliability is poor, and the above variety of problems makes traditional absorption-type polaroid in the following energy conservation and is thinned, outdoor
The application of the liquid crystal display devices display fields such as display is significantly limited.
Compared with traditional absorption-type polaroid, wire grating polaroid can be through polarization direction perpendicular to wiregrating direction
Incident light, and polarization direction is parallel to the reflection of generation incident light in wiregrating direction, by increasing anti-reflection layer etc., nanometer wiregrating is inclined
Mating plate is far longer than traditional absorption-type polaroid through the ability of incident light, and transmitance is up to 90% or more, and contrast
There is the height of 10000:1, it is very big to meet nowadays so as to increase substantially the light transmission rate and contrast of liquid crystal display device
The market demand of high transmittance and high contrast liquid crystal display device.In addition, since wire grating polaroid can be in high temperature or height
Brilliant durability is realized in humidity environment, so wire grating polaroid waits reliabilities that harsh field is required to have outdoors
Incomparable advantage.
Since wire grating polaroid generates plasmon of the basic principle from metal surface of polarised light
Model, if therefore when making wire grating polaroid be used only single wavelength go to simulate the wiregrating period being most preferably adapted to, that
The obtained wiregrating period will be a particular value, and the wire grating polaroid with the single wiregrating period is simultaneously to a variety of different waves
When long light carries out polarization manipulation, obtained polarization effect is a compromise, can not reach best for the light of every kind of wavelength
Polarization effect.Although the polarization effect that the wire grating polaroid of single screen periods generates may be used for general display
To meet general consumption demand, but with the prosperity of high contrast (High Contrast Ratio), consumer is for higher
The pursuit of contrast is so that the wire grating polaroid of single screen periods needs to be improved.
Summary of the invention
The purpose of the present invention is to provide a kind of wire grating polaroids, have a variety of different wiregrating periods, it is ensured that
Reach optimal polarization effect when the incident light of different colours passes through at the same time.
The object of the invention is also to provide a kind of liquid crystal display devices, it is ensured that the incidence of the pixel region of different colours
Light reaches optimal polarization effect when passing through wire grating polaroid, to improve the display quality of display device.
To achieve the above object, it present invention firstly provides a kind of wire grating polaroid, including substrate and is set to described
Metal wire grid layer on substrate;
The metal wire grid layer includes several wiregrating units in array distribution, and each wiregrating unit includes arranged in parallel
Several metal strips and several strip grooves between several metal strips, in the same wiregrating unit, the width of several metal strips
Spend it is identical, several strip grooves it is of same size;
The wire grating polaroid is used to carry out the incident lights of a variety of different colours simultaneously polarization manipulation, and it is described not
Incident light with color is passed through from different wiregrating units respectively, in the wiregrating unit of the incident light of corresponding different colours, gold
The width for belonging to item is different from the summation of the width of strip groove.
In the wiregrating unit of the incident light of corresponding different colours, metal strip it is of same size, strip groove it is of different size.
The wire grating polaroid is used to carry out polarization manipulation simultaneously to red, green and blue incident light, right respectively
In the wiregrating unit for answering red, green and blue incident light, of same size, the wiregrating list of corresponding Red incident light of metal strip
The width of the strip groove of member is greater than the width of the strip groove of the wiregrating unit of corresponding green incident light, corresponding green incident light
Wiregrating unit strip groove width be greater than corresponding blue incident light wiregrating unit strip groove width.
In the wiregrating unit of the incident light of corresponding same color, the width and thickness of metal strip are identical, the width of strip groove
It spends identical.
The summation of the width of the width of the metal strip and the strip groove is 20nm-600nm;
The width of the metal strip is 20nm-300nm;The metal strip with a thickness of 50nm-300nm.
The present invention also provides a kind of liquid crystal display devices, including the first substrate and the second substrate and folder being oppositely arranged
Liquid crystal layer between the first substrate and the second substrate;The liquid crystal display device includes several pixel regions, described
Several pixel regions include the pixel region of a variety of different colours;
It further include at least one wire grating polaroid, at least one described wire grating polaroid is set to first base
Intralamellar part, the second substrate are internal, the first substrate is remote towards the outer surface of the liquid crystal layer side, the first substrate
Outer surface, the second substrate from the liquid crystal layer side are towards the outer surface of the liquid crystal layer side and described second
In outer surface of the substrate far from the liquid crystal layer side at least one at position;
The wire grating polaroid includes metal wire grid layer, and the metal wire grid layer includes several lines in array distribution
Grid unit, each wiregrating unit include that several metal strips arranged in parallel and several bar shapeds between several metal strips are recessed
Slot, in the same wiregrating unit, several metal strips it is of same size, several strip grooves it is of same size;
Several wiregrating units in the metal wire grid layer respectively correspond several pixel regions in liquid crystal display device, right
It answers in the wiregrating unit of the pixel region of different colours, the summation of width of width and strip groove of metal strip is different.
In the wiregrating unit of the pixel region of corresponding different colours, metal strip it is of same size, the width of strip groove is not
Together.
The liquid crystal display device includes red pixel area, green pixel area and blue pixel area, corresponding red
In the wiregrating unit of pixel region, green pixel area and blue pixel area, of same size, the corresponding red picture of metal strip
The width of the strip groove of the wiregrating unit in plain region is greater than the width of the strip groove of the wiregrating unit of corresponding green pixel area
Degree, the width of the strip groove of the wiregrating unit of corresponding green pixel area are greater than the wiregrating unit of corresponding blue pixel area
The width of strip groove.
In the wiregrating unit of the pixel region of corresponding same color, the width and thickness of metal strip are identical, strip groove
It is of same size.
The summation of the width of the width of the metal strip and the strip groove is 20nm-600nm;
The width of the metal strip is 20nm-300nm;The metal strip with a thickness of 50nm-300nm.
Beneficial effects of the present invention: a kind of wire grating polaroid provided by the invention, for the incident light of different colours
Pass through region the different wiregrating periods is set, compared with the wire grating polaroid with the single wiregrating period, it is ensured that no
Reach optimal polarization effect when passing through wire grating polaroid at the same time with the incident light of color.One kind provided by the invention
Liquid crystal display device replaces the gold with the single wiregrating period by using the wire grating polaroid with a variety of wiregrating periods
Belong to wiregrating polaroid, it is ensured that the incident light of the pixel region of different colours reaches best when passing through wire grating polaroid
Polarization effect, to improve the display quality of display device.
For further understanding of the features and technical contents of the present invention, it please refers to below in connection with of the invention detailed
Illustrate and attached drawing, however, the drawings only provide reference and explanation, is not intended to limit the present invention.
Detailed description of the invention
With reference to the accompanying drawing, by the way that detailed description of specific embodiments of the present invention, technical solution of the present invention will be made
And other beneficial effects are apparent.
In attached drawing,
Fig. 1 is the structural schematic diagram of an embodiment of wire grating polaroid of the invention;
Fig. 2 is the structural schematic diagram of the first embodiment of liquid crystal display device of the invention;
Fig. 3 is the structural schematic diagram of the second embodiment of liquid crystal display device of the invention;
Fig. 4 is the structural schematic diagram of the 3rd embodiment of liquid crystal display device of the invention.
Specific embodiment
Further to illustrate technological means and its effect adopted by the present invention, below in conjunction with preferred implementation of the invention
Example and its attached drawing are described in detail.
The parameter of the usually polarization effect of evaluation wire grating polaroid includes polarization direction entering perpendicular to wiregrating direction
The penetrance and polarization direction of penetrating light are parallel to the penetrance of the incident light in wiregrating direction, and polarization direction is perpendicular to wiregrating direction
Incident light penetrance it is higher, the penetrance that polarization direction is parallel to the incident light in wiregrating direction is lower, then it is assumed that metal wire
The polarization effect of grid polaroid is better.
Since the wavelength for making wire grating polaroid reach the wiregrating period of optimal polarization effect and the incident light of transmission has
Direct relation, therefore difference is arranged to the multiple regions of wire grating polaroid for the incident light of a variety of different wave lengths in the present invention
The wiregrating period, obtain the wire grating polaroid with a variety of wiregrating periods, it is ensured that the incident light of a variety of different wave lengths is same
When can reach optimal polarization effect when passing through.
Referring to Fig. 1, the present invention provides a kind of wire grating polaroid 50, including substrate 10 and it is set to the substrate 10
On metal wire grid layer 20;
The metal wire grid layer 20 includes several wiregrating units 21 in array distribution, and each wiregrating unit 21 includes parallel
The several metal strips 201 and several strip grooves 202 between several metal strips 201 of arrangement, the same wiregrating unit 21
In, several metal strips 201 it is of same size, several strip grooves 202 it is of same size;
The wire grating polaroid 50 is used to carry out polarization manipulation simultaneously to the incident light of a variety of different colours, and described
The incident light of different colours is passed through from different wiregrating units 21 respectively, the wiregrating unit 21 of the incident light of corresponding different colours
In, the width of metal strip 201 and summation (i.e. the wiregrating period) of the width of strip groove 202 are different.
The present invention carries out different settings to the wiregrating period of wiregrating unit 21 according to the incident light of different colours, guarantees every
The incident light of kind color is by can reach optimal polarization effect when corresponding wiregrating unit 21.
Preferably, in the wiregrating unit 21 of the incident light of corresponding different colours, metal strip 201 it is of same size, bar shaped is recessed
Slot 202 it is of different size.
As shown in Figure 1, when the wire grating polaroid 50 is used to carry out red, green and blue incident light simultaneously
When polarization manipulation, in the wiregrating unit 21 that respectively corresponds red, green and blue incident light, metal strip 201 it is of same size,
The width of the strip groove 202 of the wiregrating unit 21 of corresponding Red incident light is greater than the wiregrating unit 21 of corresponding green incident light
The width of strip groove 202, the width of the strip groove 202 of the wiregrating unit 21 of corresponding green incident light are greater than corresponding blue and enter
Penetrate the width of the strip groove 202 of the wiregrating unit 21 of light.This is because red light wavelength is greater than green wavelength, green wavelength is greater than
Blue light wavelength, therefore the period (width and strip groove of metal strip 201 of the wiregrating unit 21 of corresponding red, green, blue incident light
The summation of 202 width) it is sequentially reduced, in the case where the width of metal strip 201 is constant, the width of strip groove 202 is successively
Reduce.
Specifically, the thickness of metal strip 201 is identical or different in the wiregrating unit 21 of the incident light of corresponding different colours.
Preferably, in the wiregrating unit 21 of the incident light of corresponding same color, the width and thickness of metal strip 201 are identical,
Strip groove 202 it is of same size.
Specifically, the width of the metal strip 201 and the summation (i.e. wiregrating period) of the width of the strip groove 202 are
20nm-600nm, preferably 50nm-400nm.
Specifically, the width of the metal strip 201 is 20nm-300nm, preferably 40nm-200nm.
Specifically, the metal strip 201 with a thickness of 50nm-300nm.
Specifically, the material of the metal strip 201 includes at least one in aluminium (Al), chromium (Cr), gold (Au) and nickel (Ni)
Kind.
Specifically, the material of the substrate 10 includes glass, polyimides (PI) and polymethyl methacrylate (PMMA)
At least one of.
Preferably, the wire grating polaroid 50 is prepared using nanometer embossing.
The different wiregrating periods is arranged for the region that passes through of the incident light of different colours in above-mentioned wire grating polaroid,
Compared with the wire grating polaroid with the single wiregrating period, it is ensured that the incident light of different colours passes through metal wire at the same time
Reach optimal polarization effect when grid polaroid.
Please refer to Fig. 2-4, while refering to fig. 1, the present invention also provides a kind of liquid crystal display device, including be oppositely arranged
One substrate 60 and the second substrate 70 and the liquid crystal layer 80 being located between the first substrate 60 and the second substrate 70;It is described
Liquid crystal display device includes several pixel regions, and several pixel regions include the pixel region of a variety of different colours;
It further include at least one wire grating polaroid 50, at least one described wire grating polaroid 50 is set to described the
Internal, the described the second substrate 70 of one substrate 60 is internal, outer surface of the first substrate 60 towards 80 side of liquid crystal layer, institute
Outer surface of the first substrate 60 far from 80 side of liquid crystal layer, the second substrate 70 are stated towards 80 side of liquid crystal layer
In the outer surface of outer surface and the second substrate 70 far from 80 side of liquid crystal layer at least one at position;
The wire grating polaroid 50 includes metal wire grid layer 20, and the metal wire grid layer 20 includes in array distribution
Several wiregrating units 21, each wiregrating unit 21 include several metal strips 201 arranged in parallel and be located at several metal strips 201 it
Between several strip grooves 202, in the same wiregrating unit 21, of same size, several strip grooves of several metal strips 201
202 it is of same size;
Several wiregrating units 21 in the metal wire grid layer 20 respectively correspond several pixel regions in liquid crystal display device
Domain, in the wiregrating unit 21 of the pixel region of corresponding different colours, the width of the width and strip groove 202 of metal strip 201
Summation (i.e. wiregrating period) is different.
Specifically, as shown in Fig. 2, be the first embodiment of liquid crystal display device of the invention, in the first embodiment, institute
Stating liquid crystal display device includes two wire grating polaroids 50, and described two wire grating polaroids 50 are respectively arranged on described the
Outer surface and the second substrate 70 of one substrate 60 far from 80 side of liquid crystal layer are far from 80 side of liquid crystal layer
Outer surface.
Specifically, as shown in figure 3, be the second embodiment of liquid crystal display device of the invention, in the second embodiment, institute
Stating liquid crystal display device includes two wire grating polaroids 50, and described two wire grating polaroids 50 are respectively arranged on described the
One substrate 60 is towards the outer surface of 80 side of liquid crystal layer and the second substrate 70 towards 80 side of liquid crystal layer
Outer surface.
Specifically, as shown in figure 4, be the 3rd embodiment of liquid crystal display device of the invention, in the 3rd embodiment, institute
Stating liquid crystal display device includes two wire grating polaroids 50, and described two wire grating polaroids 50 are respectively arranged on described the
Inside one substrate, 60 inside and the second substrate 70.
The wire grating polaroid 50 that liquid crystal display device of the invention uses, passes through the pixel region according to different colours
Domain carries out different settings to the wiregrating period of wiregrating unit 21, guarantees that the incident light of the pixel region of corresponding each color exists
By can reach optimal polarization effect when corresponding wiregrating unit 21.
Preferably, in the wiregrating unit 21 of the pixel region of corresponding different colours, of same size, the bar shaped of metal strip 201
Groove 202 it is of different size.
It is corresponding when the liquid crystal display device includes red pixel area, green pixel area and blue pixel area
In the wiregrating unit 21 of red pixel area, green pixel area and blue pixel area, metal strip 201 it is of same size, it is right
The width of the strip groove 202 of the wiregrating unit 21 of red pixel area is answered to be greater than the wiregrating unit 21 of corresponding green pixel area
Strip groove 202 width, the width of the strip groove 202 of the wiregrating unit 21 of corresponding green pixel area is greater than corresponding blue
The width of the strip groove 202 of the wiregrating unit 21 in color pixel region.
Specifically, in the wiregrating unit 21 of the pixel region of corresponding different colours, the thickness of metal strip 201 is identical or not
Together.
Preferably, in the wiregrating unit 21 of the pixel region of corresponding same color, the width and thickness phase of metal strip 201
Together, strip groove 202 is of same size.
Specifically, the width of the metal strip 201 and the summation (i.e. wiregrating period) of the width of the strip groove 202 are
20nm-600nm, preferably 50nm-400nm.
Specifically, the width of the metal strip 201 is 20nm-300nm, preferably 40nm-200nm.
Specifically, the metal strip 201 with a thickness of 50nm-300nm.
Specifically, the material of the metal strip 201 includes at least one in aluminium (Al), chromium (Cr), gold (Au) and nickel (Ni)
Kind.
Specifically, the wire grating polaroid 50 further includes the substrate 10, Huo Zhesuo set on 20 lower section of metal wire grid layer
Substrate of the wire grating polaroid 50 using first substrate 60 or the second substrate 70 as metal wire grid layer 20 is stated, to save list
The setting of only substrate 10.
Specifically, the material of the substrate 10 includes glass, polyimides (PI) and polymethyl methacrylate (PMMA)
At least one of.
Preferably, the wire grating polaroid 50 is prepared using nanometer embossing.
Specifically, the liquid crystal display device can be vertical orientation (Vertical Alignment, VA) mode, plane
(In-Plane Switching, the IPS) mode of conversion or fringe field switching (Fringe field switching, FFS) mould
Formula.
Specifically, the first substrate 60 is color membrane substrates, the second substrate 70 is thin-film transistor array base-plate.
Further, the liquid crystal display device can also be made on thin-film transistor array base-plate for colored filter
The display device or black matrix" of (Color filter On Array, COA) are made on thin-film transistor array base-plate
The display device of (Black Matrix On Array or Black Photo Spacer On Array, BOA).
Above-mentioned liquid crystal display device replaces having single by using the wire grating polaroid with a variety of wiregrating periods
The wire grating polaroid in wiregrating period, it is ensured that the incident light of the pixel region of different colours is passing through wire grating polaroid
Shi Jun reaches optimal polarization effect, to improve the display quality of display device.
In conclusion the present invention provides a kind of wire grating polaroid and liquid crystal display device.Wire grating of the invention
The different wiregrating periods is arranged for the region that passes through of the incident light of different colours, and with the single wiregrating period in polaroid
Wire grating polaroid is compared, it is ensured that reaches best when the incident light of different colours passes through wire grating polaroid at the same time
Polarization effect.Liquid crystal display device of the invention is replaced by using the wire grating polaroid with a variety of wiregrating periods
Wire grating polaroid with the single wiregrating period, it is ensured that the incident light of the pixel region of different colours is passing through metal wire
Reach optimal polarization effect when grid polaroid, to improve the display quality of display device.
The above for those of ordinary skill in the art can according to the technique and scheme of the present invention and technology
Other various corresponding changes and modifications are made in design, and all these change and modification all should belong to the claims in the present invention
Protection scope.
Claims (6)
1. a kind of wire grating polaroid, which is characterized in that including substrate (10) and the metal being set on the substrate (10)
Wire-grid layer (20);
The metal wire grid layer (20) includes several wiregrating units (21) in array distribution, and each wiregrating unit (21) includes flat
The several metal strips (201) and several strip grooves (202) between several metal strips (201) of row arrangement, the same line
In grid unit (21), several metal strips (201) it is of same size, several strip grooves (202) it is of same size;
The wire grating polaroid is used to carry out the incident light of a variety of different colours simultaneously polarization manipulation, and the different face
The incident light of color is passed through from different wiregrating units (21) respectively, the wiregrating unit (21) of the incident light of corresponding different colours
In, the width of metal strip (201) is different from the summation of width of strip groove (202);
In the wiregrating unit (21) of the incident light of corresponding different colours, of same size, the strip groove (202) of metal strip (201)
It is of different size;
The wire grating polaroid is used to carry out polarization manipulation simultaneously to red, green and blue incident light, respectively corresponds red
In the wiregrating unit (21) of color, green and blue incident light, of same size, the line of corresponding Red incident light of metal strip (201)
The width of the strip groove (202) of grid unit (21) is greater than the strip groove of the wiregrating unit (21) of corresponding green incident light
(202) width, it is incident that the width of the strip groove (202) of the wiregrating unit (21) of corresponding green incident light is greater than corresponding blue
The width of the strip groove (202) of the wiregrating unit (21) of light.
2. wire grating polaroid as described in claim 1, which is characterized in that the wiregrating list of the incident light of corresponding same color
In first (21), the width and thickness of metal strip (201) are identical, strip groove (202) it is of same size.
3. wire grating polaroid as described in claim 1, which is characterized in that the width of the metal strip (201) with it is described
The summation of the width of strip groove (202) is 20nm-600nm;
The width of the metal strip (201) is 20nm-300nm;The metal strip (201) with a thickness of 50nm-300nm.
4. a kind of liquid crystal display device, which is characterized in that including the first substrate (60) that is oppositely arranged and the second substrate (70), with
And it is located in the liquid crystal layer (80) between the first substrate (60) and the second substrate (70);The liquid crystal display device includes number
A pixel region, several pixel regions include the pixel region of a variety of different colours;
It further include at least one wire grating polaroid (50), at least one described wire grating polaroid (50) is set to described the
One substrate (60) is internal, the second substrate (70) is internal, the first substrate (60) is towards the liquid crystal layer (80) side
Outer surface, the first substrate (60) are far from the outer surface of the liquid crystal layer (80) side, the second substrate (70) towards institute
The outer surface for stating liquid crystal layer (80) side and the second substrate (70) are far from the outer surface of the liquid crystal layer (80) side
At least one at position;
The wire grating polaroid (50) includes metal wire grid layer (20), and the metal wire grid layer (20) includes in array distribution
Several wiregrating units (21), each wiregrating unit (21) includes several metal strips (201) arranged in parallel and is located at several gold
Belong to several strip grooves (202) between item (201), in the same wiregrating unit (21), the width phase of several metal strips (201)
Together, several strip grooves (202) is of same size;
Several wiregrating units (21) in the metal wire grid layer (20) respectively correspond several pixel regions in liquid crystal display device
Domain, in the wiregrating unit (21) of the pixel region of corresponding different colours, the width of metal strip (201) and strip groove (202)
The summation of width is different;
In the wiregrating unit (21) of the pixel region of corresponding different colours, of same size, the strip groove of metal strip (201)
(202) of different size;
The liquid crystal display device includes red pixel area, green pixel area and blue pixel area, corresponding red pixel
In the wiregrating unit (21) in region, green pixel area and blue pixel area, metal strip (201) it is of same size, correspondence it is red
The width of the strip groove (202) of the wiregrating unit (21) in color pixel region is greater than the wiregrating unit of corresponding green pixel area
(21) width of strip groove (202), the width of the strip groove (202) of the wiregrating unit (21) of corresponding green pixel area
Greater than the width of the strip groove (202) of the wiregrating unit (21) of corresponding blue pixel area.
5. liquid crystal display device as claimed in claim 4, which is characterized in that the wiregrating list of the pixel region of corresponding same color
In first (21), the width and thickness of metal strip (201) are identical, strip groove (202) it is of same size.
6. liquid crystal display device as claimed in claim 4, which is characterized in that the width and the item of the metal strip (201)
The summation of the width of connected in star (202) is 20nm-600nm;
The width of the metal strip (201) is 20nm-300nm;The metal strip (201) with a thickness of 50nm-300nm.
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TWI605288B (en) * | 2017-01-16 | 2017-11-11 | 友達光電股份有限公司 | Pixel structure and display panel having the same |
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