CN105785657A - All-viewing-angle blind-zone-free liquid crystal display - Google Patents

All-viewing-angle blind-zone-free liquid crystal display Download PDF

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Publication number
CN105785657A
CN105785657A CN201610291070.6A CN201610291070A CN105785657A CN 105785657 A CN105785657 A CN 105785657A CN 201610291070 A CN201610291070 A CN 201610291070A CN 105785657 A CN105785657 A CN 105785657A
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liquid crystal
polaroid
offset
film
rod groove
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CN105785657B (en
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王艳卿
赵汉华
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Varitronix Heyuan Display Technology Co Ltd
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Varitronix Heyuan Display Technology Co Ltd
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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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133707—Structures for producing distorted electric fields, e.g. bumps, protrusions, recesses, slits in pixel electrodes
    • 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
    • G02F1/13363—Birefringent elements, e.g. for optical compensation
    • 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
    • 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
    • G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
    • G02F1/133723—Polyimide, polyamide-imide
    • 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
    • G02F1/133753—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle
    • 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
    • G02F1/133753—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle
    • G02F1/133761—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle with different pretilt angles

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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)
  • Spectroscopy & Molecular Physics (AREA)
  • Liquid Crystal (AREA)

Abstract

The invention discloses an all-viewing-angle blind-zone-free liquid crystal display which comprises a surface glass substrate and a bottom glass substrate. A surface polarizer is arranged on the outer side face of the surface glass substrate, a surface electrode is arranged on the inner side face of the surface glass substrate, a surface vertical alignment layer is arranged on the inner side face of the surface electrode, a bottom polarizer is arranged on the outer side face of the bottom glass substrate, a bottom electrode is arranged on the inner side face of the bottom glass substrate, a bottom vertical alignment layer is arranged on the inner side face of the bottom electrode, and a negative liquid crystal layer is arranged between the surface vertical alignment layer and the bottom vertical alignment layer. Multiple bar-shaped grooves and at least two domain forming areas are arranged on the surface electrode of the surface glass substrate and the bottom electrode of the bottom glass substrate, so that an electric field has different generating directions, arranging directions of liquid crystal molecules in domains are different, multi-domain displaying free of visual angle blind zones is realized, and the all-viewing-angle blind-zone-free liquid crystal display has the advantages of high contrast ratio and wide viewing angle and is simple in structure and manufacturing process, low in manufacturing cost and high in manufacturing yield.

Description

Non-blind area, full visual angle LCDs
Technical field
The present invention relates to Display Technique field, be specifically related to a kind of full non-blind area, visual angle LCDs.
Background technology
In LCDs, the liquid crystal indicator of vertical orientating type includes glass substrate at the bottom of face；Face, hearth electrode are plated on inside face, end layer glass substrate；Negative liquid crystal layer, between layer glass substrate；The medial surface of face hearth electrode is provided with the both alignment layers of the effect that the liquid crystal molecule in negative liquid crystal layer plays vertical orientation；And it is separately positioned on the polaroid outside face, end glass substrate.By the polaroid that combination vertical aligned liquid-crystal unit and upper and lower quadrature position relation configure, when not setting making alive, liquid crystal indicator is in normally-black display, and transmitance is non-normally low, and is in often white display under power-up condition, and transmitance is higher.It is thus possible to be easily achieved high-contrast.
The molecular structure that the negative liquid crystal being applied in vertical orientation technology is also bar-like, its characteristic is, the polarization light being parallel to molecular long axis cannot pass through；And the polarization light being perpendicular to molecular long axis can pass through.So vertical alignment liquid crystal display is under being initially not powered on state, liquid crystal molecule is rendered proximate to glass substrate arrangement at the bottom of vertical, so there being extraordinary black state to show, but the angled arrangement of glass substrate at the bottom of liquid crystal molecule and face rather than in horizontally arranged under powering state, so some light can only be had to pass through, a dark-state region can be formed in the equivalent long direction of liquid crystal molecule simultaneously, namely be the region that the light transmittance of light is very low, popular i.e. visual angle blind zone.This visual angle blind zone is for being generally 5～10 degree, and there is relation at the position of appearance and the angle of inclination of liquid crystal molecule, namely with the tilt angle relating to parameters system of the drive condition of liquid crystal display and alignment layer material itself.
Because the contrast that vertical alignment liquid crystal display is good and the background colour close to black state are liked by consumers in general, so homeotropic alignment technique applies to each field of display widely, the way improving this visual angle blind zone both at home and abroad at present is mainly multidomain technology, farmland refers to that liquid crystal molecule arranges consistent region substantially, multidomain is exactly the Liquid Crystal Molecules Alignment forming multiple directions inside a pixel, thus reaching to mutually compensate for the effect in the low region of this light transmittance, common technology is MVA and PVA two kinds, but both approaches is all be used on AMLCD, and the structure of this liquid crystal display and processing technology are extremely complex, cost of manufacture is high, large-sized LCD TV can only be applied to or require on higher portable set, cannot be general apply to every field.
General consumer goods, display device on industrial products and mobile unit, since it is desired that display information fewer, also there is the restriction of cost simultaneously, so adopting passive drive liquid crystal display widely, and passive drive liquid crystal display has the advantages such as simple in construction, processing technology is simple, cost is low, reliability is high, size design is flexible, it is possible to meet most requirement, but vertical alignment liquid crystal display at present on the market all exists certain visual angle blind zone.
Additionally, along with the level of consumption of people improves constantly, the requirement of outward appearance and visual effect except quality and requirement functionally, is also improved constantly by consumer by product.Especially for negativity display screen aspect, it is desirable to the background colour of its multiple directions is enough black in light leak, requires that its display pattern brightness is higher simultaneously.Existing (VA) arranged vertically pattern negativity display screen background colour in the vertical direction is enough black in the market, but other direction but has light leak and also color is partially blue.
The principle of VA is that offset that is vertical with polaroid by bar-shaped liquid crystal layer molecule and that be parallel to polaroid surface realizes the compensation to visual angle, when viewing angle is vertical, the superposition of the offset of liquid crystal molecule and polaroid is highly desirable, but when visual angle becomes big, the superposition of the offset of liquid crystal molecule and polaroid just has relatively larger deviation, showing as background colour cast blue, namely there is light leak in different directions, specifically as shown in Figure 9 and Figure 10.
nullWhy existing LCDs occurs that background colour cast is blue and light leak is primarily due to that existing polaroid mends is repaid value and is substantially fixing and the molecule of the film of polaroid compensation now can not carry out mating of optics with the liquid crystal molecule in liquid crystal layer，The composition structure of existing polaroid is as shown in figure 11，Specifically by the first triacetate fiber thin film 21 being layering successively、Polyvinyl alcohol 22、Second triacetate fiber thin film 23、First glue 24、Cyclic olefin polymer film 28 and the second glue 27 form，As wanted the words adjusting polaroid offset，Offset can only be realized adjust by cyclic olefin polymer film is stretched，But find through practice，Existing drawing process has certain limitation，It is embodied in: can only achieve the offset being perpendicular to polaroid direction is 220nm and 440nm two kinds，And the offset of existing liquid crystal layer generally can be adjusted at the value range of 200～1200nm，That is，Existing polaroid is cannot to match with the offset of available liquid crystal layer，Thus causing that the situation of light leak occurs in available liquid crystal display screen.
Owing to existing polaroid is the offset being unable to reach between 220～440nm, corresponding LCDs is not just had to match yet；When requiring the offset that existing polaroid reaches more than 440nm, the compensation film superposition compensating film and one layer of 440nm that can only depend on one layer of 220nm reaches, that is can only achieve the offset of 660nm, other offset is unable to reach, and the price that this two-layer compensates film would is that common monolayer compensates more than 1.5 times of film polaroid price.
Owing to the offset of existing polaroid is substantially fixing, this offset resulting in the liquid crystal layer that can reach best coupling with polaroid offset is fixing, and the offset of liquid crystal layer and polaroid fixing after, for LCDs, its optical effect is exactly fixing, so, then the optical parametric of LCDs cannot be adjusted, such as when needing the light transmittance improving LCDs, general means are all that the offset improving liquid crystal layer reaches (the compensation film of existing liquid crystal layer generally can be adjusted) at the value range of 200～1200nm, after unilaterally have adjusted the offset of liquid crystal cell, other optical parametric such as background colour, visible angle and contrast all can be deteriorated.
Additionally, for existing LCDs, the way passive matrix liquid crystal display screen less than 1/8duty is driven especially for general, owing to the LCDs under above-mentioned drive condition is for steepness less demanding of brilliant box, so significantly high requirement is proposed for the setting of the offset of polaroid and the offset of liquid crystal layer, if it is too high or too low that offset is arranged, capital causes that LCDs display effect is not good, it is difficult to meet the related request of product, and cost of manufacture can promote more than 30%.And for driving the way passive matrix liquid crystal display screen more than 1/8duty, the steepness of liquid crystal cell is required higher, simultaneously as the demand of display effect, the collocation needing the offset of liquid crystal layer in liquid crystal cell and the offset of polaroid is proper, otherwise display effect can be poor, it is impossible to meets the requirement of Related product.Therefore, the setting of the offset of the offset of polaroid and liquid crystal layer is one of key factor affecting liquid crystal display screen display effect and production cost.
In addition, in the technical process that LCDs produces, the step wherein having a key is the glass being printed with both alignment layers to be oriented wiping film process, and so-called directional process refers to and utilizes the cylinder of high-speed rotation to drive felt adhered thereto that the surface of both alignment layers is rubbed.The equipment that existing wiping membrane process adopts is as shown in figure 15, mainly include cylinder 41, platform rotating disk 42, platform 43 and guide rail 45, platform rotating disk rotates for band moving platform, platform can linear reciprocating motion, during this equipment conventional sense, cylinder 41, platform 43 are mutually parallel with horizontal line 44, during work, cylinder 41 along guide rail straight reciprocating motion, platform 43 and guide rail 45 relatively rectilinear motion.It is to say, in existing directed wiping membrane process, platform and cylinder and horizontal line are parallel to each other, specifically as shown in figure 17.But find in practice, in existing directed wiping membrane process, stick to the felt on cylinder and both alignment layers can be affected because of memory effect thus causing the substantial amounts of black and white line of appearance, specifically as shown in figure 18, cause the fraction defective of product up to more than 82%, severely impact cost and the display effect of LCDs.
Summary of the invention
For the deficiencies in the prior art, the purpose of the present invention aims to provide a kind of full non-blind area, visual angle LCDs.
For achieving the above object, the present invention adopts the following technical scheme that
A kind of full non-blind area, visual angle LCDs, including surface glass substrate and end glass substrate；The lateral surface of surface glass substrate is provided with face polaroid, the medial surface of surface glass substrate is provided with face electrode；The medial surface of face electrode is provided with face homeotropic alignment layer；The lateral surface of end glass substrate is provided with end polaroid, the medial surface of end glass substrate is provided with hearth electrode, the medial surface of hearth electrode is provided with end homeotropic alignment layer；Negative liquid crystal layer is arranged between face homeotropic alignment layer and end homeotropic alignment layer, face electrode and hearth electrode are distributed with multiple rod groove, rod groove on the electrode of face and the rod groove on hearth electrode are divided into formation district, at least two farmland on same perspective plane, keep conducting between formation district, farmland and formation district, farmland；Rod groove on the electrode of face is arranged in parallel, and rod groove is separated by conducting film each other；Rod groove on hearth electrode is arranged in parallel, and rod groove is separated by conducting film each other.
Described polaroid or end polaroid are for compensating film polaroid, and this compensation film polaroid includes:
First triacetate fiber thin film；
Polyvinyl alcohol, is arranged at the upper surface of the first triacetate fiber thin film；
Second triacetate fiber thin film, is arranged at the upper surface of polyvinyl alcohol；
First glue, is arranged at the upper surface of the second triacetate fiber thin film；
3rd triacetate fiber thin film, is arranged at the upper surface of the first glue；
Liquid crystal polymer film, is arranged at the upper surface of the 3rd triacetate fiber thin film；
Second glue, is arranged at the upper surface of liquid crystal polymer film；
Wherein, the 3rd triacetate fiber thin film provides the offset being parallel to polaroid surface, and offset is 0～100nm；Thering is provided the offset being perpendicular to polaroid surface, offset is 0～100nm simultaneously
Liquid crystal polymer film provides the compensation being perpendicular to polaroid direction, and offset is 100～1000nm；
The thickness of liquid crystal polymer film is 10～300um.
Described liquid crystal polymer film is made up of cholesteric liquid crystal, and this cholesteric liquid crystal has characteristics that
nz<(nx=ny)
Wherein: n is refractive index；X, y, z axle in x, y, z corresponding three-dimensional coordinate.
When the offset sum being perpendicular to polaroid surface of the liquid crystal polymer film in described compensation film polaroid and the 3rd triacetate fiber thin film is 220nm, the offset of negative liquid crystal layer is 270-400nm；When the offset sum being perpendicular to polaroid surface of the liquid crystal polymer film compensated in film polaroid and the 3rd triacetate fiber thin film is 330nm, the offset of negative liquid crystal layer is 340-500nm；When the offset sum being perpendicular to polaroid surface of the liquid crystal polymer film compensated in film polaroid and the 3rd triacetate fiber thin film is 750nm, the offset of negative liquid crystal layer is 600-1000nm.
Described conducting film is indium tin oxide conductive film.
On described electrode, the long axis direction of rod groove is in 90 ° with the long axis direction of rod groove on hearth electrode, and the formation district, farmland that on the electrode of face, rod groove and rod groove on hearth electrode are formed on same perspective plane is square.
The length of described rod groove is 30～100 microns, and width is 6～20 microns；In formation district, same farmland, the normal distance between the rod groove being parallel to each other is 40～110 microns, and the spacing distance between rod groove and rod groove ends is 6～40 microns.
The polarizing axis direction of described polaroid becomes angle 45 ° with the long axis direction of rod groove on the electrode of face, and the polarizing axis direction of end polaroid is perpendicular with the polarizing axis direction of face polaroid.
Above-mentioned face homeotropic alignment layer and end homeotropic alignment layer are polyimides, all carry out following wiping membrane process:
S1, the carrier being printed with face homeotropic alignment layer or end homeotropic alignment layer is positioned on platform；
Carrier on S2, platform, platform rotates identical angle with the while of carrying out the cylinder wiping film for opposite homeotropic alignment layer or end homeotropic alignment layer with horizontal line for benchmark with same direction, and angular range is less than or equal to 45 degree more than 0 degree；
S3, cylinder drive felt adhered thereto to rotate, and opposite homeotropic alignment layer or end homeotropic alignment layer carry out wiping film and process.
Angular range in described step S2 is 10-45 degree.
The beneficial effects of the present invention is:
Non-blind area, the full visual angle LCDs of the present invention by being provided with multiple rod groove and formation district, at least two farmland on the face electrode of surface glass substrate and the hearth electrode of end glass substrate, electric field is made to have different directions thus the orientation of liquid crystal molecule has different in each farmland, thus the multidomain being implemented without visual angle blind zone shows, the advantage with high-contrast, wide viewing angle, and structure and manufacturing process are simple, low cost of manufacture, fine ratio of product is high.
Accompanying drawing explanation
Fig. 1 is the overall appearance schematic diagram of non-blind area, full visual angle of the present invention LCDs；
Fig. 2 is cross-sectional structure schematic diagram shown in Fig. 1；
Fig. 3 is groove distribution schematic diagram on the electrode of face；
Fig. 4 is groove distribution schematic diagram on hearth electrode；
Formation district, the farmland distribution schematic diagram that Fig. 5 is the groove on the electrode of face and the groove on hearth electrode is divided on same perspective plane；
Fig. 6 is the structural representation of groove；
Fig. 7 is the negative liquid crystal molecules align mode schematic diagram in executing formation district, alive situation next one farmland；
Fig. 8 is the light transmission pattern figure of viewing area under executing alive situation；
Fig. 9 is the effect schematic diagram after available liquid crystal molecule superposition；
Figure 10 is the display effect figure of available liquid crystal display screen；
Figure 11 is the structural representation of existing polaroid；
Figure 12 is the index of refraction relationship figure in three-dimensional coordinate of cholesteric liquid crystal molecule；
Figure 13 is the structural representation that the present invention compensates film polaroid；
Figure 14 is the display effect figure adopting the LCDs after compensating film polaroid；
Both alignment layers is carried out wiping the wiping film device that film processes by Figure 15；
Figure 16 is the schematic diagram that platform rotating disk, platform and cylinder rotate 10-45 degree simultaneously with same direction；
Figure 17 is the schematic diagram that platform rotating disk, platform and cylinder rotate 0 degree simultaneously with same direction；
Figure 18 is the display effect figure after adopting existing wiping membrane process；
Figure 19 is the display effect figure after the wiping membrane process of the employing present invention；
In figure: 1, surface glass substrate；2, end glass substrate；3, face electrode；4, face homeotropic alignment layer；5, hearth electrode；6, end homeotropic alignment layer；7, negative liquid crystal layer；8, face polaroid；9, end polaroid；10, farmland formation district；11, electric field line；30, rod groove；50, rod groove；101, upper farmland；102, left farmland；103, lower farmland；104, right farmland；105, ten shape dark-state region；106, the dark-state region that rod groove is corresponding；200, viewing area；201, the pen section region can lighted；202, the non-pen section region cannot lighted；1001, upper on state of region；1002, lower on state of region；1003, left on state of region；1004, right on state of region；21, the first triacetate fiber thin film；22, polyvinyl alcohol；23, the second triacetate fiber thin film；24, the first glue；25, the 3rd triacetate fiber thin film；26, liquid crystal polymer film；27, the second glue；28, cyclic olefin polymer film；41, cylinder；42, platform rotating disk；43, platform；44, horizontal line；45, guide rail.
Specific embodiment party
Embodiment 1
As it is shown in figure 1, be the overall appearance figure of non-blind area, the present invention full visual angle LCDs, wherein, its viewing area 200 is divided into the pen section region 201 that can light and the non-pen section region 202 that cannot light.
As in figure 2 it is shown, be the sectional view of non-blind area, the present invention full visual angle LCDs, including surface glass substrate 1 and end glass substrate 2, the medial surface at surface glass substrate 1 is provided with face electrode 3, is provided with face homeotropic alignment layer 4 on the medial surface of face electrode 3；Medial surface at end glass substrate 2 is provided with hearth electrode 5, is provided with end homeotropic alignment layer 6 on the medial surface of hearth electrode 5, and negative liquid crystal layer 7 is arranged between face homeotropic alignment layer 4 and end homeotropic alignment layer 6.
Wherein, in the pen section region 201 that can light, being distributed with multiple groove on face electrode 3 and hearth electrode 5, the groove on face electrode 3 and the groove on hearth electrode 5 are divided into formation district, at least two farmland 10 on same perspective plane, keep conducting between formation district, farmland 10 and formation district, farmland 10.
nullAbove-mentioned groove is mainly by the upper etching of etch process face electrode 3 on surface glass substrate 1 and end glass substrate 2 and hearth electrode 5 (face electrode 3 and hearth electrode 5 are conducting film) out，Owing to being distributed with multiple groove on face electrode 3 and hearth electrode 5，Electric field is made to have different generation directions，Form the orientation of liquid crystal molecule in formation district, each farmland 10 and have different，Simultaneously，Keep conducting between 10th district and formation district, farmland 10 owing to farmland is formed，Make to conduct between formation district, all of farmland 10，When making to apply voltage，Formation district, each farmland in same pen section or pixel obtains identical voltage，That is，When being driven，It is driven using pen section or pixel as unit，The formation district, all farmlands belonging to a section or pixel together makees as a whole driving，From without forming the phenomenon that light and shade differs.
Simultaneously, so that non-blind area, the full visual angle display effect of this LCDs is more preferably, as shown in Figure 3-4, groove on the same face electricity 3 poles or hearth electrode 5 is arranged in parallel, wherein, above-mentioned conducting film is tin indium oxide conduction, thus groove is separated by indium tin oxide conductive film each other, and then maintains and conducts between formation district, all of farmland 10.Additionally, so that the display effect of non-blind area, LCDs full visual angle is more preferably, as shown in Figure 6, above-mentioned groove is rod shape, for rod groove, so that (long limit) opening direction of groove is more than the opening direction of another side (arc-shaped edges), owing to the position of rod groove does not have electric field, so liquid crystal molecule does not rotate, thus showing as black state (referring to 106 in Fig. 8).In order to ensure that (aperture opening ratio refers to the ratio between the dull thread the removing pixel area by part and the area of pixel entirety to certain aperture opening ratio, aperture opening ratio is more high, the efficiency that light passes through is more high), so this groove is longilineal bar-shaped, the direction on its long limit is rod groove long axis direction.Rod groove reserves certain position at the edge of pen section or lattice pixels, and this position is not less than 10 microns, and concrete size determines according to the size of pen section and lattice pixels.
As shown in Figure 5, rod groove 30 long axis direction on above-mentioned electrode 3 is in 90 ° with rod groove 50 long axis direction on hearth electrode 5, and the formation district, farmland 10 that the rod groove 30 on face electrode 3 and the rod groove 50 on hearth electrode 5 are formed on same perspective plane is cross area；Discovery is studied through inventor, when on face electrode 3, on the long axis direction of rod groove 30 and hearth electrode 5, the long axis direction of rod groove 50 is in 90 °, the formation district, farmland 10 that on rod groove that on face electrode 3, two groups are parallel to each other 30 and hearth electrode 5, two groups of rod grooves 50 being parallel to each other are formed on same perspective plane is cross area, now, the display effect of the non-blind area, full visual angle of LCDs is more preferably.It should be noted that, on above-mentioned electrode 3, the long axis direction of rod groove 30 can become 0 °～180 ° with the long axis direction of rod groove 50 on hearth electrode 5, thus formation district, farmland 10 can be the polygon such as triangle, tetragon, as long as ensureing to make electric field have different generation directions, thus the orientation forming formation district, each farmland liquid crystal molecule has different.
Wherein, inventor finds in an experiment, and the length of above-mentioned rod groove is 30～100 microns, and width is 6～20 microns；In formation district, same farmland, the normal distance between the rod groove being parallel to each other is 40～110 microns, and when the spacing distance between rod groove and rod groove ends is 6～40 microns, the display effect of the non-blind area, full visual angle of LCDs is more preferably.
Wherein, above-mentioned face homeotropic alignment layer 4 and end homeotropic alignment layer equal 6 are to be coated with print by the polyimides of vertical orientation to form, the thickness of negative liquid crystal layer 7 is 1.5～5.0 microns, its liquid crystal is negative liquid crystal, it is vertically oriented material due to what face homeotropic alignment layer 4 and end homeotropic alignment layer 6 adopted, vertical with surface glass substrate 1 and end glass substrate 2 when not applying electric field；Under applying electric field action, long axis of liquid crystal molecule tilts by the different directions of design.
Return again to shown in Fig. 2, the lateral surface of surface glass substrate 1 is provided with face polaroid 8, the lateral surface of end glass substrate 2 is provided with end polaroid 9, wherein, discovery is studied through inventor, when the polarizing axis direction of face polaroid 8 becomes angle 45 ° with rod groove 30 long axis direction on face electrode 3, light transmittance is best, the polarizing axis direction of end polaroid 9 is vertical with the polarizing axis direction of face polaroid 8, match with the optical path difference of optical compensation films, this optical compensation films and above-mentioned negativity negative liquid crystal layer on face polaroid 8 or end polaroid 9 simultaneously.More specifically, the negative birefringence of liquid crystal molecule and the product of negative negative liquid crystal layer thickness to mate with the negative optical delay compensation value of face polaroid 8 and end polaroid 9, because when being not powered on only when the negative optical delay compensation value of the product dough-making powder polaroid 8 of the birefringence of liquid crystal molecule and negative liquid crystal layer thickness or end polaroid 9 is mated, the light leak of liquid crystal display all directions just can obtain reasonable control, could keep normally-black state.So after applying certain electric field, pen section or the normal bright state of lattice pixels part, can be only achieved reasonable contrast so by contrast.Simultaneously as the negative optical delay compensation value of the polaroid of the product dough-making powder of the birefringence of liquid crystal molecule and negative liquid crystal layer thickness matches, the visual angle of all directions have also been obtained on average, thus obtaining the visual angle of ultra-wide.
Below, in 90 ° with the long axis direction of rod groove 50 on hearth electrode 5 with the long axis direction of rod groove 30 on face electrode 3, the formation district, farmland 10 that on the rod groove that on face electrode 3, two groups are parallel to each other and hearth electrode 5, two groups of rod grooves being parallel to each other are divided on same perspective plane is example for square, describes the operation principle of the LCDs of the present invention in detail:
As shown in Figure 7: face electrode 3 has the opening portion being provided with rod groove 30, hearth electrode 5 are then positioned at the mid portion of rod groove 50 two groups parallel to each other on face electrode 3.When applying electric field, on face electrode 3 opening portion of rod groove 30 power on field wire 11 occur tilt, i.e. electric field line 11 and face electrode 3 and hearth electrode 5 place plane out of plumb, and the incline direction of electric field line 11 is by being determined by opening direction of the opening portion of rod groove 30 on face electrode 3；Liquid crystal molecule in negativity negative liquid crystal layer is under the effect of electric field line 11, it is intended to the opposite direction arrangement that electric field line 11 is vertical.
According to above-mentioned principle, in formation district, a farmland 10, when applying electric field, it is possible to forming liquid crystal arrangement mode as shown in Figure 5, wherein arrow represents liquid crystal molecule direction from the bottom to top.Direction according to Liquid Crystal Molecules Alignment, formation district, one farmland 10 is divided into four regions, in each region, the orientation of long axis of liquid crystal molecule is relatively uniform, each region defines farmland, namely formation district, a farmland 10 is divided into four farmlands on farmland 101, lower farmland 103, left farmland 102, right farmland 104 so that formation district, farmland 10 has the four farmland liquid crystal arrangement that four direction tilts.
The light impinging perpendicularly on LCDs is subsequently formed elliptically polarized light by end polaroid 9, enters negative liquid crystal layer；
When not applying electric field, owing to the direction of propagation of elliptically polarized light is parallel with negative liquid crystal molecule, the polarization state of light is not by the impact of negativity negative liquid crystal layer, simultaneously because the polarizing axis of face polaroid 8 and end polaroid 9 is mutually perpendicular to, therefore light cannot pass through face polaroid 8, and now LCDs shows as dark-state.
When applying electric field, in formation district, one farmland 10, due to negative liquid crystal molecules align mode as shown in Figure 7, therefore negative liquid crystal molecular long axis direction can form different angles from incident direction of polarized light, such that it is able to change the polarization state of incident polarized light, make the light can be some or all of by face polaroid 8, form on state of and show.Owing to the polarizing axis of face polaroid 8 with end polaroid 9 is mutually perpendicular to, and angle at 45 ° with rod groove, therefore formation district, a farmland 10 forms light transmission pattern as shown in Figure 8, and formation district, each farmland 10 includes four triangle on state of regions on state of region 1001, lower on state of region 1002, left on state of region 1003, right on state of region 1004；" ten " shape dark-state region 105 that these on state of regions 1001,1002,1003,1004 are formed on the diagonal in district 106 by farmland is separated, and is separated in the on state of region that these on state of regions 1001,1002,1003,1004 and other farmland form district 10 by the dark-state region 106 that rod groove is corresponding.
Due to the symmetry of negative liquid crystal molecule tilt, therefore go up and there is between farmland 101 and lower farmland 103 visual angle complementary characteristic, between left farmland 102 and right farmland 104, also there is visual angle complementary characteristic, thus forming viewing angle characteristic symmetrical up and down.The characteristic of this complementation makes LCDs first and last not have visual angle blind zone (region that namely on state of is dimmed), and its brightness is also fewer with the brightness of optimal viewing angle deviation.
According to above-mentioned principle, the equalization effect in formation district, all farmlands 10 makes LCDs uniform at all directions visual angle, symmetrical, it is achieved LCDs does not have four farmland display effects of visual angle blind zone.
In like manner, the Chou Xing district of other shapes, it is also possible to realizing LCDs does not have the display effect of visual angle blind zone.
Embodiment 2
The LCDs of the present embodiment, basic identical with the LCDs in embodiment 1, it is different in that, the egative film mating plate in the present embodiment is that end polaroid is for compensating film polaroid.
As shown in figure 13, the compensation film polaroid of the present invention includes the first triacetate fiber thin film 21；Polyvinyl alcohol 22, is arranged at the upper surface of the first triacetate fiber thin film 21；Second triacetate fiber thin film 23, is arranged at the upper surface of polyvinyl alcohol 22；First glue 24, is arranged at the upper surface of the second triacetate fiber thin film 23；3rd triacetate fiber thin film 25, is arranged at the upper surface of the first glue 24；Liquid crystal polymer film 26, is arranged at the upper surface of the 3rd triacetate fiber thin film 25；Second glue 27, is arranged at the upper surface of liquid crystal polymer film 26；It is to say, the first above-mentioned triacetate fiber thin film 21, polyvinyl alcohol the 22, second triacetate fiber thin film the 23, first glue the 24, the 3rd triacetate fiber thin film 25, liquid crystal polymer film 26 and the second glue 27 are layering successively.
The 3rd wherein above-mentioned triacetate fiber thin film 25 can not only provide carrier for liquid crystal polymer film 26, and the offset being parallel to polaroid surface can be provided, when its offset is 0～100nm, the dispersion of light can be efficiently controlled, when the offset of the 3rd triacetate fiber thin film 25 is 0, although it is not provided that parallel and polaroid surface offset, but can so that LCDs obtains good visual angle symmetry；nullLiquid crystal polymer film 26 provides the compensation being perpendicular to polaroid direction，Offset is 100～1000nm，That is，The offset of liquid crystal polymer film 26 can be adjusted at the value range of 100～1000nm，Owing to the offset of liquid crystal polymer film 26 is to adjust，Thus just can arrange in pairs or groups different offsets for the LCDs of different demands，Such as when there being high transmission rate demand，The method of prior art is to heighten the offset of liquid crystal layer in LCDs，Owing to the offset in existing polaroid is to adjust，Which results in the background colour light leak of whole LCDs and cause that contrast declines，And in the present invention，Owing to the offset of the liquid crystal polymer film 26 in polaroid is can be adjusted with the liquid crystal layer offset in LCDs，So the result having high transmission rate while contrast does not decline can be reached.
Simultaneously, when the offset of liquid crystal polymer film 26 is 100～1000nm, just can match with the offset (can adjust at 200～1200nm) of the liquid crystal layer in existing homeotropic alignment liquid crystal display screen, so that the background colour of whole LCDs and contrast obtain and optimize preferably；
In addition, the thickness of liquid crystal polymer film 26 is the key factor of the offset adjusting liquid crystal polymer film 26, research through inventor finds, when the thickness of liquid crystal polymer film 26 is 10-300 μm, it is possible to the offset realizing liquid crystal polymer film can be adjusted at the value range of 100～1000nm.
To sum up, the present invention compensates film polaroid by arranging the position relationship of the 3rd triacetate fiber thin film 25 and liquid crystal polymer film 26 dexterously and arranging the offset scope of the offset scope of the 3rd triacetate fiber thin film 25, liquid crystal polymer film 26 dexterously, under the synergism of above-mentioned several persons, it is thus possible to efficiently solve the blue technical problem with light leak of existing LCDs background colour cast, so that each background color direction of LCDs unanimously and not light leak, effect can be particularly shown as shown in figure 14.
Simultaneously, owing to the liquid crystal molecule of the liquid crystal polymer film 26 of the present invention is different from the offer offset being simple of the cyclic olefin polymer film of prior art, wherein, above-mentioned liquid crystal polymer film 26 is made up of cholesteric liquid crystal, and cholesteric liquid crystal has characteristics that
nz<(nx=ny)
Wherein: n is refractive index；X, y, z is to the x, y, z axle answered in three-dimensional coordinate as shown in figure 12.
Discovery is studied, only when above-mentioned cholesteric liquid crystal molecule meets n through inventorz<(nx=ny) time, could further make the offset of the liquid crystal layer in the offset of liquid crystal polymer film 26 and display screen reach a coupling, just not have and occur that background colour cast is blue and the phenomenon of light leak as shown in figs. 9-10.
In order to ensure the superperformance of liquid crystal polymer film 26, the first glue 24 and the second glue 27 in the application are all mainly made up of acrylic, it is aided with some to fill filler that intermolecular spacing makes whole glue finer and close, the cross-linking agent of adhesive between molecule can be strengthened, with the antistatic agent that other some have electrostatic-proof function, and these filleies, cross-linking agent and antistatic agent contribute to the conventional selection that glue makes, just no longer repeat one by one at this.
Additionally, when the offset being parallel to polaroid surface of the 3rd above-mentioned triacetate fiber thin film 25 is 55nm, when being perpendicular to the offset 50nm on polaroid surface, the dispersion of light can be better controled over.
In addition, discovery is studied through inventor, when the offset sum being perpendicular to polaroid surface of the above-mentioned liquid crystal polymer film 26 compensated in film polaroid and the 3rd triacetate fiber thin film 25 is 220nm, when the offset of negativity negative liquid crystal layer 7 is 270-400nm, it is possible to coupling is general drives way less than 1/8duty passive matrix liquid crystal display screen.LCDs can reach reasonable background colour and contrast, the offset that offset sum is 220nm and negative liquid crystal layer being perpendicular to polaroid surface exceeding liquid crystal polymer film 26 and the 3rd triacetate fiber thin film 25 is after this scope of 270-400nm, and the contrast meeting attenuation ratio of LCDs is more serious.It is that 270-400nm is within the scope of this at the offset sum 220nm being perpendicular to polaroid surface of liquid crystal polymer film 26 and the 3rd triacetate fiber thin film 25 and the offset of liquid crystal layer, the background colour of glass can be adjusted according to the requirement of product, the parameters such as light transmittance, such as: when product requirement background colour is black indigo plant partially, the offset of liquid negative liquid crystal layer can be adjusted on the low side, light transmittance can be slightly lower, when the requirement background colour of product be black partially red time, in liquid crystal cell, the offset of liquid crystal layer can be adjusted to higher, and light transmittance can be slightly higher.
When the offset sum being perpendicular to polaroid surface of the liquid crystal polymer film 26 compensated in film polaroid and the 3rd triacetate fiber thin film 25 is 330nm, when the offset of negativity negative liquid crystal layer 7 is 340-500nm, it is possible to coupling is general drives way less than 1/16duty passive matrix liquid crystal display screen.LCDs can reach reasonable background colour and contrast, the offset that offset sum is 330nm and negative liquid crystal layer being perpendicular to polaroid surface exceeding liquid crystal polymer film 26 and the 3rd triacetate fiber thin film 25 is after this scope of 340-500nm, and the contrast meeting attenuation ratio of LCDs is more serious.It is that 340-500nm is within the scope of this at the offset that offset sum is 330nm and negative liquid crystal layer being perpendicular to polaroid surface of liquid crystal polymer film 26 and the 3rd triacetate fiber thin film 25, the background colour of glass can be adjusted according to the requirement of product, the parameters such as light transmittance, such as: when product requirement background colour is black indigo plant partially, in liquid crystal cell, the offset of liquid crystal layer can be adjusted on the low side, light transmittance can be slightly lower, when the requirement background colour of product be black partially red time, in liquid crystal cell, the offset of liquid crystal layer can be adjusted to higher, and light transmittance can be slightly higher.
When the offset sum being perpendicular to polaroid surface of the liquid crystal polymer film 26 compensated in film polaroid 100 and the 3rd triacetate fiber thin film 25 is 750nm, when the offset of negative liquid crystal layer 7 is 600-1000nm, it is possible to coupling is general drives the way passive matrix liquid crystal display screen more than 1/32duty.LCDs can reach reasonable background colour and contrast, the offset that offset sum is 750nm and negative liquid crystal layer being perpendicular to polaroid surface exceeding liquid crystal polymer film 26 and the 3rd triacetate fiber thin film 25 is after this scope of 600-1000nm, and the contrast meeting attenuation ratio of LCDs is more serious.It is that 600-1000nm is within the scope of this at the offset that offset sum is 750nm and negative liquid crystal layer being perpendicular to polaroid surface of liquid crystal polymer film 26 and the 3rd triacetate fiber thin film 25, the background colour of glass can be adjusted according to the requirement of product, the parameters such as light transmittance, such as: when product requirement background colour is black indigo plant partially, in liquid crystal cell, the offset of liquid crystal layer can be adjusted on the low side, light transmittance can be slightly lower, when the requirement background colour of product be black partially red time, in LCDs, the offset of negative liquid crystal layer 7 can be adjusted to higher, light transmittance can be slightly higher.
Embodiment 3
The LCDs of the present embodiment, basic identical with the LCDs in embodiment 1, it is different in that, in the present embodiment, face homeotropic alignment layer and end homeotropic alignment layer are polyimides and carry out following wiping membrane process:
S1, the carrier being printed with face homeotropic alignment layer or end homeotropic alignment layer is positioned on platform；
S2, platform, carrier and the cylinder for both alignment layers carries out wiping film rotate 10 degree with same direction with horizontal line for benchmark simultaneously, and concrete schematic diagram is as shown in figure 16；
S3, cylinder drive felt adhered thereto to rotate, and both alignment layers is oriented wiping film and processes.Certainly, in order to increase the efficiency wiping film, cylinder is while rotating, and cylinder can move along guide rail forward rectilinear, and platform is then the rectilinear movement relative with cylinder.
Wherein above-mentioned carrier is glass.
By using above-mentioned orientation to wipe membrane process, obtain display effect as shown in figure 19, substantially without black and white line occurs, cause because of black and white line the ratio of bad product to be only 0.1%.
Certainly, when needs strengthen certain visual angle, direction, above-mentioned face homeotropic alignment layer and end homeotropic alignment layer are carried out wiping membrane process treatment effect better.
Embodiment 4
The present embodiment is basic identical with embodiment 3, is different in that in step S2, and platform rotating disk, platform and the cylinder for both alignment layers carries out wiping film rotate 25 degree with same direction simultaneously, and concrete simplified schematic diagram is as shown in figure 16.
Final display effect is: substantially without there is black and white line, causes the ratio of bad product to be only 0.8% because of black and white line.
Embodiment 5
The present embodiment is basic identical with embodiment 3, is different in that in step S2, and platform rotating disk, platform and the cylinder for both alignment layers carries out wiping film rotate 45 degree with same direction simultaneously, and concrete simplified schematic diagram is as shown in figure 16.
Final display effect is: substantially without there is black and white line, causes the ratio of bad product to be only 0.5% because of black and white line.
Embodiment 6
The present embodiment is basic identical with embodiment 3, it is different in that in step S2, platform, carrier and carry out the cylinder wiping film for opposite homeotropic alignment layer or end homeotropic alignment layer rotate 2 degree with same direction with horizontal line for benchmark simultaneously, concrete simplified schematic diagram is as shown in figure 16.
Final display effect is: substantially without there is black and white line, causes the ratio of bad product to be only 1% because of black and white line.
Embodiment 7
The present embodiment is basic identical with embodiment 3, is different in that in step S2, and platform, carrier rotate 10 degree with same direction with horizontal line for benchmark simultaneously, and cylinder does not rotate.
Final display effect is: substantial amounts of black and white line occur, causes the ratio of bad product up to 78% because of black and white line.
Embodiment 8
The present embodiment is basic identical with embodiment 3, is different in that in step S2, and platform, carrier do not rotate, and cylinder rotates 10 degree with horizontal line for benchmark.
Final display effect is: substantial amounts of black and white line occur, causes the ratio of bad product up to 81% because of black and white line.
It will be apparent to those skilled in the art that can technical scheme as described above and design, make other various corresponding changes and deformation, and all these change and deformation all should belong within the protection domain of the claims in the present invention.

Claims (10)

1. non-blind area, a full visual angle LCDs, including surface glass substrate and end glass substrate；The lateral surface of surface glass substrate is provided with face polaroid, the medial surface of surface glass substrate is provided with face electrode；The medial surface of face electrode is provided with face homeotropic alignment layer；The lateral surface of end glass substrate is provided with end polaroid, the medial surface of end glass substrate is provided with hearth electrode, the medial surface of hearth electrode is provided with end homeotropic alignment layer；Negative liquid crystal layer is arranged between face homeotropic alignment layer and end homeotropic alignment layer, it is characterized in that, face electrode and hearth electrode are distributed with multiple rod groove, rod groove on the electrode of face and the rod groove on hearth electrode are divided into formation district, at least two farmland on same perspective plane, keep conducting between formation district, farmland and formation district, farmland；Rod groove on the electrode of face is arranged in parallel, and rod groove is separated by conducting film each other；Rod groove on hearth electrode is arranged in parallel, and rod groove is separated by conducting film each other.
2. full non-blind area, visual angle as claimed in claim 1 LCDs, it is characterised in that described polaroid or end polaroid are for compensating film polaroid, and this compensation film polaroid includes:
First triacetate fiber thin film；
Polyvinyl alcohol, is arranged at the upper surface of the first triacetate fiber thin film；
Second triacetate fiber thin film, is arranged at the upper surface of polyvinyl alcohol；
First glue, is arranged at the upper surface of the second triacetate fiber thin film；
3rd triacetate fiber thin film, is arranged at the upper surface of the first glue；
Liquid crystal polymer film, is arranged at the upper surface of the 3rd triacetate fiber thin film；
Second glue, is arranged at the upper surface of liquid crystal polymer film；
Wherein, the 3rd triacetate fiber thin film provides the offset being parallel to polaroid surface, and offset is 0～100nm；Thering is provided the offset being perpendicular to polaroid surface, offset is 0～100nm simultaneously；
Liquid crystal polymer film provides the compensation being perpendicular to polaroid direction, and offset is 100～1000nm；
The thickness of liquid crystal polymer film is 10～300um.
3. full non-blind area, visual angle as claimed in claim 2 LCDs, it is characterised in that described liquid crystal polymer film is made up of cholesteric liquid crystal, and this cholesteric liquid crystal has characteristics that
nz< (nx=ny)
Wherein: n is refractive index；X, y, z axle in x, y, z corresponding three-dimensional coordinate.
4. full non-blind area, visual angle as claimed in claim 2 LCDs, it is characterized in that, when the offset sum being perpendicular to polaroid surface of the liquid crystal polymer film in described compensation film polaroid and the 3rd triacetate fiber thin film is 220nm, the offset of negative liquid crystal layer is 270-400nm；When the offset sum being perpendicular to polaroid surface of the liquid crystal polymer film compensated in film polaroid and the 3rd triacetate fiber thin film is 330nm, the offset of negative liquid crystal layer is 340-500nm；When the offset sum being perpendicular to polaroid surface of the liquid crystal polymer film compensated in film polaroid and the 3rd triacetate fiber thin film is 750nm, the offset of negative liquid crystal layer is 600-1000nm.
5. full non-blind area, visual angle as claimed in claim 1 LCDs, it is characterised in that described conducting film is indium tin oxide conductive film.
6. full non-blind area, visual angle as claimed in claim 1 LCDs, it is characterized in that, on described electrode, the long axis direction of rod groove is in 90 ° with the long axis direction of rod groove on hearth electrode, and the formation district, farmland that on the electrode of face, rod groove and rod groove on hearth electrode are formed on same perspective plane is square.
7. full non-blind area, visual angle as claimed in claim 1 LCDs, it is characterised in that the length of described rod groove is 30～100 microns, and width is 6～20 microns；In formation district, same farmland, the normal distance between the rod groove being parallel to each other is 40～110 microns, and the spacing distance between rod groove and rod groove ends is 6～40 microns.
8. full non-blind area, visual angle as claimed in claim 1 LCDs, it is characterized in that, the polarizing axis direction of described polaroid becomes angle 45 ° with the long axis direction of rod groove on the electrode of face, and the polarizing axis direction of end polaroid is perpendicular with the polarizing axis direction of face polaroid.
9. full non-blind area, visual angle as claimed in claim 1 LCDs, it is characterised in that described homeotropic alignment layer and end homeotropic alignment layer are polyimides and carry out following wiping membrane process:
S1, the carrier being printed with face homeotropic alignment layer or end homeotropic alignment layer is positioned on platform；
Carrier on S2, platform, platform rotates identical angle with the while of carrying out the cylinder wiping film for opposite homeotropic alignment layer or end homeotropic alignment layer with horizontal line for benchmark with same direction, and angular range is less than or equal to 45 degree more than 0 degree；
S3, cylinder drive felt adhered thereto to rotate, and opposite homeotropic alignment layer or end homeotropic alignment layer carry out wiping film and process.
10. the both alignment layers for LCDs as claimed in claim 9, it is characterised in that the angular range in described step s2 is 10-45 degree.
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