CN108873502A - Liquid crystal display device and method of fabricating the same - Google Patents
Liquid crystal display device and method of fabricating the same Download PDFInfo
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- CN108873502A CN108873502A CN201810779907.0A CN201810779907A CN108873502A CN 108873502 A CN108873502 A CN 108873502A CN 201810779907 A CN201810779907 A CN 201810779907A CN 108873502 A CN108873502 A CN 108873502A
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- 238000001914 filtration Methods 0.000 claims description 3
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- 230000000007 visual effect Effects 0.000 description 7
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- MRNHPUHPBOKKQT-UHFFFAOYSA-N indium;tin;hydrate Chemical compound O.[In].[Sn] MRNHPUHPBOKKQT-UHFFFAOYSA-N 0.000 description 2
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- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical class [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 2
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Classifications
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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
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
-
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
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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)
- Liquid Crystal (AREA)
- Geometry (AREA)
Abstract
The present application relates to a liquid crystal display device and a method of manufacturing the same. The liquid crystal display device comprises a first substrate, a second substrate opposite to the first substrate, a color filter layer positioned on one side of the first substrate close to the second substrate, a first transparent conducting layer positioned on one side of the color filter layer close to the second substrate, a shading element array extending from the first transparent conducting layer to the direction close to the second substrate, a second transparent conducting layer positioned on one side of the second substrate close to the shading element array, and a liquid crystal layer positioned between the first transparent conducting layer and the second transparent conducting layer. The second transparent conducting layer comprises a plurality of common electrodes, each common electrode comprises a plurality of annular sub-electrodes, and the projections of each sub-electrode and the shading element array on the first substrate are not overlapped with each other.
Description
Technical field
This application involves field of display technology more particularly to a kind of liquid crystal display device and preparation method thereof.
Background technique
Liquid crystal display device is the display equipment of planar ultra-thin, it is made of a certain number of colored or monochrome pixels, is put
It is placed in front of light source or reflecting surface.Liquid crystal display power consumption is very low, therefore is favored by engineer, suitable for using battery
Electronic equipment.Its cardinal principle is to generate point, line, surface cooperation back fluorescent tube with electric current stimulation liquid crystal molecule to be constituted picture.
The working principle of liquid crystal display：Liquid crystal is a kind of particular matter between a solid and a liquid, it is a kind of
Organic compound is in a liquid state under normality, but its molecules align is but fairly regular as solid crystal, therefore is named liquid
Crystalline substance, its another special nature be, if liquid crystal is given to apply an electric field, can change its molecules align, at this moment if
Its matching polarized light piece is given, it just has the function of that light is prevented to pass through (when not applying electric field, light can be penetrated smoothly),
If cooperating colored filter again, change adds to liquid crystal voltage size, can change a certain color light transmission capacity number, can also be with
The voltage for figuratively changing liquid crystal both ends can change its light transmittance (but this must cooperate with polarizer in practice).
In recent years, as liquid crystal molecule shows the continuous development of (LCD) technology, performance of the people for liquid crystal display device
It is required that also higher and higher.Vertically oriented (VA) mode LCD is because have higher contrast, broader visual angle, more preferably
Visual effect, be increasingly used in every field.VA mode LCD includes be formed with pixel electrode
One substrate, the second substrate for being formed with public electrode and the liquid crystal molecule between first substrate and the second substrate.It is existing
Technology is in order to realize that LCD device display view angle is more extensively distributed, by that can pattern the pixel electrode on first substrate, in pixel electricity
Slit (Slit) is formed on extremely, and then same pixel electrode is separated into different regions.To the pixel electrode in different zones
Voltage's distribiuting is different, and the corresponding liquid crystal molecules tilt degree in each region can be made different, and then increases liquid crystal molecule and show farmland
Number realizes that multidomain is shown, and then expands display view angle.But since the pixel circuit formed on first substrate further includes film crystalline substance
Body pipe (TFT), storage capacitance (Cst) etc., structure is complex, then has been formed on patterned pixel electrode technique and has answered
It is miscellaneous and be possible to influence other circuit structures, it influences liquid crystal display device performance and stablizes.
Summary of the invention
The purpose of the present invention is to solve the above problem, a kind of liquid crystal display device and preparation method thereof is provided.
To achieve the above object, the present invention uses following technical scheme：
A kind of liquid crystal display device, including：
First substrate；
The second substrate opposite with first substrate；
Chromatic filter layer, the chromatic filter layer are located at first substrate close to the side of the second substrate；
First transparency conducting layer, first transparency conducting layer include the pixel electrode of multiple whole face shapes, and are located at colour
Filter layer is close to the side of the second substrate；
Light-shielding component array, the light-shielding component array include the shading element of multiple array arrangements, each shading element
Extend from the first transparency conducting layer to the direction close to the second substrate；
Second transparency conducting layer, second transparency conducting layer are located at the second substrate close to the side of light-shielding component array,
Second transparency conducting layer includes multiple public electrodes, and each public electrode includes multiple cricoid sub-electrodes, every height
Electrode is not overlapped with the projection of light-shielding component array on the first substrate；And
Liquid crystal layer, the liquid crystal layer is between the first transparency conducting layer and the second transparency conducting layer.
In one embodiment, the light-shielding component array includes multiple first shading elements and multiple second shadings member
Part, the projection of the multiple first shading element on the first substrate are located between the projection of two adjacent pixel electrodes, institute
It states the projection of multiple second shading elements on the first substrate to be located within each pixel electrode, each first shading element wraps
The first protrusion unit for including the first lightproof unit and extending from the first lightproof unit to the second transparency conducting layer, each second shading
Element includes the second lightproof unit and the second protrusion unit from the second lightproof unit to the second transparency conducting layer that extend from.
In one embodiment, the outer surface of first protrusion unit is relative to first transparency conducting layer in sharp
The outer surface at angle, second protrusion unit is also at an acute angle relative to first transparency conducting layer.
In one embodiment, the size of the multiple first shading element is different.
In one embodiment, the size of the multiple second shading element is different.
In one embodiment, multiple sub-electrodes of each public electrode are electrically connected.
In one embodiment, multiple sub-electrode array arrangements of the multiple public electrode, each sub-electrode center is
Equipped with aperture, multiple aperture rows and multiple apertures column are formed, the light-shielding component array includes multiple shading element rows and multiple
Shading element column, each shading element row are respectively positioned between two adjacent aperture rows, and each shading element column are respectively positioned on two
Between adjacent aperture column.
In one embodiment, each shading element row is identical as the adjacent spacing of two aperture rows, each shading member
Part column are identical as the spacing that two adjacent apertures arrange.
A kind of liquid crystal display device, including：
First substrate；
Filter layer is formed in above the first substrate；
Several pixel electrodes are formed in above the filter layer, and each pixel electrode is whole face shape；
Several protrusions are formed in above the filter layer；
The second substrate, positioned at the first substrate top and be oppositely arranged with the first substrate；
Several public electrodes are formed in below the second substrate, and each public electrode includes several son electricity being electrically connected
Pole, the protrusion are not overlapped with the projection of the sub-electrode on the first substrate, have one in the middle part of each sub-electrode
A aperture, the aperture in several sub-electrodes intersect with several protrusions；And
Liquid crystal molecule, between several pixel electrodes and several public electrodes.
A kind of preparation method of liquid crystal display device, including：
First substrate is provided；
It is rectangular at filter layer on the first substrate；
Several pixel electrodes are formed above the filter layer, each pixel electrode is whole face shape；
Several protrusions are formed above the filter layer；
The second substrate is provided；
Several public electrodes are formed below the second substrate, each public electrode includes several son electricity being electrically connected
Pole is respectively formed aperture in each sub-electrode；
The second substrate is fitted in above the first substrate, so that the protrusion is with the sub-electrode described
Projection on first substrate does not overlap, and the aperture in several sub-electrodes intersects with several protrusions；And
Liquid crystal molecule is poured between several pixel electrodes and several public electrodes.
Compared with prior art, in liquid crystal display device provided by the present invention and preparation method thereof, aperture is formed in
On public electrode so that the public electrode in same subpixel area is divided into several regions, each region due to aperture influence and
Liquid crystal molecules tilt with different voltage's distribiutings, therefore in each region is distributed difference, and then expands display view angle；Meanwhile
Each pixel electrode is whole face shape, technical process is simple and effective protection first substrate on circuit structure so that liquid crystal display
Device performance is stablized.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes a part of the invention, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings：
Fig. 1 is the partial profile structure of liquid crystal display device provided by one embodiment of the present invention；
Fig. 2 is the plan structure signal in a pixel region of liquid crystal display device provided by one embodiment of the present invention
Figure.
Fig. 3 is the schematic diagram of a shading element of the liquid crystal display device that further embodiment of this invention provides.
Fig. 4 be another embodiment of the present invention provides liquid crystal display device a sub-electrode schematic diagram.
Fig. 5 is the schematic diagram of a sub-electrode of the liquid crystal display device that yet another embodiment of the invention provides.
Fig. 6 is the flow diagram of the preparation method of liquid crystal display device provided by one embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the specific embodiment of the invention and
Technical solution of the present invention is clearly and completely described in corresponding attached drawing.Obviously, described embodiment is only the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
The direction term that the present invention is previously mentioned, for example, "upper", "lower", "front", "rear", "left", "right", "inner", "outside",
" side " etc. is only the direction with reference to annexed drawings.Therefore, the direction term used be to illustrate and understand the present invention, and
It is non-to limit the present invention.In order to understand and be convenient for description, the size and thickness of each component shown in the accompanying drawings are arbitrarily to show
Out, but the invention is not restricted to this.
It will be appreciated that when the component of such as layer, film, region or substrate is referred to as " " described when another component "upper"
Component can be directly on another component, or there may also be intermediate modules.In addition, in the description, except non-clearly
Ground is described as opposite, and otherwise word " comprising " will be understood as meaning to include the component, but be not excluded for any other group
Part.In addition, in the description, " ... on " mean to be located at target element either above or below, and be not intended to must be positioned at base
On top above the gravity.
Below in conjunction with attached drawing, the technical solution of preferred embodiment that the present invention will be described in detail offer.
As shown in Figures 1 and 2, liquid crystal display device 10 provided in this embodiment, including first substrate 100, colorized optical filtering
The 200, first transparency conducting layer 300 of layer, light-shielding component array 400, the second substrate 500, the second transparency conducting layer 600 and liquid crystal
Layer 700.The first substrate 100 and the second substrate 500 are opposite.The chromatic filter layer 200 is located at first substrate 100 and leans on
The side of nearly the second substrate 500.First transparency conducting layer 300 includes the pixel electrode 301 of multiple whole face shapes, and is located at coloured silk
Color filtering optical layer 200 is close to the side of the second substrate 500.The light-shielding component array 400 includes the shading member of multiple array arrangements
Part, each shading element extend from the first transparency conducting layer 300 to the direction close to the second substrate 500.Described second is transparent
Conductive layer 600 is located at the second substrate 500 close to the side of light-shielding component array 400, and second transparency conducting layer 600 and hides
There are spacing for optical component array 400.Second transparency conducting layer 600 includes multiple public electrodes 610, each public electrode
610 include multiple cricoid sub-electrodes 611, and each sub-electrode 611 is with light-shielding component array 400 on first substrate 100
Projection does not overlap.The liquid crystal layer 700 between the first transparency conducting layer 300 and the second transparency conducting layer 600 and including
Multiple liquid crystal molecules 701.
Chromatic filter layer 200 and light-shielding component array 400 are formed on first substrate 100 in the present embodiment, certainly its
Filter layer 200 and/or light-shielding component array 400 can also be formed in the second substrate in the liquid crystal display device 10 of his embodiment
500, here with no restrictions.But filter layer 200 is when being formed in the second substrate 500, first substrate 100 and the second substrate 500
Realize contraposition by fitting, be easy to appear contraposition it is inaccurate and the phenomenon that lead to light leakage, therefore, the present embodiment is by 200 shape of filter layer
At filter on thin film transistor photosphere (COT, color filter on TFT) structure on first substrate 100, that is, is formed, effectively
Improve above-mentioned technical problem, i.e. the contraposition deviation of filter layer 200 Yu pixel electrode 301 can be effectively reduced in COT, and it is existing to improve light leakage
As.
First substrate 100 includes substrate 101 and the circuit structure 102 being formed on substrate.Substrate 101 can be glass base
Material or plastic basis material.Circuit structure 102 is generally formed by metal conducting layer by chemical etch technique, including multi-strip scanning letter
Number line, a plurality of data signal line and multiple pixel circuits.Multi-strip scanning signal wire is successively arranged in parallel along first direction, a plurality of number
It is successively arranged in parallel along the second direction vertical with first direction according to signal wire, and multi-strip scanning signal wire and a plurality of data-signal
Line is located at different layers, though so that square crossing is insulated from each other.Multi-strip scanning signal wire and data signal line intersection define
Multiple pixel regions are formed with pixel circuit in each pixel region.Each pixel circuit includes thin film transistor (TFT) (TFT), storage electricity
Hold (Cst) etc..Thin film transistor (TFT) is top gate type or bottom gate type.Here it is illustrated by taking bottom gate thin film transistor as an example,
Including be formed on substrate patterned grid, cover grid gate insulation layer, be formed on gate insulation layer and in face of grid
Semiconductor active layer, and be formed in source electrode and the drain electrode at active layer both ends.There is switch TFT and drive in same pixel
Dynamic TFT.It drives the grid of TFT to be electrically connected the drain electrode of switch TFT, while the grid of TFT being driven also to be electrically connected scanning signal
Line.The source electrode of TFT is driven to be electrically connected data signal line.It drives the drain electrode of TFT to be electrically connected pixel electrode 301, and then passes through
TFT is driven to drive the row of the liquid crystal molecule 701 between first substrate 100 and the second substrate 500, each subpixel area
Column.
Chromatic filter layer 200 is formed on first substrate 100.Chromatic filter layer 200 includes the color blocking list of n kind different colours
Member 201, adjacent 201 color of color blocking unit is different, and n is the integer greater than 2.The color blocking unit of different colours is performance various colors
Optical filter, it can accurately select to be intended to by small range wave band light wave, and reflect away other be not intended to by wave
Section.Color blocking unit is mounted on the front of light source, and human eye is made to can receive some color light of saturation.Various colors it is multiple
Color blocking unit is located in the subpixel area of each color, is filtered to the wavelength by the light in each subpixel area,
Different colors is presented, and then realizes that the true color of liquid crystal display device is shown.The present embodiment filter layer 200 includes three kinds of colors
Color blocking unit 201, i.e. red color resistance unit R, green color blocking unit G and blue color blocking unit B pass through these three color colors
Resistance unit 201, which cooperates, realizes that true color is shown, the color and type of the color blocking unit 201 that certain other embodiments include
It can be different from the present embodiment.
First transparency conducting layer 300 is formed on filter layer 200, and the pixel electrode 301 including multiple whole face shapes.
Each pixel electrode 301 is corresponding with a color blocking unit 201.Several conductive through holes (not shown) are formed in filter layer 200, respectively
Pixel electrode 301 is electrically connected by the drain electrode of each conductive through hole and the driving TFT in TFT substrate.In each subpixel area
Pixel electrode 301 drive the liquid crystal molecule 701 in each subpixel area to rotate by driving TFT.Described first transparent leads
Electric layer 300 is formed using transparent conductive materials such as tin indium oxide or indium zinc oxides.Meanwhile each pixel electrode in the embodiment of the present invention
301 be whole face shape, i.e., the pixel electrode 301 in each subpixel area is a complete transparency conducting layer, without right
Transparency conducting layer in each subpixel area is patterned, therefore 301 formation process of pixel electrode simplifies, can be with effective protection
Circuit structure on first substrate 100, so that liquid crystal display device performance is stablized.
The light-shielding component array 400 includes the shading element of multiple array arrangements, and each shading element is saturating from first
Bright conductive layer 300 extends to the direction close to the second substrate 500, forms raised structures, that is to say, that each shading element is
One protrusion.The a plurality of scan signal line disposed in parallel and a plurality of data-signal disposed in parallel formed in TFT substrate
Line etc. constitutes the metal routing shading region on first substrate 100.And the embodiment of the present invention is due to the pixel in each subpixel area
Electrode 301 is whole face shape, therefore may form liquid crystal molecule exception due to non-uniform electric in pixel electrode 301
Guide portion.It is located at metal routing shading region and liquid crystal molecule exception guide portion as the shading element of protrusion in the present embodiment
It is interior, it should be noted that metal routing shading region mentioned here and liquid crystal molecule exception guide portion are one and pass through liquid crystal
Show the three-dimensional region of device, and is not necessarily referring to only on 300 single layer of first substrate 100 or the first transparency conducting layer.
Multiple shading elements of the light-shielding component array 400 constitute multiple shading element rows and multiple shading elements column.
Specifically, light-shielding component array 400 includes multiple first shading elements 410 and multiple second shading elements 420.The multiple
One shading element 410 is located between the projection of two adjacent pixel electrodes 301 in the projection on first substrate 100, described more
A second shading element 420 is located within each pixel electrode 301 in the projection on first substrate 100.Each first shading member
Part 410 includes the first lightproof unit 411 and what is extended from the first lightproof unit 411 to the second transparency conducting layer 600 first dashes forward
Play unit 412, each second shading element 420 include the second lightproof unit 421 with from the second lightproof unit 421 to second thoroughly
The second protrusion unit 422 that bright conductive layer 600 extends.The outer surface of first protrusion unit 412 is saturating relative to described first
Bright conductive layer 600 is at an acute angle, and the outer surface of second protrusion unit 422 is also in relative to first transparency conducting layer 600
Acute angle.
That is, multiple first shading elements 410 are located at two adjacent 201 ends of color blocking unit.Adjacent two color blocking
201 end of unit belongs to metal routing area, therefore the first shading element 410 is located in metal routing area, therefore will not be because of
The setting of one shading element 410 and influence display device normally go out light.First shading element 410 includes the first lightproof unit 411
With the first protrusion unit 412 for being formed in 411 top of the first lightproof unit.It is aobvious that first lightproof unit 411 is equivalent to traditional liquid crystal
Show the black matrix" of device, between two adjacent color blocking units 201, prevents from being injected into a certain subpixel area
Light is injected in the subpixel area of other colors adjacent thereto, causes out optical crosstalk, and then influence liquid crystal display device
10 color contrast.First protrusion unit, 412 outer surface has certain tilt angle relative to pixel electrode 301.Therefore exist
When pixel electrode 301 and public electrode 601 go back no applied voltage, liquid crystal molecule 701 positioned there between can be with first
The inclination of 412 outer surface of protrusion unit and have certain pre-tilting angle.On pixel electrode 301 and public electrode 601
When applying voltage, for liquid crystal molecule 701 by electric field action, the liquid crystal molecule 701 near the first protrusion unit 412 is certain due to having
Pre-tilting angle, therefore other liquid crystal molecules 701 can be driven to rotate rapidly, and not Tongfang around the first protrusion unit 412
Tilt angle after upward liquid crystal molecule 701 rotates is different, and the display characteristic of pixel be space integral it is average as a result, because
The setting of this first protrusion unit 412 is so that the visual angle of liquid crystal display device 10 is wider.
Second shading element 420 is identical as 410 structure of the first shading element, including the second black lightproof unit 421 and shape
At in the second protrusion unit 422 in the second black lightproof unit 421.Second shading element 420 is located at two neighboring first and hides
Molecule abnormality guide portion between optical element 410, and then can prevent from influencing normal due to the second blocking for shading element 420
Light out.The second shading element 420 is located at the molecule abnormality guide portion inside each pixel electrode 301 simultaneously, that is, is located at each pixel electricity
Inside pole 301.Second protrusion unit, 422 outer surface has certain tilt angle also relative to pixel electrode 301, with the first protrusion
Similarly, when applying voltage on pixel electrode 301 and public electrode 601,422 surrounding of the second protrusion unit is different for unit 412
Tilt angle after liquid crystal molecule 701 on direction rotates is different, so that same subpixel area is observed in different perspectives
When show that difference is smaller, increase liquid crystal display device 10 display view angle.
In the light-shielding component array 400, each shading element row is by 410 He of the first shading element being arranged alternately
Second shading element 420 is constituted, and multiple shading elements column then include alternately arranged first shading element column and the second shading
Element column.
The first lightproof unit of the present embodiment 411 is identical as 412 material of the first protrusion unit.Second shading element 420 and
The material of one shading element 410 is identical.So 400 forming method of the present embodiment light-shielding component array is：In chromatic filter layer 200
After disposed thereon black-matrix material, photoresist is coated in black-matrix material, then pass through a patterned gray-level mask (Gray
Tone Mask, GTM) or halftone mask (Half Tone Mask, HTM) photoresist is exposed, then etch exposure after light
Resistance and black-matrix material, are finally peeled away photoresist.Lightproof unit 411,421 and protrusion with different thickness can so be formed
Unit 412,422, technical process is simple.The forming method of certain other embodiments of the invention light-shielding component array 400 can also be with
It is different from the present embodiment, such as it is respectively formed the first shading element 410 and the second shading element 420；Or first lightproof unit
411 and second lightproof unit 421 be formed simultaneously after, then by single exposure develop etching work procedure be formed simultaneously the first protrusion list
Member 412 and the second protrusion unit 422.The material of lightproof unit 411,421 and protrusion unit 412,422 can also be different.
400 structure of other embodiments of the invention light-shielding component array can also be different from the present embodiment, such as the second shading member
Part 420 also may not include the second black lightproof unit 421 and only include the second protrusion unit 422, can equally play expansion view
The effect at angle, being formed for for the second lightproof unit of the present embodiment 421 is easy to process, the thickness of each first shading element 410
Can also be different, the first shading element of part 410 can be made to be supported between first substrate 100 and the second substrate 500, be particularly located at the
Between one transparency conducting layer 300 and the second transparency conducting layer 600, to maintain liquid crystal cell thick.The first protrusion unit of the present embodiment
412 and 422 shape of the second protrusion unit be it is round table-like.In other embodiments, the first shading element 410, the second shading element
420 can also be used hemispherical or ellipsoid etc., as long as shown in figure 3, its outer surface has centainly relative to pixel electrode 301
Tilt angle.That is, the shape of the shading element as protrusion is unlimited.
The second substrate 500 is located at the top of the first substrate 100 and is oppositely arranged with first substrate 100, is transparent
Substrate, such as glass baseplate or plastic basis material, the light of liquid crystal display device projects by transparent the second substrate 500.
Second transparency conducting layer 600 is located at the second substrate 500 close to the side of light-shielding component array 400, and with screening
There are spacing for optical component array 400.Second transparency conducting layer 600 is using electrically conducting transparents materials such as tin indium oxide or indium zinc oxides
Material is made comprising multiple public electrodes 610.Multiple public electrodes 610 are corresponded with multiple color blocking units 201.Each public affairs
Common electrode 610 includes the cyclic annular sub-electrode 611 of multiple electric connections, that is, passes through electrode between two adjacent sub-electrodes 611
Line 612 is electrical connected, and is each formed with aperture 601 in the middle part of each sub-electrode 611.Aperture 601 makes in same subpixel area
Public electrode 610 is divided into several regions, upon application of a voltage, each region due to aperture 601 influence and have different voltage
Distribution, therefore 701 tilt distribution of liquid crystal molecule in each region is different, and then expands display view angle.Each sub-electrode 611 and screening
Projection of the optical component array 400 on first substrate 100 does not overlap, i.e. protrusion and sub-electrode 611 is on first substrate 100
Projection do not overlap.In this way, making each shading element not influences each sub-electrode 611 with pixel electrode 301 between the two
Liquid crystal molecule 701 normally applies voltage, to not influence device normal luminous.
Each sub-electrode 611 of the present embodiment public electrode 610 is not uniformly distributed simultaneously, therefore several protrusion sizes are also simultaneously
It is not quite identical.Specifically, the protrusion size between larger two sub-electrode 610 of spacing is larger, to the expansion at visual angle effect compared with
Greatly, the protrusion size and between smaller two sub-electrode 610 of spacing is smaller, smaller to the expansion effect at visual angle, therefore can make
It is more uniform to obtain display effect.That is, the size of the multiple first shading element 410 is different, in first substrate 100
The size of the first shading element 410 in projection between biggish two sub-electrodes 611 of spacing is also larger, in first substrate
The size of the first shading element 410 in 100 projection between small-pitch two sub-electrodes 611 is also smaller.It is described
The size of multiple second shading elements 420 is also different, and biggish two sub-electrodes of spacing are located in the projection of first substrate 100
The size of the second shading element 420 between 611 is also larger, and small-pitch two are located in the projection of first substrate 100
The size of the second shading element 420 between sub-electrode 611 is also smaller.
Aperture 601 intersects in the sub-electrode 611 between two protrusions and with protrusion.Aperture 601 and protrusion are handed over
Fork, is divided into more regions for display device.When pixel electrode 301 and public electrode 601 apply voltage, in each region
701 tilt distribution of liquid crystal molecule is different, and then more efficiently increases display view angle, realizes that 10 wide viewing angle of liquid crystal display device is aobvious
Show, improves device performance.
611 array arrangement of multiple sub-electrodes of the multiple public electrode 610, each 611 center of sub-electrode are equipped with out
Hole 601, that is to say, that multiple apertures 601 also array arrangement forms multiple aperture rows and multiple apertures column.Specifically, above-mentioned friendship
Fork refers to opening array and light-shielding component array cross-distribution, that is, each aperture row is respectively positioned on two adjacent shading element rows
Between, each aperture column are respectively positioned between two adjacent shading element column, and each shading element row is respectively positioned on two adjacent
Between aperture row, each shading element column are respectively positioned between two adjacent aperture column.Optionally, each shading element row and phase
The spacing of two adjacent aperture rows is identical, and each shading element column are identical as the spacing that two adjacent apertures arrange.
In the present embodiment, each public electrode 610 includes that 10 sub-electrodes, 611,10 sub-electrodes 611 are embarked on journey two-by-two
Arrangement, wherein four two-by-two adjacent sub-electrode 611 by electrode wires 612 form an electrode retaining collar around connection, one second
Lightproof unit 420 is located at the center of the projection of the electrode retaining collar in the projection of first substrate 100.
Aperture 601 and 400 position distribution of light-shielding component array can also be different from the present embodiment in certain other embodiments；
Interval body (Spacer) can also be formed while forming aperture 601 on public electrode 610, at this time on public electrode 610
Aperture 601, interval body and the light-shielding component array being formed on first substrate 100 form certain arrangement, can equally play
Expand the function at visual angle.
Since display device goes out light eventually by the second substrate 500, and public electrode 610 is formed in the second substrate 500,
Therefore after forming aperture 601 on public electrode 610, the reflection or absorption of 610 pairs of light of public electrode can also be reduced, effectively
Improve the percent opening of display device.Aperture of the liquid crystal display device i.e. provided in an embodiment of the present invention on public electrode 610
601, the function of expanding visual angle on the one hand can be played, the percent opening of display device is on the other hand effectively increased.The present embodiment
Aperture 601 is oval poroid, and the center of each sub-electrode 611 is arranged in, but invention is not limited thereto system.Other embodiments
In, sub-electrode 611 can also have other structures.For example, as shown in Figures 4 and 5, the shape of sub-electrode 611 is also unlimited,
It can be round rectangle, rectangular, round, oval or other shapes；Aperture 601 can also be other shapes, such as rectangular opening, side
Shape hole, round hole, delthyrium even irregular figure it is poroid；Also, it can also be arranged incessantly in same sub-electrode 611
One aperture 601.
611 edge-smoothing of several sub-electrodes that the present embodiment public electrode 610 includes simultaneously, the chamfering with similar round,
It may make that charge is distributed as desired in each sub-electrode 611, without integrated distribution at edge.Certainly other implementations of the present invention
In example, 611 shape of sub-electrode can also be different from the present embodiment, here with no restrictions.
Liquid crystal molecule 701 is formed between first substrate 100 and the second substrate 500, is particularly located at pixel electrode 301 and public affairs
Between common electrode 610.Liquid crystal molecule 701 can be divided into positive polarity liquid crystal molecule and negative polarity liquid crystal molecule.So-called positive polarity liquid crystal
For molecule when there is extra electric field, the long axis of liquid crystal tends to parallel with direction of an electric field.And negative polarity liquid crystal molecule is having extra electric field
When, the long axis of liquid crystal tends to vertical with direction of an electric field.VA mode liquid crystal display screen mainly uses negative polarity liquid crystal molecule at present.This
Embodiment liquid crystal molecule is also negative polarity liquid crystal molecule, in 610 no applied voltage of pixel electrode 301 and public electrode, liquid
Brilliant molecule 701 is arranged along the outer surface of shading outer member, tends to vertical with pixel electrode 301 and public electrode 610, so that light
It can't pass the second substrate 500, liquid crystal display device does not shine；When pixel electrode 301 and public electrode 610 apply voltage,
Liquid crystal molecule 701 rotates, and tends to parallel with pixel electrode 301 and public electrode 610, light is allowed to pass through first substrate
It 100 and the second substrate 500 and projects, liquid crystal display device shines.The present embodiment liquid crystal molecule 701 is by public electrode 610
The aperture 601 of formation and the light-shielding component array 400 for being formed in 200 top of filter layer are divided into several regions, in pixel electrode
301 and public electrode 610 when applying voltage, the liquid crystal molecule 701 in different zones has different heeling conditions, increases
The farmland number of liquid crystal display realizes that multidomain is shown, so as to improve the display view angle of liquid crystal display device 10.
The technical program embodiment also provides a kind of preparation method of liquid crystal display device, to prepare liquid crystal as described above
Display device 10.As shown in fig. 6, the preparation method of the liquid crystal display device includes the following steps：
S01 provides first substrate 100.
S02 forms filter layer 200 above first substrate 100.
S03, forms the first transparency conducting layer 300 above filter layer 200, and first transparency conducting layer 300 includes more
A pixel electrode 301, each pixel electrode 301 are whole face shape.
S04 forms light-shielding component array 400 above filter layer 200.
S05 provides the second substrate 500.
S06, forms the second transparency conducting layer 600 below the second substrate 500, and second transparency conducting layer 600 includes more
A public electrode 610, each public electrode 610 include the sub-electrode 611 of multiple electric connections, are formed in each sub-electrode 611
Aperture 601.
The second substrate 500 is fitted in 100 top of first substrate, so that light-shielding component array 400 and sub-electrode 611 by S07
Projection on first substrate 100 does not overlap, and multiple apertures 601 intersect with multiple shading elements.
S08 pours into liquid crystal molecule between several pixel electrodes 301 and public electrode 610.
It should be noted that above-mentioned each sequence of steps of preparation method is not unique, can be adjusted according to the actual situation.
The present embodiment liquid crystal display device in addition to include above-mentioned component part other than, further include：Polaroid (not shown) takes
To layer (not shown) and backlight (not shown).Polaroid includes the first polaroid and shape for being formed in first substrate 100
At in the second polaroid of the second substrate 500.First polaroid is parallel or perpendicular one another with the second polaroid polarization direction.Orientation
Layer is the one layer of organic polymer film formed on the first substrate 100 of 700 two sides of liquid crystal layer and the second substrate 500, is used
Suede cloth-like material high-speed friction is orientated to realize, common used material is polyimide resin, and polyimide film makes after friction
Liquid crystal molecule 701 generates and good aligns effect.Backlight improves the backlight illumination of liquid crystal display device, improves
Display effect, and can be used in the environment of whether there is or not ambient light.
In conclusion liquid crystal display device 10 and preparation method thereof provided by the embodiment of the present invention forms aperture 601
In on public electrode 610, so that the public electrode 610 in same subpixel area is divided into several regions, each region is due to aperture
601 influence and there is different voltage's distribiutings, therefore liquid crystal molecule 701 tilt distribution in each region is different, and then expands
Display view angle；Meanwhile each pixel electrode 301 is whole face shape, technical process is simple and effective protection first substrate 100 on electricity
Line structure, so that liquid crystal display device performance is stablized.
Above-described specific example has carried out further in detail the purpose of the present invention, technical scheme and beneficial effects
Illustrate, it should be understood that the above is only a specific embodiment of the present invention, be not intended to restrict the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in protection of the invention
Within the scope of.
Claims (10)
1. a kind of liquid crystal display device, which is characterized in that including：
First substrate；
The second substrate opposite with first substrate；
Chromatic filter layer, the chromatic filter layer are located at first substrate close to the side of the second substrate；
First transparency conducting layer, first transparency conducting layer include the pixel electrode of multiple whole face shapes, and are located at colorized optical filtering
Layer is close to the side of the second substrate；
Light-shielding component array, the light-shielding component array include the shading element of multiple array arrangements, and each shading element is certainly
First transparency conducting layer extends to the direction close to the second substrate；
Second transparency conducting layer, second transparency conducting layer are located at the second substrate close to the side of light-shielding component array, described
Second transparency conducting layer includes multiple public electrodes, and each public electrode includes multiple cricoid sub-electrodes, each sub-electrode
It is not overlapped with the projection of light-shielding component array on the first substrate；And
Liquid crystal layer, the liquid crystal layer is between the first transparency conducting layer and the second transparency conducting layer.
2. liquid crystal display device according to claim 1, which is characterized in that the light-shielding component array includes multiple first
Shading element and multiple second shading elements, the projection of the multiple first shading element on the first substrate are located at adjacent two
Between the projection of a pixel electrode, the projection of the multiple second shading element on the first substrate be located at each pixel electrode it
It is interior, each first shading element include the first lightproof unit with extend from the first lightproof unit to the second transparency conducting layer the
One protrusion unit, each second shading element include the second lightproof unit with from the second lightproof unit to the second transparency conducting layer
The second protrusion unit extended.
3. liquid crystal display device according to claim 2, which is characterized in that the outer surface of first protrusion unit is opposite
At an acute angle in first transparency conducting layer, the outer surface of second protrusion unit is relative to first transparency conducting layer
It is at an acute angle.
4. liquid crystal display device according to claim 3, which is characterized in that the size of the multiple first shading element is not
Together.
5. liquid crystal display device according to claim 3, which is characterized in that the size of the multiple second shading element is not
Together.
6. liquid crystal display device according to claim 1, which is characterized in that multiple sub-electrodes of each public electrode are electrical
Connection.
7. liquid crystal display device according to claim 6, which is characterized in that multiple sub-electrodes of the multiple public electrode
Array arrangement, each sub-electrode center are equipped with aperture, form multiple aperture rows and multiple apertures column, the light-shielding component array
It being arranged including multiple shading element rows and multiple shading elements, each shading element row is respectively positioned between two adjacent aperture rows,
Each shading element column are respectively positioned between two adjacent aperture column.
8. liquid crystal display device according to claim 7, which is characterized in that each shading element row is opened with adjacent two
The spacing of hole rows is identical, and each shading element column are identical as the spacing that two adjacent apertures arrange.
9. a kind of liquid crystal display device, which is characterized in that including：
First substrate；
Filter layer is formed in above the first substrate；
Several pixel electrodes are formed in above the filter layer, and each pixel electrode is whole face shape；
Several protrusions are formed in above the filter layer；
The second substrate, positioned at the first substrate top and be oppositely arranged with the first substrate；
Several public electrodes are formed in below the second substrate, and each public electrode includes several sub-electrodes being electrically connected, institute
It states protrusion not overlapping with the projection of the sub-electrode on the first substrate, there is one to open in the middle part of each sub-electrode
Hole, the aperture in several sub-electrodes intersect with several protrusions；And
Liquid crystal molecule, between several pixel electrodes and several public electrodes.
10. a kind of preparation method of liquid crystal display device, which is characterized in that including：
First substrate is provided；
It is rectangular at filter layer on the first substrate；
Several pixel electrodes are formed above the filter layer, each pixel electrode is whole face shape；
Several protrusions are formed above the filter layer；
The second substrate is provided；
Several public electrodes are formed below the second substrate, each public electrode includes several sub-electrodes being electrically connected,
Aperture is respectively formed in each sub-electrode；
The second substrate is fitted in above the first substrate, so that the protrusion and the sub-electrode are described first
Projection on substrate does not overlap, and the aperture in several sub-electrodes intersects with several protrusions；And
Liquid crystal molecule is poured between several pixel electrodes and several public electrodes.
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