CN107357106A - A kind of liquid crystal display panel and preparation method thereof, liquid crystal display device - Google Patents
A kind of liquid crystal display panel and preparation method thereof, liquid crystal display device Download PDFInfo
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- CN107357106A CN107357106A CN201710814359.6A CN201710814359A CN107357106A CN 107357106 A CN107357106 A CN 107357106A CN 201710814359 A CN201710814359 A CN 201710814359A CN 107357106 A CN107357106 A CN 107357106A
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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
- G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
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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
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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
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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
- G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/13793—Blue phases
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- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Liquid Crystal (AREA)
- Geometry (AREA)
Abstract
The embodiment of the present invention provides a kind of liquid crystal display panel and preparation method thereof, liquid crystal display device, is related to technical field of liquid crystal display, compared with the prior art, improves and the blue phase liquid crystal near box substrate is acted on by transverse electric field.The liquid crystal display panel includes：Array base palte, to box substrate and it is arranged on the array base palte and the blue phase liquid crystal layer between box substrate；The array base palte includes first electrode and second electrode, and the first electrode and the second electrode are used to produce transverse electric field；It is described that 3rd electrode is included to box substrate.For improving the overall light efficiency of blue-phase liquid crystal display panel and transmitance.
Description
Technical field
The present invention relates to technical field of liquid crystal display, more particularly to a kind of liquid crystal display panel and preparation method thereof, liquid crystal
Display device.
Background technology
As display industry develops rapidly, lcd technology has spread all over the every aspect of people's life, as mobile phone,
Computer, TV, wrist-watch, Pad and electronic tag etc..Blue phase liquid crystal is shown, due to the response time with sub- millisecond, Ke Yishi
Existing field sequential color is shown, the resolution ratio of liquid crystal display device is improved three times, while reduce motion artefact；In addition, blue phase liquid crystal
Not the advantages that display device does not need oriented layer, and technique is simple, optical isotropy during dark-state, and visual angle is big and symmetrical, thus in recent years
To be widely used and develop.
The operation principle that blue phase liquid crystal is shown is the Kerr effect based on blue phase liquid crystal, i.e., macroscopically, blue phase liquid crystal is presented
Optical isotropy, after applying electric field, blue phase liquid crystal molecule arranges along direction of an electric field, and optical anisotropy is presented.In general is blue
Phase liquid crystal display panel, light is incident perpendicular to display panel, when the blue phase liquid crystal by being not powered on, because optics is presented in it
Isotropism, the polarization state of incident light do not change；When applying transverse electric field to blue phase liquid crystal, optics is presented respectively to different in it
Property, for positivity blue phase liquid crystal, the index ellipsoid long axis direction of formation is parallel to direction of an electric field, the direction of propagation with incident light
Vertically, thus it is possible to vary the polarization state of incident light, so as to realize the conversion of bright dark-state, reach the purpose of display.
Current blue-phase liquid crystal display panel, as shown in figure 1, when powering up, the public electrode 40 on array base palte 10
(Common electrodes) and pixel electrode 50 (Pixel electrodes) produce transverse electric field, the liquid crystal in blue phase liquid crystal layer 30 near electrode
Molecule produces effective birefringence, changes the direction of incident ray polarized light, realizes display.However, as shown in figure 1, due to parallel electricity
The electric-field intensity that pole is formed is limited, it is difficult to be deep into from parallel pole farther out to box substrate 20 near, therefore to box substrate 20
The transverse electric field component very little that neighbouring blue phase liquid crystal is subject to, caused birefringence very little, light efficiency is very low, and this results in blue phase liquid crystal
The overall light efficiency of display panel is relatively low, and transmitance is relatively low.
The content of the invention
Embodiments of the invention provide a kind of liquid crystal display panel and preparation method thereof, liquid crystal display device, relatively existing
Technology, improve and the blue phase liquid crystal near box substrate is acted on by transverse electric field.
To reach above-mentioned purpose, embodiments of the invention adopt the following technical scheme that：
First aspect, there is provided a kind of liquid crystal display panel, including：Array base palte, to box substrate and it is arranged on the battle array
Row substrate and the blue phase liquid crystal layer between box substrate；The array base palte includes first electrode and second electrode, described
First electrode and the second electrode are used to produce transverse electric field；It is described that 3rd electrode is included to box substrate.
Preferably, the first electrode and the second electrode are strip shaped electric poles, the first electrode and described second
Electrode is arranged at intervals with layer.
Preferably, the thickness of the first electrode and the thickness of the second electrode differ.
It is further preferred that the thickness of the second electrode is more than the thickness of the first electrode, and the second electrode
Thickness be more than the 3rd electrode thickness.
Preferably, the 3rd electrode is strip shaped electric poles, and the 3rd electrode is located at the first electrode and described second
The region of gap face between electrode.
Preferably, the 3rd electrode is strip shaped electric poles, and the thickness of the second electrode is more than the thickness of the first electrode
Degree, the 3rd electrode and the first electrode are oppositely arranged.
Preferably, the first electrode is the first pixel electrode, and the second electrode is the second pixel electrode, the described 3rd
Electrode is public electrode.
Preferably, the first electrode is the first pixel electrode, and the second electrode is public electrode, the 3rd electrode
For the second pixel electrode.
Second aspect, there is provided a kind of liquid crystal display device, including above-mentioned liquid crystal display panel.
The third aspect, there is provided a kind of preparation method of liquid crystal display panel, including：Sequentially formed on the first underlay substrate
Thin film transistor (TFT) and passivation layer；Form first electrode and second electrode on the passivation layer, the first electrode with it is described thin
The drain electrode electrical connection of film transistor, to form array base palte；Black matrix pattern and flat is sequentially formed on the second underlay substrate
Layer；The 3rd electrode is formed on the flatness layer, to be formed to box substrate；Described to shape on box substrate or the array base palte
Into blue phase liquid crystal layer, and by it is described to box substrate and the array base palte to box.
The embodiment of the present invention provides a kind of liquid crystal display panel and preparation method thereof, liquid crystal display device, due to except battle array
First electrode and second electrode on row substrate can produce transverse electric field, blue phase liquid crystal molecule is produced outside birefringence, set
The 3rd electrode on to box substrate can also produce tilting electric field with first electrode and/or second electrode, and tilting electric field has
Have a transverse electric field component, transverse electric field component can also make blue phase liquid crystal molecule produce birefringence, so to box substrate near
Blue phase liquid crystal just also can be produced birefringence by the effect of transverse electric field, change the polarization state of incident light, therefore LCD
The blue phase liquid crystal layer of plate can be acted on by transverse electric field, so as to improve the overall light efficiency of blue-phase liquid crystal display panel and
Transmitance, and then improve the quality of liquid crystal display panel.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation for liquid crystal display panel that prior art provides；
Fig. 2 (a) is the structural representation one when a kind of liquid crystal display panel provided in an embodiment of the present invention is not powered on；
Fig. 2 (b) is the structural representation two when a kind of liquid crystal display panel provided in an embodiment of the present invention is not powered on；
Structural representation one when Fig. 3 is a kind of liquid crystal display panel power-up provided in an embodiment of the present invention；
Fig. 4 is a kind of structural representation of array base palte provided in an embodiment of the present invention；
Structural representation two when Fig. 5 is a kind of liquid crystal display panel power-up provided in an embodiment of the present invention；
Structural representation three when Fig. 6 is a kind of liquid crystal display panel power-up provided in an embodiment of the present invention；
Fig. 7 is a kind of structural representation one to box substrate provided in an embodiment of the present invention；
Fig. 8 is a kind of structural representation two to box substrate provided in an embodiment of the present invention；
Fig. 9 is a kind of schematic flow sheet of the preparation method of liquid crystal display panel provided in an embodiment of the present invention；
Figure 10 is a kind of structural representation of liquid crystal display device provided in an embodiment of the present invention.
Reference：
01- pixel openings region；02- pixel delimited areas；10- array base paltes；The underlay substrates of 101- first；20- is to box
Substrate；The underlay substrates of 201- second；202- chromatic photoresist patterns；203- black matrix patterns；204- spacer materials；30- blue phase liquid crystals
Layer；40- first electrodes (public electrode)；50- second electrodes (pixel electrode)；The electrodes of 60- the 3rd；70- insulating barriers；80- is flat
Layer；The polaroids of 90- first；The polaroids of 100- second.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
The embodiment of the present invention provides a kind of liquid crystal display panel, as shown in Fig. 2 (a) and Fig. 2 (b), including：Array base palte
10th, to box substrate 20 and it is arranged on array base palte 10 and to the blue phase liquid crystal layer 30 between box substrate 20；Array base palte 10 wraps
First electrode 40 and second electrode 50 are included, first electrode 40 and second electrode 50 can be arranged on the first underlay substrate 101, the
One electrode 40 and second electrode 50 are used to produce transverse electric field；Include the 3rd electrode 60 to box substrate 20, the 3rd electrode 60 can be with
It is arranged on the second underlay substrate 201.
Can be for the type of first electrode 40 and second electrode 50 without limiting it should be noted that first
One electrode 40 is public electrode, and second electrode 50 is pixel electrode；Can also be that first electrode 40 is pixel electrode, second electrode
50 be public electrode.Wherein, pixel electrode electrically connects with the drain electrode of thin film transistor (TFT) on array base palte 10, public electrode and array
Public electrode wire electrical connection on substrate 10.
On this basis, first electrode 40 and second electrode 50 are used to produce transverse electric field, can be as shown in Fig. 2 (a),
First electrode 40 and second electrode 50 are arranged at intervals with layer；Can also be first electrode 40 and second electrode as shown in Fig. 2 (b)
50 different layers are set, and now need to set insulating barrier 70 between first electrode 40 and second electrode 50.When the electricity of first electrode 40 and second
Can be that first electrode 40 is plane-shape electrode, second electrode 50 is strip shaped electric poles when 50 different layer of pole is set；Or first electrode
40 and second electrode 50 be strip shaped electric poles, second electrode 50 is arranged at the interstitial site of first electrode 40.
Second, because first electrode 40 and second electrode 50 are used to produce transverse electric field, therefore first electrode 40 and second
What the voltage applied on electrode 50 necessarily differed, and the electrode 60 of the embodiment of the present invention the 3rd also need to first electrode 40,
Second electrode 50 produces electric field, therefore the voltage on first electrode 40, the electrode 60 of second electrode 50 and the 3rd differs.
For the 3rd electrode 60 shape without limit, can be plane-shape electrode, or strip shaped electric poles.
On this basis, can be that first electrode 40 is pixel electrode, second electrode 50 is the first public electrode, and the 3rd is electric
Pole 60 is the second public electrode；Or first electrode 40 is the first pixel electrode, second electrode 50 is public electrode, and the 3rd is electric
Pole 60 is the second pixel electrode, when the 3rd electrode 60 is the second pixel electrode, now also includes film crystal to box substrate 20
Pipe, the drain electrode of thin film transistor (TFT) electrically connect with the second pixel electrode；Certainly it can also be that first electrode 40 is the first pixel electrode,
Second electrode 50 is the second pixel electrode, and the 3rd electrode 60 is public electrode, and now a pixel region includes two film crystalline substances
Body pipe, when a thin film transistor (TFT) is connected with the first pixel electrode, another thin film transistor (TFT) is connected with the second pixel electrode, the
The voltage that one pixel electrode and the second pixel electrode apply differs.
3rd, first electrode 40 and second electrode 50 are arranged on array base palte 10, and the 3rd electrode 60 is arranged on to box base
On plate 20, when first electrode 40, the electrode 60 of second electrode 50 and the 3rd apply voltage, as shown in figure 3, first electrode 40 and the
Transverse electric field can be produced between two electrodes 50, can produce and incline between the 3rd electrode 60 and first electrode 40 and/or second electrode 50
Oblique electric field, and tilting electric field can be divided into transverse electric field component and vertical electric field component, wherein, transverse electric field can change incidence
The polarization state of light, realize display.
Based on above-mentioned, in order that caused electric-field strength between the 3rd electrode 60 and first electrode 40 and/or second electrode 50
Degree is as big as possible, thus the preferred first electrode 40 of the embodiment of the present invention, the electrode 60 of second electrode 50 and the 3rd are close to blue phase liquid crystal
Layer 30 is set.
4th, it will be understood by those skilled in the art that electric caused by first electrode 40, the electrode 60 of second electrode 50 and the 3rd
When field makes the blue phase liquid crystal molecule in liquid crystal display panel pixel openings region produce effective birefringence, display can be just realized, because
This first electrode 40 and second electrode 50 are arranged on pixel openings region.It is further preferred that first electrode 40, second electrode 50
Pixel openings region is arranged at the 3rd electrode 60.Based on this, first electrode 40, the material of the electrode 60 of second electrode 50 or the 3rd
Material can be ITO (Indium Tin Oxide, tin indium oxide), IZO (Indium Zinc Oxide, indium zinc oxide) or FTO
At least one of (Fluorine-Doped Tin Oxide, Fluorin doped tin ash).
The embodiment of the present invention provides a kind of liquid crystal display panel, due to except the first electrode 40 on array base palte 10 and the
Two electrodes 50 can produce transverse electric field, blue phase liquid crystal molecule is produced outside birefringence, be arranged on to the 3rd on box substrate 20
Electrode 60 can also produce tilting electric field with first electrode 40 and/or second electrode 50, and tilting electric field has transverse electric field point
Amount, transverse electric field component can also make blue phase liquid crystal molecule produce birefringence, so to the blue phase liquid crystal near box substrate 20 just
Also birefringence can be produced by the effect of transverse electric field, changes the polarization state of incident light, therefore the blue phase liquid of liquid crystal display panel
Crystal layer 30 can be acted on by transverse electric field, so as to improve the overall light efficiency of blue-phase liquid crystal display panel and transmitance,
And then improve the quality of liquid crystal display panel.
When being set due to first electrode 40 and 50 different layer of second electrode, one of electrode it is vertical with the 3rd electrode 60 away from
From relatively near, the vertical range of an electrode and the 3rd electrode 60 farther out, the electrode so with the vertical range of the 3rd electrode 60 farther out
And the 3rd electric-field intensity between electrode 60 will be weaker.Based on this, the embodiment of the present invention is preferable, such as Fig. 2 (a) and Fig. 3 institutes
Show, first electrode 40 and second electrode 50 are that strip shaped electric poles, first electrode 40 and second electrode 50 are arranged at intervals with layer.
Wherein, for the spacing between first electrode 40 and second electrode 50 without limiting, first electrode 40 and second
The size of effect of distance electric-field intensity between electrode 50, the spacing between first electrode 40 and second electrode 50 is smaller, electric field
Intensity is bigger, the spacing between electric-field intensity relative set first electrode 40 and second electrode 50 that can be as needed.Herein
On the basis of, the width of width and second electrode 50 for first electrode 40 can be carried out corresponding as needed without limiting
Set.The width of first electrode 40 and the width of second electrode 50 be able to can also be differed with identical.
Herein, with reference to figure 4, array base palte of the embodiment of the present invention 10 includes pixel openings region 01 and opened for defining pixel
The pixel delimited area 02 in mouth region domain 01, first electrode 40 and second electrode 50 are between the pixel openings region 01 of array base palte 10
Every setting.
Because first electrode 40 and second electrode 50 are arranged at intervals with layer, first electrode 40 and the electricity of second electrode 50 and the 3rd
The vertical range of pole 60 is relatively near, thus electric-field intensity caused by first electrode 40, the electrode 60 of second electrode 50 and the 3rd all compared with
Greatly, so liquid crystal display panel blue phase liquid crystal layer 30 be easier acted on by electric field.In addition, the electricity of first electrode 40 and second
Pole 50 is arranged at intervals with layer, therefore first electrode 40 and second electrode 50 can be formed by a patterning processes, so as to simplify
The manufacture craft of liquid crystal display panel.
It is further preferred that as shown in figure 5, the thickness of first electrode 40 and the thickness of second electrode 50 differ.
Wherein, the thickness of first electrode 40 is different with the thickness of second electrode 50, can be that the thickness of first electrode 40 is big
In the thickness of second electrode 50；Can also be that the thickness of second electrode 50 is more than the thickness of first electrode 40, to this without limit
It is fixed.Example, the thickness of first electrode 40 is 0.1 μm, and the thickness of second electrode 50 is 1.5 μm.
Herein, the thickness for first electrode 40 and the thickness of second electrode 50 can enter as needed without limiting
Row relative set.The thickness of first electrode 40 or second electrode 50 is bigger, first electrode 40 or the electrode of second electrode 50 and the 3rd
Vertical range between 60 is smaller, and the electric-field intensity of formation is bigger.
The embodiment of the present invention is by setting the thickness of first electrode 40 and the thickness of second electrode 50 to differ, so that thickness
The vertical range of larger electrode and the 3rd electrode 60 is nearer, is formed between the larger electrode of such thickness and the 3rd electrode 60
The effect of electric field is deeper, so as to so that it is more close to the blue phase liquid crystal molecule near box substrate 20 by transverse electric field
Effect produces birefringence, thus has been obviously improved close to the blue phase liquid crystal light efficiency and transmitance near box substrate 20.
It is further preferred that the thickness of second electrode 50 is more than the thickness of first electrode 40, and the thickness of second electrode 50
More than the thickness of the 3rd electrode 60.
The embodiment of the present invention, the thickness of second electrode 50 are more than the thickness of first electrode 40, such second electrode 50 and the
The effect of the electric field formed between three electrodes 60 is deeper, so as to so that more close to the blue phase liquid crystal near box substrate 20
Molecule is produced birefringence by the effect of transverse electric field.If in addition, the thickness of the 3rd electrode 60 is larger, the distance of the 3rd electrode 60
First electrode 40, the vertical range of second electrode 50 reduce, and the sphere of action of such tilting electric field reduces, therefore the present invention is implemented
The thickness of example preferably second electrode 50 is more than the thickness of the 3rd electrode 60.
The embodiment of the present invention, if the 3rd electrode 60 is plane-shape electrode, the 3rd electrode 60 can be with the electricity of first electrode 40, second
Pole 50 forms vertical electric field, and the electric-field intensity of vertical electric field is more than the 3rd electrode 60 and first electrode 40, second electrode 50 are produced
The electric-field intensity of raw tilting electric field, thus vertical electric field can influence tilting electric field, weaken the transverse electric field component of tilting electric field,
Therefore the electrode 60 of the embodiment of the present invention the 3rd is strip shaped electric poles.
Based on above-mentioned preferable, as shown in Figure 3 and Figure 5, the 3rd electrode 60 be strip shaped electric poles, and the 3rd electrode 60 is positioned at first
The region of gap face between electrode 40 and second electrode 50.
With reference to figure 5, for the horizontal range a between the electrode 60 of first electrode 40 and the 3rd and the electricity of second electrode 50 and the 3rd
The size of horizontal range b between pole 60 can carry out relative set as needed without limiting, the horizontal range a and
The horizontal range b be able to can also be differed with identical.Example, between the electrode 60 of first electrode 40 and the 3rd it is horizontal away from
It it is 1.5 μm from a, the horizontal range b between the electrode 60 of second electrode 50 and the 3rd is 2.5 μm.
Because blue phase liquid crystal molecule can not produce effective birefringence in the presence of vertical electric field, thus incident light can not be made
Polarization state change, therefore when liquid crystal layer is blue phase liquid crystal layer, vertical electric field can not realize display.And the present invention is implemented
In example, due to the region of gap face of the 3rd electrode 60 between first electrode 40 and second electrode 50, thus first is electric
Pole 40 and second electrode 50 can produce tilting electric field with the 3rd electrode 60, and the transverse electric field component of tilting electric field can make
Blue phase liquid crystal molecule produces effective birefringence, therefore gap of the 3rd electrode 60 between first electrode 40 and second electrode 50
The region of face, increase the area in the region acted on by transverse electric field blue phase liquid crystal molecule near box substrate 20.
Preferably, as shown in fig. 6, the 3rd electrode 60 is strip shaped electric poles, the thickness of second electrode 50 is more than first electrode 40
Thickness, the 3rd electrode 60 and first electrode 40 are oppositely arranged.
Wherein, the 3rd electrode 60 and first electrode 40 are oppositely arranged, and can be the thickness directions along liquid crystal display panel, the
Three electrodes 60 and first electrode 40 are completely overlapped or partly overlap.
It should be noted that the thickness and first electrode 40, second electrode of second electrode 50 can be adjusted as needed
50th, relative distance between the 3rd electrode 60 adjusts the direction of electric field and intensity.
Because the thickness of second electrode 50 is more than the longitudinal direction of the thickness of first electrode 40, the 3rd electrode 60 and second electrode 50
The longitudinal pitch being smaller than between the electrode 60 of first electrode 40 and the 3rd, thus can between the electrode 60 of second electrode 50 and the 3rd
To approximately form transverse electric field.On this basis, the 3rd electrode 60 is oppositely arranged with first electrode 40, due to the 3rd electrode 60
Increase with the horizontal range of second electrode 50, thus can be formed between the 3rd electrode 60 and second electrode 50 approximately transversely electric
, and the field regime formed is bigger, so as to so that more blue phase liquid crystal molecules are acted on by stronger transverse electric field.
Preferably, the 3rd electrode 60 is located in pixel openings region 01.
The embodiment of the present invention, because first electrode 40 and second electrode 50 are located in pixel openings region 01, if the 3rd electricity
Pole 60 also is located in pixel openings region 01, then the 3rd electrode 60 and the horizontal range of first electrode 40 and second electrode 50 compared with
Closely, thus caused transverse electric field electric-field intensity it is bigger, therefore can make pixel openings region 01 to box substrate 20 near
More blue phase liquid crystal molecules acted on by transverse electric field, and then be more beneficial for being lifted liquid crystal display panel entirety light efficiency,
Lift transmitance.
Based on above-mentioned, as shown in Figure 7 and Figure 8, the second underlay substrate 201 can also be included to box substrate 20 and is arranged on
Chromatic photoresist pattern 202 and black matrix pattern (Black matrix, letter between second underlay substrate 201 and the 3rd electrode 60
Claim BM) 203；3rd electrode 60 is located on chromatic photoresist pattern 202.
Wherein, chromatic photoresist pattern 202 can be that red light hinders pattern, green photoresistance pattern or blue light resistance pattern.
Herein, because chromatic photoresist pattern 202 is located at pixel openings region 01, black matrix pattern 203 defines positioned at pixel
Region 02, the 3rd electrode 60 are located on chromatic photoresist pattern 202, then the 3rd electrode 60 is located at pixel openings region 01.
It should be noted that in order to ensure caused electric field between the 3rd electrode 60 and first electrode 40 or second electrode 50
Uniform, thus the present invention implement it is preferable, as shown in fig. 7, can be in the 3rd electrode 60 and chromatic photoresist pattern 202 and black
Flatness layer (Over Coat, abbreviation OC) 80 is set between matrix pattern 203.
The embodiment of the present invention, because liquid crystal display panel includes chromatic photoresist pattern 202 to box substrate 20, thus can be with
Realize colored display.
The embodiment of the present invention provides a kind of liquid crystal display device, including above-mentioned liquid crystal display panel.
Wherein, though liquid crystal display device provided in an embodiment of the present invention can be display motion (for example, video) or
Fixed (for example, rest image) no matter and the image of word or picture any device.More particularly, it is contemplated that the reality
Apply example to may be implemented in a variety of electronic installations or associate with a variety of electronic installations, a variety of electronic installations are such as (but not limited to)
Mobile phone, wireless device, personal digital assistant (PDA), hand-held or portable computer, gps receiver/omniselector, phase
Machine, MP4 video players, video camera, game console, wrist-watch, clock, calculator, televimonitor, flat-panel monitor, meter
Calculation machine monitor, automotive displays (for example, odometer display etc.), navigator, Cockpit Control Unit and/or display, camera
The display display of rear view camera (for example, in vehicle), electronic photographs, electronic bill-board or the direction board of view, projecting apparatus,
Building structure, packaging and aesthetic structures (for example, display for the image of a jewelry) etc..
The embodiment of the present invention provides a kind of liquid crystal display device, due to except the first electrode 40 on array base palte 10 and the
Two electrodes 50 can produce transverse electric field, blue phase liquid crystal molecule is produced outside birefringence, be arranged on to the 3rd on box substrate 20
Electrode 60 can also produce tilting electric field with first electrode 40 and/or second electrode 50, and tilting electric field has transverse electric field point
Amount, transverse electric field component can also make blue phase liquid crystal molecule produce birefringence, so to the blue phase liquid crystal near box substrate 20 just
Also birefringence can be produced by the effect of transverse electric field, changes the polarization state of incident light, therefore the blue phase liquid of liquid crystal display panel
Crystal layer 30 can be acted on by transverse electric field, so as to improve the overall light efficiency of blue-phase liquid crystal display panel and transmitance.
The embodiment of the present invention also provides a kind of preparation method of liquid crystal display panel, as shown in figure 9, including：
S100, thin film transistor (TFT) and passivation layer (Passivation, abbreviation are sequentially formed on the first underlay substrate 101
PVX)。
Wherein, thin film transistor (TFT) includes source electrode, drain electrode, active layer (Active), grid (Gate) and gate insulation layer
(Gate Insulator, abbreviation GI).Herein, grid, gate insulation layer, active layer, source electrode and drain electrode can be sequentially formed；Also may be used
To sequentially form active layer, source electrode and drain electrode, gate insulation layer, grid.
In addition, for passivation layer material without limiting, such as can be in silicon nitride, silica or silicon oxynitride
It is at least one.
S101, first electrode 40 and second electrode 50, first electrode 40 and the leakage of thin film transistor (TFT) are formed over the passivation layer
Pole electrically connects, to form array base palte 10.
Herein, first electrode 40 and second electrode 50 can be spaced to be formed simultaneously；First electrode 40 can also be initially formed, then
Form second electrode 50.
Wherein, first electrode 40 electrically connects with the drain electrode of thin film transistor (TFT), and first electrode 40 is pixel electrode, then the second electricity
Pole 50 is public electrode.
S102, as shown in fig. 7, sequentially forming black matrix pattern 203 and flatness layer 80 on the second underlay substrate 201.
Wherein, chromatic photoresist pattern can also be formed before forming flatness layer 80 after black matrix pattern 203 is formed
202.Chromatic photoresist pattern 202 can be that red light hinders pattern, green photoresistance pattern or blue light resistance pattern.
Herein, the material of flatness layer 80 can be at least one of silicon nitride, silica or silicon oxynitride.
S103, the 3rd electrode 60 is formed on flatness layer 80, to be formed to box substrate 20.
Wherein, after the 3rd electrode 60 is formed, the above method also include as shown in Figure 8 on box substrate 20 formed every
Underbed (PostSpacer, abbreviation PS) 204.
It should be noted that array base palte 10 can be initially formed, re-form to box substrate 20；It can also be initially formed to box base
Plate 20, forming array base palte 10.
S104, to forming blue phase liquid crystal layer 30 on box substrate 20 or array base palte 10, and will be to box substrate 20 and array
Substrate 10 is to box.
Wherein it is possible to forming blue phase liquid crystal layer 30 on box substrate 20 or array base palte 10 by way of instillation.This
Outside, now sealant can be coated on array base palte 10 to forming blue phase liquid crystal layer 30 on box substrate 20；Can also
Blue phase liquid crystal layer 30 is formed on array base palte 10, now can coat sealant on to box substrate 20.
After step s 104, the preparation method of above-mentioned liquid crystal display panel can also include：As shown in Figure 10, first
Side of the underlay substrate 101 away from blue phase liquid crystal layer 30 forms the first polaroid 90, in the second underlay substrate 201 away from blue phase liquid
The side of crystal layer 30 forms the second polaroid 100.
The preparation method of liquid crystal display panel is discussed in detail in a kind of specific embodiment presented below：
Grid, gate insulation layer, active layer, source electrode and drain electrode, passivation layer are sequentially formed on the first underlay substrate 101；
The first electrode 40 and second electrode 50 being intervally arranged are formed on passivation layer, to form array base palte 10, first electrode 40 passes through
Via on passivation layer electrically connects with drain electrode；Wherein, the width of first electrode 40 is 3.0 μm, and thickness is 0.1 μm, second electrode
50 width is 3.0 μm, and thickness is 1.5 μm, and the spacing of first electrode 40 and second electrode 50 is 3.5 μm.In the second substrate base
Black matrix pattern 203 is formed on plate 201, coats flatness layer 80 afterwards, the 3rd electrode 60 is formed on flatness layer 80, with formation pair
Box substrate 20；Wherein, the horizontal range of the 3rd electrode 60 and first electrode 40 is 0.5 μm, the 3rd electrode 60 and second electrode 50
Horizontal range be 3.0 μm, the height of the 3rd electrode 60 is 0.5 μm.To forming spacer material 204 on box substrate 20, and by indigo plant
Sealant is coated on array base palte 10 by phase liquid crystal drop on to box substrate 20, lucifuge operation.By drip have liquid crystal to box base
After plate 20 and array base palte 10 coated with sealant are to box, ultraviolet irradiation is carried out, so as to form liquid crystal display panel.
The embodiment of the present invention provides a kind of preparation method of liquid crystal display panel, due to electric formed with first on array base palte
Pole 40 and second electrode 50, on box substrate 20 formed with the 3rd electrode 60, thus except the first electrode on array base palte 10
40 and second electrode 50 can produce transverse electric field, make blue phase liquid crystal molecule produce birefringence outside, be arranged on on box substrate 20
The 3rd electrode 60 tilting electric field can also be produced with first electrode 40 and/or second electrode 50, and tilting electric field has laterally
Electric field component, transverse electric field component can also make blue phase liquid crystal molecule produce birefringence, so to the blue phase near box substrate 20
Liquid crystal just can also produce birefringence, change the polarization state of incident light, therefore the blue phase liquid crystal layer 30 of liquid crystal display panel can
Acted on by transverse electric field, so as to improve the overall light efficiency of blue-phase liquid crystal display panel and transmitance.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
- A kind of 1. liquid crystal display panel, it is characterised in that including：Array base palte, to box substrate and it is arranged on the array base Plate and the blue phase liquid crystal layer between box substrate；The array base palte includes first electrode and second electrode, and the first electrode and the second electrode are used to produce transverse direction Electric field；It is described that 3rd electrode is included to box substrate.
- 2. liquid crystal display panel according to claim 1, it is characterised in that the first electrode and the second electrode are equal For strip shaped electric poles, the first electrode and the second electrode are arranged at intervals with layer.
- 3. liquid crystal display panel according to claim 2, it is characterised in that the thickness of the first electrode and described second The thickness of electrode differs.
- 4. liquid crystal display panel according to claim 3, it is characterised in that the thickness of the second electrode is more than described the The thickness of one electrode, and the thickness of the second electrode is more than the thickness of the 3rd electrode.
- 5. according to the liquid crystal display panel described in claim any one of 2-4, it is characterised in that the 3rd electrode is strip electricity Pole, the region of gap face of the 3rd electrode between the first electrode and the second electrode.
- 6. according to the liquid crystal display panel described in claim any one of 2-4, it is characterised in that the 3rd electrode is strip electricity Pole, the thickness of the second electrode are more than the thickness of the first electrode, and the 3rd electrode and the first electrode are set relatively Put.
- 7. liquid crystal display panel according to claim 1, it is characterised in that the first electrode is the first pixel electrode, The second electrode is the second pixel electrode, and the 3rd electrode is public electrode.
- 8. liquid crystal display panel according to claim 1, it is characterised in that the first electrode is the first pixel electrode, The second electrode is public electrode, and the 3rd electrode is the second pixel electrode.
- 9. a kind of liquid crystal display device, it is characterised in that including the liquid crystal display panel described in claim any one of 1-8.
- A kind of 10. preparation method of liquid crystal display panel, it is characterised in that including：Thin film transistor (TFT) and passivation layer are sequentially formed on the first underlay substrate；First electrode and second electrode, the first electrode and the drain electrode electricity of the thin film transistor (TFT) are formed on the passivation layer Connection, to form array base palte；Black matrix pattern and flatness layer are sequentially formed on the second underlay substrate；The 3rd electrode is formed on the flatness layer, to be formed to box substrate；Described to forming blue phase liquid crystal layer on box substrate or the array base palte, and by described to box substrate and the array base Plate is to box.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109254466A (en) * | 2018-11-16 | 2019-01-22 | 合肥京东方光电科技有限公司 | Liquid crystal display panel and preparation method thereof, display device |
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Application publication date: 20171117 |