CN110221496A - Display device - Google Patents
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- CN110221496A CN110221496A CN201910407922.7A CN201910407922A CN110221496A CN 110221496 A CN110221496 A CN 110221496A CN 201910407922 A CN201910407922 A CN 201910407922A CN 110221496 A CN110221496 A CN 110221496A
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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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
- G02F1/13476—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells in which at least one liquid crystal cell or layer assumes a scattering state
-
- 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
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
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- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Geometry (AREA)
Abstract
The invention discloses a kind of display devices, including first substrate, the second substrate below first substrate is set, the second substrate is being additionally provided with public electrode towards the side of first substrate, pixel electrode and first film transistor are equipped in each first pixel unit, pixel electrode passes through first film transistor and the first scan line and data line electrical connection of closing on first film transistor, the lower section of the second substrate is equipped with third substrate and the polymerised liquid crystal layer between the second substrate and third substrate, third substrate is equipped with first electrode in the side towards polymerised liquid crystal layer, the electric field in polymerised liquid crystal layer by individually controlling region corresponding with each first pixel unit, switch over polymerised liquid crystal layer region corresponding with each first pixel unit respectively can individually between transparent state and mist state.Light leakage of the display device in dark-state can be reduced, increase contrast.
Description
Technical field
The present invention relates to technical field of liquid crystal display, more particularly to a kind of display device.
Background technique
Thin Film Transistor-LCD (Thin Film Transistor-Liquid Crystal Display, TFT-
It LCD) include colored filter substrate (Color Filter Substrate, CF Substrate) and thin film transistor (TFT) array base
Plate (Thin Film Transistor Substrate, TFT Substrate), there are transparent electrodes for substrate relative inner.Two
One layer of liquid crystal molecule (Liquid Crystal, LC) is pressed from both sides between plate base.Liquid crystal display is to be taken by electric field to liquid crystal molecule
To control, change the polarization state of light, and realize penetrating and stopping for optical path by polarizer, realize the purpose of display.
On the other hand, polymer dispersed liquid crystals (Polymer Dispersed Liquid Crystal, PDLC) is used as liquid
Crystalline substance light modulation valve, in recent years by extensive concern and use.It is to mix low molecular weight liquid crystal and prepolymer, is passed through under certain condition
Polymerization reaction forms micron-sized liquid crystal droplet and is evenly dispersed in macromolecule network, recycles the dielectric of liquid crystal molecule each
Anisotropy obtains the material with electro-optic response characteristic, it operates mainly between scattering states and transparent state and has certain ash
Degree.Polymer dispersion type liquid crystal display device has lot of advantages, such as is not required to polarizing film and oriented layer, and preparation process is simple, easily
In large area flexible display etc. is made, at present in optical modulator, temperature-sensitive and pressure-sensitive device, automatically controlled glass, light valve, projection
It has been shown that, e-book etc. are widely applied.Its working principle is that cannot be formed between film in the case of no applied voltage
Rule electric field, the direction of optic axis of liquid crystal particle is random, present disordered state, effective refractive index n0 not with the refraction of polymer
Rate np matching.Incident ray is scattered strongly, and film is in opaque or translucent.It is applied with external voltage, the light of liquid crystal particle
Axis is arranged perpendicular to film surface, i.e., consistent with direction of an electric field.The ordinary refraction index of particle and the refractive index of polymer are basic
Matching, without obvious interface, constitutes a substantially homogeneous medium, so incident light will not scatter, film is transparent.Cause
This, under the driving of extra electric field, PDLC has a switch feature, and transparency can also with applying alive increase and
Along the raising of certain curvilinear style.
In existing display device, backlight module project light be it is entire be radiated on liquid crystal display panel, pass through
The deflection of liquid crystal molecule controls the transmitance of light in each pixel in control liquid crystal display panel, and existing liquid crystal display
Panel cannot accomplish to stop light to pass through completely when dark-state, and the light that backlight module projects at this time is entire irradiation
On liquid crystal display panel, so the phenomenon that liquid crystal display panel will appear light leakage when dark-state, make pair of display device
It is reduced than degree.
Summary of the invention
In order to overcome shortcoming and defect existing in the prior art, the purpose of the present invention is to provide a kind of display device,
To solve the problem of that display device in the prior art reduces contrast the phenomenon that light leakage in dark-state.
The purpose of the invention is achieved by the following technical solution:
The present invention provides a kind of display device, should including first substrate, the second substrate being arranged in below the first substrate
The second substrate is limited and is formed by a plurality of first scan line and multiple data lines mutually insulated intersection towards the side of the first substrate
Multiple first pixel units, the second substrate are additionally provided with public electrode, each first pixel in the side towards the first substrate
Be equipped with pixel electrode and first film transistor in unit, the pixel electrode by the first film transistor and close on this first
The first scan line and data line electrical connection of thin film transistor (TFT), the lower section of the second substrate are equipped with third substrate and are located at and be somebody's turn to do
Polymerised liquid crystal layer between the second substrate and the third substrate, the third substrate are set towards the side of the polymerised liquid crystal layer
There is first electrode, the polymer when first pixel unit is normally shown, with corresponding region above and below first pixel unit
The transparent state of liquid crystal layer polymerize when first pixel unit is black state with this of corresponding region above and below first pixel unit
Thing liquid crystal layer is in mist state.
Further, the public electrode and the pixel electrode are located on the same floor and are the comb electrode with slit,
Any time, the first electrode was with the public electrode for applying identical voltage signal.
Further, which is the pattern structure formed by the multiple first electrode blocks being spaced apart from each other, this
Three substrates are intersected in the side towards the polymerised liquid crystal layer by a plurality of second scan line and a plurality of first common wire mutually insulated
Restriction forms multiple second pixel units, and multiple second pixel unit is corresponding up and down with multiple first pixel unit respectively,
The first electrode block and the second thin film transistor (TFT) are equipped in each second pixel unit, which passes through second film
Transistor is electrically connected with the second scan line and the first common wire for closing on second thin film transistor (TFT).
Further, which is aligned with the projection of a plurality of second scan line in the second substrate,
The multiple data lines are aligned with the projection of a plurality of first common wire in the second substrate.
Further, which is equipped with second electrode in the side towards the polymerised liquid crystal layer.
Further, tetrabasal is equipped between the second substrate and the polymerised liquid crystal layer, second electrode setting exists
The tetrabasal is towards the side of the polymerised liquid crystal layer.
Further, which is equipped with second electrode, the second electrode in the side towards the polymerised liquid crystal layer
For the pattern structure formed by the multiple second electrode blocks being spaced apart from each other, the second substrate is towards the polymerised liquid crystal layer
Side is limited by a plurality of third scan line and a plurality of second common wire mutually insulated intersection and is formed multiple third pixel units this is more
A third pixel unit is corresponding up and down with multiple first pixel unit respectively, and second electricity is equipped in each third pixel unit
Pole block and third thin film transistor (TFT), the second electrode block is by the third thin film transistor (TFT) and closes on the third thin film transistor (TFT)
Third scan line and the second common wire are electrically connected.
Further, which is aligned with the projection of a plurality of third scan line in the second substrate,
The multiple data lines are aligned with the projection of a plurality of second common wire in the second substrate.
Further, tetrabasal is equipped between the second substrate and the polymerised liquid crystal layer, second electrode setting exists
The tetrabasal is towards the side of the polymerised liquid crystal layer.
Further, which is equipped with the first polaroid in the side far from the second substrate, which exists
Side far from the polymerised liquid crystal layer is equipped with the second polaroid, the polarization direction phase of first polaroid and second polaroid
It is mutually vertical.
The beneficial effects of the invention are that: the display device includes first substrate, the second base being arranged in below first substrate
Plate and the liquid crystal layer between first substrate and the second substrate, the second substrate are swept towards the side of liquid crystal layer by a plurality of first
It retouches line and multiple data lines mutually insulated and intersects to limit and form multiple first pixel units, the second substrate is towards the one of liquid crystal layer
Side is additionally provided with public electrode, is equipped with pixel electrode and first film transistor in each first pixel unit, pixel electrode passes through
First film transistor and the first scan line and data line electrical connection for closing on first film transistor, the lower section of the second substrate
Polymerised liquid crystal layer equipped with third substrate and between the second substrate and third substrate, third substrate is towards polymer
The side of liquid crystal layer is equipped with first electrode.By the polymer liquid crystal for individually controlling region corresponding with each first pixel unit
Electric field in layer, makes polymerised liquid crystal layer region corresponding with each first pixel unit respectively individually can be in transparent state and mist
It is switched between state.Brightness of the display device in dark-state can be reduced, light leakage can be reduced, increase the contrast of display device
Add.
Detailed description of the invention
Fig. 1 is the planar structure schematic diagram of pixel electrode in the embodiment of the present invention one；
Fig. 2 is the cross section structure schematic diagram of display device in the initial state in the embodiment of the present invention one；
Fig. 3 is the cross section structure schematic diagram of display device at work in the embodiment of the present invention one；
Fig. 4 is the simulation drawing that light penetrates display device in Fig. 3；
Fig. 5 is the planar structure schematic diagram of first electrode in the embodiment of the present invention two；
Fig. 6 is the cross section structure schematic diagram of display device at work in the embodiment of the present invention two；
Fig. 7 is the cross section structure schematic diagram of display device at work in the embodiment of the present invention three；
Fig. 8 is the cross section structure schematic diagram of display device at work in the embodiment of the present invention four；
Fig. 9 is the planar structure schematic diagram of second electrode in the embodiment of the present invention five；
Figure 10 is the cross section structure schematic diagram of display device at work in the embodiment of the present invention five；
Figure 11 is the cross section structure schematic diagram of display device at work in the embodiment of the present invention six.
Specific embodiment
It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, to the specific embodiment of display device proposed according to the present invention, structure, feature and its effect,
Detailed description are as follows:
[embodiment one]
Fig. 1 is the planar structure schematic diagram of pixel electrode in the embodiment of the present invention one, and Fig. 2 is shown in the embodiment of the present invention one
The cross section structure schematic diagram of showing device in the initial state, Fig. 3 are section of display device at work in the embodiment of the present invention one
Face structural schematic diagram, Fig. 4 are the simulation drawings that light penetrates display device in Fig. 3.
As shown in Figures 1 to 4, the display device that the embodiment of the present invention one provides, including first substrate 10, setting are first
The second substrate 20 of 10 lower section of substrate and the liquid crystal layer 30 between first substrate 10 and the second substrate 20, the second substrate 20
It is limited by a plurality of first scan line 1 and 2 mutually insulated of multiple data lines intersection towards the side of liquid crystal layer 30 and is formed multiple first
Pixel unit P1, the second substrate 20 are additionally provided with public electrode 21, each first pixel unit P1 in the side towards liquid crystal layer 30
It is interior to be equipped with pixel electrode 22 and first film transistor T1, pixel electrode 22 by first film transistor T1 with to close on first thin
The first scan line 1 and data line 2 of film transistor T1 is electrically connected.
Wherein, first substrate 10 is colored filter substrate, and the second substrate 20 is thin-film transistor array base-plate.Liquid crystal layer
Positivity liquid crystal, the i.e. liquid crystal that is positive of dielectric anisotropy are used in 30.First substrate 10 is equipped with towards the side of liquid crystal layer 30
Black matrix (BM) 11 and color blocking layer 12.Color blocking layer 12 for example including red (R), green (G), blue (B) three color color blocking material, it is right respectively
The pixel unit of three color of red, green, blue should be formed.Black matrix 11 is located between the pixel unit of three color of red, green, blue, makes adjacent
It is spaced from each other between pixel unit by black matrix 11.It is more detailed as colored filter substrate and thin-film transistor array base-plate
Refer to the prior art for thin introduction, and which is not described herein again.
Further, the lower section of the second substrate 20 is equipped with third substrate 40 and is located at the second substrate 20 and third substrate 40
Between polymerised liquid crystal layer 50, third substrate 40 is equipped with first electrode 41 in the side towards polymerised liquid crystal layer 50, when the
When one pixel unit P1 is normally shown, the transparent state of polymerised liquid crystal layer 50 with the corresponding region the first pixel unit P1 or more,
When the first pixel unit P1 is black state, the polymerised liquid crystal layer 50 with the corresponding region the first pixel unit P1 or more is in mist state,
Make in polymerised liquid crystal layer 50 region corresponding with each first pixel unit P1 respectively individually can transparent state and mist state it
Between switch over.
In the present embodiment, public electrode 21 is located on the same floor with pixel electrode 22, and public electrode 21 and pixel electrode
22 be the comb electrode with slit, the public electrode 21 of pectination with pixel electrode 22 like two combs are mutually twisted, with
It is formed in-plane-switching mode (In-Plane Switching, IPS), first electrode 41 and public electrode 21 are used at any time
Apply identical d. c. voltage signal (for example, 0V).Pixel electrode 22 is for applying wave above and below centered on d. c. voltage signal
Dynamic ac voltage signal makes pixel electrode 22 have larger pressure difference (example between first electrode 41 and public electrode 21 respectively
For example 5V).
As shown in figure 3, corresponding pixel electrode 22 applies just when the sub-pixel in display device needs normal display
Normal gray scale voltage makes forming face internal electric field between pixel electrode 22 and public electrode 21 (E1 in Fig. 3), positive liquid crystal molecules court
It is deflected to the direction for being parallel to electric field, pixel electrode 22 also can be corresponding in the sub-pixel normally shown with first electrode 41 at this time
Region forms vertical electric field (E2 in Fig. 3), the transparent state of polymerised liquid crystal layer 50 of the sub-pixel corresponding region normally shown,
Make backlight light (light a1 and a3 in Fig. 4) can be normally through polymerised liquid crystal layer 50, and the sub-pixel of other black states is corresponding
The polymerised liquid crystal layer 50 in region is in mist state, makes backlight light (light a2 and a4 in Fig. 4) by polymerised liquid crystal layer 50 in scattered
State is penetrated, the light intensity for entering liquid crystal layer 30 is weakened, to reduce display device light leakage in black state, promotes contrast.
In the present embodiment, first substrate 10 is equipped with the first polaroid 13, third substrate in the side far from liquid crystal layer 30
40 are equipped with the second polaroid 42, the polarisation of the first polaroid 13 and the second polaroid 42 in the side far from polymerised liquid crystal layer 50
Direction is mutually perpendicular to.When making linearly polarized photon by liquid crystal layer 30, there is no the linearly polarized photons of deflection can be by the first polarisation
Piece 13 stops, so that darkly state, the linearly polarized photon to deflect can pass through the first polaroid 13 to corresponding sub-pixel, thus
Corresponding sub-pixel is in illuminated state.
In the present embodiment, first substrate 10 and third substrate 40 with a thickness of 0.3mm, it is right in order to reduce the second substrate 20
The influence of electric field between pixel electrode 22 and first electrode 41, the second substrate 20 with a thickness of 10um, certainly in manufacturing process
In the case where permission, the second substrate 20 is thinner, then the influence to the electric field between pixel electrode 22 and first electrode 41 is lower.The
One substrate 10, the second substrate 20 and third substrate 40 can be made of materials such as glass, acrylic acid and polycarbonate.Common electrical
Pole 21, pixel electrode 22 and first electrode 41 can use the transparent conductive materials such as tin indium oxide (ITO), indium zinc oxide (IZO)
It is made.Polymerised liquid crystal layer 50 for example can be formal polymer dispersed liquid crystals, trans- polymer dispersed liquid crystals, polymer network
Liquid crystal or bistable state cholesteric liquid crystal.
[embodiment two]
Fig. 5 is the planar structure schematic diagram of first electrode in the embodiment of the present invention two, and Fig. 6 is shown in the embodiment of the present invention two
The cross section structure schematic diagram of showing device at work.As shown in Figure 5 and Figure 6, display device provided by Embodiment 2 of the present invention with
The structure and working principle of display device in embodiment one (Fig. 1 and Fig. 3) is essentially identical, the difference is that, in this implementation
In example, first electrode 41 is the pattern structure formed by the multiple first electrode blocks 411 being spaced apart from each other, and third substrate 40 is in court
It is limited and is formed by a plurality of second scan line 3 and a plurality of first common wire, 4 mutually insulated intersection to the side of polymerised liquid crystal layer 50
Multiple second pixel unit P2, multiple second pixel unit P2 respectively with corresponding, the Mei Ge of multiple first pixel unit P1 or more
First electrode block 411 and the second thin film transistor (TFT) T2 are equipped in two pixel unit P2, first electrode block 411 is brilliant by the second film
Body pipe T2 is electrically connected with the second scan line 3 and the first common wire 4 for closing on the second thin film transistor (TFT) T2.Further, a plurality of
First scan line 1 is aligned with projection of a plurality of second scan line 3 in the second substrate 20, multiple data lines 2 and a plurality of first public affairs
The conllinear 4 projection alignment in the second substrate 20.
In the present embodiment, public electrode 21 and pixel electrode 22 are located at different layers, and are spaced apart by insulating layer 23, public
Common electrode 21 is the plane-shape electrode of whole face setting, and pixel electrode 22 is the comb electrode with slit, to form fringe field switching
Mode (Fringe Field Switching, FFS).
Specifically, public electrode 21 is for applying d. c. voltage signal (for example, 0V), pixel electrode 22 and first electrode
41, for applying the ac voltage signal fluctuated up and down centered on d. c. voltage signal, make pixel electrode 22 and first electrode 41
Respectively respectively there is larger pressure difference (for example, 5V) between public electrode 21.It is to be understood that pixel electrode 22 and first
Electrode 41 can apply different voltage signal because pixel electrode 22 and first electrode 41 be respectively with public electrode 21
Between form pressure difference, mutually will not influence.When display device is normally shown, the first scan line 1 and the second scan line 3 synchronize sweep
It retouches, the corresponding first electrode block 411 of the sub-pixel normally shown applies ac voltage signal, makes the polymerization thing liquid of its corresponding region
The transparent state of crystal layer 50, and the corresponding first electrode block 411 of sub-pixel of other black states does not apply voltage signal, makes its correspondence
The polymerised liquid crystal layer 50 in region subtracts in mist state to realize the polymerised liquid crystal layer 50 for controlling single sub-pixel corresponding region
The weak light intensity into liquid crystal layer 30 reduces display device light leakage in black state, promotes contrast.
Relative to embodiment one, the deflection of control polymerised liquid crystal layer 50 and the deflection of liquid crystal layer 30 are mutual in the present embodiment
Influence is smaller, and the effect of display is more preferable with respect to embodiment one.
Those skilled in the art it should be understood that remaining structure and working principle of the present embodiment and embodiment
One is identical, and which is not described herein again.
[embodiment three]
Fig. 7 is the cross section structure schematic diagram of display device at work in the embodiment of the present invention three.As shown in fig. 7, this hair
The structure and working principle of display device and the display device in embodiment two (Fig. 6) that bright embodiment three provides is essentially identical,
The difference is that in the present embodiment, the second substrate 20 is equipped with entire second in the side towards polymerised liquid crystal layer 50
Electrode 61.Second electrode 61 is for applying d. c. voltage signal (for example, 0V), and first electrode 41 is for applying with DC voltage
The ac voltage signal fluctuated up and down centered on signal makes have larger pressure difference (example between first electrode 41 and second electrode 61
For example 5V), it is switched over to control polymerised liquid crystal layer 50 between transparent state and mist state.
Increase second electrode 61 relative to embodiment two, in the present embodiment and polymerize thing liquid with 41 co- controlling of first electrode
The deflection of crystal layer 50, it is therefore prevented that the influence that the second substrate 20 weakens electric field is formed between second electrode 61 and first electrode 41
Electric field it is stronger, the reaction of polymerised liquid crystal layer 50 faster, reduce power consumption.
Those skilled in the art it should be understood that remaining structure and working principle of the present embodiment and embodiment
Two is identical, and which is not described herein again.
[example IV]
Fig. 8 is the cross section structure schematic diagram of display device at work in the embodiment of the present invention four.As shown in figure 8, this hair
The structure and working principle of display device and the display device in embodiment three (Fig. 7) that bright example IV provides is essentially identical,
The difference is that in the present embodiment, tetrabasal 60, the second electricity are equipped between the second substrate 20 and polymerised liquid crystal layer 50
Tetrabasal 60 is arranged in towards the side of polymerised liquid crystal layer 50 in pole 61.In order to reduce the difficulty in technique manufacture, compared to real
Example three is applied, by increasing tetrabasal 60, and forms second electrode 61 on tetrabasal 60, then by the second substrate 20 and the 4th
Substrate 60 is bonded together.
In the present embodiment, third polaroid 62, third polaroid 62 are equipped between the second substrate 20 and tetrabasal 60
(i.e. light transmission shaft is parallel) identical as the polarization direction of the second polaroid 42, because of the polymerization thing liquid of the sub-pixel corresponding region of black state
Crystal layer 50 is in mist state, and backlight light is in scattering state when passing through the polymerised liquid crystal layer 50 of mist state, and a small amount of light can be made to change
Polarization direction, setting third polaroid 62 can further decrease display device light leakage in black state.
Relative to embodiment three, tetrabasal 60 and third polaroid 62 are increased in the present embodiment, because same
The difficulty that making technology is done in substrate two sides is larger, and increasing tetrabasal 60 can reduce process difficulty, third polaroid 62
Display device light leakage in black state can be reduced, increase the contrast of display device.
Those skilled in the art it should be understood that remaining structure and working principle of the present embodiment and embodiment
Three is identical, and which is not described herein again.
[embodiment five]
Fig. 9 is the planar structure schematic diagram of second electrode in the embodiment of the present invention five, and Figure 10 is in the embodiment of the present invention five
The cross section structure schematic diagram of display device at work.As shown in Figures 9 and 10, the embodiment of the present invention five provide display device with
The structure and working principle of display device in embodiment one (Fig. 1 and Fig. 3) is essentially identical, the difference is that, in this implementation
In example, the second substrate 20 is equipped with second electrode 61 in the side towards polymerised liquid crystal layer 50, and second electrode 61 is by mutual
Every multiple second electrode blocks 611 formed pattern structure, the second substrate 20 the side towards polymerised liquid crystal layer 50 by
A plurality of third scan line 5 and a plurality of second common wire, 6 mutually insulated, which intersect to limit, forms more of multiple third pixel unit P3 the
Three pixel unit P3 are corresponding with multiple first pixel unit P1 or more respectively, and second electrode is equipped in each third pixel unit P3
Block 611 and third thin film transistor (TFT) T3, second electrode block 611 is by third thin film transistor (TFT) T3 and closes on third thin film transistor (TFT)
The third scan line 5 of T3 and the second common wire 6 are electrically connected.Further, a plurality of first scan line 1 and a plurality of third scan line
The 5 projection alignment in the second substrate 20, multiple data lines 2 and projection pair of a plurality of second common wire 6 in the second substrate 20
Together.
Specifically, apply d. c. voltage signal (for example, 0V) to first electrode 41, apply to second electrode 61 with direct current
The ac voltage signal fluctuated up and down centered on voltage signal makes respectively to have between second electrode 61 and first electrode 41 larger
Pressure difference (for example, 5V).When display device is normally shown, the first scan line 1 and 5 synchronous scanning of third scan line are normal to show
The corresponding second electrode block 611 of sub-pixel apply ac voltage signal, make the polymerised liquid crystal layer 50 of its corresponding region in saturating
Bright state, and the corresponding second electrode block 611 of sub-pixel of other black states does not apply voltage signal, makes the polymerization of its corresponding region
Thing liquid crystal layer 50 is in mist state, to realize the polymerised liquid crystal layer 50 for controlling single sub-pixel corresponding region, reduces display device
The light leakage in black state promotes contrast.
In the present embodiment, public electrode 21 and pixel electrode 22 are located at different layers, and are spaced apart by insulating layer 23, public
Common electrode 21 is the plane-shape electrode of whole face setting, and pixel electrode 22 is the comb electrode with slit, to form fringe field switching
Mode (Fringe Field Switching, FFS).It is to be understood that public electrode 21 and pixel electrode 22 can also positions
In same layer, because polymerizeing thing liquid by forming pressure difference between second electrode 61 and first electrode 41 in the present embodiment to control
Crystal layer 50, public electrode 21 and pixel electrode 22 are located on the same floor the normal work that will not influence display device in the present embodiment
Make.
Increase second electrode 61 relative to embodiment one, in the present embodiment and polymerize thing liquid with 41 co- controlling of first electrode
The deflection of crystal layer 50, it is therefore prevented that the influence that the second substrate 20 weakens electric field is formed between second electrode 61 and first electrode 41
Electric field it is stronger, the reaction of polymerised liquid crystal layer 50 faster, reduce power consumption.
Those skilled in the art it should be understood that remaining structure and working principle of the present embodiment and embodiment
One is identical, and which is not described herein again.
[embodiment six]
Figure 11 is the cross section structure schematic diagram of display device at work in the embodiment of the present invention six.As shown in figure 11, originally
The basic phase of structure and working principle of display device and the display device in embodiment five (Figure 10) that inventive embodiments five provide
Together, the difference is that, in the present embodiment, tetrabasal 60 is equipped between the second substrate 20 and polymerised liquid crystal layer 50, the
Tetrabasal 60 is arranged in towards the side of polymerised liquid crystal layer 50 in two electrodes 61.In order to reduce the difficulty in technique manufacture, phase
Than embodiment three, by increasing tetrabasal 60, and second electrode 61 is formed on tetrabasal 60, then by the second substrate 20 with
Tetrabasal 60 is bonded together.
In the present embodiment, third polaroid 62, third polaroid 62 are equipped between the second substrate 20 and tetrabasal 60
It is identical as the polarization direction of the second polaroid 42, because the polymerised liquid crystal layer 50 of the sub-pixel corresponding region of black state is in mist state,
Backlight light is in scattering state when passing through the polymerised liquid crystal layer 50 of mist state, and a small amount of light can be made to change polarization direction, setting
Third polaroid 62 can further decrease display device light leakage in black state.
Relative to embodiment five, tetrabasal 60 and third polaroid 62 are increased in the present embodiment, because same
The difficulty that making technology is done in substrate two sides is larger, and increasing tetrabasal 60 can reduce process difficulty, third polaroid 62
Display device light leakage in black state can be reduced, increase the contrast of display device.
Those skilled in the art it should be understood that remaining structure and working principle of the present embodiment and embodiment
Five is identical, and which is not described herein again.
Herein, the nouns of locality such as related up, down, left, right, before and after be located in figure with the structure in attached drawing with
And structure mutual position defines, only for the purpose of expressing the technical solution clearly and conveniently.It should be appreciated that the side
The use of position word should not limit the claimed range of the application.It is also understood that term " first " used herein and " the
Two " etc., it is only used for differentiation nominally, is not limited to quantity and sequence.
The above described is only a preferred embodiment of the present invention, restriction in any form not is done to the present invention, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification,
It is right according to the technical essence of the invention for the equivalent embodiment of equivalent variations, but without departing from the technical solutions of the present invention
Any simple modification, equivalent change and modification made by above embodiments, fall within the scope of protection of the technical scheme of the present invention
Within.
Claims (10)
1. a kind of display device should including first substrate (10), the second substrate (20) being arranged below the first substrate (10)
The second substrate (20) is mutually exhausted by a plurality of first scan line (1) and multiple data lines (2) towards the side of the first substrate (10)
Edge intersect limit forms multiple first pixel units (P1), the second substrate (20) the side towards the first substrate (10) also
Equipped with public electrode (21), pixel electrode (22) and first film transistor (T1) are equipped in each first pixel unit (P1),
The pixel electrode (22) passes through the first film transistor (T1) and the first scan line for closing on the first film transistor (T1)
(1) it is electrically connected with data line (2), which is characterized in that the lower section of the second substrate (20) is equipped with third substrate (40) and position
Polymerised liquid crystal layer (50) between the second substrate (20) and the third substrate (40), the third substrate (40) should in direction
The side of polymerised liquid crystal layer (50) is equipped with first electrode (41), when first pixel unit (P1) is normally shown, with this
Polymerised liquid crystal layer (50) transparent state of one pixel unit (P1) corresponding region up and down, when first pixel unit (P1) is
When black state, with first pixel unit (P1) up and down corresponding region the polymerised liquid crystal layer (50) be in mist state.
2. display device according to claim 1, which is characterized in that the public electrode (21) and pixel electrode (22) position
It in same layer and is the comb electrode with slit, the first electrode (41) and the public electrode (21) are used at any time
Apply identical voltage signal.
3. display device according to claim 1, which is characterized in that the first electrode (41) is multiple by what is be spaced apart from each other
The pattern structure that first electrode block (411) is formed, the third substrate (40) is in the side towards the polymerised liquid crystal layer (50)
It is limited by a plurality of second scan line (3) and a plurality of first common wire (4) mutually insulated intersection and is formed multiple second pixel units
(P2), multiple second pixel unit (P2) is corresponding up and down with multiple first pixel unit (P1) respectively, each second pixel
Be equipped with the first electrode block (411) and the second thin film transistor (TFT) (T2) in unit (P2), the first electrode block (411) pass through this
Two thin film transistor (TFT)s (T2) and the second scan line (3) and the first common wire (4) of closing on second thin film transistor (TFT) (T2) are electrical
Connection.
4. display device according to claim 3, which is characterized in that a plurality of first scan line (1) and this plurality of second
Projection alignment of the scan line (3) in the second substrate (20), the multiple data lines (2) and a plurality of first common wire (4) exist
Projection alignment in the second substrate (20).
5. display device according to claim 3, which is characterized in that the second substrate (20) is towards the polymer liquid crystal
The side of layer (50) is equipped with second electrode (61).
6. display device according to claim 5, which is characterized in that the second substrate (20) and the polymerised liquid crystal layer
(50) tetrabasal (60) are equipped between, the second electrode (61) setting is in the tetrabasal (60) towards the polymerised liquid crystal layer
(50) side.
7. display device according to claim 1, which is characterized in that the second substrate (20) is towards the polymer liquid crystal
The side of layer (50) is equipped with second electrode (61), which is multiple second electrode blocks (611) by being spaced apart from each other
The pattern structure of formation, the second substrate (20) is in the side towards the polymerised liquid crystal layer (50) by a plurality of third scan line
(5) intersect restriction with a plurality of second common wire (6) mutually insulated and form multiple multiple third pixels of third pixel unit (P3)
Unit (P3) is corresponding up and down with multiple first pixel unit (P1) respectively, be equipped in each third pixel unit (P3) this second
Electrode block (611) and third thin film transistor (TFT) (T3), the second electrode block (611) pass through the third thin film transistor (TFT) (T3) and face
The third scan line (5) and the second common wire (6) of the nearly third thin film transistor (TFT) (T3) are electrically connected.
8. display device according to claim 7, which is characterized in that a plurality of first scan line (1) and a plurality of third
Projection alignment of the scan line (5) in the second substrate (20), the multiple data lines (2) and a plurality of second common wire (6) exist
Projection alignment in the second substrate (20).
9. display device according to claim 7, which is characterized in that the second substrate (20) and the polymerised liquid crystal layer
(50) tetrabasal (60) are equipped between, the second electrode (61) setting is in the tetrabasal (60) towards the polymerised liquid crystal layer
(50) side.
10. display device according to any one of claims 1 to 9, which is characterized in that the first substrate (10) is somebody's turn to do separate
The side of the second substrate (20) is equipped with the first polaroid (13), and the third substrate (40) is in the separate polymerised liquid crystal layer (50)
Side is equipped with the second polaroid (42), and first polaroid (13) and the polarization direction of second polaroid (42) are mutually perpendicular to.
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