CN107450238A - Blue phase liquid crystal display device - Google Patents
Blue phase liquid crystal display device Download PDFInfo
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- CN107450238A CN107450238A CN201710648143.7A CN201710648143A CN107450238A CN 107450238 A CN107450238 A CN 107450238A CN 201710648143 A CN201710648143 A CN 201710648143A CN 107450238 A CN107450238 A CN 107450238A
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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
-
- 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
- G02F1/133345—Insulating layers
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133621—Illuminating devices providing coloured light
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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
- G02F1/13439—Electrodes characterised by their electrical, optical, physical properties; materials therefor; method of making
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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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133621—Illuminating devices providing coloured light
- G02F1/133622—Colour sequential illumination
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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)
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- Mathematical Physics (AREA)
- Liquid Crystal (AREA)
Abstract
The present invention provides a kind of blue phase liquid crystal display device, realize that the high colour gamut of high-penetration rate is shown using field sequence display pattern collocation blue phase liquid crystal layer, by first and second electrode that horizontal distribution is set on infrabasal plate, the the 3rd and the 4th electrode is set respectively on infrabasal plate and upper substrate, when being powered up to first and second electrode, potential difference between first and second electrode be present and form horizontal component of electric field, blue phase liquid crystal layer switchs to transparent from dark-state, the light of backlight can be by realizing that colour picture is shown, now the 3rd is not powered with the 4th electrode, the penetrance of display device can be improved as floating electrode presence；When liquid crystal display device needs to carry out the picture switching of different colours, first and second electrode powers off, the the 3rd and the 4th electrode is powered up simultaneously, make potential difference formation vertical electric field be present between the 3rd and the 4th electrode, blue phase liquid crystal layer switchs to dark-state from transparent, light can not be by being effectively improved the hysteresis of blue phase liquid crystal, improving colour mixture problem during color switching.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of blue phase liquid crystal display device.
Background technology
With the development of Display Technique, the plane such as liquid crystal display (Liquid Crystal Display, LCD) display dress
Put because having the advantages that high image quality, power saving, fuselage is thin and has a wide range of application, and be widely used in mobile phone, TV, individual number
The various consumption electronic products such as word assistant, digital camera, notebook computer, desktop computer, turn into the master in display device
Stream.
It is backlight liquid crystal display that liquid crystal display device on existing market is most of, it include liquid crystal display panel and
Backlight module (Backlight Module).The operation principle of liquid crystal display panel is put among the parallel glass substrate of two panels
Liquid crystal molecule is put, there are many tiny electric wires vertically and horizontally among two panels glass substrate, liquid crystal is controlled by whether being powered
Molecular changes direction, the light of backlight module is reflected into generation picture.
Usual liquid crystal display panel is by color film (CF, Color Filter) substrate, thin film transistor (TFT) (TFT, Thin Film
Transistor) substrate, the liquid crystal (LC, Liquid Crystal) that is sandwiched between color membrane substrates and thin film transistor base plate and close
Sealing frame (Sealant) forms, and its moulding process generally comprises：Leading portion array (Array) processing procedure (film, gold-tinted, etching and stripping
Film), stage casing is into box (Cell) processing procedure (TFT substrate is bonded with CF substrates) and back segment module group assembling processing procedure (driving IC and printing electricity
Road plate pressing).Wherein, leading portion Array processing procedures mainly form TFT substrate, in order to control the motion of liquid crystal molecule；Stage casing
Cell processing procedures mainly add liquid crystal between TFT substrate and CF substrates；Back segment module group assembling processing procedure mainly drives IC pressings
With the integration of printed circuit board (PCB), and then drive liquid crystal molecule rotate, display image.
With the fast development of Display Technique, requirement of the people to Display Technique also more and more higher, high-penetration rate and high color
The liquid crystal display device in domain turns into the important directions of future development.At present, to realize the high-penetration rate of liquid crystal display device and height
For field sequence display pattern, field sequence display pattern is back light system is irradiated to liquid crystal display for colour gamut and a kind of technological means for using
The color of the light of panel, which is temporally split, to be carried out wheel and brings the colored display of realization, without chromatic filter layer, greatly improves liquid crystal
The penetrance of showing device, still, it is necessary to which liquid crystal display device has fast-response in sequence display pattern on the scene.
Blue phase liquid crystal (BP, Blue Phase) has the advantage of quick response, and the response time is smaller than 1ms, available for field
Sequence is shown and 3D display etc., however, many shortcomings in itself be present in blue phase liquid crystal, for example, temperature range is narrow, and generally 1-2
DEG C, driving voltage is high, is difficult to return to original state after power-up, that is, hysteresis be present, be difficult in practical application.In order to
The temperature range of blue phase liquid crystal is widened, the temperature range of blue phase can be widened by the method for polymer stabilizing blue phase liquid crystal, in order to reduce
The driving voltage of blue phase liquid crystal, projected electrode can be used to drive, reach the purpose for effectively reducing driving voltage, but hysteresis
It is not well solved always, hysteresis refers to that reset condition can not be returned to by removing voltage after being powered up to blue phase liquid crystal
Phenomenon, that is, remove voltage penetration rate after powering up and be not zero, due to the presence of hysteresis, color handoff procedure can be caused to produce mixed
Color phenomenon.
The content of the invention
It is an object of the invention to provide a kind of blue phase liquid crystal display device, the magnetic hysteresis that can be effectively improved blue phase liquid crystal shows
As improving colour mixture problem during color switching, while can realize that the high colour gamut of high-penetration rate is shown.
To achieve the above object, the present invention provides a kind of blue phase liquid crystal display device, including liquid crystal display panel and is located at
The backlight of the liquid crystal display panel incident side；The liquid crystal display panel include the upper substrate that is oppositely arranged and infrabasal plate,
Blue phase liquid crystal layer between the upper substrate and infrabasal plate；
The infrabasal plate includes first substrate, the 3rd electrode on the first substrate, located at the first substrate
With the insulating barrier on the 3rd electrode and on the insulating barrier and spaced first electrode and second electrode；
The upper substrate includes second substrate and the 4th electrode on the second substrate；
The infrabasal plate is provided with first electrode and the side of second electrode is provided with the 4th electrode with the upper substrate
Side is respectively facing the blue phase liquid crystal layer and set.
The backlight is field sequence backlight, can circulate transmitting redgreenblue light in chronological order.
The first electrode and second electrode are driving electrodes, described when being powered up to the first electrode and second electrode
Potential difference between first electrode and second electrode be present, form horizontal component of electric field between the first electrode and second electrode, now
Blue phase liquid crystal in blue phase liquid crystal layer is anisotropy by isotropic transition, and the light sent from backlight may pass through blue phase liquid crystal
Layer.
When being powered up to the first electrode and second electrode, the 3rd electrode and the 4th electrode are not powered.
When the blue phase liquid crystal display device needs to carry out the picture switching of different colours, the first electrode and the second electricity
Pole is powered off, while the 3rd electrode and the 4th electrode are powered up, and makes current potential be present between the 3rd electrode and the 4th electrode
Difference, forms vertical electric field between the 3rd electrode and the 4th electrode, and the blue phase liquid crystal in blue phase liquid crystal layer is by each level
The opposite sex is changed into perpendicular magnetic anisotropy, and the light sent from backlight can not pass through blue phase liquid crystal layer.
The first substrate is thin-film transistor array base-plate, and the second substrate is glass substrate.
The material of the insulating barrier includes silicon nitride and the one or more in silica.
The first electrode, second electrode, the material of the 3rd electrode and the 4th electrode are tin indium oxide.
The liquid crystal display panel also includes being located at lower polarisation of the first substrate away from the blue phase liquid crystal layer side
Piece and located at upper polaroid of the second substrate away from the blue phase liquid crystal layer side, the absorption axiss of the upper polaroid with
The absorption axiss of the down polaroid are perpendicular.
The upper substrate also include located at the second substrate towards the black matrix" on the blue phase liquid crystal layer side and
Sept on the black matrix".
Beneficial effects of the present invention：A kind of blue phase liquid crystal display device provided by the invention is arranged in pairs or groups using field sequence display pattern
Blue phase liquid crystal layer realizes that the high colour gamut of high-penetration rate is shown, by setting first and second electrode of horizontal distribution on infrabasal plate,
The the 3rd and the 4th electrode is set respectively on infrabasal plate and upper substrate, when being powered up to first and second electrode, first and second electricity
Potential difference between pole be present and form horizontal component of electric field, blue phase liquid crystal layer switchs to transparent from dark-state, and the light of backlight can pass through reality
Existing colour picture shows that now the 3rd is not powered with the 4th electrode, can strengthen first and second electricity as floating electrode presence
The intensity of horizontal component of electric field between pole, improve the penetrance of liquid crystal display device；Blue phase liquid crystal display device needs to carry out difference
During the picture switching of color, the power-off of first and second electrode, while the 3rd and the 4th electrode is powered up, make the 3rd and the 4th electrode
Between potential difference be present and form vertical electric field, blue phase liquid crystal layer switchs to dark-state from transparent, and light can not be by being effectively improved blue phase
The hysteresis of liquid crystal, improve colour mixture problem during color switching.
In order to be further understood that the feature of the present invention and technology contents, refer to below in connection with the detailed of the present invention
Illustrate and accompanying drawing, however accompanying drawing only provide with reference to and explanation use, be not used for being any limitation as the present invention.
Brief description of the drawings
Below in conjunction with the accompanying drawings, by the way that the embodiment of the present invention is described in detail, technical scheme will be made
And other beneficial effects are apparent.
In accompanying drawing,
Fig. 1 is the structural representation of the first embodiment of the blue phase liquid crystal display device of the present invention；
Fig. 2 is the first embodiment of the blue phase liquid crystal display device of the present invention when first electrode and second electrode power up
View；
Fig. 3 is the first embodiment of the blue phase liquid crystal display device of the present invention when the 3rd electrode and the 4th electrode power up
View；
Fig. 4 is the structural representation of the second embodiment of the blue phase liquid crystal display device of the present invention；
Fig. 5 is the type of drive schematic diagram of the blue phase liquid crystal display device of the present invention；
Fig. 6 is horizontal component of electric field distribution schematic diagram when existing blue phase liquid crystal display device shows colour picture；
Horizontal component of electric field distribution schematic diagram when Fig. 7 is the blue phase liquid crystal display device display colour picture of the present invention.
Embodiment
Further to illustrate the technological means and its effect of the invention taken, below in conjunction with being preferable to carry out for the present invention
Example and its accompanying drawing are described in detail.
Fig. 1 is the structural representation of the first embodiment of the blue phase liquid crystal display device of the present invention, as shown in figure 1, described
Blue phase liquid crystal display device includes liquid crystal display panel 70 and the backlight 50 located at the incident side of liquid crystal display panel 70；Institute
State liquid crystal display panel 70 include the upper substrate 10 that is oppositely arranged with infrabasal plate 20, located at the upper substrate 10 and infrabasal plate 20 it
Between blue phase liquid crystal layer 40；
The infrabasal plate 20 includes first substrate 21, the 3rd electrode 63 on the first substrate 21, located at described
Insulating barrier 22 on the electrode 63 of first substrate 21 and the 3rd and on the insulating barrier 22 and spaced first electrode 61
With second electrode 62；
The upper substrate 10 includes second substrate 11 and the 4th electrode 64 on the second substrate 11；
The infrabasal plate 20 is provided with the side of first electrode 61 and second electrode 62 and the upper substrate 10 is provided with the
The side of four electrodes 64 is respectively facing the blue phase liquid crystal layer 40 and set.
Specifically, the side away from the blue phase liquid crystal layer 40 enters for the liquid crystal display panel 70 on the infrabasal plate 20
Light side.
Specifically, the backlight 50 is field sequence backlight, transmitting redgreenblue light can be circulated in chronological order.
Because the liquid crystal material that uses of blue phase liquid crystal display device of the present invention is blue phase liquid crystal, thus upper substrate 10 and under
Both alignment layers need not be set in substrate 20, so as to reduce processing procedure, save production cost.Simultaneously because the blue phase liquid crystal of the present invention is shown
Device uses field sequence display pattern, therefore need not set chromatic filter layer, can further save processing procedure and production cost, and realize
The high colour gamut of high-penetration rate is shown.
Specifically, the first electrode 61 and second electrode 62 are driving electrodes, as shown in Fig. 2 to the first electrode
61 with second electrode 62 power up when, potential difference, the first electrode 61 between the first electrode 61 and second electrode 62 be present
Horizontal component of electric field is formed between second electrode 62, now the blue phase liquid crystal in blue phase liquid crystal layer 40 from isotropic transition for it is each to
The opposite sex, produce birefringence, the light sent from backlight 50 may pass through blue phase liquid crystal layer 40, blue phase liquid crystal display device show it is red/
Green/blue picture.When being powered up to the first electrode 61 and second electrode 62, the 3rd electrode 63 and the 4th electrode 64 are not
Power-up, i.e., described 3rd electrode 63 and the 4th electrode 64 exist as floating electrode, and the presence of floating electrode can improve institute
The intensity of the horizontal component of electric field between first electrode 61 and second electrode 62 is stated, improves the penetrance of blue phase liquid crystal layer 40, Jin Erti
The penetrance of high blue phase liquid crystal display device.
Specifically, because the first electrode 61 and second electrode 62 are in same level EDS maps, therefore the indigo plant of the present invention
Phase liquid crystal display device is plane conversion (IPS, In-Plane-Switching) display, has fast response time, angle of visibility
The advantages that degree width and true color rendition.
Specifically, the picture that the blue phase liquid crystal display device of the present invention needs to carry out different colours (such as red, green, blue color) is cut
When changing, as shown in figure 3, the first electrode 61 powers off with second electrode 62, while to the 3rd electrode 63 and the 4th electrode
64 power-up, make potential difference be present between the 3rd electrode 63 and the 4th electrode 64, in the 3rd electrode 63 and the 4th electrode
Forming vertical electric field between 64, the blue phase liquid crystal in blue phase liquid crystal layer 40 is changed into perpendicular magnetic anisotropy by each level opposite sex,
Now exist without effective birefringence, the light sent from backlight 50 can not pass through blue phase liquid crystal layer 40, blue phase liquid crystal display device
Black picture is shown, so as to be effectively improved the hysteresis of blue phase liquid crystal, improves colour mixture problem during color switching.
Specifically, the mode powered up to the 3rd electrode 63 with the 4th electrode 64 is：To the 3rd electrode 63 and
Another is not powered for one of power-up in four electrodes 64, or to the 3rd electrode 63 and the 4th electrode 64 simultaneously plus
Electricity, as long as making potential difference be present between the 3rd electrode 63 and the 4th electrode 64.
Specifically, the first substrate 21 is thin-film transistor array base-plate, the second substrate 11 is glass substrate.
Specifically, the material of the insulating barrier 22 includes silicon nitride and the one or more in silica.
Preferably, the material of the first electrode 61, second electrode 62, the 3rd electrode 63 and the 4th electrode 64 is oxidation
Indium tin (ITO).
Further, the liquid crystal display panel 70 also includes located at the first substrate 21 away from the blue phase liquid crystal layer
The down polaroid 81 of 40 sides and located at upper polaroid 82 of the second substrate 11 away from the side of blue phase liquid crystal layer 40,
The absorption axiss of the absorption axiss of the upper polaroid 82 and the down polaroid 81 are perpendicular.
Fig. 4 is the structural representation of the second embodiment of the blue phase liquid crystal display device of the present invention, with first shown in Fig. 1
Embodiment is compared, and the difference of the second embodiment is, the upper substrate 10 also includes being located at the second substrate 11 towards institute
State the black matrix" 12 on the side of blue phase liquid crystal layer 40 and the sept 13 on the black matrix" 12.The black square
Battle array 12 can effectively prevent pixel light leak, and the sept 13 can provide suitable liquid crystal cell thickness and serve as liquid crystal barricade.
Fig. 5 is the type of drive schematic diagram of the blue phase liquid crystal display device of the present invention, and the type of drive is：To described first
Electrode 61 and the power-up of second electrode 62 make potential difference formation horizontal component of electric field between the first electrode 61 and second electrode 62 be present
When, blue phase liquid crystal display device shows red green blue picture；When first electrode 61 powers off with second electrode 62, to the 3rd electrode
63 power up with the 4th electrode 64, make potential difference formation vertical electric field between the 3rd electrode 63 and the 4th electrode 64 be present, this
When light can not be by blue phase liquid crystal layer 40, blue phase liquid crystal display device shows black picture, realize blue phase liquid crystal display device
Switching between different colours (red, green, blue color) picture.
Fig. 6 is horizontal component of electric field distribution schematic diagram when existing blue phase liquid crystal display device shows colour picture, and Fig. 7 is this
The blue phase liquid crystal display device of invention shows horizontal component of electric field distribution schematic diagram during colour picture, can by Fig. 6 and Fig. 7 contrast
To find, when showing colour picture, the potential lines of the horizontal component of electric field of blue phase liquid crystal display device of the invention are closeer, electric-field strength
Degree is bigger, the reason is that being provided with the 3rd electrode 63 and the conduct of the 4th electrode 64 in the blue phase liquid crystal display device of the present invention
Floating electrode, when the first electrode 61 and second electrode 62 power up, the 3rd not powered electrode 63 and the energy of the 4th electrode 64
The intensity of the horizontal component of electric field between the first electrode 61 and second electrode 62 is enough improved, improves penetrating for blue phase liquid crystal layer 40
Rate, and then improve the penetrance of blue phase liquid crystal display device.
In summary, the present invention provides a kind of blue phase liquid crystal display device, using field sequence display pattern collocation blue phase liquid crystal
Layer realizes that the high colour gamut of high-penetration rate is shown, by setting first and second electrode of horizontal distribution on infrabasal plate, in infrabasal plate
With setting the 3rd and the 4th electrode on upper substrate respectively, when being powered up to first and second electrode, deposited between first and second electrode
Horizontal component of electric field is formed in potential difference, and blue phase liquid crystal layer switchs to transparent from dark-state, and the light of backlight, which can pass through, realizes colored draw
Face shows that now the 3rd is not powered with the 4th electrode, can strengthen between first and second electrode as floating electrode presence
The intensity of horizontal component of electric field, improve the penetrance of blue phase liquid crystal display device；Blue phase liquid crystal display device needs to carry out different colours
Picture switching when, first and second electrode power-off, while to the power-up of the 3rd and the 4th electrode, make between the 3rd and the 4th electrode
Potential difference be present and form vertical electric field, blue phase liquid crystal layer switchs to dark-state from transparent, and light can not be by being effectively improved blue phase liquid crystal
Hysteresis, improve color switching when colour mixture problem.
It is described above, for the person of ordinary skill of the art, can be with technique according to the invention scheme and technology
Other various corresponding changes and deformation are made in design, and all these changes and deformation should all belong to the claims in the present invention
Protection domain.
Claims (10)
1. a kind of blue phase liquid crystal display device, it is characterised in that including liquid crystal display panel (70) and located at the liquid crystal display
The backlight (50) of panel (70) incident side；The liquid crystal display panel (70) includes the upper substrate (10) being oppositely arranged and lower base
Plate (20), the blue phase liquid crystal layer (40) between the upper substrate (10) and infrabasal plate (20)；
The infrabasal plate (20) includes first substrate (21), the 3rd electrode (63) on the first substrate (21), is located at
The first substrate (21) is with the insulating barrier (22) on the 3rd electrode (63) and on the insulating barrier (22) and is arranged at intervals
First electrode (61) and second electrode (62)；
The upper substrate (10) includes second substrate (11) and the 4th electrode (64) on the second substrate (11)；
The infrabasal plate (20) is provided with the side of first electrode (61) and second electrode (62) with being set on the upper substrate (10)
The side for having the 4th electrode (64) is respectively facing the blue phase liquid crystal layer (40) setting.
2. blue phase liquid crystal display device as claimed in claim 1, it is characterised in that the backlight (50) is field sequence backlight,
Transmitting redgreenblue light can be circulated in chronological order.
3. blue phase liquid crystal display device as claimed in claim 1, it is characterised in that the first electrode (61) and second electrode
(62) it is driving electrodes, when being powered up to the first electrode (61) and second electrode (62), the first electrode (61) and second
Potential difference between electrode (62) be present, horizontal component of electric field is formed between the first electrode (61) and second electrode (62), it is now blue
Blue phase liquid crystal in phase liquid crystal layer (40) is anisotropy by isotropic transition, and the light sent from backlight (50) may pass through indigo plant
Phase liquid crystal layer (40).
4. blue phase liquid crystal display device as claimed in claim 3, it is characterised in that to the first electrode (61) and second
When electrode (62) powers up, the 3rd electrode (63) and the 4th electrode (64) are not powered.
5. blue phase liquid crystal display device as claimed in claim 1, it is characterised in that the blue phase liquid crystal display device need into
During the picture switching of row different colours, the first electrode (61) powers off with second electrode (62), while to the 3rd electrode
(63) powered up with the 4th electrode (64), make potential difference be present between the 3rd electrode (63) and the 4th electrode (64), described
Form vertical electric field between 3rd electrode (63) and the 4th electrode (64), the blue phase liquid crystal in blue phase liquid crystal layer (40) is by horizontal each
Anisotropy is changed into perpendicular magnetic anisotropy, and the light sent from backlight (50) can not pass through blue phase liquid crystal layer (40).
6. blue phase liquid crystal display device as claimed in claim 1, it is characterised in that the first substrate (21) is film crystal
Pipe array base palte, the second substrate (11) are glass substrate.
7. blue phase liquid crystal display device as claimed in claim 1, it is characterised in that the material of the insulating barrier (22) includes nitrogen
SiClx and the one or more in silica.
8. blue phase liquid crystal display device as claimed in claim 1, it is characterised in that the first electrode (61), second electrode
(62), the material of the 3rd electrode (63) and the 4th electrode (64) is tin indium oxide.
9. blue phase liquid crystal display device as claimed in claim 1, it is characterised in that the liquid crystal display panel (70) also includes
Located at down polaroid (81) of the first substrate (21) away from the blue phase liquid crystal layer (40) side and located at second base
Plate (11) away from the blue phase liquid crystal layer (40) side upper polaroid (82), the absorption axiss of the upper polaroid (82) with it is described
The absorption axiss of down polaroid (81) are perpendicular.
10. blue phase liquid crystal display device as claimed in claim 1, it is characterised in that the upper substrate (10) also includes being located at
The second substrate (11) is towards the black matrix" (12) on the blue phase liquid crystal layer (40) side and located at the black matrix"
(12) sept (13) on.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710648143.7A CN107450238A (en) | 2017-08-01 | 2017-08-01 | Blue phase liquid crystal display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710648143.7A CN107450238A (en) | 2017-08-01 | 2017-08-01 | Blue phase liquid crystal display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115047687A (en) * | 2021-03-08 | 2022-09-13 | 电子科技大学 | Array device capable of independently controlling lens unit, imaging apparatus and driving method |
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| CN102937757A (en) * | 2011-08-15 | 2013-02-20 | 群康科技(深圳)有限公司 | Blue-phase liquid crystal display device and drive method thereof |
| CN106019681A (en) * | 2016-07-15 | 2016-10-12 | 深圳市华星光电技术有限公司 | Transparent liquid crystal display device and manufacturing method thereof |
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| CN101726953A (en) * | 2009-12-21 | 2010-06-09 | 友达光电股份有限公司 | Liquid crystal display device |
| US20110261306A1 (en) * | 2010-04-22 | 2011-10-27 | Au Optronics Corporation | Blue Phase Liquid Crystal Display and Method for Fabricating the Same |
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| CN115047687A (en) * | 2021-03-08 | 2022-09-13 | 电子科技大学 | Array device capable of independently controlling lens unit, imaging apparatus and driving method |
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Application publication date: 20171208 |