CN110456581A - A kind of display panel and display equipment - Google Patents
A kind of display panel and display equipment Download PDFInfo
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- CN110456581A CN110456581A CN201810427974.6A CN201810427974A CN110456581A CN 110456581 A CN110456581 A CN 110456581A CN 201810427974 A CN201810427974 A CN 201810427974A CN 110456581 A CN110456581 A CN 110456581A
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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
- G02F1/134336—Matrix
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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
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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)
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Abstract
The invention discloses a kind of display panel and display equipment, at high cost, the problem that thickness is big and light transmission rate is low that solves to exist in the prior art double cell display panels.In the embodiment of the present invention, display panel only includes two polaroids, eliminate the polaroid between liquid crystal display panel and liquid crystal light valve panel, and dichroic dye is adulterated in the liquid crystal layer of liquid crystal light valve panel, it is strong to the absorbing incident light ability for being parallel to molecular long axis using dichroic dye, and the characteristic weak to the absorbing incident light ability perpendicular to molecular long axis, electric field is formed by the electrode structure of liquid crystal light valve panel, so that liquid crystal molecule rotates in the interface for being parallel to incident light direction, so, the direction for being incident on the incident light of liquid crystal display panel can be made constant, the control to luminous flux may be implemented simultaneously, the number of polaroid in display panel can so be reduced, reduce cost, reduce the thickness of display panel, light transmission rate is also improved simultaneously.
Description
Technical field
The present invention relates to field of display technology, in particular to a kind of display panel and display equipment.
Background technique
Liquid crystal display is the display equipment of planar ultra-thin, it is made of a certain number of colored or monochrome pixels, is placed
In front of light source or reflecting surface.Liquid crystal display power consumption is very low, therefore is favored by engineer, suitable for using the electricity of battery
Sub- equipment.Its cardinal principle is to generate point, line, surface cooperation back fluorescent tube with electric current stimulation liquid crystal molecule to be constituted picture.
Liquid crystal display panel is liquid crystal display panel an important factor for determining LCD brightness, contrast, color, visible angle
Quality, the quality of technology are also related to the height of liquid crystal display overall performance, so liquid crystal display panel is that liquid crystal display is most main
The composition wanted.
It is horizontal that black field performance is referred to as black position: referring to that picture, actually can be " black " to assorted when showing most dark colour
Degree.Lift the simple case in a reality: the classmate for often playing game should be clearer, reads the stage in game,
Typically black state, screen lower section generally will appear the white printed words of " Now Loading ".This when is test liquid crystal
The best opportunity of the black field performance of panel.
Since structure limits, liquid crystal display panel is wanted generally by the performance shielded to realize black to white light
Show that real black is very difficult.In order to improve the black field expressive force of liquid crystal display panel, existing method is: multi partition back
Light mode, using vertical backlight module, by the number for increasing LED (Light Emitting Diode, light emitting diode) lamp
And respectively drive to realize local dimming (local dimming), such mode is limited to the size of LED light, and needs a large amount of
The driving circuit of LED is integrated, causes the increase of complete machine thickness and cost is significantly promoted.
Given this it has been proposed that the scheme of double cell (unit) display, i.e., double by display panel and light valve panel integrated one
Cell display panel, to realize the purpose for promoting black field expressive force, million zonal controls, the thickness for reducing complete machine.But at present
Dual platen generally uses three layers or four layers of polaroid, increases cost, reduces light transmission rate.
In conclusion existing in the prior art, double cell display panels are at high cost, and thickness is big and light transmission rate is low asks
Topic.
Summary of the invention
The present invention provides a kind of display panel and display equipment, and double cell display surfaces exist in the prior art to solve
Plate is at high cost, the problem that thickness is big and light transmission rate is low.
In a first aspect, the embodiment of the present invention provides a kind of display panel, including liquid crystal display panel and liquid crystal light valve panel,
The liquid crystal light valve panel is located at the incident side of the liquid crystal display panel, wherein the liquid crystal light valve panel deviates from the liquid
The side of LCD panel is equipped with the first polaroid, and the liquid crystal display panel is equipped with away from the side of the liquid crystal light valve panel
Second polaroid；The liquid crystal light valve panel includes the liquid crystal layer doped with dichroic dye.
Above-mentioned display panel only includes two polaroids, eliminates between liquid crystal display panel and liquid crystal light valve panel
Polaroid, and dichroic dye is adulterated in the liquid crystal layer of liquid crystal light valve panel.In the first substrate to liquid crystal light valve panel
After power supply is provided, electric field can be formed between first substrate and the second substrate, under electric field action, first substrate and the second substrate
Between liquid crystal layer in liquid crystal molecule the deflection of certain angle can occur, adulterate point of dichroic dye in the liquid crystal layer
Son can also deflect therewith, and when there is incident light to pass through liquid crystal layer, the molecule of the dichroic dye in liquid crystal layer can absorb
Incident light, and be applied on liquid crystal layer electric field level difference when, angle that the molecule of dichroic dye is deflected with liquid crystal molecule
Degree is also different, and the molecule of dichroic dye is most strong to the absorbing incident light ability for being parallel to molecular long axis, and to perpendicular to
The absorbing incident light ability of molecular long axis is most weak, the control to liquid crystal light valve luminous flux so may be implemented, and then can reduce
The number of polaroid, reduces cost in display panel, reduces the thickness of display panel, while also improving light transmission rate.
In one possible implementation, the molecule of the dichroic dye is to the incident light for being parallel to molecular long axis
Absorbability is most strong, and most weak to the absorbing incident light ability perpendicular to molecular long axis.
Doped with dichroic dye in above-mentioned display panel, the molecule of the dichroic dye is long to molecule is parallel to
The absorbing incident light ability of axis is most strong, and most weak to the absorbing incident light ability perpendicular to molecular long axis.In this way, when in liquid crystal layer
Liquid crystal molecule deflect under electric field action after, the molecule of dichroic dye can deflect therewith, the light quantity of absorption
It changes, to achieve the purpose that control luminous flux.
In one possible implementation, the liquid crystal light valve panel includes the first substrate being oppositely arranged and the second base
Plate, the liquid crystal layer doped with dichroic dye is between the first substrate and the second substrate, and described first
Substrate and/or the second substrate are equipped with for controlling in the liquid crystal layer liquid crystal molecule in the interface for being parallel to incident light direction
The electrode structure of rotation；
When the liquid crystal molecule in the liquid crystal layer rotates under the electric field action that the electrode structure is formed, described two to
Turning for direction occurs with the rotation of the liquid crystal molecule in the liquid crystal layer doped with dichroic dye for the molecule of color dyestuff
Become.
In above-mentioned display panel, the liquid crystal layer doped with dichroic dye of liquid crystal light valve panel is located at first base
Between plate and the second substrate, the electrode structure that first substrate and/or the second substrate are equipped with forms electric field, so that liquid crystal point
Son rotates in the interface for being parallel to incident light direction, in this way, can be incident on the direction of the incident light of liquid crystal display not
Become, while the control to luminous flux may be implemented, can so reduce the number of polaroid in display panel, reduce cost, subtract
The thickness of small display panel, while also improving light transmission rate.
In one possible implementation, the electrode structure forms tft array control in the liquid crystal light valve panel
Electrode structure processed, so that the liquid crystal light valve panel forms multiple light valve pixel units of array distribution, the LCD display
Plate has multiple display pixel cells of array distribution, the size of the light valve pixel unit and the ruler of the display pixel cells
It is very little identical；Alternatively, the size of the light valve pixel unit is greater than the size of the display pixel cells.
Liquid crystal light valve panel forms tft array coordination electrode structure in above-mentioned display panel, while on liquid crystal display panel
Also there is similar tft array coordination electrode structure, the size for the multiple light valve pixel units being wherein distributed on liquid crystal light valve panel
It is identical as the size of the display pixel cells on liquid crystal display panel, or greater than the display pixel cells on liquid crystal display panel
Size.So, it is ensured that liquid crystal light valve panel after applying an electric field can be real to the luminous flux for being incident on liquid crystal display panel
Now effective control.
In one possible implementation, the electrode structure includes public electrode and pixel electrode, described first
Same layer is arranged in substrate；Or the pixel electrode is arranged in the first substrate, the public electrode setting is described the
In two substrates.
The electrode structure of above-mentioned liquid crystal light valve panel includes public electrode and pixel electrode, wherein public electrode and pixel electricity
Same layer can extremely be arranged in first substrate, by public electrode and pixel electrode can same layer is arranged in first substrate when,
The thickness of display panel can be further decreased, simultaneously because public electrode and pixel electrode same layer can be set in first substrate
It sets, then when preparing display panel, public electrode and pixel electrode can be purchased public electrode and pixel electrode simultaneously, in this way
Preparation flow can further be simplified.
In one possible implementation, the display panel further includes being located at the liquid crystal light valve panel away from described
The backlight of the side of liquid crystal display panel.
The backlight of above-mentioned display panel can provide display light source used for display panel.
In one possible implementation, the backlight is directly-down light source or side entering type light source.
The backlight of above-mentioned backlight display panel is directly-down light source or side entering type light source.When the backlight of display panel
When for side entering type light source, it is also necessary to increase optical waveguide layer.
In one possible implementation, the dichroic dye is dichroism azo dyes.
Above-mentioned dichroic dye can be dichroism azo dyes, and azo-type dichroic dye is due to that can provide
High order parameter has many advantages, such as that solubility is preferable in liquid crystal, prepares simple, is currently preferred liquid crystalline dyes.
In one possible implementation, the dichroism azo dyes is azobenzene dichroic dye.
The above-mentioned chromotropism azo dyes being doped into liquid crystal light valve panel can be azobenzene dichroic dye.Liquid crystal
The liquid crystal layer of light valve panel was after adulterating azobenzene dichroic dye, if there is backlight, and when in the liquid crystal layer
When liquid crystal molecule rotates under electric field action, azobenzene dichroic dye is in the liquid crystal layer doped with dichroic dye
Liquid crystal molecule rotation and the transformation in direction occurs.
It in one possible implementation, include nematic liquid crystal, dichroism in the liquid crystal layer of liquid crystal light valve panel
Dyestuff and chipal compounds.
When carrying out dichroic dye doping, dichroic dye, nematic liquid crystal and chipal compounds are mixed simultaneously
It is dissolved in dichloromethane solvent, then using ultrasonic agitation until sample sufficiently dissolves mixing, then places in a vacuum drying oven
Dry preparation finally pours into mixture good sample in the liquid crystal layer cavity of liquid crystal light valve panel.
Second aspect, the embodiment of the present invention provide a kind of display equipment, including above-mentioned display panel.
Above-mentioned display equipment includes above-mentioned display panel, and display panel provided in an embodiment of the present invention can be incident on
The control to luminous flux is realized while the direction of the incident light of liquid crystal display is constant, can so reduce polarisation in display panel
The number of piece, reduces cost, reduces the thickness of display panel, while also improving light transmission rate.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly introduced, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill in field, without any creative labor, it can also be obtained according to these attached drawings
His attached drawing.
Fig. 1 is the first existing double cell display panel structure schematic diagram in the embodiment of the present invention；
Fig. 2 is the first existing double cell display panel structure schematic diagram in the embodiment of the present invention；
Fig. 3 is a kind of brief configuration schematic diagram of the display panel provided in the embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of the display panel provided in the embodiment of the present invention.
Specific embodiment
Liquid crystal display is the display equipment of planar ultra-thin, it is made of a certain number of colored or monochrome pixels, is placed
In front of light source or reflecting surface.Liquid crystal display power consumption is very low, therefore is favored by engineer, suitable for using the electricity of battery
Sub- equipment.Its cardinal principle is to generate point, line, surface cooperation back fluorescent tube with electric current stimulation liquid crystal molecule to be constituted picture.
Liquid crystal display panel is liquid crystal display panel an important factor for determining LCD brightness, contrast, color, visible angle
Quality, the quality of technology are also related to the height of liquid crystal display overall performance, so liquid crystal display panel is that liquid crystal display is most main
The composition wanted.
It is horizontal that black field performance is referred to as black position: referring to that picture, actually can be " black " to assorted when showing most dark colour
Degree.Lift the simple case in a reality: the classmate for often playing game should be clearer, reads the stage in game,
Typically black state, screen lower section generally will appear the white printed words of " Now Loading ".This when is test liquid crystal
The best opportunity of the black field performance of panel.
Since structure limits, liquid crystal display panel is wanted generally by the performance shielded to realize black to white light
Show that real black is very difficult.In order to improve the black field expressive force of liquid crystal display panel, existing method is: multi partition back
Light mode, using vertical backlight module, by the number for increasing LED (Light Emitting Diode, light emitting diode) lamp
And respectively drive to realize local dimming (local dimming), such mode is limited to the size of LED light, and needs a large amount of
The driving circuit of LED is integrated, causes the increase of complete machine thickness and cost is significantly promoted.
Given this it has been proposed that the scheme of double cell (unit) display, i.e., double by display panel and light valve panel integrated one
Cell display panel, to realize the purpose for promoting black field expressive force, million zonal controls, the thickness for reducing complete machine.But at present
Dual platen generally uses three layers or four layers of polaroid, increases cost, reduces light transmission rate.
Fig. 1 show a kind of double cell display panels, liquid crystal light valve panel 10 and each autogamy of liquid crystal display panel 11 in figure
It sets there are two polaroid, the polaroid that liquid crystal light valve panel 10 configures has down polaroid 12 and upper polaroid 13, LCD display
The polaroid that plate 10 configures has down polaroid 14 and upper polaroid 15, and liquid crystal display panel is directly superimposed upon with liquid crystal light valve panel
A kind of double cell display panels are constituted together.
Fig. 2 show another double cell display panels, and double cell display panels include 10 He of liquid crystal light valve panel in figure
Liquid crystal display panel 11 is configured with a polaroid 12 in the outside of liquid crystal light valve panel 10, in the outer of liquid crystal display panel 11
Side is configured with a polaroid 15, and junction is configured with a polaroid between liquid crystal display panel and liquid crystal light valve panel
13 ', which controls the luminous flux for being incident on liquid crystal display panel.
Above-mentioned light valve panel passes through the rotation of liquid crystal and being polarized, subtracting control of the cooperation realization to luminous flux partially for polaroid
System.It is at high cost due to polaroid, simultaneously because the use of multilayer polaroid, leads to the preparation of existing double cell display panels
Higher cost, thickness is larger, the low problem of light transmission rate.
As shown in figure 3, to solve the above-mentioned problems, the embodiment of the present invention provides a kind of display panel, including liquid crystal light valve
Panel 10 and liquid crystal display panel 11 are configured with a polaroid 12 in the outside of liquid crystal light valve panel 10, in LCD display
The outside of plate 11 is configured with a polaroid 15, removes the polaroid between liquid crystal display panel 11 and liquid crystal light valve panel 10,
Then when preparing display panel, adulterate dichroic dye in the liquid crystal layer 30 of liquid crystal light valve panel, by using two to
The property of color dyestuff absorbs the light come from incidence from display panel backlight, adjusts the size of luminous flux according to this, and then realize
The performance of the black field of display panel.The usage quantity that polaroid in display panel can so be reduced reduces cost, reduces display
The thickness of panel, while also improving light transmission rate.
Raw material resources are saved simultaneously, reduces the related process for preparing display panel, improves production capacity.
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into
It is described in detail to one step, it is clear that the described embodiments are only some of the embodiments of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
All other embodiment, shall fall within the protection scope of the present invention.
A kind of dyestuff will be introduced in the embodiment of the present invention, with dichroic characteristic.Wherein dichroism refers to object
The absorption coefficient of confrontation light depends on the polarization state of incident light.Existing major part crystal produces in the case where natural light incidence
The intensity of raw o light and e light is equal, still, there are also crystal to two reflect light absorption differs greatly, this property
Dichroism is done, polarizing film can be made using the dichroism of crystal.In the embodiment of the present invention, doped with dichroic dye
Liquid crystal layer carry the effect of the original polaroid between liquid crystal display panel and liquid crystal light valve panel.Meanwhile two to
Color dye structure wide variety, including azo-type, anthraquinone type and other types, wherein azo-type dichroic dye due to
High order parameter can be provided, has many advantages, such as that solubility is preferable in liquid crystal, prepares simple, is currently preferred liquid crystal dye
Material.
As shown in figure 4, the embodiment of the present invention provides a kind of display panel, including liquid crystal display panel 11 and liquid crystal light valve face
Plate 10, the liquid crystal light valve panel 10 are located at the incident side of the liquid crystal display panel 11, wherein the liquid crystal light valve panel 10
It is equipped with the first polaroid 12 away from the side of the liquid crystal display panel 11, the liquid crystal display panel 11 deviates from the liquid crystal light
The side of valve face plate 10 is equipped with the second polaroid 15；The liquid crystal light valve panel 10 includes the liquid crystal doped with dichroic dye
Layer 30.
Above-mentioned display panel only includes two polaroids, eliminate liquid crystal display panel 11 and liquid crystal light valve panel 10 it
Between polaroid 13, and adulterate dichroic dye in the liquid crystal layer of liquid crystal light valve panel 10 30.To liquid crystal light valve panel
After 10 first substrate 41 provides power supply, electric field can be formed between first substrate 41 and the second substrate 42, under electric field action,
The deflection of certain angle can occur for the liquid crystal molecule 43 in liquid crystal layer 30 between first substrate 41 and the second substrate 42, be entrained in
The molecule 44 of dichroic dye in liquid crystal layer 30 can also deflect therewith, when there is incident light to pass through liquid crystal layer 30, liquid
The molecule 44 of dichroic dye in crystal layer 30 can absorb incident light, and the electric field level being applied on liquid crystal layer 30 is different
When, the angle that the molecule 44 of dichroic dye is deflected with liquid crystal molecule 43 is also different, and the molecule 44 of dichroic dye is right
The absorbing incident light ability for being parallel to molecular long axis is most strong, and most weak to the absorbing incident light ability perpendicular to molecular long axis, such as
The control to 10 luminous flux of liquid crystal light valve panel may be implemented in this, and then can reduce the number of polaroid in display panel, drop
Low cost, reduces the thickness of display panel, while also improving light transmission rate.
Optionally, the molecule 44 of the dichroic dye is most strong to the absorbing incident light ability for being parallel to molecular long axis,
And it is most weak to the absorbing incident light ability perpendicular to molecular long axis.
Doped with dichroic dye in above-mentioned display panel, the molecule 44 of the dichroic dye is to being parallel to molecule
The absorbing incident light ability of long axis is most strong, and most weak to the absorbing incident light ability perpendicular to molecular long axis.In this way, working as liquid crystal layer
After liquid crystal molecule 43 in 30 deflects under electric field action, the molecule 44 of dichroic dye can change therewith, change
Become the light quantity absorbed, to achieve the purpose that control luminous flux.
Optionally, the liquid crystal light valve panel 10 includes the first substrate 41 being oppositely arranged and the second substrate 42, described to mix
The miscellaneous liquid crystal layer 30 for having dichroic dye is between the first substrate 41 and the second substrate 42, the first substrate
41 and/or the second substrate 42 be equipped with for controlling in the liquid crystal layer 30 liquid crystal molecule at the interface for being parallel to incident light direction
The electrode structure of interior rotation；
When the liquid crystal molecule 43 in the liquid crystal layer 30 rotates under the electric field action that the electrode structure 40 is formed, institute
The molecule 44 of dichroic dye is stated with the rotation of the liquid crystal molecule 43 in the liquid crystal layer 30 doped with dichroic dye and
The transformation in direction occurs.
In above-mentioned display panel, it is located at the first substrate 41 and described doped with the liquid crystal layer 30 of dichroic dye
Between two substrates 42, the electrode structure 40 that first substrate 41 and/or the second substrate 42 are equipped with forms electric field, so that liquid crystal molecule
43 rotate in the interface for being parallel to incident light direction, in this way, can be incident on the direction of the incident light of liquid crystal display not
Become, while the control to luminous flux may be implemented, can so reduce the number of polaroid in display panel, reduce cost, subtract
The thickness of small display panel, while also improving light transmission rate.
Optionally, the electrode structure 40 forms tft array coordination electrode structure 40 in the liquid crystal light valve panel 10,
So that the liquid crystal light valve panel 10 forms multiple light valve pixel units of array distribution, the liquid crystal display panel 11 has battle array
The size of multiple display pixel cells of column distribution, the light valve pixel unit is identical as the size of the display pixel cells；
Alternatively, the size of the light valve pixel unit is greater than the size of the display pixel cells.
Liquid crystal light valve panel 10 forms tft array coordination electrode structure 40, while LCD display in above-mentioned display panel
Also there are similar tft array coordination electrode structure 40, the multiple light valve pixels being wherein distributed on liquid crystal light valve panel 10 on plate 11
The size of unit is identical as the size of display pixel cells on liquid crystal display panel 11, or greater than on liquid crystal display panel 11
The size of display pixel cells.So, it is ensured that liquid crystal light valve panel 10 after applying an electric field can be to being incident on liquid crystal
Show that the luminous flux of panel 11 realizes effective control.
Optionally, the electrode structure 40 includes public electrode and pixel electrode, and same layer is set in the first substrate 41
It sets；Or the pixel electrode is arranged in the first substrate 41, the public electrode is arranged in the second substrate 42.
The electrode structure 40 of above-mentioned liquid crystal light valve panel 10 includes public electrode and pixel electrode, wherein public electrode and picture
Plain electrode same layer can be arranged in first substrate 41, by public electrode and pixel electrode can in first substrate 41 same layer
When setting, the thickness of display panel can be further decreased, simultaneously because public electrode and pixel electrode can be in first substrates
Same layer is arranged in 41, then when preparing display panel, public electrode and pixel electrode can be purchased public electrode and picture simultaneously
Plain electrode can further simplify preparation flow in this way.
It is arranged in first substrate 41 when by pixel electrode, it is aobvious in preparation when public electrode is arranged in the second substrate 42
When showing panel, public electrode and pixel electrode are prepared respectively, and it is relatively low to prepare difficulty in this way.
Optionally, the display panel further includes being located at the liquid crystal light valve panel 10 away from the liquid crystal display panel 11
Side backlight 45.
In specific implementation, display panel further includes being located at the liquid crystal light valve panel 10 away from the liquid crystal display panel 11
Side backlight 45, in this way, can provide display light source used for display panel, wherein the backlight 45 is straight
Down light source or side entering type light source.
In the particular embodiment, the backlight 45 of display panel is directly-down light source or side entering type light source.Work as display surface
When the backlight 45 of plate is side entering type light source, it is also necessary to increase optical waveguide layer.
Above-mentioned dichroic dye can be dichroism azo dyes, and azo-type dichroic dye is due to that can provide
High order parameter has many advantages, such as that solubility is preferable in liquid crystal, prepares simple, is currently preferred liquid crystalline dyes.In addition,
Dichroic dye structure type is various, further includes anthraquinone type etc..
Optionally, the dichroic dye is dichroism azo dyes.
Above-mentioned dichroic dye can be dichroism azo dyes, and azo-type dichroic dye is due to that can provide
High order parameter has many advantages, such as that solubility is preferable in liquid crystal, prepares simple, is currently preferred liquid crystalline dyes.
Optionally, the dichroism azo dyes is azobenzene dichroic dye.
The above-mentioned chromotropism azo dyes being doped into liquid crystal light valve panel 10 can be azobenzene dichroic dye.Liquid
The liquid crystal layer 30 of brilliant light valve panel 10 was after adulterating azobenzene dichroic dye, if there is backlight 45, and worked as the liquid
When liquid crystal molecule 43 in crystal layer 30 rotates under electric field action, azobenzene dichroic dye is contaminated with doped with dichroism
The rotation of liquid crystal molecule 43 in the liquid crystal layer 30 of material and the transformation that direction occurs.
Due to dichroic dye exist it is most strong to the absorbing incident light ability for being parallel to molecular long axis, and to perpendicular to point
The most weak characteristic of the absorbing incident light ability of sub- long axis, when incident light is parallel to molecular long axis, azobenzene dichroic dye
Molecule 44 absorb incident light it is most, luminous flux is minimum at this time；When incident light is perpendicular to molecular long axis, azobenzene dichroic
Property dyestuff molecule 44 absorb incident light it is minimum, luminous flux is most at this time.Because of the molecule 44 of azobenzene dichroic dye
As the liquid crystal molecule 43 in the liquid crystal layer 30 of liquid crystal light valve panel 10 is in the interface intrinsic deflection for being parallel to incident light, polarisation is passed through
The direction for the incident light that piece is polarized will not change.
Optionally, the liquid crystal layer 30 includes nematic liquid crystal, dichroic dye and chipal compounds.
When carrying out dichroic dye doping, dichroic dye, nematic liquid crystal and chipal compounds are mixed simultaneously
It is dissolved in dichloromethane solvent, then using ultrasonic agitation until sample sufficiently dissolves mixing, then places in a vacuum drying oven
Dry preparation finally pours into mixture good sample in 30 cavity of liquid crystal layer of liquid crystal light valve panel 10.
Chipal compounds are the compounds being made of chiral molecules, and general chiral molecules refers to molecular weight, molecular structure
It is identical, but a pair of of molecule that left-right situs is opposite, body is reflected with its mirror as in kind.
Chipal compounds have optical activity, and the optical activity of chipal compounds refers to that the crystal by pure chiral material is matched
After certain density solution, with the chipal compounds solution of linearly polarized light illumination configuration, pass through the polarization of chipal compounds
This property of the rotation of certain angle can occur for light direction.
In addition, the different ratio of material can influence the ON state of liquid crystal light valve panel and the contrast of OFF state.Such as: in liquid
Dichroic dye is adulterated in crystalline substance, when the quality accounting of dichroic dye is 1%-3% in liquid crystal layer, liquid crystal light valve panel
The contrast of ON state and OFF state is 8-16.
In a kind of possible embodiment, the duration of ultrasonic agitation be can be 4 hours.
In a kind of possible embodiment, temperature in vacuum oven is 40 DEG C, when dry it is a length of for 24 hours.
Second aspect, the embodiment of the present invention provide a kind of display equipment, including above-mentioned display panel.
Above-mentioned display equipment includes above-mentioned display panel, and display panel provided in an embodiment of the present invention only includes two polarisations
Piece eliminates the polaroid between liquid crystal display panel 11 and liquid crystal light valve panel 10, and in the liquid crystal of liquid crystal light valve panel 10
Dichroic dye is adulterated in layer 30, it is strong to the absorbing incident light ability for being parallel to molecular long axis using dichroic dye, and
The characteristic weak to the absorbing incident light ability perpendicular to molecular long axis forms electricity by the electrode structure 40 of liquid crystal light valve panel 10
, so that liquid crystal molecule 43 rotates in the interface for being parallel to incident light direction, in this way, can be incident on liquid crystal display
The direction of incident light is constant, while the control to luminous flux may be implemented, and can so reduce the number of polaroid in display panel
Mesh reduces cost, reduces the thickness of display panel, while also improving light transmission rate.
Above by reference to showing according to the method, apparatus (system) of the embodiment of the present application and/or the frame of computer program product
Figure and/or flow chart describe the application.It should be understood that can realize that block diagram and or flow chart is shown by computer program instructions
The combination of the block of a block and block diagram and or flow chart diagram for figure.These computer program instructions can be supplied to logical
With computer, the processor of special purpose computer and/or other programmable data processing units, to generate machine, so that via meter
The instruction that calculation machine processor and/or other programmable data processing units execute creates for realizing block diagram and or flow chart block
In specified function action method.
Correspondingly, the application can also be implemented with hardware and/or software (including firmware, resident software, microcode etc.).More
Further, the application can take computer usable or the shape of the computer program product on computer readable storage medium
Formula has the computer realized in the medium usable or computer readable program code, to be made by instruction execution system
It is used with or in conjunction with instruction execution system.In the present context, computer can be used or computer-readable medium can be with
It is arbitrary medium, may include, stores, communicates, transmits or transmit program, is made by instruction execution system, device or equipment
With, or instruction execution system, device or equipment is combined to use.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of display panel, including liquid crystal display panel and liquid crystal light valve panel, which is characterized in that the liquid crystal light valve panel
Positioned at the incident side of the liquid crystal display panel, wherein the liquid crystal light valve panel deviates from the side of the liquid crystal display panel
Equipped with the first polaroid, the liquid crystal display panel is equipped with the second polaroid away from the side of the liquid crystal light valve panel；It is described
Liquid crystal light valve panel includes the liquid crystal layer doped with dichroic dye.
2. display panel as described in claim 1, which is characterized in that the molecule of the dichroic dye is to being parallel to molecule
The absorbing incident light ability of long axis is most strong, and most weak to the absorbing incident light ability perpendicular to molecular long axis.
3. display panel as described in claim 1, which is characterized in that the liquid crystal light valve panel includes first be oppositely arranged
Substrate and the second substrate, the liquid crystal layer doped with dichroic dye be located at the first substrate and the second substrate it
Between, the first substrate and/or the second substrate are equipped with and are being parallel to incident light side for controlling liquid crystal molecule in the liquid crystal layer
To interface in the electrode structure that rotates；
When the liquid crystal molecule in the liquid crystal layer rotates under the electric field action that the electrode structure is formed, the dichroism
The transformation in direction occurs with the rotation of the liquid crystal molecule in the liquid crystal layer doped with dichroic dye for the molecule of dyestuff.
4. display panel as claimed in claim 3, which is characterized in that electrode structure shape in the liquid crystal light valve panel
At tft array coordination electrode structure, so that the liquid crystal light valve panel forms multiple light valve pixel units of array distribution, it is described
Liquid crystal display panel has multiple display pixel cells of array distribution, the size of the light valve pixel unit and the display picture
The size of plain unit is identical；Alternatively,
The size of the light valve pixel unit is greater than the size of the display pixel cells.
5. display panel as claimed in claim 4, which is characterized in that the electrode structure includes public electrode and pixel electricity
Pole, same layer is arranged in the first substrate；Or the pixel electrode is arranged in the first substrate, the public electrode
It is arranged in the second substrate.
6. display panel as described in claim 1, which is characterized in that further include being located at the liquid crystal light valve panel away from described
The backlight of the side of liquid crystal display panel；
Wherein, the backlight is directly-down light source or side entering type light source.
7. display panel as described in claim 1, which is characterized in that the dichroic dye is dichroism azo dye
Material.
8. display panel as claimed in claim 7, which is characterized in that the dichroism azo dyes is azobenzene dichroic
Property dyestuff.
9. display panel as described in claim 1, which is characterized in that the liquid crystal layer includes nematic liquid crystal, dichroism
Dyestuff and chipal compounds.
10. a kind of display equipment, which is characterized in that including the display panel as described in claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810427974.6A CN110456581A (en) | 2018-05-07 | 2018-05-07 | A kind of display panel and display equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810427974.6A CN110456581A (en) | 2018-05-07 | 2018-05-07 | A kind of display panel and display equipment |
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| CN110456581A true CN110456581A (en) | 2019-11-15 |
Family
ID=68472087
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|---|---|---|---|
| CN201810427974.6A Pending CN110456581A (en) | 2018-05-07 | 2018-05-07 | A kind of display panel and display equipment |
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| CN112198727A (en) * | 2020-10-16 | 2021-01-08 | 武汉华星光电技术有限公司 | Display device |
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Address after: 266100, No. 218, Bay Road, Qingdao economic and Technological Development Zone, Shandong Applicant after: Hisense Video Technology Co.,Ltd. Address before: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Applicant before: QINGDAO HISENSE ELECTRONICS Co.,Ltd. |
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