CN109270744A - Liquid crystal display panel, liquid crystal display device and light alignment method - Google Patents
Liquid crystal display panel, liquid crystal display device and light alignment method Download PDFInfo
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- CN109270744A CN109270744A CN201811350855.1A CN201811350855A CN109270744A CN 109270744 A CN109270744 A CN 109270744A CN 201811350855 A CN201811350855 A CN 201811350855A CN 109270744 A CN109270744 A CN 109270744A
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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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
- G02F1/133788—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation by light irradiation, e.g. linearly polarised light photo-polymerisation
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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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133753—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
The present invention provides a kind of liquid crystal display panel, liquid crystal display device and light alignment method, which includes: the first substrate and the second substrate to box setting, and the layer of liquid crystal molecule being folded between first substrate and the second substrate；Base and the both alignment layers of light orientation are respectively formed on first substrate and the inner surface of the second substrate, multiple photosensitive materials are provided on the surface towards layer of liquid crystal molecule side of base and both alignment layers, photosensitive material is used in the case where having the orientation light irradiation of default incident angle, the multiple liquid crystal molecules of layer of liquid crystal molecule are driven to form the orientation of pre-tilt angle, the range of pre-tilt angle is between 80 ° to 88 °.The present invention is capable of forming the both alignment layers of lower pre-tilt angle, to improve the light transmission rate of liquid crystal display panel.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of liquid crystal display panels, liquid crystal display device and light orientation
Method.
Background technique
Liquid crystal display panel (Liquid Crystal Display, LCD) is used as flat-panel screens, has power consumption small,
Advantage small in size and that radiation is low.It is placed in liquid crystal between two panels conductive material, using the electric field driven of two electrodes, is drawn
The field effect of twisted liquid crystal molecules nematic is played, to control light source projects or masking, to achieve the purpose that show image.
In liquid crystal display panel, light orientation controls liquid crystal alignment using ultraviolet light, compared to friction matching
Process can reduce glass baseplate surface pollution or the scratch to alignment film.Currently used smooth alignment method includes UV2A
(Ultra Violet Vertical Alignment) and PSVA (Polymer Sustained Vertical
Alignment), wherein UV2A is the display panel exposure that will be covered with orientation film liquid, so that it is specific pre- to have alignment film
Inclination angle.And PSVA is then the ultraviolet light using linear polar biased on high molecular polymer alignment film, so that high molecular polymerization
Object has orientation ability.
However the pre-tilt angle that current alignment method is formed by alignment film is higher, the light that can not improve display panel penetrates
Rate.
Summary of the invention
In order to solve the problems, such as at least one mentioned in background technique, the present invention provides a kind of liquid crystal display panel, liquid crystal
Display device and light alignment method, are capable of forming the both alignment layers with lower pre-tilt angle, and the light for improving liquid crystal display panel penetrates
Rate.
To achieve the goals above, in a first aspect, the present invention provides a kind of liquid crystal display panel, comprising:
To the first substrate and the second substrate of box setting, and it is folded between the first substrate and the second substrate
Layer of liquid crystal molecule.
Base and the both alignment layers of light orientation are respectively formed on the first substrate and the inner surface of the second substrate, it is described
Multiple photosensitive materials, the photosensitive material are provided on the surface towards the layer of liquid crystal molecule side of base and the both alignment layers
Expect for driving multiple liquid crystal molecule shapes of the layer of liquid crystal molecule in the case where having the orientation light irradiation of default incident angle
At the orientation of pre-tilt angle, the range of the pre-tilt angle is between 80 ° to 88 °.
In above-mentioned liquid crystal display panel, optionally, the base and the both alignment layers include folded first set
Film layer and the second film layer.
First film layer of the base and the both alignment layers is respectively overlay in the first substrate and the second substrate
On inner surface, for connecting the base and the both alignment layers and second film layer.
The photosensitive material is arranged in second film layer.
In above-mentioned liquid crystal display panel, optionally, the photosensitive material includes carbon compound, silver halide, selenizing
Close one of object, silicon compound and cadmium sulfide or a variety of.
In above-mentioned liquid crystal display panel, optionally, the pre-tilt angle is less than or equal to 86.5 °.
In above-mentioned liquid crystal display panel, optionally, the range of the default incident angle of the orientation light be 0 ° extremely
90 °, the default incident angle of the orientation light is the incident direction of the orientation light and the normal direction of second film layer
Angle.
In above-mentioned liquid crystal display panel, optionally, the default incident angle of the orientation light is greater than or equal to
60°。
In above-mentioned liquid crystal display panel, optionally, the first substrate is array substrate, and the second substrate is
Color membrane substrates.
In above-mentioned liquid crystal display panel, optionally, also set respectively in the first substrate and the second substrate
It is equipped with the first polaroid and the second polaroid, the light transmission axis direction of first polaroid and second polaroid is mutually hung down
Directly.
Second aspect, a kind of liquid crystal display device of the present invention, including above-mentioned liquid crystal display panel.
The third aspect, the present invention provide a kind of smooth alignment method, comprising:
The first substrate that box is arranged and the second substrate are provided.
Layer of liquid crystal molecule is formed between the first substrate and the second substrate.
Base and the both alignment layers of light orientation are respectively formed on the first substrate and the inner surface of the second substrate.
Multiple photosensitive materials are set on the surface towards the layer of liquid crystal molecule side of the base and the both alignment layers
Material, the photosensitive material are used in the case where having the orientation light irradiation of default incident angle, drive the multiple of the layer of liquid crystal molecule
The liquid crystal molecule forms the orientation of pre-tilt angle, and the range of the pre-tilt angle is between 80 ° to 88 °.
Liquid crystal display panel, liquid crystal display device and light alignment method provided by the invention, by liquid crystal display panel
Base and both alignment layers towards layer of liquid crystal molecule side surface be arranged photosensitive material, utilize photosensitive material phototaxis improve base
Layer and both alignment layers imitate the induction sensitivity of ultraviolet light to improve deflection of the both alignment layers guidance liquid crystal molecule in process of alignment
Rate, and enable the deflection direction of liquid crystal molecule accurately towards the incident direction of ultraviolet light, improve the precision of orientation.And
And the ultraviolet light by increasing in light process of alignment presets incident angle, so that the pre-tilt angle of liquid crystal molecule be effectively reduced, increases
The light transmission rate of liquid crystal display panel improves display brightness and display effect.
Construction and its other goals of the invention and beneficial effect of the invention will be in conjunction with the accompanying drawings to preferred reality
Apply the description of example and more obvious and easy to understand.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to make simply to introduce, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram for the liquid crystal display panel that the embodiment of the present invention one provides；
Fig. 2 is the structural schematic diagram of the both alignment layers for the liquid crystal display panel that the embodiment of the present invention one provides；
Fig. 3 is the both alignment layers for the liquid crystal display panel that the embodiment of the present invention one provides and the structural representation of layer of liquid crystal molecule
Figure；
Fig. 4 be both alignment layers under a kind of orientation light irradiating state of liquid crystal display panel that the embodiment of the present invention one provides and
The structural schematic diagram of layer of liquid crystal molecule；
Fig. 5 is the both alignment layers under another orientation light irradiating state for the liquid crystal display panel that the embodiment of the present invention one provides
With the structural schematic diagram of layer of liquid crystal molecule；
Fig. 6 is the flow diagram for the light alignment method that the embodiment of the present invention three provides.
Description of symbols:
100-liquid crystal display panels；
10-first substrates；
20-the second substrates；
30-layer of liquid crystal molecule；
31-liquid crystal molecules；
40-bases；
50-both alignment layers；
60-the first film layer；
70-the second film layer；
71-photosensitive materials；
A-pre-tilt angle；
B-presets incident angle；
The normal direction of the second film layer of L1-；
L2-orientation light incident direction.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the preferred embodiment of the present invention
In attached drawing, technical solution in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from beginning to end or
Similar label indicates same or similar component or component with the same or similar functions.Described embodiment is this hair
Bright a part of the embodiment, instead of all the embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to
It is used to explain the present invention, and is not considered as limiting the invention.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
The embodiment of the present invention is described in detail with reference to the accompanying drawing.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should broadly understood, for example, can make to be fixedly connected, be also possible to indirectly connected through an intermediary, can be with
It is the interaction relationship of the connection or two elements inside two elements.For the ordinary skill in the art,
The specific meanings of the above terms in the present invention can be understood according to specific conditions.
Embodiment one
Fig. 1 is the structural schematic diagram for the liquid crystal display panel that the embodiment of the present invention one provides.Fig. 2 is the embodiment of the present invention one
The structural schematic diagram of the both alignment layers of the liquid crystal display panel of offer.Fig. 3 is the liquid crystal display panel that the embodiment of the present invention one provides
Both alignment layers and layer of liquid crystal molecule structural schematic diagram.Fig. 4 is the one kind for the liquid crystal display panel that the embodiment of the present invention one provides
The structural schematic diagram of both alignment layers and layer of liquid crystal molecule under orientation light irradiating state.Fig. 5 is the liquid that the embodiment of the present invention one provides
The structural schematic diagram of both alignment layers and layer of liquid crystal molecule under another orientation light irradiating state of LCD panel.
The present inventor has found during practical study, current liquid crystal display panel in the preparation, light orientation
During using ultraviolet light irradiation control liquid crystal alignment so that liquid crystal molecule forms specific pre-tilt angle, however at present
The formed liquid crystal pretilt angle of alignment method it is higher, cause view field of the liquid crystal molecule on light direction smaller, therefore nothing
Method changes the polarization direction of more light, so that not can guarantee more light can adapt to the inclined of liquid crystal display panel light emission side
The polarization direction of mating plate reduces the light transmission rate of liquid crystal display panel, causes its display effect poor.
And, the embodiment of the present invention provides following solution based on above-mentioned discovery:
Referring to figs. 1 to shown in Fig. 5, the embodiment of the present invention provides a kind of liquid crystal display panel 100, comprising:
To the first substrate 10 and the second substrate 20 of box setting, and it is folded between first substrate 10 and the second substrate 20
Layer of liquid crystal molecule 30.
Base 40 and the both alignment layers 50 of light orientation, base are respectively formed on first substrate 10 and the inner surface of the second substrate 20
40 and both alignment layers 50 the surface towards 30 side of layer of liquid crystal molecule on be provided with multiple photosensitive materials 71, photosensitive material 71 is used for
In the case where having the orientation light irradiation of default incident angle b, the multiple liquid crystal molecules 31 of layer of liquid crystal molecule 30 is driven to form pre-tilt angle a
Orientation, the range of pre-tilt angle a is between 80 ° to 88 °.
As a kind of achievable embodiment, first substrate 10 can be color membrane substrates, and the second substrate 20 can be battle array
Column substrate.
As a kind of achievable embodiment, the first polarisation is also respectively provided in first substrate 10 and the second substrate 20
The light transmission axis direction of piece and the second polaroid, the first polaroid and the second polaroid is mutually perpendicular to.
Specifically, base 40 and both alignment layers 50 include folded the first film layer 60 and the second film layer 70 set.Base 40 and match
It is respectively overlay on first substrate 10 and the inner surface of the second substrate 20 to the first film layer 60 of layer 50, for connecting 40 He of base
Both alignment layers 50 and the second film layer 70.Photosensitive material 71 is arranged in the second film layer 70.
It should be pointed out that the first film layer 60 can be base, the second film layer 70 can be light reaction layer, base it is main
Effect is to connect light reaction layer with first substrate 10 or the second substrate 20, and photosensitive material 71 is provided in light reaction layer, sense
Luminescent material 71 can be the array arrangement in the second film layer 70.In a certain range, photosensitive material 71 on unit area
Quantity is more, and both alignment layers are then higher to the induction sensitivity of ultraviolet light, and the present embodiment is to photosensitive material 71 on unit area
Quantity and be not limited, can be set as needed.
It should be noted that referring to shown in attached drawing 1, first substrate 10 in liquid crystal display panel 100 provided in this embodiment
Can be array substrate, the second substrate 20 can be color membrane substrates, wherein color membrane substrates may include transparent substrate, color film layer with
And public electrode, film layer of prizing include being alternatively arranged black matrix and the pixel array between black matrix, pixel array packet
Include multiple pixel units.
Array substrate may include tft layer and pixel electrode.Wherein first substrate 10 and the second substrate 20 are to box
The surface of setting, i.e. the two is oppositely arranged, to guarantee to form certain accommodating space therebetween.It can be into one in the space
Step setting layer of liquid crystal molecule 30, layer of liquid crystal molecule 30 includes multiple liquid crystal molecules 31 aligned, and liquid crystal molecule 31 is in electric field
Or it deflects under the irradiation of ultraviolet light.
It can also divide on first substrate 10 and the inner surface (i.e. close to the surface of accommodating space side) of the second substrate 20
Not She Zhi base 40 and both alignment layers 50, both alignment layers can guide deflecting for liquid crystal molecule 31.In first substrate 10 and second
The first polaroid and the second polaroid (figure are respectively arranged on the outer surface (surface i.e. far from accommodating space side) of substrate 20
In be not shown).
When liquid crystal display panel 100 works, backlight module shines, and the light of backlight module can first pass around first partially
Mating plate, to form the polarised light with the first polarization direction, the first polarization direction of the polarised light is saturating with the first polaroid
Optical axis direction is identical.Polarised light successively passes through tft layer, pixel electrode and base 40 and enters layer of liquid crystal molecule 30.
It wherein deflects under electric field action of the layer of liquid crystal molecule 30 between public electrode and pixel electrode, light passes through
Light constantly reflects when layer of liquid crystal molecule 30, and leading to its first change of polarized direction is the light transmission axis direction phase with the second polaroid
The second same polarization direction, therefore polarised light can be exhaled successively through the pixel array of color membrane substrates and the second polaroid
It goes, to form colored light.
Wherein, it in the preparation process of liquid crystal display panel 100, needs to carry out light orientation to layer of liquid crystal molecule 30, thus
Form it into certain pre-tilt angle a.It is attached Fig. 2 shows be light match forward both alignment layers structural schematic diagram.In light with forward
In the state of, the deflection of multiple photosensitive materials 71 direction in the second film layer 70 of both alignment layers is indefinite, leads to the court of photosensitive material 71
To different.
The multiple photosensitive materials 71 being arranged in both alignment layers provided in this embodiment are become based on photosensitive material 71 with certain
Photosensitiveness, photosensitive material 71 can the ultraviolet light according to used in light orientation incident direction L2 movement and synchronizing moving occurs,
To change the pre-tilt angle a of both alignment layers.Therefore increasing photosensitive material 71 in both alignment layers can be improved both alignment layers to ultraviolet light
Sensitivity is responded, to improve light orientation efficiency.It is to pass through molecule based on liquid crystal molecule 31 in layer of liquid crystal molecule 30 and both alignment layers
Between active force connect, both alignment layers formed pre-tilt angle a process of alignment in liquid crystal molecule 31 can be guided to deflect, to be formed
Corresponding pre-tilt angle a.
Referring to shown in attached drawing 3, the deflection direction before light orientation due to photosensitive material 71 is indefinite, leads to liquid crystal point
The deflection direction of son 31 is indefinite.With continued reference to shown in Figure 4 and 5, when carrying out light orientation, light orientation equipment issues ultraviolet light, more
The unified incident direction L2 towards ultraviolet light of a photosensitive material 71 is deflected and is solidified under the action of uv light, to form system
One fixed pre-tilt angle a.It is understood that liquid crystal molecule 31 can equally be formed unified solid under the drive of photosensitive material 71
Fixed pre-tilt angle a.
Referring to shown in Fig. 4, when the pre-tilt angle a that the photosensitive material 71 of both alignment layers drives liquid crystal molecule 31 to deflect is larger (at present
Pre-tilt angle a be 88 ° to 90 °), view field of the liquid crystal molecule 31 in the direction of the launch of light is smaller, causes to pass through liquid crystal
The light of molecule 31 is less, therefore be bound to by the light that liquid crystal molecule 31 reflects less, final polarization direction and the second polarisation
The identical light of light transmission axis direction of piece is less, so that the brightness of liquid crystal display panel 100 is lower, display effect is poor.
In order to solve the technical problem, referring to Figure 5, the pre-tilt angle a of liquid crystal molecule 31 provided in this embodiment is lower,
It can be between 80 ° to 88 °.After the pre-tilt angle a of liquid crystal molecule 31 is reduced, the view field in the light direction of the launch increases,
Want to increase by the light of liquid crystal molecule 31, thus by liquid crystal molecule 31 reflect light certainly will increase, final polarization direction with
The identical light of light transmission axis direction of second polaroid increases, so as to effectively improve the brightness of liquid crystal display panel 100 with
And display effect.
As a kind of achievable embodiment, photosensitive material 71 may include carbon compound, silver halide, selenium compound,
One of silicon compound and cadmium sulfide are a variety of.In actual use, the specific type of photosensitive material 71 can be according to need
It selects, the present embodiment is to this and is not limited, and is also not limited to above-mentioned example.
As a kind of optimal embodiment, pre-tilt angle a is less than or equal to 86.5 °.It should be pointed out that based on above-mentioned
Description process is it is found that the pre-tilt angle a of liquid crystal molecule 31 reduces the light transmission rate and the display that help to improve liquid crystal display panel 100
Brightness.Therefore the present embodiment can also further limit, pre-tilt angle a is less than or waits in the range of 80 ° to 88 ° of pre-tilt angle a
In 86.5 °.
Actual in use, photosensitive material in the adjustment process and the type of photosensitive material 71 of pre-tilt angle a, unit area
The quantity of material 71 and the irradiation process of ultraviolet light are related, can adjust pre-tilt angle a's by adjusting above-mentioned parameter to reach
Purpose.
Further, the range of the default incident angle b of orientation light is 0 ° to 90 °, and the default incident angle b of orientation light is
The angle of the incident direction L2 of orientation light and the normal direction L1 of the second film layer 70.Preferably, the default incident angle b of orientation light
More than or equal to 60 °.
It should be noted that referring to shown in Fig. 4 and Fig. 5, the pre-dumping of default the incident angle b and liquid crystal molecule 31 of orientation light
Angle a is that mutually remaining relationship, i.e. the sum of the default incident angle b of orientation light and the pre-tilt angle a of liquid crystal molecule 31 are 90 degree.Therefore orientation
The default incident angle b of light is bigger, then the light transmission rate of liquid crystal display panel 100, display brightness and display effect.Specific point
Analysis process is identical as above-mentioned pre-tilt angle a analytic process, and details are not described herein again.
The liquid crystal display panel that the embodiment of the present invention one provides, by base and both alignment layers towards layer of liquid crystal molecule side
Surface photosensitive material is set, improve base and both alignment layers to the induction sensitivity of ultraviolet light using the phototaxis of photosensitive material,
To improve deflection efficiency of the both alignment layers guidance liquid crystal molecule in process of alignment, and enable the deflection direction of liquid crystal molecule
Enough accurately towards the incident direction of ultraviolet light, the precision of orientation is improved.And by increasing the ultraviolet light in light process of alignment
Default incident angle increases the light transmission rate of liquid crystal display panel so that the pre-tilt angle of liquid crystal molecule be effectively reduced, and improves display
Brightness and display effect.
Embodiment two
On the basis of the above embodiment 1, the embodiment of the present invention two also provides a kind of liquid crystal display device.
Specifically, the liquid crystal display device may include liquid crystal display panel 100 in embodiment one, backlight module and
Driving and control circuit, are referred to shown in Fig. 1-Fig. 5, wherein backlight module (not shown) may include shell, background
Headlamp, reflecting plate, light guide plate and light diffusing sheet etc. are layering, and can dismantle and replace.When in use, it drives and controls
Background illumination lamp in circuit control backlight module processed shines, using reflecting plate, light guide plate and light diffusing sheet by light guide to
In liquid crystal display panel 100, successively by the first polaroid of liquid crystal display panel 100, tft layer, pixel electrode,
Base 40, layer of liquid crystal molecule 30, both alignment layers 50, public electrode, color film layer and the second polaroid, forms colourama and exhales liquid
Crystal device.
Other technical characteristics are the same as example 1, and can reach identical technical effect, and this is no longer going to repeat them.
Liquid crystal display device provided by Embodiment 2 of the present invention includes liquid crystal display panel, by base and orientation
Photosensitive material is arranged in the surface of layer towards layer of liquid crystal molecule side, improves base and both alignment layers pair using the phototaxis of photosensitive material
The induction sensitivity of ultraviolet light to improve deflection efficiency of the both alignment layers guidance liquid crystal molecule in process of alignment, and makes
The deflection direction of liquid crystal molecule can improve the precision of orientation accurately towards the incident direction of ultraviolet light.And pass through increase
Ultraviolet light in light process of alignment presets incident angle, so that the pre-tilt angle of liquid crystal molecule be effectively reduced, increases LCD display
The light transmission rate of plate improves display brightness and display effect.
Embodiment three
Fig. 6 is the flow diagram for the light alignment method that the embodiment of the present invention three provides.Referring to shown in Fig. 6, in above-mentioned reality
On the basis of applying example one, the embodiment of the present invention three also provides a kind of smooth alignment method, and this method includes step specific as follows:
S1: the first substrate that box is arranged and the second substrate are provided.First substrate and the second substrate are carried out to box processing,
Form liquid crystal cell.
Wherein first substrate can be array substrate, and array substrate may include tft layer and pixel electrode.The
It may include transparent substrate, color film layer and public electrode, film layer of prizing packet that two substrates, which can be color membrane substrates color membrane substrates,
It includes and is alternatively arranged black matrix and the pixel array between black matrix, pixel array includes multiple pixel units.
S2: layer of liquid crystal molecule is formed between first substrate and the second substrate.
Layer of liquid crystal molecule is formed between first substrate and the second substrate, includes multiple liquid crystal molecules in layer of liquid crystal molecule.
S3: base and the both alignment layers of light orientation are respectively formed on first substrate and the inner surface of the second substrate.
Wherein, first substrate and the inner surface of the second substrate refer to its surface towards layer of liquid crystal molecule side, Ke Yitong
It crosses the mode being coated or deposited with and is respectively formed base and both alignment layers.
S4: multiple photosensitive materials, photosensitive material are set on the surface towards layer of liquid crystal molecule side of base and both alignment layers
Expect for driving the multiple liquid crystal molecules of layer of liquid crystal molecule to form pre-tilt angle in the case where having the orientation light irradiation of default incident angle
Orientation, the range of pre-tilt angle is between 80 ° to 88 °.
Wherein, photosensitive material can refer to the particle with phototaxis, and base and orientation can be improved using photosensitive material
Induction sensitivity of the layer to the ultraviolet light of process of alignment.And by the incident angle for increasing ultraviolet light, to reduce liquid crystal point
The pre-tilt angle of son.
Other technical characteristics are the same as example 1, and can reach identical technical effect, and this is no longer going to repeat them.
The light alignment method that the embodiment of the present invention three provides, by base and both alignment layers towards layer of liquid crystal molecule side
Photosensitive material is arranged in surface, improves base and both alignment layers to the induction sensitivity of ultraviolet light using the phototaxis of photosensitive material, from
And deflection efficiency of the both alignment layers guidance liquid crystal molecule in process of alignment is improved, and enable the deflection direction of liquid crystal molecule
Accurately towards the incident direction of ultraviolet light, the precision of orientation is improved.And it is pre- by increasing the ultraviolet light in light process of alignment
If incident angle, so that the pre-tilt angle of liquid crystal molecule be effectively reduced, increases the light transmission rate of liquid crystal display panel, it is bright to improve display
Degree and display effect.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "vertical", "horizontal",
The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" are to be based on the orientation or positional relationship shown in the drawings, only
It is for the convenience of describing the present invention and simplifying the description, rather than to indicate or imply that signified device or element must have spy
Fixed orientation is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In description of the invention
In, the meaning of " plurality " is two or more, accurately specifically provide unless otherwise.
The description and claims of this application and term " first ", " second ", " third ", " in above-mentioned attached drawing
The (if present)s such as four " are to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should manage
The data that solution uses in this way are interchangeable under appropriate circumstances, so that embodiments herein described herein for example can be to remove
Sequence other than those of illustrating or describe herein is implemented.In addition, term " includes " and " having " and theirs is any
Deformation, it is intended that cover it is non-exclusive include, for example, containing the process, method of a series of steps or units, system, production
Product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include be not clearly listed or for this
A little process, methods, the other step or units of product or equipment inherently.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
Technical solution documented by foregoing embodiments can so be studied and be changed, or some or all of the technical features are carried out
Equivalent replacement；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution various embodiments of the present invention technical side
The range of case.
Claims (10)
1. a kind of liquid crystal display panel characterized by comprising
To the first substrate and the second substrate of box setting, and the liquid being folded between the first substrate and the second substrate
Brilliant molecular layer；
Base and the both alignment layers of light orientation, the base are respectively formed on the first substrate and the inner surface of the second substrate
Be provided with multiple photosensitive materials on the surface towards the layer of liquid crystal molecule side of the both alignment layers, the photosensitive material is used
In in the case where having the orientation light irradiation of default incident angle, multiple liquid crystal molecules of the layer of liquid crystal molecule are driven to be formed pre-
The orientation at inclination angle, the range of the pre-tilt angle is between 80 ° to 88 °.
2. liquid crystal display panel according to claim 1, which is characterized in that the base and the both alignment layers include folding
If the first film layer and the second film layer；
First film layer of the base and the both alignment layers is respectively overlay in the first substrate and the second substrate
On inner surface, for connecting the base and the both alignment layers and second film layer；
The photosensitive material is arranged in second film layer.
3. liquid crystal display panel according to claim 2, which is characterized in that the photosensitive material includes carbon compound, halogen
Change one of silver, selenium compound, silicon compound and cadmium sulfide or a variety of.
4. liquid crystal display panel according to claim 2, which is characterized in that the pre-tilt angle is less than or equal to 86.5 °.
5. liquid crystal display panel according to claim 4, which is characterized in that the model of the default incident angle of the orientation light
Enclosing is 0 ° to 90 °, and the default incident angle of the orientation light is the incident direction of the orientation light and the method for second film layer
The angle in line direction.
6. liquid crystal display panel according to claim 2, which is characterized in that the default incident angle of the orientation light is less than
Or it is equal to 60 °.
7. liquid crystal display panel according to claim 2, which is characterized in that the first substrate is array substrate, described
The second substrate is color membrane substrates.
8. liquid crystal display panel according to claim 2, which is characterized in that on the first substrate and the second substrate
It is also respectively provided with the first polaroid and the second polaroid, the light transmission axis direction of first polaroid and second polaroid
It is mutually perpendicular to.
9. a kind of liquid crystal display device, which is characterized in that including the described in any item liquid crystal display panels of claim 1-8.
10. a kind of smooth alignment method characterized by comprising
The first substrate that box is arranged and the second substrate are provided；
Layer of liquid crystal molecule is formed between the first substrate and the second substrate；
Base and the both alignment layers of light orientation are respectively formed on the first substrate and the inner surface of the second substrate；
Photosensitive material is set in the both alignment layers, and the photosensitive material is used in the orientation light irradiation with default incident angle
Under, drive multiple liquid crystal molecules of the layer of liquid crystal molecule to form the orientation of pre-tilt angle, the range of the pre-tilt angle is at 80 °
To between 88 °.
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| CN201811350855.1A CN109270744A (en) | 2018-11-14 | 2018-11-14 | Liquid crystal display panel, liquid crystal display device and light alignment method |
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| CN201811350855.1A CN109270744A (en) | 2018-11-14 | 2018-11-14 | Liquid crystal display panel, liquid crystal display device and light alignment method |
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| CN110993824A (en) * | 2019-12-19 | 2020-04-10 | 京东方科技集团股份有限公司 | OLED display screen, preparation method thereof and display device |
| CN113777837A (en) * | 2021-09-29 | 2021-12-10 | 业成科技（成都）有限公司 | Liquid crystal display panel, preparation method thereof and display screen |
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Application publication date: 20190125 |