CN105974683A - Liquid crystal display panel and making method thereof - Google Patents
Liquid crystal display panel and making method thereof Download PDFInfo
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- CN105974683A CN105974683A CN201610552966.5A CN201610552966A CN105974683A CN 105974683 A CN105974683 A CN 105974683A CN 201610552966 A CN201610552966 A CN 201610552966A CN 105974683 A CN105974683 A CN 105974683A
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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
- G02F1/133—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
- G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
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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
- G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
- G02F1/133715—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films by first depositing a monomer
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
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Abstract
The invention provides a liquid crystal display panel and a making method thereof. Graphene is adopted to replace indium tin oxide to make common electrodes and pixel electrodes, by means of the advantages of graphene that the transparency is high, the conductivity property is good, the flexibility is high and the production cost is low, the display performance of the liquid crystal display penal is improved, and the production cost of the liquid crystal display panel is reduced; a vertical alignment agent and polymeric monomers are utilized for conducting alignment on liquid crystal molecules, alignment film is omitted, and the liquid crystal alignment process is simplified; further, a graphene oxide layer is arranged on the surface of a graphene layer, the capacity that the vertical alignment agent anchors a substrate can be improved, and the liquid crystal alignment effect is improved.
Description
Technical field
The present invention relates to Display Technique field, particularly relate to a kind of display panels and preparation method thereof.
Background technology
Along with plane display dresses such as the development of Display Technique, liquid crystal displays (Liquid Crystal Display, LCD)
Put because having that high image quality, power saving, fuselage be thin and the advantage such as applied range, and be widely used in mobile phone, TV, individual number
The various consumption electronic products such as word assistant, digital camera, notebook computer, desk computer, become the master in display device
Stream.
Liquid crystal indicator major part on existing market is backlight liquid crystal display, it include display panels and
Backlight module (backlight module).The operation principle of display panels is to put in the middle of the glass substrate that two panels is parallel
Put liquid crystal molecule, have many tiny electric wires vertically and horizontally in the middle of two panels glass substrate, control liquid crystal by whether being energized
Molecular changes direction, reflects generation picture by the light of backlight module.
Generally display panels is by color film (CF, Color Filter) substrate, thin film transistor (TFT) (TFT, Thin Film
Transistor) substrate, the liquid crystal (LC, Liquid Crystal) being sandwiched between color membrane substrates and thin film transistor base plate and close
Sealing frame (Sealant) forms.
For common vertical orientation (Vertically Aligned, VA) display pattern, need CF substrate,
Arranging layer of transparent conducting film in TFT substrate, the Main Function of this nesa coating is between CF substrate and TFT substrate simultaneously
Form electric field, drive liquid crystal molecule deflection, thus realize bright showing slinkingly and show.The most traditional nesa coating uses by physics
Tin indium oxide (ITO) thin film that the method for gas phase sputtering (PVD) is prepared.In PVD device, heavy current bombardment ITO target,
On substrate, deposition obtains electrically conducting transparent ito thin film.But due to the physical characteristic of the oxide of ITO own, ito thin film can not be
Represent bending characteristic under certain External Force Acting, which also limits its application on flexible panel and wearable device.The opposing party
Face, along with the guiding of national policy, the cost of indium the most gradually rises height.Therefore high conductivity and high transmission rate, preparation method are found
Simple and resourceful ITO succedaneum has the strongest using value.
It addition, on CF substrate and TFT substrate, further respectively have thin film, its Main Function be make liquid crystal molecule by
Certain orientation arranges, we term it alignment film, the material of described alignment film mainly includes friction matching type PI (polyimides)
Material and light alignment-type PI material, but, any PI material all can have respective shortcoming, first friction matching easily to make
Become the problems such as dust granules, electrostatic residual and brush mark, thus reduce process yields, although and light alignment materials can avoid this
A little problems, but owing to material behavior is limited, thermostability and resistance to ag(e)ing are the best, and the ability of grappling liquid crystal molecule is the most weak simultaneously,
Thus affect the quality of panel；Secondly, PI material inherently has highly polar and high-hydroscopicity, during storing and transporting easily
Producing rotten thus cause orientation uneven, and PI material price is expensive, on TFT-LCD, the technique of film forming is the most complex,
Panel cost is caused to improve.
Summary of the invention
It is an object of the invention to provide a kind of display panels, cost of manufacture is low, and LCD alignment is effective, and has
Preferably display performance.
The present invention also aims to provide the manufacture method of a kind of display panels, save alignment film, simplify liquid crystal
Alignment manufacture process, and promote LCD alignment effect, prepared display panels has preferable display performance and production cost is low.
For achieving the above object, the present invention provides a kind of display panels, including the CF substrate being oppositely arranged and TFT base
Plate, the public electrode being respectively arranged on described CF substrate and TFT substrate opposite side and pixel electrode, it is respectively arranged on described common electrical
The first polymeric layer on pole and pixel electrode opposite side and the second polymer layer and be located at described first polymeric layer and the
Liquid crystal layer between dimerization nitride layer, described liquid crystal layer includes liquid crystal molecule；
Described public electrode and pixel electrode all include graphene layer；
Described first polymeric layer is polymerized with polymerisable monomer by vertical-tropism agent with the second polymer layer.
Described public electrode and pixel electrode also include the graphene oxide layer being located on described graphene layer.
Described vertical-tropism agent includes
And
In at least one；
Described polymerisable monomer includesWithIn
At least one.
The present invention provides the manufacture method of a kind of display panels, comprises the steps:
Step 1, offer CF substrate and TFT substrate, form public electrode and picture on described CF substrate with TFT substrate respectively
Element electrode, described public electrode and pixel electrode all include graphene layer；
Step 2, offer liquid crystal compound, described liquid crystal compound includes liquid crystal molecule, vertical-tropism agent and polymerizable list
Body；Described liquid crystal compound is instilled into described CF substrate and is provided with the one side of described public electrode or TFT substrate is provided with
In the one side of pixel electrode；
Step 3, offer fluid sealant, the peripheral painting of corresponding described liquid crystal compound in described TFT substrate or CF substrate
Cloth fluid sealant；
Described CF substrate is fit together with TFT substrate, fluid sealant is solidified；
Now, the liquid crystal compound between described CF substrate and TFT substrate forms liquid crystal layer, in described liquid crystal layer
A part of vertical-tropism agent is adsorbed in described CF substrate and TFT substrate surface, and is perpendicular to described CF substrate and TFT substrate row
Row, thus guide liquid crystal molecule to be perpendicular to described CF substrate and arrange with TFT substrate；
Step 4, described liquid crystal layer both sides apply voltage, liquid crystal molecule deflects, described liquid crystal layer both sides continue
While applying voltage, liquid crystal layer is carried out ultraviolet light for the first time and irradiates, the vertical-tropism agent in described liquid crystal layer and polymerizable
Monomer generation polyreaction, is deposited in described CF substrate and TFT substrate, is formed respectively at described CF substrate in TFT substrate
First polymeric layer and the second polymer layer；
Step 5, remove the voltage of described liquid crystal layer both sides after, at the work of described first polymeric layer Yu the second polymer layer
Under with, liquid crystal molecule produces tilt angle；
Described liquid crystal layer carries out second time ultraviolet light irradiate, make the vertical-tropism agent remained in described liquid crystal layer and can gather
Close monomer to react completely, obtain a display panels.
In described step 2, in described liquid crystal compound, the mass percent of described liquid crystal molecule is 94.5～99.5%,
The mass percent of described vertical-tropism agent is 0.1～5.0%, the mass percent of described polymerisable monomer be 0.3～
0.5%.
Described vertical-tropism agent includes
And
In at least one；
Described polymerisable monomer includesWithIn
At least one.
In described step 1, the method forming public electrode on described CF substrate includes:
Step 11, graphene powder and surfactant are dissolved in the water, obtain graphene suspension；
Step 12, described graphene suspension is coated on CF substrate, after described CF substrate is carried out Baking out,
To graphene layer, described graphene layer constitutes public electrode；
In described step 1, the method forming pixel electrode in described TFT substrate includes:
Step 101, graphene powder and surfactant are dissolved in the water, obtain graphene suspension；
Step 102, by described graphene suspension be coated with on the tft substrate, described TFT substrate is carried out Baking out
After, obtain graphene layer；
Step 103, described graphene layer is patterned process, obtains patterned pixel electrode.
8, the manufacture method of display panels as claimed in claim 4, it is characterised in that described public electrode and picture
Element electrode also includes the graphene oxide layer being located on described graphene layer；
In described step 1, the method forming public electrode on described CF substrate includes:
Step 11 ', graphene powder and surfactant are dissolved in the water, obtain graphene suspension；
Step 12 ', described graphene suspension is coated on CF substrate, described CF substrate (10) is carried out Baking out
After, obtain graphene layer；
Step 13 ', on described graphene layer, form graphene oxide layer, described graphene layer and graphene oxide layer are altogether
With constituting public electrode；
In described step 1, the method forming pixel electrode in described TFT substrate includes:
Step 101 ', graphene powder and surfactant are dissolved in the water, obtain graphene suspension；
Step 102 ', by described graphene suspension be coated with on the tft substrate, described TFT substrate is carried out Baking out
After, obtain graphene layer；
Step 103 ', on described graphene layer formed graphene oxide layer；
Step 104 ', described graphene layer and graphene oxide layer are patterned process simultaneously, obtain patterned
Pixel electrode.
Described step 13 ' and step 103 ' in, described graphene layer is formed the embodiment bag of graphene oxide layer
Include:
Use ozone that described graphene layer is carried out oxidation processes, obtain being positioned at the graphite oxide on described graphene layer surface
Alkene layer；
Or, graphene oxide powder is dissolved in water, obtains graphene oxide suspension, by described graphene oxide
Suspension, on described graphene layer, obtains graphene oxide layer.
In described step 4, the voltage applied in described liquid crystal layer both sides is 13～25V；Described first time ultraviolet light irradiates
Energy be 85～100mW/cm2, irradiation time is 80～150s；
In described step 5, the energy that described second time ultraviolet light irradiates is 85～100mW/cm2, irradiation time be 90～
120min。
Beneficial effects of the present invention: a kind of display panels that the present invention provides and preparation method thereof, uses Graphene
Replace tin indium oxide to make public electrode and pixel electrode, utilize that Graphene transparency is high, conduct electricity very well, pliability strong and raw
Produce the feature of low cost, improve the display performance of display panels and reduce the production cost of display panels；Utilize and hang down
Straight alignment agent and polymerisable monomer carry out orientation to liquid crystal molecule, save alignment film, simplify liquid crystal alignment process；Further,
By the surface configuration graphene oxide layer at graphene layer, the ability of vertical-tropism agent grappling substrate can be improved, thus promote
LCD alignment effect.
In order to be able to be further understood that inventive feature and technology contents, refer to below in connection with the present invention is detailed
Illustrate and accompanying drawing, but accompanying drawing only provides reference and explanation use, be not used for the present invention is any limitation as.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings, by the detailed description of the invention of the present invention is described in detail, technical scheme will be made
And other beneficial effect is apparent.
In accompanying drawing,
Fig. 1 is the structural representation of the display panels of the present invention；
Fig. 2 is the flow chart of the manufacture method of the display panels of the present invention；
Fig. 3 is the schematic diagram of step 1-3 of the manufacture method of the display panels of the present invention；
Fig. 4-5 is the schematic diagram of the step 4 of the manufacture method of the display panels of the present invention；
Fig. 6 is the schematic diagram of the step 5 of the manufacture method of the display panels of the present invention.
Detailed description of the invention
By further illustrating the technological means and effect, being preferable to carry out below in conjunction with the present invention that the present invention taked
Example and accompanying drawing thereof are described in detail.
Refer to Fig. 1, present invention firstly provides a kind of display panels, including the CF substrate 10 and TFT being oppositely arranged
Substrate 20, it is respectively arranged on described CF substrate 10 and the public electrode 11 on TFT substrate 20 opposite side and pixel electrode 21, sets respectively
In described public electrode 11 and the first polymeric layer 31 on pixel electrode 21 opposite side and the second polymer layer 32 and be located at
Liquid crystal layer 40 between described first polymeric layer 31 and the second polymer layer 32, described liquid crystal layer 40 includes liquid crystal molecule 41；
Described public electrode 11 all includes graphene layer 111 with pixel electrode 21；
Described first polymeric layer 31 and the second polymer layer 32 are by vertical-tropism agent 52 and polymerisable monomer (RM) 51
It is polymerized.
Preferably, described public electrode 11 and pixel electrode 21 also include the oxidation stone being located on described graphene layer 111
Ink alkene layer 112, owing to described graphene oxide layer 112 surface has-OH ,-COOH isopolarity group, can be in LCD alignment process
The middle raising vertical-tropism agent 52 absorbability to described CF substrate 10 with TFT substrate 20, thus promote display panels
Orientation effect.
Concrete, described vertical-tropism agent 52 contains the non-polar group of certain length for one end, and polar group is contained in one end
The compound of group.
Preferably, described vertical-tropism agent 52 includes
And
In at least one.
Concrete, a described polymerisable monomer 51 mainly class has the small molecule material of photoreaction characteristic.
Preferably, described polymerisable monomer 51 includesWithIn
At least one.
Concrete, the tilt angle of described liquid crystal molecule 41 is 0.5～2 °.
Concrete, described display panels also includes being located between described CF substrate 10 and TFT substrate 20 and being positioned at institute
State the fluid sealant 60 of liquid crystal molecule 41 periphery and be located between described CF substrate 10 and TFT substrate 20 and be positioned at described sealing
The conducting resinl 70 of glue 60 periphery.
Referring to Fig. 2, the present invention also provides for the manufacture method of a kind of display panels, comprises the steps:
Step 1, refer to Fig. 3, it is provided that CF substrate 10 and TFT substrate 20, on described CF substrate 10 with TFT substrate 20 point
Not Xing Cheng public electrode 11 and pixel electrode 21, described public electrode 11 all includes graphene layer 111 with pixel electrode 21.
In described step 1, the method forming public electrode 11 on described CF substrate 10 includes:
Step 11, graphene powder and surfactant are dissolved in the water, obtain graphene suspension.
Concrete, described step 11 also includes described graphene suspension is carried out supersound process.
Concrete, described surfactant includes sodium lauryl sulphate, ammonium lauryl sulfate, dodecyl sodium sulfonate
At least one in sodium, dodecylbenzene sodium sulfonate and sodium tetradecyl sulfate.
Step 12, described graphene suspension is coated on CF substrate 10, described CF substrate 10 is carried out Baking out
After, obtaining graphene layer 111, described graphene layer 111 constitutes public electrode 11.
Concrete, in described step 12, use the mode of rotary coating that described graphene suspension is coated on CF substrate
On 10.
Concrete, in described step 12, the temperature that described CF substrate 10 is carried out Baking out is 80-120 DEG C.
In described step 1, the method forming pixel electrode 21 in described TFT substrate 20 includes:
Step 101, graphene powder and surfactant are dissolved in the water, obtain graphene suspension.
Concrete, described step 101 also includes described graphene suspension is carried out supersound process.
Concrete, described surfactant includes sodium lauryl sulphate, ammonium lauryl sulfate, dodecyl sodium sulfonate
At least one in sodium, dodecylbenzene sodium sulfonate and sodium tetradecyl sulfate.
Step 102, described graphene suspension is coated in TFT substrate 20, described TFT substrate 20 is carried out baking and adds
After heat, obtain graphene layer 111.
Concrete, in described step 102, use the mode of rotary coating that described graphene suspension is coated on TFT base
On plate 20；The temperature that described TFT substrate 20 is carried out Baking out is 80-120 DEG C.
Step 103, described graphene layer 111 is patterned process, obtains patterned pixel electrode 21.
Concrete, in described step 103, use photoetching process or laser straight literary style that described graphene layer 111 is carried out figure
Shapeization processes.
Preferably, described public electrode 11 and pixel electrode 21 also include the oxidation stone being located on described graphene layer 111
Ink alkene layer 112.
Now, in described step 1, the method forming public electrode 11 on described CF substrate 10 includes:
Step 11 ', graphene powder and surfactant are dissolved in the water, obtain graphene suspension.
Concrete, described step 11 ' also include described graphene suspension is carried out supersound process.
Concrete, described surfactant includes sodium lauryl sulphate, ammonium lauryl sulfate, dodecyl sodium sulfonate
At least one in sodium, dodecylbenzene sodium sulfonate and sodium tetradecyl sulfate.
Step 12 ', described graphene suspension is coated on CF substrate 10, described CF substrate 10 is carried out Baking out
After, obtain graphene layer 111.
Concrete, in described step 12, use the mode of rotary coating that described graphene suspension is coated on CF substrate
On 10；The temperature that described CF substrate 10 is carried out Baking out is 80-120 DEG C.
Step 13 ', on described graphene layer 111, form graphene oxide layer 112, described graphene layer 111 and oxidation
Graphene layer 112 collectively forms public electrode 11.
Described step 13 ' in, the embodiment forming graphene oxide layer 112 on described graphene layer 111 includes:
Use ozone that described graphene layer 111 is carried out oxidation processes, obtain being positioned at the oxygen on described graphene layer 111 surface
Functionalized graphene layer 112；The time using ozone that described graphene layer 111 is carried out oxidation processes is 1～5min；
Or, graphene oxide powder is dissolved in water, obtains graphene oxide suspension, by described graphene oxide
Suspension, on described graphene layer 111, obtains graphene oxide layer 112；Course of dissolution carries out supersound process, coating
Mode be rotary coating.
In described step 1, the method forming pixel electrode 21 in described TFT substrate 20 includes:
Step 101 ', graphene powder and surfactant are dissolved in the water, obtain graphene suspension.
Concrete, described step 101 ' also include described graphene suspension is carried out supersound process.
Concrete, described surfactant includes sodium lauryl sulphate, ammonium lauryl sulfate, dodecyl sodium sulfonate
At least one in sodium, dodecylbenzene sodium sulfonate and sodium tetradecyl sulfate.
Step 102 ', described graphene suspension is coated in TFT substrate 20, described TFT substrate 20 is toasted
After heating, obtain graphene layer 111.
Concrete, described step 102 ' in, use the mode of rotary coating that described graphene suspension is coated on TFT base
On plate 20.
Concrete, described step 102 ' in, the temperature that described TFT substrate 20 is carried out Baking out is 80-120 DEG C.
Step 103 ', on described graphene layer 111 formed graphene oxide layer 112.
Described step 103 ' in, the embodiment forming graphene oxide layer 112 on described graphene layer 111 includes:
Use ozone that described graphene layer 111 is carried out oxidation processes, obtain being positioned at the oxygen on described graphene layer 111 surface
Functionalized graphene layer 112；The time using ozone that described graphene layer 111 is carried out oxidation processes is 1～5min；
Or, graphene oxide powder is dissolved in water, obtains graphene oxide suspension, by described graphene oxide
Suspension, on described graphene layer 111, obtains graphene oxide layer 112；Course of dissolution carries out supersound process, coating
Mode be rotary coating.
Step 104 ', described graphene layer 111 and graphene oxide layer 112 are patterned process simultaneously, obtain figure
The pixel electrode 21 of shape.
Concrete, described step 104 ' in, use photoetching process or laser straight literary style to described graphene layer 111 and oxidation
Graphene layer 112 is patterned process.
Step 2, referring to Fig. 3, it is provided that liquid crystal compound, described liquid crystal compound includes liquid crystal molecule 41, vertical orientated
Agent 52 and polymerisable monomer 51；Described liquid crystal compound is instilled into described CF substrate 10 and is provided with described public electrode 11
One side or TFT substrate 20 are provided with in the one side of pixel electrode 21.
Concrete, in described step 2, use liquid crystal drop process described liquid crystal compound is added drop-wise to TFT substrate 20 or
On CF substrate 10.
Concrete, in described step 2, in described liquid crystal compound, the mass percent of described liquid crystal molecule 41 is 94.5
～99.5%, the mass percent of described vertical-tropism agent 52 is 0.1～5.0%, the percent mass of described polymerisable monomer 51
Ratio is 0.3～0.5%.
Concrete, described vertical-tropism agent 52 contains the non-polar group of certain length for one end, polar group is contained in one end
The compound of group.
Preferably, described vertical-tropism agent 52 includes
And
In at least one.
Concrete, a described polymerisable monomer 51 mainly class has the small molecule material of photoreaction characteristic.
Preferably, described polymerisable monomer 51 includesWithIn at least one.
Preferably, described liquid crystal compound also include light trigger, the mass percent of described light trigger be 0.1～
0.5%.
Concrete, described light trigger includes azo-initiator, dialkyl class initiator, peroxidating two acyl class
At least one in initiator and peroxide lipid initiator.
Step 3, refer to Fig. 3, it is provided that fluid sealant 60, corresponding described liquid on described TFT substrate 20 or CF substrate 10
The peripheral applying paste 60 of brilliant mixture；
Described CF substrate 10 is fit together with TFT substrate 20, fluid sealant 60 is solidified；
Now, the liquid crystal compound between described CF substrate 10 and TFT substrate 20 forms liquid crystal layer 40, described liquid crystal
A part of vertical-tropism agent 52 in layer 40 is adsorbed in described CF substrate 10 and TFT substrate 20 surface, and is perpendicular to described CF base
Plate 10 arranges with TFT substrate 20, thus guides liquid crystal molecule 41 to be perpendicular to described CF substrate 10 and arrange with TFT substrate 20.
When described public electrode 11 all includes graphene layer 111 with pixel electrode 21 and is positioned at the oxygen on graphene layer 111
During functionalized graphene layer 112, owing to graphene oxide layer 112 surface has-OH ,-COOH isopolarity group, liquid crystal layer can be strengthened
Vertical-tropism agent 52 grappling CF substrate 10 in 40 and the ability of TFT substrate 20, improve the orientation effect of liquid crystal molecule 41.
Concrete, in described step 3, in vacuum environment, described TFT substrate 20 is fit together with CF substrate 10；Right
The mode that fluid sealant 50 carries out solidifying includes at least one in heat cure and UV solidification.
Concrete, described step 3 also includes: before described TFT substrate 20 is fitted with CF substrate 10, at described CF substrate
10 or TFT substrate 20 on the peripheral applying conductive glue 70 of corresponding fluid sealant 60.
Step 4, referring to Fig. 4-5, apply voltage in described liquid crystal layer 40 both sides, liquid crystal molecule 41 deflects, in institute
State while liquid crystal layer 40 both sides continue to voltage, liquid crystal layer 40 is carried out ultraviolet light for the first time and irradiates, described liquid crystal layer 40
In vertical-tropism agent 52 there is polyreaction with polymerisable monomer 51, be deposited on described CF substrate 10 with in TFT substrate 20,
The first polymeric layer 31 and the second polymer layer 32 is formed respectively in described CF substrate 10 and TFT substrate 20.
Concrete, in described step 4, the voltage applied in described liquid crystal layer 40 both sides is 13～25V；Described first time is purple
The energy that outer light irradiates is 85～100mW/cm2, irradiation time is 80～150s.
Step 5, refer to Fig. 6, after removing the voltage of described liquid crystal layer 40 both sides, at described first polymeric layer 31 and
Under the effect of dimerization nitride layer 32, liquid crystal molecule 41 produces tilt angle；
Described liquid crystal layer 40 carries out second time ultraviolet light irradiate, make the vertical-tropism agent 52 of residual in described liquid crystal layer 40
React completely with polymerisable monomer 51, obtain a display panels (as shown in Figure 1).
Concrete, in described step 5, the energy that described second time ultraviolet light irradiates is 85～100mW/cm2, irradiation time
It is 90～120min.
Concrete, in described step 5, the tilt angle that described liquid crystal molecule 41 produces is 0.5～2 °.
In sum, the present invention provides a kind of display panels and preparation method thereof, uses Graphene to replace Indium sesquioxide.
Stannum makes public electrode and pixel electrode, utilizes that Graphene transparency is high, conduct electricity very well, pliability is strong and production cost is low
Feature, improves the display performance of display panels and reduces the production cost of display panels；Utilize vertical-tropism agent and
Polymerisable monomer carries out orientation to liquid crystal molecule, saves alignment film, simplifies liquid crystal alignment process；Further, by graphite
The surface configuration graphene oxide layer of alkene layer, can improve the ability of vertical-tropism agent grappling substrate, thus promote LCD alignment effect
Really.
The above, for the person of ordinary skill of the art, can be according to technical scheme and technology
Other various corresponding changes and deformation are made in design, and all these change and deformation all should belong to the claims in the present invention
Protection domain.
Claims (10)
1. a display panels, it is characterised in that include CF substrate (10) and TFT substrate (20), the difference being oppositely arranged
It is located at described CF substrate (10) and the public electrode (11) on TFT substrate (20) opposite side and pixel electrode (21), is respectively arranged on
The first polymeric layer (31) on described public electrode (11) and pixel electrode (21) opposite side and the second polymer layer (32), with
And it is located at the liquid crystal layer (40) between described first polymeric layer (31) and the second polymer layer (32), described liquid crystal layer (40) wraps
Include liquid crystal molecule (41)；
Described public electrode (11) and pixel electrode (21) all include graphene layer (111)；
Described first polymeric layer (31) and the second polymer layer (32) are by vertical-tropism agent (52) and polymerisable monomer (51)
It is polymerized.
2. display panels as claimed in claim 1, it is characterised in that described public electrode (11) and pixel electrode (21)
Also include the graphene oxide layer (112) being located on described graphene layer (111).
3. display panels as claimed in claim 1, it is characterised in that described vertical-tropism agent (52) includes
AndIn at least one；
Described polymerisable monomer (51) includesWith
In at least one.
4. the manufacture method of a display panels, it is characterised in that comprise the steps:
Step 1, offer CF substrate (10) and TFT substrate (20), formed in TFT substrate (20) respectively described CF substrate (10)
Public electrode (11) and pixel electrode (21), described public electrode (11) and pixel electrode (21) all include graphene layer (111)；
Step 2, offer liquid crystal compound, described liquid crystal compound includes liquid crystal molecule (41), vertical-tropism agent (52) and can gather
Close monomer (51)；Described liquid crystal compound is instilled into described CF substrate (10) be provided with described public electrode (11) one side or
Person's TFT substrate (20) is provided with in the one side of pixel electrode (21)；
Step 3, offer fluid sealant (60), at the upper corresponding described liquid crystal compound of described TFT substrate (20) or CF substrate (10)
Peripheral applying paste (60)；
Described CF substrate (10) is fit together with TFT substrate (20), fluid sealant (60) is solidified；
Now, the liquid crystal compound being positioned between described CF substrate (10) and TFT substrate (20) forms liquid crystal layer (40), described liquid
A part of vertical-tropism agent (52) in crystal layer (40) is adsorbed in described CF substrate (10) and TFT substrate (20) surface, and vertically
Arrange in described CF substrate (10) and TFT substrate (20), thus guide liquid crystal molecule (41) be perpendicular to described CF substrate (10) with
TFT substrate (20) arranges；
Step 4, described liquid crystal layer (40) both sides apply voltage, liquid crystal molecule (41) deflects, in described liquid crystal layer (40)
While both sides continue to voltage, liquid crystal layer (40) is carried out ultraviolet light for the first time and irradiates, hanging down in described liquid crystal layer (40)
There is polyreaction with polymerisable monomer (51) in straight alignment agent (52), is deposited in described CF substrate (10) and TFT substrate (20),
Described CF substrate (10) with TFT substrate (20) are formed the first polymeric layer (31) and the second polymer layer (32) respectively；
Step 5, remove the voltage of described liquid crystal layer (40) both sides after, at described first polymeric layer (31) and the second polymer layer
(32), under effect, liquid crystal molecule (41) produces tilt angle；
Described liquid crystal layer (40) carries out second time ultraviolet light irradiate, make the vertical-tropism agent of residual in described liquid crystal layer (40)
(52) react completely with polymerisable monomer (51), obtain a display panels.
5. the manufacture method of display panels as claimed in claim 4, it is characterised in that in described step 2, described liquid crystal
In mixture, the mass percent of described liquid crystal molecule (41) is 94.5～99.5%, the quality of described vertical-tropism agent (52)
Percentage ratio is 0.1～5.0%, and the mass percent of described polymerisable monomer (51) is 0.3～0.5%.
6. the manufacture method of display panels as claimed in claim 4, it is characterised in that described vertical-tropism agent (52) wraps
Include
AndIn at least one；
Described polymerisable monomer (51) includesWith
In at least one.
7. the manufacture method of display panels as claimed in claim 4, it is characterised in that in described step 1, at described CF
The method forming public electrode (11) on substrate (10) includes:
Step 11, graphene powder and surfactant are dissolved in the water, obtain graphene suspension；
Step 12, described graphene suspension is coated on CF substrate (10), described CF substrate (10) is carried out Baking out
After, obtaining graphene layer (111), described graphene layer (111) constitutes public electrode (11)；
In described step 1, the method forming pixel electrode (21) in described TFT substrate (20) includes:
Step 101, graphene powder and surfactant are dissolved in the water, obtain graphene suspension；
Step 102, described graphene suspension is coated in TFT substrate (20), described TFT substrate (20) is carried out baking and adds
After heat, obtain graphene layer (111)；
Step 103, described graphene layer (111) is patterned process, obtains patterned pixel electrode (21).
8. the manufacture method of display panels as claimed in claim 4, it is characterised in that described public electrode (11) and picture
Element electrode (21) also includes the graphene oxide layer (112) being located on described graphene layer (111)；
In described step 1, the method forming public electrode (11) on described CF substrate (10) includes:
Step 11 ', graphene powder and surfactant are dissolved in the water, obtain graphene suspension；
Step 12 ', described graphene suspension is coated on CF substrate (10), described CF substrate (10) is carried out Baking out
After, obtain graphene layer (111)；
Step 13 ', form graphene oxide layer (112), described graphene layer (111) and oxygen described graphene layer (111) is upper
Functionalized graphene layer (112) collectively forms public electrode (11)；
In described step 1, the method forming pixel electrode (21) in described TFT substrate (20) includes:
Step 101 ', graphene powder and surfactant are dissolved in the water, obtain graphene suspension；
Step 102 ', described graphene suspension is coated in TFT substrate (20), described TFT substrate (20) is toasted
After heating, obtain graphene layer (111)；
Step 103 ', form graphene oxide layer (112) described graphene layer (111) is upper；
Step 104 ', described graphene layer (111) and graphene oxide layer (112) are patterned process simultaneously, obtain figure
The pixel electrode (21) of shape.
9. the manufacture method of display panels as claimed in claim 8, it is characterised in that described step 13 ' and step
In 103 ', include at the upper embodiment forming graphene oxide layer (112) of described graphene layer (111):
Use ozone that described graphene layer (111) is carried out oxidation processes, obtain being positioned at the oxygen on described graphene layer (111) surface
Functionalized graphene layer (112)；
Or, graphene oxide powder is dissolved in water, obtains graphene oxide suspension, described graphene oxide is suspended
Liquid is applied on described graphene layer (111), obtains graphene oxide layer (112).
10. the manufacture method of display panels as claimed in claim 4, it is characterised in that in described step 4, described
The voltage that liquid crystal layer (40) both sides apply is 13～25V；The energy that described first time ultraviolet light irradiates is 85～100mW/cm2,
Irradiation time is 80～150s；
In described step 5, the energy that described second time ultraviolet light irradiates is 85～100mW/cm2, irradiation time be 90～
120min。
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