CN110068962A - Display base plate and its friction orientation method, preparation method - Google Patents
Display base plate and its friction orientation method, preparation method Download PDFInfo
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- CN110068962A CN110068962A CN201910521827.XA CN201910521827A CN110068962A CN 110068962 A CN110068962 A CN 110068962A CN 201910521827 A CN201910521827 A CN 201910521827A CN 110068962 A CN110068962 A CN 110068962A
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- base plate
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- layer
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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
- G02F1/133784—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 rubbing
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- 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 embodiment of the present invention provides a kind of display base plate and its friction orientation method, preparation method, and the friction orientation method of the display base plate includes: to form flatness layer on the non-flat forms layer, so that the surface of the non-flat forms layer forms plane;Orientation film layer is formed on the surface of the display base plate;Friction orientation is carried out using surface of the friction member to above-mentioned orientation film layer;Rinse above-mentioned display base plate;The present invention can be effectively reduced display base plate and the undesirable incidence of alignment-type occurs.
Description
Technical field
The present invention relates to field of display technology, and in particular to a kind of display base plate and its friction orientation method, preparation method.
Background technique
Orientation for alignment films (Polyimide, abbreviation PI) is liquid crystal display (Liquid Crystal
Display, abbreviation LCD) important process in industry, LCD industry mostly uses friction (Rubbing) technique to orientation at present
Film is orientated.In friction process friction orientation is carried out to display base plate using friction member respectively, then carried out to box technique.
During friction orientation, friction member directly directly contacts friction with display base plate, during which can generate a large amount of impurity particle, this
A little impurity particles include the molecule that friction member abrasion alignment layer surface generates and the clast that friction member loss generates
Grain.Therefore it needs to clean display base plate before by display base plate to box.Fig. 1 is after existing TFT substrate is cleaned
Structural schematic diagram, the TFT substrate of the prior art during the preparation process, after being cleaned to array substrate 1, in array substrate 1 still
So there is a large amount of impurity particle 2, and these impurity particles 2 can be accumulated in the display area of array substrate 1, lead to manufactured battle array
Column substrate 1 easily occurs in the bad problem of alignment-type of display area edge aggregation, as shown in Figure 1.
Summary of the invention
The embodiment of the present invention is the technical problem to be solved is that, provide a kind of display base plate and its friction orientation method, system
Preparation Method can be effectively reduced display base plate and the undesirable incidence of alignment-type occurs.
In order to solve the above-mentioned technical problem, described the embodiment of the invention provides a kind of display base plate friction orientation method
Display base plate includes display area and non-display area, and the surface of the non-display area forms non-flat forms layer, the display base
Plate friction orientation method includes:
Flatness layer is formed on the non-flat forms layer, so that the surface of the non-flat forms layer forms plane;
Orientation film layer is formed on the surface of the display base plate;
Friction orientation is carried out using surface of the friction member to above-mentioned orientation film layer;
Rinse above-mentioned display base plate.
Optionally, it is described friction orientation is carried out to the surface of above-mentioned orientation film layer using friction member after, further includes:
The friction member is combed, generates impurity particle during friction orientation to avoid the friction member.
Optionally, the display base plate further includes white space, it is described using friction member to the surface of above-mentioned orientation film layer
After carrying out friction orientation, the display base plate friction orientation method further include:
The friction member is combed in the top of the white space.
Optionally, the display base plate includes multiple display areas and multiple non-display areas, and the white space is located at
Between the adjacent non-display area and periphery of the display base plate.
Optionally, the friction member is combed, comprising:
The friction member is subjected to 5~10 frictions to glass substrate.
Optionally, flatness layer is formed on the non-flat forms layer, comprising:
Rubberised layer is formed on the non-flat forms layer;
Reaction is exposed to the rubberised layer at the non-flat forms of the non-flat forms layer;
Develop to the rubberised layer, removes at the non-flat forms with outer rubberised layer;
Rubberised layer at the non-flat forms is solidified, the flatness layer is formed.
Optionally, the material of the flatness layer uses light-sensitive material.
Optionally, the above-mentioned display base plate of flushing includes:
The moisture film of stable and uniform is formed on display base plate surface, by the moisture film to display base plate surface in friction orientation mistake
The impurity particle generated in journey is rinsed.
Optionally, the direction using friction member to the surface progress friction orientation of above-mentioned orientation film layer and the flushing
The flushing direction of display base plate is identical.
In order to solve the above-mentioned technical problem, the embodiment of the invention also provides a kind of preparation methods of display base plate, including
Display base plate friction orientation method above-mentioned.
In order to solve the above-mentioned technical problem, the embodiment of the invention also provides a kind of display base plates, by display base above-mentioned
The preparation method of plate is prepared.
The present invention provides a kind of display base plate and its friction orientation methods, preparation method, by the non-of display base plate
Flatness layer is formed on flatness layer, on the one hand reduces non-flat forms layer during friction orientation and friction member is caused to damage, reduce
The impurity particle that friction member generates;It on the other hand, can be in non-flat forms during rinsing the impurity particle on display base plate surface
Layer surface forms the moisture film of stable and uniform, promotes flushing effect, the impurity particle on non-flat forms layer is avoided to purge to viewing area
The surface in domain is effectively reduced display base plate and the undesirable incidence of alignment-type occurs.
The invention shows the friction orientation methods of substrate, after being rubbed using friction member to orientation film surface,
Friction member is combed, generates impurity particle during friction orientation to avoid friction member.It is right in the top of white space
Friction member is combed, and be can be avoided the impurity particle that combing is formed and is fallen on display area, so that display be effectively reduced
There is the undesirable incidence of alignment-type in substrate.
Certainly, implement any of the products of the present invention or method it is not absolutely required at the same reach all the above excellent
Point.Other features and advantages of the present invention will illustrate in subsequent specification embodiment, also, partly implement from specification
It is become apparent in example, or understand through the implementation of the invention.The purpose of the embodiment of the present invention and other advantages can pass through
Specifically noted structure is achieved and obtained in the specification, claims and drawings.
Detailed description of the invention
Attached drawing is used to provide to further understand technical solution of the present invention, and constitutes part of specification, with this
The embodiment of application technical solution for explaining the present invention together, does not constitute the limitation to technical solution of the present invention.Attached drawing
In the shapes and sizes of each component do not reflect actual proportions, purpose is schematically illustrate the content of present invention.
Fig. 1 is the structural schematic diagram after the cleaning of existing array substrate;
Fig. 2 is the cross-sectional view after existing array substrate friction orientation;
Fig. 3 is existing friction member to the structural schematic diagram after existing array substrate friction orientation;
Fig. 4 is the cross-sectional view after the cleaning of existing array substrate;
Fig. 5 is that the invention shows the structural schematic diagrams after formation display base plate in the friction orientation method of substrate;
Fig. 6 is that the invention shows form flatness layer on the non-flat forms layer of display base plate in the friction orientation method of substrate
Structural schematic diagram afterwards;
Fig. 7 is that the invention shows the knots in the friction orientation method of substrate after the surface of display base plate forms orientation film layer
Structure schematic diagram;
Fig. 8 is that the invention shows the structures for carrying out friction orientation to orientation film surface in the friction orientation method of substrate to show
It is intended to;
Fig. 9 is that the invention shows the structural schematic diagrams combed in the friction orientation method of substrate to friction member;
Figure 10 is that the invention shows the structural schematic diagrams of the friction member after combing in the friction orientation method of substrate;
Figure 11 is that the invention shows the structural schematic diagrams after flushing display base plate in the friction orientation method of substrate;
Figure 12 is that the invention shows the structural schematic diagrams of substrate.
Description of symbols:
1- array substrate;2- impurity particle;3- non-flat forms layer;
4- friction member;5- moisture film;6- display base plate;
7- flatness layer;8- orientation film layer;401- basement membrane;
402- friction hair;The display area 601-;602- non-display area;
603- white space;6021-GOA unit;6022-CLK unit.
Specific embodiment
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawings and examples.Following embodiment
For illustrating the present invention, but it is not intended to limit the scope of the invention.It should be noted that in the absence of conflict, the application
In embodiment and embodiment in feature can mutual any combination.
Fig. 2 is the cross-sectional view after existing array substrate friction orientation;Fig. 3 is existing friction member to existing array substrate friction
Structural schematic diagram after orientation;Fig. 4 is the cross-sectional view after the cleaning of existing array substrate.As shown in Figure 2, Figure 3 and Figure 4, existing
Array substrate 1 easily occurs in the display area of array substrate 1 after carrying out friction orientation to array substrate 1 using friction member
The bad problem of the alignment-type of edge aggregation.It is found by parsing, generating the above problem is since the surface of array substrate 1 is left
There is a large amount of impurity particle 2, these impurity particles 2 are to rub due to friction member to array substrate 1 there are first aspect
After orientation, a large amount of impurity particle during which can be generated, these impurity particles include the micro- of friction member abrasion alignment layer surface generation
The detrital grain that little particle and friction member loss generate, as shown in Figure 2.Second aspect be due to during friction orientation,
The non-display area of array substrate has non-flat forms layer 3, uneven at the non-flat forms of non-flat forms layer 3, can cause to friction member 4
Damage keeps friction member 4 impaired and generates impurity particle, as shown in Figure 3 and Figure 4.The third aspect be due in the process of cleaning, by
It is uneven in non-flat forms layer 3, lead to not form the moisture film 5 of stable and uniform on the surface of non-display area, moisture film 5 can be by battle array
The purging of impurity particle 2 on the non-display area of column substrate 1 forms aggregation, makes array base to the display area of array substrate 1
Plate 1 still leaves a large amount of impurity particle 2 after the washing, as shown in Figure 4.
In order to solve existing display base plate easily occur in display area edge aggregation alignment-type it is bad the problems such as.This hair
It is bright that a kind of display base plate and its friction orientation method are provided, by forming flatness layer on the non-flat forms layer of display base plate, one
Aspect reduces non-flat forms layer during friction orientation and causes to damage to friction member, reduces the impurity particle that friction member generates;Separately
It on the one hand, can be in the water of non-flat forms layer surface formation stable and uniform during rinsing the impurity particle on display base plate surface
Film promotes flushing effect, avoids the impurity particle on non-flat forms layer from purging to the surface of display area, display base is effectively reduced
There is the undesirable incidence of alignment-type in plate.
Below by specific embodiment, the technical solution that the present invention will be described in detail.
Fig. 5~Figure 11 is the schematic diagram of the present embodiment display base plate friction orientation method process.Display base plate friction orientation
Method includes:
(1) display base plate is formed.The display base plate 6 includes multiple display areas 601, multiple non-display areas 602 and sky
White region 603, non-display area 602 are located at the two sides of display area 601, and white space 603 is located at adjacent non-display area
Between the 602 and periphery of display base plate 6.Non-display area 602 includes GOA (Gate Driveron Array, array substrate
Row driving) unit 6021 and CLK unit 6022, CLK unit 6022 is for controlling the work of GOA unit 6021.Non-display area 602
The film layer structure on surface is uneven, forms non-flat forms layer 3, as shown in Figure 5.
(2) flatness layer is formed on non-flat forms layer, so that the surface of non-flat forms layer forms plane.On non-flat forms layer
Forming flatness layer includes: to form rubberised layer on the non-flat forms layer of non-display area 602 by coating technique, which will
It is covered at the non-flat forms of non-flat forms layer;Then the rubberised layer at the non-flat forms of non-flat forms layer is exposed instead using mask plate
It answers;Develop to rubberised layer, removes at the non-flat forms of non-flat forms layer with outer rubberised layer;Finally by heating, to non-flat forms
Rubberised layer at the non-flat forms of layer is solidified, and makes rubberised layer stable molding on non-flat forms layer, forms flatness layer 7.Flatness layer 7
The surface of non-flat forms layer is set to form smooth plane.Flatness layer 7 will be filled and led up at the non-flat forms of non-flat forms layer in the present embodiment, flat
Flush elsewhere other than the surface of layer 7 and the flatness layer 7 of non-display area 602, so that the table of non-display area
Face forms smooth plane, as shown in Figure 6.The material of flatness layer 7 uses light-sensitive material in the present embodiment, further, flat
The material of layer 7 is using the soft material for having light sensitive characteristic.
(3) orientation film layer is formed on the surface of display base plate.Forming orientation film layer on the surface of display base plate includes: aobvious
Show that the surface of substrate 6 coats one layer of alignment film, then handling by hot setting solidifies alignment film, forms orientation film layer 8.Its
In, it is each formed with orientation film layer 8 on the display area 601 of display base plate, non-display area 602 and white space 603, such as
Shown in Fig. 7.
(4) friction orientation is carried out to above-mentioned orientation film surface using friction member.Using friction member to above-mentioned orientation film layer
Surface carry out friction orientation include: to contact friction member with 8 surface of orientation film layer, friction member from the first end of display base plate 6 to
The second end of display base plate 6 is mobile, carries out friction orientation to the surface of orientation film layer 8, forms a constant inclination on 8 surface of orientation film layer
The pre-tilt angle of tilted direction.In the present embodiment, the friction orientation direction of friction member is by display base plate 6 far from white space 603
One end is mobile to the extreme direction close to white space 603, until the top for being located at white space 603.Embodiment is being rubbed
It wipes in orientation process, impurity particle 2 can be formed on the surface of display base plate 6, as shown in Figure 8.
(5) friction member is combed.Carrying out combing to friction member includes: when friction member completes matching to display base plate 6
To after 8 friction orientation of film layer, friction member is moved to the top of the white space 603 of display base plate 6, i.e., adjacent non-display area
Between the 602 and periphery of display base plate 6.Friction member is carried out combing 5~10 times in the top of white space 603, reparation rubs
The state for wiping part surface slightly damaged, generates impurity particle when carrying out friction orientation to avoid friction member 4.Wherein, to friction
It is the friction hair on combing friction member to unification by the way that friction member is carried out 5~10 frictions to glass substrate that part, which carries out combing,
Direction, and the friction hair damaged on friction member and the impurity particle to rub on hair are removed, as shown in Figure 9.
Wherein, friction member 4 can use nylon cloth or cotton.Friction member 4 includes basement membrane 401 and is arranged on basement membrane 401
Friction hair 402, friction hair 402 be used for orientation film surface carry out friction orientation, as shown in Figure 10.When friction member 4 carries out
During friction orientation, friction member 4 is from the initial segment of friction to end, the friction meeting slightly damaged of hair 402, and accumulates a certain amount of
Impurity.After friction member 4 completes the friction orientation to a display base plate 6, in the end of friction, that is, white space 603
Top, carry out the combing to friction member 4, the inclined direction for the hair 402 that makes to rub on friction member 4 is consistent, and removes on friction member
The friction hair of damage and the impurity particle to rub on hair.In the present embodiment, combing in the end of friction to friction member 4 can
With selective progress, for example after carrying out friction orientation to every display base plate, all friction member is combed, or to every
After ten display base plates carry out friction orientation, then friction member is combed.
The invention shows the friction orientation method of substrate, by above the white space of display base plate, to friction member into
Row combing, repairs the part wears on friction hair surface, and reduces friction member and generate impurity particle during carrying out friction orientation,
Meanwhile in friction member carding process, it can be avoided the impurity particle that combing is formed and fall on display area, to have
Effect reduces display base plate and the undesirable incidence of alignment-type occurs.
(6) display base plate is rinsed.Rinsing display base plate includes: using ARC (After Rubbing Clean) technique to aobvious
Show that 6 surface of substrate is rinsed, forms the moisture film 5 of stable and uniform on 6 surface of display base plate, existed with rinsing 6 surface of display base plate
The impurity particle 2 generated during friction orientation, as shown in figure 11.Wherein, the flushing direction for rinsing display base plate is by showing
The first end of substrate 6 is mobile to the second end of display base plate 6, carries out the direction of friction orientation to orientation film surface with friction member
It is identical, so that the impurity particle on white space be avoided to enter display area during the rinsing process.
The method of display base plate friction orientation provided in this embodiment passes through the non-display area field surface shape in display base plate
At flatness layer, on the one hand reduces non-display area during friction orientation and friction member is caused to damage, reduce friction member and generate
Impurity particle;On the other hand it during rinsing the impurity particle on display base plate surface, can be formed in non-display area field surface
The moisture film of stable and uniform promotes flushing effect, the impurity particle on non-display area is avoided to purge to the surface of display area,
Display base plate is effectively reduced and the undesirable incidence of alignment-type occurs.
In addition, the preparation process of the present embodiment can be realized using the Preparation equipment of existing maturation, prior art is improved
It is smaller, can be compatible with existing preparation process well, therefore there is low manufacture cost, be easy to technique realization, high production efficiency
It is excellent with yields height etc., it has a good application prospect.
Technical concept based on previous embodiment, the present invention also provides a kind of preparation method of display base plate, including it is preceding
The method for stating embodiment display base plate friction orientation.
Figure 12 is that the invention shows the structural schematic diagrams of substrate.Technical concept based on previous embodiment, invention also provide
A kind of display base plate, the preparation method including previous embodiment display base plate are prepared.Display base plate of the invention includes
Array substrate and color membrane substrates.For the present embodiment by taking display base plate is array substrate as an example, which includes that multiple intervals are set
The display area 601 set and the white space 603 positioned at 6 end of display base plate.It is not left on the surface of display area 601
Impurity particle, so that display base plate, which is effectively reduced, the undesirable incidence of alignment-type occurs, as shown in figure 12.
In the description of the embodiment of the present invention, it is to be understood that term " middle part ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "vertical", "horizontal", "top", "bottom" "inner", "outside" be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In the description of the embodiment of the present invention, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection;It can be mechanical connection, be also possible to be electrically connected;Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Although disclosed herein embodiment it is as above, the content only for ease of understanding the present invention and use
Embodiment is not intended to limit the invention.Technical staff in any fields of the present invention is taken off not departing from the present invention
Under the premise of the spirit and scope of dew, any modification and variation, but the present invention can be carried out in the form and details of implementation
Scope of patent protection, still should be subject to the scope of the claims as defined in the appended claims.
Claims (11)
1. a kind of display base plate friction orientation method, the display base plate includes display area and non-display area, described non-aobvious
Show that the surface in region has non-flat forms layer, which is characterized in that the display base plate friction orientation method includes:
Flatness layer is formed on the non-flat forms layer, so that the surface of the non-flat forms layer forms plane;
Orientation film layer is formed on the surface of the display base plate;
Friction orientation is carried out using surface of the friction member to above-mentioned orientation film layer;
Rinse above-mentioned display base plate.
2. display base plate friction orientation method according to claim 1, which is characterized in that described to use friction member to above-mentioned
The surface of orientation film layer carries out after friction orientation, further includes:
The friction member is combed, generates impurity particle during friction orientation to avoid the friction member.
3. display base plate friction orientation method according to claim 2, which is characterized in that the display base plate further includes sky
White region, it is described friction orientation is carried out to the surface of above-mentioned orientation film layer using friction member after, the display base plate friction takes
To method further include:
The friction member is combed in the top of the white space.
4. display base plate friction orientation method according to claim 3, which is characterized in that the display base plate includes multiple
Display area and multiple non-display areas, the white space is between adjacent non-display area and the display base plate
Periphery.
5. display base plate friction orientation method according to claim 2, which is characterized in that combed to the friction member
Reason, comprising:
The friction member is subjected to 5~10 frictions to glass substrate.
6. display base plate friction orientation method according to claim 1, which is characterized in that the shape on the non-flat forms layer
At flatness layer, comprising:
Rubberised layer is formed on the non-flat forms layer;
Reaction is exposed to the rubberised layer at the non-flat forms of the non-flat forms layer;
Develop to the rubberised layer, removes at the non-flat forms with outer rubberised layer;
Rubberised layer at the non-flat forms is solidified, the flatness layer is formed.
7. display base plate friction orientation method according to claim 1, which is characterized in that the material of the flatness layer uses
Light-sensitive material.
8. display base plate friction orientation method according to claim 1, which is characterized in that described to rinse above-mentioned display base plate
Include:
Display base plate surface formed stable and uniform moisture film, by the moisture film to display base plate surface during friction orientation
The impurity particle of generation is rinsed.
9. display base plate friction orientation method according to claim 1, which is characterized in that described to use friction member to above-mentioned
The direction that the surface of orientation film layer carries out friction orientation is identical as the flushing flushing direction of display base plate.
10. a kind of preparation method of display base plate, which is characterized in that rub including any display base plate of claim 1-9
Wipe method for alignment.
11. a kind of display base plate, which is characterized in that be prepared by the preparation method of display base plate described in any one of claim 10.
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