CN104765171B - Display base plate, display device and preparation method thereof - Google Patents
Display base plate, display device and preparation method thereof Download PDFInfo
- Publication number
- CN104765171B CN104765171B CN201510184914.2A CN201510184914A CN104765171B CN 104765171 B CN104765171 B CN 104765171B CN 201510184914 A CN201510184914 A CN 201510184914A CN 104765171 B CN104765171 B CN 104765171B
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- Prior art keywords
- base plate
- display base
- lead
- alignment film
- convex portion
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Classifications
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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
- G02F1/1345—Conductors connecting electrodes to cell terminals
- G02F1/13458—Terminal pads
-
- 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
-
- 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
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention provides a kind of display base plate, it is characterized in that, including viewing area and welding disking area, the viewing area and the welding disking area are coated with alignment film material, at least one lead is provided with the welding disking area, the surface of the every lead includes concaveconvex structure, and the convex portion in the concaveconvex structure is not covered by alignment film material and can be with chip on film conductive contact, and the recess in the concaveconvex structure accommodates alignment film material.The present invention, when carrying out alignment film coating, can be coated by the way that the lead of the welding disking area of display base plate is arranged into concaveconvex structure on whole substrate, so as to avoid the edge of the alignment film on the display base plate being made from producing Halo regions.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of display base plate, display device and preparation method thereof.
Background technology
In display industry especially TFT-LCD manufacturings, with the expansion of industry line, the coating of alignment film is generally selected
With ink jet printing mode, the mode of printing needs the viscosity of alignment film low, typically smaller than 15cp.
Because alignment film is to be coated on liquid on substrate, in alignment film solvent evaporation process, in orientation film figure
Periphery, faster, simultaneously because alignment film solvent surface tension is acted on, solute is constantly to most for the evaporation rate of orientation film edge solvent
Edge is accumulated, and occurs that edge alignment film thickness is partially thick, close to adjacent edges alignment film thickness thin phenomenon partially, this part alignment film
Thickness abnormal area is alignment film non-uniform areas, i.e. Halo regions, as shown in figure 1, being coated with orientation on the surface of substrate 10
In film 20, wherein a-quadrant is the partially thick region of alignment film, and B regions are the partially thin region of alignment film, and C regions are alignment film homogeneous area,
And the viscosity of alignment film is lower, the Halo regions of formation are bigger, and then the periphery of product can be influenceed to show, this is become as narrow side
Frame and the bottleneck of ultra-narrow edge frame product exploitation.
Traditional alignment film preparation technology is that alignment film one by one is printed out on substrate in units of each substrate
Pattern, as shown in Fig. 2 each substrate includes viewing area 101 and welding disking area 102, orientation is coated with viewing area 101
Film, in traditional manufacture craft, the coating of alignment film is carried out to the viewing area 101 of each substrate respectively, so as to make
It is more complicated in technique, and alignment film is respectively coated, the alignment film at the edge of the viewing area 101 of each substrate occurs
Halo areas.Display panel edge sectional schematic diagram after into box as shown in figure 3, the display base plate prepared by the above method, into
In display panel after box, Halo areas occur in the edge of the alignment film 20 coated on substrate 10, so that sealing area 30
Design be restricted.
The content of the invention
It is an object of the invention to provide a kind of display base plate, display device and preparation method thereof, by by display base plate
The lead of welding disking area is arranged to concaveconvex structure, when carrying out alignment film coating, can be coated on whole substrate, so that
The edge of the alignment film on the display base plate being made is avoided to produce Halo regions.
To reach above-mentioned purpose, the invention provides a kind of display base plate, it is characterised in that including viewing area and pad
Region, the viewing area and the welding disking area are coated with alignment film material, are provided with least on the welding disking area
Do not covered by alignment film material one lead, the convex portion that the surface of the every lead is included in concaveconvex structure, the concaveconvex structure
Lid and can be with chip on film conductive contact, the recess in the concaveconvex structure accommodates alignment film material.
Wherein, width or length direction of the convex portion with the recess in the lead are arranged alternately.
Wherein, vertical cross-section of the convex portion on the direction that convex portion is connected with recess is trapezoidal, and the angle of gradient be 0 °~
60°。
Wherein, thickness of the lead at the recess bottom surface is 150-600nm, and the top surface of the convex portion is higher than described
The bottom surface of recess is not more than 200nm.
There is provided a kind of display device according to another aspect of the present invention, it is characterised in that including above-mentioned display base plate.
There is provided a kind of preparation method of display base plate according to a further aspect of the invention, it is characterised in that the display
Substrate includes viewing area and welding disking area, and methods described includes：
There is the lead of concaveconvex structure at least one surface of welding disking area formation；
The display base plate substrate all region coating alignment film materials and solidify so that every lead it is recessed
Convex portion in male structure is not covered by the alignment film material and can be with chip on film conductive contact, and recess accommodates orientation membrane material
Material.
Preferably, the convex portion of the concaveconvex structure of every lead replaces in the width or length direction of lead with recess and set
Put.
Preferably, vertical cross-section of the convex portion of the concaveconvex structure of every lead on the direction that convex portion is connected with recess is ladder
Shape, and the angle of gradient is 0 °~60 °.
Wherein, the thickness of the recess of the concaveconvex structure of every lead is 150nm~600nm, and every lead is recessed
The top surface of the convex portion of male structure is not more than 200nm higher than the bottom surface of recess.
According to the yet other aspects of the present invention, there is provided a kind of preparation method of display device, it is characterised in that the side
Method includes：
Make the first display base plate and the second display base plate, wherein the first display base plate and/or the second display base plate according to
The preparation method of any of the above-described display base plate makes；
By first display base plate and the second display base plate to box.
Display base plate that the present invention is provided, display device and preparation method thereof, bumps are arranged to by the lead of welding disking area
Structure, when coating alignment film, the alignment film material being coated on lead is gathered in the recess of concaveconvex structure, and the convex portion of lead
Alignment film material is not coated with, so as to contact the conducting for carrying out signal with chip on film by convex portion；And based on upper
Structure is stated, the coating of alignment film can be carried out to whole substrate during display base plate is made, it is same especially on substrate
When make in the technique of multiple display base plates, by integrally coating alignment film material on substrate so that the margin location of alignment film
In the edge of substrate, so as to avoid in the edge formation Halo regions of display base plate.
Brief description of the drawings
Fig. 1 shows the structural representation in the Halo regions of the orientation film edge of existing display base plate.
Fig. 2 shows the process schematic representation of existing making display base plate.
Fig. 3 shows the existing display panel edge sectional schematic diagram into after box.
The structural representation for the existing lead that Fig. 4 is shown.
Fig. 5 shows the structural representation of the lead of the display base plate of the present invention.
Fig. 6 shows the structural representation after coating alignment film on the lead of the display base plate of the present invention.
Fig. 7 shows the flow chart of the preparation method of the display base plate of the present invention.
Fig. 8 shows the process schematic representation of the making display base plate of the present invention.
Embodiment
With reference to the accompanying drawings and examples, the embodiment to the present invention is further described.Following examples are only
For clearly illustrating technical scheme, and it can not be limited the scope of the invention with this.
There is provided a kind of display base plate in one embodiment of the present of invention.
The display base plate that the present invention is provided includes viewing area and welding disking area, and viewing area and welding disking area are applied
Alignment film material is covered with, at least one lead is provided with welding disking area.
The structural representation for the existing lead that Fig. 4 is shown.As shown in figure 4, existing lead 40 is flat configuration, when
When alignment film 20 is coated on lead 40, the overall covering lead 40 of alignment film 20, because alignment film is dielectric film, can cause lead
40 can not make electrical contact with chip on film, cause signal can not input substrate, therefore, prepared by the structural requirement of existing lead 40
Alignment film material can not be coated to lead portion during display base plate.
Fig. 5 shows the structural representation of the lead of the display base plate of the present invention.
Fig. 6 shows the structural representation after coating alignment film on the lead of the display base plate of the present invention.
The surface of the every lead 40 of the display base plate of the application all includes concaveconvex structure, as it can be seen in figures 5 and 6, concavo-convex knot
Convex portion in structure is not covered by alignment film 20 and can be with chip on film conductive contact, and the recess in the concaveconvex structure, which is accommodated, matches somebody with somebody
To film 20.
In the above-described embodiments, the convex portion of concaveconvex structure can replace with recess in the width or length direction of lead
Set, i.e., convex portion and recess can be strip, and the recess of strip and convex portion are arranged alternately, because recess is connected with convex portion, convex portion
Between can realize the connection of signal so that when alignment film is covered on lead, pass through convex portion conductive with chip on film
Contact, you being conductively connected for lead and chip on film is realized, so that signal is input to substrate.
In addition, concaveconvex structure can also be arranged to the convex portion for having in spot distribution on smooth bottom, by smooth
Bottom lead is connected, electrically connected by the convex portion of point-like with chip on film.
In addition, the vertical cross-section on the direction that the structure setting of convex portion is connected into convex portion with recess is trapezoidal, and the angle of gradient
For 0 °~60 °, the setting of this trapezium structure so that when coating alignment film material, be coated in the orientation membrane material at the top of convex portion
Material is slipped to recess by trapezoidal hypotenuse, so that being not coated with alignment film material at the top of convex portion.
In one embodiment, due to configuration lead height limitation, thickness of the lead at recess bottom surface is
150-600nm, and the top surface of convex portion is not more than 200nm higher than the bottom surface of recess.
There is provided a kind of method for making above-mentioned display base plate in another embodiment of the present invention.
Fig. 7 shows the flow chart of the preparation method of the display base plate of the present invention.
Reference picture 7, the display base plate preparation method of the present embodiment, is specifically included：
S1, at least one surface of welding disking area formation of display base plate there is the lead of concaveconvex structure；
S2, display base plate substrate all region coating alignment film materials and solidify so that every lead it is recessed
Convex portion in male structure is not covered by the alignment film material and can be with chip on film conductive contact, and recess accommodates orientation membrane material
Material.
In existing method, the making of display base plate is typically to make multiple display base plates simultaneously on substrate, still, by
In the insulating properties of alignment film, the lead of welding disking area can not be applied alignment film, so that in manufacturing process, to each of substrate
Individual display base plate carries out the coating of alignment film respectively, and its manufacturing process is complicated, and the coating processes cause each display base plate
Orientation film edge Halo regions occur.
And the application is making all region coating alignment film materials of the substrate of display base plate simultaneously by above-mentioned method
Solidification, then by being cut into display base plate.Therefore, lead is prepared into concavo-convex knot by the present invention when preparing display base plate
Structure, the concaveconvex structure of the lead of the present embodiment can be that convex portion replaces in the width or length direction of lead with recess and set
Put, you can be the recess of strip and convex portion is arranged alternately or that convex portion is arranged into distribution of shapes is smooth at one
On bottom surface, the gap between convex portion is regard as recess.
In addition, prepared by vertical cross-section of the convex portion of the concaveconvex structure of every lead on the direction that convex portion is connected with recess
As trapezoidal, and the angle of gradient is 0 °~60 °.Convex portion is prepared into trapezium structure so that during alignment film is coated, coating
Orientation film liquid at the top of convex portion is slipped to recess by trapezoidal hypotenuse, so that being not coated with orientation at the top of convex portion
Film.
In addition, in order to realize that recess is connected after recess coating alignment film material, convex portion makes electrical contact with chip on film,
The thickness of the recess of concaveconvex structure is set to 150nm~600nm, and the top surface of convex portion is not more than higher than the bottom surface of recess
200nm。
In the present embodiment, multiple display base plates, such as Fig. 8 can be made simultaneously on one piece of substrate when making display base plate
It is shown, in manufacturing process, the region of each display base plate is set on substrate, and in the welding disking area of each display base plate
102 leads of the arrangement with concaveconvex structure, then coat alignment film material over the entire substrate, because lead has concavo-convex tie
Structure so that the alignment film material being coated on lead convex portion is slipped to recess, so that convex portion is not covered by alignment film material.
The display base plate prepared by the above method, because the fringe region of alignment film is located at the edge of substrate, each display base plate
The thickness of the alignment film of viewing area 101 is uniform, is not in Halo regions.
In yet another embodiment of the present invention there is provided a kind of display device, the display device includes above-mentioned display base
Plate.
In this example it is shown that device is made using above-mentioned display base plate, because Halo regions are not present in edge, make
The edge display function for obtaining display device is normal, so as to realize the narrow frame and ultra-narrow of display device to a certain extent
Frame.
According to above-mentioned display device, there is provided a kind of making side of display device in the yet another embodiment of the present invention
Method, this method includes：
Make the first display base plate and the second display base plate, wherein the first display base plate and/or the second display base plate according to
The preparation method of above-mentioned display base plate makes；
By first display base plate and the second display base plate to box.
First display base plate and the second display base plate of the present embodiment, can be by the preparation method of above-mentioned display base plate
Make, so as to avoid the edge of display base plate from influenceing display because alignment film is in uneven thickness, so as to influence display device
Frame design.
In addition, the display base plate of the display device of the present invention can be one in the first display base plate and the second display base plate
The individual preparation method by above-mentioned display base plate is made, and another can use other methods to be made, and not limit herein
It is fixed.It will also be appreciated that when including multiple display base plates on one substrate, to also including cutting into single display surface after box
The technique of plate, this is well known to those skilled in the art, and will not be repeated here.
Display base plate that the present invention is provided, display device and preparation method thereof, bumps are arranged to by the lead of welding disking area
Structure, when coating alignment film, the alignment film material being coated on lead is gathered in the recess of concaveconvex structure, and the convex portion of lead
Alignment film material is not coated with, so as to contact the conducting for carrying out signal with chip on film by convex portion；And based on upper
Structure is stated, the coating of alignment film can be carried out to whole substrate during display base plate is made, it is same especially on substrate
When make in the technique of multiple display base plates, by integrally coating alignment film material on substrate so that the margin location of alignment film
In the edge of substrate, so as to avoid in the edge formation Halo regions of display base plate.In addition, passing through the side of overall coated substrate
Method, can simplify alignment film coating processes, improve the preparation efficiency of display base plate.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, some improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of display base plate, it is characterised in that including viewing area and welding disking area, the viewing area and the pad area
Domain is coated with alignment film material, and at least one lead, the surface bag of the every lead are provided with the welding disking area
Include convex portion in concaveconvex structure, the concaveconvex structure not by alignment film material cover and can with chip on film conductive contact, it is described
Recess in concaveconvex structure accommodates alignment film material.
2. display base plate as claimed in claim 1, it is characterised in that the width of the convex portion and the recess in the lead
Direction or length direction are arranged alternately.
3. display base plate as claimed in claim 1, it is characterised in that the convex portion is on the direction that convex portion is connected with recess
Vertical cross-section is trapezoidal, and the angle of gradient is 0 °~60 °.
4. display base plate as claimed in claim 1, it is characterised in that thickness of the lead at the recess bottom surface is
150-600nm, the top surface of the convex portion is not more than 200nm higher than the bottom surface of the recess.
5. a kind of display device, it is characterised in that including the display base plate described in the claims any one of 1-4.
6. a kind of preparation method of display base plate, it is characterised in that the display base plate includes viewing area and welding disking area, institute
The method of stating includes：
There is the lead of concaveconvex structure at least one surface of welding disking area formation；
The display base plate substrate all region coating alignment film materials and solidify, make the concaveconvex structure of the every lead
In convex portion do not covered by the alignment film material and can be with chip on film conductive contact, recess accommodates alignment film material.
7. the preparation method of display base plate as claimed in claim 6, it is characterised in that the concaveconvex structure of the every lead
Width or length direction of the convex portion with recess in lead are arranged alternately.
8. the preparation method of display base plate as claimed in claim 6, it is characterised in that the concaveconvex structure of the every lead
Vertical cross-section of the convex portion on the direction that convex portion is connected with recess is trapezoidal, and the angle of gradient is 0 °~60 °.
9. the preparation method of display base plate as claimed in claim 6, it is characterised in that the concaveconvex structure of the every lead
The thickness of recess is 150nm~600nm, and the top surface of the convex portion of the concaveconvex structure of the every lead is higher than the bottom surface of recess not
More than 200nm.
10. a kind of preparation method of display device, it is characterised in that methods described includes：
The first display base plate and the second display base plate are made, wherein the first display base plate and/or the second display base plate are according to right
It is required that the preparation method of the display base plate described in any one of 6-9 makes；
By first display base plate and the second display base plate to box.
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| CN201510184914.2A CN104765171B (en) | 2015-04-17 | 2015-04-17 | Display base plate, display device and preparation method thereof |
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| CN201510184914.2A CN104765171B (en) | 2015-04-17 | 2015-04-17 | Display base plate, display device and preparation method thereof |
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| CN104765171A CN104765171A (en) | 2015-07-08 |
| CN104765171B true CN104765171B (en) | 2017-09-01 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107329313A (en) * | 2017-08-17 | 2017-11-07 | 惠科股份有限公司 | A kind of display panel and display device |
| CN108493200A (en) * | 2018-05-28 | 2018-09-04 | 武汉华星光电半导体显示技术有限公司 | A kind of production method of array substrate, array substrate and display device |
| US11183520B2 (en) | 2019-07-04 | 2021-11-23 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Display panel with insulating stripes in non-display area and method of fabricating thereof |
| CN110277412B (en) * | 2019-07-04 | 2021-09-03 | 武汉华星光电技术有限公司 | Display panel and manufacturing method thereof |
| CN110673399B (en) * | 2019-09-03 | 2021-04-02 | Tcl华星光电技术有限公司 | Display panel, preparation method thereof and display device |
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| CN101109874A (en) * | 2006-07-18 | 2008-01-23 | 株式会社Ips先驱高新技术 | Liquid crystal display device |
| CN201754209U (en) * | 2010-01-20 | 2011-03-02 | 深圳华映显示科技有限公司 | Liquid crystal panel |
| CN102236208A (en) * | 2010-04-22 | 2011-11-09 | 北京京东方光电科技有限公司 | Liquid crystal display |
| CN103033992A (en) * | 2012-12-21 | 2013-04-10 | 京东方科技集团股份有限公司 | Liquid crystal display substrate and preparation method thereof and liquid crystal display device |
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| CN101109874A (en) * | 2006-07-18 | 2008-01-23 | 株式会社Ips先驱高新技术 | Liquid crystal display device |
| JP2008026345A (en) * | 2006-07-18 | 2008-02-07 | Ips Alpha Technology Ltd | Liquid crystal display device |
| CN201754209U (en) * | 2010-01-20 | 2011-03-02 | 深圳华映显示科技有限公司 | Liquid crystal panel |
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