CN105911735A - Manufacturing method of liquid crystal display device - Google Patents
Manufacturing method of liquid crystal display device Download PDFInfo
- Publication number
- CN105911735A CN105911735A CN201610427538.XA CN201610427538A CN105911735A CN 105911735 A CN105911735 A CN 105911735A CN 201610427538 A CN201610427538 A CN 201610427538A CN 105911735 A CN105911735 A CN 105911735A
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- CN
- China
- Prior art keywords
- liquid crystal
- crystal display
- substrate
- drive circuit
- external drive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- G02F1/133351—Manufacturing of individual cells out of a plurality of cells, e.g. by dicing
-
- 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)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Liquid Crystal (AREA)
Abstract
The invention relates to a manufacturing method of a liquid crystal display device. The manufacturing method includes the steps of manufacturing a liquid crystal display element and loading an external drive circuit on a terminal part of the liquid crystal display element. The manufacturing method is characterized in that in the technological processes of manufacturing the liquid crystal display element and carrying the external drive circuit, when the area of a substrate is 1.5 m<2> or above, firstly, the whole substrate is coated with a PI alignment layer, and then the portion, needing to be coated with a binder and accumulated around liquid crystals, of the alignment layer and the portion, accumulated on an electrode terminal part connected with the external drive circuit, of the alignment layer are selectively removed through a plasma discharge local cutting method. It is possible to manufacture the high-reliability liquid crystal display device through the substrate with the area of 1.5 m<2> or above, and therefore production efficiency can be greatly improved.
Description
Technical field
The present invention relates to a kind of Liquid crystal disply device and its preparation method, particularly to one at 1.5m2On above large-area substrates efficiently, the method that is properly formed required alignment film mould case.
Background technology
Since lcd technology starts application, both alignment layers (Alignment Layer) the fairly evenly orientation in the range of liquid crystal display of liquid crystal display cells should be made, the part making driving external electrical source used for liquid crystal display element and electrical connection again does not scribble the both alignment layers of insulating property (properties), and always this area needs the technical barrier solved.One layer of alignment film that so-called both alignment layers is coated onto on substrate (Substrate), the method in the past forming alignment film has two kinds, a kind of is glass Ya meter Te (Polyimide) (code name the is PI) resin the using thermostability material as both alignment layers, general forming method is first to be dissolved in the solvent (Solvent) of a few percent by this solubility PI material, form solution material to be then coated with on the glass substrate, then after evaporation, form both alignment layers.Another kind is with tetracarboxylic acid state acid two anhydrides (Tetra-carboxylic acid 2
Anhydride) with Ji Amin (Di-amin)
Combination reaction thing (Reactant) glass Ya meter Te acid, be coated with on the glass substrate, the most sintered method dehydrating condensation formed PI resin both alignment layers.In order to effectively carry external drive circuit in the portion of terminal of liquid crystal display cells, it is necessary in the both alignment layers of corresponding site removing insulating property (properties), and the method removing above-mentioned formation resin alignment film, the method for the strong ammonia solvent liquid long period of soaking that dissolubility is strong can be used to solve.But industrially apply this etch to remove insulation both alignment layers, owing to time length, efficiency are the lowest, it is clear that be unpractical.Therefore, it is the most all to form required mould case by printing process, i.e. uses PI printer to form desired mould case.Desired mould case is pears ground shape plate (the Pear Iike using photoresist (Photosensitive resin) plate to make
Skin), PI liquid is transferred on substrate.In the past it was verified that for 730 X 920mm2 The substrate of following specification, makes to be feasible in this way.Along with the development of liquid crystal indicator, in order to improve production efficiency and yield further, it is desirable to the family status template area in manufacturing process does greatly as far as possible, but, for 1200 X 1300mm 2
Substrate, during fabrication due to many reasons such as unbalance stress, the alignment film thickness (Layer thickness) that cylinder two ends are formed is uneven, is deformed, will be unable to be properly formed mould case (Pattern) so that yields declines.For 1500 X 1800mm2 Substrate, result is to obtain certified products completely at all.When the area of template reaches 1. 5m 2Time above, former desired model oneself cannot properly form alignment film on substrate with printing process.Therefore, it is proposed to required this problem of mould case how could be formed.
The present invention seeks to propose a kind of method on large area substrates efficiently, being properly formed required mould case, thus create a kind of liquid crystal indicator and manufacture new method, overcome above-mentioned deficiency with this.
Summary of the invention
For reaching above-mentioned purpose, the technical solution used in the present invention is: the manufacture method of a kind of liquid crystal indicator, including manufacturing liquid crystal display cells and carrying external drive circuit in the portion of terminal of liquid crystal display cells, it is critical only that of its invention: in the technical process manufacturing liquid crystal display cells and lift-launch external drive circuit, when substrate area reaches 1.5m 2Time above, first substrate gross area is coated with PI both alignment layers, then the method using plasma (Plasma) electric discharge partial cut, remove selectively and be deposited on neighboring liquid crystal in the both alignment layers part needing to scribble binding agent, and the electrode terminal section being connected with external drive circuit the both alignment layers part piled up.
nullOn the basis of technique scheme, further scheme has: can arrange several identical liquid crystal display cells pictures on described one piece of substrate simultaneously，Each picture is arranged in a matrix，After monoblock substrate gross area coating PI both alignment layers，First remove and be deposited on neighboring liquid crystal the both alignment layers part needing to scribble binding agent，Then rub orientation to substrate，The above-mentioned part being removed alignment film retouches painting araldite，By liquid crystal configurations in the inner side of adhesive pattern，Again by two pieces of substrates relative to fitting into the large-scale liquid crystal display screen with some pieces of pictures，After the segmentation of each liquid crystal display cells is cut off，Stick Polarizer (Polarizer)，Make liquid crystal display cells r and remove alignment film with same method in the portion of terminal of this liquid crystal display cells，Carry in this portion of terminal again and stick external drive circuit，Further configuration is assembled into the liquid crystal indicator with backlight.Certainly on one piece of substrate, arrange that a liquid crystal display cells picture is also possible.
A kind of manufacture method of liquid crystal indicator, only carry in the technical process of external drive circuit at liquid crystal display cells, the method using plasma discharge partial cut, removes the both alignment layers part piled up in the electrode terminal section being connected with external drive circuit selectively.
Operation principle of the present invention is: a kind of new method innovated for the deficiency of the existing both alignment layers method by forming required mould case after printing, after the method forms the both alignment layers of gross area on substrate, unnecessary particular is removed, the precision making thickness improves, owe minimizing of counting, thus the manufacture method of a kind of liquid crystal indicator provided.
The above-mentioned method that gross area forms PI both alignment layers (glass Ya meter Te resin) on substrate, revolution can be used to be coated with print, cylinder press against painting print and otch is coated with impression method, and it is not necessarily intended to by conventional print process, as long as roll on the alignment film of certain thickness at substrate surface.
Optionally remove method as one, utilize atmospheric pressure state generation continuous print plasma, irradiate with nozzle or slit and on substrate, remove above-mentioned desired part.The principle removing alignment film is by only being cut off by Organic substance (Organic material) the combination reaction thing of the spike being activated with alignment film after plasma irradiates, resolving into gas.
Owing to technique scheme is used, the present invention compared with prior art has following advantages and effect: 1, the present invention uses 1.5m 2 Above substrate is made the liquid crystal indicator of high reliability and is possibly realized, and production efficiency so can be greatly improved.
2, liquid crystal display cells of the present invention is fabricated to liquid crystal indicator is periphery epoxy resin (Epoxy) glue and acrylic acid (Acryl) the glue bonding of two pieces of substrates to be got up.If having PI both alignment layers in adhesive segment, its bond effect is the poorest, and two pieces of substrates are just easier to separate.Adding the poisture-penetrability (Permeability) because of PI both alignment layers, the reliability making liquid crystal display cells declines.The method utilizing the present invention, removes the PI both alignment layers of binding part, can manufacture the liquid crystal indicator of high reliability.
3, because there being PI both alignment layers in the portion of terminal of liquid crystal display cells of the present invention, its insulating properties makes electrical connection to turn on.Utilize the present invention, after removing the PI both alignment layers of this part so that it is connected to become possibility with external electrical loop, can make good liquid crystal display picture.
Accompanying drawing explanation
Accompanying drawing 1 is the alignment film removing device plan structure schematic diagram of the present invention.
Wherein: 1, head, 2, photographing unit, 3, plasma generation nozzle, 4, transport table, 5, laser type range finder, 6, comprehensive alignment film forms substrate.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment the invention will be further described:
Embodiment one: the manufacture method of a kind of liquid crystal indicator, the size being made up of the pictures of six pieces 30 inches is 1500 X 1800mm 2TFT substrate, this substrate relatively to for another colour film substrate, the size of the liquid crystal layer resin column that this substrate defines certain thickness from the teeth outwards is 1500 X 1800mm 2 .After these two pieces of substrate cleanings, with soluble glass Ya meter Te (PI) resin material by duplicating and the painting print of roll printing method gross area.Then dried through the temperature of 100 DEG C, then through 190 DEG C, within 30 minutes, be sintered, make solubility PI solution evaporation, form the PI alignment film of 700A.
Alignment film removing device is as shown in Fig. 1.Equipped with being used for reading the photographing unit 2 of identifier on substrate on head 1, and nozzle 3a, 3b, 3c with generation atmos plasma of three a diameter of φ lmm, the above-mentioned substrate 6 defining PI alignment film is being carried on platform 4 by vac sorb.It is upper each equipped with laser type range finder 5a, 5b, 5c, for ensureing the atmos plasma generation nozzle distance in short transverse, and by this distance controlling in certain accuracy rating that atmos plasma produces nozzle 3a, 3b, 3c.First, photographing unit 2 camera lens reads the identifier on transport table 4, makes corrections the coordinate axes of the X direction of principal axis on transport table 4, Y direction of principal axis and 0 direction of rotation, to determine the action initial point of transport table 4.Atmos plasma generation nozzle 3 is positioned in the top of corresponding perimeter bond agent (being referred to as mucosa material) position.
Adjustment makes plasma be radiated on mucosa material position, the X axle of mobile transport table 4 and Y axle, can remove the PI alignment film part on the desired mucosa pattern removed with the speed of 100mm/sec.
Then, this substrate is after friction orientation, further in the above-mentioned part being removed alignment film, removes machine (Dispenser) with spray and retouches and coat araldite, uses liquid crystal drip-injection method, by liquid crystal configurations in the inner side of mucosa pattern.Again by relatively fitted by two pieces of substrates, after each liquid crystal display cells segmentation cut-out of the large-scale liquid crystal display screen of six 30 inches of pictures, stick Polarizer, make liquid crystal display cells.
The liquid crystal display cells that enforcement this programme is made has the highest adhesion strength.The result carrying out peeling off test with cutter thing is that, when binding agent (Adhesive) layer is not the most separated with the interface of substrate, substrate sheet material has crushed itself.It addition, through 1000 hours, in the high temperature and humidity test of 80 DEG C 90%, do not find that there is unfavorable condition in the surrounding in mucosa material portion, therefore can make the liquid crystal indicator of high reliability.
Embodiment two: by the liquid crystal display cells of embodiment one, is placed on equipped with in the alignment film removing device of the single atmos plasma generation capitiform formula of a diameter of φ 5mm.Dispenser nozzles in the portion of terminal of this liquid crystal display cells, occurring isoionic while, drives transport table 4 thus removes the alignment film in portion of terminal.Carry in this portion of terminal again and stick the TAB glued membrane equipped with IC drive circuit so that liquid crystal display cells carries has gone up external drive circuit.Further, configuration is assembled into the liquid crystal indicator with backlight, and while removing the alignment film of portion of terminal, plasma also makes the cleannes of portion of terminal be improved, making it more preferable with the then degree of TAB glued membrane, electric conductivity electrically has obtained tremendous raising.
Above-described embodiment only for technology design and the feature of the present invention are described, its object is to allow person skilled in the art will appreciate that present disclosure and to implement according to this, can not limit the scope of the invention with this.All equivalence changes made according to spirit of the invention or modification, all should contain within protection scope of the present invention.
Claims (2)
1. the manufacture method of a liquid crystal indicator, including manufacturing liquid crystal display cells and carrying external drive circuit in the portion of terminal of liquid crystal display cells, it is characterized in that: in the technical process manufacturing liquid crystal display cells and lift-launch external drive circuit, when substrate area reaches 1.5m 2Time above, first substrate gross area is coated with PI both alignment layers, then the method using plasma discharge partial cut, removes selectively and is deposited on neighboring liquid crystal in the both alignment layers part needing to scribble binding agent, and the electrode terminal section being connected with external drive circuit the both alignment layers part piled up.
2. according to the manufacture method of liquid crystal indicator described in claim 1, it is characterised in that: optionally remove method as one, utilize atmospheric pressure state generation continuous print plasma, irradiate with nozzle or slit and on substrate, remove above-mentioned desired part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610427538.XA CN105911735A (en) | 2016-06-15 | 2016-06-15 | Manufacturing method of liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610427538.XA CN105911735A (en) | 2016-06-15 | 2016-06-15 | Manufacturing method of liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105911735A true CN105911735A (en) | 2016-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610427538.XA Withdrawn CN105911735A (en) | 2016-06-15 | 2016-06-15 | Manufacturing method of liquid crystal display device |
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| CN (1) | CN105911735A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107272266A (en) * | 2017-07-28 | 2017-10-20 | 京东方科技集团股份有限公司 | A kind of alignment film coating method and orientation membrane preparation device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1442737A (en) * | 2003-04-14 | 2003-09-17 | 饭沼精密机械(苏州)有限公司 | Manufacturing method of liquid crystal display device |
| CN103728780A (en) * | 2013-12-31 | 2014-04-16 | 深圳市华星光电技术有限公司 | Liquid crystal display device and manufacturing method thereof |
| CN103728783A (en) * | 2013-12-31 | 2014-04-16 | 深圳市华星光电技术有限公司 | Alignment method for liquid crystal display panel and corresponding liquid crystal display device |
-
2016
- 2016-06-15 CN CN201610427538.XA patent/CN105911735A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1442737A (en) * | 2003-04-14 | 2003-09-17 | 饭沼精密机械(苏州)有限公司 | Manufacturing method of liquid crystal display device |
| CN103728780A (en) * | 2013-12-31 | 2014-04-16 | 深圳市华星光电技术有限公司 | Liquid crystal display device and manufacturing method thereof |
| CN103728783A (en) * | 2013-12-31 | 2014-04-16 | 深圳市华星光电技术有限公司 | Alignment method for liquid crystal display panel and corresponding liquid crystal display device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107272266A (en) * | 2017-07-28 | 2017-10-20 | 京东方科技集团股份有限公司 | A kind of alignment film coating method and orientation membrane preparation device |
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Application publication date: 20160831 |