CN109796761A - Display screen component, preparation method and display terminal - Google Patents
Display screen component, preparation method and display terminal Download PDFInfo
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- CN109796761A CN109796761A CN201811595493.2A CN201811595493A CN109796761A CN 109796761 A CN109796761 A CN 109796761A CN 201811595493 A CN201811595493 A CN 201811595493A CN 109796761 A CN109796761 A CN 109796761A
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Abstract
This application involves screen processing technique fields, in particular to a kind of display screen component, the preparation method of display screen component and display terminal.Display screen component includes display screen, the first polyimide film and the second polyimide film, first polyimide film includes the raw material components of following parts by weight: 80-130 parts of polyimide resin micro mist, 1-3 parts of EDTA Chelated Manganese, 3-6 parts of silicon nitride powder, 10-15 parts and bentonite 7-15 parts of curing agent；Second polyimide film is covered on the surface of first polyimide film, is made by flexible.It is combined in the application using two layers of polyimide film, the instead front glass cover board combination that adds protective film.Solve in bent wearing product that glass cover-plate is easy the technical issues of splitting in display screen, PI film is a kind of bent plastic film material, mechanical performance is fine, also has the characteristics such as low temperature resistant, the coefficient of expansion is low, fire-retardant and good biocompatibility, meets the performance of substitution glass cover-plate.
Description
Technical field
This application involves screen processing technique fields, in particular to the system of a kind of display screen component, display screen component
Preparation Method and display terminal.
Background technique
The display screen surface of bent wearing class consumption electronic product is typically all to be made of glass cover-plate and protective film,
Middle protective film is ordinarily selected to PI film, i.e. polyimide film；Protective film primarily serves the effect of protection glass cover-plate, is being rushed
It hitting in the case that glass cover-plate split, glass cover-plate can be adhered on protective film, and glass will not hurt people, but due to can
Need glass cover-plate that can be bent in bending wearing class product, glass selection cannot be too thick, causes strength of glass not high, works as glass
When encountering stronger impact, glass just be will crack.Therefore, it is necessary to find a kind of substitute of glass cover-plate, make it have
It certain intensity and can bend.
Summary of the invention
In order to solve the above-mentioned technical problem, the favorable substitutes for obtaining glass cover-plate in a kind of screen assembly, make it have
Certain intensity and and bending performance, this application provides a kind of following technical solutions.
To achieve the goals above, according to the one aspect of the technical program, the technical program provides a kind of display screen
Component.
According to a kind of display screen component of the embodiment of the present application comprising:
Display screen；
First polyimide film is covered on the surface of the display screen, and first polyimide film includes following
The raw material components of parts by weight: 80-130 parts of polyimide resin micro mist, 1-3 parts of EDTA Chelated Manganese, 3-6 parts of silicon nitride powder,
10-15 parts and bentonite 7-15 parts of curing agent；
Second polyimide film is covered on the surface of first polyimide film, by flexible system
?.
Further, first polyimide film includes the raw material components of following parts by weight: polyimide resin is micro-
90-120 parts of powder, 1.5-2.5 parts of EDTA Chelated Manganese, 4-5 parts of silicon nitride powder, 11-14 parts and bentonite 9-12 parts of curing agent.
Further, first polyimide film includes the raw material components of following parts by weight: polyimide resin is micro-
100 parts of powder, 2 parts of EDTA Chelated Manganese, 4.5 parts of silicon nitride powder, 12 parts and 10 parts of bentonite of curing agent.
Further, the curing agent is selected from dioctyl phthalate, dibutyl phthalate, methyl-etherified amino tree
Rouge, 2,4- diamino -3,5- diethyl-toluene, 2,6- diamino -3,5- diethyl-toluene and combinations thereof.
Further, first polyimide film is pasted on the surface of the display screen by adhesive layer.
To achieve the goals above, according to the second aspect of the technical program, the technical program additionally provides a kind of aobvious
The preparation method of display screen component is used to prepare above-mentioned display screen component provided by the present application.
According to the preparation method of the display screen component of the embodiment of the present application comprising following steps:
It prepares the first polyimide film: weighing raw material in parts by weight, each component is gradually heated to 80- after mixing
95 DEG C, it is then stirred continuously lower heat preservation 0.5-1.5h again, film layer is prepared using the tape casting, then, traction cooling through double roller, volume
Take obtained first polyimide film；
First polyimide film is covered on to the surface of display screen；
It prepares the second polyimide film: dianhydride and diamine monomer being added in polar organic solvent, under the action of catalyst
Reaction generates polyimide solution；In polyimide solution obtained, add emulsifier and water, electro-deposition use is quickly obtained after stirring
Polyimides lotion；Using polyimides lotion obtained by flexible, deposition obtains polyimide film, deposition voltage
For 150-220V, sedimentation time 10-25min；
Second polyimide film is covered on to the surface of first polyimide film.
Further, the dianhydride monomer is selected from the equal tetracarboxylic dianhydride of benzene, 3,3', 4,4'- biphenyltetracarboxylic dianhydrides, 2,
2'- is bis--(3,4- dicarboxylic acids anhydride group benzene) hexafluoropropane, bis- (3,4- dicarboxylic anhydride benzene) sulfones, 3,3', 4,4'- diphenyl sulfone tetracarboxylic acid
Acid dianhydride,-two trimellitic anhydride of ethylene glycol, 1,3- dihydro -1,3- dioxy -5- isobenzofuran carboxylic acid Asia phenyl ester, ethylene glycol are double
(trihemellitic acid acid anhydride), at least one of 1,2,3,4- butane tetracarboxylic acid dianhydride, 1,2,3,4- pentamethylene tetracarboxylic dianhydrides.
Further, the diamine monomer is selected from p-phenylenediamine, m-phenylene diamine (MPD), 2,2'- bis- (4- aminophenyl) propane, 4,
4'- oxygen diphenylamines, 4,4'- diamino diphenyl sulfone, 9,9- bis- (4- amino -3- aminomethyl phenyl) fluorenes, 4,4'- diamino-diphenyl
At least one of ether and norbornane dimethylamine.
Further, the polar organic solvent is selected from n,N-Dimethylformamide, n,N-dimethylacetamide, dimethyl
At least one of sulfoxide, N-Methyl pyrrolidone, sulfolane, 1,4- dioxane, metacresol, tetrahydrofuran.
Further, the catalyst is selected from triethylamine, dimethyl lauryl amine, aminobenzoic acid, heterocycle tertiary amine and rouge
Aromatic series tertiary amine.
To achieve the goals above, in terms of according to the third of the technical program, the technical program additionally provides a kind of aobvious
Show terminal.
It include above-mentioned display screen component provided by the present application according to the display terminal of the embodiment of the present application.
It is combined in the application using two layers of polyimide film, the instead front glass cover board combination that adds protective film.
It solves in bent wearing product glass cover-plate in display screen and is easy the technical issues of splitting, PI film is a kind of bent plastics
Membrane material, mechanical performance are fine: tensile strength, elasticity modulus, humidity resistance, radiation hardness are all good, also have the low temperature resistant, coefficient of expansion
The characteristics such as low, fire-retardant and good biocompatibility meet the performance of substitution glass cover-plate.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present application, so that the application's is other
Feature, objects and advantages become more apparent upon.The illustrative examples attached drawing and its explanation of the application is for explaining the application, not
Constitute the improper restriction to the application.In the accompanying drawings:
Fig. 1 shows schematically a kind of structural reference figure of screen assembly in the prior art；
Fig. 2 shows schematically a kind of structural reference figure of screen assembly provided by the embodiments of the present application.
In figure:
1, display screen；2, the first polyimide film；3, the second polyimide film；2', glass cover-plate；3', protective film；4',
OCA layers.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
The embodiment of the application a part, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people
Member's every other embodiment obtained without making creative work, all should belong to the model of the application protection
It encloses.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to embodiments herein described herein.In addition, term " includes " and " tool
Have " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing a series of steps or units
Process, method, system, product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include without clear
Other step or units listing to Chu or intrinsic for these process, methods, product or equipment.
In this application, term " on ", "lower", "inner", " in ", "outside", the orientation of the instructions such as "front", "rear" or position close
System is to be based on the orientation or positional relationship shown in the drawings.These terms are primarily to better describe the application and its implementation
Example, is not intended to limit indicated device, element or component must have particular orientation, or carries out structure with particular orientation
It makes and operates.
Also, above-mentioned part term is other than it can be used to indicate that orientation or positional relationship, it is also possible to for indicating it
His meaning, such as term " on " also are likely used for indicating certain relations of dependence or connection relationship in some cases.For ability
For the those of ordinary skill of domain, the concrete meaning of these terms in this application can be understood as the case may be.
In addition, term " setting ", " connection ", " fixation " shall be understood in a broad sense.For example, " connection " may be a fixed connection,
It is detachably connected or monolithic construction；It can be mechanical connection, or electrical connection；It can be directly connected, or pass through centre
Medium is indirectly connected, or is two connections internal between device, element or component.For ordinary skill
For personnel, the concrete meaning of above-mentioned term in this application can be understood as the case may be.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.
The display screen surface of bent wearing class consumption electronic product in the prior art be typically all by glass cover-plate and
Protective film composition, shown in structure chart 1, display screen component include the display screen 1 set gradually, 2', OCA layers of 4' of glass cover-plate and
Protective film 3', wherein protective film 3' is ordinarily selected to PI film, i.e. polyimide film；Protective film primarily serves protection glass cover-plate 2'
Effect, in the case where having been split by impact glass cover-plate 2', glass cover-plate 2' can be adhered on protective film 3', and glass is not yet
People can be hurt.
But due to needing glass cover-plate 2' that can be bent in bent wearing class product, glass selection cannot be too thick,
Cause strength of glass not high, when glass encounters stronger impact, glass just be will crack.It is, thus, sought for a kind of glass
The substitute of cover board 2' makes it have certain intensity and can bend.
To solve the above-mentioned problems, as shown in Fig. 2, the embodiment of the present application provides a kind of display screen component comprising aobvious
Display screen 1, the first polyimide film 2 and the second polyimide film 3, wherein the first polyimide film 2 is covered on the surface of display screen 1
On, the second polyimide film 3 is covered on the surface of the first polyimide film 2.
In order to improve the mechanical strength of the first polyimide film 2, allows to perfect substitution glass cover-plate 2', gather to first
The material composition and preparation method of acid imide film 2 propose larger improvement, and specific first polyimide film 2 includes following heavy
The raw material components of amount number: 80-130 parts of polyimide resin micro mist, 1-3 parts of EDTA Chelated Manganese, 3-6 parts of silicon nitride powder, Gu
10-15 parts and bentonite 7-15 parts of agent.Other than with good mechanical performance, which also has resistance to
The characteristics such as low temperature, the coefficient of expansion be low, fire-retardant and good biocompatibility, can satisfy the performance of substitution glass cover-plate 2'；
And its radius bend is also smaller than the radius bend of glass cover-plate 2.And polyimide can carry glue, so first
OCA layers are not needed between polyimide film 2 and the second polyimide film 3 to be bonded.
The application is described in detail below with reference to specific embodiment.
Embodiment 1
A kind of display screen component, including display screen 1, the first polyimide film 2 and the second polyimide film 3, wherein first
Polyimide film 2 is pasted on the surface of display screen 1 by adhesive layer, and the second polyimide film 3 is covered on the first polyimides
On the surface of film 2, it is made by flexible.First polyimide film 2 includes the raw material components of following parts by weight: poly-
80 parts of imide resin micro mist, 1 part of EDTA Chelated Manganese, 3 parts of silicon nitride powder, 10 parts and 7 parts of bentonite of curing agent.Wherein solidify
Agent choosing is then dioctyl phthalate.Wherein polyimide resin micro mist is selected as poly- (pyromellitic acid dianhydride/4,4 oxygroups two
Aniline/nonyl phenol ethoxylate phosphate) copolymer.
Display screen component in the present embodiment the preparation method is as follows:
(1) it prepares the first polyimide film: weighing raw material in parts by weight, each component is gradually heated to after mixing
80 DEG C, be then stirred continuously lower heat preservation 1.5h again, film layer be prepared using the tape casting, then it is cooling through double roller, draw, the system of batching
Obtain the first polyimide film；
(2) the first polyimide film is covered on to the surface of display screen；
(3) it prepares the second polyimide film: dianhydride and diamine monomer being added in polar organic solvent, in catalyst action
Lower reaction generates polyimide solution；In polyimide solution obtained, add emulsifier and water, quickly obtains electro-deposition after stirring
With polyimides lotion；Using polyimides lotion obtained by flexible, deposition obtains polyimide film, deposition electricity
Pressure is 150V, sedimentation time 25min；Dianhydride monomer choosing is then the equal tetracarboxylic dianhydride of benzene, and diamine monomer choosing is then the bis- (4- of 9,9-
Amino -3- aminomethyl phenyl) fluorenes.Polar organic solvent choosing is then n,N-Dimethylformamide, and catalyst choosing is then triethylamine.
(4) second polyimide film is covered on to the surface of first polyimide film.
Embodiment 2
A kind of display screen component, including display screen 1, the first polyimide film 2 and the second polyimide film 3, wherein first
Polyimide film 2 is pasted on the surface of display screen 1 by adhesive layer, and the second polyimide film 3 is covered on the first polyimides
On the surface of film 2, it is made by flexible.First polyimide film 2 includes the raw material components of following parts by weight: poly-
130 parts of imide resin micro mist, 3 parts of EDTA Chelated Manganese, 6 parts of silicon nitride powder, 15 parts and 15 parts of bentonite of curing agent.It is wherein solid
Agent choosing is then the combination of 2,4- diamino -3,5- diethyl-toluene and 2,6- diamino -3,5- diethyl-toluene.Wherein gather
Imide resin micro mist is selected as poly- (biphenyltetracarboxylic dianhydride/4,4' oxygroup diphenylamines/nonyl phenol ethoxylate phosphoric acid
Ester) copolymer.
Display screen component in the present embodiment the preparation method is as follows:
(1) it prepares the first polyimide film: weighing raw material in parts by weight, each component is gradually heated to after mixing
95 DEG C, be then stirred continuously lower heat preservation 0.5h again, film layer be prepared using the tape casting, then it is cooling through double roller, draw, the system of batching
Obtain the first polyimide film；
(2) the first polyimide film is covered on to the surface of display screen；
(3) it prepares the second polyimide film: dianhydride and diamine monomer being added in polar organic solvent, in catalyst action
Lower reaction generates polyimide solution；In polyimide solution obtained, add emulsifier and water, quickly obtains electro-deposition after stirring
With polyimides lotion；Using polyimides lotion obtained by flexible, deposition obtains polyimide film, deposition electricity
Pressure is 220V, sedimentation time 10min；Dianhydride monomer choosing is then 3,3', 4,4'- biphenyltetracarboxylic dianhydride and bis- (3,4- dicarboxyls
Acid anhydrides benzene) sulfone.Diamine monomer choosing is then m-phenylene diamine (MPD).Polar organic solvent choosing is then N-Methyl pyrrolidone.Catalyst selects then
For aminobenzoic acid.
(4) second polyimide film is covered on to the surface of first polyimide film.
Embodiment 3
A kind of display screen component, including display screen 1, the first polyimide film 2 and the second polyimide film 3, wherein first
Polyimide film 2 is pasted on the surface of display screen 1 by adhesive layer, and the second polyimide film 3 is covered on the first polyimides
On the surface of film 2, it is made by flexible.First polyimide film 2 includes the raw material components of following parts by weight: poly-
120 parts of imide resin micro mist, 2.5 parts of EDTA Chelated Manganese, 5 parts of silicon nitride powder, 14 parts and 12 parts of bentonite of curing agent.Wherein
Curing agent choosing is then Amino resin.Wherein polyimide resin micro mist be selected as it is poly- (pyromellitic acid dianhydride/phenylenediamine/
Nonyl phenol ethoxylate phosphate) copolymer.
Display screen component in the present embodiment the preparation method is as follows:
(1) it prepares the first polyimide film: weighing raw material in parts by weight, each component is gradually heated to after mixing
85 DEG C, be then stirred continuously lower heat preservation 0.7h again, film layer be prepared using the tape casting, then it is cooling through double roller, draw, the system of batching
Obtain the first polyimide film；
(2) first polyimide film is covered on to the surface of display screen；
(3) it prepares the second polyimide film: dianhydride and diamine monomer being added in polar organic solvent, in catalyst action
Lower reaction generates polyimide solution；In polyimide solution obtained, add emulsifier and water, quickly obtains electro-deposition after stirring
With polyimides lotion；Using polyimides lotion obtained by flexible, deposition obtains polyimide film, deposition electricity
Pressure is 180V, sedimentation time 20min；Dianhydride monomer choosing is then bis- (trihemellitic acid acid anhydride) for ethylene glycol.Diamine monomer choosing is then 4,
4'- diamino-diphenyl ether.Polar organic solvent choosing is then tetrahydrofuran.Catalyst choosing is then heterocycle tertiary amine.
(4) second polyimide film is covered on to the surface of first polyimide film.
Embodiment 4
A kind of display screen component, including display screen 1, the first polyimide film 2 and the second polyimide film 3, wherein first
Polyimide film 2 is pasted on the surface of display screen 1 by adhesive layer, and the second polyimide film 3 is covered on the first polyimides
On the surface of film 2, it is made by flexible.First polyimide film 2 includes the raw material components of following parts by weight: poly-
90 parts of imide resin micro mist, 1.5 parts of EDTA Chelated Manganese, 4 parts of silicon nitride powder, 11 parts and 9 parts of bentonite of curing agent.It is wherein solid
Agent choosing is then dibutyl phthalate.Wherein polyimide resin micro mist is selected as poly- (biphenyltetracarboxylic dianhydride/benzene two
Amine/nonyl phenol ethoxylate phosphate) copolymer.
Display screen component in the present embodiment the preparation method is as follows:
(1) it prepares the first polyimide film: weighing raw material in parts by weight, each component is gradually heated to after mixing
90 DEG C, be then stirred continuously lower heat preservation 1h again, film layer be prepared using the tape casting, then it is cooling through double roller, draw, batch it is obtained
First polyimide film；
(2) first polyimide film is covered on to the surface of display screen；
(3) it prepares the second polyimide film: dianhydride and diamine monomer being added in polar organic solvent, in catalyst action
Lower reaction generates polyimide solution；In polyimide solution obtained, add emulsifier and water, quickly obtains electro-deposition after stirring
With polyimides lotion；Using polyimides lotion obtained by flexible, deposition obtains polyimide film, deposition electricity
Pressure is 200V, sedimentation time 15min；Dianhydride monomer choosing is then 1,3- dihydro -1,3- dioxy -5- isobenzofuran carboxylic acid Asia benzene
Ester.Diamine monomer choosing is then in 4,4'- oxygen diphenylamines and norbornane dimethylamine.Polar organic solvent choosing is then N- methylpyrrole
Alkanone.Catalyst choosing is then rouge aromatic series tertiary amine.
(4) second polyimide film is covered on to the surface of first polyimide film.
Embodiment 5
A kind of display screen component, including display screen 1, the first polyimide film 2 and the second polyimide film 3, wherein first
Polyimide film 2 is pasted on the surface of display screen 1 by adhesive layer, and the second polyimide film 3 is covered on the first polyimides
On the surface of film 2, it is made by flexible.First polyimide film 2 includes the raw material components of following parts by weight: poly-
100 parts of imide resin micro mist, 2 parts of EDTA Chelated Manganese, 4.5 parts of silicon nitride powder, 12 parts and 10 parts of bentonite of curing agent.Wherein
Curing agent choosing is then 2,6- diamino -3,5- diethyl-toluene.Wherein polyimide resin micro mist is selected as poly- (biphenyl tetracarboxylic acid
Acid dianhydride/4,4' oxygroup diphenylamines/nonyl phenol ethoxylate phosphate) copolymer and poly- (biphenyltetracarboxylic dianhydride/benzene two
Amine/nonyl phenol ethoxylate phosphate) copolymer.
Display screen component in the present embodiment the preparation method is as follows:
(1) it prepares the first polyimide film: weighing raw material in parts by weight, each component is gradually heated to after mixing
88 DEG C, be then stirred continuously lower heat preservation 1.2h again, film layer be prepared using the tape casting, then it is cooling through double roller, draw, the system of batching
Obtain the first polyimide film；
(2) first polyimide film is covered on to the surface of display screen；
(3) it prepares the second polyimide film: dianhydride and diamine monomer being added in polar organic solvent, in catalyst action
Lower reaction generates polyimide solution；In polyimide solution obtained, add emulsifier and water, quickly obtains electro-deposition after stirring
With polyimides lotion；Using polyimides lotion obtained by flexible, deposition obtains polyimide film, deposition electricity
Pressure is 200V, sedimentation time 13min；Dianhydride monomer choosing is then ethylene glycol bis- (trihemellitic acid acid anhydrides) and 1,2,3,4- butane tetracarboxylic
Acid dianhydride.Diamine monomer choosing is then p-phenylenediamine and 2,2'- bis- (4- aminophenyl) propane.Polar organic solvent choosing be then between first
Phenol.Catalyst choosing is then dimethyl lauryl amine.
(4) second polyimide film is covered on to the surface of first polyimide film.
Embodiment 6
A kind of display screen component, including display screen 1, the first polyimide film 2 and the second polyimide film 3, wherein first
Polyimide film 2 is pasted on the surface of display screen 1 by adhesive layer, and the second polyimide film 3 is covered on the first polyimides
On the surface of film 2, it is made by flexible.First polyimide film 2 includes the raw material components of following parts by weight: poly-
110 parts of imide resin micro mist, 2.3 parts of EDTA Chelated Manganese, 3.5 parts of silicon nitride powder, 11 parts and 10 parts of bentonite of curing agent.Its
Middle curing agent choosing is then 2,4- diamino -3,5- diethyl-toluene.Wherein polyimide resin micro mist is selected as poly- (equal benzene four
Acid dianhydride/4,4 oxygroup diphenylamines/nonyl phenol ethoxylate phosphate) copolymer and it is poly- (pyromellitic acid dianhydride/phenylenediamine/
Nonyl phenol ethoxylate phosphate) copolymer.
Display screen component in the present embodiment the preparation method is as follows:
(1) it prepares the first polyimide film: weighing raw material in parts by weight, each component is gradually heated to after mixing
83 DEG C, be then stirred continuously lower heat preservation 1.1h again, film layer be prepared using the tape casting, then it is cooling through double roller, draw, the system of batching
Obtain the first polyimide film；
(2) first polyimide film is covered on to the surface of display screen；
(3) it prepares the second polyimide film: dianhydride and diamine monomer being added in polar organic solvent, in catalyst action
Lower reaction generates polyimide solution；In polyimide solution obtained, add emulsifier and water, quickly obtains electro-deposition after stirring
With polyimides lotion；Using polyimides lotion obtained by flexible, deposition obtains polyimide film, deposition electricity
Pressure is 180V, sedimentation time 13min；Dianhydride monomer choosing is then 1,2,3,4- pentamethylene tetracarboxylic dianhydride.Diamine monomer selects then
For to 2,2'- bis- (4- aminophenyl) propane, 4,4'- oxygen diphenylamines and 4,4'- diamino-diphenyl ether.Polar organic solvent choosing
It is then N,N-dimethylformamide.Catalyst choosing is then triethylamine.
(4) second polyimide film is covered on to the surface of first polyimide film.
Embodiment 7
A kind of display terminal, the display screen component provided including any one of the above embodiment of the present invention 1-6.Therefore having should
The display terminal of display screen component also has all technical effects of above-mentioned display screen component, and this is no longer going to repeat them.Root
According to the present embodiment display terminal can for mobile phone, tablet computer or electronic reader etc., other compositions of display terminal with
And operation be for those of ordinary skill in the art it is known, be not described in detail herein.
Section Example is described in a progressive manner in this specification, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The above is only a specific embodiment of the invention, make skilled artisans appreciate that or realizing of the invention.It is right
A variety of modifications of these embodiments will be apparent to one skilled in the art, general original as defined herein
Reason can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it originally will not be limited
It is formed on the embodiments shown herein, and is to fit to consistent with applied principle herein and features of novelty widest
Range.
Claims (11)
1. a kind of display screen component characterized by comprising
Display screen (1)；
First polyimide film (2), is covered on the surface of the display screen (1), and first polyimide film (2) includes
The raw material components of following parts by weight: 80-130 parts of polyimide resin micro mist, 1-3 parts of EDTA Chelated Manganese, silicon nitride powder 3-6
Part, 10-15 parts and bentonite 7-15 parts of curing agent；
Second polyimide film (3) is covered on the surface of first polyimide film (2), passes through flexible
It is made.
2. display screen component according to claim 1, which is characterized in that first polyimide film (2) includes following
The raw material components of parts by weight: 90-120 parts of polyimide resin micro mist, 1.5-2.5 parts of EDTA Chelated Manganese, silicon nitride powder 4-5
Part, 11-14 parts and bentonite 9-12 parts of curing agent.
3. display screen component according to claim 1, which is characterized in that first polyimide film (2) includes following
The raw material components of parts by weight: 100 parts of polyimide resin micro mist, 2 parts of EDTA Chelated Manganese, 4.5 parts of silicon nitride powder, curing agent
12 parts and 10 parts of bentonite.
4. display screen component according to claim 1, which is characterized in that it is pungent that the curing agent is selected from phthalic acid two
Ester, dibutyl phthalate, Amino resin, 2,4- diamino -3,5- diethyl-toluene, 2,6- diamino -3,5-
Diethyl-toluene and combinations thereof.
5. display screen component according to claim 1, which is characterized in that the first polyimides (2) film passes through gluing
Layer is pasted on the surface of the display screen (1).
6. the preparation method of the described in any item display screen components of claim 1-5, which comprises the following steps:
It prepares the first polyimide film: weighing raw material in parts by weight, each component is gradually heated to 80-95 after mixing
DEG C, be then stirred continuously lower heat preservation 0.5-1.5h again, film layer be prepared using the tape casting, then it is cooling through double roller, draw, batch
The first polyimide film is made；
First polyimide film is covered on to the surface of display screen；
It prepares the second polyimide film: dianhydride and diamine monomer being added in polar organic solvent, reacted under the action of catalyst
Generate polyimide solution；In polyimide solution obtained, add emulsifier and water, quickly obtains electro-deposition polyamides after stirring
Imines lotion；Using polyimides lotion obtained by flexible, deposition obtains polyimide film, and deposition voltage is
150-220V, sedimentation time 10-25min；
Second polyimide film is covered on to the surface of first polyimide film.
7. the preparation method of display screen component according to claim 6, which is characterized in that it is equal that the dianhydride monomer is selected from benzene
Tetracarboxylic dianhydride, 3,3', 4,4'- biphenyltetracarboxylic dianhydride, 2,2'- be bis--(3,4- dicarboxylic acids anhydride group benzene) hexafluoropropane, it is bis- (3,
4- dicarboxylic anhydride benzene) sulfone, 3,3', 4,4'- diphenyl sulfone tetracarboxylic dianhydride,-two trimellitic anhydride of ethylene glycol, dihydro -1 1,3-,
3- dioxy -5- isobenzofuran carboxylic acid Asia phenyl ester, ethylene glycol are bis- (trihemellitic acid acid anhydride), 1,2,3,4- butane tetracarboxylic acid dianhydride, 1,
At least one of 2,3,4- pentamethylene tetracarboxylic dianhydride.
8. the preparation method of display screen component according to claim 6, which is characterized in that the diamine monomer is selected to benzene
Diamines, m-phenylene diamine (MPD), 2,2'- bis- (4- aminophenyl) propane, 4,4'- oxygen diphenylamines, 4,4'- diamino diphenyl sulfone, 9,9-
At least one of bis- (4- amino -3- aminomethyl phenyl) fluorenes, 4,4'- diamino-diphenyl ether and norbornane dimethylamine.
9. the preparation method of display screen component according to claim 6, which is characterized in that the polar organic solvent is selected from
N,N-dimethylformamide, DMAC N,N' dimethyl acetamide, dimethyl sulfoxide, N-Methyl pyrrolidone, sulfolane, 1,4- dioxy six
At least one of ring, metacresol, tetrahydrofuran.
10. the preparation method of display screen component according to claim 6, which is characterized in that the catalyst is selected from three second
Amine, dimethyl lauryl amine, aminobenzoic acid, heterocycle tertiary amine and rouge aromatic series tertiary amine.
11. a kind of display terminal, which is characterized in that including the described in any item display screen components of claim 1-5.
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