CN103364989A - Manufacturing method of color filter substrate - Google Patents
Manufacturing method of color filter substrate Download PDFInfo
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- CN103364989A CN103364989A CN2013101909271A CN201310190927A CN103364989A CN 103364989 A CN103364989 A CN 103364989A CN 2013101909271 A CN2013101909271 A CN 2013101909271A CN 201310190927 A CN201310190927 A CN 201310190927A CN 103364989 A CN103364989 A CN 103364989A
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- Prior art keywords
- optical filtering
- colored optical
- potpourri
- filtering substrates
- manufacture method
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Abstract
The invention discloses a manufacturing method of a color filter substrate, which comprises the following steps that the substrate is provided; a color filter layer and a shading layer are configured on the substrate, and coated with a mixture comprising an alcohol monomer, a photosensitizer and a photoinitiator; and the mixture is subjected to a linear polarization irradiation procedure to form a covering layer with a polarization effect.
Description
Technical field
The invention relates to a kind of manufacture method of colored optical filtering substrates, and particularly relevant for a kind of manufacture method with colored optical filtering substrates of polarisation effect.
Background technology
Generally speaking, liquid crystal display comprises and can comprise the two-layer Polarizer that is disposed at liquid crystal cell (liquid crystal cell) both sides.Polarizer can allow the light of specific direction pass through, to reach the Presentation Function of liquid crystal display.Polarizer mainly comprises layer of polyethylene alcohol (polyvinyl alcohol, PVA) film and two-layer triacetyl cellulose (cellulose triacetate, TAC) film, wherein the TAC film can cover one deck glue material, and the PVA film after will stretching from the both sides of PVA film is fitted fixing, uses the extended state of keeping the PVA film.Certainly, Polarizer also can also comprise compensate film according to circumstances.
Yet when Polarizer was in hot environment, the glue material between PVA film and the TAC film may have softening situation, caused the fixing ability of fitting to descend.Therefore the PVA film may produce rebound phenomenon and lose the polarisation effect.In addition, cause distortion owing to the PVA film absorbs aqueous vapor easily, so Polarizer must be stored under the dry environment.In addition, if Polarizer for a long time uses, the PVA film is in extended state and lost efficacy after causing stress fatigue for a long time, so the impact that is subject to many limitations of the life-span of Polarizer.
Summary of the invention
The invention provides a kind of manufacture method of colored optical filtering substrates, it has the overlayer of protective effect and polarisation effect concurrently by the linear polarization irradiation program tectal combination of materials of arranging in pairs or groups with formation.
The present invention proposes a kind of manufacture method of colored optical filtering substrates, and it may further comprise the steps.At first, provide substrate.Dispose chromatic filter layer and light shield layer on the substrate.Then, coating mixture on chromatic filter layer and light shield layer.Potpourri comprises alcohols monomer, photosensitizer and light initiator.Come again, said mixture is carried out linear polarization irradiation program, so that potpourri forms the overlayer with polarisation effect.
Based on above-mentioned; the method for making of colored optical filtering substrates of the present invention can form the overlayer that has simultaneously defencive function and polarisation effect; and; when colored optical filtering substrates of the present invention is applied to make liquid crystal display; can reduce the use of one deck Polarizer; with the thickness that reduces liquid crystal display and simplify its production process, and do not reduce because the life-span of Polarizer is not good and may not cause the bad probability of liquid crystal display display quality.
For above-mentioned feature and advantage of the present invention can be become apparent, embodiment cited below particularly, and cooperate appended graphic being described in detail below.
Description of drawings
Figure 1A to Fig. 1 C illustrates the manufacturing process synoptic diagram of a kind of colored optical filtering substrates of one embodiment of the invention;
Fig. 2 is the diagrammatic cross-section of the liquid crystal display of one embodiment of the invention.
[primary clustering symbol description]
10: liquid crystal display
100: colored optical filtering substrates
102: substrate
104: chromatic filter layer
104a: color filter patterns
106: light shield layer
108: overlayer
108a: potpourri
200: active assembly array substrate
202: substrate
204: the first electrodes
205: the first insulation courses
206: the second electrodes
207: the second insulation courses
300: liquid crystal layer
302: liquid crystal molecule
400: backlight module
500: Polarizer
L: linear polarization irradiation program.
Embodiment
Figure 1A to Fig. 1 C illustrates the manufacturing process synoptic diagram of a kind of colored optical filtering substrates of one embodiment of the invention.Please refer to Figure 1A, at first, provide substrate 102.At this, chromatic filter layer 104 and light shield layer 106 have been disposed on the substrate 102.Chromatic filter layer 104 for example is to comprise a plurality of color filter patterns 104a, and wherein color filter patterns 104a comprises red filter pattern, blue filter pattern and green filter pattern.Certainly, the invention is not restricted to this.In other embodiments, the color category of color filter patterns 104a and quantity can adjust according to design requirement.
Then, please refer to Figure 1B, coating mixture 108a on chromatic filter layer 104 and light shield layer 106.In the present embodiment, the coating process of potpourri 108a for example is rotary coating (spin-coating), slot coated (slit coating) or other coating process that is fit to.Potpourri 108a mainly comprises alcohols monomer, photosensitizer and light initiator, if wherein calculate take the general assembly (TW) of potpourri 108a as 100 weight portions, the alcohols monomer accounts for 75 to 99 weight portions, and photosensitizer accounts for 0.1 to 20 weight portion, and the light initiator accounts for 0.001 to 5 weight portion.Certainly, the invention is not restricted to this, in other embodiments, if calculate take the general assembly (TW) of potpourri 108a as 100 weight portions, the alcohols monomer accounts for 93 to 99.8 weight portions, and photosensitizer accounts for 0.1 to 5 weight portion, and the light initiator accounts for 0.1 to 2 weight portion.
The alcohols monomer for example is vinyl alcohol (vinyl alcohol).Photosensitizer for example is the thioxanthone compound (TXI) of ethoxycarbonyl and potpourri or the dichromate dyestuff of the morpholone (TPMK) of methyl mercapto.The thioxanthone compound (TXI) of ethoxycarbonyl for example is 2,4-diethyl thioxanthone.The structural formula of 2,4-diethyl thioxanthone is as follows:
The dichromate dyestuff for example is to contain trivalent chromium (Cr
3+) or pentavalent chromium (Cr
5+) the dichromate dyestuff.The light initiator for example is that benzophenone, dimethoxybenzoin (DMPA), chloro sulphur dye green onion ketone (CTX), diethoxy acetophenone (DEAP), hydroxyl dimethyl acetophenone (HAP Darocure 1173), two dichloro-benzenes acyl group propyl phenyl phosphorous oxide (BDPP), trimethylbenzene formyl diphenyl phosphate oxidation (TPO), the luxuriant derivant of titanium (Irgacure 784).In one embodiment, the light initiator for example is iodobenzene (Iodobenzene).
In the present embodiment, potpourri 108a also comprises side-chain hydrogenated thing.If calculate take the general assembly (TW) of potpourri 108a as 100 weight portions, the content of side-chain hydrogenated thing accounts for 5 to 80 weight portions.The structure example of side-chain hydrogenated thing is RH in this way, and wherein R for example is
Or
In addition, potpourri 108a can more comprise other composition, for example is resin, solvent, adjuvant.Resin can be used as binder so that stickiness to a certain degree to be provided.Solvent can provide the space of interreaction between each composition of potpourri 108a.Adjuvant is then looked the characteristic demand and is added, and for example, can add anti-decomposition agent to reduce the probability that cracking occurs in the program of carrying out next step (for example irradiation program) before at potpourri 108a.The present invention does not limit kind and the content of resin, solvent and adjuvant, and affiliated field has knows that usually the knowledgeable can adjust according to the characteristic demand ratio of each composition.
After potpourri 108a coating is finished, can carry out baking program (not illustrating) to potpourri 108a first according to circumstances, with precuring potpourri 108a.The temperature of baking program for example is 80 ℃ to 120 ℃, and the time of baking degree is 3 to 10 minutes.
Then, please refer to Fig. 1 C, carry out irradiation program L, wherein the employed light of irradiation program L for example is linearly polarized photon and for example is ultraviolet light.After the irradiation program was finished, potpourri 108a can form the overlayer 108 with polarisation effect.In addition, overlayer 108 also has high light transmittance, good insulativity, good metal electrode tack and good hardness.
Specifically; after potpourri 108a is shone by light; alcohols monomer among the potpourri 108a can be because the impact of photosensitizer and light initiator; in course of reaction, form the polymkeric substance of arranging along linear polarization light direction; thereby form the overlayer 108 with inclined to one side optical activity, also therefore this overlayer 108 has defencive function and polarisation effect simultaneously concurrently.Described defencive function refers to that overlayer 108 has certain hardness with protection colored optical filtering substrates 100, and the situation that is subject to scratch with the chromatic filter layer 104 on the minimizing colored optical filtering substrates 100 and light shield layer 106 occurs.And the function that the polarisation effect will make the colored optical filtering substrates 100 of finishing making have allows the light of specific direction pass through.
Furthermore, photosensitizer for example is the dichromate dyestuff, and the alcohols monomer for example is vinyl alcohol (C
2H
3OH), the light initiator for example is iodobenzene (Iodobenzene).In the process of carrying out linear polarization irradiation program L, the dichromate dyestuff can be excited to triplet excited state (triple excited state) after light-absorbing energy.Then, the photosensitizer that is in triplet excited state can give off energy and return back to ground state (ground state), and the energy that discharges can make the light initiator decompose and produce and have the structure of free radical (free radical).This radical structure will with vinyl alcohol further reaction so that vinyl alcohol dehydrogenation and with free radical.Vinyl alcohol with free radical will further react with light initiator and side-chain hydrogenated thing RH, and wherein this side chain substituents R bond forms RC to vinyl alcohol
2H
2OH.Then, RC
2H
2OH carries out polyreaction and forms-[CHRCH (OH)]
n-, and because employed light is linear polarization light, so RC
2H
2OH can the direction along linear polarization light arrange in polymerization process, so that overlayer 108 has polarized light property.
Then, can after linear polarization irradiation program L, carry out drying program (not illustrating) so that overlayer 108 further solidifies.Drying program for example is baking program or air knife program.Take the baking program as example, its baking temperature and stoving time depend on the kind of the side chain substituents R of side-chain hydrogenated thing RH.
Fig. 2 is the diagrammatic cross-section of the liquid crystal display of one embodiment of the invention.Then, please refer to Fig. 2, the above-mentioned colored optical filtering substrates 100 of finishing making is stood with 200 groups of active assembly array substrates, and between colored optical filtering substrates 100 and active assembly array substrate 200, provide liquid crystal layer 300 to finish the making of liquid crystal cell (liquid crystal cell).Certainly, liquid crystal cell can comprise also that also a plurality of separation materials (spacer) (not illustrating) are to provide a supporting role.Then, one side near active assembly array substrate 200 backlight module 400 is set in liquid crystal cell again.Then, between backlight module 400 and active assembly array substrate 200, Polarizer 500 is set, roughly to finish the making of liquid crystal display 10.
In this explanation be, liquid crystal display 10 for example is the driving liquid crystal display of a kind of transverse electric field, and it for example is copline suitching type (in plane switching) liquid crystal display or field edge suitching type (fringe field switching) liquid crystal display.In other words, the electrode that is used for driving the liquid crystal molecule 302 of liquid crystal layer 300 in the liquid crystal display 10 all is made on the substrate of the same side, and liquid crystal molecule 302 is to see through the transverse electric field that produces between the electrode to drive.
The explanation as an example of field edge suitching type liquid crystal panel example, the active assembly array substrate 200 of present embodiment comprises substrate 202, the first electrode 204, the first insulation course 205, the second electrode 206 and the second insulation course 207.The first electrode 204 is arranged on the substrate 202, and the first insulation course 205 covers the first electrode 204.The second electrode 206 is arranged on the first electrode 204, and the second insulation course 207 covers the second electrode 206.In other words, the electrode that is used for driving the liquid crystal molecule 302 of liquid crystal layer 300 all is made on the active assembly array substrate 200, then need not make to drive the electrode of liquid crystal molecule 302 on the colored optical filtering substrates 100.At this, because the overlayer 108 on the colored optical filtering substrates 100 has protective effect and polarisation effect simultaneously, so overlayer 108 can replace known script at the Polarizer of liquid crystal cell near the required setting of colored optical filtering substrates 100 1 sides.In other words, in the present embodiment, liquid crystal display 10 can only dispose the purpose that a Polarizer 500 just reaches demonstration.Thus, can reduce the thickness of liquid crystal display 10 and simplify its production process.
In sum, the method for making of colored optical filtering substrates of the present invention is to utilize the irradiation program of linearly polarized photon to make tectal material composite carry out photochemical reaction, and can form the overlayer with polarisation character according to the linear polarization direction of light.In other words, see through the formed overlayer of method for making of the present invention and have simultaneously defencive function and polarisation effect.Thus, when colored optical filtering substrates of the present invention is applied to make liquid crystal display, can reduce the use of one deck Polarizer, with the thickness that reduces liquid crystal display and simplify its production process, and reduce the probability that may affect because the life-span of Polarizer is not good the liquid crystal display display quality.
Claims (10)
1. the manufacture method of a colored optical filtering substrates is characterized in that, comprising:
One substrate is provided, disposes a chromatic filter layer and a light shield layer on this substrate;
Coating one potpourri on this chromatic filter layer and this light shield layer, this potpourri comprises an alcohols monomer, a photosensitizer and a smooth initiator; And
This potpourri is carried out a linear polarization irradiation program.
2. the manufacture method of colored optical filtering substrates as claimed in claim 1 is characterized in that, take this potpourri as 100 weight portions, this alcohols monomer accounts for 75 to 99 weight portions, and this photosensitizer accounts for 0.1 to 20 weight portion, and this light initiator accounts for 0.001 to 5 weight portion.
3. the manufacture method of colored optical filtering substrates as claimed in claim 1 is characterized in that, take this potpourri as 100 weight portions, this alcohols monomer accounts for 93 to 99.8 weight portions, and this photosensitizer accounts for 0.1 to 5 weight portion, and this light initiator accounts for 0.1 to 2 weight portion.
4. the manufacture method of colored optical filtering substrates as claimed in claim 1 is characterized in that, this alcohols monomer comprises vinyl alcohol.
5. the manufacture method of colored optical filtering substrates as claimed in claim 1 is characterized in that, this photosensitizer comprises a dichromate dyestuff.
6. the manufacture method of colored optical filtering substrates as claimed in claim 1; it is characterized in that this light initiator comprises that benzophenone, dimethoxybenzoin (DMPA), chloro sulphur dye green onion ketone (CTX), diethoxy acetophenone (DEAP), hydroxyl dimethyl acetophenone, two dichloro-benzenes acyl group propyl phenyl phosphorous oxide, trimethylbenzene formyl diphenyl phosphate oxidation or the luxuriant derivant of titanium.
7. the manufacture method of colored optical filtering substrates as claimed in claim 1 is characterized in that, this linear polarization irradiation program is ultraviolet light.
8. the manufacture method of colored optical filtering substrates as claimed in claim 1 is characterized in that, this potpourri more comprises a side-chain hydrogenated thing.
9. the manufacture method of colored optical filtering substrates as claimed in claim 1 is characterized in that, after this potpourri of coating and before carrying out this linear polarization irradiation program, also comprises this potpourri is carried out a baking program.
10. the manufacture method of colored optical filtering substrates as claimed in claim 1 is characterized in that, after carrying out this linear polarization irradiation program, also comprises and carries out a drying program.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101909271A CN103364989A (en) | 2013-05-22 | 2013-05-22 | Manufacturing method of color filter substrate |
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|---|---|---|---|
| CN2013101909271A CN103364989A (en) | 2013-05-22 | 2013-05-22 | Manufacturing method of color filter substrate |
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Family
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| CN102985446A (en) * | 2010-07-08 | 2013-03-20 | 电气化学工业株式会社 | Curable resin composition |
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| US20050140894A1 (en) * | 2003-12-31 | 2005-06-30 | Lg.Philips Lcd Co., Ltd. | Liquid crystal display device and fabricating method thereof |
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Application publication date: 20131023 |
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