CN101054505A - Single hot set property frame gum - Google Patents
Single hot set property frame gum Download PDFInfo
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- CN101054505A CN101054505A CN 200710105833 CN200710105833A CN101054505A CN 101054505 A CN101054505 A CN 101054505A CN 200710105833 CN200710105833 CN 200710105833 CN 200710105833 A CN200710105833 A CN 200710105833A CN 101054505 A CN101054505 A CN 101054505A
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Abstract
The invention discloses a PSA LCD panel, comprising a first substrate, a second substrate disposed opposite to the first substrate, a VA liquid crystal provided between the first substrate and the second substrate and a single thermosetting rubber frame provided between the first substrate and the second substrate, wherein the first substrate comprises a plurality of PSA structure and the single thermosetting rubber frame mainly comprises a solvent-free epoxy resin and a thermohardening agent mixing with the solvent-free epoxy resin.
Description
Technical field
The present invention relates to a kind of frame glue, particularly relate to a kind of single hot set property frame gum that is applied to display panels.
Background technology
Liquid-crystal display has that external form is frivolous, current consumption is few and characteristic such as low radiation pollution, be widely used on the portable type information products such as notebook computer (notebook), PDA(Personal Digital Assistant), even the existing trend that replaces the CRT watch-dog of traditional desktop PC gradually.
Generally speaking, display panels includes a colored filter substrate CF (color filter substrate, CF substrate), a thin film transistor base plate TFT (thin-film transistor substrate, TFTsubstrate), and a layer of liquid crystal molecule be filled between CF substrate and the TFT substrate.Wherein the TFT substrate surface includes a plurality of picture element array districts of arranging with array in addition, and each picture element array district all includes a thin film transistor and a pixel electrode, be used for controlling the liquid crystal molecule rotation degree of each picture element region, so that each picture element produces different color GTGs.And the mode that display panels is filled according to liquid crystal molecule can generally be divided into vacuum type injection and liquid crystal drop following formula (one drop fill, ODF) two kinds.
Vacuum type is injected and to be meant earlier CF substrate and TFT substrate connect and to be incorporated in the CF substrate and the TFT substrate side stays an aperture, and then utilize capillary theory that liquid crystal molecule is slowly injected between CF substrate and the TFT substrate, but this liquid crystal injection mode is very consuming time, therefore applies to the small size panel at present mostly.The liquid crystal drop following formula then is earlier the TFT substrate peripheral to be coated with last layer frame glue, and liquid crystal molecule is splashed into the picture element region of TFT substrate center, just the CF substrate is engaged with the TFT substrate then, utilize a UV-irradiation frame glue to make its sclerosis at last again to reach the purpose that engages CF substrate and TFT substrate.With respect to the vacuum type injection mode, utilize liquid crystal drop following formula technology to come the filling liquid crystal molecular layer not only to shorten the time in a large number (a slice large size panel only needs several minutes to a few hours), the usage quantity that simultaneously also can effectively save liquid crystal molecule, therefore large size panel all uses the liquid crystal drop following formula to carry out the filling of liquid crystal molecule at present.
Please refer to Fig. 1, Fig. 1 makes the synoptic diagram of a display panels for known employing liquid crystal drop following formula technology.As shown in Figure 1, at first provide one first substrate 12, for example a thin film transistor base plate with polyimide layer 22 is arranged on a frame glue 14 on first substrate 12 then.Then be located on first substrate 12 with the monomer 18 of technology under the liquid crystal drop with a plurality of liquid crystal molecules 16 and a plurality of UV response types, and provide one second substrate 20, for example a colored filter substrate with polyimide layer 22 engages with first substrate 12 by frame glue 14.Carry out a UV-irradiation technology then, make UV-light pass the first substrate 12 frame glue 14 that hardens, and then carry out a heat energy cure step and solidify frame glue 14 once more, first substrate 12 and second substrate 20 can be combined closely.Provide a voltage to be worse than between first substrate 12 and second substrate 20 subsequently, make liquid crystal molecule 16 deflect into a pre-determined direction, and then carry out another time UV-irradiation technology, make the monomer 18 that is located between first substrate 12 and second substrate 20 aggregate into high molecular polymer, and being formed in the display panels of tilting.
The mode of it should be noted that under the present employing liquid crystal drop is made display panels and is had following shortcoming usually.At first, the above-mentioned known frame glue that adopts aspect sclerosis all with ultraviolet light photopolymerization and heat embrittlement and behavior master.Also promptly, when carrying out liquid crystal drop following formula technology, generally all can carry out the sclerosis first time with UV-light to frame glue earlier, and then carry out a heat embrittlement and handle, make incomplete hardened frame glue reach sclerosis fully.Yet in first time photo-hardening process, owing to the absorption of the 18 pairs of UV-light of monomer that are arranged on the UV response type on the substrate is very responsive, therefore a little UV-light is enough to allow a spot of monomer react and have influence on homogeneity or arrangement mode that these monomers distribute in display panels.Generally speaking, these in advance monomers of reaction concentrate on easily display panel around, as shown in fig. 1, and make liquid crystal molecule produce the phenomenon of poor alignment.
Secondly, at present in the liquid crystal drop following formula technology employed frame glue include two kinds of major ingredient such as the light trigger of 1-5% and acryl resin usually.Light trigger is subjected to light easily and produces free radical, reactive liquid crystals is polluted, in the process of polluting, can cause panel periphery color distribution inequality (Mura) on the one hand by the transmission of liquid crystal or alignment films, then be that light trigger can partly incorporate liquid crystal on the other hand, cause the amount of initiator deficiency, cause frame glue in the photo-hardening process, to harden not exclusively.In addition, the acrylic group that contains in the monomer of UV response type is influenced in the photo-hardening process by light trigger produced in the frame glue free radical also may react, and monomer content is reduced and causes liquid crystal arrangement bad.Therefore, how to improve traditional frame glue that under liquid crystal drop, is adopted in the technology and be an important topic now.
Summary of the invention
Therefore main purpose of the present invention provides a kind of single hot set property frame gum, to solve above-mentioned known problem.
A kind of single hot set property frame gum disclosed according to the present invention, it mainly comprises a kind of no-solvent type (solvent-free) Resins, epoxy and a thermoinitiators is mixed with this no-solvent type epoxy resin.Wherein, this no-solvent type epoxy resin includes following chemical formula:
Another object of the present invention is to disclose a kind of polymer stabilizing aligned liquid-crystal display panel (PSA LCDpanel), and it comprises the settings of first substrate, one second substrate and the first substrate subtend, a vertical orientated (VerticalAlignment; VA) liquid crystal layer is arranged between first substrate and second substrate and a single hot set property frame gum is located between first substrate and second substrate.Wherein, first substrate comprises a plurality of polymer orientation structures, and single hot set property frame gum mainly comprises above-mentioned no-solvent type epoxy resin and a thermoinitiators is mixed with this no-solvent type epoxy resin, and no-solvent type epoxy resin has above-mentioned chemical formula.
Another object of the present invention provides a kind of method of making display panels.One first substrate at first is provided, provides above-mentioned frame glue then on first substrate periphery, and a plurality of liquid crystal molecules and a plurality of monomer are arranged on first substrate with technology under the liquid crystal drop.One second substrate then is provided, engages with first substrate, provide a heat energy then, make first substrate and the second substrate involution to solidify frame glue by frame glue.Provide a luminous energy in these monomers at last again, to form a plurality of polymkeric substance.
Single hot set property frame gum disclosed in this invention mainly comprises a kind of no-solvent type epoxy resin and a thermoinitiators is mixed with this no-solvent type epoxy resin, therefore the step that does not need during technology to adopt light/heat to walk abreast as processes well known under the carrying out liquid crystal drop frame glue that hardens makes the frame adhesive curing and only need carry out single thermal process.Secondly, single hot set property frame gum of the present invention is not owing to contain compositions such as light trigger and acryl resin, therefore can avoid reacting between these compositions and monomer and causes the bad and display panels of liquid crystal arrangement that the problem of color distribution inequality takes place on every side.In addition, because the single hot set property frame gum that adopts in the technology under liquid crystal drop of the present invention does not need to carry out other photo-hardening technology as traditional technology, therefore need not prepare extra irradiation hardening equipment, not only can reduce the integrated artistic time, can reduce production costs again.
Description of drawings
Fig. 1 makes the synoptic diagram of a display panels for known employing liquid crystal drop following formula technology.
Fig. 2 makes the synoptic diagram of a display panels for preferred embodiment of the present invention.
Fig. 3 is single hot set property frame gum of the present invention process of setting synoptic diagram during technology under liquid crystal drop.
Wherein:
12 first substrates, 14 frame glue
16 liquid crystal molecules, 18 monomers
20 second substrates, 22 polyimide layers
32 first substrates, 34 frame glue
36 liquid crystal molecules, 38 monomers
40 second substrates, 42 polyimide layers
Embodiment
Please refer to Fig. 2, Fig. 2 makes the synoptic diagram of a display panels for preferred embodiment of the present invention.As shown in Figure 2, at first provide one first substrate 32, for example a substrate with polyimide layer 42 is arranged on a frame glue 34 on first substrate 32 then.Then with technology under the liquid crystal drop with a plurality of liquid crystal molecules 36 and a plurality of monomer 38, for example UV response type monomer is located on first substrate 32.One second substrate 40 is provided subsequently, and for example a substrate with polyimide layer 42 engages with first substrate 32 by frame glue 34.Then provide a heat energy to solidify frame glue 34 again, make first substrate 32 and second substrate, 40 involutions, and apply a voltage and be worse than between first substrate 32 and second substrate 40, make liquid crystal molecule 36 deflections and have a tilt angle.Provide a luminous energy (for example visible light or UV-light) in monomer 38 at last again, make monomer 38 aggregate into high molecular polymer and be formed in the display panels, to form a polymer stabilizing aligned liquid-crystal display panel.In the present embodiment, the example of first substrate 32 can be thin film transistor base plate, colored filter substrate, common electrode substrate or colored filter in multiple substrate (color filter on array; COA), the example of second substrate 40 can be the colored filter substrate different with first substrate 32, thin film transistor base plate, colored filter accordingly in multiple substrate (color filter on array; COA) or the common electrode substrate.
According to preferred embodiment of the present invention, the temperature range that is used for solidifying the heat energy of frame glue is about 100 ℃ to 150 ℃, is preferably 100 ℃ to 130 ℃, and provide heat energy with the processing step that solidifies frame glue in, provide the time of heat energy to be about 3000 to 5400 seconds.Secondly, frame glue used in the present invention is a kind of single hot set property frame gum, for example, the composition of this frame glue comprise mainly that a kind of no-solvent type (solvent-free) Resins, epoxy, a thermoinitiators mix with this no-solvent type epoxy resin, a weighting agent, an additive or aforesaid combination.Wherein, thermoinitiators comprises amido (amine), weighting agent comprises silicate (silicate) and additive-package contains silane (silane).In addition, the no-solvent type epoxy resin in the frame glue mainly comprises:
It should be noted that, since the present invention under liquid crystal drop in the technology employed frame glue be the composition that adopts above-mentioned no-solvent type epoxy resin, and do not contain or very little a spot of known frame glue in the light trigger and the acryl resin that are adopted, therefore under carrying out liquid crystal drop, not only can be reduced to single heat energy hardening process by known required twice hardening process (hardening process that light/heat walks abreast) during technology, to save the process time and to reduce production costs, and more can effectively avoid the problem that light trigger and acryl resin caused in the known technology, improve the product yield.
Please refer to Fig. 3, Fig. 3 is single hot set property frame gum of the present invention process of setting synoptic diagram during technology under liquid crystal drop.As shown in Figure 3, primary amine (primary amine) can carry out ring-opening reaction and produce monohydroxy (hydroxyl group) with epoxy group(ing) earlier after being subjected to thermocatalysis, be connected to become one than macromole, primary amine become have active secondary amine (secondary amine).Then secondary amine also can carry out ring-opening reaction with epoxy group(ing) repeating step one, then then carries out autocatalysis ring-opening reaction such as step 2 with hydroxyl, forms bigger molecule, becomes etherification reaction (etherification).So, reaction is constantly carried out, and just can be generated as the crosslinked reticulated structure of three-dimensional space (cross linkage) at last, produces gelatin phenomenon (gelation).Along with the carrying out of gelatin phenomenon, viscosity can constantly rise, and molecular weight also constantly increases, and forms huge molecular structure, and finally forms fine and close solid.
In sum, single hot set property frame gum disclosed in this invention mainly adopts an a kind of no-solvent type epoxy resin and a thermoinitiators to mix with this no-solvent type epoxy resin, therefore the step that does not need during technology to adopt light/heat to walk abreast as processes well known under the carrying out liquid crystal drop frame glue that hardens makes the frame adhesive curing and only need carry out single thermal process.Secondly, because single hot set property frame gum of the present invention do not contain compositions such as light trigger and acryl resin, therefore can avoid reacting between these compositions and UV response type monomer and cause the bad and display panels of liquid crystal arrangement that the problem of color distribution inequality takes place on every side.In addition, because the single hot set property frame gum that adopts in the technology under liquid crystal drop of the present invention does not need to carry out other photo-hardening technology as traditional technology, therefore need not prepare extra irradiation hardening equipment, not only can reduce the integrated artistic time, can reduce production costs again.
The above only is preferred embodiment of the present invention, and all equalizations of being done according to the present patent application claim change and modify, and all should belong to covering scope of the present invention.
Claims (17)
1. single hot set property frame gum comprises:
A kind of no-solvent type epoxy resin, this no-solvent type epoxy resin comprises
And
One thermoinitiators is mixed with this no-solvent type epoxy resin.
2. single hot set property frame gum as claimed in claim 1 is characterized in that: described thermoinitiators comprises amido.
3. single hot set property frame gum as claimed in claim 1 is characterized in that: also comprise a weighting agent, an additive or aforesaid combination.
4. single hot set property frame gum as claimed in claim 3 is characterized in that: described weighting agent comprises silicate.
5. single hot set property frame gum as claimed in claim 3 is characterized in that: described additive-package contains silane.
6. display panels comprises:
One first substrate comprises a plurality of polymer orientation structures;
One second substrate is provided with this first substrate subtend;
One liquid crystal layer is arranged between this first substrate and this second substrate; And
One single hot set property frame gum is between this first substrate and this second substrate.
7. method of making display panels comprises:
One first substrate is provided;
Provide a single hot set property frame gum on this first substrate peripheral, this single hot set property frame gum comprises: a kind of no-solvent type epoxy resin, this no-solvent type epoxy resin comprises
And a thermoinitiators, mix with this no-solvent type epoxy resin;
With technology under the liquid crystal drop a plurality of liquid crystal molecules and a plurality of monomer are arranged on this first substrate;
One second substrate is provided, engages with this first substrate by this single hot set property frame gum;
Provide a heat energy to solidify this single hot set property frame gum, make this first substrate and this second substrate involution; And
Provide a luminous energy in these monomers, to form a plurality of polymkeric substance.
8. method as claimed in claim 7 is characterized in that: after providing this heat energy with the step of solidifying this single hot set property frame gum, also comprising provides a voltage to be worse than between this first substrate and this second substrate, makes this liquid crystal molecule have a tilt angle.
9. method as claimed in claim 8 is characterized in that: described provide this luminous energy in these monomeric steps after this provides this voltage to be worse than step between this first substrate and this second substrate.
10. method as claimed in claim 7 is characterized in that: described provide this luminous energy in these monomeric steps be positioned at this provide this heat energy with the step of solidifying this single hot set property frame gum after.
11. method as claimed in claim 7 is characterized in that: the temperature range of described heat energy is about 100 ℃-150 ℃.
12. method as claimed in claim 7 is characterized in that: the temperature range of described heat energy is about 100 ℃-130 ℃.
13. method as claimed in claim 7 is characterized in that: described thermoinitiators comprises amido.
14. method as claimed in claim 7 is characterized in that: described single hot set property frame gum also comprises a weighting agent, an additive or aforesaid combination.
15. method as claimed in claim 14 is characterized in that: described weighting agent comprises silicate.
16. method as claimed in claim 14 is characterized in that: described additive-package contains silane.
17. method as claimed in claim 11 is characterized in that: described this heat energy that provides provides the time of this heat energy to be about 3000 to 5400 seconds with in the step of solidifying this single hot set property frame gum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710105833 CN101054505A (en) | 2007-05-30 | 2007-05-30 | Single hot set property frame gum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710105833 CN101054505A (en) | 2007-05-30 | 2007-05-30 | Single hot set property frame gum |
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| CN101054505A true CN101054505A (en) | 2007-10-17 |
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| CN 200710105833 Pending CN101054505A (en) | 2007-05-30 | 2007-05-30 | Single hot set property frame gum |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7876401B2 (en) | 2007-10-24 | 2011-01-25 | Au Optronics Corp. | Method for manufacturing a liquid crystal display using a polymer stability alignment process with a sealant pre-curing process |
| CN102033363A (en) * | 2010-11-16 | 2011-04-27 | 华映视讯（吴江）有限公司 | Liquid crystal display panel and forming method of liquid crystal layer thereof |
| CN101726904B (en) * | 2008-10-14 | 2012-02-22 | 华映视讯（吴江）有限公司 | Method for making liquid crystal panel |
| CN105137671A (en) * | 2015-10-12 | 2015-12-09 | 京东方科技集团股份有限公司 | Liquid crystal box and preparation method thereof as well as display panel |
| CN105676543A (en) * | 2009-12-24 | 2016-06-15 | 乐金显示有限公司 | Method of fabricating liquid crystal display device |
| WO2018188144A1 (en) * | 2017-04-11 | 2018-10-18 | 惠科股份有限公司 | Display panel and display device |
| CN111073523A (en) * | 2019-12-19 | 2020-04-28 | Tcl华星光电技术有限公司 | Frame glue and preparation method of display panel |
| JPWO2019221027A1 (en) * | 2018-05-17 | 2020-05-28 | 積水化学工業株式会社 | Sealant for liquid crystal display element, vertical conduction material, and liquid crystal display element |
-
2007
- 2007-05-30 CN CN 200710105833 patent/CN101054505A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7876401B2 (en) | 2007-10-24 | 2011-01-25 | Au Optronics Corp. | Method for manufacturing a liquid crystal display using a polymer stability alignment process with a sealant pre-curing process |
| CN101726904B (en) * | 2008-10-14 | 2012-02-22 | 华映视讯（吴江）有限公司 | Method for making liquid crystal panel |
| CN105676543A (en) * | 2009-12-24 | 2016-06-15 | 乐金显示有限公司 | Method of fabricating liquid crystal display device |
| CN102033363A (en) * | 2010-11-16 | 2011-04-27 | 华映视讯（吴江）有限公司 | Liquid crystal display panel and forming method of liquid crystal layer thereof |
| CN102033363B (en) * | 2010-11-16 | 2013-09-04 | 华映视讯（吴江）有限公司 | Liquid crystal display panel and forming method of liquid crystal layer thereof |
| CN105137671A (en) * | 2015-10-12 | 2015-12-09 | 京东方科技集团股份有限公司 | Liquid crystal box and preparation method thereof as well as display panel |
| WO2018188144A1 (en) * | 2017-04-11 | 2018-10-18 | 惠科股份有限公司 | Display panel and display device |
| JPWO2019221027A1 (en) * | 2018-05-17 | 2020-05-28 | 積水化学工業株式会社 | Sealant for liquid crystal display element, vertical conduction material, and liquid crystal display element |
| TWI813685B (en) * | 2018-05-17 | 2023-09-01 | 日商積水化學工業股份有限公司 | Sealant for liquid crystal display element, upper and lower conduction material, and liquid crystal display element |
| CN111073523A (en) * | 2019-12-19 | 2020-04-28 | Tcl华星光电技术有限公司 | Frame glue and preparation method of display panel |
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