WO2017177827A1 - 一种封框胶及其制备方法、液晶显示装置 - Google Patents

一种封框胶及其制备方法、液晶显示装置 Download PDF

Info

Publication number
WO2017177827A1
WO2017177827A1 PCT/CN2017/078780 CN2017078780W WO2017177827A1 WO 2017177827 A1 WO2017177827 A1 WO 2017177827A1 CN 2017078780 W CN2017078780 W CN 2017078780W WO 2017177827 A1 WO2017177827 A1 WO 2017177827A1
Authority
WO
WIPO (PCT)
Prior art keywords
parts
compound
epoxy compound
sealant
liquid crystal
Prior art date
Application number
PCT/CN2017/078780
Other languages
English (en)
French (fr)
Inventor
张波
谭聪
詹成勇
Original Assignee
京东方科技集团股份有限公司
合肥鑫晟光电科技有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 京东方科技集团股份有限公司, 合肥鑫晟光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/560,419 priority Critical patent/US10221345B2/en
Publication of WO2017177827A1 publication Critical patent/WO2017177827A1/zh

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K3/1006—Materials in mouldable or extrudable form for sealing or packing joints or covers characterised by the chemical nature of one of its constituents
    • C09K3/1021—Polyurethanes or derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
    • C08G59/14—Polycondensates modified by chemical after-treatment
    • C08G59/1433—Polycondensates modified by chemical after-treatment with organic low-molecular-weight compounds
    • C08G59/1477—Polycondensates modified by chemical after-treatment with organic low-molecular-weight compounds containing nitrogen
    • 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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/06—Non-macromolecular additives organic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
    • C09K2200/0615—Macromolecular organic compounds, e.g. prepolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C09K2200/0625—Polyacrylic esters or derivatives thereof
    • 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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G02F1/13398—Spacer materials; Spacer properties

Definitions

  • the present disclosure relates to a frame sealant and a liquid crystal display device.
  • liquid crystal displays Due to the advantages of low operating voltage, low power consumption and radiation, and light and thin appearance, liquid crystal displays have been popularized in recent years and become the mainstream in the market.
  • the first method attempts to reduce the probability of afterimage generation by changing the design of the thin film transistor (TFT), but the design changes are often Modifying the previous design after the afterimage occurs, so changing the design of the thin film transistor and developing a new product is almost the same, and there is no guarantee that the afterimage will be improved.
  • TFT thin film transistor
  • changing the design of the TFT will make the product development cycle longer and develop.
  • the cost is doubled;
  • the second method is to reduce the probability of occurrence of afterimage by changing the image film material and its fabrication process, but changing the process often means changing the thickness of the metal film layer (the metal film layer may include Mo/Al layer).
  • the invention provides a frame sealant, a preparation method thereof and a liquid crystal display device, which are used for solving the problem of high residual image of the liquid crystal display device in the prior art.
  • a sealant comprising a modified epoxy compound obtained by chemically bonding a piperidine compound and an epoxy compound; wherein the modified epoxy compound is contained Nitrogen hydrogen bond.
  • the piperidine compound contains a carboxyl group.
  • the piperidine compound is a compound of formula I,
  • the epoxy compound is a compound of the formula II,
  • the sealant comprises 10 to 90 parts of acrylic resin and 10 to 90 parts of the modified epoxy compound in parts by weight.
  • the sealant further comprises 2 to 5 parts by weight, 5 to 10 parts of a heat curing agent, and 3 to 10 parts of a photoinitiator in parts by weight.
  • a method for preparing a sealant comprising:
  • a step of preparing a modified epoxy compound chemically reacting a piperidine compound with an epoxy compound to obtain a modified epoxy compound;
  • the piperidine compound is a compound of the formula I,
  • the epoxy compound is a compound of the formula II; the compound of the formula I is bonded to the compound of the formula II by an ester bond;
  • a liquid crystal display device comprising a frame sealant according to the present invention.
  • the sealant comprises an epoxy compound modified with a piperidine compound, and the modified epoxy compound generates a radical under ultraviolet light, and the generated radical adsorbs the ion impurity.
  • the obtained sealant comprises an epoxy compound modified with a piperidine compound, and the modified epoxy compound can generate free radicals under ultraviolet light, resulting in Free radicals are capable of adsorbing ionic impurities.
  • the modified epoxy compound in the sealant since the sealant according to the present invention is contained, the modified epoxy compound in the sealant generates radicals under ultraviolet light irradiation, and the generated radicals can be adsorbed on the liquid crystal.
  • the ionic impurities generated when the display device is driven are desorbed by the ionic impurities after the driving voltage applied to the liquid crystal display device disappears to form a ketone or an alcohol, thereby reducing the afterimage of the liquid crystal display device and improving the display quality.
  • Fig. 1 is a view showing the mechanism of generating a radical by an epoxy compound modified with a piperidine compound according to an embodiment of the present invention.
  • a frame sealant comprising a modified epoxy compound obtained by chemically bonding a piperidine compound and an epoxy compound; and the modified epoxy compound contains nitrogen hydrogen key.
  • the sealant according to an embodiment of the present invention contains a modified epoxy compound obtained by chemically bonding a piperidine compound and an epoxy compound, wherein the chemical bond includes an ester bond, and the nitrogen oxide bond contained in the modified epoxy compound means a source.
  • the nitrogen-hydrogen bond in the piperidine ring, the nitrogen-hydrogen bond generates a radical under the irradiation of ultraviolet light, and the generated free radical can capture the ionic impurity, and the sealant is used in the liquid crystal display device to reduce the afterimage of the liquid crystal display device Among them, the ionic impurities include an alkyl group and a fluorine group introduced in a liquid crystal, and other organic substances introduced in a sealant, a color film (CF) material, an alignment film, and the like.
  • the piperidine compound contains a carboxyl group.
  • the piperidine compound contains a carboxyl group capable of forming an ester group with a hydroxyl group-containing epoxy compound, thereby bonding a piperidine compound to the epoxy compound, and modifying the epoxy compound.
  • the piperidine compound is preferably a compound of formula I,
  • the carboxyl group contained in the piperidine compound represented by the formula I of the present invention forms an ester group with the hydroxyl group contained in the epoxy compound, thereby modifying the epoxy compound by the piperidine compound, and the nitrogen hydrogen in the modified epoxy compound.
  • the bond generates free radicals under the irradiation of ultraviolet light, and the generated free radicals can adsorb ionic impurities.
  • the epoxy compound is a compound of formula II
  • the hydroxy-containing epoxy compound represented by Formula II of the present invention can be reacted with a carboxyl group-containing piperidine compound (such as a piperidine compound represented by Formula I) to form an ester group, thereby realizing a modification of the piperidine compound to an epoxy compound.
  • a carboxyl group-containing piperidine compound such as a piperidine compound represented by Formula I
  • Sex As shown in Figure 1, the nitrogen-hydrogen bond in the epoxy compound formed by the modification of the compound of the formula II by the compound of the formula I generates a radical under the irradiation of ultraviolet light, and the generated radical can adsorb the ion impure. Things.
  • the sealant comprises from 10 to 90 parts by weight of the acrylic resin and from 10 to 90 parts of the modified epoxy compound.
  • the modified epoxy compound and the acrylic resin are mixed in a certain ratio, and the performance of the sealant to adsorb the ion impurities can be adjusted as needed, and the ratio of the two can be adjusted according to different requirements to obtain different properties.
  • Frame sealant (such as: fast curing, low temperature curing, strong adhesion, etc.).
  • the sealant further comprises 2 to 5 parts by weight, 5 to 10 parts of a heat curing agent, and 3 to 10 parts of a photoinitiator in parts by weight.
  • the filler is an organic filler and/or an inorganic filler.
  • the filler is an organic filler and/or an inorganic filler.
  • the thermosetting agent is preferably an aliphatic amine or an aromatic amine; and the photoinitiator is preferably a diazonium salt, a diaryl iodonium salt, a triaryl iodonium salt, or an alkane.
  • a method for preparing a sealant comprises:
  • a step of preparing a modified epoxy compound chemically reacting a piperidine compound with an epoxy compound to obtain a modified epoxy compound;
  • the piperidine compound is a compound of formula I,
  • the epoxy compound is a compound of formula II; the compound of formula I is bonded to the compound of formula II by an ester bond;
  • the obtained sealant comprises an epoxy compound modified with a piperidine compound, and the modified epoxy compound can generate free radicals under ultraviolet light, and the generated free radicals can Adsorbed ion impurities.
  • a liquid crystal display device comprising the frame sealant according to the present invention.
  • the modified epoxy compound in the sealant since the sealant according to the present invention is contained, the modified epoxy compound in the sealant generates radicals under ultraviolet light irradiation, and the generated radicals can be adsorbed on the liquid crystal display device.
  • the ionic impurities generated in the liquid crystal display device disappear, the ionic impurities are desorbed to form a ketone or an alcohol, thereby reducing the afterimage of the liquid crystal display device and improving the display quality.
  • the modified epoxy compounds in the examples 1-5 are modified resins obtained by modifying the epoxy compound represented by the formula II with a piperidine compound represented by the formula I by ester bond bonding, and the modification is carried out.
  • the resin contains nitrogen-hydrogen bonds, which generate free radicals under ultraviolet light.
  • the sealant is obtained by mixing 10 parts of acrylic resin, 10 parts of modified epoxy compound, 2 parts of filler, 5 heat curing agent and 3 parts of photoinitiator in parts by weight.
  • the frame sealant is obtained by mixing 90 parts of acrylic resin, 90 parts of modified epoxy compound, 5 parts of filler, 10 parts of heat curing agent and 10 parts of photoinitiator in parts by weight.
  • a frame sealant is obtained by mixing 20 parts by weight of acrylic resin, 80 parts of modified epoxy compound, 4 parts of filler, 8 parts of heat curing agent and 8 parts of photoinitiator.
  • the frame sealant was obtained by mixing 40 parts of acrylic resin, 70 parts of modified epoxy compound, 3 parts of filler, 7 parts of heat curing agent and 9 parts of photoinitiator in parts by weight.
  • the frame sealant was obtained by mixing 50 parts of acrylic resin, 80 parts of modified epoxy compound, 4 parts of filler, 6 parts of heat curing agent and 9 parts of photoinitiator in parts by weight.
  • the sealant which can adsorb the ionic impurities is obtained; the sealant obtained in the examples 1-5 is used for the liquid crystal display device, and the obtained liquid crystal display device is identical to other conditions but conventionally used.
  • the ratio of peripheral afterimages is reduced by 60%, and the afterimage level is decreased by 1-2 levels.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Sealing Material Composition (AREA)
  • Liquid Crystal (AREA)
  • Epoxy Resins (AREA)

Abstract

公开了一种封框胶及其制备方法、液晶显示装置。所述封框胶中含有用哌啶类化合物与环氧化合物通过化学键结合得到的改性环氧化合物；改性环氧化合物中含有氮氢键。上述封框胶的制备方法，包括：改性环氧化合物的制备步骤：用哌啶类化合物与环氧化合物进行化学反应，得到改性环氧化合物；混合步骤：将10～90份的改性环氧化合物、10～90份亚克力树脂、2～5份填充剂、5～10份热固化剂和3～10份光引发剂混合均匀，得到封框胶。所述液晶显示装置包括上述的封框胶。

Description

一种封框胶及其制备方法、液晶显示装置 技术领域
本公开涉及一种封框胶和液晶显示装置。
背景技术
由于液晶显示器具有较低的工作电压、较低的功耗和辐射以及轻薄的外观等优势，近年不断的得到普及，成为了市场主流。
随着生活水平的提高，人们对显示性能也提出了越来越高的要求，不仅希望具有高亮度、高对比度和高响应速度，而且对整个显示器的画面品质要求也越来越苛刻，如Mura和残像，其中，Mura是指显示器亮度不均匀,造成各种痕迹的现象；残像也叫影像残留，是长时间显示同一静止画面，在改变显示内容后仍留下之前画面的现象。
其中，残像对画面品质有严重影响，现有技术中一般采用两种方法试图解决残像问题，第一种方法通过变更薄膜晶体管(TFT)的设计试图减小残像发生的几率，但设计的变更往往在残像发生后修改之前的设计方案，因此变更薄膜晶体管的设计与开发一款新产品几乎无异，且不能保证会对残像一定有改善，同时变更TFT的设计会使产品开发周期变长，开发成本翻倍；第二种方法是通过改变配像膜材料及其制作工艺试图减小残像发生的几率，但是改变工艺制程往往是指改变金属膜层(金属膜层可能包括Mo/Al层)厚度、配向膜厚度以及透明保护层(OC)的厚度、从而延缓离子不纯物释放的时间，但改变配向膜材料及其制作工艺只能延迟残像出现的时间，并不能真正使残像消失。因此这两种方法都没有从根本上解决残像问题。
发明内容
本发明提供了一种封框胶及其制备方法、液晶显示装置，用以解决现有技术中液晶显示装置残像高的问题。
根据本发明的一方面，提供了一种封框胶，该封框胶中含有用哌啶类化合物与环氧化合物通过化学键结合得到的改性环氧化合物；所述改性环氧化合物中含有氮氢键。
可选地，根据本发明一实施方案的封框胶，所述哌啶类化合物含有羧基。
例如，根据本发明一实施方案的封框胶，所述哌啶类化合物为式I所示化合物，
Figure PCTCN2017078780-appb-000001
可选地，根据本发明一实施方案的封框胶，所述环氧化合物为式II所示化合物，
Figure PCTCN2017078780-appb-000002
可选地，根据本发明一实施方案的封框胶，该封框胶包括以重量份计的10～90份亚克力树脂和10～90份所述改性环氧化合物。
可选地，根据本发明一实施方案的封框胶，该封框胶还包括以重量份计的2～5份填充剂、5～10份热固化剂和3～10份光引发剂。
根据本发明的另一方面，提供了一种封框胶的制备方法，包括：
改性环氧化合物的制备步骤：用哌啶类化合物与环氧化合物进行化学反应，得到改性环氧化合物；
混合步骤：将10～90份所述改性环氧化合物、10～90份亚克力树脂、2～5份填充剂、5～10份热固化剂和3～10份光引发剂混合均匀，得到封框胶。
可选地，根据本发明一实施方案的制备方法，所述哌啶类化合物为式I所示化合物，
Figure PCTCN2017078780-appb-000003
可选地，根据本发明一实施方案的制备方法，所述环氧化合物为式II所示化合物；式I所示化合物与式II所示化合物通过酯键结合；
Figure PCTCN2017078780-appb-000004
根据本发明的另一方面，提供了一种液晶显示装置，该液晶显示装置包括根据本发明的封框胶。
根据本发明一实施方案的封框胶，包括用哌啶类化合物改性后的环氧化合物，改性环氧化合物在紫外光照下能够产生自由基，产生的自由基能够吸附离子不纯物。
根据本发明一实施方案的制备方法，得到的封框胶中包括用哌啶类化合物改性后的环氧化合物，改性环氧化合物在紫外光照下能够产生自由基，产生的 自由基能够吸附离子不纯物。
根据本发明一实施方案的液晶显示装置，由于包含了根据本发明的封框胶，该封框胶中的改性环氧化合物在紫外光照射下产生自由基，产生的自由基能够吸附在液晶显示装置驱动时产生的离子不纯物，在液晶显示装置施加的驱动电压消失之后离子不纯物脱吸附并形成酮类或醇类等物质，从而降低液晶显示装置的残像，提高显示品质。
附图说明
图1为根据本发明一实施方案的一种用哌啶类化合物改性后的环氧化合物产生自由基的机理图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例的附图，对本发明实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本发明的一部分实施例，而不是全部的实施例。基于所描述的本发明的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本发明保护的范围。
根据本发明的一方面，提供了一种封框胶，该封框胶中含有用哌啶类化合物与环氧化合物通过化学键结合得到的改性环氧化合物；改性环氧化合物中含有氮氢键。
根据本发明一实施方案的封框胶含有用哌啶类化合物与环氧化合物通过化学键结合得到的改性环氧化合物，其中化学键包括酯键，改性环氧化合物中含有氮氢键是指来源于哌啶环中的氮氢键，氮氢键在紫外光照射下产生自由基，产生的自由基能够捕获离子不纯物，将该封框胶用于液晶显示装置能够降低液晶显示装置的残像，其中离子不纯物包括在液晶中引入的烷基和氟基，以及在封框胶、彩膜(CF)材料和配向膜等中引入的其它有机物。
根据本发明封框胶的一种实施方式，哌啶类化合物含有羧基。
根据本发明一实施方案的封框胶，哌啶类化合物含有羧基能够与含有羟基的环氧化合物形成酯基，从而将哌啶类化合物键合在环氧化合物上，对环氧化合物进行改性。
根据本发明封框胶的一种实施方式，哌啶类化合物优选式I所述化合物，
Figure PCTCN2017078780-appb-000005
根据本发明式I所示的哌啶类化合物含有的羧基与环氧化合物含有的羟基形成酯基，实现哌啶类化合物对环氧化合物的改性，改性后的环氧化合物中的氮氢键在紫外光的照射下能够产生自由基，产生的自由基能够吸附离子不纯物。
根据本发明封框胶的一种实施方式，环氧化合物为式II所示化合物，
Figure PCTCN2017078780-appb-000006
根据本发明式II所示的含有羟基环氧化合物能够与含有羧基的哌啶类化合物(如式I所示的哌啶类化合物)反应形成酯基，实现哌啶类化合物对环氧化合物的改性。如图1所示，用式I所示化合物对式II所示化合物改性后形成的环氧化合物中的氮氢键在紫外光的照射下产生自由基，产生的自由基能够吸附离子不纯物。
根据本发明封框胶的一种实施方式，该封框胶包括以重量份计的10～90份亚克力树脂和10～90份改性环氧化合物。
根据本发明的封框胶，改性环氧化合物和亚克力树脂按一定比例混合，可以根据需要调节封框胶吸附离子不纯物的性能，按照不同需求通过调节两者的比例可以得到不同性能的封框胶(如：快速固化，低温固化，强粘附力等)。
根据本发明封框胶的一种实施方式，该封框胶还包括以重量份计的2～5份填充剂、5～10份热固化剂和3～10份光引发剂。
根据本发明的封框胶，加入一定比例的添加剂，调节封框胶的性能(如：快速固化，低温固化，强粘附力等)，其中填充剂为有机填充剂和/或无机填充剂，优选树脂类、二氧化硅类、玻璃纤维类等；热固化剂优选脂肪族胺类、芳族胺类；光引发剂优选重氮盐、二芳基碘鎓盐、三芳基碘鎓盐、烷基硫鎓盐、铁芳烃盐。
根据本发明的另一方面，提供的封框胶制备方法，包括：
改性环氧化合物的制备步骤：用哌啶类化合物与环氧化合物进行化学反应，得到改性环氧化合物；
混合步骤：将10～90份改性环氧化合物、10～90份亚克力树脂、2～5份填充剂、5～10份热固化剂和3～10份光引发剂混合均匀，得到封框胶。
根据本发明制备方法的一种实施方式，哌啶类化合物为式I所示化合物，
Figure PCTCN2017078780-appb-000007
根据本发明制备方法的一种实施方式，环氧化合物为式II所示化合物；式I所示化合物与式II所示化合物通过酯键结合；
Figure PCTCN2017078780-appb-000008
根据本发明一实施方案的制备方法，得到的封框胶中包括用哌啶类化合物改性后的环氧化合物，改性环氧化合物在紫外光照下，能够产生自由基，产生的自由基能够吸附离子不纯物。
根据本发明另一方面的液晶显示装置，该液晶显示装置包括根据本发明的封框胶。
根据本发明的液晶显示装置，由于包含了根据本发明的封框胶，该封框胶中的改性环氧化合物在紫外光照射下产生自由基，产生的自由基能够吸附在液晶显示装置驱动时产生的离子不纯物，在液晶显示装置施加的驱动电压消失之后离子不纯物脱吸附并形成酮类或醇类等物质，从而降低液晶显示装置的残像，提高显示品质。
综上所述，根据本发明的封框胶和液晶显示装置，可选因素较多。根据本发明的权利要求可以组合出多种实施方案，因此根据本发明的权利要求组合出的技术方案均在本发明的保护范围之内。下面将结合具体的实施例对本发明封框胶的制备方法进行进一步地描述。
其中，实施例1-5中的改性环氧化合物均是用式I所示的哌啶类化合物对式II所示的环氧化合物通过酯键结合改性得到的改性树脂，该改性树脂中含有氮氢键，在紫外光照射下能产生自由基。
实施例1
将以重量份计的10份的亚克力树脂，10份改性环氧化合物，2份填充剂、5热固化剂和3份光引发剂混合得到封框胶。
实施例2
将以重量份计的90份亚克力树脂，90份改性环氧化合物，5份填充剂、10份热固化剂和10份光引发剂混合得到封框胶。
实施例3
将以重量份计的20份亚克力树脂，80份改性环氧化合物，4份填充剂、8份热固化剂和8份光引发剂混合得到封框胶。
实施例4
将以重量份计的40份亚克力树脂，70份改性环氧化合物，3份填充剂、7份热固化剂和9份光引发剂混合得到封框胶。
实施例5
将以重量份计的50份亚克力树脂，80份改性环氧化合物，4份填充剂、6份热固化剂和9份光引发剂混合得到封框胶。
根据实施例1-5均得到了可以吸附离子不纯物的封框胶；将实施例1-5得到的封框胶用于液晶显示装置，得到的液晶显示装置与其它条件完全相同但用传统的封框胶的液晶显示装置相比，周边残像比例下降了60％，残像等级下降了1-2个等级。
需要注意的是，本申请实施例中的技术特征，在不冲突的情况下可以任意组合使用。
以上所述仅是本发明的示范性实施方式，而非用于限制本发明的保护范围，本发明的保护范围由所附的权利要求确定。
本申请要求于2016年4月14日递交的中国专利申请第201610232626.4号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。

Claims (10)

  1. 一种封框胶，其中，该封框胶中含有用哌啶类化合物与环氧化合物通过化学键结合得到的改性环氧化合物；并且所述改性环氧化合物中含有氮氢键。
  2. 根据权利要求1所述的封框胶，其中，所述哌啶类化合物含有羧基。
  3. 根据权利要求2所述的封框胶，其中，所述哌啶类化合物为式I所示化合物，
    Figure PCTCN2017078780-appb-100001
  4. 根据权利要求1所述的封框胶，其中，所述环氧化合物为式II所示化合物，
    Figure PCTCN2017078780-appb-100002
  5. 根据权利要求1所述的封框胶，其中，该封框胶包括以重量份计的10～90份亚克力树脂和10～90份所述改性环氧化合物。
  6. 根据权利要求5所述的封框胶，其中，该封框胶还包括以重量份计的2～5份填充剂、5～10份热固化剂和3～10份光引发剂。
  7. 一种封框胶的制备方法，包括：
    改性环氧化合物的制备步骤：用哌啶类化合物与环氧化合物进行化学反应，得到改性环氧化合物；和
    混合步骤：将10～90份所述改性环氧化合物、10～90份亚克力树脂、2～5份填充剂、5～10份热固化剂和3～10份光引发剂混合均匀，得到封框胶。
  8. 根据权利要求7所述的制备方法，其中，所述哌啶类化合物为式I所示化合物，
    Figure PCTCN2017078780-appb-100003
  9. 根据权利要求8所述的制备方法，其中，所述环氧化合物为式II所示化合物；式I所示化合物与式II所示化合物通过酯键结合；
    Figure PCTCN2017078780-appb-100004
  10. 一种液晶显示装置，包括权利要求1～6任一所述的封框胶。
PCT/CN2017/078780 2016-04-14 2017-03-30 一种封框胶及其制备方法、液晶显示装置 WO2017177827A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US15/560,419 US10221345B2 (en) 2016-04-14 2017-03-30 Sealing adhesive, its preparation method, and liquid crystal display device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610232626.4 2016-04-14
CN201610232626.4A CN105802559B (zh) 2016-04-14 2016-04-14 一种封框胶及其制备方法、液晶显示装置

Publications (1)

Publication Number Publication Date
WO2017177827A1 true WO2017177827A1 (zh) 2017-10-19

Family

ID=56459308

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/078780 WO2017177827A1 (zh) 2016-04-14 2017-03-30 一种封框胶及其制备方法、液晶显示装置

Country Status (3)

Country Link
US (1) US10221345B2 (zh)
CN (1) CN105802559B (zh)
WO (1) WO2017177827A1 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105802559B (zh) 2016-04-14 2018-09-18 京东方科技集团股份有限公司 一种封框胶及其制备方法、液晶显示装置
CN106675436B (zh) * 2017-01-03 2019-03-15 京东方科技集团股份有限公司 一种封框胶及其制备方法、液晶显示面板及其制备方法
CN108594541B (zh) * 2018-05-04 2021-03-16 京东方科技集团股份有限公司 一种封框胶及其制备方法、液晶显示面板
CN112198693B (zh) * 2020-10-23 2021-07-23 Tcl华星光电技术有限公司 显示面板和母板

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5596024A (en) * 1993-06-22 1997-01-21 Three Bond Co., Ltd. Sealing composition for liquid crystal
CN105331314A (zh) * 2015-11-17 2016-02-17 万华化学集团股份有限公司 一种耐候型环氧胶及其制备方法和应用
CN105802559A (zh) * 2016-04-14 2016-07-27 京东方科技集团股份有限公司 一种封框胶及其制备方法、液晶显示装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1651542A (zh) * 2005-01-07 2005-08-10 武汉理工大学 一种砂纸用环氧树脂粘结剂及其制备方法
CN103131364A (zh) * 2011-11-30 2013-06-05 常熟市辛庄镇前进五金厂 单组分室温固化环氧建筑胶的制备方法
CN102746487A (zh) * 2012-05-21 2012-10-24 绵阳惠利电子材料有限公司 一种led封装环氧树脂复合物
CN103881629B (zh) 2014-03-19 2015-12-09 京东方科技集团股份有限公司 封框胶、显示面板及显示装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5596024A (en) * 1993-06-22 1997-01-21 Three Bond Co., Ltd. Sealing composition for liquid crystal
CN105331314A (zh) * 2015-11-17 2016-02-17 万华化学集团股份有限公司 一种耐候型环氧胶及其制备方法和应用
CN105802559A (zh) * 2016-04-14 2016-07-27 京东方科技集团股份有限公司 一种封框胶及其制备方法、液晶显示装置

Also Published As

Publication number Publication date
US20180187055A1 (en) 2018-07-05
CN105802559A (zh) 2016-07-27
US10221345B2 (en) 2019-03-05
CN105802559B (zh) 2018-09-18

Similar Documents

Publication Publication Date Title
WO2017177827A1 (zh) 一种封框胶及其制备方法、液晶显示装置
TWI242092B (en) Repairing method of a liquid crystal display panel
CN103965821B (zh) 一种封框胶组合物及显示装置
US9540534B2 (en) Sealant and method of preparing the same
CN1664657A (zh) 液晶定向剂、液晶定向膜以及液晶显示元件
JPH06160872A (ja) 液晶表示パネル用シール材及びそれを用いた液晶表示パネル
TW200931142A (en) Liquid crystal sealing agent and liquid crystal display cell using the same
WO2014114010A1 (zh) 一种边框胶材、液晶显示面板以及相应的液晶显示器
WO2014114013A1 (zh) 一种聚合物稳定垂直配向液晶显示面板及液晶显示器
TW201042016A (en) Sealant for liquid crystal and liquid crystal disply cell using the same
WO2017154747A1 (ja) 液晶表示装置及び配向膜
WO2017084147A1 (zh) 反应型垂直取向有机硅材料及液晶显示面板的制作方法
JP2011150181A (ja) 熱硬化型液晶滴下工法用液晶シール剤及びそれを用いた液晶表示セル
JP6231230B2 (ja) 液晶シール剤及びそれを用いた液晶表示セル
WO2016056560A1 (ja) 液晶滴下工法用シール剤、上下導通材料、及び、液晶表示素子
TW201326335A (zh) 改進液晶污染問題的顯示元件用密封劑合成物及固化其形成的密封劑
JP2011008048A (ja) 液晶滴下工法用液晶シール剤及びそれを用いた液晶表示セル
JPWO2009075273A1 (ja) 液晶表示装置の製造方法
TW201835282A (zh) 輻射可固化的密封劑組合物
TW201831641A (zh) 熱可固化密封劑組合物
JP2018022052A (ja) 液晶シール剤及びそれを用いた液晶表示セル
JP2018022052A5 (zh)
JP2014006325A (ja) 液晶シール剤及びそれを用いた液晶表示セル
JP2017173368A (ja) 液晶シール剤及びそれを用いた液晶表示セル
JP2013067569A (ja) 新規ヒドラジド化合物及びそれを用いた樹脂組成物

Legal Events

Date Code Title Description
NENP Non-entry into the national phase

Ref country code: DE

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17781803

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 17781803

Country of ref document: EP

Kind code of ref document: A1