RESIN COMPOSITION FOR DISPLAY SUBSTRATES, RESIN THIN FILM FOR DISPLAY SUBSTRATES, AND METHOD FOR PRODUCING RESIN THIN FILM FOR DISPLAY SUBSTRATES

• Main Authors: KOIDE YASUYUKI, TAMURA TAKAYUKI
• Format: Patent
• Language: English; Korean
• Published: 19.02.2016
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; ORGANIC MACROMOLECULAR COMPOUNDS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; THEIR PREPARATION OR CHEMICAL WORKING-UP

본 발명은 높은 내열성과, 적당한 선 팽창 계수 및 높은 인장 강도를 갖는 디스플레이 기판용 수지 박막을 형성할 수 있는 디스플레이 기판용 수지 조성물을 제공한다. 본 발명은 식 (1-1) 및 식 (1-2) [식 중, Ar은 식 (2) 의 기를 나타내고, Ar는 식 (3) 의 기를 나타내고, Ar은 식 (4) 의 기를 나타내며, 또한 n, n는 각 반복 단위의 수를 나타내고, n/n＝ 1.7 ∼ 8.2 의 조건을 만족한다] 로 나타내는 구조 단위를 적어도 50 몰％ 함유하는 폴리아믹산으로서, 중량 평균 분자량이 5000 이상인 폴리아믹산을 함유하는 디스플레이 기판용 수지 조성물에 의해서 상기 과제를 해결한다. The present invention provides a resin composition for display substrates, which is capable of forming a resin thin film for display substrates, said resin thin film having high heat resistance, adequate linear expansion coefficient and high tensile strength. The present invention solves the above-mentioned problem by a resin composition for display substrates, which contains a polyamic acid that contains structural units represented by formula (1-1) and formula (1-2) in an amount of at least 50% by mole and has a weight average molecular weight of 5,000 or more. (In the formulae, Ar1 represents a group of formula (2); Ar2 represents a group of formula (3); Ar3 represents a group of formula (4); and n1 and n2 represent the numbers of respective repeating units and satisfy the condition of n1/n2 = 1.7-8.2.)