Abstract:
PURPOSE: A composition for organic thin film transistor is provided to form organic insulating film having excellent solvent resistance, durability, and insulating property. CONSTITUTION: A composition for organic thin film transistor comprises a material of chemical formula I or II and cross linking agent having a maleimide group. In chemical formula I or II, R' and R" are separately hydrogen atom, hydroxy group, ester group, amide group, or alkyl group or alkoxy group of 1-12 carbon atoms.
Abstract:
PURPOSE: A method for locally crystallizing organic thin film and a method for improving organic thin film transistor using the same are provided to locally improve the crystallinity of an organic layer by performing thermal process. CONSTITUTION: An organic layer(150) is formed on a substrate(110). An organic solvent(S) is applied on a specific area(150a) for improving crystallinity. The organic solvent gradually is evaporated. The movement of particles of the organic layer is activated in the area spread by the organic solvent. The crystallinity of the area spread by the organic solvent is locally improved through self-alignment.
Abstract:
A self-aligned organic FET(field effect transistor) is provided to reduce parasitic capacitance by using a photosensitive polymer thin film as a gate electrode and by preventing a gate electrode from overlapping a source/drain electrode. A gate electrode is formed on a substrate(201) by using a photosensitive polymer thin film. A gate insulation layer(203) is formed on the substrate and the gate electrode. A source electrode(206) and a drain electrode(207) are formed on the gate insulation layer at both sides of a channel region in a manner that doesn't overlap the gate electrode. An organic semiconductor layer is formed on the gate insulation layer in the channel region. The gate insulation layer can be made of an organic or inorganic material with transparency. A transparent electrode can be used as the source electrode and the drain electrode.
Abstract:
본 발명은 굴절률이 다른 두개의 산화막으로 구성된 절연막을 갖는 평판표시장치 및 그 제조방법에 관한 것이다. 본 평판표시장치는 기판 상에 형성되는 복수의 절연막; 상기 복수의 절연막 중 하나를 사이에 두고 적층되는 반도체층, 게이트 전극, 및 소스/드레인 전극을 포함하는 박막 트랜지스터; 상기 소스/드레인 전극 상에 형성되는 평탄화막; 제1 전극, 발광층 및 제2 전극을 구비하며 상기 평탄화막 상에 형성되는 발광소자를 포함하며, 상기 복수의 절연막 중 적어도 하나는 굴절률이 다른 두 개이상의 산화막으로 이루어진다. 이에, 굴절률이 다른 산화막으로 구성된 절연막에 의해, 외부에서 유입되는 빛 반사를 방지하여 콘트라스트가 저하되는 것을 방지할 수 있다. 산화막, 절연막, 굴절률
Abstract:
In the present invention, disclosed are a dual mode display device and a manufacturing method thereof. The dual mode display device includes a bottom substrate, a top substrate which faces the bottom substrate, a thin film transistor part which is formed between the top substrate and the bottom substrate, a first anode which is formed on one side of the thin film transistor part, a first cathode which is formed between the first anode and the top substrate, an organic light emitting layer which is formed between the first cathode and the first anode, a second anode which is formed on the other side of the thin film transistor part, a second cathode which is formed between the second anode and the top substrate or between the second anode and the bottom substrate, and an optical switching layer which is formed between the second cathode and the second anode.
Abstract:
PURPOSE: A method for fabricating graphene is provided to cost-effectively fabricate a high quality of graphene by simply fabricating a graphite interlayer compound. CONSTITUTION: A method for fabricating graphene comprises the steps of: preparing an inserting material containing at least one alkaline metal or alkaline earth metal; preparing a graphite generating material; forming a mixture by mixing the inserting material and the graphite generating material (S110); forming a graphite interlayer compound by thermally treating the mixture (S120); and exfoliating graphene from the graphite interlayer compound (S130). The graphite generating material further contains a sacrificial graphite generating material. [Reference numerals] (S110) Form a mixture by mixing an inserting material containing at least one alkaline metal or alkaline earth metal and a graphite generating material; (S120) Form a graphite interlayer compound by thermally treating the mixture; (S130) Exfoliate graphene from the graphite interlayer compound; (S140) Centrifuge and filter the exfoliated graphene