• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2009년도 9th International Meeting on Information Display
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• pp.1483-1485
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• 2009

Silicon dioxide ($SiO_2$) thin films were deposited using a modified DBD called a "pin-to-plate-type DBD" in order to generate high-density plasmas with a gas mixture of PDMS/$O_2$. The effect of the gas mixture on the physical and chemical properties of $SiO_2$ deposited by the pin-to-plate-type DBD with the mixture of PDMS/$O_2$ was investigated.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2009년도 9th International Meeting on Information Display
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• pp.904-906
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• 2009

Organic field-effect transistor (OFET) memory is an emerging device for its potential to realize light-weight, low cost flexible charge storage media. Here we report on a solution-processed poly[9,9-dioctylfluorenyl-2,7-diyl]-co-(bithiophene)] (F8T2) nano floating-gate memory (NFGM) with top-gate/bottom-contact device configuration. A reversible shift in the threshold voltage ($V_{Th}$) and the reliable memory characteristics were achieved by incorporation of thin Au nanoparticles (NPs) as charge storage sites for negative electrons at the interface between polystyrene and cross-linked poly(4-vinylphenol).

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2009년도 9th International Meeting on Information Display
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• pp.142-144
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• 2009

We demonstrated narrow and good aspect-ratio inkjet-printed silver lines with multi-time over-printing methods. By using this strategy, narrow silver lines were obtained with 200 nm thickness and their width and gap between printed lines of uniform narrow silver lines were 30 ${\mu}m$ and 17 ${\mu}m$, respectively. It also had good conductivity, sheet resistacne of 0.36 ${\Omega}/{\square}$ and specific resistance of $8{\mu}{\Omega}{\cdot}cm$. In current stress test, narrow silver line with 30 ${\mu}m$ width was able to a current flow up to 50 mA (2.1A/$cm^2$). Using surface treatment on poly-arylate substrate with $UVO_3$, we obtained clean-edge narrow line without any edge waviness.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2009년도 9th International Meeting on Information Display
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• pp.868-870
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• 2009

Here we report another soft lithography, peel-off method, for patterning conductive polymer anodes in the fabrication of flexible ITO-free organic light-emitting diodes. This method doesn't require any heating process and UV light. We have demonstrated that such a peel-off technique enables the formation of a very sharp edge and the enhancement of edge roughness.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권1호
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• pp.267-270
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• 2007

Organic thin-film transistors (OTFTs) using organic semiconductors as an active layer are of interest for their use in low-cost, lightweight and flexible electronic products. Although the field-effect mobility of OTFTs is still lower than those of inorganic thin-film transistor, the advantages of easy manufacturing and processing make them suitable for selected applications. In this paper, we report the syntheses and characterization of new p-type OTFT materials.

• Electronics and Telecommunications Trends
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• 제23권5호
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• pp.111-123
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• 2008

플렉시블 기판은 플렉시블 디스플레이의 공정성, 성능, 신뢰성, 가격을 결정하는 가장 중요한 부품으로서 산업적인 주목을 받고 있다. 플렉시블 기판 중에서는 플라스틱이 가공의 용이성, 저중량, 연속공정의 적합성으로 인해 적용이 광범위하게 검토되고 있지만, 광학용 기판으로서는 많은 소재적/공정적 문제점을 안고 있다. 이를 해결하기 위해 플라스틱 기판의 특성(주로 열적 안정성)을 향상시키거나, 플라스틱 기판에 적합한 저온 형성용 유/무기 소재 및 공정을 개발하는 연구가 많이 진행되고 있으나, 수요 업체의 요구수준에는 미치지 못하고 있다. 본 자료에서는 디스플레이용 기판으로서 플라스틱의 문제점을 살펴보고 이를 개선하기 위한 최근의 소재 및 수요 업체의 동향을 알아 본다.

• Journal of Institute of Control, Robotics and Systems
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• 제16권2호
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• pp.172-176
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• 2010

Recently, LCD (Liquid Crystal Display) requires various technical challenges; high definition, high quality, big size, and low price. These demands more pixels in the fixed area of the LCD and very fine lead pitch of the driving IC which controls the pixels. Therefore, a new packaging technology is needed to meet such technical requirement. NCP (Non Conductive Paste) is one of the new packaging methods and has excellent characteristics to overcome the problems of the ACF (Anisotropic Conductive Film). In this paper, we analyzed the process of the NCP for COF (Chip on FPCB) and proposed the key design parameters of the NCP process. Through a series of experiments, we obtained the stable values of the design parameters for successful NCP process.

• Proceedings of the Materials Research Society of Korea Conference
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• 한국재료학회 2009년도 춘계학술발표대회
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• pp.11.2-11.2
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• 2009

본 발표에서는 flexible display의 back plane 구동 소자, organic sensor, 그리고 organic radio frequency identification (RFID) Tag 등으로의 응용을 목표로 최근 활발히 연구 중인 유기 반도체 박막 트랜지스터에 대한 소개를 바탕으로 유기 반도체를 전자회로 분야에서 사용하기 위해 해결해야 할 문제점과 연구 개발이 절실히 필요한 부분에 대해 소개하고 자 함. organic RFID 응용 기술에 초점을 두고 RFID 기술의 개요, 종류, 주파수 대역 등에 대한 기초적인 지식을 바탕으로 organic RFID의 향후 시장 전망에 대해 토론한 후 현재 PolyIC, Organic ID, IMEC 등의 선진사에서 상용화를 목표로 활발히 연구 중인 organic RFID의 세계적 기술 수준과 최근 연구 결과들을 공유하고자함. 최근 ETRI에서 향 후 바코드 대체용으로 활발히 연구 중인 item level tagging용 13.56 MHz프린팅 RFID 기술을 소개하고 이를 구현하기 위한 유기반도체 트랜지스터, 정류기 등 다양한 종류의 회로들을 프린팅 소재와 공정으로 제작할 때의 문제점을 공유하고, 더 나아가 프린팅 전자 소자의 상용화를 위한 향 후 연구 개발 주제 및 방향 등에 대해 토론하고자함.

• International Journal of Fuzzy Logic and Intelligent Systems
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• 제8권2호
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• pp.100-104
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• 2008

In this paper, intelligent filtering methodology for masterarm translation signal is proposed. Fidelity and stability are contradicting factors in teleoperation. Human hand trembling filtering is one of the problems in telemanipulation field. During every operation the hand has a certain vibration that can affect the quality of teleoperation, especially in carrying FPD (Flat Panel for Display), nanomanipuation and other precise tasks. It is very important to study the kinesthetic perception of the human and to optimize the teleoperation system accordingly. To cancel out the influence of human's hand vibration the signal from the masterarm should be filtered. One of the feasible solutions is to use an intelligent filter based on fuzzy logic, which is a very flexible instrument. Applying intelligent filtering methodology, we can use some heuristic methods to solve the filtering problem.

• Proceedings of the Korean Institute of Interior Design Conference
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• 한국실내디자인학회 2007년도 추계학술발표대회 논문집
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• pp.191-192
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• 2007

This design plan aims at the designing of the pharmacy counter as the space in which the two inter-related elements of the pharmacy, for example, the pharmacist and the customers, selling medicines and transmitting health informations, etc. keep in contact with each other. To create an ambience of intercommunication for health care and relaxation, it must be set up the basic concepts like Functionality, Flexibility, Transparence and Material-Change. As the design solutions : - first of all the long counter must be divided into the independent places with character and function. - in accordance with the basic concepts functionality and flexibility each small counter must represent a one's own form language that is determined according to a given function and also open and flexible to the change of the situation. - the various kinds of display module are introduced to bring out the functionality and the aestheticity simultaneously. - to make a contrasting image to each other various materials are arranged on and around the counters.