해상도 논문번역

해상도 논문번역(한국어 원본)

AMOLED Development (AMOLED QVGA(240X320) 개발)

– 2.0”(QVGA)패널의 성능평가를 위한 Controller를 설계, 제작하고 화면평가를 하였습니다. 2TFT 및 6TFT의 화질보상능력을 하나의 테스트보드로 평가(ELA, Vth and so on)하기 위한 Switchable controller를 개발하였다.. 기존의 컨트롤러가 2TFT 또는 6TFT를 하나만 평가 할 수 있었으나 Switchable controller는 switch(Schottky Diode의 전위장벽(0.7v)특성을 이용해 사용)전환으로 2TFT 또는 6TFT를 평가할 수 있다.

– 2.0”(QVGA)의 module circuit를 가지고 2.2”의 module회로를 제작하였다. 설계변경에 따른 (구동전압 11V에서 10V변경 : 전력소모감소) Capacitance, Inductance 용량을 적절하게 분배하여 설계하였다.

       – 모듈화된 패널(panel) 평가를 수행하였다.

       암점,명점,패턴(pattern), mura등 화면이 적절하게 나오는지 확인을 하였다. 그리고 나서 보드(board)의 특성을 평가 하였다. 구동전압, 소비전력 등 보드의 전기적 특성을 평가하였다.

–    Driver IC 가혹조건시험 (Highly Accelerated Life Test Chamber)을 하였다.

        Driver IC Device(MAX8614)의 저온, 고온 고습 등 동작 Test를 하였다. 사용영역 온도범위(-40C~+40C)에서 적합성을 체크하기 위해 Chanmber에서 동작 후 이상 유무를 평가 하였다.

-일반적인 Display device는 두껍고, 제작비용이 비싸므로 얇고, 제조공정이 간단하여 값싸고, 외부충격에 강건한(robust) OLED display device를 설계하였다. 이 모듈은 강건(robust)구조 그리고 가격절감을 위해서 bezel을 날개 형태로 설계하였다. 이 설계로 인하여 강건구조뿐만 아니라 pol, 고정 테이프 등이 생략 되어서 가격이 절감되고, 이에 따라서 두께도 얇아져서 slim 구조가 되었다.

– 모듈화된 패널에 EMC Test를 수행하였다. EMC에서 ESD를 가하여 패널이 정상적으로 동작하는지 평가하였다.

ESD gun으로 패널에 일정량의 정전기(Electrostatic discharge)를 가하여(air condition:2,4,8,15kv , Contact condition:2,4,8kv) 패널의 정상적으로 동작하는지 평가 하였다.

해상도 논문번역(영어 번역본)

2. AMOLED Development (Development of AMOLED QVGA (240X320))

– A controller for performance assessment of 2.0” (QVGA) panel was designed and produced, followed by a screen assessment. A switchable controller for assessing the compensation ability of image quality of 2TFT and 6TFT with one unit of test board (ELA, Vth and so on) was developed. The existing controller was only capable of evaluating either 2TFT or 6TFT, but the newly designed switchable controller is capable of evaluating 2TFT or 6TFT using the switch (by utilizing the potential barrier characteristic of Schottky Diode) converter.

– 2.2” module circuit was produced with the 2.0” (QVGA) module circuit. Capacitance and inductance capacity from the design changes (driving voltage from 11V to 10V: reduction in power consumption) was appropriately distributed in the design.

       – Assessment was performance on the modularized panel.

       The screen quality including dim spot, bright spot, pattern and mura was verified, followed by the assessment on the characteristics of the board. The electrical characteristics of the board such as the driving voltage and the consumed power were evaluated.

–    Highly Accelerated Life Test Chamber was conducted on Driver IC.

        Motion tests under various conditions such as low temperature, high temperature and high humidity were conducted on Driver IC Device (MAX8614). For the purpose of verifying the appropriateness at the temperature range of the usage (-40C~+40), the device was closely observed for any malfunction after the movement in the Chamber.

– The generally used display device is very thick in width and its production cost is very high. For this reason, OLED display device that is made from a simple, low cost production process while being robust to external impact has been designed. This module was designed in a robust structure with bezel as wings for cost reduction. Such design has resulted not only in a robust structure but also in cost reduction with the omission of pol and fixation tape, which also led to thinner width for a slim structure.    

– EMC Test was performed on the modularized panel. The goal of the test was to verify if the panel operated normally with the application of ESD at EMC.

A fixed amount of electrostatic discharge was applied to the panel using the ESD gun (air condition: 2, 4, 8, 15kv, Contact condition: 2, 4, 8kv) to see if the panel operated normally.