The Study for the Fabrication of Organic Electroluminescent Displays

• Main Authors: Ping-Shiang Lei, 雷平祥
• Other Authors: Yih Chang
• Format: Others
• Language: zh-TW
• Published: 1999
• Online Access: http://ndltd.ncl.edu.tw/handle/31932112651304913975

碩士 === 中正理工學院 === 兵器系統工程研究所 === 87 === ABSTRACT The development of the Organic Electroluminescent Devices is practically commericalized so far. Both sublimed films of “Small molecules”and solution-processed polymer films have been developed. Since OLED device have many advantages including small volume, low operation voltage, radiation free, wide viewing angle, high brightness, high contrast ratio, rapid response time and simple fabrication process, it will become one of the major displays in the furture. The progress made in the development of organic light-emitting devices will be reviewed in this study, the light-emission mechanism will be outlined also. In addition, we’ve setup a pilot-line to simulate the so called “mass production” procedure of the organic EL devices in our laboratory. The structure of the polymer OLED is glass/ITO/MEH-PPV/LiF/Al, the small-molecular OLED’s is glass/ITO/HIL/HTL/Alq3/LiF/Al. We used the instruments such as SEM, AFM, contact angle measurement, interferometer, four-point probe and B-I-V meter to analyze the performance and characteristics of OLED devices in this experiment. The performance of this device was shown as follows, the strating voltage is 3.2V, the peak brightness is 2,470 cd/m2（at 10 V）, and the luminous efficiency is 3.14 lm/W.