Title :
Pentacene TFT driven AM OLED displays
Author :
Zhou, Lisong ; Park, Sungkyu ; Bai, Bo ; Sun, Jie ; Wu, Sheng-Chu ; Jackson, Thomas N. ; Nelson, Shelby ; Freeman, Diane ; Hong, Yongtaek
Author_Institution :
Dept. of Electr. Eng., Pennsylvania State Univ., University Park, PA, USA
Abstract :
Pentacene organic thin-film transistors (TFTs)-driven active matrix organic light-emitting diode (OLED) displays has been investigated. This letter addresses several process issues unique to this type of display which are important in achieving bright and uniform displays. A bottom contact structure was used to fabricate the pentacene TFT backplane. Polyvinyl alcohol and parylene were used to isolate the pentacene active layer and passivate the backplane. The low processing temperature may allow the use of polymeric substrates and lower cost processing. Uniform TFT performance is achieved with reasonably good mobility and on/off ratio on the backplane. The initial OLED display performance is also presented.
Keywords :
display devices; organic light emitting diodes; thin film transistors; AM OLED display; active matrix organic light-emitting diode; bottom contact structure; parylene; pentacene TFT; pentacene active layer isolation; pentacene organic thin-film transistor; polymeric substrate; polyvinyl alcohol; Active matrix organic light emitting diodes; Backplanes; Costs; Flat panel displays; Organic light emitting diodes; Organic thin film transistors; Pentacene; Substrates; Temperature; Thin film transistors; Active-matrix organic light-emitting diode (AM OLED) display; pentacene; thin-film transistors (TFTs);
Journal_Title :
Electron Device Letters, IEEE
DOI :
10.1109/LED.2005.853654
