P.7: New Pixel Structure with High G-to-G Response Time for Large Size and High Resolution OLED TVs

In this work, we investigate gray to gray response time degradation of AMOLED display and design AMOLED pixel to improve gray to gray response time. The pixel designed here is that compensation method is source‐follow type instead of diode connection. By using source‐follow, we proposed new AMOLED p...

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Bibliographic Details
Published in:SID International Symposium Digest of technical papers 2013-06, Vol.44 (1), p.1010-1013
Main Authors: Yoon, Joong-Sun, Kang, Byoung-Wook, Shin, Hong-Jae, Kim, Bum-Sik, Oh, Chang-Ho, Ahn, Byung-Chul
Format: Article
Language:English
Subjects:
Active matrix displays
AMOLED
Brightness Shortage and Brightness Drop
Compensation
Diode Connection
Diodes
Gray to Gray Response Time
IGZO
IR-Drop
Joints
LTPS
Organic light emitting diodes
Pixels
Response time
Source Follow
Television
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Summary:In this work, we investigate gray to gray response time degradation of AMOLED display and design AMOLED pixel to improve gray to gray response time. The pixel designed here is that compensation method is source‐follow type instead of diode connection. By using source‐follow, we proposed new AMOLED pixel structure and fabricated 31_inch OLED TV that achieved good Gray‐to‐Gray response time with 0.043 millisecond levels through improvement of bright shortage and brightness drop. Compare to the previously compensation method using diode connection, Gray‐to‐Gray response time is decreased extremely. Therefore, this pixel structure was very suitable for frame rate, large size and high resolution OLED TV application.
ISSN:0097-966X
2168-0159
DOI:10.1002/j.2168-0159.2013.tb06393.x