21.2: Distinguished Paper: 55-inch OLED TV using InGaZnO TFTs with WRGB Pixel Design

21.2: Distinguished Paper: 55-inch OLED TV using InGaZnO TFTs with WRGB Pixel Design

In this paper, we suggest panel design schemes for large size OLED panel. With considerations on the reliability of oxide TFT, new pixel circuit is proposed to compensate threshold voltage shift of TFT and is designed in each WRGB sub‐pixel. Also, the panel design concept for improving power supplyi...

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Veröffentlicht in:SID International Symposium Digest of technical papers 2013-06, Vol.44 (1), p.243-246
Hauptverfasser: Nam, Woo-Jin, Shim, Jong-Sik, Shin, Hong-Jae, Kim, Jin-Mog, Ha, Woo-Suk, Park, Kwan-Ho, Kim, Hong-Gyu, Kim, Bum-Sik, Oh, Chang-Ho, Ahn, Byung-Chul, Kim, Bong-Chul, Cha, Soo-Youle
Format: Artikel
Sprache:eng
Schlagworte:
IGZO
OLED
Oxide TFT
Oxides
Panels
pixel circuit
Pixels
Semiconductor devices
Supplying
Television
Thin film transistors
threshold voltage
Voltage
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Zusammenfassung:In this paper, we suggest panel design schemes for large size OLED panel. With considerations on the reliability of oxide TFT, new pixel circuit is proposed to compensate threshold voltage shift of TFT and is designed in each WRGB sub‐pixel. Also, the panel design concept for improving power supplying is explained. Low resistivity Cu metal is used to allow large panel current with uniformly supplying power voltage. 55‐inch panel is successfully fabricated and demonstrated. Oxide TFT and white OLED with color layers are promising technologies for OLED TV.
ISSN:0097-966X
2168-0159
DOI:10.1002/j.2168-0159.2013.tb06190.x