5‐2: Gate Driver Circuits for Internal Compensation Type OLED Display with High Mobility Oxide TFT

5‐2: Gate Driver Circuits for Internal Compensation Type OLED Display with High Mobility Oxide TFT

The self‐compensating pixel circuit and the gate driver are fabricated with high mobility (~50cm2/Vs) oxide TFTs. In order to improve operating margin against negative shift of Vth in GIP circuit, the circuit utilizes two low‐voltage‐level signals. Also, the design of the EM driver to be controlled...

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Veröffentlicht in:SID International Symposium Digest of technical papers 2018-05, Vol.49 (1), p.40-43
Hauptverfasser: Kim, Dae Hwan, Koo, Hyung Joon, Kang, Min-Gu, Chun, Kwang Il, Choi, Uyhyun, Ko, Younghyun, Jeon, Jeyong, Jeong, ChanYong, Jang, Yong Ho, Bae, Jong Uk, Park, Kwon-shik, Yoon, Soo Young, Kang, In Byeong
Format: Artikel
Sprache:eng
Schlagworte:
Circuit design
Diodes
Driver circuits
Electric potential
Gates (circuits)
GIP
High mobility
Internal compensation
Organic light emitting diodes
Oxide TFT
Substrates
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Zusammenfassung:The self‐compensating pixel circuit and the gate driver are fabricated with high mobility (~50cm2/Vs) oxide TFTs. In order to improve operating margin against negative shift of Vth in GIP circuit, the circuit utilizes two low‐voltage‐level signals. Also, the design of the EM driver to be controlled by the scan driver reduces the bezel size. Our 5.5‐in. FHD OLED display panel on PI substrate shows good uniformity and long‐term stability with saturation behavior of clamping voltage in GIP circuit under operation at 60°C for over 1,000 hours.
ISSN:0097-966X
2168-0159
DOI:10.1002/sdtp.12486