Date
Place
- Room C (Room 323)
- 50. Display Panel Driving Circuit
- August 21, 2015 (Friday)
- 11:00 ~ 12:20
- [50-3]
- 11:40 ~ 11:55
- Title:DC-Type Output Driving Scheme for Low Power LTPS TFT Gate Driver Circuit
- Seok-Jeong Song, Byung Hoon Kim, and Hyoungsik Nam (Kyung Hee Univ., Korea)
Abstract: This paper demonstrates a low power DC-type low temperature poly-Si (LTPS) thin-film transistor (TFT) shift register that consists of nine TFTs and one bootstrapping capacitor. The proposed circuit connects large size pull-up TFTs of output drivers to positive supply instead of alternating clock signals in order to reduce substantially the power consumption of clock drivers [1-2]. The SPICE simulation ensures that the variable overlap intervals can be programmed by the delay between clock signals and the overall power consumption of a DC-type circuit can be reduced to 45 % of an AC-type one for a full-HD display. The operation of a proposed structure is also verified with a fabricated 16-stage gate driver.
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