GOA circuit for LTPS-TFT
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United States of America Patent
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Mar 13, 2018
Issued Date -
N/A
app pub date -
Jan 28, 2016
filing date -
Dec 17, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The invention provides a GOA circuit for LTPS-TFT, by adding the twelfth and thirteenth TFTs (T12, T13) controlled by output ends (G(n−1), G(n+1)) of (n−1)-th and (n+1)-th GOA units, the drain of twelfth TFT T12 connected through the fourth node (W1(n)) to source of first TFT (T1), the drain of first TFT (T1) connected to output end of (n−1)-th GOA unit, the drain of thirteenth TFT (T13) connected through the fifth node W2(n) to source of third TFT (T3), the drain of third TFT (T3) connected to output end of (n+1)-th GOA unit; the first and third TFTs (T1, T3) controlled respectively by the forward and backward scan DC control signals (U2D, D2U) to reduce leakage of twelfth TFT (T12) in forward scanning and leakage of thirteenth TFT (T13) in backward scanning. As such, the leakage in key TFTs is reduced and GOA circuit stability is improved.
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Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- G09G Class
- 23.29 % this patent is cited more than
- 7 Age
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| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Sep 13, 2025 |
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