A Driving Method of Pixel Circuit Using a-IGZO TFT for Suppression of Threshold Voltage Shift in AMLED Displays

2017 ◽  
Vol 38 (6) ◽  
pp. 760-762 ◽  
Author(s):  
Woo-Sul Shin ◽  
Hyun-A Ahn ◽  
Jun-Seok Na ◽  
Seong-Kwan Hong ◽  
Oh-Kyong Kwon ◽  
...  
Keyword(s):  
Threshold Voltage ◽  
Threshold Voltage Shift ◽  
Voltage Shift ◽  
Pixel Circuit ◽  
Igzo Tft

scholarly journals Negative threshold voltage shift in an a-IGZO thin film transistor under X-ray irradiation

RSC Advances ◽  
2019 ◽  
Vol 9 (36) ◽  
pp. 20865-20870 ◽  
Author(s):  
Dong-Gyu Kim ◽  
Jong-Un Kim ◽  
Jun-Sun Lee ◽  
Kwon-Shik Park ◽  
Youn-Gyoung Chang ◽  
...  
Keyword(s):  
Thin Film ◽  
Threshold Voltage ◽  
Thin Film Transistor ◽  
Threshold Voltage Shift ◽  
Voltage Shift ◽  
Hydrogen Incorporation ◽  
X Ray ◽  
Spectroscopic Analyses ◽  
Bottom Gate ◽  
Igzo Tft

We studied the effect of X-ray irradiation on the negative threshold voltage shift of bottom-gate a-IGZO TFT. Based on spectroscopic analyses, we found that this behavior was caused by hydrogen incorporation and oxygen vacancy ionization.

scholarly journals LTPS-TFT Pixel Circuit Compensating for TFT Threshold Voltage Shift and IR-Drop on the Power Line for AMOLED Displays

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Ching-Lin Fan ◽  
Min-Chi Shang ◽  
Wei-Chun Lin ◽  
Hsiu-Chen Chang ◽  
Kuang-Chi Chao ◽  
...  
Keyword(s):  
Threshold Voltage ◽  
Power Line ◽  
Threshold Voltage Shift ◽  
Voltage Shift ◽  
Ir Drop ◽  
Pixel Circuit

46.2: New OLED Pixel Circuit and Driving Method to Suppress Threshold Voltage Shift of a-Si:H TFT

2006 ◽  
Vol 37 (1) ◽  
pp. 1547 ◽  
Author(s):  
Taro Hasumi ◽  
Shinji Takasugi ◽  
Keigo Kanoh ◽  
Yoshinao Kobayashi
Keyword(s):  
Threshold Voltage ◽  
Threshold Voltage Shift ◽  
Voltage Shift ◽  
Pixel Circuit

Highly Reliable a-IGZO TFT Gate Driver Circuit to Suppress Threshold Voltage Shift of Pull-down TFT

2019 ◽  
pp. 1520
Author(s):  
Jungwoo Lee ◽  
Jongsu Oh ◽  
Eun Kyo Jung ◽  
KeeChan Park ◽  
Jae-Hong Jeon ◽  
...  
Keyword(s):  
Threshold Voltage ◽  
Threshold Voltage Shift ◽  
Voltage Shift ◽  
Driver Circuit ◽  
Gate Driver ◽  
Igzo Tft

Design of the Pixel and Row Driving Circuits Using IGZO TFT for QVGA AMOLED

2013 ◽  
Vol 380-384 ◽  
pp. 3073-3076
Author(s):  
Chun Cheng Yang ◽  
Xin Chen ◽  
Jian Zhang ◽  
Chuan Nan Li
Keyword(s):  
Threshold Voltage ◽  
Circuit Simulation ◽  
Threshold Voltage Shift ◽  
Voltage Shift ◽  
Driving Circuit ◽  
Igzo Tft

An Amorphous IGZO (a-IGZO) TFTs pixel driving circuit and row driving circuit for AMOLED are proposed. The pixel driving circuit is composed of four a-IGZO TFTs and one capacitor (4T-1C), which effectively compensates the threshold-voltage-shift (ΔVth1V) of the drive TFT, and shift registers, NAND gates and inverters constitute the row driving circuit. To verify the effect of the proposed circuit, simulation using H-spice was performed, and results prove that the presented circuit can be applied to monochromatic 2-inches QVGA AMOLED.

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