TY - JOUR
T1 - Design of bidirectional and highly stable integrated hydrogenated amorphous silicon gate driver circuits
AU - Lin, Chih Lung
AU - Tu, Chun Da
AU - Chuang, Min Chin
AU - Yu, Jian Shen
N1 - Funding Information:
Manuscript received April 16, 2010; revised August 11, 2010; accepted September 22, 2010. Date of current version January 19, 2011. This work was supported by the National Science Council of the Republic of China, Taiwan, under Contract NSC 96-2221-E-006-131-MY3. C.-L. Lin, C.-D. Tu and M.-C. Chuang are with the Department of Electrical Engineering, National Cheng Kung University, Tainan 70101, Taiwan (e-mail: [email protected]). J.-S. Yu is with the AUO Technology Center, AU Optronics Corporation, Hsinchu Science Park, Hsinchu 30078, Taiwan Color versions of one or more of the figures are available online at http:// ieeexplore.ieee.org. Digital Object Identifier 10.1109/JDT.2010.2085077
PY - 2011
Y1 - 2011
N2 - Based on the use of a standard five-mask process, this work presents a new integrated hydrogenated amorphous silicon thin-film transistor (a-Si:H TFT) gate driver circuit for large size TFT-LCD applications, composed of a pull-up circuit with three TFTs, a pull-down circuit with ten TFTs, and two capacitors. The pull-up circuit, which separates the row line from the carry signal, prevents distortion of the output pulse. Moreover, the pull-down circuit with the AC-driving method can reduce the threshold voltage shift (VTH shift) to stabilize the output voltage and suppress the fluctuation of the row line, subsequently increasing the operating lifetime. According to accelerated lifetime test results, this gate driver circuit operates stably over 240 hours at 100°C. Additionally, the scan direction of the proposed circuit can be modified using two control signals and applied to the reversal display of an image.
AB - Based on the use of a standard five-mask process, this work presents a new integrated hydrogenated amorphous silicon thin-film transistor (a-Si:H TFT) gate driver circuit for large size TFT-LCD applications, composed of a pull-up circuit with three TFTs, a pull-down circuit with ten TFTs, and two capacitors. The pull-up circuit, which separates the row line from the carry signal, prevents distortion of the output pulse. Moreover, the pull-down circuit with the AC-driving method can reduce the threshold voltage shift (VTH shift) to stabilize the output voltage and suppress the fluctuation of the row line, subsequently increasing the operating lifetime. According to accelerated lifetime test results, this gate driver circuit operates stably over 240 hours at 100°C. Additionally, the scan direction of the proposed circuit can be modified using two control signals and applied to the reversal display of an image.
UR - http://www.scopus.com/inward/record.url?scp=79551660448&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79551660448&partnerID=8YFLogxK
U2 - 10.1109/JDT.2010.2085077
DO - 10.1109/JDT.2010.2085077
M3 - Article
AN - SCOPUS:79551660448
SN - 1551-319X
VL - 7
SP - 10
EP - 18
JO - IEEE/OSA Journal of Display Technology
JF - IEEE/OSA Journal of Display Technology
IS - 1
M1 - 5688130
ER -