Bezel free design of organic light emitting diode display via a‐InGaZnO gate driver circuit integration within active array

Author(s):  
Kyung Min Kim ◽  
Inhyo Han ◽  
Seok Noh ◽  
Young In Jang ◽  
Kilhwan Oh ◽  
...  



2003 ◽  
Vol 769 ◽  
Author(s):  
Arokia Nathan ◽  
Denis Striakhilev ◽  
Peyman Servati ◽  
Kapil Sakariya ◽  
Anil Kumar ◽  
...  

AbstractThis paper presents the first demonstration of amorphous silicon (a-Si:H) thin film transistor (TFT) circuit integration on plastic substrates. The circuits compensate for material shortcomings such as metastable threshold voltage (VT) shift and high contact resistance, to supply stable and predictable currents to drive organic light emitting diode (OLED) displays on plastic. Various drive circuits were fabricated and tested. The simplest pixel driver circuit possible is the two TFT voltage-programmed circuit, which is very susceptible to any shift in VT of the drive TFT. To overcome this problem, we have developed current-programmed pixel circuits based on the current mirror circuit family, which include the simple and cascode current mirrors. The OLED current in these circuits is virtually independent of any VT shift or mobility variation in the drive TFT. Results show that the circuits provide higher linearity and dynamic range than currently available pixel circuits while minimizing the pixel area.



2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Jianping Zou ◽  
Kang Zhang ◽  
Jingqi Li ◽  
Yongbiao Zhao ◽  
Yilei Wang ◽  
...  


2015 ◽  
Vol 2015 ◽  
pp. 1-5
Author(s):  
Said Saad ◽  
Lotfi Hassine

A new proposed compensation driver circuit of flat-panel display (FPD) based on organic light emitting diodes (OLEDs) and on poly-crystalline silicon thin-film transistors (poly-Si TFTs) is presented. This driver circuit is developed for an active-matrix organic light-emitting-diode (AMOLED) display and its efficiency is verified compared with the conventional configuration with 2 TFTs. According to results, this circuit is suitable to achieve acceptable level for power consumption, high contrast, maximum gray levels, and better brightness. And, to show this, a stable driving scheme is developed for circuit with much compensation such as against the data degradation, the threshold voltage dispersions of TFT drive, and suppression of TFT leakage current effect.



2018 ◽  
Vol 4 (11) ◽  
pp. 1800251 ◽  
Author(s):  
Youngjun Woo ◽  
Woonggi Hong ◽  
Sang Yoon Yang ◽  
Ho Jin Kim ◽  
Jun‐Hwe Cha ◽  
...  


2012 ◽  
Vol 132 (2) ◽  
pp. 77-80
Author(s):  
Hajime YAMAGUCHI ◽  
Kentaro MIURA ◽  
Tomomasa UEDA


PIERS Online ◽  
2007 ◽  
Vol 3 (6) ◽  
pp. 821-824 ◽  
Author(s):  
Chien-Chang Tseng ◽  
Liang-Wen Ji ◽  
Yu Sheng Tsai ◽  
Fuh-Shyang Juang


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