Thin film transistors for active-matrix LCDs

2019 ◽  
pp. 255-270
Author(s):  
Mutsumi Kimura
Keyword(s):  
Thin Film ◽  
Thin Film Transistors ◽  
Active Matrix

Flexible and Transparent Thin-Film Transistors Based on Two-Dimensional Materials for Active-Matrix Display

2020 ◽  
Vol 12 (4) ◽  
pp. 4749-4754 ◽  
Author(s):  
Hamin Park ◽  
Dong Sik Oh ◽  
Khang June Lee ◽  
Dae Yool Jung ◽  
Seunghee Lee ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Film Transistors ◽  
Two Dimensional ◽  
Active Matrix ◽  
Two Dimensional Materials

scholarly journals An AMOLED Pixel Circuit Based on LTPS Thin-film Transistors with Mono-Type Scanning Driving

Electronics ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 574
Author(s):  
Jianyuan Ke ◽  
Lianwen Deng ◽  
Liying Zhen ◽  
Qing Wu ◽  
Congwei Liao ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Film Transistors ◽  
Light Emitting Diode ◽  
Monte Carlo Analysis ◽  
Internal Resistance ◽  
Silicon Thin Film ◽  
Active Matrix ◽  
Ir Drop ◽  
Control Functions ◽  
Pixel Circuit

Using low-temperature poly-silicon thin-film transistors (LTPS TFTs) as a basis, a pixel circuit for an active matrix organic light-emitting diode (AMOLED) with narrow bezel displays was developed. The pixel circuit features mono-type scanning signals, elimination of static power lines, and pixel-integrated emitting control functions. Therefore, gate driver circuits of the display bezel can be simplified efficiently. In addition, the pixel circuit has a high-resolution design due to an increase of the pulse width of the scan signal to extend the threshold voltage and internal–resistance drop (IR drop) detection period. Further, regarding the influences of process–voltage–temperature (PVT) variation in the pixel circuit, comparison investigations were carried out with the proposed circuit and other pixel circuits with mono-type scanning signals using Monte Carlo analysis. The feasibility of the proposed pixel circuit is well demonstrated, as the current variations can be reduced to 2.1% for the supplied power reduced from 5 V to 3 V due to IR drop, and the current variation is as low as 10.6% with operating temperatures from –40 degrees to 85 degrees.

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