ZHU Xiao-ke, LIANG Yi-qian, LIU Lin-lin etc. Optimal Design of Thin Film Transistor in Luminescent Film Deposition Technology[J]. Chinese Journal of Luminescence, 2020,41(1): 86-94
ZHU Xiao-ke, LIANG Yi-qian, LIU Lin-lin etc. Optimal Design of Thin Film Transistor in Luminescent Film Deposition Technology[J]. Chinese Journal of Luminescence, 2020,41(1): 86-94 DOI: 10.3788/fgxb20204101.0086.
Optimal Design of Thin Film Transistor in Luminescent Film Deposition Technology
In order to prepare high uniformity and large size high-definition RGB-OLED display terminals
we developed a new and low-cost color film deposition technology-thin film transistor(TFT) oriented film deposition technology
and studied the influence of width to length ratio of thin film transistor and gate voltage on the performance of electropolymerized luminescent film
to find the best preparation conditions. The electrochemical polymerization process of luminescent films on ITO pixels was controlled by TFT on AMOLED substrate with pixel size of 200 m200 m. Firstly
the properties of TFT with different width-length ratio were characterized
and then electrochemical polymerized films prepared with different width-length ratio under different grid pressure conditions were characterized and analyzed. The experimental results show that under the control of TFT with the same width to length ratio
the higher the gate pressure is applied
the thicker the prepared film is
and the better the luminescence effect is. Under the control of TFT with different width-length ratio
the higher the width-length ratio is
the thicker the polymer film is
and the better the luminescence effect is. TFT with a width length ratio of 50 m/10 m is the most suitable condition under large gate pressure. The results lay a good foundation for the application of electrochemical polymerization in AMOLED display.
关键词
电化学聚合有源矩阵有机电致发光显示薄膜晶体管
Keywords
electrochemical polymerizationactive matrix organic electroluminescent displaythin film transistor
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