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P‐25: Phenomenon of Periodic Cross Striation for Common Electrode Voltage Distortion
Author(s) -
Xin-mao Qiu,
Yao Liu,
Rong Wu,
Hong-jiang Wu,
Bao-qiang Wang,
Xiang-nan Yun,
Xi Chen,
Hong-tao Lin
Publication year - 2019
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/sdtp.13174
Subject(s) - distortion (music) , striation , capacitance , signal (programming language) , materials science , voltage , electrical engineering , total harmonic distortion , electrode , acoustics , physics , optoelectronics , computer science , engineering , composite material , amplifier , cmos , quantum mechanics , programming language
The phenomenon of periodic cross striation of GOA products is discovered as well as the mechanism and influencing factors are studied. Common electrode voltage (Vcom) distortion caused by the same period of CLKs affects the pixel holding voltage. CLK signal as a low frequency AC signal is transmitted to Feed through capacitances (common electrode is CF BM), and then Feed signal has distortion with period as CLK. The Vcom distortion comes from the reverse and amplified Feed distortion by compensators. By reducing the capacitance square (reducing CF BM area and/or Feed line length), the influence of CLK signal on Feed is decreased. By reducing the capacitance permittivity through changing the position and width of Sealant, the signal coupling between CLK and Feed is effectively diminished.