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P.130: A Measurement‐Based Time and Frequency Domain Analysis of the LCD VCOM Noise
Author(s) -
Yeo DongHee,
Lee JaeSeung,
Sim JaeYoon,
Park HongJune
Publication year - 2013
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/j.2168-0159.2013.tb06533.x
Subject(s) - noise (video) , liquid crystal display , time domain , waveform , frequency domain , voltage , electrical engineering , physics , electronic engineering , computer science , optoelectronics , engineering , artificial intelligence , image (mathematics) , computer vision
A quantitative analysis on the LCD VCOM noise shows that the primary and secondary noise sources are the gate and data driver signals, respectively. The time‐domain waveform and the frequency spectrum are measured directly from the LCD VCOM node voltage and indirectly from the charge amp output of touch sensor.