Hai-peng ZHU, Hai-long WU, Yi DAN, et al. TFT-LCD flicker influence factors and quantitative analysis method[J]. Chinese journal of liquid crystals and displays, 2019, 34(12): 1172-1181.
DOI:
Hai-peng ZHU, Hai-long WU, Yi DAN, et al. TFT-LCD flicker influence factors and quantitative analysis method[J]. Chinese journal of liquid crystals and displays, 2019, 34(12): 1172-1181. DOI: 10.3788/YJYXS20193412.1172.
TFT-LCD flicker influence factors and quantitative analysis method
Flicker is an important index of TFT-LCD image quality evaluation. Based on the mechanism of Δ
V
p
and flicker
the influence of
V
com
on flicker is studied
and the experiment results show that
V
com
has a significant impact on flicker. With the increase of flicker gray level
the optimum flicker tends to decrease gradually and its corresponding
V
com
for TN mode products decreases gradually
while ADS mode products increases gradually. Secondly
the article studied The impact of
V
GH
and
V
GL
on flicker is stadied
the results indicate that
V
GH
and
V
GL
have important impact on flicker. When flicker gray level is invariable
the
V
GH
increase will not affect the optimal flicker
but the corresponding
V
com
decreases gradually. While the
V
GL
increase the optimal flicker decreases gradually
but the corresponding V
com
increases gradually. A quantitative analysis method is proposed for predicting flicker scales of different gray level and proved that it can be used to predict the flicker scale of different gray level
because the calculated flicker is consistent with measurement flicker value by FMA test method under VESA standard
and the linear correlation coefficients are above 0.95 for both TN mode and ADS mode products. These studies provide analytical methods and solutions for improving TFT-LCD flicker problem.
关键词
Keywords
references
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