Tohru Tamura

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SUMMARY This report describes a quantification method for lumi-nance non-uniformity of a large LED backlight. In experiments described herein, participants subjectively evaluated artificial indistinct Mura images that simulated luminance non-uniformity of an LED backlight. We measured the luminance distribution of the Mura images. Then, the measured(More)
A method of automated measurement of the EOG amplitude is described. Its main advantages are as follows: 1. The mean of amplitudes, at a series of time dots within a single EOG deflection recorded with DC-amplification, are automatically measured and printed out. 2. Artifacts due to blinks, overshoots or other irregular eye movements are automatically(More)
SUMMARY We developed a quantitative evaluation method for lumi-nance and color uniformity on a display screen. In this paper, we report the analysis result of a viewer perception of luminance and color uniformity. In experiments, observers subjectively evaluated Mura images which were showed on the light emitting diode (LED) backlight screen by adjusting(More)
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