著者

長嶺 邦彦 冨岡 聡 政倉 祐子 田村 徹 植田 充紀 新福 吉秀

出版者

一般社団法人 映像情報メディア学会

雑誌

映像情報メディア学会誌 (ISSN:13426907)

巻号頁・発行日

vol.64, no.7, pp.1012-1015, 2010-07-01 (Released:2010-10-01)

参考文献数

8

被引用文献数

1

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As the mura of a large LED backlight are caused by various factors such as the strength and wavelength of the light emission, light distribution of the individual LED and its structure design, both complicated mura shapes and the affect of hue need to be considered in order to evaluate the white uniformity of an LED backlight. There are no quantitative results showing the relations between human perception and uneven colored characteristic. To quantify the human perception of white uniformity, we used a 40-inch LED backlight to subjectively evaluate white uniformity and found the relation between human perception and physical characteristics from the measurements.

著者

長嶺 邦彦 冨岡 聡 政倉 祐子 田村 徹 植田 充紀 新福 吉秀

出版者

一般社団法人 映像情報メディア学会

雑誌

映像情報メディア学会冬季大会講演予稿集 2009 (ISSN:13434357)

巻号頁・発行日

pp._6-10-1_, 2009-11-27 (Released:2017-06-05)

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We conducted the subjectivity evaluation experiment for the "Color Uniformity" with 40 inches LED backlight, and subjectivity evaluation value got a result to rise so that an area and the chroma of the uneven coloring were large. Furthermore, we studied the techniques to extract the indexes considered the hue influence.