Effect of test patterns on measurement of the luminance of LCD devices by use of a telescopic-type luminance meter

被引：2

作者：

Morishita, Junji ^{[1
]}

Dogomori, Kiyoshi ^{[2
]}

Hatanaka, Shiro ^{[3
]}

Hiwasa, Takeshi ^{[3
]}

Nakamura, Yasuhiko ^{[4
]}

Hashimoto, Noriyuki ^{[5
]}

Higashida, Yoshiharu ^{[1
]}

Toyofuku, Fukai ^{[1
]}

Ohki, Masafumi ^{[1
]}

机构：

[1] Kyushu Univ, Fac Med, Dept Hlth Sci, Higashi Ku, 3-1-1 Maidashi, Fukuoka 8128582, Japan

[2] Saga Univ Hosp, Dept Radiol, Saga 8498501, Japan

[3] Kyushu Univ, Grad Sch Med, Dept Hlth Sci, Higashi Ku, Fukuoka 8128582, Japan

[4] Kyushu Univ Hosp, Dept Radiol, Fukuoka 8128582, Japan

[5] Eizo Nanao Corp, Haku San, Ishikawa 9248566, Japan

来源：

RADIOLOGICAL PHYSICS AND TECHNOLOGY | 2008年 / 1卷 / 01期

基金：

日本科学技术振兴机构;

关键词：

Liquid-crystal display; Luminance; Telescopic-type luminance meter; Quality assurance;

D O I：

10.1007/s12194-007-0011-0

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

Quality assurance of electronic display devices is important for maintaining reliable soft-copy image interpretations. This paper presents effects of test patterns on measurement of the luminance of liquid-crystal display (LCD) devices by use of a telescopic-type luminance meter. The luminance for different types of test patterns having different backgrounds and measurement areas was measured and compared with the results obtained with AAPM task group-18 (TG-18) LN test patterns. The luminance measured for the test patterns with a black background was lower than that measured for TG-18 LN test patterns due to the light emitted from the outside the focused area of the telescopic-type luminance meter. Also, the luminance obtained with smaller measurement areas indicated lower luminance. These tendencies were particularly obvious at low luminance. The luminance of the LCD device by use of a telescopic-type luminance meter should be measured with test patterns that have a black background and a smaller measurement area than that for the TG-18 LN test patterns.

引用

页码：95 / 99

页数：5

共 12 条

[1] [Anonymous], 03 AAPM
[2] [Anonymous], DIN686857
[3] Digital Imaging and Communications in Medicine (DICOM), DIGITAL IMAGING COMM
[4] Hashimoto Noriyuki, 2003, Nihon Hoshasen Gijutsu Gakkai Zasshi, V59, P21
[5] Hashimoto Noriyuki, 2002, Nihon Hoshasen Gijutsu Gakkai Zasshi, V58, P1297
[6] IEC 61223-2-5, 1994, 61223251994 IEC
[7] JESRA X-0093-2005 Quality assurance (QA), 2005, JESRA X 0093 2005 QU
[8] JIS Z, Z47521 JIS
[9] JIS Z, Z475225 JIS
[10] Kimura Naohiro, 2004, Nihon Hoshasen Gijutsu Gakkai Zasshi, V60, P1361

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