Effect of ambient lighting on liquid-crystal displays with different types of surface treatment

Michinobu Matsuyama, Junji Morishita, Hiroshi Akamine, Shogo Tokurei, Hidetake Yabuuchi, Yasuhiko Nakamura, Noriyuki Hashimoto, Masafumi Ohki

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Liquid-crystal displays (LCDs) with different types of surface treatment have been developed for decreasing the effect of ambient lighting on a displayed image. The effect of ambient lighting on LCDs with different surface treatments, namely, glare (G)-type, anti-glare (AG)-type, and anti-reflection (AR)-coating LCDs, was evaluated quantitatively in this study for appropriate selection. The effect of ambient lighting on diffuse reflection and specular reflection was investigated. The coefficient of diffuse reflection of the AR-coating LCD was smaller than the others. The effect of diffuse reflection on the display function of each LCD was evaluated in terms of the deviation of the contrast response at the lowest luminance level when the illuminance changed from the condition that was used for calibration of the grayscale standard display function. The display function of the AR-coating LCD was affected less by diffuse reflection compared to the others. On the other hand, the coefficient of specular reflection of the AG-type LCD was the smallest until the angle of aperture of the light source was 4.6. The specular-reflected image on the AG-type LCD had a remarkably broad distribution compared to the others. Our results are merely examples for a limited number of LCDs; however, we clarified quantitatively that the AR-coating and the AG-type LCDs were affected less by diffuse and specular reflection than the G-type LCD.

Original languageEnglish
Pages (from-to)121-129
Number of pages9
JournalRadiological physics and technology
Volume6
Issue number1
DOIs
Publication statusPublished - Jan 1 2013

All Science Journal Classification (ASJC) codes

  • Radiation
  • Physical Therapy, Sports Therapy and Rehabilitation
  • Radiology Nuclear Medicine and imaging

Fingerprint Dive into the research topics of 'Effect of ambient lighting on liquid-crystal displays with different types of surface treatment'. Together they form a unique fingerprint.

  • Cite this