Specular and diffuse reflection measurement feasibility study of ISO9241 Part 7 method

Naoaki Umezu, Yoshihiko Nakano, Takao Sakai, Ryoji Yoshitake, Werner Herlitschke, Satoru Kubota

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


ISO DIS9241 Part 7 describes the requirements of display reflection for CRTs an some flat panels (emissive displays whose colour and luminance contrast do not vary strongly as a function of the viewing direction). The Japanese member body of ISO TC159 SC4 has been contributing to the Part 7 measurements. In 1996, some issues of the reflection measurement were pointed out at the ISO TC159 WG2 meeting and SID conference. The issues are the uncertainty of the evaluation method. It is reported to what degree the issues affect the Part 7 measurement requirement, showing the results of actual experiments for CRTs and LCDs. The goal is to verify that the ISO DIS9241 Part 7 method has an effective certainty from an ergonomic point of view.

Original languageEnglish
Pages (from-to)17-25
Number of pages9
Issue number1
Publication statusPublished - 1998
Externally publishedYes

ASJC Scopus subject areas

  • Human-Computer Interaction
  • Hardware and Architecture
  • Electrical and Electronic Engineering


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