SU‐GG‐I‐48: Evaluation of Viewing Angle Performance on the Latest High‐Brightness Color LCD Monitors with the In‐Plane Switching Panel for Medical Images

H. Akamine, K. Takahashi, M. Matsuyama, Y. Nakammura, N. Hashimoto, J. Morishita

Research output: Contribution to journalArticle

Abstract

Purpose: Our purpose was to compare the viewing angle performance on high‐brightness color liquid‐crystal display (LCD) monitors to that of monochrome LCD monitors. Method and Materials: We used four LCD monitors with an in‐plane switching (IPS) panel: two high‐brightness color LCD unt il 300 cd/m2, two‐megapixel, Eizo), and RX210, 220, cd/m2, two‐megapixel, Eizo), and two monochrome LCD monitors, (GS220, 500 cd/m2, two‐megapixel, Eizo, and G31‐S, 450 cd/m2, three‐megapixel, Eizo). The luminance performance of each LCD monitor was measured as a function of the viewing angle (−60° to +60°) in the horizontal, the vertical, and the diagonal directions by use of a telescopic‐type luminance meter without any ambient lighting. The viewing angle performance was evaluated with a relative contrast ratio of 70 % or greater. Results: The range of viewing angle in terms of relative contrast ratio on the 300 cd/m2 high‐brightness color, the 240 cd/m2 high‐brightness color, the 500 cd/m2 two‐megapixel monochrome, and the 450 cd/m2 three‐megapixel monochrome LCD monitors with similar IPS panels were 34° to 74°, 29° to 48°, 55° to 81°, and 39° to 74°, respectively. The relative contrast ratios showed notable variations for different viewing angles in spite of similar types of panels. Our results indicate that the viewing angle performance on the 240 cd/m2 color LCD monitor tended to provide a slightly inferior angular performance to the two monochrome LCD monitors used in this study. On the other hand, the 300 cd/m2 color LCD monitor had a comparable viewing angle performance with the 450 cd/m2 monochrome LCD monitor. Conclusion: The viewing angle performance on the high‐brightness color LCD monitors is inferior to that of monochrome LCD monitors. However the 300 cd/m2 color LCD monitor had comparable viewing angle performance with the 450 cd/m2 monochrome LCD monitor.

Original languageEnglish
Pages (from-to)3112
Number of pages1
JournalMedical physics
Volume37
Issue number6
DOIs
Publication statusPublished - Jun 2010

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Radiology Nuclear Medicine and imaging

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