Abstract
The quality control of liquid-crystal display (LCD) monitors has become one of the important topics for maintaining reliable soft-copy readings in the interpretation of diagnostic images. In this paper, the effects of correction in the luminance measurement of an LCD monitor by use of a telescopic-type luminance meter were investigated. The luminance of the LCD monitor in different ambient-lighting conditions was measured and compared to the results obtained with no ambient lighting (0 lux). The reproducibility of luminance measurements and luminance ratios without a baffled tube was lower than those measured with the baffled tube due to the effect of ambient light. These tendencies were obvious at a relatively low luminance. The correction method by subtraction of the reflected ambient light on the surface of the LCD monitor and the stray light of the telescopic-type luminance meter from the measured luminance was examined. We found that the correction was able to bring the luminance close to that measured with the baffled tube.
| Original language | English |
|---|---|
| Pages (from-to) | 65-69 |
| Number of pages | 5 |
| Journal | Radiological Physics and Technology |
| Volume | 3 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 01-2010 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Radiation
- Physical Therapy, Sports Therapy and Rehabilitation
- Radiology Nuclear Medicine and imaging