Effects of ambient illumination and screen luminance combination on character identification performance of desktop TFT-LCD monitors
Effects of ambient illumination and screen luminance combination on character identification performance of desktop TFT-LCD monitors
复制标题
DOI：
10.1016/j.ergon.2005.11.004
复制
发表时间：
2006-03-01
影响因子：
3.1
通讯作者：
Huang, KC
中科院分区：
文献类型：
--
作者：
Lin, CC;Huang, KC
研究了环境照度和屏幕亮度组合对薄膜晶体管液晶显示器(TFT-LCD)字符识别性能的影响。结果表明，在正常办公水平下，环境光照对字符识别成绩没有显著影响。虽然我们的结果表明屏幕亮度组合确实对字符识别性能有显著的影响，但可以忽略屏幕亮度组合的影响，因为屏幕的亮度组合足够并且对比度足够高。一般来说，字符识别性能随着背景屏幕亮度的增加而提高。然而，在高对比度下，C16L的字符识别性能低于C8H。这些结果似乎表明，在相对较高的环境照度下，字符识别更受屏幕背景亮度的影响，而不是对比度或对比度敏感度。因此，同时考虑屏幕亮度组合和对比度可能比仅考虑对比度更合适。与行业相关TFT-LCD正迅速成为当今VDT显示器的最佳选择。环境光照和屏幕亮度组合是影响TFT-LCD用户字符识别性能的关键因素。这项研究的结果可能会改善TFT-LCD用户的视觉性能。(C)2005 Elsevier B.V.保留所有权利。
This study investigated the effects of ambient illumination and screen luminance combination on character identification performance of thin film transistor liquid-crystal displays (TFT-LCD) monitors. Results showed that character identification performance was not significantly affected by ambient illumination at normal office levels. Further, the effects of ambient illumination regarding CRT use as found in previous Studies may apply to TFT-LCD at normal office ambient illumination levels.Though our results showed that screen luminance combination did significantly affect character identification performance, the effect or screen luminance combination may be disregarded as the luminance combination of screen is adequate and the contrast ratio is high enough. In general, character identification performance increased with increasing background screen luminance. However, under high contrast ratio, C16L showed character identification performance lower than C8H. These results seem to indicate that character identification under relatively high ambient illumination is more affected by background luminance of the screen than contrast ratio or contrast sensitivity. Therefore, considering screen luminance combination and contrast ratio Simultaneously may be more appropriate than considering contrast ratio alone.Relevance to industryThe TFT-LCD is fast becoming the most optimal choice in VDT display today. Ambient illumination and screen luminance combination are the key factors affecting character identification performance for TFT-LCD users. The results from this study may improve the visual performance for TFT-LCD users. (c) 2005 Elsevier B.V. All rights reserved.