Examination of the safety of the exclusive liquid crystal display monitor for diagnostic imaging and research on the test picture development for accuracy management.

液晶显示监视器的基本检查表明IPS（面内切换）模式和VA（垂直对准）模式最适合作为诊断成像的对象。虽然液晶显示监视器的亮度退化时间与CRT监视器相比要宽松得多，但当其连续10，000小时时，结果是亮度福尔斯下降到初始值的70-80%。早期亮度在包含亮度稳定电路的监视器中保持至少10，000小时。在低对比度的目标下，液晶显示器可以用作CRT监视器的替代品。室内照明的影响并不显著，并且还建议在明亮的照明下可以使用液晶显示器。即使与CRT监视器相比，液晶显示监视器（1 M、2 M、3 M和5 M）的诊断能力也是如此。也就是说，液晶显示器可以用CRT监视器代替，用于诊断成像（乳房X线摄影除外）。在使用3 M液晶显示器的乳房X线照片的研究中，未观察到对不可触及的钙化病变的诊断能力下降。根据这些研究结果，可以得出结论，用于CRT监视器的亮度劣化判断的测试图像（临床图像和对比度图表）也可以应用于液晶显示监视器的亮度劣化判断。

Fundamental examination of a liquid crystal display monitor showed that IPS (In-plane Switching) mode and VA (Vertically Aligned) mode were most suitable as an object for diagnostic imaging. Although the time of luminosity degradation of a liquid crystal display monitor was far loose compared with the CRT monitor, when it became in continuation 10,000 hours, it turned out that luminosity falls to 70-80% of an initial value. Early luminosity is kept in the monitor in which the luminosity stabilization circuit is included for at least 10,000 hours. At the target of low contrast, a liquid crystal display can be used as substitution of a CRT monitor. The influence of indoor illumination was not significant and it was suggested also under bright lighting that a liquid crystal display can be used. even if compared with a CRT monitor about the diagnostic ability of a liquid crystal display monitor (1M, 2M, 3M, and 5M). That is, a liquid crystal display monitor can be replaced with a CRT monitor for diagnostic imaging (except for mammography). In the research of a mammo gram using 3M liquid crystal display monitor, the fall of the diagnostic ability of a non-palpable calcification lesion was not seen. From these research results, it is concluded that the test picture for the luminosity degradation judging of a CRT monitor (a clinical picture and contrast chart) would be applicable also to the luminosity degradation judging of a liquid crystal display monitor.