公开(公告)号：EP1618550A1

公开(公告)日：2006-01-25

申请号：EP04724024.7

申请日：2004-03-29

申请人： Thales

发明人： SCHOU, Guy Thales Intellectual Property

IPC分类号： G09G3/34

CPC分类号： G09G3/3413 ,  G09G3/2014 ,  G09G3/207 ,  G09G3/32 ,  G09G3/3611 ,  G09G2320/0285 ,  G09G2320/0626 ,  G09G2320/064 ,  G09G2320/0666 ,  G09G2360/144 ,  G09G2380/12 ,  H05B33/0818 ,  H05B33/0827 ,  H05B33/0869

摘要： The invention relates to light boxes which are used to illuminate light valve display screens, for example LCD (Liquid Crystal Display) matrices. At present, the light from light boxes is provided by electroluminescent diodes emitting in different spectral bands such as to reconstruct a white light. For a certain number of applications, such as aeronautical applications, it is necessary to retain the photometric and colorimetric characteristics of said light, independently of environmental conditions or component ageing. For said purpose, the invention relates to an electronic automatic control device which can be used to maintain the photometric and colorimetric characteristics of the light at given set values without disruptive optoelectronic devices being introduced into the light box. The invention also relates to several possible technical solutions.

摘要翻译： 本发明涉及用于照亮光阀显示屏的灯箱，例如LCD（液晶显示器）矩阵。 目前，来自灯箱的光由不同光谱带发射的电致发光二极管提供，以重建白光。 对于一定数量的应用，例如航空应用，有必要保持所述光的光度和色度特性，而不受环境条件或部件老化的影响。 为了所述目的，本发明涉及一种电子自动控制装置，该电子自动控制装置可以用于将光的光度和色度特性维持在给定的设定值，而不会将破坏性的光电子装置引入光箱中。 本发明还涉及几种可能的技术解决方案。