公开(公告)号：US07486854B2

公开(公告)日：2009-02-03

申请号：US11338251

申请日：2006-01-24

Applicant: Dan Van Ostrand ,  Carey King ,  Garth Gobell

Inventor： Dan Van Ostrand ,  Carey King ,  Garth Gobell

IPC: G02B6/26

CPC classification number: G02B6/2852 ,  G02B6/00 ,  G02B6/122 ,  G02B6/125 ,  G02B6/351 ,  G09G3/3473

Abstract: The application of microstructures which improve the quality of light available to the viewer of an optical display system, or any display which works on the concept of moving one surface into direct contact or close proximity of a light guide to extract light through frustrated total internal reflection. Optical microstructures are introduced on one or both of the surfaces of the active layer to enhance its performance. Since the active layer has both an input and an output function, means for enhancing both are presented. The input function to the active layer occurs on the internal surface, so this is where the present invention adds a collector-coupler, a means for facilitating the migration of light from the waveguide into the active layer. The output function occurs on the external surface, where the present invention adds a collimator, a means for both increasing the probability that a light wave will be released from the active layer, and improving the apparent intensity by redirecting light waves so that more of them reach the viewer. Compound microlenses on the internal surface of the active layer can serve as both collector-couplers and collimators, substantially improving light extraction from the light guide and light distribution to the viewer. Depositing a reflective or colored material in the interstitial spaces between these compound microlenses improves the contrast ratio and mitigate pixel cross-talk. The opaque material can be conductive for use in actuating the display.

Abstract translation: 适用于提高光学显示系统的观众可获得的光的质量的微观结构，或任何显示器，其工作原理是将一个表面移动到直接接触或接近光导以通过沮丧的全内反射来提取光线 。 在有源层的一个或两个表面上引入光学微结构以提高其性能。 由于有源层具有输入和输出功能，因此呈现增强两者的手段。 有源层的输入功能发生在内表面上，因此这是本发明添加集电极耦合器的一个方面，一种便于将光从波导迁移到有源层中的装置。 输出功能发生在外表面，其中本发明添加了准直器，用于增加光波从有源层释放的可能性的手段，以及通过重新定向光波来改善视在强度，使得更多的它们 到达观众 有源层内表面上的复合微透镜可以用作收集器 - 耦合器和准直器两者，实质上改善了光导的光提取和对观察者的光分布。 在这些复合微透镜之间的间隙中沉积反射或着色材料可以提高对比度并减轻像素串扰。 不透明材料可以是导电的，用于启动显示器。