BRIGHTNESS AND UNIFORMITY-ENHANCED PROJECTOR SCREEN

The disclosed technology generally relates to displays, and more particularly to projection screens configured to display images with increased brightness and improved contrast and uniformity by using optical layers to control the direction and shape of the return light profiles. The disclosed technology comprises an optical layer configured such that incident light from a light source is directed towards specific positions for all locations on the reflective or transmissive display medium, and a light profile shaping optical layer configured to shape an intensity distribution of light reflected or transmitted from projection screen, prior to displaying the image to a viewer. The direction controlling optical layer and the light profile shaping optical layer may be combined into a single optical medium. 所公开的技术通常涉及显示器，并且更具体地说，涉及被配置为通过使用光学层来控制返回光廓形的方向和形状以增加的亮度和改善的对比度和均匀性来显示图像的投影屏幕。所公开的技术包括：光学层，该光学层被配置为使得来自光源的入射光被引导朝向反射性或透射性显示介质上全部位置的特定方位；以及光廓形整形光学层，该光廓形整形光学层被配置为在向观看者显示图像之前整形从投影屏幕反射或透射的光的强度分布。方向控制光学层和光廓形整形光学层可以被