AMLCD backlight angular control using fiberoptic face plate

For use in a display including a light source, a transparent cover, a diffuser, and a brightness enhancement film, a fiber optic face plate stack comprising:

• a fiber optic face plate comprising:
• fibers being configured to allow light to be transmitted through the fiber optic face plate based on the light being incident on the fiber optic face plate within an angular region, the fiber optic face plate being configured to absorb light based on the light being incident on the fiber optic face plate outside the angular region, wherein the fiber optic face plate is biased at an offset angle by having the fibers at the offset angle relative to the normal of the face plate;
• and
• an image direction film adjacent to the brightness enhancement film and configured to offset the distribution of the light according to the offset angle, wherein the image direction film changes an angle of transmission of the light through the image direction film, wherein the light from the light source is redirected into the acceptance cone, wherein the image direction film is configured to bias the light at the offset angle.

A fiber optic face plate, the fiber optic face plate stack comprising:

• a fiber optic face plate comprising fibers configured to allow light to be transmitted through the fiber optic face plate based on the light being incident on the fiber optic face plate within an angular region, the angular region being at an offset angle, the fiber optic face plate being configured to absorb light based on the light being incident on the fiber optic face plate outside the angular region;
• wherein the angular region is offset with respect to the fiber optic face plate normal, wherein the fibers are disposed at a fiber angle relative to the fiber optic face plate normal, wherein the fiber angle is the offset angle;
• and
• an image direction film adjacent to a brightness enhancement film and configured for offsetting the distribution of the light at the fiber angle, wherein the image direction film changes an angle of transmission of the light through the image direction film, wherein the light is redirected into the acceptance cone.