Light emitting panel assemblies
DCFirst Claim
1. A backlight assembly comprising a light emitting member having at least one light emitting area that emits light that is internally reflected within the light emitting member, a separate transparent sheet or film overlying the light emitting area with an air gap therebetween, a pattern of deformities on one side of the sheet or film having a width and length that is quite small in relation to the width and length of the sheet or film, the deformities varying at different locations on the sheet or film to direct the light that is emitted by the, light emitting member in different directions to produce a desired light output distribution such that the light will pass through a liquid crystal display with low loss.
6 Assignments
Litigations
2 Petitions
Accused Products
Abstract
Light emitting panel assemblies include a sheet, film or plate overlying a light emitting member. The sheet, film or plate has a pattern of deformities on one or both sides that may vary or be random in size, shape or geometry, placement, index of refraction, density, angle, depth, height and type for controlling the light output distribution to suit a particular application. Also the sheet, film or plate may have a coating or surface treatment for causing the light to pass through a liquid crystal display with low loss.
-
Citations
31 Claims
- 1. A backlight assembly comprising a light emitting member having at least one light emitting area that emits light that is internally reflected within the light emitting member, a separate transparent sheet or film overlying the light emitting area with an air gap therebetween, a pattern of deformities on one side of the sheet or film having a width and length that is quite small in relation to the width and length of the sheet or film, the deformities varying at different locations on the sheet or film to direct the light that is emitted by the, light emitting member in different directions to produce a desired light output distribution such that the light will pass through a liquid crystal display with low loss.
Specification