Patent ID: 8672498

Claim:
An optical assembly, comprising: a first layer; a plurality of light sources disposed over the first layer; a second layer that is disposed above the first layer and covering the plurality of light sources; and a pattern layer disposed above or in the second layer, wherein the pattern layer includes a plurality of patterns, which are respectively corresponding to the plurality of light sources and are formed with a different material from the second layer by depositing, printing, or coating, each of the plurality of patterns corresponds to one of the plurality of light sources that is located closest to said each of the plurality of patterns, at least one of the light sources has a light emitting surface that faces a lateral direction and emits light to the side, a center of at least one of the patterns is disposed a predetermined distance from a center of the corresponding closest light source in the lateral direction, and a width of each of the plurality of patterns in the lateral direction is greater than a width of the corresponding closest light source in the lateral direction.