SYSTEM, DISPLAY APPARATUS AND METHOD FOR PROVIDING CONTROLLED ILLUMINATION USING INTERNAL REFLECTION

A lighting system, a lighting display apparatus and a method for providing illumination are provided to selectively control light generated from a light source apparatus by measuring an optical characteristic of the light within an optical penetration region based on an optical sensor installed on the optical penetration region. A lighting system includes a substrate(32), a plurality of light source apparatuses, an optical penetration region(36), a reflective layer(38), and an optical sensor(42). The plurality of optical source apparatuses are located on the substrate(32) and discharge light. The optical penetration region(36) is formed between the light source and the substrate(32). The reflective layer(38) is located on the optical penetration region(36). The reflective layer(38) reflects internally a part of the light emitted from the light source apparatus within the optical penetration region(36). The optical sensor(42) is located within the optical penetration region(36). The optical sensor(42) receives a part of the light within the optical penetration region(36) to measure an optical characteristic of the light from the light source apparatus.