Patent ID: 9157026
Filing Date: 2015-10-13
Classification: B32B,C09K,Y10T

Abstract:
1. A photoluminescent sheet, comprising: a body containing a phosphor and a light diffusing agent configured to diffuse incoming light and comprising two opposing surfaces, wherein the body is configured to 1) absorb light, of at least one wavelength, emitted from a light source, 2) emit light of a wavelength different from the wavelength of the emitted light and 3) allow the remainder of the light emitted from the light source to penetrate the photoluminescent sheet; and a layer directly contacted with at least one of the two opposing surfaces of the body, wherein the layer comprises a bead and an adhesive layer for attaching the bead to the body, wherein the adhesive layer comprises a first portion and a second portion, wherein a radius of the bead is greater than a thickness of the first portion of the adhesive layer, wherein one of the two opposing surfaces of the body has a roughness surface having a sawtooth wave shape for providing a minimized contacting surface, and wherein the second portion of the adhesive layer surrounds an entire surface of the bead.