A color conversion sheet and an optical device
AssigneesMerck Patent GmbH, Az Electronic Materials (Luxembourg) S.A.R.L.
InventorsBernhard RIEGER, Christian MATUSCHEK, Ralf GROTTENMUELLER
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Abstract
The present invention relates to a color conversion sheet (100) and an optical device comprising a color conversion sheet (100). The present invention further relates to a use of the color conversion sheet (100) in an optical device (200). The invention further more relates to method for preparing the color conversion sheet (100) and method for preparing the optical device (200).
Claims17
A color conversion sheet (100) comprising at least one nanosized fluorescent material (110), a matrix material (120) and a barrier layer (130), wherein the barrier layer (130) is placed onto the outermost surface of the matrix material (120).
(canceled)
An optical device (200), wherein the optical device (200) comprises at least one nanosized fluorescent material (210), a matrix material (220), a barrier layer (230), and a light emitting diode element (240), wherein the barrier layer (230) is placed onto the outermost surface of the matrix material (220).
Method for preparing the color conversion sheet (100), wherein the method comprises following steps (a) and (c) in this sequence;
- (a) providing at least one nanosized fluorescent material (110), and a matrix material (120) onto a substrate,
- (b) providing perhydropolysilazane solution onto the surface of the matrix material, and
- (c) exposing the perhydropolysilazane to vacuum ultraviolet light.
Dependencies are inferred from the claim text.