Light emitting device, display apparatus with an array of light emitting devices, and display apparatus method of manufacture
AssigneeNichia Corporation
InventorsYoshifumi Nagai, Yuichi Fujiwara, Kunihiro Izuno
Life of this patent
Estimating the term…
Abstract
A light emitting device and display apparatus using a plurality of light emitting devices can drastically reduce contrast loss due to light from an external source. The light emitting device has a light emitting chip(s) and a first layer covering the light emitting chip(s). A second layer including a light scattering material is provided at least over the first layer, and the surface of the second layer has a plurality of protrusions which follow the topology of the light scattering material. The display apparatus is formed by disposing these light emitting devices in an array on a substrate.
Claims11
A method of manufacturing a light emitting device comprising a package having a cavity which is formed by side-walls of the package, and a light emitting chip disposed on a surface at the base of the cavity, said method comprising:
- disposing the light emitting device on the base of the cavity;
- and
- forming a layer including light scattering material at least over upper surfaces of the side-wall of the package such that the average thickness of the layer including the light scattering material is smaller than the average diameter of the light scattering material.
Dependencies are inferred from the claim text.