Light emitting device that suppresses color unevenness
AssigneeStanley Electric Co., Ltd.
InventorsHiroshi Kotani, Takaaki Sakai
Life of this patent
Estimating the term…
Abstract
A light-emitting device that suppresses color unevenness can be provided. A transparent member can be disposed on a fluorescence-containing resin layer. Part of excitation light can be emitted upward from an edge surface of the fluorescence-containing resin layer directly and without passing through the transparent member. Thus, fluorescent light emitted in large quantities from a place near an edge surface of the transparent member can be mixed with the excitation light emitted from the edge surface of the fluorescence-containing resin layer directly without passing through the transparent member, thereby suppressing color unevenness at a location near the edge surface of the transparent member.
Claims26
A light-emitting device, comprising:
- a mounting substrate;
- a light-emitting element disposed on the mounting substrate;
- a fluorescence-containing resin layer disposed on the light-emitting element and containing fluorescent particles;
- and
- a light-transmitting member disposed on the fluorescence-containing resin layer,
- wherein the light-emitting element includes a light emitting structure layer and a support substrate supporting the light-emitting structure layer, the light emitting structure layer being at least one semiconductor layer including at least a light-emitting layer,
- a size of the light-transmitting member being substantially the same as or smaller than a size of the light-emitting structure layer, the fluorescence-containing resin layer having a sloping edge surface connecting an edge portion of the light-transmitting member and an edge portion of the support substrate.
A light-emitting device, comprising:
- a mounting substrate;
- a light-emitting element disposed on the mounting substrate;
- a fluorescence-containing resin layer disposed on the light-emitting element and containing fluorescent particles;
- and
- a light-transmitting member disposed on the fluorescence-containing resin layer,
- wherein the light-emitting element includes a light emitting structure layer and a support substrate supporting the light emitting structure layer, the light emitting structure layer being at least one semiconductor layer including at least a light emitting layer,
- a size of the light-transmitting member being substantially the same as or smaller than a size of the light emitting structure layer, the fluorescence-containing resin layer having an edge surface disposed on the outer side than a side surface of the light-transmitting member.
A light-emitting device, comprising:
- a mounting substrate;
- a plurality of light-emitting elements disposed on the mounting substrate;
- a fluorescence-containing resin layer disposed on the light-emitting elements and including fluorescent particles;
- and
- one light-transmitting plate-like member disposed on the fluorescence-containing resin layer such that the plate-like member covers all the light-emitting elements,
- wherein the light-emitting elements each include a light emitting structure layer and a support substrate supporting the light emitting structure layer, the light emitting structure layer being at least one semiconductor layer including at least a light emitting layer,
- the plate-like member having an edge surface located at a position directly above an edge surface of the light emitting structure layer or at a position closer to a center of the light emitting structure layer than the edge surface of the light emitting structure layer, the fluorescence-containing resin layer having a sloping edge surface connecting an edge portion of the plate-like member and an edge portion of the support substrate.
A light-emitting device, comprising:
- a mounting substrate;
- a light-emitting element disposed on the mounting substrate;
- a fluorescence-containing resin layer disposed on the light-emitting element and including fluorescent particles;
- and
- a light-transmitting plate-like member disposed on the fluorescence-containing resin layer,
- wherein the light-emitting element includes a light emitting structure layer and a support substrate supporting the light emitting structure layer, the light emitting structure layer being at least one semiconductor layer including at least a light emitting layer,
- the plate-like member having an edge surface located at a position directly above an edge surface of the light emitting structure layer or at a position closer to a center of the light emitting structure layer than the edge surface of the light emitting structure layer, the fluorescence-containing resin layer having an edge surface disposed on an outer side as compared to a side surface of the plate-like member as viewed from above.
Dependencies are inferred from the claim text.