Title:
LIGHT EMITTING DEVICE, METHOD FOR PRODUCING SAME, AND PROJECTOR
Document Type and Number:
WIPO Patent Application WO/2019/039238
Kind Code:
A1
Abstract:
A light emitting device which comprises a substrate and a multilayer body that is provided on the substrate and has a plurality of columnar parts, and wherein: each one of the columnar parts has an n-type first semiconductor layer, a p-type second semiconductor layer, a light emitting layer that is arranged between the first semiconductor layer and the second semiconductor layer, and an electrode that is provided on a surface of the multilayer body, said surface being on the reverse side of the substrate-side surface; the first semiconductor layer is arranged between the light emitting layer and the substrate; an end of the light emitting layer, said end being on the opposite side of the substrate-side end, has a first facet surface; an end of the second semiconductor layer, said end being on the opposite side of the substrate-side end, has a second facet surface; and if θ1 is the taper angle of the first facet surface and θ2 is the taper angle of the second facet surface, θ1 and θ2 satisfy the relational expression θ1 ≤ θ2.
Inventors:
NODA TAKAFUMI (JP)
KISHINO KATSUMI (JP)
KISHINO KATSUMI (JP)
Application Number:
PCT/JP2018/029268
Publication Date:
February 28, 2019
Filing Date:
August 03, 2018
Export Citation:
Assignee:
SEIKO EPSON CORP (JP)
SOPHIA SCHOOL CORP (JP)
SOPHIA SCHOOL CORP (JP)
International Classes:
H01S5/343; C23C14/06; C30B25/02; C30B29/38; F21S2/00; H01L21/203; H01S5/11; F21Y115/30
Foreign References:
| JP2008544567A | 2008-12-04 |
Attorney, Agent or Firm:
FUSE, Yukio et al. (JP)
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