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Patent Searching and Data


Title:
SURFACE-EMITTING LASER ELEMENT AND LIGHT-EMITTING DEVICE COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2020/022827
Kind Code:
A1
Abstract:
An embodiment relates to a surface-emitting laser element and a light-emitting device comprising same. The surface-emitting laser element according to an embodiment may comprise: a substrate; a first reflective layer arranged on the substrate; an active layer arranged on the first reflective layer; an aperture layer arranged on the active layer and comprising an opening; a second reflective layer arranged on the active layer; a transparent electrode layer arranged on the second reflective layer; and a metal electrode layer arranged on the transparent electrode layer. The transparent electrode layer may comprise a first area perpendicularly overlapping the opening and multiple second areas extending from the first area. The multiple second areas may be arranged outside the opening along the circumferential direction of the opening and spaced apart from each other. The multiple second areas may be arranged and spaced apart from each other so as to correspond to the circumference of the opening. The metal electrode layer may electrically contact the second reflective layer between the multiple second areas.

Inventors:
LEE, Yong Gyeong (98 Huam-ro, Jung-gu, Seoul, 04637, KR)
JUNG, Se Yeon (98 Huam-ro, Jung-gu, Seoul, 04637, KR)
LEE, Tae Yong (98 Huam-ro, Jung-gu, Seoul, 04637, KR)
Application Number:
KR2019/009313
Publication Date:
January 30, 2020
Filing Date:
July 26, 2019
Export Citation:
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Assignee:
LG INNOTEK CO., LTD. (98 Huam-ro, Jung-gu, Seoul, 04637, KR)
International Classes:
H01S5/042; F21S41/16; H01S5/183; F21Y115/30
Foreign References:
JP2007059672A2007-03-08
JP2013021278A2013-01-31
JP2014127511A2014-07-07
KR20040100962A2004-12-02
JP2010192650A2010-09-02
Attorney, Agent or Firm:
HAW, Yong Noke (6th Fl. Hyun Juk Bldg, 114 Yeoksam-ro,Gangnam-gu, Seoul, 06252, KR)
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