Invention Grant
- Patent Title: Semiconductor laser, semiconductor laser set and display device
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Application No.: US15955852Application Date: 2018-04-18
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Publication No.: US10429664B2Publication Date: 2019-10-01
- Inventor: Youichi Asakawa , Ken Onoda , Toshihiko Fukuma , Shinichi Komura
- Applicant: Japan Display Inc.
- Applicant Address: JP Minato-ku
- Assignee: Japan Display Inc.
- Current Assignee: Japan Display Inc.
- Current Assignee Address: JP Minato-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2017-095454 20170512
- Main IPC: G02B27/48
- IPC: G02B27/48 ; H01S5/042 ; H01S5/00 ; H01S5/40 ; H01S5/30 ; F21V8/00 ; G02F1/1335
Abstract:
According to one embodiment, a semiconductor laser includes a semiconductor laser element. A drive current which is composed of a direct current and an alternating current superposed thereon is applied to the semiconductor laser element. A waveform of the alternating current is a non-square wave. A frequency of the alternating current is from 50 Hz to 500 kHz.
Public/Granted literature
- US20180329224A1 SEMICONDUCTOR LASER, SEMICONDUCTOR LASER SET AND DISPLAY DEVICE Public/Granted day:2018-11-15
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