Invention Grant
- Patent Title: Lighting device, display device, and television device
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Application No.: US15744855Application Date: 2016-09-23
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Publication No.: US10371877B2Publication Date: 2019-08-06
- Inventor: Makoto Uno , Akira Gotou , Keitaro Matsui , Masanobu Harada
- Applicant: SHARP KABUSHIKI KAISHA
- Applicant Address: JP Sakai, Osaka
- Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee Address: JP Sakai, Osaka
- Agency: ScienBiziP, P.C.
- Priority: JP2015-186901 20150924; JP2015-186958 20150924; JP2015-188571 20150925
- International Application: PCT/JP2016/077955 WO 20160923
- International Announcement: WO2017/051845 WO 20170330
- Main IPC: F21V8/00
- IPC: F21V8/00 ; F21S2/00 ; G02B5/08 ; G02B5/20 ; H01L33/50

Abstract:
A lighting device includes a light source array, a wavelength converting member, and a light guide plate. The light source array includes light sources configured to emit primary light rays. The wavelength converting member includes a wavelength converting portion, a holding portion, and non-wavelength converting portions. The wavelength converting portion contains phosphors configured to emit secondary light rays when excited by the primary light rays. The wavelength converting member is disposed between the light guide plate and the light source array. The light guide plate includes a light entering surface, a light exiting surface, an opposite surface that is on an opposite side from the light exiting surface, and a light reflecting and scattering pattern. The light reflecting and scattering pattern includes complementary color dots formed in sections of the opposite surface on non-wavelength converting portion sides. The complementary color dots absorb the primary light rays.
Public/Granted literature
- US20180210129A1 LIGHTING DEVICE, DISPLAY DEVICE, AND TELEVISION DEVICE Public/Granted day:2018-07-26
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