Invention Grant
- Patent Title: Lighting device and display device
-
Application No.: US15765495Application Date: 2016-09-28
-
Publication No.: US10670917B2Publication Date: 2020-06-02
- Inventor: Hirotoshi Yasunaga , Mitsuhiro Murata , Hisashi Watanabe , Ryuzo Yuki
- Applicant: Sharp Kabushiki Kaisha
- Applicant Address: JP Sakai
- Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee Address: JP Sakai
- Agency: Keating & Bennett, LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@b5c591c
- International Application: PCT/JP2016/078564 WO 20160928
- International Announcement: WO2017/061312 WO 20170413
- Main IPC: G02F1/13357
- IPC: G02F1/13357 ; F21V8/00 ; G02F1/1335

Abstract:
A lighting device includes LEDs, a light guide plate, and a frame. The light guide plate includes a light guide plate hole portion passing through in a thickness direction, a light entering surface, and a light exiting surface. The frame surrounds the light guide plate. The frame includes an outer peripheral wall portion and an inner peripheral wall portion. The outer peripheral wall portion opposes an outer peripheral end face of the light guide plate. The inner peripheral wall portion inserted to the light guide plate hole portion opposes an inner peripheral end face of the light guide plate on an inner side of the light guide plate hole portion. The inner peripheral wall portion has a configuration in which the opposing surface has a lower light reflectivity than that of an opposing surface of the outer peripheral wall portion.
Public/Granted literature
- US20190072822A1 LIGHTING DEVICE AND DISPLAY DEVICE Public/Granted day:2019-03-07
Information query
IPC分类: