Invention Grant
- Patent Title: Illumination device, display device, and television receiving device
- Patent Title (中): 照明装置，显示装置和电视接收装置
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Application No.: US14348446Application Date: 2012-09-28
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Publication No.: US09322980B2Publication Date: 2016-04-26
- Inventor: Kentaro Kamada
- Applicant: Sharp Kabushiki Kaisha
- Applicant Address: JP Osaka
- Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee Address: JP Osaka
- Agency: Chen Yoshimura LLP
- Priority: JP2011-222204 20111006
- International Application: PCT/JP2012/075065 WO 20120928
- International Announcement: WO2013/051473 WO 20130411
- Main IPC: G02B6/42
- IPC: G02B6/42 ; H04N5/44 ; F21V8/00 ; G02F1/1335 ; G02F1/1333
Abstract:
The backlight device (24) of the present invention is provided with: a heat-dissipating member (36) having a bottom surface part (36a); a light guide plate (20) that has a light-receiving face (20a) on the side face thereof and that is arranged such that the back surface of the plate faces the front of the bottom surface part (36a); and LED light-source (28) that is arranged opposite to the light-receiving face (20a) above the front surface of the bottom surface part (36a); a reflective sheet (26) that is arranged to be in contact with the back surface of the light-guide plate (20); and a protruding part (38) that is formed so as to protrude from the front surface of the bottom surface part (36a) between the LED light source (28) and the light-receiving face (20a), the protruding part (38) being higher than the back surface of the light guide plate (20).
Public/Granted literature
- US20140226073A1 ILLUMINATION DEVICE, DISPLAY DEVICE, AND TELEVISION RECEIVING DEVICE Public/Granted day:2014-08-14
Information query
