Invention Grant
- Patent Title: Lighting device and liquid crystal display apparatus comprising the same
- Patent Title (中): 照明装置及包括该装置的液晶显示装置
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Application No.: US13617595Application Date: 2012-09-14
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Publication No.: US08681289B2Publication Date: 2014-03-25
- Inventor: Ken Takahashi , Osamu Ono , Hidemi Matsuda , Nobuo Kawamura , Shusuke Morita , Masahiro Yokota , Takashi Nishimura
- Applicant: Ken Takahashi , Osamu Ono , Hidemi Matsuda , Nobuo Kawamura , Shusuke Morita , Masahiro Yokota , Takashi Nishimura
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2010-208545 20100916
- Main IPC: G02F1/1335
- IPC: G02F1/1335 ; F21V1/00 ; F21V13/00

Abstract:
According to one embodiment, a lighting device includes a radiation surface, at least one light source provided to face the radiation surface, and an optical control member provided between the radiation surface and the light source and includes optical characteristics of transmission, diffraction, diffusion, and reflection, which vary for regions in the optical control member, a distribution of each of the optical characteristics being determined by positions relative to the at least one light source. The optical control member is formed in a sheet shape which is controlled by at least one of a reflective film having a reflection factor distribution, and a reflective film having a numerical aperture distribution, and lenses.
Public/Granted literature
- US20130010232A1 LIGHTING DEVICE AND LIQUID CRYSTAL DISPLAY APPARATUS COMPRISING THE SAME Public/Granted day:2013-01-10
Information query
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