发明申请
- 专利标题: Optical filter and display apparatus with the same
- 专利标题(中): 滤光片和显示装置相同
-
申请号: US11100444申请日: 2005-04-07
-
公开(公告)号: US20050179357A1公开(公告)日: 2005-08-18
- 发明人: Norihisa Nakao , Daiki Takahashi , Hiroyoshi Fukasawa , Hidemi Matsuda
- 申请人: Norihisa Nakao , Daiki Takahashi , Hiroyoshi Fukasawa , Hidemi Matsuda
- 申请人地址: JP Tokyo
- 专利权人: KABUSHIKI KAISHA TOSHIBA
- 当前专利权人: KABUSHIKI KAISHA TOSHIBA
- 当前专利权人地址: JP Tokyo
- 优先权: JPJP2002-338043 20021121
- 主分类号: G02B5/22
- IPC分类号: G02B5/22 ; G09F9/00 ; H01J29/86 ; H01J29/89 ; H04N5/65
摘要:
An optical filter applied to a display apparatus, disposes on a substrate with transparency and has a maximum absorption wavelength λ in a wavelength range of 575±20 nm in connection with a wavelength range from 450 to 650 nm. The optical filter satisfies a relationship, 0.65≦T1 (λ)/T2 (λ)≦0.90 where T1 (λ) is a transmittance at a central part of the substrate at the maximum absorption wavelength λ, and T2 (λ) is a transmittance at a peripheral part of the substrate at the maximum absorption wavelength λ. The optical filter also satisfies a relationship, 0.90≦(T1 (λ1)/T2 (λ1))/(T1 (λ)/T2 (λ))≦1.05 with respect to transmittances wherein λ1 is each wavelength 450 nm, 530 nm and 630 nm, and λ is the maximum absorption wavelength.
公开/授权文献
- US07329981B2 Optical filter and display apparatus with the same 公开/授权日:2008-02-12