发明申请
US20070293666A1 Optical Filter and Its Applications, and Porphyrin Compound Used in Optical Filter
审中-公开
光学滤波器及其应用，以及用于光滤波器的卟啉化合物
- 专利标题： Optical Filter and Its Applications, and Porphyrin Compound Used in Optical Filter
- 专利标题（中）： 光学滤波器及其应用，以及用于光滤波器的卟啉化合物
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申请号： US11665742申请日： 2005-10-24
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公开(公告)号： US20070293666A1公开(公告)日： 2007-12-20
- 发明人: Hiromi Minami , Tomoyuki Okamura , Akifumi Kagayama , Rihoko Suzuki , Kenichi Fujii , Ryu Oi , Taizo Nishimoto , Makoto Morohashi , Tsutami Misawa , Shin Fukuda
- 申请人： Hiromi Minami , Tomoyuki Okamura , Akifumi Kagayama , Rihoko Suzuki , Kenichi Fujii , Ryu Oi , Taizo Nishimoto , Makoto Morohashi , Tsutami Misawa , Shin Fukuda
- 申请人地址： JP Minato-ku, Tokyo 1057117
- 专利权人： Mitsui Chemicals, Inc.
- 当前专利权人： Mitsui Chemicals, Inc.
- 当前专利权人地址： JP Minato-ku, Tokyo 1057117
- 优先权： JP2004-310118 20041025; JP2004-310117 20041025; JP2004-359249 20041213
- 国际申请： PCT/JP05/19475 WO 20051024
- 主分类号： C07D487/22
- IPC分类号： C07D487/22
摘要：
An optical filter of the present invention contains at least one tetra-acenaphthoporphyrin compound. The tetra-acenaphthoporphyrin compound has preferably its absorption maximum in a wavelength range of from 530 to 570 nm and a ratio of an absorption coefficient at 550 nm to an absorption coefficient at 525 nm of not less than 1.2. Also, a percentage of light transmittance at 550 nm to light transmittance at 525 nm is preferably not more than 85%. According to the present invention, it is possible to provide the optical filter which can eliminate an unnecessary light mainly existing in a wavelength of from 520 to 700 nm and is excellent in durability. A display unit using the optical filter of the present invention can improve contrast in a bright place, and improve color purity of luminescent color.
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