发明授权
- 专利标题: Back reflective mirror and back projection type video display device using the same
- 专利标题(中): 背反射镜和背投式视频显示装置使用相同
-
申请号: US10804617申请日: 2004-03-18
-
公开(公告)号: US07059730B2公开(公告)日: 2006-06-13
- 发明人: Nobuo Masuoka , Koji Hirata , Kei Adachi , Sadayuki Nishimura , Megumi Sakoo , Yoshie Kodera
- 申请人: Nobuo Masuoka , Koji Hirata , Kei Adachi , Sadayuki Nishimura , Megumi Sakoo , Yoshie Kodera
- 申请人地址: JP Tokyo
- 专利权人: Hitachi, Ltd.
- 当前专利权人: Hitachi, Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Townsend and Townsend and Crew LLP
- 优先权: JP2003-119196 20030424
- 主分类号: G03B21/22
- IPC分类号: G03B21/22 ; G03B21/28 ; G03B21/56 ; G02B5/22 ; H04N5/64
摘要:
In the present invention, there is disclosed a reflective mirror whose contrast or resolution performance is equal to that of a surface mirror of a glass mirror for general use and which does not have any problem in reliability of resistance to environment and whose color shift or brightness performance is inhibited from being degraded. For this, in the present invention, a reflective film is formed on a glass substrate by use of silver mirror reaction, and a topcoat is formed of a colorless/transparent resin. At this time, a wavelength of a crest of a ripple indicated by a reflectance characteristic is constituted to substantially agree with that of a green luminescent line. Accordingly, a back projection type video display device which is satisfactory in the contrast or resolution performance can be prepared.