发明申请
- 专利标题: IMAGE DISPLAY APPARATUS
- 专利标题(中): 图像显示设备
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申请号: US11935898申请日: 2007-11-06
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公开(公告)号: US20080111467A1公开(公告)日: 2008-05-15
- 发明人: MASAHIRO YOKOTA , Tsuyoshi Oyaizu , Hiroaki Ibuki
- 申请人: MASAHIRO YOKOTA , Tsuyoshi Oyaizu , Hiroaki Ibuki
- 申请人地址: JP Tokyo JP Tokyo
- 专利权人: CANON KABUSHIKI KAISHA,KABUSHIKI KAISHA TOSHIBA
- 当前专利权人: CANON KABUSHIKI KAISHA,KABUSHIKI KAISHA TOSHIBA
- 当前专利权人地址: JP Tokyo JP Tokyo
- 优先权: JP2006-309175 20061115
- 主分类号: H01J31/12
- IPC分类号: H01J31/12
摘要:
An image display apparatus including a rear plate and a face plate facing the rear plate; wherein the rear plate includes an electron-emitting device; and the face plate includes a light-emitting body for emitting light through irradiation of electrons from the electron-emitting device, and a metal back arranged between the electron-emitting device and the light-emitting body. The light-emitting body includes a first region in which a luminance with respect to a maximum value of a luminance in the light-emitting body is greater than or equal to 50% and a second region in which the luminance is less than 50%; and an arithmetic mean deviation of the profile (Ra) of the metal back in the second region is larger than the arithmetic mean deviation of the profile (Ra) of the metal back in the first region.
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