| 发明名称 | Image display apparatus and control method thereof | ||
| 摘要 | An image display apparatus according to the present invention includes: a light emitting unit configured to include a light source; a display unit configured to display an image on a screen by transmitting light irradiated from the light emitting unit; a detection unit configured to detect light from the light source; and a control unit configured to extend a lighting duration of the light source when the detection unit detects light in a case where the lighting duration of the light source is shorter than a predetermined time length. | ||
| 申请公布号 | US9262968(B2) | 申请公布日期 | 2016.02.16 |
| 申请号 | US201314047400 | 申请日期 | 2013.10.07 |
| 申请人 | CANON KABUSHIKI KAISHA | 发明人 | Takayanagi Daisuke;Kikkawa Teruki |
| 分类号 | G09G3/34;G06F3/14 | 主分类号 | G09G3/34 |
| 代理机构 | Carter, DeLuca, Farrell & Schmidt, LLP | 代理人 | Carter, DeLuca, Farrell & Schmidt, LLP |
| 主权项 | 1. An image display apparatus comprising: a light emitting unit configured to include a light source; a display unit configured to display an image on a screen by transmitting light irradiated from the light emitting unit; a detection unit configured to detect light from the light source; a determination unit configured to determine whether or not a lighting duration of the light source in a detection period in which the detection unit detects light is shorter than a predetermined time length; and a control unit configured to extend the lighting duration of the light source in the detection period and to reduce emission brightness of the light source in the detection period, in a case where the determination unit determines that the lighting duration of the light source in the detection period is shorter than the predetermined time length. | ||
| 地址 | Tokyo JP | ||