| 发明名称 |
COLOR TELEVISION PROJECTION DEVICE WITH CATHODOLUMINESCENT LIGHT SOURCES |
| 摘要 |
The invention relates to a color television projection device having three planar monochromatic light sources for the background illumination of a viewing screen, in which a matrix-shaped electro-optical light valve is associated with each light source characterized in that the light sources are cathodo luminescent.
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| 申请公布号 |
US5089883(A) |
申请公布日期 |
1992.02.18 |
| 申请号 |
US19890428389 |
申请日期 |
1989.10.27 |
| 申请人 |
U.S. PHILIPS CORPORATION |
发明人 |
WELKER, THOMAS;ZAENGEL, THOMAS |
| 分类号 |
H04N5/74;H04N9/31 |
主分类号 |
H04N5/74 |
| 代理机构 |
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