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公开(公告)号：EP0746946B1
公开(公告)日：2001-06-13
申请号：EP95936066.0
申请日：1995-11-21
发明人： VIS, Petrus, Nicolaas, Joseph , KEMNER, Rudolf , MONTIE, Edwin, André , KETTING, Alfred , HOEVEN, Adriaan, Johannes
IPC分类号： H04N9/16
CPC分类号： H04N9/16
摘要： The phosphor screen (4) in a display device in accordance with the invention is scanned by means of separate electron beams (23, 24) in order to generate images of different frequency content in one colour in substantially the same part of a phosphor screen (4). The different images can be perceived as a composite image for some time. The individual electron beams can be modulated by means of a cathode modulator (5) on the basis of a high frequency and a low frequency component of an electronic image signal or on the basis of an image component and a text component of an electronic image signal. The modulations of the individual electron beams may be slightly delayed relative to one another in order to avoid overloading of the phosphor material.
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公开(公告)号：EP0804852A1
公开(公告)日：1997-11-05
申请号：EP96935235.0
申请日：1996-11-11
摘要： An image display device (1) which includes a cathode ray tube is provided with a cathode system (2) for the emission of a plurality of electron beams (3) whereby a phosphor screen (4) is scanned in order to display an image. The electron beams are modulated on the basis of an electronic image signal by means of a cathode modulator (5). The cathode modulator is arranged to scan different image lines simultaneously by means of separate electron beams. For example, the cathode modulator comprises an extension system (7) and a delay system (8) for deriving extended and delayed extended image line sections from image line sections of the electronic image signal. The cathode modulator also comprises a combination unit (9) for simultaneously supplying an extended image line section and a delayed image line section with which separate electron beams are modulated.
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公开(公告)号：EP0746946A1
公开(公告)日：1996-12-11
申请号：EP95936066.0
申请日：1995-11-21
发明人： VIS, Petrus, Nicolaas, Joseph , KEMNER, Rudolf , MONTIE, Edwin, André , KETTING, Alfred , HOEVEN, Adriaan, Johannes
CPC分类号： H04N9/16
摘要： The phosphor screen (4) in a display device in accordance with the invention is scanned by means of separate electron beams (23, 24) in order to generate images of different frequency content in one colour in substantially the same part of a phosphor screen (4). The different images can be perceived as a composite image for some time. The individual electron beams can be modulated by means of a cathode modulator (5) on the basis of a high frequency and a low frequency component of an electronic image signal or on the basis of an image component and a text component of an electronic image signal. The modulations of the individual electron beams may be slightly delayed relative to one another in order to avoid overloading of the phosphor material.
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