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1. 发明公开

EP0605921A2 Display device including a black level setting circuit 失效
标题翻译：用于设定黑色电平电压的显示装置的电路。
公开(公告)号：EP0605921A2
公开(公告)日：1994-07-13
申请号：EP93203654.4
申请日：1993-12-23
申请人： Philips Electronics N.V.
发明人： Van Amesfoort, Alfonsus Maria
IPC分类号： H04N9/72
CPC分类号： H04N9/72
摘要： Known display devices include a video signal processing circuit with a black level setting circuit, which black level setting circuit measures the black level of the video signal, for example, during the field retrace interval by making use of an extra output of the video output stage.
However, the measured black level comprises a line-frequency interference component which is caused by a parasitic capacitance in the display tube.
The line-frequency interference component is fully compensated for by coupling one side of a secondary winding of a transformer required for the focusing voltage to be generated to a first capacitor, the other terminal of which is connected to the measuring input of the black level setting circuit and by coupling at least a second and a third capacitor across the secondary winding of the transformer.

2. 发明公开

EP0605921A3 Display device including a black level setting circuit 失效
标题翻译： Anzeigevorrichtung mit Schaltung zur Einstellung der Schwarzwertspannung。
公开(公告)号：EP0605921A3
公开(公告)日：1995-03-29
申请号：EP93203654.4
申请日：1993-12-23
申请人： Philips Electronics N.V.
发明人： Van Amesfoort, Alfonsus Maria
IPC分类号： H04N9/72
CPC分类号： H04N9/72
摘要： Known display devices include a video signal processing circuit with a black level setting circuit, which black level setting circuit measures the black level of the video signal, for example, during the field retrace interval by making use of an extra output of the video output stage. However, the measured black level comprises a line-frequency interference component which is caused by a parasitic capacitance in the display tube. The line-frequency interference component is fully compensated for by coupling one side of a secondary winding of a transformer required for the focusing voltage to be generated to a first capacitor, the other terminal of which is connected to the measuring input of the black level setting circuit and by coupling at least a second and a third capacitor across the secondary winding of the transformer.
摘要翻译：已知的显示装置包括具有黑电平设置电路的视频信号处理电路，该黑电平设置电路例如通过使用视频输出级的额外输出在场回扫间隔期间测量视频信号的黑电平。然而，测量的黑电平包括由显示管中的寄生电容引起的线频干扰分量。通过将要产生的聚焦电压所需的变压器的次级绕组的一侧耦合到第一电容器（其另一端子连接到黑电平设置的测量输入端）来完全补偿线路频率干扰分量并且通过在变压器的次级绕组上耦合至少第二和第三电容器。

3. 发明授权

EP0605921B1 Display device including a black level setting circuit 失效
标题翻译：用于设定黑电平显示装置用电路
公开(公告)号：EP0605921B1
公开(公告)日：1999-05-06
申请号：EP93203654.4
申请日：1993-12-23
申请人： Koninklijke Philips Electronics N.V.
发明人： Van Amesfoort, Alfonsus Maria
IPC分类号： H04N9/72
CPC分类号： H04N9/72

4. 发明公开

EP0626670A1 Selection driver comprising integrated driver circuits for a multi-beam flat display device 失效
标题翻译：选择电路具有用于具有多个电子束的平面型显示装置的集成控制电路。
公开(公告)号：EP0626670A1
公开(公告)日：1994-11-30
申请号：EP94201470.5
申请日：1994-05-25
申请人： PHILIPS ELECTRONICS N.V.
发明人： Van Amesfoort, Alfonsus Maria , Fronen, Robert Jan , McCormack, James Joseph Antony , Oostveen, Kornelis , Schoofs, Franciscus Adrianus Cornelis Maria
IPC分类号： G09G1/20
CPC分类号： H04N5/70 , G09G1/20
摘要： Picture display device comprising a plurality of electron transport ducts for transporting the electrons in the form of electron currents, and selection electrodes for withdrawing each electron current at predetermined locations from its transport duct and for directing said current towards a luminescent screen. The selection electrodes are driven by a selection driver comprising a resistance ladder for supplying a bias (transport) voltage increasing with the position of the selection electrodes, and coupling capacitors for applying selection pulses to the selection electrodes.
To enable the coupling capacitors to withstand voltages which are not too large, the selection driver comprises integrated driver circuits which are cascaded as regards their power supply voltages.
摘要翻译：图像显示装置，包括电子传送导管的多个用于以电子流，和选择电极的形式输送电子在从其输送沟道的预定位置回抽各电子流，并用于引导所述电流向发光屏。选择电极由驾驶员选择包括用于提供一偏压（运输）的电阻梯与电压选择电极，以及用于施加选择脉冲，以选择电极耦合电容器的位置增加驱动。为了使耦合电容耐压哪一项不是太大，选择驱动器包括级联至于他们的电源电压的集成驱动电路。

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