Abstract: The field-display means of a conventional television set are used, to which the odd lines of a VGA image are transmitted during one field and the even lines during the next field, thereby providing for the use of a television set as a computer monitor.

Abstract: The control performance of a controlled power supply (14, 13, 1, 6, 8) which specifically feeds the line output stage (35) is deliberately degraded so as to produce the same effect as in the case where a resistor of about ten ohms would be arranged in its power supply connection (5). This is realized by causing the current feeding the line output stage (35) to flow through a part of a resistor (8) of the divider.

Abstract: A picture display apparatus adapted to pictures having an aspect ratio 16/9, permitting the simultaneous control of the line length and the vertical spacing of the lines. For the reception of pictures having an aspect ratio 4/3, the two control circuits are coupled in such a manner that the length of the lines of the displayed picture is decreased (2, 20) when the vertical spacing of the lines is normal or that the length of the lines of the displayed picture is normal when the vertical spacing between the lines is increased (3, 6). In addition, the control circuits are a continuously variable type, and access of the user to the control circuits is effected by remote control.