CRT display apparatus

Details CRT display apparatus CRT display apparatus

1993-08-24

1995-10-17

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

H01J 2958

Patent

active

054593786

ABSTRACT:
A CRT display apparatus equipped with a control apparatus for performing a focusing control and a brightness control by changing a grid voltage by means of a potentiometer. The control apparatus includes a motor for driving the potentiometer in response to an externally supplied control signal, and the motor is mechanically arranged with the potentiometer in an integrated form. Both of a plurality of potentiometers and motors for driving the plural potentiometers are formed on the same substrate in an integrated form. Also, the control apparatus is molded with a flyback transformer for constituting the CRT display apparatus. The motor is constructed of either an ultrasonic motor, or a plastic geared motor.

REFERENCES:
patent: 3792927 (1974-02-01), Bertram
patent: 4955680 (1990-09-01), Forese-Peeck et al.
patent: 5105128 (1992-04-01), Choi

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