Grid-drive type display apparatus

Details Grid-drive type display apparatus Grid-drive type display apparatus

1989-08-16

1991-06-11

Issing, Gregory C.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315379, G09G 104, H01J 2952

Patent

active

050235249

ABSTRACT:
In a grid drive-type CRT display apparatus, the impedance of a second grid voltage supply circuit is made a high impedance and a low-frequency band rejecting streaking interference caused by the high impedance is compensated by low-frequency range emphasizing circuit means. The low-frequency range emphasizing circuit means compensates for the low-frequency range rejection characteristic which is an adverse effect of the high impedance to the second grid and this results in an improvement in the high-frequency transmission characteristic. Also, there is the effect of improving the frequency bandwidth and reducing the consumption of power.

REFERENCES:
patent: 2756378 (1956-07-01), Scott
patent: 4604555 (1986-08-01), Karaki

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