Cathode-ray tube for constituting large picture display apparatu

Details Cathode-ray tube for constituting large picture display apparatu Cathode-ray tube for constituting large picture display apparatu

1983-12-05

1989-03-07

Moore, David K.

Electric lamp and discharge devices

Cathode ray tube

Ray generating or control

313461, 358240, H01J 2910, H01J 2948

Patent

active

048109282

ABSTRACT:
In a CRT for constituting a display apparatus in which the fluorescent screen is composed of a large number of CRTs arranged in the matrix form, a plurality of holes for passing an electron beam are provided in an electrode for controlling the electron beam which is so placed as to confront the cathode for emitting the electron beam, for the purpose of attaining improved modulation characteristics and a simplified drive circuit requiring lower power consumption. A plurality of fluorescent screens having individual luminous colors are formed on respective portions obtained by dividing the inside of the panel of said CRT and individual electron beams are respectively applied to those fluorescent screens, resulting in a picture of good quality because of increased picture elements.

REFERENCES:
patent: 2681946 (1954-06-01), Leverenz
patent: 3573528 (1971-04-01), Maeda
patent: 4317065 (1982-02-01), Hughes
patent: 4368485 (1983-01-01), Midland

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