Matsushita Electronics Corporation

Masao Tokunaga

Shigeya Ashizaki

Masamichi Kimura

Mutsuo Masuda

Making method for a phosphor layer of a small diameter cathode ray tube comprises application of a centrifugal force of above 100G in a direction parallel to the axis of a glass bulb toward its bottom panel to become a face plate, thereby forcedly making sedimentation of phosphor powder onto the inner surface of the bottom panel, and thus, by adoptation of the centrifugal force, a phosphor layer of very fine and dense configuration and uniform thickness is obtainable even using such small medium grain size of phosphor powder of under 4 .mu.m.

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Takatsuki, Japan

Masao Tokunaga