New Structure of Gl-Cathode Assembly for High Definition FD-Trinitron CRTs

Abstract

The two separated G 1 electrodes, the non-penetrating shape ceramic disk and so forth materialized a very small aperture G 1. We reduced the short dimension of the G 1 track shape aperture from 0.28 to 0.26 mm. In spite of using an I-cathode and a small aperture G 1, we realized drive characteristics, reliability, and productivity equivalent to those of the conventional structure. This new structure is expected to have higher potential to be improved further.