Characteristics of vacuum fluorescent display tube

摘要

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for inspecting characteristics of vacuum fluorescent tubes for detecting filament voltage, anode voltage, grid voltage, insulation resistance and electrostatic characteristics of vacuum fluorescent display panels used for displaying numerals or symbols in digital measuring instruments or electronic calculators. The apparatus for inspecting characteristics of a vacuum fluorescent display tube according to the present invention includes a mounting means for mounting a vacuum fluorescent display tube, a lead pin of a vacuum fluorescent display panel while simultaneously applying a filament voltage, an anode voltage, a grid voltage and a ground voltage to the mounting means. Consisting of a lead pin selection signal for sequentially selecting the control signal, a control means for outputting an insulation resistance measurement signal, and an electrostatic measurement means for receiving power from the control means to measure the static electricity of the vacuum fluorescent display tube mounted to the mounting means. According to the present invention, the electrical characteristics inspection of the vacuum fluorescent display tube is collectively performed. There is an effect that can precisely scan the liver.