Gas Electron Phosphor Display Package
Original Publication Date: 1987-Jun-01
Included in the Prior Art Database: 2005-Feb-01
In the gas electron phosphor flat panel display package shown in the drawing, a low cost, deep-drawn aluminum case 10 provides a vacuum- tight, five-sided enclosure. The case is both lightweight and seamless. A flange 12 has been provided to permit ultrasonic seam welding to a copper flange 14 on a glass faceplate 16. Structural support between faceplate 16 and case 10 is provided by a molded epoxy cathode assembly 18. Internal spacers 20 withstand an atmospheric pressure of approximately one ton per square foot, permitting thin lightweight glass to be used for the faceplate 16. Cathode inserts 32 are retained between the spacers 20 in assembly 18. Two-part epoxy compounds, having very low outgassing characteristics as well as a low thermal coefficient of expansion, were chosen for the cathode assembly.