ブラウン管用ガラス材料高強度化に関する最近の進歩

抄録

The important thing in order that the CRT still shines brightly for the coming digital era might be to realize a super-lightweight and ultra thin CRT, keeping its advantages such as high image quality and low cost. One of the reasons that CRT is heavy and fragile is due to the high density of CRT glass resulted from its high X-ray absorption ability. However, it might become an impetus for realizing such an innovative CRT by introducing new CRT glass with lower density and lower brittleness. This could be possible if a new electron gun with excellent focusing characteristics even at very low accelerating voltages would be developed. In addition, we have had some advances in strengthening glass material such as field-assisted chemical tempering and improvement of the mechanical strength of a crystalline solder glass. These also will produce a possibility to innovate CRTs.