Claims
- 1. A flat panel display apparatus comprising:a) a display panel on the front face of said display apparatus, said display panel having an inner surface with a target area for receiving a cathodoluminescent screen, said display panel being composed of a glass having a predetermined coefficient of thermal contraction; and b) a backplane on the rear of said display apparatus, said backplane having an inner surface reflective to electrons, said backplane being composed of a glass having a predetermined coefficient of thermal contraction; and c) a spacing component secured to the inner surfaces of said display panel and said backplane by devitrified solder glass, said spacing component forming a sealed envelope within said apparatus, said spacing component having a net coefficient of thermal contraction which is lower than said predetermined coefficients of thermal contraction of said display panel and said backplane such that after devitrification of said solder glass at an elevated temperature to affix said spacing component to said display panel and said backplane, and subsequent cool-down, said display panel and said backplane are placed under predetermined significant compression.
- 2. The flat panel display apparatus of claim 1, wherein the envelope formed is evacuated.
- 3. The flat panel display apparatus of claim 1, wherein the spacing component is composed of a ceramic, said ceramic comprises:between about 47% and 50% by weight of SiO2; between about 42% and 45% by weight of MgO; about 5% by weight of BaCO3; about 2% by weight of Al2O3; about 1% by weight of Fe2O3; about 0.5% by weight of CaO; and about 0.1% by weight of Ball Clay.
- 4. A flat-panel display apparatus comprising:a) a display panel on the front face of said display apparatus, said display panel having an inner surface with a target area for receiving a cathodoluminescent screen, said display panel being composed of a glass having a predetermined coefficient of thermal contraction; b) a backplane on the read of said display apparatus, said backplane having an inner surface reflective to electrons, said backplane being composed of Invar having a predetermined coefficient of thermal contraction; and c) a spacing component secured to the inner surfaces of said display panel and said backplane by devitrified solder glass, said spacing component forming a sealed envelope within said apparatus, said spacing component having a net coefficient of thermal contraction which is lower than said predetermined coefficients of thermal contraction of said display panel and said backplane such that after devitrification of said solder glass at an elevated temperature to affix said spacing component to said display panel and said backplane, and subsequent cooldown, said display panel and said backplane are placed under predetermined significant compression.
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is related to but in no way dependent upon application Ser. No. 08/576,641 filed Dec. 21, 1995 now U.S. Pat. No. 5,949,395, and Ser. No. 08/735,825 filed Dec. 2, 1996, both of common ownership herewith.
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