Thin-film electroluminescent display panel sealed by glass subst

Details Thin-film electroluminescent display panel sealed by glass subst Thin-film electroluminescent display panel sealed by glass subst

1978-06-14

1980-07-15

Demeo, Palmer C.

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

29588, 313232, 313512, H05B 3304, H05B 3310

Patent

active

042130743

ABSTRACT:
A thin-film electroluminescent display panel is sealed by a pair of glass substrates for protecting itself from the environment. A protective liquid is introduced between a counter glass substrate and a substrate for supporting the electroluminescent display panel. The protective liquid comprises silicon oil or grease which assures the thin-film electroluminescent panel of preservation of the electroluminescent display panel. The counter glass substrate is bonded to the substrate through an adhesive of, for example, photocuring resin. A capillary tube is provided within the substrate for injecting the liquid under vacuum conditions. The counter glass substrate can be plate-shaped thereby eliminating a spacer. The liquid has the ability of spreading into pin holes generated on dielectric layers, and is resistant to high voltage, high humidity and high temperature, and is inert to layers constituting the thin-film electroluminescent display panel and has a small vapor pressure and a small coefficient of thermal expansion.

REFERENCES:
patent: 3166687 (1965-01-01), Veres
patent: 3393337 (1968-07-01), Panerai et al.
patent: 3398322 (1968-08-01), Guenther

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