Process for manufacturing display sheet with many embedded display elements

Abstract

Abstract A process for manufacturing a display sheet made of a rubbery material (14) with many flat display elements (16) of LCD, LED or so on embedded therein for use for electronic devices, by integrally molding it in a press mold from a heat curable molding mass (14) together with the display elements, which comprises, using a press mold having a flat upper mold half and a lower mold half having distributed on its inner surface a number of indentations each having a diametral span smaller than that of the flat display element; placing in each of said indentations a compressible insert; inserting therereon in the indentation a metal support member for supporting the display element upon the molding; placing on each of the metal support members thus inserted in the indentation a flat display element of which side faces and rear surface have been coated with an adhesive and which is encased in a cushioning rim frame made of a material capable of heat curing integrally with the molding mass; placing over the lower mold half now having fitted with the display elements a sheet of the heat curable molding mass having perforations located each at a position adapted for encircling each corresponding display element therein; and press-molding the so composed sheet in the press mold under heat curing of the sheet. The display elements are not recessed from the surface of the sheet. With a complete sealing no intrusion of dust particles and moisture from the atmosphere can occur.

Inventors

• 👤 Takayuki Sekita

Bibliographic Details