Etching a substrate: processes – Forming or treating optical article
Patent
1995-03-20
1997-05-06
Powell, William
Etching a substrate: processes
Forming or treating optical article
216 33, 216 39, 349 32, 428163, 428164, B44C 122
Patent
active
056267720
ABSTRACT:
A flat display device preferably of the PALC type in which a fragile micro-sheet covering the plasma channels is replaced by a more robust plate having etched spaced elongated cavities configured in such a way that the top portions of the plate between side walls of each cavity defining a channel and facing the bottom plate are substantially flat. Preferably, the thickness of the glass top plate separating each plasma discharge from an electro-optic pixel is made substantially uniformly thin while the side walls reinforce and greatly increase the strength of the plate making it less prone to breakage during assembly of a display panel. Preferably, the glass plate is etched by means of a plasma etching process.
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patent: 5100498 (1992-03-01), Takeuchi et al.
patent: 5214521 (1993-05-01), Kwon et al.
patent: 5272472 (1993-12-01), Buzak
patent: 5276384 (1994-01-01), Martin
Buzak et al, "A 16-Inch Full Color Plasma Addressed Liquid Crystal Display", Digest of Tech. Papers, 1993 SID Int. Symp., Soc. for Info. Disp. pp. 883-886.
Bongaerts Petrus F. G.
Bruinink Jacob
Burgmans Adrianus L. J.
Buzak Thomas S.
Ilcisin Kevin J.
Fox John C.
Philips Electronics North America Corporation
Powell William
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