Etching a substrate: processes – Forming or treating optical article – Phosphor screen
Patent
1998-04-10
2000-08-08
Beck, Shrive
Etching a substrate: processes
Forming or treating optical article
Phosphor screen
216 24, 216 38, 427 66, 427 68, B05D 512, B05D 506
Patent
active
06099746&
ABSTRACT:
An organic electroluminescent device and a method for fabricating the same are disclosed, the method including the steps of (1) forming a plurality of first electrode stripes on a transparent substrate at fixed intervals, (2) forming an array of partition walls made of an electrically insulating material on the first electrode elements; having a trapezoidal structure with the lower side wider than the upper side, (3) forming an organic eletroluminescent multilayer, the second electrode, and the first protection layer in succession on the entire surface including on top of the partition walls, (4) removing upper portions of films, unequivocally including the second electrode layer on top of the partition walls, whereby electrically isolating any two adjacent pixels, and (5) forming the second protection layer on top of the etched-out surface, whereby simplifying fabrication processes, improving product yield and reducing product cost.
REFERENCES:
patent: 5650692 (1997-07-01), Vetanen et al.
patent: 5742129 (1998-04-01), Nagayama et al.
Beck Shrive
Cleveland Michael
LG Electronics Inc.
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