DocumentCode :
1057153
Title :
Large high-density monolithic XY-addressable arrays for flat-panel LED displays
Author :
Frescura, Bert L. ; Luechinger, Hermann ; Bittmann, Charles A.
Author_Institution :
Hewlett-Packard Laboratories, Palo Alto, CA
Volume :
24
Issue :
7
fYear :
1977
fDate :
7/1/1977 12:00:00 AM
Firstpage :
891
Lastpage :
897
Abstract :
A large-area 
-addressable matrix display has been designed and fabricated. This display consists of 4 tiles, each a ½ in × ½ in array of 30 × 36 LED\´s, end-stacked to form a continuous dot-matrix display, ½ in × 2 in of 30 × 144 LED\´s. This paper discusses the design considerations, the fabrication technique used, and the yields experienced in fabricating these displays. The yield of perfect tiles was 5 percent. Using as an acceptance criteria, tiles with no more than 4 LED\´s either out or dim and using repair techniques described herein, yields of 54 percent have been achieved.
-addressable matrix display has been designed and fabricated. This display consists of 4 tiles, each a ½ in × ½ in array of 30 × 36 LED\´s, end-stacked to form a continuous dot-matrix display, ½ in × 2 in of 30 × 144 LED\´s. This paper discusses the design considerations, the fabrication technique used, and the yields experienced in fabricating these displays. The yield of perfect tiles was 5 percent. Using as an acceptance criteria, tiles with no more than 4 LED\´s either out or dim and using repair techniques described herein, yields of 54 percent have been achieved.Keywords :
Bonding; Calculators; Computer displays; Gallium arsenide; Light emitting diodes; Metallization; Packaging; Stacking; Substrates; Tiles;
fLanguage :
English
Journal_Title :
Electron Devices, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9383
Type :
jour
DOI :
10.1109/T-ED.1977.18848
Filename :
1479040
Link To Document :
