Claims
- 1. An electroluminescent device of compound semiconductor having a plurality of electroluminescent portions comprising:
- a semiconductor substrate having a plurality of through-holes bored therein;
- an electroluminescent device layer formed of a plurality of epitaxially grown layers on said substrate;
- a plurality of first electrodes being directly connected to said electroluminescent device layer through each of said through-holes;
- a second electrode being formed opposite to said first electrodes with said electroluminescent device layer sandwiched between said first and second electrodes; and
- a plurality of grooves formed on the surface opposite to the substrate, said grooves dividing said electroluminescent device layer into the plurality of electroluminescent portions, and said grooves having a thickness which is thinner than a thickness of said electroluminescent device layer, said grooves extending to a lighting layer in said electroluminescent device layer.
- 2. An electroluminescent device of claim 1, wherein said substrate has a resistance of 10.sup.6 to 10.sup.8 .OMEGA..multidot.cm.
- 3. An electroluminescent device of claim 2, which comprises a substrate having a plurality of grooves extending to through-holes and a first electrode connecting a lead line formed in said through holes and said grooves.
Priority Claims (1)
Number |
Date |
Country |
Kind |
63-110910 |
May 1988 |
JPX |
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Parent Case Info
This application is a continuation-in-part of application Ser. No. 07/635,424 filed on Jan. 3, 1991, now abandoned; which was a continuation of application Ser. No. 07/347,274 filed on May 4, 1989, now abandoned.
US Referenced Citations (10)
Foreign Referenced Citations (6)
Number |
Date |
Country |
0310353 |
Apr 1989 |
EPX |
0057126 |
Jan 1974 |
FRX |
3436927 |
Apr 1986 |
DEX |
58-68990 |
Apr 1983 |
JPX |
60-81876 |
May 1985 |
JPX |
1031043 |
Jan 1966 |
CHX |
Continuations (2)
|
Number |
Date |
Country |
Parent |
635424 |
Jan 1991 |
|
Parent |
347274 |
May 1989 |
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