US4984034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-single-crystalline light emitting semiconductor device matrix with insulation
Assignee: Semiconductor Energy Laboratory Co Ltd
•
Filing: 1988-12-05
•
Granted: 1991-01-08
•
Expires: 2008-12-05
Abstract
Abstract A light emitting semiconductor device which is provided with a first non-single-crystal semiconductor layer, a second non-single-crystal semiconductor layer formed on the first semiconductor layer and a third non-single-crystal semiconductor layer formed on the second semiconductor layer, or a first non-single-crystal semiconductor layer, many second non-single-crystal semiconductor layers formed on the first semiconductor layer and a third non-single-crystal semiconductor layer formed on the first semiconductor layer to cover the second semiconductor layers. The first and second semiconductor layers have either one and the other of p and n conductivity types, respectively. Semiconductors of the first, second and third layers are each doped with a dangling bond and recombination center neutralizer. The semiconductor of the second layer has a smaller energy gap than the semiconductors of the first and third layers.
Inventors
- 👤 Shunpei Yamazaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:22
CPC Classifications
H; H10; H10H; H10H20/00; H10H20/80; H10H20/84; H10H20/81; H10H20/811; H10H20/813; H10H20/817; H10H20/818; H10H29/00; H10H29/10; H10H29/14; H10H29/142
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
87 words
A light emitting semiconductor device comprising: a transparent glass substrate; a plurality of light emitting elements consisting of non-single-crystalline semiconductor which are in the form of a matrix; an insulator disposed between and in direct contact with the side surfaces of said light emitting elements and with which the spaces between said elements are completely filled; and a plurality of column electrode lines and a plurality of row electrode lines for addressing particular elements and causing light emission from said particular elements through said transparent glass substrate.
Claim 2
Dependent Claim
87 words
A light emitting semiconductor device comprising: a transparent glass substrate; a plurality of light emitting elements consisting of non-single-crystalline semiconductor which are in the form of a matrix; an insulator disposed between and in direct contact with the side surfaces of said light emitting elements and with which the spaces between said elements are completely filled; and a plurality of column electrode lines and a plurality of row electrode lines for addressing particular elements and causing light emission from said particular elements through said transparent glass substrate.
Claim 3
Dependent Claim
34 words
The device of claim 1 wherein side and upper surfaces of said light emitting elements are embedded in said insulator which extends on the said side and upper surfaces of said light emitting elements.
Claim 4
Dependent Claim
25 words
The device of claim 1 wherein upper and lower surfaces of said insulator are flat, said column or row lines extending over said flat surfaces.
Claim 5
Dependent Claim
13 words
The device of claim 1 where said insulator is an organic resin layer.
Claim 6
Dependent Claim
72 words
A light emitting semiconductor device of claim 1, wherein the light emitting elements comprise a first non-single crystalline semiconductor layer of a first conductivity type, a second non-single crystalline semiconductor layer formed on the first non-single crystalline semiconductor layer, and a third non-single crystalline semiconductor layer of a second conductivity type opposite to the first conductivity type, said third non-single crystalline semiconductor layer being formed on the second non-single crystalline semiconductor layer.
Claim 7
Dependent Claim
30 words
A light emitting semiconductor device of claim 5, wherein the second non-single crystalline semiconductor layer has a smaller energy band gap than the first and third non-single crystalline semiconductor layers.
Claim 8
Dependent Claim
45 words
A light emitting semiconductor device of claim 5, wherein a band gap of the second non-single crystalline semiconductor layer is equal to a band gap of the first non-single crystalline semiconductor layer and smaller than a bank gap of the third non-single crystalline semiconductor layer.
Claim 9
Dependent Claim
45 words
A light emitting semiconductor device of claim 5, wherein a band gap of the second non-single crystalline semiconductor layer is equal to a band gap of the third non-single crystalline semiconductor layer and smaller than a band gap of the first non-single crystalline semiconductor layer.
Claim 10
Dependent Claim
92 words
A light emitting semiconductor device of claim 1, wherein the light emitting elements comprise a first non-single crystalline semiconductor layer of a first conductivity type, a second and third non-single crystalline semiconductor layer formed on the first non-single crystalline semiconductor layer, and a fourth non-single crystalline semiconductor layer of a second conductivity type opposite to the first conductivity type that is formed on the third non-single crystalline semiconductor layer, wherein the second and third non-single crystalline semiconductor layers have smaller band gaps than the first and fourth non-single crystalline semiconductor semiconductor layers.
References Cited (Backward Citations)
US3500448A
Cited
DE1564424A1
Cited
US4275403A
Cited
US4384299A
Cited
DE2755433A1
Cited
US4217374A
Cited
US4409605A
Cited
US4226898A
Cited
US4194935A
Cited
JPS5529155A
Cited
US4377818A
Cited
US4361887A
Cited
US4369372A
Cited
US4251287A
Cited
US4405915A
Cited
US4527179A
Cited
US4407710A
Cited
JPS60115272A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-01-07 | 1994-07-09 | 1995-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-01-07 | 1998-07-09 | 1999-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-01-07 | 2002-07-09 | 2003-01-08 | $7700.00 | Window Closed / Lapsed |