EP0756334A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Light emitting device, electric device provided with the light emitting device, and method of producing the light emitting device
Assignee: Canon Inc
•
Filing: 1996-07-26
•
Granted: —
•
Expires: 2016-07-26
Abstract
Abstract The invention provides a light emitting device with a simple device structure capable of emitting light of various colors. The light emitting device can be produced by simple processing steps: A mold is pressed convex-and-concave against a glass substrate thereby forming a corresponding convex-and-concave structure on the glass substrate; a dielectric layer and a positive electrode layer are successively formed on the glass substrate, thereby forming a positive electrode substrate; a negative electrode substrate provided with a negative electrode layer formed thereon, is prepared; an active layer material is coated on the negative electrode substrate; and the positive and negative electrode substrates are bonded to each other via a spacer.
Inventors
- 👤 Kazuo Isaka
- 👤 Masao Ueki
- 👤 Akihiro Mouri
- 👤 Kazunori Ueno
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-10 00:53
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/10; H05B33/12; H05B33/14; H10; H10K; H10K50/00; H10K50/10; H10K50/11; H10K50/125; H10K50/80; H10K50/85; H10K59/00; H10K59/30; H10K2102/00; H10K2102/301; H10K2102/351; H10K59/35
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
115 words
A light emitting device comprising: a first substrate; a positive electrode layer formed on said first substrate; a second substrate; a negative electrode layer formed on said second substrate; an active layer formed between said positive electrode layer and said negative electrode layer, wherein light emitting regions are formed between said positive and negative electrode layers in such a manner that the distance between said positive and negative electrode layers varies from a light emitting region to another region; and a resin layer disposed either between said first substrate and said positive electrode layer or between said second substrate and said negative electrode layer, to form said light emitting regions in which said distance varies.
Claim 2
Dependent Claim
21 words
A light emitting device according to Claim 1, wherein a convex-and-concave structure is formed on a surface of said resin layer.
Claim 3
Dependent Claim
18 words
A light emitting device according to Claim 1 or 2, wherein said resin layer is a hardening resin.
Claim 4
Dependent Claim
16 words
A light emitting device according to Claim 3, wherein said hardening resin is a photo-setting resin.
Claim 5
Dependent Claim
18 words
A light emitting device according to Claim 3 or 4, wherein said hardening resin is a thermosetting resin.
Claim 6
Dependent Claim
21 words
A light emitting device according to any of Claims 1 to 5, wherein said active layer includes a light emitting layer.
Claim 7
Dependent Claim
26 words
A light emitting device according to Claim 6, wherein said light emitting layer includes at least either a hole injection layer or an electron injection layer.
Claim 8
Dependent Claim
16 words
A light emitting device according to Claim 6, wherein said light emitting layer includes a phosphor.
Claim 9
Dependent Claim
20 words
A light emitting device according to Claim 6, wherein said light emitting layer includes a fluorescent layer including a phosphor.
Claim 10
Dependent Claim
28 words
A light emitting device according to any of Claims 1 to 9, wherein said fluorescent layer is disposed between a hole injection layer and an electron injection layer.
Claim 11
Dependent Claim
29 words
A light emitting device according to any of Claims 1 to 10, wherein there is provided a dielectric layer formed either on said first substrate or said second substrate.
Claim 12
Dependent Claim
35 words
A light emitting device according to any of Claims 1 to 11, wherein light emitting regions in the form of stripes are disposed along lines, said distance being constant within each said light emitting region.
Claim 13
Dependent Claim
24 words
A light emitting device according to any of Claims 1 to 12, wherein said first substrate or said second substrate is transparent to light.
Claim 14
Dependent Claim
33 words
A light emitting device according to any of Claims 1 to 13, wherein said first substrate or said second substrate includes regions whose refractive index varies in response to said light emitting regions.
Claim 15
Dependent Claim
33 words
A light emitting device according to any of Claims 1 to 14, wherein lenses are disposed on either said first substrate or said second substrate, at locations corresponding to said light emitting regions.
Claim 16
Dependent Claim
42 words
A light emitting device according to any of Claims 1 to 15, wherein a light blocking layer is disposed on either said first substrate or said second substrate, said light blocking layer having openings at locations corresponding to said light emitting regions.
Claim 17
Dependent Claim
33 words
A light emitting device according to any of Claims 1 to 16, wherein either said first substrate or said second substrate includes light-blocking partition walls disposed at locations between said light emitting regions.
Claim 18
Dependent Claim
28 words
A light emitting device according to any of Claims 1 to 17, wherein a light scattering layer is disposed on either said first substrate or said second substrate.
Claim 19
Dependent Claim
15 words
A light emitting device according to Claim 18, wherein said light scattering layer includes particles.
Claim 20
Dependent Claim
13 words
An electric device provided with a light emitting device according to Claim 1.
Claim 21
Dependent Claim
32 words
An electric device according to Claim 20, further including liquid crystal shutters disposed on said light emitting device, wherein said liquid crystal shutters are disposed at locations corresponding to light emitting regions.
Claim 22
Dependent Claim
26 words
An electric device according to Claim 20, further including an optical system for directing the light emitted by said light emitting device onto a displaying member.
Claim 23
Dependent Claim
15 words
An electric device according to Claim 20, wherein said electric device is a sensor device.
Claim 24
Independent Claim
118 words
A method of producing a light emitting device, said light emitting device including at least: a first substrate; a positive electrode layer formed on said first substrate; a second substrate; a negative electrode layer formed on said second substrate; and an active layer formed between said positive electrode layer and said negative electrode layer, wherein light emitting regions are formed between said positive and negative electrode layers in such a manner that the distance between said positive and negative electrode layers varies from a light emitting region to another region; said method comprising the steps of: forming a resin layer on either said first substrate or said second substrate; and forming a convex-and-concave structure on said resin layer.
Claim 25
Dependent Claim
40 words
A method of producing a light emitting device, according to Claim 24, wherein said step of forming the convex-and-concave structure includes the step of pressing a mold member having a convex-and-concave structure against the resin layer to form the structure.
Claim 26
Dependent Claim
36 words
A method of producing a light emitting device, according to Claim 24, wherein said step of forming the resin layer includes the step of curing said resin by applying either light or heat to said resin.
Claim 27
Dependent Claim
22 words
A method of producing a light emitting device, according to Claim 24, wherein said mold member is formed by means of etching.
Claim 28
Dependent Claim
42 words
A method of producing a light emitting device, according to Claim 26, wherein said application of light or heat is performed while pressing said mold member having the convex-and-concave structure during said step of forming the convex-and-concave structure on the resin layer.
Claim 29
Dependent Claim
11 words
A light emitting device capable of emitting light with various wavelengths.
Claim 30
Dependent Claim
11 words
A method of producing a light emitting device of Claim 29.
References Cited (Backward Citations)
EP0616488A2
Cited
EP0654833A1
Cited
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.