US4634227A
Expired / Lapsed
US
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Optical modulating device having projection on substrate for registration
Assignee: Canon Inc
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Filing: 1984-07-19
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Granted: 1987-01-06
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Expires: 2004-07-19
Abstract
Abstract An optical modulator having a layer of optical modulating substance between a pair of electrode-supporting plates is provided, which is characterized in that at least one of the electrode-supporting plates is provided with a mark for registration and the other substrate is provided with a projection for registration at the position corresponding to that of the mark for registration.
Inventors
- 👤 Norihisa Nishimura
- 👤 Yuko Suga
- 👤 Takeshi Miyachi
- 👤 Yuichi Masaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:43
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/136; G02F1/1362; G02F1/1368; G02F1/1333; G02F1/1339; G02F1/13394; G02F1/133354
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
57 words
An optical modulating device having a layer of optical modulating substance between a pair of electrode-supporting plates, characterized in that at least one of the electrode-supporting plates is provided with a mark for registration and the other electrode-supporting plate is provided with a projection for registration at the position corresponding to that of the mark for registration.
Claim 2
Dependent Claim
57 words
An optical modulating device having a layer of optical modulating substance between a pair of electrode-supporting plates, characterized in that at least one of the electrode-supporting plates is provided with a mark for registration and the other electrode-supporting plate is provided with a projection for registration at the position corresponding to that of the mark for registration.
Claim 3
Dependent Claim
28 words
The optical modulating device of claim 1, wherein the projection for registration has the function of a spacer for maintaining the gap between the pair of electrode-supporting plates.
Claim 4
Dependent Claim
17 words
The optical modulating device of claim 1, wherein the projection for registration is formed of a resin.
Claim 5
Dependent Claim
18 words
The optical modulating device of claim 3, wherein the resin is a photo-resist resin cured by light irradiation.
Claim 6
Dependent Claim
17 words
The optical modulating device of claim 3, wherein the resin is a thermosetting resin cured by heating.
Claim 7
Dependent Claim
19 words
The optical modulating device of claim 1, wherein the layer of optical modulating substance is a liquid crystal layer.
Claim 8
Dependent Claim
21 words
The optical modulating device of claim 1, wherein one of the pair of electrode-supporting plates is provided with striped color filters.
Claim 9
Dependent Claim
33 words
The optical modulating device of claim 7, wherein the color filters comprise groups of red filters, groups of blue filters, and groups of green filters, ech group of which is arranged in stripe.
Claim 10
Dependent Claim
22 words
The optical modulating device of claim 1, wherein one of the pair of electrode-supporting plates is provided with color filters in mosaic.
Claim 11
Dependent Claim
31 words
The optical modulating device of claim 9, wherein the color filters comprise groups of red filters, group of blue filters, and groups of green filters, the filters being arranged in mosaic.
Claim 12
Dependent Claim
107 words
An optical modulating device comprising a pair of substrates and a liquid crystal therebetween, one of the substrates supporting, on the inner side, transistors disposed in matrix form which have each a gate, a source, and a drain as terminals, a segment electrode which forms one display unit being disposed onto the source or drain, the other substrate supporting, on the inner side, a counter electrode opposed to the segment electrodes, characterized in that a mark for registration is put onto one of the substrates and a projection for registration is formed on the other substrate at the position corresponding to that of the mark for registration.
Claim 13
Dependent Claim
107 words
An optical modulating device comprising a pair of substrates and a liquid crystal therebetween, one of the substrates supporting, on the inner side, transistors disposed in matrix form which have each a gate, a source, and a drain as terminals, a segment electrode which forms one display unit being disposed onto the source or drain, the other substrate supporting, on the inner side, a counter electrode opposed to the segment electrodes, characterized in that a mark for registration is put onto one of the substrates and a projection for registration is formed on the other substrate at the position corresponding to that of the mark for registration.
Claim 14
Dependent Claim
27 words
The optical modulating device of claim 11, wherein the projection for registration has the function a spacer for maintaining the predetermined gap between the pair of substrates.
Claim 15
Dependent Claim
17 words
The optical modulating device of claim 11, wherein the projection for registration is formed of a resin.
Claim 16
Dependent Claim
18 words
The optical modulating device of claim 13, wherein the resin is a photo-resist resin cured by light irradiation.
Claim 17
Dependent Claim
17 words
The optical modulating device of claim 13, wherein the resin is a thermosetting resin cured by heating.
Claim 18
Dependent Claim
16 words
The optical modulating device of claim 11, wherein the counter electrode is provided with color filters.
Claim 19
Dependent Claim
30 words
The optical modulating device of claim 16, wherein the color filters comprise groups of red filters, blue filters, and green filters each group of which is arranged in a stripe.
Claim 20
Dependent Claim
32 words
The optical modulating device of claim 16, wherein the color filters comprises groups of red filters, blue filters, green filters, and black filters each group of which are arranged in a stripe.
Claim 21
Dependent Claim
29 words
The optical modulating device of claim 16, wherein the color filters comprise groups of red filters, blue filters, and green filters each group of which are arranged in mosaic.
Claim 22
Dependent Claim
35 words
The optical modulating device of claim 11, wherein a spacer or spacers for the pair of base plates are disposed along gate wires connected to the gates or along source wires connected to the sources.
Claim 23
Dependent Claim
25 words
The optical modulating device of claim 20, wherein the spacer is formed of the same kind of resin as that forming the projection for registration.
Claim 24
Dependent Claim
14 words
The optical modulating device of claim 11, wherein the transistors are thin film transistors.
Claim 25
Dependent Claim
18 words
The optical modulating device of claim 22, wherein the thin film transistors comprise amorphous silicon as a semiconductor.
Claim 26
Dependent Claim
92 words
An optical modulating device comprising a pair of substrate and a liquid crystal therebetween, one of the substrate being provided with switching elements arranged in matrix form and with segment electrodes connected respectively to the switching elements, the other substrate supporting a counter electrode and being provided with color filters opposing respectively to the segment electrodes, characterized in that a mark for registration is put onto one of the substrates and a projection for registration is formed on the other substrates at the position corresponding to that of the mark for registration.
Claim 27
Dependent Claim
92 words
An optical modulating device comprising a pair of substrate and a liquid crystal therebetween, one of the substrate being provided with switching elements arranged in matrix form and with segment electrodes connected respectively to the switching elements, the other substrate supporting a counter electrode and being provided with color filters opposing respectively to the segment electrodes, characterized in that a mark for registration is put onto one of the substrates and a projection for registration is formed on the other substrates at the position corresponding to that of the mark for registration.
Claim 28
Dependent Claim
16 words
The optical modulating device of claim 24, wherein a plurality of projections for registration are disposed.
Claim 29
Dependent Claim
46 words
The optical modulating device of claim 24, wherein a plurality of color filters are disposed each color filter having a corresponding segment electrode and the color filters comprise groups of red filters, blue filters, and green filters each group of which is arranged in a stripe.
Claim 30
Dependent Claim
44 words
The optical modulating device of claim 24, wherein a plurality of color filters are disposed per each of the segment electrodes and the color filters comprise groups of red filters, blue filters, and green filters each group of which are arranged in a mosaic.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-01-05 | 1990-07-07 | 1991-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-01-05 | 1994-07-07 | 1995-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-01-05 | 1998-07-07 | 1999-01-06 | $7700.00 | Window Closed / Lapsed |