US3892471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodes for liquid crystal components
Assignee: Werk fuer Fernsehelektronik GmbH
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Filing: 1973-11-02
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Granted: 1975-07-01
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Expires: 1993-11-02
Abstract
Abstract A liquid crystal display device having a liquid crystal layer between a pair of electrodes. In one arrangement, one of the electrodes is transparent and the other electrode is either transparent or reflective. One of the electrodes is shaped to divide the display region into small partial regions which are not distinguishable from a normal viewing distance. In another arrangement, the electrodes have a comb-like configuration and are arranged to intermesh with each other to develop a lateral electric field in the liquid crystal material between the electrodes.
Inventors
- 👤 Manfred Biermann
- 👤 Bernd Brauer
- 👤 Wolfgang Heidborn
- 👤 Bernd Monno
- 👤 Klaus Thiessen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:37
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1343; G02F1/134309; G02F2201/00; G02F2201/12; G02F2201/124
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
90 words
In a liquid crystal display device having first and second electrodes, both of the electrodes being optically transparent, and wherein a layer of a liquid crystal material is provided between the electrodes, the improvement comprising first and second spaced apart substrate support plates, the first and second electrodes being on said first and second plates, respectively, and wherein the area of one of said first and second electrodes is separated into a plurality of small partial regions of a size not discernible from a normal viewing distance of said device.
Claim 2
Dependent Claim
90 words
In a liquid crystal display device having first and second electrodes, both of the electrodes being optically transparent, and wherein a layer of a liquid crystal material is provided between the electrodes, the improvement comprising first and second spaced apart substrate support plates, the first and second electrodes being on said first and second plates, respectively, and wherein the area of one of said first and second electrodes is separated into a plurality of small partial regions of a size not discernible from a normal viewing distance of said device.
Claim 3
Dependent Claim
28 words
The device of claim 1 wherein said partial regions are nonconductive regions bounded by conductive electrode regions, said partial regions having widths of between 10 and 100 microns.
Claim 4
Dependent Claim
35 words
The device of claim 2 wherein the conductive portions of said electrodes are of a non-transparent material, said conductive portions forming webs having widths small in proportion to the widths of said nonconductive partial regions.
Claim 5
Dependent Claim
25 words
The device of claim 1 wherein said small partial regions have dimensions whereby the scattering effect voltage characteristic of the liquid crystal material is influenced.
Claim 6
Dependent Claim
96 words
In a liquid crystal display device having first and second electrodes, one of the electrodes being optically transparent and the other being optically reflective, and wherein a layer of a liquid crystal material is provided between the electrodes, the improvement comprising first and second spaced apart substrate support plates, the first and second electrodes being on said first and second plates, respectively, and wherein the area of one of said first and second electrodes is separated into a plurality of small partial regions of a size not discernible from a normal viewing distance of said device.
Claim 7
Dependent Claim
96 words
In a liquid crystal display device having first and second electrodes, one of the electrodes being optically transparent and the other being optically reflective, and wherein a layer of a liquid crystal material is provided between the electrodes, the improvement comprising first and second spaced apart substrate support plates, the first and second electrodes being on said first and second plates, respectively, and wherein the area of one of said first and second electrodes is separated into a plurality of small partial regions of a size not discernible from a normal viewing distance of said device.
Claim 8
Dependent Claim
28 words
The device of claim 5 wherein said partial regions are nonconductive regions bounded by conductive electrode regions, said partial regions having widths of between 10 and 100 microns.
Claim 9
Dependent Claim
35 words
The device of claim 6 wherein the conductive portions of said electrodes are of a non-transparent material, said conductive portions forming webs having widths small in proportion to the widths of said nonconductive partial regions.
Claim 10
Dependent Claim
25 words
The device of claim 5 wherein said small partial regions have dimensions whereby the scattering effect voltage characteristic of the liquid crystal material is influenced.
Claim 11
Dependent Claim
75 words
In a liquid crystal display device of the type having a layer of a liquid crystal material between first and second electrodes to optically influence said material, the improvement comprising first and second substrate supports, the first and second electrodes being positioned on said first and second supports, respectively, and wherein said electrodes are shaped to define partial regions in a display area that are not discernible at a normal viewing distance from said device.
Claim 12
Dependent Claim
75 words
In a liquid crystal display device of the type having a layer of a liquid crystal material between first and second electrodes to optically influence said material, the improvement comprising first and second substrate supports, the first and second electrodes being positioned on said first and second supports, respectively, and wherein said electrodes are shaped to define partial regions in a display area that are not discernible at a normal viewing distance from said device.
Claim 13
Dependent Claim
34 words
The display device of claim 9 wherein one of said electrodes is comprised of a web of conductive material surrounding partial nonconductive areas, said nonconductive areas having widths of between 10 and 100 microns.
Claim 14
Dependent Claim
33 words
The display device of claim 10 wherein said web is formed of a non-transparent conductive material, said web having a width that is small with respect to the width of said partial areas.
Claim 15
Dependent Claim
113 words
In a liquid crystal display device of the type having first and second electrodes and wherein a layer of liquid crystal material is provided between the support plates, whereby the optical properties of the liquid crystal material are dependent upon the potential between the first and second electrodes to provide a visible display; the improvement comprising first and second spaced apart substrate support plates, the first and second electrodes being on said first and second plates, respectively, and wherein one of the electrodes is formed with a plurality of partial non-conductive regions having dimensions thereacross from 10 to 100 microns, said one electrode being comprised of a conductive web bounding said non-conductive regions.
Claim 16
Dependent Claim
113 words
In a liquid crystal display device of the type having first and second electrodes and wherein a layer of liquid crystal material is provided between the support plates, whereby the optical properties of the liquid crystal material are dependent upon the potential between the first and second electrodes to provide a visible display; the improvement comprising first and second spaced apart substrate support plates, the first and second electrodes being on said first and second plates, respectively, and wherein one of the electrodes is formed with a plurality of partial non-conductive regions having dimensions thereacross from 10 to 100 microns, said one electrode being comprised of a conductive web bounding said non-conductive regions.
Claim 17
Dependent Claim
14 words
The liquid crystal display device of claim 12 wherein said conductive web is transparent.
References Cited (Backward Citations)
US3600060A
Cited
US3807831A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-30 | 1978-12-30 | 1979-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-30 | 1982-12-30 | 1983-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-30 | 1986-12-30 | 1987-07-01 | $7700.00 | Window Closed / Lapsed |