Patent US5327267A successfully refreshed from Google Patents.
US5327267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dielectric display device having electrodes protected by a static conductor
Assignee: Sharp Corp
•
Filing: 1992-12-01
•
Granted: 1994-07-05
•
Expires: 2012-12-01
Abstract
Abstract A dielectric display device includes a pair of substrates, at least one of which is transparent, spaced in parallel a constant distance apart, and facing each other. A dielectric display material is inserted between the pair of substrates. Further, a pair of electrodes, at least one of which includes a plurality of line (or scanning) electrodes, are disposed on the sides of the substrate facing the other substrate. Finally, a static erasing conductor is disposed extending peripherally along, and spaced a constant distance from, the ends of the electrodes for preventing intrusion of static electricity into electric lead lines.
Inventors
- 👤 Keigo Aoki
- 👤 Yoshinao Ohnuma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:35
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/136; G02F1/1362; G02F1/136204
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
143 words
A dielectric display device comprising: a pair of substrates, at least one of which is transparent, spaced a distance apart, in parallel to each other; a dielectric display material inserted between said pair of substrates; signal and scanning electrodes, at least one of said signal and scanning electrodes including a plurality of electrodes disposed in parallel on one of said pair of substrates; a static erasing conductor disposed peripherally along at least one of said pair substrates, being initially connected to ends of each of said electrodes disposed in parallel to allow for release of static electricity from the electrodes through the connected static erasing conductor, and being subsequently separated by a laser and being maintained at a constant distance from ends of said electrodes disposed in parallel, to thereby shield the electrodes disposed in parallel from subsequent externally generated static electric effects.
Claim 2
Dependent Claim
143 words
A dielectric display device comprising: a pair of substrates, at least one of which is transparent, spaced a distance apart, in parallel to each other; a dielectric display material inserted between said pair of substrates; signal and scanning electrodes, at least one of said signal and scanning electrodes including a plurality of electrodes disposed in parallel on one of said pair of substrates; a static erasing conductor disposed peripherally along at least one of said pair substrates, being initially connected to ends of each of said electrodes disposed in parallel to allow for release of static electricity from the electrodes through the connected static erasing conductor, and being subsequently separated by a laser and being maintained at a constant distance from ends of said electrodes disposed in parallel, to thereby shield the electrodes disposed in parallel from subsequent externally generated static electric effects.
Claim 3
Dependent Claim
123 words
The dielectric display device of claim 1, wherein said plurality of electrodes disposed in parallel comprise a group of scanning electrodes and a group of signal electrodes connected respectively with gate electrodes and source electrodes of thin film transistors (TFTs) disposed on the transparent substrate; each of said scanning electrodes and signal electrodes being connected at one end to a driver integrated circuit for driving scanning electrodes and a driver integrated circuit for driving signal electrodes, respectively; and said static erasing conductor being disposed peripherally along, and spaced at a constant distance from, the other ends of each of the scanning electrodes and signal electrodes to thereby shield each of the scanning electrodes and signal electrodes from subsequent externally generated static electric effects.
Claim 4
Independent Claim
192 words
A method of forming a dielectric display device comprising the steps of: (a) forming a pair of substrates, at least one of which is transparent, in parallel, spaced a constant distance apart; (b) inserting a dielectric display material between the pair of substrates; (c) disposing signal and scanning electrodes on the substrates, at least one of the signal and scanning electrodes including a plurality of electrodes disposed in parallel on one of the pair of substrates; (d) disposing a static erasing conductor peripherally along at least one of the pair of substrates; (e) connecting the static erasing conductor to ends of each of the electrodes disposed in parallel to allow for release of static electricity from the electrodes through the connected static erasing conductor; (f) separating the static erasing conductor from the ends of each of the electrodes disposed in parallel by a laser; and (g) maintaining the separated static erasing conductor, at a constant distance from the ends of each of the electrodes disposed in parallel, peripherally along at least one of the pair of substrates, to thereby shield the electrodes disposed in parallel from subsequent externally generated static electric effects.
Claim 5
Independent Claim
192 words
A method of forming a dielectric display device comprising the steps of: (a) forming a pair of substrates, at least one of which is transparent, in parallel, spaced a constant distance apart; (b) inserting a dielectric display material between the pair of substrates; (c) disposing signal and scanning electrodes on the substrates, at least one of the signal and scanning electrodes including a plurality of electrodes disposed in parallel on one of the pair of substrates; (d) disposing a static erasing conductor peripherally along at least one of the pair of substrates; (e) connecting the static erasing conductor to ends of each of the electrodes disposed in parallel to allow for release of static electricity from the electrodes through the connected static erasing conductor; (f) separating the static erasing conductor from the ends of each of the electrodes disposed in parallel by a laser; and (g) maintaining the separated static erasing conductor, at a constant distance from the ends of each of the electrodes disposed in parallel, peripherally along at least one of the pair of substrates, to thereby shield the electrodes disposed in parallel from subsequent externally generated static electric effects.
Claim 6
Dependent Claim
83 words
The method of claim 3, wherein, said step (c) includes disposing signal and scanning electrodes on the substrates, both of which include a plurality of electrodes disposed in parallel on at least one of the pair of substrates, each of the scanning and signal electrodes being connected at one end to a driver circuit, and wherein said steps (d)-(g) include disposing, connecting, separating, and maintaining, respectively, said static erasing conductor with respect to other ends of each of the scanning and signal electrodes.
References Cited (Backward Citations)
JPS54141155A
Cited
JPH028817A
Cited
JPH02193112A
Cited
JPH02221927A
Cited
JPH03260624A
Cited
US5148299A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-07-04 | 1998-01-03 | 1998-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-07-04 | 2002-01-03 | 2002-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-07-04 | 2006-01-03 | 2006-07-05 | $7700.00 | Window Closed / Lapsed |