US5151806A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid crystal display apparatus having a series combination of the storage capacitors
Assignee: Mitsubishi Electric Corp
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Filing: 1991-03-06
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Granted: 1992-09-29
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Expires: 2011-03-06
Abstract
Abstract An active matrix-type liquid crystal display apparatus, in which a pixel electrode and a common electrode line are not overlapped but coupled capacitively by a floating electrode, so that the pixel electrode and common electrode do not short-circuit, and a storage capacitance is formed by the series connection of a plurality of capacitors. An active matrix-type liquid crystal display apparatus, in which a pixel electrode and a gate electrode line at the succeeding or preceeding row are not overlapped but coupled capacitively by a floating electrode, so that the pixel electrode and gate electrode do not short-circuit, and a storage capacitance is formed by the series connection of a plurality of capacitors.
Inventors
- 👤 Satoru Kawamoto
- 👤 Noaki Nakagawa
- 👤 Masahiro Hayama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:46
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/136; G02F1/1362; G02F1/136213; H; H10; H10D; H10D86/00; H10D86/40; H10D86/481; H10D86/60; G02F1/1333; G02F1/1335; G02F1/133509; G02F1/133512
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
173 words
A liquid crystal display apparatus comprising: a TFT (thin film transistor) array in which a plurality of common electrode lines, a plurality of gate electrode lines and a plurality of source electrode lines intersecting said common electrode lines and gate electrode lines are provided on a transparent insulating substrate, with a TFT in the vicinity of each intersection of said gate electrode line and source electrode line, having a pixel electrode corresponding to a pixel connected to a drain electrode of said TFT, said pixel electrode being arranged so as not to overlap with said common electrode line; counter electrodes provided confronting said TFT array; a liquid crystal for display sandwiched between said counter electrodes and TFT array; and a floating electrode arranged to overlap said pixel electrode to form a first storage capacitor and to overlap said common electrode line to form a second storage capacitor so that said pixel electrode and said common electrode line are connected by a series combination of said first storage capacitor and said second storage capacitor.
Claim 2
Dependent Claim
173 words
A liquid crystal display apparatus comprising: a TFT (thin film transistor) array in which a plurality of common electrode lines, a plurality of gate electrode lines and a plurality of source electrode lines intersecting said common electrode lines and gate electrode lines are provided on a transparent insulating substrate, with a TFT in the vicinity of each intersection of said gate electrode line and source electrode line, having a pixel electrode corresponding to a pixel connected to a drain electrode of said TFT, said pixel electrode being arranged so as not to overlap with said common electrode line; counter electrodes provided confronting said TFT array; a liquid crystal for display sandwiched between said counter electrodes and TFT array; and a floating electrode arranged to overlap said pixel electrode to form a first storage capacitor and to overlap said common electrode line to form a second storage capacitor so that said pixel electrode and said common electrode line are connected by a series combination of said first storage capacitor and said second storage capacitor.
Claim 3
Dependent Claim
176 words
A liquid crystal display apparatus comprising: a TFT array including a plurality of common electrode lines, a plurality of gate electrode lines and a plurality of source electrode lines intersecting said common electrode lines and gate electrode lines are provided on a transparent insulating substrate, with a TFT in the vicinity of each intersection of said gate electrode lines and source electrode lines, having a pixel electrode corresponding to a pixel connected to a drain electrode of said TFT, said pixel electrode being arranged so as not to overlap with a common electrode line of said TFT; counter electrodes provided confronting said TFT array; a liquid crystal for display sandwiched between said counter electrodes and TFT array; and a floating electrode arranged to overlap said pixel electrode to form a first storage capacitor and to overlap a gate electrode line of an adjacent TFT to form a second storage capacitor so that said pixel electrode and said gate electrode line are connected by a series combination of said first storage capacitor and said second storage capacitor.
Claim 4
Dependent Claim
176 words
A liquid crystal display apparatus comprising: a TFT array including a plurality of common electrode lines, a plurality of gate electrode lines and a plurality of source electrode lines intersecting said common electrode lines and gate electrode lines are provided on a transparent insulating substrate, with a TFT in the vicinity of each intersection of said gate electrode lines and source electrode lines, having a pixel electrode corresponding to a pixel connected to a drain electrode of said TFT, said pixel electrode being arranged so as not to overlap with a common electrode line of said TFT; counter electrodes provided confronting said TFT array; a liquid crystal for display sandwiched between said counter electrodes and TFT array; and a floating electrode arranged to overlap said pixel electrode to form a first storage capacitor and to overlap a gate electrode line of an adjacent TFT to form a second storage capacitor so that said pixel electrode and said gate electrode line are connected by a series combination of said first storage capacitor and said second storage capacitor.
Claim 5
Dependent Claim
151 words
A liquid crystal display apparatus comprising: a TFT array in which a plurality of gate electrode lines and a plurality of source electrode lines intersecting said gate electrode lines are provided on a transparent insulating substrate, with a TFT provided in the vicinity of each intersection of said gate electrode line and source electrode line, having a pixel electrode corresponding to a pixel connected to a drain electrode of said TFT, said pixel electrode being arranged so as not to overlap with said gate electrode lines; counter electrodes provided confronting said TFT array; a liquid crystal for display sandwiched between said counter electrode and TFT array; and a floating electrode arranged to overlap said pixel electrode to form a first storage capacitor, to overlap said common electrode line to form a second storage capacitor, and to overlap a gate electrode line of an adjacent TFT to form a third storage capacitor.
Claim 6
Dependent Claim
151 words
A liquid crystal display apparatus comprising: a TFT array in which a plurality of gate electrode lines and a plurality of source electrode lines intersecting said gate electrode lines are provided on a transparent insulating substrate, with a TFT provided in the vicinity of each intersection of said gate electrode line and source electrode line, having a pixel electrode corresponding to a pixel connected to a drain electrode of said TFT, said pixel electrode being arranged so as not to overlap with said gate electrode lines; counter electrodes provided confronting said TFT array; a liquid crystal for display sandwiched between said counter electrode and TFT array; and a floating electrode arranged to overlap said pixel electrode to form a first storage capacitor, to overlap said common electrode line to form a second storage capacitor, and to overlap a gate electrode line of an adjacent TFT to form a third storage capacitor.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-09-29 | 1996-03-30 | 1996-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-09-29 | 2000-03-30 | 2000-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-09-29 | 2004-03-30 | 2004-09-29 | $7700.00 | Window Closed / Lapsed |