US6201356B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Converter for correcting resonance frequency between backlit panel assembly of liquid crystal display and transformer of AC inverter
Assignee: Greatchip Tech Co Ltd
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Filing: 1999-10-21
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Granted: 2001-03-13
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Expires: 2019-10-21
Abstract
Abstract The specification discloses a converter for correcting the resonance frequency between the backlit panel assembly of a liquid crystal display and the transformer of an AC inverter. The convert has on its both ends a first connector for plugging in a discharge tube connector and a second connector for plugging in a transformer circuit output connector of the AC inverter. In the middle, a parasitic capacitor correction apparatus connects both connectors to correct the parasitic capacity of the discharge tube. Therefore, the present invention can be applied to any liquid crystal display without employing any extra transformer circuit for the AC inverter. The price of it can be lowered by mass production.
Inventors
- 👤 Masakazu Ushijima
- 👤 Chen-Yong Chang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:56
CPC Classifications
H; H05; H05B; H05B41/00; H05B41/14; H05B41/26; H05B41/28; H05B41/282; H05B41/2821; H05B41/2822; Y; Y10; Y10S; Y10S315/00; Y10S315/07
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
90 words
A converter for correcting the resonance frequency between a backlit panel assembly of a liquid crystal display and a transformer of an AC inverter, comprising: a first connector provided on a first end of said converter, said first connector receiving a discharge tube, a second connector provided on a second end of said converter, said second connector serving as a connector for said transformer of said AC inverter, and a parasitic capacitor correction means provided in a middle portion of said converter between said first connector and said second connector.
Claim 2
Dependent Claim
90 words
A converter for correcting the resonance frequency between a backlit panel assembly of a liquid crystal display and a transformer of an AC inverter, comprising: a first connector provided on a first end of said converter, said first connector receiving a discharge tube, a second connector provided on a second end of said converter, said second connector serving as a connector for said transformer of said AC inverter, and a parasitic capacitor correction means provided in a middle portion of said converter between said first connector and said second connector.
Claim 3
Dependent Claim
51 words
The converter for correcting the resonance frequency between a backlit panel assembly of a liquid crystal display and a transformer of an AC inverter of claim 1 , wherein said parasitic capacity correction apparatus is a set of capacitors in parallel that connect to said first connector and said second connector.
Claim 4
Dependent Claim
51 words
The converter for correcting the resonance frequency between a backlit panel assembly of a liquid crystal display and a transformer of an AC inverter of claim 1 , wherein said parasitic capacity correction apparatus is a set of capacitors in series that connect to said first connector and said second connector.
Claim 5
Dependent Claim
51 words
The converter for correcting the resonance frequency between a backlit panel assembly of a liquid crystal display and a transformer of an AC inverter of claim 1 , wherein said parasitic capacity correction apparatus is a set of inductors in series that connect to said first connector and said second connector.
Claim 6
Dependent Claim
61 words
The converter for correcting the resonance frequency between a backlit panel assembly of a liquid crystal display and a transformer of an AC inverter of claim 1 , wherein said parasitic capacity correction apparatus is a Π shape coupling circuit composed of a serial or parallel combination of capacitors and inductors that connects to said first connector and said second connector.
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) | 2004-03-12 | 2004-09-11 | 2005-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-03-12 | 2008-09-11 | 2009-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-03-12 | 2012-09-11 | 2013-03-13 | $7700.00 | Window Closed / Lapsed |