Patent US6229508B1 successfully refreshed from Google Patents.
US6229508B1
Expired / Lapsed
US
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Active matrix light emitting diode pixel structure and concomitant method
Assignee: Mec Management LLC
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Filing: 1998-09-28
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Granted: 2001-05-08
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Expires: 2018-09-28
Abstract
Abstract LED pixel structures and methods that improve brightness uniformity by reducing current nonuniformities in a light-emitting diode of the pixel structures are disclosed.
Inventors
- 👤 Michael Gillis Kane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:02
CPC Classifications
G; G09; G09G; G09G3/00; G09G3/20; G09G3/22; G09G3/30; G09G3/32; G09G3/3208; G09G3/3275; G09G3/3291; G09G3/3225; G09G3/3233; G09G2300/00; G09G2300/08; G09G2300/0809; G09G2300/0819; G09G2300/0842; G09G2300/0861; G09G2300/088; G09G2300/089; G09G2310/00; G09G2310/02; G09G2310/0243; G09G2310/0248; G09G2310/0251; G09G2310/0254; G09G2310/0264; G09G2310/027; G09G2310/06; G09G2310/061; G09G2320/00; G09G2320/02; G09G2320/0233; G09G2320/0238; G09G2320/0285; G09G2320/029; G09G2320/0295; G09G2320/04; G09G2320/043; G09G2360/00; G09G2360/14; G09G2360/145; G09G2360/16
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
257 words
A display comprising at least one pixel, said pixel comprising: a first transistor having a gate, a source and a drain, where said gate is for coupling to a first select line; a capacitor having a first and second terminals, where said drain of said first transistor is coupled to said first terminal of said capacitor; a second transistor having a gate, a source and a drain, where said drain of said first transistor is coupled to said drain of said second transistor, where said gate of said second transistor is for coupling to an autozero line; a third transistor having a gate, a source and a drain, where said source of said third transistor is coupled to said drain of said second transistor, where said gate of said third transistor is for coupling to a second select line; a fourth transistor having a gate, a source and a drain, where said drain of said fourth transistor is coupled to said source of said second transistor, where said gate of said fourth transistor is coupled to said source of said first transistor; a fifth transistor having a gate, a source and a drain, where said drain of said fifth transistor is coupled to said drain of said third transistor, where said gate of said fifth transistor is coupled to said source of said first transistor; and a light element having two terminals, where said source of said fourth transistor and said source of said fifth transistor are coupled to one of said terminal of said light element.
Claim 2
Dependent Claim
257 words
A display comprising at least one pixel, said pixel comprising: a first transistor having a gate, a source and a drain, where said gate is for coupling to a first select line; a capacitor having a first and second terminals, where said drain of said first transistor is coupled to said first terminal of said capacitor; a second transistor having a gate, a source and a drain, where said drain of said first transistor is coupled to said drain of said second transistor, where said gate of said second transistor is for coupling to an autozero line; a third transistor having a gate, a source and a drain, where said source of said third transistor is coupled to said drain of said second transistor, where said gate of said third transistor is for coupling to a second select line; a fourth transistor having a gate, a source and a drain, where said drain of said fourth transistor is coupled to said source of said second transistor, where said gate of said fourth transistor is coupled to said source of said first transistor; a fifth transistor having a gate, a source and a drain, where said drain of said fifth transistor is coupled to said drain of said third transistor, where said gate of said fifth transistor is coupled to said source of said first transistor; and a light element having two terminals, where said source of said fourth transistor and said source of said fifth transistor are coupled to one of said terminal of said light element.
Claim 3
Dependent Claim
17 words
The display of claim 1 , wherein said light element is an organic light emitting diode (OLED).
Claim 4
Dependent Claim
16 words
The display of claim 1 , wherein said transistors are thin film transistors constructed from amorphous-silicon.
Claim 5
Dependent Claim
19 words
The display of claim 1 , wherein said second select line is an autozero line from a previous row.
Claim 6
Dependent Claim
257 words
A display comprising at least one pixel, said pixel comprising: a first transistor having a gate, a source and a drain, where said gate is for coupling to a first select line; a capacitor having a first and second terminals, where said drain of said first transistor is coupled to said first terminal of said capacitor; a second transistor having a gate, a source and a drain, where said source of said first transistor is coupled to said source of said second transistor, where said gate of said second transistor is for coupling to an autozero line; a third transistor having a gate, a source and a drain, where said source of said third transistor is coupled to said drain of said second transistor, where said gate of said third transistor is for coupling to a second select line; a fourth transistor having a gate, a source and a drain, where said drain of said fourth transistor is coupled to said source of said third transistor, where said gate of said fourth transistor is coupled to said source of said first transistor; a fifth transistor having a gate, a source and a drain, where said drain of said fifth transistor is coupled to said drain of said third transistor, where said gate of said fifth transistor is coupled to said source of said first transistor; and a light element having two terminals, where said source of said fourth transistor and said source of said fifth transistor are coupled to one of said terminal of said light element.
Claim 7
Dependent Claim
257 words
A display comprising at least one pixel, said pixel comprising: a first transistor having a gate, a source and a drain, where said gate is for coupling to a first select line; a capacitor having a first and second terminals, where said drain of said first transistor is coupled to said first terminal of said capacitor; a second transistor having a gate, a source and a drain, where said source of said first transistor is coupled to said source of said second transistor, where said gate of said second transistor is for coupling to an autozero line; a third transistor having a gate, a source and a drain, where said source of said third transistor is coupled to said drain of said second transistor, where said gate of said third transistor is for coupling to a second select line; a fourth transistor having a gate, a source and a drain, where said drain of said fourth transistor is coupled to said source of said third transistor, where said gate of said fourth transistor is coupled to said source of said first transistor; a fifth transistor having a gate, a source and a drain, where said drain of said fifth transistor is coupled to said drain of said third transistor, where said gate of said fifth transistor is coupled to said source of said first transistor; and a light element having two terminals, where said source of said fourth transistor and said source of said fifth transistor are coupled to one of said terminal of said light element.
Claim 8
Dependent Claim
17 words
The display of claim 5 , wherein said light element is an organic light emitting diode (OLED).
Claim 9
Dependent Claim
19 words
The display of claim 5 , wherein said second select line is an autozero line from a previous row.
Claim 10
Independent Claim
273 words
A system comprising: a display controller; and a display, coupled to said display controller, where said display comprises a plurality of pixels, where each pixel comprises: a first transistor having a gate, a source and a drain, where said gate is for coupling to a first select line; a capacitor having a first and second terminals, where said drain of said first transistor is coupled to said first terminal of said capacitor; a second transistor having a gate, a source and a drain, where said source of said first transistor is coupled to said source of said second transistor, where said gate of said second transistor is for coupling to an autozero line; a third transistor having a gate, a source and a drain, where said source of said third transistor is coupled to said drain of said second transistor, where said gate of said third transistor is for coupling to a second select line; a fourth transistor having a gate, a source and a drain, where said drain of said fourth transistor is coupled to said source of said third transistor, where said gate of said fourth transistor is coupled to said source of said first transistor; a fifth transistor having a gate, a source and a drain, where said drain of said fifth transistor is coupled to said drain of said third transistor, where said gate of said fifth transistor is coupled to said source of said first transistor; and a light element having two terminals, where said source of said fourth transistor and said source of said fifth transistor are coupled to one of said terminal of said light element.
Claim 11
Independent Claim
273 words
A system comprising: a display controller; and a display, coupled to said display controller, where said display comprises a plurality of pixels, where each pixel comprises: a first transistor having a gate, a source and a drain, where said gate is for coupling to a first select line; a capacitor having a first and second terminals, where said drain of said first transistor is coupled to said first terminal of said capacitor; a second transistor having a gate, a source and a drain, where said source of said first transistor is coupled to said source of said second transistor, where said gate of said second transistor is for coupling to an autozero line; a third transistor having a gate, a source and a drain, where said source of said third transistor is coupled to said drain of said second transistor, where said gate of said third transistor is for coupling to a second select line; a fourth transistor having a gate, a source and a drain, where said drain of said fourth transistor is coupled to said source of said third transistor, where said gate of said fourth transistor is coupled to said source of said first transistor; a fifth transistor having a gate, a source and a drain, where said drain of said fifth transistor is coupled to said drain of said third transistor, where said gate of said fifth transistor is coupled to said source of said first transistor; and a light element having two terminals, where said source of said fourth transistor and said source of said fifth transistor are coupled to one of said terminal of said light element.
Claim 12
Independent Claim
273 words
A system comprising: a display controller; and a display, coupled to said display controller, where said display comprises a plurality of pixels, where each pixel comprises: a first transistor having a gate, a source and a drain, where said gate is for coupling to a first select line; a capacitor having a first and second terminals, where said drain of said first transistor is coupled to said first terminal of said capacitor; a second transistor having a gate, a source and a drain, where said drain of said first transistor is coupled to said drain of said second transistor, where said gate of said second transistor is for coupling to an autozero line; a third transistor having a gate, a source and a drain, where said source of said third transistor is coupled to said drain of said second transistor, where said gate of said third transistor is for coupling to a second select line; a fourth transistor having a gate, a source and a drain, where said drain of said fourth transistor is coupled to said source of said second transistor, where said gate of said fourth transistor is coupled to said source of said first transistor; a fifth transistor having a gate, a source and a drain, where said drain of said fifth transistor is coupled to said drain of said third transistor, where said gate of said fifth transistor is coupled to said source of said first transistor; and a light element having two terminals, where said source of said fourth transistor and said source of said fifth transistor are coupled to one of said terminal of said light element.
Claim 13
Independent Claim
273 words
A system comprising: a display controller; and a display, coupled to said display controller, where said display comprises a plurality of pixels, where each pixel comprises: a first transistor having a gate, a source and a drain, where said gate is for coupling to a first select line; a capacitor having a first and second terminals, where said drain of said first transistor is coupled to said first terminal of said capacitor; a second transistor having a gate, a source and a drain, where said drain of said first transistor is coupled to said drain of said second transistor, where said gate of said second transistor is for coupling to an autozero line; a third transistor having a gate, a source and a drain, where said source of said third transistor is coupled to said drain of said second transistor, where said gate of said third transistor is for coupling to a second select line; a fourth transistor having a gate, a source and a drain, where said drain of said fourth transistor is coupled to said source of said second transistor, where said gate of said fourth transistor is coupled to said source of said first transistor; a fifth transistor having a gate, a source and a drain, where said drain of said fifth transistor is coupled to said drain of said third transistor, where said gate of said fifth transistor is coupled to said source of said first transistor; and a light element having two terminals, where said source of said fourth transistor and said source of said fifth transistor are coupled to one of said terminal of said light element.
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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) | 2004-05-07 | 2004-11-06 | 2005-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-05-07 | 2008-11-06 | 2009-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-05-07 | 2012-11-06 | 2013-05-08 | $7700.00 | Window Closed / Lapsed |