US5598565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for screen power saving
Assignee: Intel Corp
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Filing: 1993-12-29
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Granted: 1997-01-28
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Expires: 2013-12-29
Abstract
Abstract A flat panel display power management system for a flat panel display screen in a portable electronic device is disclosed. The flat panel display power management system is capable of controlling the amount of power delivered to each pixel on the flat panel display screen. The portable electronic device can select a subset of important pixels that will continue to receive more power than the remaining pixels if the flat panel display power management system enters a reduced power mode. When the electronic device system determines that the user has been inactive for a predetermined amount of time or if the user manually requests low power mode, the flat panel display power management system enters the reduced power mode. In the reduced power mode, the flat panel display power management system reduces the power provided to the pixels that are not within the subset of important pixels.
Inventors
- 👤 Dennis Reinhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:49
CPC Classifications
G; G09; G09G; G09G3/00; G09G3/20; G06; G06F; G06F1/00; G06F1/26; G06F1/32; G06F1/3203; G06F1/3206; G06F1/3215; G06F1/3218; G09G2320/00; G09G2320/06; G09G2320/0686; G09G2330/00; G09G2330/02; G09G2330/021; G09G2330/022; G09G2340/00; G09G2340/04; G09G2340/0407; G09G2340/0435; G09G3/22
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
169 words
An apparatus for conserving power in a portable electronic device, said apparatus comprising: a flat panel display system, said flat panel display system providing an output display for said portable electronic device, said flat panel display system comprising a plurality of individual pixels; a flat panel display power management system, said flat panel display power management system coupled to said flat panel display system, said flat panel display power management system providing a controllable amount of power to each of said plurality of individual pixels such that each of said plurality of individual pixels may be displayed at a different level of visibility; a processor in said electronic device; and a software program running on said processor in said portable electronic device, said software program configuring said flat panel display power management system such that said software program determines a subset of said plurality of pixels that will receive more power than pixels not in said subset if said flat panel display power management system enters an active state.
Claim 2
Independent Claim
169 words
An apparatus for conserving power in a portable electronic device, said apparatus comprising: a flat panel display system, said flat panel display system providing an output display for said portable electronic device, said flat panel display system comprising a plurality of individual pixels; a flat panel display power management system, said flat panel display power management system coupled to said flat panel display system, said flat panel display power management system providing a controllable amount of power to each of said plurality of individual pixels such that each of said plurality of individual pixels may be displayed at a different level of visibility; a processor in said electronic device; and a software program running on said processor in said portable electronic device, said software program configuring said flat panel display power management system such that said software program determines a subset of said plurality of pixels that will receive more power than pixels not in said subset if said flat panel display power management system enters an active state.
Claim 3
Independent Claim
139 words
An apparatus for conserving power in a portable electronic device, said apparatus comprising: a flat panel display system, said flat panel display system providing an output display for said portable electronic device, said flat panel display system comprising a plurality of individual pixels; a cursor displayed on said flat panel display system; and a flat panel display power management system, said flat panel display power management system: coupled to said flat panel display system; providing a controllable amount of power to each of said plurality of individual pixels such that each of said plurality Of individual pixels may be displayed at a different level of visibility; and having a default reduced power mode, said default reduced power mode providing more power to a subset of pixels defining a shape around said cursor than to pixels not within said subset.
Claim 4
Independent Claim
139 words
An apparatus for conserving power in a portable electronic device, said apparatus comprising: a flat panel display system, said flat panel display system providing an output display for said portable electronic device, said flat panel display system comprising a plurality of individual pixels; a cursor displayed on said flat panel display system; and a flat panel display power management system, said flat panel display power management system: coupled to said flat panel display system; providing a controllable amount of power to each of said plurality of individual pixels such that each of said plurality Of individual pixels may be displayed at a different level of visibility; and having a default reduced power mode, said default reduced power mode providing more power to a subset of pixels defining a shape around said cursor than to pixels not within said subset.
Claim 5
Independent Claim
124 words
An apparatus for conserving power in a portable electronic device, said apparatus comprising: a flat panel display system, said flat panel display system providing an output display for said portable electronic device, said flat panel display system comprising a plurality of individual pixels; and a flat panel display power management system, said flat panel display power management system: coupled to said flat panel display system; providing a controllable amount of power to each of said plurality of individual pixels such that each of said plurality of individual pixels may be displayed at a different level of visibility; and having an extra low power mode, said extra low power mode turning off all of said plurality of pixels and periodically flashing said subset of pixels.
Claim 6
Independent Claim
124 words
An apparatus for conserving power in a portable electronic device, said apparatus comprising: a flat panel display system, said flat panel display system providing an output display for said portable electronic device, said flat panel display system comprising a plurality of individual pixels; and a flat panel display power management system, said flat panel display power management system: coupled to said flat panel display system; providing a controllable amount of power to each of said plurality of individual pixels such that each of said plurality of individual pixels may be displayed at a different level of visibility; and having an extra low power mode, said extra low power mode turning off all of said plurality of pixels and periodically flashing said subset of pixels.
Claim 7
Dependent Claim
26 words
The apparatus for conserving power in a portable electronic device as claimed in claim 1 wherein said flat panel display system comprises an electroluminescent display system.
Claim 8
Dependent Claim
27 words
The apparatus for conserving power in a portable electronic device as claimed in claim 1 wherein said flat panel display system comprises a field-emission cathode display system.
Claim 9
Dependent Claim
26 words
The apparatus for conserving power in a portable electronic device as claimed in claim 1 wherein said flat panel display system comprises a gas-plasma display system.
Claim 10
Dependent Claim
29 words
The apparatus for conserving power in a portable electronic device as claimed in claim 1 wherein said flat panel display system comprises a Light Emitting Diode (LED) display system.
Claim 11
Independent Claim
92 words
A method for conserving power in a portable electronic device, said method comprising the steps of: selecting a subset of important pixels from a flat panel display system that comprises a plurality of pixels; configuring a flat panel display power management system in said portable electronic device by providing said subset of important pixels to said flat panel display power management system; and entering a reduce power mode wherein said flat panel display power management system provides more power to said subset of important pixels than to pixels not within said subset.
Claim 12
Independent Claim
92 words
A method for conserving power in a portable electronic device, said method comprising the steps of: selecting a subset of important pixels from a flat panel display system that comprises a plurality of pixels; configuring a flat panel display power management system in said portable electronic device by providing said subset of important pixels to said flat panel display power management system; and entering a reduce power mode wherein said flat panel display power management system provides more power to said subset of important pixels than to pixels not within said subset.
Claim 13
Dependent Claim
46 words
The method for conserving power in a portable electronic device as claimed in claim 8 wherein said steps of selecting a subset of important pixels and configuring a flat panel display power management system are performed by a software program running on said portable electronic device.
Claim 14
Dependent Claim
90 words
The method for conserving power in a portable electronic device as claimed in claim 8 wherein said steps of selecting a subset of important pixels and configuring a flat panel display power management system are not performed then said flat panel display power management system enters a default reduced power mode, said default reduced power mode providing more power to a subset of pixels defining a shape around a cursor on said flat panel display than to pixels not in said subset of pixels defining a shape around said cursor.
Claim 15
Dependent Claim
51 words
The method for conserving power in a portable electronic device as claimed in claim 8 wherein said flat panel display power management system further comprises an extra low power mode, said extra low power mode turning off all of said plurality of pixels and periodically flashing said subset of important pixels.
Claim 16
Dependent Claim
26 words
The method for conserving power in a portable electronic device as claimed in claim 9 wherein said flat panel display system comprises an electroluminescent display system.
Claim 17
Dependent Claim
27 words
The method for conserving power in a portable electronic device as claimed in claim 9 wherein said flat panel display system comprises a field-emission cathode display system.
Claim 18
Dependent Claim
26 words
The method for conserving power in a portable electronic device as claimed in claim 9 wherein said flat panel display system comprises a gas-plasma display system.
Claim 19
Dependent Claim
29 words
The method for conserving power in a portable electronic device as claimed in claim 9 wherein said flat panel display system comprises a Light Emitting Diode (LED) display system.
Claim 20
Independent Claim
145 words
An apparatus for conserving power in a portable electronic device, said apparatus comprising the elements of: a flat panel display system, said flat panel display system providing an output display for said portable electronic device, said flat panel display system comprising a plurality of individual pixels; and a flat panel display power management system, said flat panel display power management system coupled to said flat panel display system, said flat panel display power management system providing a controllable amount of power to each of said plurality of individual pixels such that each of said plurality of individual pixels may be displayed at a different level of visibility, said flat panel display power management system also for reducing the rate at which each of said plurality of individual pixels changes display states, allowing each of said plurality of individual pixels to be refreshed at different times.
Claim 21
Independent Claim
145 words
An apparatus for conserving power in a portable electronic device, said apparatus comprising the elements of: a flat panel display system, said flat panel display system providing an output display for said portable electronic device, said flat panel display system comprising a plurality of individual pixels; and a flat panel display power management system, said flat panel display power management system coupled to said flat panel display system, said flat panel display power management system providing a controllable amount of power to each of said plurality of individual pixels such that each of said plurality of individual pixels may be displayed at a different level of visibility, said flat panel display power management system also for reducing the rate at which each of said plurality of individual pixels changes display states, allowing each of said plurality of individual pixels to be refreshed at different times.
Claim 22
Dependent Claim
29 words
The apparatus for conserving power in a portable electronic device as claimed in claim 16 wherein said flat panel display system comprises an active matrix liquid crystal display system.
Claim 23
Dependent Claim
29 words
The apparatus for conserving power in a portable electronic device as claimed in claim 16 wherein said flat panel display system comprises a passive matrix liquid crystal display system.
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) | 2000-01-28 | 2000-07-29 | 2001-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-01-28 | 2004-07-29 | 2005-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-01-28 | 2008-07-29 | 2009-01-28 | $7700.00 | Window Closed / Lapsed |