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US6084567A
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Image displaying method and apparatus
Assignee: Fujifilm Holdings Corp
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Filing: 1996-11-25
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Granted: 2000-07-04
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Expires: 2016-11-25
Abstract
Abstract A gradation converting process is carried out on an image signal and in accordance with a predetermined gradation converting table, and a visible image, which is represented by an image signal having been obtained from the gradation converting process, is displayed on an image displaying device. In the gradation converting process, the amount of depletion of luminance of the image displaying device is detected, and the gradation converting table is corrected in accordance with the detected amount of depletion of luminance such that the depletion of luminance of the image displaying device may be compensated for. A visible image having good image quality is thereby displayed on the image displaying device regardless of depletion of luminance of the image displaying device.
Inventors
- 👤 Eiji Ogawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 23:04
CPC Classifications
G; G09; G09G; G09G5/00; G09G5/003; G06; G06F; G06F3/00; G06F3/14; G09G2320/00; G09G2320/02; G09G2320/0271; G09G2320/0276; G09G2320/0285; G09G2320/04; G09G2320/043; G09G2320/06; G09G2320/0693
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
119 words
An image displaying method, wherein a gradation converting process is carried out on an image signal in accordance with a predetermined gradation converting table, and a visible image, which is represented by an image signal having been obtained from the gradation converting process, is displayed on an image displaying means, the method comprising the steps of: i) detecting an amount of depletion of luminance of the image displaying means, said depletion changing luminance characteristics of the image displaying means, and correcting the gradation converting table in accordance with said detected amount of depletion of luminance and an image density of an image to be reproduced such that the depletion of luminance of the image displaying means is substantially compensated.
Claim 2
Dependent Claim
119 words
An image displaying method, wherein a gradation converting process is carried out on an image signal in accordance with a predetermined gradation converting table, and a visible image, which is represented by an image signal having been obtained from the gradation converting process, is displayed on an image displaying means, the method comprising the steps of: i) detecting an amount of depletion of luminance of the image displaying means, said depletion changing luminance characteristics of the image displaying means, and correcting the gradation converting table in accordance with said detected amount of depletion of luminance and an image density of an image to be reproduced such that the depletion of luminance of the image displaying means is substantially compensated.
Claim 3
Dependent Claim
87 words
A method as defined in claim 1 wherein a corrected gradation converting table, which is obtained from the correction of the gradation converting table, has characteristics for converting the gradation of the image signal such that the image information represented by a predetermined level of the image signal may be displayed on the image displaying means and with approximately the same level of gradation as the level of gradation, which is displayed on the image displaying means before the luminance of the image displaying means is depleted.
Claim 4
Dependent Claim
59 words
A method as defined in claim 1 wherein a corrected gradation converting table, which is obtained from the correction of the gradation converting table, has characteristics for converting the gradation of the image signal such that the gradation of the image signal displayed on the image displaying means may become linear over the entire range of the image signal.
Claim 5
Dependent Claim
148 words
An image displaying apparatus, wherein a gradation converting process is carried out on an image signal and in accordance with a predetermined gradation converting table, and a visible image, which is represented by an image signal having been obtained from the gradation converting process, is displayed on an image displaying means, the apparatus comprising: i) a detection means for detecting an amount of depletion of luminance of the image displaying means, said depletion changing luminance characteristics of the image displaying means, ii) a storage means for storing information representing at least a single corrected gradation converting table, which has been determined previously in accordance with the amount of depletion of luminance, and iii) a selection means for selecting a corrected gradation converting table from said storage means and in accordance with said detected amount of depletion of luminance and an image density of an image to be reproduced.
Claim 6
Dependent Claim
148 words
An image displaying apparatus, wherein a gradation converting process is carried out on an image signal and in accordance with a predetermined gradation converting table, and a visible image, which is represented by an image signal having been obtained from the gradation converting process, is displayed on an image displaying means, the apparatus comprising: i) a detection means for detecting an amount of depletion of luminance of the image displaying means, said depletion changing luminance characteristics of the image displaying means, ii) a storage means for storing information representing at least a single corrected gradation converting table, which has been determined previously in accordance with the amount of depletion of luminance, and iii) a selection means for selecting a corrected gradation converting table from said storage means and in accordance with said detected amount of depletion of luminance and an image density of an image to be reproduced.
Claim 7
Dependent Claim
76 words
An apparatus as defined in claim 4 wherein the corrected gradation converting table has characteristics for converting the gradation of the image signal such that the image information represented by a predetermined level of the image signal may be displayed on the image displaying means and with approximately the same level of gradation as the level of gradation, which is displayed on the image displaying means before the luminance of the image displaying means is depleted.
Claim 8
Dependent Claim
48 words
An apparatus as defined in claim 4 wherein the corrected gradation converting table has characteristics for converting the gradation of the image signal such that the gradation of the image signal displayed on the image displaying means may become linear over the entire range of the image signal.
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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) | 2003-07-04 | 2004-01-03 | 2004-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-07-04 | 2008-01-03 | 2008-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-07-04 | 2012-01-03 | 2012-07-04 | $7700.00 | Window Closed / Lapsed |