US5877844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image exposure method using display panel
Assignee: Fujifilm Holdings Corp
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Filing: 1996-06-13
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Granted: 1999-03-02
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Expires: 2016-06-13
Abstract
Abstract An image exposure method using a display panel, for exposing an image onto a photosensitive material by dividing the image into pixels which are arranged in a matrix pattern on the display panel and by adjusting amounts by which light is transmitted through or reflected at the pixels or an amount of emitted light. The method steps include: determining to effect exposure processing a plurality of times when a defective pixel whose amount of transmitted light, reflected light or emitted light cannot be adjusted, exists on the display panel; and effecting exposure processing a plurality of times, wherein the exposure processing of a plurality of times includes exposure with a relative position of a group of pixels arranged in a matrix pattern on the display panel and split images corresponding to the pixels being displaced, and an amount of exposure for each time of exposure processing is an amount given by dividing an overall amount of exposure in accordance with the number of times of displacement. Accordingly, it is no possibility that a specified image depends upon the defective pixel completely, and exposure-dependent ratios can be respectively distributed to the plurality of images.
Inventors
- 👤 Nobuo Matsumoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:26
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/04; H04N1/19; H04N1/1906; G; G03; G03B; G03B27/00; G03B27/72; G03B27/725; H04N1/0461; H04N1/195
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
187 words
An image exposure method using a display panel, for exposing an image onto a photosensitive material by dividing the image into pixels which are arranged in a matrix pattern on the display panel and by adjusting an amount of light which is transmitted through or reflected at the pixels or an amount of emitted light, comprising the steps of: determining whether a defective pixel whose amount of transmitted light, reflected light or emitted light cannot be adjusted, exists on the display panel; and performing exposure processing to expose an image onto the photosensitive material by repeating exposure processing a plurality of separate times, wherein each time the exposure processing is repeated for the plurality of times a group of pixels arranged in a matrix pattern on the display panel is displaced so that split images are formed corresponding to the pixels being displaced, and an amount of exposure for each time of exposure processing corresponds to an overall amount of exposure divided by the number of times of displacement, and the defective pixel is corrected by controlling the exposure amount of peripheral pixels surrounding the defective pixel.
Claim 2
Dependent Claim
187 words
An image exposure method using a display panel, for exposing an image onto a photosensitive material by dividing the image into pixels which are arranged in a matrix pattern on the display panel and by adjusting an amount of light which is transmitted through or reflected at the pixels or an amount of emitted light, comprising the steps of: determining whether a defective pixel whose amount of transmitted light, reflected light or emitted light cannot be adjusted, exists on the display panel; and performing exposure processing to expose an image onto the photosensitive material by repeating exposure processing a plurality of separate times, wherein each time the exposure processing is repeated for the plurality of times a group of pixels arranged in a matrix pattern on the display panel is displaced so that split images are formed corresponding to the pixels being displaced, and an amount of exposure for each time of exposure processing corresponds to an overall amount of exposure divided by the number of times of displacement, and the defective pixel is corrected by controlling the exposure amount of peripheral pixels surrounding the defective pixel.
Claim 3
Dependent Claim
76 words
An image exposure method using a display panel according to claim 1, wherein the defective pixel includes a pixel whose amount of transmitted light, reflected light or emitted light is 0% with respect to the maximum amount Q of transmitted light, reflected light or emitted light, and a pixel whose amount of transmitted light, reflected light or emitted light is 100% with respect to the maximum amount Q of transmitted light, reflected light or emitted light.
Claim 4
Dependent Claim
90 words
An image exposure method using a display panel according to claim 1, wherein displacement of the relative position of the group of pixels arranged in a matrix pattern and the split images is effected by two-dimensionally shifting a display position of the split images corresponding to the matrix-patterned group of pixels and by two-dimensionally shifting the display panel entirely by an amount by which the display position of the split images is shifted, in a direction opposite to that in which the display position of the split images is shifted.
Claim 5
Dependent Claim
90 words
An image exposure method using a display panel according to claim 2, wherein displacement of the relative position of the group of pixels arranged in a matrix pattern and the split images is effected by two-dimensionally shifting a display position of the split images corresponding to the matrix-patterned group of pixels and by two-dimensionally shifting the display panel entirely by an amount by which the display position of the split images is shifted, in a direction opposite to that in which the display position of the split images is shifted.
Claim 6
Dependent Claim
58 words
An image exposure method using a display panel according to claim 1, wherein the number of times of pixel displacement is set one, and the defective pixel is apparently displaced by a pitch of one pixel and is exposed with an amount of exposure, which is a half an appropriate exposure amount, respectively before and after pixel displacement.
Claim 7
Dependent Claim
58 words
An image exposure method using a display panel according to claim 2, wherein the number of times of pixel displacement is set one, and the defective pixel is apparently displaced by a pitch of one pixel and is exposed with an amount of exposure, which is a half an appropriate exposure amount, respectively before and after pixel displacement.
Claim 8
Dependent Claim
58 words
An image exposure method using a display panel according to claim 3, wherein the number of times of pixel displacement is set one, and the defective pixel is apparently displaced by a pitch of one pixel and is exposed with an amount of exposure, which is a half an appropriate exposure amount, respectively before and after pixel displacement.
Claim 9
Dependent Claim
58 words
An image exposure method using a display panel according to claim 4, wherein the number of times of pixel displacement is set one, and the defective pixel is apparently displaced by a pitch of one pixel and is exposed with an amount of exposure, which is a half an appropriate exposure amount, respectively before and after pixel displacement.
Claim 10
Dependent Claim
30 words
An image exposure method using a display panel according to claim 1, wherein the displacement of pixels is effected in any one of a vertical direction and a transverse direction.
Claim 11
Dependent Claim
30 words
An image exposure method using a display panel according to claim 2, wherein the displacement of pixels is effected in any one of a vertical direction and a transverse direction.
Claim 12
Dependent Claim
30 words
An image exposure method using a display panel according to claim 3, wherein the displacement of pixels is effected in any one of a vertical direction and a transverse direction.
Claim 13
Dependent Claim
30 words
An image exposure method using a display panel according to claim 5, wherein the displacement of pixels is effected in any one of a vertical direction and a transverse direction.
Claim 14
Dependent Claim
63 words
An image exposure method using a display panel according to claim 3, wherein an amount by which the display panel shifts for each time is a pitch of n+0.5 pixel (n is 0 or a positive integer), and the defective pixel whose amount of exposure is insufficient or excessive is corrected with an amount of exposure at a position around the defective pixel.
Claim 15
Dependent Claim
63 words
An image exposure method using a display panel according to claim 7, wherein an amount by which the display panel shifts for each time is a pitch of n+0.5 pixel (n is 0 or a positive integer), and the defective pixel whose amount of exposure is insufficient or excessive is corrected with an amount of exposure at a position around the defective pixel.
Claim 16
Dependent Claim
63 words
An image exposure method using a display panel according to claim 11, wherein an amount by which the display panel shifts for each time is a pitch of n+0.5 pixel (n is 0 or a positive integer), and the defective pixel whose amount of exposure is insufficient or excessive is corrected with an amount of exposure at a position around the defective pixel.
Claim 17
Dependent Claim
63 words
An image exposure method using a display panel according to claim 4, wherein an amount by which the display panel shifts for each time is a pitch of n+0.5 pixel (n is 0 or a positive integer), and the defective pixel whose amount of exposure is insufficient or excessive is corrected with an amount of exposure at a position around the defective pixel.
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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) | 2002-03-01 | 2002-08-31 | 2003-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-03-01 | 2006-08-31 | 2007-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-03-01 | 2010-08-31 | 2011-03-02 | $7700.00 | Window Closed / Lapsed |