Defective pixel specifying method, defective pixel specifying system, image correcting method, and image correcting system
First Claim
1. A driving method of a device comprising a pixel portion, wherein the pixel portion includes a display element and a photoelectric conversion element, the method comprising:
- obtaining a first signal by the pixel portion;
obtaining a second signal by the pixel portion;
obtaining a third signal by the pixel portion;
correcting the third signal using the first signal and the second signal; and
displaying an image on the pixel portionwherein the first signal is almost the same as a signal obtained by reading a black calibration sheet, and the second signal is almost the same as a signal obtained by reading a white calibration sheet.
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Abstract
A defective pixel specifying method and a defective pixel specifying system for a semiconductor device having a defective pixel are provided. Also provided are an image correcting method and an image correcting system for making a defective pixel inconspicuous on the screen when a read image is displayed. The present invention determines whether or not there is a defective pixel for each pixel and specifies the coordinate of the defective pixel using image signals obtained by reading a plurality of images. The image signal of the defective pixel is set based on the image signals of the pixels adjacent to the defective pixel to correct the image of the subject read.
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Citations
18 Claims
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1. A driving method of a device comprising a pixel portion, wherein the pixel portion includes a display element and a photoelectric conversion element, the method comprising:
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obtaining a first signal by the pixel portion; obtaining a second signal by the pixel portion; obtaining a third signal by the pixel portion; correcting the third signal using the first signal and the second signal; and displaying an image on the pixel portion wherein the first signal is almost the same as a signal obtained by reading a black calibration sheet, and the second signal is almost the same as a signal obtained by reading a white calibration sheet. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A driving method of a device comprising a pixel portion, wherein the pixel portion includes a display element and a photoelectric conversion element, the method comprising:
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obtaining a first signal by the pixel portion; obtaining a second signal by the pixel portion; obtaining a first image by the pixel portion; correcting the first image using the first signal and the second signal to form a second image; and displaying the second image on the pixel portion wherein the first signal is almost the same as a signal obtained by reading a black calibration sheet, and the second signal is almost the same as a signal obtained by reading a white calibration sheet. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A driving method of a device comprising a pixel, wherein the pixel includes a display element, a photoelectric conversion element and a transistor, and an n-channel terminal of the photoelectric conversion element is electrically connected to a gate of the transistor, the method comprising:
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obtaining a first potential of the n-channel terminal; obtaining a second potential of the n-channel terminal; obtaining a third potential of the n-channel terminal; correcting the third potential using the first potential and the second potential; and applying a fourth potential to the display element wherein the first potential is almost the same as a potential obtained by reading a black calibration sheet, and the second potential is almost the same as a potential obtained by reading a white calibration sheet. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification