METHOD OF CORRECTING NONUNIFORMITY OF PIXELS IN AN OLED
First Claim
Patent Images
1. A method of correcting for pixels in an organic EL display device needing correction, in a matrix, the method comprising:
- photographing an image of a display area with an imaging apparatus to specify an area in which display unevenness exists;
causing the organic EL elements of the display pixels in the specified area to emit light selectively to detect a drive current of the light emission;
calculating positions of pixels necessary needing correction and correction data based on the detected drive current; and
storing the obtained positions of the pixels needing correction and the correction data in a memory.
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Abstract
Nonuniformity in an organic EL display device is effectively detected. All display pixels of an organic EL panel are turned on and the display is photographed with a digital camera. A computer performs image processing of the photographed image to detect an area in which unevenness exists. Then, a V-I curve of each pixel in the area is measured to calculate necessary correction values. The calculated correction values are stored in a memory for use in correcting a signal input to the organic EL panel.
170 Citations
4 Claims
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1. A method of correcting for pixels in an organic EL display device needing correction, in a matrix, the method comprising:
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photographing an image of a display area with an imaging apparatus to specify an area in which display unevenness exists;
causing the organic EL elements of the display pixels in the specified area to emit light selectively to detect a drive current of the light emission;
calculating positions of pixels necessary needing correction and correction data based on the detected drive current; and
storing the obtained positions of the pixels needing correction and the correction data in a memory. - View Dependent Claims (2, 3, 4)
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Specification