Display device and method for compensation of image data of the same
First Claim
1. A display device comprising:
- a display comprising a plurality of pixels; and
a controller configured to;
receive an external input image signal,adjust the external input image signal to compensate for brightness deviations of the pixels, andtransmit corresponding image data signals to the pixels,wherein the controller comprises;
a data input section configured to receive the external input image signal and transmit a test image data signal to the pixels, for sensing light emitted by the pixels, through a data driver at a predetermined interval,a luminance information extracting section configured to;
extract brightness information for the pixels after displaying a test image in accordance with the test image data signal, and
calculate first, second, and third parameters, using the brightness information, anda data compensating section configured to generate the image data signals by adjusting the external input image signal based on the first, second, and third parameters,wherein the first parameter corresponds to luminous efficiency of light emitting elements of the pixels,the second parameter corresponds to a threshold voltage deviation of driving transistors of the pixels, andthe third parameter corresponds to a change in brightness of the display, the change in brightness generated by a driving technique and an error in driving factors of the display, andwherein the luminance information extracting section comprises;
a first parameter extracting unit,a second parameter extracting unit, anda third parameter extracting unit, which are configured to select one of the pixels and calculate the first, second, and third parameters, respectively, based at least partially on the brightness information of the one of the pixels,wherein the second parameter extracting unit is configured to calculate the second parameter based on the brightness information of at least three of the pixels by using an equation,the third parameter extracting unit is configured to calculate the third parameter based on the second parameter, andthe first parameter extracting unit is configured to calculate the first parameter based on the second and third parameters, andwherein the equation is as below,
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Accused Products
Abstract
A display device includes: a display including a plurality of pixels; and a controller configured to: receive an external input image signal, adjust the external input image signal to compensate for brightness deviations of the pixels, and transmit corresponding image data signals to the pixels, wherein the controller includes: a data input section configured to receive the external input image signal and transmit a test image data signal to the pixels through a data driver, a luminance information extracting section configured to: extract brightness information for the pixels after displaying a test image in accordance with the test image data signal, and calculate first, second, and third parameters, using the brightness information, and a data compensating section configured to generate the image data signals by adjusting the external input image signal based on the first, second, and third parameters.
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Citations
10 Claims
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1. A display device comprising:
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a display comprising a plurality of pixels; and a controller configured to; receive an external input image signal, adjust the external input image signal to compensate for brightness deviations of the pixels, and transmit corresponding image data signals to the pixels, wherein the controller comprises; a data input section configured to receive the external input image signal and transmit a test image data signal to the pixels, for sensing light emitted by the pixels, through a data driver at a predetermined interval, a luminance information extracting section configured to;
extract brightness information for the pixels after displaying a test image in accordance with the test image data signal, and
calculate first, second, and third parameters, using the brightness information, anda data compensating section configured to generate the image data signals by adjusting the external input image signal based on the first, second, and third parameters, wherein the first parameter corresponds to luminous efficiency of light emitting elements of the pixels, the second parameter corresponds to a threshold voltage deviation of driving transistors of the pixels, and the third parameter corresponds to a change in brightness of the display, the change in brightness generated by a driving technique and an error in driving factors of the display, and wherein the luminance information extracting section comprises; a first parameter extracting unit, a second parameter extracting unit, and a third parameter extracting unit, which are configured to select one of the pixels and calculate the first, second, and third parameters, respectively, based at least partially on the brightness information of the one of the pixels, wherein the second parameter extracting unit is configured to calculate the second parameter based on the brightness information of at least three of the pixels by using an equation, the third parameter extracting unit is configured to calculate the third parameter based on the second parameter, and the first parameter extracting unit is configured to calculate the first parameter based on the second and third parameters, and wherein the equation is as below, - View Dependent Claims (2, 3, 4, 5)
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6. An image compensation method of a display device, the display device comprising:
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a display comprising a plurality of pixels; and a controller configured to receive an external input image signal, compensate for the external input image signal, and transmit corresponding image data signals to each of the pixels, the method comprising; transmitting a test image data signal to the pixels, for sensing light emitted by the pixels, through a data driver at a predetermined interval; displaying a test image using the pixels in response to the test image data signal; selecting a group of the pixels;
acquiring brightness information for the group of the pixels displaying the test image;calculating a first parameter, a second parameter, and a third parameter, using the brightness information; and generating the image data signals by adjusting the external input image signal based on the first, second, and third parameters, wherein the first parameter corresponds to luminous efficiency of light emitting elements of the pixels, the second parameter corresponds to a threshold voltage deviation of driving transistors of the pixels, and the third parameter corresponds to a change in brightness of the display, the change in brightness generated by a driving technique and an error in driving factors of the display, and wherein calculating the first, second, and third parameters comprises; calculating the second parameter based on the brightness information of at least three of the pixels by using an equation; calculating the third parameter based on the second parameter; and calculating the first parameter based on the second and third parameters, and wherein the equation is as below, - View Dependent Claims (7, 8, 9, 10)
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Specification