Display device
First Claim
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1. A display device comprising:
- a display panel;
a pixel on the display panel, the pixel comprising at least one light emitting element;
a timing controller configured to receive an image data signal of the pixel and to compensate for a gray value of the image data signal based on a number of light emitting elements of the pixel to generate a compensated image data signal;
a data driver configured to select a compensation data signal corresponding to the compensated image data signal from the timing controller and to apply the compensation data signal to the pixel; and
a look-up table in which the number of light emitting elements of the pixel is stored, the number of light emitting elements of the pixel being determined either via a photograph pixel or a current detected from the pixel,wherein the timing controller is configured to compare the number of light emitting elements of the pixel with a predetermined reference value, and to generate the compensated image data signal based on a comparison result.
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Abstract
A display device is capable of improving the image quality, the display device including: a display panel; a pixel on the display panel and including at least one light emitting element; a timing controller configured to receive an image data signal of the pixel and to compensate for a gray value of the image data signal based on the number of light emitting elements of the pixel to generate a compensated image data signal; and a data driver configured to select a compensation data signal corresponding to the compensated image data signal from the timing controller and to apply the compensation data signal to the pixel.
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Citations
17 Claims
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1. A display device comprising:
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a display panel; a pixel on the display panel, the pixel comprising at least one light emitting element; a timing controller configured to receive an image data signal of the pixel and to compensate for a gray value of the image data signal based on a number of light emitting elements of the pixel to generate a compensated image data signal; a data driver configured to select a compensation data signal corresponding to the compensated image data signal from the timing controller and to apply the compensation data signal to the pixel; and a look-up table in which the number of light emitting elements of the pixel is stored, the number of light emitting elements of the pixel being determined either via a photograph pixel or a current detected from the pixel, wherein the timing controller is configured to compare the number of light emitting elements of the pixel with a predetermined reference value, and to generate the compensated image data signal based on a comparison result. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A display device comprising:
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a display panel comprising a pixel connected to a first driving power line, a second driving power line, a data line, and a first compensation line; a driving circuit configured to generate a first compensation voltage based on a number of light emitting elements of the pixel, and to apply the first compensation voltage to the first compensation line; and a look-up table in which the number of light emitting elements of the pixel is stored, the number of light emitting elements of the pixel being determined either via a photograph of the pixel or a current detected from the pixel, wherein the pixel comprises; a driving switching element configured to receive a data signal from the data line; at least one light emitting element connected to the driving switching element; and a first compensation switching element comprising a gate electrode connected to the first compensation line, the first compensation switching element being connected between the first driving power line and the driving switching element, and wherein the driving circuit is configured to compare the number of light emitting elements of the pixel with a predetermined reference value, and to generate the first compensation voltage based on a comparison result. - View Dependent Claims (12, 13, 14, 15)
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16. A display device comprising:
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a display panel comprising a pixel connected to a first driving power line, a second driving power line, a data line, and a first compensation line; a driving circuit configured to generate a first compensation voltage based on a number of light emitting elements of the pixel, and to apply the first compensation voltage to the first compensation line; and a look-up table in which the number of light emitting elements of the pixel is stored, the number of light emitting elements of the pixel being determined either via a photograph of the pixel or a current detected from the pixel, wherein the pixel comprises; a driving switching element configured to receive a data signal from the data line; at least one light emitting element connected to the driving switching element; and a first compensation switching element comprising a gate electrode connected to the first compensation line, the first compensation switching element being connected between the light emitting element and the second driving power line, and wherein the driving circuit is configured to compare the number of light emitting elements of the pixel with a predetermined reference value, and to generate a compensated image data signal based on a comparison result. - View Dependent Claims (17)
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Specification