DISPLAY DEVICE AND METHOD OF DRIVING THE SAME
First Claim
1. A display device, comprising:
- an image signal processor to correct an original image signal whose frame frequency is a first frequency or a second frequency different from the first frequency and to output a corrected image signal;
a first lookup table to store image correction data corresponding to an (n−
1)-th frame and an n-th frame that correspond to the original image signal having the first frequency; and
a display panel to display an image corresponding to the corrected image signal,wherein a second lookup table, which corresponds to the original image signal having the second frequency, is generated from the first lookup table, and the first lookup table or the second lookup table is selected based on the frame frequency of the original image signal to output the corrected image signal.
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Accused Products
Abstract
Provided are a display device, which can improve display quality by correcting an original image signal whose frame frequency is a first frequency or a second frequency different from the first frequency, and a method3 of driving the display device. The display device includes an image signal processor which corrects an original image signal whose frame frequency is a first frequency or a second frequency different from the first frequency and outputs a corrected image signal, a first lookup table which stores image correction data corresponding to an (n−1)-th frame and an n-th frame that corresponds to the original image signal having the first frequency, and a display panel which displays an image corresponding to the corrected image signal. A second lookup table, which corresponds to the original image signal having the second frequency, is generated from the first lookup table, and the first or second lookup table is selected based on the frame frequency of the original image signal to output the corrected image signal.
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Citations
20 Claims
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1. A display device, comprising:
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an image signal processor to correct an original image signal whose frame frequency is a first frequency or a second frequency different from the first frequency and to output a corrected image signal; a first lookup table to store image correction data corresponding to an (n−
1)-th frame and an n-th frame that correspond to the original image signal having the first frequency; anda display panel to display an image corresponding to the corrected image signal, wherein a second lookup table, which corresponds to the original image signal having the second frequency, is generated from the first lookup table, and the first lookup table or the second lookup table is selected based on the frame frequency of the original image signal to output the corrected image signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A display device comprising:
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an image signal processor to convert an original image signal, whose frame frequency is a first frequency or a second frequency different from the first frequency, into a transient image signal having a third frequency that is higher than the first frequency and the second frequency, to correct the transient image signal, and to output a corrected image signal; a first lookup table to store image correction data corresponding to an (n−
1)-th frame and an n-th frame of the original image signal having the first frequency; anda display panel to display an image corresponding to the corrected image signal, wherein a second lookup table, which corresponds to the original image signal having the second frequency, is generated from the first lookup table, and the first lookup table or the second lookup table is selected based on the frame frequency of the original image signal to output the corrected image signal. - View Dependent Claims (11, 12, 13, 14)
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15. A method of driving a display device comprising an image signal processor, the method comprising:
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receiving an original image signal whose frame frequency is a first frequency or a second frequency different from the first frequency; loading a first lookup table when the display device is powered on, the first lookup table storing image correction data corresponding to an (n−
1)-th frame and an n-th frame of the original image signal having the first frequency;generating a second lookup table, which corresponds to the original image signal having the second frequency, from the first lookup table; storing the second lookup table in an internal memory of the image signal processor; selecting the first lookup table or the second lookup table based on the frame frequency of the original image signal and generating a corrected image signal by using the selected lookup table; and displaying an image that corresponds to the corrected image signal. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification