Liquid crystal display device, and method of driving the same
First Claim
1. A method of driving a liquid crystal display device comprising plural pixels, a driving circuit for supplying picture signals to the pixels, and a liquid crystal whose transmittivity is changed dependently on the voltage of the picture signals supplied to the pixels, the method comprising the steps of:
- dividing one frame into plural subframes;
changing respective voltages of picture signals supplied in plural subframe periods so as to enlarge a voltage difference between a first picture signal supplied to the pixels in at least one subframe period and a second picture signal supplied to the pixels in the other one subframe period adjacent to the one subframe period on the basis of time; and
displaying one frame by displaying the plural subframes successively on the basis of time.
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Accused Products
Abstract
Provided is a liquid crystal display device making it possible to display highly minute images wherein flickers and afterimages are reduced, and a method of driving the same.
Respective picture signals supplied in subframe periods are changed to enlarge the following: a voltage difference between the gradation voltage of a picture signal D1a supplied in the first subframe period (1st Tsf) and the gradation voltage of a picture signal D1b supplied in the second subframe period (2nd Tsf). Such voltages are continuously supplied to pixels.
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Citations
18 Claims
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1. A method of driving a liquid crystal display device comprising plural pixels, a driving circuit for supplying picture signals to the pixels, and a liquid crystal whose transmittivity is changed dependently on the voltage of the picture signals supplied to the pixels, the method comprising the steps of:
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dividing one frame into plural subframes;
changing respective voltages of picture signals supplied in plural subframe periods so as to enlarge a voltage difference between a first picture signal supplied to the pixels in at least one subframe period and a second picture signal supplied to the pixels in the other one subframe period adjacent to the one subframe period on the basis of time; and
displaying one frame by displaying the plural subframes successively on the basis of time. - View Dependent Claims (4, 5, 6, 7, 8, 9)
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2. A method of driving a liquid crystal display device comprising plural pixels, a driving circuit for supplying picture signals to the pixels, and a liquid crystal whose transmittivity is changed dependently on the voltage of the picture signals supplied to the pixels, the method comprising the steps of:
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dividing one frame into two subframes;
changing respective voltages of picture signals supplied in two subframe periods so as to enlarge a voltage difference between a picture signal supplied to the pixels in one subframe period and a picture signal supplied to the pixels in the other subframe period; and
displaying one frame by displaying the two subframes successively on the basis of time.
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3. A method of driving a liquid crystal display device comprising the steps of:
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dividing one frame into plural subframes;
changing respective voltages of picture signals supplied in plural subframe periods so as to enlarge a voltage difference between a first picture signal supplied to the pixels in a first subframe period and a second picture signal supplied to the pixels in a second subframe period adjacent to the first adjacent period on the basis of time; and
displaying one frame by displaying the first and second subframes successively on the basis of time.
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10. A liquid crystal display device comprising:
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plural pixels;
a driving circuit for supplying picture signals to the pixels;
a liquid crystal whose transmittivity is changed dependently on the voltage of the picture signals supplied to the pixels;
means for dividing one frame to plural subframes, and dividing picture signals supplied in each of frame periods to picture signals supplied in plural subframe periods;
means for changing respective voltages of picture signals supplied in plural subframe periods so as to enlarge a voltage difference between a first picture signal supplied to the pixels in one subframe period and a second picture signal supplied to the pixels in the other one subframe period adjacent to the one subframe period on the basis of time; and
means for display one frame by displaying the subframes successively on the basis of time. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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11. A liquid crystal display device comprising:
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plural pixels;
a driving circuit for supplying picture signals to the pixels;
a liquid crystal whose transmittivity is changed dependently on the voltage of the picture signals supplied to the pixels;
means for dividing one frame into two subframes;
means for dividing picture signals supplied in each of frame periods to picture signals supplied in two subframe periods;
means for changing respective voltages of picture signals supplied in two subframe periods so as to enlarge a voltage difference between a picture signal supplied to the pixels in one subframe period and a picture signal supplied to the pixels in the other one the subframe period; and
means for displaying one frame by displaying the two subframes successively on the basis of time.
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12. A liquid crystal display device comprising:
means for dividing one frame into two subframes;
means for dividing picture signals supplied in each of frame periods to picture signals supplied in two subframe periods;
means for changing respective voltages of picture signals supplied in two subframe periods so as to enlarge a voltage difference between a first picture signal supplied to the pixels in a first subframe period and a second picture signal supplied to the pixels in a second subframe period; and
means for displaying one frame by displaying the first and second subframes successively on the basis of time.
Specification