Display device and driving method thereof
First Claim
1. A display device comprising:
- a display panel including a plurality of pixels arranged in a matrix of rows and columns, and switching elements each being connected to a corresponding one of the plurality of pixels;
a row driving circuit for selecting a row in the plurality of pixels by supplying a selection signal to the switching elements;
a column driving circuit for supplying a data signal to pixels connected to the switching elements selected with the selection signal; and
a black display signal generation circuit for generating a black display signal for causing the plurality of pixels to perform a black display, wherein the data signal and the black display signal are supplied to each of the plurality of pixels during a period corresponding to one vertical scanning period, the display device further comprising a black ratio control signal generation circuit for generating a black ratio control signal defining a ratio between a first period of retaining the data signal and a second period of retaining the black display signal.
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Accused Products
Abstract
The display device of the invention includes a display panel including a plurality of pixels arranged in a matrix of rows and columns, and switching elements each being connected to a corresponding one of the plurality of pixels; row driving circuits to for each selecting a row in the plurality of pixels by supplying a selection signal to the switching elements; column driving circuits for each supplying a data signal to pixels connected to the switching elements selected with the selection signal; and a black display signal generation circuit for generating a black display signal for causing the plurality of pixels to perform a black display. The data signal and the black display signal are supplied to each of the plurality of pixels during a period corresponding to one vertical scanning period. The display device further includes a black ratio control signal generation circuit for generating a black ratio control signal defining a ratio between a first period of retaining the data signal and a second period of retaining the black display signal.
28 Citations
21 Claims
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1. A display device comprising:
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a display panel including a plurality of pixels arranged in a matrix of rows and columns, and switching elements each being connected to a corresponding one of the plurality of pixels;
a row driving circuit for selecting a row in the plurality of pixels by supplying a selection signal to the switching elements;
a column driving circuit for supplying a data signal to pixels connected to the switching elements selected with the selection signal; and
a black display signal generation circuit for generating a black display signal for causing the plurality of pixels to perform a black display, wherein the data signal and the black display signal are supplied to each of the plurality of pixels during a period corresponding to one vertical scanning period, the display device further comprising a black ratio control signal generation circuit for generating a black ratio control signal defining a ratio between a first period of retaining the data signal and a second period of retaining the black display signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A driving method for a display device having a display panel including a plurality of pixels arranged in a matrix of rows and columns,
the method comprising the steps of, during a period corresponding to one vertical scanning period, supplying a data signal for each of the plurality of pixels and supplying a black display signal for each of the plurality of pixels, the method further comprising a step of determining a ratio between a first period of retaining the data signal in each of the plurality of pixels and a second period of retaining the black display signal in each of the plurality of pixels.
Specification