DISPLAY DEVICE AND DRIVING METHOD THEREOF
First Claim
1. A display device, comprising:
- a plurality of pixels;
a data driver configured to apply a first data voltage to a first data line of a plurality of data lines, wherein the first data line is connected to a first pixel of the plurality of pixels;
a signal controller configured to transfer an image data signal and a data control signal for controlling an operation of the data driver, wherein the image data signal includes a first image signal and a second image signal; and
a data processor configured to detect a first region including a moving pattern in the first image signal, to apply a first dynamic capacitance control (DCC) to the first region, to apply a second DCC to a second region other than the moving pattern region, to generate the second image signal by combining the first region to which the first DCC is applied and the second region to which the second DCC is applied, and to transfer the second image signal to the signal controller,wherein during a first time period, the first data voltage is higher than a reference data voltage corresponding to a first luminance to be displayed by a first predetermined level, or during a second time period, the first data voltage is lower than the reference data voltage by a second predetermined level, andwherein a rising time and a falling time of luminance of the first pixel are the same as each other when the first DCC is applied, and the rising time and the falling time of the luminance of the first pixel are not controlled when the second DCC is applied.
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Abstract
A display device is provided. The display device includes pixels, a data driver, a signal controller, a data processor. The data driver is configured to apply a first data voltage to a first pixel. The signal controller is configured to transfer an image data signal and a data control signal for controlling an operation of the data driver. The data processor is configured to detect a first region including a moving in a first image signal, to apply a first dynamic capacitance control (DCC) to the first region, to apply a second DCC to a second region other than the moving pattern region, to generate the second image signal by combining the first region to which the first DCC is applied and the second region to which the second DCC is applied, and to transfer the second image signal to the signal controller.
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Citations
21 Claims
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1. A display device, comprising:
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a plurality of pixels; a data driver configured to apply a first data voltage to a first data line of a plurality of data lines, wherein the first data line is connected to a first pixel of the plurality of pixels; a signal controller configured to transfer an image data signal and a data control signal for controlling an operation of the data driver, wherein the image data signal includes a first image signal and a second image signal; and a data processor configured to detect a first region including a moving pattern in the first image signal, to apply a first dynamic capacitance control (DCC) to the first region, to apply a second DCC to a second region other than the moving pattern region, to generate the second image signal by combining the first region to which the first DCC is applied and the second region to which the second DCC is applied, and to transfer the second image signal to the signal controller, wherein during a first time period, the first data voltage is higher than a reference data voltage corresponding to a first luminance to be displayed by a first predetermined level, or during a second time period, the first data voltage is lower than the reference data voltage by a second predetermined level, and wherein a rising time and a falling time of luminance of the first pixel are the same as each other when the first DCC is applied, and the rising time and the falling time of the luminance of the first pixel are not controlled when the second DCC is applied. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for driving a display device, comprising:
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receiving first frame data; receiving second frame data after the first frame has been received data; dividing the received first frame data into a plurality of first detection blocks; dividing the received second frame data into a plurality of second detection blocks; detecting a detection block including a moving pattern among the plurality of second detection blocks; applying a first dynamic capacitance control (DCC) to the detection block including the moving pattern; and applying a second DCC to a detection block from among the plurality of second detection blocks in which the moving pattern is not included, wherein a first data voltage applied to a first pixel in the display device is higher than a reference voltage corresponding to a first luminance to be displayed by a first predetermined level, or lower than the reference voltage by a second predetermined level, and wherein a rising time and a falling time of luminance of the first pixel are the same as each other when the first DCC is applied, and the rising time and the falling time of the luminance of the first pixel are not controlled when the second DCC is applied. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. A data processor in a display device, comprising:
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a frame memory configured to store a first image signal in a frame unit; a moving pattern detector configured to divide an image signal of a current frame into a plurality of current detection blocks, to divide an image signal of a previous frame stored in the frame memory into a plurality of previous detection blocks, to detect a detection block including a moving pattern among the plurality of current detection blocks, and to transfer the plurality of current detection blocks to a first dynamic capacitance control (DCC) unit or a second DCC unit depending on whether the plurality of current detection blocks includes the moving pattern; the first dynamic capacitance control (DCC) unit configured to perform a first DCC on the plurality of current detection blocks transferred from the moving pattern detector; the second DCC unit configured to apply a second DCC on the plurality of current detection blocks transferred from the moving pattern detector; and a data output section configured to generate a second image signal by combining the output image signals from the first DCC unit and the second DCC unit.
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Specification