Method for controlling display device, control apparatus for display device and display device
First Claim
1. A method for controlling a display device, comprising:
- determining whether or not to perform peak driving for respective backlight sub-regions of the display device, the backlight sub-regions corresponding to sub-display areas of the display device; and
performing, in response to a result of the above determining, data signal compensation at least for sub-display areas whose average luminance values are lower than a first luminance threshold among the sub-display areas to which the backlight sub-regions that are determined to be subjected to peak driving correspond,wherein determining whether or not to perform peak driving for respective backlight sub-regions of the display device comprises;
counting the number of pixels included in each sub-display area whose luminance exceed the second luminance threshold,calculating an average luminance value of each sub-display area,determining backlight sub-regions to be subjected to peak driving based on a result of the above counting step or calculating step,wherein the method further comprises;
determining that peak driving is performed for backlight sub-regions to which a first sub-display area, a second sub-display area and a third sub-display area of the display device correspond, wherein the first sub-display area has an average luminance value greater than the first luminance threshold and includes N1 pixels whose luminance exceed the second luminance threshold, N1 being greater than a preset number threshold N0, the second sub-display area has an average luminance value greater than the first luminance threshold and includes N2 pixels whose luminance exceed the second luminance threshold, N2 being smaller than the preset number threshold N0, the third sub-display area has an average luminance value smaller than the first luminance threshold and includes N3 pixels whose luminance exceed the second luminance threshold, N3 being greater than the preset number threshold N0.
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Abstract
The present disclosure provides a method for controlling a display device, a control apparatus for a display device, and a display device comprising the control apparatus. The method for controlling a display device may comprise the steps of: determining whether or not to perform peak driving for respective backlight sub-regions of the display device, the backlight sub-regions corresponding to sub-display areas of the display device; and performing, in response to a result of the above determining step, data signal compensation at least for sub-display areas whose average luminance values are lower than a preset first luminance threshold among the sub-display areas to which the backlight sub-regions that are determined to be subjected to peak driving correspond.
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Citations
14 Claims
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1. A method for controlling a display device, comprising:
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determining whether or not to perform peak driving for respective backlight sub-regions of the display device, the backlight sub-regions corresponding to sub-display areas of the display device; and performing, in response to a result of the above determining, data signal compensation at least for sub-display areas whose average luminance values are lower than a first luminance threshold among the sub-display areas to which the backlight sub-regions that are determined to be subjected to peak driving correspond, wherein determining whether or not to perform peak driving for respective backlight sub-regions of the display device comprises; counting the number of pixels included in each sub-display area whose luminance exceed the second luminance threshold, calculating an average luminance value of each sub-display area, determining backlight sub-regions to be subjected to peak driving based on a result of the above counting step or calculating step, wherein the method further comprises; determining that peak driving is performed for backlight sub-regions to which a first sub-display area, a second sub-display area and a third sub-display area of the display device correspond, wherein the first sub-display area has an average luminance value greater than the first luminance threshold and includes N1 pixels whose luminance exceed the second luminance threshold, N1 being greater than a preset number threshold N0, the second sub-display area has an average luminance value greater than the first luminance threshold and includes N2 pixels whose luminance exceed the second luminance threshold, N2 being smaller than the preset number threshold N0, the third sub-display area has an average luminance value smaller than the first luminance threshold and includes N3 pixels whose luminance exceed the second luminance threshold, N3 being greater than the preset number threshold N0. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A control apparatus for a display device, comprising:
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a peak driving circuit in a backlight module for determining whether or not to perform peak driving for respective backlight sub-regions and performing peak driving for a backlight sub-region that is determined to be subjected to peak driving, the backlight sub-regions corresponding to sub-display areas of the display device; and a data signal compensation circuit in a display panel for performing, based on a determination result from the peak driving circuit, data signal compensation at least for sub-display areas whose average luminance values are lower than a first luminance threshold among the sub-display areas to which the backlight sub-regions that are determined to be subjected to peak driving correspond, wherein the peak driving circuit comprises; a statistics module for counting the number of pixels included in each sub-display area whose luminance exceed the second luminance threshold; an average luminance value calculation module for calculating an average luminance value of each sub-display area; a determination module for determining backlight sub-regions to be subjected to peak driving based on a result from the statistics module or the average luminance value calculation module, wherein the determination module determines that peak driving is performed for backlight sub-regions to which a first sub-display area, a second sub-display area and a third sub-display area of the display device correspond, wherein the first sub-display area has an average luminance value greater than the first luminance threshold and includes N1 pixels whose luminance exceed the second luminance threshold, N1 being greater than a preset number threshold N0, the second sub-display area has an average luminance value greater than the first luminance threshold and includes N2 pixels whose luminance exceed the second luminance threshold, N2 being smaller than the preset number threshold N0, the third sub-display area has an average luminance value smaller than the first luminance threshold and includes N3 pixels whose luminance exceed the second luminance threshold, N3 being greater than the preset number threshold N0. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification