Method for driving display device
First Claim
Patent Images
1. A multi-mode display device including a display comprising an array of pixels, comprising:
- means for driving the display in a first display mode that provides high image quality; and
means for driving the display in a second display mode that provides reduced power consumption and lower screen resolution, wherein the means for driving the display in the second display mode comprises;
means for dividing the array of pixels into groups of pixels;
means for receiving image data for one of the pixel groups;
means for calculating a representative value of the image data; and
means for driving the one group of pixels to display the representative value of the image data.
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Abstract
A method is provided for reducing power consumption in a digital display including an array of pixels. The method includes reducing a switching frequency for driving the array of pixels and dividing the array of pixels into groups of a predefined size. A representative value of the input data for the group of pixels may be obtained using a weighting function and the group of pixels are driven to display the representative value.
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Citations
16 Claims
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1. A multi-mode display device including a display comprising an array of pixels, comprising:
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means for driving the display in a first display mode that provides high image quality; and means for driving the display in a second display mode that provides reduced power consumption and lower screen resolution, wherein the means for driving the display in the second display mode comprises; means for dividing the array of pixels into groups of pixels; means for receiving image data for one of the pixel groups; means for calculating a representative value of the image data; and means for driving the one group of pixels to display the representative value of the image data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A multi-mode display device, comprising:
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a display including a pixel display area; a controller configured to drive the display in accordance with first and second display modes, the first display mode providing high image quality and the second display mode providing reduced power consumption at lower image quality; a memory containing image data, and wherein the controller operating in the second display mode is configured to; receive image data for one group of pixels from the memory; calculate a representative value of the image data; and driving the one group of pixels to display the representative value of the image data. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification