摘要:
Method and apparatus for reducing driver energy consumption of drivers of a display device each supplied by an input codeword as e.g. for data drivers of a plasma display panel supplied by sequences of subfield data bits in form of a codeword comprising a predetermined number of bits are recommended, wherein the apparatus comprises a driver transition energy limitation circuit for toggling bits of the input codeword applied to the driver transition energy limitation circuit and providing a codeword reducing the driver energy consumption. A toggle map, which is generated from a combination of a transition map determining a bit in the input codeword if toggled reduces energy consumption and a flag map determining a number of least significant bits exceeding a cell energy limit value, is applied to an input codeword for the driver to toggle bits of said input codeword for reducing driver energy consumption without a perceivable image quality degradation. Method and apparatus are advantageously applicable for driver overheat protection and eco mode to reduce driver energy consumption without a perceivable image quality degradation.
摘要:
The EMI spectrum of a display device is to comply with respective norms. Therefore, the clock for loading data into data drivers of a display panel is designed to be variable. Consequently, the electromagnetic radiation produced by the loading clock is broadened thereby reducing the peak amplitude. Thus, the limitations of radiation norms can be complied with.
摘要:
A method for determining a consolidated output value of a target pixel is proposed. Said target pixel has a colour, is comprised in an imaging device, provides a raw output value and is surrounded in the imaging device, at least partly, by neighbouring pixels which have said colour and provide further raw output values. Said method comprises using the raw output value and the further raw output values for determining a filtered defectiveness value, using the further raw output values for determining a threshold value, using the further raw output values for determining an alternative output value, using the filtered defectiveness value and the threshold value for determining a first weight for weighting the raw output value and for determining a second weight for weighting the alternative output value and determining the output value as weighted sum of the raw output value and the alternative output value.
摘要:
CMOS image sensors are usually suffering from fixed pattern noise and random defect pixels. A processing device (15) for correcting of at least one defect pixel value of an image sensor unit is proposed, the image sensor unit comprising at least a first and a second pixel array (1,2,3), wherein the image sensor unit is embodied to project the same image onto each pixel array (1,2,3), the processing device (15) comprising at least a first and a second input channel (11,12,13) for receiving pixel values of the first and the second pixel array, respectively, wherein the processing device (15) is operable to exchange the defect pixel value by a corrected pixel value, wherein the corrected pixel value is estimated by evaluating the values of neighbouring pixels of the defect pixel of the same pixel array, wherein the corrected pixel value is estimated by evaluating values of a corresponding pixel and its neighbouring pixels of the second pixel array at the same location as the defect pixel of the first pixel array in respect to the projected image.
摘要:
The EMI spectrum of a display device is to comply with respective norms. Therefore, the clock for loading data into data drivers of a display panel is designed to be variable. Consequently, the electromagnetic radiation produced by the loading clock is broadened thereby reducing the peak amplitude. Thus, the limitations of radiation norms can be complied with.