Abstract: A vehicle seat assembly, suitable for vehicles such as locomotives and the like, includes a main cushion body and a lifting cushion. The main cushion body has a sliding cushion connected to a vehicle body with a sliding structure. The lifting cushion is connected to the vehicle body with a linkage mechanism. The lifting cushion is moved into a carriage when the sliding cushion is in a first position, and when the sliding cushion slides laterally into a second position to form a space portion, the lifting cushion can be lifted from the carriage and moved into the space portion and then positioned, or can be lowered into the carriage again, so that the sliding cushion can be moved back to the first position, thereby allowing the user to adjust seat cushion length according to their needs.

Abstract: A method of motion adaptive spatial smoothing includes determining a difference of a block duty of a selected block of a current frame and a block duty of the selected block of a previous frame, generating an original smoothing matrix for the selected block, generating a motion adaptive matrix according to the original smoothing matrix and a difference of the block duty of the selected block of the current frame and the block duty of the selected block of the previous frame, updating a block duty for each block with a corresponding motion adaptive matrix to generate an updated frame, and performing spatial smoothing for the updated frame.

Abstract: A luminance control circuit and a luminance control method are provided. The luminance control circuit includes a first converter, average pixel level (APL) calculator, a luminance adjusting circuit and a second converter. The first converter converts a gray level result of an image data into at least one luminance. The APL calculator generates an APL value according to the at least one luminance. The luminance adjusting circuit generates at least one adjusting value according to the APL value and adjust the at least one luminance to be at least one adjusted luminance using the least one adjusting value. The second converter converts the at least one adjusted luminance into an adjusted gray level result of the image data. The adjusted gray level result is negative correlated with the APL value.

Abstract: The disclosure provides a compensating circuit for overdriving a data signal of display device. The compensating circuit includes a memory circuit, an offsetting circuit and an overdriving value generator. The memory circuit stores a first offset gray value of a first frame period. The offsetting circuit receives the first offset gray value, a duty value of an emission driving signal and a current gray value of the data signal. The offsetting circuit generates a second offset gray value of a second frame period according to the duty value, the current gray value and the first offset gray value, and stores the second offset gray value into the memory circuit. The overdriving value generator generates an overdriving value for overdriving the data signal to generate a compensated data signal according to the second offset gray value and the current gray value.

Abstract: A timing controller for controlling a plurality of driving circuits of a light-emitting diode (LED) display device is provided. The timing controller comprises: a voltage level conversion circuit and a setting circuit. The voltage level conversion circuit is configured to determine a plurality of voltage level settings with respect to a plurality of image regions of an input image. The setting circuit is configured to respectively set the plurality of driving circuits of the LED display device according to the plurality of voltage level settings, wherein the third circuitry is configured to set each of the plurality of driving circuits to utilize a drive voltage at a specific level that is indicated by a corresponding one of the voltage level settings, to respectively drive LED units of the LED display device.

Abstract: A timing controller for controlling a plurality of driving circuits of a light-emitting diode (LED) display device is provided. The timing controller comprises: a voltage level conversion circuit and a setting circuit. The voltage level conversion circuit is configured to determine a plurality of voltage level settings with respect to a plurality of image regions of an input image. The setting circuit is configured to respectively set the plurality of driving circuits of the LED display device according to the plurality of voltage level settings, wherein the third circuitry is configured to set each of the plurality of driving circuits to utilize a drive voltage at a specific level that is indicated by a corresponding one of the voltage level settings, to respectively drive LED units of the LED display device.

Abstract: A digital low color shift (DLCS) edge smoothing method, for a display panel having a plurality of pixels, includes determining an edge gain of a first pixel of the plurality of pixels of the display panel; and smoothing the edge of the first pixel and the other neighbor pixels of the plurality of pixels of the display panel according to a spatial filter.

Abstract: A digital low color shift (DLCS) edge smoothing method, for a display panel having a plurality of pixels, includes determining an edge gain of a first pixel of the plurality of pixels of the display panel; and smoothing the edge of the first pixel and the other neighbor pixels of the plurality of pixels of the display panel according to a spatial filter.

Abstract: An optical distortion correction system includes a correction device that generates correction values according to data from a lens; a weighting device that generates weights for corresponding data according to the correction values; a jag detector that detects a jag in an outline according to the data; a filter that provides a spatial filter when a jag is detected; and a smoothing device that smooths the data by the weights and the spatial filter, thereby resulting in smoothed data.

Abstract: An apparatus for performing subpixel rendering of an RGBW display panel is provided. The apparatus receives an input gray level data to acquire a luminance value of each subpixel of a RGB pixel set including two RGB pixels adjacent to each other. The apparatus calculates a rendered luminance value of each subpixel of a display pixel set including two display pixels adjacent to each other according to the luminance values. The display pixel set of the RGBW display panel includes red, green, blue, and white subpixels. The rendered luminance value of the white subpixel of one of the display pixels is determined according to the saturation value of the corresponding RGB pixel and the luminance value of each subpixel of the corresponding RGB pixel. The apparatus acquires a gray level value of each white subpixel of the display pixel set according to the rendered luminance values.

Abstract: An apparatus for performing subpixel rendering of an RGBW display panel is provided. The apparatus receives an input gray level data to acquire a luminance value of each subpixel of a RGB pixel set including two RGB pixels adjacent to each other. The apparatus calculates a rendered luminance value of each subpixel of a display pixel set including two display pixels adjacent to each other according to the luminance values. The display pixel set of the RGBW display panel includes red, green, blue, and white subpixels. The rendered luminance value of the white subpixel of one of the display pixels is determined according to the saturation value of the corresponding RGB pixel and the luminance value of each subpixel of the corresponding RGB pixel. The apparatus acquires a gray level value of each white subpixel of the display pixel set according to the rendered luminance values.

Abstract: The display device that includes a backlight module and a control circuit is introduced. The control circuit divides an input image to a plurality of blocks, calculates a backlight parameter of each of the blocks, calculates a first duty cycle shift and a second duty cycle shift according to a plurality of duty cycles in the backlight parameter, calculates a first weight value and a second weight value according to a maximum duty cycle, a minimum duty cycle, and a duty cycle mean, and calculates a peaking duty cycle the first duty cycle shift, the second duty cycle shift, the first weight value and the second weight value. The control circuit is further configured to generate an output backlight parameter according to the peaking duty cycle, wherein the corresponding lighting unit of the backlight module is driven according to the output backlight parameter.

Abstract: An overdrive system includes a compressor that compresses an input signal to result in a compressed signal; a weighting device that generates a weighted sum of a current compressed signal and a current input signal, thereby resulting in a weighted current signal; and an overdriver that performs an overdrive operation according to a previous compressed signal and the weighted current signal.

Abstract: A device for driving a backlight assembly of a display device includes: a block division unit for dividing the input image into plural blocks and a duty cycle determination unit. The duty cycle determination unit is used for: generating a histogram of gray levels of pixels of each block; obtaining a high gray level and a median gray level of each block according to the histogram; obtaining a high gray quantity based on the high gray level and a median gray quantity of the median gray level of each block according to the histogram; obtaining a weight value of each block according to the high gray level, the high gray quantity, the median gray quantity, and a lookup table; and calculating a duty cycle of a driving signal of each block according to the weight value, the high gray level, and the median gray level.

Abstract: The invention provides a driving circuit of a display panel and an operation method thereof. The driving circuit includes a calculation circuit and an edge processing circuit. The calculation circuit converts original image frame data into first image frame data for driving a first pixel array layer and second image frame data for driving a second pixel array layer. The edge processing circuit converts the second image frame data into third image frame data. The edge processing circuit performs an edge detection on a current pixel in the second image frame data to determine whether the current pixel belongs to an image edge. The edge processing circuit determines whether to adjust a gray level of an adjacent pixel in the second image frame data as the gray level of the adjacent pixel in the third image frame data according to a result of the edge detection.

Abstract: A polarity compensation device and a polarity compensation method are provided. The polarity compensation device includes a variance calculation circuit and a compensation calculation circuit. The variance calculation circuit calculates a difference value between current sub-pixel data and previous sub-pixel data in the same frame period, wherein the current sub-pixel data and the previous sub-pixel data belong to the same data line of a display panel. The compensation calculation circuit converts the difference value into a function value. The compensation calculation circuit decides to increase or decrease the current sub-pixel data by the function value according to a polarity corresponding to the same frame period, so as to generate compensated sub-pixel data.

Abstract: The invention provides a driving circuit of a display panel and an operation method thereof. The driving circuit includes a calculation circuit and an edge processing circuit. The calculation circuit converts original image frame data into first image frame data for driving a first pixel array layer and second image frame data for driving a second pixel array layer. The edge processing circuit converts the second image frame data into third image frame data. The edge processing circuit performs an edge detection on a current pixel in the second image frame data to determine whether the current pixel belongs to an image edge. The edge processing circuit determines whether to adjust a gray level of an adjacent pixel in the second image frame data as the gray level of the adjacent pixel in the third image frame data according to a result of the edge detection.

Abstract: A device for driving a backlight assembly of a display device includes: a block division unit for dividing the input image into plural blocks and a duty cycle determination unit. The duty cycle determination unit is used for: generating a histogram of gray levels of pixels of each block; obtaining a high gray level and a median gray level of each block according to the histogram; obtaining a high gray quantity based on the high gray level and a median gray quantity of the median gray level of each block according to the histogram; obtaining a weight value of each block according to the high gray level, the high gray quantity, the median gray quantity, and a lookup table; and calculating a duty cycle of a driving signal of each block according to the weight value, the high gray level, and the median gray level.

Abstract: A polarity compensation device and a polarity compensation method are provided. The polarity compensation device includes a variance calculation circuit and a compensation calculation circuit. The variance calculation circuit calculates a difference value between current sub-pixel data and previous sub-pixel data in the same frame period, wherein the current sub-pixel data and the previous sub-pixel data belong to the same data line of a display panel. The compensation calculation circuit converts the difference value into a function value. The compensation calculation circuit decides to increase or decrease the current sub-pixel data by the function value according to a polarity corresponding to the same frame period, so as to generate compensated sub-pixel data.