Abstract: A display apparatus includes a multiplexer circuit, a driving unit, a first control line and a second control line. The multiplexer circuit includes a plurality of switch units. The first control line is electrically connected with the switch units and the driving unit. The second control line is electrically connected with the switch units and the driving unit. A maximum time constant from the driving unit to the switch units is less than R*C/4, wherein R represents the equivalent resistance of the portion of the first control line between the two switch units which are the farthest from each other, and C represents the equivalent capacitance of the portion of the first control line between the two switch units which are the farthest from each other.

Abstract: A display apparatus includes a multiplexer circuit, a driving unit, a first control line and a second control line. The multiplexer circuit includes a plurality of switch units. The first control line is electrically connected with the switch units and the driving unit. The second control line is electrically connected with the switch units and the driving unit. A maximum time constant from the driving unit to the switch units is less than R*C/4, wherein R represents the equivalent resistance of the portion of the first control line between the two switch units which are the farthest from each other, and C represents the equivalent capacitance of the portion of the first control line between the two switch units which are the farthest from each other.

Abstract: The present disclosure provides a gamut mapping method. In the gamut mapping method, a plurality of first color points of a first gamut of an image signal is mapped into a plurality of second color points of a second gamut. Each of the plurality of second color points is generated by multiplying each component value of the plurality of primary colors by a corresponding scaling factor. If at least one component value of the plurality of primary colors is zero, the larger a maximum component value of the plurality of primary colors is, the smaller the corresponding scaling factor is.

Abstract: The disclosure provides a method (70, 80) for determining a corrected touch location ([u, v]cor) on a touch panel (1) comprising a plurality of sensors (10), the method comprising obtaining (71, 81) a first estimate ([u, v]est, 20) for a touch location, a touch location being defined as a location on said touch panel sensing a touch of an object like a finger or a stylus; determining (74, 84a, 84b) a correction vector ([ucor, vcor]) by applying at least one predetermined mapping (Ecor), using the first estimate ([u, v]est) as input for said mapping; combining (75, 85) the first estimate ([u, v]est) and the correction vector ([ucor, vcor]) to obtain the corrected touch location ([u, v]cor).

Abstract: A power control method, a power control apparatus, and an OLED display are provided. The method includes the steps of: estimating a voltage value according to image content of an image, the voltage value indicative of a minimal required voltage allowing the OLED panel to display the image; and controlling a voltage generator to adjust a booster voltage provided to the OLED panel according to the estimated voltage value.

Abstract: A power control method, a power control apparatus, and an OLED display are provided. The method includes the steps of: estimating a voltage value according to image content of an image, the voltage value indicative of a minimal required voltage allowing the OLED panel to display the image; and controlling a voltage generator to adjust a booster voltage provided to the OLED panel according to the estimated voltage value.

Abstract: A driver (DD, SD, PD1, PD2) drives a display panel which comprises a first set of light emitting elements (PL1) and a second set of light emitting elements (PL2). The driver (DD, SD, PD1, PD2) comprises a data driver (DD) which receives a first set of input image signals (R) representing a first color to supply a first set of data signals (RD 1) to the first set of light emitting elements (PL1), respectively. The data driver (DD) further receives a second set of input image signals (B) representing a second color to supply a second set of data signals (BD1) to the second set of light emitting elements (PL2), respectively. A lowpass filter (LPF) is provided to obtain the second set of data signals (BD1) having a bandwidth being smaller than a bandwidth of the first set of data signals (RD1).

Abstract: A driver (D) for a matrix display panel (1) with a pixel (Pk) comprising a first and a second sub-pixel (SP11, 12) both having an inertia, receives a first and second input signal (R, G) indicating a first and a second desired brightness transition (BT1, BT2) of the first and second sub-pixel (SP11, 12), respectively. The driver (D) supplies a first and a second drive signal (Ra, Ga) to the first and the second sub-pixel (SP11, 12), respectively. The first and a second drive signal (Ra, Ga) are supplied at a predetermined repetition rate, and levels of the first and the second drive signal (Ra, Ga) are limited between a minimum level (MI) and a maximum level (MA). The predetermined repetition rate may be the frame or line rate. The predetermined period is the reciprocal of the predetermined repetition rate.

Abstract: The invention relates to a signal processing system comprising first electronic means for storing an input signal, second means for a real-time processing of the input signal thus stored, and third electronic means for storing the signal thus processed. This system is according to the invention, characterized in that said second processing means themselves comprise off-line signal enhancement means applied to said input signal and using available processing resources, not still used for real-time or on-line processing, for delivering an enhanced signal and storing it in said third means for storing the signal processed by the second processing means.

Abstract: The invention relates to a color display device for display a color image and a method of operating such display. The color display device is provided with a plurality of picture elements, two selectable light sources having different predetermined radiance spectra, color selection means which in combination with the selectable light sources is able to produce respective first and second primary colors on the display panel and control means arranged to select alternately one of the selectable light sources and to provide a portion of the picture elements with image information corresponding to the respective primary colors obtainable with the selected light source. The primary colors of the display device can be selected in a time sequential and space sequential way which enable a reduction of a color break-up.

Abstract: An active matrix display panel comprises a substrate, array of pixel circuits being arranged in a matrix of at least one column and a plurality of rows on the substrate, each pixel circuit comprising a light-emitting element, capable of emitting light of an intensity determined by the value of a current passed through it, and at least one column line, each column line arranged to conduct a reference current, provided by a current driving circuit, when connected to the panel. The pixel circuits in a column are divided into a plurality of groups of at least one pixel circuit. The active matrix display panel comprises at least one current mirror circuit associated with a first group, comprising a first current mirror, arranged to mirror a reference current flowing through a column line to a first current mirror output.

Abstract: The invention relates to a transcoder (100) for a variable length coded data stream such as an MPEG 2 coded data stream transcoder (100) comprises a receiver (101) which receives the variable length coded data stream. The receiver (101) is connected to a significance processor (107) that determines if a variable length coded coefficient is significant or less significant. The significance processor (107) is connected to a truncation processor (111) which truncates the less significant coefficients. The trancoder further comprises an encode processor (109) which generates a transcoded data stream from the original significant coefficients and the truncated less significant coefficients. All processing may be performed exclusively in the variable length code domain thereby providing a low complexity and high speed transcoder.

Abstract: A generic apparatus (14) re-orders video data for various types of displays, such as plasma discharge panels (PDPs), digital micro-mirror devices (DMDs), liquid crystal on silicon (LCOS) devices, and transpose scan cathode ray tube (CRT) displays. In one embodiment, the apparatus (14) includes a first programmable transpose processor (18), a memory (20, 120), and a second programmable transpose processor (22, 122) fabricated as a single IC unit.

Abstract: Transform based coders are frequently used in digital signal processing. The present invention relates to a method of communicating at least one block of data from a first functional element (3; 4; 7; 12; 14) within a transform based coder (1) or decoder (10) to a second functional element (4; 5; 7; 8; 14; 15) within the coder or decoder, where the block of data comprises a row-column structure of data coefficients. A significant communication workload occurs between individual elements of the coders and decoders.

Abstract: A method for masking faulty sub-pixels in a display having a plurality of pixels formed of a number of sub-pixels, wherein at least one pixel in said display is faulty and comprises at least one sub-pixel having a defect. The method comprises obtaining (S2) a set (15) of sub-pixel values (2, 3, 4) for generating desired perceptive characteristics for said pixel and determining (S3) a modified set (16) of sub-pixel values (2?, 3?, 4?) for generating modified perceptive characteristics for said pixel. This modified set of sub-pixel values is based on information (14) regarding the sub-pixel defect so as to be implementable in the display, and has values chosen to reduce an error perceived by a user. The modified values are then implemented (S4) in the display. The display is preferably of the kind where each pixel comprises a set of primary sub-pixels each emitting a primary color and at least one additional, redundant sub-pixel for emitting an additional color, such as a RGBW display.

Abstract: Method display device and computer program product that reduces motion blur, flicker and loss of brightness of images shown in non-stoboscopic display devices, such as Liquid Crystal or Light Emitting Diodes displays, in which each image of input video signal is displayed during a display time ti, which is less than or equal to a picture period T. The motion and the characteristics of motion are measured and the display time ti is continuously adjusted between O and T depending on this measured motion and the caracteristics of motion. To further reduce flicker and loss of brightness encountered when reducing the display time, anti-mot on blur filtering of the input video signal is performed, where the display time and the amount and sort of filtering is jointly controlled based on the measured motion and characteristics of motion.

Abstract: A motion estimation unit (500) for estimating a current motion vector comprises a match error unit (506) for calculating match errors of respective candidate motion vectors and a selector (508) for selecting the current motion vector from the candidate motion vectors by means of comparing the match errors of the respective candidate motion vectors. Some of the candidate motion vectors are extracted from a set of previously estimated motion vectors. Other candidate motion vectors are calculated based on multiple motion vectors which are selected from the set of previously estimated motion vectors.