Patent application number | Description | Published |
20080211973 | Spectrum Sequential Display Having Reduced Cross Talk - A color display device, a drive circuit for a color display device, a method, a signal and a computer-readable medium for reducing electro-optical cross talk that occurs in a display that is operated in Spectrum Sequential mode is disclosed. The invention eliminates annoying visible artefacts, such as contouring, noise, or color deviation, which normally are introduced by this cross talk by compensating for the cross talk. According to embodiments of the invention, a drive signal (R′,G′,B′) to drive picture elements of the display is altered in video processing circuitry (MPC, XTC, SC) and/or software, in dependence on one or more properties of different spectra from a light source ( | 09-04-2008 |
20080225056 | Redistribution of N-Primary Color Input Signals Into N-Primary Color Output Signals - A method of redistributing an N-primary color input signal (IS) having a particular number≧4 (N) of input components (I | 09-18-2008 |
20080252658 | Method of Converting Signals For Multi-Primary Color Display - A method is described which converts a three primary color input signal (Cx, Cy, Cz) into N drive signals (P | 10-16-2008 |
20090115803 | OPTIMAL BACKLIGHTING DETERMINATION APPARATUS AND METHOD - To have an optimal use of a display for displaying particular, e.g. chromatically biased, image content, described is a method of calculating an optimal first and second backlight driving level, for a color display having a backlight which can be controlled to produce a first amount of light with a first spectrum in accordance with the first backlight driving level and a second amount of light with a second spectrum in accordance with the second backlight driving level, and the color display having a first and second light transmission valve plus color filter combination, arranged to create from the backlight spectra a respective first and second color primary light output, the chromaticity of at least one of the color primaries depending on the first and second backlight driving level, wherein the first and second backlight driving levels are determined so that a gamut of at least a part of a picture to be displayed is optimally covered by the gamut realizable by the display with the first and second backlight driving level. | 05-07-2009 |
20100020109 | DYNAMIC GAMUT CONTROL - A method of dynamic gamut control comprises the step of controlling (LD) intensities of at least a subset (PR, PG, PB) of a set of color primaries (PR, PG, PB, PW) associated with corresponding sub-pixels (RP, GP, BP, WP) of a display device. The method further comprises the step of searching (PC) for a minimal intensity value (Ra; Ga; Ba) of one of the color primaries of the subset (PR; PG; PB) being adjusted, to obtain together with the other color primaries (WP) of the set of color primaries (PR, PG, PB, PW) an adjusted color gamut (GG | 01-28-2010 |
20100060659 | COLOUR CONVERSION FOR A MULTY-PRIMARY DISPLAY - A multi-primary conversion method for converting (CON) an input vector (CIP) defining a color of an input pixel in a linear color space (X, Y, Z) into a drive vector (PD) having n components for driving n display primaries (P1, . . . , Pn) of a display color space. The drive vector (PD) comprises m sub-drive vectors (PDi) for driving m groups of the display primaries (P1, . . . , Pn). The conversion method comprises: determining ( | 03-11-2010 |
20100238203 | DRIVING PIXELS OF A DISPLAY | 09-23-2010 |
20110096249 | METHOD FOR PROCESSING VIDEO DATA FOR A LIQUID CRYSTAL DISPLAY - Consistent with an example embodiment, there is a method for a method for processing video data, the video data being adapted for being displayed on a locally dimmable liquid crystal display. The method comprises color enhancing the video data. The method further comprises determining dimming factors corresponding to primary color components of the video data corresponding to a pixel of the locally dimmable liquid crystal display based on the color enhanced video data. The method furthermore comprises determining a color correction of the color enhanced video data corresponding to the pixel of the locally dimmable liquid crystal display based on the dimming factors. The method also comprises processing the video data based on the determined color correction. | 04-28-2011 |
20120133835 | SELECTIVE COMPENSATION FOR AGE-RELATED NON UNIFORMITIES IN DISPLAY - A video signal compensator ( | 05-31-2012 |
20120194578 | DYNAMIC GAMUT CONTROL - A method of dynamic gamut control is provided for a display having a multi-spectral (typically multi-color) backlight, and sub-pixels corresponding to the different backlight spectra and at least one common sub-pixel. The display may for example be an RGBW display having an RGB backlight. The method comprises iteratively calculating the minimum required backlight intensities that will allow all (selected) color points of an image to be represented by the display. The determination for a light source of the backlight is based on determinations of intensities determined for other light sources in a previous iteration. In some embodiments, the approach allows for a clipping of a number of the color points. The invention may reduce power consumption while maintaining a high image quality and can be implemented computationally very efficiently. | 08-02-2012 |
20130169796 | LIGHT SYSTEM FOR EMPHASIZING OBJECTS - Light-emitting devices ( | 07-04-2013 |
20130176727 | SEGMENTED SPOTLIGHT HAVING NARROW BEAM SIZE AND HIGH LUMEN OUTPUT - The invention relates to an optical module comprising two or more segments positioned around an axis of symmetry of the module. Each segment includes a light collimating structure for providing a predefined light distribution of light exiting the module and a light source assembled in a cavity within the light collimating structure. The center of the cavity coincides with the optical axis of the light collimating structure and is at a distance (d) from the axis of symmetry of the module. Including two or more segments where each segment comprises its own light source allows obtaining higher lumen output compared to prior art luminaires having only one light source while arranging the segments so that the center of each cavity coincides with the optical axis of the collimating structure of the segment allows preserving narrow beamwidth collimation of the light exiting the module. | 07-11-2013 |