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公开(公告)号：EP1875455B1
公开(公告)日：2010-03-17
申请号：EP06727921.6
申请日：2006-04-13
IPC分类号： G09G3/34
CPC分类号： G09G3/3413 , G02F1/133514 , G02F1/133621 , G09G3/3607 , G09G2300/0452 , G09G2310/0235
摘要： The color gamut of a image display device is improved by the introduction of a broad band stop filter in combination with a band pass filter, a first light field and a second light field. The first light field is generated by a first and a second light source, emitting blue and green light, respectively. The second light field is generated by said second light source and a third light source emitting red light. The color gamut is improved since the band pass filter facilitates a displacement of the color point of said second light source towards shorter wavelengths, as the band pass filter transmits some of the blue light in the first light field. Similarly, a displacement towards longer wavelengths is facilitated, as the filter transmits some of the red light of said second light field. Hence, four primary colors are generated by only three light sources.
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公开(公告)号：EP1869875A1
公开(公告)日：2007-12-26
申请号：EP06727771.5
申请日：2006-03-30
发明人： HEKSTRA, Gerben, J. , SCHMEITZ, Harold, A., W. , LANGENDIJK, Erno, H., A. , MERTENS, Mark, J., W.
CPC分类号： H04N9/3114 , G09G3/001 , G09G5/02
摘要： The conversion unit (501) for processing an input video signal (Vin) to yield an output video signal (Vout) manifesting less color break-up when displayed on a temporal color display than the input video signal, the conversion unit comprises: an input (508) for a temporal color video signal; - a primary selection unit (511) arranged to obtain at least one picture-adaptive new color primary (IP) being determined striving for an optimization of a portion of a picture energy allocatable to the new color primary, in at least a picture region of the input video signal (Vin); and a color transformation unit (521) arranged to convert the input video signal to the output video signal represented in a color space comprising the at least one new color primary (IP), at least in the at least one picture region.
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公开(公告)号：EP2206352A1
公开(公告)日：2010-07-14
申请号：EP08846423.5
申请日：2008-11-04
IPC分类号： H04N9/64
CPC分类号： G09G3/3413 , G09G5/026 , G09G2340/06
摘要： To have a good resolution/sharpness for the displayed pictures (e.g. low interference banding in case of showing a pattern having Nyquist limit problems), the multiprimary display (100), has more than 3 additive primaries (R,C,G,B), in which that half of the primaries (C,G) having the highest output luminances of the more than 3 additive primaries (R,C,G,B) when a corresponding driving signal (r) for the respective primary is maximal, is generatable by subpixels (104, 108) of the display at approximately equidistant subpixel positions (Dd).
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公开(公告)号：EP1590783B1
公开(公告)日：2007-01-24
申请号：EP04702773.5
申请日：2004-01-16
CPC分类号： G09G5/026 , G09G1/06 , G09G3/2022 , G09G3/2074 , G09G3/36
摘要： A method of displaying an image on a color display comprises receiving image data to be displayed, forming a first sub image and a second sub image from said image data, said first sub image comprising a first set of colors and said second sub image comprising a second set of colors, wherein said first set of colors and said second set of colors are disjoint sets, and wherein said first set of colors and said second set of colors comprise a metamer formed by at least a first color in said first set of colors and at least a second color in said second set of colors, and displaying said image using said first sub image and said second sub image, or a representation thereof, on a color display.
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公开(公告)号：EP1550317A1
公开(公告)日：2005-07-06
申请号：EP03799035.5
申请日：2003-09-30
发明人： HEKSTRA, Gerben, J. , CORNELISSEN, Hugo, J. , DE BOER, Dirk, K., G. , BROER, Dirk, J. , JAK, Martin, J., J. , LANGENDIJK, Erno, H., A. , VELTHOVEN, Leo, J. , KLOMPENHOUWER, Michiel, A.
IPC分类号： H04N9/31
CPC分类号： G09G3/3413 , G09G2300/0452 , G09G2310/0235 , G09G2320/0242 , G09G2320/0247 , H04N9/3111 , H04N9/3155
摘要： 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.
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公开(公告)号：EP2122603A1
公开(公告)日：2009-11-25
申请号：EP08709979.2
申请日：2008-02-11
发明人： JACOBS, Jean, P. , VAN WOUDENBERG, Roel , LANGENDIJK, Erno, H., A. , LANKHORST, Martijn, H., R. , HARBERS, Gerard
IPC分类号： G09G3/34 , G02F1/13357
CPC分类号： G02F1/133603 , G02F2001/133614 , G09G3/3426 , G09G2320/062 , G09G2320/0626 , G09G2320/066 , G09G2330/021 , G09G2360/144
摘要： An illuminating member (4) that, independent of any image content, comprises a central region (5) and an enclosing region (6), wherein said enclosing region (6) is adapted to emit light of lower quality than the light emitted by the central region (5). The illuminating member is adapted to illuminate a display panel (2) of a display device. Byhaving the enclosing region emit light of lower brightness (dimming) a significant power reduction can be achieved for a wide range of typical images while largely maintaining the perceived image quality. Further, byusing light emitting elements of lower quality for the enclosing region, manufacturing costs may be reduced while largely maintaining the perceived image quality.
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7.发明公开CONVERTING A THREE-PRIMARY INPUT COLOR SIGNAL INTO AN N-PRIMARY COLOR DRIVE SIGNAL 审中-公开CONVERTING三原色输入颜色信号在N-PRIMARY颜色控制信号
公开(公告)号：EP1875460A1
公开(公告)日：2008-01-09
申请号：EP06727963.8
申请日：2006-04-19
IPC分类号： G09G5/02
CPC分类号： G09G5/02 , G09G2300/0452 , G09G2310/0235 , G09G2340/06
摘要： A method of converting a three-primary input color signal (IS) comprising three input components (R, G, B) per input sample into an N-primary color drive signal (DS) comprising N ≥ 4 drive components (D1, ..., DN) per output sample for driving N sub-pixels (SP1, ..., SPN) of a color additive display. The N sub-pixels (SP1, ..., SPN) have N primary colors. The method comprises adding (10), to three equations defining a relation between the N drive components (D1, ..., DN) and the three input components (R, G, B), at least one linear equation defining a value for a combination of a first subset of the N drive components (D1, ..., DN) and a second subset of the N- drive components (D1, ..., DN) to obtain an extended set of equations. The first subset comprises a first linear combination (LC1) of 1 ≤ M1
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公开(公告)号：EP1829022A2
公开(公告)日：2007-09-05
申请号：EP05850842.5
申请日：2005-12-05
IPC分类号： G09G3/20
CPC分类号： G02F1/133514 , G02F2201/52 , G09G3/20 , G09G3/2074 , G09G2300/0443 , H01L27/3213
摘要： An improved subpixel arrangement for pixelated displays, wherein cross- shaped elements comprising a yellow subpixel surrounded by blue subpixels are distributed over the surface of the display. Further red and green subpixels can be arranged such that white light is emitted from three adjacent rows and three adjacent columns of a pixel comprising said cross-shaped element.
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9.发明公开
公开(公告)号：EP1590784A1
公开(公告)日：2005-11-02
申请号：EP04701658.9
申请日：2004-01-13
CPC分类号： G09G3/2003 , G02B5/201 , G09G1/06 , G09G3/3611 , G09G2300/0452
摘要： A display comprises a plurality of first, second, third and fourth display elements, which are controllable to display first, second, third and fourth primary colors, respectively. A particular pair of said display elements, which represents a maximum color distance compared to other pairs of said display elements, is arranged such that there is a minimal spatial distance between the elements of said particular pair or that the elements of said particular pair are situated next to each other.
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公开(公告)号：EP1869875B1
公开(公告)日：2012-05-16
申请号：EP06727771.5
申请日：2006-03-30
发明人： HEKSTRA, Gerben, J. , SCHMEITZ, Harold, A., W. , LANGENDIJK, Erno, H., A. , MERTENS, Mark, J., W.
CPC分类号： H04N9/3114 , G09G3/001 , G09G5/02
摘要： The conversion unit (501) for processing an input video signal (Vin) to yield an output video signal (Vout) manifesting less color break-up when displayed on a temporal color display than the input video signal, the conversion unit comprises: an input (508) for a temporal color video signal; - a primary selection unit (511) arranged to obtain at least one picture-adaptive new color primary (IP) being determined striving for an optimization of a portion of a picture energy allocatable to the new color primary, in at least a picture region of the input video signal (Vin); and a color transformation unit (521) arranged to convert the input video signal to the output video signal represented in a color space comprising the at least one new color primary (IP), at least in the at least one picture region.
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