Abstract: A pixelated color display where the emission corresponds to a color space comprised of three regions: an outer boundary of the entire color space which is defined by the most saturated colors; an inner region formed by less saturated colors which is defined by an inner region boundary; and between the inner region boundary and the outer boundary, an intermediate region where at least one color is approximated by dithering between a most saturated color and a less saturated color. The dithering can be color spatial, temporal, or physical spatial dithering or combinations thereof. The display is an OLED, preferably a multimodal (white light-emitting) microcavity with a color filter array and can have 3 or more stacks of light-emitting units. The color dithering in the intermediate region allows for generation of colors that cannot be emitted directly by the display.

Abstract: A display with improved visual uniformity, comprised of an array of independently-addressable light-emitting elements, including at least a first independently-addressable light-emitting element for producing a first color of light and a second independently-addressable light-emitting element for producing a second color of light; wherein at least the first independently-addressable light-emitting element is subdivided into at least two spatially separated commonly-addressed light-emitting areas and wherein at least a portion of the second independently-addressable light-emitting element is positioned between the spatially separated commonly-addressed light-emitting areas of the first independently-addressable light-emitting element.

Abstract: A full-color display system having improved apparent resolution comprising: a display formed from an array of full-color groups of light-emitting elements each comprising more than one luma-chroma sub-group of light-emitting elements; and a processor for receiving a full color input image signal that specifies full color image values at each of a two-dimensional number of sampled addressable spatial locations within an image to be displayed, for providing a full color image signal with image signal values corresponding to the spatial location of each luma-chroma sub-group, for computing a control signal representing the relative values, or difference between values, for the image signal values corresponding to each luma-chroma sub-group and at least one of each luma-chroma sub-group's neighbors, and for rendering a signal for driving each light-emitting element within each luma-chroma sub-group of light-emitting elements as a function of the values for the image signal corresponding to each luma-chroma sub-gr

Abstract: An active matrix electro-luminescent display system, comprising: a display composed of an array of regions of light-emitting elements, pixel driving circuits for independently controlling the current to each light-emitting element, one or more display drivers for receiving an input image signal for data to drive the pixel driving circuits and generating a converted image signal for driving the light emitting elements in each region of the display through signals provided through data lines and select lines, wherein the one or more display drivers sequentially receive the input image signal for driving the light emitting elements within each region of the array of regions, analyzes the input image signal received for each region to estimate the current that would result at, at least, one point along at least one power line providing current to each region, if employed without further modification, based upon device architecture and material and performance characteristics of device components, and sequentially

Abstract: An electroluminescent display system, comprising: a) a display composed of an array of regions, wherein the current to each of the regions is provided by a pair of power lines and wherein each region includes an array of light emitting elements for emitting light; b) a pixel driving circuit for independently controlling the current to each light-emitting element in response to an image signal, wherein the intensity of the light output by the light emitting elements is dependent upon the current provided to each light emitting element; and c) a display driver for receiving an input image signal and generating a converted image signal for driving the light emitting elements in the display, wherein the display driver analyzes the input image signal to estimate the current that would result at, at least, one point along at least one of the power lines providing current to each of the regions, if employed without further modification, based upon device architecture and material and performance characteristics of d

Abstract: A curved display device comprising a continuous, curved, concave viewing surface having a surface width W greater than or equal to 48 cm and less than or equal to 200 cm, and wherein a distance D from the center of a straight line segment which connects the centers of the display edges in the width dimension, to the center of the display surface in the horizontal dimension is less than or equal to ((0.215W)?6.5).

Abstract: An OLED display for producing a full color image, comprising a plurality of at least four different colored pixels including three different colored addressable gamut-defining pixels and a fourth addressable within-gamut pixel, each pixel having an organic light-emitting diode with first and second electrodes and one or more organic light-emitting layers provided between the electrodes; the OLED display having a selected display white point, display peak luminance, gamut-defining pixel peak luminances and within-gamut pixel peak luminance; and drive circuitry for regulating luminance of the organic light-emitting diode of each of the colored pixels wherein the sum of the gamut-defining pixel peak luminances is less than the display peak luminance.

Abstract: A color display device, comprising: an array of subpixels of at least four different colors, including at least two relatively higher luminous color subpixels and at least two relatively lower luminous color subpixels, wherein the subpixels are arranged into groups forming at least two distinct types of pixels, each pixel type including the two relatively higher luminous color subpixels and at least one of the two relatively lower luminous color subpixels, and wherein the pixel types are arranged in a pattern such that the relative locations of the two relatively higher luminous color subpixels in each pixel is repeated in adjacent pixels, and the relative location of at least one of the two relatively lower luminance color subpixels is not repeated in at least one adjacent pixel. Various embodiments of the invention enable color display devices with improved image display quality, with both the appearance of jagged lines and the appearance of banding reduced simultaneously.

Abstract: An OLED display system includes a) an OLED display including an array of light emitting pixels, each pixel having a plurality of OLEDs for emitting different colors of light specifying a gamut wherein one of the OLEDs has a power efficiency or lifetime different from the power efficiency or lifetime of at least one of the other OLEDs; b) a control signal; and c) a display driver for receiving a color display signal representing a relative luminance and color to be produced for each pixel of the display and generating a converted color display signal for driving the OLEDs in the display, wherein the display driver is responsive to the control signal for controlling the color gamut saturation of light produced by the OLEDs to reduce power consumption or increase lifetime of at least one of the OLEDs.

Abstract: A display with improved visual uniformity, comprised of an array of independently-addressable light-emitting elements, including at least a first independently-addressable light-emitting element for producing a first color of light and a second independently-addressable light-emitting element for producing a second color of light; wherein at least the first independently-addressable light-emitting element is subdivided into at least two spatially separated commonly-addressed light-emitting areas and wherein at least a portion of the second independently-addressable light-emitting element is positioned between the spatially separated commonly-addressed light-emitting areas of the first independently-addressable light-emitting element.

Abstract: An active matrix electro-luminescent display system, comprising: a display composed of an array of regions of light-emitting elements, pixel driving circuits for independently controlling the current to each light-emitting element, one or more display drivers for receiving an input image signal for data to drive the pixel driving circuits and generating a converted image signal for driving the light emitting elements in each region of the display through signals provided through data lines and select lines, wherein the one or more display drivers sequentially receive the input image signal for driving the light emitting elements within each region of the array of regions, analyzes the input image signal received for each region to estimate the current that would result at, at least, one point along at least one power line providing current to each region, if employed without further modification, based upon device architecture and material and performance characteristics of device components, and sequentially

Abstract: A color display system including a display device for four or more visible color primaries and a processor for controlling the four or more color primaries to selectively render portions of an image or image sequence such that visually equivalent colors displayed in two or more image portions differ in their spectral composition.

Abstract: An OLED display device includes: an array of light emitting pixels, each pixel having red, green, and blue OLEDs and at least one additional colored OLED that expands the gamut of the display device relative to the gamut defined by the red, green and blue OLEDs, wherein the luminance efficiency or the luminance stability over time of the additional OLED is higher than the luminance efficiency or the luminance stability over time of at least one of the red, green, and blue OLEDs; and means for selectively driving the OLEDs with a drive signal to reduce overall power usage or extend the lifetime of the display while maintaining display color accuracy. In accordance with various embodiments, the present invention provides a color display device with improved power efficiency, longer overall lifetime, expanded color gamut with accurate hues, and improved spatial image quality.

Abstract: An OLED display device includes an array of light emitting pixels, each pixel having three or more OLEDs for emitting different colors of light specifying a gamut and at least one additional OLED for emitting a color of light within the gamut, wherein the power efficiency of the additional OLED is higher than the luminance efficiency of at least one of the three or more OLEDs; and means for driving the OLEDs in the pixels to produce a given color and luminance at a reduced power usage.

Abstract: An OLED display system includes a display device having an array of light emitting pixels, each pixel having a plurality of OLEDs for emitting different colors of light specifying a gamut and at least one additional OLED for emitting a color of light within the gamut, wherein the power efficiency of the additional OLED is higher than the power efficiency of at least one of the plurality of OLEDs; means for generating a control signal indicating an amount of contribution to the light output of the display provided by the additional OLEDs; and a display driver for receiving a standard color image signal representing relative luminance and color to be produced for each pixel of the display and generating a converted color image signal for driving the OLEDs in the display, the display driver being responsive to the control signal for controlling an amount of light produced by the additional OLEDs such that the power efficiency of the display may be increased and/or the rate of degradation of the display device ma

Abstract: A color OLED display includes an array of light emitting pixels, each pixel having three light emitting elements for emitting red, green, and blue colors of light specifying a gamut and at least one additional element for emitting a color of light within the gamut and wherein the power efficiency of the additional element is higher than the power efficiency of at least one of the red, green, and blue elements; and wherein the light emitting elements in the pixel are arranged in a two-by-two array having the green light emitting element and the additional element diagonally opposed to each other at two opposite corners of the two-by-two array and having the red and blue light emitting elements diagonally opposed to each other at the other two opposite corners of the two-by-two array, and wherein the additional element is larger than at least one of the red, green or blue light emitting elements.

Abstract: An OLED display system includes an OLED display including an array of light emitting pixels, each pixel having a plurality of OLEDs for emitting different colors of light specifying a gamut and including at least one additional OLED within the gamut defined by the other OLEDs and wherein one of the OLEDs has a power efficiency or lifetime different from the power efficiency or lifetime of at least one of the other OLEDs; a control signal; and a display driver for receiving a color display signal representing a relative luminance and color to be produced for each pixel of the display and generating a converted color display signal for driving the OLEDs in the display at the relative luminance and color, wherein the display driver is responsive to the control signal for controlling the in-gamut mixing ratio of the OLEDs to reduce power consumption or increase lifetime of at least one of the OLEDs.

Abstract: A method of making an improved color OLED display device, includes the steps of: identifying a plurality of different OLED materials having differing chromaticity coordinates, luminance stability over time, and luminance efficiency; calculating an estimate of display lifetime for a plurality of combinations of the different OLED materials used to produce a pixel having a white point with a defined chromaticity coordinate and luminance; and selecting the combination having the maximum lifetime.

Abstract: A method for transforming three color input signals (R, G, B) corresponding to three gamut defining color primaries to four color output signals (R?, G?, B?, W) corresponding to the gamut defining color primaries and one additional color primary W for driving a display having a white point different from W includes the steps of: normalizing the color input signals (R,G,B) such that a combination of equal amounts in each signal produces a color having XYZ tristimulus values identical to those of the additional color primary to produce normalized color signals (Rn,Gn,Bn); calculating a common signal S that is a function F1 of the three normalized color signals (Rn,Gn,Bn); calculating a function F2 of the common signal S and adding it to each of the three normalized color signals (Rn,Gn,Bn) to provide three color signals (Rn?,Gn?,Bn?); normalizing the three color signals (Rn?,Gn?,Bn?) such that a combination of equal amounts in each signal produces a color having XYZ tristimulus values identical to those of the

Abstract: A method for transforming three color input signals (R, G, B) corresponding to three gamut defining color primaries to four color output signals (R?, G?, B?, W) corresponding to the gamut defining color primaries and one additional color primary W for driving a display having emitters that emit light corresponding to the to the four color output signals including calculating a common signal value S as a function F1 of the three color input signals (R,G,B) for a current and neighboring pixels; determining a final common signal value S? based upon the common signals for the current and neighboring pixels; calculating the three color signals (R?,G?,B?) by calculating a value of a function F2 of the final common signal value S? and adding it to each of the three color input signals (R,G,B); and calculating the output signal W as a function F3 of the final common signal value S?.