摘要:
A full-color display device, comprising: a) a display having a plurality of sub-pixels formed in rows or columns in a first dimension including at least three different color sub-pixels forming a color gamut, and grouped into pixels within each row or column, each pixel including at least two of the gamut-specifying color sub-pixels and at least one additional sub-pixel having a color within the gamut and an efficiency higher than at least one of the color sub-pixels, wherein at least one pixel is defective and comprises one defective additional in-gamut sub-pixel; and b) a controller for driving the display pixels and for transforming an input signal into a compensated signal for selectively modifying the output of at least one color sub-pixel in the defective pixel, at least one other, but not all, of the color sub-pixels in a neighboring pixel in the first dimension, and additional in-gamut sub-pixels in neighboring pixels in a second dimension, the at least one other color sub-pixel including the sub-pixel in the neighboring pixel that is closest to the defective sub-pixel, to compensate for the output of the defective sub-pixel(s).
摘要:
A solid-state area illumination system includes multiple LED devices, each LED device is formed on a separate substrate and each LED device emits differently colored light at different angles relative to the substrate. The peak frequencies of each color of light differ by at least the smallest of the full width half maximums of the frequency distributions of emitted light. Also included is a support for positioning each of the LED devices at multiple orientations relative to an area of illumination upon a surface, so that any point within the area of illumination will receive multiple colors of light from more than one of the LED devices at different angles. Each LED device includes one or more light-emitting elements, each light-emitting element having multiple sizes of core/shell quantum-dot emitters formed in a common polycrystalline semiconductor matrix.
摘要:
An electro-luminescent device has an array of light-emitting elements, including a near white light-emitting element. The near white light-emitting element includes an inorganic light-emitting layer of quantum dots, spaced between a pair of electrodes. The light-emitting layer produces a spectrum of light having at least a bimodal distribution of wavelengths.
摘要:
A system (10) for two-dimensional (2-D) or three-dimensional (3-D) display of images includes a projector (100) for projecting the images; a processor (20) for determining whether to project 2-D or 3-D images; glasses (30) for viewing the 3-D images; a first transmitter (22) for synchronizing the projector with the glasses for viewing 3-D images; a switch (34) in the glasses to detect whether the glasses are on or off; a second transmitter (36) in the glasses for transmitting on/off position information; a receiver (24) for receiving switch position information from the second transmitter; wherein the receiver sends the on/off information to the processor; and wherein the processor switches the projector to project 2-D when the glasses are off.
摘要:
A white light-emitting microcavity light-emitting diode device, comprising: a) A reflective electrode and a semi-transparent electrode formed over a substrate and an unpatterned white-light-emitting layer formed between the reflective electrode and the semi-transparent electrode, the reflective electrode, semi-transparent electrode, and unpatterned white-light-emitting layer forming an optical cavity. Either the reflective or semi-transparent electrode is patterned to form independently-controllable light-emitting sub-pixel elements. b) Color filters are formed over a side of the semi-transparent electrodes opposite the unpatterned white light-emitting-layer in correspondence with the independently-controllable light-emitting elements to form colored sub-pixels. At least one independently-controllable light-emitting element has at least two commonly-controlled portions that together emit substantially white light to form a white sub-pixel. c) The optical cavity of one or more of the commonly-controlled portions of the white sub-pixel comprises optical microcavities tuned to emit light at a different complementary wavelength at an emission angle.
摘要:
A method of making a color electroluminescent display device that includes determining a number of light emitting elements per pixel; and providing a substantially continually variable wavelength set of inorganic light-emitters having a spectral width. The same number of different inorganic light emitters is selected to emit light at the same determined number of different wavelengths and that provide the maximum color gamut area within a perceptually uniform two-dimensional color space. The color electroluminescent display device is formed having the same determined number of light emitting elements per pixel, wherein the light emitting elements in each pixel employ the same determined number of different inorganic light emitters.
摘要:
A method of compensating the uniformity of an EL device that includes measuring the performance of light-emitting elements at three or more different input intensity values. Calculation of parameters a and b, for each light-emitting element, is performed to minimize the sum, for each of the three or more input intensity values i, of a minimization function: f(yi,i,(yi−g(yi,i,a,b))2) where yi is the performance value of the light-emitting element or groups of elements in response to an input intensity value i, and g is a function that is a simplified representation of the performance of the one or more light-emitting elements or groups of elements. A linear transformation function is formed as: f(i)=mi+k, where m and k depend upon the function g, and the parameters a and b.
摘要:
A method and a computer program for determining at least one component of a noise pattern of an imaging device. The method comprises the steps of: providing flat field data; forming a preliminary estimate of banding components by computing one-dimensional averages of the flat field data and carrying out a Fourier analysis of the one dimensional averages; determining the banding components by carrying out a two-dimensional Fourier analysis of the original flat field data, and comparing the result to the preliminary estimate; removing the banding components from the flat field data, to obtain modified flat field data; forming a second preliminary estimate of streaking components by carrying out a Fourier analysis on the modified flat field data; determining the two-dimensional random noise statistics by carrying out a Fourier analysis on the modified flat field data; and determining the streaking components by modifying the preliminary estimate of the streaking components with the two-dimensional random noise statistics.
摘要:
A method for display of stereoscopic images defines at least first and second unequal subsets of viewers and provides at least the first subset of viewers with a first decoding device for viewing displayed stereoscopic images. From a single display apparatus, separate images are displayed for each eye of at least the first and second subsets of viewers in a repeated sequence of displaying the image for the first eye of all viewers during a first time interval; displaying the image for the second eye of the first subset of viewers during a second time interval; and displaying the image for the second eye of the second subset of viewers during a third time interval. The first, second, and third time intervals are non-overlapping.
摘要:
A 2D/3D switchable display system having a selector for selecting a two-dimensional (2D) or a three-dimensional (3D) image processing path; a first processor for processing image data through the two-dimensional image processing path; a second processor, independent of the first processor, for processing image data through the three dimensional image processing path; a first set of at least three emitters having corresponding first wavelengths; a second set of at least three emitters having corresponding second wavelengths; and a controller that during a 2D operation activates both first and second sets of emitters to present a single image, while during a 3D operation activates the first set of emitters to present a first image having one half of stereo image information and activates the second set of emitters to present a second image having a second half of stereo image information.