Abstract: An image display system according to the present invention comprises a generation unit to generate a video signal which is composed of a partial image cut out from a still image; and a display unit to display a video signal inputted from said generation unit at a frame rate higher than that of said inputted video signal by creating an interpolated frame based on a motion vector, wherein said generation unit comprises a movement unit to move a cut-out position of said partial image, and an output unit to output movement information including at least information indicative of the direction of movement of said cut-out position together with said video signal, and wherein said display unit has a setting unit to set a motion vector used for the creation of said interpolated frame by using said movement information.

Abstract: The present invention discloses a control apparatus. This control apparatus has a modulation circuit, and a control circuit for setting up an amplitude setting signal and/or a pulse width setting signal to be used in the modulation circuit, on the basis of characteristic data representative of characteristics of an input image signal, the amplitude setting signal and/or the pulse width setting signal being used for setting up an amplitude and/or a time width of a pulse signal to be output from the modulation circuit in accordance with a gradient gradation value of the image signal, wherein the modulation circuit is a circuit which uses the time width setting signal and/or the amplitude setting signal as a reference signal for setting up the time width and amplitude of the pulse signal in correspondence with the gradient.

Abstract: In the image display device according to the present invention, control is performed such that a condition of not using a subsidiary pixel which corresponds to a specific color among the subsidiary pixels constituting a first pixel is selected as a condition for signal processing to output a signal for designating intensity of each subsidiary pixels constituting the first pixel, and a condition of using a subsidiary pixel which corresponds to a specific color among the subsidiary pixel constituting a second pixel is selected as a condition for signal processing to output a signal for designating intensity of each subsidiary pixels constituting the second pixel adjacent to the first pixel in the first direction.

Abstract: A signal processing method includes a first step of calculating a value indicating a value obtained by multiplying a ratio of the number of times of inputting the input signal having any one of values from p to m, where m is a maximum value of values of input signal which are subject to said signal processing and p is a value smaller than m and not a minimum value of the input signal, within a predetermined period to the number of times of inputting the input signal within the predetermined period, by the variable range of the converted value; and a second step of subtracting the calculated value from a maximum value within the variable range of the converted value or a value near the maximum value, wherein the input signal is converted according to the conversion characteristic specified based on a value obtained by subtraction.

Abstract: A display device includes a plurality of display elements and a correction circuit which outputs signals obtained by performing correction on input signals to the respective display elements, and the correction circuit performs the correction so that a spatial frequency distribution of luminance obtained by driving the respective display elements by using the signals obtained by performing the correction on the input signals indicative of predetermined luminance becomes a spatial frequency distribution in which a predetermined frequency component is reduced from among frequency components contained in a spatial frequency distribution of luminance obtained by driving the respective display elements without performing the correction on the input signals indicative of the predetermined luminance and at least a portion of frequency components lower than the predetermined frequency component is left.

Abstract: An image display apparatus of this invention includes a neighborhood data integration section 20 which integrates image data on respective colors corresponding to electron emitting devices proximate to an electron emitting device to be driven, and corresponding to a phosphor contributing to a halation, an adder 6 adds the integrated image data R22, G22, and B22 on the respective colors, a coefficient operation section 7 which multiplies an addition result by a predetermined coefficient according to a luminous intensity of the halation, an adder 8 which adds outputs R23, G23, and B23 obtained by inverting a sign of multiplication results to image data R14, G14, and B14 corresponding to the electron emitting device to be driven, respectively, and a comparator 11 which compares an addition result with zero in magnitude, and which outputs a driving signal R25 for the respective colors.

Abstract: The invention provides an image data processing apparatus including a memory for storing plural values indicating plural brightnesses when a predetermined display element is driven based on discrete plural drive values, and an operation circuit for converting a first conversion value converted from input image data, based on a value read out from the memory thereby generating the drive value, wherein the operation circuit executes an operation for evaluating a difference between the first conversion value and the value indicating brightness, and an operation for obtaining the drive value according to a result of the evaluation.

Abstract: An image display apparatus of this invention includes a neighborhood data integration section 20 which integrates image data on respective colors corresponding to electron emitting devices proximate to an electron emitting device to be driven, and corresponding to a phosphor contributing to a halation, an adder (6)adds the integrated image data (R22, G22, and B22) on the respective colors, a coefficient operation section (7) which multiplies an addition result by a predetermined coefficient according to a luminous intensity of the halation, an adder (8) which adds outputs (R23, G23, and B23) obtained by inverting a sign of multiplication results to image data (R14, G14, and B14) corresponding to the electron emitting device to be driven, respectively, and a comparator (11) which compares an addition result with zero in magnitude, and which outputs a driving signal (R25) for the respective colors.

Abstract: A signal processing method includes a first step of calculating a value indicating a value obtained by multiplying a ratio of the number of times of inputting the input signal having any one of values from p to m, where m is a maximum value of values of input signal which are subject to said signal processing and p is a value smaller than m and not a minimum value of the input signal, within a predetermined period to the number of times of inputting the input signal within the predetermined period, by the variable range of the converted value; and a second step of subtracting the calculated value from a maximum value within the variable range of the converted value or a value near the maximum value, wherein the input signal is converted according to the conversion characteristic specified based on a value obtained by subtraction.

Abstract: Color saturation in chroma correction is reduced. Hence, a two-dimensional histogram is generated in association with the luminance and chroma levels of an image for one frame. An ease of saturation of the image is calculated from the two-dimensional histogram. A chroma gain is set according to the ease of saturation. Color-difference signals undergo chroma correction according to the chroma gain k.

Abstract: A data processing method of executing nonlinear conversion for pixel data, comprising: a first step of obtaining an amount of statistics corresponding to the number of pixel data have a gradation value in a predetermined range from a plurality of pixel data for displaying a predetermined image; a second step of obtaining a parameter corresponding to the distribution condition of the gradation values of the plurality of pixel data; an adjusting step of adjusting the amount of statistics based on the parameter; and a determining step of determining a conversion characteristic of the nonlinear conversion based on the adjusted amount of statistics.

Abstract: A signal processing method comprises the steps of: inputting three signals specifying a color of one pixel; and generating four signals from the input three signals, wherein each of said four signals represents intensities of four different colors to display a color of one pixel by mixing colors, wherein said generating step includes a first converting step of converting the input three signals to two signals representing intensities of two colors among the four colors and a signal representing intensity of a mixed color obtained by mixing (a) the four colors or (b) a plurality of colors among the four colors; and a second converting step of converting the signal representing intensity of the mixed color to a plurality of signals representing intensities of a plurality of colors including at least other two colors different from the two colors.

Abstract: The present invention relates to an image display apparatus for forming an image with a plurality of luminescent spots to be precisely aligned in a matrix. For example, a spacer disposed between an electron source and a face plate causes luminescent spots on the face plate spaced unevenly. The luminescent spots spaced unevenly will produce a visual unevenness in luminance which deteriorates the quality of produced image. By modifying the quantity of light of luminescent spots spaced unevenly, the visual unevenness in luminance is compensated.

Abstract: An image forming apparatus for executing gradation correction processing to input image data, comprises: adding means for adding any signal value in a range of predetermined lower limit and upper limit in every pixel, to each pixel value of input image data; measuring means for measuring gradation distribution divided in a plurality of distribution ranges on the basis of gradation values of a predetermined number of pixels to which the signal values are added by the adding means; and generating means for generating gradation correction data for correcting the input image data in each pixel of the predetermined number on the basis of the gradation distribution measured by the measuring means.

Abstract: In the image display device according to the present invention, control is performed such that a condition of not using a subsidiary pixel which corresponds to a specific color among the subsidiary pixels constituting a first pixel is selected as a condition for signal processing to output a signal for designating intensity of each subsidiary pixels constituting the first pixel, and a condition of using a subsidiary pixel which corresponds to a specific color among the subsidiary pixel constituting a second pixel is selected as a condition for signal processing to output a signal for designating intensity of each subsidiary pixels constituting the second pixel adjacent to the first pixel in the first direction.

Abstract: An image display apparatus of this invention includes a neighborhood data integration section 20 which integrates image data on respective colors corresponding to electron emitting devices proximate to an electron emitting device to be driven, and corresponding to a phosphor contributing to a halation, an adder (6) adds the integrated image data (R22, G22, and B22) on the respective colors, a coefficient operation section (7) which multiplies an addition result by a predetermined coefficient according to a luminous intensity of the halation, an adder (8) which adds outputs (R23, G23, and B23) obtained by inverting a sign of multiplication results to image data (R14, G14, and B14) corresponding to the electron emitting device to be driven, respectively, and a comparator (11) which compares an addition result with zero in magnitude, and which outputs a driving signal (R25) for the respective colors.

Abstract: The present invention relates to an image display apparatus for forming an image with a plurality of luminescent spots to be precisely aligned in a matrix. For example, a spacer disposed between an electron source and a face plate causes luminescent spots on the face plate spaced unevenly. The luminescent spots spaced unevenly will produce a visual unevenness in luminance which deteriorates the quality of produced image. By modifying the quantity of light of luminescent spots spaced unevenly, the visual unevenness in luminance is compensated.

Abstract: An image display apparatus of this invention includes a neighborhood data integration section 20 which integrates image data on respective colors corresponding to electron emitting devices proximate to an electron emitting device to be driven, and corresponding to a phosphor contributing to a halation, an adder 6 adds the integrated image data (R22, G22, and B22) on the respective colors, a coefficient operation section (7) which multiplies an addition result by a predetermined coefficient according to a luminous intensity of the halation, an adder (8) which adds outputs (R23, G23, and B23) obtained by inverting a sign of multiplication results to image data (R14, G14, and B14) corresponding to the electron emitting device to be driven, respectively, and a comparator 11 which compares an addition result with zero in magnitude, and which outputs a driving signal (R25) for the respective colors.

Abstract: The invention provides an image data processing apparatus including a memory for storing plural values indicating plural brightnesses when a predetermined display element is driven based on discrete plural drive values, and an operation circuit for converting a first conversion value converted from input image data, based on a value read out from the memory thereby generating the drive value, wherein the operation circuit executes an operation for evaluating a difference between the first conversion value and the value indicating brightness, and an operation for obtaining the drive value according to a result of the evaluation.

Abstract: The present invention discloses a control apparatus. This control apparatus has a modulation circuit, and a control circuit for setting up an amplitude setting signal and/or a pulse width setting signal to be used in the modulation circuit, on the basis of characteristic data representative of characteristics of an input image signal, the amplitude setting signal and/or the pulse width setting signal being used for setting up an amplitude and/or a time width of a pulse signal to be output from the modulation circuit in accordance with a gradient gradation value of the image signal, wherein the modulation circuit is a circuit which uses the time width setting signal and/or the amplitude setting signal as a reference signal for setting up the time width and amplitude of the pulse signal in correspondence with the gradient.