Patent application number | Description | Published |
20090284544 | DISPLAY DEVICE, PROGRAM, AND INFORMATION STORAGE MEDIUM - A display device includes: a brightness histogram information producing unit that produces brightness histogram information on the basis of an image signal; an APL calculating unit that calculates an APL on the basis of the brightness histogram information; a highest class determining unit that determines a highest class, which is a class with a highest brightness, on the basis of the brightness histogram information; an APL difference value calculating unit that calculates an APL difference value which is a difference value between an APL of a previous frame and an APL of a current frame; and a white peak value determining unit that determines a white peak value of a current frame by adding a predetermined value to a white peak value of a previous frame when a highest class difference absolute value, which is an absolute value of a difference value between a highest class of the previous frame and a highest class of the current frame, is less than a threshold value and that determines a white peak value of the current frame by performing a predetermined operation regardless of a white peak value of the previous frame when the highest class difference absolute value is equal to or larger than the threshold value. | 11-19-2009 |
20100050125 | PROJECTOR - Aspects of the invention provide a projector capable of projecting desired image information by enabling the user to select easily and promptly an image input interface terminal into which the desired image information is inputted, among image input interface terminals. The projector can include image input I/Fs into which image signals from image input devices are inputted, a touch panel having a liquid crystal display to display image information inputted from the image input I/Fs, a thumbnail generating portion to generate thumbnail images to be displayed on the liquid crystal display, and a changeover switch to selectively switch the image input I/Fs by operations on the touch panel. Image information inputted from the selected image I/F can be projected. This enables the user to select desired image information promptly for the desired image information to be projected. | 02-25-2010 |
20100110285 | DISPLAY SYSTEM, IMAGE OUTPUT DEVICE AND IMAGE DISPLAY DEVICE - A display system includes: an image data output device which outputs image data; an image display device which displays an image corresponding to the image data; and a control device which controls the image data output device; wherein one of the control device and the image data output device has a compression rate setting unit which determines whether the image corresponding to the image data is a natural image or not and sets a compression rate for the image in accordance with a type of the image; and the image data output device has an image data output unit which outputs a compressed image data acquired by compressing the image data at the compression rate set by the compression rate setting unit. | 05-06-2010 |
20100214487 | Moving image display device and moving image display method - To provide a technology for performing brightness range expansion processing suitable for a scene change when a scene change occurs. If an expansion coefficient output mode determination module | 08-26-2010 |
20110012915 | IMAGE DISPLAY DEVICE AND IMAGE DISPLAY METHOD - Technology for carrying out a luminance range expansion process is provided. In the technology, the luminance range expansion process is carried out in a manner appropriate to the luminance histogram of image data. Using the white peak value WP which represents the maximum value of luminance and the APL which represents the mean value thereof in the luminance histogram of image data, an expansion coefficient for use in the luminance range expansion process is derived by referring to an expansion coefficient lookup table | 01-20-2011 |
20120019524 | IMAGE DISPLAY DEVICE, IMAGE SUPPLY DEVICE, AND IMAGE PROCESSING METHOD - An image display device includes: a feature value calculating section which calculates an image feature value related to the brightness of image data using parallax between image data for a right eye and image data for a left eye which form 3D image data; an expanding coefficient calculating section which calculates an expanding coefficient, which is related to brightness expand processing, on the basis of the image feature value; a brightness expanding processing section which performs brightness expanding processing on the image data for the right eye and the image data for the left eye on the basis of the expanding coefficient; and an image display section which displays an image on the basis of the image data for the right eye and the image data for the left eye subjected to the brightness expanding processing. | 01-26-2012 |
20120019568 | IMAGE DISPLAY APPARATUS, IMAGE DISPLAY METHOD, AND IMAGE SUPPLY APPARATUS - A stereoscopic image display apparatus includes an image output unit that outputs right-eye image data and left-eye image data that form stereoscopic image data, a characteristic value calculating unit that calculates brightness-related image characteristic values of at least one of the right-eye image data and the left-eye image data, a expanding coefficient calculating unit that calculates a expanding coefficient common to the right-eye image data and the left-eye image data based on the image characteristic values, a brightness expanding unit that performs brightness expanding on both the right-eye image data and the left-eye image data by using the expanding coefficient, and an image display unit that displays an image based on the right-eye image data and the left-eye image data having undergone the brightness expanding. | 01-26-2012 |
20130021363 | MOVING IMAGE DISPLAY DEVICE AND MOVING IMAGE DISPLAY METHOD - To provide a technology for performing brightness range expansion processing suitable for a scene change when a scene change occurs. If an expansion coefficient output mode determination module | 01-24-2013 |
20130088693 | PROJECTOR - A projector includes: a discharge lamp; a discharge lamp drive section which supplies an electric power to the discharge lamp; and a control section which controls the discharge lamp drive section, wherein a period interposed between the switching timings which are temporally adjacent to each other starts in a first period and ends in a second period, wherein the control section controls, on the basis of a correlation pattern which indicates the correlation between a first electric power and a second electric power, the discharge lamp drive section to supply the first electric power to the discharge lamp in the first period and to supply the second electric power to the discharge lamp in the second period, and wherein the correlation pattern includes a pattern in which as the second electric power is decreased, the ratio of the first electric power to the second electric power is increased. | 04-11-2013 |
20130335410 | IMAGE DISPLAY APPARATUS AND METHOD FOR CONTROLLING THE SAME - When a user instructs a control unit about a position in a substantially central portion of an illustration with an electronic pen, the control unit determines a rectangular area that surrounds the illustration as an enhancement area. An image adjustment unit carries out a process of shifting the portion in the enhancement area in an image for the left eye rightward by a predetermined amount and shifting the portion in the enhancement area in an image for the right eye leftward by a predetermined amount. As a result, the illustration located in the enhancement area is so changed that the image for the left eye is shifted to a position to the right of the image for the right eye and hence recognized as if the illustration were located in front of other illustrations. The illustration in the enhancement area is thus enhanced. | 12-19-2013 |
20140078167 | DIMMING CONTROL DEVICE, IMAGE DISPLAY DEVICE, AND DIMMING CONTROL METHOD - A light control device adjusts light intensity. The light control device determines whether or not the image based on an image signal is a correction object based on an image feature quantity of the image signal, and set adjustment information for adjusting intensity of light based on the determined result. Then, the light control device adjusts the light intensity of the light for the image display based on the adjustment information. | 03-20-2014 |
20140240358 | IMAGE PROCESSING DEVICE, PROJECTOR, AND IMAGE PROCESSING METHOD - An image processing device includes a selection section adapted to select a first correction point among a plurality of correction points included in a correcting image, an identification section adapted to identify a second correction point and a third correction point adjacent to the first correction point, and a display control section adapted to emphasize a first line segment connecting the first correction point and the second correction point to each other, and a second line segment connecting the first correction point and the third correction point to each other, and display the correcting image on a display section. | 08-28-2014 |
20140253581 | IMAGE PROCESSING DEVICE, PROJECTOR, AND IMAGE PROCESSING METHOD - An image processing device includes a first extension ratio calculation section adapted to calculate a first extension ratio based on a grayscale value included in first image data, a second extension ratio calculation section adapted to calculate a second extension ratio based on a grayscale value included in second image data, a first extension section adapted to correct the grayscale value included in the first image data based on the first extension ratio, a second extension section adapted to correct the grayscale value included in the second image data based on selected one of the first extension ratio and the second extension ratio, and a combination section adapted to generate composite image data obtained by combining the first image data having the grayscale value corrected by the first extension section and the second image data having the grayscale value corrected by the second extension section with each other. | 09-11-2014 |
20140285538 | IMAGE PROCESSING APPARATUS, PROJECTOR, AND IMAGE PROCESSING METHOD - An image processing apparatus includes a signal generation section that generates a drive signal to drive a light attenuation member that attenuates light radiated from a light source based on a difference between first transmittance and second transmittance, the first transmittance being a target value calculated based on image data and the second transmittance being detected based on the position of the light attenuation member, an expansion factor calculation section that calculates an expansion factor based on the first transmittance and the second transmittance, an expansion section that expands the range of the distribution of luminance values in the image data based on the expansion factor calculated by the expansion factor calculation section, and an output section that outputs the image data expanded by the expansion section to a driver that drives a light modulator that modulates light incident thereon. | 09-25-2014 |
20150022554 | IMAGE DISPLAY DEVICE AND IMAGE DISPLAY METHOD - An image display device includes a combining section adapted to generate a composite image obtained by combining an OSD image with a first region of an input image, a setting section adapted to set a third region in the composite image based on the first region and a second region set at a predetermined position, a calculation section adapted to calculate a feature amount related to a luminance in the third region, and an expansion section adapted to expand a grayscale range of the luminance of the composite image based on the feature amount. The setting section sets the third region so as to include the first region and the second region in a case in which the combining section combines the OSD image, and in the case in which at least a part of the first region is located outside the second region. | 01-22-2015 |