| Patent application number | Description | Published |
|---|
| 20080278468 | Electro-optical device, driving circuit and driving method of the same, and electronic apparatus - A driving circuit of an electro-optical device wherein one field is divided into p (p is an integer that is equal to or more than two) groups and each group is divided into two sub-fields. The p groups each are set to have the length of a time period that is equal to one another. The 2p sub-fields that constitute the one field are set to different lengths of time periods in such a manner that a boundary between two sub-fields of each group is shifted by a predetermined interval compared to the boundary between the two sub-fields of the preceding group. The different gray scale values are expressed by turning on a single sub-field or n (n is an integral number that is equal to two or more and that is equal to or less than 2p) sub-fields that are adjacent to each other. | 11-13-2008 |
| 20080291520 | Image display device, image display method, and image display program - An image display device having an optical modulation element, which modulates light emitted from a light source according to display information, and displaying a display image based on the display information includes: a unit adjusting the amount of illumination light with respect to light emitted from the light source on the basis of brightness information on the brightness of the display image based on the display information; a color conversion processing unit that performs a color conversion process according to the brightness information with respect to the display information so that the display image can be color-reproduced within a predetermined color space; and a display and driving unit that drives the optical modulation element on the basis of the display information having been subjected to the color conversion process so as to display the display image. | 11-27-2008 |
| 20080297877 | Image display device, image display method, and image display program - An image display device having an optical modulation element, which modulates light emitted from a light source according to display information, and displaying a display image based on the display information includes: a unit adjusting the amount of illumination light with respect to light emitted from the light source on the basis of brightness information on the brightness of the display image based on the display information; a color conversion processing unit that performs a color conversion process according to the brightness information with respect to the display information so that the display image can be color-reproduced within a predetermined color space; and a display and driving unit that drives the optical modulation element on the basis of the display information having been subjected to the color conversion process so as to display the display image. | 12-04-2008 |
| 20090002313 | Lighting apparatus and projection type display, and driving method therefor - A lighting apparatus used for a projection type display is provided, which can change the incident ray volume to an optical modulation device without changing the optical output intensity of the lamp, and can exhibit excellent effects in expressive power of an image and adaptability to the use environment. The lighting apparatus of the present invention comprises; a light source, two fly-eye lenses constituting a uniform lighting device, and a shading plate arranged between these fly-eye lenses and constituting a dimming device for adjusting the amount of light of the outgoing light from the light source. The angle of inclination of the shading plate is controlled based on an image signal supplied to the optical modulation device, thereby enabling adjustment of the amount of light. | 01-01-2009 |
| 20090079769 | DRIVING METHOD, DRIVING CIRCUIT, ELECTRO-OPTICAL DEVICE, AND ELECTRONIC APPARATUS - A display device includes a data converting section that converts display data that is to be supplied to pixel units. The data converting section converting on the basis of a predetermined conversion rule for each of a plurality of fields. The plurality of fields corresponds to respective light emission time periods of the plurality of light beams and following one after another in a successive manner on a time axis. The predetermined conversion rule converts data for a preceding field of one color to achieve a value in a successive field of a different color, such that the value approaches a desired value for at least one of brightness and color obtained when an image is displayed in the display area during the successive field. | 03-26-2009 |
| 20090195561 | ELECTRO-OPTICAL DEVICE, DRIVING CIRCUIT AND DRIVING METHOD OF THE SAME, AND ELECTRONIC APPARATUS - A driving circuit of an electro-optical device includes a scanning line driving circuit and a data line driving circuit. When a writing scanning line is selected, the data line driving circuit supplies a data signal of an on or off voltage allocated to a sub-field corresponding to the selection in terms of a gray scale of the pixel corresponding to the selected one of the writing scanning lines and one of the data lines. Among the plurality of sub-fields, the length of a time period of the shortest sub-field is set shorter than the length of a time period required to select, by the scanning line driving circuit, the plurality of writing scanning lines. | 08-06-2009 |
| 20100060556 | Display Device and Light Adjusting Method Thereof - The invention provides a display device and a light adjusting method thereof capable of carrying out light adjustment effectively by the output control of a light source and, preferably, of effecting light adjustment according to color distribution of a displayed image. The display device of the invention that is capable of adjusting a displayed image by changing light flux can include a plurality of light sources having light emitting diodes, an image analyzing unit for outputting a light control signal for controlling the output of each of the light sources, based on an image signal of the displayed image, and a light control device for controlling the output of each of the light sources based on the light control signals. | 03-11-2010 |
| 20100165218 | Display Device, Display Method, and Projection Type Display Device - Aspects of the invention can provide a display device, a display method, and a projection type display device that allow a characteristic of a display image such as brightness to be continuously changed. The display device can include a light source capable of emitting a plurality of different color lights and a white light, and an optical modulation device for modulating light corresponding to the lights emitted from the light source. The ratio of the period of emitting the white light relative to the total of the periods of emitting the lights from the light source can be variable. | 07-01-2010 |
| 20100321417 | DISPLAY DEVICE AND PROJECTION DISPLAY DEVICE - The invention provides a display device, a direct-view display device, and a projection display device in which their apparent dynamic ranges are increased with less color change. The display device can include a light modulation device having a plurality of pixels for displaying an image according to an image signal, a light source for illuminating the light modulation device, and a light-source driving device for controlling the intensity of light emitted from the light source by controlling the period in which the light source is lit at a specified brightness per unit time. | 12-23-2010 |
| 20110051006 | VIDEO PROCESSING CIRCUIT, VIDEO PROCESSING METHOD, LIQUID CRYSTAL DISPLAY APPARATUS, AND ELECTRONIC APPARATUS - Provided is a video processing circuit which designates an applied voltage, which is to be applied to a liquid crystal element of each pixel, based on a video signal, including: a first boundary detection portion which analyzes a video signal of a current frame and detects a boundary between a pixel, to which an applied voltage near a maximum grayscale is applied, and a pixel, to which an applied voltage near a minimum grayscale is applied, based on the video signal; a second boundary detection portion which analyzes a video signal of a frame preceding the current frame and detects a boundary between the pixel, to which the applied voltage near the maximum grayscale is applied, and the pixel, to which the applied voltage near the minimum grayscale is applied, based on the video signal; and a correction portion which corrects the applied voltage to a voltage which provides an initial tilt angle to a liquid crystal molecule in a case where the applied voltage designated with the video signal of a pixel adjacent to a portion changed from the boundary detected by the second boundary detection portion among the boundaries detected by the first boundary detection portion is lower than the voltage which provides the initial tilt angle to the liquid crystal molecule. | 03-03-2011 |
| 20110058111 | LIQUID CRYSTAL DISPLAY DEVICE, DRIVING METHOD AND ELECTRONIC DEVICE - A liquid crystal display device includes: pixel that corresponds to intersection of scanning line and data line and that each change the transmittance or reflectance of a liquid crystal element by means of a pair of electrodes; a scanning line driving circuit that selects scanning line and applies a selection voltage to the selected scanning line; and a data line driving circuit that applies writing voltages through the data line to the pixel that corresponds to the selected scanning line, wherein the scanning line driving circuit applies the selection voltage to the selected scanning line for video signal writing periods and setting periods that start before the video signal writing periods, respectively, the data line driving circuit supplies, to the pixel, data signals with voltages corresponding to video signals for the video signal writing periods and supplies, to the pixel, a setting signal with a predetermined voltage for the setting periods, and each of the setting periods is shorter than a response time required for the transmittance or reflectance of each of the liquid crystal element to change from 0% to 100% or a response time required for the transmittance or reflectance of each of the liquid crystal element to change from 100% to 0%. | 03-10-2011 |
| 20110109815 | VIDEO PROCESSING CIRCUIT AND METHOD, LIQUID CRYSTAL DISPLAY APPARATUS, AND ELECTRONIC APPARATUS - The video processing circuit includes a boundary detection unit that detects a specific boundary, which is a part of a boundary of a first pixel for which an applied voltage designated by the video signal is less than a first voltage, and a second pixel for which the applied voltage is more than a second voltage larger than the first voltage, the specific boundary being determined by tilt azimuth of the liquid crystal, and a replacement unit that replaces an applied voltage to a liquid crystal element corresponding to the first pixel with a predetermined voltage from the applied voltage designated by the input video signal when the applied voltage designated by the video signal is less than a third voltage smaller than the first voltage with respect to the first pixel adjacent to the specific boundary. | 05-12-2011 |
