Patent application number | Description | Published |
20120099084 | LIGHT SOURCE CONTROL DEVICE, PROJECTOR, AND LIGHT SOURCE CONTROL METHOD - A light source control device and a light source control method each capable of preventing the scroll noise from occurring without being affected by the characteristics of a light modulation device, and a projector equipped with the light source control device are provided. The light source device includes a duty determination section adapted to determine a duty ratio, and a drive control section adapted to perform drive control of a plurality of solid-state light sources by generating a PWM signal having the duty ratio determined by the duty ratio determination section, and adapted to make a phase with which at least one of the solid-state light sources is driven different from a phase with which another of the solid-state light sources is driven. | 04-26-2012 |
20120134020 | IMAGE DISPLAY APPARATUS, IMAGE DISPLAY SYSTEM, AND IMAGE DISPLAY METHOD - An image display apparatus includes a light source controlled to be turned on and off, a spatial light modulator that modulates light from the light source, and a controller that alternately switches an image to be displayed between an image for the left eye and an image for the right eye and turns on the light source so that the image for the left eye or the image for the right eye is displayed. When the image for the left eye is displayed, the controller starts opens a shutter for the left eye in eyeglasses before turning on the light source, whereas when the image for the right eye is displayed, the controller starts opening a shutter for the right eye in the eyeglasses before turning on the light source. | 05-31-2012 |
20120200556 | ELECTROOPTIC DEVICE, METHOD FOR CONTROLLING ELECTROOPTIC DEVICE, AND ELECTRONIC APPARATUS - In writing performed at a start pulse DY | 08-09-2012 |
Patent application number | Description | Published |
20130069928 | LIQUID CRYSTAL DISPLAY DEVICE, DRIVING METHOD FOR THE LIQUID CRYSTAL DISPLAY DEVICE, AND ELECTRONIC APPARATUS - A liquid crystal display device according to the invention has an effect that burn-in and a flicker do not occur. Dummy pixels are provided around pixels of the liquid crystal display device. A first voltage higher in order than a reference voltage and a second voltage lower in order than the first voltage are applied to a pixel electrode of a liquid crystal device included in the dummy pixel while being temporally shifted. The liquid crystal display device changes, on the basis of an electric current flowing to a second opposed electrode when the first voltage is applied and an electric current flowing to the second opposed electrode when the second voltage is applied, a ratio of effective voltages of a positive voltage and a negative voltage applied to a liquid crystal device included in the pixel that displays an image. | 03-21-2013 |
20130169703 | DRIVER UNIT FOR ELECTRO-OPTICAL DEVICE, ELECTRO-OPTICAL DEVICE, ELECTRONIC EQUIPMENT, AND METHOD FOR DRIVING ELECTRO-OPTICAL DEVICE - A liquid crystal display device is configured so that one frame is divided into two fields and a pixel of a liquid crystal panel is driven. The liquid crystal display device performs overdrive when a gray-scale level to be supplied to the pixel is different between a previous frame and a current frame. The liquid crystal display writes a voltage corresponding to the gray-scale level of the pixel with a positive voltage in a first field, and writes a voltage corresponding to the gray-scale level to be supplied to the pixel with a negative voltage in a second field. When performing overdrive, the liquid crystal display device performs overdrive in both of the first field and the second field. Also, when performing overdrive, the liquid crystal display device corrects the gray-scale level to be supplied to the pixel. | 07-04-2013 |
20150123959 | LIQUID CRYSTAL DISPLAY DEVICE, METHOD FOR DRIVING LIQUID CRYSTAL DISPLAY DEVICE, AND ELECTRONIC APPARATUS - A liquid crystal display device supplies an active scan signal to each scan line while skipping a portion of a plurality of the scan lines, per one horizontal scan period, in a direction of the m-th to the first scan lines, by a first scan line drive circuit, and supplies the active scan signal to each scan line while skipping the portion of the plurality of the scan lines, per one horizontal scan period, in a direction of the m+1-th to the 2m-th scan lines, by a second scan line drive circuit. Therefore, the liquid crystal display device synchronizes with a timing of supplying the active signal with the first scan line drive circuit and the second scan line drive circuit, and supplies a data signal whose polarity is inverted to a positive polarity potential and a negative polarity potential per one horizontal scan period, to a data line. | 05-07-2015 |