| Patent application number | Description | Published |
|---|
| 20080205083 | Planar light source, display device, portable terminal device, and ray direction switching element - A planar light source includes a large variable width of an irradiation angle of illumination light, a display device having a large variable width of an angle of field that uses the planar light source, a portable terminal device that uses the display device, and a ray direction switching element that is incorporated in the planar light source. A beam direction regulating element (a louver), which controls a direction of light, and a transparent and scattering switching element, which can switch the transparent state and the scattering state according to ON and OFF of an applied voltage, are provided between a backlight and a liquid crystal panel, whereby it is possible to increase a variable width of an irradiation angle of light in the planar light source and increase a variable width of an angle of field of the liquid crystal display device that uses the planar light source. | 08-28-2008 |
| 20090135336 | Light source, display device, portable terminal device, and ray direction switching element - A planar light source includes a large variable width of an irradiation angle of illumination light, a display device having a large variable width of an angle of field that uses the planar light source, a portable terminal device that uses the display device, and a ray direction switching element that is incorporated in the planar light source. A beam direction regulating element (a louver), which controls a direction of light, and a transparent and scattering switching element, which can switch the transparent state and the scattering state according to ON and OFF of an applied voltage, are provided between a backlight and a liquid crystal panel, whereby it is possible to increase a variable width of an irradiation angle of light in the planar light source and increase a variable width of an angle of field of the liquid crystal display device that uses the planar light source. | 05-28-2009 |
| 20090244086 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, PROGRAM THEREOF, DISPLAY DEVICE, AND IMAGE DISPLAY SYSTEM - An image processing apparatus, an image processing method, and a program thereof, and a display device are provided, in which reproduction of a secret image from one dispersed image is difficult. A secret image and a reverse image included in at least two types of images are in a relationship of forming image data of an image not correlated with the secret image when luminance values of image data respectively are added pixel by pixel. Included are: a memory | 10-01-2009 |
| 20090262127 | IMAGE PROCESSING APPARATUS, DISPLAY APPARATUS, AND IMAGE DISPLAYING SYSTEM - An image processing apparatus, a display apparatus and an image displaying system wherein both secure and public images can be efficiently displayed with high quality without lowering the contrast of the public images. There are included a memory ( | 10-22-2009 |
| 20100013957 | IMAGE PROCESSING APPARATUS, METHOD AND PROGRAM, AND DISPLAY APPARATUS - The invention provides: a code generation and data assignment circuit that sets the order in which a confidential image and a reversed image are displayed, based on an orthogonal code; and a shutter glass control signal generation circuit that controls so that during a period when an image signal of an image including at least part or all of the confidential image is outputted, the shutter glasses disposed between the succeeding display apparatus and the user's eyes are set in a light transmission state and during a period when another image is displayed, the shutter glasses are set in a light shielding state. The image signal of the confidential image and the image signal of the reversed image are in a relationship such that when the brightness values of the images are added together for each pixel, the resultant image has no correlation with the first output image. | 01-21-2010 |
| 20100085373 | IMAGE PROCESSING APPARATUS, METHOD, PROGRAM AND DISPLAY - This invention is to provide an image processing apparatus, an image processing method, a program, and a display in which both of a secret image and a public image can be efficiently displayed with high picture quality without reducing contrast of the public image. One of output images is a secret image which displays an input secret image as one of input images in a partial area of a screen, all the output images including the secret image have a relationship to become, when a luminance value of each pixel thereof is totaled, an input public image as one of the input images; and during a period in which at least the secret image is being outputted, shutter glasses disposed between a display to which the image signals are inputted and user's eyes are set to a light transmission state. | 04-08-2010 |
| 20100182500 | IMAGE DISPLAY DEVICE, IMAGE DISPLAY METHOD AND IMAGE DISPLAY PROGRAM - An image display device is provided with an image memory for storing a first image as a target secret image; a synthesizing section for time-multiplexing the stored first image and a second image obtained by reversely converting the luminance of the first image; and an image display section for displaying the time-multiplexed image. An optical shutter which transmits light at the time of displaying the first image is arranged to the synthesizing section. The image display device is also provided with a display characteristic detecting section which fetches information regarding to the display characteristics of the image display section, and an image converting section which converts the first image into the second image, based on the fetched display characteristics of the image display section. Thus, the image display device effectively shields image display from a third party, even when the display characteristics of the the image display section are changed. | 07-22-2010 |
| 20100201897 | Liquid crystal shutter glasses - A liquid crystal shutter glasses comprises a liquid crystal shutter placed within the view angle of the observer of a display apparatus wherein the liquid crystal shutter has an effective shutter region in which the transmission or shielding of incident light is controllable and a light attenuation region positioned outside the effective shutter region for attenuating incident light. | 08-12-2010 |
| 20100220263 | Light source, display device, portable terminal device, and ray direction switching element - A planar light source includes a backlight that emits light in a planar shape, a ray direction regulating element that regulates a direction of light made incident from the backlight and emits the light, whereby a directivity of the light is improved, and in which a transparent area for transmitting light and an absorption area for absorbing light are formed, and a transparent and scattering switching element that is switchable between a state in which light which is transmitted by the ray direction regulating element and made incident on the switching element is transmitted and a state in which the light is scattered. The transparent areas are formed in a shape of a matrix including a plurality of rows and a plurality of columns, the transparent and absorption areas are formed alternately, and the absorption area is formed so that the transparent areas are separated. | 09-02-2010 |
| 20110007160 | COMMUNICATION SYSTEM, CONTROL DEVICE, AND RECEPTION DEVICE - A control device divides one frame into plural sub-frames, distributes image signals of an embedded image, which is provided to only specific users, to the plural sub-frames such that a sum of signal levels in the one frame is zero, and superimposes the image signals on an image signal of a basic image provided to unspecified people and causes a display device to display the embedded image. The reception device shoots an image displayed on the display device in each period that is the same as the period of the sub-frame and calculates the difference between two image signals obtained in each period that is the same as the period of the sub-frame to acquire and display an image signal of the embedded image. | 01-13-2011 |
| 20110007171 | COMMUNICATION SYSTEM, TRANSMISSION DEVICE AND RECEPTION DEVICE - A transmission device displays a public image (a first image) provided to unspecified users, a private image (a second image) provided to particular users, and a mask image of the private image in a time division multiplexed manner, and transmits a private image sync signal synchronized with display of the private image. A reception device receives the private image sync signal transmitted from the transmission device and shoots by a shooting unit the private image displayed on the transmission device by using the private image sync signal, and displays the shot image on a display unit. | 01-13-2011 |
