Patent application number | Description | Published |
20110234777 | THREE-DEMENSIONAL DISPLAY APPARATUS AND THREE-DIMENSIONAL DISPLAY SYSTEM - A stereoscopic display apparatus and a stereoscopic display system capable of reducing flicker due to the influence of a fluorescent lamp while preventing an increase in crosstalk. The stereoscopic display apparatus includes a display controller that causes a display section to display left-eye video and right-eye video based on an input left-eye video signal and right-eye video signal and a shutter control section that controls an open/closed state of left and right shutters of stereoscopic image observation glasses in an opening/closing cycle in accordance with a display cycle of the left-eye video and the right-eye video, wherein the shutter control section controls a duty ratio of an Open period of each of the left and right shutters to a greater value than 50% and the display controller causes the display section to display video on a side whose shutter is in the open state of the left-eye video and the right-eye video only while the shutter control section exercises control so that one of the left and right shutters is in the closed state. | 09-29-2011 |
20110304657 | BACKLIGHT DEVICE AND DISPLAY DEVICE - Disclosed is a backlight device that reduces elevated black levels and the visibility of flickering when displaying a video. A light-emitting unit ( | 12-15-2011 |
20110304709 | VIDEO DISPLAY APPARATUS AND VIDEO VIEWING SYSTEM - A liquid crystal drive unit performs overdrive processing such that when driving a liquid crystal panel so as to increase a brightness toward a target brightness determined by a left-eye video signal or a right-eye video signal, the liquid crystal drive unit drives the liquid crystal panel in accordance with a drive amount corresponding to a brightness of not less than the target brightness and, when driving the liquid crystal panel so as to reduce the brightness toward the target brightness, the liquid crystal drive unit drives the liquid crystal panel in accordance with a drive amount corresponding to a brightness of not more than the target brightness. In the overdrive processing, the drive amount corresponding to the same target brightness differs depending on a scanning position on a display screen of the liquid crystal panel. | 12-15-2011 |
20110304712 | STEREOSCOPIC DISPLAY SYSTEM, STEREOSCOPIC DISPLAY DEVICE AND GLASSES FOR STEREOSCOPIC VIDEO IMAGE OBSERVATION - Provided are a stereoscopic display device and stereoscopic display system, and a stereoscopic display device and glasses for stereoscopic video image observation, which are capable of reducing flicker attributable to the influence of a fluorescent lamp while preventing increase in crosstalk. Specifically, provided is a stereoscopic display system provided with: a stereoscopic display device which displays left-eye video images and right-eye video images alternatively in terms of time, the left-eye video images and right-eye video images being based on inputted left-eye video signals and right-eye video signals; and glasses for stereoscopic observation which comprise left-eye shutter and right-eye shutter configured to adjust quantities of light passing through the glasses toward the respective left and right eyes, and with which the left-eye video images and right-eye video images are observed. The stereoscopic display system is further provided with: an ambient light detecting unit which detects ambient light surrounding the system; and a shutter controlling unit which, so that changes in quantities of ambient light entering the respective left and right shutters can be reduced, controls quantities of light passing through the respective left and right shutters. | 12-15-2011 |
20110316902 | BACKLIGHT DEVICE AND DISPLAY APPARATUS - Provided is a backlight device, wherein when both the drive duty and the drive current are controlled in each of separated areas, the image quality is improved by preventing the change of luminance even when there is a difference between the adjustment resolutions of both the drive duty and the drive current. A light-emitting unit ( | 12-29-2011 |
20120007844 | BACKLIGHT DEVICE AND DISPLAY APPARATUS - Provided is a backlight device, wherein when the drive duty and drive current are controlled in each of predetermined light-emitting areas of a light-emitting unit, the color unevenness and moving image resolution difference between image display areas corresponding thereto are improved. A light-emitting unit ( | 01-12-2012 |
20120007965 | CONTROLLER, DISPLAY DEVICE, EYEGLASS DEVICE AND VIDEO SYSTEM - A controller for controlling an eyeglass device which performs an assistance operation for assisting in stereoscopically viewing a video includes: a first acquisition portion for acquiring first frequency information relating to a display frequency of frame images of the video; a second acquisition portion for acquiring second frequency information relating to an environmental factor which periodically varies in an environment where the video is viewed; and a generator for generating a reference signal to adapt the assistance operation of the eyeglass device to display of the frame image and periodic variation of the environmental factor on the basis of the first frequency information and the second frequency information. | 01-12-2012 |
20120013652 | BACKLIGHT DEVICE AND DISPLAY APPARATUS - Provided is a backlight device wherein when the drive duty and the drive current are controlled according to a motion, the image quality is improved by preventing flicker caused by the change of the drive waveform. A light-emitting unit ( | 01-19-2012 |
20120025716 | BACKLIGHT DEVICE AND DISPLAY DEVICE - Disclosed is a backlight device that suppresses the increase of maximum power consumption. A light-emitting unit ( | 02-02-2012 |
20120081624 | DISPLAY APPARATUS AND IMAGE VIEWING SYSTEM - The present invention provides display apparatus including: liquid crystal panel for displaying left and right images; liquid crystal driver for writing image signal into liquid crystal panel; backlight source for radiating light to liquid crystal panel; and controller for controlling backlight source so that it emit the light during first emission periods which are set for left viewing period while left image is viewed with left and right viewing periods while right image is viewed with right eye, respectively, wherein controller controls backlight source so that it emits the light during second emission period within non-viewing period, during which none image is viewed, and sets turn-off period during which backlight source is turned off between first and second emission periods. | 04-05-2012 |
20120120209 | DISPLAY DEVICE AND VIDEO VIEWING SYSTEM - A display device includes a liquid crystal panel which switches between a left frame image which is viewed by a left eye and a right frame image which is viewed by a right eye to alternately display the left and right frame images on a display surface with time; and a liquid crystal driver which scans and drives the liquid crystal panel with a frame image signal for displaying the left or right frame image over the display surface. The liquid crystal driver executes a first scanning operation over the display surface and a second scanning operation over the display surface after the first scanning operation, and the first scanning operation is executed in a shorter period than the second scanning operation. | 05-17-2012 |
20120162219 | DISPLAY DEVICE AND VIDEO VIEWING SYSTEM - A display device includes: a liquid crystal panel including a display surface on which frame images are displayed; a conversion portion for converting a frame image signal into a first image signal representing an image having a lower resolution and a second image signal representing an image having a higher resolution; and a liquid crystal driver for driving the liquid crystal panel with performing first and second scanning operations of the first and second image signals over pixels of the entire display surface. The liquid crystal driver performs the second scanning operation with targeting a drive luminance value which is set in response to an expected value of an achieved luminance value during the first scanning operation for the pixel of the display surface before the second scanning operation commences, and target luminance value for the pixels defined by the frame image signal. | 06-28-2012 |
20120188294 | Backlight Device - A backlight device, used in a liquid crystal display device, comprising: a substrate including first and second areas; a plurality of first light emitting diodes (LEDs) arranged in the first area at a density equal to or higher than a predetermined density; a plurality of second LEDs arranged in the second area at a density lower than the predetermined density; and a control unit configured to control current supplied to the first LEDs with respect to the temperature of the first area, and current supplied to the second LEDs with respect to the temperature of the second area so as to make the rate of change in effective value of the current supplied to the first LEDs different from the rate of change in effective value of the current supplied to the second LEDs when temperatures of the first and second areas are higher than a predetermined temperature. | 07-26-2012 |
20120188348 | VIDEO DISPLAY DEVICE AND VIDEO VIEW SYSTEM - A video display device and a video view system with which occurrence of crosstalk can be avoided in stereoscopic video images. The device has a liquid crystal panel on which the video image for the left eye corresponding to the video signal for the left eye and the video image for the right eye corresponding to the video signal for the right eye are displayed, and a driving unit which drives the liquid crystal panel by executing at least two times of write-scanning respectively according to the driving amount based on the respective video signal for the left or right eye, wherein in each write-scanning, the driving unit performs an overdrive operation in which the liquid crystal panel is driven according to a driving amount based on a target luminance. | 07-26-2012 |
20120229494 | DISPLAY DEVICE AND METHOD OF CONTROLLING DISPLAY - A display device including: a liquid crystal panel having liquid crystals driven to display a frame image; a generator which generates image data to display the frame image in response to a frame image signal corresponding to the frame image; a driver which writes the image data to the liquid crystal panel to drive the liquid crystals; and a detector for detecting a temperature of the driver, wherein the generator adjusts how many times the image data are written to the liquid crystal panel by the driver in response to the temperature of the driver. | 09-13-2012 |
20120299985 | Luminous Intensity Distribution System and Stereoscopic Image Display Device - A luminous intensity distribution system includes a first optical element extending in a first direction, and distributes, given that a first direction is taken to be leftward-rightward when viewed frontward-rearward, light having entered a light-incident surface from a right-rear direction and emits the light through a light-emitting surface toward a right-forward direction when viewed from the frontward end, and distributes light having entered the light-incident surface from a left-rear direction and emits the light through the light-emitting surface toward a left-forward direction when viewed from the frontward end; and a second optical element extending in the first direction and that diffuses light having entered the light-incident surface and emits the light through the light-emitting side, with the first optical element and the second optical element being arranged in parallel with each other vertically when viewed frontward-rearward. | 11-29-2012 |
20130135297 | DISPLAY DEVICE - The present application discloses a video display device. The display device includes: a display surface with pixels. Each pixel has an opened sub-pixel including an opened filter having a color filter with an opening, an unopened sub-pixel having a color filter without an opening, and a liquid crystal driven in response to luminance for each of the opened and unopened sub-pixels; an input portion to which a video signal is input to define the video on the display surface; a signal generator for generating a luminance signal to define the luminance of the opened sub-pixel in response to the video signal; a detector for detecting a degree of change corresponding to a change between video frame images in response to the video signal; and an adjuster for adjusting the luminance of the opened sub-pixel defined by the video signal in response to the degree of change. | 05-30-2013 |
20130155040 | LIQUID CRYSTAL DISPLAY PANEL AND LIQUID CRYSTAL DISPLAY DEVICE - The liquid crystal display panel includes a liquid crystal display unit, and a backlight unit illuminating the liquid crystal display unit. The backlight unit includes first and second white light-emitting diodes that respectively emit white light, and first and second drive units that respectively supply a current to the first and second white light-emitting diodes. The first and second drive units are respectively configured to be able to adjust supply current to the first and second white light-emitting diodes. Chromaticities of the first and second white light-emitting diodes are of a relationship of being positioned opposite each other across a blackbody locus on an xy chromaticity diagram. The first and second white light-emitting diodes change over time so that, on the xy chromaticity diagram, an intersection point of the blackbody locus and a line that passes through the chromaticities of the first and second white light-emitting diodes becomes constant. | 06-20-2013 |
20130162697 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device includes: a liquid crystal display unit including pixels and displaying an image based on an input image signal; a drive unit that applies a voltage based on the input image signal to the pixels while inverting a polarity of the voltage for each of frames; a luminance determination unit that determines whether a detected average luminance has changed, between the frames, by an amount equal to or more than a reference luminance; and a signal generation unit that generates a phase inversion enabling signal for inverting a phase of the polarity of the voltage applied to the pixels, in a case where the luminance determination unit determines that the average luminance has changed by the above amount, wherein the drive unit inverts the phase of the polarity of the voltage applied to the pixels when the phase inversion enabling signal is generated. | 06-27-2013 |
20130169615 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device includes: a liquid crystal display unit that displays, for each of frames, an image based on an input image signal; a drive unit that applies a voltage based on the input image signal to pixels of the liquid crystal display unit; and a control unit that controls an amplitude of the voltage applied to the pixels. The drive unit applies, in one of the frames, a voltage of the same polarity to the pixels connected to one of the source signal lines. The control unit includes: a temperature-information acquiring unit that acquires temperature information of the drive unit; and a filter unit that acquires high-frequency and low-frequency components of the input image signal in a substantial extending direction of the source signal lines. The control unit controls the amplitude of the applied voltage using the temperature information and an output value of the high-frequency component. | 07-04-2013 |
20130169618 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device includes: a liquid crystal display unit that includes pixels and displays an image based on an input image signal input for each of frames; a drive unit that applies a voltage based on the input image signal to the pixels of the liquid crystal display unit while inverting a polarity of the voltage for each of the frames; a signal discrimination unit that discriminates whether the input image signal is an interlaced signal; and a signal generation unit that generates a phase inversion enabling signal for inverting a phase of the polarity of the voltage applied to the pixels, in a case where the signal discrimination unit discriminates that the input image signal is the interlaced signal. The drive unit inverts the phase of the polarity of the voltage applied to the pixels when the signal generation unit generates the phase inversion enabling signal. | 07-04-2013 |
20130169705 | LIQUID CRYSTAL DISPLAY DEVICE - The present application discloses a liquid crystal display device for displaying a video on a display surface with pixels arranged in a matrix. Each of the pixels has three sub-pixels formed with different color filter portions in hue. The display surface includes pixel sets. Each of the pixel sets is defined to include two or three of the pixels next to each other in at least one of the vertical and horizontal directions. An opening is formed on one of the color filter portions every hue in each of the pixel sets. | 07-04-2013 |
20130286167 | DISPLAY DEVICE AND VIDEO VIEWING SYSTEM - A display device includes: a liquid crystal panel which has a display surface including pixels, and displays frame images; a generation portion which generates a first and a second image signals based on a frame image signal, the first image signal rendering an image of a lower resolution than the frame image signal and including data to be written to all the pixels, the second image signal including data to be written to a part of the pixels and not including data to be written to remaining pixels other than the part of the pixels; and a liquid crystal driver which executes, after executing a first scanning operation, a second scanning operation in which scanning based on the second image signal is executed, to drive the liquid crystal panel, wherein data that has been written to the remaining pixels is held in the second scanning operation. | 10-31-2013 |