Patent application number | Description | Published |
20110157262 | POWER CONTROL METHOD OF LIGHT EMITTING DEVICE FOR IMAGE DISPLAY, LIGHT EMITTING DEVICE FOR IMAGE DISPLAY, DISPLAY DEVICE AND TELEVISION RECEIVER - In a method of controlling power of a light emitting device for image display that irradiates illumination light from divided regions, light emission brightness data of each light emitting element of the light emitting device is determined based on image data for image display (S | 06-30-2011 |
20110199401 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device | 08-18-2011 |
20110205258 | BACKLIGHT UNIT, LIQUID CRYSTAL DISPLAY DEVICE, LUMINANCE CONTROL METHOD, LUMINANCE CONTROL PROGRAM, AND RECORDING MEDIUM - An LED controller ( | 08-25-2011 |
20110267384 | ILLUMINATION DEVICE, DISPLAY DEVICE, DATA GENERATION METHOD, DATA GENERATION PROGRAM, AND RECORDING MEDIUM - Under control of a main microcomputer, an LED controller generates two frame-type LED control signals corresponding to two frame image signals arranged in time series in accordance with a panel processing color video signal. Furthermore, the LED controller generates from two frame-type LED control signals, a frame-type LED signal corresponding to an interpolation frame image signal temporally between the two frame image signals. | 11-03-2011 |
20110273488 | ILLUMINATION DEVICE, DISPLAY DEVICE, DATA GENERATION METHOD, DATA GENERATION PROGRAM AND RECORDING MEDIUM - Under management by a main microcomputer, an LED controller performs, along at least two directions within a plane of planar light formed by LEDs arranged in a matrix, brightness correction processing for adjusting the distribution of brightness of the planar light on light source color video signals to convert them into light source color video signals. | 11-10-2011 |
20120001964 | LIQUID CRYSTAL DISPLAY APPARATUS - In the present liquid crystal display device ( | 01-05-2012 |
20120086628 | LIQUID CRYSTAL DISPLAY DEVICE AND LIGHT SOURCE CONTROL METHOD - Disclosed is a liquid crystal display device including: a liquid crystal display panel; a backlight unit incorporating a PWM dimming type light source; and a control unit that controls the liquid crystal display panel and the backlight unit. The control unit obtains response speed data of orientation change of liquid crystal molecules, and changes a duty factor of a PWM dimming signal according to the response speed data. In a case where the response speed of the liquid crystal molecules is relatively high, LEDs are driven with a relatively small duty factor. In a case where the response speed of the liquid crystal molecules is relatively low, the LEDs are driven with a relatively large duty factor, and black insertion is not performed. The liquid crystal display device prevents an image quality malfunction that is apt to occur depending on the degrees of inclination of the liquid crystal molecules. | 04-12-2012 |
20120086684 | Liquid Crystal Display Device And Light Source Control Method - Disclosed is a liquid crystal display device including: a VA-IPS mode liquid crystal display panel; a backlight unit incorporating a PWM dimming type light source; and a control unit that controls the liquid crystal display panel and the backlight unit, in which the control unit obtains response speed data of orientation change of liquid crystal molecules, and changes a duty factor of a PWM dimming signal according to the response speed data. In a case where the response speed of the liquid crystal molecules is relatively high, LEDs are driven with a relatively small duty factor. In a case where the response speed of the liquid crystal molecules is relatively low, the LEDs are driven with a relatively large duty factor, and black insertion is not performed. The liquid crystal display device prevents an image quality malfunction (multiple outlines). | 04-12-2012 |
20120086740 | Liquid Crystal Display Device And Light Source Control Method - In at least one example embodiment, the present invention includes a liquid crystal display panel for displaying an image by virtue of having liquid crystals whose orientation changes in response to application of a voltage; a backlight unit with a built-in PWM light modulation type LED for emitting light to be supplied to the liquid crystal display panel; and a control unit for controlling the liquid crystal display panel and the backlight unit. In cases where the response speed of liquid crystal molecules is relatively high, the LED is driven at a relatively low drive frequency, whereas in cases where the response speed of the liquid crystal molecules is relatively low, the LED is driven at a relatively high drive frequency. According to the present invention, problems with image quality that tend to occur depending on the degree of tilting of the liquid crystal molecules (ghost outlines) are prevented. | 04-12-2012 |
20120098876 | Liquid Crystal Display Device And Light Source Control Method - A method is disclosed for controlling a light source installed in a liquid crystal display device. An embodiment includes a liquid crystal display panel for displaying an image by virtue of having liquid crystals whose orientation changes in response to application of a voltage; a backlight unit with a built-in PWM light modulation type LED for emitting light to be supplied to the liquid crystal display panel; and a control unit for controlling the liquid crystal display panel and the backlight unit. When the response speed of liquid crystal molecules is relatively high, the LED is driven at a relatively low drive frequency, and when the response speed of the liquid crystal molecules is relatively low, the LED is driven at a relatively high drive frequency. | 04-26-2012 |
20120139445 | ILLUMINATING APPARATUS AND DISPLAY APPARATUS - Provided is a backlight unit ( | 06-07-2012 |
20120139823 | DRIVER DEVICE, BACKLIGHT UNIT AND IMAGE DISPLAY DEVICE - A backlight unit according to the present invention includes a plurality of LED drivers ( | 06-07-2012 |
20120147066 | DRIVER DEVICE, BACKLIGHT UNIT, AND IMAGE DISPLAY APPARATUS - Disclosed is a backlight unit ( | 06-14-2012 |
20120147067 | IMAGE DISPLAY DEVICE AND IMAGE DISPLAY METHOD - In an image display device of at least one embodiment, a regional maximum detection section detects an areal maximum pixel luminance (regional maximum) on the basis of an input image. A regional mean calculation section calculates an areal mean pixel luminance (regional mean) on the basis of the input image. A data comparison section compares a control determination threshold retained in a control determination threshold storage section with the regional maximum for each area, and outputs a comparison result for that area. An LED output value calculation section sets a value corresponding to the regional maximum as an LED output value for each area with the regional maximum greater than the control determination threshold, and sets a value corresponding to the regional mean as an LED output value for each area with the regional maximum less than or equal to the control determination threshold. | 06-14-2012 |
20120154459 | IMAGE DISPLAY DEVICE AND IMAGE DISPLAY METHOD - In an image display device which performs area-active drive, backlight sources are emitted with appropriate luminances while inhibiting increase in power consumption and inhibiting reduction of image quality. An emission luminance calculation section divides an input image into a plurality of areas, and obtains luminances upon emission (first emission luminances) of LEDs in the areas. A plurality of correction modes are prepared as methods for correcting the first emission luminances, and a correction mode that is applied to an emission luminance correction process (selected correction mode) is stored to a correction mode storage section. For any LED units whose flag data stored in a correction-enabled map has the value of 1, an emission luminance correction section corrects their first emission luminances to obtain second emission luminances in accordance with the selected correction mode, with reference to correction value data stored in correction value tables. | 06-21-2012 |
20120299891 | LIGHT EMITTING DEVICE FOR IMAGE DISPLAY, AND IMAGE DISPLAY DEVICE - The light emitting device is divided into a plurality of areas, and has, as main configuration elements, an area drive circuit ( | 11-29-2012 |
20120299979 | LIGHT EMITTING DEVICE FOR IMAGE DISPLAY, IMAGE DISPLAY APPARATUS, AND LED DRIVER - Specifically provided is a light emitting device for image display, wherein each of light emitting elements, a PWM control unit which PWM-controls a current to be supplied to the light emitting element, a control condition setting unit which, according to the APL of image data, determines and updatably sets the PWM limiting condition for limiting the PWM value that is the duty ratio of the PWM control, and the reference current value that is the value of the current flowing to the light emitting element in response to turn-on of the PWM control, and a PWM value calculation unit which on the basis of the image data, the PWM limit condition, and the reference current value, calculates the PWM value of each area, and the PWM control unit performs the PWM control on the basis of the reference current value and the calculated PWM value. | 11-29-2012 |
20120306942 | ILLUMINATION DEVICE, DISPLAY DEVICE, DATA GENERATION METHOD, DATA GENERATION PROGRAM AND RECORDING MEDIUM - A micon unit ( | 12-06-2012 |
20120320105 | IMAGE DISPLAY DEVICE AND IMAGE DISPLAY METHOD - In the present liquid crystal display device, an LED output value correction section ( | 12-20-2012 |
20120320107 | DISPLAY DEVICE - Disclosed is a liquid crystal display device ( | 12-20-2012 |
20130038810 | BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY DEVICE - A backlight unit includes excellent heat radiation characteristics. The backlight unit of an embodiment of the present invention includes a chassis and a light source attached to the chassis. As the light source, an LED is preferably used. The chassis includes an aluminum base or aluminum layer, and a porous alumina layer or pore-sealed porous alumina layer provided on the surface of the aluminum base or aluminum layer. | 02-14-2013 |
20130120481 | IMAGE DISPLAY APPARATUS, DRIVER APPARATUS, AND BACKLIGHT UNIT - An image display apparatus comprising: a driver apparatus; and a total of N device groups of a first group to an N-th group (2≦N) each of which includes one or a plurality of light emitting devices, the image display apparatus uses the driver apparatus to make each of the device groups emit light preventing light emission capable periods from overlapping one another and displays an image by using the obtained light as backlight; wherein the driver apparatus includes: a power output circuit that outputs light emission power used for the light emission of the light emitting device; and a switch mechanism that switches, in accordance with arrival of the light emission capable period of a device group K (1≦K≦N), an output destination of the light emission power output from the power output circuit to the device group K. | 05-16-2013 |
20130271661 | DISPLAY DEVICE, TELEVISION RECEIVER, CONTROL METHOD FOR DISPLAY DEVICE - A display device includes a display portion having an aspect ratio of (16+a):9 on an assumption that a is a positive number and the aspect ratio represents a ratio of horizontal size:vertical size. The display device presents full display of a first image having the aspect ratio of 16:9 such that a vertical size of the first image is substantially equal to a vertical size of the display portion, while displaying a second image to be not overlapped with the first image. Convenience for users can be thereby increased. | 10-17-2013 |
20130285966 | DISPLAY APPARATUS - A display apparatus ( | 10-31-2013 |
20130286287 | DISPLAY DEVICE AND TELEVISION RECEIVER - The present display device is a display device in which a display unit is provided with a first area (MAR) that displays a first picture and a second area (SAR) that displays a second picture, and is equipped with a first illumination unit that illuminates the first area with light and a second illumination unit that illuminates the second area with light, wherein power supply to the first illumination unit and power supply to the second illumination unit are controlled separately. Thus, it is possible to reduce power consumption. | 10-31-2013 |
20130314458 | MULTI-DISPLAY DEVICE AND IMAGE DISPLAY DEVICE - In order to display an image with a high contrast ratio while suppressing power consumed by a multi-display device and to adjust brightness of images displayed on image display devices, the multi-display device includes light emission APL value adjusting means 102. The light emission APL value adjusting means 102 sends, to light emission control means, a light emission APL value that has been adjusted, on the basis of light emission APL values calculated by light emission APL value calculating means of image display devices 11 to 19, so that total light emission power value of image-display light-emitting means 6 does not exceed an allowable power value and images are displayed at predetermined brightness. | 11-28-2013 |