| Patent application number | Description | Published |
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| 20100182541 | Backlight Unit and a Liquid Crystal Display Apparatus Applying the Same Therein - A backlight unit, being thin-sized, but having high definition and high uniformity of luminance, and a video display apparatus applying the same therein, has a plural number of sets of at least one or more of light source(s) ( | 07-22-2010 |
| 20100214508 | Backlight Unit and Liquid Crystal Display Device Using the Same - A backlight unit having a LED light source includes a light guide plate partitioned in areas each having a tapered shape formed of a thick portion and a thin portion. The light guide plate is formed such that a thick portion and a thin portion are repeated at certain intervals, and the repeated thick portions and the repeated thin portions gradually decrease in thickness. The LED light source is attached to a lateral side of each thick portion. Grooves are formed in the light irradiation direction of the LED light source and in a direction perpendicularly intersecting the light irradiation direction. Each of the grooves is formed in an concave shape (V-shape or trapezoid-shape). There is a relation 0.2/30<=W/D<0.1 where D denotes the distance between the light guide plate and a light diffusion plate, and W denotes the width of each of the grooves. An inclination angle θ relative to the center of each of the grooves is between 9 and 15 degrees inclusive. | 08-26-2010 |
| 20100220246 | BACKLIGHT DEVICE AND VIDEO DISPLAY APPARATUS USING THE SAME - In a backlight device manufactured by simultaneously arranging a plurality of backlight blocks in a combination manner, while each of the backlight blocks is comprised of: a light emitting source containing an LED, or a fluorescent lamp; a light conducting plate for conducting light emitted from the light emitting source to the side of a liquid crystal panel; and a reflection seat arranged on a rear plane of the light conducting plate; a dark luminance portion and a middle dark/bright luminance portion corresponding to dark/bright difference patterns for producing a dark/bright difference in luminance emitted from the backlight blocks are formed; and luminance of a bright luminance portion corresponding to a bright pattern of luminance emitted from a boundary between the backlight blocks is caused not to become visually conspicuous by a luminance fluctuation of the dark/bright difference pattern emitted from the backlight blocks. | 09-02-2010 |
| 20110001427 | PLASMA DISPLAY PANEL AND METHOD OF MANUFACTURING THE SAME, AND DISCHARGE STABILIZER POWDER - A technique for achieving both discharge voltage reduction and discharge stabilization in a PDP and the like is provided. This PDP manufacturing method includes, for a structure of a front plate structure ( | 01-06-2011 |
| 20110018786 | PLASMA DISPLAY PANEL AND PLASMA DISPLAY DEVICE - There is provided a technique for discharge stabilization of a plasma display panel by forming magnesium oxide with a large diameter and adjusting residual amounts of impurities contained in the magnesium oxide. That is, discharge stabilization material particle, which is coated on a protective-film layer of protecting electrodes and supplies sufficient amount of priming particles into a discharge gap, is focused. By setting each impurity concentration in the magnesium oxide used as the discharge stabilization material particle to 20 ppm or lower, discharge time lag is suppressed. | 01-27-2011 |
| 20110080532 | BACKLIGHT UNIT AND VIDEO DISPLAY APPARATUS APPLYING THE SAME THEREIN - A backlight unit of thin-type comprises: at least one or more light source(s); plural numbers of light guide plates, each of which is configured to guide and irradiate the light of the light source(s) to a side of a liquid crystal panel; and a chassis, on which the light source(s) and the light guide plates are fixed, thereby being constructed by aligning the light guide plates, wherein the following conditions are satisfied: | 04-07-2011 |
| Patent application number | Description | Published |
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| 20090040211 | Method for driving plasma display panel - A method for driving an AC type plasma display panel includes the steps of performing initialization at least once for each frame so as to clear binary setting of wall charge quantity in a screen by discharge except for micro discharge in which electrodes covered with a plurality of fluorescent materials become cathodes, and performing special initialization at frequency of once for M frames, where M=two or more, so as to erase unnecessary wall charge in the screen by discharge in which electrodes become cathodes and that is stronger than the discharge in the initialization. | 02-12-2009 |
| 20090046086 | Method for driving plasma display panel - A method for driving an AC type plasma display panel includes the steps of performing initialization at least once for each frame so as to clear binary setting of wall charge quantity in a screen by discharge except for micro discharge in which electrodes covered with a plurality of fluorescent materials become cathodes, and performing special initialization at frequency of once for M frames, where M=two or more, so as to erase unnecessary wall charge in the screen by discharge in which electrodes become cathodes and that is stronger than the discharge in the initialization. | 02-19-2009 |
| 20090096374 | Plasma Display Panel - A plasma display panel, having a discharge space between a first and a second substrates, includes a plurality of scan electrodes, each disposed along a display line, which can be driven individually and a plurality of address electrodes disposed to intersect with the above scan electrodes, and pixel areas at the intersecting positions of the scan electrodes and the address electrodes Further, the plasma display panel includes a sustain electrode for producing sustain discharge with the scan electrodes, and the sustain electrode is formed to have a grid shape. Each pixel area is surrounded with the grid shape. | 04-16-2009 |
| 20100141560 | Plasma Display Panel - A plasma display device performing display control by utilizing plasma discharge includes a panel having a plurality of address electrodes and a plurality of display electrodes disposed to intersect with the address electrodes, and a drive circuit performing address discharge drive for selectively producing a discharge in cells between the address electrodes and the display electrodes, and display discharge drive for applying to the display electrode a display drive pulse having a voltage increasing with such a gradient as to continuously produce a discharge current in the selected cell. In the display discharge drive performed after the address discharge drive, a display drive pulse with an increasing voltage of gentle gradient is applied to the display electrode, thereby producing faint discharges continuously in the selected cell during the increase of the voltage applied to the display electrode. Display luminance is controlled by the above ramp-wave discharge. In such the ramp-wave discharge, differently from the conventional strong discharge, faint discharges are produced a plurality of times while the display drive pulse is being applied, enabling improvement on the discharge efficiency, and reduction of power consumption. | 06-10-2010 |
