| NORITAKE ITRON CORPORATION Patent applications |
| Patent application number | Title | Published |
|---|
| 20120112625 | Vacuum flourescent display apparatus - To provide a vacuum fluorescent display apparatus that can be expected to enhance lifespan characteristics of a red phosphor that does not contain Cd when driven in a voltage range of 30V or above. | 05-10-2012 |
| 20110279425 | Vacuum fluorescent display with driver IC - The distance between filamentary cathodes and a phosphor on an anode substrate can be reduced by shortening the distance between the filamentary cathodes and a grid. To obtain high luminance without loss of display quality, the present invention provides a vacuum fluorescent display ( | 11-17-2011 |
| 20110215708 | Phosphor for low-voltage electron beam and vaccum fluorescent display apparatus - In order to provide a phosphor for a low-voltage electron beam and a vacuum fluorescent display apparatus in which the phosphor is used, a deposition layer is formed on a surface of a main body of a phosphor shown by the following chemical formula (1), the deposition layer being a plurality of oxide layers sequentially deposited on the surface of the phosphor main body. The phosphor for a low-voltage electron beam contains no cadmium, but has exceptional high-temperature exposure characteristics, as well as prolonged service life and higher brightness. | 09-08-2011 |
| 20100194788 | Driving method for vacuum fluorescent display, and vacuum fluorescent display - Luminance life can be enhanced in a vacuum fluorescent display that is driven according to a dynamic drive scheme and that uses a phosphor having remarkable luminance saturation. A drive method for a vacuum fluorescent display, having causing a phosphor layer formed on an anode to display under low-energy electron excitation by the dynamic driving, wherein the phosphor included in the phosphor layer is a phosphor in which the luminance increases when a pulse width is reduced under conditions in which the Du is kept the same in the dynamic driving, and in which, after a voltage is applied to the anode and the luminance of the phosphor is saturated, the time at which the luminance value decreases to 10% of the saturation luminance value following stoppage of the voltage application is 200 μsec or more; and wherein the pulse width and pulse repetition period in the dynamic driving are made variable in the direction of maintaining the initial luminance of the phosphor as driving time elapses. | 08-05-2010 |
| 20100128066 | IMAGE DISPLAY METHOD AND APPARATUS - It is provided at a reasonable cost an image display method and image display apparatus having a small-sized display drive control circuits even in the case of many intensity levels. | 05-27-2010 |
