Invention Grant
- Patent Title: Driving method for vacuum fluorescent display, and vacuum fluorescent display
- Patent Title (中): 真空荧光显示的驱动方法,真空荧光显示
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Application No.: US12657843Application Date: 2010-01-26
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Publication No.: US08378929B2Publication Date: 2013-02-19
- Inventor: Shigeki Kikuta , Kenji Nakanishi , Noboru Murata , Motohisa Isaka
- Applicant: Shigeki Kikuta , Kenji Nakanishi , Noboru Murata , Motohisa Isaka
- Applicant Address: JP Mie JP Aichi
- Assignee: Noritake Itron Corporation,Noritake Co., Limited
- Current Assignee: Noritake Itron Corporation,Noritake Co., Limited
- Current Assignee Address: JP Mie JP Aichi
- Agency: Hedman & Costigan, P.C.
- Agent James V. Costigan
- Priority: JPP2009-020275 20090130; JPP2009-023293 20090204
- Main IPC: G09G3/22
- IPC: G09G3/22

Abstract:
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.
Public/Granted literature
- US20100194788A1 Driving method for vacuum fluorescent display, and vacuum fluorescent display Public/Granted day:2010-08-05
Information query
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