Monitoring device and method for a multiplexed segmental display
Intrusion sensor using optic fiber Patent #: 4367460
ApplicationNo. 06/816801 filed on 01/07/1986
US Classes:315/169.4, Gas display panel device313/583, Having electric terminal detail315/169.1, Diverse-type energizing or bias supplies to different electrodes345/212Regulating means
ExaminersPrimary: Dixon, Harold A.
Attorney, Agent or Firm
International ClassesG09G 3/28 (20060101)
G09G 3/30 (20060101)
Foreign Application Priority Data1985-01-07 JP
AbstractA display device which is driven by a high driving voltage, has a display panel with display electrodes. A conductor line extends along the surface of the display panel. A high voltage producing means is connected to one end of the conductor line for applying a high voltage to the display electrodes. A low voltage source is connected to the other end of the conductor line for operating the high voltage producing means. Thus, an application of the high voltage to the display electrodes is terminated when the conductor line is broken or cut as a result of damage to the display panel.