Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1978-01-30
1979-12-04
Bauer, Edward S.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
3403782, G02F 113
Patent
active
041769171
ABSTRACT:
A liquid crystal display device having a transparent non-conductive front substrate and a rear non-conductive substrate between which is sandwiched a liquid crystal material. The front substrate includes at least one transparent conductive electrode with leads extending therefrom for connection thereto. The rear substrate includes a cooperating electrode assembly. Activating electrical voltage is applied between a selected front electrode and the rear electrode to create an electric field which activates the liquid crystal material. When the liquid crystal material is activated, it either disperses and changes the transmission characteristics of the liquid or it alters its plane of polarization. In either event the phenomenon is used to provide a display. The electrodes are shaped so that the widths of the rear electrodes are less than the front electrodes and no portion of the leads connected thereto overlap with the display. Thus, there can be electrode misalignment without changing the width of the display, the material under the leads is not activated, and the leads, or portions thereof, are not displayed.
REFERENCES:
patent: 3781863 (1973-12-01), Fujita
patent: 3837729 (1974-09-01), Harsch
patent: 3877015 (1975-04-01), Kanazaki et al.
patent: 4036550 (1977-07-01), Yih
Bauer Edward S.
Omron Tateisi Electronics Co.
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