Programmable key utilizing a liquid-crystal display and...

Details Programmable key utilizing a liquid-crystal display and... Programmable key utilizing a liquid-crystal display and...

Category

H - Electricity

Subcategory

01

Subsubcategory

L

CPC

345/8

IPC codes

H01L 33/00 (2006.01) G02F 1/13 (2006.01)

Type

Patent

Patent number

CA 1129530

Description

ABSTRACT OF THE DISCLOSURE A programmable key for displaying messages to an operator so as to draw the operator's attention actively to the key is presented. The key comprises a liquid-crystal display for showing at least one message on the key according to the program chosen, components for creating messages on the liquid-crystal display, and a device for enabling the liquid-crystal display to be translated from one position to another position. In typical operation, the liquid-crystal display is initially activated to show a message at the key's neutral position. When the key is depressed the liquid-crystal display automatically reactivates to show a second message. At either position, the key may show a blank screen by appropriate energization or deenergization of the liquid-crystal display.

Application Number

325972

Affiliated with

Also associated with

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