Browse Prior Art Database

Voltage-Indicating Device for Batteries Used in Computers and Other Electronic Products

IP.com Disclosure Number: IPCOM000113388D
Original Publication Date: 1994-Aug-01
Included in the Prior Art Database: 2005-Mar-27
Document File: 2 page(s) / 44K

Publishing Venue

IBM

Related People

Isern Flecha, IM: AUTHOR [+4]

Abstract

This article discloses an electronic battery indicator for use in portable electronic products. Fig. 1 depicts an electronic battery indicator comprising a conductive film with a liquid crystal polymer having voltage-sensitive properties disposed thereon, and a transparent cover for covering said liquid crystal polymer. A switch connects the conductive film into the battery circuit of the portable electronic product and the corresponding voltage level is indicated by the liquid crystal display. Voltage indicator can indicate the state of charge of the battery or the relative amount of service hours remaining in the battery.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 100% of the total text.

Voltage-Indicating Device for Batteries Used in Computers and Other
Electronic Products

      This article discloses an electronic battery indicator for use
in portable electronic products.  Fig. 1 depicts an electronic
battery indicator comprising a conductive film with a liquid crystal
polymer having voltage-sensitive properties disposed thereon, and a
transparent cover for covering said liquid crystal polymer.  A switch
connects the conductive film into the battery circuit of the portable
electronic product and the corresponding voltage level is indicated
by the liquid crystal display.  Voltage indicator can indicate the
state of charge of the battery or the relative amount of service
hours remaining in the battery.

      Fig. 2 depicts several embodiments of this article in portable
electronic products including a battery pack, a cellular battery pack
and a laptop PC.

      It is important to point out that the liquid crystal polymer
can have monochrome or color voltage-sensitive properties.  Liquid
crystal material is preferred to be of the thermochromic type.