Browse Prior Art Database

Direct Page Printer

IP.com Disclosure Number: IPCOM000099243D
Original Publication Date: 1990-Jan-01
Included in the Prior Art Database: 2005-Mar-14
Document File: 3 page(s) / 69K

Publishing Venue

IBM

Related People

Hovatter, MJ: AUTHOR

Abstract

Disclosed is a device to obtain direct, rapid and page printing including graphics utilizing a crystal medium.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 88% of the total text.

Direct Page Printer

       Disclosed is a device to obtain direct, rapid and page
printing including graphics utilizing a crystal medium.

      An image is formed on the liquid crystal display (LCD) trans

                            (Image Omitted)

 ferring information in a system to the
configuration electronics associated the liquid crystal display.  The
image content of the crystal is the product of both the computing
system the liquid crystal electronics.  The LCD assembly is to be
transparent to allow light to pass through crystal medium as is the
case in a backlighted liquid display.

      The state of the liquid crystal determines if light is or
rejected through the various areas of the liquid screen (Fig.
Therefore, an image displayed on the LCD may then be if the condition
of the light passing through the screen (passage or non-passage) is
detected.  This is performed using conventional photodetectors. light
detected in the photodetectors is then converted electrical current
which is passed through a resistive strip array.  The position and
the orientation of the and the heat strip elements are in alignment
produce a temperature gradient along the profile of the strip which
corresponds to the light gradient passing the LCD. The image is
transcribed from the LCD to a thermo-paper copy by linearly moving
the array behind the LCD screen concurrent with movement of the heat
strip across a conventional heat paper.  Fig. 2...