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Browse Prior Art Database

LCD Word Processing Display

IP.com Disclosure Number: IPCOM000045494D
Original Publication Date: 1983-Mar-01
Included in the Prior Art Database: 2005-Feb-07
Document File: 2 page(s) / 22K

Publishing Venue

IBM

Related People

Edwards, JC: AUTHOR [+2]

Abstract

A limited display capability is provided with an electronic typewriter. The display is by low-cost liquid crystal display (LCD) elements. A display of 40 characters is provided. Sixteen large area LCD elements are arranged in the form of the document normally prepared, and that element located in the area corresponding to the place of the words in the character display is activated. This locates the words to their general position in the overall text.

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LCD Word Processing Display

A limited display capability is provided with an electronic typewriter. The display is by low-cost liquid crystal display (LCD) elements. A display of 40 characters is provided. Sixteen large area LCD elements are arranged in the form of the document normally prepared, and that element located in the area corresponding to the place of the words in the character display is activated. This locates the words to their general position in the overall text.

A one- or two-line display of 40 characters of text can be usefully associated with a memory typewriter. Two primary uses of the display are to display immediately keyed information while keying and to display selected contents of memory. In each of these uses, this system also provides a reference to where the information is on a page being prepared.

The page is represented as a finite number of large-area elements, sixteen in the example shown in the drawing. The page reference may be at either end of the 40-character display.

All the display is by standard LCD techniques. With the page display on an end, it is physically a part of the 40-character display and only requires two additional column-drive connections. (If the display is separate, it would require only one lead per segment plus one.)

In the drawing, the part primarily displayed is the part associated with the white page area. Where the display is nearly in the middle of the page, both left and right elements are turned white...