Browse Prior Art Database

Low Cost Display Unit

IP.com Disclosure Number: IPCOM000086717D
Original Publication Date: 1976-Oct-01
Included in the Prior Art Database: 2005-Mar-03
Document File: 2 page(s) / 38K

Publishing Venue

IBM

Related People

Franklin, RE: AUTHOR

Abstract

A low-cost display unit includes a linear array of light-emitting diodes fixedly secured to a belt of flexible material 13 which is, in turn, wrapped about shafts 15 and 17. Rotation of motor 19 effects corresponding rotation of shaft 17 and movement of belt 13 in the direction of arrow 21. The belt 13 has strips of conducting material 23 embedded therein, each strip being electrically connected to a corresponding light-emitting diode of the linear display of diodes 11. As the belt rotates about shaft 15, the embedded conducting strips contact corresponding contacts located on shaft 15 allowing electrical signals to be transferred from the nonrotating shaft 15 to the individual light-emitting diodes.

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Low Cost Display Unit

A low-cost display unit includes a linear array of light-emitting diodes fixedly secured to a belt of flexible material 13 which is, in turn, wrapped about shafts 15 and 17. Rotation of motor 19 effects corresponding rotation of shaft 17 and movement of belt 13 in the direction of arrow 21. The belt 13 has strips of conducting material 23 embedded therein, each strip being electrically connected to a corresponding light-emitting diode of the linear display of diodes 11. As the belt rotates about shaft 15, the embedded conducting strips contact corresponding contacts located on shaft 15 allowing electrical signals to be transferred from the nonrotating shaft 15 to the individual light-emitting diodes.

As the light-emitting diode array is translated from left to right, logic 25 is provided with a signal, indicating the present position of the light-emitting diode array, and with character input information. The unit 25 then provides output signals to the contacts on the shaft 15 to create a moving image display.

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