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Browse Prior Art Database

USER SELECTABLE COLOR EL PANELS

IP.com Disclosure Number: IPCOM000006961D
Original Publication Date: 1993-Jun-01
Included in the Prior Art Database: 2002-Feb-12
Document File: 1 page(s) / 65K

Publishing Venue

Motorola

Related People

Rodney Whaley: AUTHOR [+2]

Abstract

Presently EL back light panels are only available in one color. The ability to change the color of the EL panel is available. The main factors which determine the panel color are 1) Phosphor material used 2) Dye color used 3) Frequency of the drive circuit.

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MO-LA INC. Technical Developments Volume 19 June 1993

USER SELECTABLE COLOR EL PANELS

by Rodney Whaley and Mauricio Flores

  Presently EL back light panels are only available in one color. The ability to change the color of the EL panel is available. The main factors which determine the panel color are 1) Phosphor material used 2) Dye color used 3) Frequency of the drive circuit.

  In order to create the effect of a color adjustable EL panel it would be possible to stack successive layers of panels with diierent colors as shown in Figure 1. Then by illuminating the individual panels in combinations different colors will be created. By having the layers inde

pendent it would allow the user the ability to select which panels are illuminated and in effect change the EL panel to the color they desire.

  In order to make the individual layers independent of one another it would be necessary to create "fingers" of phosphor on each layer. These fingers could then be staggered so that any one color could be displayed with- out ill~ating the other layers. A model of this is shown below.

Fig 1

0 Motorola. 1°C. 1s93 121

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