(ElectroLuminescent display) A flat panel display technology that provides a sharp, clear image and wide viewing angle. It contains a thin film phosphor layer sandwiched between an x-axis and a y-axis panel. When an x-y coordinate is charged, the phosphor in that vicinity emits visible light. The phosphors are more like semiconductor materials than those used in a CRT. Most EL displays are monochrome, typically yellow orange.
Active matrix EL is an advanced EL technology that uses a transistor at each pixel. It is used to make small head mounted displays (HMDs) that require very sharp images.
For Demanding Applications
Although some of the first portable computers used EL displays, they are mostly used in instrumentation for rugged military, transportation and industrial applications. EL screens range from 3/4" to 10" and larger, but are more cost effective in the smaller sizes. Planar Systems is the leader in this field.
Electroluminescent Technology
EL displays contain a powdered or thin film phosphor layer sandwiched between x- and y-axis panels. When an x-y coordinate is charged, the phosphor in that vicinity emits visible light. (Redrawn from diagram courtesy of Planar Systems, Inc., www.planar.com)
Heavy-Duty Uses
EL displays are used in rugged, heavy-duty applications such as the computer screen in this tractor-trailer. (Image courtesy of Planar Systems, Inc., www.planar.com)
Active matrix EL is an advanced EL technology that uses a transistor at each pixel. It is used to make small head mounted displays (HMDs) that require very sharp images.
For Demanding Applications
Although some of the first portable computers used EL displays, they are mostly used in instrumentation for rugged military, transportation and industrial applications. EL screens range from 3/4" to 10" and larger, but are more cost effective in the smaller sizes. Planar Systems is the leader in this field.
Electroluminescent Technology
EL displays contain a powdered or thin film phosphor layer sandwiched between x- and y-axis panels. When an x-y coordinate is charged, the phosphor in that vicinity emits visible light. (Redrawn from diagram courtesy of Planar Systems, Inc., www.planar.com)
Heavy-Duty Uses
EL displays are used in rugged, heavy-duty applications such as the computer screen in this tractor-trailer. (Image courtesy of Planar Systems, Inc., www.planar.com)
 | Reproduced with permission from Computer Desktop Encyclopedia. Copyright (c) 1981-2009 The Computer Language Company Inc. All rights reserved. |
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