Software conquers design and analysis of backlit LCDs

Research output: Contribution to journalArticle

Abstract

The proper design and analysis of edge-lit backlit liquid-crystal displays (LCD) is discussed. The goal of a good display design is high transfer efficiency, defined as the visible light flux emitted by the source compared to that emitted by the display output aperture. New features in software tools such as TracePro help keep track of these goals while reducing design complexity. A good design will balance high transfer efficiency and luminance uniformity, and will minimize spectral variation across the display. The most effective design incorporates the light source, injector, lightguide, microstructure lightguide features, back reflector, and films such as diffusers or brightness-enhancement films. Microstructure feature placed on the bottom of the lightguide surface reduce the total internal reflection (TIR) while addressing luminance uniformity. A new tool called Textured RepTile allows the designer to optimize the output luminance to obtain the highest transfer efficiency.

Original languageEnglish (US)
Pages (from-to)62-65
Number of pages4
JournalLaser Focus World
Volume43
Issue number10
StatePublished - Oct 2007
Externally publishedYes

Fingerprint

Software design
Liquid crystal displays
Luminance
computer programs
luminance
Display devices
reptiles
microstructure
Microstructure
software development tools
output
diffusers
injectors
reflectors
Light sources
light sources
brightness
apertures
liquid crystals
Fluxes

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Software conquers design and analysis of backlit LCDs. / Koshel, Richard John.

In: Laser Focus World, Vol. 43, No. 10, 10.2007, p. 62-65.

Research output: Contribution to journalArticle

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