Definition

grating light valve (GLV)

Part of the Electronics glossary:

Using grating light valve (GLV) technology, picture elements (pixels) are formed on the surface of a silicon chip and become the source for display projection on anything from an auditorium screen down to a handheld computer display. Using GLV, displays of the future may cost much less, require less space, and make high-resolution images possible in handheld personal communication devices. GLV was developed by David Bloom together with his students at Stanford University. Bloom has since founded Silicon Light Machines, which is developing the technology further.

GLV uses micro-electromechanical systems (MEMS) technology and optical physics to vary how light is reflected from each of multiple ribbon-like structures that represent a particular "image point" or pixel. The ribbons can move a tiny distance, changing the wavelength of reflected light. Grayscale tones are achieved partly by varying the speed at which given pixels are switched on and off. The resulting image can be projected in a large auditorium with a bright light source or on a small appliance using low-power LEDs as a light source.

This was last updated in March 2011
Posted by: Margaret Rouse

Related Terms

Definitions

  • flash storage

    - Flash storage, based on flash memory, is used for data repositories, storage systems and consumer devices, such as USB drives, smartphones and solid-state drives. Flash-based storage is faster than... (WhatIs.com)

  • media center PC

    - A media center PC is a dedicated computer connected to the user's digital TV. The computer components are typically chosen for characteristics such as low power consumption, low heat dissipation, i... (WhatIs.com)

  • geo-fencing (geofencing)

    - Geo-fencing is a feature in a software program that uses the global positioning system (GPS) or radio frequency identification (RFID) to define geographical boundaries. A geofence is a virtual barr... (WhatIs.com)

Glossaries

  • Electronics

    - Terms related to electronics, including definitions about electrical components and words and phrases about computers, laptops parts, digital cameras, televisions and home appliances.

  • Internet applications

    - This WhatIs.com glossary contains terms related to Internet applications, including definitions about Software as a Service (SaaS) delivery models and words and phrases about web sites, e-commerce ...

Ask a Question About grating light valve (GLV)Powered by ITKnowledgeExchange.com

Get answers from your peers on your most technical challenges

Tech TalkComment

Share
Comments

    Results

    Contribute to the conversation

    All fields are required. Comments will appear at the bottom of the article.