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

  • heat pump

    - A heat pump is a device that takes heat from one source and moves it to another location through electric or mechanical means. Heat pumps may be used either to heat or cool. Heat pump technologies ... (WhatIs.com)

  • integrated solar

    - Integrated solar is the inclusion of solar power technology as a part of original construction rather than as a separate module that is added later. Solar energy may be gathered thermally or throug... (WhatIs.com)

  • segmented memory

    - Segmented memory is a system of addressing computer memory, which may be physical or virtual and may be operating in real or protected mode. The segmented memory system was used to expand the 64KB... (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.