Browse Definitions :
Definition

3-D TV

3-D TV is a television display technology that enables a three-dimensional effect, so that viewers perceive that an image has depth as well as height and width, similarly to objects in the real world. 

The technology behind the 3-D effect is called stereoscopy or stereoscopic imaging. In human eyesight, the perspective difference between objects seen through the left and right eyes (binocular disparity), in conjunction with our accommodation (through focusing) to integrate those two perspectives, completes our ability to perceive three dimensions. Traditional 3-D TV (and movies as well) typically work by presenting two separate images – one for the right eye and one for the left – that are incorporated through the use of specialized glasses. Another technology, known as autostereoscopic imaging (auto 3-D), is screen-based and does not require viewers to wear special glasses.

Toshiba announced new 3-D TVs with autostereoscopic screen-based technology in November 2010. Toshiba’s display was based on nine separate perspectives of each 2-D frame. Currently, Toshiba’s 3-D display is only available in 12- and 20-inch sizes. Viewers must sit within a 40 degree range, either two or three feet away from the display (depending on the size) for the 3-D effect.

Because of bandwidth constraints, cable and satellite-based systems are not yet capable of broadcasting true 3-D. Although the amount of 3-D programming is constantly increasing, what it consists of is actually a half-resolution 3-D signal -- the only real 3-D content currently available for television is 3-D movies, such as Avatar, on Blu-ray discs.

All the common TV display technologies, including LCD, LED, OLED and plasma, are capable of including 3-D as a feature. Vendors of 3-D TVs include LG, Mitsubishi, Panasonic, Samsung, Sharp, Sony and Toshiba.

 

Learn more:

See our Flat-panel TV Guide for an explanation of technologies and features to look for.

CNET News provides a handy 3-D TV FAQ.

Wikipedia has more information about stereoscopy.

Globe Investor explains what you need to know before you shop for a 3-D TV.

This was last updated in December 2010

SearchCompliance

  • information governance

    Information governance is a holistic approach to managing corporate information by implementing processes, roles, controls and ...

  • enterprise document management (EDM)

    Enterprise document management (EDM) is a strategy for overseeing an organization's paper and electronic documents so they can be...

  • risk assessment

    Risk assessment is the identification of hazards that could negatively impact an organization's ability to conduct business.

SearchSecurity

  • cyber espionage

    Cyber espionage, also called cyber spying, is a form of cyber attack that is carried out against a competitive company or ...

  • virus (computer virus)

    A computer virus is malicious code that replicates by copying itself to another program, computer boot sector or document and ...

  • honeypot (computing)

    A honeypot is a network-attached system set up as a decoy to lure cyber attackers and detect, deflect and study hacking attempts ...

SearchHealthIT

SearchDisasterRecovery

  • risk mitigation

    Risk mitigation is a strategy to prepare for and lessen the effects of threats faced by a business.

  • call tree

    A call tree is a layered hierarchical communication model that is used to notify specific individuals of an event and coordinate ...

  • Disaster Recovery as a Service (DRaaS)

    Disaster recovery as a service (DRaaS) is the replication and hosting of physical or virtual servers by a third party to provide ...

SearchStorage

  • cloud storage

    Cloud storage is a service model in which data is transmitted and stored on remote storage systems, where it is maintained, ...

  • cloud testing

    Cloud testing is the process of using the cloud computing resources of a third-party service provider to test software ...

  • storage virtualization

    Storage virtualization is the pooling of physical storage from multiple storage devices into what appears to be a single storage ...

Close