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Nixie tubes, LED-display and VF display, top to bottom.

A display device is an output device for presentation of information in visual or tactile form (the latter used for example in tactile electronic displays for blind people). When the input information is supplied as an electrical signal, the display is called an electronic display.

Common applications for electronic visual displays are televisions or computer monitors.

Segment displays[link]

Digital clocks display changing numbers.

The digital display of a calculating machine.

Some displays can show only digits or alphanumeric characters. They are called segment displays, because they are composed of several segments that switch on and off to give appearance of desired glyph. The segments are usually single LEDs or liquid crystals. They are mostly used in digital watches and pocket calculators. There are several types:

• Seven-segment display (most common, digits only)
• Fourteen-segment display
• Sixteen-segment display
• HD44780 LCD controller a widely accepted protocol for LCDs.

Full-area 2-dimensional displays[link]

2-dimensional displays that cover a full area (usually a rectangle) are also called video displays, since it's the main modality of presenting video.

Applications[link]

Full-area 2-dimensional displays are used in, for example:

• Television sets
• Computer monitors
• Head-mounted display
• Broadcast reference monitor

Underlying technologies[link]

Underlying technologies for full-area 2-dimensional displays include:

• Cathode ray tube display (CRT)
• Light-emitting diode display (LED)
• Electroluminescent display (ELD)
• Electronic paper, E Ink
• Plasma display panel (PDP)
• Liquid crystal display (LCD)
  • High-Performance Addressing display (HPA)
  • Thin-film transistor display (TFT)
• Organic light-emitting diode display (OLED)
• Surface-conduction electron-emitter display (SED) (experimental)
• Laser TV (forthcoming)
• Carbon nanotubes (experimental)
• Quantum dot display (experimental)
• Interferometric modulator display (IMOD)

Three dimensional[link]

• Swept-volume display
• Varifocal mirror display
• Emissive volume display
• Laser display
• Holographic display

Mechanical types[link]

• Ticker tape (historical)
• Split-flap display (or simply flap display)
• Flip-disc display (or flip-dot display)
• Rollsign
• Tactile electronic displays (aka refreshable Braille display) are usually intended for the blind. They use electro-mechanical parts to dynamically update a tactile image (usually of text) so that the image may be felt by the fingers.
  • Optacon, using metal rods instead of light in order to convey images to blind people by tactile sensation.
• Idiot lights, the "Check Engine" light on an automobile dashboard is the quintessential idiot light, giving only the information that something is amiss, but not what particular subsystem or component, nor how urgent the problem is. Neither does it give any information about issues that may be still within acceptable limits, but trending towards failure.

History[link]

In the history of display technology, a variety of display devices and technologies have been used.

See also[link]

• Comparison of display technology
• Comparison CRT, LCD, Plasma
• Large-screen television technology
• Times Square, where numerous display devices can be seen in use
• Haptic technology
• Graphical user interfaces
• CAD
• Computer-controlled milling machines
• Rapid prototyping
• Digital image processing
• Text display
• Vector graphics vs. Raster graphics
• Video card
• Graphics chip
• Computer graphics
• Flat panel display
• Human machine interface
• LCD projector

External links[link]

• Society for Information Display - An international professional organization dedicated to the study of display technology
• display-Magazine - The Online Magazine for Displays
• [1] - Solari di Udine

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Rosie Pérez
Pérez at the 2009 Tribeca Film Festival
Born	Rosa María Pérez (1964-09-06) September 6, 1964 (age 47) Bushwick, Brooklyn, New York City, United States
Occupation	Actress, dancer, choreographer, director, activist
Years active	1989–present
Spouse	Seth Zvi Rosenfeld (divorced)

Rosa María "Rosie" Pérez (born September 6, 1964, in Bushwick, Brooklyn, New York) is an American actress, dancer, choreographer, director and community activist.

Early life[link]

Pérez was born in the Brooklyn, New York, neighborhood of Bushwick to Afro-Puerto Rican parents. Her mother, Lydia Pérez (née Fontañez), a singer, was married to Ventura Pérez at the time of Rosie's birth. However, Rosie's biological father is Ismael Serrano, a merchant seaman with whom her mother had an affair. Much of her young life was spent in foster care.^[1][2][3] She attended Grover Cleveland High School, which is located in Ridgewood, in the New York City borough of Queens, and Los Angeles City College in Los Angeles, California.^[4]

Career[link]

Pérez was first noticed in a dance club by Spike Lee in 1988, who hired her for her first major acting role in Do the Right Thing.^[5] Pérez started her career in the late 1980s as a dancer on Soul Train and later choreographed music videos by Janet Jackson, Bobby Brown, Diana Ross, LL Cool J and The Boys.^{[citation needed]} She was the choreographer for the dancing group the Fly Girls who were featured on the Fox television comedy program In Living Color.

She made her Broadway debut in Terrence McNally's Frankie and Johnny in the Clair de Lune.^{[citation needed]} Perez had her third major role in the hit comedy White Men Can't Jump co-starring Wesley Snipes and Woody Harrelson.

Pérez was nominated for the Oscar for Best Supporting Actress for her role in Peter Weir's 1993 film Fearless. In 1997, she starred in Perdita Durango, a controversial film in which many scenes of excessive violence, sex and nudity were edited out of the version released in the United States but remained intact in the version released throughout Latin America.^{[citation needed]}

She provides the voices of Click, the camera, on Nick Jr.'s Go, Diego, Go! and Chel, a beautiful native woman in the DreamWorks Animation film The Road to El Dorado. She played corrupt police officer Carol Brazier in the Judd Apatow-produced film Pineapple Express, co-starring Seth Rogen and James Franco. Perez appeared on an episode of Law & Order: Special Victims Unit in October 2009 about pedophiles' rights. Executive producer Neal Baer said the writers had Perez in mind when they wrote the role of a young sexual abuse victim's mother.^[6] She suffered a serious injury during the filming of the episode.^[7] Most recently, Perez is the subject of a released album by Felt entitled Felt 3: A Tribute To Rosie Perez.

Injury[link]

Rosie Perez was injured in 2009 while filming an episode of Law & Order SVU. Her neck was injured when she was forcibly shaken as part of a scene. She has a slipped disc and a bulging disc in her neck and has undergone surgery for the condition. A year after the accident, she appeared at the White House in a wheelchair and wearing a neck brace for a meeting with President Obama.^[8] In May 2011, Perez filed a lawsuit against the producers of the show, claiming that the injury she incurred was the result of being "recklessly pulled, grabbed, yanked, wrenched and manhandled" during filming.^[9]

Activism[link]

Pérez is an activist for Puerto Rican rights. Her film Yo Soy Boricua! Pa' Que Tú Lo Sepas! (I'm Puerto Rican, Just So You Know!) documents her activism.^{[citation needed]} She starred in and directed the Spanish AIDS PSA campaign "Join the Fight" for Cable Positive and Kismet Films.^{[citation needed]} The campaign featured actor Wilmer Valderrama, BET's Julissa Bermudez, Telenovela actor Erick Elías, singer/actress Lorena Rojas, 2006–2007 Miss Universe Zuleyka Rivera and actress Judy Marte.^{[citation needed]} An English-language campaign was also directed by Liev Schreiber.^{[citation needed]} President Barack Obama appointed her to The Presidential Advisory Council on HIV/AIDS (PACHA). She was sworn in on February 2, 2010.^{[citation needed]}

On January 6, 2000, she was arrested for disorderly conduct in Manhattan following a rally to protest U.S. Navy air weapons training, as well as other forms of payload on the government training range owned at Vieques, itself a small island off the coast of then-Roosevelt Roads Naval Station.^{[citation needed]}

Perez serves as the chair of the artistic board for Urban Arts Partnership,^[10] a New York City arts education nonprofit that uses arts integrated education programs to close the achievement gap.

Filmography[link]

See also[link]

Puerto Rico portal

• List of Puerto Ricans

References[link]

External links[link]

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Wikimedia Commons has media related to: Rosie Perez

• Rosie Perez at the Internet Movie Database
• Rosie Perez at the Internet Broadway Database
• Rosie Perez at the Internet Off-Broadway Database
• 2006-2007 Join the Fight PSA Campaign
• Watch: Rosie Perez interview about her Documentary "Yo Soy Boricua" on independentfilm.com