We repair all brands of Big Screen TV’s including:
• Plasma TV
• 3D TV
• LED TV
• LCD TV
• DLP TV
• Projection TV
• Traditional TV
PLASMA
History
The concept for plasma display panels was first conceived in July 1964 at the University of Illinois. The first displays were nothing more than points of light created in laboratory experiments. From then on, the technology was developed and improved and by the late 60's, it had become advanced enough to allow the scientists to construct geometric shapes. Further development was limited, scientists were restricted by the materials that were available, so screens were small, and image quality was low. Today the progression in high speed digital processing, materials and advance manufacturing technology, has made full color, bright plasma displays possible. Fujitsu was the first to offer a plasma television to the market. While many companies showed them at the trade fairs, only Fujitsu had them had them fully resolved.
Video - display convergence
To summarize, plasma's will do what few other televisions will - display computer signals.
They are a truly versatile display device. Fujitsu calls them convergence products. Accepting the input from virtually any video source, plasmas' are the perfect convergent visual display for numerous applications. It can display images in true 1080i and 720p HDTV as well as 480i and 480p SDTV signals, thanks to its improved 1024 x 1024 high-resolution pixel array. The PDS-4241 can also display the video output from a computer up to UXGA resolution, to display computer graphics with extraordinary clarity and color definition. most video devices accept composite and S-video as two types of signal transmission. Almost all plasma televisions will accept both inputs.
3D
In the late-1890's, the British film pioneer William Friese-Greene filed a patent for a 3-D movie process. When viewed stereoscopically, it showed that the two images are combined by the brain to produce 3-D depth perception. On June 10, 1915, Edwin S. Porter and William E. Waddell presented tests to an audience at the Astor Theater in New York City. In red-green anaglyph, the audience was presented three reels of tests, which included rural scenes, test shots of Marie Doro, a segment of John Mason playing a number of passages from Jim the Penman (a film released by Famous Players-Lasky that year, but not in 3-D), Oriental dancers, and a reel of footage of Niagara Falls. However, according to Adolph Zukor in his 1953 autobiography The Public Is Never Wrong: My 50 Years in the Motion Picture Industry, nothing was produced in this process after these tests.
In the 1950s, when TV became popular in the United States, many 3-D movies were produced. The first such movie was Bwana Devil from United Artists that could be seen all across the US in 1952. One year later, in 1953, came the 3D movie House of Wax which also featured stereophonic sound. Alfred Hitchcock produced his film Dial M for Murder in 3D, but for the purpose of maximizing profits the movie was released in 2D because not all cinemas were able to display 3-D films. The Soviet Union also developed 3-D films, with Robinzon Kruzo being its first full-length 3-D movie, in 1946.
3D-ready TV sets are those that can operate in 3D mode (in addition to regular 2D mode) using one of several display technologies to recreate a stereoscopic image. These TV sets usually support HDMI 1.4 and a minimum (input and output) refresh rate of 120 Hz; glasses may be sold separately.
Philips was developing 3D television sets that would be available for the consumer market by about 2011 without the need for special glasses (autostereoscopy). However it was canceled due to the slow adoption of customers going from 2D to 3D.
In August 2010, Toshiba announced plans to bring a range of autosteroscopic TVs to market by the end of the year.
The Chinese manufacturer TCL Corporation has developed a 42-inch (110 cm) LCD 3D TV called the TD-42F, which is currently available in China. This model uses a lenticular system and does not require any special glasses (autostereoscopy). It currently sells for approximately $20,000.
LG, Samsung, Sony, and Philips intend to increase their 3D TV offering with plans to make 3D TV sales account for over 50% of their respective TV distribution offering by 2012. It is expected that the screens will use a mixture of technologies until there is standardisation across the industry. Samsung offers the LED 7000, LCD 750, PDP 7000 TV sets and the Blu-ray 6900.
Full 3D Tv Sets
Toshiba has shown 20 and 12 inch autostereoscopic (glasses-free) LCD 3D TV sets for commercial launch, with a 1280x720 resolution. By systematically aligning pixels and adopting a perpendicular lenticular sheet, Toshiba's LCD panel eliminates blurring,[disambiguation needed] or the vertical wave pattern (caused by interference in the display cycle) that plagues other autostereoscopic 3-D technologies. The viewing angle is about 40°, doubling the previous approaches. Toshiba's glasses-free 3D TV does suffer initial limitations such as viewing distance and cost, the 12 inch model will sell for roughly $1400. Toshiba are expected to deliver their glasses-free 3D TV on a global scale by 2015.
September 2011: Based on Cnet review, Toshiba 55ZL2 is indeed ready for prime time with 3,840x2,160 pixel, abundant pixels needs for Glasses-free 3D which produces nine 3D views, each created by a directional 'lenticular lenslet' filter. Stunningly smooth and detailed images, but it's not 1080p and it's probably closer to 720p, so the images aren't as clear as those of regular active-shutter 3D TVs. Some considerations are:
-it should be watched in a blacked-out room
-the parallax effects appeared quite shallow, there's depth to images, and it's not immersive
-currently there is no video content with resolution of 8 million pixels.
LED
Flat Panel LED Television DisplayPossibly the first true all LED flat panel television TV screen was developed, demonstrated and documented by J. P. Mitchell in 1977. The modular, scalable display was initially designed with hundreds of MV50 LEDs and a newly available TTL memory addressing circuit from National Semiconductor.The ¼ in thin flat panel prototype and the scientific paper were displayed at the 29th ISEF expo sponsored by the Society for Science and the Public in Washington D.C. May 1978. The technical display received awards and recognition.Awards included NASA,General Motors Corporation, and recognition from faculty and area Universities and the IEEE. The monochromatic LED prototype remains operational. An LCD (liquid crystal display) matrix design was also cited in the LED paper as an alternative x-y scan technology and as a future alternate television display method. The replacement of the 70 year+ high-voltage analog system (cathode-ray tube technology) with a digital x-y scan system has been significant. Displacement of the electromagnetic scan systems included the removal of inductive deflection, electron beam and color convergence circuits. The digital x-y scan system has helped the modern television to “collapse” into its current thin form factor.
In 1978, Mitchell also submitted his paper to the Westinghouse Science Talent Search contest, where he received an Honorable Mention.
Mitchell also presented his paper at the 90th Session of The Iowa Academy of Science April 21–22, 1978, at the University of Northern Iowa, Cedar Falls, Iowa.
The 1977 model was monochromatic by design. Efficient blue LEDs did not arrive for another decade. Large displays now use high-brightness diodes to generate a wide spectrum color palette. It took three decades and organic electroluminescent materials for Sony to introduce an LED TV: the Sony XEL-1 OLED screen which was marketed in 2009.
LCD
LCD TV is a flat panel television that utilizes the same basic Liquid Crystal Display technology that has been in used for some time in cell phones, camcorder viewfinders, and computer monitors.
LCD panels are made of two layers of a glass-like material, which are polarized, and are "glued" together. One of the layers is coated with a special polymer that holds the individual liquid crystals. Electric current is then passed through individual crystals, which allow the crystals to pass or block light to create images.
LCD crystals do not produce their own light, so an external light source, such as florescent bulb is needed for the image created by the LCD to become visible to the viewer.
Unlike standard CRT and Plasma televisions, there are no phosphors that light up, and, thus LCD panels are thin and require less power to operate.
Because of the nature of LCD technology, there is no radiation emitted from the screen itself, unlike traditional televisions.
Also, without the need for a picture tube, LCD televisions can be made very thin, thus allowing them to hung on a wall or placed on small stand on top of a table, desk, dresser, or cabinet very easily.
Combining the above technology with the features of a traditional television, such as, AV input/output connectivity, side or bottom mounted loudspeakers, TV tuner, and traditional television adjustment controls, bring to life a concept that is becoming a popular option for TV and home theater viewing.
DLP
At the heart of every DLPprojection system is an optical semiconductor known as the DLP chip, which was invented by Dr. Larry Hornbeck of Texas Instruments in 1987.
The DLP chip is probably the world's most sophisticated light switch. It contains a rectangular array of up to 2 million hinge-mounted microscopic mirrors; each of these micromirrors measures less than one-fifth the width of a human hair.
When a DLP chip is coordinated with a digital video or graphic signal, a light source, and a projection lens, its mirrors can reflect a digital image onto a screen or other surface. The DLP chip and the sophisticated electronics that surround it are what we call DLP technology
1-CHIP DLP PROJECTION SYSTEM
Televisions, home theater systems and business projectors using DLP technology rely on a single chip configuration like the one described above.
White light passes through a color filter, causing red, green, blue and even additional primary colors such as yellow cyan, magenta and more to be shone in sequence on the surface of the DLP chip. The switching of the mirrors, and the proportion of time they are 'on' or 'off' is coordinated according to the color shining on them. Then the sequential colors blend to create a full-color image you see on the screen
Projection Tv
The actual term "rear-projection" comes from the fact that the image is projected and reflected onto the screen from behind the screen, unlike traditional video and film projection in which the projector itself is placed in front of the screen, such as in a movie theater
The Elements Of Rear-Projection Television
There are five basic elements in the construction of a rear-projection television. First, there is the type of projector technology used to produce a video image. Second, the type of lens assembly used to magnify the projected image. Third, the necessity to employ a mirror to reflect the projected image. Fourth, the screen upon which the reflected image is presented. Fifth, the sealed box that contains all of the previous elements. 
Video Projection Technology
Currently, there are three major basic types of projection technology commonly used in rear-projection televisions in today: CRT, LCD, and DLP. There are also variations of these three types that are not widely used at this time (including D-ILA and LCOS). However, for the purposes of this article, I have chosen to present an overview of the three major video projection technologies.
The CRT (Cathode Ray Tube) Projection System
When rear-projection televisions first arrived on the scene, television technology was based on the Cathode Ray Tube (CRT). In a CRT-based rear-projection television, three small CRTs (one for each primary color), coupled with a light magnifying lens, projects a color image onto a mirror and is then reflected onto a screen. With the proper video processing circuitry, CRT size, and lens combination, a CRTs can produce excellent high resolution images.
TRADITIONAL TV
Television is certainly one of the most influential forces of our time. Through the device called a television set or TV, you are able to receive news, sports, entertainment, information and commercials. The average American spends between two and five hours a day glued to "the tube"!
Have you ever wondered about the technology that makes television possible? How is it that dozens or hundreds of channels of full-motion video arrive at your house, in many cases for free? How does your television decode the signals to produce the picture? How will the new digital television signals change things? If you have ever wondered about your television (or, for that matter, about your computer monitor), then read on! In this article, we'll answer all of these questions and more.
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