educomp projector lcd panel factory

What would happen if your projector went dark in the middle of a presentation? Would a training session end prematurely, making your team have to come back at a later time? Would a client interaction get interrupted, possibly costing you and your team a sale? If your projector lamp fails, this could happen to you. To prevent this from happening, projector manufacturers build lamp timers into their units to let you know when to replace your bulb before it fails. While you"re probably already changing your projector"s bulb periodically, are you also resetting the timer every time? If you aren"t, your projector can"t warn you when you need to replace that new bulb.

• If an incorrect password is entered three times in succession, the message “The projector’s operation will be locked.” is displayed for about five minutes, and then the projector switches to standby mode. If this happens, disconnect the power plug from the electrical outlet and then reinsert it and turn the projector’s power back on. The projector displays the password entry screen again so that you can enter the correct password.

• If you continue to repeat the above operation and input the wrong password thirty times in succession, the following message is displayed and the projector does not accept any more password entries. “The projector’s operation will be locked. Contact Epson as described in your documentation.

We deals in high quality all branded Projector Parts like- Lamp, Lcd prism, Lens, Polarizer, SMPS, Ballast , Color wheel, DMD Chip, Plastic Lens, Remote, Fan all related accessories etc.

We can repair your projector to its full functionality and restore it to its factory specs.  When you receive it, you will get feel of getting new projector. Based on our experience, projectors which are heavily used can suffer from power issues, cooling issues, and image discoloration.

Whether the unit needs new polarizing filters, mirrors, fans, or bulbs, we can help.  We are an after warranty service center for Benq, Sony, Dell, HP, Infocus, Epson, Hitachi, Cannon, JVC, Viewsonic, Panasonic, Mithushibi, Sharp, NEC, Vivetek,  Educomp, Unic, egate and a high volume projector service center for Educomp, Benq, Epson, Dell, Optoma, InFocus Projectors.

Devices that can project images or videos onto the screen can be connected with computers and other devices through different interfaces to play corresponding video signals. Projectors are widely used in homes, offices, schools and entertainment places

Your school’s projectors play a critical role in the education of students. When a classroom’s projector malfunctions, it not only impacts lesson plans but also impacts the ability of pupils to absorb pertinent information. If your school has a projector that is on the fritz, try these hacks to remediate the five most common projector issues.

If after trying all of the above tips the projector is still not turning on, the issue could be something more complex like damage to internal components.

It is natural for projectors to become hot as they are in use, but sometimes projectors overheat when they need cleaning, maintenance or better air circulation. If your projector is randomly shutting down or displaying a warning message, utilize the following tips to resolve the overheating:

There are countless makes and models of projectors –all with different parts and pieces– so it’s generally best to refer to the owner’s manual to determine the meaning of a blinking projector light. However, these are the most common reasons and solutions to blinking lights on your projector:

Power Light: If the power button light is green or flashing green, the projector is likely on or warming up. If the power light is orange or flashing orange, the projector might be in standby mode or turning off.

Temperature Light: If the temperature light is flashing orange or red, this typically means your projector is overheating or in need of cleaning. Be sure to clear any clutter from around the projector and to remove any items that may be blocking its vents.

If none of the above suggestions help with the discoloration, the problem could be more serious. Contact a professional projector repair service to inspect the color wheel or polarizing plates.

Although lamp life varies from projector to projector, all lamps need to be replaced at some point making this one of the most common projector issues. Signs of a burnt out lamp include:

If you are experiencing any of the above common projector problems or are in need of additional assistance, contact the professionals at K-12 Tech. We specialize in maintenance and repair of school technology ranging from computer and tablets to projectors and more. Through our projector repair services, we can provide onsite repairs, mail-in repairs, and pickup repairs. We look forward to serving your school’s technology needs with unmatched repair turnaround time and superior customer service.

An LCD projector is a type of video projector for displaying video, images or computer data on a screen or other flat surface. It is a modern equivalent of the slide projector or overhead projector. To display images, LCD (liquid-crystal display) projectors typically send light from a metal-halide lamp through a prism or series of dichroic filters that separates light to three polysilicon panels – one each for the red, green and blue components of the video signal. As polarized light passes through the panels (combination of polarizer, LCD panel and analyzer), individual pixels can be opened to allow light to pass or closed to block the light. The combination of open and closed pixels can produce a wide range of colors and shades in the projected image.

Metal-halide lamps are used because they output an ideal color temperature and a broad spectrum of color. These lamps also have the ability to produce an extremely large amount of light within a small area; current projectors average about 2,000 to 15,000 American National Standards Institute (ANSI) lumens.

Because they use small lamps and the ability to project an image on any flat surface, LCD projectors tend to be smaller and more portable than some other types of projection systems. Even so, the best image quality is found using a blank white, grey, or black (which blocks reflected ambient light) surface, so dedicated projection screens are often used.

Perceived color in a projected image is a factor of both projection surface and projector quality. Since white is more of a neutral color, white surfaces are best suited for natural color tones; as such, white projection surfaces are more common in most business and school presentation environments.

However, darkest black in a projected image is dependent on how dark the screen is. Because of this, some presenters and presentation-space planners prefer gray screens, which create higher-perceived contrast. The trade-off is that darker backgrounds can throw off color tones. Color problems can sometimes be adjusted through the projector settings, but may not be as accurate as they would on a white background.

Early experiments with liquid crystals to generate a video image were done by John A. van Raalte at the RCA-Laboratories in 1968.CRT with a modified faceplate to generate a charge pattern on its surface. No practical application of this concept for projection purposes is known. However, a similar concept was used for print heads without an LCD.

The first experiments with a direct-driven, transmissive matrix-addressed LCD using a converted slide projector by Peter J. Wild working at Brown Boveri Research in Switzerland were conducted in 1971. A projector was shown in operation at the SID Conference 1972 in San Francisco.thin-film transistors) at the matrix intersections) were not capable of displaying images with sufficient resolution for video pictures, a combination of a fixed image together with an LCD matrix for the variable elements was proposed as an LC projector for certain control room applications,

A lot of effort went into optimizing thin-film transistors (TFT) suitable for active matrix-addressed (AM) LCDs. The concept was invented and early trials were conducted by teams at RCA and Westinghouse Electric. T Peter Brody left Westinghouse and founded Panelvision in 1981 to manufacture AM LCDs. Breakthroughs occurred elsewhere in new materials and thin-film structures, with Hitachi of Japan as a pioneering company. Such AM LCDs became commercially available in the early 1980s.

Gene Dolgoff had the idea of using LCDs as light valves in projectors. However, he had to wait until 1984 to get a digitally-addressable LCD matrix device with sufficient resolution and contrast, which is when he completed building his LCD video projector. After building it, he saw many problems that had to be corrected including major light losses and very noticeable pixels (sometimes referred to as the "screen-door effect"). He then invented new optical methods to create efficient and bright projectors and invented depixelization to reduce the screen-door effect.

At about the same time, the German company "Bonner Ingenieurbüro für Optoelektronik CrystalVision" started experimenting with LCD projection devices from 1985 onwards. Although traditional slide projectors already used infrared filters to reduce heating of the photographic slides, LCDs are much more sensitive to overheating. When the temperature in the nematic liquid crystal layer reaches the "clearing point" (i.e. enters the isotropic phase), the LC light valve does not work anymore until the temperature drops below again. Bernt Haastert, an engineer working at CrystalVision, found out, that placing the required polarizing filters at a certain distance on both sides of the LC cell allowed for efficient air cooling of the arrangement.

With patents filed worldwide (filing his first LCD video projector patent application in 1987), Dolgoff started Projectavision, Inc. in 1988, as one of the world"s first dedicated LCD-projector companies, which he took public on Nasdaq in 1990. He licensed the technology to other companies including Panasonic and Samsung. Early pioneers of LCD projection in Japan were Epson and Sharp,

In 1989, Projectavision, Inc. was awarded the first Defense Advanced Research Projects Agency (DARPA) contract – for US$1 million – for proposing that the United States high-definition television (HDTV) standard should use digital processing and projection. As a member of the National Association of Photographic Manufacturers Standards Subcommittee, IT7-3, Dolgoff along with Leon Shapiro, co-developed the worldwide ANSI standard for measurement of brightness, contrast, and resolution of electronic projectors.

Since 2005,Epson and Sony. Epson owns the technology and has branded it as "3LCD". To market 3LCD projector technology, Epson also set up a consortium called the "3LCD Group" in 2005 with other projector manufacturer licensees of 3LCD technology that use it in their projector models.

Early LCD systems were used with existing overhead projectors. The LCD system did not have a light source of its own: it was built on a large "plate" that sat on top of the projector in place of transparencies. This provided a stop-gap solution in the era when the computer was not yet a universal display medium, creating a market for LCD projectors before their current main use became popular.

This technology was employed in some sizes of rear-projection television consoles when there was a cost advantages in mid-size sets (40- to 50-inch diagonal). In 2014, 60-inch 1080p flat panel televisions were less costly than a projector with 1080p native resolution. Projection systems were typically marketed as offering a diagonal image size of 100 to 300 inches.

In 2004 and 2005, LCD front projection began a comeback with the introduction of the dynamic iris and other modifications that have improved perceived contrast to levels similar to DLP.

The basic design of an LCD projector is frequently used by hobbyists who build their own DIY (do-it-yourself) projection systems. The basic technique is to combine a high color-rendering index (CRI) high-intensity discharge lamp (HID lamp) and ballast with a condenser and collector Fresnel lens, an LCD removed from a common computer display and a triplet lens.

Fischetti, Mark (November 2007). "Two Technologies Shine". Two technologies – micromirrors and liquid-crystal displays (LCDs) – have been vying for these markets, but they are doing equally well in today"s home and business areas....