DLP Rear Projection Television
A Bit of History
Texas Instruments engineer Dr Larry Hornbeck was the main inventor of the Digital Micro-mirror Device (DMD). Further development of it from 1987 via to 1993 brought it to its present state as the Digital Light Processing (DLP) chipset created for what’s additional commonly known as the Rear Projection Tv or DLP Television. Currently, the world’s largest manufacturer of DLP Rear Projection TV’s is Mitsubishi Electric who among other items are specialists inside the field of massive screen TV’s.
How Do DLP TV’s Function
A Rear Projection Tv uses an array of over a million microscopic mirrors (DMD’s) that individually measure 0.02 of a millimetre in width. The DMD’s are individually hinged and controlled by a spatial light modulator and optical semiconductors. When the Digital Light Processing chipset receives a digital video or graphic input signal it converts it into a black and white video light signal. The light signal then passes via the projection lens, is amplified through the projection lamp and then filtered with colour via the synchronized rotating colour wheel. Images are projected up onto the rear side with the screen which is viewed in reverse from the outside.
Advantages and Disadvantages of DLP TV’s
DLP Rear Projection Televisions do have a fairly loyal customer base with most who would say are an outstanding Tv. Taking into consideration the picture quality, picture clarity, picture sharpness, refresh rate and screen size to cost ratio quite a few would agree. But the DLP’s throughout their time have not been without drawbacks which have regrettably left an indelible mark of criticism among its peers forcing it to seemingly lose its rank among the shelves of several Television and electronic stores worldwide.
Some of those drawbacks are:
Having to replace a dimming or blown projection lamp every few years is almost certainly 1 of its biggest knock backs. Even so, it is actually a projection Television and their bulbs at some point burn out just like any other video projector bulb.
Yet another factor that dissuades the average would be punter from becoming a fully fledged follower may be the airy glow that the DLP’s have using the continuous illumination with the projection lamp inside the chassis housing with the DLP Television. This situation is similar to that of the backlight employed in regular LCD backlit TV’s. It produces a lower contrast ratio exactly where the black colours in darkened scenes aren’t true blacks but rather very dark bluish purple shades.
Then there is their physical bulkiness that is mostly attributed to them becoming the only Television of its kind to have mechanically moving parts in them requiring an appropriate size chassis base to house it. Though they’re comparatively light weight compared to a Plasma or LCD Television of equivalent screen size, they do occupy a fairly big chunk of floor space.
Value for Funds
On cost, a new 73 inch Mitsubishi 1080p 3D ready DLP HD Television goes for just more than $1,200. Whereas, an LG 60-inch 1080p Plasma HDTV is priced at $1,300+. Put that alongside a Samsung 60-inch 1080p LCD/LED HDTV and that can set you back just several dollars brief of $2,500, that is over double the cost with the DLP Tv however smaller in screen size. Mitsubishi’s range of Rear Projection TV’s commonly come in 65-inch, 73-inch and 82-inch screen sizes, and they will not break the bank either. But ahead of you rush out the door and invest in a DLP Television you must take into account the costs of sustaining one. Replacing the projection lamp 2 or three times over the life of a brand new Rear Projection Tv can mount up to properly more than some hundred dollars. Needless to say, the lifespan with the projection lamp is also dependent on what settings the Television is configured to with regard to ‘brightness’, ‘colour saturation’ and ‘contrast’ as well as how long and how typically you use it on an everyday basis. In essence, the crucial to a longer lasting projection lamp is “all settings in moderation”.
Some final words of tips if you are thinking about obtaining a DLP Rear Projection tv could be to read up on them, get a second opinion and go and see one for oneself to check it out after which make your personal mind up. If nevertheless, you are already familiar with Mitsubishi’s DLP technologies and do not mind putting up with its small quirks then you might be interested and delighted to know about the LASER Tv. A new generation of entirely revamped and upgraded DLP TV’s which utilizes LASER technology as its primary light source resulting in unparalleled picture high quality inside the big screen class of HD TV’s.
Processing your request, Please wait....
