john smith
I am looking to purchase a projector for my home but I am uncertain of the pros and cons of a lcd and dlp projector. If anyone could give me sufficient information on the difference of the two I would greatly appreciate it.
Answer
At one time DLP and LCD were considered to have areas where each was superior. For example, contrast was better on DLP, while 'rainbow effect" was a DLP phenomenon but not a concern with LCD, while 'screen door effect' was an LCD phenomenon not DLP. Today there is not too much to choose between the two technologies in terms of performance ... which is what matters.
However, DLP projectors tend to be a bit less expensive that LCD models (which in turn are cheaper than LCOS ... a third type). This is largely because lower priced DLP units use a single DLP chip, while LCD projectors all must use 3-LDC panels ... making optics and construction a bit more complex. Furthermore DLP projectors tend to have less mounting flexibility due to a fixed lens i.e. lack of offset capability (a feature whereby the image can be moved relative to the projector to allow it to register properly on a screen). And DLP models tend to have narrower zoom ranges than LCD models.
However, longevity of DLP is as good or better than LCD (In fact organic LCD panels can fail in a few years, making inorganic panels the right choice). And high end HT projectors ($10,000+) tend to be 3 chip DLP machines, so DLP can certainly give great results. In fact one manufacturer is just about to introduce a 4K DLP projector.
So ... bottom line ... don't worry about the technology (DLP or LCD). Look at performance specs and features and buy what gives you the best bang for the $$. See the link for lots of good advice and reviews.
At one time DLP and LCD were considered to have areas where each was superior. For example, contrast was better on DLP, while 'rainbow effect" was a DLP phenomenon but not a concern with LCD, while 'screen door effect' was an LCD phenomenon not DLP. Today there is not too much to choose between the two technologies in terms of performance ... which is what matters.
However, DLP projectors tend to be a bit less expensive that LCD models (which in turn are cheaper than LCOS ... a third type). This is largely because lower priced DLP units use a single DLP chip, while LCD projectors all must use 3-LDC panels ... making optics and construction a bit more complex. Furthermore DLP projectors tend to have less mounting flexibility due to a fixed lens i.e. lack of offset capability (a feature whereby the image can be moved relative to the projector to allow it to register properly on a screen). And DLP models tend to have narrower zoom ranges than LCD models.
However, longevity of DLP is as good or better than LCD (In fact organic LCD panels can fail in a few years, making inorganic panels the right choice). And high end HT projectors ($10,000+) tend to be 3 chip DLP machines, so DLP can certainly give great results. In fact one manufacturer is just about to introduce a 4K DLP projector.
So ... bottom line ... don't worry about the technology (DLP or LCD). Look at performance specs and features and buy what gives you the best bang for the $$. See the link for lots of good advice and reviews.
what is the meaning of DLP BOARD of projector?
homer_deje
Answer
Some digital projectors use DLP (Digital Light Processing) technology, which Texas Instruments developed, to project images. These projectors contain a DLP board that contains a memory chip, a microprocessor, and a specialized optical semiconductor called a DMD (Digital Micromirror Device). The screen on a computer monitor is composed of thousands of pixels, or picture elements; each pixel has red, green, and blue subpixels that, when illuminated, form an image. Something similar occurs in a digital projector. The DMD is only about 1/2-inch wide and contains close to 1 million microscopic mirrors. Each mirror represents a pixel. As the DMD receives data that tells it how bright each pixel should be, it switches the angle of each mirror. The DMD switches its mirrors thousands of times per second, directing each mirror to display the appropriate color and brightness. This would create a monochrome (black and white) image if it weren't for a color filter. The color filter lies between the projector's bulb and the DLP board and directs the correct combination of red, green, and blue light toward the DMD's mirrors, adding color.
Some digital projectors use DLP (Digital Light Processing) technology, which Texas Instruments developed, to project images. These projectors contain a DLP board that contains a memory chip, a microprocessor, and a specialized optical semiconductor called a DMD (Digital Micromirror Device). The screen on a computer monitor is composed of thousands of pixels, or picture elements; each pixel has red, green, and blue subpixels that, when illuminated, form an image. Something similar occurs in a digital projector. The DMD is only about 1/2-inch wide and contains close to 1 million microscopic mirrors. Each mirror represents a pixel. As the DMD receives data that tells it how bright each pixel should be, it switches the angle of each mirror. The DMD switches its mirrors thousands of times per second, directing each mirror to display the appropriate color and brightness. This would create a monochrome (black and white) image if it weren't for a color filter. The color filter lies between the projector's bulb and the DLP board and directs the correct combination of red, green, and blue light toward the DMD's mirrors, adding color.
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