The three issue to help you buying projector

1, select LCD or DLP

When you buy, the salesperson will ask you is to choose the LCD projector or DLP projector? At this point you may be up a gum tree? In the end choose a good? Which are good? In fact, both in the home have their own advantages in the projector; DLP is a new projection technology, LCD projection technology tradition. Compare old and new technology, of course, new technology slightly better than the old technology, as "a chip" on the performance in a compact and portable, true and accurate image reproduction, image layering is good, excellent black effect. Of course, the traditional LCD projector technology is relatively mature, with high light efficiency, beautiful color, saturation and good technical superiority can not be replaced. However, to remind the user one, in the same resolution, DLP technology, the projector's LCD technology, the price is almost double.
2, the brightness and contrast

many friends have asked to buy the projector, is not the brightness as high as possible? In actual fact, if you are buying business machines, of course, the higher the brightness the better, because the business use of the environment area, and strong light, which is not the same with the home environment. For individual users, too bright is not necessarily a good thing. Because individual users of the use of the area is much smaller, better interior shading, projection screen is too bright, but people feel dazzling, and even eye damage. The general area of home users use of the environment, if 20 to 50 square meters, the general brightness of the projector home at 800 lumens to 1200 lumens or so. On the contrast, that is, the higher the better. The higher contrast, sharper images eye-catching, bright vivid colors, details to show good results. Performance in contrast, DLP has the advantage over LCD.

3, resolution and aspect ratio

Buy home projectors, of course, is to buy affordable and models, so be sure to know what kind of parameters linked with the price. Following the resolution just like we said the price of the projector has a great relationship, the higher the resolution, the clearer the image projector, of course, the higher the price. From a long-term perspective, if economic conditions permit, it is best to buy the physical resolution XGA projector, which displays the effect is clearer, bright. But for the home, the current SVGA projector can meet the needs of most people. Is worth a reminder to purchase the projector, be sure to distinguish between the good standard resolution and maximum resolution, standard resolution is the normal display output when the projector resolution, while the maximum resolution supported is outside the projector maximum resolution of the device, meaning that if the purchase of a maximum resolution of 1024 × 768, while the true resolution of 800 × 600 projector, the picture of the show is 800 × 600.

In addition, the projector when you buy be sure to ask, the real projection projector or a 16:9 ratio is 4:3, and now most of the DVD film source is a "variable-type wide-screen 16:9" mode, followed by HD standard 16:9 aspect ratio television screen, home projector or a 16:9 ratio will be the trend with the development. With the micro projector features become more perfect, but also into more and more families.

Home projector LCD technology and the DLP technology

LCD and DLP projectors are the current mainstream technology, which technology is better? That there is no standard answer, it depends entirely on the applications. Techniques have strengths and key for consumers to understand their needs, understanding the characteristics of LCD and DLP each, on-demand options.

LCD projector is the LCD imaging device, when the light through the LCD panel, each pixel according to image signals are turned on or off, so that some light through, and some were cut off. By adjusting the light to produce the image projected onto the screen. The current mainstream LCD projectors have been used EPSON (Epson) 3LCD technology, which uses three LCD panels as imaging devices, optical system through the spectroscope the light was separated into red, green, and blue, individually for each a color brightness and contrast control, the performance of this color is very important. As the current 3LCD technology has been very mature, three-color light to reach the screen is almost the same time, so the control circuit in the high quality 3LCD projector, the projection is very good, bright true color reproduction, rich layers and color saturation.

The disadvantage of early LCD projectors, and now one by one to improve. Such as LCD projector prone to the grid phenomenon, with the EPSON has launched the first 5th generation high-temperature polysilicon panels and projectors to improve the resolution has been hard to detect and use the 5th generation high-temperature polysilicon panels can greatly improve the projector's resolution, to 1920 × 1080, support for 1080p high-definition mode really. Moreover, the light efficiency and contrast are greatly improved, with aperture-linked technology; 3LCD technology has been achieved up to 6000:1 contrast ratio, which is of great significance for video playback. As a whole, the best color performance to 3LCD projection technology for motion video playback, ideal for home theater applications.

DLP projector LCD projector for it is a rising star. It works completely different from the LCD projector; the light source of the light emitted by high-speed rotating color wheel produces red, green, and blue, followed by alternate exposure to the DMD (Digital Micromere Device, DMD) of the surface. DMD micro mirror surface according to their corresponding pixels in the light of the availability of such colors and off two positions in the high-speed switching, and finally, after reflection by the mirror, projected onto the projection screen to form images. As a way of using reflection imaging, contrast can be very high, very good uniformity. Because there is no convergence problems, especially in the projection in the text show some small font text or drawings shows the best. Well suited to text and form-based business or education market.
DLP projector as the main color is determined to rely on the color wheel; color processing speed is low, poor color reproduction, but also the rainbow effect, the overall color performance to be inferior to 3LCD technology. As technology improved, the current color wheel has changed from the original RGB to RGBW three-stage development of four sections, on the home that require high color DLP projector or used RGBRGB Six-color wheel, color processing speed increases, substantially reducing Little of the rainbow effect. But from a practical effect, most DLP products still lack the kind of real ideal brilliant colors.

Overall, in the current high-end home projector market, high-end DLP products with ultra-high contrast, good color enhancement technology to win the favor of some users; in the same price on the 3LCD products favorably in all respects, Even more unique to show the film "film sense" screen, they are points and weak points. In the end home mirco projector market, 3LCD color performance with cost advantage and win most of the users concerned.