The projector is moving into thousands of homes, but how to select a projector suitable for itself will require an understanding of the projector's technical principles, and today's mini-editor will take you into the projector's workings and see what the projector's workings are. The technological axes of the bottom projector's principles and talk about projector display techniques。
1. Technical principles for projectors
- crt
The projector using this method has the name of the "old" projector and its principles are the same as those of the monitor. It amplifies the input video signals of the external device, projecting them through lenses on the screen, which, according to the number of crts, is divided into “one tube” and “three tubes”。
Three crts of r (red), g (green) and b (blue) were projected to the screen in a three-barrel crt projection, thus allowing easy focus and clear presentation. The problem of setting the focal length adjustment is also a problem for this "old" projector。
· lcd
The lcd projector, which was launched in 1988, is small in size compared to the crt projector, which is easily connected to computers and is widely used in a variety of industries。
The lcd projector is divided into “one-sided” and “triple-sided”, and the lcd projection is by allowing light-source lamps to penetrate liquid crystals to capture images。
Three-sided (3lcd) uses a colour mirror to separate light from the light source into rgb (redgreenbrue iii) and then combines it with a prism into a single image projected to the screen. It is popularly said that it uses the photoelectric effects of liquid crystals to influence the light or reflectivity that eventually emit, thereby producing images with different levels of greyscale and colour。
:: dlp
Let's start with the meaning of dlp, which is a digital light processor. The dlp projector uses the dmd digital microreflector as a device for photovalve imaging, which is highlighted by the very high-speed reflection of the dmd surface mosaic microscope。
Dlp's presentation is based on the rotation of light from the light source light through the wheel and reflecting on the dmd (digital micromirrordevice, digital microscope component) chip. The light is reflected through very small mirrors, mixed in colour, generated. Dlp projectors, supported by these technologies, have the advantages of high clarity, long service life, rapid response and are therefore relatively expensive. In recent years, it has also become the focus of consumer attention in the family cinema market。
• lcos
Lcos (liquid crystal on silicon, silicon lactation) projector, which has the advantage of both lcd and dlp projectors, with high contrasts and natural colours。
Summary:
The projectors in paragraph 4 above are shown as technologies currently under discussion in the market, of which the crt technology has largely been phased out, and the current use of the lcos on the projectors is not widespread and the lcos wind has not yet been blown, so projectors in the projectors market are used mainly by dlp and lcd。
As can be seen from three scenarios of crt, dlp, and lc, the dlp technology is based on the principle that it is more common to understand and apply to more scenes, where the technology is more advanced, where traditional light sources are converted to digital light sources, and where the final quality is given a better performance。
In addition to some of the projector techniques described above, other technologies have emerged in the projector industry, such as the alpd laser technology, which uses laser plus rare-earth light materials to support the colour area coverage of laser television, which in theory can be as high as 90 per cent of the human eye range, an increase of one slot over the current led-highest 62 per cent colour area coverage。
2. Projector recommendations
When bee f3
When bef3 uses dlp projector display technology. It has a 2050 ansi brightness and uses a 0. 47 ' dmd chip to support 1080 p-high-clean to high 4k video. On this basis, when the bef3 also has a 4k colour engine, pro, hdr10 high-dynamic decodering technology, the projector projector projectors will project images that are sharper, darker, more detailed and more visible, so that you can open the film and see a pure picture without shaking。
The two advantages of this projection f3 are different from those of other projectors. The first is its own domberos system, and the second is its dual usb 3. 0 connection, with faster transmission。
To start with the double usb3. 0 interface, the mini-editor looks at the products of the mainstream projector brand in the market, and when the bei project f3 is the only one with a double usb. 3. 0 interface that connects hard disks, it allows you to have faster transmissions, 5. 0 gbps (500mb/s), plus a new generation of 120 hz memc campaign compensation and high-dynamic decodering techniques, and creates a private 4k cinema。
Its self-researched domberos system, which has many personal and human features. It can customise the desktop, according to your operational preferences, to give you an exclusive custom interface. And it's got a close + distant voice that frees you from manual manipulation and calls out instructions, and you can enter the corresponding interface。
The most critical point for many friends to buy a projector is to enjoy a much better video series on screen, using years of large-screen eco-droping, when bess integrates a full-of-the-world video resource, over 7 million + hours of video time, combined with a multi-speed play to make your play more efficient。
And finally, i hope that the article will help you understand the technical principles of the projector, and if there's anything else you don't know, you can leave a message in the comment area!
