【 Weak current College 】 built digital signage system, you select plasma, LCD or slimline projection module?---Power By 【 China power house network 】

Digital signage applications increasingly broad and universal, and from the airport, station, port traffic information publishing, to shop, business environment of LCD displays the computer image for promotional and advertising information, school education information delivery to business related information publishing and delivery can not be separated from digital signage system. From digital signage display system, select, from the earliest CRT to LCD displays, plasma displays, today launched the slim rear projection. So many options, you select plasma, LCD or slim rear projection display module?, the choice of factors to be considered.
If the display device installation difficulty, display equipment investment and overall costs, with the display unit made of tile wall, using a single monitor, display device of life, how easy is it to a display device maintenance Chen Chen said: LCD display, light weight, thickness of thin, simple installation. , Display device image display quality of good and bad, the length of life of the display device, a display device's perspective, display device input signal compatibility, display equipment screen clarity, display brightness and contrast of the display device and the display device's features are must seriously consider that, if not depending on the application of the environment and the characteristics of the display device for best combination, the final results may be more effective.
In this interview and LCD displays, plasma displays, and a slim rear projection module of leading manufacturers, select digital signage display device needs to be taken into account, to the user's system. LCD and plasma display is easy to install, slim rear projection module slightly difficult
LCD and plasma display panel is a complete display screen, there is no mechanical adjustment requirements. Barco co., Ltd. Beijing Office senior business development manager Chen Chen said: "LCD display, light weight, thickness of thin,easy installation. Plasma, rear projection thickness thick, installation and adjustment of tedious, requiring regular corrections. "United States branch vision digital system company Shanghai Representative Office system engineer Liao Zijun also Chen array have the same view, in his view: LCD and PDP installation simpler easy rear projection module installation and commissioning of the more complex, it needs to debug image of geometric position. Liao Zijun says: LCD and PDP installation easy, the rear projection module installation is more complex. Overall cost, the plasma display than the rear-projection and LCD low
A six-generation LCD line investment basically to achieve 20 ~ 30 billion dollars, a plasma line 10 of investment requires only a few dollars. LCD Plasma relative investment is relatively small. Fujitsu Microelectronics (Shanghai) co., Ltd product engineer Li yadong said: so plasma display investment ratio LCD monitor is small. Then pull the rear projection modules over comparison appears Liao Zijun says: from digital signage system of one-time hardware investments or overall cost, the PDP plasma investment is low, LCD, rear-projection module investment is large. However, Chen Chen views are: plasma and rear projection, less-expensive, large-size LCD Panel is now more expensive.
From the perspective of long-term use, slim rear projection has replaced bulbs, VTRON Chinese company marketing manager Tan anlin is: "slim rear projection module of consumable parts only bulbs, bulb replacement work in one minute to complete, but also for the entire system costs, bulb costs represent only a small part. LCD monitor multiple times replacement backlight, LCD panels, and overall expensive. Plasma display panel in 24 x 7 x 365, uninterrupted application, life is not more than 2 years. "Digital signage system display comes in many forms, when you display a relatively low amount of single screen displays are commonly used, but you need to display large amounts of information, especially when the image is often called multi-screen tiling wall display. As a result of LCD, plasma display, and a slim rear projection module inherent characteristics, cause spell wall display effect great differences. Liao Zijun says: make the tile wall, LCD and PDP will have larger physical slot, and rear projection module physical slot can be less than 1 mm. Tan anlin says: Slim rear projection module of consumable parts only bulbs, for the entire system, the light bulb costs represent only a small part. From the angle of the wall made of tile, Tan anlin on slim rear projection module is a highly respected, she said: "VTRON slim rear projection module mosaic near the" seamless "effect (< 1mm), for the whole wall after stitching the brightness, color consistency has a complete solution. Plasma splicing slot minimum also 3mm above, and ignores the other screen optical splicing. While the LCD monitor is application for stand-alone (non-LCD rear projection module) is not suitable for tile wall. ”
Chen Chen said: there is a seamless mosaic of plasma display 3x2, however, the application of the mosaic, rear projection is still irreplaceable advantage: small slot and low costs. Single screen display, LCD, plasma and rear projection module various ultra-thin has advantages
In digital signage applications, while using a smaller amount, close watched often use a single screen configuration, then the display effect is ultra slim LCD, plasma and rear projection module respective natural effect. They each have their own characteristics. Liao Zijun says: no radiation, like LCD a few spacing is small, and smoother image; PDP high-contrast, video effects; rear projection module a larger size, brightness and resolution are higher.
Tan anlin says: Slim DLP rear projection module using digital technology, you can directly capture digital information, external signal source without-analog (D/A) conversion, direct modulation Imaging. However, plasma andLCD are simulation technology, analog signal interference, there is a distortion. Plasma display contrast is high, the color reproduction is good and wide angle, but easily burned phosphorus, large display area product is expensive; the long-term reliability is poor LCD (from United States Maunsel official laboratory confirmed), 3000 hours of continuous work, it is possible to burn liquid crystal panels. Wu Fu Yue said: plasma display screen display quality is excellent, fast response and rapid pace moving images. LCD and plasma display single life long, slim rear projection moduleExtended life through the replacement bulb
From the perspective of life, LCD, plasma display, and a slim rear projection module of stand-alone life is limited. Liao Zijun says: "the LCD and rear-projection module live longer, PDP life shorter. " However, Chen Chen's view is that:" LCD and plasma life and CRT monitors, rear-projection life limited. " Some authoritative in figures you can see, from stand-alone, LCD monitor long life than plasma displays, plasma displays and slim rear projection module. However, slim rear projection module through the replacement bulb for almost unlimited extension of service life. Tan anlin says: "slim rear projection module core parts DMD chip life up 100,000 hours. United States Maunsel official laboratory confirmed: LCD in 3000 hours of continuous work, it is possible to burn liquid crystal panels; plasma display in 24 x 7 x 365, uninterrupted use, life is not more than 2 years. ”
Li yadong said: "in General, the LCD monitor's life can reach 5 million hours, plasma can also be reached 4 million hours, 8 hours a day using basically in terms of useful life can reach 10 years. But it is limited to the projection lamp service life, basically speaking there are 6000 ~ 10000 hours that were completed in less than two years, you must change the bulb, bulb price is very expensive. ”
Pioneer Electronics (China) investment co., Ltd. Director Minister Wu FuYue said: "plasma display of life about 30,000 hours or more, the concrete life depending on the application form. " LCD and plasma screens almost no maintenance, but the slim rear projection module maintains highly
Large size LCD monitor screen more expensive, the price of plasma screen, projection of imaging devices are not cheap. Such as Chen Chen said: "the key devices are very expensive. ”
If the use of LCD and plasma screens do digital signage display, once after installation, press the Liao Zijun is: "in the LCD and PDP almost no maintenance, rear-projection module maintenance volume is large, need to replace the bulb. " But the Tan anlin views are:" VTRON slim rear projection module with front panel installation, wall mounting, without matching decoration. LCD monitors, plasma display panels are maintained from the rear panel of the debug, and every time you want to remove the unit, the operation is cumbersome. "LCD and plasma displays slot large LCD, plasma display, and a slim rear projection module image display quality setups
In fact, LCD, plasma display, and a slim rear projection module image display quality is great. Generally, Liao Zijun think: LCD graphics display better, PDP video display and rear-projection module between. But for different input signal source, its display quality differentiated. Chen Chen said: "shows the high definition image and dynamic is not too much screen, LCD monitor resolution, color and contrast for the best. Display the normal definition of video with the best plasma price/performance ratio. Whereas the rear projection module, now uses the single-chip DLP and LCD panels for three pieces, single-chip DLP display video as 3 Tablet LCD panels. LCD rear projection image effect is good. "Li yadong said:" to NTSC color coverage as a standard, then the best plasma color degree, Fujitsu plasma can reach 95% of such a standard, while General LCD only can reach 70%. " Wu Fu Yue said: plasma display screen display quality isexcellent, fast response and rapid pace moving images.
From the perspective of a antijamming, Tan anlin says: Slim rear projection module using single-chip DMD DLP technology is all digital, plasma and LCD are simulation technology, analog signal interference, there is a distortion. In addition, the LCD monitor color reproduction of the poor, and playback of dynamic video often appear "Comet Tail" phenomenon, plasma display, and a slim rear projection module without this phenomenon. Plasma display if long time display static images, you will create image retention. LCD and plasma display installation simple good LCD, plasma display, and a slim rear projection modules are up to 160 degrees viewing angle
From the Visual point of view, their opinions. Liao Zijun says General LCD viewing angle is narrow, only 90-120 degrees. Plasma up to 160 degrees above ultra wide angle, rear-projection module with LCD's perspective.
But Tan anlin says: three persons, the LCD monitor displays based on the principle of double refraction, perspective the most unsatisfactory, plasma display, and a slim width perspective projection module, VTRON slim rear projection module to use patent BBAR screen, horizontal/vertical viewing angle of 160 ° can be achieved.
Chen Chen said: LCD and plasma perspective is very wide, Barco's professional LCD LC40 horizontal and vertical viewing angle of up to 170 degrees. Rear-projection from the angle of the screen, is not very satisfactory. Li yadong also said: "for a long time, because the deflection angle of the LCD, LCD is very much of a problem, but as the FUJITSU wide angle technology, LCD and down and left and right angle can reach 160 degrees. ”
Li yadong even said: plasma display screen is because it is the way with electrode glow, the perspective of problem does not exist. Views from the majority view, high quality, professional LCD, plasma display, and a slim rear projection modules are up to 160 degrees viewing angle. LCD, plasmadisplay, and a slim rear projection input signal compatibility is good
LCD monitors, plasma display, and a slim rear projection module signal compatibility is determined by the input circuit, from this point basically speaking there is no difference. At present, PDP and LCD backlight modules are compatible with all leading signal source.
LCD monitors, plasma display, and a slim rear projection modules are generally may enter from PC digital/analog, composite video signal, S-Video signal. Tan anlin says: "VTRON slim rear projection module also has the ring add port may direct a number ofA display unit stitching zoom, it also support HDTV's 1920 × 1080 resolution, you can display 1080p, 1080i, 720p, etc-format high-definition video. Plasma screen HDTV input only provides an interface that also equipped devices such as set-top box. "Slim-rear projection of the screen, high definition, LCD and plasma display lower
The most clear LCD, backlight module Secondly, plasma is the worst. Chen Chen said: LCD monitor and a slim rear projection module pixel can be done very carefully. Tan anlin says: "under conditions of equal size, LCD monitors and thin rear projection module clarity better than plasma screen, mainly because of the relatively large size plasma tube. " Vtron slim rear projection modules splicing technology support (1024 × M) × (768 × N) forms of ultra-high resolution overlay.
Li yadong said: talk about clarity, unquestionable, LCD resolution is quite high, plasma relatively disadvantaged. Rear-projection modules, plasma, emitting the brightest, darkest, LCD
Wu Fu-jump on: plasma display brightness is excellent in low brightness may show more gray shadow. Lee to the East: from the point of view, brightness of the LCD as a passive glow, brightness is limited by its backlight, PDP is active light, brightness is quite good.
Liao Zijun says: the lightest rear projection modules, plasma, LCD darkest. Tan anlin support this assertion, and said: "the LCD is the technology, optical transmission-only 30% efficient. Plasma is self-luminous display technologies; DLP is reflective technology, optical efficiency reaches above 80%, both are better than the LCD technology. ”
However, LCD monitors and plasma display brightness is less impact on the environmental light. Display technology (this table shows the current mainstream several display modes) ultra-thin plasma and rear projection LCD display contrast, lower
Because LCD monitors, plasma display, and a slim rear projection module emitting principle, display contrast different also. Tan anlin says: "the LCD is the technology of optical transmission, only 30% efficient General, contrast enhancement, contrast of the LCD monitor is generally less than 800: 1, in the same light source, the contrast of the LCD monitor is the worst. Plasma display panel plasma tube itself is a good reflector, impossible to achieve true pure black. VTRON slim rear projection module using TI's fourth-generation DLP chip that fully leverages the specular reflection tomography, light efficient reach above 90%, with a patent for ultra-high resolution GUCS screen, contrast up to 1400: 1. "Li to East believes: the contrast of the LCD is much smaller than the plasma. Liao Zijun's summary is: PDP plasma contrast, backlight module Secondly, LCD contrast. Only Chen Chen felt: the best LCD contrast, image is translucent. LCD and PDP display setups, slim rear projection modules adapted to the wide
Li yadong said: if purely from a technical perspective, the plasma of the specification will be stronger than LCD, plasma display contrast ratio can reach 5000: 1, brightness of up to 1200 lumens, color can reach 10.7 billion colors, the color saturation is basically completely close to NTSC, resolution up to 1024 × 1024, fully meet the requirements of current HDTV, overall image effects will be better than LCD, and with the light-emitting efficiency, its power consumption continuous decline, the service life can reach 50000 hours and taking into account the response time of LCD is an irreparable defect, angle is also a considerable period of time will exist. So watch the image quality, plasma is stronger than the LCD. But if you consider the price factor, the 30-inch LCD comparison by following the price advantages, more market, more than 40 inch is the dominant plasma comparison. While the 30-inch and between 40 inch is their contention.
Liao Zijun says: LCD tend to computer image display, PDP display preference for video, rear-projection module tends to large-screen mosaic display.
Tan anlin says: plasma display market early positioning in public display system, but the price and service life has been restricting its massive popularity; LCD monitor does not support 24 x 7 x 365, uninterruptible operation; slim rear projection module integrated their technical superiority, have superior optical performance, perfect viewing results, fast, easy maintenance, is a digital signage system for the best solutions. Respondents who's who Wu Fu Yue
Pioneer Electronics (China) investment co., Ltd., Director General
Tel: 021-64314466
Fax: 021-64314527
Email: iec@intl.pioneer.co.jp Li yadong
Product engineer
Fujitsu Microelectronics (Shanghai) co., Ltd.
Tel: 021-63351560
Email: adams.li@fmc.fujitsu.com Chen Chen
Senior Business Development Manager
Barco co., Ltd. Beijing Office
Tel: 010-65888951 Tan anlin
VTRON Chinese corporate marketing manager
Tel: 020 8605-8557
Fax: 020-8552 8435
Email: tananlin@vtron.com Liao Zijun
United States branch vision digital system company Shanghai Representative Office system engineer
Tel: 021-62787708 (Shanghai Office) 010-65610240 (Beijing Representative Office)
Email: sales-china@christiedigital.com