Remarkable Picture Quality
The True Black HD1 brings Full HD to your home with the native contrast ratio: 15,000:1. The "native" means that it does not rely on an iris mechanism to maximize contrast depending on the average brightness of one scene. This technical slight of hand, employed on other projectors, effectively changes overall luminosity, so that blacks are slightly bleached in bright scenes, while light colours appear duller in dark scenes.
There is neither an iris mechanism nor compromise in the True Black HD1 projector. D-ILA is a mature technology, perfected by JVC, which can reproduce the brightest, most vivid colours simultaneously with the subtlest shadows, down to the deepest, truest blacks. Only D-ILA can reproduce in full the rich image information contained in a high-definition source, be it broadcast or optical disc.
Advanced Technologies
There are number of advanced technologies behind the beautiful picture quality of the True Black HD1 projector.
- First and foremost is the D-ILA device itself, of which there are three in the True Black HD1, and the pulse drive. JVC's original D-ILA (Direct-Drive Image Light Amplifier) technology ensures a natural, rich, flicker-free picture which does not suffer from the sort of colour-breaking phenomenon that can often occur with single-device projectors, especially when there is rapid movement. The result is a smooth picture, like that produced by film, with fine detail from one edge of the screen to the other. And there is also no obvious "screen-door" effect when using D-ILA devices, so the high-definition picture is like that produced by a film projector.
- The new optical engine, with wire-grid polarisers, ensures colours are reproduced with smooth gradations and minimal noise. The resulting display is ideal for movies. Objects that are normally black are shown as true blacks. And, irrespective of brightness, consistent response is assured, allowing the reproduction of a wide range of intermediate colours.
- The large diameter, all-glass FUJINON lens system with 16 elements in 13 groups significantly reduces chromatic aberration and ensures a high-resolution picture, with every point on the screen perfectly in focus. Also, the high-performance 2x zoom lens enables you to enjoy a large and impressive image even in smaller rooms.
- Finally, the VXP video processor generates high-quality output using a combination of advanced digital technologies.
Easy Home Theatre Setup
Setting up a home theatre system may sound daunting, and in the past it may have been. But JVC has incorporated into the design of the True Black HD1 projector several ingenious features that make setup flexible and easy. Take, for example, the lens shift function. Its generous ±80% vertical range means you can install the projector on a table, the floor or the ceiling, and still position the picture just where you want it. The same intelligent projection system offers a ±34% horizontal shift, so you do not have to have the projector directly in front of the screen either.
Installing a projector on the ceiling is often problematic because of the top cooling vents, but JVC has put both air intake and exhaust vents on the front of the unit. You can thus place the True Black HD1 projector right up against a wall, or even a tabletop.
Another thoughtful touch is the position of the access panel for replacing the lamp. This is on the side of the projector, so it's always easy to get to.
User-Friendly Design & Controls
Once installed, the True Black HD1 projector continues to be user-friendly every day - starting with the handy self-illuminating remote control. The buttons light up automatically, making it easy to operate in a dark room. The remote control also includes direct keys to adjust frequently used functions such as contrast and brightness, in addition to video input selection.
A convenient and detailed video adjustment menu allows you to easily adjust the picture to suit the source video and your own preferences. Additionally, the projector is equipped with 2 separate HDMI terminals on the back panel that ensure HDTV signals are transferred without any degradation.
Comparison between conventional projectors and the True Black HD1
The secret behind the exquisite, film-like picture quality with 15,000:1 native contrast ratio lies in the innovative D-ILA device technology, the optical engine and the fact that the True Black HD1 projector does not rely on iris control. Conventional front projectors use an iris control to boost contrast ratio. With such projectors, picture resolution may be excellent, but the picture lacks good contrast. In the diagram below you can see the difference between a conventional projector with iris control and JVC's True Black HD1.
As you can see above, for bright scenes the iris is opened, making peak values brighter, but at the same time blacks are lighter than they should be.
Whereas for dark scenes the iris aperture is reduced, causing blacks to appear darker but at the same time peak values are also darker.
The newly developed 0.7-inch full HD D-ILA device can display peak whites and deep blacks on the same screen as shown in the diagram above.
Newly-developed 0.7-inch Full HD D-ILA device
Conventional D-ILA devices suffer from surface unevenness, minute gaps and irregularities that are unavoidable using normal semiconductor manufacturing processes.
Discontinuities between individual pixel cells or where the pixel cells, are connected with the underlying semiconductor structure, disturb the orientation of the liquid crystals, and the resulting diffraction and other effects lead to stray light. In the manufacture of this newly developed device, technology has been adopted to ensure extreme planarisation; this reduces stray light to an absolute minimum.
Moreover, as a result of employing new liquid crystal materials and orientation technologies, the gap between pixel cells has been optimised, reducing it from the previous 3.2 microns to 2.3 microns, cutting light loss from the liquid crystal layer itself, and significantly improving compensation accuracy. Such new technologies have realised the extremely high device contrast ratio of 20,000:1, and at the same time halved response time from 8msec (Tr+Td) to 4msec.
Professional-standard greyscale performance
JVC's original D-ILA pulse drive produces clear, high-precision gradations without employing error diffusion. High-precision calibration technology enables the faithful reproduction of dark pictures, in which luminance is 10% or less, so that the blacks can still be differentiated, thus resulting in pictures with appreciable texture.
New optical engine with wire-grid polarisers
Using a conventional PBS (Polarising Beam Splitter), comprised of a glass prism with multilayer interference film, optical properties can vary considerably depending on the angle of the incident light beam; this makes it difficult to realise high contrast.
However, the wire-grid design employed for JVC's newly-developed optical engine uses an inorganic reflective polarising plate made from a glass substrate on the surface of which are ultra-fine aluminium ribs. This reduces the amount of stray light reaching the lens to an absolute minimum. The combination of this polariser and the newly-developed D-ILA device increases contrast by a factor of 5.
| Display Size (16:9) | Projection Distance | ||||
|---|---|---|---|---|---|
| Inch | W(mm) | H(mm) | Wide(m) | Tele(m) | |
| 60 | 1328 | 747 | 1.78 | 3.63 | |
| 70 | 1549 | 872 | 2.09 | 4.24 | |
| 80 | 1771 | 996 | 2.40 | 4.86 | |
| 90 | 1992 | 1121 | 2.71 | 5.47 | |
| 100 | 2214 | 1245 | 3.01 | 6.08 | |
| 110 | 2435 | 1370 | 3.32 | 6.70 | |
| 120 | 2656 | 1494 | 3.63 | 7.31 | |
| 130 | 2878 | 1619 | 3.93 | 7.93 | |
| 140 | 3099 | 1743 | 4.24 | 8.54 | |
| 150 | 3320 | 1868 | 4.55 | 9.16 | |
| 160 | 3542 | 1992 | 4.86 | 9.77 | |
| 170 | 3763 | 2117 | 5.16 | 10.38 | |
| 180 | 3984 | 2241 | 5.47 | 11.00 | |
| 190 | 4206 | 2366 | 5.78 | 11.61 | |
| 200 | 4427 | 2490 | 6.08 | 12.23 | |
Projector Dimensions
