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1,000 lumen brightness with three step aperture- Thanks to a new optical system combined with a highly efficient lamp, a brightness of 1,000 lumens has been achieved. This allows viewing in environments where there may be some ambient light, and for a wide variety of screen sizes. JVC has added a 3-step Aperture Brightness Control that allows users to achieve lower brightness levels to adjust for varying conditions. The Aperture Brightness Control also serves to further enhance the native contrast ratio.
High Native Contrast Ratio—up to 25,000:1- Native Contrast ratio is the intrinsic ability of the projector to show the complete range of image contrast simultaneously. D-ILA devices inherently have a very high contrast ratio—one reason why JVC projectors have consistently been able to reproduce such high contrast scenes. In the DLA-HD250PRO, JVC changed the structural design of the optical section from a conventional L-shape to a straight configuration helped to reduce light leakage. The enhanced wire grid optical engine dramatically improves the precision of light polarization, helping to prevent light spilling onto the projection lens. These new technologies combined with the 3-step Aperture Brightness Control virtually eliminate unwanted light that reduces contrast.
Full 1920 x 1080 0.7-in D-ILA devices (x 3)- D-ILA™ is a proprietary JVC technology based on Liquid Crystal on Silicon. JVC has been able to achieve a significant reduction in stray light at the chip level caused by phenomena such as the dispersion and diffraction of reflected light. JVC succeeded in decreasing orientation irregularities by reducing the gaps between pixels, adopting improved liquid crystals and other innovative technologies.
New compact chassis, automatic lens cover- The chassis in the DLA-HD250PRO has been designed to give it a sleek new look with connections on the left side rather that on the back. Its matte black cabinet looks great in any upscale home theater, and it's much quieter than previous models--around 19dB. A unique automatic lens cover opens and closes with power on/off to protect against dust, so even if the projector is installed up on the ceiling, you're assured of easy, trouble-free operation via the remote controller.
High-Performance 2x motorized zoom lens- The DLA-HD250PRO is equipped with a 17 element lens that uses ED (extra low dispersion) glass, producing very minimal chromatic aberration. The lens has a motorized focus and 2x zoom that can be controlled from the wireless remote. New motor driven lens offsets provide a wide range of positioning options. An ±80% vertical offset will allow it to be mounted above the top of the screen without inverting the projector. A ±34% horizontal lens shift accommodates a wide range of installation irregularities. You could, for instance, install the projector in a wall unit or on a shelf at the rear of the room, and not necessarily centered on the screen. Alignment to the screen can be easily accomplished using the remote control.
HQV processor- The DLA-HD250PRO uses a new HQV Reon-VX video processor developed by Silicon Optix to ensure excellent image reproduction with precision I/P conversion and scaling. This is true 10 bit 4:4:4 processing that removes any jaggies or stair stepping artifacts without blurring the image. Per pixel adaptave noise reduction detects and reduces analog and MPEG noise—particularly mosquito and block noise generated in more highly compressed sources such as cable and satellite. Pixel-by-pixel detail enhancement can actually make many standard definition DVDs look like high def. This is seen in images with blades of grass, textures on clothing and wrinkles on faces.
Four-field motion adaptive deinterlacing- Deinterlacing is very important since a significant amount of programming is distributed in the 1080 interlace format. Interlace was fine back in the days of CRT devices, but with microdisplay products, the signal must be converted into progressive. The quality of the deinterlacer has a big impact on the final picture quality. The DLA-HD250PRO features a deinterlacer that looks at each individual pixel in a 4 field sequence. There's no loss of resolution as with conventional deinterlacers.
Customized on-screen gamma control-
Manual adjustment of the gamma curve is possible via an on-screen display, allowing the viewer to adjust projector luminance levels by either increasing contrast in scenes that are too dark or dimming washed-out scenes to ensure precise brightness levels suited to individual preferences. Up to three settings can be adjusted and stored for future use.
Highly Accurate Color Filters reproduce outstandingly vivid colors- JVC uses newly designed filters to extract red, blue, and green colors with extremely high purity. This suppresses excessive light frequency bands that prevent color purity, broadening the red color space. Thanks to the outstanding color rendition range, which exceeds approximately 170% of the SMPTE HDTV standards, the color reproduction of minute differences in red colors seen in plants or nature such as in sunsets or roses combines with expression of colors closer to the real colors to create truly superb images.
