Creating a “go-to” document for measuring projector display system performance is the reason the Society for Information Display, an industry organization, issued a display performance standard in May.
Prior to SID’s “Information Display Measurement Standard” there were standards covering various aspects of display systems including those for contrast ratio and color saturation, color purity and brightness, Doug Bragdon, SID’s business manager, tells Government Video. But “there wasn’t a commonly used methodology to measuring display performance,” he said.
The lack of such a standard prompted the industry to form SID’s International Committee for Display Metrology and develop the IDMS, Bragdon said.
The IDMS is designed to help evaluate displays by providing many measurements, techniques for subjective evaluation and appendices with helpful references, according to SID. It covers 140 display measurements and is intended to include nearly every display technology for multiple user types, from display manufacturers to consumers. The document is to provide the standard “to as wide of an audience as possible to help establish the techniques within the document as the universal choice for display measurements.”
“The IDMS is the first standard from the ICDM and SID,” said Joe Miseli, ICDM chair. “It is a defining work for evaluating displays and is the most comprehensive display measurement and metrology standard yet produced.” He said the standard “provides a full set of common and more specialized display measurement procedures to characterize display performance.”
BenQ’s LW61ST While future display systems will likely meet IDMS performance levels, there are display systems available now that meet individuals users’ performance needs. Among those projectors are:
BenQ USA’s LW61ST is a 720P laser projector that does not use a lamp in the traditional sense. There is no mercury; and because it does not use a lamp, the projector uses 33 percent less power, said Walter Pearson, an education consultant with BenQ. The LW621ST provides an incredible amount of control over the light that the projector produces, Pearson said. It has a contrast ratio of 80,000:1, so the projector provides very high quality, according to Pearson.
The LW61ST is a short-throw projector; for typical screens, it will be mounted about one foot back for every two feet of screen width, a lot closer to the screen than most projectors, Pearson said. The LW61ST implements new technology that BenQ has developed including use of an iPad rather than a laptop computer to create a wireless or direct connection to the projector to transmit a presentation, he said.
CANON USA Inc.
Canon USA’s REALiS SX6000 Canon USA Inc.’s REALiS WX6000 and the REALiS SX6000 liquid crystal on silicon (LCOS) projectors provide high image quality for video and still images, said Chuck Westfall, Canon’s technical advisor. They now provide
up to 6,000 lumens, the brightest Canon ever produced, he said. That extends versatility for ambient light levels.
The WX6000 produces 1440 x 900 resolution employing Canon’s AISYS-enhanced LCOS technology and interchangeable Canon lenses, with the aim of delivering clear and rich images. It also offers 5,700 lumens of brightness, ease of installation and maintenance and powered lens shift, which can be operated in both vertical and horizontal directions. A wired remote option allows the remote use of the REALiS WX6000 in situations where obstacles block a direct line of sight between the operator and projector.
The SX6000 produces 1400 x 1050 resolution, also using AISYS-enhanced LCOS technology and interchangeable Canon lenses. This model offers 6,000 lumens of brightness and powered lens shift. It too offers the wired remote option. The projectors are provided without lenses; users pick the best ones for the application, Westfall said. There are three to choose from: a standard zoom lens, a throw zoom lens if the activity is in a large room and a short-throw lens if the presentation is taking place in a tight space, he said.
Canon USA’s REALiS WX6000 Canon says the REALiS WX6000 and SX6000 provide government agencies an advantage in that the LCOS diminishes the “screen-door effect” of pixel gaps on the screen image. “There are almost no gaps at all between the pixels on the screen image,” Westfall said. “The REALiS’ projector images look like a true photograph or video.”
CASIO AMERICA INC.
Casio America Inc.’s new XJ-H2650 pro model projector produces 3,500 lumens and can display 3D content from a 3D computer, said Christine Azzolino, the company’s public relations representative. The XJ-H2650 has HDMI video and computer inputs, the capability to have an interactive whiteboard and local area network (LAN) wireless capability, she said.
Casio America Inc.’s XJ-H2650 The XJ-H2650 also provides a mercury-free, laser and LED hybrid light source that delivers up to 4,000 lumens. “This projector does not use a mercury lamp, making it environmentally friendly,” Azzolino said. The projector’s Intelligent Brightness Control function (Eco Mode) senses surrounding light levels and adjusts projection brightness automatically as required for efficient low-power operation, when the “Eco Mode” setting is set to “On Auto.”
The projector’s 3D image projection produces a 3D image signal (60 hertz/120 hertz field sequential protocol) via one of three input sources including analog red, green and blue (RGB) light, composite video, S-video, component video and HDMI. The remote controller can also be used as a pointer during projection, Casio says.
Christie’s LWU501i Christie offers the LX41 liquid crystal display (LCD) and LWU501i projectors, said Miles Donovan, a sales and support specialist. The LX41 LCD has a fixed, 1.7 manual zoom lens and wireless presentation, he said. It reaches 4,000 lumens and has extended graphics array or XGA resolution.
The projector is useful for agency conference audiovisual and higher education, or in any application needing a full-featured, XGA projector in the 4,000 lumens range. This projector is designed for network capabilities and has useful plug and play features for third-party integration. The LX41 LCD also has 3D Keystone geometry correction technology with “simple” curved screen capabilities, a multi-PC display option for collaborative presentation display (up to four PCs), high-resolution HD content capabilities and LAN networking for asset management, monitoring and content delivery.
Christie’s LX41 The LWU501i is one of six models built on the same platform, offering brightness of up to 6,000 lumens and XGA, WXGA and WUXGA extended graphics resolutions, according to Andrea Sangster, an applied marketing manager for Christie. The LWU501i is a 3LCD projector providing 5,000 ANSI lumens at 3,000:1 contrast ratio for “bold, detailed images.” The optional lens suite includes a selection of zoom lenses with repeatable position recall that
make the Christie LWU501i suitable for small- to medium-sized applications and wide screens.
DIGITAL PROJECTION INTERNATIONAL
Digital Projection International offers its HIGHlite Cine 660 projector, which is a compact, three-chip, DLP projector. The HIGHlite Cine 660 has “warp and blend capabilities” and produces 8,000 lumens and a 2001 contrast ratio, said Phil Laney, director of simulation and visualization. The projector “can be used for many different types of applications, from visualization to simulations, to conference rooms because of its brightness,” he said.
Digital Projection International’s HIGHlite 660 For venues using curved screens, HIGHlite 660 models provide the user with advanced warp and blend capabilities, including the ability to make extensive geometric warp correction for screens with complex geometry, DPI said. In addition, high lumen output and rich contrast allow HIGHlite 660 projectors to “thrive” on screens 12 feet wide and beyond, as well as in outdoor spaces, media rooms and other unconventional locations, according to DPI.
HIGHlite 660 displays are constructed from rugged materials to support use in widely varying environments. DPI says carefully designed air filtration ensures protection of internal components, while thermal management has been engineered to allow the HIGHlite 660’s to respond to rigorous projection applications while minimizing audible noise.
The advantage of the HIGHlite 660 to government audiovisual staff is the 8,000 lumens the projector produces, Laney said. “It provides plenty of brightness for almost any type of venue, it also provide the ability to use a higher-gain screen and maybe get better contrast, which is important if the user wants to pick up small contrast in the screen,” he said.