LCD Display Monitors Technology Showcase
Dec 15, 2010 12:00 PM, By Bennett Liles
With HDMI (HDCP), component, and PC video signal formats automatically scaling to WUXGA, the 47in. M4715CCBA commercial LCD display from LG Electronics has a range of installation options including portrait and landscape alignment. The 500 cd/m² brightness, 178-degree viewing angle, and 1.06 billion colors can assure legibility of smaller print and clear graphics in brightly lit areas. The unit sports a 36mm bezel, runs on 300W, and its minimum 50,000-hour mean time between failures spec is a good pro standard for high-uptime applications. It also features RS-232 serial, RGB, and composite video loop-through connections for multimonitor displays. Other features include WAN control; scheduling; instant messaging; self-diagnosis for temp, fan, and lamp functions; alarm messaging; and networked software upgrades. The M4715CCBA also has two audio inputs, a PC sound input, and an external speaker output.
For a maximum of display with a minimum of frame, Mitsubishi offers the 65in. diagonal MDT651S LCD monitor with a 30.4mm bezel for portrait or landscape orientation in digital signage applications. This model includes HDMI, DVI-D, DisplayPort, RGBHV in/out on BNC connectors, S-Video, 15-pin in/out, Cat-5 in/out, and composite video input. Control is through either RS-232 D-sub in/out or LAN. The chassis has front and rear ambient light sensors, and the display is native 1920x1080 with 700 cd/m² brightness and a 2500:1 contrast ratio. Mini and RCA audio inputs and stereo RCA audio outputs handle sound sources, and there are external loudspeaker terminals with an optional SPI-651S or SP-521S loudspeaker. The display's backlight is rated for up to 50,000 hours, the unit's power consumption is 450W, and it weighs in at 104.9lbs.
The NEC X462UN is especially well-suited for videowall installations with a capability of being deployed in a matrix up to 10x10 with a screen-to-screen distance of only 7.3mm. The unit shows 1366x768 native resolution, a 3000:1 contrast ratio, and a maximum 700 cd/m² brightness. Ethernet connectivity enables diagnostic features including automated email notification, and the monitor can be scheduled to power up or down on its own internal clock. RS-232 serial control can be daisy-chained through all units on the wall, and identification can be set for individual units or groups. Optional accessories include the Remote/Ambient Control Kit, Overframe Kit, Display Wall Calibrator Color Calibration Kit, stand, wall mount, single-board computer, external PC, IPTV tuner, DVI daisy-chain module, and internal HD-SDI card.
For high-uptime applications in digital signage, the TH-47LF20U 47in. LCD monitor from Panasonic combines features such as 700 cd/m² brightness and 1000:1 contrast ratio with an assortment of inputs including a 15-pin D-sub for PC signals, two HDMI inputs, DVI-D, component on BNC, composite, and S-Video. RS-232 control is connected on a 9-pin D-sub while the screen provides 1920x1080 resolution and 9-millisecond response time. Cooling is fanless, and there is a control button to lock volume and other settings. This series of monitors has added internal speakers that are cleanly integrated into the chassis with no protrusions for their combined 10W audio output, and the 18mm bezel suits videowall installations. The unit weighs slightly more than 49lbs. and average power consumption is 300W. There is an optional pedestal, the TYSTLF20.
A 1920x1080 screen resolution and an enhanced zoom feature supporting tiled matrix applications make the Philips BDL5231V 52in. LCD monitor especially well-suited for videowall and digital signage applications. The multimonitor capability extends to five displays with tiling capability to form 25 images along with serial control in and out on RS-232 ports. Assisting the effect is the thin 26.4mm bezel. The 700 cd/m² brightness and 4000:1 contrast ratio allow good readability in brightly lit areas. Input signal versatility includes VGA in and out, DVI-D, HDMI, component, composite, and S-Video. External speaker ports, internal speakers, and RCA audio outputs handle sound, and there is a smart insert in the back cover to house an onboard PC. The 234W power consumption drops to less than 1W in standby mode.
The Planar Systems ep46L edge-lit LED LCD display shows off a wide range of video inputs including VGA, two HDMI, DVI-D, DisplayPort, composite, component, and S-Video to suit any installation scenario for digital signage, and it can scan in either landscape or portrait modes. The 46in. diagonal screen has a maximum brightness of 450 cd/m², and with a contrast ratio of 4000:1 the content can be clearly seen in locations with rather high levels of ambient lighting. The ambient backlight sensor aids in automatically adjusting for these conditions, and the unit is designed for maximum uptime in 24/7 operation. Audio connections include stereo mini for PC and RCA jacks for video sources as well as RCA audio outputs. Control can be handled through RS-232 on a 9-pin D-sub or over LAN. Maximum power consumption is 185W, and the unit weighs 51lbs.
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