Around-the-Clock Communicators with Streamlined Style, Versatile Installation
Sharp's PN-U423 42" Professional Edge Lit LED Backlight Digital Signage Display
Sharp’s lineup has expanded to include PN-U553/U473/U423 – three professional LED displays that clearly have what it takes to get your message across. Designed for maximum impact, built for 24/7 durability, and sized for flexible installation, these 55" (54.7" diagonal) , 47" (47" diagonal), and 42" (42" diagonal)-inch displays represent a dynamic new breed of indoor digital signage solutions. Thin and lightweight enough to ensure an easy fit in stores, offices, and public spaces, PN-U553/U473/U423 displays boast the outstanding image quality needed to deliver truly compelling signage.

Excellent Image Quality
A brightness of 700cd/m² (PN-U553/U473) or 500cd/m² (PN-U423) supports these LED displays in their digital signage duties. And PN-U553/U473/U423 displays boast 1,920 (H) x 1,080 (V)-pixel full-HD resolution to help ensure that none of the detail or visual impact is lost. Thanks to full-HD resolution, everything from fine text to intricate graphics is stunningly crisp and clear.
Thin, Lightweight Design
PN-U553/U473/U423 displays owe their exceptionally thin profiles to edge-lit LED backlighting, where LED elements are located at the edges of the panel. Streamlined for a pleasing appearance and minimal protruding parts, these displays measure just over 2 inches at their thickest point and weigh only about 35 - 55 lbs, making for easy and flexible placement in offices, public spaces, stores, and other commercial establishments. The stylishly thin profiles also enable attractive wall mounting.
Energy Efficiency
Edge-Lit LED Backlighting on PN-U553/U473/U423 displays helps ensure reliable performance with low power consumption. In fact, PN-U553/U473/423 displays consume significantly less energy than conventional CCFL-backlight displays.
Reliability & Durability
24/7 Operation
Built solid, PN-U553/U473/U423 displays are ideal for use in demanding professional applications that may require around-the-clock operation seven days a week.
Power on Delay
The Power on Delay function allows a time delay between the startup of each display in multi-panel installations. This reduces the load placed on the power supply when a number of displays are turned on at the same time.
Fanless Architecture
Fanless architecture maintains airfiow and dissipates heat without the use of mechanical air-ventilation fans, which can attract dust and create noise. This fanless design also simplifies display maintenance.
Built-In Temperature Sensor
Should the temperature inside a display rise, a built-in sensor will detect it, and the monitor will automatically lower the brightness level of its backlight system.
Image Functions
Mirror Display Mode (Daisy Chain)*
With Mirror Display mode, the same image can be displayed on a daisy chain of PN-U553/U473/U423 monitors to create a powerful impact of visual repetition.
*Via a DVI-D connection.
Enlarge (Zoom) Display Mode
Multiple monitors can be grouped together to display one enlarged image, thanks to Enlarge (Zoom) Display mode, which corrects the framing of that image to eliminate misalignment between monitors.
User-Friendly Design
Choice of Installation Mode
PN-U553/U473/U423 displays offer a choice of landscape or portrait installation, allowing customers to select the mode that best suits their display content and application. While portrait installation offers the look and impact of a poster, landscape installation puts wide images on vivid display.
Built-In Speakers
Ideal for conveying audio information and playing location-appropriate background music, PN-U553/U473/U423 displays feature built-in 10W + 10W rear speakers that eliminate the need for external speakers and ensure a stylishly streamlined profile.
Expanded Connectivity
A comprehensive range of input/output terminals, including the DisplayPort™ interface, comes as standard on PN-U553/U473/U423 displays to give customers a variety of connection possibilities.
Display Management
ID Setting
Thanks to an RS-232C interface, PN-U553/U473/U423 displays* can be easily controlled and monitored from a central location via a PC. Each monitor can be assigned an individual ID code to specify when remotely turning that unit on or off, changing its input, or making various screen adjustments and settings.
*PN-U553/U473/U423 monitors can be connected together in a daisy chain
configuration.