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LARGE IMAGE TECHNOLOGY
PROJECTION VS VIDEO WALL VS DIRECT-LED
Which technology is best for my application?
Large scale imaging continues to be an important tool for busi- ness communications and the available solutions are more extensive than ever. Uses for video display technology continues to expand between presentation use in conference rooms, digital signage/marketing, mission critical, entertainment and often a combination. With this said, the options available to your business can be as confusing as they are plentiful so the following guide will help compare and contrast these technologies.
TWO-PIECE PROJECTION
Display type utilizing a video projector and separate screen surface.
Size Range: 92” up to 400”
Typical Cost: $150 - $300 per sq. ft.
Common Applications
• Large Conference Rooms
• Auditoriums
• Training & Simulation
• Classrooms
Advantages
• Typically, the most economical solution by size
• Infinite flexibility in image size
• Many options as far as brand,
performance and function
• Usually very simple to setup and use
• High reliability and minimal maintenance
with laser units
LCD VIDEO WALL
Display type utilizing a tiled array of LCD monitors to create a large display surface. Size Range: 110” to 275”
Typical Cost: $300 - $600 per sq. ft.
Common Applications
• Corporate Lobby
• Large Common Area
• Training & Simulation • Command & Control
Advantages
• Moderate initial cost with minimal maintenance
• Vibrant images in most lighting conditions
• Broad color gamut produces accurate lifelike imaging
• Generally, a long lifespan of 50K hours at 24/7 operation
• Can be used for multiple window applications with video wall processing
equipment
Considerations
• Install requirements for ADA compliancy usually entail in-wall recess and reinforcement
• Monitor bezel is visible although ultra-narrow 1-3mm options are available
• Often require color calibration for image uniformity across multiple monitors
DIRECT LED
Display type comprised of thousands of LED diodes on a series of glass modules. Size Range: 130” and up
Typical Cost: $1,000 - $6,500 per sq. ft.
Common Applications
• Any Public Viewing Areas • High-end Board Rooms
• Training & Simulation
• Digital Signage
Considerations
• Heavily impacted by ambient lighting in the environment
• Most installs are front projection requiring clear line of site
• Limited option for high-output 4K applications
• Requires very high-lumen count to achieve similar brightness as video monitors
• Only able to produce single large image w/o additional equipment
Advantages
• Intense brightness, usually 2-5 times that of other technologies
• Easily viewable in all lighting conditions
• Seamless, bezel-free design
• Long, usable life of 100K hours at 24/7
operation
• Design flexibility allows for virtually any
size or shape
Considerations
• Fine pixel pitches (1.5mm or less) are expensive to outrageous
• May require considerable engineering for structure, power and heat dissipation
• Requires specialized tools and mounting equipment to install
• Difficult to reduce brightness below 500 nits making it unsuitable for dark room install
• Off-angle viewing can impact brightness and color accuracy
8 | EPA CATALOG
www.epaaudio.com | 763-477-6931
* Typical equipment-only cost for 150” diagonal image (68 ft.), 16:9 aspect ratio. Specialized equipment and installation labor/configuration are additional.