Seamless Ultra-Fine Pitch LED Video Walls

Introduction: What Is DirectView LED Technology?

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Table of Contents

Top 3 Trends in Conference Rooms 2

DirectView LED Fundamentals

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Comparing LED to Other Technologies

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What to Consider

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Summary

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Additional Information

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Examples

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IntroductionDirect View LCD Video Wall Displays are the

next generation of indoor large format displays

that feature incredible image quality in a

seamless, bezel free design. Narrow pixel pitch

LED video wall displays use an array of light-

emitting diodes, or LED’s, as pixels for a video

display. The seamless design adapts to nearly

any size area and configuration, which makes it

an excellent choice for many environments

including control rooms, conference and board

rooms, corporate lobbies, universities and

museums, retail and public digital signage.

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Advantages of Direct View LED Video Walls

Why are customers upgrading to Direct

View LED Video Walls?

Seamless design means no bezels

Size and shape of the video wall can be designed to

fit nearly any size space or indoor environment

Uniform color across the video wall, incredible

color saturation and brightness creates jaw-

dropping images and video

Great viewing angles for larger audiences and

longer viewing time for public displays with heavy

foot traffic

Introduction: Advantages of LED Video Walls

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Question: What comprises each pixel in a Ultra-Fine Pitch LED display?

Answer: Each LED contains: SMD (Surface Mount Device) LED SMD is a package containing a Red,

a Green and a Blue LED

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Introduction: Direct View LED 101

SMD LEDs(Surface Mount Device)

Each SMD LED = 1 Pixel

RGB (Red, Green, Blue) Die

Single SMD LED

Question: What is the name for Direct View LED Printed Circuit Board (PCB) with SMD LED’s mounted on it?

Answer: A Tile or Module

Question: What is the name for a Direct View LED unit comprised of multiple LED modules and including housing, driver board, video input board and power supply?

Answer: A Cabinet

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Introduction: Direct View LED 101

LED Tile or PCB (Printed Circuit Board)

Cabinet

Question: What term is used to describe the pixel density of a Direct View LED video wall?

Answer: Pitch Pitch = Distance in milimeters between centers of

each SMD LED (or pixel) So P2.0 LED display = 2mm Pitch = 2 milimeters

between the centers of each pixel

Question: What pitches are considered Ultra-Fine Pitch?

Answer: Ranges from 3mm and smaller

Note: There are no industry standards and resolutions for Ultra-Fine Pitch Direct View LED tiles and cabinets. All manufacturers have different tile sizes and resolutions, as well as different cabinet sizes and resolutions. The maximum pitch considered narrow pitch or fine pitch continues to decline.

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Introduction: Direct View LED 101

Pitch = Distance between center for Pixels in mm

Question: How do you estimate minimum viewing distance for a particular pitch?

Answer: Depends who you ask Some vendors understate this distance.

Divide by 2 rule:4.0 mm pitch / 2 = 2 m or 6.5 ft1.5 mm / 2 = .75 m or 2.5 ft

Retina distance is the purist’s answer. Distance at which person with 20/20 vision does NOT see pixels. 4.0 mm = 45 ft or 15 m1.5 mm = 17 ft or 5.6 m

True answer depends on content, application, personal perception (and budget!)

Many consider the rule of 10:4 mm x 10 = 40 ft / 13.3 m viewing distance1.5 mm x 10 = 15 ft / 5 m viewing distance

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Introduction: Direct View LED 101

Indoor Video Wall Technology Comparison

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Comparing Technologies

• Very small bezel (<1mm)• Highly reliable• High pixel density• Best static image

performance• Low brightness• 12-40” deep• Off-axis viewing

compromises• Higher cost

• Good value/lower cost• High brightness• Good off-axis viewing• High pixel density• Best for touch interactivity• 3.6” to 8” installed depth • Good but lower lifetime• Small but prominent bezel

(3.7mm, moving to 1.4mm)• Less saturated colors

• No bezel (seamless)• Very uniform• Very good viewing angles• High brightness• Long life• Depth varies, rear access

common• Lower pixel density• High cost for increased

pixel density

Rear Projection DLP Ultra Narrow Bezel LCD Direct View LED

Considerations When Planning & Designing LED Video Wall Displays

When considering LED Direct View technology for video

wall applications, there are three key factors:

The first is Pixel Density which can affect viewing distance

and image quality. The smaller the pixel pitch and tighter

pixel density, the better the image will look at close

distances.

Which brings us to the second key factor, Viewing Distance.

It is important to know the shortest distance from the

viewer to the video display so your designer or AV

integrator can select the best pixel pitch and components

for the system that will produce optimal image quality.

The third factor is Cost Per Meter2. There are many ways to

calculate the cost of an LED video wall. Especially with so

many different vendors and non standard tile and cabinet

sizes. Always make sure to calculate the actual cost per

meter2.

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Efficient and Easy Installation & Service

Other factors to consider are system installation and service costs. Direct View LED video wall cabinet mounting brackets should provide multiple axis adjustment points that fine tune each display for a smooth, seamless appearance. Also front service access reduces additional installation costs for additional wall framing construction.

Also consider an off-board electronic architecture that moves the system power supplies, controllers, and media players away from the video wall display. This reduces the need to mount electronic hardware behind the display, which dramatically reduces fan noise and heat at the display. This also provides easy access for service and maintenance to the electronic components, which helps keep service and maintenance at a minimum. In addition, off-board electronics allows for redundant power supply , video source and cabling that ensures uninterrupted system operation.

LED video wall cabinets come in different sizes. A larger cabinet, like a 54” diagonal, allows for better alignment and faster installation since there are fewer factory aligned panels to install.

Other Considerations

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Examples

Companies around the world have made

innovative use of Planar and Leyard display

technologies to communicate more

effectively and reach audiences with brilliant,

rich colors and crisp imagery. Here are some

examples of installations based on high-

resolution displays and video walls. See

more case studies showcasing successful

Planar and Leyard projects at

casestudies.planar.com.

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Indoor Applications & Environments

Control Room

Broadcast

Public Venues

Retail

Corporate

Museums

Education

Hospitality

Gaming

Sports Venues

Other Considerations

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Summary Direct View LED Video Walls are increasing in

popularity for control rooms, digital signage

applications, and any space where there is a need

to communicate with high visibility and impact.

The market leading Leyard® TVH™ and Leyard

TW™ Series or the Planar® DirectLight™ LED Video

Wall System family can be optimized for a wide

range of indoor environments including well-lit

public spaces and corporate lobbies, as well as

light-controlled conference rooms, auditoriums

and control rooms.

Moreover, Planar and Leyard LED video walls are

suitable for demanding 24x7 indoor applications -

with an architecture designed to make

installation and service faster, easier and more

precise.

Additional InformationLeyard Optoelectronic Co., Ltd was founded in 1995, is headquartered in Beijing, China and is traded on the Shenzhen Stock Exchange (stock code: 300296).

Leyard is a global leader in the design, production, distribution, and service of digital displays, video walls, and visualization products worldwide. Leyard has gained significant market share in fine pitch LED and offers indoor, outdoor, fixed, and creative displays, as well as other ancillary and lighting solutions for the urban environment. Used in various applications, such as broadcast, sports arenas, stadiums, advertisement networks, retail digital signage, control rooms, exhibitions, large scale events, and digital cultural experiences.For more information, visit www.leyard.com.