The Wizardry Behind LED Display Pixel Pitch – Small Pitch Comparison

The led-light displays or visuals that we tend to see all around us these days are incredibly mesmerising and equipped with cutting edge LED display pixel pitch technology. Therefore, it would not be an exaggeration if one was to say that ‘led lights have practically revolutionized visuals from every perspective imaginable’. Generation Y (who is just happen to be the biggest consumer group on the planet currently) seem to be as intrigued with led lights just as we from generation X were intrigued with Led Zeppelin or the Doors.

 

 

COMPARE AND SEE THE DIFFERENCE BETWEEN

OUR SMALL PITCH

COMPARE AND SEE THE DIFFERENCE BETWEEN

PITCH 1.5, 2.0 and 3.0

COMPARE AND SEE THE DIFFERENCE BETWEEN

OUR PITCH 0.7, 0.9 and 1.1

The reason as to why Generation X never seem to pay any mind to these fanciful blinkers is because the first light emitting diode was created in 1962 (red light) and in 1972 the yellow version was out and the rest, as they say, was history. Speaking of history, doesn’t all the hustle and bustle about led light make you want to ask someone as to why they have become as popular as they are, but I am able to give you 4 reasons that should be sufficient to bury that question for an eternity!

1. Led lights are energy efficient – this simply means that you will not only save your bills, but you will be saving money while you save the planet.

2. They have greater flexibility than an Olympic gymnast because you will be able to obtain led lights in just about any shape, size or wattage you can think off. LED displays are akin to LEGO blocks which allow them to be fitted into practically any space regardless of the shape of the space or its tilt.

3. They are robust. LED lights are as though as they come and in most instances, these lights and their supporting systems are used over and over again.

4. If you are able to arm yourself with just the basic technical concept of pixel pitch for led lights, you will be able to customize your display screens to an incredible level of personalization as it’s the wizardry behind the pixel pitch that determines the resolution and quality of the display (among other things).

 

Thus if you are planning to embark on a led trip’, it’s best you read the rest of this article. Let’s start with the very basics of Pixel Pitch

– Amsterdam Exhibition

HOW TO CHOOSE THE PERFECT PITCH PIXEL

PITCH COMPARISON BETWEEN

0.9 – 1.2 – 1.5 – 1.8

See by yourself the resolution differences between all those pitches

PIXEL PITCH FOR DUMMIES

In essence, the pixel pitch represents the space or distance between pixels in a LED cluster or package, now, the greater the distance between pixels the poorer the quality of the image and vice versa. This means that the little pitch value stamped on the led light display product gives you a rough idea of how big, or how far your wall display needs to be (viewing distance) based on ‘pitch’ and as all of you already know; the smaller the pitch, the higher the resolution. There are some layman equations that people sometimes use to get things done on their own, and one of the more popular techniques or theory for that reason is that for every 1mm in pitch a distance of 8 feet should be allocated as viewing distance.

Another good reason to have deeper understanding of led display pixel pitch is cost savings. This is, based on the fact that this average distance between viewer and screen is approximately 30 feet, fitting a 1mm or 1.5mm pixel pitch configuration for such distances would be a total waste of money as the effectiveness of the 1.5mm resolution and clarity would start eroding at around 15 feet. The table below provides an approximate guide for those who are still uncertain about the correlation between led display pixel pitch and viewing distance.

HOW DOES IT WORK?

PROCESSOR

The processor improves the capabilities of the screen.

The product range from Novastar.tech.

This processor is a very good option for both stability and advanced features at an affordable price.

The VX6s is an all-in-one video controller that integrates sending card functions with video processing.
Designed with powerful video processing capability, it supports 7 video inputs and 6 Gigabit Ethernet outputs.
Based on the powerful FPGA processing platform, the VX6s supports multiple switching effects, such as quick seamless switching and fade, providing flexible screen control experience and outstanding video presentations.

FEATURES

Features 7 input connectors: 2 × 3G-SDI, 2 × HDMI1.3, 2 × DVI, 1 × USB.

Supports 3 ×layers and 1 ×OSD.

Supports quick and advanced screen configurations.

Switches the PVW to PGM by pressing only the TAKE button in the switcher mode.

Supports PGM preview in the switcher mode.

Supports adjustment of input resolutions and backup of input source.

Supports brightness adjustment of the screen loaded by the VX6s.

Multiple VX6s units can be cascaded.

Automatically scales the image to fit the whole screen.

The maximum video output width is 4096 pixels.

A total of 16 users presets can be created and saved as templates. The templates can be used directly and conveniently.

Any HDMI or DVI input source can be used as the synchronization signal to achieve vertical synchronization of output.

Features an intuitive OLED screen and clear button indicator lights in the front panel, simplifying system control, and operation.

APPEARANCE

No.

1

2

3

4

5

6

7

8

BUTTON

ON/OFF

OLED screen

Knob

ESC

Layer and preset buttons

Input source buttons

Function buttons

USB

FUNCTION

Switch off the device

Displays the current status and settings menu of the device.

On the home screen, pressing the knob enters the operation menu screen.

A return key, used to exit the current menu or operation

Pressing a button enters the corresponding layer property menu.

Indicates the status of the input source.

TAKE: In the switcher mode, pressing the TAKE button can switch the PVW to PGM seamlessly with the switching effects set previously.

FN: A custom menu button

 

USB (Type-B): Connects to the upper computer.

USB (Type-A): A reserved port

CURRENT & FUTURE DEVELOPMENTS

Current trends indicate that whilst Pitch 2.5 has become pretty standard in terms of demand, this trend is poised for change based on the fact that demand for pitch 1.9 is quickly gaining momentum and is expected to replace the current standard pitch 2.5. Based on a statistical projection pitch 1.5 is expected to be a norm by 2023 followed by pitch 1.2 and 0.9 by the year 2024 which is just around the corner in relative terms. Apart from developments on Pixel Pitch another component of LED tech that is equally important includes Video Controllers which is explained in the next section.

VIDEO CONTROLLERS

In an LED display unit, one essential component that makes as much difference to visuals is the video controller unit or component. This component is responsible for converting inputs which are subsequently sent to the LED video installations. In essence this is the component that takes the pixels from a specific video source and sends them to the proper individual LED within the construct of the LED Video display.

This entire process is done/ or conducted in an LED video signal processes such as the VX6s which is an all-in-one video controller that integrates signal dispatch and video processing. This unit is top of the line based on its design and functionality that supports 7 video inputs and 6 Gigabit Ethernet outputs. Built on a powerful FPGA processing platform, the VX6s supports multiple switching effects, such as quick seamless switching and fade which advocates flexible screen control options capable of delivering outstanding video presentations.

ELEMENTS THAT IMPACT ON THE PRICES

Technical component that impacts on the prices

RESOLUTION: around 15 500

BRIGHTNESS: 3 000

VIEWING DISTANCE: 1m

IC: MBI5153

LED CONFIGURATION: SMD2121

PRICE: 1300$ – 1900$ /sqm

RESOLUTION: around 40 000

BRIGHTNESS: 1000

VIEWING DISTANCE: Less than 1 m

IC: MBI5153

LED CONFIGURATION: SMD1010

PRICE: 4 500$ – 6 500$ /sqm

RESOLUTION: around 64 000

BRIGHTNESS: 1000 cd/m2

VIEWING DISTANCE: 1.25

IC: MBI5153

LED CONFIGURATION: SMD0606

PRICE: 25 000$ – 30 000$ /sqm

LED DISPLAY VS PRICING

Price is always a limiter and as they say ‘a gold plated Rolls Royce is available as long as you are willing to pay for it” and LED Displays are no exception. From the numerous options that are available, the most important criterion is the actual LED. For instance popular brands such as Nichia, Cree, Multicolor, Nationstar, Silan, and Epistar that offer various features such as waterproof LED systems or shockproof systems among others and the best among them actually depends on application more than anything else. Price naturally go higher as pixel density and resolution go higher which in turn has a tremendous impact on viewing range.

The weight of the system and the cabinet materials used also play a role in pricing (the lighter the system, the higher the price) and of course, the brightness of the LEDs also influences the price. On the note of brightness, currently Nichia produces the brightest LEDs in the market and this of course means that their price is also much higher than the rest.

TAKEAWAY

The technical aspects of led displays are critical towards aesthetics and having sound knowledge of its mechanics could make a big difference in how well the displays are appreciated by the target audience. As mentioned earlier the smaller the pitch, the higher the resolution. For instance, a 1.5 mm pitch LED display module would naturally have more pixels than a 3 mm pitch LED display module. Doing the math, a 4K resolution module (3,840 x 2,160 pixels) requires lesser physical space but achieves higher resolution with fewer materials needed for assembling reducing the size requirement of the video wall.

– Amsterdam Exhibition – Example of what a led HD Screen 1.8 looks like

COMPARE PRODUCTS AND SEE WHICH ONE

IS FOR YOUR PROJECT

SMALL PITCH – 2.5

VS

SMALL PITCH – 2

————————–

200 x 337

80 x 135

————————–

600 x 337,5

480 x 270

————————–

16000

Duty Constant Current 1/27

(H)140º / (V)140º

1000 nits

>3840

16 bits

No

7.5 kg

0ºC ~ +40ºC

50/60 Hz

AC 220V

1 300$ – 1 900$ /sqm

yes

yes

no

Module Parameter :

Size (W x H) mm

Configuration (pixels)

Cabinet Parameter :

Size (W x H) mm

Configuration (pixels)

Complete Solution :

Pixel density

Scanning mode

Viewing angle

Brightness

Refresh rate (Hz)

Gray scale

Optional view distance

Material and Weight kg/pc

Working temperature

Frame frequency

Power consumption /m2

Price

Shockproof

Waterproof

COB and GUB option

 

————————–

200 x 337

80×90 / 120×120

————————–

600 x 337,5

80×90 / 240×240

————————–

25000

Duty Constant Current 1/27

(H)140º / (V)140º

200-1500 nits

> 1920, > 3840

16 bits

No

7.5 kg

0ºC ~ +40ºC

50/60 Hz

AC 220V

2 000$ – 2 800$ /sqm

yes

yes

no

COMPARE PRODUCTS AND SEE WHICH ONE

IS FOR YOUR PROJECT

SMALL PITCH – 1.95

VS

SMALL PITCH – 1.5

————————–

250 x 250

128 x 128

————————–

500 x 1000

256 x 512

————————–

262144

Duty Constant Current 1/22

(H)160º / (V)160º

1000 nits

>1920

13 – 16 bits

1.95

13.5

0ºC ~ +45ºC

50/60 Hz

Max: 640 vg: 213

2 500 $ / 4 200$ / sqm

yes

yes

no

Module Parameter :

Size (W x H) mm

Configuration (pixels)

Cabinet Parameter :

Size (W x H) mm

Configuration (pixels)

Complete Solution :

Pixel density

Scanning mode

Viewing angle

Brightness

Refresh rate (Hz)

Gray scale

Optional view distance

Material and Weight kg/pc

Working temperature

Frame frequency

Power consumption /m2

Price

Shockproof

Waterproof

COB and GUB option

 

————————–

305 x 171,5

192 x 108

————————–

610 x 343 x 62

384 x 216

————————–

398 556 pix/m2

Duty Constant Current 1/22

(H)160º / (V)160º

1000 nits

>3840

14 bits

/

< 6.5 kg

0ºC ~ +45ºC

50/60 Hz

/

2 500$ – 4 200$ /sqm

yes

yes

yes

COMPARE PRODUCTS AND SEE WHICH ONE

IS FOR YOUR PROJECT

SMALL PITCH – 1.25

VS

SMALL PITCH – 0.9

————————–

305 x 171.5

336 x 189

————————–

610 x 343 x 62

672 x 378

————————–

1 213 970

Duty Constant Current 1/27

(H)160º / (V)160º

800 cd/m2

>3840

14 bits

1.25

< 6.5

0ºC ~ +40ºC

50/60 Hz

Max: 620 Avg: 260

7 500$ – 11 000$ /sqm

yes

yes

yes

Module Parameter :

Size (W x H) mm

Configuration (pixels)

Cabinet Parameter :

Size (W x H) mm

Configuration (pixels)

Complete Solution :

Pixel density

Scanning mode

Viewing angle

Brightness

Refresh rate (Hz)

Gray scale

Optional view distance

Material and Weight kg/pc

Working temperature

Frame frequency

Power consumption /m2

Price

Shockproof

Waterproof

COB and GUB option

 

 

————————–

150 x 168,75

120 x 135

————————–

600 x 337,5

480 x 270

————————–

640000

Duty Constant Current 1/27

(H)160º / (V)160º

1000 cd/m2

>3840

14 – 16 bits

1.25

5

0ºC ~ +40ºC

50/60 Hz

Max: 748 Avg: 249

25 000%inner_shortcodesnbsp; – 30 000$ / sqm

yes

yes

yes

TECHNICAL TERMS

LED COMPONENTS : Definitions

Pixel Pitch

The distance between each dot

Driver IC

used to control another circuit or component, such as a high-power transistor, liquid crystal display (LCD),

and numerous others.

Brightness

The brightness, it’s what makes the LED shines day and night. It can regulate through software and some clients like in the middle east would require more brightness in terms of nits.

Nits (Brightness)

In lighting, the nit is a unit of visible-light intensity, commonly used to specify the brightness of a cathode ray tube or liquid crystal display computer display. One nitis equivalent to one candela per square meter.

/

LED lamp

is a light-emitting diode (LED) product that is assembled into a lamp (or light bulb) for use in lighting fixtures. LED lamps have a lifespan and electrical efficiency which are several times greater than incandescent lamps, and are significantly more efficient than most fluorescent lamps, with some chips able to emit more than 300 lumens per watt (as claimed by Cree and some other LED manufacturers)

Power supply

is an electronic device that supplies electric energy to an electrical load. The primary function of a power supply is to convert one form of electrical energy to another. As a result, power supplies are sometimes referred to as electric power converters.

HDMI

Which is connection the video processor to the PC control

Ethernet cable (Signal cable)

is a family of computer networking technologies commonly used in local area networks (LAN), metropolitan area networks (MAN) and wide area networks (WAN)

Receiving card

The receiving card is inside the frame with the power supplies

Light sensor

A Light Sensor is something that a robot can use to detect the current ambient light level – i.e. how bright/dark it is. There are a range of different types of light sensors, including ‘Photoresistors’, ‘Photodiodes’, and ‘Phototransistors’. The sensor included in the BOE Shield-Bot kit, and the one we will be using, is called a Phototransistor.

Synchronous

When you plug and play through a USB stick for example

/

Asynchronous

When you have to set up your LED screen through

/

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