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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