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    FINE PITCH IN MOVIE & TV PRODUCTION

    How to choose a digital LED wall screen display set for Virtual ProductioN

    Choosing the best LED display screen for Virtual Production is simple but is a long process.

    If you are looking to build a Virtual production studio and you are looking at options to buy LED wall display sets for the studio then you know that quantity will be big and so will be the budget.

    If Budget doesn’t allow you to buy the most expensive LED wall out there then this page will help you to know what is important to understand before placing your order.

    THE 100 MOST IMPORTANT ELECTRONIC COMPONENTS TO LOOK AT PRIOR TO BUYLED SCREEN DISPLAY FOR VIRTUAL PRODUCTION

    There are ways to reduce the budget of your led wall screen display without having to compromise on the quality of the wall screen in-camera. Here we will list what are

    We will start by explaining technical knowledge about the core components and performances of an LED screen display. Once those technical knowledge are understood, you will need to go through a number of tests to ensure the performances of the product in front of a camera are as expected.

    Those tests are to ensure the LED screen display would work in many different situations and configuration. There are more than 4000 factories specialising in LED wall display most of them are located in Shenzhen.

    Those 100 electirc components impact on the performances of the screen in-camera but also it impact on a lot of the budget.

    Each factory propose an average of 10 products so potentially 100ds of product options to choose from in each factor. Our team is here to help to have a better vision on what is the impact of each electronic components to enable you to compare apple to apple.

    17 STEPS TO CHOOSE LED DISPLAY FOR VIRTUAL PRODUCTION

    Step 1 : LED Lamp Brand

    The name of the brand of each dot pixel that your screen will be composed with.There are a number of LED lamp brands on the market from low end local Chinese brand to high end expensive Japanese and LED brand. Make sure to pick the one that will fit your end customer requirements.

    Step 2 : Serie/Type of encapsulation

    The way each pixel is being encapsulation. The darker is the encapsulation the more contrasted the screen will be.
    To cover DCI P3 Color gamut: FCB series, RS 1515, and FC1010 There is no DCI P3 for 2121 and NH1515, only fc1010 and rs1515 have it. encapsulation,: SMD2121 Full black (NH-R1515) Copper Wired. King light: 1010-P3, 2020-BB-P3

    Step 3 : COLOR GAMUT

    Color gamut is the entire range of colors and tons achievable by an imaging system. More specifically, the portion of the color spectrum that can be reduced when transforming from RGB colors to CMYK colors.
    - REC 709 - DCI-P3 - REC 2020 - Adobe RGB - CG-3184k

    Step 4 : Sending card/Processor

    The receiving card and hub card is the control system of the LED screen. Sending cards are usually classified according to the resolution capacity they are capable of processing. We can have cards that can obtain maximum output resolution of 1024 x 768 and higher once with capacities of up to 4K

    BRAND/DETAILS

    Brompton TESSERA SX40 Megapixel VR’s HELIOS LED Processing Nova H series Nova pro UHD JR series Nova MCTR 4K series Color light Z6 Pro

    Step 5 : WIRE CONNECTION

    Golden wire:
    Higher price but better transmission, encapsulation and stability, It has the most mature welding process

    . Copper wire
    brings cost reduction yet welding process is more affected then the failing rate and dead pixel ratio increased

    Step 6 : DRIVER

    Driving IC is an integrated electronic component, which is mounted in the surface of PCB (back side of module), the driving IC receives and sends data signal and power signal to LED lamp through integrated circuit on PCB. Computer of each PCB dictates the performances of each LED screen.

    Step 7 : MOSFET

    The MOSFET (Metal Oxide Semiconductor Field Effect Transistor) transistor is a semiconductor device that used for switching purposes and for the amplification of electronics signals in electronic devices.

    Step 8 : REFRESH RATE

    Refresh rate is the number of times per second (written in hertz, or Hz) a screen refreshes its image. It’s directly affect the LED display’s performances. The higher the refresh rate the more stable and clearer the display image and a smaller impact on the human eyes. The lower refresh rate will get the bigger flicker and Jitter of the display image, and faster get fatigued to human eyes.

    Step 9 : BRIGHTNESS

    Brightness is measured by using nite or candelas per m2. The higher the luminosity level, the higher level of brightness. Screens with higher brightness are pricier and use more electrical power. Hence, it is important to choose a screen with the right brightness for your needs, so won’t pay more for something that is not necessary.

    Step 10 : GRAYSCALE

    Grayscale indicates how many intensity levels from the darkest to the brightness can be displayed on an LED display.

    Step 11 : SCAN

    The scan = Time multiplex.It frame rate is 60, which mean every 1/60sec will refresh a picture The static LED only control one LED in 1/60s If the scan is 36scan LED will control 36 LED in 1/60s.The lower the scan rate the better the performance and The more expensive it will be. The smaller the pitch, the greater the number o time-multiplexing. 1-35 scan = lower scan 36 – 64 scan = higher scan

    Step 12 : LED PROTECTION

    Resin or proxy lay to project the LED in order to prevent Dead pixel

    Step 13 : CABLING TYPE

    Quality of the cabling that connects LED. The better is the quality the more stable the screen will be. All in order to avoid a black screen during a live concert for example.

    Step 14 : POWER SUPPLY

    The unit of power supply that transform High voltage to low voltage

    Step 15 : RETAL PRODUCT

    All feature to enable : Fast fit-in and fit-out, shorter installation time and touring the product on multiple location

    Step 16 : TYPES OF RECEVING CARD

    The receiving card and hub card is the control system of the LED screen, Usually, sending a card is installed on the PCI-E slot of the control PC, collects and transfers data to LED screen. Receiving card is installed in each cabinet of LED screen, receives the data from the sending card and runs the LED screen.

    Step 17 : HDR

    Increased contrast and luminance ranges Expanded range between darkest and lightest parts of image allows for a greater level of contrast. Wider and finer color spectrum allows for smoother color gradation. Image comes closer to what the human eye can see, allowing the picture to pull the viewers into the scene.

    LED screens don’t necessarily need to work with high-end components, and state of the art driver IC’s but for Virtual production there is a level of quality not to go under otherwise the compromise on the quality will be seen on the screen.LED panels are capable to display visuals from 10-bit to 16bit even 22bit HDR with the image boost feature from Novastar. By selecting a wide range of selected suppliers, Street Co is able to provide wide range of LED display solution that can both fits:

    • Budget
    • In Camera expectations

    Those premium LED batches from carefully selected suppliers can reach more than 90% of the color gamut on a rec2020 target. And last but not least for this type of application, Street Co LED panels are able to work with higher frame rates. Due to new high frame-rate options in the control system software, Street Co’ LED can propose LED panels that can reach up to 144 frames per second.Essentially, the lower is the scan rate, the better the performances, the higher the price, the higher brightness.Our team is here to help and guide you through this complexe technical spec in order to choose the best LED option that will fit your budget.

    What product do we suggest?

    The most expensive LED screen display products aren’t necessarily required for Virtual Production LED screen sets. Some specific electronics are necessary but they don’t have to be the most expensive products.

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