Flickering

Flickering (flashing or shimmering)

is an undesirable phenomenon in which rapid changes in the brightness of the LED screen. It may not always be visible to the naked eye, but it can manifest itself quite clearly when filming with a camera or taking photographs.In event production, flickering on the camera typically manifests as:

– a flickering or pulsating image,
– dark or light horizontal stripes,
– scrolling bands moving across the image,
– unstable brightness or exposure of the LED screen.

What is the most common cause of this in LED screens? It is particularly important to distinguish between:

– LED screen refresh rate, e.g. 1,920 Hz, 3,840 Hz, 7,680 Hz,
– PWM brightness control for LED modules,
– camera settings, particularly shutter speed/shutter angle and frame rate,
– a mismatch between the camera’s timing and that of the LED processor/receiving cards.

Other similar terms.

CRI Backdrop CMYK Drop Edge blending Footage Fresnel reflector Gobo Headset Grain Ground Support Hardware Hazer Cedar profile Interactive projection Intelligent lights In-ear – earphones Hertz – unit of measurement Laser Layer LCD screen LED bar LED starry sky LED screen LED totem Lumen Mediaserver Mixer Moiré effect Furniture Mobile barriers Headset microphones Pressure Barriers Online/Onsite Cutter Blades – Frame Shutter Pipe & drape Pixel Prism Processor Production Profile spotlight Projection mapping Remote Rendering RGB Software Streaming Teleprompter Unreal engine Videomapping Wireless