P4 Indoor Flexible LED Display Module – 320×160mm SMD2121 LED Module for Digital Signage Projects

The P4 Indoor Flexible LED Display Module is a professional 320×160mm flexible LED module engineered for indoor digital signage, curved LED screens, cylindrical LED displays, column LED screens, wave LED walls, commercial displays, and customized creative LED installations. Featuring a 4mm pixel pitch, SMD2020 LEDs, 80×40 module resolution, 62,500 dots/m² pixel density, 600–650cd/m² brightness, and a 3840–7680Hz high refresh rate, the module provides stable and smooth visual performance for professional indoor LED display projects.

The current-generation module features an upgraded 320×160×4.5mm ultra-thin flexible structure combining a flexible PCB, silicone soft bottom case, and enhanced 32-magnet mounting configuration. With a specified 407mm assembly diameter, ≥135° bending angle, HUB75 16PIN signal interface with 1 input / 1 output, and support for front or rear installation and maintenance, this P4 flexible LED module provides a practical solution for creative display structures where conventional rigid LED modules cannot accommodate curved or irregular surfaces.

Package Included

About This Item

• P4 Indoor Flexible LED Display Module: Designed with a 4mm pixel pitch and standardized 320×160mm flexible module format, this P4 LED module provides an 80×40 resolution and 62,500 dots/m² pixel density. It is suitable for indoor digital signage, curved LED screens, cylindrical displays, commercial video walls, retail displays, exhibition spaces, experience centers, architectural displays, and customized creative LED projects.
• Upgraded 4.5mm Ultra-Thin Flexible Structure: The current-generation module uses an upgraded 320×160×4.5mm ultra-thin structure with a flexible PCB and silicone soft bottom case. The slim construction reduces module depth while providing controlled flexibility for curved and irregular indoor LED display surfaces.
• Enhanced 32-Magnet Mounting Design: Each module incorporates an upgraded 32-magnet configuration for stronger magnetic attachment, improved module flatness, enhanced edge stability, and more consistent installation. The optimized magnet layout helps reduce common flexible-module issues such as edge lifting, corner deformation, and uneven positioning.
• SMD2020, 600–650nits & 3840–7680Hz: SMD2020 LEDs combined with 600–650cd/m² brightness, a 3840–7680Hz refresh rate, 60Hz frame rate, 14bit grayscale, and a 5000:1 contrast ratio provide smooth and stable image reproduction for professional indoor LED display environments.
• 407mm Assembly Diameter & ≥135° Flexible Design: The flexible PCB and silicone soft bottom case support curved display structures with a specified ≥135° bending angle and 407mm assembly diameter. This makes the module suitable for cylindrical LED displays, column screens, curved LED walls, wave displays, ribbon-style screens, and other customized creative LED structures.
• HUB75 16PIN & Front/Rear Installation: The module uses a HUB75 16PIN signal interface with 1 input / 1 output and supports front or rear installation and maintenance. Combined with DC 5V operation and magnetic mounting, this configuration supports system integration, replacement requirements, channel procurement, engineering applications, and project-based LED installations.

Order & Logistics

Lead Time

PIF-S Series: Handling time 3–5 business days.

Freight & Delivery

Shipping fees are not included in product pricing and will be charged separately based on actual freight cost.

• Available Shipping Methods: Standard shipping / Express shipping / Project logistics.
• Estimated Shipping Time: Standard delivery takes 9–18 business days, while express delivery takes 5–9 business days.
• Express Options: DHL / UPS / FedEx options may be available depending on destination and order quantity.
• Shipping Terms: DDP TERM (all fees included), except for destination countries where this shipping service is unavailable. In such cases, we will contact the buyer if this clause does not apply to their country.
• Project Procurement: This product supports bulk purchasing, channel stocking orders, system integration, replacement requirements, engineering procurement, and project-based delivery.

For large quantity orders, please contact us to confirm freight arrangements, production schedules, and delivery plans.

Specifications

Structure & Design Features

• 4.5mm Ultra-Thin Upgraded Design: The current-generation P4 flexible LED module uses a 4.5mm ultra-thin structure to reduce installation depth while maintaining the controlled flexibility required for curved and irregular indoor LED display surfaces.
• 32-Magnet Enhanced Mounting Structure: Each module uses 32 magnets to improve magnetic attachment, surface flatness, edge stability, and installation consistency. The enhanced magnet layout helps address common flexible-module issues such as edge lifting, corner deformation, and uneven positioning.
• Flexible PCB & Silicone Soft Bottom Case: The flexible PCB works together with the silicone soft bottom structure to provide controlled bending performance for cylindrical LED displays, curved LED walls, column screens, wave displays, ribbon-style screens, and customized creative LED installations.
• SMD2020 High-Refresh Display Architecture: The combination of 4mm pixel pitch, SMD2020 LEDs, 62,500 dots/m² pixel density, 3840–7680Hz refresh rate, 14bit grayscale, 600–650cd/m² brightness, and 5000:1 contrast ratio supports smooth visual presentation for professional indoor display environments.
• Project-Oriented Installation & Maintenance: Magnetic mounting, HUB75 16PIN connectivity with 1 input / 1 output, and support for front or rear installation and maintenance provide flexible integration for system integrators, channel customers, replacement applications, commercial projects, and engineering procurement.

Compatibility Notice

This P4 320×160mm indoor flexible LED module uses the current-generation 4.5mm ultra-thin structure and upgraded 32-magnet configuration. The new structure differs from earlier versions with different module thicknesses and magnet layouts. For repeat orders, replacement modules, or existing LED display installations, please confirm the module version, mounting positions, magnet layout, and structural compatibility before ordering.

Installation Guide

• Confirm the required LED display shape, module arrangement, power supply capacity, receiving card configuration, signal distribution, installation direction, and maintenance method before installation.
• Install the P4 320×160×4.5mm flexible LED modules according to the designed curved, cylindrical, column, wave, ribbon-style, or customized display structure.
• Use the integrated 32-magnet mounting structure to secure each module. Ensure that all modules are correctly aligned and maintain consistent surface flatness without excessive compression, edge lifting, or structural interference.
• Connect the HUB75 16PIN signal interface and DC 5V power connections according to the specified wiring configuration. The signal interface uses a 1 input / 1 output configuration; receiving card and signal distribution layouts should be planned according to the LED display system design.
• The product specification defines a ≥135° bending angle. During installation and operation, maintain the module within the specified 135°–180° safe bending range and avoid violent, excessive, or repeated reverse bending.
• For cylindrical display construction, the specified assembly diameter is 407mm. Confirm the required display curvature and module arrangement before fabrication and installation.
• Wear anti-static gloves when handling the LED modules. Avoid directly touching the LED surface with bare hands.
• Handle the flexible LED modules carefully during transportation, unpacking, installation, and maintenance. Avoid dropping, impact, edge compression, sharp objects, hard tools, and excessive pressure on the LED surface.
• Front or rear installation and maintenance can be selected according to project requirements. Always switch off power before installing, removing, connecting, or servicing modules.
• Ensure sufficient ventilation and heat dissipation around the LED display system. This is an indoor LED module and should be protected from rain, direct water exposure, condensation, corrosive gases, excessive dust, strong vibration, and unsuitable environmental conditions.

Applications

• P4 Indoor Flexible LED Display Screens
• P4 Flexible LED Modules
• Indoor Digital Signage LED Displays
• Curved LED Screens
• Curved LED Video Walls
• Cylindrical LED Displays
• Column LED Screens
• Wave LED Displays
• Ribbon LED Screens
• Creative Indoor LED Installations
• Commercial Indoor LED Displays
• Retail LED Display Systems
• Shopping Mall LED Displays
• Brand Experience Center Displays
• Exhibition Hall LED Displays
• Museum Digital Displays
• Showroom LED Screens
• Corporate Visual Display Systems
• Architectural Flexible LED Installations
• Indoor Advertising LED Screens
• Immersive Experience Spaces
• Customized Creative LED Display Projects