Indoor P4 Full-Color LED Display Technical Parameters and Installation Guide
I. Technical Parameters
Dot Pitch: 4mm, a relatively large dot pitch for indoor screens, suitable for scenarios with lower resolution requirements.
Dot Density:62,500 dots/㎡ (suitable for both indoor and outdoor use).
Module Types and Specifications:
128×128mm: Small board module, suitable for bars, KTVs, and irregularly shaped screen splicing; ideal for irregularly shaped screens.
256×128mm: Standard size module, using 2 data sets and 16-scan mode, standard configuration includes matte LEDs, 2038 high refresh rate IC, refresh rate ≥1920Hz.
256×256mm: Large board module, integrated PCB design, 2 data sets and 32-scan mode, lower brightness, suitable for budget-constrained locations.
320×160mm: Universal size module, market-standard design, easy to replace and maintain, but not a standard size; 256×128mm remains the mainstream.
Enclosure Types:
Simple Enclosure: Rear-maintenance type, suitable for large venues with fixed installations.
Standard Enclosure: Adds a rear cover to prevent rodent chewing, commonly found in catering establishments.
Die-cast Aluminum Enclosure: Lightweight design, easy to install and disassemble, suitable for rental screens; wiring uses aviation plugs.
II. Installation Methods
Wall-mounted Front Maintenance Installation: Uses magnetic front maintenance, suitable for compact spaces.
Frame Material: Such as Jike 4590 black aluminum profile frame.
Power Supply: Taiwan Mean Well 5V 200W power supply.
Control Card: Brands such as Beijing Kaishida.
Rear Maintenance Installation: Achieves rear maintenance through the enclosure structure, suitable for large screen projects.
Steel structure drawings are usually provided by the screen manufacturer, but can also be drawn based on professional experience.
III. Installation Steps and Precautions
Module Selection: Select the module size according to the scene requirements. For example, prioritize 128×128mm for irregularly shaped bar screens, and 256×128mm for standard screens.
Cabinet Installation: Choose a simple cabinet for fixed installations, a standard cabinet for catering venues, and a die-cast aluminum cabinet for rental screens.
Steel Structure Construction: Complete the steel structure installation according to the screen manufacturer's drawings or professional experience, ensuring load-bearing capacity and stability.
Debugging and Control System: Commonly used control system brands: Lingxingyu, Nova, Kalite, Kaishida, etc.
Debugging methods vary depending on the control card manufacturer; refer to specific technical documents.
IV. Applicable Scenarios and Recommendations
Applicable Locations: Bars, large indoor screens, rental screens, restaurants, and other scenarios where high resolution requirements are not high.
Area Recommendation: P4 models are not recommended for LED screens under 10㎡.
For projects over 10㎡ with limited budgets, P4 remains competitive.
Technical Consultation: Detailed parameters such as product power consumption, LED brightness, and IC model can be consulted with the supplier.
V. Advantages Summary
High cost-performance ratio: Before small-pitch LED technology matured in the past two years, the P4 was the superior model.
High durability: Less prone to damage to the LED chips, suitable for long-term use.
Flexible module and enclosure design: Supports irregular splicing and post-maintenance design, meeting diverse needs.
