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3.3 Display Unit Supporting Structure: The "Muscles" Connecting Skin and Skeleton

This intermediate structure links LED display units and the spherical steel frame, fixing each panel in place with accurate angles and positions.

Adopting a modular design, it uses keels of different specifications to adapt to varying curvatures across the sphere. For the internal screen installation, the team applied a top-down reverse construction method and the "permanent-temporary integrated keel platform" technology, boosting installation accuracy and construction efficiency.

Made of lightweight high-strength aluminum alloy, the structure ensures rigidity while reducing overall load on the steel frame.

3.4 Image Control and Processing Equipment: The "Brain" of the Spherical Screen

This set of equipment acts as the screen’s "brain", converting input video signals into formats adapted for spherical display and distributing signals to each LED unit.

Equipped with a distributed control system, the entire spherical screen is divided into multiple zones with independent control units, improving system reliability and reducing signal latency. Integrated with low-latency video processing and transmission technology, it supports real-time playback and seamless switching of 16K ultra-high-definition videos.

Advanced viewing angle compensation and color correction technologies are also deployed. The system automatically adjusts brightness, color and grayscale of lamp beads in different areas of the sphere, eliminating visual deviation and picture fragmentation caused by curved splicing, so the image remains uniform and clear from all viewing angles.

3.5 Auxiliary Facilities: The "Circulatory System" of the Spherical Screen

These facilities guarantee stable operation, mainly including power supply system, environmental control system and dedicated cables.

3.5.1 Power Supply System

With a total power of several thousand kilowatts, the screen demands an extremely stable power supply. A dual-circuit power supply plus UPS uninterruptible power system is adopted to enable seamless switchover in case of single-circuit failure and avoid blackouts. Power is delivered in a distributed manner via multiple branches, each equipped with independent overload and short-circuit protection for enhanced safety.

3.5.2 Environmental Control System

LED panels generate substantial heat during operation, which would damage performance and service life without effective heat dissipation. The intelligent environmental control system monitors temperature, humidity and air quality in real time, and automatically regulates air conditioners and ventilation fans.

• The external screen uses combined natural ventilation and forced air cooling.
• The internal screen is equipped with a central air conditioning system to maintain an optimal working temperature.

The system also features dehumidification, dust prevention and salt fog resistance to adapt to complex environments.

3.5.3 Dedicated Cables

High flame-retardant, low-smoke and halogen-free cables are used for power and signal transmission, preventing toxic gas emission in case of fire. All cables are laid in a concealed layout for aesthetics and protection, and marked with serial numbers for convenient later maintenance.

4. Interior Space Design: Core of Immersive Experience

The interior layout is elaborately designed to deliver an ultimate immersive experience. Multi-layered auditoriums are built inside the sphere with professional sightline optimization, ensuring every audience member has an excellent viewing angle.

The interior adopts an inclined bowl-shaped layout to fully utilize the spherical space. Combined with the 360° full-coverage internal screen and panoramic multi-channel sound system, visitors are completely surrounded by visuals. They can enjoy vivid naked-eye 3D immersion without wearing any extra devices.

5. Technological Breakthroughs and Industry Significance

The completion of Qianjiang Tian Palace Nova marks that China’s LED display technology for super-large special-shaped screens has reached a world-leading level. It has achieved multiple key technological breakthroughs:

1.Realized full dual-layer LED coverage on a giant sphere with a diameter over 50 meters.

2.Applied conformal screen and sound-transparent screen technologies to solve long-standing display and acoustic problems of traditional spherical screens.

3.Leveraged BIM technology and modular construction methods to greatly improve construction efficiency and precision for giant spherical screens.

As Asia’s largest spherical screen, Tian Palace Nova has created a new growth point for Qianjiang’s cultural tourism industry, and provided replicable experience for the development of China’s digital cultural tourism sector. It proves that in-depth integration of technology and culture can generate tremendous economic and social value, and drive urban transformation and upgrading.

With the continuous advancement of LED display technology, more masterpieces combining technology and art like Tian Palace Nova will emerge across Chinese cities, bringing stunning visual experiences to people.