Parallel Power Supply Sharing for Multi-Display Systems
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Solution Overview
Problem
In multi-display apparatuses, power consumption varies among individual display devices, leading to redundant power supplies that are costly and inefficient, as they must be capable of handling the maximum load even when devices do not operate simultaneously at maximum capacity.
Innovation Solution
A composite display apparatus with multiple display devices connected in parallel, where power supplies are shared between devices, allowing power to be supplied from one device to another if needed, thereby reducing the overall power supply capacity required.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If power supplies are sized for maximum load of each display device, then reliability is ensured, but device size and cost increase due to redundancy
Solution Approach 1:
The patent merges the power supply functions of multiple display devices by connecting power supply lines in parallel, allowing a single power supply unit to serve multiple devices. This eliminates redundant power supplies while ensuring that sufficient power is available when any device operates at maximum load, thus resolving the contradiction between reliability and size.
Solution Approach 2:
The power supply unit is designed to serve multiple display devices universally, rather than being dedicated to a single device. The parallel connection architecture allows any power supply to support any display device's maximum load requirements, making the power supply system multi-functional and eliminating the need for device-specific power supplies.
2Power
If power supplies are sized for maximum load of each display device, then power availability is ensured, but manufacturing cost increases
Solution Approach 1:
By merging power supply capacities through parallel connections, the system achieves the equivalent of multiple high-capacity power supplies using shared infrastructure. This reduces the total manufacturing cost while maintaining the ability to support maximum load on any individual display device when needed.
Solution Approach 2:
The system allows power capacity to be dynamically allocated and recovered between devices. When one display device is operating at maximum load, other devices consume less power, and their unused power capacity is effectively recovered and made available to support the high-demand device, optimizing overall system resource utilization.
3Illumination intensity
If power supplies are sized for maximum load, then high-luminance display capability is supported, but power supply redundancy increases
Solution Approach 1:
The patent combines power supply capacities from multiple sources through parallel connections, creating a shared power pool that supports high-luminance display capabilities without requiring each individual power supply to have redundant capacity. The merged system provides sufficient power when any single device operates at high luminance.
Solution Approach 2:
The power distribution system is dynamic, allowing power flow to change based on real-time operational demands of each display device. When one device requires high power for high-luminance operation, the system dynamically allocates power from the shared pool, rather than requiring static redundancy in each power supply unit.
Data Source
AI summary
The composite display apparatus includes multiple display devices each including a power supply having predetermined supply power and a power supply connection unit that connects the power supplies of the respective display devices to each other in parallel. The composite display apparatus is configured in such a manner that, in a case where at least one display device among the multiple display devices requires electric power exceeding the predetermined supply power of the power supply of the display device, electric power is supplied to the display device from the power supply of the other display device or devices. The present technology can be applied, for example, to a multi-display apparatus and so forth.