Display Power Switching for Low-Standby Command Readiness
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Solution Overview
Problem
Existing display apparatuses consume significant standby power due to the operation of various components even when not in use, leading to inefficient power management.
Innovation Solution
A display apparatus with a power supply system that includes a main module and a standby power supply, controlled by a controller to manage power distribution through switches, allowing the apparatus to transition between normal and standby modes based on user commands, minimizing power consumption in standby mode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If components are operated in standby mode to maintain readiness for user commands, then user control and operational readiness are maintained, but power consumption increases significantly
Solution Approach 1:
The power supply system is segmented into multiple independent modules (main module, standby power supply module) with separate power paths. The controller can selectively power only the essential standby components while completely shutting down non-essential modules, thereby maintaining user control readiness while minimizing standby power consumption.
Solution Approach 2:
The system dynamically adjusts power distribution based on operational state. The controller monitors user commands and automatically transitions between normal operation mode and standby mode, adjusting the power supply state of different modules in real-time to optimize the balance between readiness and power consumption.
2Loss of energy
If all components are powered down to minimize standby power consumption, then energy efficiency is improved, but the apparatus cannot respond to user commands
Solution Approach 1:
The system divides components into essential standby components (controlled by the standby power supply module) and non-essential components (controlled by the main module). This segmentation allows the essential components to remain powered for command response while non-essential components are powered down, resolving the contradiction between energy efficiency and reliability.
Solution Approach 2:
The standby power supply module acts as an intermediary between complete power shutdown and full power operation. It provides a intermediate power state that supplies sufficient power for basic command response functions while consuming minimal energy, thereby bridging the gap between extreme power savings and full operational reliability.
Data Source
AI summary
Provided is a display apparatus and a method of operating the same. The display apparatus includes: a power supply configured to generate power to be supplied to the display apparatus from an external power source, an input interface configured to receive a turn-on command or a turn-off command for the display apparatus, a main module configured to operate at an operation voltage and control the input interface to receive the turn-off command, and a controller configured to operate at a standby voltage, wherein the controller is configured to: a first switch control signal to open a first switch to deliver the operation voltage to the main module based on the turn-off command, and output a second switch control signal to open a second switch connected between the external power source and the power supply based on the outputting of the first switch control signal.