Organic Light Emitting Display Power Supply with Dual Block Switching
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Solution Overview
Problem
Existing organic light emitting displays face instability in voltage generation due to external environmental factors, leading to interrupted power supply and improper driving when input voltage is not transmitted or is interrupted.
Innovation Solution
A power supply system with a first and second power block, and a voltage input unit that switches between normal and alternate operation modes based on an enable signal, ensuring stable voltage generation by using one power block when the other is not operational.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single power block is used for voltage generation, then the device complexity is reduced, but the reliability deteriorates when input voltage is interrupted
Solution Approach 1:
The power supply is divided into multiple independent power blocks (first power block, second power block), each capable of independently receiving input voltage and generating output voltage. This segmentation allows the system to maintain voltage generation capability even when one power block is inactive, thereby improving reliability without requiring a completely redundant complex system.
Solution Approach 2:
The power supply system dynamically switches between different power blocks based on the enable signal state. When the enable signal is active, the first power block operates; when the enable signal is inactive, the second power block operates. This dynamic switching mechanism ensures continuous reliable operation while keeping the overall system design manageable.
2Reliability
If multiple power blocks are used for stable voltage generation, then the reliability is improved, but the device complexity increases
Solution Approach 1:
Both the first power block and second power block are designed with identical functionality - each can receive input voltage, process the enable signal, and generate output voltage. This universality allows the system to achieve redundancy and improved reliability through functional duplication rather than complex differentiated designs, making the system more reliable while keeping the added complexity manageable.
3Reliability
If the power supply switches between normal and alternate operation modes, then the reliability is improved during voltage interruption, but the ease of operation deteriorates
Solution Approach 1:
The power supply system automatically switches between the first and second power blocks based on the state of the enable signal without requiring manual intervention. The system self-monitors the enable signal state and autonomously determines which power block should be active, thereby improving reliability during voltage interruptions while maintaining ease of operation through automated control.
Data Source
AI summary
An organic light emitting display includes a first power block for receiving a first input voltage to output a first output voltage and configured to be driven in a normal operation mode corresponding to an enable signal, a second power block for receiving a second input voltage to output a second output voltage and configured to be driven in an alternate operation mode corresponding to the enable signal, and a voltage input unit for transmitting the first input voltage to the first power block in the normal operation mode, and for transmitting the second input voltage to the second power block and stopping the transmitting of the first input voltage to the first power block in the alternate operation mode, corresponding to the enable signal.