Brightness-Sensed Display Drive Circuit for OLED Life Extension
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Solution Overview
Problem
OLED display units suffer from material decay and color deviation due to long-time lighting, leading to issues like screen burning and reduced display effectiveness.
Innovation Solution
A display drive circuit with a first and second drive unit, a display detection unit, and a control unit that alternately enables these units based on detected light-emitting brightness, adjusting their enabling times to balance the display duration and maintain consistent brightness levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If OLED display units are driven to emit light continuously, then display brightness and visibility are maintained, but material decay accelerates and service life is reduced
Solution Approach 1:
The patent implements periodic action by alternately enabling first and second drive units in a cyclic manner. The control unit switches between the two drive units, allowing each to operate for a period and then rest while the other takes over. This periodic switching reduces continuous operation stress on individual OLED display units, thereby extending service life while maintaining display brightness through the alternate drive unit.
2Productivity
If OLED display units operate for extended periods, then display functionality is maintained, but material decay and color deviation occur
Solution Approach 1:
The control unit implements periodic switching between first and second drive units, allowing each unit to operate for a defined period and then rest. This periodic operation prevents any single OLED display unit from operating continuously, thereby preventing material decay and color deviation while ensuring display functionality is maintained through the alternate drive unit taking over during the other's rest period.
3Reliability
If multiple drive units are used to extend service life, then service life is prolonged, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the drive function into separate first and second drive units, each capable of independently driving the OLED display units. This segmentation allows the system to extend service life by switching between units, while the modular design keeps each unit's complexity manageable. The control unit coordinates the segmented drive units through systematic switching.
Solution Approach 2:
The patent merges multiple drive units into a unified system controlled by a single control unit. The control unit integrates the operation of first and second drive units, managing their alternate activation and coordination. This merging approach allows the system to benefit from multiple drive units for extended service life while maintaining manageable complexity through centralized control.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach prolongs the service life of OLED display units by reducing prolonged lighting times and ensuring consistent display effects by alternating the enablement of drive units, thereby maintaining uniform brightness and improving overall display quality.
Implementation Method 1
the display detection unit is connected with the control unit, and used for detecting light-emitting brightness of the first display unit and the second display unit
Data Source
AI summary
Disclosed are a display drive circuit, a display drive method and a display panel. This solution adjusts enabling time of a first drive unit and a second drive unit based on light-emitting brightness of a first display unit and light-emitting brightness of a second display unit which are detected by a display detection unit, and the service lives of the first display unit and the second display unit are effectively prolonged.