Display Driver Brightness Interpolation for Power and Burn-In Control
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Solution Overview
Problem
Existing display technologies face challenges in efficiently reducing power consumption and preventing panel burn-in while displaying images, as the fixed brightness values do not adapt to user needs.
Innovation Solution
A display driver system that includes an OPR generating module, brightness limiting module, and driving module, which calculates a reduced brightness value through interpolation based on reference OPR and initial brightness values, allowing for adaptable brightness adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If fixed brightness values are used for image display, then the display can maintain consistent brightness, but power consumption cannot be reduced and panel burn-in cannot be prevented
Solution Approach 1:
The patent implements dynamic brightness adjustment by calculating a reduced brightness value based on the reference OPR and initial brightness value through interpolation. The brightness limiting module dynamically determines the reduced brightness value according to the actual display conditions, replacing fixed brightness values with adaptive, variable brightness control to reduce power consumption and prevent burn-in.
Solution Approach 2:
The patent changes the brightness parameter from a fixed value to a calculated reduced brightness value that varies based on the reference OPR. By using interpolation between the initial brightness value and a minimum brightness value according to the reference OPR, the system dynamically adjusts the brightness parameter to achieve lower power consumption while maintaining display quality.
2Loss of energy
If brightness is reduced to save power, then power consumption decreases, but image display quality may deteriorate
Solution Approach 1:
The patent uses interpolation to calculate the reduced brightness value based on the reference OPR and initial brightness value. This parameter change approach ensures that the brightness reduction is proportional and controlled, maintaining display quality while reducing power consumption. The interpolation formula ensures smooth transitions and preserves image characteristics.
Solution Approach 2:
The system calculates the reference OPR based on the actual display conditions and uses this feedback to determine the reduced brightness value. The brightness limiting module receives the reference OPR and accordingly adjusts the brightness value through interpolation, creating a feedback-controlled system that balances power consumption and display quality.
3Measurement precision
If interpolation calculation is performed to determine reduced brightness value, then brightness adjustment precision improves, but calculation complexity increases
Solution Approach 1:
The patent implements interpolation calculation to determine the reduced brightness value based on the reference OPR and initial brightness value. This parameter change approach provides precise brightness adjustment by calculating the exact reduced brightness value needed, achieving high precision while keeping the calculation method systematic and manageable.
Data Source
AI summary
A display driver is provided. The display driver includes an OPR generating module, a brightness limiting module and a driving module. The OPR generating module is configured to generate a reference OPR corresponding to an image; the brightness limiting module is configured to acquire a plurality of brightness ranges and an initial brightness value corresponding to the image, one brightness range corresponding to one OPR range; the brightness limiting module is further configured to acquire a reduced brightness value corresponding to the reference OPR by performing interpolation at the reference OPR based on the initial brightness value, the plurality of brightness ranges and OPR ranges corresponding to the plurality of brightness ranges, the reduced brightness value being smaller than the initial brightness value; and the driving module is configured to drive the display panel to display the image based on the reference OPR and the reduced brightness value.