EL Display Compensation Circuit for Brightness Stability
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Solution Overview
Problem
Existing electroluminescence (EL) display devices suffer from temporary brightness degradation that affects display quality, which existing technologies have not effectively addressed.
Innovation Solution
A display processing circuit comprising a detecting circuit and a compensation circuit that dynamically adjusts the compensation brightness level based on the degree of change in display data, increasing it when the change is less than a predetermined degree and decreasing it when the change exceeds this threshold, using a combination of detecting and compensation circuits to manage temporary brightness fluctuations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a display device operates continuously, then productivity is improved, but brightness degradation occurs due to temporary brightness fluctuations
Solution Approach 1:
The patent applies preliminary action by detecting changes in display data before they cause noticeable brightness degradation. The detecting circuit monitors display data changes in advance, and the compensation circuit pre-adjusts the compensation brightness level to prevent brightness instability before it occurs, rather than reacting after degradation is visible.
Solution Approach 2:
The patent implements feedback by continuously detecting display data changes and using this information to dynamically adjust the compensation brightness level. The detecting circuit provides real-time feedback on display data variations, and the compensation circuit responds by adjusting the compensation signal to maintain stable display brightness during continuous operation.
2Illumination intensity
If compensation brightness level is increased continuously, then display brightness stability is improved, but energy consumption increases
Solution Approach 1:
The patent applies dynamics by making the compensation brightness level adjustable rather than fixed. The compensation circuit dynamically changes the compensation brightness level based on the degree of display data change detected by the detecting circuit, allowing the system to consume more energy only when necessary to maintain brightness stability during significant transitions, and consume less energy during stable periods.
Solution Approach 2:
The patent implements parameter changes by varying the compensation brightness level parameter according to display data change magnitude. When display data changes exceed a predetermined degree, the compensation brightness level is increased; when changes are within acceptable limits, the compensation level is reduced or maintained at baseline, optimizing energy consumption while maintaining display quality.
3Illumination intensity
If compensation circuit dynamically adjusts brightness level, then display quality is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the compensation function into two separate circuits: a detecting circuit that monitors display data changes and a compensation circuit that adjusts the compensation brightness level. This segmentation allows each circuit to perform its specific function with simple, dedicated logic, reducing the overall complexity compared to a single complex compensation system while achieving dynamic brightness adjustment.
Data Source
AI summary
Display processing circuits and compensation methods are provided. The display processing circuit is adapted to compensate an electroluminescence (EL) display device. The display compensation circuit comprises a detecting circuit and a compensation circuit. The detecting circuit is configured to determine a degree of change of a display data within a first time length. The compensation circuit is configured to increase a compensation brightness level applied to the display data when the degree of change is less than a predetermined degree.