Display Panel Driver for Multi-Resolution Image Sticking Compensation
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Solution Overview
Problem
Existing display devices face challenges in accurately performing image sticking compensation due to discrepancies between input image resolution and display panel resolution, leading to inaccurate reflection of pixel deterioration.
Innovation Solution
A display panel driver selects compensation data with varying resolutions, accumulates input image data to generate intermediate stress data, and converts this data to a reference resolution to generate accurate accumulated stress data, ensuring accurate compensation for image sticking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the accumulated stress data is generated based on input resolution, then the processing is simpler, but the data does not accurately reflect the deterioration degree of pixels when input resolution differs from display panel resolution
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the resolution parameter of accumulated stress data to match the display panel resolution. When input resolution differs from display panel resolution, the system converts the accumulated stress data from input resolution to display panel resolution, ensuring accurate reflection of pixel deterioration while maintaining processing efficiency through standardized resolution parameters.
2Measurement precision
If compensation data with different resolutions is stored, then compensation accuracy for various input resolutions is improved, but memory usage and system complexity increase
Solution Approach 1:
The patent applies preliminary action by pre-calculating and storing compensation data for multiple resolutions. This allows the system to quickly select the appropriate compensation data based on the current input resolution without performing complex real-time calculations, thereby improving compensation accuracy while managing system complexity through pre-prepared data sets.
Solution Approach 2:
The patent applies universality by creating a multi-resolution compensation data system that can handle various input resolutions using a single unified approach. The display panel driver is designed to work with multiple resolution types, making the compensation mechanism universally applicable across different input scenarios without requiring separate systems for each resolution.
Data Source
AI summary
A display device includes: a display panel; and a display panel driver to generate a data signal based on input image data, and generate a data voltage based on the data signal to provide the data voltage to the display panel. The display panel driver is further to: select compensation data from among first to K-th compensation data having different resolutions from each other, where K is a positive integer of 2 or more, the compensation data corresponding to an input resolution of the input image data; compensate for the input image data to generate the data signal by using the compensation data corresponding to the input resolution; accumulate the input image data to generate intermediate accumulated stress data; and change a resolution of the intermediate accumulated stress data to a reference resolution to generate accumulated stress data.