Multi-Driver Display Panel Synchronization for Boundary Compensation
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Solution Overview
Problem
Display devices with high resolution face challenges due to excessive calculation loads for a single driver integrated circuit, leading to inefficiencies and potential boundary compensation deviations.
Innovation Solution
A display device with multiple display panel drivers synchronized through accumulation synchronization signals to manage stress accumulation and compensation across different areas, enhancing visibility by adjusting input image data based on accumulated stress values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single driver integrated circuit is used to drive the entire display panel, then the device complexity is reduced, but the calculation load becomes excessively large and manufacturing precision deteriorates due to boundary compensation deviations
Solution Approach 1:
The display panel is divided into multiple areas (first area and second area), each driven by a separate driver integrated circuit. This segmentation reduces the calculation load on each driver while maintaining overall display performance. The boundary compensation deviations are eliminated by having dedicated drivers for each area that can independently optimize their respective regions.
2Productivity
If multiple display panel drivers are used to reduce calculation load, then processing efficiency improves, but device complexity increases and synchronization becomes challenging
Solution Approach 1:
An accumulation synchronization signal is introduced to coordinate the stress accumulation operations between the first and second display panel drivers. This feedback mechanism ensures that both drivers accumulate stress values in a synchronized manner, maintaining processing efficiency while managing the complexity of the multi-driver system through structured coordination.
3Device complexity
If stress accumulation is performed without synchronization between multiple drivers, then device complexity is reduced, but measurement precision deteriorates due to boundary compensation deviations
Solution Approach 1:
The accumulation synchronization signal is generated and distributed to the display panel drivers before the stress accumulation process begins. This preliminary action ensures that all drivers are properly synchronized and ready to accumulate stress values simultaneously, thereby improving measurement precision without significantly increasing device complexity.
Data Source
AI summary
A display device includes: a display panel including sub-pixels, a first area, and a second area, wherein the sub-pixels are disposed in the first area and the second area; a first display panel driver configured to drive the first area, to accumulate stress for the first area to generate a first stress accumulation value, and to compensate for input image data that is for the first area based on the first stress accumulation value; and a second display panel driver configured to drive the second area, to accumulate stress for the second area to generate a second stress accumulation value, and to compensate for input image data that is for the second area based on the second stress accumulation value, wherein the first display panel driver and the second display panel driver are synchronized with each other through an accumulation synchronization signal to accumulate the stress.