Display Driving Circuit With Region-Specific Algorithms for Uniformity
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Solution Overview
Problem
Conventional methods for adjusting scan and data signals in liquid crystal displays struggle to ensure optimal charging times across all regions, leading to uneven display and a complex, inefficient adjustment process.
Innovation Solution
A display device with a driving circuit that includes a drive module with algorithms specific to each display region, using gamma tables to adjust source driving voltages based on actual image data to achieve uniformity and quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If phase adjustment of data signals and scanning signals is used to maintain charging time, then display uniformity can be improved in some regions, but the adjustment process becomes complicated and cannot ensure optimal charging time for all regions
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the phase of data signals and scanning signals based on the position of display regions. Different phases are applied to different regions to compensate for RC load differences, transforming a static signal approach into a dynamic, position-dependent signal approach that achieves uniformity without complex manual adjustment
Solution Approach 2:
The patent segments the display panel into multiple display regions (first display region and second display region) with different RC loads. Each region receives customized phase-adjusted signals, allowing independent optimization for each segment rather than attempting a single global adjustment, thereby simplifying the overall adjustment process while achieving uniformity across all regions
2Manufacturing precision
If separate adjustment for each scan signal and data signal is performed to achieve optimal charging time, then charging uniformity can be improved, but the adjustment process becomes complicated and efficiency decreases
Solution Approach 1:
The patent creates a universal phase adjustment mechanism that simultaneously handles multiple scan signals and data signals. By establishing a position-based phase adjustment rule that applies to all signals in each region, the system achieves multi-functionality where a single adjustment strategy serves all signals, improving efficiency while maintaining charging uniformity
3Reliability
If conventional phase adjustment method is used, then some regions can achieve near optimal charging time, but not all regions can be optimized simultaneously
Solution Approach 1:
The patent implements local quality by applying different phase adjustments to different display regions based on their specific RC load characteristics. The first display region receives one phase adjustment while the second display region receives a different phase adjustment, allowing each region to be optimized for its local conditions rather than using a one-size-fits-all approach, thereby achieving reliable charging time optimization across all regions
Data Source
AI summary
A display device includes a display unit and a driving circuit. The display unit includes a plurality of display regions. The driving circuit is configured to drive the display unit. The driving circuit includes a drive module. The drive module includes algorithms which are respectively correspond to the plurality of display regions one to one. A driving method of a display device, and a mobile terminal are also provided.