Display Panel Pixel Circuits With Separate Power Signals for Area Uniformity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display technologies struggle to ensure uniformity of display effects across different areas of a display panel due to separate adjustments in these areas, leading to non-uniform display outcomes.
Innovation Solution
A display panel design with distinct pixel circuits and power supply signals for different display areas, where the first pixel units receive power supply signals V1 and V2 (V1>V2) and the second pixel units receive V3 and V4 (V3>V4), with |V1−V2|≠|V3−V4|, to adjust voltage differences and driving currents separately, ensuring uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate adjustments are performed on different display areas, then each area can be optimized for its specific function, but the display uniformity across different areas deteriorates
Solution Approach 1:
The patent applies local quality by configuring different power supply voltage parameters for different display areas. Specifically, the first display area uses power supply parameters (V1, V2) while the second display area uses different parameters (V3, V4), allowing each area to be optimized for its specific function while maintaining overall uniformity through controlled parameter differences
Solution Approach 2:
The patent implements parameter changes by varying the power supply voltage parameters across different display areas. The first pixel units receive power supply signals with voltages V1 and V2, while the second pixel units receive signals with voltages V3 and V4, where the voltage differences satisfy |V1-V2|≠|V3-V4|. This parameter differentiation enables functional optimization for each area while the controlled variation maintains display uniformity
2Productivity
If different power supply signals are used for different display areas, then driving currents can be adjusted separately for optimization, but the complexity of power supply configuration increases
Solution Approach 1:
The patent applies segmentation by dividing the pixel units into at least two groups: first pixel units and second pixel units. Each group is configured with dedicated power supply signal parameters (V1, V2 for first group; V3, V4 for second group), enabling independent optimization of driving currents for different display areas while maintaining manageable system architecture through clear segmentation
Data Source
AI summary
A display panel includes: first and second display areas; first and second pixel circuits connected to light-emitting elements in the first and second display areas, respectively; and first pixel units and second pixel units, each first pixel unit comprising a first pixel circuit and a light-emitting element connected to the first pixel circuit, and each second pixel unit comprising a second pixel circuit and a light-emitting element connected to the second pixel circuit, wherein each first pixel unit includes the light-emitting element emitting light of a first color, each second pixel unit includes the light-emitting element emitting light of a second color, the first color is different from the second color, each first pixel unit is configured to receive a first power supply signal and a second power supply signal, and each second pixel unit is configured to receive a third power supply signal and a fourth power supply signal.