Display Panel Electrode Shift Layout for Sensing Transmittance
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Solution Overview
Problem
Current display panels face challenges in achieving high sensitivity for electronic modules due to limitations in transmittance and resolution, particularly in areas where sensing regions and display regions overlap, leading to reduced efficiency in signal transmission and reception.
Innovation Solution
The display panel is designed with distinct regions, including a first display region with high resolution and a second display region with lower resolution but higher transmittance, where the second display region has a specific configuration of pixel electrodes and emission layers to enhance transmittance by optimizing the overlap and spacing of these elements, allowing for increased sensitivity of electronic modules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the display panel uses a conventional design with pixel electrodes and emission layers fully overlapping to ensure high resolution, then the resolution is improved, but the transmittance deteriorates
Solution Approach 1:
The display panel is divided into two distinct regions: a first display region with high resolution where pixel electrodes and emission layers overlap, and a second display region with lower resolution but higher transmittance where the pixel electrodes are shifted relative to the emission layers. This segmentation allows each region to be optimized for its specific function.
Solution Approach 2:
Different regions of the display panel are assigned different structural characteristics. The first display region has fully overlapping pixel electrodes and emission layers for high resolution, while the second display region has shifted electrodes to maximize transmittance. This local differentiation resolves the contradiction by allowing both high resolution and high transmittance in different areas.
2Measurement precision
If the display panel increases the overlap area between pixel electrodes and emission layers to improve resolution, then the resolution is improved, but the sensitivity of electronic modules deteriorates
Solution Approach 1:
The display panel is segmented into regions with different overlap characteristics. The second display region specifically has shifted pixel electrodes relative to emission layers, creating areas with reduced overlap that serve as sensing regions for electronic modules, thereby maintaining sensitivity while preserving display functionality.
Solution Approach 2:
The structure is optimized locally in the second display region where electronic modules are positioned. By shifting the pixel electrodes relative to the emission layers in this specific region, the patent creates optimal conditions for both display performance and electronic module sensitivity.
3Ease of manufacture
If the display panel uses a uniform structure across the entire display area, then the manufacturing process is simplified, but the performance for different functions (display and sensing) deteriorates
Solution Approach 1:
The display panel is divided into functionally distinct regions with different structural characteristics. This segmentation allows the panel to perform multiple functions (high-resolution display and electronic module sensing) simultaneously, enhancing adaptability while maintaining a relatively straightforward manufacturing process that builds upon conventional structures.
Data Source
AI summary
Disclosed are display panels and display devices. The display panel comprises a base layer which includes a first region and a second region having a first sub-region and a second sub-region, first pixels in the first region, and second pixels in the first sub-region. Each of the first and second pixels includes a pixel electrode, an emission layer on the pixel electrode, and a common electrode on the emission layer. The pixel electrode is shifted relative to the emission layer in a direction away from the second sub-region.