Display Panel Transparent Electrode Layout for Under-Screen Sensors
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Solution Overview
Problem
Existing display technologies face challenges in achieving a high screen-to-body ratio and bezel-less designs, particularly when incorporating under-screen cameras or sensors, as they compromise display performance and functionality.
Innovation Solution
A display panel design with distinct regions of varying light transmittance rates, including a first region with higher light transmittance for accommodating sensors and a second region for normal display, combined with a circuit structure layer and light emitting structure layer configurations that optimize conductive layer arrangements to ensure seamless integration of under-screen components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If under-screen camera or sensor is incorporated to increase screen-to-body ratio, then screen-to-body ratio is improved, but display performance and functionality are compromised
Solution Approach 1:
The display panel is divided into multiple display regions with different light transmittance rates. The first display region has higher light transmittance rate for accommodating under-screen cameras or sensors, while the second display region has lower light transmittance rate for normal display functionality. This segmentation allows different functional requirements to be met in different regions simultaneously.
Solution Approach 2:
Different regions of the display panel are assigned different light transmittance rates according to their specific functional requirements. The first display region uses higher light transmittance to optimize camera performance, while the second display region uses lower light transmittance to optimize display quality, achieving local optimization of display performance.
2Ease of manufacture
If conductive lines are arranged to connect pixel drive circuits with light emitting devices, then electrical connection is achieved, but capacitance difference causes brightness difference
Solution Approach 1:
A shield electrode is introduced as an intermediary structure between the conductive lines and the light emitting devices. The shield electrode, connected to a constant voltage line, acts as a reference that stabilizes the capacitance environment around the conductive lines, thereby reducing capacitance differences and preventing brightness variations across different display regions.
3Adaptability or versatility
If first display region has higher light transmittance rate for sensor accommodation, then under-screen component integration is improved, but display quality in that region deteriorates
Solution Approach 1:
The display panel is segmented into multiple regions with different light transmittance characteristics. The first display region uses higher light transmittance to accommodate under-screen cameras or sensors, while the second display region uses lower light transmittance to provide optimal display quality. This segmentation allows the system to accept the trade-off in specific regions while maintaining high display quality in other regions.
Data Source
AI summary
Provided are a display panel and a display apparatus. The display panel includes a substrate, a circuit structure layer, a light emitting structure layer and multiple transparent conductive layers. The transparent conductive layer is located between the circuit structure layer and the light emitting structure layer, and includes multiple first type conductive lines and multiple second type conductive lines. The portion of the first type conductive line extending along a first direction overlaps with an orthographic projection of the shield electrode on the substrate, and the portion of the second type conductive line extending along the first direction does not overlap with an orthographic projection of the shield electrode on the substrate.