Display Panel Circuit Density Zoning for Under-Screen Optical Sensors
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Display panels with under-screen optical sensors suffer from low light transmittance due to the presence of pixel driving circuits, leading to insufficient light reception by the optical sensor and impaired functionality.
Innovation Solution
The display panel is designed with a first region having a reduced density of pixel driving circuits, arranged in a manner that creates circuit vacancy regions, allowing for improved light transmittance and uniform light distribution, enhancing the light reception by the under-screen optical sensor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If pixel driving circuits are densely arranged in the display region, then the display resolution and functionality are improved, but the light transmittance decreases and the under-screen optical sensor cannot receive sufficient light
Solution Approach 1:
The display region is divided into a first region and a second region. The first region has a lower density of pixel driving circuits to allow light transmission to the under-screen optical sensor, while the second region has a higher density for normal display functionality. This spatial segmentation resolves the contradiction by allocating different circuit densities to different functional zones.
Solution Approach 2:
Different regions of the display panel are assigned different local qualities in terms of circuit density. The first region (where the optical sensor is located) has reduced circuit density to improve light transmittance, while the second region maintains high circuit density for optimal display performance. This local differentiation allows simultaneous optimization of both light transmission and display quality.
2Illumination intensity
If pixel driving circuits are removed or reduced in the first region, then light transmittance is improved, but the display functionality and coverage are compromised
Solution Approach 1:
The display region is segmented into a first region with reduced circuit density for light transmission and a second region with full circuit density for display functionality. This segmentation allows the system to maintain overall display functionality while creating a dedicated light transmission pathway for the optical sensor.
Solution Approach 2:
The second region serves dual purposes: it provides display functionality through dense pixel driving circuits and simultaneously contributes to overall light transmission by being positioned away from the optical sensor's direct path. The first region primarily serves light transmission while maintaining minimal display coverage.
Data Source
AI summary
A display panel has a display region and a bezel region located on a periphery of the display region, and the display region includes a first region and a second region. The display panel includes a plurality of pixel driving circuits located in the first region and a plurality of pixel driving circuits located in the second region. A density of the pixel driving circuits in the first region is less than a density of the pixel driving circuits in the second region.