Display Circuit Layout for Biometric Sensing Without Resolution Loss
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display devices face challenges in integrating biometric sensing capabilities without compromising display resolution or requiring significant redesigns.
Innovation Solution
A display device design that includes a pixel driving circuit portion and a sensor driving circuit portion partially overlapping, with a light-receiving element located between light-emitting areas, allowing for biometric sensing without reducing resolution by utilizing the existing substrate space efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a light-receiving element is added to the display device for biometric sensing, then sensing capability is improved, but display resolution may be compromised due to space occupation
Solution Approach 1:
The light-receiving element is positioned between existing light-emitting areas in the planar structure, utilizing the vertical arrangement and spacing between pixels rather than adding horizontal space. This dimensional approach allows sensing functionality to be integrated within the existing pixel matrix without reducing the number of display pixels, thereby maintaining display resolution while adding biometric sensing capability.
2Adaptability or versatility
If sensor driving circuit portion is integrated on the substrate, then device functionality is improved, but circuit complexity increases
Solution Approach 1:
The sensor driving circuit portion is merged with the existing pixel driving circuit portion on the same substrate. Both circuit portions share common substrate space and potentially common manufacturing processes, allowing the sensor driving functionality to be integrated without requiring separate circuit boards or additional complex interconnections. This merging approach reduces overall device complexity while maintaining enhanced sensing capabilities.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables biometric sensing capabilities while maintaining high display resolution by optimizing the use of substrate space for both pixel and sensor circuits, enhancing user interaction without compromising image quality.
Implementation Method 1
a light-receiving element electrically connected to the sensor driving circuit portion
Data Source
AI summary
A display device includes: a pixel driving circuit portion located on a substrate, a sensor driving circuit portion located on the pixel driving circuit portion, a light-emitting element electrically connected to the pixel driving circuit portion, and a light-receiving element electrically connected to the sensor driving circuit portion. Accordingly, a sufficient space in which the pixel driving circuit portion and the sensor driving circuit portion are located may be secured, and a circuit layer suitable for a high-resolution display device may be provided.