Touch Screen Fingerprint Identification Sub-Area Integration
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Solution Overview
Problem
Current fingerprint identification technologies on mobile devices are limited by the spatial and directional constraints of fingerprint touch control, restricting flexibility and efficiency due to the placement of fingerprint identification devices outside the display screen.
Innovation Solution
Integrating fingerprint identification elements into the touch area of a touch screen, divided into sub-areas, allowing for independent fingerprint detection and flexible touch control, with control units to manage detection and extract accurate fingerprint information for authentication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If fingerprint identification device is arranged outside the display screen (on function key or rear cover plate), then the device complexity is reduced and manufacturing is easier, but the ease of operation deteriorates due to spatial and directional limitations on touch control flexibility
Solution Approach 1:
The patent merges the fingerprint identification function with the touch screen display area by integrating fingerprint identification elements directly into the touch area. This combination allows users to perform fingerprint authentication anywhere on the touch screen surface, eliminating the spatial and directional limitations of external fingerprint devices while maintaining a unified, simpler device structure.
Solution Approach 2:
The touch screen area serves multiple functions: it acts as both the display interface and the fingerprint identification zone. The fingerprint identification elements are distributed across the touch area, enabling the same surface to perform both touch control and fingerprint authentication, thereby enhancing operational flexibility without adding separate dedicated components.
2Ease of operation
If fingerprint identification elements are distributed across the entire touch area, then the ease of operation improves due to unrestricted touch positions, but the device complexity increases due to multiple sub-areas and control units
Solution Approach 1:
The touch area is divided into multiple sub-areas, each containing fingerprint identification elements and equipped with its own control unit. This segmentation allows independent fingerprint detection in each zone while distributing the control complexity across multiple manageable units, enabling flexible touch control anywhere on the screen without overwhelming a single complex control system.
Solution Approach 2:
Each sub-area has its own control unit that independently manages fingerprint detection and processing for that specific zone. This local quality approach allows optimized control for each region's fingerprint identification needs while maintaining overall system coordination, balancing operational freedom with manageable complexity through distributed intelligence.
Data Source
AI summary
The present invention provides a touch screen, a control method thereof and a display device. The touch screen comprises a touch area used for touch display. A plurality of fingerprint identification elements are provided in the touch area and are configured to identify a fingerprint. The touch area includes a plurality of sub-areas, and the fingerprint identification elements located in each sub-area independently identify a fingerprint or a part of a fingerprint in the sub-area.