Time-Sharing Image Processing Module for Full-Screen Touch Panels
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Solution Overview
Problem
The integration of a fingerprint identification module into a display panel limits the full screen design of touch panels, as it occupies non-display regions, making it difficult to achieve a full screen solution that also accommodates front-camera functionality.
Innovation Solution
A touch panel with an image processing module that performs fingerprint identification and image capturing in a time-sharing manner, allowing the module to be integrated under the touch film layer and within the display region, eliminating the need for additional frames and enabling a full screen design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fingerprint identification module is arranged in the non-display region, then fingerprint identification function is achieved, but full screen design is limited
Solution Approach 1:
The patent merges the fingerprint identification module with the display region by integrating it into the touch film layer structure. The fingerprint identification module is combined with the touch sensor structure, allowing both functions to coexist in the same spatial region. This merging eliminates the need for separate non-display regions and achieves full screen design while maintaining fingerprint identification functionality.
Solution Approach 2:
The touch film layer is designed to serve multiple functions: it acts as both the touch sensing layer and the fingerprint identification module. By making the touch film layer universal, it can perform both touch detection and fingerprint recognition without requiring additional dedicated components, thus achieving full screen utilization.
2Adaptability or versatility
If a front-camera is arranged in the non-display region, then image capturing function is achieved, but full screen design is limited
Solution Approach 1:
The patent merges the front-camera with the display region by integrating it into the touch film layer structure. The camera is combined with the touch sensor structure, allowing both functions to coexist in the same spatial region. This merging eliminates the need for separate non-display regions and achieves full screen design while maintaining image capturing functionality.
Solution Approach 2:
The touch film layer is designed to serve multiple functions: it acts as both the touch sensing layer and the home key structure, and also houses the front-camera. By making the touch film layer universal, it can perform multiple functions without requiring additional dedicated components, thus achieving full screen utilization.
3Area of stationary object
If fingerprint identification module and front-camera are integrated in the same region, then full screen design is achieved, but module complexity increases
Solution Approach 1:
The patent segments the fingerprint identification module into two functional parts: a first module for collecting fingerprint images and a second module for processing these images. This segmentation allows each module to be optimized independently while working together, reducing the overall complexity of integrating multiple functions in the same region.
Solution Approach 2:
The patent implements periodic action by having the first and second modules operate in a time-sharing manner. The fingerprint identification module collects images periodically and the processing module processes them in alternating time cycles, allowing both functions to share the same spatial region without simultaneous operational conflicts, thus reducing integration complexity.
Data Source
AI summary
Fingerprint identification control methods, touch panels and display devices are provided. The touch panel includes a substrate, a touch film layer arranged on a side of the substrate, an image processing module arranged on a position corresponding to a preset region of the touch film layer, and the image processing module includes a first module and a second module performing fingerprint identification and image capturing in a time share manner.