Array Substrate Integrating Fingerprint Electrodes with Gate Lines
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Solution Overview
Problem
Current fingerprint recognition technologies integrated into display devices face challenges in enhancing integration degree, reducing part procurement, and simplifying assembly processes while maintaining effective fingerprint recognition functionality.
Innovation Solution
An array substrate with a fingerprint recognition region featuring intersecting transmitting and sensing electrodes connected to gate lines, where the electrodes are strategically designed and layered to facilitate both scanning and transmitting signals, integrated into a display panel and device, allowing for improved integration and simplified manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fingerprint recognition component is integrated into display device, then integration degree is improved, but device complexity increases
Solution Approach 1:
The patent merges the fingerprint recognition component with the display device by integrating transmitting electrodes and sensing electrodes directly into the array substrate. The transmitting electrodes are formed in the same layer as gate lines, and sensing electrodes are formed in the same layer as data lines, combining multiple functions into a single integrated structure.
Solution Approach 2:
The array substrate serves multiple functions: it acts as both the display control substrate with gate lines and data lines, and as the fingerprint recognition sensor substrate with transmitting and sensing electrodes. This multi-functional design eliminates the need for separate fingerprint recognition modules.
2Reliability
If separate fingerprint recognition module is used, then functionality is ensured, but part procurement and assembly process become more complex
Solution Approach 1:
The fingerprint recognition electrodes are merged with the display circuitry on the same array substrate. Transmitting electrodes are electrically connected to gate lines, and sensing electrodes are electrically connected to data lines, eliminating separate connection processes and reducing assembly complexity.
3Reliability
If multiple separate components are used for fingerprint recognition, then functionality is achieved, but component quantity increases
Solution Approach 1:
The patent combines transmitting electrodes, sensing electrodes, gate lines, and data lines into a single integrated array substrate structure. This reduces the total component quantity by eliminating separate fingerprint recognition modules and their associated connection components.
Data Source
AI summary
The embodiments of the present disclosure provide an array substrate, a method for manufacturing the same, a display panel, and a display device. The array substrate includes a plurality of data lines, a plurality of gate lines, and a fingerprint recognition region located on a basal substrate. The fingerprint recognition region includes a plurality of transmitting electrodes and a plurality of sensing electrodes intersected with the plurality of transmitting electrodes. Each transmitting electrode is electrically connected to one of the plurality of gate lines.