Fingerprint Identification Module Integration in Display Region
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Solution Overview
Problem
Fingerprint identification modules in display apparatuses face challenges in integration within narrow bezels, particularly due to difficulties in installing independent structures without enlarging or inserting into non-display regions, which complicates manufacturing and increases the risk of damage during the process.
Innovation Solution
The integration of fingerprint identification modules within the display region, utilizing a common substrate for touch and fingerprint identification units, and employing a second cover for structural support, reduces the bezel size and enhances protection against damage, while minimizing the number of conductive lines and manufacturing complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the fingerprint identification module is installed as an independent structure in a non-display region, then the fingerprint identification function can be provided, but the bezel size increases and manufacturing difficulty increases
Solution Approach 1:
The patent combines the fingerprint identification module with the display module by integrating the fingerprint sensor into the display region. The fingerprint identification unit and touch unit share a common substrate, eliminating the need for a separate independent module structure. This merging approach allows the fingerprint function to be provided without increasing the bezel area, as the fingerprint sensor occupies space within the display region rather than requiring additional non-display region space.
2Reliability
If the fingerprint identification module is installed as an independent structure, then the fingerprint identification function can be provided, but the manufacturing complexity and risk of damage increase
Solution Approach 1:
By merging the fingerprint identification module with the display module on a common substrate, the patent reduces manufacturing complexity. The integrated structure eliminates multiple assembly steps required for installing separate independent modules, reducing the risk of damage during installation. The fingerprint identification unit and touch unit are fabricated together as part of the display module assembly process, simplifying the overall manufacturing workflow.
3Area of stationary object
If the fingerprint identification module is integrated within the display region using a common substrate, then the bezel size is reduced and manufacturing difficulty is decreased, but the structural support and protection may be compromised
Solution Approach 1:
The common substrate serves multiple functions: it supports both the touch unit and fingerprint identification unit, provides structural strength, and enables integrated fabrication. The substrate acts as a universal platform that combines the structural support role with the functional integration role, eliminating the need for separate support structures. This multi-functionality approach maintains structural integrity while achieving compact integration.
Data Source
AI summary
A display apparatus with fingerprint identification module within the display region of the display apparatus comprises a first cover and a display module, the fingerprint identification module being between the two. The first cover defines a display region and a non-display region. The fingerprint identification module includes a first substrate, a touch unit, a fingerprint identification unit, a control unit, and a first dummy unit with a plurality of first dummy electrodes. The first dummy unit is coplanar with the fingerprint identification unit. The first dummy electrodes surround the fingerprint identification unit, and cooperate with the fingerprint identification unit to enable uniform light transmittance over the whole display region.