Shenzhen Goodix Technology has been granted a patent for a fingerprint identification method for electronic devices. The method involves capturing light signals through a filter unit under the display screen to determine the fingerprint identification environment and adjust capturing parameters accordingly. The technology aims to enhance fingerprint recognition accuracy. GlobalData’s report on Shenzhen Goodix Technology gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Shenzhen Goodix Technology, AI-assisted biometric recognition was a key innovation area identified from patents. Shenzhen Goodix Technology's grant share as of February 2024 was 48%. Grant share is based on the ratio of number of grants to total number of patents.
Fingerprint identification method using color filter layer under display screen
A recently granted patent (Publication Number: US11928885B2) discloses a fingerprint identification method and apparatus designed for use in electronic devices with under-screen fingerprint sensors. The method involves capturing a light signal transmitted through filter units above specific pixels, determining the fingerprint identification environment based on the intensity of the light signal, and adjusting capturing parameters accordingly to capture the fingerprint light signal for identification purposes. The filter units include red and blue filters, with different intensity thresholds indicating strong light, normal, or specific environments. The apparatus comprises a pixel array, a color filter layer with filter units, and a processor to determine the environment and adjust capturing parameters accordingly.
Furthermore, the patent details the distribution of filter units on the color filter layer, with options for uniform or non-uniform distribution, as well as placement in edge regions. The apparatus also includes additional components such as light shielding layers and micro-lens arrays to enhance the fingerprint capturing process. The processor within the apparatus calculates adjustment amounts for capturing parameters based on ambient light variations, ensuring optimal fingerprint identification under different lighting conditions. Overall, the patented technology aims to improve the accuracy and efficiency of fingerprint identification in electronic devices with under-screen sensors, offering a sophisticated method and apparatus for reliable biometric authentication.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
