Lite-On Technology‘s patented key module features a capacitive touch member for sensing finger movements and clicking, along with a backlight assembly comprising a circuit board, light source, light guide plate, and reflection plate. The design includes a flexible circuit board that bends when the key cap moves downward, enhancing functionality and durability. GlobalData’s report on Lite-On 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 Lite-On Technology, micro-LED wearables was a key innovation area identified from patents. Lite-On Technology's grant share as of January 2024 was 72%. Grant share is based on the ratio of number of grants to total number of patents.
Key module with capacitive touch member and backlight assembly
A recently granted patent (Publication Number: US11887791B2) discloses a key module designed with innovative features for enhanced functionality. The key module includes a bottom plate with a circuit layer and a key cap, along with a supporting structure and a capacitive touch member for sensing finger movement and clicking. Notably, a backlight assembly is positioned below the bottom plate, comprising a circuit board, light source, light guide plate, and reflection plate. A flexible circuit board is electrically connected to the touch member, passing through an opening in the circuit layer to extend alongside the bottom plate. The light emitted by the light source is directed through various holes in the bottom plate and circuit layer, ultimately illuminating the key cap for improved visibility and aesthetics.
Furthermore, the key module features additional elements such as a triggering switch aligned with specific regions of the bottom plate's hole, multiple branch regions for light transmission, and variations in the alignment of light sources with these regions. The backlight assembly also includes a light guide plate and reflection plate to optimize the distribution of light towards the key cap. The design allows for customizable configurations with different numbers of branch regions and angles between them, offering flexibility in the illumination pattern. Additionally, the incorporation of sector-shaped regions for light transmission enhances the overall visual appeal and functionality of the key module. Overall, the patent showcases a sophisticated key module design that combines practicality with aesthetic considerations, catering to the evolving needs of users in the technology sector.
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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.
