LG Display has been granted a patent for a display apparatus featuring multiple thin film transistors (TFTs) with distinct semiconductor patterns, including polysilicon and oxide semiconductors. The design incorporates gate electrodes and insulating layers, enhancing functionality in both display and non-display areas of the substrate. GlobalData’s report on LG Display 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 LG Display, Under-screen fingerprint recognition was a key innovation area identified from patents. LG Display's grant share as of July 2024 was 63%. Grant share is based on the ratio of number of grants to total number of patents.
Display apparatus with multiple thin film transistors
The patent US12075661B2 describes a display apparatus that integrates multiple thin film transistors (TFTs) within a substrate featuring both display and non-display areas. The apparatus includes a second thin film transistor in the display area, which utilizes a second oxide semiconductor and is configured with a gate electrode, source, and drain electrodes. A first conductive pattern connects to either the source or drain of this second transistor, while a second buffer layer, including a silicon nitride layer, is positioned between the second semiconductor pattern and the first conductive pattern. Additionally, the claims outline the presence of a first thin film transistor in the display area, which employs a first polysilicon semiconductor pattern, and a fourth thin film transistor located in the non-display area.
Further claims elaborate on the configuration of these transistors, specifying their roles as driving or switching transistors. The apparatus also includes a third thin film transistor in the non-display area, which is constructed similarly to the others, with a distinct semiconductor pattern. The claims detail the relationships between the various conductive patterns and insulating layers, emphasizing the differences in thickness between these layers. The design aims to optimize the functionality of the display apparatus by ensuring effective connections and interactions between the transistors, thereby enhancing performance in display applications.
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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.
