LG Display has been granted a patent for a display panel design that includes a substrate, light-emitting element, reference voltage line, and branch line with a semiconductor layer overlapping the emission region. The innovative design allows for efficient light emission in the direction 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 February 2024 was 65%. Grant share is based on the ratio of number of grants to total number of patents.
Display panel with reference voltage line and branch line
A recently granted patent (Publication Number: US11925084B2) discloses a display panel with unique features aimed at improving performance. The panel includes a substrate, a light-emitting element with an emission region, a reference voltage line, and a branch line connected to apply a reference voltage to the light-emitting element. Notably, the branch line incorporates a semiconductor layer that overlaps the emission region, enhancing the efficiency of light emission. Additionally, the panel features a pixel circuit, power line, data line, and gate line to drive the light-emitting element effectively.
Furthermore, the patent details the arrangement of the branch line and reference voltage line on different layers, connected through a contact hole. The branch line can be single-layered or multi-layered, with the latter crossing over the data line for optimized functionality. The display panel also includes a transparent anode, a bank structure, and specific configurations of the branch line to ensure precise application of voltage to the transparent anode. These innovative design elements contribute to the overall performance and functionality of the display panel, making it a promising development in the field of display technology.
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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.
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.
