GoerTek. has filed a patent for an optical display system with a narrow angular luminance distribution. The system includes an image generating unit and an optical lens system to guide the image light output to the viewer’s eye. The image generating unit generates a polarized light output with increased efficiency. GlobalData’s report on GoerTek 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 GoerTek, Acoustic authentication was a key innovation area identified from patents. GoerTek's grant share as of January 2024 was 63%. Grant share is based on the ratio of number of grants to total number of patents.
Optical display system with narrow angular luminance distribution
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The patent application (Publication Number: US20240036322A1) describes an optical display system that includes an image generating unit producing image light with a narrow angular luminance distribution. This system incorporates an optical lens system with an exit pupil to direct the image light to the viewer's eye. The image generating unit consists of an image generating component generating polarized light and a polarization-dependent light deflection component that increases the amount of polarized light entering the exit pupil, resulting in the narrow angular luminance distribution of the deflected light.
Furthermore, the patent application details the use of a Pancharatnam-Berry phase optical element made of liquid crystal polymer as the polarization-dependent light deflection component. The orientation of the liquid crystal polymer is symmetric with respect to the optical axis of the optical lens system, allowing for control over the angular luminance distribution. The system also includes variations in the angular luminance distribution across different locations of the image generating unit to optimize light transmission through the optical lens system. Additionally, the patent application mentions the application of this optical display system in near-eye display modules and electronic devices, highlighting its potential for various technological implementations.
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