Koito Manufacturing has filed a patent for a head-up display system that includes an image generation unit and a mirror to display a predetermined image. The system utilizes a light source, optical member, and liquid crystal unit to generate and reflect the image accurately. GlobalData’s report on Koito Manufacturing 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 Koito Manufacturing, AV lighting system was a key innovation area identified from patents. Koito Manufacturing's grant share as of January 2024 was 40%. Grant share is based on the ratio of number of grants to total number of patents.

Head-up display system with image generation and reflection

Source: United States Patent and Trademark Office (USPTO). Credit: Koito Manufacturing Co Ltd

The patent application (Publication Number: US20240036311A1) describes a head-up display system designed to project a predetermined image. The system includes an image generation unit with a light source, an optical member, and a liquid crystal unit that generates the desired image. The optical member is shaped to match the distortion of the original image, ensuring accurate projection. Additionally, the system utilizes multiple light sources and convex surface portions to create a curved-line shape for optimal image formation.

Furthermore, the head-up display system incorporates a mirror to reflect light emitted by the image generation unit onto a transmission member. The system's design allows for the diffusion of light from multiple light sources through a single optical member, ensuring uniform illumination. The arrangement of the light sources and convex surface portions is optimized to match the shape of the mirror, resulting in precise image projection with varying degrees of distortion across different regions of the predetermined image. This innovative design enables the system to project horizontally-long rectangular images with customizable distortion levels for different regions, enhancing the overall display quality and user experience.

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