Manufacturing method of head-up display reflecting film
By preparing and designing the reflective layer and compensation layer in the head-up display device, the problems of low energy utilization, limited brightness and ghosting in the prior art are solved, and efficient beam energy utilization and driving safety improvement are achieved.
CN119717097AActive Publication Date: 2025-03-28苏州景照光电技术有限公司
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Patent Information
- Application Number
- CN202411971631.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2044-12-30
AI Technical Summary
Technical Problem
The existing head-up display device has low energy utilization, limited brightness and ghosting problems when used, which affects driving safety.
Method used
A head-up display reflective film manufacturing method is adopted, including preparing a reflective layer and a compensation layer, by spin-coating the liquid crystal layer and controlling its thickness and longitudinal period, and calculating and designing compensation layer parameters to optimize the polarization state and energy utilization of the light beam.
Benefits of technology
Effectively eliminate ghosting, improve energy utilization and brightness, ensure the effective arrival of beam energy inside and outside the car, and improve driving safety.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention discloses a method for manufacturing a head-up display reflecting film, which belongs to the field of vehicle display, and comprises the steps of preparing a reflecting layer, calculating parameters of a compensation layer, preparing the compensation layer, forming the head-up display reflecting film and the like, and the manufactured head-up display reflecting film reflects a light beam generated by a display device which is incident at a Brewster angle in a vehicle. The energy of the light beam forming the ghosting is reduced, and the ghosting is eliminated; only right-handed circularly polarized light close to the working wavelength of the display device is reflected for natural light outside a vehicle, and natural light with other wavelengths and polarization directions is transmitted, so that the head-up display reflecting film has high reflectivity and high transmittance.
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