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Optical film, preparation method thereof, head-up display and vehicle

A head-up display and optical film technology, applied in the field of vehicles, can solve the problems of heating up and affecting the life of the head-up display, etc.

Pending Publication Date: 2022-06-07
INTERFACE TECH CHENGDU CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When the existing head-up display is applied to a vehicle, there is a problem of backflow of sunlight, which causes the device (such as an image generation unit) in the head-up display to heat up, and affects the life of the head-up display

Method used

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  • Optical film, preparation method thereof, head-up display and vehicle
  • Optical film, preparation method thereof, head-up display and vehicle
  • Optical film, preparation method thereof, head-up display and vehicle

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Embodiment Construction

[0064] The head up display (HUD) technology, also known as the head-up display technology, has been gradually applied more and more widely in the automotive field, the aerospace field and the navigation field in recent years. For example, it can be applied to vehicles, and can also be applied to other vehicles such as airplanes, aerospace vehicles, and ships. For convenience of description, in this application, the vehicle-mounted HUD is used as an example for description. However, it should be understood that this should not be taken as a limitation of the present application.

[0065] Specifically, the head-up display uses the principle of optical reflection to project important driving-related information (such as driving speed, battery voltage, water temperature, engine speed, vehicle fuel consumption, navigation route, etc.) In the eyes of the driver, assist the driver to drive the vehicle, avoid the driver being distracted by looking down at the instrument panel during ...

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PUM

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Abstract

The embodiment of the invention relates to the technical field of display, aims to solve the problem that sunlight flows backward in an existing head-up display, and provides an optical film, a preparation method thereof, a head-up display and a vehicle. The optical film comprises a transparent base material, a transparent microstructure layer located on the base material and a plurality of light blocking layers. The microstructure layer includes a base portion in direct contact with a surface of the base material and a plurality of protrusions protruding from the base portion toward a side away from the base material. Each light blocking layer partially covers one protruding part and comprises an absorbing film for absorbing light or a reflecting film for reflecting light. The head-up display applying the optical film can prevent sunlight from flowing backwards, and the service life of the head-up display is prolonged.

Description

technical field [0001] The present application relates to the field of display technology, and in particular, to an optical film, a preparation method thereof, a head-up display using the optical film, and a vehicle using the head-up display. Background technique [0002] When the existing head-up display is applied to a vehicle, there is a problem of sunlight backflow, which causes the temperature of the device (eg, the image generating unit) in the head-up display, which affects the life of the head-up display. SUMMARY OF THE INVENTION [0003] A first aspect of the present application provides an optical film, comprising: [0004] transparent substrate; [0005] A transparent microstructured layer on the substrate, the microstructured layer comprising a base portion in direct contact with the surface of the substrate and a plurality of protruding portions from the base portion toward a side away from the substrate protrusions; and [0006] A plurality of light-blocki...

Claims

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Application Information

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IPC IPC(8): G02B27/01
CPCG02B27/0101G02B5/045B60K35/00B60K35/23B60K2360/25B60K35/415B60K35/425B60K35/28B60K2360/23B60K2360/166B60K2360/167
Inventor 陈彦伶
Owner INTERFACE TECH CHENGDU CO LTD
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