The invention relates to an optical film, a display device, a head-up display and traffic equipment. The optical film comprises a film main body, the film main body comprises a plurality of first laminated structures, each first laminated structure comprises a first refractive index layer and a second refractive index layer which are arranged in a laminated mode, the film main body is configured to reflect incident light of a first characteristic, the light of the first characteristic comprises at least one spectral band or spectral line, and the spectral band or spectral line comprises at least one first refractive index layer and at least one second refractive index layer. The half-peak width of the at least one spectral band or spectral line is smaller than or equal to 60 nm, the reflectivity of the optical film is larger than or equal to a first preset value and smaller than or equal to a second preset value, and the first preset value is smaller than the second preset value; the light with the first characteristic is a light with a P polarization state. The improved optical film is adopted as the transflective film in the display device of the head-up display, the overall transmittance of natural light can be improved, and the display effect of the head-up display can be improved.
本公开涉及一种光学膜、显示装置、抬头显示器和交通设备。该光学膜包括膜主体,膜主体包括多个第一层叠结构,所述第一层叠结构包括层叠设置的第一折射率层和第二折射率层,所述膜主体被配置为对入射的第一特性的光线进行反射,所述第一特性的光线包括至少一个谱带或谱线,所述至少一个谱带或谱线的半峰宽小于或等于60nm,所述光学膜的反射率大于或等于第一预设值,且小于或等于第二预设值,所述第一预设值小于所述第二预设值;所述第一特性的光线为具有P偏振态的光线。本公开采用改进的光学膜作为抬头显示器的显示装置中的透反膜,可以提高自然光线的整体透过率,并且可以提高抬头显示器的显示效果。
Optical film, display device, head-up display and traffic equipment
光学膜、显示装置、抬头显示器和交通设备
2024-03-12
Patent
Electronic Resource
Chinese
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