Lens assembly, display module, and electronic device

A display module, comprising:

• a lens assembly;
• and
• a display screen configured to emit light to the lens assembly,
• wherein the lens assembly comprises:
• a first lens, the first lens comprising a first surface and an opposite second surface;
• and
• a semi-transmissive and semi-reflective film arranged on the first surface of the first lens, the semi-transmissive and semi-reflective film comprising a modulation film layer and a medium film layer, the modulation film layer being arranged on the first surface of the first lens, the medium film layer being arranged on a side of the modulation film layer away from the first lens, the medium film layer and the modulation film layer being configured to cooperatively adjust a refractive index of the semi-transmissive and semi-reflective film, so as to allow circularly polarized light incident on the semi-transmissive and semi-reflective film at different incident angles to remain as the circularly polarized light after entering the first lens.

An electronic device, comprising:

• a body;
• and
• a display module, the display module being integrated with the body and comprises a lens assembly and a display screen configured to emit light to the lens assembly,
• wherein the lens assembly comprises:
• a first lens, the first lens comprising a first surface and an opposite second surface;
• and
• a semi-transmissive and semi-reflective film arranged on the first surface of the first lens, the semi-transmissive and semi-reflective film comprising a modulation film layer and a medium film layer, the modulation film layer being arranged on the first surface of the first lens, the medium film layer being arranged on a side of the modulation film layer away from the first lens, the medium film layer and the modulation film layer being configured to cooperatively adjust a refractive index of the semi-transmissive and semi-reflective film, so as to allow circularly polarized light incident on the semi-transmissive and semi-reflective film at different incident angles to remain as the circularly polarized light after entering the first lens.