Optical waveguide device, display device and display device

Abstract

An embodiment of the present invention provides an optical waveguide device, a display device, and a display device, including an optical waveguide dielectric body, a first polarizing reflection layer, and an optical structure layer; the optical waveguide dielectric body includes opposite first surfaces and second surfaces, and the first A polarized reflective layer is disposed on the first surface, and the optical structure layer is disposed on the second surface; the optical waveguide medium is used for propagating light, and the light includes the first polarized light; the first polarized reflective layer is used for reflecting the first polarized light , transmit the second polarized light; the optical structure layer is used to convert the first polarized light incident at a preset angle into the second polarized light, and reflect the second polarized light to the first polarized reflective layer, and convert the incident polarized light at other angles The first polarized light is reflected to the first polarized reflective layer. Since the output area of ​​the second polarized light is no longer limited to the area without the reflective film layer, the light output range of the optical waveguide device is increased.

Description

technical field [0001] The embodiments of the present application relate to the field of optical display technology, and in particular to an optical waveguide device, a display device, and a display device. Background technique [0002] An optical waveguide is a dielectric device that guides light waves to propagate in it, also known as a dielectric optical waveguide. Optical waveguides have become an important component of near-eye display devices due to their thinness and lightness. However, most of the current optical waveguide components use the principle of total reflection to propagate light. Although a reflective film can be formed on the surface of the optical waveguide element, so that the light that does not satisfy the total reflection condition can continue to propagate in the optical waveguide element through the reflection of the reflective film, so as to prevent the light from exiting the optical waveguide element from affecting the display effect, but this w...

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Problems solved by technology

Although a reflective film can be formed on the surface of the optical waveguide element, so that the light that does not satisfy the total reflection condition can continue to propagate in the optical waveguide element through the reflection of the reflective film, so as to prevent the light from exiting the optical waveguide element from affecting the display effect, but this will As a result, the light in the optical waveguide component can only exit in the area without a reflective film to form a display image, which greatly limits the exit range of the light

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