Display apparatus, electronic device, and vehicle
The present disclosure relates to apparatuses for display. An example display apparatus includes a picture generation unit, an imaging reflector, a detection unit, and at least one processor. The picture generation unit is configured to generate an image, and send image light of the image to the imaging reflector. The imaging reflector is configured to reflect the image light to generate a virtual image of the image. The detection unit is configured to collect first signal light transmitted through the imaging reflector, where the first signal light is light reflected by an eye of a user viewing the virtual image. The at least one processor is configured to determine a location of the eye of the user based on the first signal light collected by the detection unit, where a propagation direction of the image light reflected by the imaging reflector is parallel to a propagation direction of the first signal light.
1 . An apparatus, comprising: a picture generation unit, an imaging reflector, a detection unit, and at least one processor, wherein:
the detection unit is deployed on a rear side of the imaging reflector;
the picture generation unit is configured to generate an image, and send image light of the image to the imaging reflector;
the imaging reflector is configured to reflect the image light to generate a virtual image of the image;
the detection unit is configured to collect first signal light transmitted through the imaging reflector, wherein the first signal light is light reflected by an eye of a user viewing the virtual image;
the at least one processor is configured to determine a location of the eye of the user based on the first signal light collected by the detection unit;
a propagation direction of the image light reflected by the imaging reflector is parallel to a propagation direction of the first signal light; and
the imaging reflector is configured to reflect first polarized light and transmit second polarized light, wherein polarization directions of the first polarized light and the second polarized light are perpendicular to each other, the image light is the first polarized light, and the first signal light is the second polarized light.
2 . The apparatus according to claim 1 , wherein a curvature of a front surface of the imaging reflector is consistent with a curvature of a rear surface of the imaging reflector.
3 . The apparatus according to claim 1 , wherein a curvature of a front surface of the imaging reflector is inconsistent with a curvature of a rear surface of the imaging reflector.
4 . The apparatus according to claim 3 , wherein:
the apparatus further comprises a lens, and the lens is deployed between the imaging reflector and the detection unit; and
the lens is configured to perform light compensation on the first signal light transmitted through the imaging reflector, and transmit the first signal light after the light compensation to the detection unit.
5 . The apparatus according to claim 1 , wherein the detection unit is deployed on a connecting line between an observation location and the virtual image generated by the imaging reflector, and the observation location is the location of the eye of the user viewing the virtual image.
6 . The apparatus according to claim 5 , wherein the connecting line is perpendicular to the virtual image and passes through a center of the virtual image.
7 . The apparatus according to claim 1 , wherein:
the at least one processor is further configured to generate image correction information based on the first signal light collected by the detection unit, and send the image correction information to the picture generation unit; and
the picture generation unit is further configured to adjust the generated image based on the image correction information.
8 . The apparatus according to claim 1 , wherein the imaging reflector is a display window.
9 . The apparatus according to claim 1 , wherein the image light reflected by the imaging reflector is reflected by a transparent reflector, to form the virtual image of the image.
10 . The apparatus according to claim 9 , wherein the transparent reflector is a front windshield of a vehicle.
11 . The apparatus according to claim 1 , wherein the imaging reflector is coated with a polarizing film that is configured to reflect the first polarized light and transmit the second polarized light.
12 . A vehicle, comprising a display apparatus, wherein the display apparatus comprises: a picture generation unit, an imaging reflector, a detection unit, and at least one processor, and wherein:
the detection unit is deployed on a rear side of the imaging reflector;
the picture generation unit is configured to generate an image, and send image light of the image to the imaging reflector;
the imaging reflector is configured to reflect the image light to generate a virtual image of the image;
the detection unit is configured to collect first signal light transmitted through the imaging reflector, wherein the first signal light is light reflected by an eye of a user viewing the virtual image;
the at least one processor is configured to determine a location of the eye of the user based on the first signal light collected by the detection unit;
a propagation direction of the image light reflected by the imaging reflector is parallel to a propagation direction of the first signal light; and
the imaging reflector is configured to reflect first polarized light and transmit second polarized light, wherein polarization directions of the first polarized light and the second polarized light are perpendicular to each other, the image light is the first polarized light, and the first signal light is the second polarized light.
13 . The vehicle according to claim 12 , wherein a curvature of a front surface of the imaging reflector is consistent with a curvature of a rear surface of the imaging reflector.
14 . The vehicle according to claim 12 , wherein a curvature of a front surface of the imaging reflector is inconsistent with a curvature of a rear surface of the imaging reflector.
15 . The vehicle according to claim 14 , wherein:
the display apparatus further comprises a lens, and the lens is deployed between the imaging reflector and the detection unit; and
the lens is configured to perform light compensation on the first signal light transmitted through the imaging reflector, and transmit the first signal light after the light compensation to the detection unit.
16 . The vehicle according to claim 12 , wherein the detection unit is deployed on a connecting line between an observation location and the virtual image generated by the imaging reflector, and the observation location is the location of the eye of the user viewing the virtual image.
17 . The vehicle according to claim 16 , wherein the connecting line is perpendicular to the virtual image and passes through a center of the virtual image.
18 . The vehicle according to claim 12 , wherein:
the at least one processor is further configured to generate image correction information based on the first signal light collected by the detection unit, and send the image correction information to the picture generation unit; and
the picture generation unit is further configured to adjust the generated image based on the image correction information.
19 . The vehicle according to claim 12 , wherein the imaging reflector is a display window.
20 . The vehicle according to claim 12 , wherein the imaging reflector is coated with a polarizing film that is configured to reflect the first polarized light and transmit the second polarized light.