Transparent display device, method of manufacturing the same, and method of controlling the same

A method of manufacturing a transparent display device, comprising:

• forming a light guide plate;
• wherein a light outgoing side of the light guide plate has at least one rectangular light exit, the at least one light exit is respectively provided with a light extraction grating, and the light extraction grating is configured to extract light in the light guide plate;
• and
• forming a liquid crystal unit on the light outgoing side of the light guide plate;
• wherein the liquid crystal unit comprises an electrode layer for controlling liquid crystal molecules in a liquid crystal layer to form a liquid crystal grating, and a black matrix on a side of the liquid crystal layer away from the light guide plate;
• wherein the electrode layer comprises a plurality of strip electrodes arranged in parallel, and the black matrix comprises at least one first strip-shaped light-shielding layer extending in a first direction and at least one second strip-shaped light-shielding layer extending in a second direction;
• for one light exit of the at least one light exit, an arrangement direction of the plurality of strip electrodes is not parallel to a first rectangle edge of the light exit and not parallel to a second rectangle edge of the light exit, wherein the first rectangle edge and the second rectangle edge are perpendicular to each other;
• and
• an extension direction of an orthographic projection of one of the at least one first strip-shaped light-shielding layer on the light guide plate is parallel to the first rectangle edge and the orthographic projection of the first strip-shaped light-shielding layer on the light guide plate covers at least a center of the light exit, and an extension direction of an orthographic projection of one of the at least one second strip-shaped light-shielding layer on the light guide plate is parallel to the second rectangle edge and the orthographic projection of the second strip-shaped light-shielding layer on the light guide plate covers at least the center of the light exit.