Three-dimensional display device

1 . A three-dimensional display device, comprising:

a first display module comprising a first display light source, a first retroreflective component, and a first light splitting component, wherein display light emitted by the first display light source exits the first light splitting component and forms a first floating image; and

a second display module comprising a second display light source, a second retroreflective component, and a second light splitting component, wherein display light emitted by the second display light source exits the second light splitting component and forms a second floating image;

wherein one end of the first light splitting component abuts one end of the second light splitting component, an included angle between a plane where the first light splitting component is located and a plane where the second light splitting component is located is greater than 0 and less than or equal to 90 degrees, and the first floating image and the second floating image partially overlap;

wherein a first end of the first display light source abuts a first end of the first retroreflective component, a second end of the first display light source abuts a first end of the first light splitting component, a second end of the first retroreflective component abuts a second end of the first light splitting component, and the first display light source and the first retroreflective component are nonparallel to the first light splitting component; and

wherein a first end of the second display light source abuts a first end of the second retroreflective component, a second end of the second display light source abuts a first end of the second light splitting component, a second end of the second retroreflective component abuts a second end of the second light splitting component, and the second display light source and the second retroreflective component are nonparallel to the second light splitting component.

2 . The three-dimensional display device of claim 1 , wherein the first display light source comprises a first display panel, and the second display light source comprises a second display panel.

3 . The three-dimensional display device of claim 2 , wherein the first end of the first light splitting component abuts the first end of the second light splitting component.

4 . The three-dimensional display device of claim 3 , wherein display light emitted by the first display panel is converted by the first light splitting component, the first retroreflective component, the first light splitting component, and the second light splitting component sequentially to form the first floating image; and

display light emitted by the second display panel is converted by the second light splitting component, the second retroreflective component, and the second light splitting component sequentially to form the second floating image.

5 . The three-dimensional display device of claim 3 , wherein a length of the first light splitting component is greater than or equal to a length of the first retroreflective component, and the length of the first retroreflective component is greater than or equal to a length of the first display panel; and a length of the second light splitting component is greater than or equal to a length of the second retroreflective component, and the length of the second retroreflective component is greater than or equal to a length of the second display panel.

6 . The three-dimensional display device claim 5 , wherein the first display panel is perpendicular to the first retroreflective component; and the second display panel is perpendicular to the second retroreflective component.

7 . The three-dimensional display device of claim 6 , wherein the first display panel is parallel to the second retroreflective component.

8 . The three-dimensional display device of claim 1 , wherein both the first light splitting component and the second light splitting component are beam-splitter mirrors, and both the first retroreflective component and the second retroreflective component are retroreflective films.

9 . The three-dimensional display device of claim 2 , wherein both the first light splitting component and the second light splitting component are beam-splitter mirrors, and both the first retroreflective component and the second retroreflective component are retroreflective films.

10 . The three-dimensional display device of claim 1 , wherein both the first light splitting component and the second light splitting component are reflective polarizers; the first retroreflective component comprises a first retroreflective film and a first quarter-wave plate, and the first quarter-wave plate is disposed on one side of the first retroreflective film adjacent to the first light splitting component; and the second retroreflective component comprises a second retroreflective film and a second quarter-wave plate, and the second quarter-wave plate is disposed on one side of the second retroreflective film adjacent to the second light splitting component.

11 . The three-dimensional display device of claim 2 , wherein both the first light splitting component and the second light splitting component are reflective polarizers; the first retroreflective component comprises a first retroreflective film and a first quarter-wave plate, and the first quarter-wave plate is disposed on one side of the first retroreflective film adjacent to the first light splitting component; and the second retroreflective component comprises a second retroreflective film and a second quarter-wave plate, and the second quarter-wave plate is disposed on one side of the second retroreflective film adjacent to the second light splitting component.

12 . The three-dimensional display device of claim 1 , wherein the first display light source comprises a first display panel and a first flat reflector, and the first display panel, the first flat reflector, the first light splitting component, and the first retroreflective component abut to each other in sequence by end-to-end; and the second display light source comprises a second display panel and a second flat reflector, and the second flat reflector, the second display panel, the second retroreflective component, and the second light splitting component abut to each other in sequence by end-to-end.

13 . The three-dimensional display device of claim 12 , wherein a first end of the first flat reflector abuts a first end of the first light splitting component, a first end of the second retroreflective component abuts a first end of the second light splitting component, and the first end of the first light splitting component abuts the first end of the second light splitting component.

14 . The three-dimensional display device of claim 13 , wherein display light emitted by the first display panel is converted by the first flat reflector, the first light splitting component, the first retroreflective component, the first light splitting component, and the second light splitting component sequentially to form the first floating image; and display light emitted by the second display panel is converted by the second flat reflector, the second light splitting component, the second retroreflective component, and the second light splitting component sequentially to form the second floating image.

15 . The three-dimensional display device of claim 13 , wherein a length of the first light splitting component is greater than or equal to a length of the first retroreflective component, the length of the first retroreflective component is greater than or equal to a length of the first flat reflector, and the length of the first flat reflector is greater than or equal to a length of the first display panel; and a length of the second light splitting component is greater than or equal to a length of the second retroreflective component, the length of the second retroreflective component is greater than or equal to a length of the second flat reflector, and the length of the second flat reflector is greater than or equal to a length of the second display panel.

16 . The three-dimensional display device of claim 15 , wherein the first retroreflective component is parallel to the first display panel, the second retroreflective component is parallel to the second display panel, and the first retroreflective component is perpendicular to the second retroreflective component.

17 . The three-dimensional display device of claim 15 , wherein a second end of the first flat reflector abuts a first end of the first display panel;

the first display module further comprises a first sub-rotating part and a second sub-rotating part, the first sub-rotating part is rotationally connected to the second end of the first flat reflector, and the second sub-rotating part is rotationally connected to the first end of the first display panel;

the first display module has a first state and a second state;

in the first state, the first flat reflector is located at a first position, and the first display panel is located at a second position;

in the second state, the first flat reflector is located at a third position, and the first display panel is located at a fourth position; and

an included angle between the fourth position and the second position is twice an included angle between the third position and the first position.

18 . The three-dimensional display device of claim 16 , wherein a second end of the first flat reflector abuts a first end of the first display panel;

the first display module further comprises a first sub-rotating part and a second sub-rotating part, the first sub-rotating part is rotationally connected to the second end of the first flat reflector, and the second sub-rotating part is rotationally connected to the first end of the first display panel;

the first display module has a first state and a second state;

in the first state, the first flat reflector is located at a first position, and the first display panel is located at a second position;

in the second state, the first flat reflector is located at a third position, and the first display panel is located at a fourth position; and

an included angle between the fourth position and the second position is twice an included angle between the third position and the first position.

19 . The three-dimensional display device of claim 17 , wherein a second end of the second display panel abuts a first end of the second flat reflector;

the second display module further comprises a third sub-rotating part and a fourth sub-rotating part, the third sub-rotating part is rotationally connected to the first end of the second flat reflector, and the fourth sub-rotating part is rotationally connected to the second end of the second display panel;

the second display module has a third state and a fourth state;

in the third state, the second flat reflector is located at a fifth position, and the second display panel is located at a sixth position;

in the fourth state, the second flat reflector is located at a seventh position, and the second display panel is located at an eighth position; and

an included angle between the eighth position and the sixth position is twice an included angle between the seventh position and the fifth position.

20 . The three-dimensional display device to claim 18 , wherein a second end of the second display panel abuts a first end of the second flat reflector;

the second display module further comprises a third sub-rotating part and a fourth sub-rotating part, the third sub-rotating part is rotationally connected to the first end of the second flat reflector, and the fourth sub-rotating part is rotationally connected to the second end of the second display panel;

the second display module has a third state and a fourth state;

in the third state, the second flat reflector is located at a fifth position, and the second display panel is located at a sixth position;

in the fourth state, the second flat reflector is located at a seventh position, and the second display panel is located at an eighth position; and

an included angle between the eighth position and the sixth position is twice an included angle between the seventh position and the fifth position.