Stereoscopic display device and method for manufacturing the same
The embodiments of the present invention provide a stereoscopic display device and a method for manufacturing the same, relating to the technical field of display; the stereoscopic display device and the method for manufacturing the same can reduce Moire fringe phenomenon during displaying of a naked eye 3D display device. The stereoscopic display device comprises a display panel and a grating, wherein the display panel comprises a plurality of first display units and a plurality of second display units, the plurality of first display units and the plurality of second display units are arranged alternately in a Y direction of the display panel; the grating comprises a plurality of optical structures arranged parallel to each other; a preset angle β is arranged between the optical structure and an X direction of the display panel, thereby reducing Moire fringe phenomenon during displaying.
1. A stereoscopic display device; the stereoscopic display device comprises a display panel and a grating, wherein
the display panel comprises a plurality of first display units and a plurality of second display units, the plurality of first display units and the plurality of second display units are arranged alternately in a Y direction of the display panel; each first display unit and each second display unit respectively comprises m sub pixels arranged in the Y direction forming a square;
wherein m≥1; a size of the sub pixel in the Y direction is smaller than a size of the sub pixel in the X direction, the Y direction being perpendicular to the X direction;
the grating comprises a plurality of optical structures arranged parallel to each other; a preset angle β is arranged between the optical structure and an X direction of the display panel, thereby reducing Moire fringe phenomenon during displaying;
wherein 0.8θ≤β≤1.2θ;
wherein
θ
=
arctan
(
T
2
+
0.25
)
;
T is a sub pixels number of a layout position difference in the Y direction between two first display units respectively positioned in two adjacent columns, or a sub pixels number of a layout position difference in the Y direction between two second display units respectively positioned in two adjacent columns, T being a positive integer of 1˜100.
2. The stereoscopic display device according to claim 1 , wherein θ meets:
|
α
-
θ
|
>
arccos
P
2
[
n
2
(
A
3
×
sin
α
)
2
+
B
2
]
-
(
A
2
×
sin
α
)
2
B
2
2
n
(
A
3
×
sin
α
)
BP
2
wherein α is an angle between a diagonal of the sub pixel and the Y direction;
A is the size of the sub pixel in the Y direction;
P is a width of the smallest Moire fringe which can be identified by human eyes;
n is a sampling number for Moire fringes, being a positive integer;
B is a grating pitch of the grating.
3. The stereoscopic display device according to claim 1 , wherein θ meets:
θ
>
arccos
P
2
(
n
2
A
2
+
B
2
)
-
A
2
B
2
2
nABP
2
.
4. The stereoscopic display device according to claim 1 , wherein θ meets:
θ
<
90
°
-
arccos
P
2
(
n
2
A
2
/
9
+
B
2
)
-
A
2
B
2
/
9
2
nABP
2
/
3
.
5. The stereoscopic display device according to claim 1 , wherein two sub pixels form a square;
θ
=
arctan
(
T
2
+
0.25
)
;
T is 1, 2 or 3.
6. The stereoscopic display device according to claim 1 , wherein one sub pixel forms a square;
θ=arctan( T+ 0.5);
T is 1, 2 or 3.
7. The stereoscopic display device according to claim 1 , wherein the sub pixel is a red sub pixel, a blue sub pixel or a green sub pixel.
8. The stereoscopic display device according to claim 1 , wherein the grating is a slit grating or a lenticular grating.
9. The stereoscopic display device according to claim 1 , wherein the display panel comprises a liquid crystal display panel; the grating is arranged on a light input side or a light output side of the liquid crystal display panel; or
the display panel comprises an organic electroluminescent diode display panel; the grating is arranged on a light output side of the organic electroluminescent diode display panel.
10. A method for manufacturing a stereoscopic display device;
the method comprises providing a display panel and a grating, wherein the display panel comprises a plurality of first display units and a plurality of second display units, the plurality of first display units and the plurality of second display units are arranged alternately in a Y direction of the display panel; each first display unit and each second display unit respectively comprises m sub pixels arranged in the Y direction forming a square;
wherein m≥1; a size of the sub pixel in the Y direction is smaller than a size of the sub pixel in the X direction, the Y direction being perpendicular to the X direction;
the grating comprises a plurality of optical structures arranged parallel to each other; a preset angle β is arranged between the optical structure and an X direction of the display panel, thereby reducing Moire fringe phenomenon during displaying;
wherein 0.8θ≤β≤1.2θ;
wherein
θ
=
arctan
(
T
m
+
1
2
×
m
)
;
T is a sub pixels number of a layout position difference in the Y direction between two first display units respectively positioned in two adjacent columns, or a sub pixels number of a layout position difference in the Y direction between two second display units respectively positioned in two adjacent columns, T being a positive integer of 1˜100.
11. The method according to claim 10 , wherein θ meets:
|
α
-
θ
|
>
arccos
P
2
[
n
2
(
A
3
×
sin
α
)
2
+
B
2
]
-
(
A
2
×
sin
α
)
2
B
2
2
n
(
A
3
×
sin
α
)
BP
2
wherein α is an angle between a diagonal of the sub pixel and the Y direction;
A is the size of the sub pixel in the Y direction;
P is a width of the smallest Moire fringe which can be identified by human eyes;
n is a sampling number for Moire fringes, being a positive integer;
B is a grating pitch of the grating.
12. The method according to claim 10 , wherein θ meets:
θ
>
arccos
P
2
(
n
2
A
2
+
B
2
)
-
A
2
B
2
2
nABP
2
.
13. The method according to claim 10 , wherein θ meets:
θ
<
90
°
-
arccos
P
2
(
n
2
A
2
/
9
+
B
2
)
-
A
2
B
2
/
9
2
nABP
2
/
3
.
14. The method according to claim 10 , wherein two sub pixels form a square;
θ
=
arctan
(
T
2
+
0.25
)
;
T is 1, 2 or 3.
15. The method according to claim 10 , wherein one sub pixel forms a square;
θ=arctan( T +0.5);
T is 1, 2 or 3.
16. The method according to claim 10 , wherein the sub pixel is a red sub pixel, a blue sub pixel or a green sub pixel.
17. The method according to claim 10 , wherein the grating is a slit grating or a lenticular grating.
18. The method according to claim 10 , wherein the display panel comprises a liquid crystal display panel; the grating is arranged on a light input side or a light output side of the liquid crystal display panel; or
the display panel comprises an organic electroluminescent diode display panel;
the grating is arranged on a light output side of the organic electroluminescent diode display panel.