TW201504683A - Stereoscopic display device - Google Patents

Abstract

A stereoscopic display device includes a pixel array and a lens array. The pixel array includes a plurality of sub-pixel units, and the lens array includes a plurality of lenses. Each of lenses includes a central surface, a light incident surface, a first light emitting surface and a second light emitting surface, and the first light emitting surface and the second light emitting surface are symmetry in the central surface and have different centers of curvature. In the same lens, the light incident surface is used for receiving light from N sub-pixel units, the first light emitting surface and the second light emitting surface are used for emitting the light received from the light incident surface, and multiple view points are formed at a view point side, wherein N is greater than four and is an integer. The curvature of lens is bigger than ordinary one and the focal length becomes smaller. Therefore, the stereoscopic display device has thin type design.

Description

Stereoscopic display device

The present invention relates to a display device, and more particularly to a stereoscopic display device.

At present, there are mainly two methods for displaying a stereoscopic image by a stereoscopic display device. One is that the viewer must wear the specially treated glasses to view the display device so that the left eye and the right eye receive different images, or the left eye and the right eye. The images alternate to produce a stereoscopic image. This method can be used to see stereoscopic images by the viewer wearing additional glasses, which is inconvenient to use.

The other is a naked-eye display device, which is a principle in which the display device uses a grating, so that the viewer can make the stereoscopic image different from the image seen by the left eye and the right eye without wearing any additional device. Used in print, baseball cards or partially naked-eye electronic stereo displays. A conventional stereoscopic display device includes a display panel and a columnar lens array. The display panel includes a plurality of pixels, and each pixel includes a plurality of different color light emitting diodes, and the lenticular lens array is disposed opposite to the pixels. The lenticular lens array includes a plurality of lenticular lenses arranged in a first direction, each of the lenticular lenses including a convex cylindrical surface away from the pixels.

Although the above-mentioned conventional stereoscopic display device can enable a viewer to see a stereoscopic image without wearing special glasses, when the size of the display panel of the stereoscopic display device is larger, the distance of the viewer's viewing distance is further, so that each column The larger the radius of curvature of the convex cylindrical surface of the lens, the further the distance between the cylindrical lens array and the display panel, and the thicker the thickness of the stereoscopic display device.

As electronic products have become thinner, conventional stereoscopic display devices have a problem that the thickness of the stereoscopic display device is thicker as the size of the display panel is larger.

The present invention provides a stereoscopic display device to solve the problems of the prior art.

The invention provides a stereoscopic display device comprising a pixel array and a lens array. The pixel array includes a plurality of sub-pixel units, and the lens array includes a plurality of lenses. Each lens includes a center plane, a light incident surface, a first light exit surface and a second light exit surface. Each of the first light-emitting masks has a first center of curvature, and each of the second light-emitting masks has a second center of curvature. In the same lens, the first light-emitting surface and the second light-emitting surface are plane-symmetric with respect to the central surface, and the first center of curvature is different from the center of the second curvature. Wherein, in each lens, the light incident surface is for receiving light emitted by the N sub-pixel units, and the first light emitting surface and the second light emitting surface are used to emit light received by the light surface, and are formed at one viewpoint end. Multiple viewpoints, where N≧4 is an integer.

The present invention provides another stereoscopic display device comprising a pixel array and a lens array. The pixel array includes a plurality of pixel units, and the lens array includes a plurality of lenses. Each lens includes a center plane, a light incident surface, a first light exit surface and a second light exit surface. Each of the first light-emitting masks has a first center of curvature, and each of the second light-emitting masks has a second center of curvature. In the same lens, the first light-emitting surface and the second light-emitting surface are plane-symmetric with respect to the central surface, and the first center of curvature is different from the center of the second curvature. Wherein, in each lens, the light incident surface is for receiving light emitted by the N pixel units, and the first light emitting surface and the second light emitting surface are used to emit light received by the light surface, and are formed at one viewpoint end. Multiple viewpoints, where N≧4 is an integer.

According to the stereoscopic display device disclosed in the present invention, the first illuminating surface can be made by the relative arrangement position design of the pixel array and the lens array and the plane symmetry of the first illuminating surface and the second illuminating surface and having different centers of curvature. The light beams emitted by the second illuminating surface are staggered, and the curvature of the lens array is larger than that of the general non-staggered arrangement, so the focal length is small. Therefore, stand The body display device has a slim design.

10‧‧‧First Curvature Center

11,12,13‧‧‧ rays

20‧‧‧ Second Curvature Center

21, 22, 23‧‧‧ rays

31, 32, 33‧ ‧ sub-pixel elements

41, 42, 43‧‧‧ rays

50‧‧‧ pixels

51, 52, 53‧‧‧ rays

60‧‧‧ lens

61, 62, 63‧‧‧ rays

70a, 75a, 81a, 85a, 95a‧‧‧ right eye

70b, 75b, 81b, 85b, 95b‧‧‧ left eye

71, 72, 73‧‧‧ rays

80‧‧‧ first plane

82‧‧‧ second plane

90‧‧‧First cable

92‧‧‧ center line

100‧‧‧ Stereo display device

102‧‧‧ pixel array

104‧‧‧ lens array

200‧‧‧ center face

210‧‧‧Into the glossy surface

220‧‧‧The first glazing

230‧‧‧Second glazing

D‧‧‧visible distance

F‧‧‧First direction

P ₁ ‧‧‧ first vertex

P ₂ ‧‧‧ second vertex

Radius of curvature of R ₁ , R ₂ ‧‧

S‧‧‧second direction

V‧‧‧ first angle

W‧‧‧second angle

t‧‧‧Distance between the first vertex and the pixel array

E‧‧‧Distance between adjacent two pixels

1 is a perspective view of an embodiment of a stereoscopic display device according to the present invention.

Fig. 2 is a side view of the stereoscopic display device according to Fig. 1.

Fig. 3A is a schematic view showing the imaging of the first lens of the stereoscopic display device according to Fig. 2.

Fig. 3B is a schematic view showing the imaging of the second lens of the stereoscopic display device according to Fig. 2.

Fig. 3C is a schematic view showing the imaging of the third lens of the stereoscopic display device according to Fig. 2.

Figure 4 is a side elevational view of another embodiment of a stereoscopic display device in accordance with the present invention.

Fig. 5A is a schematic view showing the imaging of the first lens of the stereoscopic display device according to Fig. 4.

Fig. 5B is a schematic view showing the imaging of the second lens of the stereoscopic display device according to Fig. 4.

Fig. 5C is a schematic view showing the imaging of the third lens of the stereoscopic display device according to Fig. 4.

Please refer to FIG. 1 and FIG. 2, which are perspective views of an embodiment of a stereoscopic display device according to the present invention and a side view of a stereoscopic display device according to FIG. The stereoscopic display device 100 includes a pixel array 102 and a lens array 104. The pixel array 102 includes a plurality of sub-pixel units 31, a plurality of sub-pixel units 32, and a plurality of sub-pixel units 33, wherein the plurality of sub-pixel units 31, the plurality of sub-pixel units 32, and the plurality of sub-pixel units 33 are The sequences are arranged in a first direction F (as shown in FIG. 1), and a sub-pixel unit 31, a sub-pixel unit 32 and a sub-pixel unit 33 can form a pixel 50. In this embodiment, the pixel array 102 may include thirty-two pixels 50, each column having four pixels 50 (ie, four pixels 50 arranged in the first direction F), and having eight rows (ie, The number of pixels 50 arranged in the second direction S The amount is eight), the first direction F and the second direction S are perpendicular to each other, and the pixel pitch E between the adjacent two pixels 50 may be, but not limited to, 0.4845 mm, but this embodiment is not used. The invention is defined. It should be noted that, for the drawing is too complicated, the number of pixels 50 of each column of the pixel array 102 of the present embodiment is represented by only four, and the pixel array 102 may include thirty-two pixels 50, but the implementation It is not intended to limit the invention.

The lens array 104 includes a plurality of lenses 60 each including a center plane 200, a light incident surface 210, a first light exit surface 220, and a second light exit surface 230. The lens array 104 may be integrally formed, and the material of each lens 60 is polycarbonate, polymethyl methacrylate, silicone, resin or optical glass. In this embodiment, the material of each lens 60 may be polymethyl methacrylate, the refractive index may be 1.57, and the lenses 60 included in the lens array 104 may be aligned along the first direction F. In order to avoid the complexity of the drawings, the number of the lenses 60 of the lens array 104 of the present embodiment is represented by only three, but the present embodiment is not intended to limit the present invention. It should be noted that since "the second drawing" is a side view, the number of the lenses 60 in the drawing is three, the number of the pixels 50 is four, the central surface 200, the light incident surface 210, and the first light output. The face 220 and the second light exit face 230 are respectively a line segment in the drawing. In addition, in this embodiment, the arrangement direction of the lens 60 (the first direction F) may be parallel or perpendicular to the arrangement direction of the pixels 50 (the first direction F and the second direction S are both), but this embodiment is not used. To limit the invention. For example, the direction in which the lenses 60 are arranged may also be at an acute angle to the direction in which the pixels 50 are arranged.

In each lens 60, the first light exit surface 220 has a first center of curvature 10 and the second light exit surface 230 has a second center of curvature 20. The first light-emitting surface 220 and the second light-emitting surface 230 are plane-symmetric with respect to the central surface 200. The first curvature center 10 is different from the second curvature center 20 (ie, the first light-emitting surface 220 and the second light-emitting surface 230 have different centers of curvature). ). In this embodiment, the radius of curvature R _{1 of the} first light-emitting surface 220 may be 2.12 mm, and the radius of curvature R _{2 of the} second light-emitting surface 230 may be 2.12 mm. The value of the radius of curvature R _{1 of the} first light-emitting surface 220 and the radius of curvature R _{2 of the} second light-emitting surface 230 are different from the size of the pixel 50 of the pixel array 102, the distance between the viewpoint ends, the number of viewpoints, and the use of the lens 60. The materials are all related.

In each lens 60, the first light exit surface 220 includes a first vertex P ₁ , and each second light exit surface 230 includes a second vertex P ₂ . Since the first light-emitting surface 220 and the second light-emitting surface 230 are plane-symmetric with respect to the central surface 200, the distance between the first vertex P ₁ and the pixel array 102 is equal to the distance between the second vertex P ₂ and the pixel array 102. (ie, the distance between the first vertex P ₁ and the pixel array 102 and the distance between the second vertex P ₂ and the pixel array 102 are both t ₁ ). In the present embodiment, the distance between the first vertex P ₁ and the pixel array 102 may be 5.8 mm, and the distance between the second vertex P ₂ and the pixel array 102 may be 5.8 mm. The distance between the first vertex P ₁ and the pixel array 102 and the distance between the second vertex P ₂ and the pixel array 102 are the same as the size of the pixel 50 of the pixel array 102, the viewpoint end, and the viewpoint. Both the quantity and the materials used for the lens 60 are related.

Please refer to "Figure 2". The second light emitting surface 230 of the Kth lens 60 has a first connecting line 90 between the first light emitting surface 220 of the K+1th lens 60 adjacent to the first direction F, and the K+1th lens 60 The center plane 200 intersects the light incident surface 210 of the K+1th lens 60 at the center line 92 of the K+1th lens 60, and the first connecting line 90 and the center line 92 of the K+1th lens 60 constitute the first The plane 80 has a first angle V between the first plane 80 and the center plane 200 of the K+1th lens 60, and the first angle V is 31.6 degrees, wherein K≧1, K+1 is less than or equal to the number of the lenses 60. . In the present embodiment, K may be, but not limited to 2. It should be noted that since "Fig. 2" is a side view, the first connecting line 90 and the center line 92 are respectively a point in the drawing, and the first plane 80 is a line segment in the drawing.

In addition, the first connecting line 92 and the center line 92 of the Kth lens 60 constitute a second plane 82, and the second plane 82 has a second angle W between the center plane 200 of the Kth lens 60, and the second angle W is 31.6 degrees. It should be noted that since "Fig. 2" is a side view, the second plane 82 is a line segment in the drawing.

In each lens 60, the light incident surface 210 is configured to receive light emitted by the N sub-pixel units, and the first light exit surface 220 and the second light exit surface 230 are used to emit light received by the light surface 210, and The viewpoint end forms a plurality of viewpoints, where N ≧ 4 and is an integer. In the present embodiment, N=4, which will be described in detail later.

According to the stereoscopic display device disclosed in the embodiment, a plurality of viewing zones may be provided at one viewpoint end, and each of the viewing zones has a corresponding viewpoint. The perspective of each viewpoint is different. The number of viewpoints represents image information of a corresponding number of pictures as a source of stereoscopic image content. In the present embodiment, the viewpoints (viewing regions) are located on a plane parallel to the stereoscopic display device, but the embodiment is not intended to limit the present invention. The form of the viewing zones, such as the width, the position, the arrangement, and the distance from the stereoscopic display device are for illustrative purposes only, and the arrangement may be continuous, and is not limited to a straight line or an arc. This embodiment takes a straight line as an example. The distance D between the viewpoint end and the stereoscopic display device can represent the viewing distance of a viewer and the stereoscopic display device.

Please refer to "Fig. 2" and "3A". Fig. 3A is a schematic view showing the first lens of the stereoscopic display device according to "Fig. 2". The light incident surface 210 of the first lens 60 is for receiving the light ray 41, 42, 43 emitted by the first pixel 50 neutron pixel unit 31, the sub pixel unit 32 and the sub pixel unit 33, and the second The light ray 51 emitted by the neutron pixel unit 31 of the pixel 50, the first light-emitting surface 220 of the first lens 60 is used to emit the utterance of the first pixel 50 and the sub-pixel unit 31 and the sub-pixel unit 32. Light rays 41, 42, the first lens 60 The second illuminating surface 230 is configured to emit the ray 43 emitted by the neutron pixel unit 33 of the first pixel 50 and the ray 51 emitted by the sub-pixel unit 31 of the second pixel 50, so that the second pixel 50 The neutron pixel unit 31 is imaged between the first pixel 50 neutron pixel unit 31 and the sub pixel unit 32, and the first pixel 50 neutron pixel unit 31 is imaged in the first pixel 50. The sub-pixel unit 33 is between the sub-pixel unit 31 and the second pixel 50 neutron pixel unit 31. The light ray 41 emitted by the sub-pixel unit 31 of the first pixel 50 and the light ray 42 emitted by the sub-pixel unit 32 of the first pixel 50 may be light toward the right eye of the viewer, the first The light ray 51 emitted by the sub-pixel unit 33 of the pixel 50 and the light ray 51 emitted by the sub-pixel unit 31 of the second pixel 50 may be light toward the left eye of the viewer, but the embodiment is not limited thereto. The invention can be adjusted according to actual needs.

Since the light 41 emitted by the sub-pixel unit 31 of the first pixel 50 and the light 42 emitted by the sub-pixel unit 32 of the first pixel 50 may be the light toward the right eye of the viewer, the first picture The light ray 51 emitted by the sub-pixel unit 33 of the prime 50 and the light ray 51 emitted by the sub-pixel unit 31 of the second pixel 50 may be light toward the left eye of the viewer, and thus the right eye 70a of the viewer (ie, The view point) can receive the light 41 emitted by the sub-pixel unit 31 of the first pixel 50, and the left eye 70b (ie, the viewpoint) can receive the light 43 emitted by the sub-pixel unit 33 of the first pixel 50. The right eye 81a (ie, the viewpoint) of the other viewer can receive the light 42 emitted by the sub-pixel unit 32 of the first pixel 50, and the left eye 81b (ie, the viewpoint) can receive the second pixel 50. The light 51 emitted by the sub-pixel unit 31 further causes the viewer and another viewer to obtain a stereoscopic image by viewing the stereoscopic display device 100. In this embodiment, D may be 3000 mm, the distance between the right eye 70a of the viewer and the left eye 70b may be 65 mm, and the distance between the right eye 81a and the left eye 81b of the other viewer may be It is 65 mm.

Please refer to "Figure 2" and "Figure 3B". "Figure 3B" is based on "No. 2 is a schematic view showing the imaging of the second lens of the stereoscopic display device. The light incident surface 210 of the second lens 60 is for receiving the light 52, 53 and the third pixel 50 neutron pixel unit in the second pixel 50 neutron pixel unit 32 and the sub pixel unit 33. 31 and the light ray 61, 62 emitted by the sub-pixel unit 32, the first light-emitting surface 220 of the second lens 60 is used to emit the second pixel 50 neutron pixel unit 32 and the sub-pixel unit 33 The light ray 52, 53, the second light exiting surface 230 of the second lens 60 is used to emit the light rays 61, 62 emitted by the sub-pixel element 31 and the sub-pixel unit 32 in the third pixel 50, so that the third picture The prime 50 neutron pixel unit 31 is imaged between the second pixel 50 neutron pixel unit 32 and the sub pixel unit 33, and the second pixel 50 neutron pixel unit 32 is imaged at the third pixel. 50 neutron pixel unit 31 and sub-pixel unit 32. The light ray 52 emitted by the sub-pixel unit 32 of the second pixel 50 and the light ray 53 emitted by the sub-pixel unit 33 may be the light toward the right eye of the viewer, and the sub-pixel of the third pixel 50. The light ray 61 emitted by the unit 31 and the light ray 62 emitted by the sub-pixel unit 32 may be light toward the left eye of the viewer. However, this embodiment is not intended to limit the present invention, and may be adjusted according to actual needs.

Since the light ray 52 emitted by the sub-pixel unit 31 of the second pixel 50 and the light ray 53 emitted by the sub-pixel unit 33 may be light toward the right eye of the viewer, the sub-pixel unit of the third pixel 50 The light ray 61 emitted by 31 and the light ray 62 emitted by the sub-pixel unit 32 may be light toward the left eye of the viewer, so that the viewer's right eye 70a can receive the sub-pixel unit 33 of the second pixel 50. The emitted light 53, the left eye 70b can receive the light 62 emitted by the sub-pixel unit 32 of the third pixel 50, and the right eye 81a of the other viewer can receive the sub-pixel of the second pixel 50. The light 62 emitted by the unit 32, the left eye 81b can receive the light 62 emitted by the sub-pixel unit 32 of the third pixel 50, thereby enabling the viewer and the other viewer to obtain the stereoscopic view by viewing the stereoscopic display device 100. Image.

Please refer to "Fig. 2" and "3C". Fig. 3C is a schematic view showing the third lens of the stereoscopic display device according to "Fig. 2". The light incident surface 210 of the third lens 60 is for receiving the light 63 emitted by the sub-pixel unit 33 in the third pixel 50 and the sub-pixel unit 31 and the sub-pixel unit 32 of the fourth pixel 50. The light rays 71, 72, 73 emitted by the sub-pixel unit 33, the first light-emitting surface 220 of the third lens 60 is used to emit the light 63 and the fourth light emitted by the sub-pixel unit 32 in the third pixel 50. The light ray 71 emitted by the neutron pixel unit 31 of the pixel 50, and the second light-emitting surface 230 of the third lens 60 for emitting the fourth pixel 50 and the sub-pixel unit 32 and the sub-pixel unit 33 The light rays 72, 73 are such that the fourth pixel 50 neutron pixel unit 32 is imaged between the third pixel 50 neutron pixel unit 33 and the fourth pixel 50 neutron pixel unit 31, fourth The single pixel 50 neutron pixel unit 31 is imaged between the fourth pixel unit 50 neutron pixel unit 32 and the sub pixel unit 33. The ray 63 emitted by the sub-pixel unit 33 of the third pixel 50 and the ray 71 emitted by the sub-pixel unit 31 of the fourth pixel 50 may be the light toward the right eye of the viewer, and the fourth The light ray 72 emitted by the sub-pixel unit 32 of the pixel 50 and the light ray 73 emitted by the sub-pixel unit 33 may be light toward the left eye of the viewer, but this embodiment is not intended to limit the present invention, and may be based on actual needs. Make adjustments.

The light ray 63 emitted by the sub-pixel unit 33 of the third pixel 50 and the light ray 71 emitted by the sub-pixel unit 31 of the fourth pixel 50 may be the light toward the right eye of the viewer, and the fourth picture The light 72 emitted by the sub-pixel unit 32 of the prime 50 and the light 73 emitted by the sub-pixel unit 33 may be light toward the left eye of the viewer, so that the viewer's right eye 70a can receive the fourth pixel 50. The light ray 71 emitted by the sub-pixel unit 31, the left eye 70b can receive the light ray 73 emitted by the sub-pixel unit 33 of the fourth pixel 50, and the other viewer's right eye 81a can receive the third light. The light 63 emitted by the sub-pixel unit 33 of the pixel 50 can be received by the left eye 81b. The light 62 emitted by the sub-pixel unit 32 of the fourth pixel 50 causes the viewer and another viewer to obtain a stereoscopic image by viewing the stereoscopic display device 100.

Each of the lenses 60 of the above embodiment corresponds to four sub-pixel units, but the above embodiments are not intended to limit the present invention. For example, each lens 60 can also correspond to six sub-pixel units, as described in detail below.

Please refer to FIG. 4, which is a side view of another embodiment of a stereoscopic display device according to the present invention. The difference between the embodiment and the above embodiment is that the light incident surface 210 of each lens 60 of the embodiment is configured to receive light emitted by six sub-pixel units, and the first light-emitting surface 220 and the second light-emitting surface 230 are used for The light received by the light surface 210 is emitted, and a plurality of viewpoints are formed at one viewpoint end.

Please refer to "Fig. 4" and "5A". Fig. 5A is a schematic view showing the first lens of the stereoscopic display device according to "Fig. 4". The light incident surface 210 of the first lens 60 is for receiving the light ray 41, 42, 43 emitted by the first pixel 50 neutron pixel unit 31, the sub pixel unit 32 and the sub pixel unit 33, and the second The illuminant 51, the sub-pixel unit 32 and the sub-pixel unit 33 emit light rays 51, 52, 53. The first light-emitting surface 220 of the first lens 60 is used to emit the first pixel. The neutron pixel unit 31, the sub-pixel unit 32 and the sub-pixel unit 33 emit light rays 41, 42, 43, and the second light-emitting surface 230 of the first lens 60 is used to emit the second pixel 50. The sub-pixel unit 31, the sub-pixel unit 32 and the sub-pixel unit 33 emit light rays 51, 52, 53 such that the second pixel 50 neutron pixel unit 33 is imaged in the first pixel 50 neutron Between the pixel unit 33 and the sub-pixel unit 32, the first pixel 50 neutron pixel unit 32 is imaged between the sub-pixel unit 33 and the sub-pixel unit 32 in the second pixel 50, and second The pixel 50 neutron pixel unit 32 is imaged in the first pixel 50 neutron pixel unit 31 and sub Between the pixel units 32, the first pixel 50 neutron pixel unit 31 is imaged between the sub-pixel unit 31 and the sub-pixel unit 32 in the second pixel 50. The light rays 41, 42, 43 emitted by the sub-pixel unit 31, the sub-pixel unit 32, and the sub-pixel unit 33 of the first pixel 50 may be light toward the right eye of the viewer, and the second pixel The light rays 51, 52, and 53 emitted by the 50 neutron pixel unit 31, the sub-pixel unit 32, and the sub-pixel unit 33 may be light rays toward the left eye of the viewer, but the embodiment is not intended to limit the present invention. Adjust according to actual needs.

Since the light rays 41, 42, 43 emitted by the sub-pixel unit 31, the sub-pixel unit 32, and the sub-pixel unit 33 of the first pixel 50 may be light rays toward the right eye of the viewer, the second pixel 50 The light rays 51, 52, 53 emitted by the neutron pixel unit 31, the sub-pixel unit 32, and the sub-pixel unit 33 may be light rays toward the left eye of the viewer, so that the right eye 75a (ie, the viewpoint) of the viewer can be received. To the light ray 43 emitted by the sub-pixel unit 33 of the first pixel 50, the left eye 75b (ie, the viewpoint) can receive the light 53 emitted by the sub-pixel unit 33 of the second pixel 50, and the other view The right eye 85a (ie, the viewpoint) can receive the light ray 42 emitted by the sub-pixel unit 32 of the first pixel 50, and the left eye 85b (ie, the viewpoint) can receive the sub-pixel of the second pixel 50. The light 52 emitted by the unit 32, and the right eye 95a (ie, the viewpoint) of the other viewer, can receive the light 41 emitted by the sub-pixel unit 31 of the first pixel 50, and the left eye 95b (ie, the viewpoint) can receive The light ray 51 emitted by the sub-pixel unit 31 of the second pixel 50 further enables the viewer, the other viewer and the other viewer to obtain the stereoscopic display device 100. The image of the body. In this embodiment, the distance between the right eye 75a of the viewer and the left eye 75b may be 65 mm, and the distance between the right eye 85a of the other viewer and the left eye 85b may be 65 mm, and the other The distance between the right eye 95a of the viewer and the left eye 95b may be 65 mm.

Please refer to "Fig. 4" and "5B". "5B" is based on "No. 4 is a schematic view showing the imaging of the second lens of the stereoscopic display device. The light incident surface 210 of the second lens 60 is for receiving the light ray 61, 62, 63 and the fourth light emitted by the sub-pixel unit 31, the sub-pixel unit 32 and the sub-pixel unit 33 in the third pixel 50. The pixels neutron pixel unit 31, the sub-pixel unit 32 and the sub-pixel unit 33 emit light rays 71, 72, 73, and the first light-emitting surface 220 of the second lens 60 is used to emit a third pixel. The neutron pixel unit 31, the sub-pixel unit 32 and the sub-pixel unit 33 emit light rays 61, 62, 63, and the second light-emitting surface 230 of the second lens 60 is used to emit the fourth pixel 50. The sub-pixel unit 31, the sub-pixel unit 32 and the sub-pixel unit 33 emit light rays 71, 72, 73 such that the fourth pixel 50 neutron pixel unit 33 is imaged in the third pixel 50 neutron Between the pixel unit 33 and the sub-pixel unit 32, the third pixel 50 neutron pixel unit 32 is imaged between the sub-pixel unit 33 and the sub-pixel unit 32 in the fourth pixel 50, fourth. The pixel 50 neutron pixel unit 32 is imaged between the third pixel 50 neutron pixel unit 31 and the sub pixel unit 32, and the third pixel 50 neutron pixel unit 31 is imaged at the fourth pixel. Picture 50 neutron Pixel unit 31 and the sub-pixel 32 between the unit. The light ray 61, 62, 63 emitted by the third pixel 50 neutron pixel unit 31, the sub-pixel unit 32 and the sub-pixel unit 33 may be light toward the right eye of the viewer, and the fourth pixel The light rays 71, 72, 73 emitted by the 50 neutron pixel unit 31, the sub-pixel unit 32 and the sub-pixel unit 33 may be light rays toward the left eye of the viewer, but the embodiment is not intended to limit the present invention. Adjust according to actual needs.

Since the light ray 61, 62, 63 emitted by the third pixel 50 neutron pixel unit 31, the sub-pixel unit 32 and the sub-pixel unit 33 may be light toward the right eye of the viewer, the fourth pixel 50 The light rays 71, 72, 73 emitted by the neutron pixel unit 31, the sub-pixel unit 32, and the sub-pixel unit 33 may be light rays toward the left eye of the viewer, so that the right eye 75a (ie, the viewpoint) of the viewer can be received. The light 63 emitted by the sub-pixel unit 33 of the third pixel 50, the left eye 75b (ie, the viewpoint) The light ray 73 emitted by the sub-pixel unit 33 of the fourth pixel 50 can be received, and the right eye 85a (ie, the viewpoint) of the other viewer can receive the sub-pixel unit 32 of the third pixel 50. The light ray 62, the left eye 85b (ie, the viewpoint) can receive the light 72 emitted by the sub-pixel unit 32 of the fourth pixel 50, and the other viewer's right eye 95a (ie, the viewpoint) can receive the third light. The light 61 emitted by the sub-pixel unit 31 of the pixel 50, the left eye 95b (ie, the viewpoint) can receive the light 71 emitted by the sub-pixel unit 31 of the fourth pixel 50, thereby making the viewer and the other The viewer and the other viewer obtain a stereoscopic image by viewing the stereoscopic display device 100.

Please refer to "Fig. 4" and "5C". Fig. 5C is a schematic view showing the third lens of the stereoscopic display device according to "Fig. 4". The light incident surface 210 of the third lens 60 is configured to receive the light rays 11, 12, 13 and the sixth light emitted by the sub-pixel unit 31, the sub-pixel unit 32 and the sub-pixel unit 33 in the fifth pixel 50. The illuminating elements 50, 22, 23 of the neutron pixel unit 31, the sub-pixel unit 32 and the sub-pixel unit 33, and the first light-emitting surface 220 of the third lens 60 are used to emit the fifth pixel. The neutron pixel unit 31, the sub-pixel unit 32 and the sub-pixel unit 33 emit light rays 11, 12, 13, and the second light-emitting surface 230 of the third lens 60 is used to emit the sixth pixel 50. The sub-pixel unit 31, the sub-pixel unit 32 and the sub-pixel unit 33 emit light rays 21, 22, 23 such that the sixth pixel 50 neutron pixel unit 33 is imaged in the fifth pixel 50 neutron Between the pixel unit 33 and the sub-pixel unit 32, the fifth pixel 50 neutron pixel unit 32 is imaged between the sub-pixel unit 33 and the sub-pixel unit 32 in the sixth pixel 50, sixth. The pixel 50 neutron pixel unit 32 is imaged between the fifth pixel 50 neutron pixel unit 31 and the sub pixel unit 32, and the fifth pixel 50 neutron pixel unit 31 is imaged in the sixth pixel. Picture 50 neutron Pixel unit 31 and the sub-pixel 32 between the unit. The light, 11, 12, 13 emitted by the fifth pixel 50 neutron pixel unit 31, the sub-pixel unit 32, and the sub-pixel unit 33 may be oriented. The light of the right eye of the viewer, the light rays 21, 22, 23 emitted by the sixth pixel 50 neutron pixel unit 31, the sub-pixel unit 32 and the sub-pixel unit 33 may be light toward the left eye of the viewer. However, this embodiment is not intended to limit the present invention, and may be adjusted according to actual needs.

Since the fifth pixel 50 neutron pixel unit 31, the sub-pixel unit 32 and the sub-pixel unit 33 emit light rays 11, 12, 13 may be light toward the viewer's right eye, the sixth pixel 50 The light rays 21, 22, 23 emitted by the neutron pixel unit 31, the sub-pixel unit 32, and the sub-pixel unit 33 may be light rays toward the left eye of the viewer, so that the right eye 75a (ie, the viewpoint) of the viewer can be received. To the light ray 13 emitted by the sub-pixel unit 33 of the fifth pixel 50, the left eye 75b (ie, the viewpoint) can receive the light 23 emitted by the sub-pixel unit 33 of the sixth pixel 50, and the other view The right eye 85a (ie, the viewpoint) can receive the light 12 emitted by the sub-pixel unit 32 of the fifth pixel 50, and the left eye 85b (ie, the viewpoint) can receive the sub-pixel of the sixth pixel 50. The light 22 emitted by the unit 32, the right eye 95a of the other viewer (ie, the viewpoint) can receive the light 11 emitted by the sub-pixel unit 31 of the fifth pixel 50, and the left eye 95b (ie, the viewpoint) can receive The light 21 emitted by the sub-pixel unit 31 of the sixth pixel 50 further enables the viewer, the other viewer, and the other viewer to obtain the stereoscopic display device 100. The image of the body.

The light emitted by the sub-pixel unit described in the above embodiment may be red, yellow or green. In the above embodiment, one lens corresponding to N sub-pixel units may be replaced by one lens corresponding to N pixel units, and the stereo imaging principle of one lens corresponding to N pixel units is the same as that of the above embodiment, so no longer Narration. Where N≧4 is an integer.

According to the stereoscopic display device of the present invention, the relative arrangement position of the pixel array and the lens array can be designed (one lens corresponds to a plurality of sub-pixel units or one lens corresponds to a plurality of pixel units), and the first light-emitting surface and the first light-emitting surface The plane of the two illuminating planes is symmetrical and has different curvatures The design of the heart causes the light beams emitted by the pixel array to be staggered, and the curvature of the lens array is larger than that of the general non-staggered arrangement, so the focal length is small. Therefore, the stereoscopic display device has a slim design.

While the present invention has been described above in terms of the preferred embodiments thereof, it is not intended to limit the invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The patent protection scope of the invention is subject to the definition of the scope of the patent application attached to the specification.

10‧‧‧First Curvature Center

20‧‧‧ Second Curvature Center

31, 32, 33‧ ‧ sub-pixel elements

50‧‧‧ pixels

60‧‧‧ lens

80‧‧‧ first plane

82‧‧‧ second plane

90‧‧‧First cable

92‧‧‧ center line

102‧‧‧ pixel array

104‧‧‧ lens array

200‧‧‧ center face

210‧‧‧Into the glossy surface

220‧‧‧The first glazing

230‧‧‧Second glazing

F‧‧‧First direction

P ₁ ‧‧‧ first vertex

P ₂ ‧‧‧ second vertex

Radius of curvature of R ₁ , R ₂ ‧‧

V‧‧‧ first angle

W‧‧‧second angle

t‧‧‧Distance between the first vertex and the pixel array

E‧‧‧Distance between adjacent two pixels

Claims (10)

A stereoscopic display device comprising: a pixel array comprising a plurality of sub-pixel units; and a lens array comprising a plurality of lenses, each of the lenses comprising a center plane, a light incident surface, a first light exit surface and a a second light-emitting surface, each of the first light-emitting masks has a first center of curvature, and each of the second light-emitting masks has a second center of curvature. In the same lens, the first light-emitting surface and the second light-emitting surface The surface is symmetrical with the central surface, the first center of curvature is different from the second center of curvature; wherein, in each of the lenses, the light incident surface is for receiving light emitted by the N sub-pixel units The first light emitting surface and the second light emitting surface are used to emit the light received by the light incident surface, and a plurality of viewpoints are formed at one viewpoint end, wherein N≧4 is an integer. The stereoscopic display device of claim 1, wherein each of the first light-emitting surfaces has a radius of curvature of 0.5 to 5 mm, and each of the second light-emitting surfaces has a radius of curvature of 0.5 to 5 mm. The stereoscopic display device of claim 1, wherein the materials of the lenses are polycarbonate, polymethyl methacrylate, silicone, resin or optical glass. The stereoscopic display device of claim 1, wherein the lens array is integrally formed. The stereoscopic display device of claim 1, wherein each of the first light-emitting surfaces comprises a first vertex, and each of the second light-emitting surfaces comprises a second vertex, each of the first vertex and the pixel array The distance between them is 0.5 to 10 mm, and the distance between each of the second vertices and the pixel array is 0.5 to 10 mm. A stereoscopic display device comprising: a pixel array comprising a plurality of pixel units; a lens array comprising a plurality of lenses, each of the lenses comprising a central surface, a light incident surface, a first light exit surface and a second light exit surface, each of the first light exit masks having a first center of curvature, each The second light-emitting mask has a second center of curvature. In the same lens, the first light-emitting surface and the second light-emitting surface are plane-symmetric with the central surface. The first center of curvature and the second center of curvature In each of the lenses, the light incident surface is configured to receive light emitted by the N pixels, and the first light emitting surface and the second light emitting surface are configured to receive the light incident surface. The light rays form a plurality of viewpoints at one viewpoint end, wherein N ≧ 4 is an integer. The stereoscopic display device of claim 6, wherein each of the first light-emitting surfaces has a radius of curvature of 0.5 to 5 mm, and each of the second light-emitting surfaces has a radius of curvature of 0.5 to 5 mm. The stereoscopic display device of claim 6, wherein the materials of the lenses are polycarbonate, polymethyl methacrylate, silicone, resin or optical glass. The stereoscopic display device of claim 6, wherein the lens array is integrally formed. The stereoscopic display device of claim 6, wherein each of the first light-emitting surfaces comprises a first vertex, and each of the second light-emitting surfaces comprises a second vertex, each of the first vertex and the pixel array The distance between them is 0.5 to 10 mm, and the distance between each of the second vertices and the pixel array is 0.5 to 10 mm.