CN117950205A - Naked-eye three-dimensional display - Google Patents

Abstract

A naked-eye stereoscopic display comprises a first display unit, a second display unit, a first optical element, a second optical element and a backlight module. The first display unit is provided with a first light-emitting surface. The second display unit is provided with a second light-emitting surface, the second light-emitting surface and the first light-emitting surface are arranged at a specific included angle, the specific included angle is 60-120 degrees, and a connecting seam is arranged between the first display unit and the second display unit. The first optical element is adjacent to the first display unit and is close to the connecting seam to guide light rays to the connecting seam. The second optical element is adjacent to the second display unit and is close to the connecting seam to guide the light to the connecting seam. The light emitting direction of the backlight module faces the first display unit and the second display unit.

Description

Auto-stereoscopic display

Technical Field

The invention relates to the field of display, in particular to a naked-eye stereoscopic display.

Background technique

In many common places, it is now the norm to display dynamic images on monitors to replace the single image of traditional light boxes. However, since the dynamic images are short-lived, how to catch the audience's attention is an urgent matter to consider.

When two display screens are arranged at a specific angle, and through image processing, the naked eye can produce a visual effect of a naked stereoscopic image due to the visual illusion. The three-dimensional 3D animation is more vivid and can catch the audience's attention.

In the existing technology, in addition to the control of the picture, the biggest problem of the two display screens is the turning seam, which is easy to produce black shadows or bright lines and the brightness of the display screen is inconsistent. Because the visual effect of the border is not continuous, the 3D animation will have the problem of picture cutting.

Summary of the invention

In order to solve the problems faced by the prior art, a naked-eye stereoscopic display is provided herein. The naked-eye stereoscopic display comprises a first display unit, a second display unit, a first optical element, a second optical element, and a backlight module.

The first display unit has a first light emitting surface. The second display unit has a second light emitting surface, the second light emitting surface is arranged at a specific angle with the first light emitting surface, the specific angle is 60 to 120 degrees, and there is a connection seam between the first display unit and the second display unit. The first optical element is adjacent to the position of the first display unit close to the connection seam, and guides the light to the connection seam. The second optical element is adjacent to the position of the second display unit close to the connection seam, and guides the light to the connection seam. The light emitting direction of the backlight module is toward the first display unit and the second display unit.

In some embodiments, the auto-stereoscopic display further includes a transparent cover plate, the transparent cover plate includes a first covering portion, a second covering portion, and a connecting portion. The first covering portion and the second covering portion are respectively disposed on the first light emitting surface and the second light emitting surface, and the first optical element and the second optical element are respectively formed on the first covering portion and the second covering portion. The connecting portion connects the first covering portion and the second covering portion and has a turning chamfer, the turning chamfer corresponds to the connecting seam, and the first optical element and the second optical element respectively guide the light emitted from the first light emitting surface and the second light emitting surface toward the connecting seam.

In more detail, in some embodiments, the turning chamfer angle is a circular arc chamfer angle.

In more detail, in some embodiments, the inner surface of the turning chamfer is a roughened surface.

In more detail, in some embodiments, the first display unit has a first side surface, the second display unit has a second side surface, a specific angle is set between the first side surface and the second side surface, and is adjacent to the turning angle, the first display unit and the second display unit are the same panel, and a reflective layer is set on the first side surface and the second side surface.

In more detail, in some embodiments, the auto-stereoscopic display further comprises a back plate and a base. The backlight module is disposed on the back plate. The base fixes the first display unit, the second display unit, the transparent cover plate and the back plate. Further, in some embodiments, the auto-stereoscopic display further comprises a cover plate, which contacts the upper surface of the base, the first display unit, the second display unit, the transparent cover plate, and the back plate.

In more detail, in some embodiments, the backlight module includes a light guide plate, a first light source and a second light source. The light guide plate includes a first light guide portion, a second light guide portion and a light guide connecting portion. The first light guide portion and the second light guide portion are respectively adjacent to the first display unit and the second display unit, and are arranged at a specific angle. The light guide connecting portion connects the first light guide portion and the second light guide portion, and a third optical element and a fourth optical element are formed on the first light guide portion and the second light guide portion, respectively. The third optical element and the fourth optical element are adjacent to the light guide connecting portion, and are used to guide the light of the backlight module to the connecting seam, and the first light source and the second light source are respectively adjacent to the first light guide portion and the second light guide portion.

In some embodiments, the backlight module includes a light guide plate, a first light source, and a second light source. The light guide plate includes a first light guide portion, a second light guide portion, and a light guide connecting portion. The first light guide portion and the second light guide portion are respectively adjacent to the first display unit and the second display unit, and are arranged at a specific angle. The light guide connecting portion connects the first light guide portion and the second light guide portion, the first optical element and the second optical element are respectively formed on the first light guide portion and the second light guide portion, and are adjacent to the light guide connecting portion, for guiding the light of the backlight module to the connecting seam, and the first light source and the second light source are respectively adjacent to the first light guide portion and the second light guide portion.

In more detail, in some embodiments, the first display unit and the second display unit are abutted to form a connection seam at the abutment. The first display unit has a first side surface, the first display unit has a second side surface, a specific angle is set between the first side surface and the second side surface, a transparent sealing layer is attached to the first side surface, and a light shielding layer is attached to the second side surface.

In more detail, in some embodiments, the autostereoscopic display further includes a base. The base has a first fixing portion and a second fixing portion, the first fixing portion fixing the first light source, the first light guide portion and one side of the first display unit. The second fixing portion fixing the second light source, the second light guide portion and one side of the second display unit, the first fixing portion including a first wall, the second fixing portion including a second wall, and the first wall and the second wall are arranged at a specific angle.

Furthermore, in some embodiments, the auto-stereoscopic display further comprises a cover plate, which contacts the upper surfaces of the base, the first display unit, and the second display unit to shield the backlight module.

In more detail, in some embodiments, the autostereoscopic display further includes a transparent cover. The transparent cover includes a first covering portion, a second covering portion, and a connecting portion. The first covering portion and the second covering portion are respectively disposed on the first light emitting surface and the second light emitting surface, and the connecting portion connects the first covering portion and the second covering portion and has a turning chamfer. The turning chamfer corresponds to the connecting seam, and the first covering portion and the second covering portion are respectively formed with a third optical element and a fourth optical element, and the third optical element and the fourth optical element are adjacent to the connecting seam, and guide the light emitted from the first light emitting surface and the second light emitting surface toward the turning chamfer.

In some embodiments, the specific angle is 75 degrees to 105 degrees.

As described in the above embodiment, the light is guided toward the connection seam through the first optical element and the second optical element, so that the brightness at the connection seam is substantially the same as that of the light emitting surface, thereby making the image continuous and enhancing the visual effect of the three-dimensional image.

The present invention is described in detail below with reference to the accompanying drawings and specific embodiments, but is not intended to limit the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a first embodiment of a auto-stereoscopic display.

FIG. 2 is a partial exploded view of a first embodiment of a auto-stereoscopic display.

FIG. 3 is a partial top view of the first embodiment of the auto-stereoscopic display.

FIG. 4 is a partial top view of a second embodiment of a auto-stereoscopic display.

FIG. 5 is a partial top view of a third embodiment of a auto-stereoscopic display.

FIG. 6 is a partial top view of a fourth embodiment of a auto-stereoscopic display.

Wherein, the reference numerals are:

1: Naked stereo display

11: First display unit

111: First light emitting surface

113: first side surface

13: Second display unit

131: Second light emitting surface

133: Second side surface

15: Reflection layer

17: Light-shielding layer

19: Transparent sealing layer

21: First optical element

23: Second optical element

30: Transparent cover

31: First covering part

33: Second covering part

35: Connection

351: Inner surface

40: Backlight module

41: Light guide plate

411: first light guide

413: Second light guide

415: Light guide connection part

43:First Light Source

45: Second light source

51: The third optical element

53: Fourth optical element

55: Fifth optical element

57: Sixth optical element

60: Seat

61: First fixing part

611: First Wall

63: Second fixing part

631: Second Wall

65: Back panel

70: Cover

R: Turning Angle

S: Connection seam

Detailed ways

The structural principle and working principle of the present invention are described in detail below in conjunction with the accompanying drawings:

In the accompanying drawings, the width of some elements, regions, etc. is magnified for clarity. Throughout the specification, the same reference numerals represent the same elements. It should be understood that when, for example, an element is referred to as being "on" or "connected to" another element, it may be directly on or connected to another element, or an intermediate element may also exist. Conversely, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intermediate elements.

It should be understood that although the terms "first", "second", "third", etc. may be used herein to describe various elements, components, regions, or portions, these elements, components, regions, and/or portions should not be limited by these terms. These terms are only used to distinguish one element, component, region, or portion from another element, component, region, layer, or portion. Therefore, the "first element", "component", "region", or "portion" discussed below may be referred to as a second element, component, region, or portion without departing from the teachings of this article.

FIG. 1 is a stereoscopic view of a first embodiment of a naked-eye stereoscopic display. FIG. 2 is a partial exploded view of the first embodiment of a naked-eye stereoscopic display. FIG. 3 is a partial top view of the first embodiment of a naked-eye stereoscopic display. As shown in FIGS. 1 to 3, the naked-eye stereoscopic display 1 includes a first display unit 11, a second display unit 13, a first optical element 21, a second optical element 23, a backlight module 40, a base 60, and a cover plate 70. For a clear presentation, the top view of FIG. 3 omits the cover plate 70 and part of the base 60 structure.

As shown in FIGS. 1 to 3 , the first display unit 11 has a first light emitting surface 111. The second display unit 13 has a second light emitting surface 131, and the second light emitting surface 131 is arranged at a specific angle with the first light emitting surface 111, and the specific angle is 60 to 120 degrees, preferably 75 to 105 degrees. More preferably, the second light emitting surface 131 is substantially perpendicular to the first light emitting surface 111. Here, substantially means perpendicular when viewed by the naked eye, but a slight angle deviation is allowed. There is a connecting seam S between the first display unit 11 and the second display unit 13. The first optical element 21 is adjacent to the position of the first display unit 11 close to the connecting seam S, and guides the light to the connecting seam S. The second optical element 23 is adjacent to the position of the second display unit 13 close to the connecting seam S, and guides the light to the connecting seam S. The light emitting direction of the backlight module 40 is toward the first display unit 11 and the second display unit 13.

In the first embodiment, the auto-stereoscopic display 1 further includes a transparent cover plate 30, and the transparent cover plate 30 includes a first covering portion 31, a second covering portion 33, and a connecting portion 35. The first covering portion 31 and the second covering portion 33 are respectively disposed on the first light emitting surface 111 and the second light emitting surface 131, and the first optical element 21 and the second optical element 23 are respectively formed on the first covering portion 31 and the second light emitting surface 33. More specifically, the first optical element 21 and the second optical element 23 may be prism patterns imprinted on the first covering portion 31 and the second covering portion 33, and guide the light emitted from the first light emitting surface 111 and the second light emitting surface 131 toward the connecting seam S by total reflection. The first covering portion 31 and the second covering portion 33 may be adhered to the first light emitting surface 111 and the second light emitting surface 131 by transparent optical adhesive. The connecting portion 35 connects the first covering portion 31 and the second covering portion 33, and has a turning chamfer R, and the turning chamfer R corresponds to the connecting seam S.

In some embodiments, the turning chamfer R is a circular chamfer, and the direction of light divergence can be made more uniform through the circular arc, thereby further reducing the visual impact of the connection seam S. In addition, in some embodiments, the inner surface 351 of the turning chamfer R is a roughened surface. In this way, the light scattering can be made more uniform through the surface roughening.

In addition, referring to FIG. 3 again, in some embodiments, the first display unit 11 has a first side surface 113, the second display unit 13 has a second side surface 133, a specific angle is set between the first side surface 113 and the second side surface 133, and the angle is close to the turning chamfer R. The first display unit 11 and the second display unit 13 are cut from the same panel, and a reflective layer 15 is disposed on the first side surface 113 and the second side surface 133. In this way, the light leakage from the side surface is reflected and then concentrated on the connection seam S through the first optical element 21 and the second optical element 23, so that the light of the connection seam S can be similar to the first display unit 11 and the second display unit 13, thereby reducing the shadow of the connection seam S and achieving a visual effect of continuous images.

Referring again to FIGS. 1 to 3 , in the first embodiment, the autostereoscopic display 1 further includes a back plate 65, the backlight module 40 is disposed on the back plate 65, and the base 60 fixes the first display unit 11, the second display unit 13, the transparent cover plate 30, and the back plate 65. Furthermore, the cover plate 70 contacts the upper surfaces of the base 60, the first display unit 11, the second display unit 13, the transparent cover plate 30, and the back plate 65.

Specifically, from a top view, the first display unit 11, the second display unit 13, and the back panel 65 of the first embodiment form a triangle, and a visual illusion is achieved through the space enclosed by the triangle, thereby achieving a three-dimensional image effect.

FIG4 is a partial top view of the second embodiment of the autostereoscopic display. For the convenience of display, the cover plate 70 and part of the base 60 are omitted. Although the cover plate 70 of the second embodiment is not shown in the figure, it can be understood from FIG1 and FIG2 that the cover plate 70 corresponds to the shape of the base 60 when viewed from above, contacts with the upper surfaces of the base 60, the first display unit 11, and the second display unit 13, and shields the backlight module 40.

As shown in FIG4 , the backlight module 40 of the second embodiment includes a light guide plate 41, a first light source 43 and a second light source 45. The light guide plate 41 includes a first light guide portion 411, a second light guide portion 413 and a light guide connecting portion 415. The first light guide portion 411 and the second light guide portion 413 are respectively adjacent to the first display unit 11 and the second display unit 13, and are arranged at a specific angle. The light guide connecting portion 415 connects the first light guide portion 411 and the second light guide portion 413. The first optical element 21 and the second optical element 23 are respectively formed on the first light guide portion 411 and the second light guide portion 413, and are adjacent to the light guide connecting portion 415, so as to guide the light of the backlight module 40 to the connecting seam S. The first light source 43 and the second light source 45 are respectively adjacent to the first light guide portion 411 and the second light guide portion 413.

More specifically, the light guide plate 41 may be a light guide plate arranged at a specific angle, such as an L-shaped light guide plate, and its shape corresponds to the first display unit 11 and the second display unit 13. In addition, the first optical element 21 and the second optical element 23 are prism patterns printed on the first light guide portion 411 and the second light guide portion 413, and guide the light emitted by the first light source 43 and the second light source 45 toward the connection seam S through total reflection. If the first light emitting surface 111 and the second light emitting surface 131 are the front, the first embodiment arranges the first optical element 21 and the second optical element 23 at the front, while the second embodiment arranges them at the rear.

The second embodiment is different from the first embodiment in the structure of the base 60 and the cover plate 70. The base 60 of the second embodiment has a first fixing portion 61 and a second fixing portion 63. The first fixing portion 61 fixes the first light source 43, the first light guide portion 411 and one side of the first display unit 11. The second fixing portion 63 fixes the second light source 45, the second light guide portion 413 and one side of the second display unit 13. The first fixing portion 61 includes a first wall 611, and the second fixing portion 63 includes a second wall 631. The first wall 611 and the second wall 631 are sandwiched at a specific angle. In other words, the base 60 of the second embodiment can correspond to the sandwiching angle of the light guide plate 41, the first display unit 11 and the second display unit 13, such as an L-shape. In this way, it can be more compatible with various installation positions and further reduce the volume of the autostereoscopic display 1.

In addition, in some embodiments, the first display unit 11 and the second display unit 13 are abutted to form a connection seam S at the abutment, the first display unit 11 has a first side surface 113, the second display unit 13 has a second side surface 133, a specific angle is set between the first side surface 113 and the second side surface 133, a transparent sealing layer 19 is attached to the first side surface 113, and a light shielding layer 17 is attached to the second side surface 133 to prevent light from leaking from the side. In other words, the first display unit 11 and the second display unit 13 can be the same panel or two panels. The overlap of the two display units 11 and 13 is reduced, and the side light leakage of the second display unit 13 is applied through the first optical element 21 and the second optical element 23, so that the first display unit 11 and the second display unit 13 at the connection seam S can achieve the effect of consistent brightness and continuous picture.

FIG. 5 is a partial top view of the third embodiment of the auto-stereoscopic display. FIG. 6 is a partial top view of the fourth embodiment of the auto-stereoscopic display. In FIG. 5 and FIG. 6, for the convenience of display, the cover plate 70 and part of the base 60 are omitted. FIG. 5 is a first embodiment, and is combined with the backlight module 40 of the second embodiment. In this way, a third optical element 51 and a fourth optical element 53 are formed on the first light guide portion 411 and the second light guide portion 413, respectively. The third optical element 51 and the fourth optical element 54 are adjacent to the light guide connecting portion 415, and are used to guide the light of the backlight module 40, that is, the first light source 43 and the second light source 45, to the connecting seam S. The first light source 43 and the second light source 45 are adjacent to the first light guide portion 411 and the second light guide portion 413, respectively.

FIG6 is a second embodiment, and is a combination of the transparent cover plate 30 of the first embodiment. Thus, a fifth optical element 55 and a sixth optical element 57 are formed on the first covering portion 31 and the second covering portion 33, respectively. Here, "fifth" and "sixth" are only used as a sequence of distinctions. The fifth optical element 55 and the sixth optical element 57 are adjacent to the connection seam S, and guide the light emitted from the first light emitting surface 111 and the second light emitting surface 131 toward the turning chamfer R, respectively.

In summary, the light is guided toward the connection seam S through the first optical element 21 and the second optical element 23, so that the brightness at the connection seam S is substantially the same as the first light emitting surface 111 and the second light emitting surface 131, making the image continuous and enhancing the visual effect of the three-dimensional image.

Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims (14)

1. A naked-eye stereoscopic display, comprising: A first display unit having a first light emitting surface; A second display unit having a second light emitting surface, the second light emitting surface and the first light emitting surface are arranged at a specific angle, the specific angle is 60 to 120 degrees, and a connecting seam is provided between the first display unit and the second display unit; A first optical element, adjacent to the first display unit and close to the connection seam, directing light to the connection seam; a second optical element, adjacent to the second display unit and close to the connection seam, to guide light to the connection seam; and A backlight module, the light emitting direction of the backlight module is toward the first display unit and the second display unit. 2. The auto-stereoscopic display as described in claim 1 is characterized in that it further includes a transparent cover plate, the transparent cover plate includes a first covering portion, a second covering portion and a connecting portion, the first covering portion and the second covering portion are respectively arranged on the first light emitting surface and the second light emitting surface, the first optical element and the second optical element are respectively formed on the first covering portion and the second covering portion, the connecting portion connects the first covering portion and the second covering portion and has a turning chamfer, the turning chamfer corresponds to the connecting seam, and the first optical element and the second optical element respectively guide the light emitted from the first light emitting surface and the second light emitting surface toward the connecting seam. 3 . The auto-stereoscopic display as claimed in claim 2 , wherein the turning angle is a circular arc angle. 4 . The auto-stereoscopic display as claimed in claim 2 , wherein an inner surface of the turning chamfer is a roughened surface. 5. The auto-stereoscopic display as described in claim 2 is characterized in that the first display unit has a first side surface, the second display unit has a second side surface, the specific angle is sandwiched between the first side surface and the second side surface, and is adjacent to the turning angle, the first display unit and the second display unit are a same panel, and a reflective layer is arranged on the first side surface and the second side surface. 6. The auto-stereoscopic display as described in claim 2 is characterized by further comprising a back plate and a base, the backlight module is disposed on the back plate, and the base fixes the first display unit, the second display unit, the transparent cover and the back plate. 7. The auto-stereoscopic display as described in claim 6 is characterized in that it further comprises a cover plate, which is in contact with the upper surface of the base, the first display unit, the second display unit, the transparent cover plate, and the back plate. 8. The auto-stereoscopic display as described in claim 2 is characterized in that the backlight module includes a light guide plate, a first light source and a second light source, the light guide plate includes a first light guide portion, a second light guide portion and a light guide connecting portion, the first light guide portion and the second light guide portion are respectively adjacent to the first display unit and the second display unit, and are arranged at the specific angle, the light guide connecting portion connects the first light guide portion and the second light guide portion, a third optical element and a fourth optical element are respectively formed on the first light guide portion and the second light guide portion, the third optical element and the fourth optical element are adjacent to the light guide connecting portion, and are used to guide the light of the backlight module to the connecting seam, the first light source and the second light source are respectively adjacent to the first light guide portion and the second light guide portion. 9. The auto-stereoscopic display as described in claim 1 is characterized in that the backlight module includes a light guide plate, a first light source and a second light source, the light guide plate includes a first light guide portion, a second light guide portion and a light guide connecting portion, the first light guide portion and the second light guide portion are respectively adjacent to the first display unit and the second display unit, and are arranged at the specific angle, the light guide connecting portion connects the first light guide portion and the second light guide portion, the first optical element and the second optical element are respectively formed on the first light guide portion and the second light guide portion, and are adjacent to the light guide connecting portion, for guiding the light of the backlight module to the connecting seam, and the first light source and the second light source are respectively adjacent to the first light guide portion and the second light guide portion. 10. The auto-stereoscopic display as described in claim 9 is characterized in that the first display unit and the second display unit are abutted to form the connecting seam at the abutting point, the first display unit has a first side surface, the second display unit has a second side surface, the specific angle is sandwiched between the first side surface and the second side surface, a transparent sealing layer is attached to the first side surface, and a light shielding layer is attached to the second side surface. 11. The auto-stereoscopic display as described in claim 10 is characterized in that it further includes a base, the base having a first fixing portion and a second fixing portion, the first fixing portion fixing the first light source, the first light guide portion and one side of the first display unit, the second fixing portion fixing the second light source, the second light guide portion and one side of the second display unit, the first fixing portion including a first wall, the second fixing portion including a second wall, the first wall and the second wall being sandwiched at the specific angle. 12 . The auto-stereoscopic display according to claim 11 , further comprising a cover plate, wherein the cover plate contacts the upper surfaces of the base, the first display unit, and the second display unit to shield the backlight module. 13. The auto-stereoscopic display as described in claim 9 is characterized in that it further includes a transparent cover plate, the transparent cover plate includes a first covering portion, a second covering portion and a connecting portion, the first covering portion and the second covering portion are respectively arranged on the first light emitting surface and the second light emitting surface, the connecting portion connects the first covering portion and the second covering portion, and has a turning chamfer, the turning chamfer corresponds to the connecting seam, the first covering portion and the second covering portion are respectively formed with a third optical element and a fourth optical element, the third optical element and the fourth optical element are adjacent to the connecting seam, and respectively guide the light emitted from the first light emitting surface and the second light emitting surface toward the turning chamfer. 14 . The auto-stereoscopic display according to claim 1 , wherein the specific angle is 75 degrees to 105 degrees.