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

Naked-eye three-dimensional display

Technical Field

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

Background

In many common fields, the display is used to display dynamic pictures instead of single pictures of the traditional lamp box, which is the normal state of public advertisement. However, since the dynamic screen time is short, how to catch the eyes of the viewer is an urgent consideration.

When two display screens are arranged at a specific angle and the images are processed, the naked eyes can generate visual effects of naked eye stereoscopic images because of visual illusion. By means of stereoscopic 3D animation, the viewers can catch the eyes of the viewers more vividly.

In the prior art, besides the control of the pictures, the biggest problem at present is that the turned joint is easy to generate black shadows or inconsistent brightness of bright lines and the display screen. The stereoscopic animation can cause a problem of picture cutting due to discontinuous visual effects of the frame.

Disclosure of 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 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.

In some embodiments, the naked-eye stereoscopic display further comprises a transparent cover plate, wherein the transparent cover plate comprises a first cover part, a second cover part and a connecting part. The first cover part and the second cover part are respectively arranged 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 cover part and the second cover part. The connecting part is connected with the first covering part and the second covering part and is provided with a turning guide angle, the turning guide angle corresponds to the connecting joint, and the first optical element and the second optical element respectively guide the light rays emitted by the first light emitting surface and the second light emitting surface towards the connecting joint.

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

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 formed between the first side surface and the second side surface, and the first display unit and the second display unit are the same panel adjacent to the turning guide angle, and the reflective layer is disposed on the first side surface and the second side surface.

In more detail, in some embodiments, the naked eye stereoscopic display further includes a back plate and a base. The backlight module is arranged on the backboard. The base body is fixed with the first display unit, the second display unit, the transparent cover plate and the backboard. Further, in some embodiments, the stereoscopic display further includes a cover plate, which is in contact with the upper surfaces 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 comprises a first light guide part, a second light guide part and a light guide connecting part. The first light guide part and the second light guide part are respectively adjacent to the first display unit and the second display unit and are arranged at a specific included angle. The light guide connecting part is connected with the first light guide part and the second light guide part, and a third optical element and a fourth optical element are respectively formed on the first light guide part and the second light guide part. The third optical element and the fourth optical element are adjacent to the light guide connecting part and used for guiding light rays of the backlight module to the connecting joint, and the first light source and the second light source are adjacent to the first light guide part and the second light guide part respectively.

In some embodiments, the backlight module includes a light guide plate, a first light source and a second light source. The light guide plate comprises a first light guide part, a second light guide part and a light guide connecting part. The first light guide part and the second light guide part are respectively adjacent to the first display unit and the second display unit and are arranged at a specific included angle. The light guide connecting part is connected with the first light guide part and the second light guide part, the first optical element and the second optical element are respectively formed on the first light guide part and the second light guide part and are adjacent to the light guide connecting part 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 part and the second light guide part.

In more detail, in some embodiments, the first display unit and the second display unit are abutted, and a connecting seam is formed at the abutting position. The first display unit is provided with a first side surface, the first display unit is provided with a second side surface, a specific included angle is formed between the first side surface and the second side surface, a transparent sealing adhesive layer is attached to the first side surface, and a shading layer is attached to the second side surface.

In more detail, in some embodiments, the naked eye stereoscopic display further comprises a base. The base body is provided with a first fixing part and a second fixing part, and the first fixing part is used for fixing one side of the first light source, the first light guide part and the first display unit. The second fixing part is used for fixing one side of the second light source, one side of the second light guide part and one side of the second display unit, the first fixing part comprises a first wall, the second fixing part comprises a second wall, and a specific included angle is formed between the first wall and the second wall.

Further, in some embodiments, the naked eye stereoscopic display further comprises a cover plate. The cover plate is contacted with the upper surfaces of the base body, the first display unit and the second display unit to shield the backlight module.

In more detail, in some embodiments, the naked eye stereoscopic display further includes a transparent cover plate. The transparent cover plate comprises a first covering part, a second covering part and a connecting part. The first cover part and the second cover part are respectively arranged on the first light-emitting surface and the second light-emitting surface, and the connecting part is connected with the first cover part and the second cover part and has a turning guide angle. The turning guide angle corresponds to the connecting seam, the first covering part and the second covering part are respectively provided 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 respectively guide the light rays emitted by the first light emitting surface and the second light emitting surface towards the turning guide angle.

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

As described in the foregoing embodiments, the light is guided towards the connection seam by the first optical element and the second optical element, so that the brightness at the connection seam is substantially the same as the brightness of the light-emitting surface, and the images are continuous, thereby enhancing the visual effect of the stereoscopic image.

The invention will now be described in more detail with reference to the drawings and specific examples, which are not intended to limit the invention thereto.

Drawings

Fig. 1 is a perspective view of a first embodiment of a naked eye stereoscopic display.

Fig. 2 is a partially exploded view of a first embodiment of a naked eye stereoscopic display.

Fig. 3 is a partial top view of a first embodiment of a naked eye stereoscopic display.

Fig. 4 is a partial top view of a second embodiment of a naked eye stereoscopic display.

Fig. 5 is a partial top view of a third embodiment of a naked eye stereoscopic display.

Fig. 6 is a partial top view of a fourth embodiment of a naked eye stereoscopic display.

Wherein, the reference numerals:

1 naked-eye three-dimensional display

11 First display unit

111 First light-emitting surface

113 First side surface

13 Second display unit

131 A second light-emitting surface

133 Second side surface

15 Reflective layer

17 Light shielding layer

19 Transparent sealing glue layer

21 First optical element

23 Second optical element

30 Transparent cover plate

31 First cover part

33 Second cover part

35 Connecting portion

351 Inner surface

40 Backlight module

41 Light guide plate

411 First light guide part

413 Second light guide part

415 Light guide connection part

43 First light source

45 Second light source

51 Third optical element

53 Fourth optical element

55 Fifth optical element

57 Sixth optical element

60, Seat body

61 First fixing portion

611 First wall

63 Second fixing portion

631 Second wall

65 Back plate

70 Cover plate

R, turning guide angle

S connecting joint

Detailed Description

The structural and operational principles of the present invention are described in detail below with reference to the accompanying drawings:

In the drawings, the widths of portions of elements, regions, etc. are exaggerated for clarity. Like numbers refer to like elements throughout. It will be understood that when an element is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements present.

It will be understood that, although the terms "first," "second," "third," etc. may be used herein to describe various elements, components, regions, or sections, these elements, components, regions, and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a "first element," "component," "region," or "section" discussed below could be termed a second element, component, region, or section without departing from the teachings herein.

Fig. 1 is a perspective view of a first embodiment of a naked eye stereoscopic display. Fig. 2 is a partially exploded view of a first embodiment of a naked eye stereoscopic display. Fig. 3 is a partial top view of a first embodiment of a naked eye stereoscopic display. As shown in fig. 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, and a backlight module 40, a base 60, and a cover plate 70. For clarity of presentation, the top view of fig. 3 omits the cover 70 and a portion of the structure of the housing 60.

As shown in fig. 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 respect to the first light-emitting surface 111, wherein 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, approximately means perpendicular as seen by the naked eye, but allows for a slight angular deviation. The first display unit 11 and the second display unit 13 have a connection seam S therebetween. The first optical element 21 guides light to the connecting seam S adjacent to a position of the first display unit 11 near the connecting seam S. The second optical element 23 guides light to the connecting seam S adjacent to the position of the second display unit 13 near the connecting seam S. The light emitting direction of the backlight module 40 faces the first display unit 11 and the second display unit 13.

In the first embodiment, the stereoscopic display 1 further includes a transparent cover 30, and the transparent cover 30 includes a first cover portion 31, a second cover portion 33, and a connecting portion 35. The first and second cover portions 31 and 33 are provided on the first and second light-emitting surfaces 111 and 131, respectively, and the first and second optical elements 21 and 23 are formed on the first and second cover portions 31 and 33, respectively. More specifically, the first optical element 21 and the second optical element 23 may be prism patterns embossed on the first cover portion 31 and the second cover portion 33, and the light beams emitted from the first light emitting surface 111 and the second light emitting surface 131 may be respectively guided toward the connecting seam S by total reflection. The first cover portion 31 and the second cover portion 33 can be adhered to the first light-emitting surface 111 and the second light-emitting surface 131 through transparent optical adhesive. The connecting portion 35 connects the first covering portion 31 and the second covering portion 33, and has a turning guide angle R corresponding to the connecting seam S.

In some embodiments, the turning guide angle R is an arc guide angle, so that the direction of light beam divergence can be more uniform through the arc, and the influence of the connecting seam S on vision is reduced. In addition, in some embodiments, the inner surface 351 of the turning chamfer R is a roughened surface. Thus, the light scattering can be more uniform through the surface roughening treatment.

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, and a specific included angle is formed between the first side surface 113 and the second side surface 133 and is adjacent to the turning guide angle R. The first display unit 11 and the second display unit 13 are cut from the same panel, and the reflective layer 15 is disposed on the first side surface 113 and the second side surface 133. Thus, the light leakage on the side surface is transmitted and reflected, and then concentrated on the connecting seam S through the first optical element 21 and the second optical element 23, so that the light of the connecting seam S is similar to the light of the first display unit 11 and the second display unit 13, the shadow of the connecting seam S is reduced, and the continuous visual effect of the picture is achieved.

Referring to fig. 1 to 3 again, in the first embodiment, the stereoscopic 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 30 and the back plate 65. Further, the cover plate 70 is in contact with 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, in a plan view, the first display unit 11, the second display unit 13, and the back plate 65 of the first embodiment form a triangle, and the visual illusion is achieved through the space enclosed by the triangle, so as to achieve the stereoscopic image effect.

Fig. 4 is a partial top view of a second embodiment of a naked eye stereoscopic display. For convenience of illustration, the cover plate 70 and a part of the base 60 are omitted, and although the cover plate 70 of the second embodiment is not shown in the drawings, it can be understood with reference to fig. 1 and 2 that the cover plate 70 corresponds to a shape of the base 60 in a top view, contacts with 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 fig. 4, 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 411, a second light guide 413, and a light guide connection 415. The first light guide 411 and the second light guide 413 are adjacent to the first display unit 11 and the second display unit 13, respectively, and are arranged at a specific angle. The light guiding connection portion 415 is connected to the first light guiding portion 411 and the second light guiding portion 413, the first optical element 21 and the second optical element 23 are respectively formed on the first light guiding portion 411 and the second light guiding portion 413 and are adjacent to the light guiding connection portion 415 for guiding the light of the backlight module 40 to the connection seam S, and the first light source 43 and the second light source 45 are respectively adjacent to the first light guiding portion 411 and the second light guiding portion 413.

More specifically, the light guide plate 41 may be a light guide plate having a specific angle interposed therebetween, for example, an L-shape, and a shape thereof corresponds to the first display unit 11 and the second display unit 13. The first optical element 21 and the second optical element 23 are prism patterns embossed on the first light guide portion 411 and the second light guide portion 413, and guide the light beams emitted from the first light source 43 and the second light source 45 toward the connecting seam S by total reflection. If the first light emitting surface 111 and the second light emitting surface 131 are used as the front, the first embodiment is to dispose the first optical element 21 and the second optical element 23 at the front, and the second embodiment is to dispose the second optical element at the rear.

The second embodiment is different from the first embodiment in the structure of the base 60 and the cover 70, and the base 60 of the second embodiment has a first fixing portion 61 and a second fixing portion 63, where the first fixing portion 61 fixes one side of the first light source 43, the first light guiding portion 411 and the first display unit 11. The second fixing portion 63 fixes one side of the second light source 45, the second light guiding portion 413 and the second display unit 13, the first fixing portion 61 includes a first wall 611, the second fixing portion 63 includes a second wall 631, and the first wall 611 and the second wall 631 form a specific included angle. In other words, the second embodiment can be L-shaped at the angle of the base 60 corresponding to the light guide plate 41, the first display unit 11 and the second display unit 13, so that the size of the stereoscopic display 1 can be further reduced according to various mounting positions.

In addition, in some embodiments, the first display unit 11 and the second display unit 13 are abutted, a connecting seam S is formed at the abutting position, the first display unit 11 has a first side surface 113, the second display unit 13 has a second side surface 133, a specific included angle is formed between the first side surface 113 and the second side surface 133, the transparent sealing adhesive layer 19 is attached to the first side surface 113, and the light shielding layer 17 is attached to the second side surface 133 to prevent light from being exposed from the side. In other words, the first display unit 11 and the second display unit 13 may be the same panel or may be two panels. The overlapping 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 connecting seam S achieve the effects of consistent brightness and continuous pictures.

Fig. 5 is a partial top view of a third embodiment of a naked eye stereoscopic display. Fig. 6 is a partial top view of a fourth embodiment of a naked eye stereoscopic display. In fig. 5 and 6, the cover plate 70 and a part of the housing 60 are omitted for convenience of illustration. Fig. 5 shows a combination of the backlight module 40 according to the first embodiment and the second embodiment. In this way, the third optical element 51 and the fourth optical element 53 are further 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 connection portion 415 for guiding the light of the backlight module 40, i.e. the first light source 43 and the second light source 45, to the connection seam S, and 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.

Fig. 6 shows a combination of the transparent cover plate 30 of the second embodiment and the first embodiment. As described above, the fifth optical element 55 and the sixth optical element 57 are formed in the first cover portion 31 and the second cover portion 33, respectively. Here, "fifth" and "sixth" are merely sequential partitions, and the fifth optical element 55 and the sixth optical element 57 are adjacent to the connecting seam S, and guide the light emitted from the first light-emitting surface 111 and the second light-emitting surface 131 toward the turning guide angle R, respectively.

In summary, the light is guided toward the connecting seam S through the first optical element 21 and the second optical element 23, so that the brightness at the connecting seam S can be substantially the same as that of the first light-emitting surface 111 and the second light-emitting surface 131, and the images are continuous, thereby enhancing the visual effect of the stereoscopic image.

Of course, the present invention is capable of other various embodiments and its several details are capable of modification and variation in light of the present invention, as will be apparent to those skilled in the art, without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (14)

1. A naked eye stereoscopic display, comprising:

A first display unit having 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;

a first optical element adjacent to the first display unit near the connecting seam for guiding the light to the connecting seam;

a second optical element adjacent to the second display unit near the connecting seam for guiding the light to the connecting seam; and

The light emitting direction of the backlight module faces the first display unit and the second display unit.

2. The stereoscopic display of claim 1, further comprising a transparent cover plate, wherein the transparent cover plate comprises a first cover portion, a second cover portion and a connecting portion, the first cover portion and the second cover portion are respectively disposed 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 cover portion and the second cover portion, the connecting portion is connected with the first cover portion and the second cover portion and has a turning angle, the turning angle corresponds to the connecting seam, and the first optical element and the second optical element respectively guide the light emitted by the first light-emitting surface and the second light-emitting surface towards the connecting seam.

3. The bare eye stereoscopic display according to claim 2, wherein the turning chamfer is a circular arc chamfer.

4. The stereoscopic display of claim 2, wherein an inner surface of the turning chamfer is a roughened surface.

5. The stereoscopic display of claim 2, wherein the first display unit has a first side surface, the second display unit has a second side surface, the first side surface and the second side surface are disposed with the specific angle therebetween and are adjacent to the turning guide angle, the first display unit and the second display unit are a same panel, and a reflective layer is disposed on the first side surface and the second side surface.

6. The stereoscopic display of claim 2, further comprising a back plate and a base, wherein the backlight module is disposed on the back plate, and the base fixes the first display unit, the second display unit, the transparent cover plate and the back plate.

7. The stereoscopic display of claim 6, further comprising a cover plate contacting the upper surfaces of the base, the first display unit, the second display unit, the transparent cover plate, and the back plate.

8. The device as claimed in claim 2, wherein the backlight module comprises a light guide plate, a first light source and a second light source, the light guide plate comprises a first light guide portion, a second light guide portion and a light guide connection 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 in the specific angle, the light guide connection portion is connected with 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 connection portion for guiding the light of the backlight module to the connection 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.

9. The device of claim 1, wherein the backlight module comprises a light guide plate, a first light source and a second light source, the light guide plate comprises a first light guide portion, a second light guide portion and a light guide connection 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 included angle, the light guide connection portion is connected with 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 connection portion for guiding light of the backlight module to the connection 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 stereoscopic display of claim 9, wherein the first display unit and the second display unit are abutted, the abutting portion forms the connecting seam, the first display unit has a first side surface, the second display unit has a second side surface, the specific included angle is arranged 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 stereoscopic display of claim 10, further comprising 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 guiding portion and one side of the first display unit, the second fixing portion fixing the second light source, the second light guiding portion and one side of the second display unit, the first fixing portion comprising a first wall, the second fixing portion comprising a second wall, the first wall and the second wall sandwiching the specific angle.

12. The stereoscopic display of claim 11, further comprising a cover plate contacting the upper surfaces of the base, the first display unit, and the second display unit to shield the backlight module.

13. The stereoscopic display of claim 9, further comprising a transparent cover plate, wherein the transparent cover plate comprises a first cover portion, a second cover portion and a connecting portion, the first cover portion and the second cover portion are respectively disposed on the first light-emitting surface and the second light-emitting surface, the connecting portion connects the first cover portion and the second cover portion and has a turning angle, the turning angle corresponds to the connecting seam, a third optical element and a fourth optical element are respectively formed on the first cover portion and the second cover portion, the third optical element and the fourth optical element are adjacent to the connecting seam, and light emitted by the first light-emitting surface and the second light-emitting surface is respectively directed towards the turning angle.

14. The stereoscopic display of claim 1, wherein the specific included angle is from 75 degrees to 105 degrees.