Active autostereoscopic display

Abstract

An active stereoscopic display includes a first display unit, a second display unit, a transparent cover plate, a back plate, a first backlight unit, a light guide plate, and a second backlight unit. A first light exit surface of the first display unit and a second light exit surface of the second display unit are arranged at a specific included angle of 60 to 120 degrees, and a connecting seam is provided between the first display unit and the second display unit. A first cover portion and a second cover portion of the transparent cover plate are respectively provided on the first light exit surface and the second light exit surface, a connecting portion connects the first cover portion and the second cover portion, and has a turning guide angle. A light exit direction of the first backlight unit is toward the first display unit and the second display unit. The light guide plate is provided between the back plate and the connecting seam. The second backlight unit is located on one side of the light guide plate, and a light exit direction thereof is toward the connecting seam.

Description

Technical Field

[0001] This invention relates to the field of displays, and in particular to an active stereoscopic display. Background Technology

[0002] In many public spaces today, displaying dynamic images on monitors to replace the single images of traditional light boxes has become the norm for public advertising. However, since dynamic images are short-lived, how to capture the viewer's attention is a pressing issue that needs to be addressed.

[0003] By arranging two display screens at a specific angle and processing the images, a stereoscopic visual effect can be created when viewed with the naked eye due to visual illusion. This stereoscopic 3D animation is more vivid and can capture the viewer's attention.

[0004] With current technology, besides image control, the biggest problem with two display screens is the seam at the transition point. When displaying a bright image, shadows appear, and when displaying a dark image, backlight leakage occurs, which is difficult to solve with traditional diffuser plates. The discontinuous visual effect of the bezel causes image segmentation issues in 3D animations. Summary of the Invention

[0005] To address the problems encountered in prior art, an active stereoscopic display is provided. The active stereoscopic display includes a first display unit, a second display unit, a transparent cover plate, a back plate, a first backlight unit, a light guide plate, and a second backlight unit.

[0006] The first display unit has a first light-emitting surface. The second display unit has a second light-emitting surface, which is arranged at a specific angle to the first light-emitting surface, the specific angle being 60 to 120 degrees, and a connecting seam is provided between the first display unit and the second display unit. 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 connecting portion connects the first covering portion and the second covering portion and has a beveled angle. The first backlight unit is disposed on the back plate, and the light emission direction of the first backlight unit faces the first display unit and the second display unit.

[0007] A light guide plate is disposed between the first backlight unit and the connecting seam. A second backlight unit is disposed on the first backlight unit and located on one side of the light guide plate, with the light emission direction of the second backlight unit facing the connecting seam.

[0008] 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 is adjacent to a turning bevel angle.

[0009] More specifically, in some embodiments, the first display unit and the second display unit are the same panel, and a transparent sealing layer is provided on the first side surface and the second side surface.

[0010] In some embodiments, the inner surface of the bend angle is a roughened surface.

[0011] In some embodiments, the turning guide angle is a rounded guide angle.

[0012] In some embodiments, a light-collecting unit is provided on the side surface of the light guide plate.

[0013] Furthermore, in some embodiments, the light-collecting element is a light-shielding sheet, a reflective sheet, or an optical microstructure formed on the side surface.

[0014] In some embodiments, the specific included angle is 75 degrees to 105 degrees.

[0015] In some embodiments, the active stereoscopic display further includes a base. The base secures the first display unit, the second display unit, the transparent cover plate, the back plate, and the light guide plate.

[0016] More specifically, in some embodiments, the active stereoscopic display further includes a cover plate that shields the upper surface of the first display unit, the second display unit, the transparent cover plate, the back plate, and the light guide plate, and the cover plate has heat dissipation holes that substantially correspond to the first backlight unit.

[0017] As described in the previous embodiments, by setting up the light guide plate and the second backlight unit, the light from the first backlight unit can be supplemented at the joint seam, or turned off when the screen is dark, which can effectively avoid the black shadows generated on the joint seam when the three-dimensional screen is displayed, or the light leakage problem when the screen is turned off, thus achieving a better visual effect. Attached Figure Description

[0018] Figure 1 This is a stereoscopic image of an active stereoscopic display.

[0019] Figure 2 This is a partial exploded view of an active stereoscopic display.

[0020] Figure 3 This is a partial top view of an active stereoscopic display.

[0021] Figure 4 This is a partial top view of the light guide plate.

[0022] Figure 5 This is a partial top view of another embodiment of the light guide plate.

[0023] In the attached figures, the following labels are used:

[0024] 1: Active stereoscopic display

[0025] 11: First display unit

[0026] 111: First surface to be illuminated

[0027] 113: First side surface

[0028] 13: Second display unit

[0029] 131: Second light-emitting surface

[0030] 133: Second side surface

[0031] 20: Transparent cover

[0032] 21: First Covering Section

[0033] 23: Second Cover Section

[0034] 25: Connecting part

[0035] 251: Inner surface

[0036] 27: Shelter

[0037] 30: Backplate

[0038] 40: First backlight unit

[0039] 50: Light guide plate

[0040] 55: Light-blocking sheet

[0041] 57: Reflector

[0042] 60: Second backlight unit

[0043] 70: base body

[0044] 75: Cover plate

[0045] 751: Heat dissipation holes

[0046] 90: Transparent sealing layer

[0047] R: Turning Angle

[0048] S: Seam Detailed Implementation

[0049] In the accompanying drawings, the widths of some elements, areas, etc., have been enlarged for clarity. Throughout the specification, the same reference numerals denote the same elements. It should be understood that when an element is referred to as being "on" or "connected" to another element, it may be directly on or connected to the other element, or intermediate elements may also be present. Conversely, when an element is referred to as being "directly on" or "directly connected" to another element, no intermediate elements are present.

[0050] It should be understood that although the terms "first," "second," "third," etc., may be used herein to describe various elements, components, regions, or parts, these elements, components, regions, and / or parts should not be limited by these terms. These terms are used only to distinguish one element, component, region, or part from another element, component, region, layer, or part. Therefore, "first element," "component," "region," or "part" discussed below may be referred to as a second element, component, region, or part without departing from the teachings of this document.

[0051] Figure 1 This is a stereoscopic image of an active stereoscopic display. Figure 2 This is a partial exploded view of an active stereoscopic display. Figure 3 This is a partial top view of an active stereoscopic display. (Example) Figures 1 to 3 As shown, the active stereoscopic display 1 includes a first display unit 11, a second display unit 13, a transparent cover plate 20, a back plate 30, a first backlight unit 40, a light guide plate 50, a second backlight unit 60, a base 70, and a cover plate 75. For clear presentation, Figure 3 The top view omits cover plate 75 and back plate 30.

[0052] like Figures 1 to 3 As shown, the first display unit 11 has a first light-emitting surface 111. The second display unit 13 has a second light-emitting surface 131, which is arranged at a specific angle to the first light-emitting surface 111. The specific angle is 60 to 120 degrees, preferably 75 to 105 degrees. In fact, they can also be arranged in a substantially perpendicular manner. A connecting seam S is provided between the first display unit 11 and the second display unit 13. Here, "substantially perpendicular" means perpendicular when viewed with the naked eye, but a small angular deviation is allowed.

[0053] The transparent cover plate 20 includes a first covering portion 21, a second covering portion 23, and a connecting portion 25. The first covering portion 21 and the second covering portion 23 are respectively disposed on the first light-emitting surface 111 and the second light-emitting surface 131. More specifically, the first covering portion 21 and the second covering portion 23 are bonded to the first light-emitting surface 111 and the second light-emitting surface 131 through a transparent optical adhesive. Since the transparent cover plate 20 is, for example, a transparent rigid acrylic cover plate, the clamping angle of the first display unit 11 and the second display unit 13 can be fixed, and the first display unit 11 and the second display unit 13 can be prevented from shifting due to external forces. The connecting portion 25 of the transparent cover plate 20 connects the first covering portion 21 and the second covering portion 23 and has a bevel angle R. The bevel angle R corresponds to the connecting seam S.

[0054] The first backlight unit 40 is disposed on the back panel 30, and the light emission direction of the first backlight unit 40 is towards the first display unit 11 and the second display unit 13. More specifically, in a top view, the first backlight unit 40, the first display unit 11, and the second display unit 13 form a triangle. The first backlight unit 40 emits light towards the first display unit 11 and the second display unit 13.

[0055] A light guide plate 50 is disposed between the first backlight unit 40 and the connecting seam S. A second backlight unit 60 is disposed on the first backlight unit 40 and located to one side of the light guide plate 50, with the light emission direction of the second backlight unit 60 facing the connecting seam S. More specifically, the light guide plate 50 is located between the first display unit 11 and the second display unit 13, and the light from the second backlight unit 60 is directly projected onto the connecting seam S through the light guide plate 50. Thus, when the first display unit 11 and the second display unit 13 display a bright image, a brightening effect and supplementary lighting are achieved, preventing shadows from appearing at the connecting seam S and ensuring image continuity.

[0056] exist Figure 3 In this example, the second backlight unit 60 is embedded in the light guide plate 50, but this is merely an example and not intended to limit the concept. In practice, the second backlight unit 60 only needs to be sufficiently close to the light guide plate 50 to concentrate the light generated by the second backlight unit 60 into the light guide plate 50; therefore, it can also be arranged as follows... Figure 2 , 4 As shown in Figures 5 and 6, there is a gap between the second backlight unit 60 and the light guide plate 50.

[0057] Furthermore, when the first display unit 11 and the second display unit 13 display a dark image, the second backlight unit 60 is directly turned off, thus achieving the effect of avoiding light leakage.

[0058] See again Figures 1 to 3 The base 70 secures the first display unit 11, the second display unit 13, the transparent cover plate 20, the back plate 30, and the light guide plate 50, maintaining the position of the components and preventing them from becoming loose. Additionally, a shielding portion 27 may be provided near the base 70 on the transparent cover plate 20. The shielding portion 27 is attached to the first covering portion 21, the second covering portion 23, and the connecting portion 25, so that the active stereoscopic display 1 presents a completely dark effect in non-display areas, such as the bottom.

[0059] Additionally, the cover plate 75 shields the upper surfaces of the first display unit 11, the second display unit 13, the transparent cover plate 20, the back plate 30, and the light guide plate 50. The cover plate 75 further has heat dissipation holes 751, which substantially correspond to the first backlight unit 40. Here, "substantially" means that they are basically vertically projected and overlapped, but some error is permissible. Although multiple heat dissipation holes 751 are shown in the illustration, there can actually be one or more, with the appropriate number designed to suit the actual heat flow conditions.

[0060] Furthermore, to achieve a better visual effect, the inner surface 251 of the bend angle R of the connecting part 25 is roughened. This roughening of the light-transmitting surface causes light to scatter and diffuse, allowing light passing through the connecting seam S to diffuse outwards, resulting in superior visual performance. In addition, the bend angle R can be controlled to be a rounded bend angle to make the light dispersion angle more uniform.

[0061] See again Figure 3 The first display unit 11 has a first side surface 113, and the second display unit 13 has a second side surface 133. A specific angle is formed between the first side surface 113 and the second side surface 133, and it is adjacent to the turning angle R. The first side surface 113 and the second side surface 133 produce local light leakage, which can be diffused by the turning angle R.

[0062] More specifically, in some embodiments, the first display unit 11 and the second display unit 13 are the same panel, which is bended by cutting. In this way, the first display unit 11 and the second display unit 13 share the control of the thin-film transistor layer. In addition, a transparent sealant layer 90 is provided on the first side surface 113 and the second side surface 133 to allow light leaking from the side to pass through, and the light diffusion effect is achieved by the bend angle R and the inner surface 251 of the roughened surface.

[0063] Figure 4 This is a partial top view of the light guide plate. Figure 5 This is a partial top view of another embodiment of the light guide plate. Figure 4 and Figure 5 As shown, a light-collecting element is provided on the side surface of the light guide plate 50. The function of the light-collecting element is to concentrate the light from the second backlight unit 60 into the light guide plate 50, directing it towards the connecting seam S without leakage. The light-collecting element can be... Figure 4 The light-shielding plate 55 shown prevents light leakage by blocking light. The light-collecting element can also be as follows: Figure 5The reflector 57 shown reflects the light generated by the second backlight unit 60 into the light guide plate 50. However, the above is only an example and not intended to limit the application. In reality, the light-collecting element can also be an optical microstructure formed on the side surface of the light guide plate 50 by an embossing method, such as a prism structure, which achieves the light-collecting effect through its refraction or reflection function.

[0064] In summary, by setting up the light guide plate 50 and the second backlight unit 60, the light from the first backlight unit 40 can be supplemented at the seam S when displaying a bright image, or turned off when displaying a dark image. This can effectively avoid the shadows generated on the seam S when displaying a three-dimensional image, or the light leakage problem when the image is turned off, thus achieving a better visual effect.

[0065] Of course, the present invention may have other various embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding changes and modifications should all fall within the protection scope of the claims of the present invention.

Claims

1. An active stereoscopic display, characterized in that, Include: A first display unit has a first light-emitting surface; A second display unit has a second light-emitting surface, which is arranged at a specific angle to the first light-emitting surface, the specific angle being 60 to 120 degrees, and a connecting seam is provided between the first display unit and the second display unit; A transparent cover plate includes a first covering part, a second covering part and a connecting part. The first covering part and the second covering part are respectively disposed on the first light-emitting surface and the second light-emitting surface. The connecting part connects the first covering part and the second covering part and has a beveled angle. One back panel; A first backlight unit is disposed on the back panel, and the light emission direction of the first backlight unit is towards the first display unit and the second display unit; A light guide plate is disposed between the first backlight unit and the connecting seam; and A second backlight unit is disposed on the first backlight unit and located on one side of the light guide plate, with the light emission direction of the second backlight unit facing the connecting seam.

2. The active stereoscopic display as claimed in claim 1, wherein the first display unit has a first side surface, the second display unit has a second side surface, the specific included angle is provided between the first side surface and the second side surface, and is adjacent to the turning angle.

3. The active stereoscopic display as described in claim 2, wherein the first display unit and the second display unit are on the same panel, and a transparent sealing layer is disposed on the first side surface and the second side surface.

4. The active stereoscopic display as claimed in claim 1, wherein one inner surface of the bend angle is a roughened surface.

5. The active stereoscopic display as claimed in claim 1, wherein the turning angle is a rounded corner.

6. The active stereoscopic display as claimed in claim 1, wherein a light-collecting element is disposed on one side surface of the light guide plate.

7. The active stereoscopic display of claim 6, wherein the light-collecting element is a light-shielding sheet, a reflective sheet, or an optical microstructure formed on the side surface.

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

9. The active stereoscopic display as claimed in claim 1 further comprises a base for fixing the first display unit, the second display unit, the transparent cover plate, the back plate, and the light guide plate.

10. The active stereoscopic display as claimed in claim 1, further comprising a cover plate that shields the upper surface of the first display unit, the second display unit, the transparent cover plate, the back plate, and the light guide plate, and the cover plate having a heat dissipation hole that substantially corresponds to the first backlight unit.

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