TWI822365B - Active three-dimension display - Google Patents

Abstract

An active three-dimension 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 emitting surface of the first display unit and a second light emitting surface of the second display unit are arranged at a specific angle of 60 to 120 degrees, and there is a connecting seam between the first display unit and the second display unit. A first covering portion and a second covering portion of the transparent cover plate are respectively disposed on the first light emitting surface and the second light emitting surface. A connecting portion of the transparent cover plate connects the first covering portion and the second covering portion, and has a turning chamfer. The light emitting direction of the first backlight unit faces the first display unit and the second display unit. The light guide plate is arranged between the back plate and the connecting seam. The second backlight unit is located on one side of the light guide plate, and its light emitting direction faces the connecting seam.

Description

Active stereoscopic display

The invention relates to the field of display, in particular to an active three-dimensional display.

In many current public places, displaying dynamic images on monitors instead of the single images in traditional light boxes has become the norm for public advertising. However, due to the short duration of the dynamic scenes, how to catch the audience's attention is something we need to think about urgently.

When the two display screens are arranged at a specific angle and the images are processed, the visual effect of a naked-eye three-dimensional picture can be produced due to a visual illusion. The three-dimensional 3D animation is more vivid and can catch the audience's attention.

In the current technology, in addition to the control of the picture of the two display screens, the biggest problem at present is the turning joint. When a bright picture is produced, a black shadow will be formed, and when a dark picture is produced, backlight leakage will occur, and it is difficult to use traditional The diffusion plate is used to solve the problem. Due to the discontinuous visual effect of the border, the three-dimensional animation has the problem of screen cutting.

In order to solve the problems faced by the previous technology, an active stereoscopic display is provided. The active three-dimensional display includes a first display unit, a second display unit, a transparent cover, a backplane, a first backlight unit, a light guide plate, and a second backlight unit.

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 and the first light surface are arranged at a specific included angle, and the specific included angle is 60 to 120 degrees. There is a connecting seam between the first display unit and the second display unit. The transparent cover includes a first covering part, a second covering part and a connecting part. The first covering part and the second covering part are respectively provided 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. part, and has a turning lead angle. The first backlight unit is disposed on the backplane, and the light emitting direction of the first backlight unit faces the first display unit and the second display unit.

The light guide plate is disposed between the first backlight unit and the connecting seam. The second backlight unit is disposed on the first backlight unit and is located on one side of the light guide plate. The light emitting direction of the second backlight unit is toward the connecting seam.

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 sandwiched between the first side surface and the second side surface, and is adjacent to the turning angle.

In more detail, in some embodiments, the first display unit and the second display unit are the same panel, and a transparent sealant layer is provided on the first side surface and the second side surface.

In some embodiments, the inner surface of the turning corner is a roughened surface.

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

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

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

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

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

In more detail, in some embodiments, the active stereoscopic display further includes a cover plate, the cover plate covers the first display unit, the second display unit, the transparent cover plate, the back plate, and the upper surface of the light guide plate, and the cover plate has The heat dissipation hole roughly corresponds to the first backlight unit.

As mentioned in the previous embodiments, through the arrangement of the light guide plate and the second backlight unit, the light of the first backlight unit can be supplemented at the connection seam, or turned off when the picture is dark, thereby effectively preventing the three-dimensional picture from being displayed. It can eliminate the black shadow caused by the connection seam or the light leakage problem when the screen is turned off, thereby achieving better visual effects.

In the drawings, the widths of some elements, regions, etc. are exaggerated for clarity. Throughout this specification, the same reference numbers refer to the same elements. 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 do not shall be limited by these terms. These terms are only used to distinguish one element, component, region, 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.

Figure 1 is a perspective view of an active stereoscopic display. Figure 2 is a partially exploded view of an active stereoscopic display. Figure 3 is a partial top view of the active stereoscopic display. As shown in FIGS. 1 to 3 , the active stereoscopic display 1 includes a first display unit 11 , a second display unit 13 , a transparent cover 20 , a backplane 30 , a first backlight unit 40 , a light guide plate 50 , and a second backlight unit. 60. The base 70 and the cover 75 . For clear presentation, the cover plate 75 and the back plate 30 are omitted from the top view of FIG. 3 .

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 and the first light-emitting surface 111 are arranged at a specific included angle, and the specific included angle is 60 to 120 degrees, preferably 75 to 105 degrees. In essence, it can also be arranged in a roughly vertical manner. There is a connecting seam S between the first display unit 11 and the second display unit 13 . Here, "substantially vertical" means that it is vertical when viewed with the naked eye, but a small angle of deviation is allowed.

The transparent cover 20 includes a first covering part 21 , a second covering part 23 and a connecting part 25 . The first covering part 21 and the second covering part 23 are respectively provided on the first light-emitting surface 111 and the second light-emitting surface 131 . In more detail, the first covering part 21 and the second covering part 23 are bonded to the first light-emitting surface 111 and the second light-emitting surface 131 through transparent optical glue. Since the transparent cover 20 is, for example, an acrylic transparent hard cover, the angle between the first display unit 11 and the second display unit 13 can be fixed while also preventing the first display unit 11 and the second display unit 13 from being subjected to external force. And offset. The connecting portion 25 of the transparent cover 20 connects the first covering portion 21 and the second covering portion 23 and has a turning angle R. The turning angle R corresponds to the connecting seam S.

The first backlight unit 40 is disposed on the back panel 30 , and the light emitting direction of the first backlight unit 40 faces the first display unit 11 and the second display unit 13 . In more detail, from a top view, the first backlight unit 40 forms a triangle with the first display unit 11 and the second display unit 13 . The first backlight unit 40 emits light toward the first display unit 11 and the second display unit 13 .

The light guide plate 50 is disposed between the first backlight unit 40 and the connection slit S. The second backlight unit 60 is disposed on the first backlight unit 40 and is located on one side of the light guide plate 50 . The light emitting direction of the second backlight unit 60 is toward the connecting slit S. In more detail, 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 to the connecting seam S through the light guide plate 50 . In this way, when the first display unit 11 and the second display unit 13 present bright images, a brightening effect is achieved and the purpose of supplementary light is achieved, thereby avoiding the generation of black shadows at the connection seam S, and making the images continuous.

In FIG. 3 , the second backlight unit 60 is shown embedded in the light guide plate 50 , but this is only an example and not a limitation. In fact, the second backlight unit 60 only needs to be close enough to the light guide plate 50 to concentrate the light generated by the second backlight unit 60 into the light guide plate 50 . Therefore, as shown in FIGS. 2 , 4 , and 5 , the second backlight unit 60 can also be There is a gap between the unit 60 and the light guide plate 50 .

Furthermore, when the first display unit 11 and the second display unit 13 present dark images, the second backlight unit 60 is directly turned off. In this way, the effect of avoiding light leakage is also achieved.

Referring again to FIGS. 1 to 3 , the base 70 fixes the first display unit 11 , the second display unit 13 , the transparent cover 20 , the back plate 30 , and the light guide plate 50 to maintain the position of the components and avoid loosening. In addition, a shielding portion 27 may be provided on the transparent cover 20 close to the base 70 . The shielding part 27 is attached to the first covering part 21 , the second covering part 23 and the connecting part 25 , so that the active stereoscopic display 1 presents a full darkening effect in the non-display area, for example, the bottom.

In addition, the cover plate 75 covers the first display unit 11 , the second display unit 13 , the transparent cover plate 20 , the back plate 30 , and the upper surfaces of the light guide plate 50 . The cover 75 further has heat dissipation holes 751 , and the heat dissipation holes 751 generally correspond to the first backlight unit 40 . Here, it roughly means that the vertical projections overlap substantially, but some errors are allowed. Here, although there are multiple heat dissipation holes 751 in the illustration, there may actually be one or more, and an appropriate number can be designed according to the actual heat flow conditions.

Furthermore, in order to achieve a better visual effect, the inner surface 251 of the turning angle R of the connecting portion 25 is a roughened surface. The roughened surface of the light-transmitting surface causes the light to scatter and diffuse, so that the light passing through the connecting seam S diffuses to the surroundings, thereby achieving better and excellent visual performance. In addition, the turning angle R can be controlled to be an arc angle to make the light emission angle more uniform.

Referring again to FIG. 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 sandwiched between the first side surface 113 and the second side surface 133 , and is adjacent to Turning angle R. The first side surface 113 and the second side surface 133 produce local light leakage, and the light diffusion effect can be achieved by turning the lead angle R.

In more detail, in some embodiments, the first display unit 11 and the second display unit 13 are the same panel, which is turned by cutting. In this way, the first display unit 11 and the second display unit 13 share the thin film transistor layer. control. In addition, a transparent sealant layer 90 is provided on the first side surface 113 and the second side surface 133 to allow the light leaking from the side to pass through, and then through the inner surface 251 of the turning corner R and its roughened surface. Achieve light diffusion effect.

Figure 4 is a partial top view of the light guide plate. Figure 5 is a partial top view of another embodiment of the light guide plate. As shown in FIGS. 4 and 5 , 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 in the light guide plate 50 toward the connection slit S without being exposed outside. leak. The light-collecting element can be a light-shielding sheet 55 as shown in FIG. 4 to prevent light leakage through light-shielding. The light collecting element may also be a reflective sheet 57 as shown in FIG. 5 , which reflects the light generated by the second backlight unit 60 so that it is reflected in the light guide plate 50 . However, the above is only an example and is not intended to be limiting. In fact, the light collecting element may also be an optical microstructure formed on the side surface of the light guide plate 50 through imprinting, for example, a tungsten structure. Through its refraction or reflection, function to achieve the effect of light collection.

In summary, through the arrangement of the light guide plate 50 and the second backlight unit 60, the light of the first backlight unit 40 can be supplemented at the connecting seam S when a bright picture is displayed, or it can be turned off when a dark picture is displayed. This can effectively avoid the black shadow produced on the connection seam S when the three-dimensional image is displayed, or the light leakage problem when the image is turned off, thereby achieving better visual effects.

Although the technical content of the present invention has been disclosed above in the form of preferred embodiments, it is not intended to limit the present invention. Any slight changes and modifications made by anyone skilled in the art without departing from the spirit of the present invention should be covered by the present invention. Within the scope of the present invention, the protection scope of the present invention shall be subject to the scope of the appended patent application.

1: Active stereoscopic display 11: First display unit 111:The first shining surface 113: First side surface 13: Second display unit 131: The second shining surface 133: Second side surface 20:Transparent cover 21:First coverage department 23:Second Covering Section 25:Connection part 251:Inner surface 27:Shading part 30:Back panel 40: First backlight unit 50:Light guide plate 55:Shading film 57: Reflective sheet 60: Second backlight unit 70: base body 75:Cover 751:Heat dissipation hole 90:Transparent sealant layer R: Turning angle S: connecting seam

Figure 1 is a perspective view of an active stereoscopic display. Figure 2 is a partially exploded view of an active stereoscopic display. Figure 3 is a partial top view of the active stereoscopic display. Figure 4 is a partial top view of the light guide plate. Figure 5 is a partial top view of another embodiment of the light guide plate.

11: First display unit

111:The first shining surface

113: First side surface

13: Second display unit

131: The second shining surface

133: Second side surface

20:Transparent cover

21:First coverage department

23:Second Covering Section

25:Connection part

251:Inner surface

40: First backlight unit

50:Light guide plate

60: Second backlight unit

90:Transparent sealant layer

R: Turning angle

S: connecting seam

Claims (10)

An active stereoscopic display containing: a first display unit having a first light-emitting surface; A second display unit has 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 the first display unit and the second display There is a connecting seam between units; A transparent cover includes a first covering part, a second covering part and a connecting part. The first covering part and the second covering part are respectively provided on the first light-emitting surface and the second light-emitting surface. The connection part The part connects the first covering part and the second covering part and has a turning angle; a back plate; A first backlight unit is disposed on the backplane, with the light emitting direction of the first backlight unit facing 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 is located on one side of the light guide plate, with the light emitting direction of the second backlight unit facing the connecting seam. The active three-dimensional 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, and between the first side surface and the second side surface The specific included angle is provided and adjacent to the turning lead angle. The active three-dimensional display according to claim 2, wherein the first display unit and the second display unit are a same panel, and a transparent sealant layer is provided on the first side surface and the second side surface. The active three-dimensional display as claimed in claim 1, wherein an inner surface of the turning corner is a roughened surface. The active three-dimensional display as claimed in claim 1, wherein the turning angle is an arc angle. The active three-dimensional display as claimed in claim 1, wherein a light collecting element is provided on one side surface of the light guide plate. The active three-dimensional display as claimed in claim 6, wherein the light collecting element is a light-shielding sheet, a reflective sheet, or an optical microstructure formed on the side surface. The active stereoscopic display as claimed in claim 1, wherein the specific included angle is 75 degrees to 105 degrees. The active three-dimensional display as claimed in claim 1 further includes a base body that fixes the first display unit, the second display unit, the transparent cover plate, the back plate, and the light guide plate. The active three-dimensional display according to claim 1, further comprising a cover plate that covers the first display unit, the second display unit, the transparent cover plate, the back plate, and the upper surface of the light guide plate , and the cover plate has a heat dissipation hole, and the heat dissipation hole roughly corresponds to the first backlight unit.

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