TW202026717A - Spliced display - Google Patents

Abstract

A spliced display includes at least two display devices arranged in sequence. The display device has a front surface that is viewed by users. The two adjacent display devices are provided with two image compensating elements. Each image compensating element is correspondingly disposed on a front surface of a display device. The image compensating element includes a plurality of light guiding channels, and light guiding paths of the light guiding channels are independent from each other. Light emitting surface of the image compensating element is provided with a light guiding sheet. The light guiding sheet includes a plurality of light guiding channels, and light guiding paths of the light guiding channels are independent from each other. The light guiding channels of the light guiding sheet is coupled to the light guiding channels of the image compensating element. An extending direction of the light guiding channels of the light guiding sheet is perpendicular to the front surface. The display screens of the adjacent two display devices form a continuous display image.

Description

Spliced display

The invention relates to a spliced display.

In order to realize the large screen of the display device, a conventional method is to arrange and connect a plurality of display devices (referred to as "splicing") to virtually realize the display of the large screen. Each display device usually has a display area in which a plurality of pixels are arranged and a frame area surrounding the display area. However, when multiple display devices are used for splicing, there is a problem that the frame area (seam) of the multiple display devices can be seen, which is not conducive to the presentation of the screen, which greatly affects the user's perception.

In view of this, it is necessary to provide a spliced display that can realize borderless display between adjacent display devices.

A spliced display, comprising: at least two display devices arranged in sequence, each display device having a front side viewed by a user, the front side including a display area and a frame area located outside the display area; Two image compensation elements are arranged adjacent to the two display devices, and each image compensation element is correspondingly arranged on the front of a display device; the image compensation element includes a light-incident surface covering the display area, and a connection point The light-emitting surface of the light-incident surface and the connecting surface connecting the light-incident surface and the light-emitting surface; the image compensation element includes a plurality of light guide channels, and the light guide paths of the plurality of light guide channels are independent of each other and follow The light incident surface extends in the direction of the light exit surface; a light guide sheet is arranged on the light exit surface of each image compensation element, and the light guide sheet includes a plurality of light guide channels with independent light guide paths. The light guide channel and the light guide channel of the image compensation element are mutually conductive; the extension direction of the light guide channel of the light guide sheet is perpendicular to the front of the display device; the extension direction of the light guide channel of the light guide sheet and the image The extending directions of the light guide channels of the compensation element cross to form an included angle.

A spliced display, comprising: at least two display devices arranged in sequence, each display device having a front side viewed by a user, the front side including a display area and a frame area located outside the display area; Two image compensation elements are arranged adjacent to the two display devices, and each image compensation element is correspondingly set in the display area on the front of a display device, and each image compensation element is used for the display screen to be covered by it. Output and offset toward another adjacent display device; a light guide sheet is arranged on the light emitting surface of each image compensation element, and the light guide sheet is used for the light emitted from the corresponding image compensation element Export in a direction perpendicular to the front surface.

The spliced display of the present invention is provided with an image compensation element and a light guide sheet on the front of the display device, so as to present a display screen on the part of the front surface covered by the image compensation element. And shift toward another adjacent display device, so that the display screens of two adjacent display devices form a continuous screen.

The drawings show embodiments of the present invention. The present invention can be implemented in a variety of different forms, and should not be interpreted as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to make the present invention more comprehensive and complete, and to enable those skilled in the art to fully understand the scope of the present invention. In order to be clearly visible, in the figure, the size of layers and regions have been enlarged.

First Embodiment Referring to FIGS. 1 and 2, the spliced display 100 of the first embodiment includes two display devices 10. The two display devices 10 are arranged in a straight line. Each display device 10 includes a front surface 11 and a back surface 13 opposite to the front surface 11. The front side 11 is the surface that the user views/contacts, and the front side 11 defines a display area 111 for displaying pictures and a frame area 113 outside the display area 111 where no pictures are displayed. In this embodiment, the frame area 113 is located outside the display area 111. For example, as shown in FIG. 2, the frame area 113 surrounds the display area 111. The two front faces 11 of two adjacent display devices 10 are basically located on the same plane.

It can be understood that the number of display devices 10 included in the spliced display 100 is not limited to two, as long as it is greater than or equal to two. The display devices 10 in the spliced display 100 are arranged in sequence.

In this embodiment, two adjacent display devices 10 are arranged at intervals, and two adjacent frame regions 113 of the two display devices 10 are arranged at intervals. In other embodiments, the two adjacent display devices 10 may also be arranged in contact, and the frame regions 113 of the two adjacent display devices are in contact with each other.

As shown in FIG. 1, in order to enable the user to watch the display screen of the spliced display 100, the continuous display can be seen without being affected by any two adjacent display devices 10 close to the frame area 113 of the splicing place. Picture (visual effect without border), at least one image compensation element 20 and at least one light guide sheet 30 are provided on the front side 11 of each display device 10 to cover the part of the front side 11 covered by the image compensation element 20 The displayed display screen is exported by the image compensation element 20 and the light guide sheet 30, so that the display screens of two adjacent display devices 10 are connected to form a continuous (non-disconnected) screen. The “splicing place” mentioned herein refers to an area where any two adjacent display devices 10 are adjacently butted.

Referring to FIG. 3, two image compensation elements 20 are provided adjacent to any two adjacent display devices 10, and the two image compensation elements 20 are respectively provided corresponding to one display device 10. Each image compensation element 20 is disposed in the display area 111 of the front surface 11 of the corresponding display device 10 and adjacent to the frame area 113 of the display device 10. The image compensation element 20 does not directly contact the frame area 113 covering the front surface 11. In this embodiment, the area of the display area 111 not covered by the image compensation element 20 is defined as the main display area, and the area of the display area 111 covered by the image compensation element 20 is defined as the edge display area.

Please refer to FIG. 3. In this embodiment, the image compensation element 20 has a triangular prism shape with a triangular cross section. The image compensation element 20 includes a light incident surface 21, a light output surface 23, and a connecting surface 25 connecting the light incident surface 21 and the light output surface 23. The light incident surface 21, the light exit surface 23, and the connecting surface 25 respectively serve as three surfaces of a triangular prism body. The light incident surface 21 covers the display area 111 of the front surface 11 and does not cover the frame area 113. In this embodiment, the edge of the light incident surface 21 near the splicing point is aligned with the edge of the frame area 113 near the display area 111 to avoid Light leaks from between the frame area 113 and the image compensation element 20. The light exit surface 23 and the light entrance surface 21 intersect to form an acute angle, and the connecting surface 25 connects the light exit surface 23 and the light entrance surface 21 and connects the light exit surface 23 and the light entrance surface 21 Stay away from the end where the two intersect. The image compensation element 20 includes a plurality of light guide channels 27, and the light guide paths of the plurality of light guide channels 27 are independent of each other and extend in a direction from the light entrance surface 21 to the light exit surface 23. The plurality of light guide channels 27 are sequentially connected to form the image compensation element 20. In this embodiment, the extending directions of the plurality of light guide channels 27 are basically the same and arranged in an array. The area of each light guide channel 27 of the image compensation element 20 on the light exit surface 23 is larger than the area of the light guide channel 27 on the light entrance surface 21, that is, the end surface of each light guide channel 27 on the light exit surface 23 is formed as Incline. Each image compensation element 20 is used for exporting the display screen covered by it and shifting it toward another adjacent display device 10.

Please refer to FIG. 3, a light guide sheet 30 is provided on the light emitting surface 23 of each image compensation element 20. The light guide sheet 30 and the image compensation element 20 are made of the same material, and it also includes a plurality of light guide channels 37 with independent light guide paths. The extending direction of the light guide channel 37 is perpendicular to the front surface 11 of the display device 10. The light guide channel 37 of the light guide sheet 30 and the light guide channel 27 of the image compensation element 20 are in a mutually conductive relationship (for example, each light guide channel 37 corresponds to and communicates with one light guide channel 27 of the image compensation element 20) . The extending direction of the light guiding channel 37 of the light guiding sheet 30 and the extending direction of the light guiding channel 27 of the image compensation element 20 cross to form an angle.

The light output angle of the image compensation element 20 is relatively deviated to the joint of two adjacent display devices 10, and the light guide sheet 30 can guide the positive optical axis direction to be perpendicular to the front surface 11 of the display device 10, so that the spliced display The light emitting direction of the whole 100 is more uniform, and the light guide sheet 30 can also solve the problem of uneven brightness in the area corresponding to the image compensation element 20, and the user will feel that the area of the image compensation element 20 has uniform brightness when watching .

The light guide sheet 30 includes a light entrance surface 31 attached to the light exit surface 23 of the image compensation element 20, a light exit surface 32 parallel to and opposite to the light entrance surface 31, and a connection between the light entrance surface 31 and the light exit surface 32 The first connection surface 33 and the second connection surface 34. In this embodiment, the top view of the light guide sheet 30 is trapezoidal. The light guide channel 37 extends along the light incident surface 31 toward the light exit surface 32. The extending direction of the light guide channel 37 is parallel to the first connecting surface 33. The two first connecting surfaces 33 of two adjacent light guide sheets 30 directly contact and are attached to each other.

In this embodiment, the light guide sheet 30 not only completely covers the light exit surface 23 of the image compensation element 20 but also extends to partially cover the display area 111 of the front surface 11 of the display device 10. As shown in FIG. 2, the second connection surface 34 is attached to the display area 111 of the front surface 11. In other embodiments, the light guide sheet 30 may only completely cover the light emitting surface 23 of the image compensation element 20 and not extend to partially cover the display area 111 of the front surface 11; at this time, the second connecting surface 34 is not attached to the front surface 11 Display area 111.

Please refer to FIG. 3, the two light-emitting surfaces 32 of the two light guide sheets 30 arranged adjacent to two adjacent display devices 10 are connected/spliced to each other.

It can be understood that each light guide channel 27 and each light guide channel 37 is a light guide fiber. In this embodiment, the optical fiber may be a plastic optical fiber, a quartz optical fiber, a glass optical fiber, or the like.

The light from the main display area of the display device 10 is directly emitted to be seen by the user or incident on the light guide sheet 30 and then emitted to be seen by the user. The user can view the screen image of the main display area; and the light from the display device 10 The light in the edge display area enters the light guide channel 27 from the light entrance surface 21 of the image compensation element 20, then exits from the light exit surface 23 and enters the light guide channel 37 of the light guide sheet 30, and finally from the light guide sheet The light-emitting surface 32 of 30 emits, so the image displayed by the pixels in the edge display area of the two adjacent display devices 10 is output by the image compensation element 20 and the light guide sheet 30, and due to the relative The edges of the light-emitting surfaces 32 of the two light guide sheets 30 of the adjacent display device 10 are connected and abutted together. Therefore, when the user views the display screen of the spliced display 100, the two adjacent ones cannot be seen. In the border area 113 adjacent to the display device 10, it is seen that the display images of the two adjacent display devices 10 are continuous, so that a borderless display effect can be achieved visually. The image compensation element 20 expands the image corresponding to the edge display area of the adjacent splicing place of two adjacent display devices 10 to above the non-display area of the splicing place, thereby shielding the non-display area, so that the two display devices 10 can Realizing seamless splicing (or splicing without black borders) in the two-dimensional direction greatly improves the display effect of the spliced display 100. Due to the use of the image compensation element 20 and the light guide sheet 30, the plurality of display devices 10 can be seamlessly spliced in a two-dimensional direction, and the display effect is better.

The spliced display 100 of this embodiment can be applied to a TV wall or a large outdoor signage.

For the second embodiment, please refer to FIGS. 4 and 5. The spliced display 200 of the second embodiment is basically the same as that of the first embodiment. It includes the same two display devices 10, and the adjacent two display devices 10 are adjacent to each other. The same image compensation element 20 and light guide sheet 30 are provided. The structures of the image compensation element 20 and the light guide sheet 30 are similar to those of the first embodiment, and will not be repeated here. In this embodiment, the light guide sheet 30 is arranged on the light exit surface 23 of the image compensation element 20, and the extending direction of the plurality of light guide channels 37 of the light guide sheet 30 is perpendicular to the front surface 11 of the display device 10, and two adjacent ones The light emitting surface 32 of the light guide sheet 30 is directly connected.

The difference between this embodiment and the first embodiment is that the two display devices 10 are not arranged in a straight line. The two front faces 11 of two adjacent display devices 10 intersect to form an included angle less than 180 degrees.

In this embodiment, the adjacent image compensation elements 20 of two adjacent display devices 10 have a gap between them, instead of being directly contacted, and the light-emitting surfaces 23 of the two image compensation elements 20 are not connected. If the light guide sheet 30 is not provided, the user will find that the picture is disconnected and discontinuous when viewed from the front side 11. With the setting of the light guide sheet 30, the light emitting surfaces 32 of the two light guide sheets 30 are directly Connect, so the user will find that the picture is continuous when viewing from the front side 11.

It can be understood that the number of display devices 10 included in the spliced display 200 is not limited to two, as long as it is greater than or equal to two.

In this embodiment, two adjacent display devices 10 are arranged at intervals, and the two frame regions 113 of the two display devices 10 are arranged adjacently and at intervals. In other embodiments, the two adjacent display devices 10 may also be arranged in contact, and the frame regions 113 of the two adjacent display devices are in contact with each other.

The image compensation element 20 and the light guide sheet 30 can be formed by cutting a light guide fiber block (not shown), wherein the light guide fiber block includes a plurality of light guides that extend in a predetermined direction and are closely arranged in an array. Fiber (not shown).

It is understandable that the extension direction of the light guide channel of the image compensation element 20 in the above two embodiments is linear extension, but it is not limited to direct extension, and it can also be set as non-linear extension (curved extension).

The display device 10 in the foregoing embodiment may be conventionally used in the field, such as a liquid crystal display device, an organic light emitting diode display device, a micro light emitting diode display device, and the like.

The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. The up, down, left and right directions shown in the figure are only for ease of understanding. Although the present invention has been described in detail with reference to the preferred embodiments, the technical field An ordinary person of should understand that the technical solution of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solution of the present invention.

100, 200: spliced display 10: Display device 11: positive 13: back 111: display area 113: Border Area 20: Image compensation components 21, 31: light incident surface 23, 32: Glossy surface 25: Connection surface 30: Light guide sheet 33: The first connection surface 34: second connecting surface 27, 37: light guide channel

FIG. 1 is a schematic diagram of a spliced display according to the first embodiment of the present invention.

FIG. 2 is a schematic front view of the spliced display of FIG. 1.

Fig. 3 is a partial enlarged schematic diagram of Fig. 1.

4 is a schematic diagram of a spliced display according to a second embodiment of the invention.

Fig. 5 is a partial enlarged schematic diagram of Fig. 4.

10: Display device

11: positive

13: back

111: display area

113: Border Area

20: Image compensation components

21, 31: light incident surface

23, 32: Glossy surface

25: Connection surface

30: Light guide sheet

33: The first connection surface

34: second connecting surface

27, 37: light guide channel

Claims (12)

A spliced display, which is improved by comprising: at least two display devices arranged in sequence, each display device having a front side viewed by a user, the front side including a display area and a frame area located outside the display area; Two image compensation elements are arranged adjacent to each two adjacent display devices, and each image compensation element is correspondingly arranged on the front of one display device; the image compensation element includes a light-incident surface covering the display area , The light-emitting surface connecting the light-incident surface and the connecting surface connecting the light-incident surface and the light-emitting surface; the image compensation element includes a plurality of light guide channels, and the light guide paths of the plurality of light guide channels are mutually Are independent and extend along the light incident surface in the direction of the light exit surface; a light guide sheet is arranged on the light exit surface of each image compensation element, and the light guide sheet includes a plurality of light guide channels with independent light guide paths. The light guide channel of the light sheet and the light guide channel of the image compensation element are mutually conductive; the extension direction of the light guide channel of the light guide sheet is perpendicular to the front of the display device; the extension direction of the light guide channel of the light guide sheet Intersect with the extending direction of the light guide channel of the image compensation element to form an included angle. The spliced display according to claim 1, wherein: each light guide sheet includes a light-incident surface attached to the light-emitting surface of the image compensation element, a light-emitting surface parallel and opposite to the light-incident surface, adjacent The two light exit surfaces of the two light guide sheets arranged adjacent to the two display devices are connected to each other. The spliced display according to claim 2, wherein: the light guide sheet further comprises a first connecting surface and a second connecting surface connecting the light incident surface of the light guide sheet and the light exit surface of the light guide sheet, the first The connecting surface is opposite to the second connecting surface, and the extending direction of the light guide channel of the light guide sheet is parallel to the first connecting surface. The spliced display according to claim 3, wherein: the light guide sheet not only completely covers the light emitting surface of the image compensation element, but also extends to partially cover the display area of the front surface of the display device, and the second connecting surface covers the display area of the front surface. The spliced display according to claim 1, wherein: the light-emitting surface and the light-incident surface of the image compensation element intersect to form an acute angle. The spliced display according to claim 1, wherein: the area of each light guide channel of the image compensation element on the light exit surface is larger than the area of the light guide channel on the light entrance surface. The spliced display according to claim 1, wherein: the two front surfaces of two adjacent display devices are located on the same plane. The spliced display according to claim 1, wherein the two front faces of two adjacent display devices intersect to form an included angle less than 180 degrees. The spliced display according to claim 1, wherein: there is an interval between two image compensation elements adjacent to two adjacent display devices. The spliced display according to claim 1, wherein: the light guide channel of the image compensation element and the light guide channel of the light guide sheet are both light guide fibers. A spliced display is improved in that it comprises: at least two display devices arranged in sequence, each display device having a front side viewed by a user, the front side including a display area and a frame area located outside the display area; Two image compensation elements are arranged adjacent to each two adjacent display devices, and each image compensation element is correspondingly arranged in the display area on the front of a display device; each image compensation element is used to The covered display screen is exported and shifted toward another adjacent display device; a light guide sheet is arranged on the light emitting surface of each image compensation element, and the light guide sheet is used to compensate the corresponding image The light rays emitted by the element exit in a direction perpendicular to the front surface. The spliced display according to claim 11, wherein: the image compensation element includes a light incident surface covering the display area, a light output surface connected to the light incident surface, and a light incident surface connected to the light output surface The image compensation element includes a plurality of light guide channels, and the light guide paths of the plurality of light guide channels are independent of each other and extend along the light entrance surface in the direction of the light exit surface; the light guide sheet includes a light guide A plurality of light guide channels with independent paths, the light guide channel of the light guide sheet and the light guide channel of the image compensation element are mutually conductive; the extension direction of the light guide channel of the light guide sheet is perpendicular to the display device Each light guide sheet includes a light entrance surface attached to the light exit surface of the image compensation element, a light exit surface parallel to and opposite to the light entrance surface of the light guide sheet, and the phase of two adjacent display devices The two light-emitting surfaces of the two adjacent light guide sheets are connected to each other.

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