TWI691760B - Splicing 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

Splicing display

The invention relates to a splicing 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 display a large screen. Each display device usually has a display area in which plural pixels are arranged and a frame area surrounding the display area. However, when splicing with a plurality of display devices, there is a problem that the frame area (seam) of the plurality of display devices can be seen, which is not conducive to the presentation of the picture, and thus 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 splicing 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 outside the display area; each adjacent Two image compensation elements are provided adjacent to the two 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 and a connection A light exit surface of the light entrance surface, and a connection surface connecting the light entrance surface and the light exit surface; the image compensation element includes a plurality of A light guide channel, the light guide paths of the plurality of light guide channels are independent of each other and extend along the direction of the light incident surface toward the light exit surface; each light compensation surface of each image compensation element is provided with a light guide sheet, the light guide sheet A plurality of light guide channels independent of the light guide path are included, and the light guide channel of the light guide sheet and the light guide channel of the image compensation element are mutually conductive; the extending direction of the light guide channel of the light guide sheet is perpendicular to the The front side of the display device; the extending direction of the light guiding channel of the light guiding sheet and the extending direction of the light guiding channel of the image compensation element form an 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 outside the display area; each adjacent Two image compensation elements are provided adjacent to the two display devices, and each image compensation element is correspondingly provided in the front display area of one display device, and each image compensation element is used for a display screen to be covered by it Converged and offset toward the direction of another adjacent display device; a light guide sheet is provided on the light emitting surface of each image compensation element, and the light guide sheet is used for light emitted from the corresponding image compensation element Converge in a direction perpendicular to the front.

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 to display a portion of the front surface covered by the image compensation element. It is shifted out and toward another adjacent display device, so that the display screens of two adjacent display devices form a continuous screen.

100, 200: spliced display

10: display device

11: Positive

13: back

111: display area

113: border area

20: Image compensation element

21, 31: entrance surface

23, 32: light emitting surface

25: connection surface

30: Light guide sheet

33: the first connection surface

34: Second connection surface

27, 37: light guide channel

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

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

FIG. 3 is a partially 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 partially enlarged schematic diagram of FIG. 4.

The drawings show embodiments of the present invention. The present invention can be implemented in many different forms, and should not be construed as being limited to the embodiments described herein. On the contrary, these examples are provided to make the present invention more comprehensive and complete disclosure, and to make those skilled in the art more fully understand the scope of the present invention. For clarity, the dimensions of the layers and areas have been enlarged in the figure.

First embodiment

Please refer 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 line. Each display device 10 includes a front surface 11 and a rear surface 13 opposite to the front surface 11. The front surface 11 is a surface that the user views/contacts. The front surface 11 defines a display area 111 for displaying a picture and a frame area 113 outside the display area 111 where no picture is displayed. In this embodiment, the bezel area 113 is located outside the display area 111. For example, as shown in FIG. 2, the bezel area 113 surrounds the display area 111. The two front surfaces 11 of two adjacent display devices 10 are located substantially 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 are in contact with each other.

As shown in FIG. 1, in order to allow the user to view the display screen of the spliced display 100, the continuous display can be seen without being affected by the border area 113 of any two adjacent display devices 10 near the splicing location Picture (visual effect without border), each of the display device 10 The front surface 11 is provided with at least one image compensation element 20 and at least one light guide sheet 30, so that the display screen presented by the portion of the front surface 11 covered by the image compensation element 20 can be obtained by the image compensation element 20 and the light guide sheet 30 Exporting, the display screens of two adjacent display devices 10 are connected to form a continuous (non-disconnected) screen. The “splicing point” described herein refers to an area where any two adjacent display devices 10 are adjacent to each other.

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 where the display area 111 is not covered by the image compensation element 20 is defined as the main display area, and the area where the display area 111 is 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 and a triangular cross section. The image compensation element 20 includes a light incident surface 21, a light exit surface 23, and a connection surface 25 connecting the light incident surface 21 and the light exit surface 23. The light incident surface 21, the light exit surface 23, and the connection surface 25 are respectively three surfaces of a triangular prism. 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 position is aligned with the edge of the frame area 113 near the display area 111 to avoid The 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 connection 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 meet. 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 along the light entrance surface 21 toward the light exit surface 23. The complex light guide channels 27 are connected in sequence to form the image compensation element 20. In this embodiment, the extending direction of the plurality of light guide channels 27 is substantially the same and presents Array arrangement. 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 Bevel. Each image compensation element 20 is used for taking out the display screen covered by it and shifting it toward the direction of another adjacent display device 10.

Referring 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 they also include a plurality of light guide channels 37 with mutually 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 a light guide channel 27 of the image compensation element 20) . The extending direction of the light guide channel 37 of the light guide sheet 30 and the extending direction of the light guide channel 27 of the image compensation element 20 form an angle.

The light-emitting angle of the image compensation element 20 is relatively biased toward the joint of two adjacent display devices 10, and the light guide sheet 30 can guide the direction of the optical axis to be perpendicular to the front surface 11 of the display device 10, thus making the spliced display The overall light output direction of 100 is more uniform, and at the same time, the light guide sheet 30 can also solve the problem of uneven brightness of the corresponding area of the image compensation element 20, and the user will feel that the brightness of the image compensation element 20 is uniform .

The light guide sheet 30 includes a light incident 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 incident surface 31, and connected between the light incident surface 31 and the light exit surface 32的第一连接面33和第二连接面34。 The first connection surface 33 and the second connection surface 34. In this embodiment, the light guide sheet 30 has a trapezoidal plan view. 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 connection surface 33. The two first connection surfaces 33 of two adjacent light guide sheets 30 directly contact and stick together.

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 Figure 2, the first 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 exit surface 23 of the image compensation element 20 and does not extend to partially cover the display area 111 of the front surface 11; at this time, the second connection surface 34 is not attached to the front surface 11 Display area 111.

Referring to FIG. 3, the two light exit surfaces 32 of the two light guide sheets 30 disposed adjacent to the two adjacent display devices 10 are connected/stitched to each other.

It can be understood that each light guide channel 27 and each light guide channel 37 are a light guide fiber. In this embodiment, the light guide 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, and the user can view the screen image of the main display area; The light from 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 is emitted, so the image displayed by the pixels of the edge display area of two adjacent display devices 10 is output by the image compensation element 20 and the light guide sheet 30, and due to The edges of the light exit surfaces 32 of the two light guide sheets 30 of the adjacent display device 10 are connected to each other, so when the user views the display screen of the spliced display 100, the two adjacent ones cannot be seen The bezel area 113 adjacent to the display device 10 is to see that the display images of the two adjacent display devices 10 are continuous, so that a display effect without a bezel can be achieved visually. The image compensation element 20 expands the image corresponding to the edge display area of the adjacent two display devices 10 adjacent to the splicing area above the non-display area of the splicing area, thereby blocking the non-display area, so that the two display devices 10 can The seamless splicing (or no black border splicing) is realized in the two-dimensional direction, which greatly improves the display effect of the splicing display 100. Since the image compensation element 20 and the light guide sheet 30 are used, the complex display device 10 can realize seamless splicing 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 outdoor large-scale billboard.

Second embodiment

4 and 5, the spliced display 200 of the second embodiment is basically the same as the first embodiment, and includes the same two display devices 10, and the adjacent two display devices 10 are provided with the same The image compensation element 20 and the light guide sheet 30. 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 disposed 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 The light exit surface 32 of the light guide sheet 30 is directly connected.

This embodiment differs from the first embodiment in that the two display devices 10 are not arranged in line. The two front surfaces 11 of two adjacent display devices 10 intersect at an angle of less than 180 degrees.

In this embodiment, the adjacent image compensation elements 20 of the two adjacent display devices 10 have an interval between them, rather than being arranged in direct contact, and the light exit 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 screen is broken and discontinuous when viewed from the front side 11. With the setting of the light guide sheet 30, the light exit surfaces 32 of the two light guide sheets 30 are directly Connected, so the user will find the picture is continuous when viewing from the front 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 two frame regions 113 of the two display devices 10 are adjacent and 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 are in contact with each other.

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

It can be understood that the extension directions of the light guide channels of the image compensation element 20 in the above two embodiments are all linear extensions, but are not limited to direct extensions, and may also be set to non-linear extensions (curved extensions).

The display device 10 in the above embodiments may be conventionally used in the art, for example, 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 but not to limit them. The up, down, left, and right directions appearing in the illustrations are only for easy understanding, although the present invention has been described in detail with reference to the preferred embodiments, and belongs to the technical field. Those of ordinary skill should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention.

10: display device

11: Positive

13: back

111: display area

113: border area

20: Image compensation element

21, 31: entrance surface

23, 32: light emitting surface

25: connection surface

30: Light guide sheet

33: the first connection surface

34: Second connection surface

27, 37: light guide channel

Claims (10)

A spliced display, the improvement of which includes: at least two display devices arranged in sequence, each of the display devices having a front side viewed by a user, the front side including a display area and a frame outside the display area Area; two image compensation elements are provided adjacent to each adjacent two display devices, and each image compensation element is correspondingly disposed on the front of one display device; the image compensation element includes covering the A light entrance surface of the display area, a light exit surface connecting the light entrance surface, and a connection surface connecting the light entrance surface and the light exit surface; the image compensation element includes a plurality of light guide channels, the plurality of light guides The light guide paths of the channels are independent of each other and extend along the direction of the light incident surface facing the light exit surface; a light guide sheet is provided on the light exit surface of each image compensation element, and the light guide sheet includes light guide paths that are independent of each other A plurality of light guide channels, the light guide channel of the light guide sheet and the light guide channel of the image compensation element are mutually connected; the extending direction of the light guide channel of the light guide sheet is perpendicular to the front of the display device; The extending direction of the light guiding channel of the light guiding sheet crosses the extending direction of the light guiding channel of the image compensating element to form an angle; each of the light guiding sheets includes a light emitting surface attached to the image compensating element The light incident surface on the top, the light exit surface parallel to and opposite to the light incident surface, and the two light exit surfaces of the two light guide sheets disposed adjacent to the two adjacent display devices are connected to each other. The spliced display according to claim 1, wherein the light guide sheet further includes a first connection surface and a second connection connecting the light incident surface of the light guide sheet and the light exit surface of the light guide sheet The first connection surface is opposite to the second connection surface, and the extending direction of the light guide channel of the light guide sheet is parallel to the first connection surface. The spliced display according to claim 2, wherein the light guide sheet not only completely covers the light exit surface of the image compensation element but also extends to partially cover the front display area of the display device, and the second connection surface Cover the front display area. The spliced display according to claim 1, wherein: the light exit surface of the image compensation element 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 located on the light exit surface is larger than the area of the light guide channel on the light incident surface. The spliced display according to claim 1, wherein the two front faces of the two adjacent display devices are located on the same plane. The spliced display according to claim 1, wherein the two front faces of the two adjacent display devices intersect at an angle of less than 180 degrees. The spliced display according to claim 1, wherein the two image compensation elements adjacent to the two adjacent display devices have an interval therebetween. 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 includes: 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 provided adjacent to each adjacent two display devices, and each image compensation element is correspondingly provided in a display area on the front of one display device; each image compensation element is used The display screen covered by it is converged and shifted toward the direction of another adjacent display device; a light guide sheet is provided on the light exit surface of each image compensation element, and the light guide sheet Light rays exiting from the corresponding image compensation element converge in a direction perpendicular to the front surface; The image compensation element includes a light incident surface covering the display area, a light exit surface connected to the light incident surface, and a connection surface connecting the light incident surface and the light exit surface; the image compensation element includes A plurality of light guide channels, the light guide paths of the plurality of light guide channels are independent of each other and extend along the direction of the incident light surface toward the light exit surface; the light guide sheet includes a plurality of light guide channels with mutually independent light guide paths. The light guide channel of the light guide sheet and the light guide channel of the image compensation element are mutually connected; the extending direction of the light guide channel of the light guide sheet is perpendicular to the front of the display device; each light guide sheet includes A light incident surface attached to the light exit surface of the image compensation element, a light exit surface parallel to and opposite to the light incident surface of the light guide sheet, the two adjacent display devices The two light emitting surfaces of each light guide sheet are connected to each other.

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