阅读说明：本技术 光学拼接结构及其制作方法和拼接显示装置 (Optical splicing structure, manufacturing method thereof and splicing display device ) 是由 万业 康报虹 于 2021-10-29 设计创作，主要内容包括：本发明公开一种光学拼接结构及其制作方法和拼接显示装置,所述光学拼接结构设于两显示面板的拼接处,所述光学拼接结构包括塑封体和光纤束,所述塑封体包括呈相对设置的入射端和出光端；所述光纤束包括有多个光纤线,多个所述光纤线分布于所述塑封体内；多个所述光纤线在所述入射端至所述出光端的延伸方向上延伸,并在垂直于所述入射端至所述出光端的方向上排布。本发明技术方案的光学拼接结构可实现画面传输,改善拼接显示装置的拼接处的黑边与凹陷问题,实现类无缝拼接效果。(The invention discloses an optical splicing structure, a manufacturing method thereof and a splicing display device, wherein the optical splicing structure is arranged at the splicing position of two display panels and comprises a plastic packaging body and an optical fiber bundle, and the plastic packaging body comprises an incident end and a light-emitting end which are oppositely arranged; the optical fiber bundle comprises a plurality of optical fiber wires which are distributed in the plastic package body; the plurality of optical fiber lines extend in the extending direction from the incident end to the light emitting end and are arranged in the direction perpendicular to the direction from the incident end to the light emitting end. The optical splicing structure of the technical scheme of the invention can realize picture transmission, improve the problems of black edges and depressions at the splicing part of the splicing display device and realize the effect of quasi-seamless splicing.)

1. The utility model provides an optics mosaic structure, is applied to tiled display device, tiled display device includes two at least display panel, optics mosaic structure locates two display panel's concatenation department, its characterized in that, optics mosaic structure includes:

the plastic package body comprises an incident end and a light-emitting end which are oppositely arranged; and

the optical fiber bundle comprises a plurality of optical fiber wires, and the optical fiber wires are distributed in the plastic package body;

the plurality of optical fiber lines extend in the extending direction from the incident end to the light emitting end and are arranged in the direction perpendicular to the direction from the incident end to the light emitting end.

2. The optical mosaic structure of claim 1, wherein said plastic encapsulated body comprises a main body portion and opaque particles impregnated within said main body portion.

3. The optical splice structure of claim 2 wherein the optical fiber wire is made of glass fiber or organic fiber;

and/or the main body part is made of acrylonitrile-butadiene-styrene plastic, ultraviolet curing ink, polymethyl methacrylate or polycarbonate;

and/or the opaque particles are made of carbon black.

4. The optical splicing structure of any one of claims 1 to 3 wherein said fiber optic lines are arranged in a curve in an extending direction, wherein an end of said fiber optic lines at said incident end is perpendicular to an outer surface of said incident end, and an end of said fiber optic lines at said light exit end is perpendicular to a surface of said light exit end.

5. The optical splice structure of claim 4 wherein the entrance end includes an entrance portion and a fixed portion;

the two incidence parts are arranged on two sides of the fixing part, and each incidence part is arranged in a concave arc surface;

or the fixing part and the incident part are arranged in the direction from the light emitting end to the incident end, the fixing part is provided with two fixing grooves which are deviated from each other, the connecting line of the two fixing grooves is perpendicular to the direction from the light emitting end to the incident end, and the surface of the incident part deviated from the fixing part is a plane.

6. The optical splice structure of claim 5 wherein the plurality of optical fiber lines are arranged symmetrically about a centerline in the direction of their arrangement.

7. The optical splice structure of any of claims 1-3 wherein the fiber optic strand comprises, in order from the inside to the outside, a core, a cladding, and a coating layer, the coating layer being an optically hydrophobic material.

8. A method for manufacturing an optical mosaic structure, wherein the optical mosaic structure is according to any one of claims 1-7, the method comprising the steps of:

suspending a plurality of optical fiber wires above a mold, and laying the optical fiber wires along the inner wall surface of the mold;

filling plastic package liquid in the mould and solidifying the plastic package liquid into a plastic package body;

and cutting and forming the optical splicing structure.

9. A tiled display arrangement comprising at least two display panels, and an optical tiled structure according to any of claims 1 to 7, wherein the optical tiled structure is located at a tiled location between two adjacent display panels, and the light-emitting end covers at least a non-display area of the two display panels.

10. The tiled display apparatus according to claim 9, further comprising a supporting component, wherein the supporting component is disposed on a surface of the display panel facing away from the light-emitting end, and the incident end is disposed between the two display panels and connected to the supporting component.

Technical Field

The invention relates to the technical field of splicing display, in particular to an optical splicing structure, a manufacturing method thereof and a splicing display device.

Background

At present, the splicing display screen industry is developed vigorously to realize larger-area display. It can be understood that the concatenation screen is formed through the physics concatenation by two at least display screens, because every display screen is all independent, has own independent encapsulation, and narrower frame can only be accomplished to flat display panel's display device, is difficult to realize seamless concatenation, and the display device that can realize the cambered surface demonstration also is difficult to avoid the sunken and black border of seam.

Disclosure of Invention

The invention mainly aims to provide an optical splicing structure, which realizes the picture display at the position by transmitting the display light of a display panel to a joint gap of the display panel and the optical splicing structure, and aims to solve the problems of depression and a black frame at the splicing position of the spliced display panel so as to realize seamless splicing.

In order to achieve the above object, the optical splicing structure provided by the present invention is applied to a splicing display device, the splicing display device includes at least two display panels, the optical splicing structure is disposed at a splicing position of the two display panels, and the optical splicing structure includes:

the plastic package body comprises an incident end and a light-emitting end which are oppositely arranged; and

the optical fiber bundle comprises a plurality of optical fiber wires, and the optical fiber wires are distributed in the plastic package body;

the plurality of optical fiber lines extend in the extending direction from the incident end to the light emitting end and are arranged in the direction perpendicular to the direction from the incident end to the light emitting end.

In an alternative embodiment, the plastic package body includes a main body portion and opaque particles filled in the main body portion.

In an optional embodiment, the optical fiber line is made of glass fiber or organic fiber;

and/or the main body part is made of at least one of acrylonitrile-butadiene-styrene plastic, ultraviolet curing ink, polymethyl methacrylate and polycarbonate;

and/or the opaque particles are made of carbon black.

In an optional embodiment, the optical fiber line is arranged in a curve in an extending direction, an end portion of the optical fiber line at the incident end is perpendicular to an outer surface of the incident end, and an end portion of the optical fiber line at the light exit end is perpendicular to a surface of the light exit end.

In an optional embodiment, the incident end includes an incident portion and a fixing portion;

the two incidence parts are arranged on two sides of the fixing part, and each incidence part is arranged in a concave arc surface;

or the fixing part and the incident part are arranged in the direction from the light emitting end to the incident end, the fixing part is provided with two fixing grooves which are deviated from each other, the connecting line of the two fixing grooves is perpendicular to the direction from the light emitting end to the incident end, and the surface of the incident part deviated from the fixing part is a plane.

In an alternative embodiment, the plurality of optical fiber lines are arranged symmetrically with respect to a center line in the arrangement direction.

In an optional embodiment, the optical fiber line comprises a fiber core, a cladding and a coating layer which are sequentially arranged from inside to outside, and the coating layer is made of a light and sparse material.

The invention also provides a manufacturing method of the optical splicing structure, wherein the optical splicing structure is any one of the optical splicing structures, and the manufacturing method comprises the following steps:

suspending a plurality of optical fiber wires above a mold, and laying the optical fiber wires along the inner wall surface of the mold;

filling plastic package liquid in the mould and solidifying the plastic package liquid into a plastic package body;

and cutting and forming the optical splicing structure.

The invention also provides a spliced display device which comprises at least two display panels and the optical splicing structure, wherein the optical splicing structure is positioned at the splicing position between two adjacent display panels, and the light outlet end at least covers the non-display areas of the two display panels.

In an optional embodiment, the tiled display device further includes a supporting component, the supporting component is disposed on a surface of the display panel away from the light-emitting end, and the incident end is disposed between the two display panels and is connected and fixed with the supporting component.

The optical splicing structure comprises a plastic package body and an optical fiber bundle, wherein a plurality of optical fiber wires of the optical fiber bundle are distributed in the plastic package body, and the plastic package body provides a fixed foundation so that the optical fiber wires have a specific extending direction, namely a specific optical route. The plurality of optical fiber lines extend in the extending direction from the incident end to the light-emitting end, can receive the light of the incident end and transmit the light to the light-emitting end, and are distributed in the direction perpendicular to the incident end to the light-emitting end, namely, the transverse connecting line directions of the two display panels are distributed, so that the light-emitting end also forms a certain display picture, the light-emitting end can cover the black frame or the concave part at the joint of the two display panels, and the effect of similar seamless splicing is realized. And the loss of the optical fiber line on optical transmission is small, so that the display picture of the light-emitting end can be effectively ensured, and the seamless joint effect is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a first top view of an optical mosaic according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a second top view of an optical mosaic according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;

FIG. 5 is a schematic diagram of an optical fiber line in an optical splicing structure according to an embodiment of the invention;

FIG. 6 is a flowchart illustrating a method for fabricating an optical mosaic structure according to a second embodiment of the present invention;

FIG. 7 is a schematic structural diagram of the optical splice structure in the state of step S1 in the flowchart of FIG. 6;

fig. 8 is a schematic structural diagram of the optical splicing structure in the flowchart of fig. 6 at the state of step S2;

fig. 9 is a schematic structural diagram of the optical splicing structure in the flowchart shown in fig. 6 in a complementary state after step S2;

fig. 10 is a first top view of a third tiled display according to an embodiment of the invention;

FIG. 11 is a cross-sectional view taken along line C-C of FIG. 10;

fig. 12 is a second top view of a triple-tiled display according to an embodiment of the present invention;

fig. 13 is a cross-sectional view taken along line D-D of fig. 12.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Tiled display device	1315	Coating layer
10	Optical splicing structure	30	Display panel
				11	Plastic package body	31	Display area
111	Light emitting end	33	Black frame
				113	Incident end	50	Support assembly
1131	Incident part	51	Support piece
				1133	Fixing part	70	Backlight module
1133a	Fixing groove	90	Auxiliary screen
				13	Optical fiber bundle	91	Sub display panel
131	Optical fiber line	93	Secondary backlight module
				1311	Fiber core	200	Die set
1313	Cladding layer

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Example one

The invention provides an optical splicing structure, which is applied to a splicing display device, wherein the splicing display device comprises at least two display panels, and the optical splicing structure is arranged at the splicing position of the two display panels so as to realize the seamless connection of the two display panels.

Referring to fig. 1 to 4, in two embodiments of the present general inventive concept, the optical splicing structure 10 includes a plastic package body 11 and an optical fiber bundle 13, where the plastic package body 11 includes an incident end 113 and an exit end 111 that are oppositely disposed; the optical fiber bundle 13 includes a plurality of optical fiber lines 131, and the plurality of optical fiber lines 131 are distributed in the plastic package body 11; the plurality of optical fiber lines 131 extend in the extending direction from the incident end 113 to the light emitting end 111, and are arranged in the direction perpendicular to the direction from the incident end 113 to the light emitting end 111.

In this embodiment, the optical splicing structure 10 is used for splicing two Display panels 30, and can achieve a certain optical transmission function, where the Display panel 30 may be a Display panel 30 of a rigid Liquid Crystal Display (LCD) device, or a Display panel 30 of a flexible Organic Light-Emitting Display (OLED).

Specifically, the optical splice structure 10 includes a plastic package body 11 and an optical fiber bundle 13 disposed in the plastic package body 11, and it can be understood that the plastic package body 11 is a base and plays a role of fixing the optical fiber bundle 13. The plastic package body 11 needs to fill up the gap between the two display panels 30, so the plastic package body 11 is substantially in a long strip shape, extends along the extending direction of the butt joint side of the two display panels 30, and transversely extends along the width of the gap between the two display panels 30; meanwhile, the display panel 30 has a certain thickness in the thickness direction for facilitating the fixing, and the thickness direction of the plastic package body 11 is also the extending direction from the incident end 113 to the light emitting end 111. The optical fiber bundle 13 includes a plurality of optical fiber lines 131, and the plurality of optical fiber lines 131 may be distributed side by side on the lateral surface of the plastic package body 11, or may be distributed at intervals, which is not limited herein. Each optical fiber line 131 extends from the incident end 113 to the light emitting end 111, so as to realize the transmission of light, where the light emitting end 111 is also the same as the light emitting side of the display panel 30, and is used for facing the user side to realize the display of the picture.

The optical splicing structure 10 of the technical scheme of the invention comprises a plastic package body 11 and an optical fiber bundle 13, wherein a plurality of optical fiber lines 131 of the optical fiber bundle 13 are distributed in the plastic package body 11, and the plastic package body 11 provides a fixed foundation so that the optical fiber lines 131 have a specific extending direction, namely a specific optical route. The plurality of optical fiber lines 131 extend in the extending direction from the incident end 113 to the light emitting end 111, can receive the light from the incident end 113 and transmit the light to the light emitting end 111, and are distributed in the direction perpendicular to the direction from the incident end 113 to the light emitting end 111, that is, in the transverse connection direction of the two display panels 30, so that the light emitting end 111 also forms a certain display picture, and the light emitting end 111 can cover the black border 33 or the concave part at the joint of the two display panels 30, thereby achieving the effect similar to seamless splicing. And the loss of the optical fiber 131 in optical transmission is small, so that the display picture of the light-emitting end 111 can be effectively ensured, and the seamless joint effect is improved.

In order to better fulfill the function of the optical fiber 131, in an alternative embodiment, the plastic package body 11 includes a main body portion and opaque particles filled in the main body portion.

In this embodiment, the main body is generally made of plastic for plastic sealing, i.e., is in a liquid state before plastic sealing, and is cured under special conditions when being loaded into the mold 200, so as to fix the optical fiber bundle 13 and ensure a fixed optical path of the optical fiber 131. Here, the main body portion may be made of at least one of acrylonitrile-butadiene-styrene (ABS), ultraviolet curable ink (UV ink), polymethyl methacrylate (PMMA) and Polycarbonate (PC), and the above materials are optically hydrophobic media with respect to the optical fiber line 131, and may effectively reduce refraction of light in the above materials, thereby reducing light emission at other angles and ensuring transmission stability of light along the optical fiber line 131. Meanwhile, the main body part is made of a material with stable performance, and can well protect the optical fiber 131. The main body portion is doped with opaque particles, and the opaque particles can be made of carbon black, so that the overall light transmittance of the plastic package body 11 is low, and light leakage is further reduced. Of course, in other embodiments, the opaque particles may be made of black metal particles.

In order to ensure the light transmission performance of the optical fiber line 131, in an optional embodiment, the optical fiber line 131 is made of glass fiber or organic fiber, the glass fiber has good high temperature resistance, tensile strength and corrosion resistance, the structural stability and the service life of the optical fiber line 131 are effectively improved, and the light transmission effect of the glass fiber is good. The organic fiber has good flexibility, and the service performance of the optical fiber 131 can be improved. In order to further improve the structural performance of the optical fiber line 131, please refer to fig. 5, optionally, the optical fiber line 131 includes a fiber core 1311, a cladding 1313, and a coating 1315, which are sequentially disposed from inside to outside, and the coating 1315 is an optically hydrophobic material. Here, the core 1311 is a high refractive index glass fiber and plays a main role in light transmission, and the cladding 1313 is made of low refractive index silica glass and plays a certain role in protection and fixing molding of the glass fiber. The coating layer 1315 is made of a light and light-scattering material, i.e., the above-mentioned various plastics or resins, has high structural strength and good corrosion resistance, and can effectively improve the strength and structural stability of the optical fiber line 131. Meanwhile, the influence of the plastic package body 11 on the fiber core 1311 can also be avoided.

With reference to fig. 2 and fig. 4, in an alternative embodiment, the optical fiber line 131 is disposed in a curve in the extending direction, the end of the optical fiber line 131 at the incident end 113 is perpendicular to the outer surface of the incident end 113, and the end of the optical fiber line 131 at the light exit end 111 is perpendicular to the surface of the light exit end 111.

In this embodiment, in order to make the light-emitting end 111 better cover the gap between the two display panels 30, the area of the light-emitting end 111 is generally larger than the gap between the two display panels 30, and in order to fix the plastic package body 11, the structure penetrating between the two display panels 30 needs to be adapted to the gap between the two display panels, so that the width of the plastic package body 11 from the incident end 113 to the light-emitting end 111 is obviously changed. Meanwhile, in order to ensure the light transmission performance of the optical fiber line 131, one end of the optical fiber line is perpendicular to the outer surface of the incident end 113, so that the display light is better received, the light is easier to enter the optical fiber line 131 for transmission, and the transmission effect is improved. Similarly, the other end of the optical fiber 131 is perpendicular to the outer surface of the light-emitting end 111, so that the light is smoothly emitted, the display effect is improved, the seamless connection with the pictures of the display areas 31 of the two display panels 30 is ensured, and the visual effect is improved. In order to ensure that the two ends of the optical fiber line 131 are perpendicular to the respective end surfaces, and the widths of the two opposite end surfaces are not consistent, the optical fiber line 131 is arranged in a curve in the extending direction, for example, an arc line or a parabola line, so as to ensure the incidence and emission efficiency of light rays at the end portions, and meanwhile, the transmission efficiency is improved in the smooth extending direction, and the display effect is ensured.

Referring to fig. 2 and fig. 4, in an alternative embodiment, the incident end 113 includes an incident portion 1131 and a fixing portion 1133;

the number of the incident portions 1131 is two, the two incident portions 1131 are disposed on two sides of the fixing portion 1133, and each incident portion 1131 is disposed in a concave arc surface;

or, the fixing portion 1133 and the incident portion 1131 are arranged in a direction from the light emitting end 111 to the incident end 113, the fixing portion 1133 is provided with two fixing grooves 1133a which are arranged in a deviating manner, a connecting line of the two fixing grooves 1133a is perpendicular to the direction from the light emitting end 111 to the incident end 113, and a surface of the incident portion 1131 deviating from the fixing portion 1133 is a plane.

As can be understood, the light-emitting end 111 is used for emitting light, so as to realize image display. The incident end 113 needs to be fixed to two display devices while receiving light, and thus includes an incident portion 1131 and a fixing portion 1133. In this embodiment, the incident end 113 has a different structure for splicing different display panels 30.

In fig. 2, for example, when splicing the flexible OLEDs, the edges of the two flexible display panels 30 may be bent to form a curved structure, so as to hide a part of the black bezel 33 at the junction of the two. Thus, there is a partial display region 31 between the two flexible display panels 30, and the light rays in the display region 31 are directly used as the incident light rays of the incident portion 1131 of the optical splicing structure 10, so that the structure can be effectively compact, and the distance between the two can be reduced. Therefore, the two incidence parts 1131 are arranged, the fixing part 1133 is arranged in the middle, the two incidence parts 1131 are respectively arranged on two sides of the fixing part 1133 and are correspondingly attached to the display areas 31 of the two display panels 30, and the display areas 31 at the positions of the display panels 30 are arranged in a convex arc shape, and correspondingly, the incidence parts 1131 are arranged in a concave arc shape, so that the seamless joint effect is realized. In other embodiments, the surface of the incident portion 1131 may have other shapes, and may match with the surface of the display panel 30. Here, the fixing portion 1133 corresponds to the positions of the two black frames 33, and can be directly fixed to the black frames 33. Of course, to further improve the stability and reduce the influence on the black frames 33, two black frames 33 are separated by a partial gap, and the fixing portion 1133 extends for a distance toward the direction departing from the light emitting end 111, i.e., extends toward the back direction of the display panel 30, so as to be correspondingly connected with the components of the fixed display panel 30, thereby ensuring a stable installation structure. The connection mode here may be an adhesive connection, a snap connection, etc., and is not limited herein.

In fig. 4, when the rigid LCD is spliced, because the two adjacent rigid display panels 30 can only be spliced as a planar structure, and the black frames 33 of the two rigid display panels are butted, when the optical splicing structure 10 is disposed between the two rigid display panels 30, no incident light can be received by the incident end 113 at the spliced position. Meanwhile, since the LCD also needs its own backlight structure, a corresponding bar-shaped sub-screen 90 is disposed on the back of the joint of the two display panels 30 as a light source of the optical splicing structure 10. Thus, the incident end 113 of the optical splicing structure 10 includes the planar incident portion 1131, and the incident portion 1131 extends into the back surfaces of the two display panels 30 to be attached to the sub-screen 90, so as to ensure a better light receiving effect. Meanwhile, for the connection with the fixing component of the display panel 30, the fixing portion 1133 is located between the incident portion 1131 and the light emitting end 111, and is provided with fixing grooves 1133a, openings of the two fixing grooves 1133a are disposed away from each other, and an opening of each fixing groove 1133a faces a side edge of one display panel 30, and is bonded or connected with the side edge of the display panel 30 in a snap-fit manner, and the like, which is not limited herein. The opening of the fixing groove 1133a is rectangular and is matched with the side of the display panel 30, so that the structure is more compact, and the width of the splicing position is reduced.

Referring to fig. 1 and fig. 2 again, in an alternative embodiment, a plurality of the optical fiber lines 131 are symmetrically arranged with a center line in the arrangement direction as an axis.

In this embodiment, in order to ensure the uniformity of the image display, the middle portions of the plurality of optical fiber lines 131 in the arrangement direction are symmetrically arranged as axes, that is, the central lines in the connection direction of the two display panels 30 are axes, so that the display of the light-emitting end 111 at the splicing position of the two display panels 30 is more uniform, the transition between the two display areas 31 is ensured, and the seamless joint effect is further improved.

Example two

Referring to fig. 6 to 9, the present invention further provides a method for manufacturing an optical mosaic structure, where the optical mosaic structure 10 is the optical mosaic structure 10 described above, and the method includes the following steps:

step S1: suspending a plurality of optical fiber wires 131 above a mold 200, and laying the optical fiber wires 131 along an inner wall surface of the mold 200;

step S2: filling plastic package liquid in the mold 200 and solidifying the plastic package liquid into a plastic package body 11;

step S3: and cutting and forming the optical splicing structure 10.

Referring to fig. 7, in this embodiment, the process in step S1 is called drop wire, when the optical fiber lines 131 are suspended above the mold 200, the optical fiber lines 131 will fall into the mold 200 vertically under the action of gravity, and in order to make the optical fiber lines 131 have a specific optical path, the inner wall surface of the mold 200 may be designed, for example, when the optical fiber lines 131 extend in an arc, the inner wall surface of the mold 200 is set to be an arc surface, so that the lower ends of the optical fiber lines 131 are bent to fit the inner wall surface, and the initial sizing action is completed. For another example, when the plurality of optical fiber lines 131 are symmetrically arranged in the arrangement direction thereof, the mold 200 has two arc surfaces symmetrically arranged to achieve a better display effect. Specifically, the mold 200 is rectangular, and the opposite two sides of the mold are provided with semi-circular concave grooves, when the plurality of optical fiber wires 131 hang down, half of the optical fiber wires 131 are bent along the groove wall of one concave groove in one direction, and the other half of the optical fiber wires 131 are bent along the groove wall of the other concave groove in the direction away from the concave groove, so as to form the initially-shaped optical fiber bundle 13 with a symmetrical structure.

With reference to fig. 8, the process in step S2 is referred to as filling, and plastic package liquid is filled into the mold 200 to surround the optical fiber lines 131, so that the optical fiber lines 131 can be spread sufficiently and can have a certain distance therebetween under the filling effect of the liquid, and thus the optical fiber lines 131 are arranged at intervals in the arrangement direction, the number of used materials of the optical fiber lines 131 is reduced, and cost control is facilitated. The material of the plastic package liquid is substantially the material of the plastic package body 11 of the above embodiment, that is, the main body portion doped with the opaque particles, and the material of the main body portion may be at least one of Acrylonitrile Butadiene Styrene (ABS), ultraviolet curable ink (UV ink), polymethyl methacrylate (PMMA), and Polycarbonate (PC). And then the plastic-sealed liquid is solidified into a solid plastic-sealed body 11, so that the optical fiber 131 is stably fixed to form a stable arc extension structure, and a better transmission effect is ensured. For example, when the mold liquid is UV ink, curing can be achieved by ultraviolet light irradiation.

Specifically, referring to fig. 9, when the OLED display device needs to be assembled, the fixing portions 1133 extend from the middle portions of the symmetrically disposed optical fiber bundles 13, so that in step S2, a second filling process is further performed, that is, after the original mold 200 is removed, the middle portion of the mold 200 is also filled with the plastic sealing liquid, so as to form the solid plastic sealing body 11.

Referring to fig. 2, finally, the solidified plastic package body 11 is cut into a desired shape and a size matching the desired shape by cutting in step S3. For example, the opposite side surfaces are cut into concave arc surfaces to form the incident portion 1131 to match the curved edge of the display panel 30 of the OLED. The fixing portion 1133 in the middle portion may be directly cut according to the size requirement, or may be formed with other materials by secondary molding, so as to lengthen the length of the fixing portion 1133, thereby facilitating the fixing. Finally, the cut structure forms an optical splicing structure 10 which is mainly used for splicing positions of flexible display devices such as OLED and the like to realize display pictures, so that the problems of grooves or black edges and the like at the splicing positions are solved, and seamless splicing is realized.

EXAMPLE III

Referring to fig. 10 to 13, the present invention further provides a tiled display device 100, where the tiled display device 100 includes at least two display panels 30 and the optical tiled structure 10 as described above, the optical tiled structure 10 is located at a tiled position between two adjacent display panels 30, and the light-emitting end 111 at least covers the non-display area 31 of two display panels 30. The optical splicing structure 10 in the splicing display device 100 in the present application is the optical splicing structure 10 according to any one of the above embodiments, so that the optical splicing structure has the beneficial effects of any one of the above embodiments, and details are not described herein.

In fig. 11, in the present embodiment, when the tiled display device 100 is an OLED tiled display device 100, the optical tiled structure 10 can be installed between two display panels 30 because the device does not need a backlight and the edges of the two display panels 30 are both arc surfaces. At this time, the light-emitting end 111 of the optical splicing structure 10 covers the edge positions of the two display panels 30, at least covers the non-display area 31 of the display panel 30, that is, the black frame 33, and the incident portion 1131 of the incident end 113 is attached to the display area 31 having the arc surface, so that the light of the display area 31 is correspondingly transmitted to the light-emitting end 111 corresponding to the non-display area 31. Optionally, in order to improve the splicing effect, the edge of the light-emitting end 111 is extended to the display area 31, and the size of the optional setting exceeding the black frame 33 is less than or equal to 8mm, for example, 7mm, 6mm and the like, so that the display picture of the light-emitting end 111 is effectively ensured, the smoothness of splicing is improved, and the seamless splicing effect is ensured.

When the width of the light-emitting end 111 is fixed, in order to improve the display effect, the thickness of the optical mosaic structure 10 may be increased, that is, the height of the light-emitting end 111 is flush with the light-emitting surface of the display panel 30, or higher than the light-emitting surface of the display panel 30, where the height of the light-emitting surface higher than the display panel 30 is not too high, and a size range smaller than or equal to 5mm may be selected, so that the optical mosaic structure 10 is not too abrupt on the mosaic display device 100 while ensuring the light effect, thereby reducing the cost, and improving the overall aesthetic property.

In FIG. 13, when the tiled display apparatus 100 is an LCD display apparatus, the tiled display apparatus 100 further includes a secondary screen 90, the secondary screen 90 providing a light source for the display for the optical tiled structure 10. Specifically, the light emitting end 111 of the optical splicing structure 10 is disposed above the black frames 33 of the two display panels 30, the fixing groove 1133a formed by the fixing portion 1133 is clamped at the side of each display panel 30, the sub-screen 90 is disposed at a side of the display panel 30 away from the light emitting surface, and the incident portion 1131 is attached to the surface of the sub-screen 90 to receive the emitted light and transmit the light to the light emitting end 111. Here, the sub-panel 90 includes a sub-backlight module 93 and a sub-display panel 91, and of course, the backlight module 70 is also disposed on the back of the two spliced display panels 30 to provide a light source for displaying a picture. The display frames of the sub-display panel 91 and the two display panels 30 to be spliced need to be controlled in a coordinated manner, so that smooth connection of the frames is ensured, and the display of the frames is not affected. The backlight module 70 includes a backlight source and a plurality of optical control elements stacked in sequence, and the optical control elements may be light guide plates, brightness enhancement films or diffusion films, so as to provide a uniform and stable light source for the display panel 30. Here, the backlight source may be disposed at a side of the optical adjustment component, that is, the backlight module 70 is a side-in type backlight module; the backlight source may be disposed below the optical adjustment component, that is, the backlight module 70 is a direct-type backlight module.

Referring to fig. 11 again, based on the first embodiment, in an optional embodiment, the tiled display device 100 further includes a supporting assembly 50, the supporting assembly 50 is disposed on a surface of the display panel 30 away from the light-emitting end 111, and the incident end 113 is disposed between the two display panels 30 and is connected and fixed with the supporting assembly 50.

It can be understood that, in order to protect the display panel 30 and fix the display panel 30, the tiled display apparatus 100 further includes a supporting component 50, and the supporting component 50 is disposed on a surface of the display panel 30 away from the light-emitting end 111, so as not to affect the display of the picture. When the tiled display apparatus 100 is an OLED, the incident end 113 passes through the joint of the two display panels 30 and is directly connected to the supporting member 50. Here, the supporting assembly 50 may include two supporting members 51, each supporting member 51 is correspondingly connected to one display panel 30, and the fixing portions 1133 are respectively connected to the two supporting members 51. The support member 51 may be bonded to the display panel 30 in such a manner that the light is not required to pass through, and the bonding member may be a transparent material such as liquid glue: resin glue or methanol glue, etc., also can be solid glue, facilitate the connection, and can reduce cost. The light-shielding material is black and black double-sided tape, black and white double-sided tape, or PET black double-sided tape. Meanwhile, the connection between the fixing portion 1133 and the supporting member 51 may also be an adhesive, or a plug-in connection, a snap-fit connection, etc., which is not limited herein. Of course, the supporting members 51 may also be an integrally formed structure, so as to facilitate the processing, and the fixing portion 1133 may be installed and fixed by forming a hole at a position corresponding to the fixing portion.

Referring to fig. 13, on the basis of the second embodiment, when the tiled display device 100 is an LCD, the supporting component 50 needs to fix the backlight module 70 in addition to the display panel 30, that is, the backlight module 70 is mounted on the supporting component 50, and the display panel 30 is located on the light-emitting side of the backlight module 70 and fixed on the supporting component 50. Of course, the sub-panel 90 for providing light source to the optical splicing structure 10 also needs to be provided with the supporting component 50, the supporting component 50 is connected to the back of the supporting component 50 of the display panel 30 to be spliced, and the sub-backlight module 93 and the sub-display panel 91 are installed, so as to provide light source for the incident end 113 penetrating through the gap between the two spliced display panels 30 and the two supporting components 50, and the specific structure can be set as required.

Due to the optical splicing structure 10, the splicing display device 100 in the technical scheme of the invention can effectively cover the black edges and the recesses at the splicing position when splicing the flexible display panel 30, and guides the light of the display area 31 of the display panel 30 to the light-emitting end 111 to realize the display of the picture, thereby realizing the effect similar to seamless connection. Of course, when the method is applied to a rigid LCD display device, the corresponding bar-shaped sub-screen 90 is matched.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.