Splicing display screen and splicing method

Abstract

The invention provides a spliced display screen and a splicing method, and relates to the technical field of display. At least two splicing alignment structures are arranged in two adjacent spliced display panels, and each splicing alignment structure comprises a collimated light beam emitter arranged on one display panel and a collimated light beam receiver arranged on the other display panel and aligned in position, so that on the basis of the collimation characteristic of collimated light beams, the splicing alignment structures are arranged on the two adjacent spliced display panels. According to the technical scheme, high-precision splicing of the spliced display screen in the horizontal direction and the vertical direction can be guaranteed, the problem of splicing dislocation of the spliced display screen is avoided, the display effect of the spliced display screen is improved, and therefore the good impression experience of a user is guaranteed.

Description

Technical Field

[0001] The present application relates to the field of display technology, and more specifically, to a spliced ​​display screen and a splicing method. Background Art

[0002] With the continuous development of display technology, users are paying more and more attention to the visual experience of display products, which promotes the development of display technology towards high-definition intelligence and integration. In particular, with the user's demand for larger screen size and high-definition intelligent display, in some display screen usage scenarios, in order to obtain a larger display range, it is necessary to splice multiple single display panels to form a larger spliced ​​display screen. However, the existing spliced ​​display screens have serious splicing misalignment, which affects the user's viewing experience. Summary of the invention

[0003] In view of this, the present application provides a splicing display screen and a splicing method, which effectively solve the technical problems existing in the prior art, improve the splicing accuracy of the splicing display screen, and improve the display effect of the splicing display screen, thereby ensuring a good viewing experience for users.

[0004] To achieve the above objectives, the technical solutions provided by this application are as follows:

[0005] A spliced ​​display screen, comprising:

[0006] At least two display panels, each of the display panels comprises at least two optical components, and the optical components are collimated light beam transmitters or collimated light beam receivers;

[0007] At least two splicing alignment structures are included in two adjacent spliced ​​display panels. The splicing alignment structure includes the collimated beam emitter located in one of the display panels, and a collimated beam receiver located in another of the display panels and aligned with the collimated beam emitter.

[0008] Optionally, the collimated beam transmitter is a laser transmitter, and the collimated beam receiver is a laser receiver.

[0009] Optionally, in two adjacent display panels that are spliced, at least two optical components are arranged at edges of the display panels close to a splicing boundary and along an extension direction of the splicing boundary.

[0010] Optionally, at an edge of the display panel close to the splicing boundary, a distance between at least one of the optical components and the remaining optical components is greater than a set distance.

[0011] Optionally, in the splicing alignment structure, a misalignment difference between the collimated light beam transmitter and the collimated light beam receiver in the first direction is not greater than 1% of a dot pitch of the display panel;

[0012] The first direction is parallel to the plane where the display panel is located, and the first direction is perpendicular to the collimated light beam emitted by the collimated light beam emitter.

[0013] Optionally, in the splicing alignment structure, a misalignment difference between the collimated light beam transmitter and the collimated light beam receiver in the second direction is within an allowable range;

[0014] The second direction is perpendicular to the plane where the display panel is located.

[0015] Optionally, the display panel includes:

[0016] A driving substrate, wherein a plurality of connecting electrodes are exposed on one side of the driving substrate;

[0017] A plurality of light-emitting elements, wherein the light-emitting elements are located on the driving substrate, and chip electrodes of the light-emitting elements are fixedly connected to the connecting electrodes;

[0018] The optical component and the light emitting element are located on the same side of the driving substrate.

[0019] Optionally, the spliced ​​display screen is a foldable display screen.

[0020] Based on the same inventive concept, the present application also provides a splicing method for splicing the above-mentioned spliced ​​display screens, wherein the splicing method comprises:

[0021] Placing all the display panels according to the splicing positions;

[0022] The optical component is turned on to fine-tune the position of the display panel, wherein, in the splicing alignment structure, the collimated beam receiver receives the collimated beam emitted by the collimated beam transmitter.

[0023] Optionally, the fine-tuning the position of the display panel by using the optical component includes:

[0024] Selecting one of the display panels as a reference display panel;

[0025] Turning on the optical components on the reference display panel and at least one of the display panels adjacent thereto to perform fine position adjustment;

[0026] Taking the display panel after position fine-tuning as the target display panel, turning on the optical components on the target display panel and at least one of the display panels adjacent thereto to perform position fine-tuning;

[0027] The above process is repeated until the positions of all the display panels are finely adjusted.

[0028] Compared with the prior art, the technical solution provided by this application has at least the following advantages:

[0029] The present application provides a spliced ​​display screen and a splicing method, wherein the spliced ​​display screen comprises: at least two display panels, each of the display panels comprises at least two optical components, and the optical components are collimated beam emitters or collimated beam receivers; at least two splicing alignment structures are included in two adjacent spliced ​​display panels, and the splicing alignment structure comprises the collimated beam emitter located in one of the display panels, and the collimated beam receiver located in the other display panel and aligned with the collimated beam emitter.

[0030] From the above content, it can be seen that the technical solution provided by the present application is to set at least two splicing alignment structures in two adjacent spliced ​​display panels, and each splicing alignment structure includes a collimated beam transmitter set on one display panel, and a position-aligned collimated beam receiver set on another display panel. Therefore, based on the collimation characteristics of the collimated beam, it is possible to ensure that the spliced ​​display screen can achieve high-precision splicing in both the horizontal and vertical directions, avoid the splicing misalignment problem of the spliced ​​display screen, improve the display effect of the spliced ​​display screen, and thus ensure a good viewing experience for users. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0032] Figure 1 A schematic diagram of the structure of a spliced ​​display screen provided in an embodiment of the present application;

[0033] Figure 2 A schematic diagram of the structure of another spliced ​​display screen provided in an embodiment of the present application;

[0034] Figure 3 A schematic diagram of the structure of another spliced ​​display screen provided in an embodiment of the present application;

[0035] Figure 4 for Figure 3 The cross-sectional view along the AA' direction;

[0036] Figure 5 A schematic diagram of the structure of a display panel provided in an embodiment of the present application;

[0037] Figure 6 A schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0038] Figure 7 A schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0039] Figure 8 A schematic diagram of the structure of another spliced ​​display screen provided in an embodiment of the present application;

[0040] Fig. 9 A schematic diagram of the structure of another spliced ​​display screen provided in an embodiment of the present application;

[0041] Fig.10 A schematic diagram of the structure of another spliced ​​display screen provided in an embodiment of the present application;

[0042] Fig.11 A schematic diagram of the structure of another spliced ​​display screen provided in an embodiment of the present application;

[0043] Fig.12 A flowchart of a splicing method provided in an embodiment of the present application;

[0044] Fig.13 A flowchart of another splicing method provided in an embodiment of the present application;

[0045] Fig.14 A schematic diagram of the structure of another spliced ​​display screen provided in an embodiment of the present application. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0047] As described in the background technology, with the continuous development of display technology, users pay more and more attention to the visual experience of display products, which promotes the development of display technology towards high-definition intelligence and integration. In particular, with the user's demand for larger screen size and high-definition intelligent display, in some display screen usage scenarios, in order to obtain a larger display range, it is necessary to splice multiple single display panels to form a larger spliced ​​display screen. However, the existing spliced ​​display screens have serious splicing misalignment, which affects the user's viewing experience.

[0048] Based on this, the embodiments of the present application provide a splicing display screen and a splicing method, which effectively solve the technical problems existing in the prior art, improve the splicing accuracy of the splicing display screen, and improve the display effect of the splicing display screen, thereby ensuring a good viewing experience for users.

[0049] To achieve the above purpose, the technical solution provided in the embodiment of the present application is as follows, specifically combined with Figures 1 to 14 The technical solution provided in the embodiments of the present application is described in detail.

[0050] refer to Figure 1 As shown, it is a schematic diagram of the structure of a spliced ​​display screen provided in an embodiment of the present application, wherein the spliced ​​display screen provided in an embodiment of the present application comprises: at least two display panels 100, each of the display panels 100 comprises at least two optical components 110, and the optical components 110 are collimated beam emitters 111 or collimated beam receivers 112. At least two splicing alignment structures 120 are included in the two adjacent spliced ​​display panels 100, and the splicing alignment structure 120 comprises the collimated beam emitter 111 located in one of the display panels 100, and the collimated beam receiver 112 located in the other display panel 100 and aligned with the collimated beam emitter. Optionally, the collimated beam emitter 111 provided in an embodiment of the present application may be a laser emitter, and the collimated beam receiver 112 may be a laser receiver. In some embodiments, in all the splicing alignment structures 120 of two adjacent display panels 100 spliced ​​together provided by the embodiments of the present application, the optical components 110 of one display panel 100 are all configured as collimated beam emitters 111, and the optical components 110 of the other display panel 100 are all configured as collimated beam receivers 112, such as Figure 1 The spliced ​​display shown. Or refer to Figure 2 As shown, it is a schematic diagram of the structure of another spliced ​​display screen provided in an embodiment of the present application, wherein, in all the splicing alignment structures 120 of two adjacent display panels 100, the optical component 110 of one display panel 100 is partially set as a collimated beam emitter 111 and partially set as a collimated beam receiver 112, while the optical component 110 of the other display panel 100 is partially set as a collimated beam receiver 112 and partially set as a collimated beam emitter 111.

[0051] From the above content, it can be seen that the technical solution provided by the embodiment of the present application, the splicing alignment structure 120 includes a collimated beam emitter 111 set on one display panel 100, and a position-aligned collimated beam receiver 112 is set on another display panel 100, and the collimated beam emitted by the collimated beam emitter 111 in the splicing alignment structure 120 is received by the position-aligned quasi-beam receiver 112, so that based on at least two splicing alignment structures 120 set in the two adjacent display panels to be spliced, and based on the collimation characteristics of the collimated beam, it is possible to ensure that the spliced ​​display screen can achieve high-precision splicing in the horizontal direction and the vertical direction (wherein the horizontal direction is the direction parallel to the plane where the spliced ​​display screen is located, and the vertical direction is the direction perpendicular to the plane where the spliced ​​display screen is located), thereby avoiding the splicing misalignment problem of the spliced ​​display screen, improving the display effect of the spliced ​​display screen, and thus ensuring a good viewing experience for the user.

[0052] In order to improve the splicing accuracy of the spliced ​​display screen, in the splicing alignment structure 120, that is, in the aligned collimated beam emitter 111 and the collimated beam receiver 112, the misalignment difference of the collimated beam emitter 111 and the collimated beam receiver 112 in the first direction provided by the embodiment of the present application is not greater than 1% of the dot pitch of the display panel; wherein the first direction is parallel to the plane where the display panel 100 is located, and the first direction is perpendicular to the collimated beam emitted by the collimated beam emitter 111. The dot pitch is the spacing between adjacent pixel points on the display panel 100, and this parameter is the same as that in the prior art, so no unnecessary elaboration is made. It can be understood that the misalignment difference in the first direction between the collimated beam emitter 111 and the collimated beam receiver 112 provided in the embodiment of the present application is actually the misalignment difference between the light emitting point of the collimated beam emitter 111 and the light receiving point of the collimated beam receiver 112 in the first direction, and the misalignment difference between the light emitting point of the collimated beam emitter 111 and the light receiving point of the collimated beam receiver 112 in the first direction is limited to be no more than 1% of the dot pitch of the display panel, thereby ensuring that the splicing accuracy of the spliced ​​display screen in the horizontal direction is higher, improving the display effect of the spliced ​​display screen, and thus ensuring a good viewing experience for the user.

[0053] In addition, in the splicing alignment structure 120, that is, in the aligned collimated beam emitter 111 and the collimated beam receiver 112, the misalignment difference of the collimated beam emitter 111 and the collimated beam receiver 112 in the second direction provided by the embodiment of the present application is within the allowable range (the present application does not limit the specific value of the allowable range, and needs to be specifically analyzed according to the actual application); the second direction is perpendicular to the plane where the display panel 100 is located. In other words, the misalignment difference of the collimated beam emitter 111 and the collimated beam receiver 112 in the second direction provided by the embodiment of the present application is actually the misalignment difference between the light emitting point of the collimated beam emitter 111 and the light receiving point of the collimated beam receiver 112 in the second direction, and the misalignment difference between the light emitting point of the collimated beam emitter 111 and the light receiving point of the collimated beam receiver 112 in the second direction is limited to within the allowable range, so that the splicing accuracy of the spliced ​​display screen in the vertical direction can be guaranteed to be higher, so that the display surfaces of all display panels 100 are at the same height, and the display effect of the spliced ​​display screen is improved, thereby ensuring a good viewing experience for users. In order to ensure that the display surface of the display panel 100 is at the same height, the height of the light emitting point and the light receiving point can be adjusted with the display surface of the display panel 100 as a reference surface; that is, in the splicing alignment structure of two adjacent display panels 100, and in the second direction, the height difference between the light emitting point of the collimated beam emitter 111 and the display surface of the display panel 100 where it is located is set to be the same as the height difference between the light receiving point of the collimated beam receiver 112 and the display surface of the display panel 100 where it is located, thereby making the display surfaces of the two display panels 100 after splicing meet the co-planar condition. Alternatively, the heights of the light emitting point and the light receiving point can be adjusted with the light emitting surface of the light emitting element 20 of the display panel 100 as a reference surface; that is, in the splicing alignment structure of two adjacent display panels 100, and in the second direction, the height difference between the light emitting point of the collimated beam emitter 111 and the light emitting surface of the light emitting element 20 of the display panel 100 where it is located, and the height difference between the light receiving point of the collimated beam receiver 112 and the light emitting surface of the light emitting element 20 of the display panel 100 where it is located are set to be the same, thereby making the display surfaces of the two display panels 100 after splicing meet the co-planar condition.

[0054] In some embodiments, the optical assembly 110 provided in the embodiment of the present application may be located on the same side as the light emitting element 20 in the display panel 100. Figure 3 and Figure 4 As shown, Figure 3 A schematic diagram of the structure of another spliced ​​display screen provided in an embodiment of the present application is shown in FIG. Figure 4 for Figure 3The cross-sectional view along the AA' direction in the figure. The display panel 100 provided in the embodiment of the present application includes: a driving substrate 10, a plurality of connecting electrodes 11 are exposed on one side of the driving substrate 10; a plurality of light-emitting elements 20, the light-emitting elements 20 are located on the driving substrate 10, and the chip electrodes 21 of the light-emitting elements 20 are fixedly connected to the connecting electrodes 11; the optical component 110 and the light-emitting elements 20 are located on the same side of the driving substrate 10. It can be understood that the driving circuit of the optical component 110 provided in the embodiment of the present application can be prepared in the driving substrate 10, and the optical component 110 and the light-emitting elements 20 are prepared on the same side of the driving substrate 10. The circuit for driving the light-emitting elements 20 can be prepared in the driving substrate 10 while the driving circuit for driving the optical component 110 can be prepared, thereby simplifying the preparation process of the display panel 100. Generally, the chip electrode 21 of the light-emitting element 20 includes two electrodes, one input and one output. Therefore, the connecting electrode 11 has two corresponding electrodes. Reference Figure 5 As shown, it is a schematic diagram of the structure of a display panel provided in an embodiment of the present application, wherein the chip electrode 21 provided in the embodiment of the present application includes an anode 21a and a cathode 21b, and the anode 21a and the cathode 21b are both located on the side of the light-emitting element 20 facing the driving substrate 10; similarly, the connecting electrode 11 includes a first electrode 11a corresponding to the anode 21a and 11b corresponding to the cathode 21b, the first electrode 11a is electrically connected to the anode 21a, and the second electrode 11b is electrically connected to the cathode 21b.

[0055] It should be noted that the optical assembly 110 provided in the embodiment of the present application can also be located on a different side of the driving substrate 10 from the light emitting element 20 in the display panel 100, and the present application does not make any specific restrictions on this. Optionally, the light emitting element 20 provided in the embodiment of the present application can be a light emitting diode, and can further be a micro light emitting diode, such as Micro-LED, Mini-LED, etc.

[0056] The driving substrate 10 provided in the embodiment of the present application is integrated with a circuit structure such as a pixel circuit for driving the light-emitting element 20. The pixel circuit is electrically connected to the light-emitting element 20. The pixel circuit is used to provide a corresponding driving signal to the light-emitting element 20. The pixel circuit is composed of components such as corresponding transistors and capacitors, which is the same as the prior art, so no unnecessary details are given. Figure 6As shown, it is a schematic diagram of the structure of another display panel provided by an embodiment of the present application, wherein the driving substrate 10 includes a substrate 101; a semiconductor layer 102 located on the substrate 101, the semiconductor layer 102 including an active area forming a transistor TFT; a gate insulating layer 103 located on the side of the semiconductor layer 102 away from the substrate 101; a gate metal layer 104 located on the side of the gate insulating layer 103 away from the substrate 101, the gate metal layer 104 including a gate electrode forming the transistor TFT; a capacitor insulating layer 105 located on the side of the gate metal layer 104 away from the substrate 101; a capacitor metal layer 106 located on the side of the capacitor insulating layer 105 away from the substrate 101, the capacitor metal layer 106 including a plate forming a capacitor in the circuit, and the other plate forming the capacitor can be located on the gate metal layer 104, or the other plate forming the capacitor can be located on the source-drain metal layer 108; an interlayer insulating layer 107 located on the side of the capacitor metal layer 106 away from the substrate 101; a source-drain metal layer located on the side of the interlayer insulating layer 107 away from the substrate 101 108, the source-drain metal layer 108 includes a source and a drain forming a transistor TFT, and the source and the drain are in contact with the active area through respective vias; a passivation layer 109 located on the side of the source-drain metal layer 108 facing away from the substrate 101; a circuit metal layer 1010 located on the side of the passivation layer 109 facing away from the substrate 101; a planarization layer 1011 located on the side of the circuit metal layer 1010 facing away from the substrate 101; and an electrode layer 1012 located on the side of the planarization layer 1011 facing away from the substrate 101, the electrode layer 1012 It includes a first electrode 11a and a second electrode 11b; wherein the first electrode 11a is electrically connected to the switching electrode 13 in the circuit metal layer 1010 through a via hole, and the switching electrode 13 is electrically connected to the electrode (which can be the source or the drain, which needs to be specifically selected according to the actual application) of the transistor TFT in the source-drain metal layer 108 through a via hole, and the second electrode 11b is electrically connected to the power supply electrode 14 in the circuit metal layer 1010 through a via hole, thereby forming a circuit for providing a driving signal to the light-emitting element 20.

[0057] Figure 6 In the display panel shown, the transistor TFT in the driving substrate 10 is a top-gate transistor, that is, the gate of the transistor TFT is located above the active layer. In some other embodiments of the present application, the transistor TFT in the driving substrate 10 provided in the embodiment of the present application can also be a bottom-gate transistor, that is, the gate of the transistor TFT is located below the active layer. Figure 710 is a schematic diagram of the structure of another display panel provided by an embodiment of the present application, wherein the driving substrate 10 includes a substrate 101; a gate metal layer 104 located on the substrate 101, the gate metal layer 104 includes a gate electrode for forming a transistor TFT; a gate insulating layer 103 located on the side of the gate metal layer 104 away from the substrate 101; a semiconductor layer 102 located on the side of the gate insulating layer 103 away from the substrate 101, the semiconductor layer 102 includes an active region for forming a transistor TFT; a capacitor insulating layer 105 located on the side of the semiconductor layer 102 away from the substrate 101; a capacitor metal layer 106 located on the side of the capacitor insulating layer 105 away from the substrate 101, the capacitor metal layer 106 includes a plate for forming a capacitor in a circuit, and the other plate for forming the capacitor can be located on the gate metal layer 104, or the other plate for forming the capacitor can be located on the source-drain metal layer 108; an interlayer insulating layer 107 located on the side of the capacitor metal layer 106 away from the substrate 101; a source-drain metal layer 108 located on the side of the interlayer insulating layer 107 away from the substrate 101 The source-drain metal layer 108 includes a source electrode and a drain electrode forming a transistor TFT, and the source electrode and the drain electrode are in contact with the active area through respective vias; a passivation layer 109 located on the side of the source-drain metal layer 108 facing away from the substrate 101; a circuit metal layer 1010 located on the side of the passivation layer 109 facing away from the substrate 101; a planarization layer 1011 located on the side of the circuit metal layer 1010 facing away from the substrate 101; and an electrode layer 1012 located on the side of the planarization layer 1011 facing away from the substrate 101, and the electrode layer 101 2 includes a first electrode 11a and a second electrode 11b; wherein the first electrode 11a is electrically connected to the switching electrode 13 in the circuit metal layer 1010 through a via hole, and the switching electrode 13 is electrically connected to an electrode (which may be a source electrode or a drain electrode, which needs to be specifically selected according to actual applications) of a transistor TFT in the source-drain metal layer 108 through a via hole, and the second electrode 11b is electrically connected to the power supply electrode 14 in the circuit metal layer 1010 through a via hole, thereby forming a circuit for providing a driving signal to the light-emitting element 20.

[0058] refer to Figure 8, which is a schematic diagram of the structure of another spliced ​​display screen provided by an embodiment of the present application, wherein, in two adjacent display panels 100 that are spliced, at least two optical components 110 are arranged at the edge of the display panel 100 close to the splicing boundary A1 and along the extension direction of the splicing boundary A1. The splicing boundary A1 is the boundary between the two adjacent display panels 100 after the two adjacent display panels 100 are spliced. That is to say, in two adjacent display panels 100 that are spliced, the optical components 110 belonging to the splicing alignment structure 120 in each display panel 100 are arranged at the edge of the display panel 100 close to the splicing boundary A1; on the one hand, in the splicing alignment structure 120, the paths of the collimated light beams emitted and received by the collimated light beam emitter 111 and the collimated light beam receiver 120 can be shortened, thereby reducing the risk of interference in the collimated light beam path and improving the splicing accuracy of the spliced ​​display screen; on the other hand, it can avoid the problem of affecting the circuit layout and pixel layout of the display panel 100 when the optical component 110 is arranged in the central area of ​​the display panel 100, thereby ensuring the high resolution of the display panel 100 and the high display effect of the spliced ​​display screen.

[0059] Figure 8 The description is made by taking a spliced ​​display screen including two display panels 100 as an example, in order to explain the solution in more detail. Figure 4 The spliced ​​display screen shown includes four display panels 100 . Fig. 9 In the spliced ​​display screen shown, four display panels 100 are arranged in a two-column and two-row shape, and the four display panels 100 are defined as a first display panel 1001, a second display panel 1002, a third display panel 1003, and a fourth display panel 1004 in a clockwise direction. A first splicing boundary A11 is provided between the first display panel 1001 and the second display panel 1002, a second splicing boundary A12 is provided between the second display panel 1002 and the third display panel 1003, a third splicing boundary A13 is provided between the third display panel 1003 and the fourth display panel 1004, and a fourth splicing boundary A14 is provided between the fourth display panel 1004 and the first display panel 1001. In any two adjacent display panels 100 spliced ​​together, at least two splicing alignment structures 120 are included, and the splicing alignment structure 120 includes a collimated beam transmitter 111 in one display panel 100, and a collimated beam receiver 112 included in another display panel 100. In addition, in two adjacent display panels 100 that are spliced, the optical components 110 belonging to the splicing alignment structure 120 in each display panel 100 are arranged at the edge of the display panel 100 close to the splicing boundary A1.

[0060] Furthermore, at an edge of the display panel 100 close to the splicing boundary A1 and along the extending direction of the splicing boundary A1 corresponding to the edge of the display panel 100, the spacing between at least one of the optical components 110 and the other optical components 110 is greater than the set spacing. Figure 4 The second display panel 1002 shown is close to the edge of the first splicing boundary A11, and the two optical components 110 are arranged along the extension direction of the first splicing boundary A11, and the spacing d1 between the two optical components is greater than the set spacing, thereby avoiding the problem that the spacing between adjacent splicing alignment structures 120 is too small, and when the two spliced ​​display panels 100 have a slight deflection in the vertical direction, the collimated beam receiver 112 in each splicing alignment structure 120 can still successfully receive the collimated beam, which ultimately leads to the problem of poor splicing accuracy between the two spliced ​​display panels 100. The embodiment of the present application does not specifically limit the value of the set spacing, and needs to be specifically designed according to parameters such as the side length of the display panel 100. For example, the set spacing can be no less than 1 / 15 of the side length of the edge line of the display panel 100 corresponding to the optical component 110, and can specifically be 1 / 12, 1 / 10, 1 / 5, 1 / 2, etc. of the side length of the display panel 100, and the present application does not specifically limit this. In some embodiments, an optical component 110 may be disposed at each corner position along the extending direction of the splicing boundary line A1 corresponding to the edge of the display panel 100 provided in the embodiment of the present application.

[0061] It should be noted that the embodiments of this application Figure 8 and Fig. 9 The optical component 110 is located at the edge of the display panel 100. In some other embodiments, the optical component 110 provided in the embodiment of the present application can also be located in the central area of ​​the display panel 100, or in an area close to the center, etc., and the present application does not make specific restrictions on this. In some embodiments, the optical component 110 provided in the embodiment of the present application can be located in the gap area between the light emitting elements 20, such as Figure 3 In the spliced ​​display screen shown, the optical component 110 is located in the area between two adjacent light emitting elements 20. Fig. 9 As shown, it is a structural schematic diagram of another spliced ​​display screen provided in an embodiment of the present application, wherein, when the optical component 10 provided in the embodiment of the present application is located at the edge of the display panel 100, the optical component 10 can be located outside the area where all light-emitting elements 20 are located and close to the splicing boundary A1, and the present application does not make specific restrictions on this.

[0062] refer to Fig.11, which is a schematic diagram of the structure of another spliced ​​display screen provided in an embodiment of the present application, wherein the spliced ​​display screen provided in an embodiment of the present application is a foldable display screen, wherein the foldable display screen can be folded at least once in one-dimensional direction, and the folding portion of the foldable display screen is arranged in the gap area between the spliced ​​display panels 100. In an embodiment of the present application, the spliced ​​display screen is prepared as a foldable display screen, which is more convenient for transportation and home use of large-sized spliced ​​display screens.

[0063] Based on the same inventive concept, the embodiment of the present application also provides a splicing method for splicing the spliced ​​display screens provided by any of the above embodiments. Fig.12 FIG. 1 is a flow chart of a splicing method provided in an embodiment of the present application, wherein the splicing method provided in an embodiment of the present application includes:

[0064] S1. Place all the display panels 100 at splicing positions.

[0065] S2, turning on the optical component 110 to fine-tune the position of the display panel 100, wherein, in the splicing alignment structure 120, the collimated beam receiver 112 receives the collimated beam emitted by the collimated beam transmitter 111.

[0066] It can be understood that the technical solution provided in the embodiment of the present application first places the display panel 100 according to the splicing position to perform a coarse alignment splicing process; then the optical component 110 is turned on to fine-tune the position of the display panel 100 to perform a fine alignment splicing process, wherein, when the splicing display screen is spliced, the collimated light beam emitted by the collimated light beam emitter 111 in all the splicing alignment structures 120 of the spliced ​​display screen is received by the aligned quasi-beam receiver 112, thereby, based on the collimation characteristics of the collimated light beam, it is possible to ensure that the spliced ​​display screen can achieve high-precision splicing in both the horizontal and vertical directions, avoid the splicing misalignment problem of the spliced ​​display screen, improve the display effect of the spliced ​​display screen, and thus ensure a good viewing experience for users.

[0067] In some embodiments, the fine alignment and splicing process shown in step S2 provided in the embodiment of the present application can be fine-tuned in a point-to-surface manner for the display panel 100. Fig.13 FIG. 1 is a flow chart of another splicing method provided in an embodiment of the present application, wherein in step S2 provided in an embodiment of the present application, the position of the display panel 100 is finely adjusted by the optical component 110, including:

[0068] S21 , selecting one of the display panels 100 as a reference display panel.

[0069] S22. Turn on the optical component 110 on the reference display panel and at least one of the display panels 100 adjacent thereto and perform fine position adjustment, so that in all the splicing alignment structures 120 of the reference display panel and the display panels 100 adjacent thereto, the collimated light beam emitted by the collimated light beam transmitter 111 is received by the aligned quasi-beam receiver 112.

[0070] S23, taking the display panel 100 after position fine-tuning as the target display panel, turning on the optical component 110 on the target display panel and at least one of the display panels 100 adjacent thereto to perform position fine-tuning, so that in all the splicing alignment structures 120 of the target display panel and the display panels 100 adjacent thereto, the collimated light beam emitted by the collimated light beam transmitter 111 is received by the aligned quasi-beam receiver 112.

[0071] S24, repeat the above process until the positions of all the display panels 100 are finely adjusted, so that the collimated light beams emitted by the collimated light beam emitters 111 in all the splicing alignment structures 120 are received by the aligned collimated light beam receivers 112.

[0072] To elaborate Fig.13 The fine alignment and stitching process shown in the figure is as follows: Fig.14 The splicing method is described by taking a spliced ​​display screen as an example. Fig.14 Take 16 display panels 100 arranged in 4 rows and 4 columns as an example, and in order to facilitate positioning of the display panel 100, Fig.14 The 16 display panels 100 are also illustrated in coordinate form; that is, the spliced ​​display screen includes display panel (1,1), display panel (1,2), display panel (1,3), display panel (1,4), display panel (2,1), display panel (2,2), display panel (2,3), display panel (2,4), display panel (3,1), display panel (3,2), display panel (3,3), display panel (3,4), display panel (4,1), display panel (4,2), display panel (4,3) and display panel (4,4). The point-to-surface fine alignment splicing process provided in the embodiment of the present application may include:

[0073] The display panel (1, 1) is selected as the reference display panel. Then, the optical components 110 in all the splicing alignment structures 120 of the display panel (1, 1) and the display panel (1, 2) can be turned on, and the display panel (1, 1) and the display panel (1, 2) can be fine-tuned so that the collimated light beam emitted by the collimated light beam transmitter 111 in all the splicing alignment structures 120 of the display panel (1, 1) and the display panel (1, 2) is received by the aligned collimated light beam receiver 112. After the fine adjustment of the display panel (1, 2) is completed, the display panel (1, 2) is used as the target display panel, the optical components 110 in all the splicing alignment structures 120 of the display panel (1, 2) and the display panel (1, 3) are turned on, and the display panel (1, 2) and the display panel (1, 3) are finely adjusted, so that the collimated light beam emitted by the collimated light beam emitter 111 in all the splicing alignment structures 120 of the display panel (1, 2) and the display panel (1, 3) is received by the aligned quasi-beam receiver 112. Then, the above process is repeated to finely adjust the position of each column of the display panel 100 until the position of all the display panels 100 is finely adjusted, so that the collimated light beam emitted by the collimated light beam emitters 111 in all the splicing alignment structures 120 is received by the aligned quasi-beam receiver 112.

[0074] The above-mentioned fine alignment splicing process is to fine-tune the position of the display panel 100 in the column direction. In addition, the embodiment of the present application can also fine-tune the position of the display panel 100 in the row direction. The specific fine alignment splicing process may include:

[0075] The display panel (1, 1) is selected as a reference display panel. Then, the optical components 110 in all the splicing alignment structures 120 of the display panel (1, 1) and the display panel (2, 1) can be turned on, and the display panel (1, 1) and the display panel (2, 1) can be fine-tuned so that in all the splicing alignment structures 120 of the display panel (1, 1) and the display panel (2, 1), the collimated light beam emitted by the collimated light beam transmitter 111 is received by the aligned quasi-beam receiver 112. After the fine adjustment of the display panel (2, 1) is completed, the display panel (2, 1) is used as the target display panel, the optical components 110 in all the splicing alignment structures 120 of the display panel (2, 1) and the display panel (3, 1) are turned on, and the display panel (2, 1) and the display panel (3, 1) are finely adjusted, so that the collimated light beams emitted by the collimated light beam emitters 111 in all the splicing alignment structures 120 of the display panel (2, 1) and the display panel (3, 1) are received by the aligned quasi-beam receivers 112. Then, the above process is repeated to finely adjust the position of each row of display panels 100 until the positions of all display panels 100 are finely adjusted, so that the collimated light beams emitted by the collimated light beam emitters 111 in all the splicing alignment structures 120 are received by the aligned quasi-beam receivers 112.

[0076] The above two fine alignment and splicing processes are both performed by fine-tuning the position starting from the corner display panel 100. In addition, in the embodiment of the present application, fine-tuning the position can also be performed starting from the middle display panel 100. The specific fine alignment and splicing process may include:

[0077] The display panel (2, 2) is selected as the reference display panel. Then, the optical components 110 in all the splicing alignment structures 120 of the display panel (2, 2) and the display panel (2, 3) can be turned on, and the display panel (2, 2) and the display panel (2, 3) can be fine-tuned so that in all the splicing alignment structures 120 of the display panel (2, 2) and the display panel (2, 3), the collimated light beam emitted by the collimated light beam transmitter 111 is received by the aligned quasi-beam receiver 112. After the fine adjustment of the display panel (2, 3) is completed, the display panel (2, 3) is used as the target display panel, the optical components 110 in all the splicing alignment structures 120 of the display panel (2, 3) and the display panel (2, 4) are turned on, and the display panel (2, 3) and the display panel (2, 4) are finely adjusted, so that the collimated light beam emitted by the collimated light beam emitter 111 in all the splicing alignment structures 120 of the display panel (2, 3) and the display panel (2, 4) is received by the aligned quasi-beam receiver 112. Then, the above process is repeated to finely adjust the positions of the display panels 100 in an orderly or disorderly manner until the positions of all the display panels 100 are finely adjusted, so that the collimated light beam emitted by the collimated light beam emitters 111 in all the splicing alignment structures 120 is received by the aligned quasi-beam receiver 112.

[0078] It should be noted that the splicing method provided in the embodiment of the present application is not limited to the several fine alignment splicing methods provided above. In some other embodiments, the embodiment of the present application can also use other fine-tuning sequences to fine-tune the splicing of the display panel 100, as long as the collimated light beams emitted by the collimated light beam emitters 111 in all the splicing alignment structures 120 in the final spliced ​​display screen are received by the aligned quasi-beam receivers 112. In addition, the splicing method provided in the embodiment of the present application is not only applicable to the installation process of the spliced ​​display screen after it leaves the factory, but also to the debugging process of the spliced ​​display screen before it leaves the factory. Specifically, in the debugging process of the spliced ​​display screen before it leaves the factory, the prepared display panel 100 with the optical component 110 is placed on the splicing jig for rough alignment, and then the splicing method provided in any of the above embodiments is used to fine-tune the display panel 100 to complete the fine alignment, until the positions of all display panels 100 are fine-tuned to meet the factory requirements.

[0079] In summary, the embodiments of the present application provide a spliced ​​display screen and a splicing method, wherein the spliced ​​display screen includes: at least two display panels, each of the display panels includes at least two optical components, and the optical components are collimated beam emitters or collimated beam receivers; at least two splicing alignment structures are included in two adjacent spliced ​​display panels, and the splicing alignment structure includes the collimated beam emitter located in one of the display panels, and a collimated beam receiver located in another display panel and aligned with the collimated beam emitter.

[0080] From the above content, it can be seen that the technical solution provided by the embodiment of the present application is to set at least two splicing alignment structures in two adjacent spliced ​​display panels, and each splicing alignment structure includes a collimated light beam transmitter set on one display panel, and a position-aligned collimated light beam receiver set on the other display panel. Therefore, based on the collimation characteristics of the collimated light beam, it is possible to ensure that the spliced ​​display screen can achieve high-precision splicing in both the horizontal and vertical directions, avoid the splicing misalignment problem of the spliced ​​display screen, improve the display effect of the spliced ​​display screen, and thus ensure a good viewing experience for users.

[0081] In the description of the embodiments of the present application, it needs to be understood that the orientation or position relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0082] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the embodiments of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0083] In the embodiments of the present application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0084] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0085] In the embodiments of the present application, if the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" appear, it means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradicting each other.

[0086] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A spliced ​​display screen, characterized in that: include: At least two display panels, each of the display panels comprises at least two optical components, and the optical components are collimated light beam transmitters or collimated light beam receivers; At least two splicing alignment structures are included in two adjacent spliced ​​display panels. The splicing alignment structure includes the collimated beam emitter located in one of the display panels, and a collimated beam receiver located in another of the display panels and aligned with the collimated beam emitter.

2. The spliced ​​display screen according to claim 1, characterized in that: The collimated beam transmitter is a laser transmitter, and the collimated beam receiver is a laser receiver.

3. The spliced ​​display screen according to claim 1, characterized in that: In two adjacent display panels that are spliced, at least two optical components are arranged at edges of the display panels close to a splicing boundary and along an extending direction of the splicing boundary.

4. The spliced ​​display screen according to claim 3, characterized in that: At an edge of the display panel close to the splicing boundary, a distance between at least one of the optical components and the remaining optical components is greater than a set distance.

5. The spliced ​​display screen according to claim 1, characterized in that: In the splicing alignment structure, the misalignment difference between the collimated light beam transmitter and the collimated light beam receiver in the first direction is no more than 1% of the dot pitch of the display panel; The first direction is parallel to the plane where the display panel is located, and the first direction is perpendicular to the collimated light beam emitted by the collimated light beam emitter.

6. The spliced ​​display screen according to claim 1, characterized in that: In the splicing alignment structure, the misalignment difference between the collimated light beam transmitter and the collimated light beam receiver in the second direction is within an allowable range; The second direction is perpendicular to the plane where the display panel is located.

7. The spliced ​​display screen according to claim 1, characterized in that: The display panel comprises: A driving substrate, wherein a plurality of connecting electrodes are exposed on one side of the driving substrate; A plurality of light-emitting elements, wherein the light-emitting elements are located on the driving substrate, and chip electrodes of the light-emitting elements are fixedly connected to the connecting electrodes; The optical component and the light emitting element are located on the same side of the driving substrate.

8. The spliced ​​display screen according to claim 1, characterized in that: The spliced ​​display screen is a foldable display screen.

9. A splicing method, characterized in that: Used for splicing the spliced ​​display screen according to any one of claims 1 to 8, wherein the splicing method comprises: Placing all the display panels according to the splicing positions; The optical component is turned on to fine-tune the position of the display panel, wherein, in the splicing alignment structure, the collimated beam receiver receives the collimated beam emitted by the collimated beam transmitter.

10. The splicing method according to claim 9, characterized in that: The fine-tuning of the position of the display panel by the optical component comprises: Selecting one of the display panels as a reference display panel; Turning on the optical components on the reference display panel and at least one of the display panels adjacent thereto to perform fine position adjustment; Taking the display panel after position fine-tuning as the target display panel, turning on the optical components on the target display panel and at least one of the display panels adjacent thereto to perform position fine-tuning; The above process is repeated until the positions of all the display panels are finely adjusted.

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