WO2021022968A1

WO2021022968A1 - Display screen and assembly method therefor

Info

Publication number: WO2021022968A1
Application number: PCT/CN2020/100967
Authority: WO
Inventors: 贺金锋; 康鹏飞
Original assignee: 深圳市洲明科技股份有限公司
Priority date: 2019-08-08
Filing date: 2020-07-09
Publication date: 2021-02-11
Also published as: CN110444127B; CN110444127A

Abstract

A display screen (10) and an assembly method therefor. The assembly method for the display screen (10) comprises: acquiring position information of multiple first preset positions on at least two display modules (200); detecting whether the spacing (b) between the first preset positions of two adjacent display modules (200) in a second orientation (ORNT2) matches a first preset spacing (a); when the spacing (b) matches the first preset spacing (a), acquiring position information of multiple second preset positions on a box body (100); detecting whether the spacing (d) between each first preset position and each second preset position matches a second preset spacing; and when the spacing (d) matches the second preset spacing, assembling the box body (100) and the multiple display modules (200). The spacing between adjacent and flush display modules (200) is adjusted according to the position information of the first preset positions on the display modules (200) and the first preset spacing (a), thereby improving the precision of the gap between the display modules (200). The spacing between the box body (100) and the display modules (200), which are parallel to each other, is adjusted according to the position information of the second preset positions and the second preset spacing, such that the spacing between the box body (100) and the display modules (200) is adjustable, thereby improving the flatness between the display modules (200) and the box body (100).

Description

Display screen and its assembling method

Cross references to related applications

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on August 8, 2019, the application number is 201910729535.5, and the application name is "display screen and its assembly method", the entire content of which is incorporated into this application by reference.

Technical field

This application relates to the technical field of display screens, in particular to a display screen and an assembly method thereof.

Background technique

The LED display is composed of multiple display modules, and there are gaps between adjacent display modules. Due to assembly errors, it is easy to cause the pixel spacing between adjacent modules to be too large or too small, that is, the pixel spacing between two adjacent modules exceeds the preset spacing range, which affects the overall display effect of the display. , The level of assembly determines the display effect of the display.

For small-pitch displays, as the pixel pitch decreases, the processing accuracy requirements for the cabinet and bottom shell become more stringent. However, the cumulative error of the traditional assembly method is too large, and the module installation process requires Repeatedly changing the position of the module, and then manually adjusting in a small range, the adjustability is poor, the improvement effect is not obvious, so that the gap accuracy between the module and the module and the flatness between the module and the cabinet are low, and the display is small. The display effect of the screen is poor.

Summary of the invention

According to various embodiments of the present application, a display screen and an assembly method thereof are provided.

A method for assembling a display screen, including: acquiring position information of a plurality of first preset positions on at least two display modules, wherein the display modules have a light-emitting surface;

Detecting whether two adjacent display modules are flush in a first direction according to the position information of the first preset position of each of the display modules, wherein the first direction is perpendicular to the light-emitting surface;

When two adjacent display modules are flush in the first direction, it is detected whether the distance between the first preset positions of the two adjacent display modules in the second direction matches the first preset distance , Wherein the second direction is parallel to the light emitting surface;

When the distance in the second direction between the first preset positions of two adjacent display modules matches the first preset distance, the display screen is assembled.

In one of the embodiments, when the distance in the second direction between the first preset positions of two adjacent display modules matches the first preset distance, assembling the display screen includes:

When the distance in the second direction between the first preset positions of two adjacent display modules matches the first preset distance, acquiring position information of a plurality of second preset positions on the cabinet;

According to the position information of the plurality of first preset positions of the display module and the position information of the plurality of second preset positions on the box body, detecting whether the box body and the display module are parallel ；

When the box body is parallel to the display module, detecting whether the distance between the first preset position and the second preset position matches a second preset distance;

When the distance between the first preset position and the second preset position matches the second preset distance, the box body and the plurality of display modules are assembled.

In one of the embodiments, the second direction is the connection direction of the first preset positions of two adjacent display modules when the display screen is assembled in place.

In one of the embodiments, the acquiring position information of a plurality of first preset positions on at least two display modules includes:

Obtain position information of the ends of the plurality of lamp beads on at least two display modules.

In one of the embodiments, the detecting whether the distance in the second direction between the first preset positions of two adjacent display modules matches the first preset distance includes:

Obtaining, according to the position information of the ends of the plurality of lamp beads of the display module, the first distance in the second direction of the lamp beads corresponding to the two adjacent display modules;

Detecting whether the first distance matches the first preset distance.

In one of the embodiments, the plurality of lamp beads are arranged at the edge positions of two adjacent display modules, the second direction is perpendicular to the splicing edges of the two adjacent display modules, and the The first predetermined distance is the distance between two adjacent lamp beads on one display module.

In one of the embodiments, the detecting whether the first distance matches the first preset distance includes: detecting whether the first distance is equal to the first preset distance.

In one of the embodiments, after detecting whether two adjacent display modules are flush in the first direction according to the position information of the first preset position of each display module, the method further includes:

When two adjacent display modules are not aligned in the first direction, the display module is adjusted according to the position information of the first preset position, so that two adjacent display modules Flush.

In one of the embodiments, after detecting whether the distance in the second direction between the first preset positions of two adjacent display modules matches the first preset distance, the method further includes:

When the distance between the first preset positions of two adjacent display modules in the second direction does not match the first preset distance, move the first preset position in the second direction according to the first preset distance Display modules, so that the distance between two adjacent display modules matches the first preset distance.

In one of the embodiments, the detection of the cabinet and the display is performed based on the position information of the first preset position of each of the display modules and the position information of the plurality of second preset positions on the cabinet. The steps for whether the modules are parallel include:

According to the position information of the plurality of first preset positions of the display module and the position information of the plurality of second preset positions on the cabinet, the plurality of second preset positions of the display module are detected Whether the distance between a preset position and the plurality of second preset positions on the box body in the first direction is equal, when the plurality of first preset positions of the display module and the When the distances between the plurality of second preset positions on the box body in the first direction are equal, the box body is parallel to the display module; when the plurality of first preset positions of the display module When the distance between the position and the plurality of second preset positions on the box body in the first direction is not equal, the box body and the display module are not parallel.

Corresponding to each second preset position on the box body with a geometric center formed by the plurality of first preset positions on the display module, and detecting the Whether the distance between the geometric center formed by a plurality of first preset positions and the corresponding second preset position in the first direction is equal; when the geometric center formed by the plurality of first preset positions on each display module is equal When the distance between the center and the corresponding second preset position in the first direction is the same, each display module is parallel to the box; when a plurality of first When the distance between the geometric center formed by the preset position and the corresponding second preset position in the first direction is not equal, the display modules are not parallel to the box body.

In one of the embodiments, when the box body is parallel to the display module, detecting whether the distance between the first preset position and the second preset position matches the second preset distance, It also includes: when the box body is parallel to the display modules, detecting whether the distance between the geometric center formed by the plurality of first preset positions and the geometric center formed by the plurality of second preset positions is the same The second preset distance matches.

In one of the embodiments, after detecting whether the cabinet is parallel to each display module, the method further includes:

When the box body is not parallel to each display module, the box body is rotated according to the position information of the first preset position and the position information of the second preset position, so that the box body and the display module The modules are parallel.

In one of the embodiments, when the box body is parallel to the display module, it is detected whether the distance between the first preset position and the second preset position is equal to the second preset distance Matching means detecting the distance between the geometric center formed by the plurality of first preset positions and the geometric center formed by the plurality of second preset positions when the box body is parallel to the display modules Whether it is equal to the second preset distance.

In one of the embodiments, after the distance between the first preset position and the second preset position matches the second preset distance, the method further includes: according to the first preset position The position information of the second preset position and the position information of the second preset position, move the box on a plane parallel to the light-emitting surface, so that the box is aligned with the display module formed by splicing the display module .

In one of the embodiments, according to the position information of the first preset position and the position information of the second preset position, the box body is moved on a plane parallel to the light emitting surface, so that Aligning the box body with the display module formed by splicing the display module further includes aligning a geometric center formed by a plurality of the first preset positions with a geometric center formed by a plurality of the second preset positions .

In one of the embodiments, the acquiring position information of a plurality of second preset positions on the box body includes: acquiring position information of a plurality of positioning marks on the box body.

A display screen includes a box body assembled by the display screen assembly method in any of the above embodiments and at least two display modules.

The details of one or more embodiments of the application are set forth in the following drawings and description. Other features, objects and advantages of the present invention will become apparent from the description, drawings and claims.

Description of the drawings

In order to better describe and illustrate the embodiments and/or examples of the inventions disclosed herein, one or more drawings may be referred to. The additional details or examples used to describe the drawings should not be considered as limiting the scope of any of the disclosed inventions, the currently described embodiments and/or examples, and the best mode of these inventions currently understood.

Fig. 1 is a flowchart of a method for assembling a display screen according to an embodiment.

Fig. 2 is a schematic structural diagram of a display screen according to an embodiment.

Fig. 3 is a cross-sectional view of the display screen of the embodiment shown in Fig. 2 along the direction A-A.

Detailed ways

In order to facilitate the understanding of the application, the application will be described in a more comprehensive manner with reference to the relevant drawings. The preferred embodiments of the application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the implementation described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of this application more thorough and comprehensive.

It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or a central element may also exist. When an element is considered to be "connected" to another element, it can be directly connected to the other element or an intermediate element may be present at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not meant to be the only embodiments.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of this application. The terminology used in the specification of the application herein is only for the purpose of describing specific embodiments, and is not intended to limit the application. The term "and/or" as used herein includes any and all combinations of one or more related listed items.

Please refer to FIG. 1, which is a flowchart of a display screen assembly method according to an embodiment of the application, and please combine FIG. 2 and FIG. 3. In which, FIG. 2 is a structural diagram of a display screen assembled according to the display screen assembly method shown in FIG. Fig. 3 is a cross-sectional view along the AA direction in Fig. 2.

A method for assembling a display screen, including part or all of the following steps:

S100: Assemble the cabinet and at least two display modules. At this time, the positions of the cabinet and each display module can be adjusted. Obtain position information of a plurality of first preset positions on at least two display modules, where each display module has a light-emitting surface, and the light-emitting surface of each display module is used to form the light-emitting surface of the display screen.

In this embodiment, the display screen is composed of at least two display modules, that is, the display area of the display screen is the sum of the display areas of the at least two display modules, that is, at least two display modules jointly form the display of the display screen. area. Before assembling the display screen, each display module needs to be positioned. The multiple first preset positions on each display module are selected as the positioning marks of each display module, that is, the positioning of each display module is realized through the multiple first preset positions. Each first preset location corresponds to one location information. The current position of the display module is determined through the position information of the first preset position, which facilitates subsequent adjustment of the positions between the modules. The display module has a light-emitting surface, and the first preset position and the light-emitting surface are located on the same side of the display module.

S200: Detect whether two adjacent display modules are flush in a first direction according to the position information of the first preset position of each display module, wherein the first direction is perpendicular to the light emitting surface.

In this embodiment, the current position of the display module is determined by the position information of the first preset position. Each display module includes at least three first preset positions. The first preset positions on each display module are not on the same straight line, so three or more first preset positions not on the same straight line define a plane. That is, three and more than three first preset positions on each display module that are not on the same straight line correspond to a plane, so that two adjacent display modules each form a plane, the plane determined by the first preset position Parallel to or coincide with the light emitting surface of the corresponding display module. In this way, by judging whether each plane determined by the at least three first preset positions of each display module is located on the same plane in the first direction (ORNT1 in this embodiment), it is determined that each display module is in the first direction. Whether the direction is flush.

S300: When two adjacent display modules are flush in the first direction, detect whether the distance in the second direction between the first preset positions of the adjacent two display modules matches the first preset distance. Wherein, the second direction is parallel to the light emitting surface. In some embodiments, the second direction may be that when the display screen is assembled in place, at least two first preset positions selected from a plurality of first preset positions on two adjacent display modules are connected. In other embodiments, the second direction may be perpendicular to the splicing edge of two adjacent display modules.

In this embodiment, by judging that the plane parallel to the light-emitting surface formed by the plurality of first preset positions of each display module is located on the same plane, it indicates that each display module is on the same plane. For two adjacent display modules located on the same plane, the spacing between the two adjacent display modules needs to be set within a certain distance, that is, the splicing of two adjacent display modules The edges need a certain interval. If the distance between two adjacent display modules is too large, the display screen will form a dark line between the two adjacent display modules. If the distance between two adjacent display modules is too small, the display screen will form bright lines between the two adjacent display modules, which will affect the display effect.

In this embodiment, the distance between two adjacently arranged display modules is adjusted so that the distance between two adjacently arranged display modules is at an appropriate distance. The first preset distance is the distance in the second direction between at least two first preset positions selected among the plurality of first preset positions on two adjacent display modules, the first preset distance Corresponding to the proper spacing in the second direction between two adjacent display modules. The second direction is parallel to the light emitting surface, that is, the second direction is parallel to the plane formed by the first preset position. In this embodiment, the second direction may be set as the connection direction of at least two first preset positions selected when the display screen is assembled in place. In this way, on the premise that the two adjacent display modules are flush, the distance between the first preset positions of the two adjacent display modules in the second direction is detected to determine the two adjacent display modules. Whether the spacing between the display modules reaches the appropriate spacing between the modules required by the display screen, so as to facilitate subsequent adjustments to the relationship between the spacing between two adjacent display modules and the first preset spacing to improve each display module The accuracy of the gap between.

S400: When the distance in the second direction between the first preset positions of two adjacent display modules matches the first preset distance, the display screen can be assembled, and the information of the multiple second preset positions on the cabinet can be obtained. location information.

In this embodiment, the second direction and the first direction are perpendicular to each other. The first preset position distance between two adjacent display modules is the distance between each first preset position parallel to the light emitting surface of the display module. When the distance between the selected first preset positions of two adjacent display modules in the second direction matches the first preset distance, it indicates that the distance between the two adjacent display modules in the second direction is at an appropriate level. Within the spacing range. At this time, the distance in the second direction between the two adjacent display modules is located within a suitable distance, so that the accuracy of the gap between the two adjacent display modules reaches a predetermined accuracy. The first preset distance is adjustable and can be adjusted accordingly according to the display effect of the display screen. The distance between two adjacent display modules is within an appropriate distance so that bright or dark lines appearing on the display screen of the display screen are reduced, and the probability of display errors of the display screen is reduced.

At this time, the distance between two adjacent display modules has been adjusted to an appropriate distance, that is, the accuracy of the gap between the two adjacent display modules reaches a predetermined accuracy, and the display screen can be assembled. If there are other display modules that need to be spliced and adjusted, repeat the above steps until all display modules are spliced. It is understandable that the splicing directions of multiple display modules may be different, such as horizontal splicing or vertical splicing, and even for irregular (non-rectangular) display modules, the above-mentioned second direction may be based on the current splicing adjacent The relative assembly positions of the two display modules are determined. When different display modules are spliced together, their second directions may be different.

After all the display modules are spliced, the distance between the display module and the cabinet needs to be adjusted. Before the adjustment between the display module and the cabinet, in order to ensure that the cabinet and the display module are installed flat, the cabinet must be adjusted to be parallel to the display module, so as to improve the gap between the cabinet and the display module. The flatness of the room reduces the unevenness of the display module on the cabinet. To adjust the positional relationship between the box and the display module, the position of the box needs to be determined first, and the position of the box can be determined by acquiring position information of multiple second preset positions on the box. At the same time, the position information of the second preset position can also be used to compare with the position information of the first preset position, thereby facilitating the subsequent adjustment of the spatial position of the cabinet and the display module.

S500: Detect whether the cabinet is parallel to each display module according to the position information of the first preset position of each display module and the position information of the multiple second preset positions on the cabinet.

In this embodiment, the multiple first preset positions of the display module form a plane, and the multiple second preset positions on the box body form another plane. The positional relationship between the two planes reflects the display module The positional relationship with the box, that is, the parallel relationship between the above two planes corresponds to the parallel relationship between the display module and the box. If the above two planes are parallel, the display module and the cabinet are parallel to each other. The parallel relationship between the cabinet and the display module facilitates subsequent improvement of the flatness between the cabinet and the display module.

S600: When the cabinet is parallel to each display module, detect whether the distance between the first preset position and the second preset position matches the second preset distance.

In this embodiment, the box body is parallel to each display module, which means that the plane formed by the second preset position on the box body and the plane formed by the first preset position on each display module are parallel to each other. The spacing corresponds to the proper spacing between the cabinet and each display module. Since the box body is parallel to each display module, the distance between the box body and each display module determines the relative position between the box body and each display module. When the distance between the selected at least one first preset position of each display module and the selected at least one second preset position of the box body is within the second preset distance range, it indicates that the box body and each display The modules are in a proper relative position to improve the flatness between the cabinet and each display module.

S700: When the distance between the first preset position and the second preset position matches the second preset distance, assemble a box and a plurality of display modules.

At this time, since the box body is parallel to each display module, the distance between the box body and the display module is determined by the conditions of the first preset position and the second preset position. That is, when the first preset position and the second preset position are determined, the cabinet gradually approaches the display module in parallel, and the distance between the first preset position on the display module and the second preset position on the cabinet is adjusted. . The distance between the first preset position on the display module and the second preset position on the box body cannot be too small or too large, and needs to be kept within a relatively suitable range. The second preset distance is used as a reference for the distance between the display module and the cabinet. Only when the distance between the first preset position on the display module and the second preset position on the cabinet is the same as the second preset When the spacing is matched, the box body will stop moving, so that the distance between the box body and each display module is maintained at an appropriate distance, and the box body is parallel to each display module, thereby improving the gap between the box body and each display module. The flatness between.

In the above embodiment, according to the position information of the first preset position of the display module and the first preset distance, the distance between adjacent and even display modules is adjusted so that the distance between each display module Adjustable, thereby improving the accuracy of the gap between the display modules. According to the position information of the second preset position and the second preset distance, the distance between the parallel cabinet and the display module is adjusted, so that the distance between the cabinet and the display module is adjustable, thereby improving the display module and the display module. The flatness between the boxes. Both the first preset distance and the second preset distance are distances within an adjustable range, that is, both the first preset distance and the second preset distance have an upper distance limit and a lower distance limit.

In one of the embodiments, obtaining the position information of the plurality of first preset positions on the at least two display modules includes: obtaining the position information of the ends of the plurality of lamp beads on the at least two display modules. Among them, the lamp beads are protruding and perpendicular to the light emitting surface. In this embodiment, the first preset position is the end of the lamp bead on the display module, and the position information of the first preset position is the three-dimensional coordinates of the lamp bead in the three-dimensional coordinate system. For example, two of the coordinate axes in the three-dimensional coordinates of the lamp bead are parallel to the light-emitting surface, and the third coordinate axis in the three-dimensional coordinates of the lamp bead is perpendicular to the light-emitting surface. According to the coordinates of the end of the lamp bead in the three-dimensional coordinate system, it is convenient to obtain the current position information of the lamp bead, and it is also convenient to subsequently determine the distance between the display modules and the distance between the cabinet and the display module.

In one of the embodiments, the first preset position may be the bottom of the notch opened on the display module. At this time, the position information of the first preset position is the position information of the bottom of the notch opened on the display module.

In one of the embodiments, detecting whether the distance between the first preset positions of two adjacent display modules in the second direction matches the first preset distance includes: according to the ends of the plurality of lamp beads of the display module Obtain the first distance in the second direction of the lamp beads corresponding to two adjacent display modules; detect whether the first distance matches the first preset distance. The corresponding lamp beads are the lamp beads corresponding to the selected first preset position on the respective display modules. In this embodiment, the display screen is formed by assembling a plurality of display modules, that is, each display module is adjacent to at least another display module, and the distance between two adjacent display modules is maintained at the first Preset spacing. In order to keep the distance between two adjacent display modules at the first preset distance, according to the position information of the corresponding lamp beads on each display module, the corresponding lamp beads of the two adjacent display modules are obtained. The positional relationship in the second direction is to obtain the distance between the corresponding lamp beads of two adjacent display modules in the second direction. By comparing the distance between the corresponding lamp beads of two adjacent display modules in the second direction with the first preset distance, it is determined whether the distance between two adjacent display modules is appropriate.

In one of the embodiments, the lamp beads are arranged at the edge of the display module, and the second direction is a direction parallel to the light emitting surface. In this embodiment, the second direction is also perpendicular to two adjacent display modules. For the splicing edges of the group, the first distance is the distance between the lamp beads of two adjacent display modules at the splicing site, and the first preset distance is the distance between two adjacent lamp beads on one display module. The lamp beads used as the first preset position are part of the lamp beads on the display module, and each display module is provided with a plurality of lamp beads to facilitate determining the light-emitting surface of the corresponding display module. Not on the same line. If the selected lamp beads at the edge of two adjacent display modules are adjacent to each other after being assembled in place, then the second direction is the connection direction of the two selected lamp beads after assembly, and is perpendicular to the adjacent The splicing edge of two display modules. In this way, the distance between the lamp beads at the splicing edge of two adjacent display modules is compared with the first preset distance, and subsequently when the first distance matches the first preset distance, it can be determined that two adjacent display modules are Whether the distance between the two reaches the appropriate distance. And it is convenient to keep the distance between the lamp beads of two adjacent display modules at the splicing place to match the distance between two adjacent lamp beads on one display module, which further improves the accuracy of the gap between each display module .

In one of the embodiments, detecting whether the first distance matches the first preset distance includes: detecting whether the first distance is equal to the first preset distance. In this embodiment, the first distance is the distance between the lamp beads of two adjacent display modules at the splicing site, and the first predetermined distance is the distance between two adjacent lamp beads on one display module. Detect whether the first distance is equal to the first preset distance, that is, whether the distance between the lamp beads of two adjacent display modules at the splicing place and the distance between two adjacent lamp beads on a display module are equal . In this way, when the display modules are spliced to form an entire display screen, the distance between the lamp beads of two adjacent display modules at the splicing place is equal to the distance between two adjacent lamp beads on one display module. The distance between the lamp beads of the entire display screen is kept consistent, thereby improving the accuracy of the gap between two adjacent display modules, and maintaining the integrity of the display modules after splicing.

In one of the embodiments, after detecting whether two adjacent display modules are flush according to the position information of the first preset position of each display module, the method further includes: when two adjacent display modules are in the first direction When it is not level, the display module is rotated in the first direction according to the position information of the first preset position, so that two adjacent display modules are level. In this embodiment, whether two adjacent display modules are flush in the first direction includes two conditions. One condition is whether two adjacent display modules are parallel to the direction perpendicular to the light-emitting surface, and the other condition is whether all The ends of the lamp beads on the display module are all in the same plane. Generally, the protruding distances of the end portions of the lamp beads on each display module relative to the light emitting surface in the first direction are equal. Only when the above two conditions are met, can it be determined that two adjacent display modules are flush in the first direction. When two adjacent display modules are not level in the first direction, the two adjacent display modules need to be adjusted from two directions, that is, adjust the direction of the two adjacent display modules perpendicular to the light emitting surface. And adjust the protruding distance of the end of the lamp beads on any display module in the first direction, so that the ends of all the lamp beads are located in the same plane. According to the position information of the lamp beads, the display module is rotated to adjust the relationship between two adjacent display modules in the first direction, so that the two adjacent display modules are parallel to the direction perpendicular to the light emitting surface. And make the ends of all the lamp beads are in the same plane.

In one of the embodiments, after detecting whether the distance between the first preset positions of two adjacent display modules in the second direction matches the first preset distance, the method further includes: when two adjacent display modules are When the distance between the first preset position in the second direction and the first preset distance does not match, the display module is moved in the second direction according to the first preset distance, so that the distance between two adjacent display modules The first preset distance matches. In this embodiment, when the distance between the first preset position of two adjacent display modules in the second direction does not match the first preset distance, it indicates that the first preset distance of the two adjacent display modules The distance between the positions in the second direction is not equal to the first preset distance, which also indicates that the distance between the lamp beads arranged at the edge of the joint of two adjacent display modules in the second direction is not equal to the first preset distance . Since two adjacent display modules are flush with each other at this time, that is, each display module is located on the same plane, by shifting the display module in the second direction, adjusting the distance between two adjacent display modules can make The distance between the lamp beads arranged at the edge of the joint of two adjacent display modules in the second direction is equal to the first preset distance, thereby improving the accuracy of the gap between two adjacent display modules.

In one of the embodiments, the step of detecting whether the box body is parallel to each display module according to the position information of the plurality of first preset positions of each display module and the position information of the plurality of second preset positions on the box body, It also includes: detecting the first preset position of each display module and the position information of the plurality of second preset positions of each display module and the position information of the plurality of second preset positions of each display module. Whether the distances of the two second preset positions in the first direction are equal. If the distances in the first direction between the plurality of first preset positions of each display module and the plurality of second preset positions on the box body are equal, the box body is parallel to each display module. If the distance between the first preset position of each display module and the plurality of second preset positions on the box body in the first direction is not equal, the box body and each display module are not parallel. In this embodiment, each second preset position on the cabinet is corresponding to a geometric center formed by a plurality of first preset positions on a display module, and the plurality of first preset positions on each display module are detected. Whether the distance between the geometric center formed by the preset position and the corresponding second preset position in the first direction is equal. When the distance between the geometric center formed by the plurality of first preset positions on each display module and the corresponding second preset position in the first direction is equal, it means that each display module is parallel to the cabinet; otherwise, Indicates that the display modules are not parallel to the cabinet.

In one of the embodiments, when the box body is parallel to each display module, detecting whether the distance between the first preset position and the second preset position matches the second preset distance, further includes: When the display modules are parallel, it is detected whether the distance between the geometric center formed by the plurality of first positions and the geometric center formed by the plurality of second preset positions matches the second preset distance. In this embodiment, since the lamp bead serving as the first preset position is located at the splicing edge of two adjacent display modules, the geometric center formed by a plurality of lamp beads is the result of all the display modules being spliced into a whole. The center, the geometric center formed by the multiple second preset positions is the center of the box. When the distance between the above two centers is equal to the second preset distance, it indicates that the distance between the plane where the box is located and the plane where each display module is located reaches the preset distance, thereby increasing the distance between the box and each display module. The flatness. Moreover, in order to align the box body with each display module, according to the position information of the first preset position and the position information of the second preset position, the box body is moved on a plane parallel to the light emitting surface, so that the box body and each The display planes formed by the splicing of the display modules are aligned, that is, the projection of each display module on the cabinet is completely covered on the cabinet. The above-mentioned box body rotates on a plane parallel to the display module and the distance is maintained at the second preset distance, and the geometric center of the plurality of lamp beads of each display module is aligned with the corresponding second preset position, that is, each The second preset position is aligned with the geometric center of the plurality of lamp beads on the corresponding display module. In this way, after the box body is parallel to the module, the position of the geometric center of the plurality of lamp beads of each display module is aligned with the position of the corresponding second preset position, so that the box body is aligned with the display module, thereby improving the box The flatness between the body and each display module.

In one of the embodiments, after detecting whether the cabinet and each display module are parallel, the method further includes: when the cabinet is not parallel with each display module, according to the position information of the first preset position and the position of the second preset position The information rotates the box so that the box is parallel to the display module. In this embodiment, the box body and each display module are not parallel, which means that the plane formed by the plurality of second preset positions on the box body is not between the plane formed by the plurality of first preset positions of each display module. Parallel, that is, the distance between each first preset position of each display module and the plane formed by multiple second preset positions on the box body is not equal, that is, each second preset position on the box body The distances between the planes formed by the plurality of first preset positions of each display module are not equal. When the box body is parallel to each display module, it indicates that the distance between each second preset position on the box body and the plane formed by the multiple first preset positions of each display module is equal. When the box body and the display modules are not parallel, it indicates that the distance between each second preset position on the box body and the plane formed by the multiple first preset positions of each display module is not equal. At this time, according to the position information of the first preset position and the position information of the second position, the cabinet is rotated to adjust the positional relationship between the cabinet and the display module, so that each second preset position on the cabinet is related to each The distances between the planes formed by the multiple first preset positions of the display module are all equal, so that the box body and each display module are parallel, which facilitates the subsequent adjustment of the distance between the box body and the display module by means of translation, thereby facilitating improvement The flatness between the cabinet and the display module.

In one of the embodiments, acquiring the position information of the multiple second preset positions on the box includes: acquiring the position information of the multiple positioning marks on the box. In this embodiment, the second preset position is a positioning mark on the box, and the positioning mark is used to calibrate the second preset position of the box. Through the positions of multiple positioning marks, and the multiple positioning marks are not located on the same straight line, the multiple positioning marks determine the surface of the box body. The plane where this surface is located is used to determine the parallel relationship with the light-emitting surface of the display module. The position information of the positioning target is determined by its three-dimensional coordinates. By obtaining the three-dimensional coordinate information of the specific position on the positioning mark, the position of the positioning mark in the three-dimensional coordinate system is determined, thereby determining the three-dimensional coordinate position of the box. For example, if the positioning mark is a groove opened on the box body, the position information of the positioning mark is the three-dimensional coordinates of the bottom of the groove of the box body. In this way, by obtaining the coordinates of the bottoms of the multiple grooves of the box, the plane where the box is located is determined, which facilitates subsequent judgments of the parallel relationship between the box and each display module, and facilitates subsequent adjustments of the box and the display module. The alignment relationship.

The present application also relates to a display screen, including a cabinet assembled by the display screen assembly method in any of the above embodiments and at least two display modules.

Please refer to FIGS. 2 and 3. In one of the embodiments, the display screen 10 includes a cabinet 100 and a plurality of display modules 200, and the lamp beads 210 are disposed on the side of the display module 200 facing away from the cabinet 100. The end faces of the lamp beads 210 are located on the same plane. The box body 100 and each display module 200 are aligned and arranged.

The specific steps of the display assembly method are as follows:

The position information of the end portions 211 of the lamp beads 210 on the plurality of display modules 200 is acquired, where the display module 200 has a light-emitting surface 220.

According to the position information of the end 211 of the lamp bead 210 of each display module 200, it is detected whether two adjacent display modules 200 are flush in the first direction ORNT1, wherein the first direction ORNT1 is perpendicular to the light-emitting surface 220.

When two adjacent display modules 200 are flush in the first direction ORNT1, it is detected whether the distance b of the lamp beads 210 at the splicing edge of the two adjacent display modules 200 in the second direction ORNT2 is the same as that of one display module The distance a between two adjacent lamp beads 210 on 200 is equal, wherein the second direction ORNT2 is parallel to the light emitting surface 220.

When the distance between the lamp beads 210 on the splicing edge of two adjacent display modules 200 in the second direction is equal to the distance between two adjacent lamp beads on one display module 200, a plurality of recesses on the cabinet 100 are obtained. Position information of the bottom 111 of the groove 110. According to the position information of the lamp beads of each display module 200 and the position information of the bottom 110 of the plurality of grooves 100 on the box body 110, it is detected whether the box body 100 and each display module 200 are parallel.

When the box 100 is parallel to each display module 200, the distance d between the geometric centers of the plurality of lamp beads 210 of the display module 200 and the geometric centers of the plurality of grooves 110 of the box 100 in the first direction ORNT1 is detected Whether it is equal to the preset distance. When the distance d between the geometric centers of the plurality of lamp beads of the display module and the geometric centers of the plurality of grooves of the box body is equal to the preset distance and aligned with each other, that is, the plurality of lamp beads of the display module The connecting line between the geometric center of the box and the geometric centers of the multiple grooves of the box body is perpendicular to the light emitting surface, and the box body and a plurality of display modules are assembled.

In this embodiment, the lamp beads are arranged on the light-emitting surface, and the spacing between the lamp beads at the splicing place of adjacent display modules is equal to the spacing between two lamp beads on the same display module, so that the entire The distance between the lamp beads on the display screen is equal, thereby reducing the probability of dark and bright lines appearing at the splicing of the display modules on the display screen, and improving the accuracy of the gap between the display modules. The adjustment method of the positional relationship between the box and each display module is to adjust the parallel relationship first and then adjust the spacing relationship. The spacing between the box and each display module is maintained within the specified spacing, so that the combination of the box and the display module In addition to the accuracy of the gap between the display modules, the flatness between the cabinet and the display modules is also improved.

In the above-mentioned display screen, according to the position information of the first preset position of the display module and the first preset distance, the distance between adjacent and even display modules is adjusted so that the distance between each display module can be adjusted Adjust, thereby improving the accuracy of the gap between the display modules. According to the position information of the second preset position and the second preset distance, adjust the distance between the parallel box and the display module, so that the distance between the box and the display module is adjustable, thereby improving the display module The flatness between and the box.

In this embodiment, only a limited number of grooves of the box body need to be processed with high precision to achieve accurate acquisition of the position information of the box body, which is consistent with the need of the prior art to perform the entire mounting surface of the box body. Compared with high-precision processing, it greatly saves the processing cost and processing time of the box.

The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, All should be considered as the scope of this specification.

The above-mentioned embodiments only express a few implementation modes of the present application, and their description is relatively specific and detailed, but they should not be understood as a limitation on the scope of the patent application. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of this application, several modifications and improvements can be made, and these all fall within the protection scope of this application. Therefore, the scope of protection of the patent of this application shall be subject to the appended claims.

Claims

A method for assembling a display screen includes:

Acquiring position information of a plurality of first preset positions on at least two display modules, wherein the display modules have a light-emitting surface;

Detecting whether two adjacent display modules are flush in a first direction according to the position information of the first preset position of each of the display modules, wherein the first direction is perpendicular to the light-emitting surface;

When two adjacent display modules are flush in the first direction, it is detected whether the distance between the first preset positions of the two adjacent display modules in the second direction matches the first preset distance , Wherein the second direction is parallel to the light emitting surface;

When the distance in the second direction between the first preset positions of two adjacent display modules matches the first preset distance, the display screen is assembled.
4. The assembling method according to claim 1, wherein when the distance between the first preset positions of two adjacent display modules in the second direction matches the first preset distance, the display module is assembled Screen, including:

When the distance in the second direction between the first preset positions of two adjacent display modules matches the first preset distance, acquiring position information of a plurality of second preset positions on the cabinet;

According to the position information of the plurality of first preset positions of the display module and the position information of the plurality of second preset positions on the box body, detecting whether the box body and the display module are parallel ；

When the box body is parallel to the display module, detecting whether the distance between the first preset position and the second preset position matches a second preset distance;

When the distance between the first preset position and the second preset position matches the second preset distance, the box body and the plurality of display modules are assembled.
The method for assembling a display screen according to claim 1, wherein the second direction is a connection direction of the first preset positions of two adjacent display modules when the display screen is assembled in place.
The method for assembling a display screen according to claim 1, wherein said acquiring position information of a plurality of first preset positions on at least two display modules comprises:

Obtain position information of the ends of the plurality of lamp beads on at least two display modules.
The method for assembling a display screen according to claim 4, wherein the detecting whether the distance in the second direction between the first preset positions of two adjacent display modules matches the first preset distance comprises:

Obtaining, according to the position information of the ends of the plurality of lamp beads of the display module, the first distance in the second direction of the lamp beads corresponding to the two adjacent display modules;

Detecting whether the first distance matches the first preset distance.
The display screen assembly method according to claim 5, wherein the plurality of lamp beads are arranged at the edge positions of two adjacent display modules, and the second direction is perpendicular to the two adjacent display modules For the splicing edges of the group, the first predetermined distance is the distance between two adjacent lamp beads on one display module.
The display screen assembly method of claim 5, wherein the detecting whether the first pitch matches the first preset pitch comprises:

It is detected whether the first distance is equal to the first preset distance.
The display assembly method according to claim 1, wherein said detecting whether two adjacent display modules are flush in the first direction according to the position information of the first preset position of each of the display modules After that, it also includes:

When two adjacent display modules are not aligned in the first direction, the display module is adjusted according to the position information of the first preset position, so that two adjacent display modules Flush.
The method for assembling a display screen according to claim 1, wherein after detecting whether the distance between the first preset positions of the two adjacent display modules in the second direction matches the first preset distance, further include:

When the distance between the first preset positions of two adjacent display modules in the second direction does not match the first preset distance, move the first preset position in the second direction according to the first preset distance Display modules, so that the distance between two adjacent display modules matches the first preset distance.
The display screen assembly method according to claim 2, wherein the detecting station is based on the position information of the first preset position of each of the display modules and the position information of the plurality of second preset positions on the cabinet. The step of whether the box body and the display module are parallel includes:

According to the position information of the plurality of first preset positions of the display module and the position information of the plurality of second preset positions on the cabinet, the plurality of second preset positions of the display module are detected Whether the distance between a preset position and the plurality of second preset positions on the box body in the first direction is equal, when the plurality of first preset positions of the display module and the When the distances between the plurality of second preset positions on the box body in the first direction are equal, the box body is parallel to the display module; when the plurality of first preset positions of the display module When the distance between the position and the plurality of second preset positions on the box body in the first direction is not equal, the box body and the display module are not parallel.
The display screen assembly method according to claim 2, wherein the detecting station is based on the position information of the first preset position of each of the display modules and the position information of the plurality of second preset positions on the cabinet. The step of whether the box body and the display module are parallel includes:

Corresponding to each second preset position on the box body with a geometric center formed by the plurality of first preset positions on the display module, and detecting the Whether the distance between the geometric center formed by a plurality of first preset positions and the corresponding second preset position in the first direction is equal; when the geometric center formed by the plurality of first preset positions on each display module is equal When the distance between the center and the corresponding second preset position in the first direction is the same, each display module is parallel to the box; when a plurality of first When the distance between the geometric center formed by the preset position and the corresponding second preset position in the first direction is not equal, the display modules are not parallel to the box body.
The display screen assembly method according to claim 11, wherein when the box body is parallel to the display module, it is detected whether the distance between the first preset position and the second preset position is the same as The second preset spacing matching further includes: when the box body is parallel to the display modules, detecting the geometric center formed by the plurality of first preset positions and the geometric center formed by the plurality of second preset positions Whether the spacing between the centers matches the second preset spacing.
The method for assembling a display screen according to claim 2, wherein the step of detecting whether the cabinet is parallel to each display module further comprises:

When the box body is not parallel to each display module, the box body is rotated according to the position information of the first preset position and the position information of the second preset position, so that the box body and the display module The modules are parallel.
2. The display screen assembly method of claim 2, wherein when the box body is parallel to the display module, it is detected whether the distance between the first preset position and the second preset position is Matching with the second preset distance is formed by detecting a geometric center formed by a plurality of the first preset positions and a plurality of the second preset positions when the box body is parallel to the display modules Whether the distance between geometric centers is equal to the second preset distance.
The display screen assembly method according to claim 2, wherein, after the distance between the first preset position and the second preset position matches the second preset distance, the method further comprises: The position information of the first preset position and the position information of the second preset position move the box on a plane parallel to the light emitting surface, so that the box and the display module The spliced display modules are aligned.
The display screen assembly method according to claim 15, wherein the position information according to the first preset position and the position information of the second preset position move on a plane parallel to the light-emitting surface The box is configured to align the display module formed by splicing the box with the display module, and further includes: combining the geometric center formed by the plurality of first preset positions with the plurality of second preset The geometric centers formed by the positions are aligned.
3. The display screen assembly method according to claim 2, wherein said acquiring position information of a plurality of second preset positions on the box body comprises:

Obtain position information of multiple positioning marks on the box.
A display screen, comprising a display screen assembled using the display screen assembly method according to any one of claims 1 to 17.