Screen attaching and fixing support

Abstract

The utility model relates to a screen attaching and fixing support which comprises a first support used for being placed on one side of a display assembly in the first direction and comprising a first supporting part and a first wrapping part, the first supporting part is used for abutting against the bottom of the display assembly, and the first wrapping part is used for abutting against one side of the display assembly in the first direction; the second support is used for being placed on one side of the second direction perpendicular to the first direction of the display assembly and comprises a second supporting part and a second wrapping part, the second supporting part is used for abutting against the bottom of the display assembly, and the second wrapping part is used for abutting against one side of the second direction of the display assembly; the first support and the second support form an L-shaped structure. Through the L-shaped structural design of the first support and the second support, the screen fitting fixing support can comprehensively support and fix the display assembly, the accuracy and efficiency of screen fitting are greatly improved, and the whole support is simple in structure and easy to operate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of screen bonding, in particular to a screen bonding fixing support. BACKGROUND

[0002] In the full bonding field of large-size LCM (liquid crystal module), it is particularly difficult to directly bond the LCM (liquid crystal module) due to various technical challenges of the LCM (liquid crystal module) itself. The LCM (liquid crystal module) is prone to deformation during manufacturing and transportation, and combined with the existence of the iron frame GAP (gap) and the limitation of the OC (liquid crystal panel) pressure resistance, the industry generally faces bonding difficulties, resulting in MURA (display defects such as various stains), light leakage, bubbles and other adverse phenomena after bonding, which seriously affects the final display effect and quality of the product.

[0003] At present, in order to cope with these challenges, the industry mainly adopts the following two bonding schemes: the first scheme is to purchase a customized OC (liquid crystal panel) and then assemble it after bonding. However, this method not only requires a customized OC (liquid crystal panel), but also needs to find an assembly plant that can design a matching BLU (backlight unit), increasing the cost and complexity of the process. The design and production of customized OC (liquid crystal panel) and matching BLU (backlight unit) not only consumes time and effort, but also is expensive, which is not conducive to mass production and cost control.

[0004] The second scheme is to purchase an LCM (liquid crystal module) first, then disassemble the OC (liquid crystal panel) and BLU (backlight unit) in the LCM (liquid crystal module), bond the OC (liquid crystal panel) separately, and then reassemble the LCM (liquid crystal module). However, the OC (liquid crystal panel) structure is relatively fragile, and the disassembly and re-bonding process is prone to damage, increasing production costs. At the same time, the disassembly and reassembly process also increases the production difficulty and time cost.

[0005] In summary, the above bonding schemes have the problems of large loss, poor display effect, and high bonding cost. INVENTION CONTENTS

[0006] Therefore, it is necessary to provide a screen bonding fixing support to solve the problems of large loss, poor display effect, and high bonding cost existing in the prior art.

[0007] A screen bonding fixing support comprises:

[0008] A first support is used to be placed on one side of the display assembly in the first direction, comprising a first supporting part and a first wrapping part, the first supporting part is used to abut on the bottom of the display assembly, and the first wrapping part is used to abut on one side of the display assembly in the first direction;

[0009] The second support is arranged on one side of the display assembly in a second direction perpendicular to the first direction, and comprises a second supporting part and a second wrapping part, the second supporting part is arranged to abut against the bottom of the display assembly, and the second wrapping part is arranged to abut against one side of the display assembly in the second direction.

[0010] The first support and the second support form an L-shaped structure.

[0011] In one embodiment, the first supporting part and the first wrapping part are arranged in a lengthwise manner.

[0012] In one embodiment, the first supporting part is arranged to extend in the second direction, and the first wrapping part is arranged to extend in a direction perpendicular to the first direction.

[0013] In one embodiment, the first supporting part and the first wrapping part are arranged in an integrated manner.

[0014] In one embodiment, the included angle between the first supporting part and the first wrapping part is 90 degrees.

[0015] In one embodiment, the first supporting part and the first wrapping part are both plate-shaped structures, and the contact surfaces of the first supporting part and the first wrapping part with the display assembly are provided with a cushioning material.

[0016] In one embodiment, the surface of the first wrapping part away from the display assembly is provided with a plurality of threaded holes, and the first wrapping part is screwed with the display assembly through the threaded holes.

[0017] In one embodiment, the surface of the first wrapping part away from the display assembly is provided with a plurality of limiting holes arranged at intervals with the threaded holes, and the limiting holes are formed by being recessed outward from the surface of the display assembly.

[0018] In one embodiment, the first direction is the length direction of the display assembly, and a plurality of the first supports are arranged at intervals on one side of the display assembly in the length direction.

[0019] The second direction is the width direction of the display assembly, and the second support is arranged on one side of the display assembly in the width direction.

[0020] In one embodiment, the second supporting part and the second wrapping part are plate-shaped structures, and the second supporting part and the second wrapping part are arranged perpendicularly; the second supporting part is arranged to extend in the first direction, and the second wrapping part is arranged to extend in a direction perpendicular to the second direction.

[0021] The screen pasting fixing support can realize overall support and fixation of the display assembly through the L-shaped structure design of the first support and the second support, greatly improves the accuracy and efficiency of screen pasting, and the whole support structure is simple and easy to operate. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a top view schematic diagram of the screen pasting fixing support.

[0023] Figure 2 It is a structural schematic diagram of the screen pasting fixing support.

[0024] Figure 3 It is a local enlarged schematic diagram of the screen pasting fixing support.

[0025] Figure 4 It is a structural schematic diagram of the first support.

[0026] Figure 5 It is a structural schematic diagram of the second support.

[0027] In the figure: 1, first support; 11, first supporting part; 12, first wrapping part; 13, threaded hole; 14, limiting hole;

[0028] 2, second support; 21, second supporting part; 22, second wrapping part;

[0029] 3, display assembly. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below. In the following description, a lot of specific details are set forth in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0031] In the description of the present application, if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the present application.

[0032] In addition, the terms "first", "second", and the like, if any, are used herein for descriptive purposes only and should not be construed as indicating or implying relative importance or identifying the number of the indicated technical features. Therefore, a feature defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "a plurality of" appears, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0033] In the present application, unless otherwise explicitly specified and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be interpreted broadly. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] In the present application, unless otherwise explicitly specified and limited, if the first feature is described as "on" or "under" the second feature, etc., it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be the first feature directly above or obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" and "below" the second feature can be the first feature directly below or obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0035] It should be noted that if an element is referred to as "fixed to" or "provided on" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for illustrative purposes and do not represent the only implementation.

[0036] Referring to Figure 1 , Figure 2 and Figure 3 , Figure 1 , Figure 2 and Figure 3 are respectively the structural schematic diagram and the local enlarged schematic diagram of the screen fitting fixing support provided in an embodiment of the present application.

[0037] Reference Figure 1 An embodiment of the present application provides a screen fitting fixing support, which comprises a first support 1 and a second support 2.

[0038] Specifically, the first support 1 is used to be placed on one side of the display assembly 3 in the first direction, and comprises a first supporting part 11 and a first wrapping part 12. The first supporting part 11 is used to abut against the bottom of the display assembly 3, and the first wrapping part 12 is used to abut against one side of the display assembly 3 in the first direction. The second support 2 is used to be placed on one side of the display assembly 3 in the second direction perpendicular to the first direction, and comprises a second supporting part 21 and a second wrapping part 22. The second supporting part 21 is used to abut against the bottom of the display assembly 3, and the second wrapping part 22 is used to abut against one side of the display assembly 3 in the second direction. The first support 1 and the second support 2 form an L-shaped structure.

[0039] In the specific implementation process, the display assembly 3 is placed on a horizontal workbench, and the bottom edge thereof is aligned with the first supporting part 11 of the first support 1 and the second supporting part 21 of the second support 2. The first support 1 is slid along the first direction of the display assembly 3, such as the length direction of the display assembly 3, to a position until the first wrapping part 12 completely wraps the corresponding side surface of the display assembly 3, and it is ensured that the first supporting part 11 stably abuts against the bottom of the display assembly 3. The second support 2 is moved along the second direction perpendicular to the first direction, such as the width direction, to a position so that the second wrapping part 22 closely fits the other side surface of the display assembly 3, and at the same time, the second supporting part 21 also stably abuts against the bottom of the display assembly 3. At this time, an L-shaped structure is formed between the first support 1 and the second support 2, which effectively limits the movement of the display assembly 3 in two main directions, and improves the stability of the display assembly 3.

[0040] In one of the embodiments, the first supporting part 11 is provided as a flat and rigid structure for directly abutting against the bottom edge of the display assembly 3. The material of the first supporting part 11 can be selected from metal or high-strength plastic to ensure sufficient supporting force.

[0041] In one of the embodiments, the first wrapping part 12 extends from one end of the first supporting part 11 to form a wrapping structure closely fitted with the side surface of the display assembly 3, which prevents the display assembly 3 from moving or shaking in the first direction and ensures the stability of the fitting process. The inner side of the first wrapping part 12 can be equipped with soft cushioning materials such as silica gel strips, etc. to reduce the friction and damage to the side surface of the display assembly 3.

[0042] In one of the embodiments, the second supporting part 21 is similar to the first supporting part 11, and the second supporting part 21 is also a flat and rigid structure, but it is arranged in the second direction perpendicular to the first direction for abutting against the other side of the bottom of the display assembly 3.

[0043] In one of the embodiments, the second wrapping part 22 extends from one end of the second supporting part 21 to form a wrapping structure closely adhering to the side of the display assembly 3 in the second direction. The second wrapping part 22 is the same as the first wrapping part 12, and the inner side of the second wrapping part 22 is also equipped with soft cushioning material to provide additional protection and stability.

[0044] As described above, through the L-shaped structural design of the first support 1 and the second support 2, the screen-adhering fixing support in the present embodiment can realize comprehensive support and fixation of the display assembly 3, greatly improving the accuracy and efficiency of screen-adhering. Moreover, the entire support structure is simple and easy to operate.

[0045] In combination with Figure 4 as shown, Figure 4 is a structural schematic diagram of the first support 1 provided in an embodiment of the present application. In some embodiments, the first supporting part 11 is longitudinally arranged.

[0046] Specifically, the first supporting part 11 is longitudinally arranged, so that the first supporting part 11 can extend along the bottom edge of the display assembly 3 to provide sufficient support area. In the present embodiment, the first supporting part 11 is arranged in extension in the second direction perpendicular to the first direction, that is, the first supporting part 11 extends in the width direction of the display assembly 3.

[0047] In one of the embodiments, the first wrapping part 12 is longitudinally arranged, and the first wrapping part 12 is arranged in extension perpendicular to the first direction; the first wrapping part 12 is arranged at an angle with the first supporting part 11.

[0048] Specifically, the first wrapping part 12 is also longitudinally arranged, but its extension direction is different from that of the first supporting part 11. In the present embodiment, the first wrapping part 12 is arranged in extension perpendicular to the first direction, that is, it forms a certain angle with the first supporting part 11. This design enables the first wrapping part 12 to tightly wrap one side edge of the display assembly 3.

[0049] Further, the first wrapping part 12 is connected with the first supporting part 11, and the connection therebetween can be direct connection, that is, the first wrapping part 12 is integrally arranged with the first supporting part 11 or connected through a connecting piece. Preferably, the first supporting part 11 is integrally arranged with the first wrapping part 12, and they are a continuous structure made of the same material, which not only simplifies the manufacturing process, but also improves the overall integrity and stability of the structure. In the present embodiment, the first supporting part 11 is arranged at an angle with the first wrapping part 12, and preferably at a 90-degree angle, forming a right-angle structure, so that the first support 1 can more stably support and fix the display assembly 3.

[0050] In one of the embodiments, the first supporting part 11 and the first wrapping part 12 are both plate-like structures.

[0051] Specifically, the first support part 11 and the first wrapping part 12 are both plate-shaped structures with sufficient rigidity and strength to support the display assembly 3. At the same time, in order to reduce friction and damage to the display assembly 3, a cushioning material is provided on the contact surface of the first support part 11 and the first wrapping part 12 with the display assembly 3. This cushioning material can be a soft silicone strip, a foam pad or other similar materials.

[0052] As mentioned above, the screen fitting fixing bracket in the embodiment realizes the stable fixation of the display assembly 3 by reasonably designing the shape, size and extension direction of the first support part 11 and the first wrapping part 12. At the same time, through the integral setting and the addition of the buffer structure, the practicability of the bracket and the protection of the display assembly 3 are further improved.

[0053] In one of the embodiments, the surface of the first wrapping part 12 away from the display assembly 3 is provided with a plurality of threaded holes 13.

[0054] Specifically, the surface of the first wrapping part 12 away from the display assembly 3, i.e. the surface facing away from the display assembly 3, is provided with a plurality of threaded holes 13. These threaded holes 13 are used to be screwed with the display assembly 3, so as to realize the stable connection of the first wrapping part 12 with the display assembly 3.

[0055] In one of the embodiments, the surface of the first wrapping part 12 away from the display assembly 3 is provided with a plurality of limiting holes 14 spaced apart from the threaded holes 13.

[0056] Specifically, on the surface of the first wrapping part 12 away from the display assembly 3, in addition to the threaded holes 13, a plurality of limiting holes 14 spaced apart from the threaded holes 13 are also provided. These limiting holes 14 are formed by recessing outward from the surface close to the display assembly 3, which are used to provide additional positioning and fixing functions.

[0057] Further, the limiting holes 14 can be used in cooperation with corresponding limiting structures, such as limiting pins, limiting columns, etc., to ensure that the first wrapping part 12 can be correctly aligned before screwing, preventing misalignment or movement during the screwing process.

[0058] In one of the embodiments, a plurality of first brackets 1 are spaced apart along the length direction of the display assembly 3. This means that each first bracket 1 is located on one side of the length direction of the display assembly 3, and they maintain a certain interval between them to adapt to display assemblies 3 of different lengths or provide multiple fixing points.

[0059] Further, the second bracket 2 is arranged on one side of the width direction of the display assembly 3. This means that the second bracket 2 is arranged perpendicularly to the first bracket 1, and together they form a two-dimensional fixing frame to support and fix the display assembly 3 comprehensively.

[0060] As described above, through the cooperation of the threaded holes 13 and the limiting holes 14, the first wrapping part 12 can be more stably connected with the display assembly 3, ensuring that no displacement or shaking occurs during the screen fitting process. The plurality of first supports 1 are arranged at intervals along the length direction of the display assembly 3, and the second support 2 is arranged in the width direction, so that the fixing support can adapt to display assemblies 3 of different sizes and shapes, improving its versatility and practicality. The first wrapping part 12 is screwed with the display assembly 3, making the installation and disassembly process more convenient and fast, without the need to use complex tools or processes.

[0061] In combination Figure 5 as shown, Figure 5 is a structural schematic diagram of the second support 2 provided in an embodiment of the present application. In some embodiments, the second support part 21 and the second wrapping part 22 are both plate-like structures, and the second support part 21 is arranged perpendicularly to the second wrapping part 22.

[0062] Specifically, the second support part 21 is a plate-like structure with sufficient rigidity and strength to support the weight of the display assembly 3. The second support part 21 is arranged to extend in the first direction, i.e., the length direction of the display assembly 3, ensuring that it can cover the corresponding edge of the display assembly 3.

[0063] Further, the second wrapping part 22 is also a plate-like structure, but its extension direction is perpendicular to the second support part 21. In this embodiment, the second wrapping part 22 is arranged to extend in the second direction, i.e., the width direction of the display assembly 3, forming an L-shaped structure that closely fits on one side of the display assembly 3. The second wrapping part 22 is integrally arranged with the second support part 21, and the included angle between the second wrapping part 22 and the second support part 21 is 90 degrees, ensuring the stability and firmness between the two.

[0064] In one of the embodiments, a buffer material is arranged on the inner side of the second support part 21, i.e., the side in contact with the display assembly 3. This buffer material can be foam, rubber, silicone, etc., used to reduce friction and collision between the second support part 21 and the display assembly 3, protecting the display assembly 3 from damage.

[0065] In one of the embodiments, threaded holes 13 and limiting holes 14 are arranged at intervals on the side of the second wrapping part 22 facing away from the display assembly 3, i.e., the surface away from the display assembly 3. The threaded holes 13 are used to connect the second wrapping part 22 with the display assembly 3 through screws. The limiting holes 14 are used in cooperation with corresponding limiting structures, such as limiting pins, limiting columns, etc., to ensure correct positioning of the second wrapping part 22 before connection and prevent misplacement during connection.

[0066] As described above, the vertical arrangement of the second support part 21 and the second wrapping part 22 and the design of the plate-shaped structure enable the second support 2 to closely fit on one side of the display assembly 3, providing stable support and fixation. At the same time, the arrangement of the cushioning material further enhances its protective effect on the display assembly 3. The arrangement of the threaded hole 13 enables the second wrapping part 22 to be conveniently connected or disassembled with the display assembly 3 without the need to use complex tools or processes. The limiting hole 14 ensures correct positioning before connection and prevents misalignment during the connection process, improving the accuracy and efficiency of installation.

[0067] In the present embodiment, the above-mentioned screen fitting and fixing support is applied in the fitting process of the display assembly 3. Among them, the fitting process of the display assembly 3 includes:

[0068] First, a protective film is covered on the surface of the display assembly 3 to prevent scratches or contamination in the subsequent processing process. The optical glue is evenly applied between the display assembly 3 and the liquid crystal module, and the optical glue is scraped flat using a scraper to ensure that a good bonding interface is formed between the two. The display assembly 3 coated with optical glue is combined with the liquid crystal module, and the optical glue is cured by heating or ultraviolet irradiation, etc., so as to be firmly bonded together. The cured optical glue is inspected to ensure that it is bubble-free, impurity-free and firmly bonded.

[0069] Secondly, the liquid crystal module is disassembled from the original frame, such as an iron frame, in order to carry out the subsequent fitting operation. The disassembled liquid crystal module is accurately aligned with the display assembly 3, and a preliminary pre-fitting operation is carried out to ensure that the positional relationship between the two is correct. The pre-fitted display assembly 3 and the liquid crystal module are flipped to the appropriate angle or position using a jig in order to carry out the subsequent vacuum pumping operation. The flipped display assembly 3 and the liquid crystal module are placed in a vacuum device for vacuum pumping treatment to remove air and bubbles between the two. OCR (optical transparent resin) glue is supplemented around the display assembly 3 and the liquid crystal module to enhance the bonding strength and prevent moisture and dust from entering. The display assembly 3 and the liquid crystal module supplemented with OCR glue are subjected to pressure treatment to further remove bubbles and ensure firm bonding.

[0070] Then, the screen fitting and fixing support is used for fixation, wherein the first support part 11 of the first support 1 abuts against the bottom of the display assembly 3, and the first wrapping part 12 abuts against one side of the display assembly 3 in the length direction; the second support part 21 of the second support 2 abuts against the bottom of the display assembly 3, and the second wrapping part 22 abuts against one side of the display assembly 3 in the width direction; the first support 1 and the second support 2 form an L-shaped structure to provide stable support and fixation.

[0071] Finally, the display assembly 3 after lamination is left to stand for a period of time at room temperature to ensure that the OCR and optical cements are fully cured. The display assembly 3 after standing is subjected to visual inspection to ensure that it is free of scratches, bubbles and is firmly adhered. The display assembly 3 is subjected to electrical performance testing to ensure that it is functioning properly and meets design requirements. The display assembly 3 after testing and electrical testing is packaged for subsequent shipping and use.

[0072] Any technical features in the above-described embodiments can be combined, and for the sake of brevity, not all possible combinations are described, however, any combination of technical features should be considered as within the scope of the present disclosure.

[0073] The above-described embodiments are merely representative of several embodiments of the present application, and the description is relatively specific and detailed, but should not be construed as limiting the scope of the patent application. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of the present application. Therefore, the scope of the patent of the present application should be subject to the appended claims.

Claims

1. A screen-attaching fixing support, characterized by, The application relates to a display assembly fixing device. The first support (1) is arranged on one side of the display assembly (3) in a first direction and comprises a first supporting part (11) and a first wrapping part (12), wherein the first supporting part (11) is arranged to abut against the bottom of the display assembly (3), and the first wrapping part (12) is arranged to abut against one side of the display assembly (3) in the first direction. The second support (2) is arranged on one side of the display assembly (3) in a second direction perpendicular to the first direction and comprises a second supporting part (21) and a second wrapping part (22), wherein the second supporting part (21) is arranged to abut against the bottom of the display assembly (3), and the second wrapping part (22) is arranged to abut against one side of the display assembly (3) in the second direction. The first support (1) and the second support (2) form an L-shaped structure.

2. The screen-attaching fixing stand according to claim 1, characterized by The first supporting part (11) and the first wrapping part (12) are arranged in a longitudinal manner.

3. The screen attachment fixture of claim 2, wherein, The first supporting part (11) is arranged to extend along the second direction, and the first wrapping part (12) is arranged to extend along a direction perpendicular to the first direction.

4. The screen attachment fixture of claim 3, wherein, The first supporting part (11) and the first wrapping part (12) are arranged in an integral manner.

5. The screen attachment fixture of claim 4, wherein, The included angle between the first supporting part (11) and the first wrapping part (12) is 90 degrees.

6. The screen attachment fixed bracket of claim 2, wherein, The first supporting part (11) and the first wrapping part (12) are both plate-shaped structures, and the contact surfaces of the first supporting part (11) and the first wrapping part (12) and the display assembly (3) are provided with buffer materials.

7. The screen attachment fixture of claim 6, wherein, The surface of the first wrapping part (12) away from the display assembly (3) is provided with a plurality of threaded holes (13), and the first wrapping part (12) is screwed with the display assembly (3) through the threaded holes (13).

8. The screen attachment fixture of claim 7, wherein, The surface of the first wrapping part (12) away from the display assembly (3) is provided with a plurality of limiting holes (14) arranged at intervals with the threaded holes (13), and the limiting holes (14) are formed by being recessed outward from the surface of the display assembly (3).

9. The screen attachment fixed bracket of claim 1, wherein, The first direction is the length direction of the display assembly (3), and a plurality of first supports (1) are arranged at intervals on one side of the display assembly (3) in the length direction. The second direction is the width direction of the display assembly (3), and the second support (2) is arranged on one side of the display assembly (3) in the width direction.

10. The screen attachment fixed bracket of claim 1, wherein, The second supporting part (21) and the second wrapping part (22) are plate-shaped structures, and the second supporting part (21) and the second wrapping part (22) are arranged perpendicularly; the second supporting part (21) is arranged to extend along the first direction, and the second wrapping part (22) is arranged to extend along a direction perpendicular to the second direction.

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