Test device for display device

Abstract

There is provided a test apparatus for a display apparatus, the test apparatus including: a substrate; an impact unit mounted on the substrate to translate in a first direction, a second direction, and a third direction perpendicular to each other; and a pad unit mounted on the substrate to rotate about each of a first axis perpendicular to an upper surface of the substrate and a second axis perpendicular to the first axis, in which the display device is disposed on the pad unit and includes a flat area and a curved area.

Description

[0001] Cross-references to related applications

[0002] This application is based on and claims priority to Korean Patent Application No. 10-2023-0155892, filed on November 10, 2023, with the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0003] This disclosure generally relates to test apparatus and test methods for display devices. More specifically, this disclosure relates to test apparatus and test methods for display devices, wherein the display device, as the test target, is rotatable along an axis. Background Technology

[0004] Visual information (i.e., data) can be displayed by a display device. Light-emitting diodes (LEDs) can be used by display devices to generate images. Display devices have a wide range of applications, and their quality has been improved through numerous design explorations.

[0005] The durability of a display device can be tested by applying an impact to its surface. In this case, the impact can be applied to various areas of the display device, and the impact result will vary depending on the area to which the impact was applied. These various areas can include curved regions with curved surfaces, particularly complex curved regions with variable curvature. Utility Model Content

[0006] One or more embodiments include a test apparatus for a display device capable of testing the display device by impacting an impactor (e.g., a steel ball) into a curved region (especially a complex curved region). However, this purpose is merely illustrative, and the scope of this disclosure is not limited thereto.

[0007] Additional aspects will be set forth in part in the description which follows and will be apparent in part from the description, or may be understood by practice of the embodiments presented in this disclosure.

[0008] According to one or more embodiments, a test apparatus for a display device includes: a substrate; an impact unit mounted on the substrate to translate upward in a first direction, a second direction, and a third direction perpendicular to each other; and a pad unit mounted on the substrate to rotate about each of a first axis and a second axis, wherein the first axis is perpendicular to an upper surface of the substrate and the second axis is perpendicular to the first axis, wherein the display device is disposed on the pad unit.

[0009] In one embodiment, the display device may include a flat area and a curved area, and the second axis may rotate about the first axis.

[0010] In an embodiment, the test apparatus can further include a support member attached to the base, a rotation member including a first rotation member and a second rotation member, wherein the first rotation member of the rotation member can be connected to the support member and rotatable with respect to the support member, the second rotation member of the rotation member can be connected to the first rotation member and rotatable with respect to the first rotation member, and wherein the pad unit can be disposed on the second rotation member.

[0011] In an embodiment, the pad unit can be mounted on the base to be rotatable about the first axis, the second axis, and the third axis, and the third axis can be perpendicular to the second axis and can extend in a different direction from the first axis.

[0012] In an embodiment, the test apparatus can further include a socket unit rotating with respect to the base about the first axis, and a ball unit partially disposed in the socket unit and rotating about the second axis and the third axis, wherein the pad unit can be disposed on the ball unit.

[0013] In an embodiment, the test apparatus can further include an angle indication unit configured to read an angular position of the pad unit on the first axis or an angular position of the pad unit on the second axis.

[0014] In an embodiment, the test apparatus can further include an angle fixing unit configured to fix the pad unit at a certain angular position.

[0015] In an embodiment, the test apparatus can further include a fixing unit mounted on the pad unit to fixedly attach the display apparatus together with the pad unit.

[0016] In an embodiment, the impact unit can include an impact body disposed to fall toward the display apparatus in a direction of gravity.

[0017] In an embodiment, the pad unit can include a recessed portion disposed in an edge or a corner of the pad unit, and at least a portion of the recessed portion can overlap an edge of the display apparatus.

[0018] According to one or more embodiments, a test method for a display apparatus includes mounting a display apparatus on a test apparatus for the display apparatus, and making an impact body fall on a desired position of the display apparatus, wherein the test apparatus includes a base, an impact unit mounted on the base to be translated in a first direction, a second direction, and a third direction perpendicular to each other, and a pad unit mounted on the base to be rotated about each of a first axis and a second axis, wherein the first axis is perpendicular to an upper surface of the base, and the second axis is perpendicular to the first axis, wherein the display apparatus is disposed on the pad unit.

[0019] In an embodiment, the display apparatus can include a flat area and a curved area, and the second axis can be rotated about the first axis.

[0020] In an embodiment, the test apparatus can further include a support member attached to the base, a rotating member including a first rotating member and a second rotating member, wherein the first rotating member of the rotating member can be connected to the support member and rotatable with respect to the support member, the second rotating member of the rotating member can be connected to the first rotating member and rotatable with respect to the first rotating member, and wherein the pad unit can be disposed on the second rotating member.

[0021] In an embodiment, the pad unit can be mounted on the base to be rotatable about the first axis, the second axis, and the third axis, and the third axis can be perpendicular to the second axis and can extend in a different direction from the first axis.

[0022] In an embodiment, the test apparatus can further include a socket unit rotated about the first axis with respect to the base, and a spherical unit partially disposed in the socket unit and rotated about the second axis and the third axis, and wherein the pad unit can be disposed on the spherical unit.

[0023] In an embodiment, the test method can further include reading an angular position at which the pad unit is disposed on the first axis or an angular position at which the pad unit is disposed on the second axis.

[0024] In an embodiment, the test method can further include fixing the pad unit at a certain angular position.

[0025] In an embodiment, the test apparatus can further include a fixing unit mounted on the pad unit to fixedly attach the display apparatus and the pad unit together.

[0026] In an embodiment, the dropping of the impact body on the desired position of the display apparatus can be achieved by dropping the impact body from a certain height toward the display apparatus in the direction of gravity.

[0027] According to one or more embodiments, a test apparatus for a display apparatus includes a base, a first support member fixedly attached to the base, a second support member movably attached to the first support member to translate in a first direction, an impact unit movably attached to the second support member to translate in a second direction perpendicular to the first direction, a rotation member including a first rotation member and a second rotation member, and a pad unit mounted on the rotation member to rotate about each of a first axis perpendicular to an upper surface of the base and a second axis perpendicular to the first axis, wherein the first rotation member of the rotation member is attached to the base and rotatable with respect to the base, and the second rotation member of the rotation member is attached to the first rotation member and rotatable with respect to the first rotation member, and the impact unit is configured to guide an impact body on a desired position of the display apparatus. BRIEF DESCRIPTION OF DRAWINGS

[0028] The above and other aspects, features, and advantages of certain embodiments of the present disclosure will be more apparent from the following description taken in conjunction with the accompanying drawings, in which:

[0029] Figure 1 is a perspective view schematically illustrating a display apparatus according to an embodiment;

[0030] Figure 2 is an exploded view schematically illustrating each of a display panel and a cover window of a display apparatus according to an embodiment;

[0031] Figure 3 is a perspective view schematically illustrating a display panel of a display apparatus according to an embodiment;

[0032] Figure 4 is a cross-sectional view of the display apparatus taken along line IV-IV' of Figure 1

[0033] Figure 5 schematically illustrates a test method for a display apparatus according to an embodiment;

[0034] Figure 6 is a perspective view illustrating a test apparatus for a display apparatus according to an embodiment;

[0035] Figure 7A , Figure 7B and Figure 7C are cross-sectional views illustrating an impact unit and an operating method thereof according to an embodiment;

[0036] Figure 8 is a perspective view illustrating a rotation unit according to an embodiment;

[0037] Figure 9 is a perspective view of a test apparatus for a display apparatus according to an embodiment;​Figure 8 a cross-sectional view of the rotation unit shown in FIG. 1;

[0038] Figure 10 is a perspective view illustrating a rotation unit according to another embodiment; Figure 8 a cross-sectional view of the rotation unit shown in FIG. 1;

[0039] Figure 11 is a perspective view illustrating a rotation unit according to another embodiment;

[0040] Figure 12 is a perspective view illustrating a rotation unit according to another embodiment; Figure 11 a cross-sectional view of the rotation unit shown in FIG. 1;

[0041] Figure 13 is a perspective view illustrating a rotation unit according to another embodiment;

[0042] Figure 14A is a perspective view illustrating a coupling state of a display apparatus, a pad unit, and a fixing unit according to an embodiment;

[0043] Figure 14B is a perspective view illustrating a coupling state of a display apparatus, a pad unit, and a fixing unit according to another embodiment; and

[0044] Figures 15A to 15E is a perspective view illustrating a processing state of a test method for a display apparatus according to an embodiment. DETAILED DESCRIPTION

[0045] Reference will now be made in detail embodiments, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout. In this regard, the present embodiments can have different forms and should not be construed as being limited to the descriptions set forth herein. Accordingly, the embodiments are merely described below, by referring to the figures, to explain aspects of this description. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. Throughout the disclosure, the expression "at least one of a, b, and c" indicates only a, only b, only c, both a and b, both a and c, both b and c, all of a, b, and c, or variations thereof.

[0046] The present disclosure can include various embodiments and modifications, and specific embodiments of the present disclosure are illustrated in the accompanying drawings and will be described in detail herein. The effects and features of the present disclosure and methods of achieving the same will become apparent by referring to the embodiments as follows described in detail in the following with reference to the accompanying drawings. However, the present disclosure is not limited to the embodiments described below, and can be implemented in various modes.

[0047] Hereinafter, embodiments will be described in detail with reference to the accompanying drawings, and in the following description, like reference numerals will designate like elements and, for the sake of conciseness, redundant description thereof will be omitted.

[0048] It will be understood that when an element such as a layer, region or plate is referred to as being "on" another element, it can be "directly on" the other element or intervening elements can also be present. In addition, the size of the elements in the drawings can be exaggerated for the purpose of illustration. In other words, since the size and thickness of the elements in the drawings are arbitrarily illustrated for the purpose of illustration, the present disclosure is not limited thereto.

[0049] As used herein, the x-axis, y-axis and z-axis are not limited to the three axes of a rectangular coordinate system, and can be interpreted in a broader sense. For example, the x-axis, y-axis and z-axis can be perpendicular to each other, or can represent different directions that are not perpendicular to each other. In other words, the x-direction, y-direction and z-direction are not limited to directions corresponding to the three axes of a rectangular coordinate system, and can be interpreted in a broader sense. For example, the x-direction, y-direction and z-direction can be perpendicular to each other, or can represent different directions that are not perpendicular to each other. In addition, the x-direction can refer to the +x direction and / or the -x direction, the y-direction can refer to the +y direction and / or the -y direction, and the z-direction can refer to the +z direction and / or the -z direction.

[0050] It will be understood that, although terms such as "first" and "second" can be used herein to describe various elements, the elements should not be limited by such terms, and the terms are only used to distinguish one element from another.

[0051] As used herein, the singular forms "a," "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0052] It will be understood that the terms such as "comprise," "include" and "have" used herein indicate the presence of stated features or elements but do not preclude the presence or addition of one or more other features or elements.

[0053] As used herein, "A and / or B" means A, B, or the case in which A and B. In addition, "at least one of A and B" means A, B, or the case in which A and B.

[0054] Figure 1 is a perspective view schematically illustrating a display apparatus according to an embodiment.

[0055] Reference Figure 1According to an embodiment, the display device 1 is a device that displays a moving image or a still image, and is a portable electronic device such as a mobile phone, a smart phone, a tablet personal computer (PC), a mobile communication terminal, an electronic notebook, an electronic book, a portable multimedia player (PMP), a navigation device, or an ultra-mobile PC (UMPC). In addition, the display device 1 can be an electronic device that provides a display screen such as a television, a notebook computer, a monitor, a billboard, or an Internet of Things (IoT) device. Alternatively, the display device 1 can be a wearable device such as a smart watch, a watch phone, a glasses-type display, or a head-mounted display (HMD).

[0056] In an embodiment, the display device 1 can have a rectangular shape in a plan view. In alternative embodiments, the display device 1 can have various shapes including a triangular shape, a square shape, a circular shape, and an elliptical shape. In an embodiment, when the display device 1 has a polygonal shape in a plan view, polygonal corners can be rounded. Hereinafter, for convenience of description, a case in which the display device 1 has a rectangular shape with rounded corners in a plan view is mainly described.

[0057] In an embodiment, the display device 1 can have a short side in an x direction and a long side in a y direction. In another embodiment, in the display device 1, a length of a side of the display device 1 in the x direction and a length of a side of the display device 1 in the y direction can be equal to each other. In another embodiment, the display device 1 can have, for example, a long side in the x direction and a short side in the y direction. For example, each corner where the short side in the x direction and the long side in the y direction meet each other can be rounded with a certain curvature.

[0058] Figure 2 FIG. 1 is a perspective view schematically illustrating a display device according to an embodiment. Figure 3 FIG. 2 is a perspective view schematically illustrating a display panel of the display device according to an embodiment. Figure 4 FIG. 3 is a cross-sectional view of the display device taken along line IV-IV' of FIG. 2. Figure 1

[0059] As depicted in FIG. 1, the display device 1 includes a display panel 10 and a cover window CW disposed on the display panel 10. Figures 2 to 4

[0060] ​​The display panel 10 can include a display area DA having a main display area MDA, side display areas SDA disposed at four sides of the main display area MDA, and corner display areas CDA disposed at four corners of the main display area MDA. The display panel 10 can include a peripheral area PA surrounding the display area DA. The main display area MDA can be an area disposed at a central portion of the display panel 10, and can be a flat area formed without being bent. The main display area MDA can occupy the largest proportion in the display area DA of the display panel 10, and thus can provide the most images. The main display area MDA can include a short side in an x direction and a long side in a y direction, and each corner where the short side and the long side meet each other can have a substantially rounded shape.

[0061] At least a portion of the side display areas SDA can be bent to include a curved surface, and can extend outward from each side of the main display area MDA. The side display areas SDA can include a first side display area SDA1, a second side display area SDA2, a third side display area SDA3, and a fourth side display area SDA4. In another example, at least one or more of the first side display area SDA1, the second side display area SDA2, the third side display area SDA3, and the fourth side display area SDA4 can be omitted. The first side display area SDA1 can be disposed at a first side of the main display area MDA and bent with a certain curvature. The first side display area SDA1 can extend in a -y direction from a lower side of the main display area MDA. In this case, the first side display area SDA1 can be an area disposed at a lower surface of the display panel 10.

[0062] The second side display area SDA2 can be disposed at a second side of the main display area MDA and bent with a certain curvature. The second side display area SDA2 can extend in a +x direction from a right side of the main display area MDA. In this case, the second side display area SDA2 can be disposed at a right surface of the display panel 10.

[0063] The third side display area SDA3 can be disposed at a third side of the main display area MDA and bent with a certain curvature. The third side display area SDA3 can extend in a -x direction from a left side of the main display area MDA. In this case, the third side display area SDA3 can be disposed at a left surface of the display panel 10.

[0064] The fourth side display area SDA4 can be disposed at a fourth side of the main display area MDA and bent with a certain curvature. The fourth side display area SDA4 can extend in a +y direction from an upper side of the main display area MDA. In this case, the fourth side display area SDA4 can be disposed at an upper surface of the display panel 10.

[0065] Each of the first side display area SDA1, the second side display area SDA2, the third side display area SDA3, and the fourth side display area SDA4 can include a curved surface curved with a certain curvature. For example, the first side display area SDA1 and the fourth side display area SDA4 can have curved surfaces curved around a bending axis extending in the x direction, and the second side display area SDA2 and the third side display area SDA3 can have curved surfaces curved around a bending axis extending in the y direction. The curvature of each of the first side display area SDA1, the second side display area SDA2, the third side display area SDA3, and the fourth side display area SDA4 can be equal to each other. However, in another example, the curvature of each of the first side display area SDA1, the second side display area SDA2, the third side display area SDA3, and the fourth side display area SDA4 can be different from each other.

[0066] The corner display area CDA can extend from a corner of the main display area MDA and be curved with a certain curvature. The corner display area CDA can be disposed between the first side display area SDA1, the second side display area SDA2, the third side display area SDA3, and the fourth side display area SDA4. In this example, the display panel 10 can include at least four corner display areas CDA. For example, a first corner display area CDA can be disposed between the first side display area SDA1 and the second side display area SDA2, a second corner display area CDA can be disposed between the first side display area SDA1 and the third side display area SDA3, a third corner display area CDA can be disposed between the second side display area SDA2 and the fourth side display area SDA4, and a fourth corner display area CDA can be disposed between the third side display area SDA3 and the fourth side display area SDA4.

[0067] Since each of the corner display areas CDA can be positioned between two side display areas SDA having curved surfaces curved in different directions, the corner display area CDA can include a curved surface in which curved surfaces curved in various directions are continuously connected. In addition, when the curvatures of adjacent side display areas SDA are different from each other, the curvature of the corner display area CDA can gradually change along the edge of the display apparatus 1. For example, when the curvature of the first side display area SDA1 and the curvature of the second side display area SDA2 are different from each other, the corner display area CDA disposed between the first side display area SDA1 and the second side display area SDA2 can have a curvature that gradually changes according to the position. However, this is merely an example, and is not limited thereto.

[0068] As Figure 3As depicted, the display panel 10 can provide an image using a plurality of main pixels PXm disposed in the main display area MDA, a plurality of side pixels PXs disposed in the side display area SDA, and a plurality of corner pixels PXc disposed in the corner display area CDA. In this case, the plurality of main pixels PXm, side pixels PXs, and corner pixels PXc can be implemented as display devices. Each of the main pixels PXm, side pixels PXs, and corner pixels PXc can include a red sub-pixel, a green sub-pixel, and a blue sub-pixel. Alternatively, each of the main pixels PXm, side pixels PXs, and corner pixels PXc can include a red sub-pixel, a green sub-pixel, a blue sub-pixel, and a white sub-pixel.

[0069] In each of the main display area MDA, the side display area SDA, and the corner display area CDA, a separate image can be provided, or a portion of an image can be provided. As such, since the display panel 10 provides an image in the main display area MDA, the side display area SDA, and the corner display area CDA, the proportion of the display area DA in the display device 1 can increase. That is, in the same size of the display device 1, the area of the peripheral area PA can decrease, and the area of the display area DA can increase.

[0070] The peripheral area PA can be disposed to surround along the periphery of the side display area SDA and the corner display area CDA entirely or partially. The peripheral area PA can be an area in which an image is not disposed, and various lines and driving circuits can be disposed therein. A shielding layer such as a light-shielding member can be provided in the peripheral area PA, and components of the display panel 10 disposed in the peripheral area PA can not be visually recognized.

[0071] As Figure 4 As depicted, the cover window CW can be disposed on the front surface of the display panel 10. In this case, the "front surface" of the display panel 10 can be defined as a surface facing a direction in which the display panel 10 provides an image. For example, in the main display area MDA, the front surface faces the +z direction (i.e., the thickness direction), and the +z direction (i.e., the thickness direction) is the direction in which an image is provided.

[0072] The cover window CW can cover and protect the display panel 10. The cover window CW can have a high transmittance to transmit light emitted from the display panel 10 and a small thickness to minimize the weight of the display device 1. In addition, the cover window CW can have a high rigidity and hardness to protect the display panel 10 from external impact or external force.

[0073] The cover window CW can include a transparent material. The cover window CW can be made of, for example, glass or plastic. In this case, when the cover window CW can include plastic, the cover window CW can be flexible. For example, the cover window CW can include ultra-thin glass whose rigidity is reinforced by a method such as chemical reinforcement or thermal reinforcement In another example, the cover window CW can include colorless polyimide (CPI). In an embodiment, the cover window CW can have a structure in which a flexible polymer layer is disposed on one surface of a glass substrate, or can include only a polymer layer.

[0074] The cover window CW can include a flat portion FP corresponding to the main display area MDA of the display panel 10 and a curved portion CVP corresponding to the side display area SDA and the corner display area CDA. In this example, the flat portion FP can be disposed on the main display area MDA of the display panel 10, and the curved portion CVP can be disposed on the side display area SDA and the corner display area CDA.

[0075] More specifically, the flat portion FP of the cover window CW can be provided as a flat surface, and can overlap the main display area MDA of the display panel 10. The curved portion CVP of the cover window CW includes a curved surface. In this case, the curved portion CVP can have a constant curvature. However, in another example, the curved portion CVP can have a variable curvature. The curved portion CVP can include a first curved portion CVP1 and a second curved portion CVP2. The first curved portion CVP1 can be disposed to overlap the side display area SDA and the corner display area CDA of the display panel 10. The second curved portion CVP2 can be disposed to overlap the peripheral area PA of the display panel 10. The first curved portion CVP1 can be disposed between the flat portion FP and the second curved portion CVP2. Figure 4 It is illustrated that the thickness of the cover window CW is uniform on the flat portion FP and the curved portion CVP. However, in another example, the thickness of the flat portion FP and the thickness of the curved portion CVP can vary, and thus, the thickness of the first curved portion CVP1 and the thickness of the second curved portion CVP2 can be different from each other.

[0076] A light-shielding member (not illustrated herein) can be disposed to overlap the peripheral area PA of the display panel 10 at a portion of the second curved portion CVP2 of the cover window CW. In this case, the light-shielding member can include a light-shielding material. For example, the light-shielding member can include a resin including carbon black, carbon nanotubes, or a black dye. The light-shielding member can block components of the display panel 10 disposed in the peripheral area PA from being visible to a user.

[0077] The display panel 10 can be disposed under a cover window CW. The cover window CW and the display panel 10 can be coupled by an adhesive member (not illustrated herein). The adhesive member can include an optical clear adhesive (OCA) film or an optical clear resin (OCR). In some embodiments, a lower protective film (not illustrated herein) that protects the display panel 10 can be further disposed under the display panel 10.

[0078] Figure 5 A test method for a display apparatus according to an embodiment is schematically illustrated.

[0079] In this case, as depicted in Figure 5 , an impact is applied to a surface of the display apparatus 1 to test the hardness and / or rigidity of the surface of the display apparatus 1, such as a surface of the cover window CW (for example, refer to Figure 4 ). For this purpose, as an example of the impact, an impact body HB can be applied to the surface of the display apparatus 1.

[0080] In an embodiment, gravity can be used so that the impact body HB is applied to the surface of the display apparatus 1. In an embodiment, a force can be applied in a +z direction that can be opposite to gravity, and the impact body HB can be initially positioned above the display apparatus 1 in a -z direction. In an embodiment, the impact body HB can be a steel ball having a certain weight.

[0081] When the impact body HB falls from a certain height in the -z direction toward the surface of the display apparatus 1, the impact body HB can be accelerated toward the display apparatus 1 by gravity, and can impact the surface of the display apparatus 1 at an impact point HP. Thereafter, the impact body HB can rebound from the surface of the display apparatus 1 in a certain direction. After the rebounded impact body HB is removed, a deformation, a damage, a crack, and / or the like that have occurred in the display apparatus 1 due to the impact by the impact body HB at the impact point HP can be observed and recorded to evaluate the hardness and rigidity of the display apparatus 1.

[0082] When the above test is performed, since the impact body HB can move in the gravity direction (-z direction), the position of the impact point HP can be adjusted by appropriately adjusting the initial position of the impact body HB. Accordingly, the impact point HP can be positioned in a region in which the surface of the display apparatus 1 can be flat or curved. When the impact point HP is positioned in a region in which the surface of the display apparatus 1 can be flat (for example, the main display area MDA (refer to Figure 3 ), the impact body HB can rebound in the +z direction. When the impact point HP is positioned in a region in which the surface of the display apparatus 1 is curved (for example, the side display area SDA (refer to Figure 3 ) or the corner display area CDA (refer to Figure 3When the impact body HB impacts the display device 1 at a point HP, the impact body HB can rebound in a certain direction. However, this is merely an example, and the rebound direction can vary according to each situation. Figure 5 FIG. 1 illustrates a perspective view of a display device test apparatus according to an embodiment.

[0083] In the description with reference to Figure 5 , the direction in which the upper surface of the display device 1 faces (e.g., the +z direction) has been described as the opposite direction of gravity; however, this is merely for convenience in description in describing a method for testing the display device 1 using the impact body HB. In the following embodiments described with reference to the following drawings, the display device 1 can form a certain angle with respect to the ground, and the direction in which the lower surface of the display device 1 faces (e.g., the -z direction) can be different from the direction of gravity.

[0084] Figure 6 is a perspective view illustrating a display device test apparatus (i.e., a test apparatus for a display device) according to an embodiment.

[0085] As depicted in Figure 6 , the display device test apparatus 2 includes a base 20, a first support unit 21, a first moving unit 22, a second support unit 23, a second moving unit 24, a third support unit 25, an impact unit 26, a rotating unit 27, a pad unit 28, and a fixing unit 29.

[0086] Other components of the display device test apparatus 2 can be mounted on the upper surface of the base 20. In an embodiment, the base 20 can have a substantially rectangular shape including edges extending in the first direction DR1 and the second direction DR2, respectively. In an embodiment, the base 20 can have a substantially square shape in which the length of the edge extending in the first direction DR1 and the length of the edge extending in the second direction DR2 can be equal to each other. In an embodiment, the upper surface of the base 20 can face the third direction DR3 and can be parallel to the ground. In other words, the third direction DR3 can be a direction perpendicular outward from the ground and can be a direction opposite to the direction of gravity. However, in another example, the base 20 can have a different shape according to the shape of the display device 1.

[0087] The first support unit 21 can be fixedly attached to the base 20. For example, the first support unit 21 can be disposed on an upper surface (or a surface facing the third direction DR3) of the base 20. In an embodiment, the first support unit 21 can have a frame shape overlapping each of edges of the base 20. In an embodiment, the first support unit 21 can include portions extending in the first direction DR1 and the second direction DR2. For example, the first support unit 21 can include a 1-1 support unit 21-1 extending in the first direction DR1 and a 1-2 support unit 21-2 extending in the second direction DR2. In an embodiment, two 1-1 support units 21-1 and two 1-2 support units 21-2 can be disposed on the base 20 to form a frame shape. In an embodiment, a length scale in the second direction DR2 can be indicated on some of the portions of the first support unit 21 (for example, on the 1-2 support unit 21-2). In an embodiment, each of the portions of the first support unit 21 (for example, the 1-1 support unit 21-1 and the 1-2 support unit 21-2) can include a profile, and include a groove disposed on a surface facing a specific direction (for example, the third direction DR3).

[0088] The first moving unit 22 can be movably attached to the first support unit 21. For example, the first moving unit 22 is disposed over an upper surface (or a surface facing the third direction DR3) of the first support unit 21. In this case, the first moving unit 22 can be disposed on the two 1-2 support units 21-2. In an embodiment, the first moving unit 22 can be coupled to the first support unit 21 to translate and move. For example, the first moving unit 22 translates and moves in the second direction DR2 over the 1-2 support units 21-2. In an embodiment, each of the 1-2 support units 21-2 includes a groove extending along the second direction DR2, and each of the first moving units 22 includes a knob bolt. In this case, after the knob bolt of the first moving unit 22 is loosened, the first moving unit 22 can translate and move along the 1-2 support units 21-2. In another case, in order to fix the first moving unit 22 to the 1-2 support units 21-2, the knob bolt can be tightened.

[0089] In another embodiment, the 1-2 support units 21-2 and the first moving unit 22 can include a linear motion (LM) guide (not shown herein). In this case, the 1-2 support units 21-2 can include a rail, and the first moving unit 22 can include a moving block coupled to the rail. In an embodiment, two first moving units 22 can be provided and can be respectively disposed on an edge of the base 20 in the first direction DR1 and an edge of the base 20 in a direction opposite to the first direction DR1. However, in another example, the number of the first moving units 22 can be one.

[0090] The second support unit 23 can be fixedly attached to each of the first moving units 22. In an embodiment, the second support unit 23 can be coupled to the first moving units 22 to move together with the first moving units 22. In an embodiment, the second support unit 23 can be threadedly fastened to the first moving units 22. In an embodiment, the second support unit 23 includes at least one 2-1 vertical support unit 23-1 extending in the third direction DR3. In an embodiment, the 2-1 vertical support unit 23-1 includes a profile. In an embodiment, a plurality of 2-1 vertical support units 23-1 can be provided. For example, the 2-1 vertical support units 23-1 can be provided as many as the first moving units 22, and each of the 2-1 vertical support units 23-1 can be coupled to the first moving unit 22 corresponding thereto. Accordingly, the 2-1 vertical support units 23-1 move together with the first moving units 22 in one direction (for example, the second direction DR2).

[0091] In an embodiment, the second support unit 23 can also include at least one 2-2 horizontal support unit 23-2 extending in the first direction DR1. In an embodiment, the 2-2 horizontal support unit 23-2 can include a profile. In an embodiment, the 2-2 horizontal support unit 23-2 can connect two 2-1 vertical support units 23-1 facing each other. In an embodiment, a plurality of 2-2 horizontal support units 23-2 can be provided. For example, two 2-2 horizontal support units 23-2 spaced apart from each other in the third direction DR3 can be provided and can be connected to two 2-1 vertical support units 23-1 facing each other. That is, one of the 2-2 horizontal support units 23-2 can be attached to one end of the 2-1 vertical support unit 23-1, and the other of the 2-2 horizontal support units 23-2 can be attached to the middle of the 2-1 vertical support unit 23-1. Accordingly, since the 2-2 horizontal support unit 23-2 can be coupled to the 2-1 vertical support unit 23-1, and the 2-1 vertical support unit 23-1 can be coupled to the first moving unit 22, the 2-1 vertical support unit 23-1 and the 2-2 horizontal support unit 23-2 translate and move together with the first moving unit 22 in a certain direction (for example, the second direction DR2). That is, one end of the 2-1 vertical support unit 23-1 can be connected to one end of the 2-2 horizontal support unit 23-2, and the other end of the 2-1 vertical support unit 23-1 can be connected to the first moving unit 22.

[0092] The second moving unit 24 can be coupled to the second support unit 23. In an embodiment, the second moving unit 24 can be disposed on one surface of the 2-2 horizontal support unit 23-2 facing the second direction DR2. In an embodiment, the second moving unit 24 can be coupled to the second support unit 23 to be translated and moved in the first direction DR1. For example, the second moving unit 24 is translated and moved over the 2-2 horizontal support unit 23-2 in the first direction DR1. In an embodiment, the 2-2 horizontal support unit 23-2 includes a slot extending in the first direction DR1, and the second moving unit 24 includes a knob bolt. In this case, the second moving unit 24 can be translated and moved over the 2-2 horizontal support unit 23-2 by loosening the knob bolt of the second moving unit 24, and the second moving unit 24 can be fixed to the 2-2 horizontal support unit 23-2 by tightening the knob bolt.

[0093] In another embodiment, the 2-2 horizontal support unit 23-2 and the second moving unit 24 can include an LM guide. In this case, the 2-2 horizontal support unit 23-2 can include a rail, and the second moving unit 24 can include a moving block coupled to the rail. In an embodiment, a plurality (for example, two) of second moving units 24 can be provided. For example, two second moving units 24 and two 2-2 horizontal support units 23-2 can be provided, and the second moving units 24 can be coupled to the 2-2 horizontal support units 23-2 corresponding thereto, respectively, in the manner described above.

[0094] The third support unit 25 can be connected to the second moving unit 24. In another embodiment, the third support unit 25 can be integrally formed with the second moving unit 24. For example, as shown in FIG. 6, the second moving unit 24 is coupled to the 2-2 horizontal support unit 23-2 by a knob bolt, and a portion protruding in the second direction DR2 among components constituting the second moving unit 24 is understood as the third support unit 25. Figure 6 In an embodiment, the third support unit 25 can be configured to form a substantially circular opening extending in the third direction DR3 at the center thereof. In an embodiment, each of the openings facing the third direction DR3 can be defined in the third support unit 25. In an embodiment, each of the openings includes at least one threaded hole. In an embodiment, a bolt can be positioned in the opening, and a nut can be coupled with the bolt. When the bolt-nut coupling is tightened, the diameter of the circular opening through which the third support unit 25 extends in the third direction DR3 is reduced. Accordingly, the impact unit 26 disposed in the circular opening can be fixed to the third support unit 25.

[0095] In an embodiment, the third support unit 25 can be integrally formed with the second moving unit 24, and thus move together with the second moving unit 24 in the first direction DR1. In addition, the second moving unit 24 can be connected to the second support unit 23, and the second support unit 23 can be connected to the first moving unit 22 to move in the second direction DR2. Accordingly, the third support unit 25 can be translated and moved in the first direction DR1 and the second direction DR2 by the second moving unit 24 and the first moving unit 22.

[0096] The impact unit 26 can be coupled to the third support unit 25. In an embodiment, the impact unit 26 can be coupled to the third support unit 25 to be movable in the third direction DR3. In an embodiment, the impact unit 26 can be disposed in a circular opening formed in the third support unit 25 in the third direction DR3. In an embodiment, the impact unit 26 can be fixed to the third support unit 25 by tightening the above bolt-nut coupling. In an embodiment, by loosening the above bolt-nut coupling, the impact unit 26 can be separated from the inner surface of the circular opening of the third support unit 25 and can be moved in the third direction DR3.

[0097] Through the above process, the third support unit 25 can be moved in the second direction DR2 and the first direction DR1 by the first moving unit 22 and the second moving unit 24, and the impact unit 26 can be moved in the third direction DR3. Accordingly, the impact unit 26 can be translated and moved in the second direction DR2, the first direction DR1, and the third direction DR3 by the first moving unit 22, the second moving unit 24, and the third support unit 25. In an embodiment, the first direction DR1, the second direction DR2, and the third direction DR3 can be understood as three directions perpendicular to each other in a rectangular coordinate system. Accordingly, the impact unit 26 can be understood as being translatable and movable in three directions perpendicular to each other. In an embodiment, the impact unit 26 includes a substantially cylindrical tube. However, in another example, the impact unit 26 includes a groove inside the impact unit 26 to guide a steel ball or an impact body 26-3 (as shown in FIG. 6). Figure 7A

[0098] The rotation unit 27 can be disposed on the base 20. In an embodiment, the rotation unit 27 can be disposed on a central portion of the base 20. In an embodiment, the rotation unit 27 can be disposed in a frame shape similar to the frame shape formed by the first support unit 21. The rotation unit 27 includes a structure configured to rotate about a shaft extending in the third direction DR3.

[0099] ​The pad unit 28 can be disposed on the rotation unit 27. In an embodiment, the pad unit 28 can be coupled to the rotation unit 27 to rotate about the shaft of the rotation unit 27. In an embodiment, the display apparatus 1 can be installed on the pad unit 28 as a test target. In an embodiment, an opening to which the rotation unit 27 is screwed can be defined in the pad unit 28, the pad unit 28 including an opening to which the fixing unit 29 can be screwed.

[0100] The fixing unit 29 can be disposed on the pad unit 28. In an embodiment, the fixing unit 29 can be screwed with the pad unit 28. For example, the fixing unit 29 includes a plurality of openings including a threaded hole and a knob bolt at an inner surface thereof. In an embodiment, the fixing unit 29 and the pad unit 28 can be screwed with each other by setting at least one of the openings of the fixing unit 29 to overlap at least one of the openings of the pad unit 28 and then tightening the knob bolt. Although not illustrated in Figure 6 , a plurality of fixing units 29 can be provided. In an embodiment, the display apparatus 1 can be interposed between the fixing unit 29 and the pad unit 28, and by pressing the display apparatus 1 toward the upper surface of the pad unit 28 by virtue of tightening the knob bolt of the fixing unit 29, the display apparatus 1 can be installed on the pad unit 28.

[0101] As a result, the impact unit 26 can be translated and moved in the first direction DR1, the second direction DR2, and the third direction DR3 by the second moving unit 24, the first moving unit 22, and the third support unit 25. In addition, the display apparatus 1 can be rotatable by the rotation unit 27 while being installed on the pad unit 28, and thus, its angular position can be adjusted.

[0102] Figure 7A 、 Figure 7B and Figure 7C is a sectional view illustrating an impact unit and an operating method thereof according to an embodiment.

[0103] Referring to Figures 7A to 7C , the impact unit 26 includes a guide unit 26-1, a support rod 26-2, and an impact body 26-3. In an embodiment, the impact body 26-3 is the same as the impact body HB described with reference to Figure 5 . In an embodiment, the guide unit 26-1 can be a cylindrical tube as shown in the impact unit 26 in Figure 6 .

[0104] In an embodiment, the guide unit 26-1 can be a substantially cylindrical tube. In an embodiment, the impact body 26-3 can be a steel ball having a certain diameter and weight. In an embodiment, the diameter of the guide unit 26-1 can be greater than the diameter of the impact body 26-3. In an embodiment, the upper and lower sides of the guide unit 26-1 or both ends thereof in the third direction DR3 can be open, and the impact body 26-3 can pass through the guide unit 26-1 in the third direction DR3. In an embodiment, the guide unit 26-1 can include a plurality of slits 26-SL formed at both side surfaces thereof. The slits 26-SL can be spaced apart from each other in the third direction DR3. The slits 26-SL can pass through the side surfaces of the guide unit 26-1, and the outer space and the inner space of the guide unit 26-1 can be connected to each other through the slits 26-SL. In an embodiment, the support rod 26-2 can be shaped to accommodate the slits 26-SL of the guide unit 26-1. In an embodiment, the length of the support rod 26-2 in the first direction DR1 can be greater than the diameter of the guide unit 26-1 so that the support rod 26-2 penetrates the guide unit 26-1 entirely in the first direction DR1.

[0105] As Figure 7A depicted in FIG. 26B, the support rod 26-2 is inserted into one of the slits 26-SL of the guide unit 26-1, and the impact body 26-3 is placed inside the guide unit 26-1 through one end of the guide unit 26-1 in the third direction DR3. In an embodiment, the third direction DR3 is opposite to the direction of gravity. Thus, the impact body 26-3 can move downward (e.g., in the direction of gravity).

[0106] Referring to Figure 7B Since the length of the support rod 26-2 is greater than the diameter of the guide unit 26-1, the support rod 26-2 enters through one of the slits 26-SL of the guide unit 26-1 and exits through the slit 26-SL positioned on the opposite side thereof. In other words, the support rod 26-2 penetrates the guide unit 26-1 in the direction of the diameter of the guide unit 26-1. In an embodiment, the support rod 26-2 is inserted into the guide unit 26-1 before the impact body 26-3 penetrates the guide unit 26-1 in the direction opposite to the third direction DR3. Thus, the support rod 26-2 supports the impact body 26-3 and prevents the impact body 26-3 from falling. In an embodiment, the height (or position in the third direction DR3) at which the impact body 26-3 is placed is adjusted according to the height (or position in the third direction DR3) of the slit 26-SL into which the support rod 26-2 of the guide unit 26-1 is inserted.

[0107] Referring to Figure 7C, the support rod 26-2 inserted into the slit 26-SL of the guide unit 26-1 is removed therefrom. When the support rod 26-2 supporting the impact body 26-3 is removed, the impact body 26-3 falls in a direction opposite to the third direction DR3. Accordingly, the impact body 26-3 passes through one end of the guide unit 26-1 in a direction opposite to the third direction DR3, and falls toward the display apparatus. The subsequent processes can be the same as those shown in Figure 5

[0108] Figure 8 is a perspective view illustrating a rotation unit according to an embodiment.

[0109] Referring to Figure 8 , the rotation unit 27 includes a support member 27-1, a first rotation member 27-2, a second rotation member 27-3, a first angle indication unit 27-4, a second angle indication unit 27-5, and a control handle 27-6.

[0110] The support member 27-1 can be fixedly attached to the base 20 (e.g., refer to Figure 6 ), and can provide a space in which other components of the rotation unit 27 can be disposed. In an embodiment, the support member 27-1 can have a substantially cuboid shape. In an embodiment, the support member 27-1 can include a rounded edge. In an embodiment, the support member 27-1 can include a first support member 27-1A and a second support member 27-1B. In an embodiment, the second support member 27-1B can be disposed on top of the first support member 27-1A. In an embodiment, the support member 27-1 can have the shape of a hollow box. In an embodiment, the second support member 27-1B can be fixedly screwed with the first support member 27-1A. However, in another example, the first support member 27-1A and the second support member 27-1B can be attached together with any method.

[0111] The first rotation member 27-2 can be disposed above the support member 27-1. In an embodiment, the first rotation member 27-2 can be disposed on an upper surface (or a surface facing the third direction DR3) of the second support member 27-1B. In an embodiment, the first rotation member 27-2 can be coupled to the second support member 27-1B to be rotatable about a first axis AX1 which can be along the third direction DR3. In this case, the first axis AX1 can extend in the third direction DR3. In an embodiment, the first rotation member 27-2 can have a U shape when viewed from the first direction DR1. For example, the first rotation member 27-2 can be open in the first direction DR1 and the third direction DR3, as Figure 8 ​The opening direction can also change since the first rotating member 27-2 can rotate about the first axis AX1 in the third direction DR3. However, for ease of description, Figure 8 The first rotating member 27-2 is aligned in the first direction DR1.

[0112] The second rotating member 27-3 can be rotatably coupled to the first rotating member 27-2. In an embodiment, the second rotating member 27-3 can be coupled to the first rotating member 27-2 to be rotatable about a second axis AX2. In an embodiment, the second axis AX2 can rotate about the first axis AX1. Accordingly, the direction in which the second axis AX2 extends can change accordingly. However, for ease of description, Figure 8 The second axis AX2 is illustrated as extending in the second direction DR2. In an embodiment, the second rotating member 27-3 can have a shape similar to the inverted shape of the first rotating member 27-2. In an embodiment, the second rotating member 27-3 can include a 2-1 opening 27-3A that can be screwed with the above-described pad unit 28 (see Figure 6 ).

[0113] In an embodiment, the support member 27-1 can be fixedly attached to the base 20. The first rotating member 27-2 can rotate about the first axis AX1 with respect to the support member 27-1 (or the base 20). The second rotating member 27-3 can rotate about the second axis AX2 with respect to the first rotating member 27-2. Accordingly, the first axis AX1 can be understood as a fixed axis whose orientation does not change, and the second axis AX2 can be understood as a variable axis whose orientation can change as the first rotating member 27-2 rotates.

[0114] The first angle indication unit 27-4 can be disposed on the support member 27-1. In an embodiment, the first angle indication unit 27-4 can be provided between the second support member 27-1B and the first rotating member 27-2. The first angle indication unit 27-4 can indicate a scale and an angle to read an angular position of the first rotating member 27-2 about the first axis AX1 with respect to the support member 27-1. The first angle indication unit 27-4 can be directly formed on the second support member 27-1B, or can be separately formed and then attached together on the second support member 27-1B.

[0115] A second angle indicating unit 27-5 can be disposed on the second rotating member 27-3. In an embodiment, the second angle indicating unit 27-5 can be provided between the first rotating member 27-2 and the second rotating member 27-3. The second angle indicating unit 27-5 can indicate a scale and an angle to read an angular position of the second rotating member 27-3 with respect to the first rotating member 27-2 about the second axis AX2. The second angle indicating unit 27-5 can be directly formed on the second rotating member 27-3, or can be separately formed and then attached together on the second rotating member 27-3.

[0116] A control handle 27-6 can be disposed on an outer surface of the first rotating member 27-2. In an embodiment, the control handle 27-6 can be disposed on an outer surface of the first rotating member 27-2 facing the second direction DR2. However, when the first rotating member 27-2 rotates about the first axis AX1, the surface of the first rotating member 27-2 on which the control handle 27-6 can be provided faces a direction different from the second direction DR2. In an embodiment, the control handle 27-6 is independently moved with respect to the first rotating member 27-2 and fixedly attached to the second rotating member 27-3. Accordingly, by operating the control handle 27-6, an angular position of the second rotating member 27-3 with respect to the first rotating member 27-2 about the second axis AX2 can be controlled. In another embodiment, a structure configured to fix the angular position of the second rotating member 27-3 with respect to the first rotating member 27-2 about the second axis AX2 can be additionally provided.

[0117] In general, the second rotating member 27-3 can be rotatable with respect to the first rotating member 27-2 about the second axis AX2, and the first rotating member 27-2 can be rotatable with respect to the support member 27-1 (or the base 20) about the first axis AX1. Accordingly, the pad unit 28 (see Figure 6 ) that can be attached and coupled to the second rotating member 27-3 can be simultaneously or individually rotated with respect to the support member 27-1 (or the base 20) about the first axis AX1 and the second axis AX2.

[0118] Figure 9 is a cross-sectional view of a rotating unit shown in FIG. 1A according to an embodiment, and Figure 8 is a cross-sectional view of a rotating unit shown in FIG. 1A according to another embodiment. Figure 10 Figure 8 is a cross-sectional view of a rotating unit shown in FIG. 1A according to another embodiment.

[0119] Figure 9 and Figure 10 illustrates a cross-section of the rotating unit 27 taken along a plane parallel to the second direction DR2 and the third direction DR3. When the first rotating member 27-2 rotates about the first axis AX1, the cross-sectional view taken along the plane changes. However, for ease of description,​Figure 9 and Figure 10 Fig. 2 illustrates a case where the second axis AX2 is aligned with the second direction DR2.

[0120] As Figure 9 depicted in FIG. 1, the support member 27-1 and the first rotating member 27-2 are rotatably attached together by the first connecting member 27-7, and the first rotating member 27-2 and the second rotating member 27-3 are rotatably attached together by the second connecting member 27-8 and a third connecting member 27-9 positioned opposite the second connecting member 27-8 in the second direction DR2.

[0121] In an embodiment, the support member 27-1 can have a substantially hollow box shape. In an embodiment, the second support member 27-1B can be disposed on and coupled to the first support member 27-1A to define an interior hollow space. In an embodiment, a support member opening 27-1C through the second support member 27-1B in the third direction DR3 can be defined in the second support member 27-1B.

[0122] In an embodiment, the first rotating member 27-2 can include a first-1 opening 27-2A through the first rotating member 27-2 in the third direction DR3. In an embodiment, the first rotating member 27-2 can include a first-2 opening 27-2B through the first rotating member 27-2 in the second direction DR2. In an embodiment, a plurality of first-2 openings 27-2B can be provided.

[0123] In an embodiment, the second rotating member 27-3 can include a second-1 opening 27-3A through the second rotating member 27-3 in the third direction DR3. In an embodiment, a plurality of second-1 openings 27-3A can be provided, as shown in FIG. 2. In an embodiment, the second rotating member 27-3 can include a second-2 opening 27-3B through the second rotating member 27-3 in the second direction DR2. In an embodiment, a plurality of second-2 openings 27-3B can be provided. Figure 8

[0124] ​In an embodiment, the support member opening 27-1C, the 1-1 opening 27-2A, and the 2-1 opening 27-3A can overlap each other in the third direction DR3. In an embodiment, each of the centers of the support member opening 27-1C, the 1-1 opening 27-2A, and the 2-1 opening 27-3A can be positioned on the same line (e.g., the first axis AX1). In an embodiment, the plurality of 1-2 openings 27-2B and the plurality of 2-2 openings 27-3B overlap each other. In an embodiment, each of the centers of the 1-2 openings 27-2B and the 2-2 openings 27-3B can be positioned on the same line (e.g., the second axis AX2). At least one of the support member opening 27-1C, the 1-1 opening 27-2A, and the 1-2 opening 27-2B, and the 2-1 opening 27-3A and the 2-2 opening 27-3B includes a threaded hole formed at an inner surface thereof.

[0125] The first connecting member 27-7 can connect the first rotating member 27-2 and the second support member 27-1B together so that the first rotating member 27-2 can be rotatable with respect to the support member 27-1 about the first axis AX1. In an embodiment, the first connecting member 27-7 can be partially disposed in the support member opening 27-1C and partially in the 1-1 opening 27-2A. In an embodiment, the first connecting member 27-7 can be fixed to the first rotating member 27-2 and can be spaced apart from an inner surface of the support member opening 27-1C. Accordingly, the first connecting member 27-7 rotates with the first rotating member 27-2 with respect to the second support member 27-1B. In an embodiment, the first connecting member 27-7 can extend along the first axis AX1. In an embodiment, the 1-1 opening 27-2A can include a threaded hole, and the first connecting member 27-7 can include a bolt and nut structure to accommodate the threaded hole of the 1-1 opening 27-2A.

[0126] The second connection member 27-8 and the third connection member 27-9 can connect the second rotating member 27-3 and the first rotating member 27-2 together so that the second rotating member 27-3 can be rotatable with respect to the first rotating member 27-2 about the second axis AX2. In an embodiment, the second connection member 27-8 can pass through one of the plurality of the 1-2 openings 27-2B and one of the plurality of the 2-2 openings 27-3B in the second direction DR2. In an embodiment, the second connection member 27-8 can be fixedly attached to the second rotating member 27-3 and can be spaced apart from each of the inner surfaces of the 1-2 openings 27-2B and the 2-2 openings 27-3B (or the inner surface of the 1-2 openings 27-2B). In an embodiment, the third connection member 27-9 can pass through one of the plurality of the 1-2 openings 27-2B and one of the plurality of the 2-2 openings 27-3B in the second direction DR2. In an embodiment, the third connection member 27-9 can be fixedly attached to the second rotating member 27-3 and can be spaced apart from each of the inner surfaces of the 1-2 openings 27-2B and the 2-2 openings 27-3B (or the inner surface of the 1-2 openings 27-2B). Accordingly, the second connection member 27-8 and the third connection member 27-9 rotate with the second rotating member 27-3 with respect to the first rotating member 27-2. In an embodiment, the second connection member 27-8 and the third connection member 27-9 can extend along the second axis AX2. In an embodiment, each of the 2-2 openings 27-3B can include a threaded hole, and each of the second connection member 27-8 and the third connection member 27-9 can include a bolt and nut structure to accommodate the threaded hole of the 2-2 opening 27-3B corresponding thereto.

[0127] In an embodiment, the second connection member 27-8 can be attached to the control handle 27-6. In an embodiment, the second connection member 27-8 can be fixedly attached to the control handle 27-6. In an embodiment, the control handle 27-6 can include a threaded hole, and the second connection member 27-8 can include a bolt and nut structure to accommodate the threaded hole of the control handle 27-6 therewith. Accordingly, the control handle 27-6, the second connection member 27-8, the third connection member 27-9, and the second rotating member 27-3 rotate integrally about the second axis AX2 together.

[0128] In an embodiment, the angle fixing pad 27-10 can be disposed between the control handle 27-6 and the first rotating member 27-2. In an embodiment, the angle fixing pad 27-10 can include a material having a high coefficient of friction. In an embodiment, the control handle 27-6 can be brought into sufficient close contact with the angle fixing pad 27-10 by tightening the bolt and nut structure of the second connecting member 27-8. In this case, the second rotating member 27-3 can no longer rotate about the second axis AX2 due to the frictional force between the angle fixing pad 27-10 and the control handle 27-6. Accordingly, the angular position of the second rotating member 27-3 on the second axis AX2 can be fixed. In another embodiment, the angle fixing pad 27-10 can be disposed between the first rotating member 27-2 and the second rotating member 27-3. However, in another example, various means for fixing the angular position of the second rotating member 27-3 on the second axis AX2 can be provided.

[0129] In an embodiment, the 2-1st opening 27-3A includes a threaded hole, and the second rotating member 27-3 and the pad unit 28 (see Figure 6 ) are coupled using a bolt for accommodating the threaded hole of the 2-1st opening 27-3A.

[0130] Referring to Figure 10 , the second connecting member 27-8 can traverse the first rotating member 27-2 and the second rotating member 27-3 in the second direction DR2.

[0131] In an embodiment, the second connecting member 27-8 can pass through a plurality of 1-2nd openings 27-2B and a plurality of 2-2nd openings 27-3B simultaneously in the second direction DR2. In an embodiment, the second connecting member 27-8 can be attached to the second rotating member 27-3 and can be rotatable with respect to the first rotating member 27-2. In an embodiment, the control handle 27-6 can be fixedly attached to the second connecting member 27-8. Accordingly, similar to the embodiment shown in Figure 9 , the control handle 27-6, the second connecting member 27-8, and the second rotating member 27-3 can be integrally rotated together about the second axis AX2.

[0132] Figure 11 is a perspective view illustrating a rotating unit according to another embodiment.

[0133] Referring to Figure 11 , the rotating unit 127 includes a ball joint. The rotating unit 127 includes a support member 127-1, a first rotating member 127-2, a second rotating member 127-3, a first angle indicating unit 127-4, and a second angle indicating unit 127-5.

[0134] Support member 127-1 can be fixedly attached to base 20 (e.g., reference). Figure 6 The support member 127-1 is provided with space for other components of the rotating unit 127 to be disposed therein. In an embodiment, the support member 127-1 has a substantially cuboid shape. In this case, the support member 127-1 includes rounded edges. However, in another example, the support member 127-1 may have other shapes, such as triangular or circular shapes. In an embodiment, the support member 127-1 includes a first support member 127-1A and a second support member 127-1B. In an embodiment, the second support member 127-1B may be disposed on top of the first support member 127-1A. In an embodiment, the support member 127-1 may have a hollow box shape. In an embodiment, the second support member 127-1B may be screwed onto the first support member 127-1A. However, in another example, the first support member 127-1A and the second support member 127-1B may be attached together by any method.

[0135] The first rotating member 127-2 may be arranged on the support member 127-1. In an embodiment, the first rotating member 127-2 may be arranged on the upper surface (or the surface facing the third direction DR3) of the second support member 127-1B. In an embodiment, the first rotating member 127-2 may be coupled to the second support member 127-1B to be rotatable about the first axis AX1. In an embodiment, the first axis AX1 may extend in the third direction DR3.

[0136] The first rotating member 127-2 may include a first plate 127-2A, a slot unit 127-2B, and retaining pins 127-2C. The first plate 127-2A may be rotatably connected to a support member 127-1 (e.g., a second support member 127-1B). The slot unit 127-2B may provide space for a spherical unit 127-3B in which a second rotating member 127-3, as described below, may be disposed. In an embodiment, the slot unit 127-2B may be fixedly attached to the first plate 127-2A. Therefore, the first plate 127-2A and the slot unit 127-2B may rotate integrally about a first axis AX1 relative to the support member 127-1 (e.g., the second support member 127-1B). A plurality of retaining pins 127-2C may be coupled to the slot unit 127-2B. In an embodiment, the retaining pins 127-2C may be used to fix the angular position of the second rotating member 127-3.

[0137] The second rotating member 127-3 can be rotatably coupled to the first rotating member 127-2. In an embodiment, the second rotating member 127-3 can be rotatably attached to the first rotating member 127-2 to be rotatable about a second axis AX2 and a third axis AX3. In an embodiment, the second axis AX2 and the third axis AX3 can be perpendicular to each other. In an embodiment, the second axis AX2 and the third axis AX3 can be rotatable about the first axis AX1. Accordingly, a direction in which the second axis AX2 and the third axis AX3 extend respectively changes. However, for convenience of description, Figure 11 It is illustrated that the second axis AX2 extends in the second direction DR2 and the third axis AX3 extends in the first direction DR1.

[0138] The second rotating member 127-3 can include a second plate 127-3A and a spherical unit 127-3B. A 2-1 opening 127-3C and a 2-2 opening 127-3D can be defined in the second plate 127-3A. The spherical unit 127-3B can be partially disposed in the slot unit 127-2B of the first rotating member 127-2. In an embodiment, the spherical unit 127-3B can be fixedly attached to the second plate 127-3A through the 2-1 opening 127-3C. For example, a portion of the spherical unit 127-3B can protrude in the third direction DR3 and can accommodate a shape of the 2-1 opening 127-3C. In an embodiment, the 2-1 opening 127-3C can have a polygonal shape (for example, a square shape), and the second plate 127-3A can not rotate with respect to the spherical unit 127-3B. Accordingly, the second plate 127-3A and the spherical unit 127-3B can be integrally rotated together with respect to the first rotating member 127-2 (for example, the slot unit 127-2B) about the second axis AX2 and / or the third axis AX3. In an embodiment, the second rotating member 127-3 can be screwed with the pad unit 28 (see Figure 6 ) described above through the 2-2 opening 127-3D. However, in another example, the second rotating member 127-3 can be attached to the pad unit 28 through other attachment methods.

[0139] In an embodiment, the support member 127-1 can be fixedly attached to the base 20. The first rotating member 127-2 can be rotatable with respect to the support member 127-1 (or the base 20) about the first axis AX1. The second rotating member 127-3 can be rotatable with respect to the first rotating member 127-2 about the second axis AX2 and / or the third axis AX3. Accordingly, the first axis AX1 can be understood as a fixed axis whose orientation does not change, and each of the second axis AX2 and the third axis AX3 can be understood as a variable axis whose orientation can change.

[0140] The first angle indication unit 127-4 can be disposed above the support member 127-1. In an embodiment, the first angle indication unit 127-4 can be disposed between the second support member 127-1B and the first rotating member 127-2. The first angle indication unit 127-4 can indicate a scale and an angle to indicate an angular position of the first rotating member 127-2 about the first axis AX1 with respect to the support member 127-1. The first angle indication unit 127-4 can be directly formed above the second support member 127-1B, or can be separately formed and then attached together onto the second support member 127-1B.

[0141] The second angle indication unit 127-5 can be disposed above the second rotating member 127-3. In an embodiment, the second angle indication unit 127-5 can be disposed above the spherical unit 127-3B. The second angle indication unit 127-5 can indicate a scale and an angle to read an angular position of the second rotating member 127-3 about the second axis AX2 with respect to the first rotating member 127-2 and an angular position of the second rotating member 127-3 about the third axis AX3 with respect to the first rotating member 127-2. The second angle indication unit 127-5 can be directly formed above the spherical unit 127-3B. When the spherical unit 127-3B is rotated, a portion of the second angle indication unit 127-5 can be covered by the slot unit 127-2B.

[0142] In summary, the second rotating member 127-3 can be rotatable about the second axis AX2 and / or the third axis AX3 with respect to the first rotating member 127-2, and the first rotating member 127-2 can be rotatable about the first axis AX1 with respect to the support member 127-1 (or the base 20). Accordingly, the pad unit 28 (see Figure 6 ) fixedly attached to the second rotating member 127-3 is simultaneously or individually rotated about the first axis AX1, the second axis AX2, and the third axis AX3 with respect to the support member 127-1 (or the base 20).

[0143] Figure 12 is a cross-sectional view of a rotating unit according to an embodiment shown in Figure 11 .

[0144] Figure 12 FIG. 13 illustrates a cross-section of the rotating unit 127 taken along a plane parallel to the second direction DR2 and the third direction DR3. The cross-sectional view taken along the plane changes as the first rotating member 127-2 is rotated about the first axis AX1. However, for ease of description, Figure 12 FIG. 13 illustrates a case where the second axis AX2 is aligned with the second direction DR2.

[0145] Referring to Figure 12The support member 127-1 and the first rotating member 127-2 are attached together by a connection member 127-6.

[0146] In an embodiment, the support member 127-1 can include a first support member 127-1A and a second support member 127-1B, and have a shape of a substantially hollow box. In an embodiment, the second support member 127-1B coupled with the first support member 127-1A can define an internal space. In an embodiment, a support member opening 127-1C through the second support member 127-1B in the third direction DR3 can be defined in the second support member 127-1B.

[0147] In an embodiment, a 1-1 opening 127-2D through the first plate 127-2A in the third direction DR3 can be defined in the first rotating member 127-2. In an embodiment, a 1-2 opening 127-2E through the slot unit 127-2B in the first direction DR1 or the second direction DR2 can be defined in the first rotating member 127-2. In an embodiment, a plurality of 1-2 openings 127-2E can be disposed along a periphery of the slot unit 127-2B. Figure 12 Only the 1-2 opening 127-2E through the slot unit 127-2B in the second direction DR2 is illustrated.

[0148] In an embodiment, the second rotating member 127-3 can include a 2-1 opening 127-3C through the second plate 127-3A in the third direction DR3. In an embodiment, the support member opening 127-1C, the 1-1 opening 127-2D, and the 2-1 opening 127-3C can overlap each other in the third direction DR3. In an embodiment, the support member opening 127-1C, the 1-1 opening 127-2D, and the 2-1 opening 127-3C can be positioned on the same line (e.g., the first axis AX1).

[0149] The connection member 127-6 can connect the first rotating member 127-2 and the second support member 127-1B together so that the first rotating member 127-2 is rotatable with respect to the support member 127-1 about the first axis AX1. In an embodiment, the connection member 127-6 can be partially disposed in the support member opening 127-1C and partially in the 1-1 opening 127-2D. In an embodiment, the connection member 127-6 can be fixedly attached to the first rotating member 127-2 and can be spaced apart from an inner surface of the support member opening 127-1C. Accordingly, the connection member 127-6 can rotate together with the first rotating member 127-2 with respect to the second support member 127-1B. In an embodiment, the connection member 127-6 extends along the first axis AX1. In an embodiment, a threaded hole can be defined in the 1-1 opening 127-2D and the connection member 127-6 can include a bolt and nut structure to accommodate the threaded hole of the 1-1 opening 127-2D. In another embodiment, the connection member 127-6 can be integrally formed with the first plate 127-2A.

[0150] The ball unit 127-3B can be non-rotatably connected to the second plate 127-3A. In an embodiment, the ball unit 127-3B can include a protruding portion shaped to accommodate the 2-1 opening 127-3C. The ball unit 127-3B and the second plate 127-3A can be coupled by accommodating the protruding portion and the 2-1 opening 127-3C to each other.

[0151] A plurality of fixing pins 127-2C can be disposed in the 1-2 openings 127-2E in the second direction DR2. In an embodiment, the number of the 1-2 openings 127-2E and the number of the fixing pins 127-2C can be equal to each other, and each of the fixing pins 127-2C can be coupled to the 1-2 opening 127-2E corresponding thereto. In an embodiment, the 1-2 openings 127-2E include threaded holes, and the fixing pins 127-2C can be bolts.

[0152] In an embodiment, a portion of the ball unit 127-3B can be disposed in the slot unit 127-2B. As the fixing pins 127-2C are released, the ball unit 127-3B can freely rotate in the slot unit 127-2B about the second axis AX2 and / or the third axis AX3. In an embodiment, at least some of the fixing pins 127-2C can be closely adhered and fixed toward the ball unit 127-3B. In this case, the second rotating member 127-3 can be fixed at a corresponding angular position. When the fixing pins 127-2C can be separated from the ball unit 127-3B, the angular position of the second rotating member 127-3 can be adjusted by rotating the ball unit 127-3B again.

[0153] Figure 13 is a perspective view illustrating a cushion unit according to an embodiment.

[0154] As described above with reference to Figure 13 , the cushion unit 28 includes a long side and a short side. The long side extends in the y direction, and the short side extends in the x direction.

[0155] The cushion unit 28 can have a substantially rectangular shape with rounded corners, and have a shape including a recessed portion disposed at each corner and a recessed portion disposed on the long side. In an embodiment, the cushion unit 28 can include first recessed portions 28-1 disposed at the four corners. In an embodiment, the cushion unit 28 can include second recessed portions 28-2 disposed at the long side and recessed in the x direction. Although not illustrated in Figure 13 , the cushion unit 28 can include additional recessed portions disposed at the short side and recessed in the y direction.

[0156] Referring to Figure 3 and Figure 13 together, the first recessed portions 28-1 of the cushion unit 28 overlap the corner display areas CDA of the display panel 10 described above in the z direction. In an embodiment, the second recessed portions 28-2 of the cushion unit 28 overlap the side display areas SDA (e.g., the second side display area SDA2 and / or the third side display area SDA3) of the display panel 10 described above in the z direction.

[0157] The cushion unit 28 can include a plurality of first coupling portions 28-3 disposed along the long side. In an embodiment, the first coupling portions 28-3 can be openings passing through the cushion unit 28 in the z direction. In an embodiment, screw holes for screw-fastening the fixing unit 29 (see Figure 14A ) can be defined in the first coupling portions 28-3, and details will be described below. Figure 13 A pair of first coupling portions 28-3 in the x direction is illustrated in a total of six. However, the present disclosure is not limited thereto. That is, the number of the first coupling portions 28-3 can be more or less than six pairs.

[0158] The second coupling portion 28-4 can be disposed at a central portion of the cushion unit 28. In an embodiment, the second coupling portion 28-4 can be an opening passing through the cushion unit 28 in the z direction. In an embodiment, the second coupling portion 28-4 overlaps the 2-1 opening 27-3A (see Figure 8 ) or the 2-2 opening 127-3D (see Figure 11 ) described above, and is connected together by a screw.

[0159] Figure 14A is a perspective view illustrating a coupling state of a display apparatus, a cushion unit, and a fixing unit according to an embodiment.

[0160] When referring to Figure 14A , the display device 1 is disposed on an upper surface (e.g., a z-direction surface) of the pad unit 28.

[0161] In an embodiment, at least a portion of each of the corners of the display device 1 can overlap a corresponding one of the first recessed portions 28-1 of the pad unit 28. A side surface portion of the display device 1 in the y-direction can overlap the second recessed portion 28-2 of the pad unit 28. Accordingly, a portion of the corners and a portion of the side surface of the display device 1 can not be supported by the pad unit 28 thereunder. Accordingly, for example, when an impact body impacts the corners of the display device 1, not only a crack of the display device 1 but also a degree of bending deformation of the display device 1 can be observed. Accordingly, not only a hardness of the display device 1 but also a bending stress and a tensile strength of the display device 1 can be evaluated.

[0162] The fixing unit 29 can be disposed on the display device 1 and the pad unit 28. In other words, the display device 1 can be interposed between the pad unit 28 and the fixing unit 29. The fixing unit 29 can include a fixing bar 29-1 and a fastening unit 29-2. In an embodiment, the fixing bar 29-1 can extend in a short side direction of the pad unit 28 or in the x-direction. In an embodiment, a length of the fixing bar 29-1 in the x-direction can be greater than a length of the display device 1 in the x-direction.

[0163] In an embodiment, the fixing bar 29-1 can include a pair of threaded holes which can be disposed at both ends in the x-direction and overlap a pair of first coupling portions 28-3 of the pad unit 28. The fastening unit 29-2 can include a pair of knob bolts, and each knob bolt can be coupled to the threaded hole of the fixing bar 29-1 and the first coupling portion 28-3 at the same time. When the fastening unit 29-2 is coupled and then tightened, the fixing bar 29-1 can press and fix the display device 1 onto the pad unit 28. Figure 14A is illustrated to which the fixing unit 29 is fixedly attached to one of the first coupling portions 28-3 positioned in the y-direction.

[0164] Figure 14B is a perspective view illustrating a coupled state of a display device, a pad unit, and a fixing unit according to another embodiment.

[0165] Referring to Figure 14B , a plurality of fixing units 29 is provided. In an embodiment, the plurality of fixing units 29 is coupled to the pad unit 28 at different positions. Compared to the embodiment illustrated in Figure 14A , the plurality of fixing units 29 is coupled to the pad unit 28 at different positions. Figure 14B is illustrated to which the fixing unit 29 is fixedly attached to one of the first coupling portions 28-3 positioned in the y-direction.

[0166] As Figure 14A and Figure 14B shown, the positions, number, and arrangement intervals of the first coupling portions 28-3 can be variously modified, and the arrangement positions and number of the fixing units 29 can also be variously modified. Furthermore, in another embodiment, a buffer material (not shown) can be arranged between the fixing rods 29-1 and the display apparatus 1 to prevent the display apparatus 1 from being damaged due to pressure applied to the display apparatus 1 by the fixing units 29.

[0167] Figures 15A to 15E is a perspective view illustrating a processing state of a test method for a display apparatus according to an embodiment.

[0168] Hereinafter, for convenience of description, each of operations of a test method for a display apparatus will be described based on a display apparatus test apparatus using the rotating unit 27 shown in Figure 8 However, the operations described below can be similarly applied to a display apparatus test apparatus using the rotating unit 127 shown in Figure 11

[0169] Referring to Figure 15A , the angular position of the pad unit 28 is adjusted.

[0170] In an embodiment, the rotating unit 27 can be operated to rotate the pad unit 28 about the first axis AX1 and / or the second axis AX2. The long side direction (e.g., the y direction) of the pad unit 28 can be different from the first direction DR1. The short side direction (e.g., the x direction) of the pad unit 28 can be different from the second direction DR2. The upper surface direction (e.g., the z direction) of the pad unit 28 can be different from the third direction DR3. The angular position of the pad unit 28 can vary according to an angle at which the impact body is to impact the pad unit 28.

[0171] In another embodiment, when the display apparatus test apparatus 2 includes the rotating unit 127 shown in Figure 11 , the pad unit 28 is rotated about the first axis AX1, the second axis AX2, and / or the third axis AX3 (see Figure 11 ).

[0172] Referring to Figure 15B , the display apparatus 1 that is a test target is mounted on the pad unit 28.

[0173] In an embodiment, the upper surface of the display apparatus 1 can be parallel to the upper surface of the pad unit 28. In other words, both the upper surface of the display apparatus 1 and the upper surface of the pad unit 28 can face the z direction. In an embodiment, the long side of the display apparatus 1 can be parallel to the y direction. In an embodiment, the short side of the display apparatus 1 can be parallel to the x direction. The method of mounting the display apparatus 1 on the pad unit 28 using the fixing unit 29 is similar to that described with reference to​Figure 13 , Figure 14A and Figure 14B The methods used to describe them are the same.

[0174] Figure 15B A fixing unit 29 is illustrated connected to a pad unit 28; however, this disclosure is not limited thereto. In another embodiment, with Figure 14B Similar to the illustration, multiple fixing units 29 are used to fasten the pad unit 28 to the display device 1.

[0175] Figure 15A and Figure 15B The illustration shows the display device 1 being installed after the angle of the pad unit 28 has been adjusted. However, in another embodiment, the display device 1 can be installed on the pad unit 28 first, and then the angle between the display device 1 and the pad unit 28 can be adjusted.

[0176] When reference Figure 15C At the same time, the position of the impact unit 26 is also adjusted.

[0177] The impact unit 26 can be translated and moved in the second direction DR2 using the first moving unit 22. The impact unit 26 can be translated and moved in the first direction DR1 using the second moving unit 24. Subsequently, the impact unit 26 can be translated and moved in the third direction DR3 using the third supporting unit 25. In this way, the impact unit 26 can be appropriately moved in the first direction DR1, the second direction DR2, and the third direction DR3 to overlap with a desired point (e.g., a corner) of the display device 1. For example, the position of the impact unit 26 can be adjusted such that the centerline (not shown) of the impact unit 26 can be positioned above a portion (e.g., a corner) of the display device 1. Therefore, the position of the impact unit 26 can be freely arranged on the display device 1.

[0178] When reference Figure 15D When the guide unit 26-1 of the impact unit 26 is positioned on the desired location (e.g., a corner) of the display device 1, the support rod 26-2 and the impact body 26-3 can be installed. The process of installing the support rod 26-2 and the impact body 26-3 in the guide unit 26-1 can be described with reference to the above. Figure 7A and Figure 7BThe described process is the same. In this case, the height (or position in the third direction DR3) of the impact body 26-3 before dropping is adjusted according to the position of the slit 26-SL into which the support bar 26-2 is inserted. Accordingly, the height (or position in the third direction DR3) of the impact body 26-3 before dropping the impact body 26-3 can vary according to the third direction DR3 position of the guide unit 26-1 coupled to the third support unit 25 and the position of the slit 26-SL. The energy or force of the impact that the impact body 26-3 exerts on the display apparatus 1 and the momentum obtained at the same time as dropping the impact body 26-3 can be determined according to the dropping distance thereof, and the dropping distance can vary according to the height of the impact body 26-3 before dropping the impact body 26-3. In summary, the energy or force to be exerted to the display apparatus 1 can vary according to the position of the impact body 26-3 in the third direction DR3 in association with the guide unit 26-1, the third support unit 25, and the position of the slit 26-SL into which the support bar 26-2 is inserted.

[0179] When referring to Figure 15E , the impact body 26-3 is dropped.

[0180] When the support bar 26-2 is removed, the impact body 26-3 placed on the support bar 26-2 can drop toward the display apparatus 1 (for example, toward the corner of the display apparatus 1) and can impact the display apparatus 1. Thereafter, the impact body 26-3 can rebound in a certain direction. After dropping the impact body 26-3, the damage exerted can be observed and determined by observing the display apparatus 1.

[0181] The test method for a display apparatus according to the embodiment can not only adjust the dropping position and height of the impact body 26-3, but also adjust the angle at which the impact body 26-3 is incident on the display apparatus 1. For this purpose, the impact body 26-3 can drop in the direction of gravity, and the angular position of the display apparatus 1 can be variously changed by the rotating units 27 and 127. Accordingly, the display apparatus 1 can be impacted in various positions and angles, and not only the dropping distance and the impact position can be confirmed, but also the difference in damage according to the impact angle can be confirmed.

[0182] As described above, according to the embodiment, a test apparatus and a test method for a display apparatus can be provided, which can not only adjust the area to which the impact body of the display apparatus impacts, but also adjust the angle at which the impact body impacts the display apparatus. However, the scope of the present disclosure is not limited to these effects.

[0183] It is to be understood that the embodiments described herein are to be considered in a descriptive sense only and not for purposes of limitation. Descriptions of features or aspects within each embodiment should typically be considered as being applicable to other similar features or aspects in other embodiments. While one or more embodiments have been described with reference to the figures, it will be understood by those of ordinary skill in the art that various changes in form and details can be made therein without departing from the spirit and scope as defined by the following claims.

Claims

1. A testing device for a display device, characterized in that, The testing equipment includes: Base; Impact unit, the impact unit being mounted on the substrate for upward translation in a first direction, a second direction, and a third direction perpendicular to each other; and A pad unit, mounted on the substrate, is rotatable about each of a first axis and a second axis, wherein the first axis is perpendicular to the upper surface of the substrate, and the second axis is perpendicular to the first axis. The display device is arranged on the pad unit.

2. The testing equipment according to claim 1, characterized in that, The display device includes a flat area and a curved area, and The second axis rotates about the first axis.

3. The testing equipment according to claim 1, characterized in that, Further includes: Supporting members attached to the substrate; as well as The rotating component includes a first rotating component and a second rotating component. The first rotating member of the rotating member is connected to the supporting member and is rotatable relative to the supporting member. The second rotating member of the rotating member is connected to the first rotating member and is rotatable relative to the first rotating member, and The pad unit is arranged on the second rotating member.

4. The testing equipment according to claim 1, characterized in that, The pad unit is mounted on the substrate and is rotatable about the first axis, the second axis, and the third axis. The third axis is perpendicular to the second axis and extends in a different direction than the first axis.

5. The testing equipment according to claim 4, characterized in that, Further includes: A slot unit that rotates about the first axis relative to the substrate; as well as A spherical unit, which is partially disposed in the slot unit and rotates about the second axis and the third axis, The pad unit is arranged on the spherical unit.

6. The testing equipment according to claim 1, characterized in that, Further includes: An angle indicating unit is configured to read the angle position of the pad unit on the first axis or the angle position of the pad unit on the second axis.

7. The testing equipment according to claim 1, characterized in that, Further includes: An angle fixing unit is configured to fix the pad unit at a specific angle position.

8. The testing equipment according to claim 1, characterized in that, Further includes: A fixing unit is mounted on the pad unit to securely attach the display device to the pad unit.

9. The testing equipment according to claim 1, characterized in that, The impact unit includes an impact body, which is configured to fall toward the display device along the direction of gravity.

10. The testing equipment according to claim 1, characterized in that, The pad unit includes a recessed portion disposed in the edge or corner of the pad unit, and At least a portion of the recessed portion overlaps with the edge of the display device.

Images