Clamp and impact test method using the clamp

Abstract

The present disclosure relates to a clamp and an impact test method using the same. The clamp includes a main frame including a plurality of plates each having a first surface to which a display module is attached and a second surface opposite the first surface, a bezel frame combined with the main frame and surrounding at least a portion of the main frame in a plan view, a hinge combined with the second surfaces of the plurality of plates, connecting adjacent ones of the plurality of plates, and capable of fixing an unfolded state of the display module, and a folding fixing portion combined with the bezel frame and capable of fixing a folded state of the display module.

Description

Technical Field

[0001] This disclosure generally relates to fixtures and impact testing methods using the fixtures. More specifically, this disclosure relates to fixtures integrated with a display module and impact testing methods using the fixtures. Background Technology

[0002] With the development of information technology, display devices are becoming increasingly important as a connection medium between users and information. For example, the use of display devices such as liquid crystal displays (LCDs), organic light-emitting diode (OLEDs), plasma display panels (PDPs), and quantum dot displays is increasing.

[0003] Recently, with the latest technological advancements in display devices, various types of electronic devices are being developed. For example, foldable flexible electronic devices and foldable display devices are being developed. Flexible electronic devices and foldable electronic devices, which can be transformed into various shapes, are easy to carry and can improve user convenience.

[0004] Because foldable electronic devices operate in various modes, an environment similar to the environmental conditions under which foldable electronic devices operate in various modes is required for durability assessment of the display module. Summary of the Invention

[0005] One implementation provides a fixture that is combined with a display module to create a practical use environment for the display module that operates in multiple modes.

[0006] The implementation provides an impact testing method that uses a fixture to evaluate defects that occur in the real-world use environment of a display module operating in multiple modes.

[0007] One embodiment provides an electronic device including a display module, wherein an impact test is performed using a fixture.

[0008] The fixture according to an embodiment of the present disclosure includes: a main frame including a plurality of plates, each of the plurality of plates having a first surface on which a display module is attached and a second surface opposite to the first surface; a frame frame coupled to the main frame and surrounding at least a portion of the main frame in a plan view; a hinge coupled to the second surface of the plurality of plates, connecting adjacent plates among the plurality of plates and capable of fixing the display module in an unfolded state; and a folding fixing portion coupled to the frame frame and capable of fixing the display module in a folded state.

[0009] In an embodiment, the fixture may further include a gap adjustment section, which is combined with the frame and adjusts the gap between the multiple plates.

[0010] In one embodiment, the gap adjustment portion may include a first gap adjustment portion having a straight shape and a second gap adjustment portion having a Z-shape.

[0011] In one embodiment, the hinge may include a first hinge and a second hinge spaced apart from each other. The first width of the first hinge and the second width of the second hinge may be different from each other.

[0012] In an implementation, the hinge may include multiple engaging portions.

[0013] In one embodiment, the folding fixing part may have a U-shape.

[0014] In an embodiment, the display module may include a first display area, a second display area, a third display area, a peripheral area surrounding at least a portion of the first to third display areas in a plan view, a first folded area between the first and second display areas, and a second folded area between the second and third display areas. Multiple panels may correspond to the first to third display areas respectively. A frame may correspond to the peripheral area.

[0015] In one implementation, the display module can fold outward in a first folding region and inward in a second folding region. The hinge may include a first hinge corresponding to the first folding region and a second hinge corresponding to the second folding region.

[0016] In one embodiment, the fixture may further include an attachment guide defining a plurality of placement slots corresponding to a plurality of plates, the plurality of plates being placed on the attachment guide.

[0017] In one implementation, when multiple plates are placed on the attachment guide, the second surfaces of the multiple plates can contact the attachment guide.

[0018] An impact testing method according to an embodiment of the present disclosure includes: setting a fixture, the fixture including a main frame comprising a plurality of plates, a side frame, a hinge, and a folding fixing portion; attaching a display module to a first surface of the plurality of plates; combining the side frame with the main frame to surround at least a portion of the main frame in a plan view; combining the hinge with a second surface of the plurality of plates opposite to the first surface to connect adjacent plates among the plurality of plates, thereby forming a first falling body including a display module fixed in an unfolded state; causing the first falling body to collide with an impact plate; folding the side frame and the display module attached to the plurality of plates; combining the folding fixing portion with the side frame to form a second falling body including a display module fixed in a folded state; and causing the second falling body to collide with an impact plate.

[0019] In one embodiment, the fixture may also include a gap adjustment section for adjusting the gap between the multiple plates.

[0020] In one implementation, the method may further include combining the gap adjustment portion with the frame after folding the frame and the display module.

[0021] In one embodiment, when the display module included in the second falling body is fixed in a fully folded state, the multiple plates of the main frame included in the second falling body can be substantially parallel to each other.

[0022] In one embodiment, when the display module included in the second falling body is fixed in an incompletely folded state, the multiple plates of the main frame included in the second falling body may not be substantially parallel to each other.

[0023] In an implementation, the method may further include removing the hinge after the first falling body has formed.

[0024] In one implementation, the hinge may include multiple engaging portions, and the hinge may bend together with the display module within the folded bezel frame and display module.

[0025] In an embodiment, the display module may include a first display area, a second display area, a third display area, a peripheral area surrounding at least a portion of the first to third display areas in a plan view, a first folded area between the first and second display areas, and a second folded area between the second and third display areas. The display module may fold outward in the first folded area and inward in the second folded area. The hinge may include a first hinge corresponding to the first folded area and a second hinge corresponding to the second folded area.

[0026] In one embodiment, the collision of the first falling object with the impact plate may include causing each of the upper surface, lower surface, side surface, front surface, and rear surface of the first falling object to collide with the impact plate. The collision of the second falling object with the impact plate may include causing each of the upper surface, lower surface, side surface, front surface, and rear surface of the second falling object to collide with the impact plate.

[0027] An electronic device according to an embodiment of the present disclosure includes: a display module in which an impact test is performed using a fixture; and a processor for transmitting image data signals and inputting control signals to the display module. The fixture includes: a main frame comprising a plurality of plates, each of the plurality of plates having a first surface attached to the display module and a second surface opposite to the first surface; a frame bezel coupled to the main frame and surrounding at least a portion of the main frame in a plan view; a hinge coupled to the second surfaces of the plurality of plates, connecting adjacent plates and capable of securing the display module in an unfolded state; and a folding fixing portion coupled to the frame bezel and capable of securing the display module in a folded state.

[0028] According to embodiments of the present disclosure, the fixture can be combined with a display module to change the shape of the display module. The display module can be folded into a Z-shape by folding outward relative to a first folding axis and inward relative to a second folding axis spaced apart from the first folding axis.

[0029] The drop body formed by combining the fixture and the display module can have a setting environment similar to that of an electronic device operating in multiple usage modes (e.g., a foldable electronic device). That is, the fixture can be used to evaluate defects that occur in the actual use environment of a display module operating in multiple usage modes. Attached Figure Description

[0030] The illustrative, non-limiting embodiments will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings.

[0031] Figure 1 This is a perspective view showing an impact testing apparatus according to an embodiment of the present disclosure.

[0032] Figure 2A and Figure 2B It is shown by Figure 1 A three-dimensional image of a falling object evaluated by an impact testing device.

[0033] Figure 3 This is an exploded perspective view showing a fixture according to an embodiment of the present disclosure.

[0034] Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 It shows that Figure 3 A diagram illustrating the method of combining the fixture with the display module.

[0035] Figure 11 , Figure 12 , Figure 13 , Figure 14 , Figure 15 , Figure 16 and Figure 17 It shows that Figure 3 A diagram illustrating the method of combining the fixture with the display module.

[0036] Figure 18 This is an exploded perspective view showing a fixture according to an embodiment of the present disclosure.

[0037] Figure 19 and Figure 20 It shows that Figure 18 A diagram illustrating the method of combining the fixture with the display module.

[0038] Figure 21 and Figure 22 This is a cross-sectional view illustrating some steps of an impact testing method according to an embodiment of the present disclosure.

[0039] Figure 23 This is a block diagram of an electronic device according to an embodiment of the present disclosure.

[0040] Figure 24 It is shown Figure 23 The figure shows an example of an electronic device implemented as a foldable electronic device. Detailed Implementation

[0041] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, unless the context clearly indicates otherwise, “a,” “an,” “the,” and “at least one” do not indicate a limitation of quantity and are intended to include both the singular and the plural. For example, unless the context clearly indicates otherwise, “an element” has the same meaning as “at least one element.” “At least one” should not be construed as limited to “a” or “an.” “Or” means “and / or.” As used herein, the term “and / or” includes any and all combinations of one or more of the relevant listed items. It will also be understood that, when used in this specification, the terms “comprises” and / or “comprising” or “includes” and / or “including” specify the presence of the stated features, areas, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, areas, integrals, steps, operations, elements, components, and / or groups thereof.

[0042] It will be understood that although the terms “first,” “second,” “third,” etc., may be used herein to describe various elements, components, regions, layers, and / or parts, these elements, components, regions, layers, and / or parts should not be limited by these terms. These terms are used only to distinguish one element, component, region, layer, or part from another. Therefore, without departing from the teachings herein, “first element,” “first component,” “first region,” “first layer,” or “first part” discussed below may be referred to as a second element, second component, second region, second layer, or second part.

[0043] As used herein, “about” or “substantially equal” includes the stated values ​​and means within an acceptable range of deviation of the particular value as determined by a person of ordinary skill in the art, taking into account the measurement in question and the errors associated with the measurement of the particular quantity (i.e., limitations of the measurement system). For example, “substantially parallel” can mean within one or more standard deviations, for example, forming 2 degrees or less.

[0044] In the following, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. The same reference numerals are used for the same parts in the drawings, and redundant descriptions of the same parts will be omitted.

[0045] Figure 1 This is a perspective view showing an impact testing apparatus according to an embodiment of the present disclosure. Figure 2A and Figure 2B It is shown by Figure 1 A three-dimensional image of a falling object evaluated by an impact testing device.

[0046] In this specification, a plane may be defined by a first direction DR1 and a second direction DR2 intersecting the first direction DR1. For example, the first direction DR1 and the second direction DR2 may be perpendicular to each other. A direction perpendicular to the plane may be a third direction DR3. In other words, the third direction DR3 may be perpendicular to each of the first direction DR1 and the second direction DR2.

[0047] refer to Figure 1 The impact testing apparatus ITA according to embodiments of the present disclosure may include clamps CMP, support SPT and impact plate IMP.

[0048] The clamping CMP can grip a falling object FB. The clamping CMP can grip the falling object FB by applying a clamping force, and can release the clamping force applied to the falling object FB by a predetermined action to allow the falling object FB to fall. For example, the clamping CMP can allow the falling object FB to fall in the opposite direction to the third direction DR3.

[0049] The drop object (FB) can be an object subjected to a drop impact test by an impact testing apparatus (ITA) to assess whether a defect has occurred. The drop object FB may include a display module. That is, in this embodiment, the impact testing apparatus (ITA) can be a device used to assess whether a display module included in the drop object FB has a defect due to a fall-induced impact. For example, the display module may be a display module used in small and medium-sized products such as tablet PCs, laptops, smartphones, game consoles, car navigation systems, computer monitors, etc. However, this disclosure is not necessarily limited to this.

[0050] In one implementation, the display module included in the falling FB can be a component included in a foldable electronic device having multiple usage modes. That is, the impact testing equipment (ITA) can be an impact testing device capable of evaluating each of the multiple usage modes of the foldable electronic device.

[0051] The support member SPT can be connected to the clamp CMP. That is, the clamp CMP can be connected to the upper part of the support member SPT and can be positioned at a predetermined height from the impact plate IMP. The height of the support member SPT can be selected according to the actual usage environment of the electronic device. For example, the height of the support member SPT can be selected according to the actual usage environment of small or medium-sized electronic devices. However, this disclosure is not necessarily limited to this, and the height of the support member SPT can be varied according to different embodiments.

[0052] An impact plate (IMP) defines the impact surface (IMS) of a falling object (FB). The impact plate (IMP) can comprise a rigid material. For example, an impact plate (IMP) can comprise granite or metal.

[0053] In one embodiment, the impact testing equipment ITA may further include a control unit for controlling the operation of the clamp CMP and a height adjustment unit for adjusting the height of the support SPT. The control unit can control the operation of the clamp CMP to apply or release clamping force.

[0054] Further reference Figure 2A and Figure 2B The falling object FB dropped by the impact testing equipment ITA can include a first falling object FB1 and a second falling object FB2. That is, the impact testing equipment ITA can drop either the first falling object FB1 or the second falling object FB2 in a single impact test. In other words, the impact testing equipment ITA can be a device that drops the first falling object FB1 to evaluate the impact of the first falling object FB1 and then drops the second falling object FB2 to evaluate the impact of the second falling object FB2.

[0055] Each of the first falling body FB1 and the second falling body FB2 may include a clamp (JG, see below). Figure 3 The display module DM, which is combined with the fixture, is included in each of the first drop body FB1 and the second drop body FB2. The display module DM can be the same display module operating in different usage modes. For example, the display module DM included in the first drop body FB1 can be in an unfolded state, and the display module DM included in the second drop body FB2 can be in a folded state. Reference will be made below. Figure 3 It is described in detail.

[0056] The fixture may include a main frame 100, a frame 300, a hinge 400, a folding and fixing part 500, and a gap adjustment part 600. The fixture can be combined with a display module DM. Figure 2A As shown, the clamp can fix the display module DM in its unfolded state. (See below for reference.) Figures 4 to 10 It will be described in detail. Furthermore, as... Figure 2B As shown, by changing the shape of the display module DM, the clamp can fix the folded state of the display module DM. The following will refer to... Figures 11 to 17 It is described in detail.

[0057] Figure 3 This is an exploded perspective view showing a fixture according to an embodiment of the present disclosure.

[0058] refer to Figure 3 The clamp JG may include a main frame 100, an attachment guide 200, a frame 300, a hinge 400, a folding fixing part 500, and a gap adjustment part 600. The clamp JG can be combined with the display module DM. For example, the clamp JG can be configured to create a setup environment similar to when the display module DM is applied to an actual electronic device by combining with the display module DM. The clamp JG can fix the display module DM in its unfolded state. Furthermore, by changing the shape of the display module DM, the clamp JG can fix the display module DM in its folded state.

[0059] The display module DM can be a component included in a foldable electronic device. The display module DM can be flexible and can be easily bent or folded. The display module DM can include display areas DA1, DA2, and DA3, as well as a peripheral area PA.

[0060] Each of the display areas DA1, DA2, and DA3 can be defined as an area that displays an image by generating light or adjusting the transmittance of light provided from an external light source. The display areas DA1, DA2, and DA3 may include a first display area DA1, a second display area DA2, and a third display area DA3 spaced apart from each other.

[0061] The peripheral region PA may not display an image. The peripheral region PA may be located around the display regions DA1, DA2, and DA3. For example, the peripheral region PA may surround at least a portion of the display regions DA1, DA2, and DA3 in a plan view. As used herein, a "plan view" is a view in the thickness direction of the fixture JG (i.e., the third direction DR3).

[0062] In an embodiment, the display module DM may further include a first folded region FA1 folded along a first folding axis FX1, and a second folded region FA2 folded along a second folding axis FX2 spaced apart from the first folding axis FX1. The first folded region FA1 and the second folded region FA2 can display images. The first folded region FA1 may be located between a first display region DA1 and a second display region DA2 in a plan view. The second folded region FA2 may be located between the second display region DA2 and a third display region DA3 in a plan view.

[0063] In this embodiment, the display module DM can be folded outward relative to the first folding axis FX1 and inward relative to the second folding axis FX2. The display module DM can be folded outward in the first folding region FA1 and inward in the second folding region FA2. That is, the first display region DA1 and the second display region DA2 can be folded relative to the first folding axis FX1 so that they do not face each other. In other words, the display module DM can be folded relative to the first folding axis FX1 such that the rear surfaces of the display module DM face each other. Furthermore, the second display region DA2 and the third display region DA3 can be folded relative to the second folding axis FX2 so that they face each other. Therefore, the display module DM can be folded into a Z-shape. However, this disclosure is not necessarily limited to this, and the display module DM can also be folded inward relative to the first folding axis FX1 and outward relative to the second folding axis FX2.

[0064] When the display module DM is folded, it can be folded in the first folding region FA1 with a first radius of curvature and in the second folding region FA2 with a second radius of curvature. In embodiments, the first and second radii of curvature can be different from each other. For example, the first radius of curvature can be larger than the second radius of curvature. However, this disclosure is not necessarily limited to this, and the first radius of curvature can be smaller than the second radius of curvature. The first and second radii of curvature can be varied according to different embodiments.

[0065] The main frame 100 may include a plurality of plates 110, 120, and 130 arranged in one direction. For example, plates 110, 120, and 130 may include a first plate 110, a second plate 120, and a third plate 130 arranged in the first direction DR1. Each of plates 110, 120, and 130 may have a first surface (e.g., a front surface) and a second surface (e.g., a rear surface) opposite to the first surface. The first surfaces of plates 110, 120, and 130 may be attached to the display module DM. The main frame 100 may function similarly to a housing covering the rear surface of the display module DM when it is applied to an actual electronic device.

[0066] Plates 110, 120, and 130 may correspond to display areas DA1, DA2, and DA3 of the display module DM, respectively. For example, the first plate 110 may correspond to the first display area DA1, the second plate 120 may correspond to the second display area DA2, and the third plate 130 may correspond to the third display area DA3. For example, each of plates 110, 120, and 130 may have a rectangular planar shape. However, this disclosure is not necessarily limited thereto, and the planar shape of each of plates 110, 120, and 130 may vary depending on the planar shape of the display areas DA1, DA2, and DA3 of the display module DM. As used herein, the planar shape may be a shape in a planar view, and "A corresponds to B" may mean that A and B overlap each other.

[0067] The main frame 100 can be mounted on the attachment guide 200. In an embodiment, the attachment guide 200 can define placement slots LH corresponding to the plates 110, 120, and 130 of the main frame 100, respectively. That is, the plates 110, 120, and 130 of the main frame 100 can be placed in the placement slots LH, respectively. When the display module DM is attached to the first surface of the plates 110, 120, and 130, the plates 110, 120, and 130 can be placed on the attachment guide 200. That is, the second surface of the plates 110, 120, and 130 can contact the attachment guide 200. In an embodiment, the attachment guide 200 can be omitted.

[0068] The bezel frame 300 can be combined with the main frame 100. When the bezel frame 300 is combined with the main frame 100, the bezel frame 300 can surround at least a portion of the main frame 100 in a plan view. The bezel frame 300 can correspond to the peripheral area PA of the display module DM. The bezel frame 300 can function similarly to a housing covering the peripheral area PA of the display module DM when the display module DM is applied to an actual electronic device.

[0069] Hinges 400 can be coupled to the main frame 100. For example, hinges 400 can be coupled to a second surface (e.g., a rear surface) of plates 110, 120, and 130. In an embodiment, hinges 400 can have a rectangular planar shape. Hinges 400 can be connected to the hinge axis of each pair of adjacent plates in the first plate 110, second plate 120, and third plate 130, and can connect adjacent plates. For example, hinges 400 can be connected to the hinge axis of each of the first plate 110 and second plate 120, and can connect the first plate 110 and second plate 120. For example, hinges 400 can be connected to the hinge axis of each of the second plate 120 and third plate 130, and can connect the second plate 120 and third plate 130. In an embodiment, hinges 400 can secure the unfolded state of the display module DM attached to plates 110, 120, and 130.

[0070] The folding fixing portion 500 can be combined with the frame 300. In one embodiment, the folding fixing portion 500 can have a U-shaped planar shape. In one embodiment, when the shape of the display module DM changes to a folded state, the folding fixing portion 500 can fix the folded state of the display module DM attached to the plates 110, 120, and 130.

[0071] The gap adjustment section 600 can be combined with the bezel frame 300. In an embodiment, when the shape of the display module DM changes to a folded state, the gap adjustment section 600 can adjust the interval (or gap) between the plates 110, 120 and 130.

[0072] In this embodiment, when the display module DM attached to plates 110, 120, and 130 is fully folded, the gap adjustment portion 600 can fix plates 110, 120, and 130 in a state where plates 110, 120, and 130 are in contact with each other. In other words, when the display module DM is fully folded, the gap adjustment portion 600 can fix plates 110, 120, and 130 to be substantially parallel to each other.

[0073] In this embodiment, when the display module DM attached to plates 110, 120, and 130 is not fully folded, the gap adjustment portion 600 can fix plates 110, 120, and 130 in a state where plates 110, 120, and 130 are spaced apart from each other at a certain interval (e.g., a predetermined interval). In other words, when the display module DM is not fully folded, the gap adjustment portion 600 can fix plates 110, 120, and 130 in a state where plates 110, 120, and 130 are not substantially parallel to each other. Reference will be made below. Figure 16 and Figure 17 It is described in detail.

[0074] Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 It shows that Figure 3 A diagram illustrating the method of combining the fixture with the display module. For example, Figures 4 to 10 This diagram illustrates how the clamp JG is combined with the display module DM to fix the display module DM in the unfolded state.

[0075] refer to Figure 4The first plate 110, the second plate 120, and the third plate 130 of the main frame 100 can be placed on the attachment guide 200. For example, the attachment guide 200 can define a placement slot LH, and the first plate 110, the second plate 120, and the third plate 130 can be placed on the placement slot LH respectively. That is, the second surfaces of the first plate 110, the second plate 120, and the third plate 130 can contact the attachment guide 200.

[0076] Further reference Figure 5 and Figure 6 The display module DM can be attached to the main frame 100. The main frame 100 can function as a housing covering the rear surface of the display module DM when it is used in an actual electronic device.

[0077] In one embodiment, when the first plate 110, the second plate 120, and the third plate 130 are placed on the attachment guide 200, the display module DM can be attached to the first surfaces of the first plate 110, the second plate 120, and the third plate 130. However, this disclosure is not necessarily limited thereto. When the attachment guide 200 is omitted, various alignment methods known in the art can be used to align the display module DM with the main frame 100, and the display module DM can be attached to the first plate 110, the second plate 120, and the third plate 130.

[0078] The first board 110, the second board 120, and the third board 130 can correspond to the first display area DA1, the second display area DA2, and the third display area DA3 of the display module DM, respectively. That is, the first board 110 can overlap with the first display area DA1 in the plan view, the second board 120 can overlap with the second display area DA2 in the plan view, and the third board 130 can overlap with the third display area DA3 in the plan view.

[0079] like Figure 6 As shown, after the display module DM is attached to the first surface of the first board 110, the second board 120 and the third board 130, the attachment guide 200 can be removed.

[0080] Further reference Figure 7 and Figure 8 The border frame 300 can be combined with the main frame 100. For example, by connecting components (e.g., Figure 16The connecting member (SCR) engages with screw holes formed in the main frame 100, and the bezel frame 300 can be combined with the main frame 100. In this case, the bezel frame 300 may surround at least a portion of the main frame 100 in a plan view. Furthermore, the bezel frame 300 may surround at least a portion of the display module DM in a plan view. The bezel frame 300 may correspond to the peripheral area PA of the display module DM. The bezel frame 300 may function similarly to a housing covering the peripheral area PA of the display module DM when the display module DM is applied to an actual electronic device.

[0081] Further reference Figure 9 and Figure 10 The hinge 400 can be engaged with the main frame 100. For example, the hinge 400 can be engaged with the second surface of the first plate 110, the second plate 120 and the third plate 130. Figure 10 This is a rear view showing the second surfaces of the first plate 110, the second plate 120, and the third plate 130. A hinge 400 can be connected to the hinge axis of each pair of adjacent plates in the first plate 110, the second plate 120, and the third plate 130, and can connect adjacent plates. In an embodiment, the hinge 400 may include a first hinge 410 and a second hinge 420 spaced apart from each other.

[0082] The first hinge 410 can be connected to the hinge axis of each of the first plate 110 and the second plate 120, and can connect the first plate 110 and the second plate 120. The second hinge 420 can be connected to the hinge axis of each of the second plate 120 and the third plate 130, and can connect the second plate 120 and the third plate 130. For example, the first hinge 410 can correspond to the first folding area FA1 of the display module DM, and the second hinge 420 can correspond to the second folding area FA2 of the display module DM.

[0083] In implementations, the first width of the first hinge 410 (e.g., its length in the first direction DR1) and the second width of the second hinge 420 may be different from each other. For example, as Figure 10 As shown, the first width of the first hinge 410 may be smaller than the second width of the second hinge 420. However, this disclosure is not necessarily limited to this, and the first width of the first hinge 410 may be greater than the second width of the second hinge 420. The first width of the first hinge 410 may vary according to the first radius of curvature in the first folding region FA1, and the second width of the second hinge 420 may vary according to the second radius of curvature in the second folding region FA2.

[0084] In one embodiment, the first hinge 410 and the second hinge 420 can be fixedly attached to the unfolded state of the display module DM of the first plate 110, the second plate 120 and the third plate 130.

[0085] In one embodiment, the fixture JG may further include a driver DRV for inspecting the display module DM. The driver DRV may be electrically connected to the display module DM. This is performed by an impact testing device (ITA, see...) Figure 1 After performing the drop impact test, the driver DRV can check whether the display module DM is driving normally.

[0086] The driver DRV can be bent and located on the rear surface of the main frame 100. For example, the driver DRV can be located on the second surface of the third plate 130. In an embodiment, the clamp JG may also include a cover member for protecting the driver DRV. The cover member can cover the driver DRV.

[0087] Therefore, the first drop body FB1, dropped by the impact testing equipment, can be configured. The display module DM, included in the first drop body FB1, can be in an unfolded state. The first drop body FB1 can have a setting environment similar to the unfolded state of a foldable electronic device when applied to an actual foldable electronic device.

[0088] Figure 11 , Figure 12 , Figure 13 , Figure 14 , Figure 15 , Figure 16 and Figure 17 It shows that Figure 3 A diagram illustrating the method of combining the fixture with the display module. For example, Figures 11 to 17 This diagram illustrates how the clamp JG is combined with the display module DM to secure the display module DM in a folded state.

[0089] refer to Figure 9 and Figure 11 In order to change the shape of the display module DM, the hinge 400 attached to the main frame 100 can be removed. For example, the first hinge 410 attached to the second surface of the first plate 110 and the second surface of the second plate 120 can be removed, and the second hinge 420 attached to the second surface of the second plate 120 and the second surface of the third plate 130 can be removed.

[0090] Further reference Figure 12 While the display module DM is attached to the main frame 100, the bezel frame 300 and the display module DM can be folded. In an implementation, such as... Figure 12 As shown, the display module DM can be folded outward relative to the first folding axis FX1 and folded inward relative to the second folding axis FX2.

[0091] In the implementation method, when the first falling body (FB1, see...) is formed... Figure 9Furthermore, after removing hinge 400, the bezel frame 300 and display module DM can be folded. However, this disclosure is not necessarily limited to this. Figure 8 As shown, after the bezel frame 300 is combined with the main frame 100, the bezel frame 300 and the display module DM can be folded without the hinge 400.

[0092] Further reference Figure 13 , Figure 14 and Figure 15 The folding fixing portion 500 can be combined with the bezel frame 300. For example, the folding fixing portion 500 can be combined with the bezel frame 300 by engaging the connecting member with the screw hole formed in the bezel frame 300. The folding fixing portion 500 can secure the folded state of the display module DM attached to the bezel frame 300 and the main frame 100. Figure 15 This is a rear perspective view showing the second surface of the third plate 130.

[0093] Further reference Figure 16 and Figure 17 The gap adjustment portion 600 can be combined with the frame 300. For example, a through hole can be defined in the gap adjustment portion 600. By aligning the screw holes formed in the frame 300 and the through hole of the gap adjustment portion 600, and by engaging the connecting member SCR with the screw holes and the through hole, the gap adjustment portion 600 can be combined with the frame 300. The gap adjustment portion 600 can adjust the interval (or gap) between the first plate 110, the second plate 120, and the third plate 130.

[0094] In one embodiment, the gap adjusting portion 600 may include a first gap adjusting portion 610 and a second gap adjusting portion 620. For example, the first gap adjusting portion 610 may have a straight shape, and the second gap adjusting portion 620 may have a Z-shaped shape. For example, the second gap adjusting portion 620 may include a first portion extending in a first direction DR1, a second portion connected to a first end of the first portion and extending in a third direction DR3, and a third portion connected to a second end of the first portion that is different from the first end and extending in the opposite direction to the third direction DR3. However, this disclosure is not necessarily limited thereto. In another embodiment, the gap adjusting portion 600 may also include a third gap adjusting portion having a T-shaped shape.

[0095] In this embodiment, when the display module DM attached to plates 110, 120, and 130 is fully folded, the gap adjustment portion 600 can fix plates 110, 120, and 130 in a state where plates 110, 120, and 130 are in contact with each other. In other words, when the display module DM is fully folded, the gap adjustment portion 600 can fix plates 110, 120, and 130 to be substantially parallel to each other. For example, with the first plate 110, the second plate 120, and the third plate 130 in a state where they are in contact with each other, the first gap adjustment portion 610 can be combined with the frame frame 300. Therefore, it is possible to configure the impact testing equipment (ITA, see...) Figure 1 The second falling body FB2. In this case, the display module DM included in the second falling body FB2 can be in a state where the display module DM is completely folded into a Z shape. The second falling body FB2 can have a setting environment similar to the state where the foldable electronic device is completely folded into a Z shape when applied to an actual foldable electronic device.

[0096] In this embodiment, when the display module DM attached to plates 110, 120, and 130 is not fully folded, the gap adjustment portion 600 can fix plates 110, 120, and 130 in a state where plates 110, 120, and 130 are spaced apart from each other at a certain interval (e.g., a predetermined interval). In other words, when the display module DM is not fully folded, the gap adjustment portion 600 can fix plates 110, 120, and 130 in a state where plates 110, 120, and 130 are not substantially parallel to each other. For example, when the first plate 110 and the second plate 120 are spaced apart from each other at a certain interval (e.g., a predetermined interval), the first gap adjustment portion 610 can be combined with the bezel frame 300. Similarly, when the second plate 120 and the third plate 130 are spaced apart from each other at a certain interval (e.g., a predetermined interval), the first gap adjustment portion 610 can be combined with the bezel frame 300. For example, with the first plate 110 and the second plate 120 spaced apart from each other by a certain interval (e.g., a predetermined interval), and the second plate 120 and the third plate 130 spaced apart from each other by a certain interval (e.g., a predetermined interval), the second gap adjustment portion 620 can be combined with the frame frame 300. Therefore, it is possible to configure the impact testing equipment (ITA, see...) Figure 1 The second falling body FB2. In this case, the display module DM included in the second falling body FB2 can be in a partially folded state. The second falling body FB2 can have a setting environment similar to that of a foldable electronic device when it is applied to an actual foldable electronic device, where the device is not fully folded (e.g., half-open). For example, the second falling body FB2 can have a setting environment similar to that of a foldable electronic device that is not fully folded due to an object such as a card, coin, pen, etc., being inserted between the folding parts of the foldable electronic device.

[0097] According to embodiments of the present disclosure, the fixture JG can be combined with the display module DM and the shape of the display module DM can be changed. In an embodiment, the display module DM can be folded into a Z shape by folding outward relative to a first folding axis FX1 and inward relative to a second folding axis FX2.

[0098] The falling object (FB) formed by combining the fixture JG and the display module DM, see [link] Figure 1 It can have a setup environment similar to that of a foldable electronic device operating in multiple usage modes. That is, the fixture JG can be used to perform an evaluation of defects that occur in the actual use environment of the display module DM operating in multiple usage modes.

[0099] For example, the first fall (FB1, see...) can be used. Figure 9 This is used to evaluate defects that occur in the actual use environment of the display module DM when it is in the unfolded state.

[0100] For example, the second falling body FB2 can be used to perform an assessment of defects that occur in the actual use environment of the display module DM operating in a fully Z-folded state.

[0101] For example, a second falling object FB2 can be used to evaluate defects that occur in a real-world use environment when the display module DM is operating in an incompletely folded state. Examples of an incompletely folded state of the display module DM can include: a first portion of the display module DM overlapping with the first display area DA1 and a second portion of the display module DM overlapping with the second display area DA2 being spaced apart; a third portion of the display module DM overlapping with the third display area DA3 and a second portion of the display module DM being spaced apart; and the first, second, and third portions of the display module DM being spaced apart from each other, etc. In other words, an incompletely folded state of the display module DM can be a state where the first display area DA1, the second display area DA2, and the third display area DA3 are not substantially parallel to each other (e.g., the angle formed between the first display area DA1 and the second display area DA2 is greater than 2 degrees and less than 179 degrees, or the angle formed between the second display area DA2 and the third display area DA3 is greater than 2 degrees and less than 179 degrees). On the other hand, a fully folded state of the display module DM can be a state where the first display area DA1, the second display area DA2, and the third display area DA3 are substantially parallel to each other.

[0102] Figure 18 This is an exploded perspective view showing a fixture according to an embodiment of the present disclosure. Figure 19 and Figure 20 It shows that Figure 18 A diagram illustrating the method of combining the fixture with the display module.

[0103] refer to Figure 18 According to embodiments of the present disclosure, the clamp JG' may include a main frame 100, an attachment guide 200, a side frame 300, a hinge 400', a folding fixing portion 500, and a gap adjustment portion 600.

[0104] Fixture JG' can be referenced above Figures 3 to 17 The described clamp JG is essentially the same, except that the hinge 400' includes the engaging portion JP. In the following text, the above references are omitted or summarized. Figures 3 to 17 The description of the fixture JG is redundant.

[0105] Further reference Figure 19 and Figure 20 Hinges 400' can be engaged with the main frame 100. For example, hinges 400' can be engaged with a second surface (e.g., a rear surface) of the first plate 110, the second plate 120, and the third plate 130. Hinges 400' can be connected to the hinge axis of each pair of adjacent plates in the first plate 110, the second plate 120, and the third plate 130, and can connect adjacent plates. In an embodiment, hinges 400' may include a first hinge 410' and a second hinge 420'.

[0106] The first hinge 410' can be connected to the hinge axis of each of the first plate 110 and the second plate 120, and can connect the first plate 110 and the second plate 120. The second hinge 420' can be connected to the hinge axis of each of the second plate 120 and the third plate 130, and can connect the second plate 120 and the third plate 130. For example, the first hinge 410' can correspond to the first folding area FA1 of the display module DM, and the second hinge 420' can correspond to the second folding area FA2 of the display module DM.

[0107] In an implementation, the first width of the first hinge 410' (e.g., its length in the first direction DR1) and the second width of the second hinge 420' can be different from each other. For example, as Figure 19 As shown, the first width of the first hinge 410' may be smaller than the second width of the second hinge 420'. However, this disclosure is not necessarily limited thereto.

[0108] In one embodiment, each of the first hinge 410' and the second hinge 420' may include a joining portion JP. In this case, the first hinge 410' and the second hinge 420' can be fixedly attached to the unfolded state of the display module DM of the first plate 110, the second plate 120, and the third plate 130. Therefore, it is possible to configure the display module DM to be deployed by an impact testing device (ITA, see...) Figure 1The first falling object FB1'. Furthermore, when the shape of the display module DM is changed to fold the display module DM, the first hinge 410' and the second hinge 420' can bend together with the display module DM. In other words, when the shape of the display module DM is changed, hinge 400' can bend together with the display module DM without being removed.

[0109] Figure 21 and Figure 22 This is a cross-sectional view illustrating some steps of an impact testing method according to an embodiment of the present disclosure.

[0110] refer to Figure 9 , Figure 10 and Figure 21 It can be configured by the impact testing equipment (ITA, see Figure 1 The first falling object FB1. In this embodiment, the display module DM included in the first falling object FB1 can be in an deployed state. That is, the impact testing equipment can use the first falling object FB1 to evaluate whether the display module DM, operating in the deployed state, will have defects due to a collision caused by a fall in a real-world usage environment. (See above references.) Figures 4 to 10 The description of the method of combining the fixture JG with the display module DM can be similarly applied to the description of the method of configuring the first falling body FB1.

[0111] An impact testing method according to embodiments of this disclosure may include dropping a first falling object FB1 toward an impact plate IMP. For example, as Figure 21 As shown, a first falling object FB1 can be dropped such that its lower surface FB1-B collides with the impact plate IMP, but this disclosure is not limited thereto. The dropping of the first falling object FB1 can be repeated multiple times, and each of the upper surface FB1-U, the two side surfaces FB1-S, the front surface FB1-F, and the rear surface FB1-R of the first falling object FB1 can collide with the impact plate IMP in multiple drop test steps. Therefore, an evaluation of defects that occur when the display module DM is dropped in various directions in a real-world usage environment, in which the display module DM operates in an unfolded state, can be performed.

[0112] After the first falling object FB1 is dropped toward the impact plate IMP, an inspection of the appearance of the first falling object FB1 and an inspection of whether the display module DM is operational can be performed.

[0113] refer to Figure 17 and Figure 22The second falling object FB2, dropped by the impact testing equipment, can be configured. In one embodiment, the configuration of the second falling object FB2 can be performed after the configuration of the first falling object FB1. That is, after the configuration of the first falling object FB1, the second falling object FB2 can be configured by changing the shape of the display module DM using the fixture JG. However, this disclosure is not necessarily limited to this.

[0114] In one embodiment, the display module DM included in the second drop object FB2 can be in a fully Z-folded state. In another embodiment, the display module DM included in the second drop object FB2 can be in a partially folded state. That is, the impact testing equipment can use the second drop object FB2 to evaluate whether the display module DM, operating in the folded state, will have defects due to a fall-induced impact in a real-world usage environment. (See above references.) Figures 11 to 17 The description of the method of combining the fixture JG with the display module DM can be similarly applied to the description of the method of configuring the second falling body FB2.

[0115] The impact testing method according to embodiments of this disclosure may further include dropping a second falling body FB2 toward an impact plate IMP. For example, as Figure 22 As shown, a second falling object FB2 can be dropped such that its lower surface FB2-B collides with the impact plate IMP, but this disclosure is not necessarily limited to this. The dropping of the second falling object FB2 can be repeated multiple times, and each of the upper surface FB2-U, the first side surface FB2-S, the second side surface FB2-FOS, the front surface FB2-F, and the rear surface of the second falling object FB2 can collide with the impact plate IMP in multiple drop test steps. In this case, the second side surface FB2-FOS of the second falling object FB2 can be a side surface overlapping the first folding axis FX1, and the first side surface FB2-S of the second falling object FB2 can be a side surface opposite to the second side surface FB2-FOS. Therefore, an evaluation of defects that occur when the display module DM is dropped in various directions in a real-world usage environment where the display module DM operates in a folded state can be performed.

[0116] After the second falling object FB2 is dropped toward the impact plate IMP, an inspection of the appearance of the second falling object FB2 and an inspection of whether the display module DM is operational can be performed.

[0117] Figure 23 This is a block diagram of an electronic device according to an embodiment of the present disclosure. Figure 24 It is shown Figure 23 The figure shows an example of an electronic device implemented as a foldable electronic device.

[0118] refer to Figure 23 and Figure 24The electronic device 10 according to the embodiment may include a display module 11, a processor 12, a memory 13, and a power module 14. The display module 11 may correspond to the impact testing equipment (ITA, see above) described above. Figure 1 The display module (DM) being evaluated (see) Figure 3 The electronic device 10 according to the embodiments may include the display device described above, and may also include modules or devices having other additional functions besides the display device.

[0119] The processor 12 may include at least one of a central processing unit (CPU), an application processor (AP), a graphics processing unit (GPU), a communication processor (CP), an image signal processor (ISP), and a controller.

[0120] The memory 13 can store the data information required for the operation of the processor 12 or the display module 11. When the processor 12 executes the application stored in the memory 13, image data signals and / or input control signals can be transmitted to the display module 11, and the display module 11 can process the received signals and output image information through the display screen.

[0121] The power module 14 may include a power supply module such as a power adapter or battery device, and a power conversion module that converts the power supplied by the power supply module to generate the power required for the operation of the electronic device 10. That is, the power module 14 can provide power to the display device according to the embodiment described above.

[0122] At least one of the components of the electronic device 10 described above may be included in the display device according to the embodiments described above. Furthermore, some of the individual modules that are functionally included in a single module may be included in the display device, and other modules may be disposed separately from the display device. For example, the display device may include a display module 11, and the processor 12, memory 13, and power module 14 may be disposed in the electronic device 10 in the form of other devices besides the display device.

[0123] In the implementation method, such as Figure 24As shown, electronic device 10 can be implemented as a foldable electronic device. For example, electronic device 10 can be implemented as a foldable smartphone. In this case, electronic device 10 may include a display area DA for displaying an image and a border area BZA surrounding the display area DA. The border area BZA may not display an image. Electronic device 10 can fold outward relative to a first folding axis FX1 and inward relative to a second folding axis FX2. However, this is exemplary, and electronic device 10 is not necessarily limited to this. For example, electronic device 10 can be implemented as a tablet PC, a laptop computer, a game console, a car navigation system, a computer monitor, etc.

[0124] This disclosure can be applied to various display devices. For example, this disclosure can be applied to various display devices such as those used in vehicles, ships and aircraft, portable communication devices, display devices for display or information transmission, medical display devices, etc.

[0125] The above is a description of embodiments of this disclosure and should not be construed as limiting thereto. Although some embodiments have been described with reference to the accompanying drawings, those skilled in the art will readily understand that many variations and modifications may be made therein without departing from the spirit and scope of this disclosure as defined in the appended claims.

Claims

1. A clamp, comprising: The main frame includes multiple plates, each of which has a first surface to which a display module is attached and a second surface opposite to the first surface; A border frame, which is integrated with the main frame and surrounds at least a portion of the main frame in a plan view; A hinge, which engages with the second surface of the plurality of plates, connects adjacent plates among the plurality of plates, and is capable of fixing the unfolded state of the display module; as well as The folding fixing part is combined with the frame and can fix the folded state of the display module.

2. The clamp according to claim 1, further comprising: The gap adjustment section is integrated with the frame and adjusts the gap between the plurality of plates.

3. The clamp of claim 1, wherein, The hinge includes multiple engaging parts.

4. The clamp according to claim 1, wherein, The display module includes a first display area, a second display area, a third display area, a peripheral area surrounding at least a portion of the first display area to the third display area in the plan view, a first folded area between the first display area and the second display area, and a second folded area between the second display area and the third display area. The plurality of boards respectively correspond to the first display area to the third display area, and The border frame corresponds to the outer area.

5. An impact testing method, the method comprising: The fixture includes a main frame containing multiple plates, a side frame, a hinge, and a folding and fixing part. The display module is attached to the first surface of the plurality of boards; The border frame is combined with the main frame to surround at least a portion of the main frame in a plan view; The hinge is combined with the second surface of the plurality of plates opposite to the first surface to connect adjacent plates among the plurality of plates, thereby forming a first drop body including the display module fixed in the unfolded state; The first falling object collides with the impact plate; Fold the frame and the display module attached to the plurality of boards; The folding and fixing part is combined with the frame to form a second body including the display module fixed in the folded state; as well as The second falling object collides with the impact plate.

6. The method according to claim 5, wherein, The clamp also includes a gap adjustment section for adjusting the gap between the plurality of plates, and The method further includes combining the gap adjustment portion with the frame after folding the frame and the display module.

7. The method according to claim 6, in, When the display module included in the second falling body is fixed in a fully folded state, the plurality of plates of the main frame included in the second falling body are parallel to each other.

8. The method according to claim 6, in, When the display module included in the second falling body is fixed in an incompletely folded state, the plurality of plates of the main frame included in the second falling body are not parallel to each other.

9. The method according to claim 5, further comprising: The hinge is removed after the first falling body is formed.

10. The method according to claim 5, in, The hinge includes multiple engaging portions, and The hinge bends together with the display module during the folding of the frame and the display module.

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