Apparatus for manufacturing display device and method of manufacturing display device

Abstract

The invention relates to an apparatus for manufacturing a display device and a method of manufacturing the display device. The apparatus includes: a clamp including a bottom portion on which a circuit portion of a circuit board is disposed, and a plurality of electromagnets disposed on the bottom portion to be spaced apart from each other, where the plurality of electromagnets are concavo-convex coupled to a plurality of protrusions of the circuit board, the plurality of electromagnets being disposed on the bottom portion to be spaced apart from each other; the plurality of protruding parts protrude from the circuit part; and a power supply for supplying current to the plurality of electromagnets.

Description

Technical Field

[0001] This disclosure relates to apparatus for manufacturing a display device and a method for manufacturing a display device using said apparatus. More specifically, this disclosure relates to apparatus for manufacturing a display device for fastening connectors and a method for manufacturing a display device using said apparatus. Background Technology

[0002] With the development of information technology, the importance of display devices, as the primary connection medium between users and information, is being emphasized. Therefore, various types of display devices, such as liquid crystal displays, organic light-emitting diode displays, and plasma displays, are widely used in various fields.

[0003] Display devices typically include a display area located by multiple pixels and a peripheral area located by a driving circuit chip used to drive the multiple pixels.

[0004] In this display device, the connector can be positioned in the peripheral area. A printed circuit board, which is one of the driving components of the display device, can be positioned within the connector. For example, the circuit board can be a flexible printed circuit board (“FPCB”). Summary of the Invention

[0005] This disclosure provides an apparatus for manufacturing display devices that ensures constant quality during cable fastening operations.

[0006] This disclosure provides a method for manufacturing a display device using equipment for manufacturing display devices.

[0007] An embodiment of an apparatus for manufacturing a display device includes: a fixture including a bottom portion and a plurality of electromagnets, a circuit portion of a circuit board disposed on the bottom portion, the plurality of electromagnets disposed on the bottom portion and spaced apart from each other, wherein the plurality of electromagnets are male-female coupled to a plurality of protrusions of the circuit board, the plurality of protrusions protruding from the circuit portion; and a power source for supplying current to the plurality of electromagnets.

[0008] In an embodiment, a first alignment mark may be defined on each of a plurality of protrusions, and a second alignment mark may be defined on each of a plurality of electromagnets.

[0009] In an embodiment, each of the first alignment mark and the second alignment mark may have a cross shape in the plan view.

[0010] In an embodiment, the device may further include: a first sensor for detecting a first alignment mark and a second alignment mark.

[0011] In one embodiment, the first sensor may include a vision camera.

[0012] In an embodiment, the device may further include: a plurality of second sensors disposed between a plurality of electromagnets, wherein the plurality of second sensors detect contact between the plurality of electromagnets and the plurality of protrusions.

[0013] In an embodiment, the plurality of second sensors may include at least one selected from a current measurement sensor, a magnetic measurement sensor, and a touch sensor.

[0014] In one embodiment, the circuit board may be an inspection circuit board that is inserted into and secured to a display panel of a display device on a stage for inspecting the display panel, and the device may further include a track disposed on the stage between the display panel and the circuit board on the fixture to guide the fixture on the stage to the display panel.

[0015] In an embodiment, the multiple protrusions may include conductive material or permanent magnets.

[0016] In one embodiment, the bottom portion may include an insulating material.

[0017] An embodiment of a method for manufacturing a display device includes: preparing a circuit board including a plurality of protrusions; placing the circuit board on a fixture including a bottom portion and a plurality of electromagnets disposed on the bottom portion and spaced apart from each other; and determining whether the circuit board is placed in an accurate position.

[0018] In an embodiment, determining whether the circuit board is positioned correctly may include: detecting a second alignment mark defined on each of a plurality of electromagnets and a first alignment mark defined on each of a plurality of protrusions; and determining the degree of tilt of the circuit board based on the first alignment mark and the second alignment mark.

[0019] In an embodiment, when the first alignment mark and the second alignment mark are detected to be not positioned in the same straight line, it can be determined that the circuit board is tilted and the circuit board is not placed in the correct position.

[0020] In one embodiment, determining whether the circuit board is positioned correctly may include detecting non-contact portions of the plurality of electromagnets and the plurality of protrusions that are not in contact with each other.

[0021] In an embodiment, the method may further include supplying current to a plurality of electromagnets before detecting the non-contact portion.

[0022] In an embodiment, the method may further include: detecting the number of non-contact portions; and calculating the compensation distance of the circuit board based on the number of non-contact portions.

[0023] In an embodiment, the method may further include cutting off the current supplied to the plurality of electromagnets when it is determined that the circuit board is not placed in the correct position.

[0024] In an embodiment, the method may further include: when it is determined that the circuit board is not placed in the correct position, performing the placement of the circuit board on the fixture again after cutting off the current.

[0025] In an embodiment, the method may further include: when the circuit board is determined to be placed in an accurate position, coupling the circuit board to the display panel of the display device.

[0026] In an embodiment, the method may further include: moving a clamp on a track to move the circuit board toward the display panel before coupling the circuit board to the display panel.

[0027] An apparatus for manufacturing a display device according to an embodiment of the present disclosure includes: a fixture including a bottom portion and a plurality of electromagnets, a circuit portion of a circuit board disposed on the bottom portion, the plurality of electromagnets disposed on the bottom portion and spaced apart from each other, wherein the plurality of electromagnets are concave-convexly coupled to a plurality of protrusions of the circuit board, the plurality of protrusions protruding from the circuit portion; and a power supply for supplying current to the plurality of electromagnets. Therefore, operations for inspecting the cable fastening of the circuit board to the display device are performed consistently, minimizing cable fastening errors and ensuring consistent quality of the cable fastening operation. Attached Figure Description

[0028] The above and other features of this disclosure will become more apparent from the following detailed description of embodiments with reference to the accompanying drawings.

[0029] Figure 1 and Figure 2 This is a view showing an apparatus for manufacturing a display device according to an embodiment.

[0030] Figure 3 It shows the use Figure 1 and Figure 2 A view of a display panel coupled to a circuit board, which is used to manufacture display devices.

[0031] Figure 4 It shows the use Figure 1 and Figure 2 Equipment used for manufacturing display devices and connected to Figure 3 A view of the circuit board of the display panel.

[0032] Figure 5 It shows that it is equipped with Figure 4 A view of the fixture for the circuit board.

[0033] Figure 6 , Figure 7 and Figure 8 It is shown Figure 1 and Figure 2 A view of the operation of equipment used to manufacture display devices.

[0034] Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 , Figure 15 , Figure 16 , Figure 17 , Figure 18 , Figure 19 , Figure 20 , Figure 21 and Figure 22 It shows the use Figure 1 and Figure 2 A view of the apparatus used to manufacture a display device and the method of manufacturing a display device. Detailed Implementation

[0035] The invention will now be described more fully below with reference to the accompanying drawings, in which various embodiments are illustrated. However, the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be exhaustive and complete, and will fully convey the scope of the invention to those skilled in the art. The same reference numerals throughout refer to the same elements.

[0036] It will be understood that when an element is referred to as being "on" another element, the element may be directly on the other element or an intermediary element may exist between the element and the other element. Conversely, when an element is referred to as being "directly on" another element, no intermediary element exists.

[0037] It will be understood that although the terms “first,” “second,” “third,” etc., may be used herein to describe various elements, components, areas, layers, and / or segments, these elements, components, areas, layers, and / or segments should not be limited by these terms. These terms are used only to distinguish one element, component, area, layer, or segment from another element, component, area, layer, or segment. Therefore, without departing from the teachings herein, “first element,” “first component,” “first area,” “first layer,” or “first segment” discussed below may be referred to as “second element,” “second component,” “second area,” “second layer,” or “second segment.”

[0038] 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 on quantity and are intended to include both the singular and plural forms. Thus, a reference to “an element” in the claims followed by a reference to “the element” includes one element and multiple elements. 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.” As used herein, the term “and / or” includes any and all combinations of one or more of the associated listed items. It will be further understood that, when used in this specification, the terms “comprising” and / or “including” or “having” and / or “possessing” indicate 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.

[0039] Furthermore, relative terms such as “below” or “bottom” and “above” or “top” may be used herein to describe the relationship between one element and another as shown in the accompanying drawings. It will be understood that, in addition to the orientations depicted in the drawings, the relative terms are intended to cover different orientations of the device. For example, if the device is flipped in one of the drawings, an element described as being “below” the other element will subsequently be oriented to be “above” the other element. Thus, depending on the specific orientation of the drawing, the term “below” can cover both “below” and “above” orientations. Similarly, if the device is flipped in one of the drawings, an element described as being “below” or “under” the other element will subsequently be oriented to be “above” the other element. Thus, the terms “below” or “under” can cover both “above” and “below” orientations.

[0040] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. It will be further understood that, unless expressly defined herein, terms (such as those defined in a general dictionary) should be interpreted as having a meaning consistent with their context in the relevant field and their meaning in this disclosure, and will not be interpreted in an idealized or overly formalized sense.

[0041] The embodiments are described herein with reference to schematic diagrams of idealized embodiments. Therefore, variations in the shapes illustrated will be expected due to factors such as manufacturing techniques and / or tolerances. Consequently, the embodiments described herein should not be construed as limited to the specific shapes of the areas shown herein, but will include deviations in shape due to factors such as manufacturing. For example, areas shown or described as flat may generally have rough and / or non-linear characteristics. Furthermore, sharp corners shown may be rounded. Therefore, the areas shown in the drawings are schematic in nature, and their shapes are not intended to show precise shapes of the areas, nor are they intended to limit the scope of the claims.

[0042] In the following description, embodiments will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used for the same components, and any repeated detailed descriptions of the same components will be omitted or simplified.

[0043] Figure 1 and Figure 2 This is a view showing an apparatus for manufacturing a display device according to an embodiment.

[0044] Reference Figure 1 and Figure 2 According to embodiments of the present disclosure, the apparatus 100 for manufacturing a display device can fasten the inspection circuit board 20 to the display device 10.

[0045] In one embodiment, the inspection circuit board 20 can be inserted into and secured to the display device 10 to inspect the display device 10. In another embodiment, the inspection circuit board 20 can perform aging checks, illumination checks, etc., on the display device 10. Therefore, the inspection circuit board 20 can check whether the display device 10 is operating normally.

[0046] In an embodiment, the apparatus 100 for manufacturing a display device may include a first robotic arm RBA1, a robotic hand RBH, a first sensor SE1, a second robotic arm RBA2, a controller CTR, a stage ST, a fixture JI, and a track RA.

[0047] In an embodiment, for example, the first robotic arm RBA1 may be an articulated robot. Therefore, the robotic hand RBH can move in various directions via the first robotic arm RBA1. However, this disclosure is not limited thereto.

[0048] In one embodiment, for example, the robotic hand RBH can be attached to the first robotic arm RBA1. The robotic hand RBH can move via the first robotic arm RBA1.

[0049] In one embodiment, the apparatus 100 for manufacturing a display device may include a first sensor SE1. In another embodiment, for example, the first sensor SE1 may be positioned on a robotic arm RBH.

[0050] In an embodiment, the first sensor SE1 may include a vision camera. In an embodiment, the first sensor SE1 can detect a first alignment mark and a second alignment mark, which will be described later (e.g., Figure 7 The first alignment mark AM1 and the second alignment mark AM2). Therefore, the first sensor SE1 can confirm whether the inspection circuit board 20 is placed in the correct position. (See below for details.) Figure 7 The detailed features of the first sensor SE1 are described in the accompanying figures.

[0051] In some embodiments, for example, the second robotic arm RBA2 may be controlled independently of the first robotic arm RBA1. In some embodiments, for example, the second robotic arm RBA2 may be an orthogonal robot. That is, the second robotic arm RBA2 may move only in the first direction D1 and in the direction opposite to the first direction D1. However, this disclosure is not limited thereto.

[0052] In one embodiment, for example, the second robotic arm RBA2 can secure the circuit board PCB (also referred to herein as the panel circuit board PCB) for the panel. Therefore, movement of the display device 10 can be effectively prevented.

[0053] In one embodiment, for example, the controller CTR can be connected to the first robot arm RBA1, the second robot arm RBA2, and the robot hand RBH. The controller CTR can control the movement of the first robot arm RBA1 and the second robot arm RBA2. In another embodiment, for example, the controller CTR can move or manipulate the robot hand RBH via the first robot arm RBA1, and effectively prevent the display device 10 from moving via the second robot arm RBA2.

[0054] In this embodiment, the controller CTR can be connected to the first sensor SE1. The controller CTR can receive images from the first sensor SE1. Therefore, the controller CTR can determine whether the inspection circuit board 20 is positioned correctly or at a predetermined desired location. (See below for further details.) Figure 9 The accompanying drawings provide a detailed description of the controller CTR.

[0055] In one embodiment, the display device 10 may be positioned on a stage ST. In another embodiment, for example, the stage ST may be on a plane defined by a second direction D2 and a third direction D3. Here, each of the second direction D2 and the third direction D3 may intersect with the first direction D1. That is, the first direction D1, the second direction D2, and the third direction D3 may intersect each other.

[0056] Display device 10 may include a display panel PNL, a driver integrated circuit IC, a circuit board PCB for the panel, and a connector CNT. Inspection circuit board 20 may include a cable CB and a board BLD. The cable CB included in inspection circuit board 20 can be inserted into and secured to the connector CNT included in display device 10. (See below for further details.) Figure 3 The detailed features of the display device 10 are described below.

[0057] In an embodiment, for example, the display device 10 may be fixed to the stage ST, and the circuit board 20 may be checked to move toward the display device 10 in a predetermined direction (e.g., the second direction D2 and / or the direction opposite to the second direction D2).

[0058] If the inspection circuit board 20 is not in stable contact with the display device 10, the inspection may not be able to be performed properly due to poor contact. In addition, if the inspection circuit board 20 is mispositioned, the display device 10 may be damaged when the inspection circuit board 20 is inserted into the display device 10.

[0059] Therefore, the apparatus 100 for manufacturing a display device according to embodiments of the present disclosure may include a clamp JI and a track RA to ensure the reliability of the fastening operation of the inspection circuit board 20 and the display device 10.

[0060] In one embodiment, the track RA can be positioned between the display panel PNL and the inspection circuit board 20. In another embodiment, the inspection circuit board 20 can be mounted on a clamp JI. In yet another embodiment, the inspection circuit board 20 can be guided to the display panel PNL via the clamp JI on the track RA.

[0061] Since the inspection circuit board 20 slides along the track RA and is inserted and secured to the display panel PNL, the securing operation is performed consistently, which minimizes securing errors and ensures a certain quality of the securing operation.

[0062] However, this disclosure is not limited thereto. In embodiments, for example, Figure 1 and Figure 2 The apparatus 100 for manufacturing a display device may include more components, or the components may be omitted or replaced.

[0063] In one embodiment, the apparatus 100 for manufacturing the display device may include a displacement sensor (not shown). In another embodiment, for example, the displacement sensor may be positioned adjacent to the display device 10. Therefore, the distance between the display device 10 and the inspection circuit board 20 can be measured.

[0064] A displacement sensor can provide a sensed value, which serves as the basis for a control signal (e.g., generating an alarm or stopping operation) when the distance between the display device 10 and the inspection circuit board 20 is greater than a set value. Therefore, movement of the clamp JI in the stated direction (e.g., the second direction D2 or the direction opposite to the second direction D2) can be stopped, and under-insertion or over-insertion of the cable CB can be effectively prevented. However, this disclosure is not limited thereto.

[0065] Figure 3 It shows the use Figure 1 and Figure 2 A view of a display panel coupled to a circuit board, which is used to manufacture display devices.

[0066] Reference Figure 3 An embodiment of the display panel PNL may include a display area DA and a peripheral area PA surrounding the display area DA when viewed in a plan view or in the thickness direction (first direction D1) of the display panel PNL.

[0067] Multiple pixels (PX) can be positioned within a display area (DA). Each of the multiple pixels (PX) can emit light of a predetermined color. In an embodiment, for example, each of the multiple pixels (PX) can emit red, green, or blue light, etc. The display panel (PNL) can provide an image by combining the colored light emitted from the multiple pixels (PX).

[0068] In one embodiment, the plurality of pixels PX may not be located within the peripheral region PA. The peripheral region PA may completely or partially surround the display region DA. However, this disclosure is not limited thereto. In another embodiment, for example, the plurality of pixels PX may also be located within the peripheral region PA.

[0069] The driver integrated circuit (IC) can be disposed in the peripheral area PA. In embodiments, for example, the driver IC can be connected to the display panel PNL in various ways such as glass-on-chip (“COG”), film-on-chip (“COF”), and plastic-on-chip (“COP”). The driver IC can generate electrical signals in response to power and signals received from external sources or external devices or circuits. Power and signals can be provided to multiple pixels PX.

[0070] The pad portion (PD) can be disposed within the peripheral area (PA). The pad portion (PD) can be electrically connected to the driver integrated circuit (IC) via wiring or conductive layers. The panel circuit board (PCB) can be disposed on the pad portion (PD). The panel circuit board (PCB) can be electrically connected to the driver integrated circuit (IC) via the pad portion (PD). In embodiments, for example, the panel circuit board (PCB) can be attached to the pad portion (PD) using adhesive components. However, this disclosure is not limited thereto.

[0071] The connector CNT can be disposed on one side of the panel circuit board PCB. The panel circuit board PCB can be electrically connected to the inspection circuit board 20 via the connector CNT. The panel circuit board PCB can be connected to the inspection circuit board 20. The panel circuit board PCB can transmit received control signals and / or power to the driver integrated circuit IC and the display panel PNL. Thus, the inspection circuit board 20 can inspect the panel circuit board PCB.

[0072] In an embodiment, for example, the panel circuit board PCB may be a flexible printed circuit board (“FPCB”) with flexible properties. The flexible printed circuit board may be folded, bent, or folded under the back of the display panel PNL and overlaps with at least a portion of the display panel PNL.

[0073] However, this disclosure is not limited thereto. In embodiments, for example, Figure 3 The display device 10 may include more components, or the components may be omitted or replaced.

[0074] Figure 4 It shows the use Figure 1 and Figure 2 Equipment used for manufacturing display devices and connected to Figure 3 A view of the circuit board of the display panel.

[0075] Reference Figure 2 and Figure 4 In one embodiment, the inspection circuit board 20 may include a board BLD, a cable CB, and a plurality of protrusions PP.

[0076] In one embodiment, for example, the board BLD may be a drive power board that supplies drive current for inspection of the display device 10. In another embodiment, for example, the board BLD may be a pattern generator that outputs an image signal for each pattern for inspection of the display device 10. In another embodiment, for example, a circuit portion CIP in which multiple lines are formed may be defined in the board BLD.

[0077] In an embodiment, for example, the cable CB included in the inspection circuit board 20 may be a flexible printed circuit board. The cable CB can be inserted into and secured to the connector CNT. Since the cable CB connects the board BLD to the display device 10, the inspection process of the display device 10 can be performed.

[0078] In one embodiment, a plurality of protrusions PP may be formed to protrude from the circuit portion CIP of the inspection circuit board 20. In another embodiment, for example, the plurality of protrusions PP may be formed to protrude from the circuit portion CIP of the inspection circuit board 20 in a third direction D3 and in a direction opposite to the third direction D3.

[0079] In one embodiment, for example, the plurality of protrusions PP may be spaced apart from the circuit portion CIP in a plan view and may protrude from at least one side parallel to the direction in which the cable CB moves toward the display panel PNL. In another embodiment, for example, the plurality of protrusions PP may be formed to protrude from at least one side extending parallel to the second direction D2.

[0080] In an embodiment, the plurality of protrusions PP may be spaced apart from each other. In an embodiment, for example, the plurality of protrusions PP may include a first protrusion PP1, a second protrusion PP2, a third protrusion PP3, a fourth protrusion PP4, a fifth protrusion PP5, a sixth protrusion PP6, a seventh protrusion PP7, and an eighth protrusion PP8.

[0081] In an embodiment, for example, the first protrusion PP1, the second protrusion PP2, the third protrusion PP3, and the fourth protrusion PP4 can be positioned from the circuit portion CIP on the third-direction D3. The fifth protrusion PP5, the sixth protrusion PP6, the seventh protrusion PP7, and the eighth protrusion PP8 can be positioned from the circuit portion CIP in the direction opposite to the third-direction D3.

[0082] In an embodiment, for example, the first protrusion PP1, the second protrusion PP2, the third protrusion PP3, and the fourth protrusion PP4 may be positioned spaced apart from each other in the second direction D2. The fifth protrusion PP5, the sixth protrusion PP6, the seventh protrusion PP7, and the eighth protrusion PP8 may be positioned spaced apart from each other in the second direction D2.

[0083] In embodiments, the plurality of protrusions PP may comprise a conductive material or a permanent magnet. In embodiments, for example, the inspection circuit board 20 may comprise plastic. In embodiments, recesses may be defined or formed in the inspection circuit board 20, and the plurality of protrusions PP may be mounted or inserted into the recesses. However, this disclosure is not limited thereto. In embodiments, for example, the plurality of protrusions PP may be coupled to the inspection circuit board 20 in various ways. In embodiments, for example, the plurality of protrusions PP may be coupled to the inspection circuit board 20 using adhesive members.

[0084] In an embodiment, for example, when the plurality of protrusions PP include permanent magnets, the polarity of the permanent magnets may be opposite to the polarity of the plurality of electromagnets EM, which will be described later.

[0085] In one embodiment, a first alignment mark AM1 may be provided on each of the plurality of protrusions PP. In such an embodiment, the first alignment mark AM1 can be used to determine whether the inspection circuit board 20 is positioned correctly.

[0086] In an embodiment, the first alignment mark AM1 may have a cross shape in a plan view. However, this disclosure is not limited thereto. In an embodiment, for example, the first alignment mark AM1 may be changed to various shapes representing north, south, east, and west.

[0087] Refer to later Figure 6 , Figure 7 and Figure 8 The detailed features of the first alignment mark AM1 are described.

[0088] Figure 5 It shows that it is equipped with Figure 4 A view of the fixture for the circuit board.

[0089] Reference Figure 2 , Figure 4 and Figure 5 In an embodiment, the fixture JI may include a bottom portion P1, a support portion P2, a plurality of electromagnets EM and a plurality of second sensors SE2.

[0090] In one embodiment, the circuit portion CIP of the inspection circuit board 20 may be mounted on the bottom portion P1. In another embodiment, the bottom portion P1 may include an insulating material to effectively prevent short circuits in the circuit portion CIP. However, this disclosure is not limited thereto.

[0091] The support portion P2 may protrude from the bottom portion P1 in a first direction D1. In an embodiment, a plurality of electromagnets EM may be spaced apart from each other on the bottom portion P1 along the extending direction of the support portion P2 (e.g., a second direction D2). In an embodiment, for example, the plurality of electromagnets EM may be attached to and detached from the support portion P2.

[0092] In an embodiment, the plurality of electromagnets EM may be spaced apart from each other. In an embodiment, for example, the plurality of electromagnets EM may include a first electromagnet EM1, a second electromagnet EM2, a third electromagnet EM3, a fourth electromagnet EM4, a fifth electromagnet EM5, a sixth electromagnet EM6, a seventh electromagnet EM7, an eighth electromagnet EM8, a ninth electromagnet EM9, and a tenth electromagnet EM10.

[0093] In an embodiment, for example, the first electromagnet EM1, the second electromagnet EM2, the third electromagnet EM3, the fourth electromagnet EM4, and the fifth electromagnet EM5 can be positioned from the bottom portion P1 in a third direction D3. The sixth electromagnet EM6, the seventh electromagnet EM7, the eighth electromagnet EM8, the ninth electromagnet EM9, and the tenth electromagnet EM10 can be positioned from the bottom portion P1 in a direction opposite to the third direction D3.

[0094] In an embodiment, for example, the first electromagnet EM1, the second electromagnet EM2, the third electromagnet EM3, the fourth electromagnet EM4, and the fifth electromagnet EM5 may be spaced apart from each other in the second direction D2. The sixth electromagnet EM6, the seventh electromagnet EM7, the eighth electromagnet EM8, the ninth electromagnet EM9, and the tenth electromagnet EM10 may be spaced apart from each other in the second direction D2.

[0095] In this embodiment, multiple electromagnets EM can receive current from a power source PO. The multiple electromagnets EM can generate magnetic force by receiving this current.

[0096] In some embodiments, for example, the plurality of electromagnets EM may comprise a material that can generate magnetic force by receiving an electric current. In some embodiments, for example, the plurality of electromagnets EM may comprise iron. However, this disclosure is not limited thereto.

[0097] In an embodiment, the plurality of electromagnets EM of the fixture JI can be coupled to the plurality of protrusions PP of the inspection circuit board 20 in a concave-convex manner. That is, the plurality of electromagnets EM of the fixture JI can be coupled to the plurality of protrusions PP of the inspection circuit board 20 through interlocking connectors. In an embodiment, for example, the plurality of electromagnets EM can have a first quadrilateral shape. The first quadrilateral shape can be a shape that is wide at the top and narrow at the bottom. The plurality of protrusions PP can also have a second quadrilateral shape. The second quadrilateral shape can be a shape that is wide at the bottom and narrow at the top. Therefore, the inspection circuit board 20 and the fixture JI can be coupled to each other.

[0098] In one embodiment, the second alignment mark AM2 can be positioned on each of the plurality of electromagnets EM. In such an embodiment, the second alignment mark AM2 can be used to determine whether the inspection circuit board 20 is positioned correctly.

[0099] In an embodiment, the second alignment mark AM2 may have a cross shape in a plan view. However, this disclosure is not limited thereto. In an embodiment, for example, the second alignment mark AM2 may be changed to various shapes representing north, south, east, and west.

[0100] Refer to the following Figure 6 , Figure 7 and Figure 8 The detailed features of the second alignment mark AM2 are described.

[0101] In one embodiment, a plurality of second sensors SE2 may be disposed in a plurality of target holes G defined between a plurality of electromagnets EM. The plurality of second sensors SE2 may detect contact between the plurality of electromagnets EM and a plurality of protrusions PP.

[0102] In an embodiment, for example, the first target hole G1 may be defined between the first electromagnet EM1 and the second electromagnet EM2, the second target hole G2 may be defined between the second electromagnet EM2 and the third electromagnet EM3, the third target hole G3 may be defined between the third electromagnet EM3 and the fourth electromagnet EM4, the fourth target hole G4 may be defined between the fourth electromagnet EM4 and the fifth electromagnet EM5, the fifth target hole G5 may be defined between the sixth electromagnet EM6 and the seventh electromagnet EM7, the sixth target hole G6 may be defined between the seventh electromagnet EM7 and the eighth electromagnet EM8, the seventh target hole G7 may be defined between the eighth electromagnet EM8 and the ninth electromagnet EM9, and the eighth target hole G8 may be defined between the ninth electromagnet EM9 and the tenth electromagnet EM10.

[0103] By positioning multiple second sensors SE2 in multiple target holes G, the portions of multiple electromagnets EM that are not in contact with multiple protrusions PP can be detected.

[0104] In an embodiment, the plurality of second sensors SE2 may include current measurement sensors, magnetic measurement sensors, or touch sensors. These sensors may be used individually or in combination with each other.

[0105] In an embodiment, for example, a current measurement sensor can output current, measure whether the output electrode is energized, and detect the contact between multiple electromagnets EM and multiple protrusions PP.

[0106] In an embodiment, for example, a magnetic measurement sensor can detect the magnetic force generated from a permanent magnet, and when the magnetic force is greater than a threshold, the magnetic measurement sensor can detect the contact between multiple electromagnets EM and multiple protrusions PP.

[0107] In one embodiment, for example, the touch sensor may be a capacitive sensor. A capacitive sensor can detect contact between multiple electromagnets EM and multiple protrusions PP by measuring changes in capacitance.

[0108] However, this disclosure is not limited thereto. In embodiments, for example, the plurality of second sensors SE2 may include various sensors capable of detecting contact between the plurality of electromagnets EM and the plurality of protrusions PP.

[0109] Figure 4 and Figure 5 The embodiments shown are merely exemplary, and this disclosure is not limited thereto. In the embodiments, for example, the number, shape, arrangement spacing, or size of the plurality of protrusions PP and the plurality of electromagnets EM can be varied in various ways.

[0110] In an embodiment, for example, such as Figure 4 and Figure 5As shown, the plurality of protrusions PP and the plurality of electromagnets EM are described as having quadrilateral shapes; however, this disclosure is not limited thereto. In embodiments, for example, the plurality of protrusions PP and the plurality of electromagnets EM can be varied in shape to enable concave-convex coupling. In embodiments, for example, where the plurality of protrusions PP have a triangular shape, the plurality of electromagnets EM can be formed such that the target hole between the plurality of electromagnets EM has a triangular shape in a plan view.

[0111] In an embodiment, such as Figure 4 and Figure 5 As shown, the inspection circuit board 20 is fixed to the fixture JI by a plurality of electromagnets EM, however, this disclosure is not limited thereto.

[0112] In embodiments, for example, the clamp JI may further include a physical securing device. In embodiments, for example, the physical securing device can secure the inspection circuit board 20 even if the current supplied to the multiple electromagnets EM is interrupted. In embodiments, for example, the physical securing device may include a manually removable lock or a hook that is automatically operated by a controller, etc.

[0113] Figure 6 , Figure 7 and Figure 8 It is shown Figure 1 and Figure 2 A view of the operation of equipment used to manufacture display devices.

[0114] Reference Figure 6 Once the exact position of the inspection circuit board 20 on the fixture JI is determined, the inspection circuit board 20 can be moved along the track RA toward the display device 10.

[0115] However, as Figure 7 As shown, the inspection circuit board 20 may be arranged on the fixture JI with a torsion error NG1.

[0116] The torsion error NG1 can be detected by connecting the first alignment mark AM1 and the second alignment mark AM2. The first alignment mark AM1 and the second alignment mark AM2 can be detected using a first sensor SE1 (e.g., a vision camera).

[0117] In an embodiment, for example, the first virtual (or imaginary) line L1 connecting the first alignment mark AM1 and the second virtual (or imaginary) line L2 connecting the second alignment mark AM2 may not be parallel to each other. In this case, a torsion error NG1 can be determined to have occurred.

[0118] If the inspection circuit board 20 is inserted into the display device 10 with a twisting error NG1, the display device 10 and / or the inspection circuit board 20 may be damaged.

[0119] In order to minimize or eliminate the torsion error NG1, an apparatus for manufacturing a display device according to embodiments of the present disclosure ( Figure 1 The apparatus 100 for manufacturing display devices can place the inspection circuit board 20 on the fixture JI and determine whether the inspection circuit board 20 is positioned in the correct (or predetermined) position on the fixture JI. Error control can be repeated until it is determined that the inspection circuit board 20 is positioned in the correct position.

[0120] On the other hand, such as Figure 8 As shown, the inspection circuit board 20 may be arranged with a movement distance error NG2.

[0121] Multiple secondary sensors SE2 can be used to detect movement distance errors NG2.

[0122] like Figure 8 As shown, if the virtual line (e.g., Figure 7 If the first virtual line L1 and the second virtual line L2 are parallel to each other, then it can be determined that no such event has occurred. Figure 7 The torsion error NG1 is shown. However, multiple electromagnets EM and multiple protrusions PP are not located in multiple target holes (e.g., Figure 4 In the case where multiple second sensors SE2 in multiple target holes (G) are in contact, the multiple second sensors SE2 can generate specific signals (e.g., current, voltage, or capacitance). In this case, it can be determined that a movement distance error NG2 has occurred.

[0123] In an embodiment, for example, the plurality of second sensors SE2 may include a first second sensor SE21, a second second sensor SE22, and other sensors. In the portion where the first second sensor SE21 and the second second sensor SE22 are provided, the first second sensor SE21 and the second second sensor SE22 detect non-contact between the inspection circuit board 20 and the fixture JI, while the remaining sensors can detect contact between the inspection circuit board 20 and the fixture JI. In this case, it can be determined that the inspection circuit board 20 can be expected to be positioned on the fixture JI at a location where it can move further in the second direction D2.

[0124] When the circuit board 20 is inserted into the display device 10 with the error NG2 in the movement distance, the connector of the display device 10 (e.g., Figure 2 The connector (CNT) may be over- or under-inserted (e.g., in...). Figure 8 In some cases, insufficient insertion may occur. As a result, the inspection process may be unable to proceed due to poor contact, or the display device 10 and / or inspection circuit board 20 may be damaged.

[0125] In order to minimize or eliminate the movement distance error NG2, an apparatus for manufacturing a display device according to embodiments of the present disclosure ( Figure 1 The apparatus 100 for manufacturing display devices can place the inspection circuit board 20 on the fixture JI and determine whether the inspection circuit board 20 is positioned in the correct (or predetermined) position on the fixture JI. Error control can be repeated until it is determined that the inspection circuit board 20 is positioned in the correct position.

[0126] Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 , Figure 15 , Figure 16 , Figure 17 , Figure 18 , Figure 19 , Figure 20 , Figure 21 and Figure 22 It shows the use Figure 1 and Figure 2 A view of the apparatus used to manufacture a display device and the method of manufacturing a display device.

[0127] In the following text, for ease of description, reference will be made to... Figures 9 to 22 We will also refer to this together. Figures 1 to 8 And will omit or simplify the reference above. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 Any repeated detailed descriptions of elements that are the same as or similar to the described elements.

[0128] Reference Figure 9 In an embodiment, the method may include preparing a circuit board for inspection (e.g., inspection circuit board 20) including a plurality of protrusions PP (S100).

[0129] As described above, the apparatus for manufacturing a display device according to embodiments of the present disclosure (e.g., Figure 1 and Figure 2 The apparatus 100 for manufacturing a display device can fasten the inspection circuit board 20 to the display device 10. In an embodiment, the inspection circuit board 20 can be inserted into and fastened to the display device 10 to inspect the display device 10. Therefore, it is possible to check whether the display device 10 is operating properly.

[0130] In an embodiment, the track RA may be positioned on the display panel (e.g., included in...). Figure 1The display panel (PNL) in the display device 10 is positioned between the display device 10 and the inspection circuit board 20. In one embodiment, the inspection circuit board 20 may be mounted on a fixture JI. In another embodiment, the inspection circuit board 20 may be guided to the display panel (PNL) via the fixture JI on the track RA.

[0131] In an embodiment, the inspection circuit board 20 may include a board BLD, a cable CB, and a plurality of protrusions PP.

[0132] In an embodiment, for example, a circuit portion CIP in which multiple lines are formed can be defined in a board BLD.

[0133] The cable CB can be inserted and secured to the connector CNT. While the cable CB connects the board BLD to the display device 10, the inspection process of the display device 10 can be performed.

[0134] In an embodiment, a plurality of protrusions PP may be formed to protrude from the circuit portion CIP of the circuit board 20.

[0135] In one embodiment, the plurality of protrusions PP may comprise a conductive material or a permanent magnet. In another embodiment, for example, the inspection circuit board 20 may comprise plastic. In yet another embodiment, a recess may be defined in the inspection circuit board 20, and the plurality of protrusions PP may be mounted and inserted into the recess.

[0136] Reference Figure 10 In one embodiment, the method may include placing the inspection circuit board 20 on a fixture JI (S200). In another embodiment, the fixture JI may include a bottom portion P1, a support portion P2, a plurality of electromagnets EM, and a plurality of second sensors SE2.

[0137] In one embodiment, the circuit portion CIP of the inspection circuit board 20 may be mounted on the bottom portion P1. In another embodiment, the bottom portion P1 may include insulating material to effectively prevent short circuits in the circuit portion CIP.

[0138] In one embodiment, a plurality of electromagnets EM can generate magnetic force by receiving current from a power source PO. In another embodiment, for example, the plurality of electromagnets EM may comprise a material that generates magnetic force by receiving current. In yet another embodiment, for example, the plurality of electromagnets EM may comprise iron. However, this disclosure is not limited thereto.

[0139] In an embodiment, multiple electromagnets EM of the clamp JI can be coupled concave-convexly to multiple protrusions PP of the inspection circuit board 20.

[0140] In one embodiment, the clamp JI can be positioned on the track RA. In another embodiment, for example, once it is determined that the inspection circuit board 20 is positioned accurately, the inspection circuit board 20 can be moved along the track RA toward the display device 10.

[0141] Reference Figure 4 , Figure 5 , Figure 11 , Figure 12 , Figure 13 and Figure 14 In an embodiment, determining whether the inspection circuit board 20 is positioned correctly (S300) may include: detecting a second alignment mark AM2 located on each of a plurality of electromagnets EM and a first alignment mark AM1 located on each of a plurality of protrusions PP (S312); and determining the degree of tilt of the inspection circuit board 20 by connecting the first alignment mark AM1 and the second alignment mark AM2 (S314).

[0142] In an embodiment, a first alignment mark AM1 may be positioned on each of a plurality of protrusions PP. A second alignment mark AM2 may be positioned on each of a plurality of electromagnets EM. The first alignment mark AM1 and the second alignment mark AM2 may have a cross-shaped shape. A first sensor SE1 may be used to detect the first alignment mark AM1 and the second alignment mark AM2.

[0143] In an embodiment, for example, such as Figure 13 As shown, the inspection circuit board 20 may be arranged on the fixture JI with a torsion error (e.g., Figure 7 The reversal error NG1).

[0144] In an embodiment, for example, the first virtual line L1 connecting the first alignment mark AM1 and the second virtual line L2 connecting the second alignment mark AM2 may not be parallel to each other. In this case, a torsion error NG1 can be determined to have occurred. In other words, in an embodiment, if the first alignment mark AM1 and the second alignment mark AM2 are not positioned in the same straight line, it can be determined that the inspection circuit board 20 is tilted and that the inspection circuit board 20 is not placed in the correct position (S316).

[0145] In this case, the robotic hand (e.g., Figure 1 The robot arm (RBH) lifts the inspection circuit board 20 again and rotates the inspection circuit board 20 by a certain angle AN, and the inspection circuit board 20 can be placed back on the fixture JI.

[0146] Reference Figure 11 , Figure 15 , Figure 16 and Figure 17 In an embodiment, determining whether the inspection circuit board 20 is positioned correctly may include supplying current to a plurality of electromagnets EM (S322), and may include detecting that the plurality of electromagnets EM are not in contact with the protrusion PP (e.g., Figure 4The part that contacts the multiple protrusions PP (i.e., the non-contact part is detected) (S324).

[0147] In this embodiment, multiple electromagnets EM can receive current from a power source PO (indicated by "on" in the figures). The multiple electromagnets EM can generate magnetic force by receiving current.

[0148] In one embodiment, a plurality of second sensors SE2 may be disposed in a plurality of target holes G defined between a plurality of electromagnets EM. The plurality of second sensors SE2 may detect contact between the plurality of electromagnets EM and a plurality of protrusions PP.

[0149] In an embodiment, for example, when magnetic force is generated in a plurality of electromagnets EM, the contact between the plurality of electromagnets EM and the plurality of protrusions PP can be detected.

[0150] In this embodiment, the plurality of second sensors SE2 may be current measurement sensors, magnetic measurement sensors, and touch sensors. These sensors may be used individually or in combination with each other.

[0151] In an embodiment, when detecting the portion of the multiple electromagnets EM that is not in contact with the multiple protrusions, if a current exceeding the reference current range is detected, it can be determined that the inspection circuit board 20 is not placed in the correct position (S326, S328).

[0152] However, this disclosure is not limited thereto.

[0153] In an embodiment, for example, when the button is positioned and the multiple protrusions PP press the button, a signal can be transmitted to the controller to detect contact between the multiple electromagnets EM and the multiple protrusions PP. In this case, contact between the multiple electromagnets EM and the multiple protrusions PP can be detected without generating magnetic force.

[0154] In another embodiment, for example, when detecting portions where multiple electromagnets EM do not contact multiple protrusions PP, if the magnetic force is greater than a threshold or a change in capacitance is detected, it can be determined that the inspection circuit board 20 is not placed in the correct position.

[0155] In an embodiment, the method may include: if it is determined that the inspection circuit board 20 is not positioned correctly, calculating the number of portions where the plurality of electromagnets EM do not contact the plurality of protrusions PP (i.e., the number of non-contact portions) (S326), and calculating a compensation distance CL for moving the inspection circuit board 20 based on the number of non-contact portions. The positional error of the inspection circuit board 20 may be compensated in step S328.

[0156] In an embodiment, for example, the first second sensor SE21 and the second second sensor SE22 can detect non-contact portions between the fixture JI and the inspection circuit board 20. In an embodiment, for example, in Figure 16 In this case, the number of non-contact parts can be four. For ease of explanation, the sensor positioned in the opposite direction to the third direction D3 of the inspection circuit board 20 can be omitted.

[0157] Based on the number of non-contact parts, the controller can determine that the inspection circuit board 20 should move a certain compensation distance CL in the second direction D2. In an embodiment, for example, in Figure 17 In the case where the two target holes G are empty in the second direction D2, the compensation distance CL can be the moving distance to fill the two empty target holes G.

[0158] In this case, the robotic hand (e.g., Figure 1 The robot hand (RBH) can lift the inspection circuit board 20 again and move the inspection circuit board 20 in a straight line by a compensation distance CL, and the inspection circuit board 20 can be placed back on the fixture JI.

[0159] Reference Figure 18 The method may include cutting off the current supplied to the plurality of electromagnets EM when it is determined that the inspection circuit board 20 is not placed in the correct position (S330).

[0160] In an embodiment, for example, under a magnetic force, a positional error of the inspection circuit board 20 can be detected (e.g., Figure 7 Twist error NG1 and / or Figure 8 (The movement distance is incorrect NG2). To compensate for the positional error, the magnet can be removed to lift the inspection circuit board 20 from the fixture JI, and then the inspection circuit board 20 can be repositioned on the fixture JI.

[0161] In an embodiment, for example, the magnetic force can be removed by cutting off the current supplied from the power source PO to the plurality of electromagnets EM (indicated by "off" in the figures).

[0162] However, this disclosure is not limited thereto. In embodiments, for example, where the plurality of protrusions PP include permanent magnets, the polarity of the magnetic force generated from the plurality of electromagnets EM can be controlled to have the same polarity as the permanent magnets. Using the repulsive force between the plurality of protrusions PP and the plurality of electromagnets EM having the same polarity, the clamping of the inspection circuit board 20 can be released from the fixture JI, and the inspection circuit board 20 can be repositioned in another location.

[0163] Reference Figure 18 , Figure 19 and Figure 20If it is determined that the inspection circuit board 20 is not in the correct position, the method can be restarted after the current is cut off, starting from when the inspection circuit board 20 is placed on the fixture JI. In an embodiment, the inspection circuit board 20 can be repositioned on the fixture JI (S200'), and it can be determined whether the inspection circuit board 20 is in the correct position (S300').

[0164] The above process can be repeated until it is confirmed that the inspection circuit board 20 is placed in the correct position.

[0165] Reference Figure 21 and Figure 22 Once it is determined that the inspection circuit board 20 is positioned accurately, the following can be performed: The inspection circuit board 20 can be oriented toward the display device by moving the clamp JI on the track RA (e.g., Figure 1 The display device 10, including the display panel PNL, is moved (S400); and the inspection circuit board 20 is coupled to the display panel PNL (S500).

[0166] The inspection circuit board 20 can be moved toward the display panel PNL while being fixed by multiple electromagnets EM.

[0167] The jig JI can move on the track RA in various ways, such as magnetic levitation or linear motion (LM) guidance.

[0168] The stroke of clamp JI can be stored in the controller. Clamp JI can move the stroke on track RA in the second direction D2.

[0169] In this embodiment, as described above, a laser sensor or similar device may be positioned at the display device 10. The laser sensor can measure the distance between the display device 10 and the inspection circuit board 20 to effectively prevent over-insertion or under-insertion.

[0170] After the inspection circuit board 20 is coupled to the display panel PNL, illumination checks can be performed.

[0171] As described above, when using the apparatus for manufacturing a display device according to embodiments of the present disclosure and the method for manufacturing a display device using the apparatus, the cable (e.g., Figure 1 The CB (Cable Belt) tightening operation can minimize cable tightening errors and ensure consistent quality of cable tightening operations.

[0172] The apparatus for manufacturing a display device according to the embodiments can be applied to the manufacturing process of display devices including computers (e.g., laptops), mobile phones, smartphones, smart panels, portable media players (PMPs), personal digital assistants (PDAs), or Motion Picture Experts Compression Standard Audio Layer 3 (MP3) players.

[0173] This invention should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be exhaustive and complete, and will fully convey the concept of the invention to those skilled in the art.

[0174] Although the invention has been specifically shown and described with reference to embodiments thereof, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit or scope of the invention as defined by the appended claims.

Claims

1. An apparatus for manufacturing a display device, wherein, The device includes: A clamp includes a bottom portion and a plurality of electromagnets, on which a circuit portion of a circuit board is mounted. The plurality of electromagnets are disposed on the bottom portion and spaced apart from each other, wherein the plurality of electromagnets are concave-convexly coupled to a plurality of protrusions of the circuit board, the plurality of protrusions protruding from the circuit portion; and The power source supplies current to the plurality of electromagnets.

2. The device according to claim 1, wherein, The first alignment mark is defined on each of the plurality of protrusions, and The second alignment mark is defined on each of the plurality of electromagnets.

3. The device according to claim 2, wherein, Each of the first alignment mark and the second alignment mark has a cross shape in the plan view.

4. The device according to claim 2, wherein, The device also includes: The first sensor detects the first alignment mark and the second alignment mark.

5. The device according to claim 4, wherein, The first sensor includes a vision camera.

6. The device according to claim 1, wherein, The device also includes: A plurality of second sensors are disposed between the plurality of electromagnets, wherein the plurality of second sensors detect the contact between the plurality of electromagnets and the plurality of protrusions.

7. The device according to claim 6, wherein, The plurality of second sensors include at least one selected from current measurement sensors, magnetic measurement sensors, and touch sensors.

8. The device according to claim 1, in, The circuit board is an inspection circuit board that is inserted into and secured to the display panel of the display device on the stage for inspecting the display panel. The device further includes a track disposed on the stage between the display panel and the circuit board on the clamp to guide the clamp on the stage to the display panel.

9. The device according to claim 1, wherein, The plurality of protrusions include conductive materials or permanent magnets.

10. The device according to claim 1, wherein, The bottom portion includes insulating material.

11. A method for manufacturing a display device, wherein, The method includes: Prepare a circuit board, the circuit board including multiple protrusions; The circuit board is placed on a clamp, the clamp including a bottom portion and a plurality of electromagnets spaced apart from each other disposed on the bottom portion; and Determine whether the circuit board is placed in the correct position.

12. The method according to claim 11, wherein, Determining whether the circuit board is placed in the exact location includes: Detecting a second alignment mark defined on each of the plurality of electromagnets and a first alignment mark defined on each of the plurality of protrusions; and The degree of tilt of the circuit board is determined based on the first alignment mark and the second alignment mark.

13. The method according to claim 12, wherein, When it is detected that the first alignment mark and the second alignment mark are not positioned in the same straight line, it is determined that the circuit board is tilted and the circuit board is not placed in the accurate position.

14. The method according to claim 11, wherein, Determining whether the circuit board is placed in the accurate position includes: detecting non-contact portions where the plurality of electromagnets and the plurality of protrusions do not contact each other.

15. The method according to claim 14, wherein, The method further includes: Before detecting the non-contact portion, current is supplied to the plurality of electromagnets.

16. The method of claim 14, wherein, The method further includes: Detect the number of the non-contact parts; and The compensation distance of the circuit board is calculated based on the number of the non-contact portions.

17. The method according to claim 15, wherein, The method further includes: When it is determined that the circuit board is not placed in the accurate position, the current supplied to the plurality of electromagnets is cut off.

18. The method according to claim 17, wherein, The method further includes: when it is determined that the circuit board is not placed in the accurate position, performing the step of placing the circuit board on the fixture again after cutting off the current.

19. The method according to claim 11, in, The method further includes: when the circuit board is determined to be placed in the accurate position, coupling the circuit board to the display panel of the display device.

20. The method according to claim 19, wherein, The method further includes: Before coupling the circuit board to the display panel, the clamp is moved on the track to move the circuit board toward the display panel.

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