CN111798776A - Two-side alignment and inspection device for display panel - Google Patents
Two-side alignment and inspection device for display panel Download PDFInfo
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- CN111798776A CN111798776A CN202010249352.6A CN202010249352A CN111798776A CN 111798776 A CN111798776 A CN 111798776A CN 202010249352 A CN202010249352 A CN 202010249352A CN 111798776 A CN111798776 A CN 111798776A
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/70—Testing, e.g. accelerated lifetime tests
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/1201—Manufacture or treatment
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
Abstract
An embodiment of the present invention provides a two-side alignment and inspection apparatus for a display panel having a first signal transmission plate on one side and a second signal transmission plate on the other side for transmitting an electrical signal. The both sides are aimed at and are checked the device and include: a base on which the display panel is placed so as to inspect the display panel; a first contact unit which positions the first signal transmission plate on the base and applies an electric signal for inspection; and a second contact unit which moves in the X-axis direction, the Y-axis direction, and the rotation of the base about the Z-axis as a rotation axis, aligns and contacts with the second signal transmission plate, and applies an electrical signal for inspection.
Description
Technical Field
The present invention relates to a device for aligning and inspecting both sides of a display panel, and more particularly, to a device for aligning and inspecting both sides of a display panel, which can align and inspect a display panel by performing a parallel and rotational movement of a contact unit.
Background
Display panels are widely used in Televisions (TVs), monitors, mobile communication terminals, and the like.
As a representative Display Panel, a Liquid Crystal Display (LCD) Panel is used, but recently, the usage rate of an Active Mode Organic light emitting Diode (AMOLED Panel) is increasing.
In general, an active organic light emitting diode panel is a display device that can display a desired image by individually supplying a data signal based on image information to a plurality of pixels arranged in an active matrix (active matrix) form to control the plurality of pixels.
The application range of the active organic light emitting diode panel is gradually enlarged due to its features of light weight, thin shape, low power consumption driving, etc., and recently, it is widely used as a display unit suitable for portable terminals such as tablet computers, portable audio devices, and smart phones.
Such a display panel undergoes a test process of a plurality of steps in the production process, and in such a test process, the presence or absence of an abnormality such as a lighting inspection can be performed in a state where the display panel is placed on a tray (Pallet).
Generally, a display panel has a Flexible Printed Circuit Board (FPCB) or a signal transfer plate for transferring signals at one side to display an image.
The tray on which the display panel is placed is provided with contactors loaded or unloaded by a lever to be able to apply various signals while applying power to the display panel, and the contactors may include a flexible printed circuit board of the display panel or a probe or a flexible printed circuit board electrically contacted with a signal transfer board.
For example, when the lever is pressed to open the contactor, the display panel is loaded on the tray, and on the tray, the signal transfer plate of the display panel is aligned with the tray. Then, if the pushed state of the lever is released, electrical contact is made between the contactor that has been aligned with the tray and the signal transfer plate of the display panel, and the display panel can be inspected.
However, since the display panel is manufactured in various specifications according to its use application, there is a problem in that the display panel is effectively inspected by a conventional inspection apparatus.
In particular, since a high-resolution medium-sized panel needs to operate at high speed and to suppress signal attenuation, it is increasingly the case that a signal transmission plate is provided on one side and the other side in order to apply signals to the upper and lower sides of the display panel.
However, as described above, since the conventional inspection apparatus has a structure in which only one side of the display panel is touched, it is not easy to inspect the display panel having the signal transmission plates on both sides, and it is necessary to touch both sides of the display panel.
Further, if the inspection is performed with the contactors provided on both sides of the display panel, the position of the signal transmission plate on one side of the display panel is fixed when the signal transmission plate and the contactor are aligned and contacted with each other, and therefore, it is difficult to perform the parallel rotational movement of the signal transmission plate on the other side in order to align the signal transmission plate with the other contactor, which causes a problem that the inspection is difficult.
Disclosure of Invention
Problems to be solved by the invention
The present invention has been made in an effort to provide a both-side aligning and inspecting apparatus for a display panel, which can perform highly reliable inspection by easily and conveniently aligning contact portions on both sides of the display panel having signal transmission plates on both sides.
The technical problems to be solved by the present invention are not limited to the above-mentioned technical problems, and other technical problems not mentioned can be clearly understood by those skilled in the art to which the present invention pertains from the following descriptions.
Means for solving the problems
To achieve the above object, an embodiment of the present invention provides a two-side alignment and inspection apparatus for a display panel having a first signal transfer plate on one side and a second signal transfer plate on the other side for transferring an electrical signal. The both sides are aimed at and are checked the device and include: placing the display panel so as to inspect the display panel; a first contact unit which positions the first signal transmission plate on the base and applies an electric signal for inspection; and a second contact unit which moves in the X-axis direction, the Y-axis direction, and the rotation of the base about the Z-axis as a rotation axis, aligns and contacts with the second signal transmission plate, and applies an electrical signal for inspection.
In an embodiment of the present invention, the second contact unit may include: a contactor part contacting with the second signal transmission plate during inspection; and a moving part allowing the X-axis direction movement, the Y-axis direction movement, and the rotational movement within a predetermined range on the base for alignment with the second signal transmission plate.
In an embodiment of the present invention, the moving portion may be combined with the base and the contactor.
In an embodiment of the present invention, the first contact unit may include: a first jig for positioning the first signal transmission plate in the first slide portion and for releasing the first signal transmission plate from the first slide portion; a first supporter combined with the base to form a guide groove for inserting a part of the first clamp, for guiding the lifting movement of the first clamp; and a lever coupled to the first supporter to lift the first clamp with an external force applied thereto.
In an embodiment of the present invention, the contactor portion of the second contact unit may include: a second clamp for positioning the base on the second signal transmission plate and for releasing the positioning of the base from the second signal transmission plate; a control hook formed on the second clamp, and applying an external force for moving the contactor within an allowable range of the moving part; a second support member which forms a guide groove for inserting a part of the second clamp and guides the lifting movement of the second clamp; and a spring interposed between the second clamp and the second supporter, and compressed by the second clamp and the second supporter when the second clamp is lifted.
In an embodiment of the present invention, the moving part may include: a rotation moving unit coupled to the second supporter and allowing rotation of the second supporter within a predetermined range using a Z-axis as a rotation axis by an external force applied to the control hook; an X-axis moving unit coupled to the rotational moving unit, the X-axis moving unit allowing movement of the rotational moving unit within a predetermined range along an X-axis direction on the base; a Y-axis moving unit coupled to the X-axis moving unit, the Y-axis moving unit being configured to allow movement of the X-axis moving unit within a predetermined range along a Y-axis direction on the base; and a support part coupled to the Y-axis moving part and coupled to the base.
In an embodiment of the present invention, the second jig may include: a pressurizing part extending along the X-axis direction to pressurize the second signal transmission plate; and a plurality of guide protrusions protruding from the pressurizing portion and inserted into the plurality of guide grooves of the second supporter, respectively, wherein the control hook is formed on an upper surface of at least one of the plurality of guide protrusions, and the spring is interposed between the plurality of guide grooves and between the second supporter and the pressurizing portion.
In an embodiment of the present invention, the two-side aligning and inspecting apparatus of the display panel may further include: a first operation part for pushing and releasing the lever of the first contact unit; and a second operation part aligning the contactor part of the second contact unit with the second signal transmission plate.
In an embodiment of the present invention, the second operation unit includes: a guide rail provided on the upper side of the table top on which the base is provided; and a control unit in the form of a robot arm that moves along the guide rail and has a gripper portion for gripping the control hook, wherein the contactor portion of the second contact unit is moved within a range that allows the movement portion.
In an embodiment of the present invention, the base may include: a lower plate disposed on the table; a first sliding part which is slidably coupled to the lower plate and supports the first signal transmission plate during inspection, wherein the first contact unit is coupled to the first sliding part; and a second sliding portion slidably coupled to the lower plate so as to face the first sliding portion, the second sliding portion supporting the second signal transmission plate during inspection, the second sliding portion being coupled to the second contact unit.
Effects of the invention
According to the embodiments of the present invention, it is possible to provide a both-side aligning and inspecting apparatus for a display panel, which can perform highly reliable inspection by easily and conveniently aligning a contact portion of a contact unit with a display panel having signal transmission plates on both sides thereof, respectively, due to a special structure of the contact unit and an operating portion that can perform translation and rotation.
The effects of the present invention are not limited to the above-described effects, but include all effects that can be derived from the detailed description of the invention or the structure of the invention described in the claims.
Drawings
Fig. 1 to 3 are views showing an example of a both-side aligning and inspecting apparatus according to an embodiment of the present invention.
Fig. 4 is a diagram showing an example of the second contact unit of the both-side alignment and inspection apparatus.
Fig. 5 and 6 are views for explaining the first and second operating parts of the both-side aligning and inspecting apparatus.
Fig. 7 is a diagram showing an example of the first operation unit of the both-side alignment and inspection apparatus.
Fig. 8 is a diagram showing an example of the second operation unit of the both-side alignment and inspection apparatus.
Fig. 9 is a diagram showing an example of the control means of the second operation unit.
Fig. 10 is a flowchart for explaining an example of an operation method of the both-side aligning and inspecting apparatus according to the embodiment of the present invention.
Fig. 11 is a diagram showing an example of a display panel having signal transmission plates on one side and the other side.
Fig. 12 is a diagram showing an example of alignment states of the display panel, the first contact unit, and the second contact unit viewed through the first alignment see-through window and the second alignment see-through window.
Description of reference numerals:
1: two-side alignment and inspection device
50: display panel
51: first signal transmission board
53: second signal transmission board
100: base seat
101: lower plate
102: first sliding part
104: second sliding part
110: first alignment perspective window
130: second alignment perspective window
200: first contact unit
210: first clamp
230: first support member
250: lever
270: spring
300: second contact unit
303: contactor part
305: moving part
310: second clamp
330: second support member
350: control hook
360: x-axis moving part
370: spring
380: y-axis moving part
400: a first operation part
410: first transfer module
430: lever pushing part
500: second operation part
510: second transfer module
530: control unit
531: x-axis control unit
533: y-axis control unit
535: rotation control unit
537: clamp part
600: body
710. 730: camera part
800: a control unit.
Detailed Description
The present invention will be described below with reference to the accompanying drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to accurately explain the present invention in the drawings, portions that are not related to the description are omitted, and like reference numerals are given to like portions throughout the specification.
Throughout the specification, when it is stated that one portion is "connected (coupled, contacted, combined)" with another portion, this includes a case of "direct connection" and a case of "indirect connection" in which other components are present between the two. Further, when it is indicated that one portion "includes" another structural element, unless otherwise specified, this does not mean that the other structural element is excluded, but may further include the other structural element.
The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the specification, the singular expressions include the plural expressions unless the context clearly dictates otherwise. Furthermore, the terms "comprises" or "comprising" or the like are intended to specify the presence of stated features, integers, steps, acts, elements, components, or groups thereof, but are not intended to preclude the presence or addition of one or more other features, integers, steps, acts, elements, components, or groups thereof. In the present specification, "connected" is used to include both indirect connection and direct connection of a plurality of components.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 to 3 are views showing an example of a both-side aligning and inspecting apparatus according to an embodiment of the present invention.
The both-side aligning and inspecting apparatus of the display panel may perform alignment and inspection on both sides of the display panel having the first signal transfer plate 51 on one side and the second signal transfer plate 53 on the other side in order to transfer electric signals. For this, the both-side aligning and inspecting apparatus may have two contact units, one of which first positions the first signal transfer plate 51, and the other of which performs X-axis direction movement, Y-axis direction movement, and rotational movement with the Z-axis as a rotation axis with respect to the second signal transfer plate 53, thereby performing alignment.
For example, the both-side aligning and inspecting apparatus may include a base 100 on which the display panel is placed so as to inspect the display panel, a first contact unit 200, and a second contact unit 300.
The first contact unit 200 positions the first signal transfer plate 51 at the base 100 and may apply an electrical signal for inspection.
The second contact unit 300 moves in the X-axis direction, the Y-axis direction, and the rotation about the Z-axis as a rotation axis on the base 100 by an external force, and is aligned with and brought into contact with the second signal transmission plate 53, whereby an electric signal for inspection can be applied.
The second contact unit 300 may include a contactor portion 303 and a moving portion 305 which are brought into contact with the second signal transfer plate 53 at the time of inspection.
The moving unit 305 allows the contactor 303 to perform X-axis movement, Y-axis movement, and rotational movement about the Z-axis as a rotation axis within a predetermined range on the base 100 in order to align with the second signal transmission plate 53. In the present embodiment, the moving portion 305 may be combined with the base 100 and the contact portion 303.
The first contact unit 200 may include a first clamp 210 to position the first signal transfer plate 51 at the base 100 and to release the first signal transfer plate 51 from the base 100, a first support 230, and a lever 250.
The first support 230 is combined with the base 100 and forms a guide groove into which a portion of the first clamp 210 is inserted, to guide the ascending and descending movement of the first clamp 210.
The lever 250 is combined with the first support 230 to lift and lower the first clamp 210 as an external force is applied.
Referring to fig. 3, the chassis 100 may include: a lower plate 101 provided on an upper surface of the main body (see fig. 5); a first sliding portion 102 slidably coupled to the lower plate 101; and a second slide portion 104 slidably coupled to the lower plate 101 so as to face the first slide portion.
The first sliding portion 102 may support the first signal transfer plate 51 when inspecting the display panel. The first contact unit 200 is detachably coupled to the first sliding portion 102.
The second sliding portion 104 may support the second signal transfer plate 53 when inspecting the display panel. The second contact unit 300 is detachably coupled to the second sliding portion 104.
The first sliding part 102 may include a first alignment perspective window 110 (refer to fig. 12) for displaying a first side alignment state. The second slider 104 may include a second alignment perspective window 130 for displaying a second side alignment status.
An opening 108 exposing the first and second alignment windows 110 and 130 may be formed in the lower plate 101 of the base 100.
A guide rail 106 for sliding is provided on an edge of the upper surface of the lower plate 101, and the first sliding portion 102 and the second sliding portion 104 are slidable on the guide rail 106.
The interval between the first sliding portion 102 and the second sliding portion 104 may be manually adjusted, or the interval between the first sliding portion 102 and the second sliding portion 104 may be adjusted by providing an actuator in the first sliding portion 102, the second sliding portion 104, or the lower plate 101.
Therefore, the interval between the first and second contact units 200 and 300 can be adjusted by adjusting the interval between the first and second sliding portions 102 and 104.
If the size of the display panel to be inspected changes, for example, if the distance between the two sides of the display panel having the signal transmission plates on the two sides changes, the inspection can be performed by changing the distance between the first contact unit 200 aligned with the first signal transmission plate 51 and the second contact unit 300 aligned with the second signal transmission plate 53 as described above.
Referring to fig. 1 to 3, the first contact unit 200 may include a first clamp 210, a first support 230, and a lever 250. The first jig 210 can position the first signal transmission plate 51 at the first sliding portion 102 and release the first signal transmission plate 51 from the first sliding portion 102.
The first supporting member 230 is disposed on the first sliding portion 102 and can have
A font support structure. As shown in fig. 1 to 3, a plurality of guide grooves for guiding the up-and-down movement of the first clamp 210 and for setting the lever 250 may be formed at the first support 230. The first supporting member 230 can be coupled to the first sliding portion 102 by Indexing pins (not shown), and can be coupled to the first sliding portion 102 in a One Touch (One Touch) manner in a detachable and assembled manner.
In this embodiment, the first clamp 210 may include: a plate-shaped bar (bar) extending lengthwise along the length direction of the first support 230; the plurality of protrusions having a "convex" shape are formed by protruding from the plate-like rod. Such a plurality of protrusions may be respectively provided to be inserted into a plurality of guide grooves of the first support 230.
A contact plate for applying an electrical signal to the display panel 50 may be attached to a lower surface of the first jig 210. As the contact plate, various contactors such as a Flexible Printed Circuit Board (FPCB), a Micro Electro Mechanical system Contactor (Micro Electro Mechanical Systems Contactor), a blade Contactor (BladeContactor), and a Pin Contactor (Pin Contactor) may be applied as necessary.
When a method of heating the panel from the outside by a heater while lighting is employed in the case of aging of the panel, the flexible printed circuit board cannot be used as a contact board due to heat of the heater. That is, since the flexible printed circuit board has poor heat resistance and is severely thermally deformed, it is applicable to a blade-type or pin-type contactor when a burn-in operation of a heating method is required.
In addition, a Pad Pitch (Pad Pitch) of a Panel (Panel) which is generally mass-produced is about 200um Pitch and 150um Pad width, and in the case of a high-resolution Panel, the Pad width and the Pitch (Pitch) are further minute, and in order to cope with this, a micro electro mechanical system flexible printed circuit board (MEMS FPCB) contactor is applicable.
When the touch panel of the fpc type, which is a flexible material, is applied, a buffer material such as silicon or polyurethane may be inserted into a lower portion of the first jig 210 where a Contact end of the touch panel is located to improve Contact (Contact) with a signal transfer plate of the display panel 50.
In the present embodiment, the first jig 210 is formed integrally, but a plurality of first jigs 210 may be provided corresponding to the respective guide grooves.
Further, springs 270 inserted into holes formed in the first supporters 230 are provided on the left and right sides of the respective protruding portions of the first jig 210, and the first jig 210 is pressed downward, so that the contact force between the contact plate 215 (see fig. 12) and the first signal transmission plate 51 of the display panel 50 can be secured by the elasticity thereof.
The lever 250 is provided on the back surface of the first support 230 with reference to the guide groove of the first support 230, and a part of the end of the lever 250 is engaged with a lower portion of a bearing (not shown) provided in the first jig 210 through a space opened to a side portion of the first jig 210, thereby moving the first jig 210 up and down. The bearing reduces friction with the first clamp 210 due to repeated motions of the lever 250, thereby reducing fatigue and preventing mechanical damage.
Fig. 4 is a diagram showing an example of the second contact unit 300 of the both-side aligning and inspecting apparatus.
As described above, the second contact unit 300 may include the contactor portion 303 and the moving portion 305.
Referring to fig. 1 to 4, the contactor 303 of the second contact unit 300 may include a second jig 310, a control hook 350 formed at the second jig 310, a second supporter 330, and a spring 370.
The second support 330 may also have a shape similar to the first support 230. A plurality of guide grooves are formed in the second supporter 330, the second jig 310 is positioned between the second supporter 330 and the second sliding part 104, and a plurality of protrusions of a concavo-convex shape of the second jig 310 may be inserted into the plurality of guide grooves to be guided.
The spring 370 may be interposed between the second clamp 310 and the second support 330, and may provide a pressing force and a restoring force during the elevating motion of the second clamp 310.
Among the plurality of protrusions of the concave-convex shape of the second jig 310, a protrusion substantially at the center may be formed with a control hook 350 protruding further upward. The upper end of the control hook 350 has a locking structure, and the side surface of the control hook 350 has an angled shape, so that the second operation part 500 described later can easily grip the control hook 350.
Since the control hook 350 is formed integrally with the second jig 310 or coupled to the second jig 310, when the control hook 350 is pulled upward, the second jig 310 is lifted up along the guide groove and receives the force of the spring 370. When the pulling force of the pulling control hook 350 is released, the second jig 310 can be lowered along the guide groove by the restoring force of the springs 270 and 370.
The moving part 305 may include a supporting part 307, a Y-axis moving part 380, an X-axis moving part 360, and a rotation moving part 390.
The support portion 307 is detachably combined with the second sliding portion 104.
The Y-axis moving part 380 may be combined with the supporting part 307.
The X-axis moving unit 360 may be coupled to the Y-axis moving unit 380, and the Y-axis moving unit 380 may allow the X-axis moving unit 360 to move forward and backward within a predetermined range along the Y-axis direction.
The rotational movement part 390 may be combined with the X-axis movement part 360 and the second support 330.
The X-axis moving unit 360 may allow the rotational moving unit 390 to move forward and backward within a predetermined range along the X-axis direction.
The rotation moving part 390 may allow the second supporter 330 to rotate within a predetermined range using the Z-axis as a rotation axis by an external force applied to the control hook 350.
For example, the X-axis moving part 360 may include an X-axis direction sliding groove and an X-axis sliding protrusion inserted into the X-axis sliding groove to slide. The Y-axis moving part 380 may include a Y-axis direction sliding groove and a Y-axis sliding protrusion inserted into the Y-axis sliding groove to slide.
The supporting portion 307 may include a fixing hole portion and a fixing pin penetrating the fixing hole portion to be coupled to the base 100, and fixing the supporting portion 307 to the base 100.
Therefore, the second support 330 is movable in the X-axis and Y-axis directions within the allowable ranges of the X-axis moving unit 360 and the Y-axis moving unit 380, and is rotatable about the Z-axis as a rotation axis within the allowable range of the rotation moving unit 390.
Fig. 5 and 6 are views for explaining the first and second operating units 400 and 500 of the both-side aligning and inspecting apparatus. Fig. 7 is a diagram showing an example of the first operation unit 400 of the both-side alignment and inspection apparatus. Fig. 8 is a diagram showing an example of the second operation unit 500 of the both-side aligning and inspecting apparatus.
Referring to fig. 5 to 8, the two-side aligning and inspecting apparatus may further include a main body 600, a first camera unit 710, a second camera unit 730, and a control unit 800.
The body 600 may be disposed on a table (not shown). The base 100 is not directly fixed to the upper surface of the body 600, and the position of the base on the body 600 may be mechanically restricted. Or, unlike this, the base 100 may be fixed to the upper surface of the body 600 by a coupling member such as a screw or a bolt.
The image capturing units 710 and 730 and the control unit 800 may be disposed inside the main body 600.
The first photographing part 710 may photograph the first alignment transparent window 110 at a lower portion of the first sliding part 102. The second camera 730 can photograph the second alignment transparent window 130 at a lower portion of the second sliding portion 104.
The controller may receive image information captured by the first and second image capturing units 710 and 730, and transmit signals for burn-in inspection or lighting inspection to the first and second signal transmission plates 51 and 53 through the first and second contact units 200 and 300, respectively.
The both-side aligning and inspecting apparatus may further include a first operating part 400 and a second operating part 500.
The first operating part 400 may push and release the lever 250 pushing the first contact unit 200. The first operating part 400 may include a first transfer module 410 and a Lever pushing part 430(Lever Push Unit).
The first transfer module 410 may include a guide rail extending in the X-axis direction.
The lever pushing unit 430 is mounted on the first transfer module 410 and is movable vertically (z) and horizontally (x).
The control unit 800 moves the lever pushing unit 430 to a target position on the X axis according to the input instruction, lowers the lever pushing unit 430 to press the lever 250, and raises the first jig 210 to form a space for the first signal transmission plate 51 of the display panel 50. As the lever pushing part 430 ascends, the first clamp 210 is restored by the spring 270 and may be positioned at the first sliding part 102 while contacting the first signal transfer plate 51.
Although fig. 7 shows a state where one display panel 50 is inspected, a plurality of first contact units 200 and second contact units 300 may be arranged along the longitudinal direction, and thus, a plurality of display panels 50 may be inspected together.
When the display panel 50 is mounted on the base 100, the second operation portion 500 may move the second contact unit 300 backward with respect to the first contact unit 200 within a predetermined range in order to prevent interference with the display panel 50. In this state, the second operating part 500 may move the second contact unit 300 within a predetermined range in order to align and electrically contact the second contact unit 300 with the second signal transfer plate 53 of the mounted display panel 50.
In the present embodiment, as shown in fig. 5, the first contact unit 200 is pre-aligned with the base 100, the first signal transfer plate 51 of the display panel 50 is loaded to the base 100 to be aligned with the first contact unit 200, and after the display panel 50 is aligned with the first contact unit 200, as shown in fig. 6, the second contact unit 300 may be aligned with the second signal transfer plate 53.
The main body 600 may have a command input unit (not shown). The instruction input portion may receive an operation instruction for checking the display panel 50. The operations of the first and second operation portions 400 and 500, i.e., the alignment of the first and second contact units 200 and 300 and the contact operation (e.g., pinching) with respect to the signal transmission plates 51 and 53, can be instructed through a plurality of input buttons of the command input portion.
Fig. 9 is a diagram showing an example of the control unit of the second operation unit 500.
The second operating part 500 may include a second transfer module 510 and a control unit 530.
The second transfer module 510 may include a guide rail extending in the X-axis direction.
The control unit 530 is mounted on the second transfer module 510 and is movable vertically (z) and horizontally (x).
The control unit 530 may have a structure similar to a robot arm. The control unit 530 may include an X-axis control part 531, a Y-axis control part 533, a rotation control part 535, and a clamp part 537. The X-axis control unit 531, the Y-axis control unit 533, the rotation control unit 535, and the clamp unit 537 can be driven by an actuator such as a motor.
For example, the X-axis controller 531 is attached to the second transfer module 510, and the X-axis controller 531 is driven to move horizontally (X) relative to the second transfer module 510.
The Y-axis control unit 533 is coupled to the X-axis control unit 531 and is movable in the Y-axis direction.
The rotation control unit 535 is connected to the lower end of the Y-axis control unit 533 and can rotate about the Z-axis as a rotation axis.
The clip portion 537 may be coupled to a lower end of the rotation control portion 535, have a clip shape that can clip the control hook 350 of the second contact unit 300, and may have an angled clip surface to match the angled shape of the side surface of the control hook 350.
Fig. 10 is a flowchart for explaining an example of an operation method of the both-side aligning and inspecting apparatus according to the embodiment of the present invention. Fig. 11 is a diagram showing an example of a display panel having signal transmission plates on one side and the other side, respectively. Fig. 12 is a diagram illustrating an example of an alignment state of the display panel, the first contact unit 200, and the second contact unit 300 viewed through the first alignment transparent window 110 and the second alignment transparent window 130.
The method for inspecting a display panel using the both-side aligning and inspecting apparatus 1 according to the embodiment of the present invention is described.
First, a contact plate suitable for inspection may be mounted on a lower surface of the first jig 210 of the first contact unit 200 (step S101). Thereafter, the first contact unit 200 can be maintained in a clamped state in a state where the lever 250 is lifted.
If the size of the display panel to be inspected is changed, for example, the first sliding portion 102 and the second sliding portion 104 are separated by a necessary distance, and the first sliding portion 102 and the second sliding portion 104 can be fixed to the lower plate 101 by a member such as a pin. The movement of the first and second sliding portions 102 and 104 may also be performed manually or by means of an actuator.
Then, the image pickup part 710 may Capture (Capture) the position of the contact plate 215 of the first contact unit 200 in the clamped state through the first alignment see-through window 110 at the lower portion of the first sliding part 102 (step S102).
Then, a space in which the display panel 50 can be mounted is formed.
For example, the first operating portion 400 lowers the lever pushing portion 430 to press the lever 250, thereby raising the first jig 210 to which the contact plate is mounted (step S103).
Then, the second operation portion 500 is operated, and the control unit 530 pulls up and retreats the control hook 350 of the second contact unit 300 (step S104).
When the display panel 50 is mounted on the base 100, the second operating unit 500 may move the second contact unit 300 backward with respect to the first contact unit 200 within a predetermined range in order to prevent interference with the display panel 50. The second operating part 500 may clamp the control hook of the second contact unit 300 and move the second supporter 330 within a range allowed by the moving part.
For this movement, the second support 330 can be moved in the X-axis and Y-axis directions while the second operating portion 500 slightly pulls the control hook 350 in the height direction (Z direction), that is, while the second clamp 310 is lifted.
The second support 330 can be rotated in a state where the second operation unit 500 holds the control hook 350. That is, according to the second operation unit 500, the second support 330 (and also, the second jig 310) can be linearly moved in the X-axis and the Y-axis directions and can be rotated about the Z-axis as a rotation axis.
Thus, a space in which the display panel 50 can be mounted can be formed.
Then, the display panel 50 is loaded by a transfer device (not shown), and the first signal transfer plate 51 may be automatically aligned with the contact plate of the first contact unit 200 (step S105).
Since a high-resolution mid-sized panel needs to operate at high speed and to suppress signal attenuation, a configuration having signal transmission plates 51 and 53 on one side and the other side is increasingly employed in order to apply signals to both upper and lower sides of the display panel 50. As shown in fig. 11, an alignment mark 55 may be formed in such a signal transfer plate.
Fig. 12 illustrates a state of the contact plate 215 attached to the lower surface of the first jig 210 of the first contact unit 200 in a state where the lever 250 of the first contact unit 200 is released from being pushed, as viewed through the first alignment perspective window 110.
The first contact unit 200 is aligned with a reference point of the base 100, an alignment mark formed on the transparent window, and the like in advance, and the image pickup part 710 photographs the contact plate 215 through the first alignment transparent window 110 and provides the photographed image to the control part 800, so that such an aligned state can be confirmed.
The above-described transfer device may be configured using a mechanism that moves along a guide rail toward the X-axis, the Y-axis, and the Z-axis, or may be generally configured as a robot system having a transfer robot, which is a general matter, and thus a detailed description thereof will be omitted.
The control unit 800 controls the transfer device using image information about the position of the contact plate of the first contact unit 200, so that the display panel 50 can be aligned with the first contact unit 200.
Then, the second alignment transparent window 130 can image the second signal transmission plate 53 of the display panel 50 through the image pickup unit 730 and provide the image to the control unit 800.
Next, the second contact unit 300 is horizontally moved and rotated to be aligned and clamped (step S106).
The second operating part 500 may move the second contact unit 300 within a predetermined range in order to align and electrically contact the second contact unit 300 with the second signal transfer plate 53 of the loaded display panel 50.
For example, the second operating part 500 operates such that the control unit 530 operates the X-axis control part 531, the Y-axis control part 533, the rotation control part 535, and the clamp part 537, whereby the contact plate 315 of the second contact unit 300 can be aligned on the second signal transfer plate 53.
When the clamp portion 537 releases the control hook 350, the second clamp 310 is restored by the springs 270 and 370, and the second signal transmission plate 53 is held in contact with the contact plate of the second contact unit 300.
The image pickup part 730 captures the position of the second signal transfer plate 53 of the display panel 50 through the second alignment transparent window 130, and when the second touch unit 300 is aligned, may provide a captured image related to the position of the second signal transfer plate 53.
Then, various inspections such as burn-in inspection and lighting inspection can be performed by applying an electric signal to the display panel 50 through the first and second contact units 300 (step S107).
The control unit 800 controls the operation of each of the above-described units or units for inspecting the display panel 50 of the two-side inspection apparatus 1, and may store a program for the control.
The control part 800 may be connected to a Printed Circuit Board (PCB), and performs an inspection such as burn-in work and lighting inspection on the display panel 50 by applying an electrical signal to a contact unit connected for each channel.
When the inspection is completed, the clamping of the first contact unit 200 and the second contact unit 300 is released, and the display panel 50 may be unloaded from the base 100.
When there is no more display panel 50 to be inspected or a stop operation instruction is received, the two-side inspection device 1 may end the inspection (step S108).
On the contrary, if there is a display panel 50 to be inspected, the display panel 50 for the next inspection can be automatically loaded into the both-side aligning and inspecting apparatus 1 (step S109).
As described above, according to the both-side aligning and inspecting apparatus 1 of the present embodiment, in order to perform both-side inspection of the display panel 50 having the signal transmission plates on both sides or a plurality of sides, one side is held by the first contact unit, and the other side is aligned by horizontally and rotationally moving the second contact unit, so that both-side inspection can be simply performed, both sides of the display panel of various sizes can be inspected in an automated state by one apparatus, and highly reliable operation can be performed.
The above description of the present invention is intended to be illustrative, and it will be understood by those skilled in the art that the present invention may be easily modified into other embodiments without changing the technical idea or essential features of the present invention. It is therefore to be understood that the above described embodiments are illustrative in all respects, and not restrictive. For example, each component described as a single type may be implemented as a dispersion, and similarly, components described as a dispersion may be implemented as a combination.
The scope of the present invention is shown by the claims to be described later, and all modifications and variations derived from the meaning and scope of the claims and their equivalents are to be interpreted as being included in the scope of the present invention.
Claims (10)
1. A both sides aligning and inspecting apparatus of a display panel having a first signal transfer plate at one side and a second signal transfer plate at the other side for transferring an electric signal, comprising:
a base on which the display panel is placed so as to inspect the display panel;
a first contact unit which positions the first signal transfer board at the base and applies an electrical signal for inspection; and
and a second contact unit which moves on the base in the X-axis direction, the Y-axis direction, and the rotation with the Z-axis as the rotation axis, aligns and contacts with the second signal transmission plate, and applies an electrical signal for inspection.
2. The apparatus of claim 1, wherein the second contact unit comprises:
a contactor part contacting the second signal transmission plate during inspection; and
and a moving part allowing the X-axis direction movement, the Y-axis direction movement, and the rotational movement within a predetermined range on the base for alignment with the second signal transmission plate.
3. The apparatus of claim 2, wherein the moving part is combined with the base and the contactor part.
4. The apparatus of claim 1, wherein the first contact unit comprises:
a first clamp that positions and releases fixing of the first signal transmission plate in the first sliding portion;
a first support combined with the base to form a guide groove into which a portion of the first clamp is inserted, for guiding the lifting movement of the first clamp; and
and the lever is combined with the first supporting piece and enables the first clamp to ascend and descend along with the application of external force.
5. The both-side aligning and inspecting apparatus of a display panel according to claim 2, wherein the contactor portion of the second contact unit includes:
a second clamp to position and to release the base to and from the second signal transfer board;
a control hook formed on the second clamp, and applying an external force for moving the contactor within an allowable range of the moving part;
a second supporter forming a guide groove into which a portion of the second jig is inserted, for guiding the elevating movement of the second jig;
a spring interposed between the second clamp and the second support, compressed by the second clamp and the second support when the second clamp is lifted and lowered.
6. The apparatus for both-side alignment and inspection of a display panel according to claim 5, wherein the moving part comprises:
a rotation moving unit coupled to the second supporter and allowing rotation of the second supporter within a predetermined range using a Z-axis as a rotation axis by an external force applied to the control hook;
an X-axis moving unit coupled to the rotational moving unit, the X-axis moving unit allowing movement of the rotational moving unit within a predetermined range along an X-axis direction on the base;
a Y-axis moving unit coupled to the X-axis moving unit, the X-axis moving unit being allowed to move within a predetermined range along a Y-axis direction on the base; and
and a support part coupled to the Y-axis moving part and coupled to the base.
7. The two-side aligning and inspecting apparatus of a display panel according to claim 5,
the second clamp includes:
a pressurizing part extending along the X-axis direction to pressurize the second signal transmission plate; and
a plurality of guide protrusions protruding from the pressing part and respectively inserted into the plurality of guide grooves of the second supporter,
the control hook is formed on an upper surface of at least one of the plurality of guide protrusions,
the spring is between the plurality of guide grooves and between the second support and the pressing portion.
8. The two-side aligning and inspecting apparatus of a display panel according to claim 5,
the first contact unit includes:
a first clamp to position and unfixed the first signal transfer board in and from the base;
a first support combined with the base to form a guide groove into which a portion of the first clamp is inserted, for guiding the lifting movement of the first clamp; and
a lever coupled to the first supporter to lift the first clamp with an external force applied thereto,
the both sides of display panel are aimed at and inspection device still includes:
a first operation portion that pushes and releases pushing of the lever of the first contact unit; and
a second operating part aligning the contactor part of the second contact unit with the second signal transfer plate.
9. The apparatus for both-side alignment and inspection of a display panel according to claim 8, wherein the second operation part comprises:
a guide rail provided on the upper side of the table top on which the base is provided; and
and a control unit in the form of a robot arm that moves along the guide rail and has a clamp portion that clamps the control hook, wherein the contact portion of the second contact unit is moved within a range that allows the movement portion.
10. The apparatus for both-side alignment and inspection of a display panel according to claim 1, wherein the base comprises:
a lower plate disposed on the table;
a first sliding part which is slidably coupled to the lower plate, supports the first signal transmission plate during inspection, and couples the first contact unit to the first sliding part; and
and a second sliding portion which is slidably coupled to the lower plate so as to face the first sliding portion, supports the second signal transmission plate during inspection, and to which the second contact means is coupled.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020190041504A KR102153910B1 (en) | 2019-04-09 | 2019-04-09 | Inspection apparatus capable of aligning and inspecting both sides of display panel |
| KR10-2019-0041504 | 2019-04-09 |
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| CN111798776A true CN111798776A (en) | 2020-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010249352.6A Pending CN111798776A (en) | 2019-04-09 | 2020-04-01 | Two-side alignment and inspection device for display panel |
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| KR (1) | KR102153910B1 (en) |
| CN (1) | CN111798776A (en) |
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| KR102153910B1 (en) | 2020-09-09 |
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Application publication date: 20201020 |