CN111796123A - Variable-interval inspection device based on size of display panel - Google Patents
Variable-interval inspection device based on size of display panel Download PDFInfo
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- CN111796123A CN111796123A CN202010249113.0A CN202010249113A CN111796123A CN 111796123 A CN111796123 A CN 111796123A CN 202010249113 A CN202010249113 A CN 202010249113A CN 111796123 A CN111796123 A CN 111796123A
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- display panel
- contact unit
- interval
- unit
- signal transmission
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
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- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
An embodiment of the present invention provides a variable interval inspection apparatus that can vary an interval according to the size of a display panel, having a first signal transmission plate at one side and a second signal transmission plate at the other side in order to transmit an electrical signal. The interval variable inspection apparatus includes: a first contact unit that applies an electrical signal for inspection to a first signal transmission plate, the first contact unit being aligned with the first signal transmission plate; a second contact unit that applies an electrical signal for inspection to the second signal transmission plate, the second contact unit being aligned with the second signal transmission plate; and an interval adjusting mechanism for adjusting the interval between the first contact unit and the second contact unit corresponding to the size of the display panel.
Description
Technical Field
The present invention relates to a variable gap inspection apparatus based on the size of a display panel, and more particularly, to a variable gap inspection apparatus based on the size of a display panel having signal transmission plates on one side and the other side, respectively.
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, and the like, 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 the use application thereof, 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.
In particular, there are problems as follows: as the size of the display panel is diversified, it is not effective to perform the inspection in different inspection apparatuses according to different sizes, and it is necessary to continuously change and manufacture the inspection apparatus as the size of the display panel having the signal transmission plates on both sides is changed, which cannot be a sustainable method.
Disclosure of Invention
Problems to be solved by the invention
An object of the present invention is to provide a variable interval inspection apparatus based on the size of a display panel, which can easily adjust the interval between contact units according to the size of the display panel, thereby effectively performing a both-side inspection.
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
In order to achieve the above object, an embodiment of the present invention provides a variable interval inspection apparatus in which intervals are variable according to the size of a display panel, and the apparatus includes a first signal transmission plate on one side and a second signal transmission plate on the other side to transmit an electrical signal. The interval variable inspection apparatus includes: a first contact unit that applies an electrical signal for inspection to a first signal transmission plate, the first contact unit being aligned with the first signal transmission plate; a second contact unit that applies an electrical signal for inspection to the second signal transmission plate, the second contact unit being aligned with the second signal transmission plate; and an interval adjusting mechanism for adjusting the interval between the first contact unit and the second contact unit corresponding to the size of the display panel.
In an embodiment of the present invention, the interval adjusting mechanism 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 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.
In an embodiment of the present invention, the sliding device may further include a step compensating member disposed on the lower plate exposed from between the first sliding portion and the second sliding portion, for reducing the step.
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 first sliding part to form a guide groove for inserting a part of the first clamp, and used for guiding the first clamp to move up and down; 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 second contact unit may include: a second jig for positioning the second signal transmission plate in the second slide portion and releasing the second signal transmission plate from the second slide portion; a control hook formed on the second jig; 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; a spring interposed between the second clamp and the second supporter, and compressed by the second clamp and the second supporter when the control hook is pulled by an external force to lift the second clamp; and a moving unit coupled to the second sliding unit and the second supporter, and allowing the second supporter to move in an X-axis direction, a Y-axis direction, and a Z-axis direction within a predetermined range by an external force applied to the control hook.
In an embodiment of the present invention, the moving part may include: a support part combined with the second sliding part; a Y-axis moving unit coupled to the support unit to allow the second supporter to move in the second sliding unit in a predetermined range along a Y-axis direction; an X-axis moving unit coupled to the Y-axis moving unit and allowing the second supporter to move in the first sliding unit in a predetermined range along an X-axis direction; and a rotation moving unit coupled to the X-axis moving unit and the second supporter, and allowing the second supporter to rotate within a predetermined range around a Z-axis as a rotation axis by an external force applied to the control hook.
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 pressing portion and respectively inserted into the plurality of guide grooves of the second supporter, wherein the control hook may be formed on an upper surface of at least one of the plurality of guide protrusions, and the spring may be interposed between the second supporter and the pressing portion between the plurality of guide grooves.
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 first sliding part to form a guide groove for inserting a part of the first clamp, and used for guiding the first clamp to move up and down; and a lever coupled to the first supporter to lift the first clamp with an external force applied thereto, wherein the first contact unit may further include: a first operation part for pushing and releasing the lever of the first contact unit; and a second operation portion for holding the control hook of the second contact unit to move the second support within a range allowed by the moving portion.
In an embodiment of the present invention, after adjusting the interval between the first sliding portion and the second sliding portion, the first contact unit is aligned with the first sliding portion in advance, the first signal transmission plate is placed on the first sliding portion to be aligned with the first contact unit, after the display panel is aligned with the first contact unit, the second contact unit is aligned with the second signal transmission plate positioned on the second sliding portion, and in a state where the second operation portion pulls the control hook to move to a position retracted with respect to the first contact unit to prevent interference with the second signal transmission plate of the display panel, the first signal transmission plate is inserted into a space between the first sliding portion formed by the lever of the first contact unit being pressed and the first jig and is aligned with the first contact unit, the second operating portion may move the second contact unit to align with the second signal transmission plate in a state where the first signal transmission plate is fixed by the first jig of the first contact unit, and may fix the second signal transmission plate by the second jig of the second contact unit by placing the control hook.
In an embodiment of the present invention, the first sliding portion may include a first alignment transmission window for displaying a first side alignment state, the second sliding portion may include a second alignment transmission window for displaying a second side alignment state, an opening portion exposing the first alignment transmission window and the second alignment transmission window may be formed in the lower plate, and the variable interval inspection apparatus according to the size of the display panel may further include: a first image pickup unit that picks up an image of the first alignment transmission window at a lower portion of the first slide unit; a second image pickup unit that picks up an image of the second alignment transmission window at a lower portion of the second sliding unit; and a control unit which receives the image information captured by the first and second imaging units and transmits a signal for burn-in inspection or lighting inspection to the first and second signal transmission plates through the first and second contact units, respectively.
Effects of the invention
According to the embodiments of the present invention, it is possible to provide a variable interval inspection apparatus which can inspect display panels of various sizes in the same inspection apparatus, and in particular, can inspect panels of various sizes such as both-side inspection of a display panel having signal transmission plates on both sides thereof in the same apparatus.
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 is a diagram showing an example of an interval variable inspection apparatus according to an embodiment of the present invention.
Fig. 2 to 4 are diagrams showing an example of an interval variable inspection apparatus in which the interval is enlarged.
Fig. 5 and 6 are diagrams for explaining an example of the operation of inspecting the display panel by the variable interval inspection apparatus.
Fig. 7 is a diagram for explaining another example of the interval adjustment mechanism.
Fig. 8 is a diagram for explaining an example of the second contact unit.
Fig. 9 is a diagram for explaining an example of the first operation unit.
Fig. 10 is a diagram for explaining an example of the second operation unit.
Fig. 11 is a diagram showing an example of the control means of the second operation unit.
Fig. 12 is a diagram for explaining an example of an operation method of the interval variable inspection apparatus according to the embodiment of the present invention.
Fig. 13 is a diagram showing an example of a display panel having signal transmission plates on one side and the other side, respectively.
Fig. 14 is a diagram showing an example of the alignment state 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 inspection device
50: display panel
51: first signal transmission board
53: second signal transmission board
100: interval adjusting mechanism
101: lower plate
102: first sliding part
104: second sliding part
106: guide rail
108: opening 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
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
390: rotating 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: image pickup unit
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 "directly connecting" and a case of "indirectly connecting" between the two with other components. In addition, when it is indicated that one portion "includes" another structural element, unless otherwise stated, this does not mean that the other structural element is excluded, and the other structural element may be included.
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 is a diagram showing an example of an interval variable inspection apparatus 1 according to an embodiment of the present invention.
The interval variable inspection apparatus 1 based on the size of the display panel can inspect display panels of various sizes by the same apparatus. In particular, the variable interval inspection apparatus 1 according to the size of the display panel can perform inspection by changing the interval according to the size of the display panel in a process of performing both-side inspection of the display panel having the first signal transmission plate on one side and the second signal transmission plate on the other side in order to transmit electric signals.
In the present embodiment, a description will be given of an example of the display panel 50 (see fig. 10 and 11) having a signal transmission plate or a flexible printed circuit board on one side and the other side, respectively.
The interval variable inspection apparatus 1 (hereinafter, interval variable inspection apparatus) based on the size of the display panel may include an interval adjustment mechanism 100, a first contact unit 200, and a second contact unit 300 on which the display panel 50 is placed for inspection.
The first contact unit 200 is located on the interval adjustment mechanism 100, and can apply an electrical signal for inspection to the first signal transmission plate 51 (see fig. 6). For this, the first signal transfer plate 51 is aligned with the first contact unit 200. The first contact unit 200 can fix the first signal transfer plate 51 in a clamping manner and make electrical contact.
The second contact unit 300 is located on the interval adjustment mechanism 100, and can apply an electrical signal for inspection to the second signal transmission plate 53 (refer to fig. 6). For this, the second signal transfer plate 53 is aligned with the second contact unit 300. The second contact unit 300 can fix the second signal transfer plate 53 in a clamping manner and make electrical contact.
The interval adjustment mechanism 100 may adjust the interval between the first contact unit 200 and the second contact unit 300 corresponding to the size of the display panel.
Fig. 2 to 4 are diagrams showing an example of the variable interval inspection apparatus 1 in which the interval is enlarged.
The interval adjustment mechanism 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 may be 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 may be coupled to the second sliding portion 104.
The first sliding part 102 may include a first alignment perspective window 110 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 portion exposing the first alignment window 110 and the second alignment window 130 may be formed in the lower plate 101 of the interval adjustment mechanism 100.
A guide rail for sliding is provided at an edge of an upper surface of the lower plate 101 of the interval adjustment mechanism, and the first sliding portion 102 and the second sliding portion can slide on the guide rail and can be positioned at a desired position.
The interval between the first sliding portion 102 and the second sliding portion 104 may be manually adjusted, or the first sliding portion 102 and the second sliding portion or the lower plate 101 may be provided with an actuator to adjust the interval between the first sliding portion 102 and the second sliding portion 104.
The first contact unit is detachably coupled to the first sliding portion 102. The second contact unit is detachably coupled to the second sliding portion 104. Therefore, the interval between the first contact unit and the second contact unit can be adjusted by adjusting the interval between the first sliding portion 102 and the second sliding portion 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 means aligned with the first signal transmission plate 51 and the second contact means aligned with the second signal transmission plate 53 as described above.
Fig. 5 and 6 are diagrams for explaining an example of the operation of inspecting the display panel by the variable interval inspection apparatus 1.
The lower plate of the interval adjusting mechanism can be fixedly arranged on the body.
As shown in fig. 5, after the interval between the first slider 102 and the second slider 104 is adjusted according to the size of the display panel, it is fixed and inspection of the display panel can be performed.
The first signal transfer plate 51 of the display panel is held by the first contact unit 200 so as to be positioned at the first sliding portion 102.
The second signal transfer plate 53 of the display panel is held by the second contact unit 300 so as to be positioned at the second sliding portion 104.
As described above, the first alignment transparent window 110 is formed in the first sliding portion 102, and the second alignment transparent window 130 is formed in the second sliding portion 104.
The opening formed in the lower plate 101 of the interval adjustment mechanism 100 may be positioned and sized to expose the first alignment viewing window 110 and the second alignment viewing window 130 regardless of an increase or decrease in the interval between the first sliding portion 102 and the second sliding portion 104.
Fig. 7 is a diagram for explaining another example of the interval adjustment mechanism 100.
As shown in fig. 7, a step compensating member may be disposed on the lower plate 101 exposed between the first sliding portion 102 and the second sliding portion 104. The level difference compensation member is provided between the first slider 102 and the second slider 104, and it is sufficient that the level difference compensation member is located at a position substantially in the middle of the lower surface supporting the display panel when performing the inspection, and it does not need to be a member having the same width as the interval between the first slider and the second slider 104.
Such a level difference compensation member may be manually installed by a user, or may be disposed so as to be accommodated in a groove forming a level difference of the lower plate 101 and mechanically lifted upward, or moved by an actuator such as a motor.
Referring to fig. 1 to 6, 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 4, a plurality of guide grooves for guiding the up-and-down movement of the first clamp 210 and for providing 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 (refer to fig. 13) for applying an electric signal to the display panel 50 may be attached to a lower surface of the plate-shaped bar 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 (Blade Contactor), 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 Contact plate of the flexible printed circuit board 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 the Contact end of the Contact plate is located to improve Contact (Contact) with the signal transfer plate of the display panel 50.
In the present embodiment, the first jig 210 is integrally formed, 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 support 230 are provided on the left and right sides of each protruding portion of the first jig 210, and the first jig 210 is pressed toward the lower side, so that the contact force between the contact plate 215 (see fig. 13) 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 locked to 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. 8 is a diagram for explaining an example of the second contact unit 300.
Referring to fig. 1 to 8, the second contact unit 300 may include a second jig, a control hook formed at the second jig, a second support 330, a spring, and a moving part 305.
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 is subjected to the resistance 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 spring 370.
The moving part 305 may include a support part, a Y-axis moving part 380, an X-axis moving part 360, and a rotational moving part 390.
The support portion is detachably combined with the second sliding portion 104.
The Y-axis moving part 380 may be combined with the support part. 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 X-axis moving unit 360 may be coupled to the Y-axis moving unit 380 and may allow the rotational moving unit 390 to move forward and backward within a predetermined range along the X-axis direction.
The rotation moving unit 390 may be coupled to the X-axis moving unit 360 and the second supporter 330, and may allow the second supporter 330 to rotate within a predetermined range around the Z-axis as a rotation axis by an external force applied to the control hook.
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.
Referring back to fig. 5 and 6, the variable interval inspection apparatus 1 may further include a main body 600, image pickup units 710 and 730, and a control unit 800.
The body 600 may be disposed on a table (not shown). The interval adjustment mechanism 100 may be provided on the body 600, and the interval adjustment mechanism 100 may be fixed to an 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.
Fig. 9 is a diagram for explaining an example of the first operation unit 400. Fig. 10 is a diagram for explaining an example of the second operation unit 500.
The variable interval inspection apparatus 1 may further include a first operation unit 400 and a second operation unit 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 loading space of 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. 9 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.
In some cases, display panels of different sizes may be mounted between different sets of the first and second touch units 200 and 300 adjusted at different intervals to perform inspection.
When the display panel 50 is mounted on the interval adjustment mechanism, the second operation part 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 loaded display panel 50.
In the present embodiment, as shown in fig. 5, the first contact unit 200 is previously aligned with the interval adjustment mechanism 100, the first signal transfer plate 51 of the display panel 50 is loaded to the interval adjustment mechanism 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. 11 is a diagram showing an example of the control unit 530 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 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. 12 is a diagram for explaining an example of the operation method of the variable interval inspection apparatus 1 according to the embodiment of the present invention. Fig. 13 is a diagram showing an example of a display panel having signal transmission plates on one side and the other side, respectively. Fig. 14 is a diagram illustrating an example of an alignment state of the display panel, the first contact unit, and the second contact unit viewed through the first alignment transparent window 110 and the second alignment transparent window 130.
A method of inspecting a display panel using the variable interval inspection apparatus 1 of the above-described embodiment of the present invention will be described.
First, the interval adjustment mechanism is adjusted to conform to the size of the display panel as an inspection object (step S101). For example, the first sliding portion 102 and the second sliding portion 104 are spaced apart by a desired interval, and the first sliding portion 102 and the second sliding portion 104 may be fixed to the lower plate 101 using a member such as a pin. The movement of the first and second slides 102, 104 may be operated manually or by an actuator.
Then, a contact board suitable for inspection may be mounted on a lower surface of the first jig 210 of the first contact unit 200 (step S102). Then, the first contact unit 200 may maintain the lever 250 in a lifted state, i.e., a clamped state.
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 S103).
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 attached (step S104).
Then, the second operation unit 500 is operated, and the control unit 530 retracts the second contact unit 300 (step S105).
When the display panel 50 is mounted on the interval adjustment mechanism 100, the second operation part 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 in the Y-axis direction within a range allowed by the moving part 305.
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 S106).
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. 13, an alignment mark 55 may be formed in such a signal transfer plate.
Fig. 14 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 interval adjustment mechanism 100, an alignment mark formed on the transparent window, and the like in advance, and the image pickup unit 710 picks up an image of the contact plate 215 through the first alignment transparent window 110 and supplies the image to the control unit 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 part 800 controls the transfer device using the image information about the captured 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, it is held by the second contact unit 300 (step S107).
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.
For this movement, the control unit 530 may move the second supporter 330 along the X-axis and Y-axis directions in a state where the control hook 350 is slightly pulled in the height direction (Z-direction), that is, in a state where the second jig 310 is lifted.
Also, the control unit 530 may rotate the second supporter 330 in a state of clamping the control hook 350. That is, the second supporter 330 (and the second jig 310) may perform X-axis and Y-axis linear motions and a rotational motion about the Z-axis as a rotation axis through the control unit 530.
When the clamp portion 537 releases the control hook 350, the second clamp 310 is restored by the spring 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 unit 730 captures the position of the second signal transfer plate 53 of the display panel 50 through the second alignment transparent window 130, and provides a captured image regarding the position of the second signal transfer plate 53 when the second contact unit 300 is aligned (refer to fig. 14).
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 S108).
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 and second contact units 200 and 300 is released, and the display panel 50 may be unloaded from the interval adjustment mechanism 100.
When there is no more display panel 50 to be inspected or a stop operation instruction is received, the two-side inspection apparatus 1 may end the inspection (step S109).
In contrast, if there is a display panel 50 to be inspected, the display panel 50 for the next inspection may be automatically loaded into the interval variable inspection apparatus 1 (step S110).
As such, according to the interval variable inspection apparatus 1 of the present embodiment, the interval between the first contact unit and the second contact unit 300 can be adjusted by simply adjusting the interval adjustment mechanism 100 corresponding to the size of the display panel 50 having the signal transfer plates on both or more sides, so that both sides of the display panel of various sizes can be inspected in an automated state by one apparatus, thereby improving the effectiveness, the inspection can be performed on both sides of the display panel, and the 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 equivalent concepts should be interpreted as being included in the scope of the present invention.
Claims (10)
1. An apparatus for checking a variable interval according to the size of a display panel, which is capable of changing an interval according to the size of the display panel, and which includes a first signal transmission plate on one side and a second signal transmission plate on the other side in order to transmit an electric signal, the apparatus comprising:
a first contact unit that applies an electrical signal for inspection to the first signal transfer plate, aligned with the first signal transfer plate;
a second contact unit that applies an electrical signal for inspection to the second signal transfer plate, aligned with the second signal transfer plate; and
an interval adjusting mechanism adjusting an interval between the first contact unit and the second contact unit corresponding to a size of the display panel.
2. The apparatus for checking variable interval based on size of display panel according to claim 1, wherein the interval adjusting mechanism 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 has the first contact unit coupled thereto; 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.
3. The apparatus for inspecting variation in interval according to size of a display panel according to claim 2, further comprising a level difference compensation member disposed on the lower plate exposed between the first sliding portion and the second sliding portion for reducing a level difference.
4. The apparatus for checking variable interval based on size of display panel according to claim 2, wherein the first contact unit includes:
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 first sliding part to form a guide groove into which a part of the first clamp is inserted, for guiding the up-and-down 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 apparatus for checking variable interval based on size of display panel according to claim 2, wherein the second contacting unit comprises:
a second jig that positions and releases fixing of the second signal transmission plate in and from the second sliding portion;
a control hook formed on the second jig;
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, and compressed by the second clamp and the second support when the control hook is pulled by an external force to lift and lower the second clamp; and
and a moving part coupled to the second sliding part and the second supporter, and allowing the second supporter to move in an X-axis direction, a Y-axis direction, and a Z-axis direction within a predetermined range by an external force applied to the control hook.
6. The apparatus for checking variable interval according to size of display panel according to claim 5, wherein the moving part comprises:
a support part combined with the second sliding part;
a Y-axis moving part coupled to the support part to allow the second support to move on the second sliding part within a predetermined range along a Y-axis direction;
an X-axis moving unit coupled to the Y-axis moving unit and allowing the second support to move in the first sliding unit in a predetermined range along an X-axis direction; and
and a rotation moving unit coupled to the X-axis moving unit and the second supporter, and allowing the second supporter to rotate within a predetermined range around a Z-axis as a rotation axis by an external force applied to the control hook.
7. The interval variable inspection apparatus based on the size 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 interval variable inspection apparatus based on the size of a display panel according to claim 7,
the first contact unit includes:
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 first sliding part to form a guide groove into which a part of the first clamp is inserted, for guiding the up-and-down 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 first contact unit further includes:
a first operation portion that pushes and releases pushing of the lever of the first contact unit; and
and a second operation portion that holds the control hook of the second contact unit to move the second support within a range allowed by the moving portion.
9. The interval variable inspection apparatus based on the size of a display panel according to claim 8,
after adjusting the interval between the first sliding part and the second sliding part,
the first contact unit is pre-aligned with the first sliding part, the first signal transfer plate is placed on the first sliding part to be aligned with the first contact unit,
the second contact unit is aligned with the second signal transfer plate at the second sliding part after the display panel is aligned with the first contact unit,
the first signal transmission plate is inserted into a space between the first sliding portion and the first jig formed by the lever of the first contact unit being pressed and aligned with the first contact unit in a state where the second operation portion pulls the control hook to move to a position retreated relative to the first contact unit so as to prevent interference with the second signal transmission plate of the display panel,
the second operating portion moves the second contact unit to align with the second signal transmission plate in a state where the first signal transmission plate is fixed by the first clamp of the first contact unit, and fixes the second signal transmission plate by the second clamp of the second contact unit by placing the control hook.
10. The interval variable inspection apparatus based on the size of a display panel according to claim 9,
the first sliding part includes a first alignment transmission window for displaying a first side alignment state,
the second sliding part includes a second alignment transmission window for displaying a second side alignment state,
an opening portion exposing the first and second alignment transmission windows is formed in the lower plate,
the variable interval inspection apparatus based on the size of the display panel further includes:
a first image pickup unit that picks up an image of the first alignment transmission window at a lower portion of the first sliding unit;
a second image pickup section that picks up an image of the second alignment transmission window at a lower portion of the second sliding section; and
and a control unit which receives the image information captured by the first and second image capturing units and transmits signals for burn-in inspection or lighting inspection to the first and second signal transmission plates through the first and second contact units, respectively.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020190041503A KR102149703B1 (en) | 2019-04-09 | 2019-04-09 | Variable width inspection apparatus according to size of display panel |
| KR10-2019-0041503 | 2019-04-09 |
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| Publication Number | Publication Date |
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| CN111796123A true CN111796123A (en) | 2020-10-20 |
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| CN201911418785.3A Active CN111798775B (en) | 2019-04-09 | 2019-12-31 | Detection device with variable space according to size of display panel |
| CN202010249113.0A Pending CN111796123A (en) | 2019-04-09 | 2020-04-01 | Variable-interval inspection device based on size of display panel |
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| CN201911418785.3A Active CN111798775B (en) | 2019-04-09 | 2019-12-31 | Detection device with variable space according to size of display panel |
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| CN113945200A (en) * | 2021-09-25 | 2022-01-18 | 武汉鸿规勘测设计有限公司 | High-efficiency signal transmission device for remote sensing image surveying |
| CN114500788A (en) * | 2020-10-26 | 2022-05-13 | 日本电产三协株式会社 | Imaging device and inspection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115878393B (en) * | 2022-01-20 | 2023-09-12 | 北京沃华慧通测控技术有限公司 | Test system and test method |
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Also Published As
| Publication number | Publication date |
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| CN111798775A (en) | 2020-10-20 |
| CN111798775B (en) | 2022-11-15 |
| KR102149703B1 (en) | 2020-08-31 |
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