KR20240001507A - Modular pallet structure of display panel testing apparatus - Google Patents

Abstract

According to one embodiment of the present invention, a pallet structure for electrical inspection of a display panel includes a plurality of contact block units in contact with the display panel and a support unit coupled to each of the plurality of contact block units; A modular pallet structure is disclosed, wherein the contact block unit is detachably coupled to one side of the support unit.

Description

Modular pallet structure of display panel inspection device {MODULAR PALLET STRUCTURE OF DISPLAY PANEL TESTING APPARATUS}

The present invention relates to a pallet structure of a display panel inspection device.

Generally, during the manufacturing process of display panels including AMOLED panels, OLED (Organic Light Emitting Diodes), and Liquid Crystal Displays, electrical signals are applied to the display panel at the completion stage to check whether it operates normally. The inspection process is performed, and a display panel inspection device is used at this time.

This display panel inspection device is mainly used to inspect electrical characteristics by contacting a contactor to apply a test signal to an electrical contact (Pad) formed on the display panel.

In the conventional case, in order to contact the contactor with the contact point of the display panel, the contactor is mounted under the clamp with a lifting and lowering structure, and the display panel is moved to the inspection position while lifting the clamp in the form of a lever through a guide block. A method of lowering the clamp after transport to bring the contactor into contact with the contact point of the display panel is used.

However, when using a guide block, there is a problem that the flatness is uneven no matter how fine the setting is, depending on the quality of the guide block as the guide blocks are assembled separately.

The problem to be solved according to an embodiment of the present invention includes manufacturing a clamp that can be lifted up and down without using a guide block in a modular form so that it can be detached from a support unit to facilitate assembly and setting.

The technical problem to be achieved by the present invention is not limited to the technical problem mentioned above, and other technical problems not mentioned can be clearly understood by those skilled in the art from the description below. There will be.

In order to solve the above problem, in the pallet structure for electrical inspection of a display panel according to an aspect of the present invention, a plurality of contact block units in contact with the display panel and each of the plurality of contact block units are coupled to each other. It includes a support unit, and the contact block unit may be detachably coupled to one side of the support unit.

Here, the plurality of contact block units may be installed along the extended length direction of the support unit.

Here, the contact block unit may include a clamp including a contactor in contact with the display panel and a guide module including at least two axes and guiding the lifting and lowering of the clamp.

Here, the guide module is located on a surface coupled to one side of the support unit and may include a coupling portion engaged with the support unit.

Here, the coupling portion may include a central coupling portion coupled to the central portion of the support unit and an upper coupling portion located at upper ends of both sides around the central coupling portion.

Here, the support unit may include a receiving portion into which the coupling portion is inserted.

Here, the support unit may further include an L-shaped locking portion that protrudes toward the guide module.

Here, the guide module may further include a locking groove so that the locking portion is seated and caught on one side of the lower end of the guide module.

Here, the support unit includes a lever extending toward the clamp to be coupled to one side of the clamp, and the clamp may further include a lever coupling portion into which one end of the lever is inserted into the rear of the clamp.

Here, the clamp moves up and down along the at least two axes when the lever is operated, and the guide module may be fixed to the support unit.

As described above, according to the embodiments and various aspects of the present invention, the clamp that can be lifted up and down without using a guide block is manufactured in a modular form so that it can be attached and detached from the support unit to facilitate assembly and setting and to maintain even flatness. It can be maintained.

The effects of the present invention are not limited to the effects described above, and should be understood to include all effects that can be inferred from the configuration of the invention described in the description or claims of the present invention.

Figure 1 is a perspective view showing a display panel inspection device to which a modular pallet structure is applied according to an embodiment of the present invention.
Figure 2 is an exploded view showing a contact block unit with a modular pallet structure according to an embodiment of the present invention.
Figure 3 is a diagram showing a guide module with a modular pallet structure according to an embodiment of the present invention.
Figure 4 is a diagram showing a support unit of a modular pallet structure according to an embodiment of the present invention.
Figure 5 is a diagram for explaining the combination of a guide module and a support unit of a modular pallet structure according to an embodiment of the present invention.
Figure 6 is a diagram showing an example of a guide clamp and lever of a modular pallet structure combined according to an embodiment of the present invention.

Hereinafter, the present invention will be described with reference to the attached drawings. However, the present invention may be implemented in various different forms and, therefore, is not limited to the embodiments described herein. In order to clearly explain the present invention in the drawings, parts that are not related to the description are omitted, and similar parts are given similar reference numerals throughout the specification.

Throughout the specification, when a part is said to be "connected (connected, contacted, combined)" with another part, this means not only "directly connected" but also "indirectly connected" with another member in between. "Includes cases where it is. Additionally, when a part is said to “include” a certain component, this does not mean that other components are excluded, but that other components can be added, unless specifically stated to the contrary.

The terms used herein are only used to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as “comprise” or “have” are intended to indicate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.

One embodiment of the present invention relates to a modular pallet structure of a display panel inspection device.

Figure 1 is a perspective view showing a display panel inspection device to which a modular pallet structure is applied according to an embodiment of the present invention.

The display panel inspection device 1 to which the modular pallet structure according to an embodiment of the present invention is applied performs a process of inspecting whether it operates normally by applying an electrical signal to the display panel in the manufacturing completion stage during the manufacturing process of the display panel. It is a device.

In general, a display panel may include an AMOLED panel, OLED (Organic Light Emitting Diodes), and a liquid crystal display, and a display panel inspection device is connected to an electrical contact (Pad) formed on the display panel. A method of inspecting electrical characteristics by contacting a contactor to apply a test signal is mainly used.

Referring to FIG. 1, a display panel inspection device 1 to which a modular pallet structure according to an embodiment of the present invention is applied includes a pallet 10 and a base 20.

The pallet 10 is installed on a work table and contacts a contactor for electrical inspection of the transferred display panel.

The base 20 is fixed to the upper surface of the main body through a coupling member such as a screw or bolt.

The pallet 10 includes a plurality of contact block units 100 and a support unit 200.

The contact block unit 100 is provided to contact the display panel and performs an electrical inspection of the display panel.

Each of the plurality of contact block units 100 according to an embodiment of the present invention is detachably coupled to one side of the support unit 200.

Specifically, the clamp 110, which will be described later, of the contact block unit 100 can be equipped with a contactor at the bottom, and is raised and lowered by the operation of a lever-shaped lever, thereby coming into contact with the display panel.

At this time, the ascending and descending direction may be the D1 direction in FIG. 1, which may be the z-axis direction.

Meanwhile, since the guide module 120 that guides the lifting and lowering of the clamp 110 is fixed to one side of the support unit 200, the contact block unit 100 is mounted on the support unit 200 as one contact point. The clamp 110 can be raised and lowered while the guide module 120 is fixed to the support unit 200.

Accordingly, the clamp, which can be lifted up and down without using a guide block, is manufactured in a modular form so that it can be attached and detached from the support unit, making assembly and setting easy and maintaining even flatness.

According to one embodiment of the present invention, a plurality of contact block units 100 are installed in parallel on the pallet 10. In FIG. 1, 10 contact block units 100 are installed in parallel on the pallet 10 and Although it is shown that 10 corresponding display panels can be inspected simultaneously, the number of installations is not limited to this.

The support unit 200 is combined with a plurality of contact block units 100 and is fixedly installed on the base 20 of the main body.

The support unit 200 includes an “L” shaped support structure installed on the base 20, and may include a space for installing the contact block unit 100 at a predetermined interval in the longitudinal direction on the front side.

A plurality of contact block units 100 are installed along the extended longitudinal direction of the support unit 200. In Figure 1, the extended length direction of the support unit may be the y-axis direction.

Figure 2 is an exploded view showing a contact block unit with a modular pallet structure according to an embodiment of the present invention.

Referring to FIG. 2, the contact block unit 100 of a modular pallet structure according to an embodiment of the present invention includes a clamp 110 and a guide module 120.

The clamp 110 includes a contactor that contacts the display panel.

Specifically, the clamp 110 can electrically connect a signal line for testing by bringing the contactor into contact with the electrical contact point (Pad) of the touch panel.

The clamp 110 includes a protrusion 111 formed so that a portion of the upper part protrudes, and when the clamp is raised by the operation of the lever, it rises in the D1 direction and one area of the protrusion 111 becomes a guide module 120 to be described later. It can be inserted into the space 1222, and the clamp 110 and the guide module 120 can be engaged with each other.

The display panel inspection device according to an embodiment of the present invention moves the display panel to the inspection position while lifting the clamp, and then lowers the clamp to bring the contactor into contact with the contact point of the display panel.

In this case, it is necessary to distribute the pressure evenly when raising and lowering the clamp.

To this end, the guide module 120 of the contact block unit 100 according to an embodiment of the present invention includes at least two axes and guides the lifting and lowering of the clamp, and the clamp moves along at least two axes when the lever is operated. Go up and down.

Specifically, in one embodiment of the present invention, at least two axes include a first axis 130a, a second axis 130b, and a third axis 130c, and the first axis 130a and the second axis ( 130b) and the third axis 130c are positioned to extend along the z-axis.

Accordingly, when the clamp 110 is raised and lowered by the lever, the pressure is equally distributed by the first axis 130a, the second axis 130b, and the third axis 130c, thereby improving precision and flatness. there is.

The guide module 120 includes a fixed block 121 and a guide block 122.

The fixing block 121 is located at the top of the guide module and fixes one end of at least two axes.

The guide block 122 is located at the bottom of the fixed block and includes through holes on the inside through which at least two axes penetrate.

In one embodiment of the present invention, the first shaft 130a, the second shaft 130b, and the third shaft 130c are inserted into the through holes, and when the clamp 110 is raised and lowered, the first shaft 130a, Since it is lifted and lowered along the second axis 130b and the third axis 130c, it is lifted and lowered accurately without being shifted at an angle other than the D1 direction, which is the direction of the first axis 130a, the second axis 130b and the third axis 130c. You can do it.

According to one embodiment of the present invention, a plurality of at least two axes are included inside the guide block 122, and although three axes are shown in Figure 2, the number of installations is not limited to this.

The guide block 122 includes a space 1222 in which at least a portion of the lower end of the guide block is concave.

The space portion 1222 may be formed to engage with each other so that one region of the protrusion 111 is inserted.

In addition, the contact block unit 100 having a modular pallet structure according to an embodiment of the present invention further includes a spring bracket 140.

The spring bracket 140 is provided to secure adhesion between the clamp and the guide module.

Specifically, the spring bracket 140 is arranged in a direction parallel to the first axis 130a, the second axis 130b, and the third axis 130c, and its elasticity ensures adhesion when the clamp is raised and lowered.

As shown in Figure 2, the modular pallet structure according to an embodiment of the present invention is such that the clamp 110 is lifted and lowered along the internal first axis 130a, second axis 130b, and third axis 130c. As much as possible, the clamp 110 and the guide module 120 are formed as one module, so that the clamp, which can be lifted up and down without using a guide block, is manufactured in a modular form so that it can be detached from the support unit to facilitate assembly and setting, and to ensure a flat surface. The degree can be maintained evenly.

Figure 3 is a diagram showing a guide module with a modular pallet structure according to an embodiment of the present invention.

Figure 3 shows a view of the guide module 120 from the rear.

In one embodiment of the present invention, the front refers to the direction in which the pallet 10 is viewed in the x-axis direction, and the rear refers to the direction in which the support unit 200 is located.

The guide module 120 according to an embodiment of the present invention includes a fixing block 121 and a guide block 122, and has coupling portions 151, 152, 153 and a locking portion so that it can be coupled to the support unit 200. Includes groove 160.

The fixing block 121 is located at the top of the guide module and fixes one end of at least two axes.

Specifically, the fixing block 121 includes a first fixing hole 1212a, a second fixing hole 1212b, and a third fixing hole 1212c, and a first axis 130a each penetrates the guide block 122. ), one end of the second shaft 130b and the third shaft 130c can be fixed.

If the clamp 110 is raised and lowered, the fixed block 121 is raised and lowered integrally with the clamp 110 connected to the first axis 130a, the second axis 130b and the third axis 130c, so that the first axis It is possible to accurately ascend and descend without deviation at an angle other than the D1 direction, which is the direction of (130a), the second axis 130b, and the third axis 130c.

In addition, one end of the spring bracket 140 penetrating the guide block 122 can be fixed, including the fourth fixing hole 1211a and the fifth fixing hole 1211a.

The guide block 122 is located at the bottom of the fixed block and includes through holes on the inside through which at least two axes penetrate.

Accordingly, the first axis 130a, the second axis 130b, and the third axis 130c move vertically along the through hole, and the clamp 110 can be raised and lowered.

The coupling portions 151, 152, and 153 are located on a surface coupled to one side of the support unit and are formed to engage with the support unit.

Specifically, the central coupling portion 151 is provided to protrude in the shape of a single line at the center of the guide block 122 so as to be coupled to the central portion of the support unit.

Additionally, the upper coupling portions 152 and 153 are located at the top of both sides around the central coupling portion and serve to fix the upper reference surface.

The coupling portions 151, 152, and 153 according to an embodiment of the present invention are formed of a plurality of protrusions, and the support unit may have a fastening groove formed so that the protrusions are inserted into the outer surface.

The locking groove 160 is provided in a form including a space at a part of the edge so that the locking member is seated and caught on one side of the lower end of the guide module, and is formed so that the locking member of the support unit is seated in the space.

Figure 4 is a diagram showing a support unit of a modular pallet structure according to an embodiment of the present invention.

Figure 4 shows a view of the support unit 200 from the front.

The support unit 200 according to an embodiment of the present invention includes a receiving portion 210 and a locking portion 220.

The receiving portion 210 is provided with a groove so that the coupling portion is inserted. Specifically, the central receiving portion 211 is provided in the form of a single line in the center so that the central coupling portion 151 is inserted.

The upper receiving portions 212 and 213 are located at the upper ends of both sides around the central receiving portion 211, and are fastened to the upper engaging portions 152 and 153 to fix the upper reference surface.

The locking portion 220 is provided in an L shape so as to protrude toward the guide module and can be fastened to the locking groove 160 of the guide module.

Accordingly, the modular pallet structure according to an embodiment of the present invention is formed to engage from both sides without having separate fastening parts such as bolts and nuts, thereby accurately connecting the contact block unit 100 and the support unit 200. and can be easily tightened.

Figure 5 is a diagram for explaining the combination of a guide module and a support unit of a modular pallet structure according to an embodiment of the present invention.

As shown in FIG. 5, the structure is such that one side of the contact block unit 100 and one side of the support unit 200 are engaged with each other.

The coupling portions 151, 152, and 153 are located on a surface coupled to one side of the support unit and are formed to engage with the support unit.

The coupling portions 151, 152, and 153 according to an embodiment of the present invention are formed of a plurality of protrusions, and the support unit may have a fastening groove formed so that the protrusions are inserted into the outer surface.

In addition, the locking groove 160 is provided in a form including a space at a part of the corner so that the locking member is seated and caught on one side of the lower end of the guide module, and is formed so that the locking member of the support unit is seated in the space.

Specifically, the locking portion 220 of the support unit is formed to protrude toward the guide module, and has an extension portion 221 extending toward the guide module and a riser vertically connected to the extension portion 221 to form an L shape in the extension portion. Includes part 222.

Here, as a step 161 is formed on the outside of the space of the locking groove 160, the extension portion 221 is fitted into the step 161, and the raised portion 222 fixes the fastened state, thereby contacting the contact. The block unit 100 and the support unit 200 may be fixed to each other.

Figure 6 is a diagram showing an example of a guide clamp and lever of a modular pallet structure according to an embodiment of the present invention combined.

Referring to FIG. 6, one end of the lever 230 is inserted into the lever engaging portion 113 located at the rear of the clamp.

In one embodiment of the present invention, the lever 230 is in the form of a lever and includes one end 232 inserted into the lever engaging portion 113 and a pressing portion 231 provided to be pressed by an external force, the lever After being pressed, an elastic part 233 may be included at the bottom of the pressing part 231 so that it returns again.

Accordingly, the clamp rises when the lever 230 is pressed, and then falls again.

At this time, the clamp moves up and down along at least two axes when the lever is operated, and the guide module is fixed to the support unit.

When the clamp 110 is raised and lowered, the first axis 130a, the second axis 130b, and the third axis 130c move through the through hole of the guide block, and the fixed block 121 moves the first axis 130a. ), since it is lifted and lowered integrally with the clamp 110 connected to the second axis 130b and the third axis 130c, D1 is the direction of the first axis 130a, the second axis 130b, and the third axis 130c. It is possible to go up and down accurately without deviating from angles other than the direction.

The description of the present invention described above is for illustrative purposes, and those skilled in the art will understand that the present invention can be easily modified into other specific forms without changing the technical idea or essential features of the present invention. will be. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive. For example, each component described as unitary may be implemented in a distributed manner, and similarly, components described as distributed may also be implemented in a combined form.

The scope of the present invention is indicated by the claims described below, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present invention.

1: Display panel inspection device
10: Palette
100: Contact block unit
110: clamp
120: Guide module
200: Support unit

Claims (10)

In the pallet structure for electrical inspection of the display panel,
a plurality of contact block units in contact with the display panel; and
It includes a support unit coupled to each of the plurality of contact block units,
A modular pallet structure, wherein the contact block unit is detachably coupled to one side of the support unit. According to paragraph 1,
The plurality of contact block units are:
A modular pallet structure, characterized in that installed along the extended longitudinal direction of the support unit. According to paragraph 1,
The contact block unit,
a clamp including a contactor in contact with the display panel; and
A modular pallet structure including at least two axes and a guide module that guides the lifting and lowering of the clamp. According to paragraph 3,
The guide module is,
A modular pallet structure located on a surface coupled to one side of the support unit and including a coupling portion engaged with the support unit. According to paragraph 4,
The coupling part,
A central coupling portion coupled to the central portion of the support unit; and
A modular pallet structure including an upper coupling portion located at the top of both sides around the central coupling portion. According to paragraph 4,
The support unit is,
A modular pallet structure including a receiving portion into which the coupling portion is inserted. According to paragraph 3,
The support unit is,
A modular pallet structure further comprising an L-shaped locking portion protruding toward the guide module. In clause 7,
The guide module is,
A modular pallet structure further comprising a locking groove so that the locking portion is seated and caught on one side of the lower end of the guide module. According to paragraph 3,
The support unit is,
It includes a lever extending toward the clamp so as to be coupled to one side of the clamp,
The clamp is,
A modular pallet structure further comprising a lever coupling portion where one end of the lever is inserted into the rear of the clamp. According to clause 9,
The clamp moves up and down along the at least two axes when the lever is operated,
A modular pallet structure, characterized in that the guide module is fixed to the support unit.

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