WO2019054761A1

WO2019054761A1 - Fpcb replacement system for display panel inspection

Info

Publication number: WO2019054761A1
Application number: PCT/KR2018/010722
Authority: WO
Inventors: 임대균; 천영민; 윤종대; 안재일
Original assignee: (주)디이엔티; 주식회사 디엠엔티
Priority date: 2017-09-14
Filing date: 2018-09-13
Publication date: 2019-03-21
Also published as: KR101906793B1

Abstract

An FPCB replacement system for display panel inspection is provided to select a clamp block having an appropriate FPCB mounted thereon according to the specifications of a display panel placed on a pallet for inspection and facilitate replacing on the pallet, the FPCB replacement system for display panel inspection comprising: a base frame; a carriage; a pallet setting unit; a holding frame unit; magazines for storing respective clamp blocks; and a clamp block setting unit. Accordingly, the FPCB replacement system for display panel inspection allows various kinds of display panels with different specifications to be quickly and accurately inspected without cumbersomeness or inconvenience, thereby having the effect of maximizing inspection efficiency.

Description

FPCB replacement system for display panel inspection

The present invention relates to a method of inspecting a display panel, and more particularly, to a method of inspecting a display panel by selecting a clamp block equipped with an appropriate FPCB according to specifications of a display panel mounted on the pellet for inspection, And an FPCB replacement system for a display panel inspection.

The use range of the display panel such as a mobile communication terminal, a TV, and a monitor is widely used depending on a use purpose and a utilization purpose.

In particular, display panels have been widely used in OLED (Organic Light Emitting Diodes) panels, which are called OLED (Future Display) panels in conventional LCD (Liquid Crystal Display) panels.

Such a display panel is inspected for abnormality while being put on a pellet in a multistage test process which is to be subjected to a production process when it is manufactured.

In general, a plurality of display panels to be inspected are mounted on a front surface of a pellet used for inspecting a display panel. The pellets are loaded or unloaded by a lever so that various signals can be applied to the display panel The FPCB is provided.

However, the display panel is manufactured in a variety of specifications according to the use purpose thereof, and the FPCB used therein is also variously provided according to specifications of the display panel.

In general, when one type of FPCB is applied to a conventional pellet, when inspection of a display panel of another specification is required, the entire pellet is taken out from the inspection equipment, and each FPCB is replaced or the FPCB The entire pellet was replaced and the test had to be carried out.

Accordingly, in order to inspect various display panels having different specifications, it is considerably cumbersome and inconvenient to replace the entire FPCB after pulling out the entire pellets from the inspection equipment, and further inconvenience caused by reassembly occurred.

In addition, when each of the pellets equipped with the FPCB to be inspected is provided, it also has a disadvantage of a large economic burden.

As described above, the conventional prior art for the display panel inspection is to perform temperature deterioration of the display panel as disclosed in Korean Patent Registration No. 10-1579090 (hereinafter referred to as "Prior Art Document 1"), Such as a display panel inspection apparatus, which improves the inspection accuracy by performing driving and lighting inspection of the display panel by electrical connection of the surface contact of the flexible circuit board.

Also, as disclosed in Korean Patent Registration No. 10-1346895 (hereinafter referred to as "Prior Art Document 2"), aging inspection and lighting inspection are simultaneously performed using a palette capable of measuring a plurality of display panels And a display panel inspection apparatus capable of automatic model replacement according to the change of the inspection object have been proposed.

[Patent Literature]

(Patent Document 1) Korean Patent Publication No. 10-1579090

(Patent Document 2) Korean Patent Registration No. 10-1346895

However, in the prior art document 1, the FPCB for inspecting the display panel is not smoothly replaced, but has a disadvantage that it must be manually performed by hand.

The prior art document 2 has a contactor dispenser for replacing the contactor, but has a disadvantage that it is not suitable for replacing the FPCB.

In order to solve the above-mentioned problems, the present invention provides a method for testing a display panel mounted on a pellet, comprising the steps of: To provide a FPCB replacement system for a display panel inspection.

Another specific object of the present invention is to make it possible to securely fix the pellet without being fluidized after the pellet is mounted.

Still another specific object of the present invention is to fix the clamp block having the FPCB mounted thereon at the time of inserting into the contact or pellet, and to stop the insertion when a load occurs in the process of inserting the block into the pellet.

Another specific object of the present invention is to precisely locate the clamp block on which the FPCB mounted on the pellet is mounted so as to be able to be drawn in or pulled out.

According to an aspect of the present invention, A plurality of display panels to be inspected on the rear of the base frame, each pellet having a lever capable of loading and unloading the display panel, the multi-stage pellet being movable; A pellet setting unit for mounting each pellet provided in the truck to a position to be inspected together with transportation, on a front base frame of the truck; A mounting frame part on both sides of the inside and the rear of the pellet setting part on which the pellet carried by the pellet setting part is mounted and held; Each of the magazine holding the respective clamp blocks on which the FPCB is mounted so as to be inspected by contact with the respective display panels mounted on the pellets on both sides of the pellet setting portion; And a clamp for pulling each of the clamp blocks stored in the respective magazines on the front base frame of the pellet setting part and pulling the clamp block to the tip of the lever formed on the pellet while pulling it out or pulling the clamp block from the tip of the lever to each magazine And a block setting unit.

Wherein the pellet setting portion includes a first draw portion including a drawing plate for drawing the pellet provided on the carriage while being transported back and forth on a first guide rail by a first power source and a first power transmitting means, A second power take-off means for moving the first and second power transmission means in a forward and a backward direction on the second guide rails, and a second power take-off means And a lifting frame including a lifting frame for lifting the lever of the pellet by positioning the drawn pellet at a position to be inspected.

The drawing plate is further provided with a pair of fixing pins inserted and fixed by respective insertion holes formed in the pellet.

Wherein each fixing frame located on both sides of the front of the fixing frame part is provided with fixing parts for fixing respective fixing grooves formed on both sides of the front side of the pellet, And pushing the rear end of the pellet toward the fixture of the front mounting frame to fix the pellet without fluidity.

The tightly fixed portion includes respective close-contact plates which are reciprocated by the respective reciprocating means and come into contact with the rear end of the pellet.

Wherein the magazine comprises a frame frame, a plurality of storage spaces formed at both ends of the frame frame on both sides to accommodate the respective clamp blocks, and the frame frame being rotatably mounted on a fixed frame provided on a turntable, The frame is detachably provided by a fixed clamp provided on the fixed frame.

The clamp block includes first and second clamp blocks formed in a manner corresponding to the mounting grooves formed in the pellet and detachably attached to the first and second clamp blocks. In the first and second clamp blocks, the respective FPCBs corresponding to the respective display panels to be inspected are detachable .

Wherein the clamp block setting unit includes a vertical frame that is horizontally transported by the fourth power source and the fourth power transmitting means on the left and right transport rails, a mounting frame that is vertically moved on the vertical rails by the fifth power source and the fifth power transmitting means, And a hand unit which is fixed to the clamping block and moves in a fixed position while being transferred back and forth on the front and rear rails by a sixth power source and a sixth power transmitting means to the mounting frame.

The hand unit includes a main body, a pair of grippers inserted in a pair of fixing holes formed in the clamp block on the front side of the main body and fixed and separated while being moved laterally, The clamp block is inserted into the mounting groove of the pellet by the hand unit inside the main body, and the pressure of the pusher is released when the load is generated in the course of fixing the lever to the tip of the lever, And further includes a safety part for retracting at the same time as stopping.

The main body further includes a conventional camera module for accurately correcting the insertion position of the clamp block when the clamp block is inserted into the tip of the lever through the mounting groove of the pellet by the pusher.

According to the present invention, it is possible to easily replace the pellet by selecting a clamp block equipped with an appropriate FPCB according to the specification of the display panel mounted on the pellet for inspection, It is possible to perform the inspection quickly and accurately without inconvenience, and it is possible to maximize the inspection efficiency.

Further, since the pellet can be stably fixed without being fluidized after the pellet is mounted, the inspection can be made more stable.

In addition, when the clamp block with the FPCB is inserted into the contact or pellet, it can be easily set in the correct position, and the insertion is stopped when a load occurs in the process of inserting the clamp block into the pellet. And the effect of minimizing the damage or breakage of the pellet as well as the clamp block.

Further, since the clamp block on which the FPCB mounted on the pellet is mounted can be precisely positioned and taken in or taken out, accurate inspection can be effected quickly in a short time.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing an overall structure for explaining the present invention, Fig.

FIGS. 2A to 2C are enlarged perspective views illustrating a process of pulling out and mounting pellets by the pellet setting unit of the present invention;

3 is a partial side view for explaining the process of fixing the pellet mounted on the mounting frame part of the present invention,

FIGS. 4A to 4C are plan views illustrating a process of setting a clamp block according to the present invention;

5 is a perspective view for explaining a hand unit of the present invention,

6 is a plan view for explaining the use state according to Fig. 5, Fig.

7 is a plan view for explaining a use state of another embodiment according to FIG.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings. The present invention is not limited to the embodiments.

FIG. 1 is a perspective view showing the entire structure for explaining the present invention, FIGS. 2 (a) to 2 (c) are enlarged perspective views for explaining a process of pulling out and putting pellets by the pellet setting part of the present invention, 4A to 4C are plan views illustrating a process of setting a clamp block according to an embodiment of the present invention. FIG. 5 is a cross-sectional view of a clamp block according to the present invention FIG. 6 is a plan view for explaining a use state according to FIG. 5, and FIG. 7 is a plan view for explaining a use state according to another embodiment according to FIG.

As shown in the drawings, a typical display panel is manufactured in a variety of specifications according to the use purpose thereof, and the FPCB used therein is also variously provided according to specifications of the display panel.

However, when a conventional type of FPCB is applied to a conventional pellet, when inspection of a display panel of another specification is required, the entire pellet is taken out from the inspection equipment and each FPCB is replaced or the FPCB The pellet has a disadvantage that it must be carried out after replacing the entire pellet in which the pellet is mounted, as well as additional inconveniences due to reassembly.

The present invention is intended to facilitate replacement of pellets by selecting a clamp block equipped with an appropriate FPCB according to specifications of a display panel mounted on the pellet for inspection.

The FPCB replacement system 1 for a display panel inspection according to the present invention comprises a base frame 10 manufactured in the form of a frame by a conventional bar-shaped frame; A plurality of display panels P1 to be inspected are mounted on the rear side of the base frame 10 and pellets P each having a lever P2 capable of being loaded and unloaded by the display panel P1 are multi- And a carriage 20 movably provided by a conventional caster provided on the bottom surface. The bogie has a conventional structure in which a pedestal is provided in a multi-stage so that the pellet can be lifted and the pellet to be inspected is raised.

The lever P2 is rotatably coupled to the pellet P by a conventional shaft or pin and is also inserted into the pellet P where the tip of the lever P2 is located, Each mounting groove P3 is formed.

The plurality of display panels mounted on each pellet are preferably placed on the same specification, but different specifications may be put on the display panel. Preferably, the display panels of the same specification to be inspected are placed on each pellet and are inspected. This is to uniformly inspect the display panel mounted on one pellet to improve inspection efficiency.

A pellet setting unit 30 for mounting each pellet P provided on the bogie 20 to a position to be inspected together with transportation, on a front base frame 10 of the bogie 20; And a mounting frame part 40 on which pellets P carried by the pellet setting part 30 are mounted and mounted on both sides of the inside and the rear of the pellet setting part 30.

Each of the clamp blocks C to which the FPCB is mounted so as to be inspected by contact with the respective display panels P1 mounted on the respective pellets P is provided on each side of the pellet setting portion 30, A magazine 50; The respective clamp blocks C accommodated in the respective magazines 50 are taken out and moved on the front base frame 10 of the pellet setting portion 30 so that the tips of the levers P2 formed on the pellets P And a clamp block setting unit 60 for pulling the lever from the tip of the lever and then drawing it into each magazine 50 again.

In other words, the present invention provides not only one type of display panel but also convenience and high efficiency that a simple and quick inspection can be performed without troublesome or inconvenient display panels of different specifications.

That is, the pellets on which the display panel to be inspected to be inspected are transported from the truck by the pellet setting unit together with the transportation is mounted on the mounting frame unit.

Then, the clamp block corresponding to the display panel mounted on the pellet is pulled out from the magazine by the clamp block setting unit and inserted into the mounting groove formed in the pellet. At the same time, the clamp block is inserted to be connected to the tip of the lever which can be loaded and unloaded. do.

Then, by loading a lever provided on the pellet, the presence or absence of an abnormality of the display panel to be inspected is inspected.

After checking the abnormality, the lever is unloaded again, the clamp block is set again by the clamp block setting part, and then the clamp block is drawn out and fed to the magazine.

In addition, a series of inspections is completed as the inspecting pellets are transported and transported again by the pellet setting unit.

Thus, according to the present invention, pellets to be inspected are transported and mounted on a truck, and a clamp block provided on the magazine is selected according to the display panel of the pellet that is carried and mounted, The present invention provides not only the various conventional display panels to be inspected but also the convenience of being able to perform the inspection within a short period of time in a simple and convenient manner without inconvenience or inconvenience as well as high inspection efficiency.

The pellet setting portion 30 is provided with a first power source (not shown) such as a motor or a cylinder, a conventional gear engagement or belt or sprocket connection method linked with the first power source, a link connection method, A drawing plate 32B for drawing the pellets P provided on the carriage 20 while being transported back and forth on the first guide rail 32A by a first power transmission means (not shown) And includes a first draw-out portion 32 which includes the first draw-

The entire first draw-out portion 32 is connected to a common second power source (not shown), such as the first power source, and a second second power transmission means (not shown) in the form of the first power transmission means, (Not shown), such as the first power source, on the column frame 35 located on both sides, and a second power source (not shown) such as the first power source on both sides of the second guide rail 34A, The pellet P drawn by the first draw-out portion 32 is moved to a position to be inspected while being lifted by a third power transmission means (not shown) such as a power transmission means and the pellet P And a lifting frame 36 including a platform 36A for lifting and lowering the lever P2.

A pair of fixing pins 32B-1 inserted into respective insertion holes (not shown) formed on the bottom surface of the pellet P and fixed to be securely and stably pulled out are further provided on the drawing plate 32B .

In other words, the elevating frame is first raised and lowered by the third power source and the third power transmitting means to the position to be drawn out.

Then, after the second power source of the second take-out unit and the second power transmitting means transfer the first take-out unit to the lower side of the pellet provided on the truck to be drawn out, the first power source and the first power- So that the fixing pin provided on the drawing plate can be inserted and supported by the insertion hole formed in the pellet, and at the same time, the drawing plate is moved back to the first and second drawing portions And is transported to the stationary frame section 40 side to mount the drawn pellets P. At this time, the elevator frame 36A presses the lever P2 provided on the pellet P while the elevator frame is lowered while the pellet is mounted on the stationary frame part. When the elevator frame is elevated, Can be unloaded.

In addition, when the inspection of the pellets is completed, the pellet setting unit again transports the pellets in the reverse order of the above-described order.

Accordingly, the pellet setting unit stably pulls out the pellet provided in the carriage with the mounting frame to be inspected, and then transports the pellet to the carriage again when the inspection is completed.

The respective fastening frames 42 disposed on both sides of the front of the stationary frame part 40 are provided with respective fixing holes 42A in the form of a roller in which the respective fixing grooves P4 formed on both sides of the pellet are inserted and fixed The rear end of the pellet P is pushed to the rear of each of the mounting frames 40 located on the rear sides of the mounting frame portion 40 to push the pellet P toward the fixing port 42A of the front mounting frame 42, (Not shown). The tightly adhered portion 45 includes respective close-contact plates 45B that are in contact with the rear end of the pellet P while being reciprocated by a respective normal reciprocating means 45A such as a cylinder or the like.

Accordingly, the stationary frame part serves to securely inspect the pellet by firmly supporting and fixing the pellet mounted on each of the stationary frame formed before and after the stationary frame without fluidity.

The magazine 50 includes a frame 52 in the form of a rectangular frame and a plurality of storage spaces 54 formed at both sides of the inside of the frame 52 to accommodate the respective clamp blocks C, And the mold frame 52 are rotatably mounted on a fixed frame 57 provided on the turntable 56. The mold frame 52 is mounted on the fixed frame 57 in a normal up / And is detachably fixed by a fixing clamp 58 which is fixed or released.

In other words, the mold frame is rotatably provided on the opposite side of the clamp block setting part provided at the front side when the clamp blocks inserted into the housing space of the mold frame are to be replaced, So that it can be smoothly drawn out and replaced in the storage space.

Further, if necessary, the fixing clamp may be released to replace the entire frame frame from the fixed frame.

In addition, the clamp blocks provided in the storage space are provided on the pellets provided on the carriage with respective FPCBs corresponding to specifications of the respective display panels to be inspected.

As a result, the magazine holds the clamp block with the FPCB used in the inspection of the display panel mounted on the pellet, and serves to store various types of clamp blocks in the storage spaces on both sides.

The clamp block C includes first and second clamp blocks C1 and C2 detachably formed to correspond to the mounting groove P3 formed in the pellet P, (C1) and (C2) include detachable FPCB (F) corresponding to each display panel to be inspected.

The first and second clamp blocks are fastened and fixed by conventional bolting, and the FPCB is fixed to each of the first and second clamp blocks by a conventional bracket or by an adhesive member such as double-sided tape or the like.

Accordingly, it is possible to selectively apply appropriate FPCBs according to a display panel to be inspected, and also provides convenience in that it can be easily replaced even when the FPCB is damaged or defective.

The clamp block setting unit 60 includes a fourth power source (not shown) of the same type as the first power source on the left and right conveying rails 61 and a fourth power transmitting means of the same type as the first power transmitting means A second power source (not shown) of the same form as the first power source and a second power source (not shown) of the same type as the first power transmission means are provided in the vertical frame 62, A mounting frame 64 which is lifted and lowered on the vertical rail 62A by power transmission means (not shown), and a sixth power source (not shown) of the same form as the first power source And a hand unit (70) for moving the clamp block (C) fixedly and positively while being transferred back and forth on the front and rear rails (64A) by a sixth power transmission means (not shown) of the same type as the first power source do.

That is, the fourth power source and the fourth power transmitting means serve to transfer the hand unit from the magazine to the left and right so that the clamp block can be drawn or drawn.

And the fifth power source and the fifth power transmitting means serve to adjust the height for drawing or inserting the clamp block into the magazine or the pellet.

Further, the sixth power source and the sixth power transmitting means perform the function of directly drawing or pulling the clamp block while being transferred back and forth.

The hand unit 70 is inserted into a pair of fixing holes C3 formed in the clamp block C on the front side of the main body 72 and is moved in a lateral direction A pair of grippers 74 provided so as to be fixed and separated from each other while being fixed by a gripper 74 at the rear of the gripper 74, A process of inserting the clamp block C into the mounting groove P3 of the pellet P and fixing the clamp block C to the tip of the lever P2 by the hand unit 70 inside the main body 72 And a safety part 70A for releasing the pressure of the pusher to stop the insertion of the pusher when the load is generated. The gripper and the pusher are provided in respective gripper blocks and pusher blocks positioned in front of the main body, and the gripper block and the pusher block are connected to and connected to the respective connection blocks connected to the inside of the main body.

The safety member releases the pressure when a load of more than a pressure set by a pneumatic pressure, a spring, a load cell or the like is generated in a conventional known manner.

Accordingly, the hand unit actually grips the clamp block and serves to pull in or pull out the grip block, and grips and releases the clamp block by a pair of grippers.

Further, the pusher serves to draw the clamp block into the pellet or the magazine while holding the clamp block by the gripper.

Particularly, the safety member provided in the main body is subjected to load when the gripper is inserted into the pellet by inserting the gripper into the pellet, and when the position is not properly inserted, the load is generated. As a result, pressure is released to prevent damage to the clamp block or damage to the pellet The connection block in the main body connected to the gripper is moved backward on a conventional guide rail to secure safety.

Such a safety member is one of important factors that can ensure high safety when the hand unit is not properly set in position with the pellet.

On the other hand, when the clamp block C is inserted into the tip of the lever P2 through the mounting groove P3 of the pellet P by means of the pusher 75 on one side of the main body 72 of the hand unit 70, And further includes a conventional camera module 70B for accurately correcting the position.

In other words, when the camera module is set to a position where the clamp block is to be inserted into the pellet by the clamp block setting unit, if a slight error occurs, the camera module recognizes the error and inserts the clamp block into the pellet To the correct position.

Thereby making it possible to securely and stably and accurately insert the clamp block into the pellet.

Claims

A base frame;

A plurality of display panels to be inspected on the rear of the base frame, each pellet having a lever capable of loading and unloading the display panel, the multi-stage pellet being movable;

A pellet setting unit for mounting each pellet provided in the truck to a position to be inspected together with transportation, on a front base frame of the truck;

A mounting frame part on both sides of the inside and the rear of the pellet setting part on which the pellet carried by the pellet setting part is mounted and held;

Each of the magazine holding the respective clamp blocks on which the FPCB is mounted so as to be inspected by contact with the respective display panels mounted on the pellets on both sides of the pellet setting portion; And

Each of the clamp blocks housed in the respective magazines is drawn on a front base frame of the pellet setting part and then moved to the front end of a lever formed on the pellet or drawn out from the tip of the lever and then drawn into each magazine, A FPCB replacement system for a display panel inspection.
The method according to claim 1,

Wherein the pellet setting portion includes a first draw portion including a drawing plate for drawing the pellet provided on the carriage while being transported back and forth on a first guide rail by a first power source and a first power transmitting means, A second power take-off means for moving the first and second power transmission means in a forward and a backward direction on the second guide rails, and a second power take-off means And a lifting frame for lifting and lowering the lever of the pellet, and a lifting frame for lifting the lever of the pellet.
3. The method of claim 2,

Wherein the drawing plate is further provided with a pair of fixing pins which are inserted and fixed by respective insertion holes formed in the pellet.
The method according to claim 1,

Wherein each fixing frame located on both sides of the front of the fixing frame part is provided with fixing parts for fixing respective fixing grooves formed on both sides of the front side of the pellet, Further comprising a tightly fixed portion for pushing the rear end of the front mounting frame to push the pellet toward the fixing port side of the front mounting frame without fluidity.
5. The method of claim 4,

Wherein the tightly fixed portion includes respective tightening plates which are reciprocated by the respective reciprocating means and brought into contact with the rear end of the pellet.
The method according to claim 1,

Wherein the magazine comprises a frame frame, a plurality of storage spaces formed at both ends of the frame frame on both sides to accommodate the respective clamp blocks, and the frame frame being rotatably mounted on a fixed frame provided on a turntable, Wherein the frame is detachably attached by a fixed clamp provided on the fixed frame.
The method according to claim 1,

The clamp block includes first and second clamp blocks formed in a manner corresponding to the mounting grooves formed in the pellet and detachably attached to the first and second clamp blocks. In the first and second clamp blocks, the respective FPCBs corresponding to the respective display panels to be inspected are detachable The FPCB replacement system for display panel inspection.
The method according to claim 1,

Wherein the clamp block setting unit includes a vertical frame that is horizontally transported by the fourth power source and the fourth power transmitting means on the left and right transport rails, a mounting frame that is vertically moved on the vertical rails by the fifth power source and the fifth power transmitting means, And a hand unit for holding the clamp block and moving the clamp block in a fixed position while being transferred back and forth on the front and rear rails by a sixth power source and a sixth power transmitting means to the mounting frame.
9. The method of claim 8,

The hand unit includes a main body, a pair of grippers inserted in a pair of fixing holes formed in the clamp block on the front side of the main body and fixed and separated while being moved laterally, The clamp block is inserted into the mounting groove of the pellet by the hand unit inside the main body, and the pressure of the pusher is released when the load is generated in the course of fixing the lever to the tip of the lever, Further comprising: a safety unit for stopping and reversing the FPCB.
10. The method of claim 9,

Further comprising a conventional camera module for accurately correcting the insertion position of the clamp block when the clamp block is inserted into the tip of the lever through the mounting groove of the pellet by a pusher on one side of the main body.