KR100768712B1 - Test device of organic electro display panel - Google Patents

Abstract

An inspection device of an organic electroluminescence display panel is provided to reduce a manufacturing cost by reusing a panel module after an inspection of the panel module. An inspection device of an organic electroluminescence display panel includes an inspection substrate and a compressing unit(30). The inspection substrate includes a second contacting plane. The second contacting plane supplies power by being contacted to a first contacting plane of a driver. The driver is coupled to a pad which is formed on a side of the panel part. The compressing unit(30) compresses the driver by moving up and down for closely contacting the first and second contacting planes, and includes a coupling part(31), a fixed part(32), an operation part(33), a knob(34), a compressing part(35), and an elastic part(36). The coupling part(31) is coupled to the inspection substrate. The fixed part(32) is mounted on an upper part of the coupling part(31) and has an open operation groove. The knob(34) has a cam shape and is rotatably coupled to the operation groove. The knob(34) is elongated from one side of the operation part(33). The compressing part(35) compresses the first contacting plane of the driver. The elastic part(36) moves the compressing part(35) upward unless the operation part(33) compresses the compressing part(35).

Description

Organic EL display panel inspection device {TEST DEVICE OF ORGANIC ELECTRO DISPLAY PANEL}

1 is a view showing a conventional organic EL display panel inspection.

2 is a view showing a state for inspecting the panel module is mounted on the test substrate according to the present invention.

3 is a view showing a pressing member according to the present invention.

4 and 5 is an operating state diagram for the pressing member of FIG.

* Description of the symbols for the main parts of the drawings *

20: test substrate 30: pressure member

31: coupling portion 32: fixed portion

33: operating part 34: handle

35 press portion 36 elastic portion

The present invention relates to an organic EL display panel inspection apparatus, characterized in that the pressing member according to the principle of the cam keeps the driver and the test substrate in close contact with each other, so that the display panel module can be electrically connected to the test substrate even without soldering. .

In general, an organic EL display is one of flat panel display devices, and is formed between an anode layer and a cathode layer on a wafer through an organic thin film layer, which is an organic electroluminescent layer, and forms a matrix having a very thin thickness.

1 is a view showing a conventional organic EL display panel inspection.

As shown in the drawing, a general organic EL display panel is composed of a panel portion 11, a cover portion 12, and a driver 15.

The panel unit 11 includes an element 14 including a plurality of pixels, and the cover unit 12 is bonded to the panel unit 11 while covering the element 14.

At this time, the size of the panel portion 11 is larger than the size of the cover portion 12. In the panel portion 11 which is not covered by the cover portion 12, a pad 13 for contacting the driver 15 is provided. Is formed.

The pad 13 is connected to each other by an element 14 and an electrode, and coupled to the driver 15, the element 14 operates under the control of the driver 15 to display an image.

Meanwhile, an organic EL display panel is usually manufactured, and then a part of the produced product is selected to test whether the panel operates correctly.

That is, by binding the organic EL display panel with the test substrate 18 and supplying power, the state of the panel can be checked.

To this end, the test board 18 is provided with a binding pin 19 protruding upward, and the driver 15 is provided with a binding hole 16 for binding with the binding pin 19, wherein the binding hole 16 part is provided. Each of the binding pins 19 is seated and then soldered to maintain the binding state between the driver 15 and the test substrate 18.

However, if the driver and the test substrate are bound to each other by the soldering operation, damage to the thin film-shaped driver occurs in the process of removing the solder after the inspection is completed.

In other words, if the driver is damaged, the display panel selected for inspection cannot be reused, thereby increasing the manufacturing cost.

Accordingly, the present invention has been made to solve the above problems, the present invention is to ensure that the organic EL display panel is in close contact with the test substrate by a separate equipment that does not require soldering operation, it is possible to reuse the inspected panel It is aimed at making it possible.

The present invention for achieving the above object is a test substrate having a second contact surface for supplying power by contacting the first contact surface of the driver coupled to the pad provided on one side of the panel portion; And a pressing member which presses the driver while the pressing portion moves up and down by rotating the cam-shaped operating part, so that the first contact surface and the second contact surface come into close contact with each other.

The pressing member in the present invention is a coupling portion coupled to the test substrate; A fixing part mounted to an upper side of the coupling part and having an operating groove opened; An operation unit rotatably coupled to an operation groove of the fixing unit and having a cam shape; A handle part extending from one side of the operation part; A pressing unit which is in contact with a lower side of the operating unit and presses the first contact surface of the driver while being moved downward by the rotation of the operating unit; And an elastic part positioned between the pressing part and the coupling part to move the pressing part upward when the operating part does not press the pressing part.

In the present invention, one or more guide rods protrude to the upper side of the coupling portion, and the pressing portion is formed with a through hole through which the guide rod is penetrated, and the pressing portion is supported by the guide rods.

In the present invention, the pressing portion is a pressing plate in contact with the first contact surface; And a support plate extending from a portion of an upper side of the pressing plate, and having an upper side in contact with the operation unit, having a through hole corresponding to the guide rod, and having a bottom in which an insertion groove is inserted into one end of the elastic portion. The other end of the portion is inserted into the fixing groove of the coupling portion.

In the present invention, a guide hole is formed at one side of the coupling part, and a part of the pressing plate is guided to the guide hole when moving downward.

In the present invention, one side of the operating unit is provided with a fixing surface forming a horizontal plane with the support plate to maintain the rotated state of the operating unit.

In the present invention, the bottom surface of the pressure plate is further provided with a cushioning material, the cushioning material is manufactured using silicon, the inside of the buffer material is formed through holes.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the inspection apparatus according to the present invention.

In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description.

In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or custom.

Therefore, definitions of these terms should be made based on the contents throughout the specification.

On the other hand, this embodiment is not intended to limit the scope of the present invention but merely presented by way of example, the same parts as the conventional configuration uses the same reference numerals or names.

Figure 2 is a view showing a state for testing the panel module is mounted on the test substrate according to the present invention, Figure 3 is a view showing a pressing member according to the present invention, Figure 4 and Figure 5 is a pressing member of Figure 3 This is a working state diagram.

As shown, a panel module in which the panel unit 11 and the driver 15 are integrated is mounted on the test substrate 20 to check the operation state of the panel unit 11.

In this case, the panel unit 11 is provided with some pixels, and a driver is attached to the pad and is electrically connected to the panel unit 11, and thus the detailed description thereof will be omitted.

One end portion of the driver 15 is provided with a first contact surface 21, and a second contact surface 22 corresponding to the first contact surface is provided on the test substrate 20.

At this time, when the second contact surface 22 is the binding pin 19 of FIG. 1, the first contact surface 21 is a binding hole 16 through which the binding pin 19 passes.

Power is supplied to the driver 15 by the contact between the first contact surface 21 and the second contact surface 22, and the panel unit 11 implements an image under the control of the driver 15.

At this time, the pressing member 30 is mounted on the test substrate 20, the pressing member 30 presses the driver 15 by the cam method.

Thus, the first contact surface 21 and the second contact surface 22 are brought into close contact with each other without soldering, and a stable inspection of the panel module is performed.

The pressing member 30 is provided with a coupling part 31, a fixing part 32, an operating part 33, a handle part 34, a pressing part 35, and an elastic part 36.

The coupling part 31 is positioned above the test substrate 20 and is screwed to the test substrate 20.

The fixing part 32 has an operating groove 321 mounted and opened on the upper side of the coupling part 31. The fixing part 32 may be one or a pair of symmetrical parts, and the fixing part ( 32) has an open shape from the upper end of the center to a predetermined length below.

The operation part 33 is inserted into the operation groove 321 and rotates itself through the combination of the fixing part 32 and the pin 322.

At this time, the operating unit 33 has a cam shape, thereby pressing the pressing unit 35 during self-rotation.

The handle portion 34 is formed to extend on one side of the operating portion 33, the user to hold the handle portion 34 to rotate the operating portion (33).

The pressing unit 35 is in contact with the lower side of the operating unit 33, and moves downward by the rotation of the operating unit 33, when the pressing unit 35 is the maximum downward movement of the first contact surface ( 21) Pressurize.

The elastic part 36 is located between the pressing part 35 and the coupling part 31 and has its own elasticity. When the operating part 33 does not press the pressing part 35, it presses by its elasticity. The part 35 is moved upwards.

Meanwhile, at least one guide bar 313 protrudes above the coupling part 31, and a through hole 351 through which the guide bar 313 penetrates is provided in the pressing part 35.

Then, the press part 35 is supported by the guide rod 313, and the stable vertical movement of the press part 35 is attained.

The pressing unit 35 is made of one component, or is made of a pressing plate 352 and a support plate 353 as shown in the embodiment of the present invention.

In this case, the pressing plate 352 is a portion in direct contact with the first contact surface 21, and the support plate 353 is partially extended from the upper side of the pressing plate 352 or is coupled to the upper side of the pressing plate 352. .

The upper side of the support plate 353 is in contact with the operating portion 33, the through hole 351 corresponding to the guide rod 313 is formed.

Spring may be used as the elastic portion 36, the bottom surface of the support plate 353 is provided with an insertion groove 354, one end of the elastic portion 36 is inserted, the other end of the elastic portion 36 is a coupling portion ( 31 is inserted into the fixing groove 311.

For the stable mounting of the elastic portion 36, the insertion groove 354 and the fixing groove 311 is formed in a straight line.

When the guide hole 312 is formed at one side of the coupling part 31, and a part of the pressure plate 352 is guided to the guide hole 312 when moving downward, stable up and down movement of the pressure plate 352 is possible, and the pressure member ( 30) to reduce the overall volume.

One side of the operating unit 33 is provided with a fixing surface 331 forming a horizontal plane with the support plate 353 can be fixed to the state of the operating unit 33.

On the other hand, since the conventional driver 15 has a thin film form, which is weak against impact, a shock absorbing material 355 is further provided on the bottom of the pressure plate 352.

The cushioning material 355 may be attached to the bottom of the driver 15 by an adhesive, or may be fitted between portions projecting from the bottom of the driver 15.

The buffer material 355 is made of a soft material to minimize the impact on the driver 15 itself even though direct contact with the driver 15 occurs, but uses silicon as a main material.

In addition, the buffer member 355 may have a through hole 356 penetrating therein to reduce the impact applied to the driver 15 by the air layer.

Referring to the operation of the organic EL display panel inspection device having the above structure is as follows.

The pressing member 30 having the coupling part 31, the fixing part 32, the operating part 33, the handle part 34, the pressing part 35, and the elastic part 36 is attached to the test substrate 20. It is seated, and the pressing member 30 and the test substrate 20 are maintained in a fixed state by screwing the coupling portion 31 and the test substrate 20.

In the above state, the first contact surface 21 of the driver 15 is positioned on the second contact surface 22 of the test substrate 20, and the first contact surface 21 and the second contact surface through the pressing member 30. (22) is in close contact.

That is, when the handle 34 of the pressing member 30 according to the present invention is moved downward, the operating part 33 rotates in the operating groove 321 of the fixing part 32.

When the operating part 33 is rotated and the fixed surface 331 is in contact with the support plate 353 as shown in FIG. 4, the contacted parts are horizontal to each other, even if the user does not hold the handle part 34 and give no continuous force. The operating part 33 is not rotated and maintains it.

On the other hand, the pressing unit 35 in contact with the lower side of the operating unit 33 in accordance with the rotation of the operating unit 33 is to move downward.

At this time, the guide rod 313 mounted on the coupling portion 31 passes through the through hole 351 of the support plate 353, so that the coupling portion 31 is vertically up and down stably by the supporting force of the guide rod 313. Make a move.

And, the guide hole 312 is formed on one side of the coupling portion 31, the pressing plate 352 is moved up and down inside the guide hole 312, to enable the stable vertical vertical movement of the additional pressing portion (35). In addition, the assembly volume of the pressing unit 35 and the coupling unit 31 is minimized.

This enables an optimized design of the pressing member 30.

On the other hand, when the fixed surface 331 and the support plate 351 is in surface contact, even if the user does not rotate the operating unit 33, the operating unit 33 is not rotated, the pressure plate 352 is moved downward as possible to the driver By pressurizing the 1st contact surface 21 of (15), it is designed so that the 1st contact surface 21 and the 2nd contact surface 22 may contact.

When the inspection of the panel module is completed while the first contact surface 21 and the second contact surface 22 are in close contact with each other by the pressing member 30, the user is not in contact with the fixing surface 331 and the support plate 353. Lift the handle 34 upwards.

Then, when the pressing portion 32 is moved downward, the pressing portion 35 is moved upward by the self-elastic restoring force of the contracted elastic portion 36, and the operating portion 33 in contact with this is shown in FIG. Rotate as

On the other hand, the damage of the driver 15 is suppressed by mounting the shock absorbing material 355 made of silicon on the bottom surface of the pressure plate 352.

That is, by forming the air layer through the through hole 356 of the buffer material 355, even if excessive pressing force of the pressing unit 35 occurs, the driver 15 is protected by shock absorption by the air layer.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and those skilled in the art to which the art belongs can make various modifications and other equivalent embodiments therefrom. Will understand.

Therefore, the true technical protection scope of the present invention will be defined by the claims below.

As described above, the organic EL display panel inspection apparatus according to the present invention has an effect of eliminating a process in which the pressing member is coupled by a soldering operation to the driver and the test substrate of the panel module.

Thus, even if the inspection of the panel module is completed, there is no damage to the driver, so that the inspected panel module can be reused, thereby reducing the manufacturing cost.

In particular, by pressing the driver while moving the pressing unit vertically up and down, there is an effect of suppressing the occurrence of damage to the thin film-shaped driver.

Claims (9)

delete A test substrate having a second contact surface for supplying power by contacting a first contact surface of a driver coupled to a pad provided at one side of the panel unit; And And a pressurizing member configured to press the driver while the pressurizing portion moves up and down by rotating the cam-shaped operating part, so that the first contact surface and the second contact surface come into close contact with each other. The pressing member is a coupling portion coupled to the test substrate; A fixing part mounted to an upper side of the coupling part and having an operating groove opened; An operation unit rotatably coupled to an operation groove of the fixing unit and having a cam shape; A handle part extending from one side of the operation part; A pressing unit which is in contact with a lower side of the operating unit and presses the first contact surface of the driver while being moved downward by the rotation of the operating unit; And The organic EL display panel inspection apparatus including an elastic unit positioned between the pressing unit and the coupling unit to move the pressing unit upward when the operating unit does not press the pressing unit. The method of claim 2, One or more guide rods protrude to the upper side of the coupling portion, An organic EL display panel inspection apparatus in which the pressing portion is formed with a through hole through which the guide rod penetrates, and the pressing portion is supported by the guide rod. The method of claim 3, wherein The pressing unit is a pressing plate in contact with the first contact surface; And The support plate extends from a portion of the upper side of the pressing plate, the upper side is in contact with the operating portion, has a through hole corresponding to the guide rod, and has a support plate having an insertion groove into which one end of the elastic portion is inserted. The other end of the elastic portion of the organic EL display panel inspection device is inserted into the fixing groove of the coupling portion. The method of claim 4, wherein The guide hole is formed on one side of the coupling portion, the organic EL display panel inspection apparatus is guided to the guide hole when a portion of the pressing plate is moved downward. The method of claim 4, wherein Organic EL display panel inspection device on one side of the operating unit is provided with a fixed surface forming a horizontal plane with the support plate to maintain the rotated state of the operating unit. The method of claim 4, wherein An organic EL display panel inspection device further provided with a cushioning material on the bottom of the pressure plate. The method of claim 7, wherein The buffer material is an organic EL display panel inspection device manufactured using silicon. The method according to claim 7 or 8, The organic EL display panel inspection device is formed through the interior of the buffer material.

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