KR20070051647A - Test device of organic electro display panel - Google Patents

Abstract

The present invention relates to an organic EL display panel inspection apparatus, comprising: a test substrate having a second ground plane contacting and supplying power to a first ground plane of a driver respectively coupled to a pad selectively provided at a side of the panel portion; Fixing body is provided with a guide plate on the upper portion so that the test substrate is inserted; And a pressing member mounted on an upper side of the fixed body and pressurizing the respective drivers so that the first ground plane and the second ground plane come into close contact with each other, thereby maintaining binding between the driver and the test substrate without soldering. It is done.

Organic EL display panel, inspection, elasticity, screwdriver, silicon

Description

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

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

Figure 2 is a side view showing a state for the test substrate and the panel module is inserted into the test fixture according to the present invention for inspection.

3 is a perspective view showing a coupling relationship between a fixture and a pressing member according to the present invention.

4 is a cross-sectional view showing a pressing unit according to the present invention.

* Explanation of symbols for main parts of drawings *

20: test substrate 30: fixture

31: guide plate 32: guide rod

40: pressure member 41: support plate

42: fixed bar 43: top plate

48: pressure plate 51: pressure part

56 elastic body 58: cushioning material

The present invention relates to an inspection apparatus, and in more detail, the pressing member is in close contact with the driver and the test substrate, the organic EL display, characterized in that it is possible to test by electrically connecting the display panel module to the test substrate even without soldering operation It relates to a panel inspection device.

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.

One or more pads 13 may be selectively provided on each side end portion of the panel unit 11, and the driver 15 may contact the pads 13.

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 ground plane for supplying power by contacting the first ground plane of the driver respectively coupled to the pad selectively provided on the side of the panel portion; Fixing body provided with a guide plate on the upper portion so that the test substrate is inserted; And an urging member mounted on an upper side of the fixed body and pressurizing the respective drivers so that the first ground plane and the second ground plane come into close contact with each other.

In the present invention, the pressing member comprises a pair of support plates fixed to the fixed body at a predetermined interval; Fixing bars having both ends respectively coupled to the inner sides of the support plates; An upper plate coupled to an upper end of each of the supporting plates and having an operation hole in one direction; A rotating plate coupled to the fixed bar to be rotatable; A handle coupled to one side of the rotating plate to rotate between the operation hole and one side of the fixing body; A pair of auxiliary plates rotatably coupled to the rotating plate; A mounting plate coupled to an end of the auxiliary plate and rotating the auxiliary plate at a coupling portion; A pressure plate fixed to the bottom of the mounting plate and vertically moved; And at least one pressing part provided on the pressing plate to press each of the drivers, wherein at least one guide rod protruding upward from the fixing body guides the vertical movement of the pressing plate by passing through the guide hole provided in the pressing plate. It is characteristic.

In the present invention, the pressing portion is a rectangular contact in contact with the driver; Coupling screws spaced in both directions of the contact and fixed at one end thereof; A coupling rod having a screw hole inside the lower end to be coupled to the coupling screw and penetrating the through hole provided in the pressing plate; A washer having a tubular shape so that the coupling rod penetrates and one end is caught on the bottom of the upper end of the coupling rod, and the other end is in contact with the upper side of the pressure plate; And an elastic body having one end inserted into an installation groove provided on the bottom surface of the pressing plate, and the other end inserted into a mounting groove provided on the upper surface of the contact body.

In the present invention, the bottom surface of the contact is characterized in that the buffer material is further provided.

In the present invention, the buffer is characterized in that it is manufactured using silicone.

In the present invention, the interior of the buffer is characterized in that the through-hole is formed.

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 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 side view showing a state for testing the test substrate and the panel module is inserted into the fixture according to the invention, Figure 3 is a perspective view showing a coupling relationship between the fixture and the pressure member according to the present invention, Figure 4 It is sectional drawing which shows the press part which concerns on this invention.

Referring to FIG. 2, a panel module in which the panel unit 11 and one or more drivers 15 are integrated is mounted on the test substrate 20 to check the operating 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 each other, and thus the detailed description thereof will be omitted.

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

At this time, when the second ground surface 22 is the binding pin 19 of FIG. 1, the first ground 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 ground plane 21 and the second ground plane 22, and the panel unit 11 implements an image under the control of the driver 15.

In this case, the test body 100 having the panel module 11 and the test substrate 20 in which the panel unit 11 and the driver 15 are integrated together is fixed by the guide plate 31 of the fixed body 30. ), The pressing member 40 mounted on the fixed body 30 presses each driver 15.

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

Here, the guide plate 31 is provided with a pair spaced apart on the upper side of the fixed body 30, the pressing member 40 is mounted on the upper side of the fixed body 30 in close proximity to one side of each guide plate 31 The test substrate 20 is inserted between the guide plates 31.

The pressing member 40 is the support plate 41, the fixing bar 42, the upper plate 43, the rotating plate 44, the handle 45, the auxiliary plate 46, the mounting plate 47, the pressing plate 48 and The pressing part 51 is provided.

The support plate 41 is fixed to the upper side of the fixing body 30, it consists of a pair of predetermined intervals.

Both ends of the fixing bar 42 are coupled to the inner surface of each support plate 41.

The upper plate 43 is coupled to the upper end of each support plate 41 and has an operation hole 43a in one direction.

The rotating plate 44 is rotatably coupled to the fixed bar 42, the handle 45 is coupled to one side of the rotating plate 44 to rotate between the operation hole (43a) and one side of the fixed body 30 do.

At this time, the fixing bar 42 is equipped with a fixing washer (42a) to prevent the left and right flow of the rotating plate 44 so that the handle 45 is easily drawn into the operation hole (43a).

The auxiliary plate 46 is composed of a pair, one end is coupled to the rotary plate 44 so as to be rotatable, the other end is coupled to the mounting plate 47 to be rotatable.

The pressure plate 48 is fixed to the bottom of the mounting plate 47 is moved up and down, the pressure unit 51 is provided on the bottom of the pressure plate 48 to press each driver 15.

At this time, the pressing unit 51 is provided corresponding to the number of the driver 15 for the inspection.

In addition, one or more guide rods 32 protrude upward from the fixing body 30 to guide the vertical movement of the pressing plate 48, and the guide plate 32 penetrates the guide plate 32 through the pressing plate 48. 48a).

On the other hand, the pressing portion 51 is elastic to prevent deformation of the driver 15 due to excessive pressing force, the contact body 52, the coupling screw 53, the coupling rod 54, the washer 55 and An elastic body 56 is provided.

The contact body 52 has a bottom surface in direct contact with the driver 15 and has a rectangular shape.

The coupling screw 53 is spaced in both directions of the contact body 52 so that one end is fixed, and may be screwed upward from the bottom of the contact body 52, and a thread is formed on an outer circumferential surface thereof.

The coupling rod 54 has a screw hole 54a inside the lower end to be coupled to the coupling screw 53 and passes through the through hole 48b provided in the pressure plate 48.

The washer 55 has a tubular shape so that the coupling rod 54 penetrates, and one end is caught on the bottom of the upper end of the coupling rod 54, and the other end is in contact with the upper side of the pressure plate 48.

One end of the elastic body 56 is inserted into the installation groove 48c provided on the bottom surface of the pressure plate 48, and the other end of the elastic body 56 is inserted into the mounting groove 52c provided on the upper surface of the contact body 52.

This elastic body 56 may be a spring.

On the other hand, since the conventional driver 15 has a thin film form that is weak against impact, a buffer 58 is further provided on the bottom surface of the contact body 52.

The buffer 58 may be attached to the bottom surface of the contact body 52 by an adhesive, or may be fitted between portions projecting from the bottom surface of the contact body 52.

The shock absorbing material 58 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 shock absorbing material 58 is formed with a through hole 59 penetrating therein, thereby reducing 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 first ground plane 21 of each driver 15 is positioned on the second ground plane 22 of the corresponding test substrate 20, and the test substrate 20 is provided on the upper side of the fixture 30. It is inserted between the plates 31.

Then, the pressing member 40 mounted on the fixed body 30 comes into close contact with the first ground plane 21 and the second ground plane 22.

That is, in the state where the first handle 45 is inserted into the operation hole 43a, the pressing member 40 cannot press the driver 15, but the handle 45 is opened from the operation hole 43a for inspection. Rotate in the direction.

Then, the rotating plate 44 is rotated around the fixed bar 42, and the auxiliary plate 46 and the mounting plate 46 are moved downward, so that the pressing unit 51 mounted on the pressing plate 48 is a driver. Directly press (15).

At this time, since the guide rod 32 protruding from the fixing body 30 passes through the guide hole 48a of the pressing plate 48, the pressing plate 48 is vertically moved up and down.

On the other hand, the pressing portion 51 mounted on the pressing plate 48 prevents the driver 15 from being damaged by the elastic body 56.

That is, when the pressure plate 48 is excessively moved downward, the force of the contact body 52 of the pressure unit 51 to press the driver 15 is increased, but the elastic body 56 is contracted, the contact body 52 and the coupling The rod 54 is moved upward to protect the driver 15.

On the other hand, damage to the driver 15 is suppressed by mounting the shock absorbing material 58 made of silicon on the bottom surface of the contact body 52.

That is, by forming the air layer through the through hole 59 of the buffer material 58, even if excessive pressing force of the contact body 52 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.

Claims (6)

A test substrate having a second ground plane for supplying power by contacting a first ground plane of a driver respectively coupled to a pad selectively provided at a side of the panel unit; Fixing body is provided with a guide plate on the upper portion so that the test substrate is inserted; And And an urging member mounted on an upper side of the fixed body to press each of the drivers so that the first ground plane and the second ground plane come into close contact with each other. The method of claim 1, The pressing member includes a pair of support plates fixed to the fixed body at a predetermined interval; Fixing bars having both ends respectively coupled to the inner sides of the support plates; An upper plate coupled to an upper end of each of the supporting plates and having an operation hole in one direction; A rotating plate coupled to the fixed bar to be rotatable; A handle coupled to one side of the rotating plate to rotate between the operation hole and one side of the fixing body; A pair of auxiliary plates rotatably coupled to the rotating plate; A mounting plate coupled to an end of the auxiliary plate and rotating the auxiliary plate at a coupling portion; A pressure plate fixed to the bottom of the mounting plate and vertically moved; And At least one pressing portion provided on the pressing plate for pressing the respective driver, At least one guide rod protruding upward from the fixing body penetrates the guide hole provided in the pressing plate to guide the vertical movement of the pressing plate. The method of claim 2, The pressing portion is a rectangular contact in contact with the driver; Coupling screws spaced in both directions of the contact and fixed at one end thereof; A coupling rod having a screw hole inside the lower end to be coupled to the coupling screw and penetrating the through hole provided in the pressing plate; A washer having a tubular shape so that the coupling rod penetrates and one end is caught on the bottom of the upper end of the coupling rod, and the other end is in contact with the upper side of the pressure plate; And One end is inserted into the installation groove provided on the bottom of the pressure plate, the organic EL display panel inspection device comprising an elastic body the other end is inserted into the mounting groove provided on the upper surface of the contact. The method of claim 3, wherein An organic EL display panel inspection device further comprises a buffer on the bottom of the contact. The method of claim 4, wherein The buffer material is an organic EL display panel inspection device manufactured using silicon. The method according to claim 4 or 5, The organic EL display panel inspection device is formed through the interior of the buffer material.

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