KR101285166B1 - Film type pin board - Google Patents

Abstract

PURPOSE: A film type pin board is provided to be in contact with terminals by forming elasticity of multiple stages, thereby stably performing an electrical test. CONSTITUTION: A film type pin board includes a block body (100), an elastic part (200), a PCB, and a test part (400). The elastic part is installed to be inclined downwardly at the lower end of the block body and arranges one end to protrude from one end of the block body. The PCB is installed on the back end of the block body. The test part is manufactured in a chip on film (COF) method having a plurality of contact lines and includes a first test part and a second test part. The test part is in contact with one end of the elastic part.

Description

Film type pin board {FILM TYPE PIN BOARD}

The present invention relates to a film type pin board, and more particularly, to a film type pin board that can stably perform an electrical test for a panel.

In general, a flat panel display panel refers to a display device such as an LCD or a PDP. A liquid crystal display (LCD) is a thin film transistor (TFT), twisted nematic (TN), super twisted nematic (STN), and CSTN ( There are Color Super Twisted Nematic (DSTN), Double Super Twisted Nematic (DSTN) type, and Organic Luminescence (EL) type. These panels are adopted in liquid crystal display panels of small sized communication devices such as mobile phones, in addition to large home appliances.

The probe block is used to check whether the small liquid crystal display panel operates normally without pixel error.

Recently, as the liquid crystal display panel becomes higher in quality, the density of pixels increases, and as a result, the necessity of a narrow pitch probe block increases due to the reduction in size. The probes developed to date have been made of a needle type made of tungsten or rhenium tungsten stainless wire, a blade type made of nickel or beryllium copper, and a copper plate on a polymide film. Film type produced by etching and raising other conductors, Hybrid type in which conductive medium is injected into film type using semiconductor process technology, and Pogo Pin using spring tension Pogo Type, which is manufactured by using, and MEMS Type (MEMS Type) using semiconductor MEMS process technology.

As described above, a conventional probe block for inspecting a liquid crystal display panel is generally provided in the form of a needle and bonded to the needle by an epoxy resin to limit the outer diameter of the needle. There is a problem that can not respond.

That is, the mounting surface of the needle holder on which the needle is mounted is limited, but the flat panel display device is highly integrated, so that the number of terminals is very large, so that it is difficult to arrange an appropriate number thereof with the wire type needle.

In addition, accurate physical contact with the contacts in the liquid crystal display panel is impossible due to the impact during the inspection, and bending or deformation of the probe pins occurs by absorbing the impact generated at the contact multiple times, thereby causing an error as a result of the inspection. There is a problem.

In addition, since a plurality of measuring end points are not formed with the contact portion of the flat panel display panel, when a measurement error occurs in the measurement portion, there is a problem that reliability of inspection cannot be secured.

In addition, since an electrical signal noise problem occurs in the blade type and direct contact with the contact portion of the flat panel display panel does not occur, stable electrical inspection may be performed by physical force due to an increase in the overdrive OD. There is also a problem.

KR 10-1160076 B1

SUMMARY OF THE INVENTION An object of the present invention is to provide a multi-shock absorbing film type pin board capable of stably performing electrical tests on a panel by forming a plurality of elastic contacts with terminals formed on the panel.

In addition, another object of the present invention is to provide a film type pin board which can easily check the alignment visually using a film having protruding contact lines.

In addition, the present invention, using a film produced in a chip on film (COF) method in which a plurality of electrode lines forming a predetermined interval without using an FPC film is easy to cope with a test panel of various sizes Provide the board.

In one aspect, the invention is a block body; An elastic part installed to be inclined downward at a lower end of the block body and having one end protruding to one end of the block body; A PCB installed at a rear end of the block body; And one end of which is bent at one end of the elastic part to elastically contact the one end of the elastic part in multiple stages, and the other end is bent at a predetermined position of the bottom of the PCB to be in contact with the COF having a plurality of contact lines having a predetermined interval ( and a soft test part manufactured by a chip on film method, wherein the soft test part comprises a film type pin board including a first test part and a second test part formed by cutting a film formed according to a standard specification of a COF method. to provide.

The lower surface of the block body is preferably formed with an inclined surface formed to be inclined downward.

One end of the block body is formed with a fitting groove forming a more steep inclination than the inclination of the inclined surface, it is preferable that the fitting groove is fitted with an elastic body to elastically support the upper surface of one end of the elastic portion.

One end of the elastic portion is preferably in contact with the lower surface of the elastic body.

It is preferable that the said elastic part is a leaf spring.

The test unit includes a film in which the plurality of contact lines are formed.

A first folding part is formed at one end of the film, and a second folding part is formed at the other end of the film.

The first folding portion is fixed to the lower end of the end of the leaf spring protruding forward of the block body through an insulating tape, and the second folding portion is attached to the lower surface of the PCB in a bended state and electrically It is preferable to energize.

The contact lines may be formed to protrude at intervals on an outer surface of the first folding part.

One end of the leaf spring, it is preferable that the extension piece is further formed to be attached to the first folding portion.

It is preferable that an elastic member is further inserted into an inner portion of the first folding portion.

The leaf spring is preferably formed of any one of spring steel, resin, plastic, and stainless steel.

It is preferable that the intervals of the contact lines are different from each other at one end of the film and the other end thereof, and the gap may be corrected by applying an external force to the film.

The present invention has an effect of stably performing an electrical test for the panel by forming a plurality of elastic contact with the terminals formed on the panel.

In addition, the present invention has the effect of easily confirming the alignment visually using a film having projecting contact lines.

In addition, the present invention has the effect that it is possible to cope with test panels of various sizes by using a film manufactured in a COF method in which the distance between both ends is different without using a flexible circuit board.

1 is a top perspective view of a film type pin board according to the present invention.
2 is a bottom perspective view of a film type pin board according to the present invention.
3 is a perspective view showing a coupling relationship between an elastic part and a test part according to the present invention.
4 is a view illustrating a configuration of a first folding part installed in the elastic part of FIG. 3.
5 is a view illustrating a configuration of a second folding unit of FIG. 3.
6 is a bottom view of the film tine pin board according to the present invention.
7 is a plan view showing a test unit according to the present invention.
8 is a cross-sectional view of a film type pin board according to the present invention.
9 is a front view of a film type pin board according to the present invention.

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

Embodiments of the present invention are provided to more fully describe the present invention to those skilled in the art, and the following embodiments may be modified in various other forms, The present invention is not limited to the following embodiments. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an," and "the" include plural forms unless the context clearly dictates otherwise. Also, " comprise " and / or " comprising " as used herein specify the presence of stated shapes, numbers, steps, operations, elements, elements, and / , But does not preclude the presence or addition of one or more other features, integers, operations, elements, elements, and / or groups. As used herein, the term " and / or " includes any and all combinations of any of the listed items.

Although the terms first, second, etc. are used herein to describe various elements, regions and / or regions, it should be understood that these elements, components, regions, layers and / Do. These terms do not imply any particular order, top, bottom, or top row, and are used only to distinguish one member, region, or region from another member, region, or region. Thus, the first member, region or region described below may refer to a second member, region or region without departing from the teachings of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings schematically showing embodiments of the present invention. In the figures, for example, variations in the shape shown may be expected, depending on manufacturing techniques and / or tolerances. Accordingly, embodiments of the present invention should not be construed as limited to any particular shape of the regions illustrated herein, but should include variations in shape resulting from, for example, manufacture.

1 and 2, the film-type pin board according to the present invention is largely composed of a block body 100, an elastic portion 200, a PC 300, and a test unit 400.

The block body 100 has an auxiliary block body 101.

At least one bearing and at least one elastic member may be coupled to the auxiliary block body 101. The block body 100 may be vertically moved with elasticity by being combined with at least one bearing and at least one elastic member coupled to the auxiliary block body 101.

The bearing may have a cross guide structure including a first cross roll bearing and a second cross roll bearing. For example, the second cross roll bearing is coupled to and fixed to the auxiliary block body 101, and the first cross roll bearing is coupled to the block body 100 to move vertically, such that the block body 100 may move vertically. .

When the bearing is the cross roller guide, rollers protrude from the second cross roll bearing, and the first cross roll bearing may move vertically as the protruding rollers are inserted into or separated from the groove formed in the first cross roll bearing. have.

When the bearing is the cross ball guide, the first cross roll bearing is vertically formed as balls protrude from the second cross roll bearing, and the protruding balls are inserted or separated into the grooves formed in the first cross roll bearing. I can move it. One of the bearings may be coupled to the block body 100 by a fastening member, and the other may be coupled to the auxiliary block body 101 by a fastening member. Of course, the reverse may be combined.

Since the structure and operation of the cross roller guide and the cross ball guide are obvious to those skilled in the art, detailed descriptions thereof will be omitted below. In addition, the bearing of the present invention is not necessarily limited to a cross roller guide or a cross ball guide, and other devices may be used as long as the block body 100 can move vertically.

At least one elastic member may be coupled between the block body 100 and the auxiliary block body 101 to provide elasticity in the vertical movement direction. For example, the elastic member has an upper end coupled to the block body 100 by a fastening member, and the lower end may be coupled to the auxiliary block body 101 by a fastening member. Similarly, the elastic member has an upper end coupled to the auxiliary block body 101 by a fastening member, and the lower end may be coupled to the block body 100 by a fastening member. The elastic member may use a spring, but the present invention is not limited thereto, and may have a different shape as long as it can move in the vertical movement direction.

That is, the film-type pin board according to the technical details of the present invention can accurately move vertically while the block body 100 has elasticity by using a bearing and an elastic member. In addition, since the elastic member can be easily attached to and detached from the auxiliary block body 101 and the block body 100, an elastic member having an appropriate elastic modulus is coupled to the block body 100 and the auxiliary block body 101 as necessary. This makes it easy to adjust the ovdrdrive value during panel testing. Here, the overdrive value refers to the vertical displacement of the test film as it is vertically pressed when the test film is in contact with the panel. The overdrive value must be guaranteed to test the electrical signal without missing conduction for each electrode line. Can be.

The elastic unit 200 and the test unit 400 may be fixed to the block body 100, and the PC 300 may be installed in the auxiliary block body 101.

The block body 100 and the auxiliary block body 101 may be coupled to each other by positioning pins (not shown).

Here, the lower end of the block body 100 is formed inclined surface inclined downward toward the front side.

The elastic part 200 is installed at the lower end of the block body 100.

That is, the elastic part 200 is fixedly installed on the inclined surface. The fixing method may be fixed by a fixing pin (not shown). In addition, the elastic portion 200 by the fixing pin may be possible to change the position of the front and rear.

Accordingly, one end of the elastic portion 200 may be adjusted by the protruding length from the front end of the block body 100 to adjust the elastic force.

Although not shown in the drawings, when the fixing method of the elastic part 200 is coupled to the bottom inclined surface of the block body 100 in a sliding manner, in addition to the fixing method by the fixing pin, the elastic part 200 is a block body ( Position adjustment may be possible along the front and rear on the inclined surface of 100).

An example of the sliding coupling method may be implemented by rail coupling between both ends of an elastic part of the inclined surface of the block body.

In addition, after the position is adjusted, the position may be fixed by fixing the elastic part 200 to the inclined surface using a fixing screw. Here, the inclined surface of the block body 100 may be formed with screw holes to which the fixing screw can be coupled.

3 is a perspective view showing a coupling relationship between an elastic part and a test part according to the present invention.

Referring to FIG. 3, the elastic part 200 is formed of a leaf spring 210 having a predetermined thickness.

The leaf spring 210 may be formed of any one of spring steel, resin, plastic, and stainless steel.

Therefore, the elastic force can be variably set by variably determining the type of leaf spring 210.

8 is another cross-sectional view showing a probe block of the present invention.

8, the front end of the leaf spring 210 is disposed to protrude a predetermined length toward one end of the block body 100, that is, forward.

Here, the front end of the block body 100 is formed with a fitting groove 110 forming a steep slope than the slope formed on the bottom of the block body 100.

The fitting groove 110 is fitted with an elastic body 130 formed of a rubber such as urethane is fixed.

Although not shown in the figure, the elastic body 130 may be formed by forming a layer of elastic materials having different elasticity.

One end of the elastic body 130 protrudes toward the front of the block body 100 through the fitting groove 110, the upper end of the one end of the leaf spring 210 is in close contact.

Therefore, the leaf spring 210 can form an elastic force in double by its elasticity and the elastic body in contact with the upper surface.

In addition, when the elastic body 130 is formed of a multilayer elastic material, the elastic material itself may provide a function capable of absorbing multiple shocks.

The lower surface of the leaf spring 210 is provided with a soft test unit 400 according to the present invention.

The soft test unit 400 is composed of a film 430 in which contact lines L connecting one end and the other end are formed.

Here, referring to FIG. 7, the contact lines L may include first and second contact lines L1 and L2, and the distance between the first contact lines L1 may be the second contact lines L2. It is formed narrower than the interval.

In addition, in the present invention, the cutting line (C) is formed in the center of the film 430, by cutting a pair can be used as the test unit 400, respectively.

As described above, the test unit 400 configured as a pair is installed to form a gap on the lower surface of the leaf spring 210 as shown in FIG. 6. The test unit 400 according to the present invention may be a film manufactured by a chip on film (COF) method. That is, the test unit 400 is a film having a significantly smaller tolerance than the FPC film and having a narrow pitch. That is, in the case of a COF film, the driver IC is strictly mounted, but in the present invention, the test unit 400 is manufactured by the same manufacturing method as the COF film, but the driver IC is mounted. It has a structure in which only electrode lines are formed without.

In other words, the COF film is a standard width, such as 42mm width is determined to be produced only by the standard, the present invention is produced by cutting the film produced by the standard according to such a standard COF method, then cut (cutting) Two films are produced and used as probe units. In this case, even if the maximum width of the contact line of the panel under test is wider than the standard width of the COF film, the panel test can be performed by dropping the two cut films at regular intervals. have. At this time, the film produced by the COF method is easier to cope with the narrow pitch than the conventional FPC film, there is an advantage that the more accurate and less defective rate of the product.

Therefore, the present invention has the advantage that it is easy to cope with the test of the panel of various sizes by cutting the film produced by the COF method manufactured in the standard as described above and arranged at regular intervals and then using it as a test film.

Here, each test unit 400 is composed of a film 430 having a first folding part 410 at one end and a second folding part 420 at the other end.

4 and 8, the first folding part 410 is attached to the lower end of one end of the leaf spring 210 protruding forward of the block body 100 through a first insulating tape 451. Is fixed as possible. In this case, an adhesive such as a double-sided tape may be disposed in the folded inside of the first folding part 410 to more stably form the folding structure.

In addition, referring to FIG. 5, the second folding part 420 may be attached to the bottom surface of the PC 300 installed in the auxiliary block body 101 in a bent state and may be electrically energized.

The configuration of the first folding unit 410 will be described.

The first insulating tape 451 is attached to the lower surface of the leaf spring 210. The first insulating tape 451 may be a release paper.

One end of the film 430 is bent or folded in a hook shape, and a space is formed inside the film 430.

The end of the bent film 430 is attached to and fixed to the first insulating tape 451 attached to the bottom surface of one end of the leaf spring 210.

In addition, the first contact lines L1 protrude from the outer surface of the film 430 and are disposed to form a gap.

This is because the first contact lines are formed in a protruding state at intervals

Accordingly, the impact generated when the first folding part 410 is in contact with a test terminal formed in a panel (not shown) may be the elasticity of the first folding part 410 itself, the leaf spring 210, and the elastic body ( 130 can be absorbed by the multiple elastics formed by. That is, a stable electrical test environment is achieved.

The second folding part 420 is bent or folded to have a longer shape than the first folding part 410.

A second insulating tape 452 is formed inside of the second insulating tape 452, and second contact lines L2 are formed on the upper surface of the second folding part 420, and are electrically connected to the PC 300.

Each test unit 400 configured as described above is bent to be attached to the front end of the leaf spring 210 in a state that is attached to the lower surface of the leaf spring 210, the other end is extended to electrically to the PC 300 Connected.

1 and 8, at least one extension piece 211 is formed at the front end of the leaf spring 210.

The width of the extension piece 211 may be determined by the width of one end of the film 430 of the test unit 400 to be attached.

The extension piece 211 is formed to protrude from the front end of the leaf spring 210, it may serve to form additional elasticity itself.

On the other hand, the elastic member 440 formed of a rubber such as urethane may be fitted inside the first folding portion 410 mentioned above.

Here, the inner side of the elastic member 440 and the first folding portion 410 may be fixed through a separate adhesive.

The elastic member 440 serves to form additional elasticity when the first folding portion 410 contacts the panel for a panel test, and returns the first folding portion 410 to its original shape after the test. By doing so, the shape deformation of the first folding part 410 can be prevented beforehand.

In addition, although not shown in the drawing, the elastic member 440 may be disposed to be in close contact with the inner surface of the first folding part 410.

Therefore, the elastic member 440 may maintain the bending or folded shape of the first folding part 410 constantly during the repeated contact test.

In the test unit 400 configured as described above, the distance between the contact lines L1 and L2 may be different from each other, and the gap may be corrected by applying an external force to the film 30. Can be.

Through the above configuration, the embodiment according to the present invention by forming the elasticity of the multi-stage and the terminals formed on the panel, it is possible to stably perform the electrical test for the panel.

In addition, embodiments according to the present invention can easily confirm alignment with the naked eye using a film having protruding contact lines.

In addition, the embodiment according to the present invention can implement a Chip On Film (COF) using a film having a different distance between both ends without using a flexible circuit board.

The embodiment of the present invention has been described above with reference to the drawings. However, this is only for the purpose of describing the present invention and is not described to limit or limit the contents of the present invention. Therefore, those skilled in the art can make various modifications and equivalents therefrom. It will be possible to implement one other embodiment, therefore, the true technical protection scope of the invention should be defined by the technical details of the appended claims.

100: block body 110: fitting groove
130: elastic body 200: elastic part
210: leaf spring 211: extension
300: PC 400: test unit
410: first folding part 420: second folding part
430; Film 440: Elastic Member
451: first insulating tape 452: second insulating tape
L1: first contact line L2: second contact line

Claims (11)

Block body;
An elastic part installed to be inclined downward at the lower end of the block body and having one end protruding to one end of the block body;
A PCB installed at a rear end of the block body; And
One end is installed to be bent at one end of the elastic portion and the elastic contact in one end of the elastic part in multiple stages, the other end is bent at a predetermined position of the lower surface of the PCB and contacted, COF (chip having a plurality of contact lines at a predetermined interval a soft test part manufactured by an on film method,
The soft test unit includes a first test unit and a second test unit formed by cutting a film formed according to a standard specification of a chip on film (COF) method,
The elastic portion
Film type pin board characterized by being leaf spring. The method of claim 1,
The lower surface of the block body is a film-type pin board, characterized in that the inclined surface formed to be inclined downward. The method of claim 2,
One end of the block body is formed with a fitting groove forming a more steep inclination than the inclination of the inclined surface,
Film-type pin board, characterized in that the fitting groove is fitted with an elastic body elastically supporting the upper surface of one end of the elastic portion. The method of claim 3, wherein
One end of the elastic portion,
The film type pin board, characterized in that in contact with the lower surface of the elastic body. delete The method of claim 1,
The test section,
Including a film in which the plurality of contact lines are formed,
A first folding part is formed at one end of the film, and a second folding part is formed at the other end of the film,
The first folding part is fixed to be adhered to the lower end of one end of the leaf spring protruding forward of the block body through an insulating tape,
The second folding part, the film type pin board, characterized in that the electrically conductive is attached to the lower surface of the PCB. The method according to claim 6,
The contact lines,
The film type pin board, characterized in that the protrusion formed at intervals on the outer surface portion of the first folding portion. The method according to claim 6,
At one end of the leaf spring,
Film-type pin board, characterized in that the extension is further formed to be attached to the first folding portion. The method according to claim 6,
On the inner side of the first folding part,
Film type pin board, characterized in that the elastic member is further inserted. The method according to claim 6,
The leaf spring is,
A film type pin board formed from any one of spring steel, resin, plastic, and stainless steel. The method according to claim 6,
The spacing of the contact lines,
The gaps at one end and the other end of the film are formed different from each other,
The film type pin board, characterized in that the gap is corrected by applying an external force to the film.

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