KR100586007B1 - Probe Unit for inspection of Flat Display Panels - Google Patents

Abstract

The present invention relates to a probe unit used to inspect a flat panel display panel such as a TFT-LCD panel. According to the present invention, a probe block (3) fixed to a manipulator (1) of a probe device and a plurality of probe members (5) bonded to a bottom surface of the probe block (3) and in contact with a pattern of a subject under test (6) The probe sheet 10 fixed on the substrate, the red signal lines (R1 ... Rn), the green signal lines (G1 ... Gn), and the blue signal lines (B1 ... Bn) are alternately repeated, and the film (6) at regular intervals. Each probe member 5 of the probe sheet 10 is fixed on the probe sheet 10 and the tip of each of the plurality of signal lines R1 ... Rn (G1 ... Gn) (B1 ... Bn) corresponds to each other. ) And a plurality of red signal lines R1 ... Rn of the FPC connection sheet 20 are connected to each other by red signal connection lines 22a and 22b disposed across. The plurality of green signal lines G1 ... Gn are connected and shorted to each other by the green signal connecting lines 24a and 24b crossing each other, and the plurality of blue signal lines B1 ... Bn are blue No. shorting and are connected to one another by connection lines (26a, 26b), each of the signal connecting line (22a, 22b) (24a, 24b) (26a, 26b) are connected directly to the signal generator 30.

Flat Panel Display, Pattern Inspection, Shorting Bar, Visual Inspection, Signal Connection Line

Description

Probe Unit for inspection of Flat Display Panels

1 is a schematic configuration diagram of a probe unit according to the present invention;

2 is a bottom view of the probe unit of the present invention;

3 is a perspective view of a probe sheet constituting the probe unit of the present invention;

4 is an enlarged detail "A" part of FIG.

5 is an enlarged detail "B" of FIG.

※ Explanation of code about main part of drawing ※

1: Manipulator 3: Probe Block

P: Subject 5: Probe member

6: film 7: wiring

10: probe sheet 20: FPC connection sheet

R1, ... Rn: Red signal line

G1, .., Gn: Green signal line B1, .., Bn: Blue signal line

22a, 22b: red signal connection line 24a, 24b: green signal connection line

26a, 26b: Blue signal connection line W1, .., Wn: Wire

28: power input line

The present invention relates to a probe unit for inspecting a flat panel display panel, and more particularly, to a probe unit used for inspecting a pattern of a TFT-LCD.

As a method of inspecting the state of the pixels of the LCD panel before installing the driver IC in a flat panel TFT-LCD panel (hereinafter referred to as 'LCD'), there are a visual test method using a shorting bar and a gross test method.

The visual test method using the shorting bar has a disadvantage in that the shorting bar itself has a low reliability and a high probability of occurrence of line defects and a low uniformity due to an increase in resistance of the LCD panel wiring. On the other hand, the gross test method can implement a desired pattern by one-to-one contact with the pad of the LCD panel in order to apply the same signal as the signal used in the module, but secures the same visibility as the module by applying individual signals by the full contact method. However, since the contact state is unstable, it is unclear whether the line defect and the probing omission is unclear, which leads to a disadvantage of low inspection reliability.

Accordingly, the present invention is designed to solve the disadvantages of the conventional probe panel for inspection of the conventional LCD panel, a probe unit that can increase the test reliability by connecting the signal input line short-circuit directly to the signal generator without a drive IC. The purpose is to provide.

The present invention for achieving the above object is a probe block fixed to the manipulator of the probe device, a probe sheet bonded to the bottom surface of the probe block and a plurality of probe members fixed on the film contacting the pattern of the test object, and the red signal line And repeating the green signal lines and the blue signal lines alternately to be fixed on the film at regular intervals, and the flat panel display including an FPC connection sheet in which the ends of the plurality of signal lines are connected to the respective probe members of the probe sheet. In the probe unit for panel inspection,

The signal line of the connection sheet has a structure in which red signal lines, green signal lines, and blue signal lines are alternately arranged alternately, and the red signal lines, green signal lines, and blue signal lines are connected to short-circuit signal lines with the same colors, respectively, and are directly connected to the signal generator. It is characterized by.

According to the present invention configured as described above, the short circuit is provided by the signal connection lines provided therein, so that a shorting bar is provided on the inspected object and the conventional test method that has been inspected through the shorting bar solves a problem. Staining does not occur even if the wiring of the body increases.

In addition, the probe unit of the present invention has an advantage that the input voltage can be freely adjusted because the probe unit is directly connected to the signal generator by connecting the signal lines to the signal connection line without using the driving IC.

The probe unit of the present invention can be applied to an unmanned automatic visual inspection machine can increase the reliability of the inspection and improve the inspection efficiency.

Hereinafter, embodiments according to the present invention will be described in detail according to the accompanying drawings.

1 is a schematic configuration diagram of a probe unit according to the present invention, Figure 2 is a bottom view of the probe unit according to the present invention. 1 and 2, the probe unit according to the present invention is bonded to the probe block (3) fixed to the manipulator (1) of the probe device, the bottom surface of the probe block (3) flat panel display panel (P) (hereinafter, referred to as 'inspection') a plurality of probe members (5) in contact with the pattern on the film 6 and the red signal line (R1 ... Rn), green signal lines (G1 ... Gn), and blue signal lines (B1 ... Bn) are alternately repeatedly fixed at regular intervals, and the plurality of signal lines (R1-n, G1-n, B1-n) It is composed of FPC connection sheet 20 is connected to each of the probe member 5 of the probe sheet 10 corresponding to the front end of these.

As illustrated in FIG. 3, the probe sheet 10 includes a plurality of probe members 5 disposed at the same interval as the wiring of the test object along the width direction, and connected to each probe member 5. The wiring 7 which transmits the signal probed in (5) has the structure fixed to the insulating film 6 like polyamide.

As shown in FIGS. 4 and 5, in the FPC connection sheet 20, the plurality of red signal lines R1... Rn are connected to each other and shorted by the red signal connecting lines 22a and 22b disposed across them. The plurality of green signal lines G1 ... Gn are shorted by being connected to each other by the crossing green signal connection lines 24a and 24b, and the plurality of blue signal lines B1 ... Bn are blue signal connection lines 26a and 26b. Are connected to each other and shorted.

The red signal connecting lines 22a and 22b, the green signal connecting lines 24a and 24b, and the blue signal connecting lines 26a and 26b are extended to be connected to the signal generator 30 of the probe device. The red signal connecting lines 22a and 22b include a first red signal connecting line 22a in which odd number of red signal lines R1, R3, ..., R2n-1 are bundled together, and an even number of red signal lines R2, R4,. And second red signal connecting lines 22b connecting R2n at a time, and the green signal connecting lines 24a and 24b connect odd-numbered green signal lines G1, G3, ..., G2n-1. A first green signal connecting line 24a bundled together and a second green signal connecting line 24b connecting the even-numbered green signal lines G2, G4, ..., G2n at once, and the blue signal connecting line 26a. (26b) shows the first blue signal connecting line (26a) which bundles the odd number of blue signal lines (B1, B3, ..., B2n-1) and the even number of green signal lines (B2, B4, ..., B2n). It consists of the 2nd blue signal connection line 26b connected at the same time.

The ends of the signal connection lines 22a, 22b, 24a, 24b, 26a, and 26b are extended to be repeatedly arranged in the order of red, green, and blue at the ends of the FPC connection sheet 20, and fixed. The signal connection lines 22a, 22b, 24a, 24b, 26a, and 26b are connected to the signal generator 30 through wires W1, ..., Wn, respectively, between the signal generator 30 and the wiring of the object under test. The red, green, and blue test signals are transmitted to each other.

Reference numeral 28, which has not been described, is a power input line.

 The probe unit having the configuration as described above has a function of shorting by the signal connection lines provided therein, thus eliminating the problem of the conventional inspection method provided with the shorting bar on the inspected object and inspected through the shorting bar. Even if the wiring is increased, staining does not occur.

In addition, the probe unit of the present invention has an advantage that the input voltage can be freely adjusted because the probe unit is directly connected to the signal generator by connecting the signal lines to the signal connection line without using the driving IC.

The probe unit of the present invention can be applied to an unmanned automatic visual inspection machine can increase the reliability of the inspection and improve the inspection efficiency.

Claims (3)

delete The probe block 3 fixed to the manipulator 1 of the probe device and the plurality of probe members 5 bonded to the bottom surface of the probe block 3 and in contact with the pattern of the object under test are fixed on the film 6. The probe sheet 10, the red signal lines R1 ... Rn, the green signal lines G1 ... Gn, and the blue signal lines B1 ... Bn are alternately repeated on the film 6 at regular intervals. A plurality of signal lines R1 ... Rn (G1 ... Gn) (B1 ... Bn) are fixed to each probe member 5 of the corresponding probe sheet 10. In the probe unit for inspecting a flat panel display panel including the connected FPC connection sheet 20,  The plurality of red signal lines R1 ... Rn of the FPC connection sheet 20 are shorted by being connected to each other by red signal connection lines 22a and 22b disposed across the plurality of green signal lines G1 ... Gn. ) Are shorted by being connected to each other by the green signal connecting lines 24a and 24b that cross each other, and the plurality of blue signal lines B1 ... Bn are shorted by being connected to each other by the blue signal connecting lines 26a and 26b. The connecting lines 22a and 22b, 24a and 24b and 26a and 26b are directly connected to the signal generator 30, and the red signal connecting lines 22a and 22b are odd-numbered red signal lines R1, R3, ..., A first red signal connecting line 22a which bundles R2n-1) together and a second red signal connecting line 22b which connects and connects even-numbered red signal lines R2, R4, ..., R2n at once. The green signal connection lines 24a and 24b are the first green signal connection lines 24a which bundle the odd number of green signal lines G1, G3, ..., G2n-1, and the even number green signal lines G2, G4,. And the second green signal connecting line 24b connecting G2n at a time, and the blue signal connecting lines 26a and 26b connect the odd number of blue signal lines B1, B3, ..., B2n-1. A flat panel display panel comprising a first blue signal connecting line 26a bundled together and a second blue signal connecting line 26b connecting and connecting even-numbered green signal lines B2, B4, ..., B2n at one time. Probe unit for inspection. The tip of the signal connection lines (22a, 22b) (24a, 24b) (26a, 26b) is extended to be repeatedly arranged in the order of red, green, blue at the tip of the FPC connection sheet (20) It is fixed to the film, and each of these signal connection lines 22a, 22b, 24a, 24b, 26a, 26b is connected to the signal generator 30 via wires W1, ..., Wn, respectively. Probe unit for inspecting display panels.

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