JP2006317332A - Lighting inspection device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To heighten efficiency of a type exchange work performed corresponding to the kind of a liquid crystal panel 14. <P>SOLUTION: This lighting inspection device is equipped with a panel conveyance part 12 for conveying the liquid crystal panel 14 based on the shape center of the liquid crystal panel 14, and an inspection part 13 for inspecting the liquid crystal panel 14 based on the display center of the liquid crystal panel 14. The device is also equipped with a correction means for correcting deviation between the shape center on the panel conveyance part 12 and the display center on the inspection part 13. The correction means is equipped with a corrected value storage means 54 for storing the corrected value determined by correcting the deviation between the shape center on the panel conveyance part 12 and the display center on the inspection part 13, a discrimination mark input means for inputting the discrimination mark, and a correlation means for correlating the discrimination mark inputted by the discrimination mark input means with the corrected value stored in the corrected value storage means, and storing them in the corrected value storage means. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a lighting inspection apparatus that performs a lighting inspection by bringing a probe needle into contact with a terminal of an inspection target plate.

  2. Description of the Related Art A lighting inspection apparatus that performs a lighting inspection by bringing a probe needle into contact with a terminal of a panel such as a liquid crystal substrate is generally known. Such a lighting inspection apparatus mainly includes a panel transport unit that transports a panel such as a liquid crystal substrate, and an inspection unit that performs a lighting test by bringing a probe needle into contact with a terminal of the panel.

  And the panel conveyed from the outside is received by the said panel conveyance part, the panel is positioned, and it conveys to the said test | inspection part. In the inspection unit, the panel is received from the panel transport unit, and the panel is positioned and fixed. Next, a lighting test is performed by bringing the probe needle into contact with the terminal of the panel.

  On the other hand, since there are types of panels, product type replacement work is performed according to the types. Specifically, the lighting inspection is performed by replacing the inspection target jig (work table, probe unit) of the inspection unit.

  By the way, in the above-mentioned conventional lighting inspection apparatus, the panel is positioned along with the product replacement work. However, the setting of the center position when positioning the panel is different between the panel transport unit and the inspection unit. ing. Specifically, as shown in FIG. 2, the panel conveyance unit performs positioning based on the outer shape center 2 of the panel 1. In the inspection unit, positioning is performed with reference to the display center 5 which is the center position of the display unit 4 excluding the panel terminal unit 3 with which the probe needle contacts.

  As described above, even when the outer center 2 and the display center 5 are deviated from each other, there is no problem if the size of the terminal portion (terminal length direction) is small. Some are big. In this case, there is a problem that a deviation amount between the outer shape center 2 and the display center 5 is inevitably increased.

  In addition, when the apparatus is increased in size, the work table (see 45 in FIG. 13) that supports the panel 1 is also increased in size, so that the dimensional tolerance increases. On both the upper and lower sides of the work table, a transfer arm (see 20 in FIGS. 3 and 13) extending from the panel transfer unit is located, and the transfer arm claw (see 23 in FIG. 12) is used for transferring the panel 1. It fits into a notch (see 65 in FIG. 12) of the work table. The panel 1 is moved to the work table while being supported by being sandwiched from above and below by the respective transport arm claws of the upper and lower transport arms. Then, the work table is raised and the transfer arm claw is fitted into the notch portion of the work table, and the panel 1 is placed on the positioning pin (see 63 in FIG. 12).

  At this time, if the dimensional tolerance is increased and the parallelism of the transport arm is reduced, the position of the transport arm claw is shifted.

  Further, along with the increase in the size of the apparatus, mechanical errors of the work table, individual differences in product replacement parts, variations in apparatus accuracy, and the like also occur.

  If the position of the transfer arm claw is shifted due to these causes, the transfer arm claw may come into contact with the notch portion of the work table. Furthermore, there is a possibility that the panel 1 rides on a pin that supports the panel 1. For this reason, it is necessary to correct the dimension values A and B from the display center 5 of the work table during the product exchange operation.

  However, it takes time to correct the dimension values A and B. There is a problem that it may take several hours to complete stable operation after completing the product exchange.

  The present invention has been made in view of such problems, and an object of the present invention is to provide a lighting inspection apparatus that improves workability at the time of exchanging product types due to a dimensional shift due to an increase in the size of the apparatus.

  The lighting inspection apparatus according to the present invention includes a transport unit that transports the inspection target plate with reference to the outer shape center of the inspection target plate, and an inspection unit that inspects the inspection target plate with reference to the display center of the inspection target plate. The lighting inspection apparatus includes a correction unit that corrects a deviation between the center of the outer shape of the transport unit and the display center of the inspection unit.

  The correction means includes a correction value storage means for storing a correction value obtained by correcting a deviation between the outer shape center in the transport section and the display center in the inspection section, an identification symbol input means for inputting an identification symbol, and the identification It is desirable to provide association means for associating the identification symbol input by the symbol input means with the correction value stored by the correction value storage means and storing it in the correction value storage means. The deviation between the center of the outer shape and the center of display is performed by adjusting the alignment stage. Further, the correction value storage means preferably stores a correction value obtained by correcting an amount by which the transport arm is shifted downward. An ID number or a bar code is used as the identification symbol input by the identification symbol input means.

  As described above, according to the present invention, the following effects can be obtained.

  If the deviation between the center of the outer shape of the transport unit and the display center of the inspection unit and the shift of the transport arm is corrected once with the product exchange operation, the correction means stores the correction value together with the identification symbol. . Then, from the second time, by inputting an identification symbol, the correction means of the control unit automatically corrects the deviation between the outline center and the display center and the deviation of the transfer arm. As a result, it is possible to improve the efficiency of the product exchange work performed according to the type of the inspection object plate.

  Hereinafter, a lighting inspection apparatus according to an embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a schematic configuration diagram showing a lighting inspection apparatus according to an embodiment of the present invention, FIG. 3 is a front view showing a panel transport section of the lighting inspection apparatus according to the embodiment of the present invention, and FIG. 4 is an embodiment of the present invention. The side view which shows the panel conveyance part of the lighting inspection apparatus which concerns, FIG. 5 is a front view which shows the state which extended the conveyance arm of the panel conveyance part of the lighting inspection apparatus which concerns on embodiment of this invention, FIG. FIG. 7 is a cross-sectional view of a main part showing a part of the upper transfer arm of the lighting inspection apparatus according to the embodiment, and FIG. 7 is a main part cross-sectional view showing a part of the lower transfer arm of the lighting inspection apparatus according to the embodiment of the present invention. 8 is a schematic front view showing an inspection part of the lighting inspection apparatus according to the embodiment of the present invention, FIG. 9 is a schematic side sectional view showing an inspection part of the lighting inspection apparatus according to the embodiment of the present invention, and FIG. The front view which shows the work table of the lighting inspection apparatus which concerns on embodiment, FIG. Is a functional block diagram showing a control system of a lighting inspection apparatus according to an embodiment of the present invention, FIG. 12 is a front view showing a delivery state of a liquid crystal panel in the lighting inspection apparatus according to the embodiment of the present invention, and FIG. FIG. 14 is a plan view showing a delivery state of the liquid crystal panel in the lighting inspection apparatus according to the embodiment, FIG. 14 is a flowchart showing initial setting at the time of initial mounting at the time of product replacement in the lighting inspection apparatus according to the embodiment of the present invention, and FIG. 15 is a flowchart showing an initial setting at the time of the second and subsequent mounting at the time of product type replacement in the lighting inspection apparatus according to the embodiment of the present invention.

  The lighting inspection apparatus according to the present embodiment is an apparatus that supports inspection of a plurality of types of inspection target plates. For this reason, in the lighting inspection apparatus, the inspection object jig (work table, probe unit) is replaced according to the type of the inspection object plate such as a liquid crystal panel. The lighting inspection apparatus according to the present embodiment can easily replace the inspection object jig in a short time. This point will be described in detail below.

  As shown in FIG. 1, the lighting inspection device 11 mainly includes a panel transport unit 12 and an inspection unit 13.

  The panel transport unit 12 is a device for receiving the liquid crystal panel 14 from the outside and transporting the liquid crystal panel 14 to the inspection unit 13 and discharging the liquid crystal panel 14 after the inspection to the outside. The panel conveyance part 12 is mainly comprised from the conveyance arm 15 and the drive mechanism 16, as shown to FIG.

  The transport arm 15 is a part that supports the liquid crystal panel 14. The transport arm 15 includes an arm part 20, a clamp arm part 21, a rail part 22, and a panel clamp 23.

  The arm unit 20 is a member that is disposed at the upper and lower positions of the supported liquid crystal panel 14 and supports the liquid crystal panel 14. The arm unit 20 is supported by the drive mechanism 16 so as to be movable up and down, and is brought close to and away from the upper and lower ends of the liquid crystal panel 14. The clamp arm portion 21 is a member for supporting the liquid crystal panel 14. The clamp arm portion 21 includes an upper and lower clamp arm portion 21A and a left and right clamp arm portion 21B, and supports the liquid crystal panel 14 from the upper, lower, left and right sides. The vertical clamp arm portion 21A grips the liquid crystal panel 14 from above and below by the vertical movement of the arm portion 20. The lower vertical clamp arm portion 21 </ b> A is fixed to the arm portion 20. The upper vertical clamp arm portion 21A elastically moves a rail 24A extending vertically, a guide 24B slidably supported on the rail 24A, and a panel clamp 23 supported by a guide 24B sliding on the rail 24A. The spring 24C is supported, and a stopper 24D that regulates the sliding amount of the guide 24B.

  The left and right clamp arm portions 21 </ b> B move to the left and right by the function of a rail portion 22 (described later) provided on the arm portion 20 to grip the liquid crystal panel 14 from the left and right. The rail portion 22 is a member for supporting the left and right clamp arm portions 21B of the clamp arm portion 21 so as to be movable left and right. The left and right clamp arm portion 21B is provided with a guide 21C, and the guide 21C is slidably supported by the rail portion 22.

  The panel clamp 23 is a member for directly contacting the end of the liquid crystal panel 14. The panel clamp 23 is made of an elastic synthetic resin or the like, and elastically supports the peripheral edge of the liquid crystal panel 14.

  When the liquid crystal panel 14 is supported by each clamp arm portion 21, the center of the outer shape (outer shape center 2 in FIG. 2) is used as a reference. The liquid crystal panel 14 is supported by each clamp arm portion 21 with reference to the center of the outer shape, and is conveyed to the inspection portion 13.

  The drive mechanism 16 is a device for supporting the liquid crystal panel 14 by the transport arm 15 and reciprocating the liquid crystal panel 14 between the panel transport unit 12 and the inspection unit 13. The drive mechanism 16 is mainly composed of an X direction moving mechanism section 25 and a Y direction moving mechanism section 26.

  The X-direction moving mechanism unit 25 is a mechanism for reciprocating the transport arm 15 between the panel transport unit 12 and the inspection unit 13. The X-direction moving mechanism unit 25 mainly includes a rail unit 28, an X-axis drive motor 29, a ball screw 30, and a nut 31.

  The rail portion 28 is a member that supports the reciprocation of the transfer arm 15 between the panel transfer unit 12 and the inspection unit 13. A slide plate 33, which will be described later, is supported on the rail portion 28 so as to be able to reciprocate. The X-axis drive motor 29 is a motor that is connected to the ball screw 30 and rotationally drives the ball screw 30. The ball screw 30 is a member for reciprocating the slide plate 33 directly. The ball screw 30 is supported by the bearing 30 </ b> A and is disposed in the lateral direction that is the reciprocating direction of the transport arm 15. The nut 31 is a member for reciprocating with the rotation of the ball screw 30. The nut 31 is screwed into the ball screw 30 and reciprocates when the ball screw 30 is rotationally driven by the X-axis drive motor 29. The nut 31 is fixed to the slide plate 33, and reciprocates the slide plate 33 by the rotation of the ball screw 30.

  The Y-direction moving mechanism unit 26 is a mechanism for supporting the arm unit 20 of the transport arm 15 so as to be movable up and down. The Y-direction moving mechanism portion 26 mainly includes a slide plate 33, a rail portion 34, a Y-axis drive motor 35, a ball screw 36, and a nut 37.

  The slide plate 33 is a member for supporting the transport arm 15 to reciprocate. On the back surface of the slide plate 33, guides 39 are respectively provided above and below the guide plate 39, and the guides 39 are attached to the rail portion 28 of the X-direction moving mechanism unit 25. As a result, the slide plate 33 is supported by the rail portion 28 so as to be reciprocally movable in the X-axis direction.

  The rail part 34 is a rail for guiding the vertical movement of the arm part 20 of the transport arm 15. The rail portion 34 is attached to the surface of the slide plate 33. A guide 40 is attached to the rail portion 34. Two guides 40 are provided on the rail portion 34 to support the upper and lower arm portions 20 of the transfer arm 15. The guide 40 is integrally provided with a nut 37.

  The Y-axis drive motor 35 is a motor for rotating the ball screw 36. The Y-axis drive motor 35 rotates the ball screw 36 when the upper and lower arm portions 20 of the transport arm 15 are brought close to each other or separated from each other. The ball screw 36 is a member for directly moving the nut 37 close to and away from the top and bottom. In the ball screw 36, the screw groove spiral direction is reversed between the upper half and the lower half, and the ball screw 36 is connected to one by a coupling 41. An upper end portion of the ball screw 36 is rotatably supported by a bearing 42. Then, nuts 37 are respectively provided above and below the ball screw 36. When the ball screw 36 is rotated in one direction, the nuts 37 come close to each other, and when rotated in the opposite direction, the nuts 37 are separated from each other. . The nut 37 is provided integrally with the guide 40, and is provided integrally with the arm unit 20 via the guide 40. When the nut 37 is moved closer to and away from the ball screw 36, the guide 40 is moved closer to and away directly. Then, the upper and lower arm portions 20 of the transfer arm 15 are indirectly moved closer to and away from each other. And by rotation of the ball screw 36, the nut 37 moves up and down and the arm part 20 moves up and down.

  The inspection unit 13 is a device for supporting the liquid crystal panel 14 and performing a lighting test. As shown in FIGS. 1 and 8 to 11, the inspection unit 13 mainly includes an XYZθ stage 43, a backlight 44, a work table 45, and a prober 46.

  The XYZθ stage 43 is an alignment stage that supports the backlight 44 and the work table 45 on the front surface thereof and aligns the liquid crystal panel 14 attached to the work table 45. This XYZθ stage 43 adjusts the work table 45 that supports the liquid crystal panel 14 in the XYZ-axis direction and the θ-rotation direction, and moves the work table 45 in the Z-axis direction when the liquid crystal panel 14 is delivered. It is a device for. In the XYZθ stage 43, drive motors 48 and 49 for moving the work table 45 in the XY axis direction, a drive motor 50 for rotating the work table 45 in the θ rotation direction, and a drive for moving the work table 45 in the Z axis direction. A motor 51 is provided. Each drive motor 48-51 is connected to the control means 52, respectively. Although four drive motors are provided in each direction here, the number of drive motors is reduced when a mechanism that can handle movement in two or more directions is provided by one drive motor.

  Further, an input unit 53 and a correction value storage unit 54 are connected to the control unit 52. The input means 53 is a means for inputting a correction value (offset value) or inputting an identification symbol. The input means 53 is composed of a touch panel or the like. An operator inputs and corrects a correction value corresponding to the shift amount from the input means 53 in order to correct the shift between the center of the outer shape of the panel transport unit 12 and the display center of the inspection unit 13. Since the deviation amount between the center of the outer shape and the display center is known in advance, correction values in the X-axis direction and the Y-axis direction corresponding to the deviation amount are input from the input means 53. Further, an identification symbol associated with the correction value after the correction is completed is input. Various identification symbols can be used as the identification symbols input by the input means 53. For example, an ID number or a barcode. For the ID number, symbols such as alphabets and numbers on the touch panel can be used. In the case of a bar code, an input signal from the bar code reader becomes an identification symbol as it is.

  The correction value storage means 54 is a means for storing the correction value and the identification symbol in association with each other. The correction value storage means 54 is constituted by a memory or the like. The correction value storage means 54 temporarily stores correction values in the X-axis direction and Y-axis direction input from the input means 53 during the correction work, and when an identification symbol associated with the correction value is input. The data are stored in association with each other by an association means described later.

  Further, the correction value storage means 54 stores the correction value of the downward shift of the arm portion 20 of the transport arm 15 and the identification symbol in association with each other. The arm portion 20 may be displaced downward due to the weight of the enlarged liquid crystal panel 14, the mechanical error of the enlarged device, the individual difference of product replacement parts, the variation of the device accuracy, and the like. When the arm portion 20 is shifted downward, the panel clamp 23 of the clamp arm portion 21 comes into contact with the notch 65 of the panel receiver 62, or the liquid crystal panel 14 comes into contact with the positioning pin 63, so that the liquid crystal panel 14 is delivered. It may not be possible. For this reason, the amount by which the arm portion 20 is shifted downward is corrected. In this case, the transfer arm 15 is moved to a position directly above the work table 45 of the panel transfer unit 12, whether the panel clamp 23 and the notch 65 are aligned, and whether the liquid crystal panel 14 is not in contact with the positioning pin 63. The operator adjusts while visually checking. Specifically, the rotation of the Y-axis drive motor 35 of the Y-direction moving mechanism unit 26 is controlled to adjust the upper and lower arm units 20 to be close to and away from each other. When the arm portions 20 are brought close to each other, the panel clamp 23 of the lower upper and lower clamp arm portion 21A comes into contact with the lower end of the liquid crystal panel 14 and pushes up the liquid crystal panel 14. In contrast, in the upper upper and lower clamp arm portion 21A, the upper and lower clamp arm portion 21A itself moves downward, but the panel clamp 23 is elastically supported by the spring 24C and is pushed back. Thereby, the height of the lower vertical clamp arm portion 21A can be adjusted.

  This rotation control of the Y-axis drive motor 35 is performed several times (possibly once) from the input means 53 during the correction operation. The correction value that is the rotation control amount of the Y-axis drive motor 35 at this time is overwritten each time it is input, and the correction value after the final correction is temporarily stored, and the correction value When the identification symbol associated with is input, it is stored in association with each other by the association means described later. Thereafter, by inputting an identification symbol, the corresponding correction value is read out, and the work table 45 is aligned based on the correction value.

  The association means is means for associating the identification symbol input by the input means 53 and the correction value stored by the correction value storage means 54 and storing them in the correction value storage means 54. This association unit is incorporated as a function of the control unit 52.

  The control means 52 is an apparatus for controlling the drive motors 48 to 51 together with the entire lighting inspection apparatus 11 to perform alignment of the work table 45 and the like. The control means 52 stores a program for controlling the entire lighting inspection apparatus including the XYZθ stage 43. Furthermore, the control functions shown in the flowcharts of FIGS. 14 and 15 are also stored. Specific functions of the control means 52 will be described later.

  The input means 53, the correction value storage means 54, and the associating means constitute correction means for correcting the deviation between the outer shape center and the display center and the downward movement of the arm unit 20. Further, the correction unit and the control unit 52 constitute a control unit that controls the entire work table 45 and the lighting inspection apparatus 11.

  The backlight 44 is a member for illuminating the liquid crystal panel 14 supported by the work table 45 from the back side. The backlight 44 includes a housing 56 and a lamp 57 housed in the housing 56.

  The work table 45 is a member for supporting the liquid crystal panel 14 which is an inspection object plate. The diffusion plate 2B is attached to the opening 45A of the work table 45, and the work table base 61 is attached to the outside thereof. The work table base 61 is provided with a panel receiver 62 for receiving the liquid crystal panel 14, two positioning pins 63 provided on the lower side and one of the left and right sides, positioning pins 63 for positioning and supporting the liquid crystal panel 14, and upper and left and right sides. The pusher 64 is provided on the other side and presses the liquid crystal panel 14 against the positioning pins 63, and the notch 65 into which the panel clamp 23 of the clamp arm portion 21 is fitted when the liquid crystal panel 14 is delivered.

  The prober 46 is an apparatus for inspecting the liquid crystal panel 14 in contact with the terminals of the liquid crystal panel 14. The prober 46 includes a probe base 67, a probe block 68, a camera 69, and a probe stage 70.

  The probe base 67 is a member for supporting the probe block 68 and the camera 69. The probe base 67 is fixed to a frame (not shown) through a probe stage 70 in a state desired by the liquid crystal panel 14 placed on the work table 45. The probe block 68 is fixed to the probe base 67 in a state where the probe needle 71 at the tip thereof is desired by the liquid crystal panel 14. The camera 69 is a camera for aligning the liquid crystal panel 14 while looking at marks provided on the liquid crystal panel 14. The probe stage 70 supports the probe base 67 while being fixed to the frame.

[Operation]
The lighting inspection apparatus configured as described above operates as follows.

  The overall operation of the lighting inspection device 11 is the same as that of the prior art. More specifically, the liquid crystal panel 14 from the outside is received by the panel transport unit 12, and the liquid crystal panel 14 is supported by the center of the outer shape and transported to the inspection unit 13. In the inspection unit 13, the liquid crystal panel 14 is received and supported by the XYZθ stage 43 in which the deviation between the outer shape center and the display center is corrected, and the liquid crystal panel 14 is inspected. After completion of the inspection, the liquid crystal panel 14 of the inspection unit 13 is transferred to the panel transport unit 12 again, and the panel transport unit 12 transports the liquid crystal panel 14 to the outside.

  Delivery between the panel transport unit 12 and the inspection unit 13 is performed as shown in FIGS. First, when passing from the panel transport unit 12 to the inspection unit 13, the liquid crystal panel 14 is supported by the panel clamp 23 of the clamp arm unit 21 of the panel transport unit 12 and moved to a predetermined position on the inspection unit 13 side. At this time, the work table 45 is pulled in the Z direction by the XYZθ stage 43 (the state of the solid line in FIG. 13). Next, the work table 45 is pushed out by the XYZθ stage 43 and moved to the state of the two-dot difference line in FIG. As a result, the panel clamp 23 is fitted into the notch 65, and the liquid crystal panel 14 is placed on the positioning pin 63 and pressed and fixed by the pusher 64. afterwards. The panel clamp 23 of the clamp arm portion 21 is separated from the liquid crystal panel 14 to be in a standby state.

  Next, when the liquid crystal panel 14 is transferred from the inspection unit 13 to the panel transport unit 12 after the inspection is completed, the clamp arm portion 21 of the panel transport unit 12 is fitted into the notch 65 of the panel receiver 62 to grip the liquid crystal panel 14. . Next, the work table 45 is pulled in the Z direction by the XYZθ stage 43 (solid line state in FIG. 13). Next, the liquid crystal panel 14 is transported to the panel transport unit 12 side and unloaded outside.

  When another liquid crystal panel 14 having different dimensions is to be inspected, a product type replacement operation is performed. In the case of this kind exchange operation, first, the work table 45 and the prober 46 corresponding to the liquid crystal panel 14 to be newly inspected are replaced. This change causes a shift between the center of the outer shape of the panel transport unit 12 and the display center of the inspection unit 13. Therefore, the adjustment is performed as follows. In this case, in the subroutine of the product replacement work part in the flowchart (not shown) for controlling the entire lighting inspection device 11, it is determined whether the product replacement work at the first installation or the product replacement work at the second and subsequent installations. In the case of the product replacement work at the time of the first mounting, the process is set to proceed to the flowchart of FIG.

  In the case of the product replacement work at the time of the first loading, first, as shown in FIG. 14, the ID of the work table 45 is input from the input means 53 (step 1). This ID may be a number or alphabet, or a symbol such as a barcode.

  Next, an offset value is input from the input means 53 (step 2). Specifically, X = several mm and Y = several mm are input from the input unit 53. This offset value (correction value) is stored in the correction value storage means 54. With the input of the offset value, the drive motors 48 to 51 are controlled by the control means 52, and the XYZθ stage 43 finely adjusts the work table 45 in the XY direction.

  Next, the height of the arm unit 20 is adjusted (correction when the arm unit 20 is shifted downward) (step 3). The liquid crystal panel 14 is actually transported and transferred between the panel transport unit 12 and the inspection unit 13 and the like, and the degree of shift is confirmed, and if it is shifted, it is adjusted. In this case, the transfer arm 15 is moved to a position directly above the work table 45 of the panel transfer unit 12 so that the panel clamp 23 and the notch 65 are aligned and the liquid crystal panel 14 does not ride on the positioning pin 63. The amount of displacement of the arm unit 20 is adjusted from the input means 53 while the operator visually confirms whether or not. Specifically, the amount of rotation of the Y-axis drive motor 35 of the Y-direction moving mechanism unit 26 is controlled to adjust the height of the lower vertical clamp arm unit 21A. After the adjustment, the operator visually confirms the positions of the panel clamp 23 and the notch 65 and the positions of the liquid crystal panel 14 and the positioning pins 63. If they are still shifted, the rotation amount of the Y-axis drive motor 35 is controlled. Adjust the height of the lower upper and lower clamp arm portion 21A and check the degree of deviation again. This is repeated until they match each other.

  The rotation control amount (correction value) input from the input unit 53 temporarily stores the correction value after the final correction while overwriting each time it is input.

  As a result, when the deviation between the center of the outer shape and the display center and the deviation of the height of the arm portion 20 are resolved, the product exchange operation is completed, and the product exchange completion button on the touch panel surface is pressed (step 4). As a result, the associating unit associates the identification symbol input by the input unit 53 with the offset value stored in the correction value storage unit 54 and stores it in the correction value storage unit 54.

  As a result, the product replacement operation is completed. The ID is recorded in the work table 45. Next, normal inspection work is performed.

  If the type exchange work is the type exchange work for the second and subsequent installations, as shown in FIG. 15, the record ID is selected and input from the input means 53 to the work table 45 (step 5). This ID is selected from the ID list.

  Next, the liquid crystal panel 14 is actually transported and transferred between the panel transport unit 12 and the inspection unit 13 and the like, and the degree of deviation is confirmed (step 6). In this case, since the work table 45 has already been adjusted, no deviation occurs.

  For this reason, the product replacement operation is completed, and the product replacement completion button on the touch panel surface is pressed (step 7). This completes the product exchange operation.

  As a result, the adjustment work required at the time of the product replacement work can be performed only once, and after that, it is only necessary to input the ID, so that the product replacement work can be made more efficient and simplified. .

It is a schematic block diagram which shows the lighting inspection apparatus which concerns on embodiment of this invention. It is explanatory drawing which shows the conveyance offset in a lighting inspection apparatus. It is a front view which shows the panel conveyance part of the lighting inspection apparatus which concerns on embodiment of this invention. It is a side view which shows the panel conveyance part of the lighting inspection apparatus which concerns on embodiment of this invention. It is a front view which shows the state which extended the conveyance arm of the panel conveyance part of the lighting inspection apparatus which concerns on embodiment of this invention. It is principal part sectional drawing which shows the part of the upper conveyance arm of the lighting inspection apparatus which concerns on embodiment of this invention. It is principal part sectional drawing which shows the part of the lower conveyance arm of the lighting inspection apparatus which concerns on embodiment of this invention. It is a schematic front view which shows the test | inspection part of the lighting test | inspection apparatus which concerns on embodiment of this invention. It is a schematic sectional side view which shows the test | inspection part of the lighting test | inspection apparatus which concerns on embodiment of this invention. It is a front view which shows the work table of the lighting inspection apparatus which concerns on embodiment of this invention. It is a functional block diagram which shows the control system of the lighting inspection apparatus which concerns on embodiment of this invention. It is a front view which shows the delivery state of the liquid crystal panel in the lighting test | inspection apparatus which concerns on embodiment of this invention. It is a top view which shows the delivery state of the liquid crystal panel in the lighting test | inspection apparatus which concerns on embodiment of this invention. It is a flowchart which shows the initial setting at the time of the first time mounting at the time of the product replacement | exchange in the lighting inspection apparatus which concerns on embodiment of this invention. It is a flowchart which shows the initial setting at the time of mounting after the 2nd time at the time of product | type exchange in the lighting inspection apparatus which concerns on embodiment of this invention.

Explanation of symbols

  11: lighting inspection device, 12: panel transport section, 13: inspection section, 14: liquid crystal panel, 15: transport arm, 16: drive mechanism, 20: arm section, 21: clamp arm section, 22: rail section, 21: Clamp arm part, 22: Rail part, 23: Panel clamp, 25: X direction moving mechanism part, 26: Y direction moving mechanism part, 28: Rail part, 29: X axis drive motor, 30: Ball screw, 31: Nut, 33: Slide plate, 34: Rail portion, 35: Y axis drive motor, 36: Ball screw, 37: Nut, 39: Guide, 40: Guide, 41: Coupling, 42: Bearing, 43: XYZθ stage, 44: Back Light, 45: work table, 46: prober.

Claims (5)

In a lighting inspection apparatus including a transport unit that transports the inspection target plate with reference to the outer shape center of the inspection target plate, and an inspection unit that inspects the inspection target plate with reference to the display center of the inspection target plate.
A lighting inspection apparatus comprising: a correction unit that corrects a deviation between the outer shape center of the transport unit and the display center of the inspection unit. The lighting inspection apparatus according to claim 1,
The correction means stores a correction value storage means for correcting a deviation between the center of the outer shape of the transport section and the display center of the inspection section, an identification symbol input means for inputting an identification symbol, and the identification A lighting inspection apparatus comprising: an association means for associating the identification symbol input by the symbol input means with the correction value stored by the correction value storage means and storing the correlation value in the correction value storage means. In the lighting inspection apparatus according to claim 2,
The transport unit includes a transport arm that supports the inspection target plate,
The lighting inspection apparatus, wherein the correction value storage means stores a correction value obtained by correcting the amount of shift of the transfer arm downward. In the lighting inspection device according to claim 2 or 3,
A work table that supports the inspection target plate, an alignment stage that supports the work table and aligns the inspection target plate, and a control unit that controls the alignment stage,
The lighting inspection apparatus, wherein the control unit includes the correction means. In the lighting inspection apparatus according to any one of claims 2 to 4,
The lighting inspection apparatus, wherein the identification symbol input by the identification symbol input means is an ID number or a barcode.

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