JP4362386B2 - Electronic circuit board, panel display device, and product discrimination method - Google Patents

Description

  The present invention relates to an electronic circuit board, a panel-type display device, and a product discriminating method which are the same or similar in appearance but can easily discriminate between models and models.

  In the trial production and mass production processes of liquid crystal display devices and the like, the number of pixels and the transmittance are different, but the external size and electrical specifications are all the same, and it may be extremely difficult to distinguish the difference in appearance. In the inspection process, if these different types of products are mixed due to human error, carelessness, or failure of the transfer device, etc., it will be enlarged by a stereomicroscope or monitor, and the characters printed on the product will be visually checked. You have to make a selection while checking each one.

  For example, as shown in FIG. 4, there are two small liquid crystal display devices for mobile displays CDE123A and CDE123B, which are of different types that are hardly discernable in appearance. In order to distinguish these, model numbers are patterned at one corner of the panel (lower left part of the panel in the drawing) such as “123A” and “123B”, for example. As described above, in a normal display panel or electronic circuit board, the model name is patterned in one corner of the panel or board (for example, a space near the test pad formation region) (for example, see Non-Patent Document 1). However, as the patterning area is reduced, the height of the characters is about 0.4 mm to 0.5 mm, and visual discrimination is extremely difficult.

  If for some reason, for example, two panels with different types are difficult to distinguish in the inspection process, check the model name and the size and position of the FOG pad at the corner of the panel. There was no other way than sorting. For this reason, in the unlikely event that mixing is detected due to a flow error, there is a risk that a great deal of man-hours may be required for product selection and inspection. In addition, there is a risk that it could not be sorted out and would flow out to the subsequent process. Therefore, establishment of a new discriminating means and discriminating method having a mechanism for solving these problems has been urgently required.

Sony Corporation Product Specification “ACX506AKZ”

  The problem to be solved is that it is very difficult to distinguish the difference between products that are the same or very similar in appearance.

  In the electronic circuit board of the present invention, a plurality of types of electronic circuit boards are prepared, and two types of electronic circuit boards having the same or similar appearance and shape are used. A first electronic circuit board is provided with a pair of electrical terminals capable of determining an electrical difference, and a resistor having the same resistance value is connected between the electrical terminals, and the other of the two types of electronic circuit boards The second electronic circuit board of the type is provided with an electrical terminal only at one of the same positions as the pair of electrical terminals provided on the first electronic circuit board, and the electrical terminal is virtually assumed at the other position, The main feature is that different models or types can be discriminated by measuring an electrical difference between the electrical terminals including a virtual electrical terminal.

  A plurality of panel type display devices according to the present invention are prepared for each type, and in two types of panel type display devices having the same or similar appearance and shape, one of the two types of panel type display devices is selected. A pair of electrical terminals capable of discriminating electrical differences are provided on the first panel type display device of the type, and a resistor having the same resistance value is connected between the electrical terminals, so that the two types of panel type display devices are provided. Of these, the other type of second panel type display device is provided with an electrical terminal only at one of the same positions as the pair of electrical terminals provided in the first panel type display device, and at the other position an electrical terminal. The main feature is that different models or types can be discriminated by measuring the electrical difference between the electrical terminals including the virtual electrical terminal.

  The product discriminating method of the present invention is a method for discriminating two types of products which are prepared for each type and have the same or similar appearance and shape. A pair of electrical terminals capable of discriminating electrical differences is provided in one product, a resistor having the same resistance value is connected between the electrical terminals, and the second of the other types of the two types of products is connected. The electrical terminal including the virtual electrical terminal, wherein the electrical terminal is provided only at one of the same positions as the pair of electrical terminals provided on the product and the electrical terminal is virtually assumed at the other position. The main feature is to distinguish different models or models by measuring the electrical difference between them.

  Since the electronic circuit board of the present invention is provided with a pair of electrical terminals (including virtual electrical terminals) capable of discriminating electrical differences on the electronic circuit board, it differs by measuring the electrical difference between the electrical terminals. Since it is possible to discriminate the model or model, it is possible to accurately and quickly discriminate electronic circuit boards that are different in model or model but have the same or similar appearance and shape by electrical difference. There is an advantage. Therefore, it is easy to avoid mixing different types of products in the inspection process. In addition, it became possible to distinguish models by automating shape inspection and electrical inspection.

  Since the panel type display device of the present invention is provided with a pair of electrical terminals (including virtual electrical terminals) capable of discriminating electrical differences in the panel type display device, the electrical difference between the electrical terminals is measured. It is possible to discriminate between different models or models, so panel type display devices with different models or models but with the same or similar appearance and shape can be identified accurately and quickly based on electrical differences. There is an advantage that you can. Therefore, it is easy to avoid mixing different types of products in the inspection process. In addition, it became possible to distinguish models by automating shape inspection and electrical inspection.

  In the product discrimination method of the present invention, since a plurality of products are provided with a pair of electrical terminals (including virtual electrical terminals) that can discriminate electrical differences, electrical differences between electrical terminals can be measured. Thus, there is an advantage that a plurality of products having the same or similar appearance and shape can be accurately and quickly discriminated by an electrical difference. Therefore, it is easy to avoid mixing different types of products in the inspection process. In addition, it became possible to distinguish models by automating shape inspection and electrical inspection.

  The purpose of facilitating the discrimination of products that are the same or very similar in appearance is easy by providing a pair of electrical terminals capable of discriminating electrical differences and measuring the electrical difference between the electrical terminals. Realized.

A reference example relating to an electronic circuit board , a panel type display device, and a product discrimination method will be described with reference to FIG. Here, a description will be given of the discrimination of three types of panel type display devices that are almost indistinguishable in appearance, such as model A, model B, and model C, for example. In addition, regarding the electronic circuit board, it is possible to distinguish between different models or types by providing electrical terminals and resistors similar to those of the panel type display device described below between models or models.

  As shown in FIG. 1, a pair of electrical terminals 11 and 12 are provided on the substrates of the panel type display device models A, B, and C, respectively. A resistor 21 is connected between the pair of electrical terminals 11 and 12 of the model A. Similarly, a resistor 22 is connected between the pair of electrical terminals 11 and 12 of the model B. The resistor 22 has a resistance value different from that of the resistor 21. For example, the resistor 22 has a resistance value smaller than that of the resistor 21. On the contrary, a resistor having a resistance value larger than that of the resistor 21 may be used. The pair of electrical terminals 11 and 12 of the model C is left open.

  Next, a method for discriminating between the panel type display devices will be described. The model A, model B, and model C of the panel type display device have the same or similar appearance and shape. As a method for discriminating such a plurality of products, as explained with reference to FIG. 1 above, a pair of electric devices capable of discriminating electrical differences between models (products) for each of model A, model B, and model C. The model terminals A and B and the model C are discriminated by measuring the electrical difference between the electrical terminals 11 and 12, for example, the electrical resistance. In addition to the panel type display device, for example, a similar determination method can be applied to an electronic circuit board.

  In this way, a pair of electrical terminals 11 and 12 are provided, and the resistors 21 and 22 are connected between the electrical terminals 11 and 12 or the electrical terminals 11 and 12 are opened so that they are different between models. Therefore, when the resistance value between the electrical terminals 11 and 12 is measured between the models A, B, and C, measurement results of different resistance values are obtained. Thereby, each model A, B, and C can be easily and quickly discriminated by electrical inspection. Therefore, the electronic circuit board and the panel type display device of the present invention can easily avoid, for example, mixing of different models in the inspection process. In addition, it is possible to discriminate models by automating shape inspection and electrical inspection.

  In the above explanation, an example of discrimination between three models has been explained. However, when the number of models further increases, it is possible to discriminate between models by using resistors with different resistance values between models. Become. The resistance value of each resistor should just be what can distinguish the difference of the resistance value provided between each model reliably with a resistance measuring device.

  One of the electrical terminals 11 and 12 can be an inspection terminal or an aging terminal used when inspecting the characteristics of the panel type display device. When one of the electrical terminals 11 and 12 is an inspection terminal used for inspecting the characteristics of the panel display device, the other electrical terminal is not connected except for the resistor 21. It is preferable that

  A resistor (not shown) may be connected between the pair of electrical terminals 11 and 12 of the model C. In this case, a resistor having a resistance value different from that of the resistors 21 and 22 is used as the resistor of the model C. The resistance value of each resistor can be selected as appropriate.

Next, an embodiment of the electronic circuit board, the panel-type display device and product discriminating method of the present invention will be described by Figure 2. Here, the distinction between two types of electronic circuit boards, for example, model A and model B, which are almost indistinguishable in appearance will be described. Note that the panel type display device can be discriminated between different models or types by providing electrical terminals and resistors similar to those of the electronic circuit board described below between models or types.

  As shown in FIG. 2, basically, a pair of electrical terminals 11 and 12 are provided on each of the electronic circuit board models A and B. Here, for the model A, a pair of electrical terminals is provided. Of the terminals, only the electrical terminal 11 is provided, and the electrical terminal 12 is not formed. Therefore, a resistor connected to the electrical terminal 11 is not formed. On the other hand, for the model B, a pair of electrical terminals 11 and 12 are provided, and one of the electrical terminals 11 uses a terminal for performing another electrical measurement, for example. For example, an aging terminal is used. On the other hand, the electrical terminal 12 is not electrically connected except for the resistor 22 described later. A resistor 22 is connected between the electrical terminals 11 and 12. Although the electrical terminal 12 is not formed, only the position 12 '(corresponding to the position where the electrical terminal 12 is formed) connected to the electrical terminal 11 and measuring the resistance value is secured, and the position For example, 12 ′ is a predetermined position of an insulating film covering the panel type display device. In other words, although the electrical terminal 12 made of a conductive material is not formed here, the electrical terminal 11 and other conductive materials must be determined unless two predetermined points are determined when measuring the resistance between the terminals. This is for the purpose of avoiding that it is impossible to exclude the case where the resistance value between the two parts (not shown) is measured and the resistance value is the same as or similar to the resistance value measured in the model B.

  Next, a method for discriminating between the panel type display devices will be described. The model A and model B of the panel display device have the same or similar appearance and shape. As a method for discriminating such a plurality of products, as explained with reference to FIG. 2, a pair of electrical terminals 11 capable of discriminating electrical differences between models (products) for each of model A and model B, 12 (for the model A, only the electrical terminal 11) is provided, and the model A and the model B are discriminated by measuring the electrical difference between the electrical terminals 11 and 12, for example, the electrical resistance. In addition to the panel type display device, for example, a similar determination method can be applied to an electronic circuit board.

  Thus, basically, a pair of electrical terminals 11 and 12 are provided, and for the model A, only the electrical terminal 11 of the pair of electrical terminals is provided for the model A. Since the pair of electrical terminals 11 and 12 and the resistor 22 for connecting the pair of electrical terminals 11 and 12 are provided, the model A can measure the resistance value using the electrical terminal 11. First, since the model B can measure the resistance value, the models A and B can be easily and quickly discriminated. Therefore, the electronic circuit board and the panel type display device of the present invention can easily avoid, for example, mixing of different models in the inspection process. In addition, it is possible to discriminate models by automating shape inspection and electrical inspection.

Next, a reference example relating to an electronic circuit board , a panel display device, and a product discrimination method will be described with reference to FIG. Here, the distinction between two types of panel type display devices that are almost indistinguishable in appearance, for example, model A and model B will be described. In addition, regarding the electronic circuit board, it is possible to distinguish between different models or types by providing electrical terminals and resistors similar to those of the panel type display device described below between models or models.

  As shown in FIG. 3, basically, a pair of electrical terminals 11 and 12 are provided on each substrate of the panel type display device model A and B, and one of the electrical terminals 11 is, for example, another electrical terminal. Use the terminal to perform the target measurement. The other electrical terminal 12 is preferably in an electrically floating state. Therefore, for the model A, the pair of electrical terminals 11 and 12 are open, and no resistor is connected. On the other hand, for the model B, a pair of electrical terminals 11 and 12 are provided, and one of the electrical terminals 11 uses a terminal for performing another electrical measurement, for example. For example, an aging terminal is used. The other electrical terminal 12 is not electrically connected except for a resistor 22 described later. A resistor 22 is connected between the electrical terminals 11 and 12.

  Next, a method for discriminating between the panel type display devices will be described. The model A and model B of the panel display device have the same or similar appearance and shape. As a method for discriminating such a plurality of products, as described with reference to FIG. 3 above, a pair of electrical terminals 11 capable of discriminating electrical differences between each model (product) for each of model A and model B. , 12 are measured, and the electrical difference between the electrical terminals 11, 12, for example, the electrical resistance, is measured to determine the model A, the model B, and the model C. In addition to the panel type display device, for example, a similar determination method can be applied to an electronic circuit board.

  In this way, basically, a pair of electrical terminals 11 and 12 are provided, and the model A is not provided with a resistor between the pair of electrical terminals 11 and 12 so as to be different between the models. Is provided with a pair of electrical terminals 11 and 12 and a resistor 22 for connecting between the pair of electrical terminals 11 and 12, the model A can measure the resistance value using the electrical terminals 11. However, since the model B can measure the resistance value, the models A and B can be easily and quickly discriminated. Therefore, the electronic circuit board and the panel type display device of the present invention can easily avoid, for example, mixing of different models in the inspection process. In addition, it is possible to discriminate models by automating shape inspection and electrical inspection.

The resistor material used in the above embodiment may be a metal resistance wire, or a polysilicon resistor, a diode, a capacitor, a transistor, or any of these, as long as it can be identified by a resistance value between terminals. Chip parts are also acceptable. In addition, although one terminal of the pair of electrical terminals 11 and 12 is used as another terminal for performing other electrical measurements, for example, it is also used as an aging terminal. However, the terminal that can be used in combination is not limited to the aging terminal. It may be a terminal for performing a measurement. Further, one terminal of the pair of electrical terminals may be used as a plurality of inspection terminals having different purposes.

Since the electrical difference is clear as in the embodiment described above, as an example, for the prototype, the setting is performed manually, and the electrical measurement is performed automatically, but for the mass-produced product, The transfer, setting, shape recognition discrimination, electrical discrimination, etc. can all be performed by a robot or an automatic machine, and a reliable and high-speed inspection method is established. In addition, there is also an advantage that the difference in shape depending on the presence or absence of a resistor and the presence or absence of an electrical terminal becomes clear.

  The electronic circuit board and panel type display device of the present invention can be applied to various electronic devices and various display devices, and the product discrimination method of the present invention is not limited to the discrimination of electronic circuit boards and panel type display devices. Also, it can be applied to the use of discriminating between various substrates and various panels that look the same or similar in appearance.

It is drawing which showed the reference example which concerns on an electronic circuit board , a panel type display apparatus, and the discrimination method of a product. It is drawing which showed the Example which concerns on the electronic circuit board of this invention, a panel type display apparatus, and the discrimination method of a product. It is drawing which showed the reference example which concerns on an electronic circuit board , a panel type display apparatus, and the discrimination method of a product. It is drawing which showed the subject of the conventional panel type display apparatus.

  11, 12 ... Electrical terminal

Claims (3)

In two types of electronic circuit boards that are prepared for each type and have the same or similar appearance and shape,
Of the two types of electronic circuit boards, one type of first electronic circuit board is provided with a pair of electrical terminals capable of distinguishing electrical differences, and a resistor having the same resistance value is provided between the electrical terminals. connection,
Of the two types of electronic circuit boards, the other type of second electronic circuit board is provided with an electrical terminal only at one of the same positions as the pair of electrical terminals provided on the first electronic circuit board, and the other Virtual position of the electrical terminal,
An electronic circuit board, wherein different models or types can be distinguished by measuring an electrical difference between the electrical terminals including the virtual electrical terminal. In two types of panel type display devices that are prepared for each type and have the same or similar appearance and shape,
Among the two types of panel type display devices, one type of the first panel type display device is provided with a pair of electrical terminals capable of determining an electrical difference, and a resistor having the same resistance value between the electrical terminals. Connect the body,
Of the two types of panel type display devices, the other type of second panel type display device is provided with an electrical terminal only at one of the same positions as the pair of electrical terminals provided on the first panel type display device. And virtual the electrical terminal at the other position,
A panel type display device characterized in that it is possible to discriminate between different models or models by measuring an electrical difference between the electrical terminals including the virtual electrical terminal. In the method of distinguishing two types of products that are prepared for each type and have the same or similar appearance and shape,
Among the two types of products, one type of first product is provided with a pair of electrical terminals capable of determining an electrical difference, and a resistor having the same resistance value is connected between the electrical terminals,
Of the two types of products, the other type of second product is provided with an electrical terminal only at one of the same positions as the pair of electrical terminals provided on the product, and the electrical terminal is virtually assumed at the other position. ,
A method for discriminating products, wherein different models or types are discriminated by measuring an electrical difference between the electrical terminals including the virtual electrical terminal.

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