Display device and display device detection method

Abstract

The embodiment of the invention provides display equipment and a display equipment detection method, and is applied to the technical field of display. The display device comprises at least two circuit boards and at least two reference resistors. Each circuit board is at least connected in parallel with one reference resistor, and the reference resistors connected in parallel with the circuit boards are different; the reference resistors are connected in series, one end of a third series circuit formed by the reference resistors is connected with a first test point, and the other end of the third series circuit is connected with a second test point; wherein the resistance value of the reference resistor is far greater than that of the binding resistor of the circuit board. According to the display device provided by the embodiment of the invention, at least one reference resistor can be connected in parallel to each circuit board, and the resistance value of the reference resistor is far greater than the binding resistance of the circuit board, so that the binding condition of each circuit board can be judged through the resistance value in the test loop, and a needle insertion test on each circuit board is avoided; and the detection efficiency of the display equipment is improved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display device and a display device detection method. Background Art

[0002] As a development trend, OLED (Organic Light-Emitting Diode) display technology is gradually being applied to medium and large-sized products such as smartphones and large-size TV screens. Among them, one OLED display module is bound with multiple FPCs (Flexible Printed Circuits) or COFs (Chip On Flex).

[0003] In the related art, in order to check whether the FPC binding in the OLED display module is normal, it is usually determined by testing the bonding resistors in the FPC one by one. In actual applications, one OLED display module has multiple FPCs bound to it. To determine whether a specific FPC binding is abnormal, it is necessary to perform a needle test on each binding point. Therefore, the application of this method not only has low detection efficiency, but also because there are many test points, it may introduce new risks of defects in multiple measurements. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a display device and a display device detection method to solve the problem of low display device detection efficiency. The specific technical solution is as follows:

[0005] In a first aspect of an embodiment of the present application, a display device is provided, the display device comprising at least two circuit boards and at least two reference resistors;

[0006] Each of the circuit boards is connected in parallel with at least one of the reference resistors, and the reference resistors connected in parallel with the circuit boards are different;

[0007] The reference resistors are connected in series, one end of a third series circuit formed by the reference resistors is connected to a first test point, and the other end of the third series circuit is connected to a second test point;

[0008] The resistance value of the reference resistor is much greater than the binding resistance of the circuit board.

[0009] In a possible implementation, for any one of the circuit boards, the binding resistors in the circuit board are connected in series, and a reference resistor is connected in parallel to the series circuit formed by the binding resistors in the circuit board.

[0010] In a possible implementation, for any one of the circuit boards, the binding resistors on one side of the circuit board are connected in series to form a first series circuit, and the binding resistors on the other side of the circuit board are connected in series to form a second series circuit. The first series circuit is connected in parallel with a reference resistor, and the second series circuit is connected in parallel with a reference resistor, and the reference resistors in parallel with the first series circuit and the second series circuit are different.

[0011] In a possible implementation, for a first type of circuit board in each of the circuit boards, each binding resistor in the first type of circuit board is connected in series, and a reference resistor is connected in parallel to the series circuit formed by each binding resistor in the circuit board;

[0012] For the second type of circuit boards in each of the circuit boards, the binding resistors on one side of the second type of circuit boards are connected in series to form a first series circuit, and the binding resistors on the other side of the second circuit boards are connected in series to form a second series circuit. The first series circuit is connected in parallel with a reference resistor, and the second series circuit is connected in parallel with a reference resistor, and the reference resistors in parallel with the first series circuit and the second series circuit are different.

[0013] In a possible implementation manner, the reference resistors are resistors with the same resistance value.

[0014] In a possible implementation manner, the reference resistors are resistors with different resistance values.

[0015] In a possible implementation manner, in order from one end to the other end of the third series circuit, the resistance value of each reference resistor in the third series circuit is twice the resistance value of a previous reference resistor.

[0016] In a possible implementation, the display device further includes: a detection module, the detection module connecting the first test point and the second test point;

[0017] The detection module is used to obtain a first resistance value between the first test point and the second test point, and determine a binding abnormality detection result of each of the circuit boards according to the first resistance value.

[0018] In a possible implementation, the detection module is specifically used to: obtain a correspondence between a predetermined resistance value and a circuit board binding detection result; and search the circuit board binding detection result corresponding to the first resistance value in the correspondence as a binding abnormality detection result of each circuit board.

[0019] In a possible implementation manner, the at least two circuit boards are a first circuit board, a second circuit board, a third circuit board, and a fourth circuit board; the at least two reference resistors are a first reference resistor, a second reference resistor, a third reference resistor, and a fourth reference resistor;

[0020] The first circuit board is connected in parallel with the first reference resistor, the second circuit board is connected in parallel with the second reference resistor, the third circuit board is connected in parallel with the third reference resistor, and the fourth circuit board is connected in parallel with the fourth reference resistor;

[0021] The resistance values ​​of the first reference resistor, the second reference resistor, the third reference resistor, and the fourth reference resistor are all R; the resistance values ​​of the first circuit board, the second circuit board, the third circuit board, and the fourth circuit board are all 4R bond ;

[0022] The detection module is specifically used to: if the first resistance value is approximately equal to 4*4R bond , it is determined that all the circuit boards are bound normally;

[0023] If the first resistance value is approximately equal to R, it is determined that a binding abnormality occurs in one of the circuit boards;

[0024] If the first resistance value is approximately equal to 2R, it is determined that two circuit boards in each of the circuit boards have a binding abnormality;

[0025] If the first resistance value is approximately equal to 3R, it is determined that three of the circuit boards have binding abnormalities;

[0026] If the first resistance value is approximately equal to 4R, it is determined that binding abnormality occurs in each of the circuit boards.

[0027] In a possible implementation manner, the at least two circuit boards are a first circuit board, a second circuit board, a third circuit board, and a fourth circuit board; the at least two reference resistors are a first reference resistor, a second reference resistor, a third reference resistor, and a fourth reference resistor;

[0028] The first circuit board is connected in parallel with the first reference resistor, the second circuit board is connected in parallel with the second reference resistor, the third circuit board is connected in parallel with the third reference resistor, and the fourth circuit board is connected in parallel with the fourth reference resistor;

[0029] The first reference resistor is R, the second reference resistor is 2R, the third reference resistor is 4R, and the fourth reference resistor is 8R; the resistance values ​​of the first circuit board, the second circuit board, the third circuit board, and the fourth circuit board are all 4R bond ;

[0030] The detection module is specifically used to: if the first resistance value is approximately equal to 4*4R bond , it is determined that all the circuit boards are bound normally;

[0031] If the first resistance value is approximately equal to R, it is determined that a binding abnormality occurs in the first circuit board;

[0032] If the first resistance value is approximately equal to 2R, it is determined that a binding abnormality occurs in the second circuit board;

[0033] If the first resistance value is approximately equal to 4R, it is determined that a binding abnormality occurs in the third circuit board;

[0034] If the first resistance value is approximately equal to 8R, it is determined that a binding abnormality occurs in the fourth circuit board;

[0035] If the first resistance value is approximately equal to 3R, it is determined that a binding abnormality occurs between the first circuit board and the second circuit board;

[0036] If the first resistance value is approximately equal to 5R, it is determined that a binding abnormality occurs between the first circuit board and the third circuit board;

[0037] If the first resistance value is approximately equal to 6R, it is determined that a binding abnormality occurs between the second circuit board and the third circuit board;

[0038] If the first resistance value is approximately equal to 7R, it is determined that a binding abnormality occurs among the first circuit board, the second circuit board, and the third circuit board;

[0039] If the first resistance value is approximately equal to 9R, it is determined that a binding abnormality occurs between the first circuit board and the fourth circuit board;

[0040] If the first resistance value is approximately equal to 10R, it is determined that a binding abnormality occurs between the second circuit board and the fourth circuit board;

[0041] If the first resistance value is approximately equal to 11R, it is determined that a binding abnormality occurs among the first circuit board, the second circuit board, and the fourth circuit board;

[0042] If the first resistance value is approximately equal to 12R, it is determined that a binding abnormality occurs between the third circuit board and the fourth circuit board;

[0043] If the first resistance value is approximately equal to 13R, it is determined that a binding abnormality occurs among the first circuit board, the third circuit board, and the fourth circuit board;

[0044] If the first resistance value is approximately equal to 14R, it is determined that a binding abnormality occurs among the second circuit board, the third circuit board, and the fourth circuit board;

[0045] If the first resistance value is approximately equal to 15R, it is determined that all the circuit boards have binding abnormalities.

[0046] In a second aspect of the embodiments of the present application, a display device detection method is provided, the method being applied to any display device described in the first aspect of the embodiments of the present application, the method comprising:

[0047] Obtaining a first resistance value between the first test point and the second test point;

[0048] The binding abnormality detection result of each circuit board is determined according to the first resistance value.

[0049] In a possible implementation manner, determining the binding abnormality detection result of each circuit board according to the first resistance value includes:

[0050] Obtaining a correspondence between a predetermined resistance value and a circuit board binding test result;

[0051] The circuit board binding detection result corresponding to the first resistance value is searched in the corresponding relationship as the binding abnormality detection result of each circuit board.

[0052] In a possible implementation, the display device includes at least two circuit boards and at least two reference resistors; the at least two circuit boards are a first circuit board, a second circuit board, a third circuit board, and a fourth circuit board; the at least two reference resistors are a first reference resistor, a second reference resistor, a third reference resistor, and a fourth reference resistor;

[0053] The first circuit board is connected in parallel with the first reference resistor, the second circuit board is connected in parallel with the second reference resistor, the third circuit board is connected in parallel with the third reference resistor, and the fourth circuit board is connected in parallel with the fourth reference resistor;

[0054] The resistance values ​​of the first reference resistor, the second reference resistor, the third reference resistor, and the fourth reference resistor are all R; the resistance values ​​of the first circuit board, the second circuit board, the third circuit board, and the fourth circuit board are all 4R bond ;

[0055] The determining the binding abnormality detection result of each circuit board according to the first resistance value includes:

[0056] If the first resistance value is approximately equal to 4*4R bond , it is determined that all the circuit boards are bound normally;

[0057] If the first resistance value is approximately equal to R, it is determined that a binding abnormality occurs in one of the circuit boards;

[0058] If the first resistance value is approximately equal to 2R, it is determined that two circuit boards in each of the circuit boards have a binding abnormality;

[0059] If the first resistance value is approximately equal to 3R, it is determined that three of the circuit boards have binding abnormalities;

[0060] If the first resistance value is approximately equal to 4R, it is determined that binding abnormality occurs in each of the circuit boards.

[0061] In a possible implementation, the display device includes at least two circuit boards and at least two reference resistors; the at least two circuit boards are a first circuit board, a second circuit board, a third circuit board, and a fourth circuit board; the at least two reference resistors are a first reference resistor, a second reference resistor, a third reference resistor, and a fourth reference resistor;

[0062] The first circuit board is connected in parallel with the first reference resistor, the second circuit board is connected in parallel with the second reference resistor, the third circuit board is connected in parallel with the third reference resistor, and the fourth circuit board is connected in parallel with the fourth reference resistor;

[0063] The first reference resistor is R, the second reference resistor is 2R, the third reference resistor is 4R, and the fourth reference resistor is 8R; the resistance values ​​of the first circuit board, the second circuit board, the third circuit board, and the fourth circuit board are all 4R bond ;

[0064] The determining the binding abnormality detection result of each circuit board according to the first resistance value includes:

[0065] If the first resistance value is approximately equal to 4*4R bond , it is determined that all the circuit boards are bound normally;

[0066] If the first resistance value is approximately equal to R, it is determined that a binding abnormality occurs in the first circuit board;

[0067] If the first resistance value is approximately equal to 2R, it is determined that a binding abnormality occurs in the second circuit board;

[0068] If the first resistance value is approximately equal to 4R, it is determined that a binding abnormality occurs in the third circuit board;

[0069] If the first resistance value is approximately equal to 8R, it is determined that a binding abnormality occurs in the fourth circuit board;

[0070] If the first resistance value is approximately equal to 3R, it is determined that a binding abnormality occurs between the first circuit board and the second circuit board;

[0071] If the first resistance value is approximately equal to 5R, it is determined that a binding abnormality occurs between the first circuit board and the third circuit board;

[0072] If the first resistance value is approximately equal to 6R, it is determined that a binding abnormality occurs between the second circuit board and the third circuit board;

[0073] If the first resistance value is approximately equal to 7R, it is determined that a binding abnormality occurs among the first circuit board, the second circuit board, and the third circuit board;

[0074] If the first resistance value is approximately equal to 9R, it is determined that a binding abnormality occurs between the first circuit board and the fourth circuit board;

[0075] If the first resistance value is approximately equal to 10R, it is determined that a binding abnormality occurs between the second circuit board and the fourth circuit board;

[0076] If the first resistance value is approximately equal to 11R, it is determined that a binding abnormality occurs among the first circuit board, the second circuit board, and the fourth circuit board;

[0077] If the first resistance value is approximately equal to 12R, it is determined that a binding abnormality occurs between the third circuit board and the fourth circuit board;

[0078] If the first resistance value is approximately equal to 13R, it is determined that a binding abnormality occurs among the first circuit board, the third circuit board, and the fourth circuit board;

[0079] If the first resistance value is approximately equal to 14R, it is determined that a binding abnormality occurs among the second circuit board, the third circuit board, and the fourth circuit board;

[0080] If the first resistance value is approximately equal to 15R, it is determined that all the circuit boards have binding abnormalities.

[0081] Beneficial effects of the embodiments of the present application:

[0082] A display device and a display device detection method provided by the embodiment of the present application, the display device includes at least two circuit boards and at least two reference resistors; each circuit board is connected in parallel with at least one reference resistor, and the reference resistors connected in parallel to each circuit board are different; each reference resistor is connected in series, one end of the third series circuit composed of each reference resistor is connected to the first test point, and the other end of the third series circuit is connected to the second test point; wherein the resistance value of the reference resistor is much larger than the binding resistance of the circuit board. The display device using the embodiment of the present application can judge the binding status of each circuit board by connecting at least one reference resistor in parallel to each circuit board, and the resistance value of the reference resistor is much larger than the binding resistance of the circuit board, so as to avoid needle testing on each circuit board, thereby improving the detection efficiency of the display device.

[0083] Of course, implementing any product or method of the present application does not necessarily require achieving all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0084] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other embodiments can also be obtained based on these drawings.

[0085] Figure 1 A circuit connection diagram of a display device in the related art;

[0086] Figure 2 A first circuit connection diagram of a display device provided in an embodiment of the present application;

[0087] Figure 3 Provided in the embodiments of this application Figure 2 A schematic diagram of a display device is shown;

[0088] Figure 4 A second circuit connection diagram of a display device provided in an embodiment of the present application;

[0089] Figure 5 Provided in the embodiments of this application Figure 4 A schematic diagram of a display device is shown;

[0090] Figure 6 A third circuit connection diagram of the display device provided in an embodiment of the present application;

[0091] Figure 7 The embodiments of this application provide Figure 2 The resistance value query diagram established by the circuit diagram shown is shown;

[0092] Figure 8 The embodiments of this application provide Figure 4 The resistance value query diagram established by the circuit diagram shown is shown;

[0093] Fig. 9 A flow chart of a display device detection method provided in an embodiment of the present application. DETAILED DESCRIPTION

[0094] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field based on the present application belong to the scope of protection of the present application.

[0095] In the relevant OLED display technology, a display module in a display device will have multiple FPCs or COFs bound together. Figure 1 As shown, the display module in the display device is bound by 4 FPCs, and detection circuits for detecting the binding resistance are set on the left and right sides of each FPC. In the related art, the binding resistance of the FPC can only be tested one by one to determine whether the binding is normal. Figure 1 When testing the display device shown, it is necessary to perform a needle test at each test point, so the display module needs to be needled 8 times. Applying this method not only increases the production time of the production line equipment, but also increases the risk of module damage due to multiple needles, exacerbating the possibility of process defects. In addition, testing one by one will also make the inspection of the display device less efficient, and in the event of binding anomalies, it will also increase the workload of the analysis engineer and increase the difficulty of the work.

[0096] In order to solve at least one of the above technical problems, in a first aspect of an embodiment of the present application, a display device is provided, the display device comprising at least two circuit boards 201 and at least two reference resistors 202;

[0097] Each circuit board is connected in parallel with at least one reference resistor, and the reference resistors connected in parallel with each circuit board are different.

[0098] The reference resistors are connected in series, one end of a third series circuit formed by the reference resistors is connected to the first test point, and the other end of the third series circuit is connected to the second test point;

[0099] Among them, the resistance value of the reference resistor is much larger than the binding resistance of the circuit board.

[0100] The circuit board in the present application can be an FPC, COF or other forms of integrated circuit boards, all of which are within the scope of protection of the present application. In practical applications, FPC and other circuit boards will be bound in the display device to realize functions such as control and signal transmission. In order to detect the poor binding contact and abnormal binding of the bound circuit board, it is necessary to perform a resistance test on its binding point to determine whether the circuit board binding is abnormal. Among them, the points of the bound circuit board (such as the welding points in the welding binding process) are regarded as binding resistors, and the binding resistors are connected in series to form a test circuit of the FPC circuit board. Among them, the resistance value of the reference resistor is much larger than the resistance value of the binding resistor in the circuit board. It can be understood that in this field, the resistance value of the reference resistor is much larger than the resistance value of the binding resistor, which means that the resistance value of the binding resistor is negligible compared with the resistance value of the reference resistor, and it can be that the order of magnitude of the resistance value of the reference resistor is at least 2 orders of magnitude greater than the resistance value of the binding resistor. For example, the resistance value of the binding resistor is 1Ω, and the resistance value of the reference resistor is 1000Ω.

[0101] The display device using the embodiment of the present application can connect at least one reference resistor in parallel to each circuit board, and the resistance value of the reference resistor is much larger than the binding resistance of the circuit board. In this way, the binding status of each circuit board can be judged by the resistance value in the test loop, avoiding needle testing of each circuit board, thereby improving the detection efficiency of the display device.

[0102] The following will be combined Figure 2-Figure 5 To be specific, it can be understood that Figure 2-Figure 5 The number of circuit boards and reference resistors is for illustration only. In an actual display device, the number of circuit boards and reference resistors can be set according to actual needs.

[0103] In a possible implementation, for any circuit board among the circuit boards, the binding resistors in the circuit board are connected in series, and a reference resistor is connected in parallel to the series circuit formed by the binding resistors in the circuit board.

[0104] In practical applications, the binding resistors in each circuit board are connected in series to form a test circuit for the circuit board. A reference resistor is connected in parallel to the test circuit of each circuit board. The circuit boards are connected in series to form a test circuit for the display device to be tested. Figure 1 and Figure 2 As shown in the figure, a circuit board includes 4 binding resistors. If the resistance values ​​of the binding resistors in the circuit board are equal and the resistance value is R bond , then the resistance value in the test loop of a circuit board is about 4*R bond , 4*R bond Connect in parallel with the reference resistor.

[0105] Figure 2A wiring diagram of a display device provided in an embodiment of the present application, such as Figure 2 As shown, the display device includes four circuit boards, namely, circuit board 1, circuit board 2, circuit board 3 and circuit board 4, and the reference resistors connected in parallel to the circuit boards are R 1 , R 2 , R 3 and R 4 . R 1 , R 2 , R 3 and R 4 Connect them in series to form a third series circuit, and connect one end of the third series circuit to the first test point TP 1 , the other end of the third series circuit is connected to the second test point TP 2 .

[0106] Figure 3 for Figure 2 The equivalent resistance diagram corresponding to the wiring diagram shown is as follows: Figure 3 As shown, TP 1 is the first test point, TP 2 As the resistance value of the reference resistor is much larger than that of the binding resistor, if the path of the binding resistor is normal, the circuit where the reference resistor is located can be regarded as an open circuit. Assume that the resistance values ​​of the binding resistors in the circuit board are equal and the resistance value is R bond , then when the resistance value in the test loop is approximately 4*4*R bond When , it can be determined that all circuit boards are bound normally. When any circuit board has a binding abnormality, its parallel reference resistor will be connected in series to the test loop, and the resistance value of the test loop will increase significantly. For example, if circuit board 1 has a binding abnormality (such as a binding point open circuit, etc.), its parallel reference resistor R 1 Connected in series to the test circuit, the resistance value of the test circuit is approximately R 1 +3*4*R bond , due to R 1 Much larger than R bond , then when the resistance of the test loop is approximately equal to R 1 , it is considered that circuit board 1 has a binding abnormality.

[0107] The display device using the embodiment of the present application can connect a reference resistor in parallel to each circuit board, and the resistance value of the reference resistor is much larger than the binding resistance of the circuit board. In this way, the binding status of each circuit board can be judged by the resistance value in the test loop, avoiding needle testing of each circuit board, thereby improving the detection efficiency of the display device.

[0108] In order to more specifically determine the location where the binding abnormality occurs on the circuit board, in a possible implementation, for any one of the circuit boards, the binding resistors on one side of the circuit board are connected in series to form a first series circuit, and the binding resistors on the other side of the circuit board are connected in series to form a second series circuit. The first series circuit is connected in parallel with a reference resistor, and the second series circuit is connected in parallel with a reference resistor, and the reference resistors in parallel with the first series circuit and the second series circuit are different.

[0109] In practical applications, the bonding resistors can be evenly distributed around the circuit board, such as Figure 4 As shown in the wiring diagram, the binding resistors in each circuit board are evenly arranged near the four corners of the circuit board. According to the left and right directions, the binding resistors of the circuit board are divided into two parts. The binding resistors on the left are connected in series to form the first series circuit of the circuit board, and the binding resistors on the right are connected in series to form the second series circuit of the circuit board. The first series circuit and the second series circuit are each connected in parallel with a reference resistor, so the first series circuit and the second series circuit of circuit board 1 are each connected in parallel with R 1 and R 2 The first series circuit and the second series circuit of the circuit board 2 are each connected in parallel R 3 and R 4 The first series circuit and the second series circuit of the circuit board 3 are connected in parallel R 5 and R 6 ; The first series circuit and the second series circuit of the circuit board 4 are connected in parallel R 7 and R 8 ; By measuring the resistance value of the test loop, the specific location of the binding abnormality in the circuit board can be determined.

[0110] In one example, Figure 5 for Figure 4 The schematic diagram of the circuit diagram shown, where the resistance value of a circuit board is assumed to be 4*R bond , the resistance values ​​on the left and right sides of the circuit board are 2*R bond If the left side of the circuit board 1 has a binding abnormality, the first series circuit of the circuit board will be disconnected, and the reference resistor R 1 Connected in series to the test loop, since the resistance value of the reference resistor is much larger than the resistance value of the binding resistor, the resistance value of the test loop is approximately equal to R 1 Resistance value, thereby determining that a binding abnormality occurs at the left side of circuit board 1.

[0111] A display device using an embodiment of the present application can generate a first series circuit and a second series circuit by connecting the binding resistors on both sides of the circuit board in series, respectively. Different reference resistors are connected in parallel to the first series circuit and the second series circuit respectively, so that the specific location of the binding abnormality on the circuit board can be determined according to the resistance value.

[0112] In a possible implementation manner, the display device in the embodiment of the present application may also be circuit-connected in the following manner:

[0113] For the first type of circuit boards in each circuit board, each binding resistor in the first type of circuit board is connected in series, and a reference resistor is connected in parallel to the series circuit formed by each binding resistor in the circuit board;

[0114] For the second type of circuit boards in each circuit board, the binding resistors on one side of the second type of circuit board are connected in series to form a first series circuit, and the binding resistors on the other side of the second circuit board are connected in series to form a second series circuit. The first series circuit is connected in parallel with a reference resistor, and the second series circuit is connected in parallel with a reference resistor, and the reference resistors in parallel with the first series circuit and the second series circuit are different.

[0115] In practical applications, the series circuits in each circuit board can be connected according to actual needs. For example, the circuit board that only needs to detect whether there is a binding anomaly is determined as the first type of circuit board, and the circuit board that needs to detect the specific location of the binding anomaly is determined as the second type of circuit board. Figure 2 The connection method shown is to connect the binding resistors in the first type of circuit board in series to form a series circuit, and connect the series circuit in parallel with the reference resistor. Figure 4 In the connection mode shown, the binding resistors on one side of the second type of circuit board are connected in series to form a first series circuit, and the binding resistors on the other side are connected in series to form a second series circuit. The first series circuit and the second series circuit are each connected in parallel with a reference resistor. Figure 6 As shown, circuit board 1 and circuit board 2 are first-class circuit boards. Figure 2 The circuit board 3 and the circuit board 4 are the second type of circuit boards. Figure 4 Connect as shown.

[0116] By using the display device according to the embodiment of the present application, the binding resistors in the circuit board can be connected according to actual needs, so that the circuit board with binding abnormality can be determined according to the resistance value in the test loop.

[0117] In a possible implementation, the resistance values ​​of the reference resistors connected in parallel in the series circuit formed by the series connection of the binding resistors in each circuit board can be the same or different. In one example, the resistance values ​​of the reference resistors are the same. 1 =R 2 =R 3 =R 4 , for example, R 1 =R 2 =R 3 =R 4 =2×103 Ω. In another example, each reference resistor is a resistor with unequal resistance value, then R 1 , R 2 , R 3 and R 4 are not equal, for example, R 1 =2×10 3 Ω, R 2 =3×10 3 Ω, R 3 =4×10 3 Ω, R 4 =5×10 3 Ω.

[0118] When the reference resistors are resistors with different resistance values, in order to facilitate the calculation of the resistance values, the resistance values ​​of the reference resistors in the third series circuit can be twice the resistance value of the previous reference resistor in the order from one end to the other end of the third series circuit. The third series circuit is a series circuit composed of the reference resistors connected in series. In an example, R 4 =2R 3 =4R 2 =8R 1 , for example, R 1 =2×10 3 Ω, R 2 =4×10 3 Ω, R 3 =8×10 3 Ω, R 4 =16×10 3 Ω.

[0119] By using the display device of the embodiment of the present application, the resistance values ​​of the reference resistors can be set to be the same, so that the number of circuit boards with binding abnormalities can be determined according to the resistance values ​​in the test loop during detection; and the resistance values ​​of the reference resistors can be set to be different, so that the circuit boards with binding abnormalities can be determined according to the resistance values ​​in the test loop during detection.

[0120] In a possible implementation, the display device of the embodiment of the present application may further include: a detection module, the detection module is connected to the first test point and the second test point;

[0121] The detection module is used to obtain a first resistance value between a first test point and a second test point, and determine a binding abnormality detection result of each circuit board according to the first resistance value.

[0122] like Figure 2 As shown, the first test point is TP 1 , the second test point is TP 2, the detection module obtains the resistance value in the test loop by connecting the first test point and the second test point. The circuit composed of the circuit board to be detected is the test loop, and the resistance value of the test loop measured by the detection module is the first resistance value. In practical applications, the detection module can be an instrument capable of measuring resistance values, such as a megohmmeter, a multimeter, a voltmeter, a single-arm bridge, etc.

[0123] By using the display device of the embodiment of the present application, the resistance value can be obtained through the connection detection module, and the binding abnormality detection result of each circuit board can be determined according to the resistance value, thereby improving the detection efficiency of the circuit board.

[0124] In a possible implementation, the detection module is specifically used to: obtain a correspondence between a predetermined resistance value and a circuit board binding detection result; and search the correspondence for a circuit board binding detection result corresponding to a first resistance value as a binding abnormality detection result for each circuit board.

[0125] In practical applications, the resistance value of the test circuit under various operating conditions can be calculated based on the resistance values ​​of each reference resistor and the binding resistor, and the corresponding relationship between the resistance value and the binding state of the circuit board can be established. Figure 2 The display device shown can pre-calculate the resistance values ​​of the test loops of circuit board 1, circuit board 2, circuit board 3, and circuit board 4 in the case of binding anomalies, as well as the resistance values ​​of the test loops when different numbers of circuit boards have binding anomalies, and establish a corresponding relationship between the resistance value of the display device in different situations and the binding detection results. In one example, the corresponding relationship can be stored in the form of a table, and after obtaining the first resistance value, the binding anomaly detection results of each circuit board are determined by querying the table.

[0126] By using the display device of the embodiment of the present application, a correspondence between resistance value and circuit board binding detection result is pre-established, and the binding abnormality detection result of each circuit board can be directly obtained by querying the correspondence, thereby improving the detection efficiency of the display device.

[0127] In a possible implementation manner, the at least two circuit boards are a first circuit board, a second circuit board, a third circuit board, and a fourth circuit board; the at least two reference resistors are a first reference resistor, a second reference resistor, a third reference resistor, and a fourth reference resistor;

[0128] The first circuit board is connected in parallel with the first reference resistor, the second circuit board is connected in parallel with the second reference resistor, the third circuit board is connected in parallel with the third reference resistor, and the fourth circuit board is connected in parallel with the fourth reference resistor;

[0129] The resistance values ​​of the first reference resistor, the second reference resistor, the third reference resistor, and the fourth reference resistor are all R; the resistance values ​​of the first circuit board, the second circuit board, the third circuit board, and the fourth circuit board are all 4R bond;

[0130] The detection module is specifically used to: if the first resistance value is approximately equal to 4*4R bond , then it is confirmed that all circuit boards are bound normally;

[0131] If the first resistance value is approximately equal to R, it is determined that a binding abnormality occurs in one of the circuit boards;

[0132] If the first resistance value is approximately equal to 2R, it is determined that two circuit boards in each circuit board have a binding abnormality;

[0133] If the first resistance value is approximately equal to 3R, it is determined that three of the circuit boards have binding abnormalities;

[0134] If the first resistance value is approximately equal to 4R, it is determined that binding abnormality occurs in each circuit board.

[0135] In one example, a display module in a display device has four circuit boards, such as Figure 2 As shown, circuit board 1 is the first circuit board, circuit board 2 is the second circuit board, circuit board 3 is the third circuit board, and circuit board 4 is the fourth circuit board. There are 4 binding resistors in each circuit board, and the resistance value of each binding resistor is R bond , then the resistance of each circuit board is 4R bond The first reference resistor, the second reference resistor, the third reference resistor, and the fourth reference resistor have the same resistance value, which is R. Then R 1 =R 2 =R 3 =R 4 =R.

[0136] According to the resistance values ​​of the binding resistor and the reference resistor, a corresponding relationship between the first resistance value and the circuit board binding detection result is pre-established. In one example, Figure 7 Shown for Figure 2 The resistance value query table established by the circuit diagram shown in the figure is Figure 2 The parallel resistor scheme shown is scheme 1, and its resistance setting example is R 1 =R 2 =R 3 =R 4 , where since the resistance value of the reference resistor is much larger than the binding resistor, the resistance value of the binding resistor can be ignored, and the resistance result and judgment are: 1. If the first resistance value is approximately equal to 4*4R bond, it is determined that all circuit boards are bound normally. 2. If the first resistance value is approximately equal to R, it is determined that one of the circuit boards has a binding abnormality. 3. If the first resistance value is approximately equal to 2R, it is determined that two of the circuit boards have a binding abnormality. 4. If the first resistance value is approximately equal to 3R, it is determined that three of the circuit boards have a binding abnormality. 5. If the first resistance value is approximately equal to 4R, it is determined that all circuit boards have a binding abnormality. Among them, "approximately equal to" refers to the calculation result after ignoring the resistance value of the binding resistor.

[0137] By using the display device of the embodiment of the present application, a correspondence between resistance value and circuit board binding detection result can be pre-established, and the binding abnormality detection result of each circuit board can be directly obtained by querying the correspondence, thereby improving the detection efficiency of the display device.

[0138] In a possible implementation manner, the at least two circuit boards are a first circuit board, a second circuit board, a third circuit board, and a fourth circuit board; the at least two reference resistors are a first reference resistor, a second reference resistor, a third reference resistor, and a fourth reference resistor;

[0139] The first circuit board is connected in parallel with the first reference resistor, the second circuit board is connected in parallel with the second reference resistor, the third circuit board is connected in parallel with the third reference resistor, and the fourth circuit board is connected in parallel with the fourth reference resistor;

[0140] The first reference resistor is R, the second reference resistor is 2R, the third reference resistor is 4R, and the fourth reference resistor is 8R;

[0141] The detection module is specifically used to: if the first resistance value is approximately equal to 4*4R bond , then it is confirmed that all circuit boards are bound normally;

[0142] If the first resistance value is approximately equal to R, it is determined that a binding abnormality occurs in the first circuit board;

[0143] If the first resistance value is approximately equal to 2R, it is determined that a binding abnormality occurs in the second circuit board;

[0144] If the first resistance value is approximately equal to 4R, it is determined that a binding abnormality occurs in the third circuit board;

[0145] If the first resistance value is approximately equal to 8R, it is determined that a binding abnormality occurs on the fourth circuit board;

[0146] If the first resistance value is approximately equal to 3R, it is determined that a binding abnormality occurs between the first circuit board and the second circuit board;

[0147] If the first resistance value is approximately equal to 5R, it is determined that a binding abnormality occurs between the first circuit board and the third circuit board;

[0148] If the first resistance value is approximately equal to 6R, it is determined that a binding abnormality occurs between the second circuit board and the third circuit board;

[0149] If the first resistance value is approximately equal to 7R, it is determined that a binding abnormality occurs among the first circuit board, the second circuit board, and the third circuit board;

[0150] If the first resistance value is approximately equal to 9R, it is determined that a binding abnormality occurs between the first circuit board and the fourth circuit board;

[0151] If the first resistance value is approximately equal to 10R, it is determined that a binding abnormality occurs between the second circuit board and the fourth circuit board;

[0152] If the first resistance value is approximately equal to 11R, it is determined that a binding abnormality occurs among the first circuit board, the second circuit board, and the fourth circuit board;

[0153] If the first resistance value is approximately equal to 12R, it is determined that a binding abnormality occurs between the third circuit board and the fourth circuit board;

[0154] If the first resistance value is approximately equal to 13R, it is determined that the first circuit board, the third circuit board, and the fourth circuit board have a binding abnormality;

[0155] If the first resistance value is approximately equal to 14R, it is determined that the second circuit board, the third circuit board, and the fourth circuit board have binding abnormalities;

[0156] If the first resistance value is approximately equal to 15R, it is determined that binding abnormality occurs in all circuit boards.

[0157] In one example, a display module in a display device has four circuit boards, such as Figure 4 As shown, circuit board 1 is the first circuit board, circuit board 2 is the second circuit board, circuit board 3 is the third circuit board, and circuit board 4 is the fourth circuit board. There are 4 binding resistors in each circuit board, and the resistance value of each binding resistor is R bond , then the resistance of each circuit board is 4R bond The resistance values ​​of the first reference resistor, the second reference resistor, the third reference resistor, and the fourth reference resistor are different, and in the order from one end to the other end of the third series circuit, the resistance value of each reference resistor in the third series circuit is twice the resistance value of the previous reference resistor, then R 4 =2R 3 =4R 2 =8R 1 .

[0158] According to the resistance values ​​of the binding resistor and the reference resistor, a corresponding relationship between the first resistance value and the circuit board binding detection result is pre-established. In one example, Figure 8 Shown for Figure 4The resistance value query table established by the circuit diagram shown in the figure is Figure 4 The parallel resistor scheme shown is scheme 2, and its resistance setting example is R 4 =2R 3 =4R 2 =8R 1 , then the corresponding resistance result and judgment are: 1. If the first resistance value is 4*4R bond , it is determined that all circuit boards are bound normally. 2. If the first resistance value is approximately equal to R, it is determined that the first circuit board has a binding abnormality. 3. If the first resistance value is approximately equal to 2R, it is determined that the second circuit board has a binding abnormality. 4. If the first resistance value is approximately equal to 4R, it is determined that the third circuit board has a binding abnormality. 5. If the first resistance value is approximately equal to 8R, it is determined that the fourth circuit board has a binding abnormality. 6. If the first resistance value is approximately equal to 3R, it is determined that the first circuit board and the second circuit board have a binding abnormality. 7. If the first resistance value is approximately equal to 5R, it is determined that the first circuit board and the third circuit board have a binding abnormality. 8 If the first resistance value is approximately equal to 6R, it is determined that the second circuit board and the third circuit board have a binding abnormality. 9. If the first resistance value is approximately equal to 7R, it is determined that the first circuit board, the second circuit board and the third circuit board have a binding abnormality. 10. If the first resistance value is approximately equal to 9R, it is determined that the first circuit board and the fourth circuit board have a binding abnormality. 11. If the first resistance value is approximately equal to 10R, it is determined that the second circuit board and the fourth circuit board have a binding abnormality. 12. If the first resistance value is approximately equal to 11R, it is determined that the first circuit board, the second circuit board and the fourth circuit board have a binding abnormality. 13. If the first resistance value is approximately equal to 12R, it is determined that the third circuit board and the fourth circuit board have a binding abnormality. 14. If the first resistance value is approximately equal to 13R, it is determined that the first circuit board, the third circuit board and the fourth circuit board have a binding abnormality. 15. If the first resistance value is approximately equal to 14R, it is determined that the second circuit board, the third circuit board and the fourth circuit board have a binding abnormality. 16. If the first resistance value is approximately equal to 15R, it is determined that all circuit boards have a binding abnormality.

[0159] By using the display device of the embodiment of the present application, a correspondence between resistance value and circuit board binding detection result can be pre-established, and the binding abnormality detection result of each circuit board can be directly obtained by querying the correspondence, thereby improving the detection efficiency of the display device.

[0160] In a second aspect of the embodiments of the present application, a display device detection method is further provided. The method is applied to any of the above display devices in the first aspect of the embodiments of the present application. The method comprises: Fig. 9 Steps shown:

[0161] Step S901: obtaining a first resistance value between a first test point and a second test point.

[0162] Step S902: determining the binding abnormality detection result of each circuit board according to the first resistance value.

[0163] In practical applications, obtaining the first resistance value is completed by the detection module in any of the above-mentioned display devices in the first aspect of the embodiment of the present application. By applying the method of the embodiment of the present application, at least one reference resistor is connected in parallel to each circuit board, and the resistance value of the reference resistor is much larger than the first resistance value in the display device of the circuit board binding resistor, so that the binding status of each circuit board in the display device can be judged by the first resistance value, avoiding the needle test of each circuit board, thereby improving the detection efficiency of the display device.

[0164] In a possible implementation, step S902 may be implemented by the following steps:

[0165] Step 1: Obtain the correspondence between the predetermined resistance value and the circuit board binding test result.

[0166] Step 2: searching the corresponding relationship for the circuit board binding detection result corresponding to the first resistance value as the binding abnormality detection result of each circuit board.

[0167] By applying the method of the embodiment of the present application, a correspondence between resistance value and circuit board binding detection result is pre-established, and the binding abnormality detection result of each circuit board can be directly obtained by querying the correspondence, thereby improving the detection efficiency of the display device.

[0168] In a possible implementation, a display device using the method of an embodiment of the present application includes at least two circuit boards and at least two reference resistors; the at least two circuit boards are a first circuit board, a second circuit board, a third circuit board, and a fourth circuit board; the at least two reference resistors are a first reference resistor, a second reference resistor, a third reference resistor, and a fourth reference resistor;

[0169] The first circuit board is connected in parallel with the first reference resistor, the second circuit board is connected in parallel with the second reference resistor, the third circuit board is connected in parallel with the third reference resistor, and the fourth circuit board is connected in parallel with the fourth reference resistor;

[0170] The resistance values ​​of the first reference resistor, the second reference resistor, the third reference resistor, and the fourth reference resistor are all R; the resistance values ​​of the first circuit board, the second circuit board, the third circuit board, and the fourth circuit board are all 4R bond ;

[0171] Then step S902 may include the following steps:

[0172] Step A: If the first resistance value is approximately equal to 4*4R bond, then it is confirmed that all circuit boards are bound normally;

[0173] Step B: If the first resistance value is approximately equal to R, it is determined that a binding abnormality occurs in one of the circuit boards;

[0174] Step C: if the first resistance value is approximately equal to 2R, it is determined that two circuit boards in each circuit board have a binding abnormality;

[0175] Step D: If the first resistance value is approximately equal to 3R, it is determined that three circuit boards among the circuit boards have binding abnormalities;

[0176] Step E: If the first resistance value is approximately equal to 4R, it is determined that binding anomalies occur in all circuit boards.

[0177] By using the display device of the embodiment of the present application, the corresponding relationship between the resistance value and the circuit board binding detection result can be obtained by calculation, so that the binding abnormality detection result of each circuit board can be determined by the first resistance value, thereby improving the detection efficiency of the display device.

[0178] In a possible implementation, a display device using the method of an embodiment of the present application includes at least two circuit boards and at least two reference resistors; the at least two circuit boards are a first circuit board, a second circuit board, a third circuit board, and a fourth circuit board; the at least two reference resistors are a first reference resistor, a second reference resistor, a third reference resistor, and a fourth reference resistor;

[0179] The first circuit board is connected in parallel with the first reference resistor, the second circuit board is connected in parallel with the second reference resistor, the third circuit board is connected in parallel with the third reference resistor, and the fourth circuit board is connected in parallel with the fourth reference resistor;

[0180] The first reference resistor is R, the second reference resistor is 2R, the third reference resistor is 4R, and the fourth reference resistor is 8R; the resistance values ​​of the first circuit board, the second circuit board, the third circuit board, and the fourth circuit board are all 4R bond ;

[0181] Then step S902 may include the following steps:

[0182] Step a: If the first resistance value is approximately equal to 4*4R bond , then it is confirmed that all circuit boards are bound normally;

[0183] Step b: If the first resistance value is approximately equal to R, it is determined that a binding abnormality occurs in the first circuit board;

[0184] Step c: If the first resistance value is approximately equal to 2R, it is determined that a binding abnormality occurs in the second circuit board;

[0185] Step d: If the first resistance value is approximately equal to 4R, it is determined that a binding abnormality occurs in the third circuit board;

[0186] Step e: If the first resistance value is approximately equal to 8R, it is determined that a binding abnormality occurs in the fourth circuit board;

[0187] Step f: If the first resistance value is approximately equal to 3R, it is determined that a binding abnormality occurs between the first circuit board and the second circuit board;

[0188] Step g: If the first resistance value is approximately equal to 5R, it is determined that a binding abnormality occurs between the first circuit board and the third circuit board;

[0189] Step h: If the first resistance value is approximately equal to 6R, it is determined that a binding abnormality occurs between the second circuit board and the third circuit board;

[0190] Step i: If the first resistance value is approximately equal to 7R, it is determined that the first circuit board, the second circuit board and the third circuit board have a binding abnormality;

[0191] Step j: if the first resistance value is approximately equal to 9R, it is determined that a binding abnormality occurs between the first circuit board and the fourth circuit board;

[0192] Step k: if the first resistance value is approximately equal to 10R, it is determined that a binding abnormality occurs between the second circuit board and the fourth circuit board;

[0193] Step 1: If the first resistance value is approximately equal to 11R, it is determined that the first circuit board, the second circuit board and the fourth circuit board have binding abnormalities;

[0194] Step m: if the first resistance value is approximately equal to 12R, it is determined that a binding abnormality occurs between the third circuit board and the fourth circuit board;

[0195] Step n: if the first resistance value is approximately equal to 13R, it is determined that the first circuit board, the third circuit board and the fourth circuit board have binding abnormalities;

[0196] Step o: If the first resistance value is approximately equal to 14R, it is determined that the second circuit board, the third circuit board, and the fourth circuit board have binding abnormalities;

[0197] Step p: If the first resistance value is approximately equal to 15R, it is determined that binding anomalies occur in all circuit boards.

[0198] By using the display device of the embodiment of the present application, the corresponding relationship between the resistance value and the circuit board binding detection result can be obtained by calculation, so that the binding abnormality detection result of each circuit board can be determined by the first resistance value, thereby improving the detection efficiency of the display device.

[0199] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium, (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid-state drive Solid State Disk (SSD)), etc.

[0200] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0201] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the method embodiment, since it is basically similar to the display device embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0202] The above description is only a preferred embodiment of the present application and is not intended to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. A display device, characterized in that: The display device includes at least two circuit boards and at least two reference resistors; Each of the circuit boards is connected in parallel with at least one of the reference resistors, and the reference resistors connected in parallel with the circuit boards are different; The reference resistors are connected in series, one end of a third series circuit formed by the reference resistors is connected to a first test point, and the other end of the third series circuit is connected to a second test point; The resistance value of the reference resistor is much greater than the binding resistance of the circuit board.

2. The display device according to claim 1, characterized in that For any circuit board among the circuit boards, the binding resistors in the circuit board are connected in series, and a reference resistor is connected in parallel to the series circuit formed by the binding resistors in the circuit board.

3. The display device according to claim 1, characterized in that For any of the circuit boards, the binding resistors on one side of the circuit board are connected in series to form a first series circuit, and the binding resistors on the other side of the circuit board are connected in series to form a second series circuit. The first series circuit is connected in parallel with a reference resistor, and the second series circuit is connected in parallel with a reference resistor, and the reference resistors in parallel with the first series circuit and the second series circuit are different.

4. The display device according to claim 1, characterized in that For a first type of circuit board in each of the circuit boards, each binding resistor in the first type of circuit board is connected in series, and a reference resistor is connected in parallel to the series circuit formed by each binding resistor in the circuit board; For the second type of circuit boards in each of the circuit boards, the binding resistors on one side of the second type of circuit boards are connected in series to form a first series circuit, and the binding resistors on the other side of the second circuit boards are connected in series to form a second series circuit. The first series circuit is connected in parallel with a reference resistor, and the second series circuit is connected in parallel with a reference resistor, and the reference resistors in parallel with the first series circuit and the second series circuit are different.

5. The display device according to any one of claims 2 to 4, characterized in that: Each of the reference resistors is a resistor with the same resistance value.

6. The display device according to any one of claims 2 to 4, characterized in that: Each of the reference resistors has a different resistance value.

7. The display device according to claim 6, characterized in that In order from one end to the other end of the third series circuit, the resistance of each reference resistor in the third series circuit is twice the resistance of the previous reference resistor.

8. The display device according to claim 1, characterized in that The display device further includes: a detection module, the detection module connecting the first test point and the second test point; The detection module is used to obtain a first resistance value between the first test point and the second test point, and determine a binding abnormality detection result of each of the circuit boards according to the first resistance value.

9. The display device according to claim 8, characterized in that The detection module is specifically used to: obtain a correspondence between a predetermined resistance value and a circuit board binding detection result; and search the circuit board binding detection result corresponding to the first resistance value in the correspondence as a binding abnormality detection result of each circuit board.

10. The display device according to claim 8 or 9, characterized in that: The at least two circuit boards are a first circuit board, a second circuit board, a third circuit board, and a fourth circuit board; the at least two reference resistors are a first reference resistor, a second reference resistor, a third reference resistor, and a fourth reference resistor; The first circuit board is connected in parallel with the first reference resistor, the second circuit board is connected in parallel with the second reference resistor, the third circuit board is connected in parallel with the third reference resistor, and the fourth circuit board is connected in parallel with the fourth reference resistor; The resistance values ​​of the first reference resistor, the second reference resistor, the third reference resistor, and the fourth reference resistor are all R; the resistance values ​​of the first circuit board, the second circuit board, the third circuit board, and the fourth circuit board are all 4R bond ; The detection module is specifically used to: if the first resistance value is approximately equal to 4*4R bond , it is determined that all the circuit boards are bound normally; If the first resistance value is approximately equal to R, it is determined that a binding abnormality occurs in one of the circuit boards; If the first resistance value is approximately equal to 2R, it is determined that two circuit boards in each of the circuit boards have a binding abnormality; If the first resistance value is approximately equal to 3R, it is determined that three of the circuit boards have binding abnormalities; If the first resistance value is approximately equal to 4R, it is determined that binding abnormality occurs in each of the circuit boards.

11. The display device according to claim 8 or 9, characterized in that: The at least two circuit boards are a first circuit board, a second circuit board, a third circuit board, and a fourth circuit board; the at least two reference resistors are a first reference resistor, a second reference resistor, a third reference resistor, and a fourth reference resistor; The first circuit board is connected in parallel with the first reference resistor, the second circuit board is connected in parallel with the second reference resistor, the third circuit board is connected in parallel with the third reference resistor, and the fourth circuit board is connected in parallel with the fourth reference resistor; The first reference resistor is R, the second reference resistor is 2R, the third reference resistor is 4R, and the fourth reference resistor is 8R; the resistance values ​​of the first circuit board, the second circuit board, the third circuit board, and the fourth circuit board are all 4R bond ; The detection module is specifically used to: if the first resistance value is approximately equal to 4*4R bond , it is determined that all the circuit boards are bound normally; If the first resistance value is approximately equal to R, it is determined that a binding abnormality occurs in the first circuit board; If the first resistance value is approximately equal to 2R, it is determined that a binding abnormality occurs in the second circuit board; If the first resistance value is approximately equal to 4R, it is determined that a binding abnormality occurs in the third circuit board; If the first resistance value is approximately equal to 8R, it is determined that a binding abnormality occurs in the fourth circuit board; If the first resistance value is approximately equal to 3R, it is determined that a binding abnormality occurs between the first circuit board and the second circuit board; If the first resistance value is approximately equal to 5R, it is determined that a binding abnormality occurs between the first circuit board and the third circuit board; If the first resistance value is approximately equal to 6R, it is determined that a binding abnormality occurs between the second circuit board and the third circuit board; If the first resistance value is approximately equal to 7R, it is determined that a binding abnormality occurs among the first circuit board, the second circuit board, and the third circuit board; If the first resistance value is approximately equal to 9R, it is determined that a binding abnormality occurs between the first circuit board and the fourth circuit board; If the first resistance value is approximately equal to 10R, it is determined that a binding abnormality occurs between the second circuit board and the fourth circuit board; If the first resistance value is approximately equal to 11R, it is determined that a binding abnormality occurs among the first circuit board, the second circuit board, and the fourth circuit board; If the first resistance value is approximately equal to 12R, it is determined that a binding abnormality occurs between the third circuit board and the fourth circuit board; If the first resistance value is approximately equal to 13R, it is determined that a binding abnormality occurs among the first circuit board, the third circuit board, and the fourth circuit board; If the first resistance value is approximately equal to 14R, it is determined that a binding abnormality occurs among the second circuit board, the third circuit board, and the fourth circuit board; If the first resistance value is approximately equal to 15R, it is determined that all the circuit boards have binding abnormalities.

12. A display device detection method, characterized in that: The method is applied to the display device according to any one of claims 1 to 11, and the method comprises: Obtaining a first resistance value between the first test point and the second test point; The binding abnormality detection result of each circuit board is determined according to the first resistance value.

13. The method according to claim 12, characterized in that The determining the binding abnormality detection result of each circuit board according to the first resistance value includes: Obtaining a correspondence between a predetermined resistance value and a circuit board binding test result; The circuit board binding detection result corresponding to the first resistance value is searched in the corresponding relationship as the binding abnormality detection result of each circuit board.

14. The method according to claim 12, characterized in that The display device includes at least two circuit boards and at least two reference resistors; the at least two circuit boards are a first circuit board, a second circuit board, a third circuit board, and a fourth circuit board; the at least two reference resistors are a first reference resistor, a second reference resistor, a third reference resistor, and a fourth reference resistor; The first circuit board is connected in parallel with the first reference resistor, the second circuit board is connected in parallel with the second reference resistor, the third circuit board is connected in parallel with the third reference resistor, and the fourth circuit board is connected in parallel with the fourth reference resistor; The resistance values ​​of the first reference resistor, the second reference resistor, the third reference resistor, and the fourth reference resistor are all R; the resistance values ​​of the first circuit board, the second circuit board, the third circuit board, and the fourth circuit board are all 4R bond ; The determining the binding abnormality detection result of each circuit board according to the first resistance value includes: If the first resistance value is approximately equal to 4*4R bond , it is determined that all the circuit boards are bound normally; If the first resistance value is approximately equal to R, it is determined that a binding abnormality occurs in one of the circuit boards; If the first resistance value is approximately equal to 2R, it is determined that two circuit boards in each of the circuit boards have a binding abnormality; If the first resistance value is approximately equal to 3R, it is determined that three of the circuit boards have binding abnormalities; If the first resistance value is approximately equal to 4R, it is determined that binding abnormality occurs in each of the circuit boards.

15. The method according to claim 12, characterized in that The display device includes at least two circuit boards and at least two reference resistors; the at least two circuit boards are a first circuit board, a second circuit board, a third circuit board, and a fourth circuit board; the at least two reference resistors are a first reference resistor, a second reference resistor, a third reference resistor, and a fourth reference resistor; The first circuit board is connected in parallel with the first reference resistor, the second circuit board is connected in parallel with the second reference resistor, the third circuit board is connected in parallel with the third reference resistor, and the fourth circuit board is connected in parallel with the fourth reference resistor; The first reference resistor is R, the second reference resistor is 2R, the third reference resistor is 4R, and the fourth reference resistor is 8R; the resistance values ​​of the first circuit board, the second circuit board, the third circuit board, and the fourth circuit board are all 4R bond ; The determining the binding abnormality detection result of each circuit board according to the first resistance value includes: If the first resistance value is approximately equal to 4*4R bond , it is determined that all the circuit boards are bound normally; If the first resistance value is approximately equal to R, it is determined that a binding abnormality occurs in the first circuit board; If the first resistance value is approximately equal to 2R, it is determined that a binding abnormality occurs in the second circuit board; If the first resistance value is approximately equal to 4R, it is determined that a binding abnormality occurs in the third circuit board; If the first resistance value is approximately equal to 8R, it is determined that a binding abnormality occurs in the fourth circuit board; If the first resistance value is approximately equal to 3R, it is determined that a binding abnormality occurs between the first circuit board and the second circuit board; If the first resistance value is approximately equal to 5R, it is determined that a binding abnormality occurs between the first circuit board and the third circuit board; If the first resistance value is approximately equal to 6R, it is determined that a binding abnormality occurs between the second circuit board and the third circuit board; If the first resistance value is approximately equal to 7R, it is determined that a binding abnormality occurs among the first circuit board, the second circuit board, and the third circuit board; If the first resistance value is approximately equal to 9R, it is determined that a binding abnormality occurs between the first circuit board and the fourth circuit board; If the first resistance value is approximately equal to 10R, it is determined that a binding abnormality occurs between the second circuit board and the fourth circuit board; If the first resistance value is approximately equal to 11R, it is determined that a binding abnormality occurs among the first circuit board, the second circuit board, and the fourth circuit board; If the first resistance value is approximately equal to 12R, it is determined that a binding abnormality occurs between the third circuit board and the fourth circuit board; If the first resistance value is approximately equal to 13R, it is determined that a binding abnormality occurs among the first circuit board, the third circuit board, and the fourth circuit board; If the first resistance value is approximately equal to 14R, it is determined that a binding abnormality occurs among the second circuit board, the third circuit board, and the fourth circuit board; If the first resistance value is approximately equal to 15R, it is determined that all the circuit boards have binding abnormalities.

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