Detection device, display panel and display device

Abstract

The utility model provides a detection device, a display panel and a display device. The detection device is used for detecting to-be-tested data lines in a display panel and comprises a plurality of test lines and a plurality of short-circuiting bars. At least one of the plurality of test lines spans at least one of the plurality of short-circuiting bars and is electrically connected to other short-circuiting bars, the test lines are connected to corresponding data lines to be tested, the at least one test line is provided with at least two branch lines, the at least two branch lines are arranged on the corresponding short-circuiting bars in a crossing manner, and the at least two branch lines are electrically connected to the other short-circuiting bars. The plurality of short-circuiting bars are arranged in parallel and are arranged at intervals and separated from each other, and one end of each of the at least two branch lines can be respectively connected to one data line to be tested, or at least one short-circuiting bar is provided with a plurality of branch sections, the plurality of branch sections are arranged at intervals and separated from each other, and the at least one test line is arranged across the plurality of branch sections of the short-circuiting bar.

Description

Technical Field

[0001] This utility model relates to the field of liquid crystal displays, and more particularly to a detection device, as well as a display panel and display device equipped with the detection device. Background Technology

[0002] In the manufacturing process of liquid crystal display devices, in order to save costs and effectively control yield, an electrical test (CellVisual Test) needs to be performed on the array substrate before installing the driving circuit module on the liquid crystal display panel. This test is to detect array substrates that are not working properly, thereby eliminating defective products in time before subsequent processes and thus saving production costs.

[0003] One current method for testing array substrates involves using several shorting bars to short-circuit each signal line (data line or scan line) together, then inputting test signals to the thin-film transistor array through the shorting bars. After the test is completed, a laser is used to cut the connection between the shorting bars and each signal line in order to proceed with the next step of assembling the drive circuit module.

[0004] However, electrostatic discharge (ESD) often occurs during the manufacturing process of LCD panels. Furthermore, foreign objects such as dust are inevitably introduced during the panel manufacturing process, which can easily trigger arc discharge. This can damage some of the shorting bars, preventing the corresponding detection signals from being transmitted through the shorting bars when testing the array substrate. Consequently, circuit testing cannot be performed, making it impossible to determine whether there are defects in the array substrate, thus affecting the product yield.

[0005] For example, Figure 1 The present invention illustrates a testing device for a liquid crystal display panel according to an embodiment of the prior art. For current liquid crystal display panels, data lines in the display area are typically connected to a short-circuit bar via test lines for testing. When the test line crosses the short-circuit bar, arc discharge may occur due to ESD, foreign objects, or other reasons, resulting in a short circuit at the fault point S. This prevents the test line from obtaining the corresponding circuit's detection signal and transmitting it to the data lines in the display area, thus making it impossible to perform electrical testing and repair processes in the display area. Utility Model Content

[0006] This invention was made in view of the above-mentioned problems. Its purpose is to provide a detection device for a liquid crystal display panel that does not affect signal transmission even if an arc discharge occurs when the test lead crosses the short-circuit bar, as well as a display panel and display device equipped with the detection device.

[0007] One embodiment of this utility model provides a testing device for a liquid crystal display panel, which is used to test a data line under test within the display panel. The testing device includes multiple test lines and multiple shorting bars. At least one of the multiple test lines crosses at least one of the multiple shorting bars and is electrically connected to the other shorting bars. The test line is connected to the corresponding data line under test. The at least one test line has at least two branch lines. The at least two branch lines cross the corresponding shorting bars and are spaced apart from each other. One end of each of the at least two branch lines can be connected to a data line under test. Alternatively, at least one of the multiple shorting bars has multiple branch segments that are spaced apart from each other, and the at least one test line crosses the multiple branch segments of the shorting bar.

[0008] Preferably, in one embodiment, the plurality of test lines include a first test line and a second test line, and the plurality of shorting bars include a first shorting bar and a second shorting bar. One end of the first test line is directly connected to the first shorting bar, and the other end is connected to the data line to be tested. The second test line crosses the first shorting bar and one end is connected to the second shorting bar, and the other end is connected to the data line to be tested.

[0009] Preferably, in one embodiment, the second test line includes a first connection end, a second connection end, and a first branch line and a second branch line located between the first connection end and the second connection end, wherein the plurality of branch lines of the at least one test line are the first branch line and the second branch line.

[0010] Preferably, in one embodiment, the first branch line and the second branch line are arranged parallel to each other and spaced apart, the first branch line and the second branch line are arranged across the first shorting bar, the first connection end is connected to one of the data lines to be tested, and the second connection end is connected to the second shorting bar.

[0011] Preferably, in one embodiment, the first short-circuit bar includes a first connecting end, a second connecting end, and a first branch segment, a second branch segment, and a third branch segment located between the first connecting end and the second connecting end, wherein the plurality of branch segments of the short-circuit bar are the first branch segment, the second branch segment, and the third branch segment.

[0012] Preferably, in one embodiment, the first branch segment, the second branch segment, and the third branch segment are arranged parallel to each other and spaced apart, the second test line sequentially crosses the first branch segment, the second branch segment, and the third branch segment, and is connected to the second short-circuit bar, and the first connection end is connected to the first test line.

[0013] Preferably, in one embodiment, the two ends of the first branch segment, the second branch segment, and the third branch segment are respectively connected to the first connecting end and the second connecting end.

[0014] Preferably, in one embodiment, each of the plurality of test lines is electrically connected to the corresponding short-circuit bar via a connector, the connector having a plurality of transfer holes and a metal film covering the transfer holes.

[0015] One embodiment of the present invention provides a display panel, which includes: a plurality of data lines; a plurality of flip-chip films; and a detection device provided corresponding to each flip-chip film as described in any of the above embodiments.

[0016] One embodiment of the present invention provides a display device, which includes the display panel provided in the above embodiment.

[0017] According to the present invention, a detection device for a liquid crystal display panel is provided that will not affect signal transmission even if an arc discharge occurs when the test lead crosses the short-circuit bar, as well as a display panel and a display device equipped with the detection device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram illustrating a detection device involved in the prior art.

[0020] Figure 2 This is a schematic top view of the display panel of the first embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram illustrating the detection device involved in the first embodiment.

[0022] Figure 4 This is a schematic diagram illustrating a detection device related to a variation of the first embodiment.

[0023] Figure 5 This is a schematic diagram illustrating the detection device involved in the second embodiment.

[0024] Figure 6 This is a schematic diagram illustrating the detection device involved in a variation of the second embodiment. Detailed Implementation

[0025] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] The following disclosure provides numerous different embodiments for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0027] The following description, in conjunction with the accompanying drawings, details the detection device, display panel, and display device provided by this utility model.

[0028] First Embodiment

[0029] Figure 2 This is a top view schematic diagram showing the display panel 100 of the first embodiment. Figure 3 This is a top view schematic diagram showing the detection device 200A of the display panel 100.

[0030] In this invention, the display device (not shown) includes a display panel 100, a power module (not shown), and a support frame (not shown). The display panel 100 and the power module are fixed to the support frame. The power module provides power voltage to the display panel 100 for image display, and the support frame provides fixation and protection for the display panel and the power module. In other embodiments of this application, the display device 100 may not require a support frame, for example, as a portable electronic device such as a mobile phone or tablet computer.

[0031] like Figure 2 As shown, the display panel 100 includes a display area AA and a non-display area NAA surrounding the display area AA. The display area AA is provided with multiple parallel data lines D. In the non-display area NAA, multiple flip-chip films 20 are provided along the long side of the display area AA, and detection devices 200A are respectively connected to each flip-chip film 20.

[0032] The detection device 200A has multiple parallel shorting bars (see reference). Figure 3The device includes a shorting bar 10 and multiple test terminals 40. Furthermore, one end of each shorting bar is connected to a test terminal 40. During electrical testing, the same electrical test signal (e.g., the same voltage) is applied to the test terminals 40. This same applied electrical test signal flows into the shorting bar 10, causing the electrical test signal to be input to the data line D1, thus enabling electrical testing.

[0033] The testing device 200A also includes multiple test lines 30. In this embodiment, the connection between the multiple test lines 30 and the multiple shorting bars 10 adopts an odd-even wiring method, that is, two shorting bars are used. It is easy to understand that among the multiple test lines 30, one end of the odd-numbered test lines 30 is connected to one of the shorting bars 10, while one end of the even-numbered test lines 30 is connected to the other of the two shorting bars 10. Furthermore, the multiple test lines 30 are connected to multiple data lines D through sub-pixels. This allows the test signal to be connected to the display area AA, simulating a specific connection state of the internal circuitry of the display panel for specific testing. Additionally, for ease of explanation, Figure 2 Only two data lines are shown.

[0034] Specifically, the testing device 200A includes multiple shorting bars 10, multiple test leads 30, and multiple test terminals 40. For example... Figure 2 and Figure 3 As shown, the plurality of shorting bars 10 include a first shorting bar 11 and a second shorting bar 13. The plurality of test leads 30 include a first test lead 31 and a second test lead 33. The plurality of test terminals 40 include a first test terminal 41 and a second test terminal 43.

[0035] The second test line 33 includes a first connection terminal 331, a second connection terminal 333, and a first branch line 335 and a second branch line 337 located between the first connection terminal 331 and the second connection terminal 333.

[0036] One end of the first connection terminal 331 is connected to the second shorting bar 13, and the other end is connected to one end of the first branch line 335 and the second branch line 337. The first branch line 335 and the second branch line 337 are arranged across the first shorting bar 11, and are parallel to each other and spaced apart. The other end of the first branch line 335 and the second branch line 337 is connected to the second connection terminal 333, and the second connection terminal 333 is connected to the second data line D2. The first test line 31 is connected to the first data line D1.

[0037] The first shorting bar 11 connects to the first test line 31, which is an odd-numbered line, and is used to transmit a detection signal to the first data line D1 during testing. The second shorting bar 13 connects to the second test line 33, which is an even-numbered line, and is used to transmit a detection signal to the second data line D2 during testing. Furthermore, the first test line 31 is electrically connected to the first shorting bar 11 through multiple transfer holes 39, and the second test line 33 is electrically connected to the second shorting bar 13 through multiple transfer holes 39. Additionally, a metal film 50, such as an indium tin oxide (ITO) metal film, is covered on the multiple transfer holes 39 to allow the detection signal from the shorting bar 10 to be transmitted to the test line 30. Furthermore, in this invention, the transfer holes 39 and the metal film 50 are sometimes collectively referred to as the connecting part. In addition, in this invention, the connection method between the test line 30 and the shorting bar 10 is the same as described above, and will not be repeated below.

[0038] Furthermore, the first test line 31 is directly electrically connected to the first short-circuit bar 11, and the second test line 33 crosses the first short-circuit bar 11 and is electrically connected to the second short-circuit bar 13. At the point where the second test line 33 crosses the first short-circuit bar 11, the second test line 33 branches into a first branch line 335 and a second branch line 337.

[0039] like Figure 3 As shown, when an arc discharge occurs at the cross-line position of the first branch line 335 and the short-circuit bar 11, making it impossible to perform electrical testing on the second data line D2, the two ends of the first branch line 335 are cut off by laser cutting. The remaining second branch line 337 can then be used to continue transmitting the signal to the second data line D2, thereby ensuring that the operation of testing the second data line D2 can continue.

[0040] In this embodiment, an example is shown where the second test line 33 has two branch lines at the crossing position. However, the number of branch lines is not limited to this. Specifically, the number of branch lines can be determined based on the pin pitch of the flip-chip film 20 disposed within the display panel 100. For example, when space is sufficient, the minimum width and space of the pin pitch of the flip-chip film 20 can be determined based on the factory process capability, thereby branching into two or more (≥2) branch lines. For example, when the pin pitch is 39µm, and the factory process capability is: minimum width 5µm, minimum space 5µm, the number of branch lines n is based on the formula: 5n + 5(n + 1) = 39, which gives n = ⌊3.4⌋ = 3, thus three branch lines can be used.

[0041] The detection device in this embodiment is simple and easy to implement. When an arc discharge occurs and an open circuit is caused by the test line crossing the short-circuit bar, the branch line with the fault point S can be directly cut by laser without affecting the connection of other branch lines and signal transmission, which effectively improves the detection efficiency and product yield.

[0042] Second Embodiment

[0043] based on Figure 4 Other embodiments of this utility model will be described in detail below. Furthermore, for ease of explanation, components with the same function as those described in the above embodiments will be labeled with the same reference numerals and will not be described again.

[0044] Figure 4 This is a schematic top view of the detection device 200B involved in Embodiment 2.

[0045] The detection device 200B in this embodiment differs from the first embodiment in that the connection between the shorting bars and the test lines 30 adopts an RGB wiring method, that is, three shorting bars are used. It is easy to understand that among the multiple test lines 30, one end of the test line 30 connecting the red pixel is connected to one of the shorting bars, one end of the test line 30 connecting the green pixel is connected to another shorting bar, and one end of the test line 30 connecting the blue pixel is connected to the remaining one of the three shorting bars.

[0046] like Figure 4 As shown, the shorting bar 10 includes a first shorting bar 11 that is electrically connected to a first test line 31 connected to the red sub-pixel R, a second shorting bar 13 that is electrically connected to a second test line 33 connected to the green sub-pixel G, and a third shorting bar 15 that is electrically connected to a third test line 35 connected to the blue sub-pixel B.

[0047] Specifically, the first test line 31 is directly electrically connected to the first shorting bar 11. The second test line 33 crosses the first shorting bar 11 and is electrically connected to the second shorting bar 13. Where the second test line 33 crosses the first shorting bar 11, it branches into two branch lines. Furthermore, the third test line 35 crosses both the first shorting bar 11 and the second shorting bar 13 and is electrically connected to the third shorting bar 15. The third test line 35 includes a first connecting end 351, a second connecting end 354, a first branch line 352 and a second branch line 353 located between the first connecting end 351 and the second connecting end 354, a third connecting end 357, a third branch line 355 located between the second connecting end 354 and the third connecting end 357, and a fourth branch line 356.

[0048] Furthermore, one end of the first connection terminal 351 is connected to the third shorting bar 15, and the other end is connected to one end of the first branch line 352 and the second branch line 353. The first branch line 352 and the second branch line 353 are arranged across the second shorting bar 13 and are parallel to each other and spaced apart. The other end of the first branch line 352 and the second branch line 353 is connected to the second connection terminal 354. The second connection terminal 354 is also connected to one end of the third branch line 355 and the fourth branch line 356. The third branch line 355 and the fourth branch line 356 are arranged across the first shorting bar 11 and are parallel to each other and spaced apart. The other end of the third branch line 355 and the fourth branch line 356 is connected to the third connection terminal 357, and the third connection terminal 357 is also connected to the third data line (not shown).

[0049] like Figure 4 As shown, when an arc discharge occurs at the crossing position between the fourth branch line 356 and the first short-circuit bar 11, and at the crossing position between the first branch line 352 and the second short-circuit bar 13, causing a fault, the two ends of the first branch line 352 and the fourth branch line 356 are cut off by laser cutting. The remaining second branch line 353 and the third branch line 355 can be used to continue transmitting the signal to the third data line, thereby ensuring that the operation of detecting the third data line continues.

[0050] The detection device in this embodiment has a simple structure and is easy to implement. Similarly, when an arc discharge occurs and an open circuit is caused by the test line crossing the short-circuit bar, the branch line with the fault point S can be directly cut off by laser without affecting the connection of other branch lines and signal transmission, which effectively improves detection efficiency and product yield.

[0051] Third Embodiment

[0052] based on Figure 5 Other embodiments of this utility model will be described in detail below. Furthermore, for ease of explanation, components with the same function as those described in the above embodiments will be labeled with the same reference numerals and will not be described again.

[0053] Figure 5 This is a schematic top view of the detection device 300A according to the third embodiment.

[0054] The difference between the detection device 300A in this embodiment and the detection device 200A in the first embodiment is that a branch segment is generated on the short-circuit bar 10 and the number of branch segments is 3.

[0055] Specifically, similarly, the shorting bar 10 includes a first shorting bar 11 and a second shorting bar 13 arranged in parallel with each other. The first shorting bar 11 is connected to the first test line 31, which is an odd-numbered column, and is used to transmit the detection signal to the first test line 31 during detection. The second shorting bar 13 is connected to the second test line 33, which is an even-numbered column, and is used to transmit the detection signal to the second test line 33 during detection.

[0056] Furthermore, the first test lead 31 is directly electrically connected to the first short-circuit bar 11, and the second test lead 33 crosses the first short-circuit bar 11 and is electrically connected to the second short-circuit bar 13. Specifically, the first short-circuit bar 11 includes a first connecting end 111, a second connecting end 113, and a first branch segment 115, a second branch segment 117, and a third branch segment 119 located between the first connecting end 111 and the second connecting end 113. The first branch segment 115, the second branch segment 117, and the third branch segment 119 are arranged parallel to each other and spaced apart, with a first gap 112 formed between the first branch segment 115 and the second branch segment 117, and a second gap 116 formed between the second branch segment 117 and the third branch segment 119. The second test lead 33 crosses the first branch segment 115, the first gap 112, the second branch segment 117, the second gap 116, and the third branch segment 119 in sequence and is then electrically connected to the second short-circuit bar 13. In addition, the first connection terminal 111 is also connected to the first test line 31, and the second connection terminal 113 is also connected to the test terminal 40.

[0057] In addition, such as Figure 5 As shown, for example, when an arc discharge occurs at the cross-line position between the second test line 33 and the first branch segment 115, making it impossible to perform electrical testing on the second data line D2, the two ends of the first branch segment 115 can be cut off by laser cutting. The remaining second branch segment 117 and third branch segment 119 can be used to continue transmitting signals to the second data line D2, thereby ensuring that the operation of testing the second data line D2 can continue.

[0058] The detection device in this embodiment is simple and easy to implement. When an arc discharge occurs and an open circuit is caused by the test line crossing the short-circuit bar, the faulty branch segment can be directly cut off by laser without affecting the connection of other branch segments and signal transmission, which effectively improves detection efficiency and product yield.

[0059] Fourth embodiment

[0060] based on Figure 6 Other embodiments of this utility model will be described in detail below. Furthermore, for ease of explanation, components with the same function as those described in the above embodiments will be labeled with the same reference numerals and will not be described again.

[0061] Figure 6This is a schematic top view of the detection device 300B according to the fourth embodiment.

[0062] The detection device 300B in the fourth embodiment differs from the detection device 300A in the third embodiment in that the connection between the shorting bar 10 and the test line 30 adopts an RGB wiring method. Similarly, the shorting bar 10 includes a first shorting bar 11 electrically connected to the first test line 31 connected to the red pixel R, a second shorting bar 13 electrically connected to the second test line 33 connected to the green pixel G, and a third shorting bar 15 electrically connected to the third test line 35 connected to the blue pixel B.

[0063] like Figure 6 As shown, the first test lead 31 is directly electrically connected to the first shorting bar 11. The second test lead 33 crosses the first shorting bar 11 and is electrically connected to the second shorting bar 13. The third test lead 35 crosses the first shorting bar 11 and the second shorting bar 13 respectively and is electrically connected to the third shorting bar 15.

[0064] Specifically, the first shorting bar 11 includes at least a first connecting end 111, a second connecting end 113, three branch segments (not shown) located between the first connecting end 111 and the second connecting end 113, a third connecting end 114, and first branch segments 115, second branch segments 117, and third branch segments 119 located between the second connecting end 111 and the third connecting end 113. The second shorting bar 13 includes a first connecting end 131, a second connecting end 133, and fourth branch segments 135, fifth branch segments 137, and sixth branch segments 139 located between the first connecting end 131 and the second connecting end 133. Furthermore, the first connecting end 131 is connected to the second test lead 33, and the second connecting end 133 is connected to the test terminal 40. The third test lead 35 crosses the first branch segment 115, the second branch segment 117, the third branch segment 119, the fourth branch segment 135, the fifth branch segment 137, and the sixth branch segment 139 respectively before being electrically connected to the third shorting bar 15. A gap is formed between each pair of adjacent branch segments.

[0065] In addition, such as Figure 6 As shown, for example, when an arc discharge occurs at the cross-line position of the third test line 35 and the fourth branch segment 135 and the sixth branch segment 139, causing a fault and making it impossible to perform electrical testing on the third data line, the two ends of the fourth branch segment 135 and the sixth branch segment 139 can be cut off by laser cutting. The remaining fifth branch segment 137 can then be used to continue transmitting signals to the third data line, thereby ensuring that the operation of testing the third data line can continue.

[0066] The detection device in this embodiment is simple and easy to implement. It can also directly cut the faulty branch segment by laser when the test line crosses the short-circuit bar and an arc discharge occurs, causing an open circuit, without affecting the connection of other branch segments and signal transmission, thus effectively improving detection efficiency and product yield.

[0067] Furthermore, this invention illustrates detection devices employing both odd-even and RGB wiring methods. However, it is not limited to this; depending on the design space of the shorting bars, a combination of odd-even and RGB wiring methods can be used. For example, the shorting bars 10 can be designed to include six shorting bars arranged in red odd, red even, green odd, green even, blue odd, and blue even configurations. Specifically, the shorting bar group includes (not shown) a first shorting bar electrically connected to the test lines (odd-numbered) connected to the red pixel R, a second shorting bar electrically connected to the test lines (even-numbered) connected to the red pixel R, a third shorting bar electrically connected to the test lines (odd-numbered) connected to the green pixel G, a fourth shorting bar electrically connected to the test lines (even-numbered) connected to the green pixel G, a fifth shorting bar electrically connected to the test lines (odd-numbered) connected to the blue pixel B, and a sixth shorting bar electrically connected to the test lines (even-numbered) connected to the blue pixel B.

[0068] In this embodiment, the testing device includes multiple branch lines or branch segments, which are connected to one or more data lines. When testing the data line, the test is performed through multiple branch lines or branch segments. Therefore, even if one branch line or branch segment fails, the data line can still be tested through other branch lines or branch segments to ensure the correctness and efficiency of the data line test.

[0069] Furthermore, in this disclosure, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0070] All aspects of the embodiments disclosed herein are illustrative and should not be construed as limiting. Therefore, the technical scope of this utility model is not limited to the above embodiments, but is defined based on the claims. Furthermore, all modifications are included within the meaning and scope equivalent to the claims.

Claims

1. A testing device for testing a data line under test within a display panel, characterized in that, The detection device includes multiple test leads and multiple short-circuit rods. At least one of the plurality of test lines crosses at least one of the plurality of shorting bars and is electrically connected to the other shorting bars. The test line is connected to the corresponding data line to be tested. Wherein, the at least one test line has at least two branch lines, the at least two branch lines are arranged across the corresponding shorting bar and are spaced apart from each other, and one end of each of the at least two branch lines can be connected to one of the data lines under test, or In this configuration, at least one of the plurality of short-circuit bars is provided with a plurality of branch segments, the plurality of branch segments being spaced apart from each other, and the at least one test line spanning the plurality of branch segments of the short-circuit bar.

2. The detection device according to claim 1, characterized in that, The multiple test lines include a first test line and a second test line. The plurality of short-circuit bars includes a first short-circuit bar and a second short-circuit bar. One end of the first test lead is directly connected to the first shorting bar, and the other end is connected to the data line to be tested. The second test line crosses the first shorting bar and is connected at one end to the second shorting bar, and at the other end to the data line to be tested.

3. The detection device according to claim 2, characterized in that, The second test line includes a first connection terminal, a second connection terminal, and a first branch line and a second branch line located between the first connection terminal and the second connection terminal. The plurality of branch lines of the at least one test line are the first branch line and the second branch line.

4. The detection device according to claim 3, characterized in that, The first branch line and the second branch line are parallel to each other and spaced apart. The first branch line and the second branch line are positioned to cross the first short-circuit bar. The first connection end is connected to one of the data lines under test. The second connection end is connected to the second short-circuit bar.

5. The detection device according to claim 2, characterized in that, The first short-circuit bar includes a first connecting end, a second connecting end, and a first branch segment, a second branch segment, and a third branch segment located between the first connecting end and the second connecting end. The multiple branch segments of the short-circuit bar are the first branch segment, the second branch segment, and the third branch segment.

6. The detection device according to claim 5, characterized in that, The first branch segment, the second branch segment, and the third branch segment are arranged parallel to each other and spaced apart. The second test line sequentially crosses the first branch segment, the second branch segment, and the third branch segment, and connects to the second shorting bar. The first connection terminal is connected to the first test lead.

7. The detection device according to claim 5, characterized in that, The two ends of the first branch segment, the second branch segment, and the third branch segment are respectively connected to the first connection end and the second connection end.

8. The detection device according to claim 1, characterized in that, Each of the multiple test leads is electrically connected to the corresponding short-circuit bar via a connector. The connecting part has multiple transfer holes and a metal film covering the transfer holes.

9. A display panel, characterized in that, include: Multiple data cables; Multiple flip-chip films; as well as The detection device according to any one of claims 1-8 is provided for each flip-chip thin film.

10. A display device, characterized in that, Includes the display panel as described in claim 9.

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