Power supply device of display panel, detection method of power supply circuit and mobile terminal

Abstract

This application relates to a power supply device for a display panel, a detection method for the power supply circuit, and a mobile terminal. The power supply device for the display panel includes: a signal adjustment circuit, an IC bonding circuit, a connection module, and multiple data lines. One end of each data line is connected to the output terminal of the signal adjustment circuit, and the other end of each data line is sequentially connected to the IC bonding circuit, the connection module, and a display area in the display panel. The IC bonding circuit includes at least two switches, each positioned between adjacent data lines. When a switch is on, two adjacent data lines are short-circuited. If neither data line is broken, the display state of the pixel corresponding to that data line changes; if a data line is broken, the display state of the pixel corresponding to that data line does not change, thereby detecting the continuity of the data lines between the IC bonding circuit and the CT circuit.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a power supply device for a display panel, a detection method for the power supply circuit, and a mobile terminal. Background Technology

[0002] The power supply for the display panel includes an AT circuit, an IC bonding circuit, an electrostatic discharge (ESD) protection circuit, a current transformer (CT) circuit, and a bending area. These circuits or areas are connected via data cables. Because the electrostatic current flowing through the data cables at the edges is relatively large, breakage is a common problem.

[0003] In related technologies, the continuity of data lines is tested by lighting up the screen. However, since the signal for lighting up the screen originates from the CT circuit, passes through the bend area, and finally reaches the display area in the display panel to illuminate the screen, it is difficult to detect the continuity of the data lines between the IC bonding circuit and the CT circuit. Summary of the Invention

[0004] Therefore, it is necessary to provide a power supply device for a display panel, a power supply circuit detection method, and a mobile terminal that can detect the continuity of the Data line between the IC bonding circuit and the CT circuit, in order to address the above-mentioned technical problems.

[0005] In a first aspect, this application provides a power supply device for a display panel, the power supply device comprising: a signal adjustment circuit, an IC bonding circuit, a connection module, and multiple data lines; one end of each of the multiple data lines is connected to the output terminal of the signal adjustment circuit, and the other end of each of the multiple data lines is sequentially connected to the IC bonding circuit, the connection module, and the display area in the display panel;

[0006] The IC bonding circuit includes at least two switches, each of which is disposed between adjacent data lines in the IC bonding circuit.

[0007] In one embodiment, the IC bonding circuit includes a first switch and a second switch; the first switch is disposed between adjacent data lines in an edge region on one side of the IC bonding circuit, and the second switch is disposed between adjacent data lines in an edge region on the other side of the IC bonding circuit.

[0008] In one embodiment, the switch is a semiconductor switch.

[0009] In one embodiment, the semiconductor switch has a first interlayer dielectric (ILD) via, a second ILD via, a third ILD via, and a fourth ILD via on its source and drain terminals, and a fifth ILD via on its gate terminal; the semiconductor switch is connected to the adjacent data line through the first ILD via, the second ILD via, the third ILD via, and the fourth ILD via, and the semiconductor switch is connected to voltage through the fifth ILD via.

[0010] In one embodiment, the semiconductor switch has a cutoff voltage of 7V and a turn-on voltage of -7V.

[0011] In one embodiment, the connection module includes an ESD circuit, a CT circuit, and a bending area; the other ends of the multiple data lines are sequentially connected to the IC bonding circuit, the ESD circuit, the CT circuit, the bending area, and the display area in the display panel.

[0012] Secondly, this application also provides a mobile terminal, including a power supply device and a display panel as described in the first aspect.

[0013] Thirdly, this application also provides a method for detecting a power supply circuit, the method being applied to the power supply device as described in the first aspect, the method comprising:

[0014] Turn on the target switch in the IC bonding circuit and determine the target data line connected to the target switch;

[0015] Detect the display status of the pixels corresponding to the target data line within the display area;

[0016] The detection result for the target data line is determined based on the displayed status.

[0017] In one embodiment, determining the detection result of the target data line based on the display state includes:

[0018] If the display state of the pixel corresponding to the target data line changes, the detection result is determined to be that the target data line is in a normal connection state.

[0019] If the display state of the pixel corresponding to the target data line does not change, then the detection result is determined to be that the target data line is in an abnormal connection state.

[0020] In one embodiment, determining that the target data line is in a normal connection state if the display state of the pixel corresponding to the target data line changes includes:

[0021] If the display state of the pixel corresponding to the target data line changes and the display brightness is within the preset brightness range, then the detection result is determined to be that the target data line is in a normal connection state.

[0022] If the display state of the pixel corresponding to the target data line changes and the display brightness is not within the preset brightness range, then the detection result is determined to be that the target data line is in an abnormal connection state.

[0023] The aforementioned power supply device for the display panel, the detection method for the power supply circuit, and the mobile terminal, wherein the power supply device for the display panel includes: a signal conditioning circuit, an IC bonding circuit, a connection module, and multiple data lines; one end of each of the multiple data lines is connected to the output terminal of the signal conditioning circuit, and the other end of each of the multiple data lines is sequentially connected to the IC bonding circuit, the connection module, and the display area in the display panel; wherein, the IC bonding circuit includes at least two switches, each switch being disposed between adjacent data lines in the IC bonding circuit. When the switch is turned on, two adjacent data lines are short-circuited. If neither data line is broken, the display state of the pixel corresponding to the data line changes; if the data line is broken, the display state of the pixel corresponding to the data line does not change, thereby detecting the continuity or disconnection of the data lines between the IC bonding circuit and the CT circuit. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments of this application or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A schematic diagram of a power supply device for a traditional display panel;

[0026] Figure 2 This is a schematic diagram of the power supply device for the display panel in one embodiment;

[0027] Figure 3 This is a schematic diagram of data lines and pixels in one embodiment;

[0028] Figure 4 This is a schematic diagram of the power supply device for the display panel in another embodiment;

[0029] Figure 5 This is a schematic diagram of the switch structure in one embodiment;

[0030] Figure 6 This is a schematic diagram of the power supply device for the display panel in another embodiment;

[0031] Figure 7 This is a flowchart illustrating a detection method for a power supply circuit in one embodiment;

[0032] Figure 8 This is a flowchart illustrating the detection method for the power supply circuit in another embodiment;

[0033] Figure 9 This is a flowchart illustrating the detection method for the power supply circuit in another embodiment;

[0034] Figure 10 This is a flowchart illustrating the detection method for the power supply circuit in another embodiment;

[0035] Explanation of reference numerals in the attached figures:

[0036] Power supply unit 01; Display area 02; Signal adjustment circuit 10;

[0037] IC bonding circuit 20; Connection module 30; Data line 40;

[0038] Switch 50; First switch 501; Second switch 502;

[0039] First ILD hole 5001; Second ILD hole 5002; Third ILD hole 5003;

[0040] Fourth ILD hole 5004; Fifth ILD hole 5005; ESD circuit 301;

[0041] CT circuit 302; Bending area 303. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0044] In the accompanying drawings, for clarity, the relative dimensions of elements, layers, and regions may be exaggerated and / or simplified. Spatial relative terms such as “below,” “under,” “lower,” “below,” “above,” and “upper” may be used herein for ease of explanation to describe the relationship of one element or feature illustrated in the figures to another element(s). It will be understood that, in addition to the orientation depicted in the figures, spatial relative terms are intended to include different orientations of the device in use or operation. For example, if the device in the figures is flipped, an element described as “below,” “below,” or “below” other elements or features will subsequently be oriented “above” other elements or features. Thus, the exemplary terms “below” and “below” can include both the above and below orientations. The device may be otherwise oriented (e.g., rotated 90 degrees or according to other orientations), and the spatial relative descriptors used herein should be interpreted accordingly.

[0045] It is understood that the terms "first," "second," etc., used herein may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of this application, a first resistor may be referred to as a second resistor, and similarly, a second resistor may be referred to as a first resistor. Both the first resistor and the second resistor are resistors, but they are not the same resistor.

[0046] It is understood that when a component or layer is referred to as being "on," "connected to," or "coupled" to another component or layer, it can be directly on, directly connected to, or directly coupled to the other component or layer, or there can be one or more intermediate components or layers. Furthermore, it will also be understood that when a component or layer is referred to as being "between" two components or layers, it can be the only component or layer between the two components or layers, or there can be one or more intermediate components or layers.

[0047] It is understood that "at least one" means one or more, and "multiple" means two or more. "At least a part of an element" means part or all of an element. When used herein, the singular forms "a," "an," and "the" may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms "comprising / including" or "having," etc., specify the presence of the stated features, integrals, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, integrals, steps, operations, components, parts, or combinations thereof. Meanwhile, the term "and / or" as used in this specification includes any and all combinations of the associated listed items.

[0048] First, before introducing the technical solutions of the embodiments of this disclosure in detail, the technical background or technical evolution on which the embodiments of this disclosure are based will be introduced. The screen of a terminal or other device can be illuminated by methods such as screen illumination or module illumination, for example... Figure 1 As shown, the power supply circuit structure of the lower bezel of the screen includes, in sequence: AT circuit, IC bonding circuit, ESD circuit, CT circuit, and bending area. In the test scenario, the screen is illuminated by lighting up the screen itself; in the usage scenario, the screen is illuminated by lighting up the modules. During screen illumination, the Data signal originates from the CT circuit, passes through the bending area, and finally reaches the display area, illuminating the screen. During module illumination, the Data signal originates from the IC bonding circuit, passes through the ESD circuit, CT circuit, and bending area, and finally reaches the display area, illuminating the screen. Therefore, if the Data line is broken between the CT circuit and the IC bonding circuit, the Data signal does not flow through this location, making it difficult to detect the continuity of the data line between the IC bonding circuit and the CT circuit in the test scenario.

[0049] In one embodiment, such as Figure 2 As shown, a power supply device 01 for a display panel is provided, including: a signal conditioning circuit 10, an IC bonding circuit 20, a connection module 30, and multiple data lines 40; one end of each of the multiple data lines 40 is connected to the output terminal of the signal conditioning circuit 10, and the other end of each of the multiple data lines 40 is sequentially connected to the IC bonding circuit 20, the connection module 30, and the display area 02 in the display panel; wherein, the IC bonding circuit 20 includes at least two switches 50, and each switch 50 is disposed between adjacent data lines 40 in the IC bonding circuit 20.

[0050] Among them, the signal adjustment circuit 10 is an AT circuit, which refers to the active matrix circuit used to control the pixel dot matrix in the display panel, including thin film transistors (TFTs), capacitors, scan lines and data lines 40, etc. The driving circuit of a single pixel is usually composed of several TFTs and a capacitor; the IC bonding circuit 20 refers to the circuit that uses bonding technology to connect the internal circuit of the chip to the package pins or circuit board, which can ensure the reliability of the electrical connection and improve the corrosion resistance, shock resistance and stability of the product; the data line 40 can be represented as a Data line, which is a cable for transmitting data and / or charging.

[0051] In the embodiments of this application, such as Figure 2As shown, multiple data lines 40 pass through the power supply device 01 of the display panel. One end of each data line 40 is connected to the output terminal of the signal adjustment circuit 10, and the other end of each data line 40 is sequentially connected to the IC bonding circuit 20, the connection module 30, and the display area 02 in the display panel, thereby transmitting the signal to light up the display area 02 sequentially from the signal adjustment circuit 10, the IC bonding circuit 20, and the connection module 30 to the display area 02 of the display panel.

[0052] In this embodiment, the IC bonding circuit 20 includes at least two switches 50. The switches 50 are positioned between two adjacent data lines 40 and are used to control whether the two adjacent data lines 40 are conducting or operating independently. Conducting means that the two adjacent data lines 40 are short-circuited. When testing the continuity of the data lines 40, the switches 50 are turned on, causing the two adjacent data lines 40 to short-circuit. The voltages of the two adjacent data lines 40 influence each other, thereby affecting the light emission of the two sets of pixels corresponding to the two data lines 40. For example, as... Figure 3 As shown, the two adjacent data lines 40 are Data1 and Data2. Data1 corresponds to the green pixel group, and Data2 corresponds to the red and blue pixel group. The operating voltage of each pixel group is 3V. Assuming that when the two data lines 40 work independently, the voltage of Data1 is 7V and the voltage of Data2 is 3V, then the green pixel group is off, and the red and blue pixel group emits light normally. When Data1 and Data2 are on, if there are no breaks in either Data1 or Data2, then the voltage of Data1 decreases, the green pixel group is dimly lit, and the voltage of Data2 increases, the red and blue pixel group dims. If at least one of Data1 or Data2 has a break, then Data1 and Data2 do not affect each other, and the illumination of the green and red pixel groups remains unchanged.

[0053] Optionally, the IC bonding circuit 20 may include multiple switches 50. Switches 50 can be positioned between any two adjacent data lines 40 to control the conduction or independent operation of any two adjacent data lines 40. Optionally, the switch 50 can be any type of switch such as a relay, vacuum tube switch, or field-effect transistor switch.

[0054] The power supply device for the aforementioned display panel includes: a signal conditioning circuit, an IC bonding circuit, a connection module, and multiple data lines. One end of each data line is connected to the output of the signal conditioning circuit, and the other end of each data line is sequentially connected to the IC bonding circuit, the connection module, and the display area in the display panel. The IC bonding circuit includes at least two switches, each positioned between adjacent data lines. When a switch is on, two adjacent data lines are short-circuited. If neither data line is broken, the display state of the pixel corresponding to that data line changes; if a data line is broken, the display state of the pixel corresponding to that data line does not change, thus detecting the continuity of the data lines between the IC bonding circuit and the CT circuit.

[0055] In one embodiment, such as Figure 4 As shown, the IC bonding circuit 20 includes a first switch 501 and a second switch 502; the first switch 501 is disposed between adjacent data lines 40 in the edge region on one side of the IC bonding circuit 20, and the second switch 502 is disposed between adjacent data lines 40 in the edge region on the other side of the IC bonding circuit 20.

[0056] In this embodiment, because the electrostatic current through the data line 40 at the edge is larger, it is prone to breakage, while the electrostatic current through the data line 40 at the center is smaller, making it less prone to electrostatic problems. Therefore, switches are provided at the left and right edges of the IC bonding circuit 20, respectively. Figure 2 As shown, the first switch 501 is disposed between adjacent data lines 40 in the edge region on one side of the IC bonding circuit 20. The second switch 502 is disposed between adjacent data lines 40 in the edge region on the other side of the IC bonding circuit 20.

[0057] Optionally, switch 50 is a semiconductor switch, with its source and drain electrodes being P-type doped silicon (P-Si) and its gate electrode being molybdenum (Mo). The source and drain electrodes of the first switch 501 are connected to adjacent data lines 40 in the edge region of the IC bonding circuit 20 on one side, and the gate electrode of the first switch 501 is connected to the power supply. The source and drain electrodes of the second switch 502 are connected to adjacent data lines 40 in the edge region of the IC bonding circuit 20 on the other side, and the gate electrode of the first switch 501 is connected to the power supply.

[0058] For example, such as Figure 5As shown, the semiconductor switch 50 has a first interlayer dielectric (ILD) via 5001, a second ILD via 5002, a third ILD via 5003, and a fourth ILD via 5004 on its source and drain terminals, and a fifth ILD via 5005 on its gate terminal. The semiconductor switch 50 is connected to adjacent data lines 40 through the first ILD via 5001, the second ILD via 5002, the third ILD via 5003, and the fourth ILD via 5004, and is connected to a voltage source through the fifth ILD via 5005. The semiconductor switch 50 is connected to one data line 40 through the first ILD via 5001 and the second ILD via 5002, to another adjacent data line 40 through the third ILD via 5003 and the fourth ILD via 5004, and is connected to a power source through the fifth ILD via 5005. The power source can be the terminal's internal power source or a separately connected external power source.

[0059] In this embodiment, the semiconductor switch 50 has the characteristics of high-level cutoff and low-level conduction. Optionally, the cutoff voltage of the semiconductor switch 50 is 7V and the conduction voltage of the semiconductor switch 50 is -7V.

[0060] The power supply device provided in this application embodiment has a first switch on one side edge of the IC bonding circuit and a second switch on the other side edge. By controlling the conduction and disconnection of the first switch, the on / off status of the two data lines on one side edge is determined, and by controlling the conduction and disconnection of the second switch, the on / off status of the two data lines on the other side edge is determined.

[0061] In one embodiment, such as Figure 6 As shown, the connection module 30 includes an ESD circuit 301, a CT circuit, and a bending area 303; the other ends of the multiple data lines 40 are sequentially connected to the IC bonding circuit 20, the ESD circuit 301, the CT circuit, the bending area 303, and the display area 02 in the display panel.

[0062] Among them, the ESD circuit 301 is an electrostatic discharge protection circuit. Since electrostatic discharge usually has instantaneous high voltage, it can damage semiconductor devices in electronic equipment. To avoid such damage, the ESD circuit 301 is added to the power supply; the current transformer (CT) circuit is a circuit that converts a large primary current into a small secondary current based on the principle of electromagnetic induction, thereby measuring, protecting and controlling it; the bending area 303 bends or folds the display screen without losing display quality.

[0063] In this embodiment, the data line 40 is sequentially connected to the signal conditioning circuit 10, the IC bonding circuit 20, the ESD circuit 301, the CT circuit 302, the bending area 303, and the display area 02 in the display panel, so that the current and / or signal sequentially pass through the signal conditioning circuit 10, the IC bonding circuit 20, the ESD circuit 301, the CT circuit, and the bending area 303 to reach the display area 02 in the display panel.

[0064] The power supply device provided in this application embodiment includes a connection module comprising an ESD circuit, a CT circuit, and a bending area. The ESD circuit, CT circuit, and bending area in the connection module cooperate with the signal adjustment circuit, the IC bonding circuit, and the display area in the display panel to realize the display function of the terminal.

[0065] In one embodiment, a mobile terminal is provided, including a power supply device and a display panel as described in the above embodiments.

[0066] This embodiment does not limit the type of mobile terminal. Furthermore, the structure and working principle of the power supply device included in the mobile terminal provided in this embodiment are described in detail in the above embodiments, and will not be repeated here.

[0067] In one embodiment, such as Figure 7 As shown, a method for detecting a power supply circuit is provided, including:

[0068] S201 turns on the target switch in the IC bonding circuit and identifies the target data line connected to the target switch.

[0069] In this embodiment of the application, the IC bonding circuit includes at least two switches, each of which is connected to two adjacent data lines. Based on the current detection requirements, a target switch is determined from the at least two switches, and the two data lines connected to the target switch are determined as target data lines.

[0070] S202, detect the display status of the pixels corresponding to the target data line within the display area.

[0071] In this embodiment of the application, the display area includes multiple pixels, each pixel corresponding to a data line. Based on the correspondence between the data line and the pixel, the pixel corresponding to the target data line is determined. Furthermore, a preset detection component can be used to detect the display status of the pixel corresponding to the target data line.

[0072] Optionally, the display state of a pixel can be whether the pixel emits light, or the display state of a pixel can be the brightness of the pixel's light emission.

[0073] S203, determine the detection result of the target data cable based on the display status.

[0074] The detection results of the target data line are used to characterize the connection status of the target data line.

[0075] In this embodiment, the detection result of the target data line is determined based on the display state of the corresponding pixel of the target data line. Optionally, a correspondence between the display state and the connection state can be pre-formed, so as to determine the connection state of the target data line based on the display result and form the detection result of the target data line based on the connection state.

[0076] In the above-described power supply circuit detection method, the target switch in the IC bonding circuit is turned on, and the target data line connected to the target switch is identified; the display status of the pixel corresponding to the target data line in the display area is detected; and the detection result of the target data line is determined based on the display status. Turning on the target switch in the IC bonding circuit short-circuits two adjacent target data lines, thereby determining the detection result of the target data line based on the display status of the pixel corresponding to the target data line, and obtaining the continuity status of the data line.

[0077] In one embodiment, one implementation of S203 above is provided, such as... Figure 8 As shown, the above "determining the detection result of the target data cable based on the display status" includes:

[0078] S301, if the display state of the corresponding pixel of the target data line changes, the detection result is determined to be that the target data line is in a normal connection state.

[0079] S302, if the display state of the corresponding pixel of the target data line does not change, the detection result is determined to be that the target data line is in an abnormal connection state.

[0080] In this embodiment of the application, when testing the continuity of the data lines, the switch is turned on, causing two adjacent data lines to short-circuit each other. The voltages of the two adjacent data lines affect each other, thereby affecting the light emission of the two sets of pixels corresponding to the two data lines. For example, as shown... Figure 3 As shown, the two adjacent data lines are Data1 and Data2. Data1 corresponds to the green pixel group, and Data2 corresponds to the red and blue pixel group. The operating voltage of each pixel group is 3V. Assuming that when the two data lines work independently, the voltage of Data1 is 7V and the voltage of Data2 is 3V, then the green pixel group is off, and the red and blue pixel group illuminates normally. When Data1 and Data2 are on, if neither Data1 nor Data2 has a broken wire, then the voltage of Data1 decreases, the green pixel group is dimly lit, and the voltage of Data2 increases, the red and blue pixel group dims. If at least one of Data1 or Data2 has a broken wire, then Data1 and Data2 do not affect each other, and the illumination of the green and red pixel groups remains unchanged.

[0081] As another alternative implementation method, such as Figure 9 As shown, the above statement "If the display state of the corresponding pixel of the target data line changes, then the detection result is determined to be that the target data line is in a normal connection state" includes:

[0082] S401, if the display state of the corresponding pixel of the target data line changes and the display brightness is within the preset brightness range, then the detection result is determined to be that the target data line is in a normal connection state.

[0083] S402, if the display state of the corresponding pixel of the target data line changes and the display brightness is not within the preset brightness range, then the detection result is determined to be that the target data line is in an abnormal connection state.

[0084] Optionally, based on historical testing data, the highest and lowest brightness values ​​of the pixels corresponding to the data line in a normal connection state during the testing process can be determined. A brightness range can then be preset based on these highest and lowest values. If the displayed brightness falls within the preset range, the test result is determined to be that the target data line is in a normal connection state. If the displayed brightness does not fall within the preset range, the data line connection is abnormal, and the test result is determined to be that the target data line is in an abnormal connection state.

[0085] The power supply circuit detection method provided in this application embodiment ensures the accuracy of the detection results based on the principle that the voltages of two normally connected data lines affect each other when they are short-circuited, and whether the display state of the corresponding pixel of the target data line has changed.

[0086] In summary, based on all the above embodiments, this application also provides a method for detecting a power supply circuit, such as... Figure 10 As shown, the method includes:

[0087] S1, turns on the target switch in the IC bonding circuit and identifies the target data line connected to the target switch;

[0088] S2, detect the display status of the pixels corresponding to the target data line within the display area;

[0089] S3. If the display state of the corresponding pixel of the target data line changes and the display brightness is within the preset brightness range, then the detection result is determined to be that the target data line is in a normal connection state.

[0090] S4. If the display state of the corresponding pixel of the target data line changes and the display brightness is not within the preset brightness range, the detection result is determined to be that the target data line is in an abnormal connection state.

[0091] S5. If the display state of the corresponding pixel of the target data line does not change, the detection result is determined to be that the target data line is in an abnormal connection state.

[0092] In the above-described power supply circuit detection method, the target switch in the IC bonding circuit is turned on, and the target data line connected to the target switch is identified; the display status of the pixel corresponding to the target data line in the display area is detected; and the detection result of the target data line is determined based on the display status. Turning on the target switch in the IC bonding circuit short-circuits two adjacent target data lines, thereby determining the detection result of the target data line based on the display status of the pixel corresponding to the target data line, and obtaining the continuity status of the data line.

[0093] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0094] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0095] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A power supply device for a display panel, characterized in that, The power supply device includes: a signal adjustment circuit, an IC bonding circuit, a connection module, and multiple data lines; one end of each of the multiple data lines is connected to the output terminal of the signal adjustment circuit, and the other end of each of the multiple data lines is sequentially connected to the IC bonding circuit, the connection module, and the display area in the display panel. The connection module includes an ESD circuit, a CT circuit, and a bending area; the other ends of the multiple data lines are sequentially connected to the IC bonding circuit, the ESD circuit, the CT circuit, the bending area, and the display area in the display panel. The IC bonding circuit includes at least two switches, each of which is disposed between adjacent data lines in the IC bonding circuit. The switches are used to control the conduction or independent operation of the two adjacent data lines. When testing the continuity of the data lines, the switches are turned on, causing the adjacent data lines to short-circuit with each other. The voltages of the adjacent data lines affect each other, thus affecting the light emission of the two sets of pixels corresponding to the adjacent data lines. If none of the adjacent data lines are broken, the display state of the corresponding pixel changes; if at least one of the adjacent data lines is broken, the display state of the corresponding pixel does not change; the continuity of the data lines between the IC bonding circuit and the CT circuit can be detected by observing whether the display state changes.

2. The power supply device according to claim 1, characterized by The IC bonding circuit includes a first switch and a second switch; the first switch is disposed between adjacent data lines in the edge region on one side of the IC bonding circuit, and the second switch is disposed between adjacent data lines in the edge region on the other side of the IC bonding circuit.

3. The power supply device according to claim 1 or 2, characterized by, The switch is a semiconductor switch.

4. The power supply device according to claim 3, wherein The semiconductor switch has a first ILD (interlayer dielectric) via, a second ILD via, a third ILD via, and a fourth ILD via on its source and drain terminals, and a fifth ILD via on its gate terminal; the semiconductor switch is connected to the adjacent data line through the first ILD via, the second ILD via, the third ILD via, and the fourth ILD via, and the semiconductor switch is connected to voltage through the fifth ILD via.

5. The power supply device according to claim 3, wherein The semiconductor switch has a cutoff voltage of 7V and a turn-on voltage of -7V.

6. The power supply device according to claim 1 or 2, wherein The switch is any one of a relay, a vacuum tube switch, or a field-effect transistor switch.

7. A mobile terminal, characterized in that, The mobile terminal includes the power supply device and display panel as described in claims 1-6.

8. A method for detecting a power supply circuit, characterized in that, The method is applied to the power supply device as described in claims 1-6, and the method includes: Turn on the target switch in the IC bonding circuit and determine the target data line connected to the target switch; Detect the display status of the pixels corresponding to the target data line within the display area; The detection result for the target data line is determined based on the displayed status.

9. The method of claim 8, wherein, Determining the detection result of the target data line based on the display status includes: If the display state of the pixel corresponding to the target data line changes, the detection result is determined to be that the target data line is in a normal connection state. If the display state of the pixel corresponding to the target data line does not change, then the detection result is determined to be that the target data line is in an abnormal connection state.

10. The method of claim 9, wherein, If the display state of the pixel corresponding to the target data line changes, the step of determining that the target data line is in a normal connection state includes: If the display state of the pixel corresponding to the target data line changes and the display brightness is within the preset brightness range, then the detection result is determined to be that the target data line is in a normal connection state. If the display state of the pixel corresponding to the target data line changes and the display brightness is not within the preset brightness range, then the detection result is determined to be that the target data line is in an abnormal connection state.

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