Broken line repairing circuit, display panel and broken line repairing method

Abstract

The invention provides a broken line repairing circuit, a display panel and a broken line repairing method, and belongs to the technical field of display equipment. The broken line repairing circuit comprises an RLC series resonance circuit, and the RLC series resonance circuit can work in an under-damping state or a critical damping state by setting three RLC values. Therefore, the data voltage and the rising rate of the data voltage can be improved by utilizing a voltage peak caused by energy exchange when the RLC series resonance circuit exchanges high and low levels of the data voltage, so that the pixel brightness of the repaired data line is compensated. Meanwhile, by adjusting the resistance value of an adjustable resistor in the RLC series resonance circuit, the pull-up amplitude and the pull-up rate of the data voltage applied to the repair data line can be correspondingly adjusted, and the pixel brightness of the repair data line and the pixel brightness of the non-repair data line can be adjusted to be the same; therefore, the problem of non-uniform display caused by resistance-capacitance load difference between the repaired data line and the non-repaired data line can be effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of display devices, and in particular to a broken line repair circuit, a display panel, and a broken line repair method. Background Art

[0002] During the panel manufacturing process, data lines often break inside the panel due to some undesirable reasons. When the panel is powered on, obvious bright lines (or dark lines) will appear.

[0003] To solve the above problem, the related art provides a technical solution, which is to pull the data drive output channel of the corresponding broken line to the printed circuit board (PCB) by laser welding, and then pass it through the test line reserved inside the panel to the other side of the panel after passing through the operational amplifier (OP). The test line and the other section of the broken line are then connected by laser welding. The display of the other section of the broken line can be charged through the test line. In this way, the defects of the line can be converted into point defects. Usually, point defects do not have a significant impact on the display quality of the liquid crystal display. However, this repair method significantly increases the wiring length of the data line due to the need to pull the line to the printed circuit board, and the resistance and capacitance load (RC loading) of the line increases. Thus, during the display process, the resistance and capacitance load corresponding to the repaired data line is different from the resistance and capacitance load corresponding to the intact data line, resulting in the problem of uneven display brightness. Summary of the Invention

[0004] The main purpose of the embodiments of the present application is to provide a line break repair circuit, display panel, and line break repair method. The circuit aims to adjust the adjustable resistance value of the RLC series resonant circuit according to the RC load of the repaired data line, thereby adjusting the magnitude and rate of increase in the data voltage applied to the repaired data line, so that the pixel brightness of the repaired data line is the same as that of the unrepaired data line, thereby effectively improving the display unevenness caused by the difference in RC load between the repaired and unrepaired data lines.

[0005] To achieve the above-mentioned objectives, a first aspect of an embodiment of the present application provides a broken line repair circuit, which is applied to a display panel. The display panel includes:

[0006] a plurality of data lines, wherein data lines formed by repairing broken data lines among the plurality of data lines are repaired data lines, and data lines other than the repaired data lines among the plurality of data lines are non-repaired data lines;

[0007] The line break repair circuit comprises:

[0008] an RLC series resonant circuit, the RLC series resonant circuit being configured to operate in an underdamped state or a critically damped state; an input end of the RLC series resonant circuit being connected to a first end of the repair data line to receive a data voltage applied to the repair data line, and an output end of the RLC series resonant circuit being connected to a second end of the repair data line;

[0009] The RLC series resonant circuit includes an adjustable resistor, the resistance of which can be adjusted accordingly according to the resistive-capacitive load corresponding to the repaired data line to adjust the pull-up amplitude and pull-up rate of the data voltage applied to the repaired data line, so that the pixel brightness of the repaired data line is the same as the pixel brightness of the non-repaired data line.

[0010] In one embodiment of the present application, the adjustable resistor is a MOS transistor variable resistor, and the RLC series resonant circuit further includes a first inductor and a first capacitor; a first end of the first inductor is used to connect to the first end of the repair data line to receive a data voltage applied to the repair data line, a second end of the first inductor is connected to the source of the MOS transistor variable resistor, a drain of the MOS transistor variable resistor is connected to the first end of the first capacitor, a gate of the MOS transistor variable resistor is used to access a gate-source threshold voltage, a second end of the first capacitor is grounded, and a second end of the first inductor is also used to connect to the second end of the repair data line;

[0011] Among them, the gate-source threshold voltage can be adjusted accordingly according to the resistance-capacitance load corresponding to the repaired data line to adjust the resistance value of the MOS tube variable resistor so that the pixel brightness of the repaired data line is the same as the pixel brightness of the non-repaired data line.

[0012] In one embodiment of the present application, the line break repair circuit further includes a switch circuit, wherein the switch circuit and the RLC series resonant circuit are connected in series between the first end of the repair data line and the second end of the repair data line;

[0013] The switch circuit is used to access a second light-enabling signal waveform and control whether a data voltage is input to the second end of the repair data line based on the second light-enabling signal waveform, wherein the second light-enabling signal waveform is different from the first light-enabling signal waveform used to control the light-emitting duration of the pixel under normal display conditions;

[0014] The duty cycle of the second enable light-emitting signal waveform can be adjusted accordingly according to the resistive-capacitive load corresponding to the repair data line to adjust the pixel light-emitting duration of the repair data line so that the pixel brightness of the repair data line is the same as the pixel brightness of the non-repair data line.

[0015] In one embodiment of the present application, the switch circuit includes a first triode, a second triode, a third triode and a MOS transistor;

[0016] The emitter of the first transistor is used to connect to the first end of the repair data line, the base of the first transistor is connected to the input end of the RLC series resonant circuit, the collector of the first transistor is connected to the collector of the second transistor, the emitter of the second transistor is grounded, the base of the second transistor is connected to the drain of the MOS transistor, the gate of the MOS transistor is used to access the second enable light-emitting signal waveform, the source of the MOS transistor is connected between the base of the first transistor and the input end of the RLC series resonant circuit, the collector of the first transistor is also connected to the base of the third transistor, the emitter of the third transistor is grounded, the collector of the third transistor is connected to the output end of the RLC series resonant circuit and then connected to the second end of the repair data line.

[0017] In one embodiment of the present application, the line break repair circuit further includes a switch circuit, wherein the switch circuit and the RLC series resonant circuit are connected in parallel between the first end of the repair data line and the second end of the repair data line;

[0018] The switch circuit is used to access a second light-enabling signal waveform and control whether a data voltage is input to the second end of the repair data line based on the second light-enabling signal waveform, wherein the second light-enabling signal waveform is different from the first light-enabling signal waveform used to control the light-emitting duration of the pixel under normal display conditions;

[0019] The duty cycle of the second enable light-emitting signal waveform can be adjusted accordingly according to the resistive-capacitive load corresponding to the repair data line to adjust the pixel light-emitting duration of the repair data line so that the pixel brightness of the repair data line is the same as the pixel brightness of the non-repair data line.

[0020] To achieve the above-mentioned objective, a second aspect of an embodiment of the present application provides a display panel, comprising:

[0021] a display area and a non-display area surrounding the display area, wherein the display area is provided with a plurality of data lines arranged at intervals, wherein data lines repaired from broken data lines are repaired data lines, and data lines other than the repaired data lines among the plurality of data lines are non-repaired data lines;

[0022] In the broken line repair circuit described in any embodiment of the present application, the input end of the RLC series resonant circuit is used to connect the first end of the repair data line; the output end of the RLC series resonant circuit is used to connect the second end of the repair data line to compensate the repair data line.

[0023] In one embodiment of the present application, the non-display area is provided with a first repair line and a second repair line, the first repair line is connected to the first end of the repair data line, and the second repair line is connected to the second end of the repair data line;

[0024] The input end of the RLC series resonant circuit is connected to the first end of the repair data line through the first repair line;

[0025] The output end of the RLC series resonant circuit is connected to the second end of the repair data line through the second repair line.

[0026] To achieve the above-mentioned object, a third aspect of the embodiments of the present application provides a disconnection repair method, which is performed based on the disconnection repair circuit described in any embodiment of the present application. The method includes:

[0027] According to the resistive-capacitive load corresponding to the repair data line connected to the broken line repair circuit, the resistance value of the adjustable resistor in the RLC series resonant circuit is adjusted to adjust the pull-up amplitude and pull-up rate of the data voltage applied to the repair data line, so that the pixel brightness of the repair data line is the same as the pixel brightness of the non-repaired data line.

[0028] In one embodiment of the present application, according to the resistive and capacitive load corresponding to the repair data line connected to the broken line repair circuit, the resistance value of the adjustable resistor and / or the duty cycle of the second enable light-emitting signal waveform are adjusted to adjust the pull-up amplitude and pull-up rate of the data voltage applied to the repair data line and / or the pixel light-emitting duration of the repair data line, so that the pixel brightness of the repair data line is the same as the pixel brightness of the non-repair data line.

[0029] In one embodiment of the present application, each repair data line is connected to a corresponding line repair circuit, and adjusting the resistance value of the adjustable resistor and the duty cycle of the second enabling light-emitting signal waveform according to the resistance-capacitance load corresponding to the repair data line connected to the line repair circuit includes:

[0030] determining a target resistance value of the adjustable resistor according to a maximum resistance-capacitance load of the repair data line connected to the line break repair circuit, and adjusting the resistance value of the adjustable resistor to the target resistance value;

[0031] Under the condition that the resistance of the adjustable resistor is the target resistance, the duty cycle of the corresponding second enable light-emitting signal waveform is adjusted according to the difference between the resistive-capacitive load of the repaired data line and the maximum resistive-capacitive load, so that the pixel brightness of the repaired data line is the same as the pixel brightness of the non-repaired data line.

[0032] In the technical solution provided in the embodiment of the present application, the line break repair circuit includes an RLC series resonant circuit. By setting the three RLC values, the RLC series resonant circuit can be operated in an underdamped state or a critical damped state. Thus, the voltage spike caused by the energy exchange when the data voltage is high and low levels in the RLC series resonant circuit can be used to increase the data voltage and the rate of rise of the data voltage to compensate for the pixel brightness of the repaired data line. At the same time, by adjusting the value of the adjustable resistor in the RLC series resonant circuit, the pull-up amplitude and pull-up rate of the data voltage applied to the repaired data line can be adjusted accordingly, so that the repaired data lines with different resistance and capacitance loads correspond to different data voltage pull-up amplitudes and pull-up rates, and the pixel brightness of the repaired data line can be effectively adjusted to be the same as the pixel brightness of the non-repaired data line, thereby effectively improving the display unevenness problem caused by the difference in resistance and capacitance loads between the repaired data line and the non-repaired data line. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a wiring diagram of a disconnection repair circuit provided by related technology.

[0034] Figure 2 This is a first circuit diagram of a disconnection repair circuit provided in one embodiment of the present application.

[0035] Figure 3 This is a second circuit diagram of a disconnection repair circuit provided in one embodiment of the present application.

[0036] Figure 4 This is a schematic diagram of the working circuit of the broken wire repair circuit in the initial stage.

[0037] Figure 5 FIG. 1 is a schematic diagram of the working circuit of the line break repair circuit in the first compensation stage.

[0038] Figure 6 This is a schematic diagram of the working circuit of the line break repair circuit in the second compensation stage.

[0039] Figure 7 FIG. 1 is a schematic diagram of a working circuit of a line break repair circuit in the third compensation stage.

[0040] Figure 8 This is a schematic diagram of the working circuit of the disconnection repair circuit in the reset stage.

[0041] Figure 9 is a schematic diagram of the second light-enabling signal waveform EM2.

[0042] Figure 10 This is a third circuit diagram of the disconnection repair circuit provided in one embodiment of the present application.

[0043] Figure 11 is a schematic diagram of a display panel provided in one embodiment of the present application.

[0044] Description of reference numerals:

[0045] Repair data line 11; non-repair data line 12; chip-on-film (COF) 20; operational amplifier 10; display area 10; non-display area 20; first repair line 211; second repair line 212; broken line repair circuit 40; RLC series resonant circuit 41; switch circuit 42. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0047] It should be noted that although the device schematics illustrate functional module divisions and the flowcharts illustrate logical sequences, in certain circumstances, the steps illustrated or described may be performed in a sequence that differs from the module divisions in the device or the sequence in the flowcharts. The terms "first," "second," and the like in the specification, claims, and drawings are used to distinguish similar objects and are not necessarily used to describe a specific sequence or precedence.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein are for the purpose of describing the embodiments of this application only and are not intended to limit this application.

[0049] During the manufacturing process of display panels, due to process reasons, the data lines inside the panel will inevitably break, resulting in poor contact, increased impedance, and then leading to black lines, weak lines, etc. In order to solve the data line break defect, the data line break is usually repaired. The existing repair method requires pulling the wire to the printed circuit board, which significantly increases the routing length of the data line and increases the resistance and capacitance load (RC loading) of the line. Therefore, during the display process, due to the difference between the resistance and capacitance load corresponding to the repaired data line and the resistance and capacitance load corresponding to the non-repaired data line, the pixel brightness corresponding to the repaired data line and the pixel brightness corresponding to the non-repaired data line will be different, resulting in the problem of uneven display brightness.

[0050] Based on this, an embodiment of the present application provides a broken line repair circuit, which aims to adjust the adjustable resistance value of the RLC series resonant circuit according to the resistance and capacitance load of the repaired data line, and can adjust the pull-up amplitude and pull-up rate of the data voltage applied to the repaired data line, so that the pixel brightness of the repaired data line is the same as the pixel brightness of the non-repaired data line, thereby effectively improving the display unevenness problem caused by the difference in resistance and capacitance load between the repaired data line and the non-repaired data line.

[0051] Reference Figure 1 , Figure 1 This is a schematic diagram of the wiring of the disconnection repair circuit provided by the related technology. Figure 1 As shown, the display panel includes a repair data line 11 and a non-repair data line 12. The breakpoint of the repair data line 11 (BE in the figure) is A, so as to divide the repair data line 11 (BE in the figure) into a first segment BA and a second segment AE. At this time, one end of the first segment BA of the repair data line 11 (i.e., point B) is connected to the positive input terminal of the operational amplifier 10 through the chip-on-film (COF) 20. At the same time, the output terminal of the operational amplifier 10 is connected to one end of the second segment AE of the repair data line 11 (i.e., point E). Among them, the end of the repair data line 11 close to the signal input terminal, i.e. Figure 2 The signal of the first segment BA shown in FIG is directly provided by the source driver chip, that is, after the first segment BA of the repair data line 11 is connected to the positive input terminal of the operational amplifier 10, the first segment BA of the repair data line 11 can be directly driven. The sub-pixels in the area corresponding to the first segment BA of the repair data line 11 can display normally. The end of the repair data line 11 away from the signal input terminal, i.e. Figure 2 The signal of the second segment AE shown in FIG is generated after the signal output by the source driver chip passes through operational amplifier 10. That is, after the second segment AE of repaired data line 11 is connected to operational amplifier 10, operational amplifier 10 can drive the second segment AE of repaired data line 11. The sub-pixels in the area corresponding to the second segment AE of repaired data line 11 can also display normally, thereby achieving the effect of repairing repaired data line 11.

[0052] In an embodiment of the present application, the corresponding broken data line drive output channel is pulled to a printed circuit board (PCB) by laser welding, and after passing through an operational amplifier (OP), it is connected to the other side of the panel through a test line reserved inside the panel, and the test line is connected to the other section of the broken line by laser welding. The display of the other section of the broken line can be charged through the test line, so that the line defect can be turned into a point defect. Usually, point defects do not have a significant impact on the display quality of the liquid crystal display. However, this repair method significantly increases the routing length of the data line due to the need to pull the line to the printed circuit board, and the RC loading of the line increases. As a result, the RC loading of the repaired data line will be greater than the RC loading of other non-repaired data lines, which in turn causes the pixel brightness corresponding to the repaired data line to be different from the pixel brightness corresponding to the non-repaired data line, resulting in the problem of uneven display brightness.

[0053] Thus, an embodiment of the present application provides a line break repair circuit, comprising an RLC series resonant circuit. The input end of the RLC series resonant circuit is used to connect to the first end of the repair data line to receive a data voltage applied to the repair data line, and the output end of the RLC series resonant circuit is used to connect to the second end of the repair data line. Specifically, the input end of the RLC series resonant circuit can be connected to the first end of the broken data line via an input repair line (such as a first repair line), and the output end of the RLC series resonant circuit can be connected to the second end of the broken data line via an output repair line (such as a second repair line).

[0054] Among them, the RLC series resonant circuit is configured to operate in an underdamped state or a critical damped state. That is, by setting the three values ​​of the resistor R, the inductor L, and the capacitor C, the RLC series resonant circuit can be made to operate in an underdamped state or a critical damped state, so that the voltage spike caused by the energy exchange when the data voltage is high and low levels in the RLC series resonant circuit can be used to increase the data voltage and increase the rate of rise of the data voltage to compensate for the pixel brightness of the broken data line (i.e., the repaired data line). Compared with the solution of using an operational amplifier (OP) to repair the broken line in the related art, the embodiment of the present application uses an RLC series resonant circuit to repair the broken line, which does not require an operational amplifier chip and can reduce costs.

[0055] At the same time, the RLC series resonant circuit includes an adjustable resistor, the resistance of which can be adjusted according to the RC load corresponding to the repaired data line to adjust the rise amplitude and rise rate of the data voltage applied to the repaired data line, so that the pixel brightness of the repaired data line is the same as that of the non-repaired data line. In other words, by operating the RLC series resonant circuit in an underdamped state or a critical damped state, the data voltage applied to the repaired data line can be increased and the rise rate of the data voltage can be increased, thereby achieving the effect of repairing the broken line. However, considering that the broken data lines in the panel are located at different positions, the corresponding trace lengths of the repaired data lines are different, resulting in different RC loads corresponding to the repaired data lines. Therefore, if the rise amplitude and rise rate of the data voltage corresponding to the repaired data lines at different positions (with different RC loads) are the same, it is inevitable that the pixel brightness of some repaired data lines will be too bright, while the pixel brightness of some repaired data lines will be too dark. In other words, although the broken data lines can be repaired and displayed normally by operating the RLC series resonant circuit in an underdamped state or a critical damped state, the display brightness of the panel will be uneven. Therefore, the present embodiment further designs an RLC series resonant circuit including an adjustable resistor. By adjusting the value of the adjustable resistor, the magnitude and rate of increase of the data voltage applied to the repaired data line can be changed accordingly. That is, for repaired data lines at different locations (with different RC loads), by adjusting the adjustable resistor to corresponding different resistance values, the magnitude and rate of increase of the data voltage corresponding to the repaired data lines at different locations (with different RC loads) can be made different. This allows the pixel brightness of the repaired data line to be adjusted to be the same as the pixel brightness of the non-repaired data line, effectively improving the display unevenness problem caused by the difference in RC loads between the repaired and non-repaired data lines.

[0056] For example, two broken data lines, one A and one B, appear within a panel. After being repaired using a repair line, the corresponding trace of repaired data line A is shorter and has a smaller RC load due to its proximity to the driver end. Repaired data line B, however, is longer and has a larger RC load due to its proximity to the driver end. That is, the RC load of repaired data line A is smaller than that of repaired data line B, and the RC loads of both repaired data line A and repaired data line B are greater than those of the unrepaired data line. Repaired data line A and repaired data line B are each connected to an RLC series resonant circuit. Because the RC load of repaired data line A is smaller than that of repaired data line B, the adjustable resistor in the RLC series resonant circuit corresponding to repaired data line A has a larger resistance than that of the RLC series resonant circuit corresponding to repaired data line B. This allows the magnitude and rate of increase in the data voltage corresponding to repaired data line A to be smaller than those corresponding to repaired data line B, thereby adjusting the brightness of the pixels corresponding to repaired data lines A and B to the same brightness as the pixels of the unrepaired data line.

[0057] It is understandable that in the embodiment of the present application, the pixel brightness corresponding to each intact data line (ie, non-repaired data line) is considered to be the same.

[0058] Reference Figure 2 , Figure 2 This is a first circuit diagram of a line break repair circuit provided by an embodiment of the present application. Figure 2 As shown, the RLC series resonant circuit includes a first inductor L1, a MOS transistor variable resistor M1, and a first capacitor C1. The first end of the first inductor L1 is connected to the first end of the repair data line via an input repair line (repair in) to receive the data voltage Vdata applied to the repair data line. The second end of the first inductor L1 is connected to the source of the MOS transistor variable resistor M1, the drain of the MOS transistor variable resistor M1 is connected to the first end of the first capacitor C1, the gate of the MOS transistor variable resistor M1 is used to access the gate-source threshold voltage Vth, the second end of the first capacitor C1 is grounded, and the second end of the first inductor L1 is connected to the second end of the repair data line via an output repair line (repair out).

[0059] The gate-source threshold voltage Vth can be adjusted according to the RC load corresponding to the repaired data line to adjust the resistance of the MOS tube variable resistor M1 so that the pixel brightness of the repaired data line is the same as that of the non-repaired data line.

[0060] Reference Figure 2 The RLC series resonant circuit also includes a second capacitor C2 and a second resistor R2. The first end of the second capacitor C2 is connected to the first end of the first inductor L1, and the second end of the second capacitor C2 is grounded. The first end of the second resistor R2 is connected to the drain of the MOS transistor variable resistor M1, and the second end of the second resistor R2 is connected to the first end of the first capacitor C. The second capacitor C2 can provide filtering. The second resistor R2 is used for voltage division to prevent the MOS transistor variable resistor M1 from overheating and also provides a minimum impedance value.

[0061] In an embodiment of the present application, the disconnection repair circuit (i.e., the RLC series resonant circuit) can be electrically connected to the timing control module (TCON), that is, the timing control module provides a gate-source threshold voltage Vth for the gate of the MOS tube variable resistor M1, and the timing control module adjusts the magnitude of the gate-source threshold voltage Vth to achieve the adjustment of the resistance value of the MOS tube variable resistor M1.

[0062] When a MOS transistor satisfies the conditions VGS > Vth and VDS < (VGS - Vth), it enters the variable resistance region. At this point, the drain current (Id) and drain-source voltage (VDS) have an approximately linear relationship. The equivalent resistance Rds(on) in this region is controlled by the gate voltage VGS and the gate-source threshold voltage Vth. The MOS transistor only turns on and enters the variable resistance region when VGS exceeds Vth. Therefore, the gate-source threshold voltage Vth determines the minimum driving voltage threshold for the MOS transistor. At a fixed VGS, varying the gate-source threshold voltage Vth can change the resistance of the MOS transistor's variable resistor. For example, increasing Vth results in an increase in on-resistance at the same VGS.

[0063] For example, consider two broken data lines within a panel, one A and one B. After being repaired using a repair line, repaired data line A, being closer to the driver, has a shorter trace and a smaller RC load. Repaired data line B, being farther from the driver, has a longer trace and a larger RC load. This means the RC load of repaired data line A is smaller than that of repaired data line B, and both repaired data line A and repaired data line B have greater RC loads than the unrepaired data lines. The A repair data line and the B repair data line are respectively connected to an RLC series resonant circuit. Since the RC load of the A repair data line is smaller than the RC load of the B repair data line, the gate-to-ground gate-source threshold voltage Vth of the MOS transistor variable resistor M1 in the RLC series resonant circuit corresponding to the input A repair data line is controlled to be smaller than the gate-to-ground gate-source threshold voltage Vth of the MOS transistor variable resistor M1 in the RLC series resonant circuit corresponding to the input B repair data line. This allows the resistance value of the MOS transistor variable resistor M1 in the RLC series resonant circuit corresponding to the A repair data line to be greater than the resistance value of the MOS transistor variable resistor M1 in the RLC series resonant circuit corresponding to the B repair data line. This allows the pull-up amplitude and pull-up rate of the data voltage corresponding to the A repair data line to be smaller than the pull-up amplitude and pull-up rate of the data voltage corresponding to the B repair data line. This allows the brightness of the pixels corresponding to the A repair data line and the B repair data line to be adjusted to be the same as the brightness of the pixels of the non-repaired data line.

[0064] It should be noted that the smaller the adjustable resistance, the greater the corresponding data voltage pull-up amplitude and pull-up rate, and the larger the adjustable resistance, the smaller the corresponding data voltage pull-up amplitude and pull-up rate.

[0065] In some embodiments, the line break repair circuit further includes a switch circuit, wherein the switch circuit and the RLC series resonant circuit are connected in series between the first end of the repair data line and the second end of the repair data line. That is, the switch circuit and the RLC series resonant circuit are connected in series between the input repair line (repair in) and the output repair line (repair out).

[0066] The switching circuit is used to receive a second light-enabling signal waveform EM2 and, based on the second light-enabling signal waveform EM2, control whether a data voltage is input to the second end of the repair data line or not. The second light-enabling signal waveform EM2 is different from the first light-enabling signal waveform EM1, which is used to control the pixel light-emitting duration under normal display conditions. The pixel light-emitting duration is equal to the low-level duration of the first light-enabling signal waveform EM1. When the first light-enabling signal waveform EM1 is pulled low, the pixel begins to emit light, and the low-level duration determines the pixel light-emitting duration. Similarly, for the repair data line, the low-level duration of the second light-enabling signal waveform EM2 can determine the dwell time of the data voltage input to the repair data line, that is, the time during which the data voltage is input to the second end of the repair data line. This allows the pixel light-emitting duration of the repair data line to be adjusted.

[0067] The duty cycle of the second enabling light-emitting signal waveform EM2 can be adjusted based on the RC load corresponding to the repaired data line to adjust the duration of pixel illumination of the repaired data line, so that the pixel brightness of the repaired data line is the same as that of the non-repaired data line. That is, for repaired data lines with different RC loads, second enabling light-emitting signal waveforms EM2 with different duty cycles can be output accordingly. If the RC load of repaired data line A is smaller than that of repaired data line B, and the RC loads of repaired data line A and repaired data line B are both larger than those of the non-repaired data line, then the switching circuit corresponding to repaired data line A can be input with a second enabling light-emitting signal waveform EM2 with a smaller duty cycle; and the switching circuit corresponding to repaired data line B can be input with a second enabling light-emitting signal waveform EM2 with a larger duty cycle. This allows the pixel brightness corresponding to repaired data line A and repaired data line B to be adjusted to be the same as that of the non-repaired data line.

[0068] Reference Figure 3 , Figure 3 This is a second circuit diagram of a line break repair circuit provided by an embodiment of the present application. Figure 6 As shown, the line break repair circuit includes an RLC series resonant circuit and a switch circuit, wherein the switch circuit and the RLC series resonant circuit are connected in series between the first end and the second end of the repair data line. That is, the switch circuit and the RLC series resonant circuit are connected in series between the input repair line (repair in) and the output repair line (repair out).

[0069] The switching circuit includes a first transistor Q1, a second transistor Q2, a third transistor Q3, and a MOS transistor M2. The emitter of the first transistor Q1 is connected to the first end of the repair data line, that is, connected to the input end repair line (repair in). The base of the first transistor Q1 is connected to the input end of the RLC series resonant circuit. The collector of the first transistor Q1 is connected to the collector of the second transistor Q2. The emitter of the second transistor Q2 is grounded. The base of the second transistor Q2 is connected to the drain of the MOS transistor M2. The gate of the MOS transistor M2 is connected to the second enable light emission signal waveform EM2. The source of the MOS transistor M2 is connected between the base of the first transistor Q1 and the input end of the RLC series resonant circuit. The collector of the first transistor Q1 is also connected to the base of the third transistor Q3. The emitter of the third transistor Q3 is grounded. The collector of the third transistor Q3 is connected to the output end of the RLC series resonant circuit and then connected to the second end of the repair data line, that is, connected to the output end repair line (repair out).

[0070] Continue to refer to Figure 3 To ensure that each transistor in the switching circuit works effectively, the switching circuit also includes multiple resistors and multiple capacitors, such as resistors R1, R3, R4, R5, R6, R, R8, and R9, and capacitors C2, C3, and C5.

[0071] Reference Figure 4-Figure 9 ,The working process of the switching circuit includes multiple stages, Figure 4 This is a schematic diagram of the working circuit of the broken wire repair circuit in the initial stage. Figure 5 This is the working circuit diagram of the line break repair circuit in the first compensation stage. Figure 6 This is the working circuit diagram of the line break repair circuit in the second compensation stage. Figure 7 This is the working circuit diagram of the line break repair circuit in the third compensation stage. Figure 8 This is a schematic diagram of the working circuit of the disconnection repair circuit in the reset stage. Figure 9 Schematic diagram of the second enable light emitting signal waveform EM2. Figure 4 In the initial stage, the second light-enabling signal waveform EM2 is at a low level. At this time, the circuit does not form an effective loop, and the input data voltage Vdata is only used to charge the capacitor C3. Figure 5 In the first compensation stage, the second enable light-emitting signal waveform EM2 is at a high level. At this time, the MOS tube M2 is turned on, and the input data voltage Vdata and the voltage of the capacitor C3 are transmitted to the base of the second transistor Q2 through the resistors R1 and R3. Since the emitter of the second transistor Q2 is grounded GND, Vbe>0.7V, and the second transistor Q2 is turned on. At this time, the voltage at the base of the first transistor Q1 is Wherein, Vin is the data voltage Vdata. Figure 6In the second compensation stage, the first transistor Q1 corresponds to Since the first transistor Q1 is a PNP type BJT, the first transistor Q1 is saturated and turned on. Reference Figure 7 In the third compensation stage, the third transistor Q3 is saturated and turned on. At this time, the second enable light-emitting signal waveform EM2 becomes low, the MOS tube M2 is turned off, and the second transistor Q2 is turned off. Since the first transistor Q1 and the third transistor Q3 are saturated and continuously turned on, a path is formed between the Repair in and RLC series resonant circuit and the ground, the compensation circuit takes effect, and the output is Repair out. Figure 8 In the reset phase, the second enable light-emitting signal waveform EM2 changes from low to high again, and the MOS tube M2 is turned on. Similarly, the second transistor Q2 is turned on. At this time, Repair in is directly grounded from the second transistor Q2 without passing through the RLC series resonant circuit. Repair out has no output, and the circuit is reset. The voltage is maintained until the next time the second enable light-emitting signal waveform EM2 changes from low to high, and the cycle repeats.

[0072] It can be seen that the output or non-output of Repair out can be controlled by the second light-enabling signal waveform EM2. The waveform of the second light-enabling signal waveform EM2 corresponding to each stage is as follows: Figure 9 As shown, by adjusting the duty cycle of the second enable light-emitting signal waveform EM2, the light-emitting duration of the pixel corresponding to the repair data line can be adjusted. Furthermore, the second enable light-emitting signal waveform EM2 is distinct from the first enable light-emitting signal waveform EM1 within the same plane, allowing independent regulation of the repair data line without affecting the function of the first enable light-emitting signal waveform EM1.

[0073] Reference Figure 10 , Figure 10 This is a third circuit diagram of a line break repair circuit provided by an embodiment of the present application. Figure 10 As shown, the line break repair circuit includes an RLC series resonant circuit and a switch circuit. The switch circuit and the RLC series resonant circuit are connected in parallel between the first end and the second end of the repair data line. That is, the switch circuit and the RLC series resonant circuit are connected in parallel between the input repair line (repair in) and the output repair line (repair out). The circuit structure and operation of the switch circuit are consistent with those described above and will not be further described here.

[0074] Similarly, the switching circuit is configured to receive the second light-enabling signal waveform EM2 and, based on the second light-enabling signal waveform EM2, control whether a data voltage is input to the second end of the repair data line. The duty cycle of the second light-enabling signal waveform EM2 can be adjusted based on the RC load corresponding to the repair data line to adjust the duration of pixel illumination on the repair data line, ensuring that the brightness of the pixels on the repair data line is the same as that of the pixels on the unrepaired data line.

[0075] In one embodiment of the present application, referring to Figure 11 The present application also proposes a display panel, comprising a display area 10 and a non-display area 20 surrounding the display area 10, wherein the display area 10 is provided with a plurality of data lines arranged at intervals, wherein the data lines include a broken data line 11 and an intact data line 12. The display panel also includes a broken line repair circuit 40 provided in any embodiment of the present application, wherein the broken line repair circuit 40 includes an RLC series resonant circuit 41 and a switching circuit 42. The input end of the broken line repair circuit 40 is used to connect the first end of the broken data line 11 (i.e., point B in the figure); the output end of the broken line repair circuit 40 is used to connect the second end of the broken data line 11 (i.e., point E in the figure) to repair the broken data line 11. The connected and repaired broken data line 11 is a repaired data line.

[0076] In the embodiment of the present application, the display panel includes a broken line repair circuit 40, which can be connected to the broken line data line 11, so that the broken line data line 11 can be repaired. Since the RLC series resonant circuit 41 operates in an underdamped state or a critical damped state, the voltage spike caused by the energy exchange when the RLC series resonant circuit 41 switches between high and low levels of the data voltage can be used to increase the data voltage and increase the rate of rise of the data voltage to compensate for the pixel brightness of the repaired data line. At the same time, by adjusting the resistance value of the adjustable resistor in the RLC series resonant circuit 41, the pull-up amplitude and pull-up rate of the data voltage applied to the repaired data line can be adjusted accordingly, so that the repaired data lines with different resistance-capacitance loads correspond to different data voltage pull-up amplitudes and pull-up rates, and the pixel brightness of the repaired data line can be effectively adjusted to be the same as the pixel brightness of the non-repaired data line. The switching circuit 42 can control whether the second end of the repair data line has a data voltage input or no data voltage input based on the second enable light-emitting signal waveform EM2, thereby adjusting the resistance value of the adjustable resistor and the duty cycle of the second enable light-emitting signal waveform according to the resistance-capacitance load corresponding to the repair data line connected to the broken line repair circuit, and the pixel light-emitting duration of the repair data line can be adjusted accordingly, so that the pixel brightness of the repair data line is the same as the pixel brightness of the non-repair data line.

[0077] In one embodiment of the present application, referring to Figure 11The non-display area 20 is provided with a first repair line 211 (i.e., the input repair line repair in) and a second repair line 212 (i.e., the output repair line repair out). The first repair line 211 is connected to the first end of the broken data line 11 (i.e., point B in the figure), and the second repair line 212 is connected to the second end of the broken data line 11 (i.e., point E in the figure). The input end of the broken line repair circuit 40 is connected to the first end of the broken data line 11 (i.e., point B in the figure) via the first repair line 211. The output end of the broken line repair circuit 40 is connected to the second end of the broken data line 11 (i.e., point E in the figure) via the second repair line 212.

[0078] In the embodiment of the present application, the display panel further includes a printed circuit board (PCB), and the disconnection repair circuit 40 can be disposed on the PCB. A chip-on-film (COF) is disposed above the display panel. The first end of the disconnected data line 11 (i.e., point B in the figure) passes through the COF via a first repair line 211 and is connected to the disconnection repair circuit 40 on the PCB. The second end of the disconnected data line 11 (i.e., point E in the figure) is connected to the disconnection repair circuit 40 on the PCB via a second repair line 212.

[0079] In the embodiment of the present application, since the non-display area 20 of the display panel is provided with a first repair line 211 and a second repair line 212, when the data line is broken, it can be directly connected to the break repair circuit 40 through the first repair line 211 and the second repair line 212. The wiring is convenient and no wiring design is required, which can improve the repair rate.

[0080] In an embodiment of the present application, the display panel can adjust the pixel brightness of the repaired data line and the pixel brightness of the unrepaired data line to be the same through the broken line repair circuit. This can effectively improve the display unevenness caused by the difference in resistance and capacitance loads of the repaired data line and the unrepaired data line. The display panel may include an OLED (Organic Light-Emitting Diode) display panel and an LCD (Liquid Crystal Display) display panel.

[0081] The present invention also provides a method for repairing a broken wire, which is performed by the broken wire repair circuit provided in any of the embodiments of the present invention. Specifically, when the broken wire repair circuit only includes the RLC series resonant circuit 40, the resistance of the adjustable resistor in the RLC series resonant circuit can be adjusted based on the resistance-capacitance load corresponding to the repaired data line to which the broken wire repair circuit is connected, thereby adjusting the magnitude and rate of increase of the data voltage applied to the repaired data line, so that the pixel brightness of the repaired data line is the same as that of the unrepaired data line.

[0082] When there are multiple repair data lines, a broken line repair circuit can be connected to each repair data line, so that the broken line repair circuit can adjust the resistance value of the adjustable resistor in the RLC series resonant circuit according to the resistance and capacitance load corresponding to the repair data line to which it is connected, so as to adjust the pull-up amplitude and pull-up rate of the data voltage applied to the repair data line, so that the pixel brightness of the repair data line is the same as that of the non-repaired data line.

[0083] In some embodiments, the adjustable resistor in the RLC series resonant circuit can be a MOS transistor variable resistor. Accordingly, the line break repair circuit can be electrically connected to a timing control module, i.e., the timing control module provides a gate-source threshold voltage Vth to the gate of the MOS transistor variable resistor. Thus, the timing control module can adjust the gate-source threshold voltage Vth based on the resistance-capacitance load corresponding to the repair data line connected to the line break repair circuit, thereby adjusting the resistance of the MOS transistor variable resistor and thereby adjusting the rise amplitude and rise rate of the data voltage applied to the repair data line, so that the pixel brightness of the repaired data line is the same as that of the unrepaired data line.

[0084] When the line break repair circuit includes an RLC series resonant circuit and a switch circuit, and the switch circuit and the RLC series resonant circuit are connected in series between the first end and the second end of the repair data line, the resistance value of the adjustable resistor and the duty cycle of the second light-enabling signal waveform can be adjusted according to the resistance-capacitance load corresponding to the repair data line to which the line break repair circuit is connected, so as to adjust the pull-up amplitude and pull-up rate of the data voltage applied to the repair data line and the light-emitting duration of the pixels of the repair data line, so that the pixel brightness of the repair data line is the same as that of the non-repaired data line. In other words, the light emission of the pixels of the repair data line can be adjusted by adjusting the pull-up amplitude and pull-up rate of the data voltage and the light-emitting duration of the pixels of the repair data line.

[0085] As a specific adjustment method, the target resistance of the adjustable resistor can be determined based on the maximum resistance-capacitance load of the repair data line connected to the broken line repair circuit, and the resistance of the adjustable resistor can be adjusted to the target resistance; under the condition that the resistance of the adjustable resistor is the target resistance, the duty cycle of the corresponding second enable light-emitting signal waveform is adjusted according to the difference between the resistance-capacitance load of the repair data line and the maximum resistance-capacitance load, so that the pixel brightness of the repair data line is the same as the pixel brightness of the non-repaired data line. In this adjustment method, in each broken line repair circuit connected to each repair data line, the resistance of the adjustable resistor in each RLC series resonant circuit is the same, but the duty cycle of the second enable light-emitting signal EM2 input to each switching circuit is different, so that the pixel brightness of the repair data line can be the same as the pixel brightness of the non-repaired data line. In this way, the adjustment of the adjustable resistor in the RLC series resonant circuit can be reduced, and the repair efficiency can be improved.

[0086] When the line break repair circuit includes an RLC series resonant circuit and a switch circuit, and the switch circuit and the RLC series resonant circuit are connected in parallel between the first end of the repair data line and the second end of the repair data line, the resistance value of the adjustable resistor and / or the duty cycle of the second light-enabling signal waveform can be adjusted according to the resistance-capacitance load corresponding to the repair data line to which the line break repair circuit is connected, so as to adjust the pull-up amplitude and pull-up rate of the data voltage applied to the repair data line and / or the pixel light-emitting duration of the repair data line, so that the pixel brightness of the repair data line is the same as that of the non-repaired data line. In other words, the pixel light emission of the repair data line can be adjusted by adjusting either or both of the pull-up amplitude and pull-up rate of the data voltage and the pixel light-emitting duration of the repair data line.

[0087] The embodiment of the present application adjusts the resistance value of the adjustable resistor and / or the duty cycle of the second enable light-emitting signal waveform according to the resistance-capacitance load corresponding to the repair data line connected to the broken line repair circuit, so as to adjust the pull-up amplitude and pull-up rate of the data voltage applied to the repair data line and / or the pixel light-emitting duration of the repair data line, so that the pixel brightness of the repair data line is the same as the pixel brightness of the non-repair data line, which can effectively improve the display unevenness problem caused by the difference in resistance-capacitance load between the repair data line and the non-repair data line.

[0088] The embodiments described in the embodiments of this application are intended to more clearly illustrate the technical solutions of the embodiments of this application and do not constitute a limitation on the technical solutions provided by the embodiments of this application. Those skilled in the art will appreciate that with the evolution of technology and the emergence of new application scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0089] Those skilled in the art will understand that the technical solutions shown in the figures do not constitute a limitation on the embodiments of the present application, and may include more or fewer steps than shown in the figures, or a combination of certain steps, or different steps.

[0090] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, i.e., they may be located in one place or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of this embodiment.

[0091] Those skilled in the art will appreciate that all or some of the steps in the methods, systems, and functional modules / units in the devices disclosed above may be implemented as software, firmware, hardware, or appropriate combinations thereof.

[0092] The terms "first", "second", "third", "fourth", etc. (if any) in the specification of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0093] It should be understood that in this application, "at least one (item)" means one or more, and "plurality" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0094] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the above-mentioned units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0095] The units described above as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0096] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0097] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes multiple instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of various embodiments of the present application. The aforementioned storage medium includes: various media that can store programs, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0098] The preferred embodiments of the present invention are described above with reference to the accompanying drawings, but are not intended to limit the scope of the present invention. Any modifications, equivalent substitutions, and improvements made by those skilled in the art without departing from the scope and essence of the present invention should be within the scope of the present invention.

Claims

1. A line break repair circuit, characterized in that: Applied to a display panel, the display panel comprising: a plurality of data lines, wherein data lines formed by repairing broken data lines among the plurality of data lines are repaired data lines, and data lines other than the repaired data lines among the plurality of data lines are non-repaired data lines; The line break repair circuit comprises: an RLC series resonant circuit, the RLC series resonant circuit being configured to operate in an underdamped state or a critically damped state; an input end of the RLC series resonant circuit being connected to a first end of the repair data line to receive a data voltage applied to the repair data line, and an output end of the RLC series resonant circuit being connected to a second end of the repair data line; The RLC series resonant circuit includes an adjustable resistor, the resistance of which can be adjusted accordingly according to the resistive-capacitive load corresponding to the repaired data line to adjust the pull-up amplitude and pull-up rate of the data voltage applied to the repaired data line, so that the pixel brightness of the repaired data line is the same as the pixel brightness of the non-repaired data line.

2. The line break repair circuit according to claim 1, characterized in that: The adjustable resistor is a MOS transistor variable resistor, and the RLC series resonant circuit further includes a first inductor and a first capacitor; the first end of the first inductor is used to connect to the first end of the repair data line to receive the data voltage applied to the repair data line, the second end of the first inductor is connected to the source of the MOS transistor variable resistor, the drain of the MOS transistor variable resistor is connected to the first end of the first capacitor, the gate of the MOS transistor variable resistor is used to access the gate-source threshold voltage, the second end of the first capacitor is grounded, and the second end of the first inductor is also used to connect to the second end of the repair data line; Among them, the gate-source threshold voltage can be adjusted accordingly according to the resistance-capacitance load corresponding to the repaired data line to adjust the resistance value of the MOS tube variable resistor so that the pixel brightness of the repaired data line is the same as the pixel brightness of the non-repaired data line.

3. The line break repair circuit according to claim 1 or 2, characterized in that: The line break repair circuit further includes a switch circuit, wherein the switch circuit and the RLC series resonant circuit are connected in series between the first end of the repair data line and the second end of the repair data line; The switch circuit is used to access a second light-enabling signal waveform and control whether a data voltage is input to the second end of the repair data line based on the second light-enabling signal waveform, wherein the second light-enabling signal waveform is different from the first light-enabling signal waveform used to control the light-emitting duration of the pixel under normal display conditions; The duty cycle of the second enable light-emitting signal waveform can be adjusted accordingly according to the resistive-capacitive load corresponding to the repair data line to adjust the pixel light-emitting duration of the repair data line so that the pixel brightness of the repair data line is the same as the pixel brightness of the non-repair data line.

4. The line break repair circuit according to claim 3, characterized in that: The switch circuit includes a first triode, a second triode, a third triode and a MOS tube; The emitter of the first transistor is used to connect to the first end of the repair data line, the base of the first transistor is connected to the input end of the RLC series resonant circuit, the collector of the first transistor is connected to the collector of the second transistor, the emitter of the second transistor is grounded, the base of the second transistor is connected to the drain of the MOS transistor, the gate of the MOS transistor is used to access the second enable light-emitting signal waveform, the source of the MOS transistor is connected between the base of the first transistor and the input end of the RLC series resonant circuit, the collector of the first transistor is also connected to the base of the third transistor, the emitter of the third transistor is grounded, the collector of the third transistor is connected to the output end of the RLC series resonant circuit and then connected to the second end of the repair data line.

5. The line break repair circuit according to claim 1 or 2, characterized in that: The line break repair circuit further includes a switch circuit, wherein the switch circuit and the RLC series resonant circuit are connected in parallel between the first end of the repair data line and the second end of the repair data line; The switch circuit is used to access a second light-enabling signal waveform and control whether a data voltage is input to the second end of the repair data line based on the second light-enabling signal waveform, wherein the second light-enabling signal waveform is different from the first light-enabling signal waveform used to control the light-emitting duration of the pixel under normal display conditions; The duty cycle of the second enable light-emitting signal waveform can be adjusted accordingly according to the resistive-capacitive load corresponding to the repair data line to adjust the pixel light-emitting duration of the repair data line so that the pixel brightness of the repair data line is the same as the pixel brightness of the non-repair data line.

6. A display panel, characterized in that: include: a display area and a non-display area surrounding the display area, wherein the display area is provided with a plurality of data lines arranged at intervals, wherein data lines repaired from broken data lines are repaired data lines, and data lines other than the repaired data lines are non-repaired data lines; The line break repair circuit according to any one of claims 1 to 5, wherein the input end of the RLC series resonant circuit is used to connect to the first end of the repair data line; and the output end of the RLC series resonant circuit is used to connect to the second end of the repair data line to compensate the repair data line.

7. The display panel according to claim 6, wherein: The non-display area is provided with a first repair line and a second repair line, the first repair line is connected to the first end of the repair data line, and the second repair line is connected to the second end of the repair data line; The input end of the RLC series resonant circuit is connected to the first end of the repair data line through the first repair line; The output end of the RLC series resonant circuit is connected to the second end of the repair data line through the second repair line.

8. A line break repair method, executed based on the line break repair circuit according to any one of claims 1 to 5, characterized in that: The method comprises: According to the resistive-capacitive load corresponding to the repair data line connected to the broken line repair circuit, the resistance value of the adjustable resistor in the RLC series resonant circuit is adjusted to adjust the pull-up amplitude and pull-up rate of the data voltage applied to the repair data line, so that the pixel brightness of the repair data line is the same as the pixel brightness of the non-repaired data line.

9. The method according to claim 8, characterized in that The method further comprises: According to the resistive and capacitive load corresponding to the repair data line connected to the broken line repair circuit, the resistance value of the adjustable resistor and / or the duty cycle of the second enable light-emitting signal waveform are adjusted to adjust the pull-up amplitude and pull-up rate of the data voltage applied to the repair data line and / or the pixel light-emitting duration of the repair data line, so that the pixel brightness of the repair data line is the same as the pixel brightness of the non-repair data line.

10. The method according to claim 9, characterized in that Each repair data line is connected to a corresponding line repair circuit, and adjusting the resistance value of the adjustable resistor and the duty cycle of the second light-enabling signal waveform according to the resistance-capacitance load corresponding to the repair data line connected to the line repair circuit includes: determining a target resistance value of the adjustable resistor according to a maximum resistance-capacitance load of the repair data line connected to the line break repair circuit, and adjusting the resistance value of the adjustable resistor to the target resistance value; Under the condition that the resistance of the adjustable resistor is the target resistance, the duty cycle of the corresponding second enable light-emitting signal waveform is adjusted according to the difference between the resistive-capacitive load of the repaired data line and the maximum resistive-capacitive load, so that the pixel brightness of the repaired data line is the same as the pixel brightness of the non-repaired data line.

Images