Display panel and display device

Abstract

A display panel (100), comprising: an electrode layer (101), comprising a first electrode portion (1011) and a second electrode portion (1012); a compensator (102), comprising a first compensation module (1021) used for compensating the voltage of the first electrode portion (1011) and a second compensation module (1022) used for compensating the voltage of the second electrode portion (1012); and a gating device (103), comprising a first sub-gating device (1031) and a second sub-gating device (1032), wherein the first sub-gating device (1031) is used for electrically connecting / disconnecting the first electrode portion (1011) to / from the first compensation module (1021), and the second sub-gating device (1032) is used for electrically connecting / disconnecting the second electrode portion (1012) to / from the second compensation module (1022).

Description

Display panel and display device Technical Field

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

[0002] With the development of display technology, end customers have higher and higher demands for image quality, and the widespread problem of crosstalk has received particular attention.

[0003] Specifically, the common electrode in the display panel originally hopes to maintain the same potential everywhere so as to provide the same common voltage in the pixel circuits of different sub-pixels. However, there is a circuit in the display panel that is arranged opposite to the common electrode. The change of the signal transmitted in the circuit causes the potential of the common electrode to change accordingly through coupling. In addition, the degree of coupling of the common electrode in different areas such as the near end and the far end of the display panel is different, resulting in different potentials of the common electrode in different areas, so that the common voltages provided to sub-pixels at different positions are also different, resulting in crosstalk images.

[0004] In summary, the common electrodes in existing display panels have the above-mentioned problems and are in urgent need of improvement. SUMMARY OF THE INVENTION

[0005] The purpose of the present application is to provide a display panel and a display device to solve the technical problem of crosstalk caused by different common voltages of common electrodes in different areas of the existing display panel.

[0006] An embodiment of the present application provides a display panel, comprising a plurality of regions, wherein the plurality of regions include a first region and a second region, including:

[0007] an electrode layer comprising a plurality of electrode portions respectively located in the plurality of the regions, the plurality of electrode portions comprising a first electrode portion located in the first region and a second electrode portion located in the second region;

[0008] a compensator comprising a plurality of compensation modules corresponding to the plurality of electrode portions, the plurality of compensation modules comprising a first compensation module and a second compensation module, the first compensation module being used to compensate for a voltage of the first electrode portion, and the second compensation module being used to compensate for a voltage of the second electrode portion;

[0009] The gate includes multiple sub-gates corresponding to the multiple electrode parts respectively, and the multiple sub-gates include a first sub-gate and a second sub-gate. The first sub-gate is used to electrically connect or disconnect the first electrode part with the first compensation module, and the second sub-gate is used to electrically connect or disconnect the second electrode part with the second compensation module. Beneficial effects

[0010] The present application provides a display panel and a display device, wherein the electrode layer includes a plurality of electrode parts. By providing a plurality of compensation modules corresponding to the plurality of electrode parts and a plurality of sub-selectors corresponding to the plurality of compensation modules, each sub-selector can electrically connect or disconnect the corresponding electrode part with the corresponding compensation module, so that during the debugging process before leaving the factory, a larger number of compensation modules can be selected for compensating the electrode layer, thereby increasing the flexibility and reliability of debugging and avoiding the increase in cost caused by the additional production of compensation modules for debugging. After leaving the factory, the potential of at least one corresponding electrode part can be compensated according to the status of the plurality of selectors. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present application is further described below with reference to the accompanying drawings. It should be noted that the drawings described below are only used to illustrate some embodiments of the present application, and those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0012] FIG1 is a schematic diagram of the structure of a display panel provided in an embodiment of the present application.

[0013] 2 to 4 are schematic diagrams of the internal structure of the sub-gate provided in an embodiment of the present application.

[0014] Figures 5 and 6 are schematic diagrams of the structure of the display panel provided in the embodiment of the present application

[0015] FIG7 is a schematic diagram of the internal structure of the compensation module provided in an embodiment of the present application. Modes for Carrying Out the Invention

[0016] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0017] In the description of this application, it should be understood that the term "connection" means that the two can be directly or indirectly connected, the two can be connected with constant current, non-constant current or disconnected with constant current, and the term "electrical connection" means that the two can be connected with constant current.

[0018] In addition, it should be noted that the drawings only illustrate structures that are closely related to the present application, omitting some details that are not relevant to the application. This is intended to simplify the drawings and make the application clear at a glance, and does not indicate that the actual device and method are exactly the same as the drawings. This does not limit the actual device and method. Furthermore, the numerical values ​​listed in this application for size, concentration, force, temperature, etc. are merely illustrative of distances that can be, but are not limited to, the above values. The numerical values ​​can be set according to actual conditions, as long as the corresponding effect is achieved.

[0019] The present application provides a display panel, which includes but is not limited to the following embodiments and combinations of the following embodiments.

[0020] In some embodiments, as shown in FIG1 , the display panel 100 includes: a plurality of regions, the plurality of regions including a first region A1 and a second region A2; an electrode layer 101 including a plurality of electrode portions respectively located in the plurality of regions, the plurality of electrode portions including a first electrode portion 1011 located in the first region A1 and a second electrode portion 1012 located in the second region; a compensator 102 including a plurality of compensation modules respectively corresponding to the plurality of electrode portions, the plurality of compensation modules including a first compensation module 1021 and a second compensation module 1022, the first compensation module 1021 being used to Compensate for the voltage of the first electrode portion 1011, and the second compensation module 1022 is used to compensate for the voltage of the second electrode portion 1012; the selector 103 includes a plurality of sub-selectors corresponding to the plurality of electrode portions respectively, and the plurality of sub-selectors include a first sub-selector 1031 and a second sub-selector 1032, the first sub-selector 1031 is used to electrically connect or disconnect the first electrode portion 1011 with the first compensation module 1021, and the second sub-selector 1032 is used to electrically connect or disconnect the second electrode portion 1012 with the second compensation module 1022.

[0021] In this embodiment, the type of display panel 100 and the nature of the electrode layer 101 are not limited. For example, if the display panel 100 is a liquid crystal display panel, the electrode layer 101 may be a common electrode layer. Liquid crystal molecules can deflect by a corresponding angle under the voltage difference between the common electrode layer and the corresponding pixel electrode (whose potential is determined by the data voltage) to transmit a corresponding amount of light, thereby causing the corresponding sub-pixel to exhibit a corresponding brightness. For another example, if the display panel 100 is a self-luminous display panel, the electrode layer 101 may be a cathode layer. The light-emitting element can emit a corresponding brightness under the influence of the voltage of the cathode layer, the voltage of the corresponding anode, and the data voltage transmitted by the corresponding data line, thereby causing the corresponding sub-pixel to exhibit a corresponding brightness.

[0022] It should be noted that for the display panel 100, the electrode layer 101 can be provided across the entire surface or separately for respective sub-pixels. However, theoretically, it is desirable that the portions of the electrode layer 101 located in different regions have the same potential, so as to provide the same potential to sub-pixels at different locations to ensure that the brightness displayed by the different sub-pixels is determined by the corresponding data voltage. However, in the prior art, due to limitations in the display panel 100, the electrode layer 101 in different regions, such as the proximal end (closer to the driver chip, which may include but is not limited to the compensator and gate described above) and the distal end, experiences different degrees of coupling with the transmission signal routing. This results in different potentials in different regions of the electrode layer 101, which can cause crosstalk.

[0023] It can be understood that in this embodiment, by setting the compensator 102 to include multiple compensation modules, and each compensation module controls whether it is electrically connected to the corresponding electrode part through the corresponding sub-selector, multiple compensation modules and corresponding multiple sub-selectors and corresponding multiple compensation modules can be set in the process of manufacturing the display panel 100. In the later debugging process, a large number of compensation modules can be available for debugging, and the potential of which electrode part in which area is to be adjusted can be selected according to the display situation of the test screen, that is, which sub-selectors are set to be used to electrically connect the corresponding electrode part and the corresponding compensation module, thereby avoiding the risk of display abnormalities in certain areas (caused by potential abnormalities of the corresponding electrode part) but the corresponding sub-selector and the corresponding compensation module are not set in the area, resulting in an inability to compensate, or avoiding the need to make the corresponding sub-selector and the corresponding compensation module again, resulting in an increased difficulty in the process technology.

[0024] The number of the regions, the number of the electrode portions, and the number of the sub-gates are all greater than or equal to 3, and at least one of the sub-gates is used to electrically disconnect the corresponding first electrode portion from the corresponding compensation module. As discussed above, the regions, electrode portions, and sub-gates are set in a one-to-one correspondence, and the number of the three is the same. According to the debugging process of the display panel 100 before leaving the factory, it is possible to determine which sub-gates need to electrically connect or disconnect the corresponding first electrode portion from the corresponding compensation module, and perform the corresponding "electrical connection or disconnection" settings. That is, the role of the sub-gate of this embodiment is different from that of a wire that can only be used for electrical connection. Instead, it can determine whether to electrically connect or disconnect the corresponding first electrode portion from the corresponding compensation module based on the display status of the test screen. If the display of a certain area in the test screen is normal, it can be considered that the corresponding first electrode portion and the corresponding compensation module are electrically disconnected through the corresponding sub-gate, rather than electrically connected.

[0025] Specifically, as shown in Figure 1, the gate 103 is connected between the electrode layer 101 and the input end of the compensator 102, and is used to electrically connect or disconnect the electrode layer 101 with the input end of the compensator 102; or, different from what is shown in Figure 1, the gate 103 is connected between the output end of the compensator 102 and the electrode layer 101, and is used to electrically connect or disconnect the output end of the compensator 102 with the electrode layer 101.

[0026] It can be understood that if the gate 103 is connected to the electrode layer 101 and the input end of the compensator 102, that is, each sub-gate is connected between the corresponding electrode part and the input end I (which may include the first input end I1 and the second input end I2) of the corresponding compensation module, if a certain area of ​​the debugging process displays normally, the sub-gate makes the input end I of the corresponding compensation module suspended, which can avoid the compensation module performing corresponding compensation calculations according to the potential of the electrode part, and the power consumption is low; if the gate 103 is connected to the output end of the compensator 102 and the electrode layer 101, that is, each sub-gate is connected between the output end O of the corresponding compensation module and the corresponding electrode part, if a certain area of ​​the debugging process displays normally, the sub-gate makes the output end O of the corresponding compensation module suspended, which can avoid the compensation voltage after the compensation module performs corresponding compensation calculations according to the potential of the electrode part to be applied to the corresponding electrode part.

[0027] In some embodiments, as shown in Figures 2 and 3, the sub-selector includes: a first wire 1041, electrically connected to the corresponding electrode portion; a second wire 1042, electrically connected to the corresponding compensation module; and an optional conductive portion 1043, connected between the first wire 1041 and the second wire 1042, for electrically connecting or disconnecting the first wire 1041 from the second wire 1042.

[0028] For ease of description, in this embodiment, the number of regions, the number of electrode portions, and the number of sub-selectors are all equal to 8, and each sub-selector is connected between the corresponding electrode portion and the input terminal I of the corresponding compensation module. For example, the eight regions A1 to A8 can be divided as follows: the first region A1 to the fourth region A4 are arranged in sequence from the far end to the near end in the left half of the display panel 100, and the fifth region A5 to the eighth region A8 are arranged in sequence from the far end to the near end in the right half of the display panel 100. A1 and A5 are at the same horizontal position, A2 and A6 are at the same horizontal position, A3 and A7 are at the same horizontal position, and A4 and A8 are at the same horizontal position. Of course, the number and division method of the above-mentioned multiple regions are not limited in this application, and the above is only an example.

[0029] As shown in Figures 2 and 3, in the four sub-selectors (first sub-selector 1031 to fourth sub-selector 1034) corresponding to the first area A1 to the fourth area A4, the corresponding four first wires 1041 are respectively electrically connected to the corresponding four electrode parts (first electrode part 1011 to fourth electrode part 1014), and the corresponding four second wires 1042 are respectively electrically connected to the corresponding four compensation modules (first compensation module 1021 to fourth compensation module 1024); similarly, in the four sub-selectors (fifth sub-selector 1035 to eighth sub-selector 1038) corresponding to the fifth area A5 to the eighth area A8, the corresponding four first wires 1041 and the corresponding four second wires 1042 can also refer to the relevant settings in the first sub-selector 1031 to the fourth sub-selector 1034.

[0030] Specifically, as shown in FIG2 , the first wire 1041 and the second wire 1042 in the same sub-gate can be connected by means of a resistor. For example, the two can be connected by welding a resistor R with a low impedance (close to or equal to 0 ohm), or disconnected by not welding the resistor R. The welding process can be performed according to the debugging result during the debugging process. At this time, the optional conductive part 1043 is referred to as whether the resistor is welded between the first wire 1041 and the second wire 1042. As shown in FIG3 , the first wire 1041 and the second wire 1042 in the same sub-gate can be connected. Whether it is turned on or off is achieved by setting a switch. For example, a transistor M can be set between the two. One of the source and the drain of the transistor M is electrically connected to one of the first wire 1041 and the second wire 1042. The other of the source and the drain of the transistor M is electrically connected to the other of the first wire 1041 and the second wire 1042. The gate of the transistor M is loaded with a corresponding control signal. The corresponding transistor M is turned on or off by setting the control signal. The setting process of the above-mentioned control signal can be executed according to the debugging result in the above-mentioned debugging process. At this time, the optional conductive part 1043 is called transistor M.

[0031] In some embodiments, as shown in Figure 4, the sub-selector includes: multiple input wires 1051, corresponding to the multiple electrode parts respectively, each of the input wires 1051 is electrically connected to the corresponding electrode part; an output wire 1052, electrically connected to the corresponding compensation module; and a conduction control part 1053, used to electrically connect one of the multiple input wires 1051 to the output wire 1052.

[0032] Taking the number and division method of the above-mentioned multiple regions as an example, each of the four sub-selectors (the first sub-selector 1031 to the fourth sub-selector 1034) corresponding to the first region A1 to the fourth region A4 includes four input wires 1051. One input wire 1051 is selected from each of the four sub-selectors to be electrically connected to the first electrode portion 1011, another input wire 1051 is selected from each of the four sub-selectors to be electrically connected to the second electrode portion 1012, and another input wire 1051 is selected to be electrically connected to the third electrode portion 1012. The electrode portion 1013, and then the remaining input wire 1051 is electrically connected to the fourth electrode portion 1014, and an output wire 1052 of each of the four sub-selectors is electrically connected to a corresponding compensation module (selected from the first compensation module 1021 to the fourth compensation module 1024). The conduction control portion 1053 of each of the four sub-selectors can be a 4-to-1 data selector, which has two control terminals SW1 and SW2 (respectively loaded with two corresponding control signals, which can both be digital signals).

[0033] For any sub-gate, theoretically, the two control signals corresponding to SW1 and SW2 can be set in the following four ways:

[0034] (1) The two control signals corresponding to SW1 and SW2 are 0 and 0 respectively, indicating that the input wire 1051 corresponding to the first electrode portion 1011 is electrically connected to the output wire 1052;

[0035] (2) When the two control signals corresponding to SW1 and SW2 are 0 and 1 respectively, it means that the input wire 1051 corresponding to the second electrode portion 1012 is electrically connected to the output wire 1052;

[0036] (3) When the two control signals corresponding to SW1 and SW2 are 1 and 0 respectively, it means that the input wire 1051 corresponding to the third electrode portion 1013 is electrically connected to the output wire 1052;

[0037] (4) When the two control signals corresponding to SW1 and SW2 are 1 and 1 respectively, it means that the input wire 1051 and the output wire 1052 corresponding to the fourth electrode portion 1014 are electrically connected.

[0038] It should be noted that, in order to avoid compensation anomalies caused by the action of two or more compensation modules on the same electrode portion, each electrode portion can only be electrically connected to its corresponding compensation module at most. In this embodiment, in order to reduce the difficulty of setting, the electrical connection between the first electrode portion 1011 and the first compensation module 1021 can be achieved by setting the two control signals of the first sub-selector 1031 to the above-mentioned method (1), and the electrical connection between the second electrode portion 1012 and the second compensation module 1022 can be achieved by setting the two control signals of the second sub-selector 1032 to the above-mentioned method (2), the electrical connection between the third electrode portion 1013 and the third compensation module 1023 can be achieved by setting the two control signals of the third sub-selector 1033 to the above-mentioned method (3), and the electrical connection between the fourth electrode portion 1014 and the fourth compensation module 1024 can be achieved by setting the two control signals of the fourth sub-selector 1034 to the above-mentioned method (4); if any electrode portion and the corresponding compensation module are to be electrically disconnected, the corresponding two control signals can be unloaded (i.e., SW1 and SW2 are left floating).

[0039] Similarly, the setting process of the two control signals of each sub-gate in this embodiment can also be performed according to the debugging result during the debugging process. In this case, the conduction control unit 1053 is called a 4-to-1 data selector.

[0040] Similarly, the configuration of the multiple input conductors 1051, the output conductor 1052, and the conduction control unit 1053 in each of the four sub-gates (fifth sub-gate 1035 to eighth sub-gate 1038) corresponding to the fifth to eighth regions A5 to A8 in this embodiment can also refer to the relevant configurations of the first to fourth sub-gates 1031 to 1034. Furthermore, each of the eight sub-gates can also be configured to include eight input conductors 1051, one output conductor 1052, and a conduction control unit 1053 (in this case, it is essentially an 8-to-1 data selector). The specific configuration principles can refer to the configuration principles of the 4-to-1 data selector described above.

[0041] In some embodiments, as shown in Figure 1, the display panel 100 also includes: a power manager 106, which is used to provide an initial voltage to the electrode layer 101; the first input terminal I1 of the compensation module is connected to the first sub-electrode portion 01 in the corresponding electrode portion, the second input terminal I2 of the compensation module is electrically connected to the power manager 106 to obtain the initial voltage, and the output terminal O of the compensation module is electrically connected to the second sub-electrode portion 02 in the corresponding electrode portion, and the first sub-electrode portion 01 and the second sub-electrode portion 02 in the same electrode portion are the same or different.

[0042] As discussed above, it can be seen that the initial voltage must first be provided to the electrode layer 101 by the power manager 106 (which may also be included in the aforementioned driver chip or provided independently of the aforementioned driver chip). Then, as described in the prior art, differences in potentials between portions of the electrode layer 101 located in different areas are caused by the degree of signal coupling. Based on this, in this embodiment, the input terminal I of the compensation module is further configured to include a first input terminal I1 and a second input terminal I2. The first input terminal obtains the potential of the first sub-electrode portion O1 in the electrode portion, while the second input terminal I2 obtains the initial voltage generated by the power manager 106. The compensation module generates a compensation voltage based on these two factors, which can be applied to the second sub-electrode portion O2 in the electrode portion through its output terminal O.

[0043] Among them, the first sub-electrode part 01 and the second sub-electrode part 02 in the electrode part can be different. It can be considered that the distance between the two is far, resulting in a difference in the potential presented by the two at the same time. At this time, it is understood that the compensation module uses the initial voltage as a reference and compensates the potential of the second sub-electrode part 02 according to the potential of the first sub-electrode part 01. Considering that the entire electrode layer 101 is electrically connected everywhere, the potentials of the two can be improved after compensation. After multiple detections and compensations, the potentials of the two can be closer to the initial voltage. Of course, it can also be considered that the distance between the two is close, or even that the two are the same, that is, the two are the same part located at the same position, so the first input The potential obtained by the terminal I1 can simultaneously represent the potentials of the two, and the voltage output by the output terminal O of the compensation module can be considered to compensate for the potentials of the two at the same time. Each output of the output terminal O of the compensation module is based on the potential obtained by the first input terminal I1 this time, and each time the potential obtained by the first input terminal I1 is also based on the voltage output by the output terminal O of the compensation module last time after compensating the electrode part, that is, there is always a detection before there is a corresponding compensation. Therefore, even if the first sub-electrode part 01 and the second sub-electrode part 02 are the same, at the same time, the voltage output by the output terminal O of the compensation module will not interfere with the accuracy of the potential detected by the first input terminal I1.

[0044] In some embodiments, referring to FIG. 5 and portions of FIG. 1 , the power manager 106 is electrically connected to the electrode layer 101 via a wire 091 to provide the initial voltage to the corresponding second sub-electrode portion 02. Specifically, the display panel 100 may include a peripheral trace disposed near the edge of the electrode layer 101 to serve as the aforementioned "wire 091" (electrically connected to the power manager 106). Electrode portions at different locations within the electrode layer 101 can be electrically connected to the nearest portion of the peripheral trace to receive the initial voltage. In this embodiment, the power manager 106 can be considered to be constantly electrically connected to the electrode layer 101 to provide the initial voltage. Therefore, the compensation module must be configured such that, when the voltage output by the compensation module's output terminal O, the initial voltage, and the aforementioned coupling effect act on the electrode portion, the actual voltage present at the electrode portion approximates the initial voltage.

[0045] In some embodiments, with reference to FIG6 and portions of FIG1 , the power manager 106 is connected to the electrode layer 101 via a switch 092 to provide the initial voltage to the corresponding second sub-electrode portion 02. The switch 092 is configured to electrically disconnect the power manager 106 from the electrode layer 101 when the compensation module output terminal provides the compensation voltage to the corresponding second sub-electrode portion 02. This embodiment differs from the previous embodiments in that the power manager 106 can be electrically connected and disconnected from the electrode layer 101 via the switch 092. The switch 092 can also be connected to the electrode layer 101 via a connection line 093. For example, during the debugging process, the switch 092 can be closed only when the display panel 100 is powered on to transmit the initial voltage generated by the power manager 106 to the electrode layer 101, so that the electrode layer 101 has a corresponding potential. The compensation module can then detect the potential of the corresponding electrode portion and generate the corresponding compensation voltage to output to the second sub-electrode portion 02. At this point, the switch 092 can be disconnected, so that power is supplied to the electrode portion only via the output terminal O of the compensation module.

[0046] It should be noted that in this embodiment, if a sub-selector is in the on state after the display panel 100 leaves the factory, then during use, the switch connected between the power manager 106 and the corresponding electrode portion can be controlled to be closed only once when the display panel 100 is powered on, and the subsequent power supply of the electrode layer 101 is provided by the corresponding compensation module; if a sub-selector is in the off state after the display panel 100 leaves the factory, then during use, the switch connected between the power manager 106 and the corresponding electrode portion is controlled to be closed all the time so that the power manager 106 supplies power to the electrode portion.

[0047] In some embodiments, as shown in Figure 1, the gate 103 is connected between the electrode layer 101 and the input end of the compensator 102; the power manager 106 is used to provide the initial voltage to the corresponding second sub-electrode portion 02 through the compensation module when the first input end I1 of the compensation module and the corresponding first sub-electrode portion 01 are not loaded with voltage. Different from the connection method between the power manager 106 and the electrode layer in the above two embodiments, in this embodiment, under the premise that the power manager 106 is originally electrically connected to the second input terminal I2 of the compensation module, the compensation module is configured to form a voltage follower when the electrode layer 101 is not loaded with the initial voltage (the electrode part and the corresponding first input terminal I1 also have no potential and are in a suspended state. At this time, it can be considered that the display panel 100 is just powered on before or after leaving the factory). Specifically, at this time, the voltage output by the output terminal O of the compensation module is the initial voltage loaded by the second input terminal I2. After the initial voltage acts on the electrode layer 101, each electrode part can have an actual potential to be detected by the first input terminal I1. From then on, the compensation module enters a repeated detection and compensation process, and the potential of the electrode part can be improved.

[0048] It can be understood that in this embodiment, if the sub-selector is in the on state after the display panel 100 leaves the factory, then during use, when the display panel 100 is powered on, the power manager 106 provides an initial voltage to the electrode part through the compensation module that forms a "voltage follower", and then outputs the compensation voltage to the electrode part through the compensation module; if the sub-selector is in the off state after the display panel 100 leaves the factory, then during use, the power manager 106 constantly forms the compensation module that forms a "voltage follower" to constantly provide an initial voltage to the electrode part.

[0049] Specifically, the compensation module may include an operational amplifier, and one of the inverting input terminal "-" and the non-inverting input terminal "+" of the operational amplifier may be set to one of the first input terminal I1 and the second input terminal I2, and the other of the inverting input terminal "-" and the non-inverting input terminal "+" may be set to the other of the first input terminal I1 and the second input terminal I2, and the second input terminal I2 may be electrically connected to the output terminal O through a wire. According to the working principle of the operational amplifier, during the debugging process, the resistance of the branch where the first input terminal I1 is located and the resistance of the branch where the output terminal O is located are set to be equal at the moment the display panel 100 is powered on. Since no voltage is applied to the first sub-electrode portion 01, the first input terminal I1 of the operational amplifier is in a floating state, and the voltage of the output terminal O (equal to the initial voltage) is transmitted to the second sub-electrode portion 02, so that the operational amplifier can then detect the corresponding potential to compensate the electrode portion. During the detection and compensation process, at least one of the resistance of the branch where the first input terminal I1 is located and the resistance of the branch where the output terminal O is located can be adjusted to set a suitable compensation voltage.

[0050] Similarly, in this embodiment, if the sub-selector is in the on state after the display panel 100 leaves the factory, then during use, the resistance of the branch where the first input terminal I1 is located and the resistance of the branch where the output terminal O is located can be controlled to be equal only when the display panel 100 is powered on, and the ratio of the two is subsequently set to the ratio determined during the debugging process, so that the compensation module provides the corresponding compensation voltage to the electrode part; if the sub-selector is in the off state after the display panel 100 leaves the factory, then during use, the resistance of the branch where the first input terminal I1 is located and the resistance of the branch where the output terminal O is located can be controlled to be equal at all times, so that the power manager 106 supplies power to the electrode part.

[0051] In some embodiments, as shown in conjunction with FIG1 and FIG7 , the first compensation module 1021 is configured to generate a first compensation depth and to compensate for the voltage of the first electrode portion 1011 based on the initial voltage and the first compensation depth. The second compensation module 1022 is configured to generate a second compensation depth and to compensate for the voltage of the second electrode portion 1012 based on the initial voltage and the second compensation depth. Further, for a plurality of sub-gates that are turned on, each of the corresponding plurality of compensation modules can generate a corresponding compensation depth, and the two compensation depths of two different compensation modules can be the same or different. For example, when the distance between the first electrode portion 1011 and the second electrode portion 1012 is relatively far, the first compensation depth and the second compensation depth can be considered different. When the distance between the two is relatively close, the first compensation depth and the second compensation depth can be considered the same.

[0052] Specifically, as shown in FIG7 , the compensation module may include an operational amplifier. The inverting input terminal "-" of the operational amplifier may be electrically connected to the first input terminal I1 via an input resistor R2. The non-inverting input terminal "+" of the operational amplifier may be electrically connected to the second input terminal I2. The output terminal of the operational amplifier is set to the output terminal O, and the inverting input terminal "-" and the output terminal O are electrically connected via a feedback resistor R1. According to the operating principle of the operational amplifier, when the inverting input terminal "-" and the non-inverting input terminal "+" are respectively loaded with corresponding voltages, the compensation voltage output by the output terminal O can be determined by combining the ratio of the input resistor R2 and the feedback resistor R1 (i.e., the corresponding compensation depth). For example, when the initial voltage (applied to the non-inverting input terminal "+") is 0 volts, the compensation voltage output by the output terminal O can be determined solely by the potential of the corresponding first sub-electrode portion O1 and the ratio of the input resistor R2 and the feedback resistor R1. During the pre-shipment commissioning of the display panel 100, at least one of the input resistor R2 and the feedback resistor R1 can be adjusted to adjust the corresponding compensation depth.

[0053] Of course, since compensation modules corresponding to other ultimately disconnected sub-gaters may also participate in the debugging process, even in the display panel 100 after shipment, the corresponding compensation depth for the disconnected sub-gaters may not be limited. However, in the aforementioned "voltage follower" embodiment, for the disconnected sub-gater, to ensure that the power manager 106 supplies power to the electrode portion, the resistance of the branch where the first input terminal I1 resides (i.e., the input resistor R2) and the resistance of the branch where the output terminal O resides (the feedback resistor R1) must be set to be equal.

[0054] Furthermore, as shown in Figure 7, the compensation module may also include a first capacitor C1 electrically connected between the input resistor R2 and the first input terminal I1, and utilize the property that the voltage difference between its two ends cannot change suddenly, so that the inverting input terminal "-" can extract the change in the potential of the corresponding first sub-electrode portion 01; the compensation module may also include a second capacitor C2 electrically connected between the ground and the positive input terminal "+", and the second capacitor C2 can be a filter capacitor to filter out noise in the signal containing the initial voltage output by the power manager 106; the compensation module may also include a dummy load resistor R3 electrically connected between the ground and the output terminal O. When the display panel 100 is powered off, the residual charge in the electrode layer 101 can be quickly released through the load resistor R3, thereby reducing the risk of flickering of the display panel 100.

[0055] The present application also provides a display device, comprising any display panel as described above.

[0056] The present application provides a display panel and a display device, wherein the electrode layer includes a plurality of electrode parts. By providing a plurality of compensation modules corresponding to the plurality of electrode parts and a plurality of sub-selectors corresponding to the plurality of compensation modules, each selector can electrically connect or disconnect the corresponding electrode part with the corresponding compensation module, so that during the debugging process before leaving the factory, a larger number of compensation modules can be selected for compensating the electrode layer, thereby increasing the flexibility and reliability of debugging and avoiding the increase in cost caused by the additional production of compensation modules for debugging. After leaving the factory, the potential of at least one corresponding electrode part can be compensated according to the status of the plurality of selectors.

[0057] The display panel and display device provided in the embodiments of the present application are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display panel, wherein: Comprising multiple areas, the multiple areas comprising a first area and a second area, including: an electrode layer comprising a plurality of electrode portions respectively located in the plurality of the regions, the plurality of electrode portions comprising a first electrode portion located in the first region and a second electrode portion located in the second region; a compensator comprising a plurality of compensation modules corresponding to the plurality of electrode portions, the plurality of compensation modules comprising a first compensation module and a second compensation module, the first compensation module being used to compensate for a voltage of the first electrode portion, and the second compensation module being used to compensate for a voltage of the second electrode portion; a gate, comprising a plurality of sub-gates corresponding to the plurality of electrode portions, respectively, the plurality of sub-gates comprising a first sub-gate and a second sub-gate, the first sub-gate being used to electrically connect or disconnect the first electrode portion from the first compensation module, and the second sub-gate being used to electrically connect or disconnect the second electrode portion from the second compensation module; The number of the regions, the number of the electrode portions, and the number of the sub-gates are all greater than or equal to 3, and at least one sub-gate is used to electrically disconnect the corresponding first electrode portion from the corresponding compensation module; The first compensation module is used to generate a first compensation depth and to compensate for the voltage of the first electrode portion according to the initial voltage and the first compensation depth; the second compensation module is used to generate a second compensation depth and to compensate for the voltage of the second electrode portion according to the initial voltage and the second compensation depth.

2. The display panel according to claim 1, wherein: The gate is connected between the electrode layer and the input end of the compensator, and is used to electrically connect or disconnect the electrode layer from the input end of the compensator; Alternatively, the gate is connected between the output end of the compensator and the electrode layer, and is used to electrically connect or disconnect the output end of the compensator from the electrode layer.

3. The display panel according to claim 1, wherein: The sub-gate comprises: A first wire electrically connected to the corresponding electrode portion; A second wire electrically connected to the corresponding compensation module; An optional conducting portion is connected between the first conducting wire and the second conducting wire, and is used to electrically connect or disconnect the first conducting wire and the second conducting wire.

4. The display panel according to claim 1, wherein: The sub-gate comprises: a plurality of input wires, corresponding to the plurality of electrode portions respectively, each of the input wires being electrically connected to a corresponding electrode portion; Output wires, electrically connected to the corresponding compensation modules; The conduction control unit is used to electrically connect one of the plurality of input wires to the output wire.

5. The display panel according to claim 1, wherein: The display panel further includes: a power manager, configured to provide an initial voltage to the electrode layer; The first input end of the compensation module is connected to the first sub-electrode portion in the corresponding electrode portion, the second input end of the compensation module is electrically connected to the power manager to obtain the initial voltage, and the output end of the compensation module is electrically connected to the second sub-electrode portion in the corresponding electrode portion. The first sub-electrode portion and the second sub-electrode portion in the same electrode portion are the same or different.

6. The display panel according to claim 5, wherein: The power manager is electrically connected to the electrode layer through a wire to provide the initial voltage to the corresponding second sub-electrode portion.

7. The display panel according to claim 5, wherein: The power manager is connected to the electrode layer through a switch to provide the initial voltage to the corresponding second sub-electrode part. The switch is used to electrically disconnect the power manager from the electrode layer when the output end of the compensation module provides the compensation voltage to the corresponding second sub-electrode part.

8. The display panel according to claim 5, wherein: The gate is connected between the electrode layer and the input end of the compensator; the power manager is used to provide the initial voltage to the corresponding second sub-electrode part through the compensation module when the first input end of the compensation module and the corresponding first sub-electrode part are not loaded with voltage.

9. A display panel, wherein: Comprising multiple areas, the multiple areas comprising a first area and a second area, including: an electrode layer comprising a plurality of electrode portions respectively located in the plurality of the regions, the plurality of electrode portions comprising a first electrode portion located in the first region and a second electrode portion located in the second region; a compensator comprising a plurality of compensation modules corresponding to the plurality of electrode portions, the plurality of compensation modules comprising a first compensation module and a second compensation module, the first compensation module being used to compensate for a voltage of the first electrode portion, and the second compensation module being used to compensate for a voltage of the second electrode portion; The gate includes multiple sub-gates corresponding to the multiple electrode parts respectively, and the multiple sub-gates include a first sub-gate and a second sub-gate. The first sub-gate is used to electrically connect or disconnect the first electrode part with the first compensation module, and the second sub-gate is used to electrically connect or disconnect the second electrode part with the second compensation module.

10. The display panel according to claim 9, wherein: The number of the regions, the number of the electrode portions, and the number of the sub-gates are all greater than or equal to 3, and at least one sub-gate is used to electrically disconnect the corresponding first electrode portion from the corresponding compensation module.

11. The display panel according to claim 10, wherein: The sub-gate comprises: A first wire electrically connected to the corresponding electrode portion; A second wire electrically connected to the corresponding compensation module; An optional conducting portion is connected between the first conducting wire and the second conducting wire, and is used to electrically connect or disconnect the first conducting wire and the second conducting wire.

12. The display panel according to claim 9, wherein: The sub-gate comprises: A first wire electrically connected to the corresponding electrode portion; A second wire electrically connected to the corresponding compensation module; An optional conducting portion is connected between the first conducting wire and the second conducting wire, and is used to electrically connect or disconnect the first conducting wire and the second conducting wire.

13. The display panel according to claim 9, wherein: The gate is connected between the electrode layer and the input end of the compensator, and is used to electrically connect or disconnect the electrode layer from the input end of the compensator; Alternatively, the gate is connected between the output end of the compensator and the electrode layer, and is used to electrically connect or disconnect the output end of the compensator from the electrode layer.

14. The display panel according to claim 9, wherein: The sub-gate comprises: a plurality of input wires, corresponding to the plurality of electrode portions respectively, each of the input wires being electrically connected to a corresponding electrode portion; Output wires, electrically connected to the corresponding compensation modules; The conduction control unit is used to electrically connect one of the plurality of input wires to the output wire.

15. The display panel according to claim 9, wherein: The display panel further includes: a power manager, configured to provide an initial voltage to the electrode layer; The first input end of the compensation module is connected to the first sub-electrode portion in the corresponding electrode portion, the second input end of the compensation module is electrically connected to the power manager to obtain the initial voltage, and the output end of the compensation module is electrically connected to the second sub-electrode portion in the corresponding electrode portion. The first sub-electrode portion and the second sub-electrode portion in the same electrode portion are the same or different.

16. The display panel according to claim 15, wherein: The power manager is electrically connected to the electrode layer through a wire to provide the initial voltage to the corresponding second sub-electrode portion.

17. The display panel according to claim 15, wherein: The power manager is connected to the electrode layer through a switch to provide the initial voltage to the corresponding second sub-electrode part. The switch is used to electrically disconnect the power manager from the electrode layer when the output end of the compensation module provides the compensation voltage to the corresponding second sub-electrode part.

18. The display panel according to claim 15, wherein: The gate is connected between the electrode layer and the input end of the compensator; the power manager is used to provide the initial voltage to the corresponding second sub-electrode part through the compensation module when the first input end of the compensation module and the corresponding first sub-electrode part are not loaded with voltage.

19. The display panel according to claim 10, wherein: The first compensation module is used to generate a first compensation depth and to compensate the voltage of the first electrode portion according to the initial voltage and the first compensation depth. The second compensation module is used to generate a second compensation depth and to compensate the voltage of the second electrode portion according to the initial voltage and the second compensation depth.

20. A display device, wherein: Comprising the display panel as claimed in claim 9.

Images