Display module, control method of display module and electronic equipment

Abstract

The invention provides a display module and electronic equipment. The display module comprises a display driving integrated circuit and a display panel, the display panel includes: an array substrate; the plurality of isolation structures are located on one side of the array substrate, and an isolation opening is defined by the isolation structures; the isolation structure has conductivity; the plurality of isolation structures are divided into at least two groups, and the isolation structures in different groups are electrically isolated from each other; the display driving integrated circuit is respectively connected with each group of isolation structures, and the display driving integrated circuit is used for providing an independent common voltage for each group of isolation structures according to a received display brightness value instruction. According to the embodiment of the invention, under the condition that the isolation structure is arranged to realize the independence of the common electrode of each sub-pixel, the independent common voltage is provided for different groups of sub-pixels through the display driving integrated circuit, so that the common voltage can be configured more flexibly for the sub-pixels made of different materials, and the overall energy consumption of the display module is reduced.

Description

Technical Field

[0001] The present application relates to the field of display technologies, and more particularly, to a display module, a control method for the display module, and an electronic device. Background Art

[0002] In an organic light-emitting diode (OLED) display panel, a power supply scheme in which each sub-pixel shares a cathode (ELVSS) is adopted. To ensure the display effect, the cathode (ELVSS) voltage setting is forced to follow the higher principle. Therefore, to a certain extent, the power consumption of the display panel is increased. Summary of the Invention

[0003] In order to overcome the above-mentioned deficiencies in the prior art, an object of the present application is to provide a display module, the display module includes a display driving integrated circuit and a display panel;

[0004] The display panel includes:

[0005] An array substrate;

[0006] A plurality of isolation structures located on one side of the array substrate, the isolation structures having conductivity; the plurality of isolation structures are divided into at least two groups, the isolation structures in the same group are electrically connected to each other, and the isolation structures in different groups are electrically isolated from each other;

[0007] The display driving integrated circuit is respectively connected to each group of the isolation structures, and the display driving integrated circuit is configured to provide an independent common voltage for each group of the isolation structures according to the received display brightness value instruction.

[0008] In some possible implementation manners, the display panel further includes:

[0009] A pixel defining layer located between the array substrate and the isolation structures; the pixel defining layer includes a plurality of pixel openings, the isolation structures enclose to form isolation openings, and the orthographic projection of the pixel openings on the array substrate is located within the orthographic projection of the isolation openings on the array substrate.

[0010] In some possible implementation manners, the display panel further includes:

[0011] A plurality of first electrodes arranged at intervals; the first electrodes are connected to pixel driving circuits in the array substrate; the pixel defining layer is located on a side of the first electrodes away from the array substrate, and the pixel openings expose the first electrodes;

[0012] A light-emitting material layer and a second electrode stacked in the pixel openings; the second electrode extends from within the pixel openings to be in electrical contact with the isolation structures.

[0013] In some possible implementation manners, the display panel further includes a first inorganic encapsulation layer located on a side of the second electrode away from the array substrate.

[0014] In some possible implementation manners, at least a part of the first inorganic encapsulation layer extends from within the pixel opening along a sidewall of the isolation structure toward a side of the isolation opening to a side of the isolation structure away from the array substrate.

[0015] In some possible implementation manners, among multiple isolation structures, isolation structures corresponding to pixel openings where light-emitting material layers of at least two different colors are located are in different groups.

[0016] In some possible implementation manners, the display panel further includes a first connection trace disposed on the same layer as the isolation structure, and isolation structures in the same group are connected to each other or connected to the display driving integrated circuit through the first connection trace;

[0017] In some possible implementation manners, the display panel further includes a second connection trace disposed on the same layer as the first electrode, and isolation structures in the same group are connected to each other or connected to the display driving integrated circuit through the second connection trace;

[0018] In some possible implementation manners, the display panel further includes a third connection trace located on the array substrate, and isolation structures in the same group are connected to each other or connected to the display driving integrated circuit through the third connection trace.

[0019] In some possible implementation manners, the display driving integrated circuit includes a brightness control module, a dynamic common voltage control module, and a first common voltage providing module;

[0020] The brightness control module is configured to receive a display brightness value instruction, and determine at least two common voltage values according to the display brightness value instruction and send the at least two common voltage values to the dynamic common voltage control module;

[0021] The dynamic common voltage control module is respectively connected to the brightness control module and the first common voltage providing module, and at least two different groups of the isolation structures are respectively connected to the first common voltage providing module; the dynamic common voltage control module is configured to control the first common voltage providing module to generate at least two independent common voltages according to the at least two common voltage values and respectively provide the at least two independent common voltages to different groups of the isolation structures.

[0022] In some possible implementation manners, the display module further includes a second common voltage providing module that operates independently of the display driving integrated circuit. The second common voltage providing module is connected to the brightness control module, and at least two different isolation structures are respectively connected to the second common voltage providing module;

[0023] The display module includes a first operating mode and a second operating mode;

[0024] In the first operating mode, the dynamic common voltage control module controls the first common voltage providing module to generate at least two independent common voltages according to at least two of the common voltage values, and respectively provides the at least two independent common voltages to different groups of the isolation structures;

[0025] In the second operating mode, the dynamic common voltage control module controls the second common voltage providing module to generate at least two independent common voltages according to at least two of the common voltage values, and respectively provides the at least two independent common voltages to different groups of the isolation structures.

[0026] In some possible implementation manners, the display driving integrated circuit further includes a power supply switching module. The power supply switching module is configured to select to provide a common voltage for each group of the isolation structures by the first common voltage providing module in the first operating mode, and provide a common voltage for each group of the isolation structures by the second common voltage providing module in the second operating mode.

[0027] In some possible implementation manners, the array substrate includes a plurality of pixel driving circuits, and the plurality of pixel driving circuits are divided into at least two groups;

[0028] The display driving integrated circuit is further respectively connected to each group of the pixel driving circuits. The display driving integrated circuit is configured to provide an independent initialization voltage for each group of the pixel driving circuits according to a received display brightness value instruction, and is used to initialize the first electrode.

[0029] In some possible implementation manners, one group of the pixel driving circuits corresponds to one group of the isolation structures.

[0030] In some possible implementation manners, the display driving integrated circuit further includes a dynamic initialization voltage control module. The dynamic initialization voltage control module is connected to the brightness control module; the brightness control module is configured to receive a display brightness value instruction, and determine at least two initialization voltage values according to the display brightness value instruction and send the at least two initialization voltage values to the dynamic initialization voltage control module;

[0031] At least two different groups of the pixel driving circuits are respectively connected to the dynamic initialization voltage control module; the dynamic initialization voltage control module is configured to generate at least two independent initialization voltages according to at least two of the initialization voltage values, and respectively provide them to different groups of the pixel driving circuits.

[0032] Another object of the present application is to provide a control method for a display module, which is applied to control the display module provided by the present application. The method includes:

[0033] Obtain a display brightness value instruction;

[0034] Determine at least two common voltage values according to the display brightness value instruction;

[0035] Generate at least two independent common voltages according to at least two of the common voltage values, and respectively provide them to different groups of the isolation structures in the display module.

[0036] In some possible implementation manners, the display driving integrated circuit includes a first common voltage providing module, and the display module further includes a second common voltage providing module that operates independently of the display driving integrated circuit;

[0037] The method further includes:

[0038] Obtain working mode indication information;

[0039] According to the working mode indication information, select to generate at least two independent common voltages by the first common voltage providing module or the second common voltage providing module, and respectively provide them to different groups of the isolation structures.

[0040] In some possible implementation manners, the array substrate includes a plurality of pixel driving circuits, and the plurality of pixel driving circuits are divided into at least two groups. The method further includes:

[0041] Obtain a display brightness value instruction;

[0042] Determine at least two initialization voltage values according to the display brightness value instruction;

[0043] Generate at least two independent initialization voltages according to at least two of the initialization voltage values, and respectively provide them to different groups of the pixel driving circuits in the display module.

[0044] Another object of the present application is to provide a display module, which includes a display driving integrated circuit and a display panel;

[0045] The display panel includes:

[0046] An array substrate;

[0047] A plurality of pixel units located on one side of the array substrate, and the plurality of pixel units are divided into at least two groups. The display driving integrated circuit is respectively connected to each group of the pixel units, and the display driving integrated circuit is configured to provide independent common voltages for each group of the pixel units according to the received display brightness value instruction.

[0048] In some possible implementation manners, the pixel unit includes a first electrode, a light-emitting material layer, and a second electrode that are sequentially stacked. The first electrode is connected to a pixel driving circuit in the array substrate, and the second electrode is connected to the display driving integrated circuit;

[0049] Preferably, the light-emitting material layers of the pixel units in the same group have the same light-emitting color, and the light-emitting material layers of the pixel units in different groups have different light-emitting colors.

[0050] In some possible implementation manners, the display driving integrated circuit includes a brightness control module, a dynamic common voltage control module, and a first common voltage providing module;

[0051] The brightness control module is configured to receive a display brightness value instruction and determine at least two common voltage values according to the display brightness value instruction and send them to the dynamic common voltage control module;

[0052] The dynamic common voltage control module is respectively connected to the brightness control module and the first common voltage providing module, and at least two different groups of the pixel units are respectively connected to the first common voltage providing module; the dynamic common voltage control module is configured to control the first common voltage providing module to generate at least two independent common voltages according to at least two of the common voltage values and provide them to different groups of the pixel units;

[0053] Preferably, the display module further includes a second common voltage providing module that operates independently of the display driving integrated circuit. The second common voltage providing module is connected to the brightness control module, and at least two different groups of the pixel units are respectively connected to the second common voltage providing module;

[0054] The display module includes a first working mode and a second working mode;

[0055] In the first working mode, the dynamic common voltage control module controls the first common voltage providing module to generate at least two independent common voltages according to at least two of the common voltage values and provide them to different groups of the pixel units;

[0056] In the second working mode, the dynamic common voltage control module controls the second common voltage providing module to generate at least two independent common voltages according to at least two of the common voltage values and respectively provide them to different groups of the pixel units;

[0057] Preferably, the display driving integrated circuit further includes a power supply switching module, and the power supply switching module is configured to select to provide a common voltage for each group of the pixel units by the first common voltage providing module in the first working mode, and provide a common voltage for each group of the pixel units by the second common voltage providing module in the second working mode;

[0058] Preferably, the array substrate includes a plurality of pixel driving circuits, and the plurality of pixel driving circuits are divided into at least two groups;

[0059] The display driving integrated circuit is further respectively connected to each group of the pixel driving circuits, and the display driving integrated circuit is configured to provide an independent initialization voltage for each group of the pixel driving circuits according to a received display brightness value instruction for initializing the first electrode;

[0060] Preferably, one group of the pixel driving circuits corresponds to one group of the pixel units;

[0061] Preferably, the display driving integrated circuit further includes a dynamic initialization voltage control module, and the dynamic initialization voltage control module is connected to the brightness control module; the brightness control module is configured to receive a display brightness value instruction and determine at least two initialization voltage values according to the display brightness value instruction and send them to the dynamic initialization voltage control module;

[0062] At least two different groups of the pixel driving circuits are respectively connected to the dynamic initialization voltage control module; the dynamic initialization voltage control module is configured to generate at least two independent initialization voltages according to at least two of the initialization voltage values and respectively provide them to different groups of the pixel driving circuits.

[0063] Another object of the present application is to provide an electronic device, and the electronic device includes the display module provided by the present application.

[0064] In some possible implementation manners, the electronic device further includes an interaction module or an ambient light detection module; the interaction module is configured to generate a corresponding display brightness value instruction in response to a user operation, and the ambient light detection module is configured to detect the ambient light intensity and generate a corresponding display brightness value instruction.

[0065] Compared with the prior art, the present application has the following beneficial effects:

[0066] The present application provides a display module, a control method for the display module, and an electronic device. When an isolation structure is provided to make the common electrodes of each sub-pixel independent, an independent common voltage is provided for different groups of sub-pixels by a display driving integrated circuit. In this way, the common voltage can be more flexibly configured for sub-pixels with different materials, thereby reducing the overall power consumption of the display module. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0068] Figure 1 One of the schematic cross-sectional views of the display panel provided in this embodiment;

[0069] Figure 2 Another schematic cross-sectional view of the display panel provided in this embodiment;

[0070] Figure 3 Schematic diagram of the grouped connection of the display panel provided in this embodiment;

[0071] Figure 4 One of the schematic cross-sectional views of the display panel provided in this embodiment;

[0072] Figure 5 Another schematic cross-sectional view of the display panel provided in this embodiment;

[0073] Figure 6 One of the schematic cross-sectional views of the display panel provided in this embodiment;

[0074] Figure 7 One of the schematic circuit diagrams of the display module provided in this embodiment;

[0075] Figure 8 Another schematic circuit diagram of the display module provided in this embodiment;

[0076] Figure 9 Schematic diagram of the mapping relationship record of the brightness control module provided in this embodiment;

[0077] Figure 10 One of the schematic circuit diagrams of the display module provided in this embodiment;

[0078] Figure 11 Another schematic circuit diagram of the display module provided in this embodiment;

[0079] Figure 12Schematic diagram five of the circuit structure of the display module provided in this embodiment;

[0080] Figure 13 Schematic diagram one of the step - flow of the control method of the display module provided in this embodiment.

[0081] Figure 14 Schematic diagram two of the step - flow of the control method of the display module provided in this embodiment.

[0082] Figure 15 Schematic diagram three of the step - flow of the control method of the display module provided in this embodiment.

[0083] Icons: 100 - display panel; 110 - substrate; 120 - first electrode; 130 - pixel defining layer; 141 - isolation structure; 151 - light - emitting material layer; 152 - second electrode; 153 - first inorganic encapsulation layer; 160 - organic encapsulation layer; 170 - second inorganic encapsulation layer; 401 - first connection trace; 402 - second connection trace; 403 - third connection trace; 200 - display driver integrated circuit; 210 - brightness control module; 220 - dynamic common voltage control module; 230 - first common voltage providing module; 240 - power supply switching module; 250 - dynamic initialization voltage control module; 410 - second common voltage providing module. Detailed implementation manners

[0084] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. The components of the embodiments of the present application described and illustrated in the drawings here can be arranged and designed in various different configurations.

[0085] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the present application claimed, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts fall within the scope of protection of the present application.

[0086] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0087] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the inventive product is customarily placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In addition, terms such as "first", "second", "third", etc. are only used for differential description and cannot be construed as indicating or implying relative importance.

[0088] It should be noted that, without conflict, different features in the embodiments of the present application can be combined with each other.

[0089] Through research by the inventor, it is found that in some existing OLED display panels, the anodes of each sub-pixel are usually connected to different pixel driving circuits in the array substrate to independently obtain the driving voltage (ELVDD). And the cathodes of each sub-pixel are usually a whole-surface connected transparent electrode, that is, the cathodes of each sub-pixel are all connected to a common voltage (ELVSS). In this case, some sub-pixels always require different driving voltages due to the different materials of their light-emitting material layers. To ensure the display effects of all sub-pixels, the cathode voltage is also forced to follow the higher principle, resulting in an increase in the power consumption of the display panel to a certain extent. Patent PCT / CN2023 / 134518, Patent 202310759370.2, Patent 202310740412.8, Patent 202310707209.0, and Patent 202311346196.5 record the related technical solutions of the isolation structure, the content of which is incorporated into the present application by reference for reference.

[0090] In view of this, this embodiment provides a solution that can reduce the power consumption of the display panel. The solution provided in this embodiment will be elaborated in detail below.

[0091] First Embodiment

[0092] This embodiment provides a display module, and the display module includes a Display Driver Integrated Circuit (DDIC) and a display panel.

[0093] Please refer to Figure 1 , the display panel 100 includes an array substrate 110 and a plurality of isolation structures 141 located on one side of the array substrate 110.

[0094] The array substrate 110 may include multiple film layer structures, such as a substrate, a buffer layer, an active layer, multiple metal layers, multiple insulating layers, a planarization layer, etc. Multiple film layer structures of the array substrate 110 may form multiple thin film transistors (TFTs) at different positions of the array substrate 110. The thin film transistors may cooperate with each other to form multiple pixel driving circuits, and the pixel driving circuits are used to drive pixels to emit light.

[0095] The isolation structure 141 encloses to form an isolation opening. The isolation structure 141 has conductivity, and multiple isolation structures 141 are divided into at least two groups, and the isolation structures 141 in different groups are electrically isolated from each other.

[0096] Please refer to again Figure 1 , in a possible implementation manner, the display panel 100 provided in this embodiment may further include a pixel defining layer 130.

[0097] The pixel defining layer 130 is located between the array substrate 110 and the isolation structure 141. The pixel defining layer 130 includes a pixel opening, and the isolation structure 141 encloses to form an isolation opening. The orthographic projection of the pixel opening on the array substrate is located within the orthographic projection of the isolation opening on the array substrate.

[0098] Please refer to again Figure 1 , in a possible implementation manner, the display panel 100 provided in this embodiment may further include a first electrode 120, a light-emitting material layer 151, and a second electrode 152.

[0099] The first electrode 120 is located on the side of the array substrate 110 where the pixel defining layer 130 is provided. The pixel opening exposes the first electrode 120, and adjacent first electrodes 120 are isolated from each other by the pixel defining layer 130.

[0100] Multiple first electrodes 120 are arranged at intervals, and each first electrode 120 may be respectively connected to a pixel driving circuit in the array substrate 110.

[0101] At least part of the light-emitting material layer 151 and the second electrode 152 is located within the pixel opening, and they are stacked in sequence from the direction close to the array substrate 110 to the direction away from the array substrate 110. Among them, the light-emitting material layer 151 is in electrical contact with the first electrode 120, and the light-emitting material layer 151 is located between the first electrode 120 and the second electrode 152.

[0102] In this embodiment, the isolation structure 141 is configured to disconnect the light-emitting material layer 151 and the second electrode 152 between adjacent pixel openings when the light-emitting material layer 151 and the second electrode 152 of the display panel 100 are formed by full-layer evaporation. As a result, the manufacturing process of the display panel 100 can adopt a method of multiple full-layer evaporation followed by selective etching to form the light-emitting material layer 151 and the second electrode 152 of different color sub-pixels. In this case, in the display module provided in this embodiment, the second electrodes 152 corresponding to adjacent sub-pixels are disconnected at the isolation structure 141 and are not directly electrically connected.

[0103] The isolation structure 141 has conductivity, and at least a part of the second electrode 152 extends from within the pixel opening to the side of the pixel defining layer 130 away from the array substrate 110 and is in electrical contact with the isolation structure 141.

[0104] In this embodiment, the first electrode 120 can obtain a driving voltage (ELVDD) from the pixel driving circuit, and the second electrode 152 can obtain a common voltage (ELVSS) from the display driving integrated circuit 200. When there is a potential difference between the first electrode 120 and the second electrode 152, the light-emitting material layer 151 is driven to emit light.

[0105] Optionally, the display panel 100 further includes a first inorganic encapsulation layer 153 on the side of the second electrode 152 away from the array substrate 110. For example, at least a part of the first inorganic encapsulation layer 153 extends from within the pixel opening along the side wall of the isolation structure 141 toward the side of the isolation opening to the side of the isolation structure 141 away from the array substrate 110.

[0106] Further, please refer to Figure 2 , the display panel 10 may further include an organic encapsulation layer 160 on the side of the first inorganic encapsulation layer 153 away from the array substrate 110 and a second inorganic encapsulation layer 170 on the side of the organic encapsulation layer 160 away from the array substrate 110. The first inorganic encapsulation layer 153 and the second inorganic encapsulation layer 170 can be formed by chemical vapor deposition, and the organic encapsulation layer 160 can be formed by inkjet printing.

[0107] Please refer to Figure 3 , the display driving integrated circuit 200 is respectively connected to each group of the isolation structures 141, and the display driving integrated circuit 200 is configured to provide an independent common voltage for each group of the isolation structures 141 according to the received display brightness value instruction.

[0108] For example, the isolation structures 141 may be arranged at intervals, with gaps between adjacent isolation structures 141. The isolation structures 141 in the same group may be connected to each other through connection traces. The connection traces may also connect the isolation structures 141 in the same group into an independent common voltage supply circuit and independently connect to the display driver integrated circuit 200, so that the display driver integrated circuit 200 can provide an independent common voltage for each group of the isolation structures 141. In this embodiment, the common voltages obtained by different groups of the isolation structures 141 may be the same or different.

[0109] Specifically, the display driver integrated circuit 200 may receive a display brightness value instruction, and the display brightness value instruction may include an instruction indicating a display brightness value (DBV) generated by other application control modules. Then, the display driver integrated circuit 200 may independently provide at least two groups of common voltages to supply different groups of the isolation structures 141 according to the display brightness value instruction. In this way, the second electrodes 152 of different groups may obtain independent common voltages from different groups of the isolation structures 141.

[0110] Based on the above design, in the display module provided in this embodiment, when the isolation structures 141 are provided to make the second electrodes 152 of each sub-pixel independent, the display driver integrated circuit 200 provides independent common voltages for different groups of sub-pixels. In this way, the common voltage can be more flexibly configured for sub-pixels with different materials, thereby reducing the overall power consumption of the display module.

[0111] In a possible implementation, among the multiple isolation structures 141, the isolation structures 141 corresponding to the pixel openings where the light-emitting material layers 151 of at least two different colors are located are in different groups. For example, the display module includes sub-pixels of red (R), green (G), and blue (B). The isolation structures 141 corresponding to sub-pixels of different colors are in different groups. In this way, the display driver integrated circuit 200 can provide relatively independent common voltages for sub-pixels of different colors, so as to adapt to the different common voltages required by sub-pixels of different colors due to the materials of the light-emitting material layers 151, thereby reducing the power consumption waste caused by providing a unified common voltage.

[0112] In a possible implementation, the connection traces connecting the isolation structures 141 may be located in different film layers in different cases.

[0113] In one example, the display panel 100 further includes a first connection trace 401 disposed on the same layer as the isolation structure 141. The isolation structures 141 in the same group are interconnected through the first connection trace 401 or connected to the display driver integrated circuit 200.

[0114] For example, please refer back to Figure 2 and Figure 3 , Figure 2 as Figure 3 the cross-sectional view taken at the A-A position in

[0115] In another example, the display panel 100 further includes a second connection trace 402 disposed on the same layer as the first electrode 120. The isolation structures 141 are interconnected through the second connection trace 402 or connected to the display driver integrated circuit 200.

[0116] For example, please refer to Figure 4 , in forming the first electrodes 120 spaced apart from each other, a second connection trace 402 disposed on the same layer as the first electrodes 120 may be formed between adjacent first electrodes 120. The second connection trace 402 may extend between the first electrodes 120. The isolation structure 141 may be electrically connected to the second connection trace 402 through a through hole penetrating the pixel defining layer 130, so that the second connection trace 402 can connect the isolation structures 141 in the same group or connect the isolation structures 141 to the display driver integrated circuit 200.

[0117] In yet another example, the display panel 100 further includes a third connection trace 403 located on the array substrate 110. The isolation structures 141 are interconnected through the third connection trace 403 or connected to the display driver integrated circuit 200.

[0118] For example, please refer to Figure 5, the array substrate 110 may include multiple metal wiring layers. The third connection wiring 403 may be located in one or more wiring layers. The isolation structure 141 may be connected to the third connection wiring 403 through a via hole penetrating at least a part of the planarization layer or the insulating layer in the pixel defining layer 130 and the array substrate 110, so that the third connection wiring 403 can connect the isolation structures 141 in the same group or connect the isolation structure 141 to the display driving integrated circuit 200.

[0119] It should be noted that in this embodiment, the display panel 100 may have one or more of the first connection wiring 401, the second connection wiring 402, and the third connection wiring 403 at the same time. For example, please refer to Figure 6 , a plurality of connection wirings can cooperate with each other to form a bridging structure, thereby avoiding short-circuiting of the connection wirings at the same film layer.

[0120] In a possible implementation manner, please refer to Figure 7 , the display driving integrated circuit 200 includes a brightness control module 210, a dynamic common voltage control module 220, and a first common voltage providing module 230.

[0121] The brightness control module 210 is configured to receive a display brightness value instruction and determine at least two common voltage values according to the display brightness value instruction and send them to the dynamic common voltage control module 220.

[0122] The dynamic common voltage control module 220 is respectively connected to the brightness control module 210 and the first common voltage providing module 230. At least two different groups of the isolation structures 141 are respectively connected to the first common voltage providing module 230. The dynamic common voltage control module 220 is configured to control the first common voltage providing module 230 to generate at least two independent common voltages according to at least two of the common voltage values and respectively provide them to different groups of the isolation structures 141.

[0123] Further, please refer to Figure 8 , the display module further includes a second common voltage providing module 410 that operates independently of the display driving integrated circuit 200. The second common voltage providing module 410 is connected to the brightness control module 210. At least two different groups of the isolation structures 141 are respectively connected to the second common voltage providing module 410. The display module includes a first working mode and a second working mode.

[0124] In the first operating mode, the dynamic common voltage control module 220 controls the first common voltage providing module 230 to generate at least two independent common voltages according to at least two of the common voltage values, and respectively provides the at least two independent common voltages to different groups of the isolation structures 141.

[0125] In the second operating mode, the dynamic common voltage control module 220 controls the second common voltage providing module 410 to generate at least two independent common voltages according to at least two of the common voltage values, and respectively provides the at least two independent common voltages to different groups of the isolation structures 141.

[0126] The first common voltage providing module 230 may be a common voltage providing module integrated inside the display driving integrated circuit 200, and the second common voltage providing module 410 may be an external common voltage providing module independent of the display driving integrated circuit 200. For example, the second common voltage providing module 410 may be a power integrated circuit (Power Integrated Circuit, Power IC) or a module in the power integrated circuit.

[0127] The first operating mode may be a low power consumption mode. For example, the first operating mode may be an Always On Display (AOD) mode, or a screen-off display mode; the second operating mode may be a conventional display mode.

[0128] The first common voltage providing module 230 may provide internal supply common voltages to different groups of the isolation structures 141 in the first mode; the second common voltage providing module 410 may provide internal supply common voltages to different groups of the isolation structures 141 in the second mode.

[0129] Furthermore, in a possible implementation, the brightness control module 210 may store a mapping correspondence between the display brightness value and the common voltage value, and / or a mapping correspondence between the display brightness value and the initialization voltage value.

[0130] For example, please refer to Figure 9 , for each display brightness value (DBV_node or AOD), the mapping correspondence records the common voltage values (R_ELVSS, G_ELVSS, and B_ELVSS) and / or the initialization voltage values (R_Vref, G_Vref, and B_Vref) corresponding to the three color sub-pixels at the display brightness value.

[0131] Furthermore, please refer to Figure 10, in a possible implementation, the display driving integrated circuit 200 further includes a power supply switching module 240, and the power supply switching module 240 is configured to select to supply a common voltage to each group of the isolation structures 141 by the first common voltage supply module 230 in the first operating mode, and supply a common voltage to each group of the isolation structures 141 by the second common voltage supply module 410 in the second operating mode.

[0132] For example, please refer to Figure 11 The power supply switching module 240 may include a switching key corresponding to each group of the isolation structures 141, and the switching key can select to supply the voltage output by the first common voltage supply module 230 or the second common voltage supply module 410 to this group of isolation structures 141.

[0133] In a possible implementation, the array substrate 110 includes a plurality of pixel driving circuits, and the plurality of pixel driving circuits are divided into at least two groups. For example, the pixel driving circuits corresponding to different color sub-pixels may be divided into different groups.

[0134] Optionally, in this embodiment, one group of the pixel driving circuits corresponds to one group of the isolation structures 141.

[0135] The display driving integrated circuit 200 is also respectively connected to each group of the pixel driving circuits, and the display driving integrated circuit 200 is configured to provide independent initialization voltages for each group of the pixel driving circuits according to the received display brightness value instruction.

[0136] For example, please refer to Figure 12 , the display driving integrated circuit 200 further includes a dynamic initialization voltage control module 250, and the dynamic initialization voltage control module 250 is connected to the brightness control module 210. The brightness control module 210 is configured to receive a display brightness value instruction, and determine at least two initialization voltage values according to the display brightness value instruction and send them to the dynamic initialization voltage control module 250.

[0137] At least two different groups of the pixel driving circuits are respectively connected to the dynamic initialization voltage control module 250. The dynamic initialization voltage control module 250 is configured to generate at least two independent initialization voltages (Vref) according to the at least two initialization voltage values and supply them to different groups of the pixel driving circuits respectively.

[0138] In this way, in the display module provided in this embodiment, for different groups of sub-pixels, initialization voltages can be provided relatively independently, so as to improve the problem that the contrast and response indexes (such as ghosting) of different color sub-pixels cannot be taken into account at low brightness.

[0139] Second Embodiment

[0140] Please refer to Figure 13 , this embodiment provides a control method for a display module. This method can be used to control the display module provided in this embodiment, and this method may include the following steps.

[0141] Step S110, obtain a display brightness value instruction.

[0142] Step S120, determine at least two common voltage values according to the display brightness value instruction.

[0143] Step S130, generate at least two independent common voltages according to at least two of the common voltage values and respectively supply them to different groups of the isolation structures in the display module.

[0144] In this way, the common voltage can be more flexibly configured for sub-pixels with different materials, thereby reducing the overall power consumption of the display module.

[0145] Further, in some possible implementation manners, as Figures 10 to 12 shown, the display driving integrated circuit includes a first common voltage providing module, and the display module further includes a second common voltage providing module that operates independently of the display driving integrated circuit. On this basis, please refer to Figure 14 , before step S110 of the method provided in this embodiment, the following steps may further be included.

[0146] Step S101, obtain working mode indication information.

[0147] In this embodiment, the working mode indication information can be used to indicate that the display module provided in this embodiment operates in a low power consumption mode or a normal display mode.

[0148] Step S102, according to the working mode indication information, select to generate at least two independent common voltages by the first common voltage providing module or the second common voltage providing module and respectively supply them to different groups of the isolation structures.

[0149] In this embodiment, according to different working mode selections, one of the first common voltage providing module and the second common voltage providing module generates at least two independent common voltages and respectively supplies them to different groups of the isolation structures.

[0150] For example, in the low power consumption mode, select to generate at least two independent common voltages by the first common voltage providing module and respectively supply them to different groups of the isolation structures; while in the normal display mode, select to generate at least two independent common voltages by the second common voltage providing module and respectively supply them to different groups of the isolation structures.

[0151] Further, in some possible implementation manners, the array substrate includes a plurality of pixel driving circuits, and the plurality of pixel driving circuits are divided into at least two groups. On this basis, please refer to Figure 15 , the control method of the display module provided in this embodiment may further include the following steps.

[0152] Step S210, obtaining a display brightness value instruction.

[0153] Step S220, determining at least two initialization voltage values according to the display brightness value instruction.

[0154] Step S230, generating at least two independent initialization voltages according to the at least two initialization voltage values and respectively providing them to the pixel driving circuits of different groups in the display module.

[0155] In this way, in the display module provided in this embodiment, for sub-pixels of different groups, initialization voltages can be provided relatively independently, so as to improve the problem that the contrast and response indexes (such as ghosting) of different color sub-pixels cannot be taken into account at low brightness.

[0156] Third Embodiment

[0157] The present application further provides another display module, which includes a display driving integrated circuit and a display panel. The display panel includes an array substrate and a plurality of pixel units located on one side of the array substrate.

[0158] The plurality of pixel units are divided into at least two groups. The display driving integrated circuit is respectively connected to each group of pixel units, and the display driving integrated circuit is used to provide an independent common voltage for each group of pixel units according to the received display brightness value instruction.

[0159] For example, in addition to the isolation structure provided in the first embodiment, in this embodiment, other methods may also be used to enable different groups of pixel units to have a relatively independent common voltage power supply circuit.

[0160] On this basis, similar to the first embodiment, the display driving integrated circuit may be used to provide an independent common voltage for each group of pixel units according to the received display brightness value instruction. In this way, the common voltage can be configured more flexibly for sub-pixels of different materials, thereby reducing the overall power consumption of the display module.

[0161] In some possible implementation manners, the pixel unit includes a first electrode, a light-emitting material layer, and a second electrode that are sequentially stacked. The first electrode is connected to the pixel driving circuit in the array substrate, and the second electrode is connected to the display driving integrated circuit.

[0162] For example, in this embodiment, a vapor deposition method in cooperation with a photomask can be adopted to pattern the model where the second electrode is located, so that the second electrodes of different pixel units can be independent of each other, and the second electrodes of the pixel units in the same group can be directly connected to each other or connected to each other through other connection traces; or, the second electrodes of each pixel unit can be independent of each other, and each second electrode is connected to the display driving integrated circuit. In this way, the pixel driving circuit connection can provide independent common voltages for different groups of pixel units, or provide independent common voltages for each pixel unit based on grouping.

[0163] In some possible implementation manners, the light-emitting color of the light-emitting material layer of the pixel units in the same group is the same, and the light-emitting color of the light-emitting material layer of the pixel units in different groups is different. In this way, the display driving integrated circuit can provide relatively independent common voltages for pixel units of different colors, so as to adapt to the different common voltages required by pixel units of different colors due to the material of the light-emitting material layer, thereby reducing the power consumption waste caused by providing a unified common voltage.

[0164] In some possible implementation manners, the display driving integrated circuit includes a brightness control module, a dynamic common voltage control module, and a first common voltage providing module.

[0165] The brightness control module is configured to receive a display brightness value instruction, and determine at least two common voltage values according to the display brightness value instruction and send them to the dynamic common voltage control module.

[0166] The dynamic common voltage control module is respectively connected to the brightness control module and the first common voltage providing module, and at least two different groups of pixel units are respectively connected to the first common voltage providing module. The dynamic common voltage control module is configured to control the first common voltage providing module to generate at least two independent common voltages according to at least two common voltage values and provide them to different groups of pixel units respectively.

[0167] In some possible implementation manners, the display module further includes a second common voltage providing module independent of the operation of the display driving integrated circuit. The second common voltage providing module is connected to the brightness control module, and at least two different groups of pixel units are respectively connected to the second common voltage providing module.

[0168] The display module includes a first working mode and a second working mode.

[0169] In the first working mode, the dynamic common voltage control module controls the first common voltage providing module to generate at least two independent common voltages according to at least two common voltage values ​​and respectively provide them to different groups of pixel units.

[0170] In the second working mode, the dynamic common voltage control module controls the second common voltage providing module to generate at least two independent common voltages according to at least two common voltage values ​​and respectively provide them to different groups of pixel units.

[0171] In some possible implementations, the display driver integrated circuit also includes a power supply switching module, which is used to select the first common voltage providing module to provide a common voltage for each group of pixel units in the first operating mode, and the second common voltage providing module to provide a common voltage for each group of pixel units in the second operating mode.

[0172] In some possible implementations, the array substrate includes a plurality of pixel driving circuits, and the plurality of pixel driving circuits are divided into at least two groups.

[0173] The display driver integrated circuit is also connected to each group of the pixel driver circuits respectively, and is used to provide an independent initialization voltage for each group of the pixel driver circuits according to the received display brightness value instruction, so as to initialize the first electrode.

[0174] In some possible implementations, a group of the pixel driving circuits corresponds to a group of the pixel units.

[0175] In some possible implementations, the display driver integrated circuit further includes a dynamic initialization voltage control module, which is connected to the brightness control module. The brightness control module is used to receive a display brightness value instruction, and determine at least two initialization voltage values ​​according to the display brightness value instruction and send them to the dynamic initialization voltage control module.

[0176] At least two different groups of pixel driving circuits are respectively connected to the dynamic initialization voltage control module. The dynamic initialization voltage control module is used to generate at least two independent initialization voltages according to at least two initialization voltage values, and provide them to different groups of pixel driving circuits respectively.

[0177] That is, in this embodiment, the display driver integrated circuit can be used as in the first embodiment. Figures 7 to 12 The same or similar structures and working principles as those of the display driver integrated circuits are not described in detail in this embodiment.

[0178] The present application also provides an electronic device, which includes the display panel provided by the present application. The electronic device may include devices with display and touch functions such as mobile phones, tablet computers, smart wearable devices, televisions, laptop computers, and monitors.

[0179] In a possible manner, the electronic device further includes an interaction module or an ambient light detection module. The interaction module is used to generate a corresponding display brightness value instruction in response to a user operation, and the ambient light detection module is used to detect the ambient light intensity and generate a corresponding display brightness value instruction.

[0180] For example, the electronic device can generate the display brightness value instruction by receiving a user operation or automatically sensing the ambient light and send it to the display module. The display module can provide different common voltages and / or reference voltages for different groups of sub-pixels according to the display brightness value instruction.

[0181] In summary, the present application provides a display module, a control method of the display module, and an electronic device. When an isolation structure is set to make the common electrodes of each sub-pixel independent, the display driver integrated circuit provides independent common voltages for different groups of sub-pixels. In this way, the common voltage can be more flexibly configured for sub-pixels with different materials, thereby reducing the overall power consumption of the display module.

[0182] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0183] The above embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the invention patent should be subject to the appended claims.

Claims

1. A display module, characterized in that, The display module includes a display driving integrated circuit and a display panel; The display panel includes: An array substrate; A plurality of isolation structures located on one side of the array substrate, the isolation structures having conductivity; the plurality of isolation structures are divided into at least two groups, and the isolation structures in the same group are electrically connected to each other, and the isolation structures in different groups are electrically isolated from each other; The display driving integrated circuit is respectively connected to each group of the isolation structures, and the display driving integrated circuit is configured to provide an independent common voltage for each group of the isolation structures according to the received display brightness value instruction.

2. The display module according to claim 1, characterized in that, The display panel further includes: A pixel defining layer located between the array substrate and the isolation structures; the pixel defining layer includes a plurality of pixel openings, the isolation structures enclose to form an isolation opening, and the orthographic projection of the pixel opening on the array substrate is located within the orthographic projection of the isolation opening on the array substrate.

3. The display module according to claim 2, characterized in that, The display panel further includes: A plurality of first electrodes arranged at intervals; the first electrodes are connected to pixel driving circuits in the array substrate; the pixel defining layer is located on the side of the first electrodes away from the array substrate, and the pixel openings expose the first electrodes; A light-emitting material layer and a second electrode stacked inside the pixel openings; the second electrode extends from inside the pixel openings to be in electrical contact with the isolation structures.

4. The display module according to claim 3, characterized in that, The display panel further includes a first inorganic encapsulation layer located on the side of the second electrode away from the array substrate.

5. The display module according to claim 4, characterized in that, At least a part of the first inorganic encapsulation layer extends from inside the pixel openings along the side walls of the isolation structures toward the side of the isolation opening to the side of the isolation structures away from the array substrate.

6. The display module according to claim 3, characterized in that, Among the plurality of isolation structures, the isolation structures corresponding to the pixel openings where the light-emitting material layers of at least two different colors are located are in different groups.

7. The display module according to claim 3, characterized in that, The display panel further includes a first connection trace provided on the same layer as the isolation structures, and the isolation structures in the same group are connected to each other or connected to the display driving integrated circuit through the first connection trace.

8. The display module according to claim 3, characterized in that, The display panel further includes a second connection trace provided on the same layer as the first electrodes, and the isolation structures in the same group are connected to each other or connected to the display driving integrated circuit through the second connection trace.

9. The display module according to claim 3, characterized in that, The display panel further includes a third connection trace located on the array substrate, and the isolation structures in the same group are connected to each other or connected to the display driving integrated circuit through the third connection trace.

10. The display module according to claim 1, characterized in that, The display driving integrated circuit includes a brightness control module, a dynamic common voltage control module, and a first common voltage providing module; The brightness control module is configured to receive a display brightness value instruction, and determine at least two common voltage values according to the display brightness value instruction and send them to the dynamic common voltage control module; The dynamic common voltage control module is respectively connected to the brightness control module and the first common voltage providing module, and at least two different isolation structures are respectively connected to the first common voltage providing module; the dynamic common voltage control module is configured to control the first common voltage providing module to generate at least two independent common voltages according to at least two of the common voltage values and respectively supply them to different groups of the isolation structures.

11. The display module according to claim 10, characterized in that, The display module further includes a second common voltage providing module that operates independently of the display driver integrated circuit, the second common voltage providing module is connected to the brightness control module, and at least two different isolation structures are respectively connected to the second common voltage providing module; The display module includes a first operating mode and a second operating mode; In the first operating mode, the dynamic common voltage control module controls the first common voltage providing module to generate at least two independent common voltages according to at least two of the common voltage values and respectively supply them to different groups of the isolation structures; In the second operating mode, the dynamic common voltage control module controls the second common voltage providing module to generate at least two independent common voltages according to at least two of the common voltage values and respectively supply them to different groups of the isolation structures.

12. The display module according to claim 10, characterized in that, The display driver integrated circuit further includes a power supply switching module, and the power supply switching module is configured to select to supply the common voltage to each group of the isolation structures by the first common voltage providing module in the first operating mode and by the second common voltage providing module in the second operating mode.

13. The display module according to claim 3, characterized in that, The array substrate includes a plurality of pixel driving circuits, and the plurality of pixel driving circuits are divided into at least two groups; The display driver integrated circuit is further respectively connected to each group of the pixel driving circuits, and the display driver integrated circuit is configured to provide an independent initialization voltage to each group of the pixel driving circuits according to the received display brightness value instruction for initializing the first electrode.

14. The display module according to claim 13, characterized in that,One group of the pixel driving circuits corresponds to one group of the isolation structures.

15. The display module according to claim 13, wherein The display driver integrated circuit further includes a dynamic initialization voltage control module, and the dynamic initialization voltage control module is connected to the brightness control module; the brightness control module is configured to receive the display brightness value instruction and determine at least two initialization voltage values according to the display brightness value instruction and send them to the dynamic initialization voltage control module; At least two different groups of the pixel driving circuits are respectively connected to the dynamic initialization voltage control module; the dynamic initialization voltage control module is configured to generate at least two independent initialization voltages according to at least two of the initialization voltage values and respectively supply them to different groups of the pixel driving circuits.

16. A control method for a display module, wherein Applied to the display module according to any one of claims 1-15, the method includes: Obtaining a display brightness value instruction; Determining at least two common voltage values according to the display brightness value instruction; Generating at least two independent common voltages according to at least two of the common voltage values and respectively supplying them to different groups of the isolation structures in the display module.

17. The control method for a display module according to claim 16, wherein The display driving integrated circuit includes a first common voltage providing module, and the display module further includes a second common voltage providing module that operates independently of the display driving integrated circuit; The method further includes: Obtaining working mode indication information; According to the working mode indication information, selecting to generate at least two independent common voltages by the first common voltage providing module or the second common voltage providing module and respectively providing them to different groups of the isolation structures.

18. The control method for a display module according to claim 16, wherein the array substrate includes a plurality of pixel driving circuits, and the plurality of pixel driving circuits are divided into at least two groups; the method further includes: Obtaining a display brightness value instruction; Determining at least two initialization voltage values according to the display brightness value instruction; Generating at least two independent initialization voltages according to at least two of the initialization voltage values and respectively providing them to different groups of pixel driving circuits in the display module.

19. A display module, wherein The display module includes a display driving integrated circuit and a display panel; The display panel includes: An array substrate; A plurality of pixel units located on one side of the array substrate, and the plurality of pixel units are divided into at least two groups. The display driving integrated circuit is respectively connected to each group of pixel units, and the display driving integrated circuit is used to provide an independent common voltage for each group of pixel units according to the received display brightness value instruction.

20. The display module according to claim 19, wherein The pixel unit includes a first electrode, a light-emitting material layer, and a second electrode that are sequentially stacked. The first electrode is connected to a pixel driving circuit in the array substrate, and the second electrode is connected to the display driving integrated circuit; Preferably, the light-emitting materials of the light-emitting material layers of the pixel units in the same group have the same color, and the light-emitting materials of the light-emitting material layers of the pixel units in different groups have different colors.

21. The display module according to claim 20, wherein The display driving integrated circuit includes a brightness control module, a dynamic common voltage control module, and a first common voltage providing module; The brightness control module is used to receive a display brightness value instruction and determine at least two common voltage values according to the display brightness value instruction and send them to the dynamic common voltage control module; The dynamic common voltage control module is respectively connected to the brightness control module and the first common voltage providing module, and at least two different groups of pixel units are respectively connected to the first common voltage providing module; the dynamic common voltage control module is used to control the first common voltage providing module to generate at least two independent common voltages according to at least two of the common voltage values and respectively provide them to different groups of pixel units; Preferably, the display module further includes a second common voltage providing module that operates independently of the display driving integrated circuit. The second common voltage providing module is connected to the brightness control module, and at least two different groups of pixel units are respectively connected to the second common voltage providing module; The display module includes a first working mode and a second working mode; In the first working mode, the dynamic common voltage control module controls the first common voltage providing module to generate at least two independent common voltages according to at least two of the common voltage values and respectively provide them to different groups of pixel units; In the second working mode, the dynamic common voltage control module controls the second common voltage providing module to generate at least two independent common voltages according to at least two of the common voltage values, and respectively provides the at least two independent common voltages to different groups of the pixel units; Preferably, the display driving integrated circuit further includes a power supply switching module, and the power supply switching module is configured to select to provide a common voltage for each group of the pixel units by the first common voltage providing module in the first working mode, and provide a common voltage for each group of the pixel units by the second common voltage providing module in the second working mode; Preferably, the array substrate includes a plurality of pixel driving circuits, and the plurality of pixel driving circuits are divided into at least two groups; The display driving integrated circuit is further respectively connected to each group of the pixel driving circuits, and the display driving integrated circuit is configured to provide an independent initialization voltage for each group of the pixel driving circuits according to a received display brightness value instruction for initializing the first electrode; Preferably, one group of the pixel driving circuits corresponds to one group of the pixel units; Preferably, the display driving integrated circuit further includes a dynamic initialization voltage control module, and the dynamic initialization voltage control module is connected to the brightness control module; the brightness control module is configured to receive a display brightness value instruction, and determine at least two initialization voltage values according to the display brightness value instruction and send the at least two initialization voltage values to the dynamic initialization voltage control module; At least two different groups of the pixel driving circuits are respectively connected to the dynamic initialization voltage control module; the dynamic initialization voltage control module is configured to generate at least two independent initialization voltages according to at least two of the initialization voltage values, and respectively provide the at least two independent initialization voltages to different groups of the pixel driving circuits.

22. An electronic device, characterized in that, The electronic device includes the display module according to any one of claims 1-15 or the display module according to any one of claims 19-21.

23. The electronic device according to claim 22, characterized in that, The electronic device further includes an interaction module and / or an ambient light detection module; the interaction module is configured to generate a corresponding display brightness value instruction in response to a user operation, and the ambient light detection module is configured to detect an ambient light intensity and generate a corresponding display brightness value instruction.

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