Display module and display device

Abstract

The application provides a display module and a display device. The display module comprises a display panel, a first touch feedback structure arranged on the side of the display panel in the light-emitting direction, and the first touch feedback structure comprises a first elastic layer, a first electrode and a second electrode. The first electrode array is arranged on the side of the first elastic layer away from the display panel, and the second electrode array is arranged on the side of the first elastic layer facing the display panel. In a first state, the charges of the first electrode and the second electrode are opposite, and in a second state, the charges of the first electrode and the second electrode are the same, or at least one of the first electrode and the second electrode is powered off. In the first state, opposite charges are generated on the first electrode and the second electrode, and the charges of different natures attract each other, compress the first elastic layer, eliminate the elastic force of the first elastic layer and perform normal display. In the second state, the same charges or the power-off are generated on the first electrode and the second electrode, the first elastic layer is released, and the elasticity of the first elastic layer provides feedback for touch control.

Description

Technical Field

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

[0002] Currently, in PC display technology, human-computer interaction is performed through a keyboard or a mouse. During the interaction process, the keyboard or the mouse will provide corresponding feedback to the user, especially feedback to the user's fingertips, to ensure whether the interaction is performed.

[0003] However, in medium and large-sized display technologies such as tablets, in most usage scenarios, the display panel is directly touched by the user's fingers. The touch sensor in the display panel controls the corresponding pixel units through self-induction or mutual induction to achieve human-computer interaction. However, compared with a keyboard or mouse, especially when typing, the process of using touch for human-computer interaction lacks interactive feedback, that is, the finger generally cannot sense whether the touch is successful, and can only determine whether the touch is successful by observing the corresponding touch interface, which is inconsistent with the user's usage habits. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide a display module and a display device that overcome the above problems or at least partially solve the above problems.

[0005] Based on the above objectives, the first aspect of the present application provides a display module, including:

[0006] Display panel;

[0007] The first touch feedback structure is arranged on the light emitting direction side of the display panel, and includes a first elastic layer, a first electrode and a second electrode. The first electrode array is arranged on the side of the first elastic layer away from the display panel, and the second electrode array is arranged on the side of the first elastic layer facing the display panel. In a first state, the charges of the first electrode and the second electrode are opposite. In a second state, the charges of the first electrode and the second electrode are the same, or at least one of the first electrode and the second electrode is de-energized.

[0008] Optionally, the display panel includes a first area and a second area, and a side of the first area adjacent to the second area forms a boundary area;

[0009] The display panel is provided with an auxiliary protection structure away from the light-emitting direction, the auxiliary protection structure comprises a second elastic layer, a third electrode and a fourth electrode, the third electrode array is arranged on the side of the second elastic layer away from the display panel, and the fourth electrode array is arranged on the side of the second elastic layer facing the display panel, in the third state, the charges of the third electrode and the fourth electrode are opposite, in the fourth state, the charges of the third electrode and the fourth electrode are the same, or at least one of the third electrode and the fourth electrode is powered off.

[0010] Optionally, the first elastic layer is provided with a first line away from the display panel, and each first electrode is controlled individually through the first line.

[0011] The first elastic layer is provided with a second line towards the display panel, and the second electrodes are connected in series through the second line.

[0012] Or the first elastic layer is provided with a first line away from the display panel, and the first electrodes are connected in series through the first line.

[0013] The first elastic layer is provided with a second line towards the display panel, and each second electrode is controlled individually through the second line.

[0014] Optionally, in the second state, the region with the same charge between the first electrode and the second electrode covers at least the display screen of the display panel.

[0015] Optionally, the first electrode, the second electrode, the first line and the second line are all transparent conductive materials, and the first elastic layer is a transparent insulating material.

[0016] Optionally, the first elastic layer is located in the range of the orthographic projection of the display panel.

[0017] Optionally, the display panel comprises pixel units arranged in an array, and a touch layer is arranged between the pixel units and the first touch feedback structure.

[0018] The first electrode and the second electrode are symmetrically arranged along the first elastic layer, and each first electrode and second electrode corresponds to the pixel unit.

[0019] Optionally, one side of the display panel is provided with a wiring area and a control module arranged in the wiring area, the control module is connected with a power supply, and the first line and the second line extend to the wiring area and are connected with the control module.

[0020] Optionally, a cover film is provided on a side of the first touch feedback structure away from the display panel.

[0021] Optionally, the orthographic projection of the auxiliary protection structure on the display panel at least covers the boundary area, and the orthographic projection of the second elastic layer on the display panel is located within the orthographic projection range of the display panel.

[0022] Optionally, a third circuit is provided on a side of the second elastic layer away from the display panel, and each of the third electrodes is individually controlled by the third circuit;

[0023] A fourth circuit is provided on a side of the second elastic layer facing the display panel, and the fourth electrodes are connected in series via the fourth circuit;

[0024] or a third circuit is provided on a side of the second elastic layer away from the display panel, and the third electrodes are connected in series via the third circuit;

[0025] A fourth circuit is provided on a side of the second elastic layer facing the display panel, and each of the fourth motors is independently controlled by the fourth circuit.

[0026] Optionally, a wiring area and a control module arranged in the wiring area are provided on one side of the display panel, and the control module is connected to a power supply;

[0027] The display panel includes a base substrate facing the auxiliary protection structure, an extension section is provided on the side of the base substrate facing the wiring area, an opening is provided on the extension section and passes through the extension section, and the third circuit and the fourth circuit are connected to the control module through the opening.

[0028] Optionally, a wiring area and a control module arranged in the wiring area are provided on one side of the display panel, and the control module is connected to a power supply;

[0029] The third line and the fourth line extend to the routing area and are connected to the control module.

[0030] In a second aspect of the present application, a display device is provided, comprising the display module as described in the first aspect;

[0031] a protective housing, disposed on a side of the display module away from a light-emitting direction and covering a side frame of the display module, the protective housing including a third area and a fourth area, the fourth area surrounding or partially surrounding the third area;

[0032] A second touch feedback structure is arranged on the side of the third region of the protective shell away from the display module, the second touch feedback structure comprises a third elastic layer, a fifth electrode array and a sixth electrode array, the fifth electrode array is arranged on the side of the third elastic layer away from the protective shell, the sixth electrode array is arranged on the side of the third elastic layer away from the protective shell, in the fifth state, the fifth electrode and the sixth electrode have opposite charges, in the sixth state, the fifth electrode and the sixth electrode have the same charge, or at least one of the fifth electrode and the sixth electrode is powered off.

[0033] As can be seen from the above, the display module and the display device provided by the application, by arranging the touch feedback structure on the side of the display panel away from the light emitting direction, in the first state, opposite charges are generated on the first electrode and the second electrode, and the charges of different natures attract each other, compressing the first elastic layer, eliminating the elastic force of the first elastic layer, and performing normal display, in the second state, the same charge is generated on the first electrode and the second electrode or at least one of the first electrode and the second electrode is powered off, releasing the first elastic layer, and the elasticity of the first elastic layer provides feedback for touch.

[0034] The auxiliary protection structure is arranged on the side of the display panel away from the light emitting direction, in the third state, opposite charges are generated on the third electrode and the fourth electrode, and the charges of different natures attract each other, compressing the second elastic layer, eliminating the elastic force of the first elastic layer, and performing normal display, in the fourth state, the same charge is generated on the third electrode and the fourth electrode or at least one of the third electrode and the fourth electrode is powered off, releasing the second elastic layer, and the elasticity of the second elastic layer provides auxiliary protection for the bending of the display panel.

[0035] The second touch feedback structure is arranged on the side of the protective shell of the display device away from the display panel, in the fifth state, opposite charges are generated on the fifth electrode and the sixth electrode, and the charges of different natures attract each other, compressing the third elastic layer, eliminating the elastic force of the third elastic layer, and ensuring the normal placement of the display device, in the sixth state, the same charge is generated on the fifth electrode and the sixth electrode or at least one of the fifth electrode and the sixth electrode is powered off, releasing the third elastic layer, and the elasticity of the third elastic layer increases the holding feeling of the display device and can be used for holding entertainment.

[0036] The above description is only a summary of the technical solutions of the application, in order to more clearly understand the technical means of the application, the application can be implemented according to the content of the specification, and in order to make the above and other purposes, characteristics and advantages of the application more obvious and easy to understand, the following specific embodiments of the application are described. BRIEF DESCRIPTION OF DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in this application or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are merely embodiments of this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0038] Figure 1 This is a schematic diagram of the display module in the first state of an embodiment of the present application;

[0039] Figure 2 This is a schematic diagram of the display module in the second state of an embodiment of the present application;

[0040] Figure 3 This is a schematic diagram of a display module in a second state according to another embodiment of the present application;

[0041] Figure 4 A schematic diagram of a pixel unit according to an embodiment of the present application;

[0042] Figure 5a This is a first circuit diagram of an embodiment of the present application;

[0043] Figure 5b This is a second circuit diagram of an embodiment of the present application;

[0044] Figure 6 A schematic diagram of the position of the auxiliary protection structure relative to the display module in an embodiment of the present application;

[0045] Figure 7 This is a top view of a display module according to an embodiment of the present application;

[0046] Figure 8 This is a schematic diagram of the position of the auxiliary protection structure of the first embodiment of the present application;

[0047] Figure 9 This is a schematic diagram of the position of the auxiliary protection structure of the second embodiment of the present application;

[0048] Figure 10 This is a schematic diagram of the position of the auxiliary protection structure of the second embodiment of the present application;

[0049] Figure 11 This is a schematic diagram of the wiring of the third electrode and the fourth electrode according to one embodiment of the present application;

[0050] Figure 12 A schematic diagram of the wiring of the third electrode and the fourth electrode according to another embodiment of the present application;

[0051] Figure 13 This is a schematic diagram of the position of the induction coil according to an embodiment of the present application;

[0052] Figure 14 A schematic diagram of the position of the induction coil according to another embodiment of the present application;

[0053] Figure 15 This is a schematic diagram of a display device in a fifth state according to an embodiment of the present application;

[0054] Figure 16 This is a schematic diagram of a display device in a sixth state according to an embodiment of the present application;

[0055] Figure 17 A schematic diagram of the locations of the third area and the fourth area according to an embodiment of the present application;

[0056] Figure 18 A schematic diagram of the locations of the third area and the fourth area according to another embodiment of the present application;

[0057] Figure 19 This is a schematic diagram of the corresponding usage scenarios of the third area and the fourth area in another embodiment of the present application.

[0058] Illustrations: display panel 1, auxiliary protective structure 3, first elastic layer 21, first electrode 22, second electrode 23, first circuit 24, second circuit 25, display screen 26, cover film 27, first area 31, second area 32, boundary area 33, second elastic layer 34, third electrode 35, fourth electrode 36, touch layer 5, routing area 37, base substrate 11, opening 38, back film layer 7, protective shell 6, third area 61, fourth area 62, third elastic layer 63, fifth electrode 64, sixth electrode 65, protective film layer 66, induction coil 111, display module 100. DETAILED DESCRIPTION

[0059] In order to make the objectives, technical solutions and advantages of this application more clear, this application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0060] It should be noted that the technical terms or scientific terms used in the embodiments of the present application should be understood as the general meaning understood by those skilled in the art to which the embodiments of the present application belong, unless otherwise defined. The terms "first", "second", and similar terms used in the embodiments of the present application do not represent any order, quantity, or importance, but are only used to distinguish different components. The terms "include", "contain", and similar terms mean that the elements or objects before the terms cover the elements or objects listed after the terms and their equivalents, and do not exclude other elements or objects. The terms "connect" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "upper", "lower", "left", "right", and the like only represent relative positional relationships, which can change accordingly when the absolute positions of the described objects change.

[0061] In the drawings, the size, thickness, or area of one or more constituent elements in some cases can be exaggerated for the purpose of explanation and thus is not necessarily drawn to scale relative to other constituent elements. Therefore, one embodiment of the present application is not necessarily limited by the illustrated shapes of the components depicted in the drawings, and the shapes of the components in the drawings do not reflect the true shape of the components, which can actually have different shapes.

[0062] As described in the background, in the process of human-computer interaction between the user and the display device through touch, there is a lack of interaction feedback, and in some scenarios, such as touch typing, in different input methods, corresponding settings can be used to type with vibration or with typing sound. However, in the above settings, generally only the input method is targeted, the application scenario is single, and whether vibration or sound, both have corresponding consumption of the vibration device or the speaker device of the display device, and the touch feedback is not the vibration feedback caused by the display module itself. In order to avoid the consumption of the vibration device or the speaker device and increase the service life of both, the present application starts from the perspective of the display module and uses the function of the display module itself to bring touch feedback.

[0063] Reference Figures 1 to 3 As shown in the drawings, the embodiments of the present application provide a display module 100, which includes a display panel 1. In some exemplary embodiments, the display panel 1 can be an organic light emitting diode (OLED) display panel 1.

[0064] Optionally, the display panel 1 may include at least a first electrode, a hole injection layer (HIL), a hole transport layer (HTL), an electron blocking layer (EBL), an emitting layer (EML), a hole blocking layer (HBL), an electron transport layer (ETL), an electron injection layer (EIL), a second electrode and a touch layer 5 stacked in sequence.

[0065] In some examples, reference Figure 4 As shown, the light-emitting layer may include a plurality of pixel units arranged in an array, and at least one of the plurality of pixel units may include a first sub-pixel P1 that emits a first color light, a second sub-pixel P2 that emits a second color light, and a third sub-pixel P3 that emits a third color light. For example, the first color light may be red light, the second color light may be filtered light, and the third color light may be blue light. In other words, the first sub-pixel may be a red sub-pixel, the second sub-pixel may be a green sub-pixel, and the third sub-pixel may be a blue sub-pixel.

[0066] The first touch feedback structure is arranged on the side of the display panel 1 in the light emitting direction, and includes a first elastic layer 21, a first electrode 22, and a second electrode 23. The first electrode 22 array is arranged on the side of the first elastic layer 21 away from the display panel 1, and the second electrode 23 array is arranged on the side of the first elastic layer 21 facing the display panel 1. In the first state, the first electrode 22 and the second electrode 23 have opposite charges. In the second state, the first electrode 22 and the second electrode 23 have the same charge, or at least one of the first electrode 22 and the second electrode 23 is de-energized.

[0067] In some exemplary embodiments, the first state may be a display state, and the second state may be a touch state, such as typing, touch clicking, etc.

[0068] refer to Figure 1 As shown, in the first state, opposite charges are generated on the first electrode 22 and the second electrode 23. The opposite charges attract each other and compress the first elastic layer 21. The first elastic layer 21 maintains the compressed state for normal display. In the compressed state, the hardness of the first elastic layer increases. Figure 2 、 Figure 3As shown, in the second state, the same charge is generated on the first electrode 22 and the second electrode 23. Like charges repel each other, and the first elastic layer 21 is stretched along the space between the first electrode 22 and the second electrode 23 due to the force. During the touch process, the elastic force of the first elastic layer 21 provides touch feedback to the user's finger, allowing the user to correctly perceive whether the touch is completed.

[0069] Alternatively, in the second state, either the first electrode 22 or the second electrode 23 is powered off, the first elastic layer 21 is reset, and the elastic force of the first elastic layer 21 provides touch feedback to the user's finger, allowing the user to correctly perceive whether the touch is completed.

[0070] Alternatively, in the second state, the first electrode 22 and the second electrode 23 are both powered off, the first elastic layer 21 is reset, and the elastic force of the first elastic layer 21 itself provides touch feedback to the user's finger, so that the user can correctly perceive whether the touch is completed. Here, by powering off the first electrode 22 and the second motor, power consumption is reduced.

[0071] Exemplarily, the switching between the first state and the second state can be controlled by any triggering method such as a button, a touch, etc., which is not specifically limited here.

[0072] It should be noted that in this embodiment, the first touch feedback structure can be directly integrated into the display panel 1, so that the first touch feedback structure and the display panel 1 are manufactured together. Alternatively, the first touch feedback structure can be manufactured separately and attached to the display panel 1 in an external form, so that users can easily select it in appropriate scenarios. This is not specifically limited here.

[0073] In some embodiments, reference Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 and Figure 10 As shown, the display panel 1 includes a first area 31 and a second area 32 , and a side adjacent to the first area 31 and the second area 32 forms a boundary area 33 .

[0074] An auxiliary protective structure 3 is provided on the side of the display panel 1 away from the light emitting direction. The auxiliary protective structure 3 includes a second elastic layer 34, a third electrode 35 and a fourth electrode 36. The third electrode 35 array is arranged on the side of the second elastic layer 34 away from the display panel 1, and the fourth electrode 36 array is arranged on the side of the second elastic layer 34 facing the display panel 1. In the third state, the charges of the third electrode 35 and the fourth electrode 36 are opposite. In the fourth state, the charges of the third electrode 35 and the fourth electrode 36 are the same, or at least one of the third electrode 35 and the fourth electrode 36 is powered off.

[0075] In some exemplary embodiments, the display panel 1 is a foldable display panel 1, the first area 31 can be a non-folding area or a folding area, and accordingly, the second area 32 can be a folding area or a non-folding area. If the first area 31 is a non-folding area, the second area 32 is a folding area; if the first area 31 is a folding area, the second area 32 is a non-folding area.

[0076] In some exemplary embodiments, the third state may be a non-bent state, and the fourth state may be a bent state.

[0077] The folding display device is folded in two ways: outward folding and inward folding. Regardless of the inward or outward folding, due to the stacking arrangement of the film layers of the display panel 1, the folding degree between different film layers will be different during the folding process, which may easily cause peeling (peeling) between different film layers at the folding point. In related technologies, the peeling problem that occurs during bending is improved by adjusting the amount of film between different film layers and adjusting the hardness and softness of different film layer materials. Generally speaking, the hardness and softness of the film layer material are fixed, and the repeated folding and unfolding of the film layers may also easily cause peeling of the different film layers.

[0078] In this embodiment, in the third state, opposite charges are generated on the third electrode 35 and the fourth electrode 36. Opposite charges attract each other, compressing the second elastic layer 34. This compression eliminates its elasticity relative to the display panel 1, increasing its hardness. At this point, the display panel 1 and the various film layers of the auxiliary protective structure 3 are in an expanded state, while the second elastic layer 34 remains compressed, allowing normal display. In the fourth state, the third electrode 35 and the fourth electrode 36 generate the same charge, causing the charges to repel each other. Due to the applied force, the second elastic body expands along the gap between the third and fourth electrodes 35, 36. During the bending of the display panel 1, the elastic force of the second elastic body provides support for the film layers in the interface region 33, preventing peeling of the film layers.

[0079] Alternatively, in the fourth state, any one of the third electrode 35 and the fourth electrode 36 is powered off, the second elastic body is reset, and the elastic force of the second elastic body itself provides support for different film layers of the display panel 1 in the boundary area 33, so that different film layers of the display panel 1 are prevented from peeling off.

[0080] Or in the fourth state, the third electrode 35 and the fourth electrode 36 are both powered off, the second elastomer is reset, and the elastic force of the second elastomer itself provides support for the different film layers of the display panel 1 in the junction area 33, so that the different film layers of the display panel 1 avoid peeling problems. Here, by powering off the third electrode 35 and the fourth electrode 36, power consumption is reduced.

[0081] It can be understood that when the display panel 1 is folded, the larger the folding angle is, the more likely the film layer is to peel off. Correspondingly, the larger the folding angle is, the more the second elastic layer 34 is compressed as the folding angle increases, and the greater the elastic force provided. The elastic force supports the different film layers of the display panel 1 in the junction area 33 to avoid peeling problems.

[0082] In some embodiments, reference Figure 5a 、 Figure 5b As shown, a first circuit 24 is provided on the side of the first elastic layer 21 away from the display panel 1 , and each first electrode 22 is individually controlled by the first circuit 24 . A second circuit 25 is provided on the side of the first elastic layer 21 facing the display panel 1 , and the second electrodes 23 are connected in series through the second circuit 25 .

[0083] The first elastic layer 21 is controlled by controlling the electrical properties of the first electrode 22 and the second electrode 23 respectively, so that the first elastic layer 21 is in a compressed state or a stretched or reset state. The first electrode 22 and the second electrode 23 are controlled by different circuits. Each electrode is equipped with a circuit for individual control. Firstly, the load on the control end is increased. Secondly, too many circuits not only require a high manufacturing process, but also cause circuit waste.

[0084] In this embodiment, to control the electrical properties of the charges on the first and second electrodes 22, 23, a second circuit 25 is connected in series with the second electrodes 23, providing a single electrical property to the second electrodes 23. For example, the charge can be either always negative or always positive. This reduces the load on the control terminal and the wiring of the second circuit 25. Separate wiring for each second electrode 23 is not required, thus reducing costs. Each first electrode 22 is individually controlled via the first circuit 24. Simply controlling the electrical properties of the first electrode 22 can achieve the same or different electrical properties as the second electrode 23, similarly reducing the load on the control terminal. For example, in the first state, if the second electrode 23 is always negatively charged, the first electrode 22 can be individually controlled to also be negatively charged. If the second electrode 23 is always positively charged, the first electrode 22 can be individually controlled to also be positively charged. In the second state, if the second electrode 23 is always negatively charged, the first electrode 22 can be individually controlled to be positively charged. If the second electrode 23 is always positively charged, the first electrode 22 can be individually controlled to be negatively charged.

[0085] In some embodiments, a first circuit 24 is provided on the side of the first elastic layer 21 away from the display panel 1 , and the first electrodes 22 are connected in series through the first circuit 24 . A second circuit 25 is provided on the side of the first elastic layer 21 facing the display panel 1 , and each second electrode 23 is individually controlled by the second circuit 25 .

[0086] In this embodiment, the principles are the same as those of the above-described embodiments. First electrodes 22 are connected in series using first circuits 24 to provide a single charge, for example, a constant positive charge or a constant negative charge, to the first electrodes 22. Second circuits 25 are used to individually control each second electrode 23. Simply controlling the charge on the second electrode 23 allows the charge to be either the same or different from that on the first electrode 22.

[0087] In some embodiments, reference Figure 3 As shown, in the second state, the region with the same charge between the first electrode 22 and the second electrode 23 at least covers the display screen 26 of the display panel 1 .

[0088] In some exemplary embodiments, the display screen 26 may be a keyboard display screen 26 in the display panel 1 , or may be the entire display screen 26 of the display panel 1 , which is not specifically limited herein.

[0089] By adjusting the areas with opposite charges between the first and second electrodes 22, 23, touch feedback is provided for the corresponding display screen 26. For example, if the display screen 26 is a keyboard display screen 26 in the display panel 1, the charges on the first and second electrodes 22, 23 in the area corresponding to the keyboard display screen 26 are equal in electrical properties. That is, the first and second electrodes 22, 23 in the area corresponding to the keyboard display screen 26 can be both positively charged or both negatively charged. Only the first elastic layer 21 corresponding to the keyboard display screen 26 has the same charge. During typing, the first elastic layer 21 provides fingertip feedback to the user, confirming successful touch control of the corresponding key. This achieves precise touch feedback for the corresponding display screen 26.

[0090] In some optional embodiments, in the second state, the area with the same charge between the first electrode 22 and the second electrode 23 covers the display panel 1. Unlike the above-described embodiment, in the above-described embodiment, it is necessary to precisely control the area with the same charge between the first electrode 22 and the second electrode 23 to correspond to the display screen 26, and precisely control the electrical properties of the charge generated on the first electrode 22 or the second electrode 23 in this area to provide touch feedback to the area requiring touch feedback. In this embodiment, in the second state, i.e., when touch is required, the charge of the first electrode 22 and the second electrode 23 is the same throughout the area covering the display panel 1. The first touch feedback structure corresponding to the entire display panel 1 can provide corresponding touch feedback. There is no need to precisely control the electrical properties of the charge generated on the first electrode 22 or the second electrode 23; it is only necessary to ensure that the electrical properties of the charges on the two electrodes are the same.

[0091] In some embodiments, the first electrode 22 , the second electrode 23 , the first circuit 24 , and the second circuit 25 are all made of transparent conductive materials, and the first elastic layer 21 is made of transparent insulating material.

[0092] The first touch feedback structure covers the light-emitting side of the display panel 1. By making the first electrode 22, the second electrode 23, the first circuit 24, and the second circuit 25 of transparent conductive materials, and the first elastic layer 21 of transparent insulating material, the first circuit 24 is used to control the electrical properties of the charge of the first electrode 22, and the second circuit 25 is used to control the electrical properties of the charge of the second motor. While utilizing the elastic touch feedback of the first elastic layer 21 in the second state, its transparent property can avoid affecting the normal display of the display panel 1 in both the first and second states.

[0093] In some embodiments, the orthographic projection of the first elastic layer 21 on the display panel 1 is located within the orthographic projection range of the display panel 1 .

[0094] In the first state, the first elastic layer 21 is compressed toward the display panel 1, causing it to harden and eliminate its elasticity. In the second state, the first elastic layer 21 is stretched away from the elastic panel or reset. Due to the physical properties of the first elastic layer 21, the cross-sectional area of ​​the first elastic layer 21 increases during compression, while it decreases during stretching and reset. The orthographic projection of the first elastic layer 21 on the display panel 1 falls within the orthographic projection of the display panel 1. After compression, the edges of the first elastic layer 21 do not extend beyond the edges of the display panel 1, thus preventing an increase in the width of the bezel. In the second state, the first elastic layer 21 is reset or stretched by the first and second electrodes 22 and 23, and similarly, the edges of the first elastic layer 21 do not extend beyond the edges of the display panel 1.

[0095] In some embodiments, reference Figures 1 to 4 As shown, the display panel 1 includes pixel units arranged in an array, a touch layer 5 is provided between the pixel units and the first touch feedback structure, the first electrodes 22 and the second electrodes 23 are symmetrically arranged along the first elastic layer 21, and each first electrode 22 and second electrode 23 corresponds to a pixel unit.

[0096] In some exemplary embodiments, the touch layer 5 may include a first touch electrode, an insulating layer, and a second touch electrode, wherein the first touch electrode and the second touch electrode are respectively disposed on opposite sides of the insulating layer.

[0097] Compared to the display module 100 in the related art, the display module 100 in this embodiment provides touch feedback by disposing a first touch feedback structure on the light-emitting side of the display panel 1. The display image 26 in the display panel 1 is controlled by pixel units, and precise touch control in the display panel 1 is controlled by touch electrodes in the touch layer 5. To achieve accurate touch feedback relative to the display image 26, the more precise the charge control on both sides of the first elastic layer 21, the more precise the first elastic layer 21's correspondence with the display image 26. By aligning both the first electrode 22 and the second electrode 23 with pixel units, the compressed position of the first elastic layer 21 precisely corresponds to the non-display image 26 area, and the uncompressed position precisely corresponds to the display image 26 area. In the uncompressed position, touch control of the first elastic layer 21 can be accurately fed back to the display image 26 via the touch layer 5, and touch feedback can also be achieved through the elasticity of the first elastic layer 21.

[0098] It is understandable that if there are too many first electrodes 22 and second electrodes 23, it will be impossible to precisely align the uncompressed position of the first elastic layer 21 with the display screen 26 area. In other words, in the second state, the boundary between the compressed and uncompressed positions of the first elastic layer 21 is inaccurate, making precise touch feedback control impossible. Excessive first electrodes 22 and second electrodes 23 also result in excessive circuits for controlling the first and second electrodes 22, 23, increasing manufacturing requirements and touch control costs.

[0099] In some embodiments, a wiring area and a control module disposed in the wiring area are provided on one side of the display panel 1 . The control module is connected to the power supply. The first line 24 and the second line 25 extend to the wiring and are connected to the control module.

[0100] In this embodiment, the first and second electrodes 22, 23 share a power supply with the display panel 1, and the power supply provides charges of corresponding electrical properties to the first and second electrodes 22, 23. The first and second lines 24, 25 extend into the routing area and connect to the control module. This allows for charge control of the first and second electrodes 22, 23 without adding additional wiring, thus avoiding the need for additional routing space for the first touch control structure. Furthermore, the first touch feedback structure can be directly integrated into the display panel 1.

[0101] In some optional embodiments, an external power source can be provided to provide charges of corresponding electrical properties to the first electrode 22 and the second electrode 23. While avoiding adding to the manufacturing process of the display panel 1, the external power source can be used to achieve a separate design of the first touch feedback structure and the display panel 1. That is, the first touch feedback structure can be attached to the display panel 1 when needed and removed when not needed.

[0102] In some embodiments, reference Figures 1 to 3As shown, a cover film 27 is provided on the side of the first touch feedback structure away from the display panel 1. The cover film 27 encapsulates the first touch feedback structure, preventing direct contact with the first elastic layer 21 or the first electrode 22 on the surface of the first elastic layer 21 during touch control, providing effective protection for the first touch feedback structure.

[0103] In some embodiments, the orthographic projection of the auxiliary protection structure 3 on the display panel 1 at least covers the boundary area 33 , and the orthographic projection of the second elastic layer 34 on the display panel 1 is located within the orthographic projection range of the display panel 1 .

[0104] Exemplarily, at least a back film layer 7 is provided on a side of the auxiliary protection structure 3 away from the display panel 1 , and the back film layer 7 may include a heat sink and a support frame.

[0105] In this embodiment, the main purpose of the auxiliary protection structure 3 is to provide support for the film layer in the interface area 33 to prevent the film layer from peeling off in the display panel 1. Figure 8 As shown, the auxiliary protection structure 3 can only cover the portion where the junction area 33 is located. When the junction area 33 is bent or folded, the elastic force of the second elastic layer 34 in the auxiliary protection structure 3 provides support for each film layer, thereby preventing the peeling problem caused by the movement between different film layers due to bending or folding. Figure 9 As shown, the auxiliary protection structure 3 can cover the junction area 33 and the bending area. When the junction area 33 is bent or folded, the elastic force of the second elastic layer 34 in the auxiliary protection structure 3 can also provide support for each film layer. Moreover, the auxiliary protection structure 3 only needs to be completed in one process, saving process flow. Figure 10 As shown, the auxiliary protective structure 3 can cover the interface region 33, the bending region, and the non-bending region. During the bending or folding process of the interface region 33, the elastic force of the second elastic layer 34 in the auxiliary protective structure 3 can also provide support for the various film layers, and the auxiliary protective structure 3 can be completed in a single process. At the same time, the orthographic projection of the second elastic layer 34 on the display panel 1 is located within the orthographic projection range of the display panel 1, that is, the cross-sectional area of ​​the second elastic layer 34 is smaller than the cross-sectional area of ​​the display panel 1. In the third state, the second elastic layer 34 is compressed, causing it to harden. During the compression process, the cross-sectional area of ​​the second elastic layer 34 increases. After compression, the edges of the second elastic layer 34 do not extend beyond the edges of the display panel 1, avoiding an increase in the width of the frame. In the fourth state, the bending and compression of the second elastic layer 34 provide support for the various film layers of the display panel 1 while also ensuring that the edges do not extend beyond the edges of the actual panel.

[0106] In some embodiments, a third circuit is provided on the side of the second elastic layer 34 away from the display panel 1, and each third electrode 35 is individually controlled by the third circuit. A fourth circuit is provided on the side of the second elastic layer 34 facing the display panel 1, and the fourth electrodes 36 are connected in series through the fourth circuit.

[0107] The second elastic layer 34 is controlled by controlling the electrical properties of the third electrode 35 and the fourth electrode 36 respectively, so that the second elastic layer 34 is in a compressed state or a stretched or reset state. The third electrode 35 and the fourth electrode 36 are controlled by different circuits. Each electrode is equipped with a circuit for individual control, which also increases the load on the control end. Secondly, too many circuits not only require high manufacturing technology, but also cause waste of circuit pairs.

[0108] In this embodiment, to control the electrical properties of the charges on the third and fourth electrodes 35, 36, a fourth circuit is connected in series with the fourth electrodes 36, providing a single charge, for example, a constant negative charge or a constant positive charge. This reduces the load on the control terminal and the wiring of the fourth circuit, eliminating the need for separate wiring for controlling the polarity of each fourth electrode 36, thereby reducing costs. By individually controlling each third electrode 35 through the third circuit, only the electrical properties of the third electrode 35 need to be controlled to be the same as or different from those of the fourth electrode 36, similarly reducing the load on the control terminal. For example, in the third state, if the fourth electrode 36 is always negatively charged, the third electrode 35 can be controlled to also be negatively charged. In the fourth state, if the fourth electrode 36 is always negatively charged, the third electrode 35 can be controlled to be positively charged, while the fourth electrode 36 is always positively charged, thus controlling the third electrode 35 to be negatively charged.

[0109] In other embodiments, a third circuit is provided on the side of the second elastic layer 34 away from the first elastic layer 21 display panel 1, and the third electrodes 35 of the first elastic layer 21 are connected in series through the third circuit of the first elastic layer 21; a fourth circuit is provided on the side of the first elastic layer 21 and the second elastic layer 34 facing the first elastic layer 21 display panel 1, and each fourth electrode 36 of the first elastic layer 21 is individually controlled by the fourth circuit of the first elastic layer 21.

[0110] In this embodiment, the principles are the same as those of the previous embodiment. A third circuit is used to connect the third electrodes 35 in series, providing a single charge, for example, a constant positive charge or a constant negative charge, to the third electrodes 35. A fourth circuit is used to individually control each fourth electrode 36. Simply controlling the charge on the fourth electrode 36 allows the charge to be either the same or different from that on the third electrode 35.

[0111] In some embodiments, reference Figure 11As shown, a wiring area 37 and a control module arranged in the wiring area 37 are provided on one side of the display panel 1, and the control module is connected to the power supply; the display panel 1 includes a base substrate 11 facing the auxiliary structure side, and the base substrate 11 is provided with an extension section on the side facing the wiring area 37, and the extension section is provided with an opening 38 passing through the extension section, and the third circuit and the fourth circuit are connected to the control module through the opening 38.

[0112] In some exemplary embodiments, the display module 100 is a foldable display module 100, and the base substrate 11 may be a flexible base substrate 11. The flexible base substrate 11100 may be PET (Polyethlene terephthalate), PEN (Polyethlene naphtthalate two formic acid glycol ester), or PI (Polyimide), etc. According to different display panel 1 requirements, a corresponding base substrate 11 may be provided, and no specific limitation is made here.

[0113] In this embodiment, similar to the first touch feedback structure, the third and fourth electrodes 35 and 36 can share a power supply with the display panel 1, and the power supply provides charges of corresponding electrical properties to the third and fourth electrodes 35 and 36. In the case where the base substrate 11 is relatively large, preventing the third and fourth circuits from extending into the routing area 37, an opening 38 is provided in the base substrate 11 located in the routing area 37, i.e., an opening 38 is provided in the extension section. This allows the third and fourth circuits to be connected to the routing area 37. The third and fourth circuits are connected to the control module through the opening 38, eliminating the need for an additional routing area 37. This avoids occupying routing space for the auxiliary protective structure 3, and achieves control of the electrical properties of the charges on the third and fourth electrodes 35 and 36.

[0114] In other embodiments, reference Figure 12 As shown, a wiring area 37 and a control module arranged in the wiring area 37 are provided on one side of the display panel 1 , and the control module is connected to the power supply; the third line and the fourth line extend to the wiring area 37 and are connected to the control module.

[0115] In this embodiment, the base substrate 11 does not block the third and fourth lines from extending to the routing area 37. The third and fourth lines are directly extended to the routing area 37 to connect to the control module without adding an additional routing area 37, thereby avoiding the routing space occupation of the auxiliary protection structure 3 and realizing the control of the electrical properties of the charges on the third electrode 35 and the fourth electrode 36.

[0116] In some optional embodiments, an external power supply is further included, and the external power supply is connected to the third electrode 35 and the fourth electrode 36 via a third line and a fourth line, respectively. The external power supply reduces the consumption of the power supply.

[0117] In some optional embodiments, the external power supply includes an induction coil 111, and the induction coil 111 is located within the vertical projection range of the wiring area 37. Figure 13 , which is a schematic diagram of the relative positions of the induction coil 111 and the auxiliary protection structure 3. The induction coil 111 is arranged at a corresponding position in the wiring area 37 to provide power to the auxiliary protection structure 3 without occupying additional space in the display module 100.

[0118] In some optional embodiments, reference Figure 14 As shown, the external power supply includes an induction coil 111, which is disposed between the auxiliary protective structure 3 and the display panel 1. The orthographic projection of the induction coil 111 on the base substrate 11 is located within the orthographic projection of the first region 31 on the display panel 1. In this embodiment, the induction coil 111 can be directly disposed between the display panel 1 and the auxiliary protective structure 3 as an external power supply, reducing additional space. The induction coil 111, as an external power supply, is disposed within the corresponding first region 31. When the display panel 1 transitions from the third state to the fourth state, or is bent or folded, the induction coil 111 does not interfere with the display panel 1.

[0119] Based on the same inventive concept, the present application provides a display device, referring to Figure 15 、 Figure 16 、 Figure 17 、 Figure 18 as well as Figure 19 As shown, it includes the display module 100 described in any of the above embodiments; a protective shell 6, which is arranged on the side of the display module 100 away from the light emitting direction and covers the side frame of the display module 100, the protective shell 6 includes a third area 61 and a fourth area 62, and the fourth area 62 surrounds or partially surrounds the third area 61; a second touch feedback structure is arranged on the side of the third area 61 of the protective shell 6 away from the display module 100, the second touch feedback structure includes a third elastic layer 63, a fifth electrode 64 and a sixth electrode 65, the fifth electrode 64 array is arranged on the side of the third elastic layer 63 away from the protective shell 6, and the sixth electrode 65 array is arranged on the side of the third elastic layer 63 away from the protective shell 6, in the fifth state, the fifth electrode 64 and the sixth electrode 65 have opposite charges, and in the sixth state, the fifth electrode 64 and the sixth electrode 65 have the same charge, or at least one of the fifth electrode 64 and the sixth electrode 65 is powered off.

[0120] In some exemplary embodiments, referring to Figure 17As shown, for a small foldable display device, the third area 61 can be a finger and palm contact area. Figure 18 and Figure 19 As shown, for medium and large display devices, the third area 61 may be only the finger contact area, and the fourth area 62 may be other areas outside the third area 61 .

[0121] The fifth state may be a placed state of the display device, and the sixth state may be a held state of the display device.

[0122] In the fifth state, opposite charges are generated on the fifth electrode 64 and the sixth electrode 65. Opposite charges attract, compressing the third elastic layer 63. In this compressed state, the third elastic layer 63 becomes harder, allowing for proper placement. In the sixth state, the fifth electrode 64 and the sixth electrode 65 generate the same charge. Like charges repel, causing the third elastic layer 63 to expand between the fifth and sixth electrodes 64, 65 due to the applied force. The resulting elasticity enhances the grip.

[0123] Alternatively, in the sixth state, any one of the fifth electrode 64 and the sixth electrode 65 is de-energized, and the third elastic layer 63 is restored. The elasticity of the third elastic layer 63 itself also enhances the grip.

[0124] Alternatively, in the sixth state, the fifth electrode 64 and the sixth electrode 65 are simultaneously powered off, and the third elastic layer 63 is restored. The elasticity of the third elastic layer 63 itself also enhances the grip.

[0125] It is understandable that, in the sixth state, in addition to enhancing the grip, the elastic force of the third elastic layer 63 can also be used by the user for entertainment, such as pinching music.

[0126] It should be noted that a protective film layer 66 is provided on a side of the fifth electrode 64 away from the protective housing 6 , and the protective film layer 66 provides packaging protection for the second touch feedback structure.

[0127] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present application (including the claims) is limited to these examples. Within the scope of the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

[0128] In addition, for simplicity of description and discussion, and in order not to make the embodiment of the application difficult to understand, the known power supply / ground connection with integrated circuit (IC) chip and other components may or may not be shown in the accompanying drawings provided. In addition, the device can be shown in the form of a block diagram to avoid making the embodiment of the application difficult to understand, and this also takes into account the following fact, that is, the details of the embodiment of these block diagram devices are highly dependent on the platform to be implemented in the embodiment of the application (that is, these details should be fully within the scope of understanding of those skilled in the art). When specific details (for example, circuit) are set forth to describe exemplary embodiments of the application, it will be apparent to those skilled in the art that the embodiment of the application can be implemented without these specific details or when these specific details are changed. Therefore, these descriptions should be considered to be illustrative rather than restrictive.

[0129] Although the present invention has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of these embodiments will be apparent to those skilled in the art based on the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may utilize the embodiments discussed.

[0130] The embodiments of the present application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of this application.

Claims

1. A display module, characterized in that: include: Display panel; a first touch feedback structure, disposed on a light-emitting side of the display panel, comprising a first elastic layer, a first electrode, and a second electrode; the first electrode array being disposed on a side of the first elastic layer away from the display panel, and the second electrode array being disposed on a side of the first elastic layer facing the display panel; in a first state, the first electrode and the second electrode have opposite charges; in a second state, the first electrode and the second electrode have the same charge, or at least one of the first electrode and the second electrode is de-energized; The first state is a display state, and the second state is a touch state.

2. The display module according to claim 1, wherein: The display panel includes a first area and a second area, and a side of the first area adjacent to the second area forms a boundary area; An auxiliary protective structure is provided on the side of the display panel away from the light emitting direction, and the auxiliary protective structure includes a second elastic layer, a third electrode and a fourth electrode. The third electrode array is provided on the side of the second elastic layer away from the display panel, and the fourth electrode array is provided on the side of the second elastic layer facing the display panel. In the third state, the charges of the third electrode and the fourth electrode are opposite. In the fourth state, the charges of the third electrode and the fourth electrode are the same, or at least one of the third electrode and the fourth electrode is powered off.

3. The display module according to claim 1, wherein: A first circuit is provided on a side of the first elastic layer away from the display panel, and each of the first electrodes is individually controlled by the first circuit; A second circuit is provided on a side of the first elastic layer facing the display panel, and the second electrodes are connected in series via the second circuit; Or a first circuit is provided on a side of the first elastic layer away from the display panel, and the first electrodes are connected in series via the first circuit; A second circuit is provided on a side of the first elastic layer facing the display panel, and each of the second electrodes is individually controlled by the second circuit.

4. The display module according to claim 3, wherein: In the second state, the region with the same charge between the first electrode and the second electrode at least covers the display screen of the display panel.

5. The display module according to claim 3, wherein: The first electrode, the second electrode, the first circuit, and the second circuit are all made of transparent conductive materials, and the first elastic layer is made of transparent insulating material.

6. The display module according to claim 1, wherein: The orthographic projection of the first elastic layer on the display panel is located within the orthographic projection range of the display panel.

7. The display module according to claim 1, wherein: The display panel includes pixel units arranged in an array, and a touch layer is provided between the pixel units and the first touch feedback structure; The first electrode and the second electrode are symmetrically arranged along the first elastic layer, and each of the first electrode and the second electrode corresponds to the pixel unit.

8. The display module according to claim 3, wherein: A wiring area and a control module arranged in the wiring area are provided on one side of the display panel. The control module is connected to a power supply. The first circuit and the second circuit extend toward the wiring area and are connected to the control module.

9. The display module according to claim 1, wherein: A cover film is provided on a side of the first touch feedback structure away from the display panel.

10. The display module according to claim 2, wherein: The orthographic projection of the auxiliary protection structure on the display panel at least covers the boundary area, and the orthographic projection of the second elastic layer on the display panel is located within the orthographic projection range of the display panel.

11. The display module according to claim 2, wherein: A third circuit is provided on a side of the second elastic layer away from the display panel, and each of the third electrodes is individually controlled by the third circuit; A fourth circuit is provided on a side of the second elastic layer facing the display panel, and the fourth electrodes are connected in series via the fourth circuit; or a third circuit is provided on a side of the second elastic layer away from the display panel, and the third electrodes are connected in series via the third circuit; A fourth circuit is provided on a side of the second elastic layer facing the display panel, and each of the fourth electrodes is individually controlled by the fourth circuit.

12. The display module according to claim 11, wherein: A wiring area and a control module arranged in the wiring area are provided on one side of the display panel, and the control module is connected to a power supply; The display panel includes a base substrate facing the auxiliary protection structure. The base substrate is provided with an extension section facing the wiring area. The extension section is provided with an opening passing through the extension section. The third circuit and the fourth circuit are connected to the control module through the opening.

13. The display module according to claim 11, wherein: A wiring area and a control module arranged in the wiring area are provided on one side of the display panel, and the control module is connected to a power supply; The third line and the fourth line extend to the routing area and are connected to the control module.

14. A display device, characterized in that: Comprising the display module according to any one of claims 1 to 13; a protective housing, disposed on a side of the display module away from a light-emitting direction and covering a side frame of the display module, the protective housing including a third area and a fourth area, the fourth area surrounding or partially surrounding the third area; The second touch feedback structure is arranged on a side of the third area of ​​the protective shell away from the display module. The second touch feedback structure includes a third elastic layer, a fifth electrode and a sixth electrode. The fifth electrode array is arranged on a side of the third elastic layer away from the protective shell, and the sixth electrode array is arranged on a side of the third elastic layer away from the protective shell. In the fifth state, the charges of the fifth electrode and the sixth electrode are opposite. In the sixth state, the charges of the fifth electrode and the sixth electrode are the same, or at least one of the fifth electrode and the sixth electrode is powered off.

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