Patent Publication Number: US-2020292865-A1

Title: Display Assembly, Display, Terminal, and Display Dismantlement Method

Description:
This application claims priority to Chinese Patent Application No. 201711267927.1, filed with the Chinese Patent Office on Dec. 5, 2017 and entitled “DISPLAY ASSEMBLY, DISPLAY, TERMINAL, AND DISPLAY DISMANTLEMENT METHOD”, which is incorporated herein by reference in its entirety. 
     TECHNICAL FIELD 
     The present invention relates to the field of display technologies, and in particular, to a display assembly, a display, a terminal, and a display dismantlement method. 
     BACKGROUND 
     In the existing display manufacturing field, to ensure reliability of an entire display, a display module is securely fastened to a casing by using an adhesive. Consequently, when the display needs to be repaired, the display module is rather difficult to dismantle. 
     At present, people mainly dismantle a display module based on a feature that an adhesive has relatively weak adhesiveness at a high temperature. The display module and an adhesive assembly or product are first put into a heater box, to heat an adhesive part directly on a heating platform or by using a heating rod and the like, and when a temperature of the adhesive reaches 70° C. to 80° C., immediately pull the display module by using an adhesive disk or push the display module by using a tool, thereby implementing dismantlement of the display module. In such a manner of heating and forcedly dismantling the display module, the display module is quite easily deformed or damaged. 
     SUMMARY 
     The present invention is to provide a display assembly, a display, and a display dismantlement method, so as to quickly dismantle a display module without damage during repairing of the display that becomes faulty. 
     The present invention provides a display assembly. A display includes a housing, an electrically conductive easy-peel adhesive, and a display module, where the housing includes an electric conductor attached to the electrically conductive easy-peel adhesive, the display module includes a conductive mounting surface in contact with the electrically conductive easy-peel adhesive, and the mounting surface is attached securely to the electric conductor by using the electrically conductive easy-peel adhesive; a first contact position is disposed on the electric conductor, and a second contact position is disposed on the mounting surface; and when the first contact position and the second contact position are connected to a power supply, the electrically conductive easy-peel adhesive is removed from the display module or the housing. A retaining direction of the electrically conductive easy-peel adhesive is able to be determined by changing a voltage direction of the power supply, so that the display module or the housing is quickly dismantled without damage. 
     The display module includes a display panel and a touch panel laminated onto the display panel, the display panel includes a display surface and a first lower surface opposite to the display surface, and the touch panel includes a second lower surface facing the display panel. 
     The mounting surface is a conductive body disposed on the first lower surface or the second lower surface, and the conductive body is electrically conductive. The housing may be partially or entirely a conductive area. To be specific, the electric conductor (which is electrically conductive) may be the entire housing, or may be a partial housing or a conductive layer located on a surface of the housing. In the present invention, the conductive body and the electric conductor that are electrically conductive are respectively disposed in the display module and the housing, so that upper and lower adhesive surfaces of the electrically conductive easy-peel adhesive are both conductive; and when the first contact position and the second contact position are simultaneously connected to the power supply, adhesiveness of the electrically conductive easy-peel adhesive is weakened, so as to dismantle the display module or the housing without damage. 
     The conductive body is a metal frame or a conductive adhesive layer, so that an adhesive surface between the electrically conductive easy-peel adhesive and the display module is electrically conductive. 
     The housing is made of a metallic material, and the electric conductor is the housing itself, that is, the entire housing is the electric conductor, so that the electrically conductive easy-peel adhesive and the housing are electrically conductive. 
     The first contact position is located on any surface of the housing, the second contact position is connected to a contact channel, and the contact channel is configured to provide a power connection for the second contact position. The first contact position and the second contact position conduct electricity for the upper and lower adhesive surfaces of the electrically conductive easy-peel adhesive, respectively. 
     The contact channel is a through hole that penetrates through the housing and the electrically conductive easy-peel adhesive, or the contact channel is a lead extended from the second contact position. Different contact channels can be reserved depending on different requirements. When a lead is used as a contact channel to externally connect to the power supply, a contact channel location does not need to be specially set inside the housing, simplifying a manufacturing process. In addition, another electronic component shielding the contact channel location does not need to be first dismantled to externally connect the power supply, thereby facilitating an operation. 
     The electric conductor is the conductive adhesive layer disposed on the housing. The first contact position is connected to a first contact channel, the second contact position is connected to a second contact channel, the first contact channel provides a power connection for the first contact position, and the second contact channel provides a power connection for the second contact position. This helps conduct electricity for the upper and lower adhesive surfaces of the electrically conductive easy-peel adhesive. 
     The first contact channel is a through hole that penetrates through the housing and the conductive adhesive layer, and the second contact channel is a through hole that penetrates through the housing and the electrically conductive easy-peel adhesive; or the first contact channel and the second contact channel are leads extended from the first contact position and the second contact position, respectively. Different contact channels can he reserved depending on different requirements. When a lead is used as a contact channel to externally connect to the power supply, a contact channel location does not need to be specially set inside the housing. In addition, another electronic component shielding the contact channel location does not need to be first dismantled to externally connect the power supply, thereby facilitating an operation. 
     When the conductive body is a conductive adhesive layer laminated onto the display module, the conductive body is disposed on the second lower surface, and adapts to assembly structures of different display assemblies. The housing is any one of a middle frame, a front housing, or a brace. 
     The conductive adhesive layer includes a metal film layer or a plastic film with a metallic material. 
     The present invention provides a display. The display includes the foregoing display assembly. 
     The present invention provides a terminal. The terminal includes the foregoing display, that is, includes the foregoing display assembly. 
     The present invention provides a display dismantlement method. The display dismantlement method includes: 
     connecting a first contact position on a display module and a second contact position on an electric conductor respectively to a positive electrode and a negative electrode of a direct current power supply, so that a voltage is generated between a mounting surface of the display module and the electric conductor of the housing that are attached to an electrically conductive easy-peel adhesive, where the electric conductor includes the housing or a conductive adhesive layer disposed on a surface of the housing; and 
     removing the display module or the electric conductor from the electrically conductive easy-peel adhesive. 
     In the step of connecting a first contact position on a display module and a second contact position on an electric conductor respectively to a positive electrode and a negative electrode of a direct current power supply, so that a voltage is generated between a mounting surface of the display module and the electric conductor of the housing that are attached to an electrically conductive easy-peel adhesive, a retaining direction of the electrically conductive easy-peel adhesive is able to be determined by changing a voltage direction, so as to dismantle a damaged display module or housing. In this way, the electrically conductive easy-peel adhesive is retained on an intact housing or display module, thereby facilitating reuse for a plurality of times. 
     The display in the present invention uses a display module usage architecture in which the housing and the display module is attached by using the electrically conductive easy-peel adhesive, and the first contact position and the second contact position are respectively preset on surfaces of the conductive parts of the housing and the display module. When the display becomes faulty and needs to be repaired, the first contact position and the second contact position are simultaneously connected to the power supply to generate a voltage difference. In this case, a voltage difference is generated between the upper and lower adhesive surfaces of the electrically conductive easy-peel adhesive. Because adhesiveness of the electrically conductive easy-peel adhesive on an object surface varies with voltages, and the adhesiveness of the electrically conductive easy-peel adhesive is weakened fast at a specific voltage, the electrically conductive easy-peel adhesive is quite easily separated from an object surface at a positive electrode or a negative electrode. In this way, the display module or the housing is quickly dismantled without damage. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
       To describe technical solutions in embodiments of the present invention more clearly, the following briefly describes the accompanying drawings required for describing the embodiments or the prior art. Apparently, the accompanying drawings in the following description show merely some embodiments of the present invention, and a person of ordinary skill in the art may derive other drawings from these accompanying drawings without creative efforts. 
         FIG. 1  is a schematic structural diagram of a first embodiment of a display according to the present invention; 
         FIG. 2  is a schematic structural diagram of a second embodiment of a display according to the present invention; 
         FIG. 3  is a schematic structural diagram of a third embodiment of a display according to the present invention; 
         FIG. 4  is a schematic structural diagram of a fourth embodiment of a display according to the present invention; 
         FIG. 5  is a schematic structural diagram of a fifth embodiment of a display according to the present invention; 
         FIG. 6  is a schematic structural diagram of a sixth embodiment of a display according to the present invention; and 
         FIG. 7  is a schematic flowchart of a display dismantlement method according to the present invention. 
     
    
    
     DESCRIPTION OF EMBODIMENTS 
     The following clearly describes the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are merely some but not all of the embodiments of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention. 
     The present invention provides a display assembly. The display assembly is applied to a display, and the display includes but is not limited to a display of a mobile phone, a tablet computer, or a computer. The display uses a display module usage architecture in which a housing and a display module is attached by using an electrically conductive easy-peel adhesive. The display module or the housing can be quickly dismantled without damage during repairing of the display that becomes faulty. The display assembly includes the housing, the electrically conductive easy-peel adhesive, and the display module, The housing includes an electric conductor attached to the electrically conductive easy-peel adhesive. The display module includes a conductive mounting surface in contact with the electrically conductive easy-peel adhesive, and the mounting surface is attached securely to the electric conductor by using the electrically conductive easy-peel adhesive. A first contact position is disposed on the electric conductor, and a second contact position is disposed on the mounting surface. When the first contact position and the second contact position are connected to a power supply, the electrically conductive easy-peel adhesive is removed from the display module or the housing. 
     The housing in the present invention includes but is not limited to one of a middle frame, a front housing, or a brace. The display module includes but is not limited to one of a touch panel-liquid crystal display (TP-LCD, Touch Panel-Liquid Crystal Display) module, a touch panel-organic light-emitting diode (TP-OLED, Touch Panel-Organic Light-Emitting Diode) module, a touch panel (TP, Touch Panel), a liquid crystal display (LCD), Liquid Crystal Display), or an organic light-emitting diode (OLED, Organic Light-Emitting Diode). 
     The display assembly provided in the present invention uses the display module usage architecture in which the housing and the display module is attached. by using the electrically conductive easy-peel adhesive, and the first contact position and the second contact position are respectively preset on the housing and the display module. When the display becomes faulty and needs to be repaired, the first contact position and the second contact position are simultaneously connected to the power supply to generate a voltage difference. In this case, a voltage difference is generated between upper and lower adhesive surfaces of the electrically conductive easy-peel adhesive. Because adhesiveness of the electrically conductive easy-peel adhesive on an object surface varies with voltages, and the adhesiveness of the electrically conductive easy-peel adhesive is weakened fast at a specific voltage, the electrically conductive easy-peel adhesive is quite easily separated from an object surface at a positive electrode or a negative electrode. In this way, the display module or the housing is quickly dismantled without damage. In addition, a retaining direction of the electrically conductive easy-peel adhesive is able to be determined. by changing a voltage direction of the power supply. For example, when the display module in the display is damaged, the display module can be dismantled, to retain the electrically conductive easy-peel adhesive on the housing and attach the adhesive to a new display module; or when the housing in the display is damaged, the housing can be dismantled, to retain the electrically conductive easy-peel adhesive on the display module and attach the adhesive to a new housing. In this way, maintenance of the display is easy with low costs. 
     An example in which the housing is a middle frame and the display module is a touch panel-liquid crystal display module is used for detailed description in the embodiments of the present invention. The display module includes a display panel and a touch panel laminated onto the display panel. The display panel includes a display surface and a first lower surface opposite to the display surface, and the touch panel includes a second lower surface facing the display panel. The mounting surface is a conductive body disposed on the first lower surface or the second lower surface, and the conductive body is electrically conductive. Details are described by using the following embodiments. 
     Referring to  FIG. 1 , in a first embodiment of the present invention, a housing is made of a metallic material, that is, a middle frame  10  is made of a metallic material. An electric conductor is the entire housing; a conductive body is a metal frame of a display module; and the metal frame is located on a first lower surface of the display module. Specifically, the middle frame  10  is made of a metallic material, and therefore the entire middle frame  10  may be used as the electric conductor. The middle frame  10  is provided with a mounting bracket  12 , and a surface, facing the conductive body, of the mounting bracket  12  is construed as a surface  11  of the electric conductor. In this embodiment, the middle frame  10  includes a sidewall  16  and a beam  17 , and the mounting bracket  12  is the beam  17  of the middle frame  10 . The display module  30  includes a display panel  340 , a touch panel  35  laminated onto the display panel, and the metal frame  33  that bears the display panel  340 . The metal frame is a metal layer that covers a periphery of the display panel  340  and that faces away from a display surface, or may be a framework that surrounds a periphery of the display panel  340 . The conductive body is the metal frame  33  of the display module  30 , the metal frame  33  of the display module  30  is disposed on a surface of an electrically conductive easy-peel adhesive  20 , and another surface of the electrically conductive easy-peel adhesive  20  is attached to the surface  11  of the mounting bracket  12 . In this embodiment, a first contact position is disposed on any surface of the middle frame  10 , that is, the first contact position may be located on a surface, facing away from the electrically conductive easy-peel adhesive  20 , of the mounting bracket  12 . A second contact position  32  is disposed on the metal frame  33 , the second contact position  32  is connected to a contact channel  36 , and the contact channel  36  provides a power connection for the second contact position  32 . The contact channel  36  is a through hole that penetrates through the mounting bracket  12 , the electrically conductive easy-peel adhesive  20 , and the metal frame  33 . When the through hole is used as a contact channel to externally connect to a power supply, the external power supply can conduct electricity for a bottom of the display module  30  directly by using the through hole. In another implementation, the contact channel  36  may be a lead extended from the second contact position  32 . When a lead is used as a contact channel to externally connect to a power supply, a contact channel location does not need to be specially set inside the housing, simplifying a manufacturing process. In addition, another electronic component shielding the contact channel location does not need to be first dismantled to externally connect the power supply, thereby facilitating an operation. During repairing of a display  100  that becomes faulty, an end of the external power supply is connected to the first contact position on the any surface of the middle frame  10 , and another end is connected to the second contact position  32  through the contact channel  36 . When a voltage difference is generated between the two ends, adhesiveness of the electrically conductive easy-peel adhesive  20  is weakened fast. In this way, the middle frame  10  or the display module  30  is quickly dismantled without damage. 
     Referring to  FIG. 2 , in a second embodiment of the present invention, different from the first embodiment, a housing is made of a non-metallic material, and an electric conductor is a conductive adhesive layer disposed on the housing, that is, a surface of the electric conductor in contact with an electrically conductive easy-peel adhesive is a surface of the conductive adhesive layer. Specifically, the housing is, for example, a middle frame. The middle frame  10  is made of a non-metallic material, a first conductive adhesive layer  13  is laminated onto a mounting bracket  12 , the electric conductor is the first conductive adhesive layer  13 , and a surface  11  of the first conductive adhesive layer  13  is in contact with the electrically conductive easy-peel adhesive  20 . A conductive body of a display module  30  is a metal frame  33  of the display module  30 , and the metal frame  33  of the display module  30  is disposed on a surface of the electrically conductive easy-peel adhesive  20 . In this embodiment, a first contact position  14  is disposed on the first conductive adhesive layer  13 , the first contact position  14  is connected to a first contact channel  15 , the first contact channel  15  provides a power connection for the first contact position  14 , and the first contact channel  15  is a through hole that penetrates through the middle frame  10  and the first conductive adhesive layer  13 . A second contact position  32  is disposed on the metal frame  33 , the second contact position  32  is connected to a second contact channel  37 , the second contact channel  37  provides a power connection for the second contact position  32 , and the second contact channel  37  is a through hole that penetrates through the mounting bracket  12 , the electrically conductive easy-peel adhesive  20 , and the metal frame  33 . The through hole is used as a contact channel, to help an external power supply conduct electricity for the first conductive adhesive layer  13  of the middle frame  10  and the metal frame of the display module  30  by using the first contact channel  15  and the second contact channel  37 . In another implementation, the first contact channel  15  and the second contact channel  37  may alternatively be leads extended from the first contact position  14  and the second contact position  32 , respectively. When a display is being dismantled for repair, it helps the external power supply directly conduct electricity for the first contact position  14  and the second contact position  32 , without dismantlement of an electronic component shielding the first contact channel  15  and the second contact channel  37 . 
     As shown in  FIG. 3 , in a third embodiment of the present invention, different from the second embodiment, a housing is made of a metallic material, and. a conductive body is a conductive adhesive layer of a display module; and when the conductive body is the conductive adhesive layer laminated on the display module, the conductive body may be disposed on a first lower surface of the display module. Specifically, the housing is, for example, a middle flame. The middle frame  10  is made of a metallic material, and the entire middle frame  10  is an electric conductor. The display module  30  includes a conductive adhesive layer  38  laminated onto a display panel  341 , the conductive adhesive layer  38  is disposed on a surface, facing away from a touch panel  35 , of the display panel  341 , the conductive body is the conductive adhesive layer  38 , and the conductive adhesive layer  38  of the display module  30  is disposed on a surface of an electrically conductive easy-peel adhesive  20 . In this embodiment, a surface, in contact with the conductive body, of the display panel  341  is not conductive. A first contact position is disposed on any surface of the middle frame  10 , that is, the first contact position may be located on a surface, facing away from the electrically conductive easy-peel adhesive  20 , of a mounting bracket  12 . A second contact position  32  is disposed on the conductive adhesive layer  38 , the second contact position  32  is connected to a contact channel  36 , and the contact channel  36  provides a power connection for the second contact position  32 . The contact channel  36  is a through hole that penetrates through the mounting bracket  12 , the electrically conductive easy-peel adhesive  20 , and the conductive adhesive layer  38 . When the through hole is used as a contact channel to externally connect to a power supply, the external power supply can conduct electricity for a bottom of the display module  30  directly by using the through hole. It can be understood that the contact channel  36  may be a lead extended from the second contact position  32 , to help the external power supply conduct electricity for the second contact position. 
     Referring to  FIG. 4 , in a fourth embodiment of the present invention, different from the third embodiment, a housing is made of a non-metallic material; an electric conductor is a conductive adhesive layer disposed on the housing, that is, a surface in contact with an electrically conductive easy-peel adhesive is a surface of the conductive adhesive layer; and a conductive body is a second conductive adhesive layer of a display module. Specifically, the housing is, for example, a middle frame. The middle frame  10  is made of a non-metallic material, a first conductive adhesive layer  13  is laminated onto the middle frame  10 , and the electric conductor is the first conductive adhesive layer  13 . A surface  11  of the first conductive adhesive layer  13  is in contact with the electrically conductive easy-peel adhesive  20 . The display module  30  includes a second conductive adhesive layer  39  laminated onto a display panel  341 , the second conductive adhesive layer  39  is disposed on a first lower surface, facing away from a touch panel  35 , of the display panel  341 , the conductive body is the second conductive adhesive layer  39  laminated onto the display module  30 , and the second conductive adhesive layer  39  of the display module  30  is located on a surface of the electrically conductive easy-peel adhesive  20 . In this embodiment, a surface, in contact with the conductive body, of the display panel  341  is not conductive. A first contact position  14  is disposed on the first conductive adhesive layer  13 , the first contact position  14  is connected to a first contact channel  15 , the first contact channel  15  provides a power connection for the first contact position  14 , and the first contact channel  15  is a through hole that penetrates through the middle frame  10  and the first conductive adhesive layer  13 . A second contact position  32  is disposed on the second conductive adhesive layer  39 , the second contact position  32  is connected to a second contact channel  37 , the second contact channel  37  provides a power connection for the second contact position  32 , and the second contact channel  37  is a through hole that penetrates through a mounting bracket  12 , the electrically conductive easy-peel adhesive  20 , and the second conductive adhesive layer  39 . An external power supply may conduct electricity both for the first contact position  14  and the second contact position  32  by using the through holes. In another implementation of this embodiment, the first contact channel  15  and the second contact channel  37  may be leads extended from the first contact position  14 . 
     When a conductive body is a conductive adhesive layer laminated onto a display module, the conductive body may alternatively be disposed on a second lower surface of the display module. As shown in  FIG. 5 , in a fifth embodiment of the present invention, different from the fourth embodiment, a middle frame  10  further includes a step portion  18 , a mounting bracket  12  is the step portion  18  of the middle frame  10 , and a location of the step portion  18  is higher than that of a beam  17 . In this embodiment, a housing is made of a non-metallic material, and the conductive body is a second conductive adhesive layer of the display module. Specifically, the housing is, for example, a middle frame. The middle frame  10  is made of a non-metallic material, a first conductive adhesive layer  13  is laminated onto the mounting bracket  12 , an electric conductor is the first conductive adhesive layer  13 , and a surface  11  of the first conductive adhesive layer  13  is in contact with an electrically conductive easy-peel adhesive  20 . The display module  30  includes a second conductive adhesive layer  39  laminated onto a touch panel  35 , the second conductive adhesive layer  39  is disposed on a second lower surface, facing a display panel  343 , of the touch panel  35 , the conductive body is the second conductive adhesive layer  39  laminated onto the display module, a mounting surface of the display module  30  is a surface, facing the electrically conductive easy-peel adhesive  20 , of the second conductive adhesive layer  39 , and the display module  30  is attached to the step of the middle frame  10  by using the second conductive adhesive layer  39 . A surface, in contact with the conductive body, of the touch panel is not conductive. A first contact position  14  is disposed on the first conductive adhesive layer  13 , the first contact position  14  is connected to a first contact channel  15 , the first contact channel  15  provides a power connection for the first contact position  14 , and the first contact channel  15  is a through hole that penetrates through the middle frame  10  and the first conductive adhesive layer  13 . A second contact position  32  is disposed on the second conductive adhesive layer  39 , the second contact position  32  is connected to a second contact channel  37 , the second contact channel  37  provides a power connection for the second contact position  32 , and the second contact channel  37  is a through hole that penetrates through the mounting bracket  12 , the electrically conductive easy-peel adhesive  20 , and the second conductive adhesive layer  39 . An external power supply may conduct electricity both for the first contact position  14  and the second contact position  32  by using the through holes. in another implementation of this embodiment, the first contact channel  15  and the second contact channel  37  may be leads extended from the first contact position  14 . 
     Referring to  FIG. 6 , in a sixth embodiment of the present invention, different from the fifth embodiment, a housing is made of a metallic material, and a conductive body is a conductive adhesive layer of a display module. Specifically, the middle frame  10  is made of a metallic material, and therefore the entire middle frame  10  may he used as an electric conductor. The display module  30  includes a conductive adhesive layer  38  laminated onto a touch panel  35 , the conductive adhesive layer  38  is disposed on a second lower surface, facing a display panel  343 , of the touch panel  35 , the conductive body is the conductive adhesive layer  38  laminated onto the display module, and a mounting surface of the display module  30  is a surface, facing an electrically conductive easy-peel adhesive  20 , of the conductive adhesive layer  38 . in this embodiment, a first contact position is disposed on any surface of the middle frame  10 . For example, the first contact position may be located on a surface, facing away from the electrically conductive easy-peel adhesive  20 , of a mounting bracket  12 . A second contact position  32  is disposed on the conductive adhesive layer  38 , the second contact position  32  is connected to a contact channel  36 , and the contact channel  36  provides a power connection for the second contact position  32 . The contact channel  36  is a through hole that penetrates through the mounting bracket  12 , the electrically conductive easy-peel adhesive  20 , and the conductive adhesive layer  38 . The through hole is used as a contact channel, to help an external power supply conduct electricity for the conductive adhesive layer of the display module  30  by using the contact channel  36 . It can he understood that the contact channel  36  may be a lead extended from the second contact position  32 . When a display becomes faulty and needs to be dismantled for repair, another electronic component shielding the contact channel does not need to be first dismantled to find a specific contact channel location, thereby facilitating an operation. 
     A manner of laminating the conductive body that includes a metal frame or a conductive adhesive layer onto the display module and a manner of laminating the conductive adhesive layer onto the middle frame are not specifically limited in the present invention. For example, the lamination manner may be an adhesion manner by using an adhesive. The metal frame includes but is not limited to an iron frame or a copper foil. The conductive adhesive layer includes but is not limited to a metal film layer or a plastic film with a metallic material. 
     The present invention further provides a display. The display includes a backlight source and any display assembly according to Embodiments 1 to 6, where the backlight source provides a light source for the display assembly. The present invention provides a terminal. The terminal includes the foregoing display, that is, includes the foregoing display assembly. 
     Referring to  FIG. 7 , the present invention further provides a display dismantlement method, so as to quickly dismantle a display module or a housing in a display without damage. The display uses a display module architecture in which the housing and the display module is attached by using an electrically conductive easy-peel adhesive, upper and lower adhesive surfaces of the electrically conductive easy-peel adhesive are both conductive, a first contact position is preset on the housing, and a second contact position is preset on the display module. When the first contact position and the second contact position are simultaneously connected. to a power supply, a conductive loop may be formed between the first contact position and the second contact position. The display described in this method is the display described in the foregoing embodiments. The display dismantlement method includes the following steps. 
     S1. Connect a first contact position on a display module and a second contact position on an electric conductor respectively to a positive electrode and a negative electrode of a direct current power supply, so that a voltage is generated between a mounting surface of the display module and the electric conductor that are attached to an electrically conductive easy-peel adhesive. A retaining direction of the electrically conductive easy-peel adhesive is able to be determined by changing a voltage direction. The electric conductor is a housing or a conductive adhesive layer disposed on a surface of the housing. 
     When the electric conductor is a housing, the first contact position is located on any surface of the housing, and the second contact position is connected to a contact channel. When the contact channel is a through hole that penetrates through the housing and the electrically conductive easy-peel adhesive, an end of the external power supply is connected to the first contact position on the any surface of the housing, and another end is connected to the second contact position through the through hole, so that a voltage is generated between the mounting surface of the display module and the electric conductor of the housing that are attached to the electrically conductive easy-peel adhesive, to change adhesiveness of the electrically conductive easy-peel adhesive. In another implementation, the contact channel may be a lead extended from the second contact position. When a lead is used as a contact channel to externally connect to the power supply, more electronic components other than the display module and the housing do not need to be first dismantled to find a. specific contact channel location, thereby facilitating an operation. 
     When the electric conductor conducts electricity for some areas of a conductive adhesive layer, a first conductive adhesive layer is laminated onto the housing, the first contact position is located on the first conductive adhesive layer, the first contact position is connected to a first contact channel, and the second contact position is connected to a second contact channel. The first contact channel is a through hole that penetrates through the housing and the first conductive adhesive layer, and the second contact channel is a through hole that penetrates through the housing and the electrically conductive easy-peel adhesive. The external power supply directly conducts electricity for the first contact position and the second contact position by using the through holes, so that a voltage is generated between the mounting surface of the display module and the electric conductor that are attached to the electrically conductive easy-peel adhesive, to change adhesiveness of the electrically conductive easy-peel adhesive. It can be understood that the first contact channel and the second contact channel may alternatively be leads extended from the first contact position and the second contact position, respectively. In this case, the external power supply can he directly connected to the leads, avoiding dismantlement of an electronic component shielding the contact channels. 
     S2. Remove the display module or the housing from the electrically conductive easy-peel adhesive. In this step, because a retaining location of the electrically conductive easy-peel adhesive is determined by a direction of a direct current voltage, when the adhesiveness of the electrically conductive easy-peel adhesive is weakened, the housing or the display module may be removed from a surface of the electrically conductive easy-peel adhesive. For example, when the display module in the display is damaged, the display module can be dismantled, to retain the electrically conductive easy-peel adhesive on the housing and attach the adhesive to a new display module; or when the housing in the display is damaged, the housing can be dismantled, to retain the electrically conductive easy-peel adhesive on the display module and attach the adhesive to a new housing. 
     According to the display and the display dismantlement method in the present invention, the electrically conductive easy-peel adhesive is configured to attach to the display module and the housing, and the first contact position and the second contact position are respectively preset on the housing and the display module. When the display becomes faulty and needs to be repaired, because the adhesiveness of the electrically conductive easy-peel adhesive varies with voltages, the first contact position and the second contact position are simultaneously connected to the external direct current power supply, so that a voltage difference is generated between upper and lower adhesive surfaces of the electrically conductive easy-peel adhesive. The adhesiveness of the electrically conductive easy-peel adhesive changes, and therefore an object on the adhesive surfaces is easily removed from the surface of the electrically conductive easy-peel adhesive. In this way, the display module or the housing is dismantled without damage. 
     What is disclosed above is merely example embodiments of the present invention, and certainly is not intended to limit the scope of the claims of the present invention. A person of ordinary skill in the art can understand that all or some of processes that implement the foregoing embodiments and equivalent modifications made in accordance with the claims of the present invention shall fall within the scope of the present invention.