CN215067619U

CN215067619U - Electronic equipment, shell assembly, display device and PDLC module

Info

Publication number: CN215067619U
Application number: CN202120601432.3U
Authority: CN
Inventors: 李辉
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-03-23
Filing date: 2021-03-23
Publication date: 2021-12-07
Anticipated expiration: 2031-03-23

Abstract

The application provides an electronic device, a shell assembly, a display device and a PDLC module; the PDLC module comprises a first membrane, a second membrane and a polymer dispersed liquid crystal layer clamped between the first membrane and the second membrane; the first diaphragm comprises a first substrate and a first conducting layer which are arranged in a stacked mode; the second diaphragm comprises a second substrate and a second conducting layer which are arranged in a stacked mode; the first conducting layer of the first membrane is arranged on one side, away from the polymer dispersed liquid crystal layer, of the first substrate; the second conducting layer of the second membrane is arranged on one side, away from the polymer dispersed liquid crystal layer, of the second substrate, or the second conducting layer is arranged between the second substrate and the polymer dispersed liquid crystal layer. The PDLC module can simplify the packaging process of the PDLC module and reduce the production cost of the PDLC module; meanwhile, the conductive layers on the two sides are not required to be in conductive connection, the FPC is bound with the conductive layers on the two sides respectively, the binding process of the FPC can be simplified, and the packaging reliability of the PDLC module is improved.

Description

Electronic equipment, shell assembly, display device and PDLC module

Technical Field

The invention relates to the technical field of PDLC module stacking structures, in particular to electronic equipment, a shell assembly and a PDLC module.

Background

PDLC (polymer dispersed liquid crystal), which is a liquid crystal dispersed in an organic solid polymer matrix in the form of micro-droplets, has a refractive index not matched with that of the matrix due to the free orientation of the optical axis of the micro-droplets, and is strongly scattered by the micro-droplets to form opaque milky white or translucent state when light passes through the matrix.

Disclosure of Invention

An aspect of an embodiment of the present application provides a PDLC module, where the PDLC module includes a first film, a second film, and a polymer dispersed liquid crystal layer sandwiched between the first film and the second film;

the first diaphragm comprises a first substrate and a first conducting layer which are arranged in a stacked mode;

the second diaphragm comprises a second substrate and a second conducting layer which are arranged in a stacked mode;

the first conducting layer of the first membrane is arranged on one side, away from the polymer dispersed liquid crystal layer, of the first substrate; the second conducting layer of the second membrane is arranged on one side, away from the polymer dispersed liquid crystal layer, of the second substrate, or the second conducting layer is arranged between the second substrate and the polymer dispersed liquid crystal layer.

Another aspect of the embodiments of the present application further provides a housing assembly, where the housing assembly includes a transparent housing and the PDLC module of any one of the above embodiments, and the transparent housing is attached to the first diaphragm or the second diaphragm of the PDLC module.

In addition, an embodiment of the present application further provides a display device, where the display device includes a backlight module disposed in a stacked manner and the PDLC module in any of the above embodiments.

Further, an embodiment of the present application further provides an electronic device, where the electronic device includes a control circuit board and the housing assembly in the foregoing embodiment; the control circuit board is electrically connected with the PDLC module.

An embodiment of the present application further provides an electronic device, where the electronic device includes a control circuit board and the display device in the above embodiment; the control circuit board is electrically connected with the display device.

According to the PDLC module provided by the embodiment of the application, the conductive electrode on at least one side is arranged on the outer side of the substrate, so that the packaging process of the PDLC module can be simplified, and the production cost of the PDLC module is reduced; meanwhile, the conductive layers on the two sides are not required to be in conductive connection, the FPC is bound with the conductive layers on the two sides respectively, the binding process of the FPC can be simplified, and the packaging reliability of the PDLC module is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a PDLC membrane modified by the previous technical scheme;

FIG. 2 is a schematic structural diagram of another embodiment of a PDLC membrane before improvement;

fig. 3 is a schematic structural diagram of a PDLC module according to an embodiment of the present application;

FIG. 4 is a schematic front view of the PDLC module shown in FIG. 3;

FIG. 5 is a schematic cross-sectional view of the PDLC module in the embodiment of FIG. 4 at A-A;

fig. 6 is a schematic structural diagram of another embodiment of a PDLC module according to the present application;

fig. 7 is a schematic structural diagram of a PDLC module according to another embodiment of the present application;

FIG. 8 is a schematic structural view of an embodiment of the housing assembly of the present application;

FIG. 9 is a schematic diagram of a back structure of an embodiment of the electronic device of the present application;

FIG. 10 is a schematic cross-sectional view of the electronic device of the embodiment of FIG. 9 at B-B;

FIG. 11 is a block diagram illustrating the structural components of an embodiment of the electronic device of the present application;

FIG. 12 is a schematic structural diagram of an embodiment of a display device according to the present application.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be noted that the following examples are only illustrative of the present invention, and do not limit the scope of the present invention. Likewise, the following examples are only some but not all examples of the present invention, and all other examples obtained by those skilled in the art without any inventive step are within the scope of the present invention.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

As used herein, a "communication terminal" (or simply "terminal") includes, but is not limited to, a device that is configured to receive/transmit communication signals via a wireline connection, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection, and/or another data connection/network, and/or via a wireless interface (e.g., for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and/or another communication terminal). A communication terminal arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; a Personal Communications System (PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, Web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. The mobile phone is a mobile terminal equipped with a cellular communication module.

The general mode of the stacking structure of PDLC (polymer dispersed liquid crystal, also called PDLC (polymer dispersed liquid crystal) film-adjusting product is PET/ITO + FPC/PDLC/ITO + FPC/PET, and FPC (Flexible Printed Circuit, abbreviated as FPC) is connected to two layers of ITO as a conducting wire, so as to form completely independent conducting wires in a longitudinal space, please refer to fig. 1, which is a schematic structural diagram of a PDLC membrane improvement prior art, wherein, in fig. 1, a label 1 is represented by upper PET, a label 2 is represented by upper ITO, a label 3 is represented by upper PDLC layer, a label 4 is represented by lower ITO, a label 5 is represented by lower PET, a label 6 is represented by upper FPC, and a label 7 is represented by lower FPC.

The technical solution in fig. 1 mainly has the following problems. The PDLC light modulation diaphragm has a complex structure and a complex processing technology. The FPC binding area needs to be independently bound on the two sides of the upper layer PET/ITO and the lower layer PET/ITO. The binding process of the upper layer is ' half-cutting PDLC (cutting through PTE and ITO of the upper layer) ' -wiping PDLC binding position-ACF (Anisotropic Conductive Film) ' -attaching-binding FPC-overturning membrane; the above process is then repeated on the other side to perform the FPC bonding process of the lower layer. The structure has complex process and inconvenient operation, and the production yield is influenced; in addition, due to the limitation of the stacking space, the two FPCs are close to each other, and the binding difficulty is increased.

Referring to fig. 2, fig. 2 is a schematic structural diagram of another technical solution before the PDLC film is improved. In the technical scheme, the PDLC membrane adopts a stacking structure of PET/ITO + Ag/PDLC/ITO + FPC/PET. The design stacking structure optimizes the connection mode of the FPC and the ITO conductive layer; the upper layer is communicated with the inside of the device through silver paste, so that the FPC is integrated on a plane to be bound and connected, and a complete circuit is formed. In fig. 2, reference numeral 1 denotes an upper PET, reference numeral 2 denotes an upper ITO, reference numeral 3 denotes an upper PDLC layer, reference numeral 4 denotes a lower ITO, reference numeral 5 denotes a lower PET, reference numeral 6 denotes a silver paste for conducting the upper and lower ITO layers, and reference numeral 7 denotes an FPC.

The technical solution in fig. 2 mainly has the following problems. According to the structure of the PDLC (polymer dispersed liquid crystal) dimming diaphragm, silver paste is adopted to conduct ITO (indium tin oxide) of an upper diaphragm and a lower diaphragm in advance, then FPC (flexible printed circuit) binding (namely single-face binding) is completed on one piece of PET/ITO, and the binding process comprises the steps of half-cutting (cutting through PET and ITO layers on one side), conducting position removing, wiping, silver paste dispensing, curing, half-cutting binding, wiping, binding, ACF attaching and binding FPC. The technological process of the structure is also complex, and the process of conducting up and down needs a plurality of manual operation working sections (film uncovering and wiping, silver paste dispensing, wiping and binding and positioning), so that the production yield is low; in addition, the silver paste is weak in connection after being cured, so that the silver paste is easy to damage in an electrostatic test to cause failure, and the reliability of a product is poor.

In view of the technical problems in the foregoing technical solutions, embodiments of the present application provide a structure of a PDLC module. Please refer to fig. 3, fig. 3 is a schematic structural diagram of a PDLC module according to an embodiment of the present application, and it should be noted that the PDLC module according to the embodiment of the present application can be used in a display device and as a color-changing housing of an electronic device, and the electronic device may include a mobile phone, a tablet computer, a notebook computer, a wearable device, and the like. The PDLC module 100 includes, but is not limited to, the following structural components: a first film 110, a second film 120, and a polymer dispersed liquid crystal layer (i.e., a PDLC layer) 130. It should be noted that the terms "comprises" and "comprising," and any variations thereof, in the embodiments of the present application, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or may alternatively include other components or elements inherent to such process, method, article, or apparatus.

Specifically, the polymer dispersed liquid crystal layer 130 is sandwiched between the first film 110 and the second film 120. The first membrane 110 includes a first substrate 111 and a first conductive layer 112 stacked together; the second membrane 120 includes a second substrate 121 and a second conductive layer 122 stacked on each other. In this embodiment, the first conductive layer 112 of the first film 110 is disposed on a side of the first substrate 111 away from the polymer dispersed liquid crystal layer 130; the second conductive layer 122 of the second film 120 is disposed between the second substrate 121 and the polymer dispersed liquid crystal layer 130. The working principle of the PDLC module 100 is as follows: an electric field is formed between the first conductive layer 112 and the second conductive layer 122, so that liquid crystal molecules in the polymer dispersed liquid crystal layer 130 are deflected, and the transmittance of light is changed.

Optionally, the PDLC module 100 in this embodiment further includes a flexible circuit board 140, where the flexible circuit board 140 is electrically connected to the first conductive layer 112 and the second conductive layer 122, respectively, and the flexible circuit board 140 is conveniently bound to the first conductive layer 112 and the second conductive layer 122 by the design structure.

Referring to fig. 4 and 5 together, fig. 4 is a schematic structural front view of the PDLC module in the embodiment of fig. 3, and fig. 5 is a schematic structural sectional view of the PDLC module at a-a in the embodiment of fig. 4. In the PDLC module of this embodiment, the stacking directions of the first film 110 and the second film 120 are the same (the conductive layers are both on the same side of the substrate, which is the upper side in the illustration of this embodiment), so the conductive directions of the FPC and the first conductive layer 11122 and the second conductive layer 122 are the same, and the connection can be completed by one-time binding. The bonding process of the structure is to half-cut the first Film 110, wipe the polymer dispersed liquid crystal layer 130, attach a Conductive material (specifically, an Anisotropic Conductive Film, ACF for short) 150 on the second Conductive layer 122, and bond the first end 141 of the flexible circuit board 140. The second end 142 of the flexible circuit board 140, which is connected to the first conductive layer 112, is electrically connected directly through a conductive material 160 (such as ACF, silver paste, etc.). The binding process of the flexible circuit board 140, the first conductive layer 112 and the second conductive layer 122 is completed at the same side of the PDLC module, the PDLC module does not need to be turned over, the process flow of FPC fixing in the binding of the traditional PDLC dimming film is simplified, and the yield is improved and the cost is reduced. In addition, a manufacturing process of conducting the upper conducting layer and the lower conducting layer by silver paste is not needed, so that the electrostatic risk caused by the silver paste is eliminated, the mechanical reliability of the device is improved, and the risk of circuit breaking is reduced. The conductive layers are not attached but are separated by the PET, so that the short circuit risk caused by factors such as impurities introduced by the manufacturing process or puncture is reduced. It should be noted that the terms "first", "second" and "third" in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Alternatively, the first substrate 111 and the second substrate 121 are made of flexible transparent resin. Thereby making the PDLC module 100 flexible and bendable. The first substrate 111 and the second substrate 121 function to support and protect internal structures. In some embodiments, the first substrate 111 and the second substrate 121 may be made of PET (Polyethylene terephthalate, PET or PEIT, polyester resin, or a condensation polymer of terephthalic acid and ethylene glycol), PMMA (poly (methyl methacrylate), PMMA (PMMA), or acryl, Acrylic, or organic glass), PC (Polycarbonate, PC) is a polymer containing carbonate in a molecular chain, PI (Polyimide), and the like. Further material types for the first substrate 111 and the second substrate 121 are not listed and described in detail herein, which is within the understanding of those skilled in the art.

Alternatively, the first conductive layer 112 and the second conductive layer 122 may be formed by Physical Vapor Deposition (PVD), which specifically includes vacuum evaporation, sputtering, ion plating (hollow cathode ion plating, hot cathode ion plating, arc ion plating, reactive ion plating, radio frequency ion plating, direct current discharge ion plating), and the like.

The thicknesses of the first conductive layer 112 and the second conductive layer 122 may be between 100nm and 300nm, and specifically may be 100nm, 120nm, 150nm, 200nm, 280nm, 300nm, and the like. The first conductive layer 112 and the second conductive layer 122 are made of flexible transparent conductive materials. The transparent conductive material can be Indium Tin Oxide (ITO), zinc aluminum oxide (AZO), tin oxide doped with Fluorine (FTO), graphene film or the like.

According to the PDLC module provided by the embodiment of the application, the conductive layer on one side is arranged on the outer side of the substrate, so that the packaging process of the PDLC module can be simplified, and the production cost of the PDLC module is reduced; meanwhile, the conductive layers on the two sides are not required to be in conductive connection, the FPC is bound with the conductive layers on the two sides respectively, the binding process of the FPC can be simplified, and the packaging reliability of the PDLC module is improved.

Referring to fig. 6, fig. 6 is a schematic structural diagram of a PDLC module according to another embodiment of the present application.

The PDLC module 100 in this embodiment also includes a first film 110, a second film 120, a polymer dispersed liquid crystal layer (i.e., PDLC layer) 130, and a flexible circuit board 140. The polymer dispersed liquid crystal layer 130 is sandwiched between the first film 110 and the second film 120. The first membrane 110 includes a first substrate 111 and a first conductive layer 112 stacked together; the second membrane 120 includes a second substrate 121 and a second conductive layer 122 stacked on each other. The first conductive layer 112 of the first film 110 is disposed on a side of the first substrate 111 facing away from the polymer dispersed liquid crystal layer 130; the second conductive layer 122 of the second film 120 is disposed between the second substrate 121 and the polymer dispersed liquid crystal layer 130.

Optionally, different from the foregoing embodiment, the PDLC module 100 in this embodiment further includes a protection layer 170, and the protection layer 170 is disposed on the first conductive layer 112 in a covering manner. The protective layer 170 may be a film material having water and oxygen barrier properties. The protective layer 170 mainly serves to protect the first conductive layer 112 and the polymer dispersed liquid crystal layer 130. The material of the protection layer 170 may be selected from any one of a dense metal oxide layer, an inorganic non-metal layer, or a composite layer formed by stacking materials and inorganic materials. Such as alumina, silicon oxide, titanium oxide, a synthetic resin material, or a laminated composite structure of a plurality of materials, or the like. The protective layer 170 may be formed on the surface of the first conductive layer 112 by spraying, silk-screen printing, physical vapor deposition, or the like, or the protective layer 170 is a separate membrane structure and attached to the surface of the first conductive layer 112. It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

The PDLC module in this embodiment can play good guard action to conducting layer and polymer dispersed liquid crystal layer through setting up the protective layer structure, and then improves the water oxygen sealing reliability of PDLC module, prolongs the life of PDLC module.

Referring to fig. 7, fig. 7 is a schematic structural diagram of a PDLC module according to another embodiment of the present application. The PDLC module 100 in this embodiment also includes a first film 110, a second film 120, a polymer dispersed liquid crystal layer (i.e., PDLC layer) 130, and a flexible circuit board 140. The polymer dispersed liquid crystal layer 130 is sandwiched between the first film 110 and the second film 120. The first membrane 110 includes a first substrate 111 and a first conductive layer 112 stacked together; the second membrane 120 includes a second substrate 121 and a second conductive layer 122 stacked on each other. The first conductive layer 112 of the first film 110 is disposed on a side of the first substrate 111 facing away from the polymer dispersed liquid crystal layer 130. Unlike the previous embodiments, the second conductive layer 122 of the second film 120 is disposed on a side of the second substrate 121 facing away from the polymer dispersed liquid crystal layer 130, that is, the first conductive layer 112 and the second conductive layer 122 are both located on the outer side.

According to the PDLC module with the structure, the flexible circuit board 140 is directly bonded with the first conducting layer 112 and the second conducting layer 122 from two opposite sides, so that the binding can be realized, the steps of grooving, wiping the PDLC layer and the like are not needed, and the binding process is simpler. Compared with the embodiment shown in fig. 3, the embodiment has the advantages that the conducting layers on the two sides are arranged on the outer sides, so that the binding difficulty of the flexible circuit board can be greatly reduced, and the cost of the binding process can be further reduced. In addition, in the present embodiment, a protective layer and other structures may be disposed on the outer surfaces of the first conductive layer 112 and the second conductive layer 122, which are not illustrated and described in detail herein.

In addition, a housing assembly is further provided in the present embodiment, please refer to fig. 8, fig. 8 is a schematic structural diagram of the housing assembly in the present embodiment, and the housing assembly in the present embodiment includes a PDLC module 100 and a transparent housing 200. The transparent housing 200 is attached to the first film or the second film of the PDLC module 100. In this embodiment, the transparent housing 200 is attached to one side of the first film 110 of the PDLC module 100, specifically, is attached to the protective layer 170 located outside the first conductive layer 112 of the first film 110 through an optical adhesive layer (not shown). The transparent casing 200 may be made of a transparent material such as glass or resin. The transparent case 200 in the embodiment of the present application generally refers to a rear cover, i.e., a battery cover, of the electronic device. It should be noted that the structure of the PDLC module 100 in this embodiment may be any one of the foregoing embodiments, and only one structure is illustrated in fig. 8. The shell assembly in this embodiment has the function of changing the light transmittance, and through the cooperation with other color film layers of electronic equipment, the abundant appearance effect of electronic equipment can be realized.

Further, an electronic device is provided in an embodiment of the present application, please refer to fig. 9 and fig. 10 together, fig. 9 is a back structure schematic diagram of an embodiment of the electronic device of the present application, fig. 10 is a cross-sectional structure schematic diagram of the electronic device at a position B-B in the embodiment of fig. 9, the electronic device in the embodiment includes a display screen module 30, a housing assembly 10, a control circuit board 20, and a camera module (decoration) 40; the housing assembly 10 may include a PDLC module 100, a transparent housing 200, and a middle frame 300. It should be noted that, in the embodiment of the present application, the electronic device is only described in a structure that the electronic device includes the middle frame, and in other embodiments, the electronic device may not include the middle frame structure, that is, a structure that a rear cover plate (the transparent casing 200) of the casing assembly directly cooperates with the display screen module 30, which is not limited herein.

Optionally, the display screen module 30, the PDLC module 100 of the housing assembly 10, and the transparent housing 200 are respectively disposed on two opposite sides of the middle frame 300. The display screen module 300 and the transparent shell 200 are matched to form an accommodating space 1000, the control circuit board 20 and the PDLC module 100 are arranged in the accommodating space 1000, and the PDLC module 100 is attached to the inner surface of the transparent shell 200. The control circuit board 20 is electrically connected to the conductive layer of the PDLC module 100 through a flexible circuit board, and the control circuit board 20 is used to control the PDLC module 100, so as to change the light transmittance of the PDLC module 100. The detailed technical features of other parts of the electronic device are within the understanding of those skilled in the art, and are not described herein.

Referring to fig. 11, fig. 11 is a block diagram illustrating a structural composition of an embodiment of an electronic device according to the present application, where the electronic device may be a mobile phone, a tablet computer, a notebook computer, a wearable device, and the like, and the embodiment illustrates a mobile phone as an example. The electronic device may include an RF circuit 910, a memory 920, an input unit 930, a display unit 940 (i.e., the display module 30 in the above embodiment), a sensor 950, an audio circuit 960, a wifi module 970, a processor 980 (which may be the control circuit board 20 in the above embodiment), a power supply 990, and the like. Wherein the RF circuit 910, the memory 920, the input unit 930, the display unit 940, the sensor 950, the audio circuit 960, and the wifi module 970 are respectively connected with the processor 980; power supply 990 is operable to provide power to the entire electronic device 10.

Specifically, the RF circuit 910 is used for transmitting and receiving signals; the memory 920 is used for storing data instruction information; the input unit 930 is used for inputting information, and may specifically include a touch panel 931 and other input devices 932 such as operation keys; the display unit 940 may include a display panel 941; the sensor 950 includes an infrared sensor, a laser sensor, etc. for detecting a user approach signal, a distance signal, etc.; a speaker 961 and a microphone 962 are connected to the processor 980 through the audio circuit 960 for emitting and receiving sound signals; the wifi module 970 is used for receiving and transmitting wifi signals, and the processor 980 is used for processing data information of the electronic device. For specific structural features of the electronic device, please refer to the related description of the above embodiments, and detailed descriptions thereof will not be provided herein.

The electronic device in this embodiment has an appearance effect of variable color. The PDLC module of the shell assembly is characterized in that at least one conductive electrode on one side is arranged on the outer side of the substrate, so that the packaging process of the PDLC module can be simplified, and the production cost of the PDLC module is reduced; meanwhile, the conductive layers on the two sides are not required to be in conductive connection, the FPC is bound with the conductive layers on the two sides respectively, the binding process of the FPC can be simplified, and the packaging reliability of the PDLC module is improved.

Optionally, an embodiment of the present application further provides a display device, please refer to fig. 12, where fig. 12 is a schematic structural diagram of an embodiment of the display device of the present application; the display device in this embodiment includes a backlight module 3000 and a PDLC module 100 stacked in layers. The PDLC module 100 may be any one of the above embodiments, and the light emitting surface of the backlight module 3000 is disposed corresponding to the PDLC module 100. In addition, the display device in some other embodiments may further include a touch module and other structures, which are not listed and described in detail herein. It should be noted that the display device in the embodiment of the present application may be used in a mobile phone, a tablet computer, a notebook computer, a display, a television, a wearable device, and the like. Such as a display module applied to the aforementioned embodiments.

The above description is only a part of the embodiments of the present invention, and not intended to limit the scope of the present invention, and all equivalent devices or equivalent processes performed by the present invention through the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The PDLC module is characterized by comprising a first membrane, a second membrane and a polymer dispersed liquid crystal layer clamped between the first membrane and the second membrane;

2. The PDLC module of claim 1, further comprising a flexible circuit board electrically connected to said first conductive layer and said second conductive layer, respectively.

3. The PDLC module of claim 1, wherein the first substrate and the second substrate are made of flexible transparent resin.

4. The PDLC module of claim 3, wherein the first substrate and the second substrate are made of any one of PET, PMMA, PC and PI.

5. The PDLC module of claim 1, wherein said first conductive layer and said second conductive layer are made of a flexible transparent conductive material.

6. The PDLC module of claim 5, wherein the first conductive layer and the second conductive layer are made of any one of Indium Tin Oxide (ITO), zinc aluminum oxide (AZO), tin oxide doped with Fluorine (FTO), and graphene thin film.

7. The PDLC module of claim 1, further comprising a protective layer covering said first conductive layer.

8. A housing assembly comprising a transparent housing and the PDLC module of any of claims 1-7, wherein the transparent housing is attached to the first membrane or the second membrane of the PDLC module.

9. A display device, comprising a backlight module and the PDLC module as claimed in any one of claims 1-7, wherein the backlight module and the PDLC module are stacked.

10. An electronic device, comprising a control circuit board and the housing assembly of claim 8; the control circuit board is electrically connected with the PDLC module.

11. An electronic apparatus, characterized in that the electronic apparatus comprises a control circuit board and the display device of claim 9; the control circuit board is electrically connected with the display device.