Screen module and electronic device

Abstract

The application discloses a screen module and an electronic device. The screen module is used for the electronic device. The electronic device comprises a middle frame. The screen module comprises a heat dissipation layer and a display assembly. The display assembly comprises a first electrode. The heat dissipation layer is attached to a side of the display assembly facing the middle frame. The heat dissipation layer is arranged opposite to the first electrode to form a pressure-sensitive capacitor. The first electrode arranged in the display assembly and the heat dissipation layer of the screen module form the pressure-sensitive capacitor. The first electrode and the heat dissipation layer occupy a smaller space in the thickness direction of the electronic device, thereby reducing the space occupied by the pressure-sensitive capacitor and the thickness of the electronic device, and facilitating the thin and light design of the electronic device.

Description

Technical Field

[0001] This application belongs to the field of electronic device technology, specifically relating to a screen module and an electronic device. Background Technology

[0002] Currently, electronic devices are equipped with pressure sensors to obtain the touch pressure on the screen module when the user touches it, thereby enriching the interaction methods of electronic devices.

[0003] In related technologies, pressure sensors are located below the screen module. When a user touches the screen module, the deformation resistor of the pressure sensor is compressed and deformed, thereby obtaining the touch pressure applied to the screen module. However, placing the pressure sensor below the screen module occupies internal space of the electronic device, increasing its thickness and hindering the design of a thinner and lighter electronic device. Summary of the Invention

[0004] This application aims to provide a screen module and electronic device that at least solves the problem of pressure sensors increasing the thickness of electronic devices.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows:

[0006] In a first aspect, this application proposes a screen module for use in an electronic device. The electronic device includes a mid-frame, and the screen module includes a heat dissipation layer and a display component. The display component includes a first electrode. The heat dissipation layer is attached to the side of the display component facing the mid-frame. The heat dissipation layer and the first electrode are disposed opposite to each other, forming a pressure-sensitive capacitor.

[0007] The screen module provided in this application has a heat dissipation layer and a first electrode of the display component that can form a pressure-sensitive capacitor. The capacitance value of the pressure-sensitive capacitor changes with the pressure applied to the display component. When a human touches the screen module, the pressure-sensitive capacitor is squeezed, and its capacitance value changes. The pressure applied to the screen module can then be obtained based on the capacitance value, thus enabling the detection of the pressure applied to the screen module and enriching the interaction methods of electronic devices.

[0008] Since the pressure-sensitive capacitor is formed by the first electrode set in the display component and the heat dissipation layer of the screen module, the first electrode and the heat dissipation layer occupy less space in the thickness direction of the electronic device, thereby reducing the space occupied by the pressure-sensitive capacitor, reducing the thickness of the electronic device, and facilitating the thinner and lighter design of the electronic device.

[0009] Because the pressure-sensitive capacitor is formed by the heat dissipation layer and the first electrode, it can be distributed over most or all areas of the screen module, thereby improving the accuracy of the pressure-sensitive capacitor in detecting the pressure on the touch screen module, thus improving the detection accuracy of the pressure-sensitive capacitor and enhancing the quality of electronic devices.

[0010] Because pressure-sensitive capacitors can be distributed across most or all areas of the screen module, they enable richer human-computer interaction methods, thereby enriching the functions of electronic devices and improving their operability.

[0011] Secondly, this application proposes an electronic device that includes the aforementioned screen module, and thus the electronic device possesses all the beneficial effects of the aforementioned screen module.

[0012] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0013] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0014] Figure 1 This is one of the schematic diagrams of an electronic device according to an embodiment of the present invention;

[0015] Figure 2 This is a schematic diagram of a screen module according to an embodiment of the present invention;

[0016] Figure 3 It is along Figure 2 Sectional view of AA;

[0017] Figure 4 This is a second schematic diagram of an electronic device according to an embodiment of the present invention;

[0018] Figure 5 This is a third schematic diagram of an electronic device according to an embodiment of the present invention.

[0019] Figure label:

[0020] 100 Heat dissipation layer, 200 Display component, 210 Display screen, 214 First pixel unit, 216 Second pixel unit, 218 Third pixel unit, 220 Polarizing film, 230 Optical adhesive, 240 Cover plate, 250 First electrode, 300 Housing, 310 Middle frame, 320 Cover body, 400 Flexible circuit board, 500 Pressure-sensitive control module, 600 Main control module, 700 Energy storage component, 800 Foam layer, 900 Metal wire. Detailed Implementation

[0021] Embodiments of the present invention will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0022] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0023] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] The following is combined Figures 1 to 5 A screen module and an electronic device according to embodiments of the present invention are described.

[0026] like Figure 1As shown, according to some embodiments of the present invention, the screen module is used in an electronic device. The electronic device includes a mid-frame 310, and the screen module includes a heat dissipation layer 100 and a display component 200. The display component 200 is connected to the mid-frame and includes a first electrode 250. The heat dissipation layer 100 is attached to the side of the display component 200 facing the mid-frame 310. The heat dissipation layer 100 and the first electrode 250 constitute a pressure-sensitive capacitor.

[0027] According to an embodiment of the present invention, in the screen module, the heat dissipation layer 100 and the first electrode 250 of the display component 200 can form a pressure-sensitive capacitor, the capacitance value of which changes with the pressure applied to the display component 200. When a human touches the screen module, the pressure-sensitive capacitor is squeezed, and its capacitance value changes. Therefore, the pressure applied to the screen module can be obtained based on the capacitance value, enabling the detection of pressure on the screen module and enriching the interaction methods of electronic devices.

[0028] Since the pressure-sensitive capacitor is formed by the first electrode 250 disposed in the display component 200 and the heat dissipation layer 100 of the screen module, the first electrode 250 and the heat dissipation layer 100 occupy less space in the thickness direction of the electronic device, thereby reducing the space occupied by the pressure-sensitive capacitor, reducing the thickness of the electronic device, and facilitating the thinner and lighter design of the electronic device.

[0029] Since the pressure-sensitive capacitor is formed by the heat dissipation layer 100 and the first electrode 250, the pressure-sensitive capacitor can be distributed in most areas or the entire area of ​​the screen module, thereby improving the accuracy of the pressure-sensitive capacitor in detecting the pressure on the touch screen module, thus improving the detection accuracy of the pressure-sensitive capacitor and improving the quality of electronic devices.

[0030] Because pressure-sensitive capacitors can be distributed across most or all areas of the screen module, they enable richer human-computer interaction methods, thereby enriching the functions of electronic devices and improving their operability.

[0031] Specifically, a foam layer 800 is provided between the heat dissipation layer 100 and the display component 200, and the foam layer 800 plays a buffering role when the display component 200 is impacted.

[0032] According to some embodiments of the present invention, such as Figure 1 As shown, the display assembly 200 includes a display screen 210, a polarizer 220, an optical adhesive 230, and a cover plate 240; the polarizer 220 is attached to the display screen 210; the optical adhesive 230 is attached to the polarizer 220; and the cover plate 240 is attached to the optical adhesive 230.

[0033] In this embodiment, the display assembly 200 includes a display screen 210, a polarizer 220, optical adhesive 230, and a cover plate 240. The display screen 210 can display images or videos according to the display needs of the electronic device. The polarizer 220 is disposed on the display screen 210, and the cover plate 240 is attached to the polarizer 220 by the optical adhesive 230, thereby achieving the installation and fixation of the cover plate 240. Furthermore, the cover plate 240 can prevent the polarizer 220 and the display screen 210 from being scratched, extend the stability of the display assembly 200 during use, and improve the service life of the display assembly 200.

[0034] Specifically, the display screen 210 is an organic light-emitting diode (OLED) display screen.

[0035] According to some embodiments of the present invention, such as Figure 2 and Figure 3 As shown, the display screen 210 is provided with a display area and a non-display area, with the non-display area surrounding the display area. The display screen 210 includes a cathode located in the display area; a first electrode 250 is arranged side by side with the cathode and located in the non-display area.

[0036] In this embodiment, the display screen 210 includes a display area and a non-display area. The location of the pixel unit on the display screen 210 is the display area, and the gap between adjacent pixels is the non-display area. The cathode is located in the display area and serves as the cathode of the pixel unit, enabling the pixel unit to emit light normally. The first electrode 250 is located in the non-display area and serves as an electrode of the pressure-sensitive capacitor, thereby achieving the detection of touch pressure while preventing the first electrode 250 from blocking the pixel unit and affecting the normal display of images on the screen module.

[0037] The first electrode 250 is arranged side-by-side with the cathode, so that the first electrode 250 does not occupy space in the thickness direction of the electronic device, further reducing the thickness of the electronic device. Furthermore, by patterning the electrode layer containing the cathode, the electrode layer can be divided into the first electrode 250 and the cathode, reducing the material cost required for setting up the pressure-sensitive capacitor. Moreover, by patterning the electrode layer containing the cathode to obtain the first electrode 250 and the cathode, the first electrode 250 does not affect the normal light emission of the pixel unit, improving the stability of the screen module during operation.

[0038] According to some embodiments of the present invention, the first electrode 250 is the anode of the display screen 210.

[0039] In this embodiment, the anode of the display screen 210 is used as the first electrode 250. While forming a pressure-sensitive flashlight, it does not affect the normal display of the display screen 210, thereby ensuring the stable operation of the screen module while realizing the detection of touch pressure.

[0040] By using the anode of the display screen 210 as the first electrode 250, there is no need to set an additional electrode layer as the first electrode 250. This means that the first electrode 250 constituting the pressure-sensitive capacitor does not need to occupy additional space in the electronic device, thereby further reducing the thickness of the electronic device while realizing touch pressure detection.

[0041] Furthermore, by using the anode of the display screen 210 as the first electrode 250, there is no need to set an additional electrode layer as the first electrode 250, which can also reduce the material cost required to set the pressure-sensitive capacitor, thereby reducing the cost of electronic devices and enhancing the market competitiveness of electronic devices.

[0042] By using the anode of the display screen 210 as the first electrode 250, the first electrode 250 can be prevented from blocking the display screen 210, thereby avoiding the pressure-sensitive capacitor from affecting the display accuracy of the display screen 210 and improving the display effect of the screen module.

[0043] According to some embodiments of the present invention, the first electrode 250 includes a second metal layer, which is attached to the polarizer 220 or the cover plate 240.

[0044] In this embodiment, by providing a second metal layer on the polarizer 220 or the cover plate 240, the second metal layer serves as the first motor, ensuring that the pressure-sensitive capacitor does not interfere with other metal layers, thereby improving the detection accuracy of the pressure-sensitive capacitor.

[0045] According to some embodiments of the present invention, in a direction perpendicular to the display screen 210, the projection of the second metal layer is located in the non-display area of ​​the display screen 210.

[0046] In this embodiment, the projection of the second metal layer in the direction perpendicular to the display screen 210 is located in the non-display area of ​​the display screen 210, so that the second metal layer is correspondingly set with the non-display area, thereby avoiding the first electrode 250 from blocking the pixel unit of the display screen 210, and thus avoiding the pressure-sensitive capacitor from affecting the display accuracy of the display screen 210, and improving the display effect of the screen module.

[0047] According to some embodiments of the present invention, the heat dissipation layer 100 includes copper foil; the second metal layer includes copper foil or metal film.

[0048] In this embodiment, the heat dissipation layer 100 includes copper foil, allowing the heat dissipation layer 100 to utilize the copper foil layer of the screen module as another electrode of the pressure-sensitive capacitor besides the first electrode 250, further reducing the material cost required for setting up the pressure-sensitive capacitor. The second metal layer includes copper foil or metal film, both of which can serve as the first electrode 250 and cooperate with the heat dissipation layer 100 to form a pressure-sensitive capacitor, thereby improving the accuracy of the pressure-sensitive capacitor in detecting touch pressure.

[0049] Specifically, the heat dissipation layer 100 is a copper foil disposed on the side of the screen module near the middle frame 310. The copper foil can accelerate the heat dissipation speed of the display component 200 and conduct the static electricity of the display component 200 to the middle frame 310.

[0050] According to some embodiments of the present invention, such as Figure 2 and Figure 3 As shown, the display screen 210 includes a first pixel unit 214, a second pixel unit 216, and a third pixel unit 218, which are arranged side by side in the display area.

[0051] In this embodiment, the first pixel unit 214, the second pixel unit 216 and the third pixel unit 218 are arranged side by side in the display area, so that the display component 200 can display the corresponding image or video as needed.

[0052] Specifically, the first pixel unit 214 is a red pixel, the second pixel unit 216 is a green pixel, and the third pixel unit 218 is a blue pixel.

[0053] According to some embodiments of the present invention, such as Figure 2 and Figure 3 As shown, there are multiple first electrodes 250, and the multiple first electrodes 250 are connected together.

[0054] In this embodiment, there are multiple first electrodes 250. Each of the multiple first electrodes 250 is arranged in parallel with the cathode of a pixel unit. The multiple first electrodes 250 are connected to avoid the small size of a single first electrode 250 affecting the detection accuracy of the pressure-sensitive capacitor, so that the pressure-sensitive capacitor has higher detection accuracy and improves the stability of the pressure-sensitive capacitor.

[0055] Specifically, since the single pixel size of the display screen 210 is too small, the first electrode 250 in a certain area is connected. The first electrode 250 after connection and the heat dissipation layer 100 form a large capacitor, while the first electrode 250 corresponding to the single pixel size and the heat dissipation layer 100 form a small capacitor. The large capacitor has better stability than the small capacitor, thereby realizing accurate detection of touch pressure.

[0056] Specifically, by adding a metal processing step, the connection of multiple first electrodes 250 is achieved, that is, the multiple first electrodes 250 are connected by metal wires 900.

[0057] According to some embodiments of the present invention, such as Figure 4 and Figure 5As shown, the display screen 210 includes multiple regions; multiple first electrodes 250 are respectively disposed in the multiple regions, and electrodes in the same region among the multiple first electrodes 250 are connected.

[0058] In this embodiment, the display screen 210 includes multiple areas, and the first electrodes 250 located in the same area are connected to each other, so that a pressure-sensitive capacitor is set in different areas of the screen module, thereby enabling the touch pressure of different areas to be detected, further enriching the interaction mode of the electronic device, and thus improving the quality of the electronic device.

[0059] An electronic device according to some embodiments of the present invention includes a screen module as described in any of the above embodiments, and therefore the electronic device possesses all the beneficial effects of the screen module of any of the above embodiments.

[0060] According to some embodiments of the present invention, such as Figure 1 and Figure 4 As shown, the electronic device also includes a flexible circuit board 400, a pressure-sensitive control module 500, and a main control module 600; the flexible circuit board 400 is electrically connected to the pressure-sensitive capacitor; the pressure-sensitive control module 500 is electrically connected to the flexible circuit board 400; and the main control module 600 is electrically connected to the pressure-sensitive control module 500.

[0061] In this embodiment, the screen module is mounted on the housing 300 for installation and fixation. The flexible circuit board 400 is electrically connected to the pressure-sensitive capacitor, and the pressure-sensitive control module 500 is electrically connected to the flexible circuit board 400, thereby sending the capacitance signal of the pressure-sensitive capacitor to the pressure-sensitive control module 500. The main control module 600 is electrically connected to the pressure-sensitive control module 500. The pressure-sensitive control module 500 processes the capacitance signal and then sends the processed capacitance signal to the main control module 600. This allows the main control module 600 to obtain the touch pressure of the screen module based on the change in the capacitance value of the pressure-sensitive capacitor, and to control the electronic device based on the touch pressure of the screen module. This enables human-computer interaction through touch pressure, enriching the interaction methods of the electronic device and improving the user experience.

[0062] The electronic device also includes a housing 300, on which the screen module is mounted.

[0063] Specifically, such as Figure 4 and Figure 5As shown, the screen module includes four regions: region B, region C, region D, and region E. The first electrode 250 in each of the four regions is interconnected, and the first electrode 250 in each region forms a pressure-sensitive capacitor with the heat dissipation layer 100. The first electrodes 250 in each of the four regions are connected to the pressure-sensitive control module 500 via internal wiring of the display screen 210 and a flexible circuit board 400. They are also connected to the pressure-sensitive control module 500 via the heat dissipation layer 100 and the flexible circuit board 400. When a finger presses on the screen module, the capacitance between the first electrode 250 in each of the four regions and the heat dissipation layer 100 changes. This change is calculated by the pressure-sensitive control module 500 and fed back to the main control module 600, providing pressure feedback.

[0064] Specifically, the screen module may also include six, eight or more areas.

[0065] Specifically, such as Figure 4 and Figure 5 As shown, the heat dissipation layer 100 is electrically connected to the contact F on the flexible circuit board 400.

[0066] According to some embodiments of the present invention, such as Figure 5 As shown, the pressure-sensitive control module 500 is integrated into the flexible circuit board 400.

[0067] In this embodiment, the pressure-sensitive control module 500 is integrated into the flexible circuit board 400. After processing the capacitance signal from the pressure-sensitive capacitor, the pressure-sensitive control module 500 can send the processed capacitance signal to the main control module 600 through the flexible circuit board 400. There is no need to set up additional electrical connection components between the pressure-sensitive control module 500 and the main control module 600, which further reduces the space occupied by the electronic device.

[0068] According to some embodiments of the present invention, such as Figure 1 As shown, the housing 300 includes a middle frame 310 and a cover 320; the screen module is attached to the first side of the middle frame 310; and the cover 320 is fastened to the second side of the middle frame 310.

[0069] In this embodiment, the screen module is installed and fixed by setting the middle frame 310, and the cover plate 240 is placed on the second side of the middle frame 310. The cover plate 240 and the middle frame 310 constitute the housing 300 of the electronic device.

[0070] According to some embodiments of the present invention, such as Figure 1 As shown, the middle frame 310 and the cover 320 enclose a receiving cavity. The electronic device also includes an energy storage component 700, which is disposed in the receiving cavity and electrically connected to the main control module 600.

[0071] In this embodiment, an energy storage component 700 is provided between the middle frame 310 and the cover 320. The energy storage component 700 can store electrical energy and thus power the electronic device.

[0072] Specifically, the energy storage component 700 is a lithium battery.

[0073] According to some embodiments of the present invention, such as Figure 1 As shown, the pressure-sensitive control module 500, the main control module 600, and the energy storage component 700 are arranged side by side.

[0074] In this embodiment, the pressure-sensitive control module 500, the main control module 600, and the energy storage component 700 are arranged in parallel to reduce the space occupied by the pressure-sensitive control module 500, the main control module 600, and the energy storage component 700 in the thickness direction of the electronic device, thereby improving the utilization rate of the internal space of the electronic device and reducing the thickness of the electronic device.

[0075] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0076] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A screen module, characterized in that, The screen module is used in an electronic device, the electronic device including a mid-frame, and the screen module including: The display component is connected to the mid-frame, the display component includes a first electrode, the display component includes a display screen, the display screen is provided with a display area and a non-display area, the non-display area surrounds the display area, and the display screen includes a cathode located in the display area; The display component further includes: A polarizer is attached to the display screen; Optical adhesive, which is bonded to the polarizer; Cover plate, the cover plate being adhered to the optical adhesive; The first electrode is arranged side by side with the cathode, and the first electrode is located in the non-display area, wherein the first electrode is the anode of the display screen; A heat dissipation layer is attached to the side of the display component facing the mid-frame; The heat dissipation layer is disposed opposite to the first electrode, forming a pressure-sensitive capacitor; There are multiple first electrodes, and the multiple first electrodes are connected together; The display screen includes multiple areas; Multiple first electrodes are respectively disposed in the multiple regions, and electrodes located in the same region among the multiple first electrodes are connected.

2. The screen module according to claim 1, characterized in that, The display screen includes: First pixel unit; Second pixel unit; The third pixel unit, the first pixel unit, the second pixel unit and the third pixel unit are arranged side by side in the display area.

3. An electronic device, characterized in that, include: The screen module as described in claim 1 or 2.

4. The electronic device according to claim 3, characterized in that, Also includes: A flexible circuit board, wherein the flexible circuit board is electrically connected to the pressure-sensitive capacitor; A pressure-sensitive control module, which is electrically connected to the flexible circuit board; The main control module is electrically connected to the pressure-sensitive control module.

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