Electronic device

Abstract

The application discloses an electronic device. The electronic device comprises a frame, a first display screen, a second display screen, a circuit board, a light-emitting piece, a light guide piece and a light shielding piece. The first display screen and the second display screen are arranged on two opposite surfaces of the frame. The first display screen comprises a panel and a cover plate arranged in layers. The panel is provided with a hollow part. The circuit board is arranged on the side of the panel away from the cover plate. The light-emitting piece is mounted on the circuit board and faces the hollow part. The light guide piece is arranged on the side of the light-emitting piece facing the first display screen. At least a part of the light guide piece extends into the hollow part and is arranged in a spaced manner with the cover plate. The light shielding piece covers the surface of the light guide piece facing the panel. At the surface of the light guide piece extending into the hollow part facing the cover plate, a part of the light shielding piece protrudes in the first direction and abuts against the light guide part and the cover plate.

Description

Technical Field

[0001] This application relates to the field of electronic equipment technology, and in particular to an electronic device. Background Technology

[0002] With the rapid development of foldable electronic devices, more and more of them are featuring secondary displays on the back of the casing to display information and provide simple user operations when folded. To enhance the user experience and maximize the display area of ​​the secondary displays, an increasing number of foldable electronic devices are incorporating them as full-screen displays.

[0003] In the process of achieving a full-screen setup on the secondary display, the camera and flash will be located in the area of ​​the secondary display. The strong flash during the photo taking process will accelerate the aging of the secondary display panel and affect the overall lifespan of the foldable electronic device. Summary of the Invention

[0004] The electronic device provided in this application can effectively reduce the aging effect of the strong light flicker of the flash on the secondary display screen, and ensure the service life of the secondary display screen and the electronic device as a whole.

[0005] This application provides an electronic device, wherein the electronic device includes:

[0006] The frame, the first display screen and the second display screen are disposed on opposite sides of the frame. The first display screen includes a panel and a cover plate stacked along a first direction. The panel has a hollow portion that runs through the first direction.

[0007] Circuit boards are disposed at intervals along the first direction on the side of the panel away from the cover plate;

[0008] A light-emitting element is mounted on the circuit board and faces the cutout portion;

[0009] A light guide is provided on the side of the light-emitting element facing the first display screen, and at least a portion of the light guide extends into the hollow portion and is spaced apart from the cover plate;

[0010] A light-shielding member covers the surface of the light guide member facing the panel. At the portion of the light guide member extending to the hollowed-out portion facing the surface of the cover plate, a portion of the light-shielding member protrudes from the light guide member along the first direction and abuts against the cover plate.

[0011] The electronic device provided in this application transmits light emitted by the light-emitting element to the cover plate along the first direction through the light guide. By providing a light-shielding element to cover the surface of the light guide facing the panel, the direct transmission of light from the light guide to the panel can be effectively reduced. At the same time, by making a part of the light-shielding element protrude along the first direction from the part of the light guide extending to the hollow portion and abutting against the surface of the cover plate, the light can be further blocked at the gap between the light guide and the cover plate. This can further reduce the light exposure to the panel to the greatest extent, thereby slowing down the aging of the panel due to light exposure and ensuring the service life of the panel, the first display screen, and the electronic device as a whole. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 Exploded view of the electronic device provided in this application;

[0014] Figure 2 Another exploded view of the electronic device provided in this application;

[0015] Figure 3 A partial cross-sectional view of the electronic device provided in this application;

[0016] Figure 4 Exploded view of the light guide and light shield of the electronic device provided in this application;

[0017] Figure 5 A schematic diagram of the combined structure of the light guide and the light shield of the electronic device provided in this application;

[0018] Figure 6 A cross-sectional structural schematic diagram of the light guide and light shield of the electronic device provided in this application;

[0019] Figure 7 A partial structural schematic diagram of the cover plate of the display screen of the electronic device provided in this application;

[0020] Figure 8 A schematic diagram of the structure of the display screen of the electronic device provided in this application.

[0021] Explanation of icon numbers:

[0022] A. Frame; 1. Display screen; 11. Panel; 111. Cutout section; 12. Cover plate; 121. Light-emitting section; 1211. Transparent area; 1212. First ink area; 1213. Second ink area; 122. Through hole; 2. Circuit board; 3. Light-emitting component; 4. Light guide component; 41. First light guide section; 42. Second light guide section; 5. Light-shielding component; 51. First light-shielding section; 52. Second light-shielding section; 6. Buffer component; 61. Receiving section; 7. Reinforcing sheet; 71. Perforation; 8. First adhesive layer; 9. Second adhesive layer; X. First direction. Detailed Implementation

[0023] The embodiments of this application 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 this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0024] With the rapid development of foldable electronic devices, more and more of them are featuring secondary displays on the back of the casing to display information and provide simple user operations when folded. To enhance the user experience and maximize the display area of ​​the secondary displays, an increasing number of foldable electronic devices are incorporating them as full-screen displays.

[0025] In the process of setting up a full-screen secondary display, the camera and flash will be located in the area of ​​the secondary display. The strong flash during the photo taking will accelerate the aging of the secondary display panel. At the same time, since the internal space of foldable electronic devices is limited, an opening needs to be made on the panel when setting up the flash, which will affect the structural reliability of the foldable electronic device and affect the overall lifespan of the foldable electronic device.

[0026] like Figures 1 to 3 As shown, this application provides an electronic device, which includes a frame A, a first display screen 1, a second display screen (not shown in the figure), a circuit board 2, a light-emitting element 3, a light guide element 4, and a light-shielding element 5.

[0027] Both the first display screen 1 and the second display screen are used for image display. The second display screen is the main display screen of the electronic device, and the first display screen 1 is the secondary display screen of the electronic device. The first display screen 1 and the second display screen are located on opposite sides of the frame A.

[0028] The first display screen 1 includes a panel 11 and a cover plate 12 stacked along a first direction X. The panel 11 is used to display images, such as an OLED panel or an AMOLED panel. The cover plate 12 is a transparent cover plate, such as a UTG glass cover plate, and is used to protect the panel 11.

[0029] The panel 11 has a hollow portion 111 that runs through the first direction X. The hollow portion 111 is used to allow light emitted by the light-emitting element 3 to pass through, so as to realize the function of a flashlight or a flashlight.

[0030] Circuit board 2 is disposed at intervals along the first direction X on the side of panel 11 away from cover plate 12. Circuit board 2 is used to realize the electrical connection of electronic components such as light-emitting element 3 and first display screen 1. Circuit board 2 can be a printed circuit board 2.

[0031] The light-emitting element 3 is mounted on the circuit board 2 and faces the cutout portion 111. The light emitted by the light-emitting element 3 can pass through the cutout portion 111 and be emitted through the cover plate 12. The light-emitting element 3 can be an electronic component with light-emitting function, such as a light-emitting diode.

[0032] The light guide 4 is located on the side of the light-emitting element 3 facing the first display screen 1. The light guide 4 is used to guide, homogenize and transmit the light emitted by the light-emitting element 3. The light guide 4 is made of a material to ensure its light guiding effect.

[0033] At least a portion of the light guide 4 extends into the cutout portion 111 to form a uniform and continuous conduction path between the circuit board 2 and the cover plate 12. The light guide 4 and the cover plate 12 are spaced apart to prevent the light guide 4 from contacting each other and causing wear to the cover plate 12.

[0034] The light-shielding element 5 is made of an opaque material. The light-shielding element 5 covers the surface of the light guide 4 facing the panel 11, so that light can only be emitted from the light guide 4 toward the surface of the cover plate 12, effectively preventing light from shining onto the panel 11, fundamentally reducing the situation where light shines on the panel 11 and accelerates the aging of the panel 11.

[0035] At the portion of the light guide 4 extending to the hollowed-out portion 111 facing the surface of the cover plate 12, a portion of the light shield 5 protrudes from the light guide 4 along the first direction X and abuts against the cover plate 12; that is, a portion of the light shield 5 blocks light at the periphery of the gap formed between the light guide 4 and the cover plate 12 to prevent light from shining from the light guide 4 onto the cover plate 12 and then onto the panel 11 through the gap, thereby minimizing the possibility of light shining onto the panel 11. The portion of the light shield 5 protruding from the side surface of the light guide 4 facing the cover plate 12 can maintain the gap between the light guide 4 and the cover plate 12, preventing the light guide 4 and the cover plate 12 from contacting each other and abrading the cover plate 12 under external force.

[0036] like Figures 4 to 6 As shown, the electronic device provided in this application includes a light guide 4 comprising a first light guide portion 41 and a second light guide portion 42. The first light guide portion 41 is located between the circuit board 2 and the panel 11, and the second light guide portion 42 is formed by protruding from the first light guide portion 41 toward the first display screen 1. The first light guide portion 41 and the second light guide portion 42 are integrally formed to ensure the continuity of light propagation inside and to avoid the connection gap between the two from causing adverse effects on light transmission.

[0037] A portion of the second light guide 42 extends into the hollow portion 111, and the end face of the second light guide 42 away from the first light guide 41 is spaced apart from the cover plate 12 to prevent the second light guide 42 from contacting the cover plate 12 and causing wear to the cover plate 12.

[0038] like Figures 4 to 6 As shown, in the electronic device provided by this application, the second light guide portion 42 is a columnar structure extending along the first direction X, specifically a cylindrical structure or a prismatic structure, wherein the cylindrical structure has a smooth and continuous outer peripheral surface, which has the advantages of being easy to process and conducive to light transmission.

[0039] Along the first direction X, the surface of the area of ​​the first light guide 41 not covered by the second light guide 42 facing the panel 11 is an annular surface, that is, the second light guide 42 has a disc-shaped structure. Optionally, the axis of the first light guide 41 extending along the first direction X coincides with the axis of the second light guide 42 extending along the first direction X, so as to ensure the uniformity of the overall structure of the light guide 4. After assembly, the second light guide 42 can provide uniform support for the first light guide 41, which is beneficial to optimizing the overall stress of the light guide 4.

[0040] like Figures 4 to 6 As shown, the electronic device provided in this application includes a light-shielding member 5 comprising a first light-shielding portion 51 and a second light-shielding portion 52. The first light-shielding portion 51 at least covers the side surface of the first light guide portion 41 that is not covered by the second light guide portion 42 along the first direction X facing the panel 11. Furthermore, along the first direction X, the side surface of the first light-shielding portion 51 facing away from the first light guide portion 41 is bonded and fixed to the panel 11 by a first adhesive layer 8. Specifically, the first light-shielding portion 51 has a ring-shaped structure, and the second light guide portion 52 penetrates the first light guide portion 41. A light-shielding part 51 is provided. The inner periphery of the first light-shielding part 51 abuts against the peripheral surface of the second light guide part 42. The outer periphery of the first light-shielding part 51 extends to the periphery of the first light guide part 41. In the projection along the first direction X, the projection of the first light-shielding part 51 falls entirely into the projection of the first light guide part 41. The outer periphery of the first light-shielding part 51 can have a certain distance from the periphery of the first light guide part 41, so that the periphery of the first light guide part 41 protrudes slightly beyond the outer periphery of the first light-shielding part 51.

[0041] The second light-shielding part 52 is fixedly connected to the first light-shielding part 51. The second light-shielding part 52 has a sleeve structure and covers the peripheral surface of the second light guide part 42. Along the first direction X, a part of the second light-shielding part 52 protrudes from the side surface of the second light guide part 42 facing the cover plate 12 and abuts against the cover plate 12 to maintain the gap between the second light guide part 42 and the cover plate 12.

[0042] like Figure 7 As shown, in the electronic device provided in this application, a light-emitting portion 121 is formed at a position corresponding to the cutout portion 111 along the first direction X. The light-emitting portion 121 can be understood as a light-emitting screen printing hole. The light-emitting portion 121 includes a transparent area 1211 and an ink area, with the ink area surrounding the transparent area 1211.

[0043] like Figure 7 As shown, the electronic device provided in this application includes an ink region comprising a first ink region 1212 and a second ink region 1213; a transparent region 1211 is circular, and the first ink region 1212 is annular and surrounds the transparent region 1211; the second ink region 1213 is also annular and surrounds the first ink region 1212.

[0044] Optionally, the second ink area 1213 is a black ink area, and the color of the first ink area 1212 is the same as or different from the color of the second ink area 1213. Specifically, the color of the first ink area 1212 can be yellow or other colors, which need to match the color of the inner frame of the electronic device to improve the appearance of the light-emitting part 121.

[0045] The electronic device provided in this application includes a light-shielding member 5, which is an integrally injection-molded thermoplastic elastomer with good elasticity and thermoplasticity. It can deform plastically according to the force applied to the electronic device to ensure its contact effect with the cover plate 12 and the reliability of its connection with the light guide member 4.

[0046] During the injection molding process of the light-shielding component 5, photochromic ink is added, meaning that the light-shielding component 5 is made of photochromic material. When exposed to light with an intensity lower than a predetermined threshold, the color of the light-shielding component 5 is the same as the color of the first ink area 1212, thereby enhancing the aesthetic appearance of the electronic device. When exposed to light with an intensity equal to or higher than the predetermined threshold, the light-shielding component 5 becomes transparent, allowing light to pass through when the user needs to use strong light, thus enabling it to have a light-transmitting function.

[0047] The phenomenon of colored inks becoming transparent is actually a change in the molecular structure within the ink material. When ink materials are not exposed to strong light, their molecular structure exhibits a colored state due to their strong absorption of specific wavelengths of light. However, when these material molecules are exposed to strong visible light, their molecular structure changes, and electrons in the molecules are excited to higher energy states, leading to a change in molecular structure. This change alters their light absorption, causing the material to change from colored to transparent. For example, some materials have molecules in a stable conformational state when not exposed to light, which gives them a colored appearance. However, when these materials are exposed to light, their molecular conformation changes, resulting in a change in their absorption characteristics. This change can cause the material to become transparent. This phenomenon of colored inks becoming transparent plays an important role in some applications, such as the manufacture of smart windows, optical switches, and optical memory.

[0048] The photochromic ink used in this application can be a yellow ink, sensitive to visible light. However, the photochromic ink can only change color when the intensity of visible light reaches a predetermined threshold. Because the light-emitting element 3 is very close to the light-shielding element 5, the light intensity generated by the strong current in the light-emitting element 3 is very high. When this intensity exceeds the predetermined threshold, it will trigger the photochromic ink to change from colored to colorless. External natural light or artificial light, due to insufficient intensity, will not trigger the photochromic ink to change from colored to colorless if it does not exceed the predetermined threshold.

[0049] Optionally, the light-shielding component 5 and the light guide component 4 can be integrally injection molded to ensure the reliability of their connection.

[0050] like Figures 1 to 3 As shown, the electronic device provided in this application includes a buffer 6, which is disposed between the circuit board 2 and the light guide 4. The buffer 6 has good elasticity and can generate elastic deformation along the first direction X to provide buffering between the light guide 4 and the circuit board 2 under stress.

[0051] The buffer 6 has a recessed receiving portion 61. Along the first direction X, the receiving portion 61 corresponds to the hollow portion 111. The light-emitting element 3 is disposed in the receiving portion 61. The buffer 6 can protect the light-emitting element 3 disposed in the receiving portion 61 to prevent the light-emitting element 3 from being squeezed and damaged when the distance between the light guide 4 and the circuit board 2 changes.

[0052] Optionally, in the electronic device provided in this application, the buffer 6 is foam, and the receiving part 61 is a hole structure recessed on the side surface of the foam facing the first display screen 1. The hole structure is a through hole or a blind hole, and the depth of the hole structure can be adjusted according to actual needs.

[0053] Optionally, in the electronic device provided by this application, the buffer 6 is installed in a compressed state between the circuit board 2 and the light guide 4, and the compression of the buffer 6 is greater than or equal to 50%, so as to apply force to the light guide 4 and the circuit board 2 and provide effective support between them, preventing the light guide 4 and the circuit board 2 from getting too close under stress and damaging the light-emitting element 3.

[0054] like Figures 1 to 3 and Figure 8 As shown, in the electronic device provided in this application, a reinforcing sheet 7 is attached to the surface of the panel 11 facing the circuit board 2. The reinforcing sheet 7 is bonded and fixed to the panel 11 by a second adhesive layer 9. A through hole 71 is provided on the reinforcing sheet 7, and the through hole 71 corresponds to the hollow part 111 along the first direction X. By setting the reinforcing sheet 7, the panel 11 can be reinforced at the periphery of the hollow part 111, thereby improving the structural strength of the panel 11 and compensating for the reduction in structural strength of the panel 11 caused by the hollow part 111, thus ensuring the overall structural reliability of the first display screen 1.

[0055] Optionally, the reinforcing sheet 7 is a sheet structure made of stainless steel or other metal or non-metal materials.

[0056] The electronic device provided in this application further includes a camera module, which is mounted on the circuit board 2 and spaced apart from the light-emitting element 3; a through hole 122 is provided on the cover plate 12, which is spaced apart from the light-emitting part 121, and the camera module passes through the panel 11 along the first direction X, and a part of the camera module is embedded in the through hole 122.

[0057] The light-emitting component 3 can be used as a flashlight or as a flash unit in conjunction with a camera module.

[0058] In the electronic device provided by this application, the light emitted by the light-emitting element 3 is transmitted to the cover plate 12 along the first direction X through the light guide 4. By providing the light shield 5 to cover the surface of the light guide 4 facing the panel 11, the direct transmission of light from the light guide 4 to the panel 11 can be effectively reduced. At the same time, by making a part of the light shield 5 protrude along the first direction X from the part of the light guide 4 extending to the hollow part 111 facing the surface of the cover plate 12 and abutting against the cover plate 12, the light can be further blocked at the gap between the light guide 4 and the cover plate 12. This can further reduce the light exposure to the panel 11 to the greatest extent, thereby slowing down the aging of the panel 11 due to light exposure and ensuring the service life of the panel 11, the display screen 1, and the electronic device as a whole.

[0059] 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 application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0060] In the description of this application, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "middle", "rear", "left", "right", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not 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 application.

[0061] In the description of this application, it should be noted that, unless otherwise expressly 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0062] The above description is merely a specific implementation of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the protection scope of this application.

Claims

1. An electronic device, comprising: The electronic device includes: The frame, the first display screen and the second display screen are disposed on opposite sides of the frame. The first display screen includes a panel and a cover plate stacked along a first direction. The panel has a hollow portion that runs through the first direction. Circuit boards are disposed at intervals along the first direction on the side of the panel away from the cover plate; A light-emitting element is mounted on the circuit board and faces the cutout portion; A light guide is provided on the side of the light-emitting element facing the first display screen, and at least a portion of the light guide extends into the hollow portion and is spaced apart from the cover plate; A light-shielding member covers the surface of the light guide member facing the panel, and at the part of the light guide member extending to the hollow portion facing the cover plate, a portion of the light-shielding member protrudes from the light guide member along the first direction and abuts against the cover plate; The light-shielding component is made of a photochromic material, and when exposed to light with an intensity equal to or higher than a predetermined threshold, the light-shielding component changes from colored to transparent.

2. The electronic device of claim 1, wherein, The light guide includes a first light guide portion and a second light guide portion. The first light guide portion is located between the circuit board and the panel. The second light guide portion is formed by protruding from the first light guide portion toward the first display screen. A portion of the second light guide portion extends into the hollow portion, and the end face of the second light guide portion away from the first light guide portion is spaced apart from the cover plate.

3. The electronic device of claim 2, wherein, The second light guide is a columnar structure extending along the first direction, and along the first direction, the surface of the area of ​​the first light guide not covered by the second light guide facing the panel is an annular surface.

4. The electronic device of claim 3, wherein, The light-shielding member includes a first light-shielding part and a second light-shielding part. The first light-shielding part covers at least one side surface of the first light guide part that is not covered by the second light guide part along the first direction and faces the panel. The second light-shielding part is connected to the first light-shielding part and covers the peripheral surface of the second light guide part. Along the first direction, a portion of the second light-shielding portion protrudes from the side surface of the second light-guiding portion facing the cover plate and abuts against the cover plate.

5. The electronic device of claim 4, wherein, Along the first direction, a light-emitting portion is formed at the position of the cover plate corresponding to the hollow portion; the light-emitting portion includes a transparent area and an ink area, and the ink area is arranged around the transparent area.

6. The electronic device according to claim 5, characterized in that, The ink area includes a first ink area and a second ink area; the first ink area surrounds the transparent area; the second ink area surrounds the first ink area; the second ink area is a black ink area, and the color of the first ink area is different from the color of the second ink area.

7. The electronic device according to claim 6, characterized in that, The light-shielding element is made of photochromic material. When irradiated by light with an intensity lower than a predetermined threshold, the color of the light-shielding element is the same as the color of the first ink area. When irradiated by light with an intensity equal to or higher than the predetermined threshold, the light-shielding element is transparent.

8. The electronic device according to claim 7, characterized in that, The light-shielding component is a thermoplastic elastomer.

9. The electronic device according to claim 1, characterized in that, The electronic device includes a buffer component disposed between the circuit board and the light guide component. The buffer component has a recessed receiving portion, which corresponds to the hollow portion along the first direction. The light-emitting component is disposed in the receiving portion.

10. The electronic device according to claim 9, characterized in that, The buffer is foam, and the receiving part is a hole structure recessed on the side surface of the foam facing the first display screen, and the hole structure is a through hole or a blind hole. The buffer is installed in a compressed state between the circuit board and the light guide, and the compression of the buffer is greater than or equal to 50%.

11. The electronic device according to claim 1, characterized in that, A reinforcing sheet is attached to the side surface of the panel facing the circuit board. The reinforcing sheet has a through hole, and the through hole corresponds to the hollow part along the first direction.

12. The electronic device according to claim 5, characterized in that, The electronic device further includes a camera module, which is mounted on the circuit board and spaced apart from the light-emitting element; a through hole is provided on the cover plate along the first direction, the through hole is spaced apart from the light-emitting part, the camera module penetrates the panel along the first direction, and a part of the camera module is embedded in the through hole.

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