CN113383290A - Electronic device - Google Patents
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- CN113383290A CN113383290A CN201980090082.4A CN201980090082A CN113383290A CN 113383290 A CN113383290 A CN 113383290A CN 201980090082 A CN201980090082 A CN 201980090082A CN 113383290 A CN113383290 A CN 113383290A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
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Abstract
The utility model provides an electronic device (100), include casing (20) and set up flexible display device (30) on casing (20), flexible display device (30) include flexible screen (31) and set up fingerprint identification module (35) in casing (20), casing (20) are including the smooth front of face towards flexible screen (31), the back laminating of flexible screen (31) is in the front of casing (20), the front of casing (20) sets up first printing opacity region (260), fingerprint identification module (35) set up corresponding to first printing opacity region (260), the induction signal of fingerprint identification module (35) can pass first printing opacity region (260) and flexible screen (31) of casing (20).
Description
The present application relates to the field of display devices for electronic devices, and more particularly, to an electronic device.
Present flexible screen electron device, if folding flexible cell-phone, in order to increase electron device's screen to account for than, generally with fingerprint identification module and flexible screen coincide mutually and set up, the fingerprint is knitted the back that the module splices in flexible screen promptly, accounts for than in order to improve the screen. However, the fingerprint identification module at the back of flexible screen is the stereoplasm structure, and after direct laminating in the back of flexible screen, flexible screen is in with being connected of fingerprint identification module there is stress concentration problem at the edge of fingerprint identification module, and the planarization of flexible module laminating receives the influence of fingerprint identification module great, when pressing down in the front of flexible screen, stress trace and shadow appear in the front of flexible screen easily, and have the risk that damages the flexible screen and press fatigue and shorten flexible screen life-span.
Disclosure of Invention
The application provides an electronic device that planarization preferred of laminating can prevent that stress trace shadow from appearing.
The application provides a pair of electronic device, include the casing and set up the flexible display device on the casing, flexible display device include flexible screen and set up in fingerprint identification module in the casing, the casing includes the face court the smooth front of flexible screen, the back of flexible screen laminate in the front of casing, the front of casing sets up first printing opacity region, the fingerprint identification module corresponding to first printing opacity region sets up, the sensing signal of fingerprint identification module can pass the casing first printing opacity region and flexible screen.
This application electron device includes casing and flexible display device, flexible display device including the joint in the casing on the flexible screen and set up in fingerprint identification module in the casing, the back of flexible screen smoothly laminate in the front of casing, the front of casing sets up first printing opacity region, the fingerprint identification module corresponding to first printing opacity region sets up, the sensing signal of fingerprint identification module can pass the first printing opacity region of casing reaches flexible screen. Because the fingerprint identification module does not directly laminate in the back of flexible screen, but set up in the casing, consequently, the flexible screen corresponds the stress concentration problem can not appear in the edge of fingerprint identification module, works as the front of flexible screen corresponds when the position of fingerprint identification module is received and is pressed, the flexible screen corresponds the stress trace shadow can not appear in the position of fingerprint identification module.
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described 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 that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic perspective view of an electronic device in a first embodiment of the present application.
Fig. 2 is a sectional view taken along line II-II in fig. 1.
Fig. 3 is an enlarged view of the portion III in fig. 2.
Fig. 4 to 6 are schematic diagrams of the electronic device according to the first embodiment of the present application at different stages of installation of the fingerprint identification module.
Fig. 7 is a schematic view of a usage state of the electronic device in the first embodiment of the present application.
Fig. 8 is a schematic cross-sectional structure diagram of an electronic device in a second embodiment of the present application.
Fig. 9 is a schematic cross-sectional structure diagram of an electronic device in a third embodiment of the present application.
Fig. 10 is a schematic cross-sectional structure diagram of an electronic device in a fourth embodiment of the present application.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not imply or indicate that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Referring to fig. 1 to 3, fig. 1 is a schematic perspective view of an electronic device according to a first embodiment of the present application; FIG. 2 is a cross-sectional view taken along line II-II of FIG. 1; fig. 3 is an enlarged view of the portion III in fig. 2. The electronic device 100 in the first embodiment of the present application includes a housing 20 and a flexible display device 30 disposed on the housing 20. The housing 20 includes a first frame 21, a second frame 23, and a bending mechanism 25 connected between the first frame 21 and the second frame 23. The flexible display device 30 includes a flexible screen 31 attached to the first frame 21, the second frame 23 and the bending mechanism 25, and a fingerprint identification module 35 disposed on the housing 20. The flexible screen 31 has a bendable region 301 corresponding to the bending mechanism 25 and two non-bendable regions 304 disposed on opposite sides of the bendable region 301, and the two non-bendable regions 304 are respectively attached to the front surfaces of the first frame 21 and the second frame 23. The fingerprint identification module 35 may be disposed on a side of the first frame 21 away from the flexible screen 31 or on a side of the second frame 23 away from the flexible screen 31. In this embodiment, the fingerprint identification module 35 is disposed on one side of the first frame 231 departing from the flexible screen 31. Casing 20 is including facing towards the smooth front of flexible screen 31, and the back laminating of flexible screen 31 is in casing 20's front, and casing 20's front is provided with first printing opacity regional 260, and fingerprint identification module 35 is corresponding to the regional 260 setting of first printing opacity, and the induction signal of fingerprint identification module 35 can pass casing 20's first printing opacity regional 260 and flexible screen 31. Specifically, if the fingerprint identification module 35 is an optical fingerprint identification module, the light transmittance of the first light-transmitting area of the flexible screen 31 and the housing 20 corresponding to the fingerprint identification module 35 area satisfies the requirement of the optical fingerprint identification module; if the fingerprint identification module 35 is a radio frequency fingerprint identification module, the first light-transmitting area is a penetration area, and the portion of the flexible screen 31 corresponding to the penetration area and the portion of the shell 20 corresponding to the penetration area are made of materials for reducing signal loss, so that the signal of the radio frequency fingerprint identification module penetrates through the flexible screen. In this embodiment, fingerprint identification module 35 is optical fingerprint identification module, casing 20 and flexible screen 31 can be seen through to fingerprint identification module 35's light.
In this embodiment, the electronic device 100 is a mobile phone. It is understood that in other embodiments, the electronic device 100 may be, but is not limited to, a tablet computer, a display, a liquid crystal panel, an OLED panel, a television, a smart watch, a vehicle-mounted display, or any other product with a display touch function. In the present application, the front face refers to a face facing the same direction as the light emitting face of the flexible screen 31, and the back face refers to a face facing the opposite direction to the light emitting face of the flexible screen 31.
The utility model provides an electronic device 100's flexible display device 30's fingerprint identification module 35 sets up in the one side that first framework 21 deviates from flexible screen 31 or sets up in the one side that second framework 23 deviates from flexible screen 31, the back of flexible screen 31 is smoothly laminated in the front of first framework 21 or second framework 23, the front of casing 20 sets up first printing opacity region 260, fingerprint identification module 35 is corresponding to the setting of first printing opacity region 260, the induction signal of fingerprint identification module 35 can pass first printing opacity region 260 and the flexible screen 31 of casing 20. Consequently, fingerprint identification module 35 does not directly laminate in the back of flexible screen 31, but sets up in casing 20, and the problem of stress concentration can not appear at the edge that flexible screen 31 corresponds fingerprint identification module 35, and when the position that the front of flexible screen 31 corresponds fingerprint identification module 35 received and pressed, stress trace light and shadow can not appear in the position that flexible screen 31 corresponds fingerprint identification module 35. In addition, the back of flexible screen 31 is smoothly laminated in the front of casing 20, and then has guaranteed fingerprint identification module 35 and flexible screen 31's depth of parallelism, has improved fingerprint identification module 35 sensing signal's receiving and dispatching precision, has increased fingerprint collection efficiency and rate of accuracy, has improved user experience.
A metal middle frame 26 is provided in the first frame 21 and the second frame 23, and the flexible display device 30 is provided in the metal middle frame 26. A main board 212, a plurality of electronic components arranged on the main board 212, and a battery arranged in the first frame 21 are arranged in the first frame 21. Fingerprint identification module 35 electric connection is in mainboard 212, and is a plurality of electronic components can be the chip that generates heat such as CPU chip, power management chip, the integrated circuit chip that charges that sets up on mainboard 212. The front surface 210 of the first frame 21 faces away from the main board 212, and the front surface 210 is attached to the back surface of the flexible screen 31.
As shown in fig. 3, the flexible screen 31 is provided with a second transparent area 305 corresponding to the first transparent area 260, and the sensing signal of the fingerprint identification module 35 can pass through the first transparent area 260 and the second transparent area 305. Specifically, the sensing signal of the fingerprint recognition module 35 can pass through the first light-transmitting area 260 and the second light-transmitting area 305.
The front surface 210 of the casing 20 is provided with a through hole 261 corresponding to the first light-transmitting area 260, a light-transmitting material layer 263 is arranged in the through hole 261, the front surface of the light-transmitting material layer 263 is coplanar with the front surface 210 of the casing 20, the fingerprint identification module 35 is arranged on the back surface of the light-transmitting material layer 263, and the sensing signal of the fingerprint identification module 35 can pass through the light-transmitting material layer 263. Specifically, a through hole 261 is formed in the front surface 210 of the first frame 21, a transparent material layer 263 is filled in the through hole 261, the front surface of the transparent material layer 263 is coplanar with the front surface 210 of the first frame 21, and a first transparent area 260 is formed at the intersection of the transparent material layer 263 and the front surface 210 of the first frame 21; the back surface of the flexible screen 31 is attached to the front surface 210 of the housing 20, and the flexible screen 31 is provided with a second light-transmitting area 305 corresponding to the first light-transmitting area 260. The area of each layer of the flexible screen 31 corresponding to the second light-transmitting area 305 is set as a light-transmitting area, so that the sensing signal of the fingerprint identification module 35 can pass through each layer of the flexible screen 31.
In this embodiment, the projection area of the second light-transmitting region 305 is greater than or equal to the projection area of the first light-transmitting region 260, that is, the orthographic projection area of the first light-transmitting region 260 on the front surface 210 of the first frame 21 is located in the orthographic projection area of the second light-transmitting region 305 on the front surface 210 of the first frame 21. The through hole 261 is a stepped hole including a small hole close to the front face 210 and a large hole far from the front face 210; the through hole 261 is provided as a stepped hole to enable the light transmissive material layer 263 to be more firmly connected to the first frame body 21.
There is no gap at the joint of the transparent material layer 263 and the housing 20, specifically, there is no gap at the joint of the first frame 21 and the transparent material layer 263. Therefore, when the flexible panel 31 is attached to the front surface 210 of the first frame 21, the parallelism between the flexible panel 31 and the front surface 210 of the first frame 21 is high, and the stress trace shadow can be prevented from occurring at the position of the flexible panel 31 corresponding to the transparent material layer 263.
In this embodiment, the transparent material layer 263 and the housing 20 are integrally formed, that is, the transparent material layer 263 and the first frame 21 are formed by in-mold molding or two-color injection molding. The transparent material layer 263 can be made of, but not limited to, PC plastic, plastic material, or other optical resin material such as rubber. The front surface of the transparent material layer 263 is processed by a surface treatment so that the front surface of the transparent material layer 263 has no offset with the front surface 210 of the housing 20. Specifically, the transparent material layer 263 and the housing 20 are coplanar with each other by precision mold molding control or secondary processing such as local polishing, so that the front surface 210 of the first frame 21 and the front surface of the transparent material layer 263 are not broken, and the transparent material layer 263 is supported in the through hole 261, thereby meeting the smoothness of the flexible screen 31 after being attached to the housing 20, reducing stress marks and appearance abnormalities of the attached and rolled through hole 261 caused by filling the transparent material layer 263 in the through hole 261 of the flexible screen 31 and the first frame 21, and improving the touch feeling and the anti-pressing capability of the transparent material layer 263 in the through hole 261 corresponding to the flexible screen 31.
The mounting groove 264 of intercommunication through-hole 261 is seted up to the back of casing 20, and fingerprint identification module 35 is accomodate in mounting groove 264, and fingerprint identification module 35 does not occupy casing 20's inner space, makes things convenient for the range overall arrangement of other inside components of casing 20. In this embodiment, the mounting groove 264 is formed on the back surface of the first frame 21 corresponding to the through hole 261, the fingerprint identification module 35 is completely received in the mounting groove 264, and the signal transceiving surface 350 of the fingerprint identification module 35 is attached to the back surface of the transparent material layer 263.
In other embodiments, a gap may be disposed between the fingerprint identification module 35 and the back surface of the transparent material layer 263.
The opening area of the through hole 261 is smaller than that of the mounting groove 264, and specifically, the orthographic projection of the through hole 261 on the front surface 210 of the housing 20 is located in the region of the orthographic projection of the mounting groove 264 on the front surface 210 of the housing 20. Because the opening area of the through hole 261 is smaller than the opening area of the mounting groove 264, the housing 20 forms a mounting platform 266 at the intersection of the through hole 261 and the mounting groove 264, and the fingerprint identification module 35 is connected to the mounting platform 266.
In this embodiment, the fingerprint identification module 35 is attached to the back of the mounting table 266 through the glue, and transparent optical glue can be arranged between the fingerprint identification module 35 and the back of the transparent material layer 263, so that the connection between the fingerprint identification module 35 and the first frame body 26 is firmer.
In other embodiments, the opening area of the through hole 261 may also be equal to or greater than the opening area of the mounting groove 264, i.e., the orthographic projection area of the through hole 261 on the front surface 210 of the housing 20 coincides with the orthographic projection area of the mounting groove 264 on the front surface 210 of the housing 20, or the orthographic projection of the mounting groove 264 on the front surface 210 of the housing 20 is located within the orthographic projection area of the through hole 261 on the front surface 210 of the housing 20. Be connected through the colloid between the internal perisporium of fingerprint identification module 35 and mounting groove 264, can set up transparent optical cement between the back of fingerprint identification module 35 and translucent material layer 263.
In other embodiments, the fingerprint identification module 35 can also be detachably clamped or screwed in the mounting groove 264, so that the fingerprint identification module 35 can be conveniently replaced.
Referring to fig. 4 to 6 together, fig. 4 to 6 are schematic views illustrating an installation process of a fingerprint identification module of an electronic device 100 according to a first embodiment of the present application. Firstly, a through hole 261 and a mounting groove 264 are formed in the shell 20, specifically, the through hole 261 is formed in the front surface 210 of the first frame body 21, the mounting groove 264 is formed in the back surface of the first frame body 21 corresponding to the through hole 261, the intersection of the through hole 261 and the mounting groove 264 is positioned in the first frame body 21, and the opening area of the mounting groove 264 is larger than that of the through hole 261, so that a mounting table 266 is formed at the intersection of the mounting groove 264 and the through hole 261 by the first frame body 21; forming a light-transmitting material in the through hole 261 of the first frame body 21 through a precision mold to form the light-transmitting material layer 263, wherein the light-transmitting material layer 263 is fixed in the through hole 261 and the front surface of the light-transmitting material layer 263 is coplanar with the front surface 210 of the first frame body 21, so as to facilitate the lamination of the flexible screen 31; preferably, the back surface of the layer 263 of light transmissive material is coplanar with the back surface of the mounting platform 266. Install fingerprint identification module 35 in mounting groove 264, it is specific, fingerprint identification module 35 passes through the back that transparent optical cement connects in mount table 266 to make fingerprint identification module 35 fix and accomodate in mounting groove 264, the back that the signal of fingerprint identification module 35 was received and is sent out face 350 laminating printing opacity material layer 263; the main board 212, the battery and the back board are mounted on the back of the first frame 21, the fingerprint identification module 35 is electrically connected to the main board 212, and specifically, the fingerprint identification module 35 is connected to the main board 212 through a wire; the back surface of the flexible panel 31 may be attached to the front surface 210 of the first housing 21 through a transparent optical adhesive layer.
In other embodiments, the fingerprint identification module 35 can be directly welded to the main board 212, and during installation, the fingerprint identification module 35 is inserted into the installation groove 264.
As shown in fig. 3, the flexible panel 31 includes a panel body 310, a first heat dissipation layer 311 stacked on a front surface of the panel body 310, and a cover plate 319 stacked on a front surface of the first heat dissipation layer 311. The first heat dissipation layer 311 is made of a coating material with high infrared emissivity, the infrared emissivity of the first heat dissipation layer 311 is greater than or equal to 0.95, and at least the area of the first heat dissipation layer 311 corresponding to the through hole 261 is set as a light transmission area. In this embodiment, the cover plate 319 is a flexible and bendable sheet that is transparent to light and infrared light, and specifically, the cover plate 319 is ultra-thin glass, and the thickness of the ultra-thin glass cover plate is in a micron range, and specifically, the thickness of the ultra-thin glass cover plate 319 is in a range of 5 micrometers to 80 micrometers.
The ultrathin glass cover plate has the advantages of good bending resistance, high strength, high hardness and the like, and when the ultrathin glass cover plate is attached to the front surface of the flexible screen 31, the ultrathin glass cover plate can not only bend or flatten along with the flexible screen 31, but also can effectively resist scratches of an external object on the ultrathin glass cover plate, and the abrasion condition is not easy to occur. Secondly, the elastic modulus of the ultra-thin cover glass is low, and the ultra-thin cover glass can be directly adhered to the front surface of the flexible screen 31, and can be synchronously or approximately synchronously stretched along with the flexible screen 31 when the electronic device 100 is bent, so that the situation that the flexible screen 31 is damaged due to large stretching amplitude difference when the flexible screen 31 is bent is avoided. On the other hand, the luminousness of ultra-thin glass cover plate is high, and is convenient the normal work of penetrating of the light of flexible screen 31 and fingerprint identification module 35, and after long-time the use, the problem such as discolour can not appear yet to ultra-thin glass cover plate.
In the application, the first heat dissipation layer 311 is arranged on the front surface of the screen body 310 with a relatively high calorific value, and the first heat dissipation layer 311 is made of a coating material with a high infrared emissivity, so that the heat dissipation efficiency of the surface of the screen body 310 is improved by arranging the first heat dissipation layer 311 made of the coating material with the high infrared emissivity on the front surface of the screen body 310.
The first heat dissipation layer 311 may be a transparent graphene coating layer or a transparent graphene thin film layer. In this embodiment, the first heat dissipation layer 311 is a transparent graphene coating layer coated on the back surface of the cover plate 319, and the graphene coating layer covers the whole back surface of the cover plate 319 to form a uniform graphene coating layer. Specifically, the graphene coating is plated on the back surface of the cover plate 319 by vacuum plating or evaporation. Because the graphene coating is a coating with high infrared emissivity, and the surface structure of the graphene coating is a crystal structure, the efficiency of converting heat into infrared rays by the graphene coating is high. When the electronic device 100 operates, heat generated by the panel body 310 can be converted into infrared rays through the first heat dissipation layer 311, and is uniformly dissipated to the outside through the cover plate 319.
The first heat dissipation layer 311 is adhered to the front surface of the panel 310, and specifically, the cover plate 319 is adhered to the front surface of the panel 310 through the transparent optical adhesive layer 312. The optical adhesive layer 312 can transmit light and infrared rays and has a strong heat-conducting property. The heat generated by the screen body 310 is conducted to the first heat dissipation layer 31 through the optical adhesive layer 312, and the first heat dissipation layer 311 converts the heat into infrared rays, which are uniformly dissipated to the outside through the cover plate 319.
In other embodiments, the first heat dissipation layer 311 may be a graphene thin film layer made transparent, which is laminated between the panel body 310 and the cover plate 319, and the graphene thin film layer covers the whole front surface of the panel body 310.
In other embodiments, the first heat dissipation layer 311 may also be a transparent graphene coating layer coated on the front surface of the panel 310.
In other embodiments, the first heat dissipation layer 311 may be a transparent carbon nanotube coating, i.e., the first heat dissipation layer 311 is a transparent carbon nanotube coating applied on the back surface of the cover 319, and the carbon nanotube coating covers the entire back surface of the cover 319 to form a uniform carbon nanotube coating. Because the carbon nanotube coating is a coating with high thermal conductivity, the carbon nanotube coating has high efficiency of converting heat into infrared rays, and can convert the heat generated by the screen body 310 into infrared rays to be emitted through the cover plate 319, so that the heat dissipation efficiency of the screen body 310 is improved.
In other embodiments, the transparent first heat dissipation layer 311 is coated on both the front and back surfaces of the cover plate 319.
In other embodiments, the cover 319 may also be a flexible transparent cover, such as a transparent PET film layer, PI film layer, etc
As shown in fig. 3, the panel 310 includes a light emitting device layer 313, a polarizer layer 314 stacked on the front surface of the light emitting device layer 313, a touch module layer 315 attached to the front surface of the polarizer layer 314 through a transparent optical adhesive layer 312, a supporting film layer 316 attached to the back surface of the light emitting device layer 313 through the transparent optical adhesive layer 312, and a second heat dissipation layer 318 attached to the back surface of the supporting film layer 316 through an ultra-thin transparent double-sided adhesive layer 317. The light emitting device layer 313, the polarizer layer 314, the touch module layer 315, the support film layer 316, and the second heat dissipation layer 318 are disposed as transparent regions corresponding to at least the first transparent region 260, and the transparent regions of the layers form the second transparent region 305.
In this embodiment, the cover plate 319 is attached to the front surface of the touch module layer 315 through the transparent optical adhesive layer 312; the polarizer layer 314, the optical adhesive layer 312 and the touch module layer 315 are transparent and can be penetrated by infrared rays, and the light emitting device layer 313, the supporting film layer 316 and the double-sided adhesive layer 317 are transparent and can be penetrated by infrared rays corresponding to the region of the first light penetrating region 260. The support film 316 may be made of PET or PI.
The material of the second heat dissipation layer 318 may be the same as or different from the material of the first heat dissipation layer 311, and the second heat dissipation layer 318 and the first heat dissipation layer 311 are transparent at least in the region corresponding to the first light-transmitting region 260. The first heat dissipation layer 311, the cover plate 319, the light emitting device layer 313, the polarizer layer 314, the touch module layer 315, the support film layer 316, the two-sided adhesive layer 317, the second heat dissipation layer 318, and the light-transmitting areas of the optical adhesive layers 312 corresponding to the first light-transmitting areas 260 form the second light-transmitting area 305.
In this embodiment, the material of the second heat dissipation layer 318 is the same as the material of the first heat dissipation layer 311, that is, the second heat dissipation layer 318 is also made of a transparent coating material with high ir emissivity, and the ir emissivity of the coating of the second heat dissipation layer 318 is greater than or equal to 0.95. Specifically, the second heat dissipation layer 318 may be a transparent graphene coating layer, or may be a transparent graphene thin film layer. The second heat dissipation layer 318 is used for converting heat conducted from the panel 310 into infrared rays, and the infrared rays are emitted directly or through the housing 20.
The back surface of the panel 310 is laminated on the front surface 210 of the first frame 21 through the transparent optical adhesive layer 312, that is, the back surface of the panel 310 is laminated on the front surface of the housing 20 through the transparent optical adhesive layer 312.
As shown in fig. 2, a protection sheet 252 is further disposed between the bending mechanism 25 and the flexible screen 31. The protection sheet 252 is disposed on the front surface of the bending mechanism 25, and specifically, the protection sheet 252 is fixed to the front surface of the bending mechanism 25 by welding, clamping or gluing. The protective sheet 252 serves to protect the flexible screen 31 and prevent the rear surface of the flexible screen 31 from being damaged. The protective sheet 252 is a flexible support sheet, and the protective sheet 252 may be a thin metal sheet such as a copper foil, a liquid metal sheet, a memory alloy sheet, a plastic sheet, or a sheet made of other suitable materials. In this embodiment, the protective sheet 252 is a liquid metal sheet.
When the flexible screen 31 works, heat generated by the working of the light-emitting device layer 313 is conducted to the first heat dissipation layer 311 through the polarizer layer 314, the optical adhesive layer 312 and the touch module layer 315, the first heat dissipation layer 311 converts the heat into infrared rays, and the infrared rays pass through the cover plate 319 for radiation heat dissipation, so that the heat dissipation efficiency of the flexible screen 31 is improved. Meanwhile, the second heat dissipation layer 318 transfers the heat of the flexible panel 31 to the metal middle frame 26, and the heat is dissipated through the metal middle frame 26. Heat generated from the electronic components inside the case 20 is conducted to the metal bezel 26, and the metal bezel 26 radiates the heat to the outside.
Referring to fig. 7, when the fingerprint identification module 35 of the electronic device 100 is used, the fingerprint identification module 35 sends a sensing signal to the user's finger through the signal transceiving surface 350, the sensing signal passes through the first transparent area 260 of the transparent material layer 263 and the second transparent area 305 of the flexible screen 31 to reach the user's finger, the sensing signal is reflected by the user's finger and then feeds back the sensing signal to the signal transceiving surface 350, and the signal transceiving surface 350 receives the fingerprint signal reflected from the user's fingerprint and compares the fingerprint signal with the sent sensing signal to detect the user's fingerprint information. In an embodiment, the fingerprint identification module 35 is an optical fingerprint identification module, and the first transparent area 260 and the second transparent area 305 are both transparent, so that the sensing signal of the fingerprint identification module 35 can pass through the transparent material layer 263 and the flexible screen 31, thereby ensuring that the sensing signal can be effectively received by the signal transceiving surface 350 after the sensing signal is sent out.
In other embodiments, the fingerprint recognition module 35 can also be a radio frequency fingerprint recognition module, and the overall signal transmittance of the transparent material layer 263 at least located in the range of the first transparent area 260 and the flexible screen 31 at least located in the range of the second transparent area 305 meets the requirement of the radio frequency fingerprint recognition module. Preferably, the flexible screen 31 and the transparent material layer 263 are made of materials with reduced signal loss in a part or an entire corresponding to the second transparent area 305 and the first transparent area 260.
Referring to fig. 8, fig. 8 is a schematic cross-sectional structure diagram of an electronic device in a second embodiment of the present application, which is similar in structure to the first embodiment, except that: the housing 20 is provided with at least one positioning ring 265 on the inner peripheral wall of the through hole 261, and the positioning ring 265 is used for positioning the transparent material layer 263.
In this embodiment, at least one positioning ring 265 is protruded from the middle of the inner peripheral wall of the through hole 261 of the first frame 21 along the circumferential direction, the transparent material layer 263 is integrally formed and fixed with the first frame 21, and the positioning ring 265 firmly fixes the transparent material layer 263 and the first frame 21.
In other embodiments, the first frame 21 is provided with two or more than two positioning rings 265 spaced from each other along the circumferential direction on the inner circumferential wall of the through hole 261.
In other embodiments, the inner peripheral wall of the through hole 261 of the first frame 21 is roughened or provided with an anti-slip pattern, so that the transparent material layer 263 and the first frame 21 are fixed more firmly.
Referring to fig. 9, fig. 9 is a schematic cross-sectional structure view of an electronic device according to a third embodiment of the present application, which is similar in structure to the first embodiment, except that: the casing 20 has at least one positioning groove 267 formed in the inner peripheral wall of the through hole 261, and the transparent material is filled into the positioning groove 267 to position the transparent material layer 263.
In this embodiment, the first frame body 21 is provided with at least one positioning groove 267 in the middle of the inner peripheral wall of the through hole 261 along the circumferential direction, and when the transparent material layer 263 and the first frame body 21 are integrally formed and fixed, the transparent material is filled into the positioning groove 267, so that the transparent material layer 263 and the first frame body 21 are firmly fixed.
In other embodiments, the first frame 21 is provided with two or more than two positioning rings 265 spaced from each other along the circumferential direction on the inner circumferential wall of the through hole 261.
Referring to fig. 10, fig. 10 is a schematic cross-sectional structure view of an electronic device according to a fourth embodiment of the present application, where the structure of the fourth embodiment of the present application is similar to that of the first embodiment, except that: the inner peripheral wall of the mounting groove 264 is provided with a plurality of elastic positioning members 268, and the plurality of positioning members 268 are used for positioning the fingerprint identification module 35 in the mounting groove 264.
In this embodiment, the positioning members 268 are disposed on the inner peripheral wall of the mounting groove 264 along the circumferential direction of the mounting groove 264. Specifically, the positioning member 268 is an elastic clamping column, and a plurality of the clamping columns are uniformly arranged on the inner circumferential wall of the mounting groove 264 along the circumferential direction. The peripheral wall of fingerprint identification module 35 is provided with location strip 352 along circumference. When installing fingerprint identification module 35, have in the one side of signal receiving and dispatching face 350 with fingerprint identification module 35 inserts mounting groove 264 to support and push away setting element 268 and make it take place elastic deformation, cross the location strip 352 back when setting element 268, setting element 268 elasticity resets and joint location strip 352 deviates from one side of printing opacity material layer 263, thereby makes fingerprint identification module 35 be fixed in mounting groove 264. At this time, the signal transmitting/receiving surface 350 of the fingerprint identification module 35 corresponds to the first light-transmitting area 260.
When fingerprint identification module 35 is taken off to needs, drawing fingerprint identification module 35 to the one side of keeping away from printing opacity material layer 263, locating element 268 takes place elastic deformation, breaks away from the butt to fingerprint identification module 35 until locating element 268, and locating element 268 elasticity resets, takes out fingerprint identification module 35, easy to assemble or dismantle fingerprint identification module 35.
A circuit board, a battery, an electronic component, or the like may be disposed in the second frame 23, heat generated when the circuit board, the battery, or the electronic component operates may be transferred to the metal middle frame 26, and the metal middle frame 26 emits the heat.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (20)
- The utility model provides an electronic device, including the casing and set up in the flexible display device of casing, its characterized in that, flexible display device include flexible screen and set up in fingerprint identification module in the casing, the casing includes the face towards the smooth front of flexible screen, the back of flexible screen laminate in the front of casing, the front of casing sets up first printing opacity region, the fingerprint identification module corresponding to first printing opacity region sets up, the sensing signal of fingerprint identification module can pass the casing first printing opacity region and flexible screen.
- The electronic device of claim 1, wherein the flexible screen is provided with a second transparent area corresponding to the first transparent area, and the sensing signal of the fingerprint identification module can pass through the first transparent area and the second transparent area.
- The electronic device according to claim 2, wherein an area of the second light-transmitting region is greater than or equal to an area of the first light-transmitting region.
- The electronic device according to claim 2, wherein a through hole is formed in the front surface of the housing corresponding to the first light-transmitting region, a light-transmitting material layer is disposed in the through hole, and the front surface of the light-transmitting material layer is coplanar with the front surface of the housing.
- The electronic device of claim 4, wherein a junction of the layer of light-transmissive material and the housing is free of gaps.
- The electronic device of claim 4, wherein the layer of light transmissive material is integrally formed with the housing.
- The electronic device of claim 4, wherein the signal transceiving surface of the fingerprint identification module is attached to the back surface of the light-transmitting material layer.
- The electronic device of claim 7, wherein a transparent optical adhesive is disposed between the fingerprint identification module and the back surface of the light-transmissive material layer.
- The electronic device of claim 4, wherein a mounting groove communicated with the through hole is formed in the back surface of the housing, and the fingerprint identification module is received in the mounting groove.
- The electronic device of claim 9, wherein an orthographic projection of the through hole on the front face of the housing is located within an orthographic projection area of the mounting slot on the front face of the housing.
- The electronic device of claim 9, wherein the housing forms a mounting platform at an intersection of the through hole and the mounting slot, and the fingerprint identification module is connected to the mounting platform.
- The electronic device according to claim 11, wherein a plurality of elastic positioning members are disposed on an inner peripheral wall of the mounting groove, and the plurality of positioning members are used for positioning the fingerprint recognition module in the mounting groove.
- The electronic device of claim 4, wherein the through-hole is a stepped hole.
- The electronic device according to claim 4, wherein the inner peripheral wall of the through hole is provided with at least one positioning ring for positioning the light-transmitting material layer.
- The electronic device according to claim 4, wherein the inner peripheral wall of the through hole is provided with at least one circle of positioning grooves, and the light-transmitting material is filled into the positioning grooves to position the light-transmitting material layer.
- The electronic device according to claim 4, wherein a front surface of the light-transmissive material layer is free from a break from the front surface of the housing by a surface treatment.
- An electronic device according to claim 4, wherein the inner peripheral wall of the through hole is roughened or provided with an anti-slip pattern.
- The electronic device of claim 9, wherein a main board is disposed in the housing, the fingerprint identification module is disposed on the main board, and the fingerprint identification module is inserted into the mounting groove.
- The electronic device of claim 1, wherein the housing comprises a first frame, a second frame, and a bending mechanism connected between the first frame and the second frame, and the flexible display device is disposed on the first frame, the second frame, and the bending mechanism.
- The electronic device according to claim 18, wherein a main board is disposed in the first frame, and the fingerprint identification module is electrically connected to the main board.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2019/096492 WO2021007836A1 (en) | 2019-07-18 | 2019-07-18 | Electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113383290A true CN113383290A (en) | 2021-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201980090082.4A Pending CN113383290A (en) | 2019-07-18 | 2019-07-18 | Electronic device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113383290A (en) |
| WO (1) | WO2021007836A1 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106993072A (en) * | 2017-05-12 | 2017-07-28 | 广东欧珀移动通信有限公司 | Housing and mobile terminal |
| CN208781246U (en) * | 2019-03-20 | 2019-04-23 | 深圳市汇顶科技股份有限公司 | The device and electronic equipment of fingerprint recognition |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140133715A1 (en) * | 2012-11-15 | 2014-05-15 | Identity Validation Products, Llc | Display screen with integrated user biometric sensing and verification system |
| CN107256067B (en) * | 2017-05-12 | 2021-03-09 | Oppo广东移动通信有限公司 | Display device and mobile terminal |
| CN107528940B (en) * | 2017-08-08 | 2020-01-10 | Oppo广东移动通信有限公司 | Folding mobile terminal |
| CN109684958B (en) * | 2018-12-14 | 2020-12-25 | 武汉华星光电半导体显示技术有限公司 | Fingerprint identification flexible display screen panel |
-
2019
- 2019-07-18 WO PCT/CN2019/096492 patent/WO2021007836A1/en active Application Filing
- 2019-07-18 CN CN201980090082.4A patent/CN113383290A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106993072A (en) * | 2017-05-12 | 2017-07-28 | 广东欧珀移动通信有限公司 | Housing and mobile terminal |
| CN208781246U (en) * | 2019-03-20 | 2019-04-23 | 深圳市汇顶科技股份有限公司 | The device and electronic equipment of fingerprint recognition |
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|---|---|
| WO2021007836A1 (en) | 2021-01-21 |
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Application publication date: 20210910 |