CN113383343A - Electronic device and flexible display device thereof - Google Patents
Electronic device and flexible display device thereof Download PDFInfo
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- CN113383343A CN113383343A CN201980090103.2A CN201980090103A CN113383343A CN 113383343 A CN113383343 A CN 113383343A CN 201980090103 A CN201980090103 A CN 201980090103A CN 113383343 A CN113383343 A CN 113383343A
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Abstract
The utility model provides a flexible display device (30), includes flexible screen (32), sets up in supporting layer (34) at the back of flexible screen (32) and sets up in supporting layer (34) and deviate from fingerprint identification module (36) of flexible screen (32) one side, and supporting layer (34) are used for supporting fingerprint identification module (36), and supporting layer (34) and flexible screen (32) can be passed to the sensing signal of fingerprint identification module (36). Fingerprint identification module (36) do not directly laminate in the back of flexible screen (32), but set up in the back of flexible screen (32) through supporting layer (34), and stress concentration problem can not appear in the edge that flexible screen (32) correspond fingerprint identification module (36), prevents that stress trace shadow from appearing in flexible screen (32).
Description
The present application relates to the field of display devices for electronic devices, and more particularly, to a flexible display device and an electronic device provided with the flexible display 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 flexible screen back is the stereoplasm structure, and behind the back of direct laminating in flexible screen, flexible screen and fingerprint identification module be connected and be in there is stress concentration problem at the edge of fingerprint identification module, when pressing in the front of flexible screen, stress trace shadow appears in the front of flexible screen, reduces user experience.
Disclosure of Invention
The application provides a flexible display device capable of preventing stress trace light shadow from occurring, and an electronic device provided with the flexible display device.
The application provides a kind of sexual display device, including the flexible screen, set up in the supporting layer at the back of the flexible screen and set up in the supporting layer deviates from the fingerprint identification module of one side of the flexible screen, the supporting layer is used for supporting the fingerprint identification module, the induction signal of the fingerprint identification module can pass supporting layer and flexible screen.
The application also provides an electronic device, including casing and flexible display device, the casing include first framework, second framework and connect in first framework with buckle the mechanism between the second framework, flexible display device set up in first framework, second framework reach buckle in the mechanism, nature display device include the flexible screen, set up in the supporting layer at the back of flexible screen and set up in the supporting layer deviates from the fingerprint identification module of flexible screen one side, the supporting layer is used for supporting the fingerprint identification module, the sensing signal of fingerprint identification module can pass supporting layer and flexible screen.
The back of this application electron device's flexible display device's flexible screen is provided with the supporting layer, and the fingerprint identification module sets up in the supporting layer one side of flexible screen dorsad, and the supporting layer is used for supporting the fingerprint identification module. Therefore, the fingerprint identification module is not directly attached to the back of the flexible screen, but is arranged on the back of the flexible screen through the supporting layer, the edge of the flexible screen corresponding to the fingerprint identification module cannot have the problem of stress concentration, and when the front of the flexible screen is pressed, the flexible screen cannot have stress trace light shadow; secondly, the supporting layer still has the rigidity, and the supporting layer has the guard action to the flexible screen to can play the effect of supporting flexible screen and fingerprint identification module.
In order to more clearly illustrate the technical solutions in the embodiments of the present application, 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 application, and it is obvious for those skilled in the art to obtain other 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 schematic perspective view of a flexible display device of the electronic device in fig. 1.
Fig. 3 is a schematic exploded perspective view of the flexible display device in fig. 2.
Fig. 4 is another perspective view of the flexible display device in fig. 3.
Fig. 5 is a cross-sectional view taken along line V-V of fig. 2.
Fig. 6 is a schematic partial cross-sectional structural diagram of a flexible display device of an electronic device in a second embodiment of the present application.
Fig. 7 is a schematic partial sectional structural view of a flexible display device of an electronic device in a third embodiment of the present application.
Fig. 8 is a schematic partial cross-sectional structural view of a flexible display device of an electronic device in a fourth embodiment of the present application.
Fig. 9 is a schematic partial cross-sectional structural view of a flexible display device of an electronic device in a fifth embodiment of the present application.
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.
In the description of the embodiments of the present application, 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 application and simplifying the description, and 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 application.
In the description of the embodiments of the present application, it should be understood that the terms "thickness" and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, and 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 application.
Referring to fig. 1 and fig. 2 together, fig. 1 is a schematic perspective view of an electronic device according to a first embodiment of the present application; fig. 2 is a schematic perspective view of a flexible display device of the electronic device in fig. 1. 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 comprises a flexible screen 32, a support layer 34 arranged on the back of the flexible screen 32 and a fingerprint identification module 36 arranged on one side of the support layer 34, wherein the support layer 34 is used for supporting the fingerprint identification module 36, and an induction signal of the fingerprint identification module 36 can penetrate through the support layer 34 and the flexible screen 32. Specifically, if the fingerprint identification module 36 is an optical fingerprint identification module, the overall light transmittance of the flexible screen 32 and the supporting layer 34 meets the requirement of the optical fingerprint identification module; if fingerprint identification module 36 is the radio frequency fingerprint identification module, then the whole signal penetration rate of flexible screen 32 and supporting layer 34 satisfies the demand of radio frequency fingerprint identification module. The flexible panel 32 includes a bendable region 321 corresponding to the bending mechanism 25 and two non-bendable regions 323 disposed on opposite sides of the bendable region 31, and the two non-bendable regions 323 are connected to the front surfaces of the first frame 21 and the second frame 23, respectively. The fingerprint identification module 36 is disposed between the first frame 21 and the support layer 34 or between the second frame 23 and the support layer 34. In this embodiment, the fingerprint identification module 36 is disposed between the second frame 23 and the supporting layer 34, and the fingerprint identification module 36 is attached to the back of the supporting layer 34.
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 this application the front is the face the same with the exit surface orientation of flexible screen 32, the back is the face opposite with the exit surface orientation of flexible screen 32.
The back of the flexible screen 32 of the flexible display device 30 of the electronic device 100 of the present application is provided with the supporting layer 34, and the fingerprint identification module 36 is arranged on the surface of the supporting layer 34 deviating from the flexible screen 32, i.e. the fingerprint identification module 36 is arranged on the back of the supporting layer 34, and the supporting layer 34 is used for supporting the fingerprint identification module 36. Therefore, the fingerprint identification module 36 is not directly attached to the back of the flexible screen 32, but is arranged on the back of the flexible screen 32 through the supporting layer 34, the problem of stress concentration cannot occur at the edge of the flexible screen 32 corresponding to the fingerprint identification module 36, and when the front of the flexible screen 32 corresponding to the position of the fingerprint identification module 36 receives a press, the position of the flexible screen 32 corresponding to the fingerprint identification module 36 cannot generate stress trace shadow; second, the support layer 34 provides protection to the flexible screen 32. Optionally, the supporting layer 34 may have a certain rigidity, which can function to support the flexible screen 32 and the fingerprint recognition module 36. In addition, fingerprint identification module 36 laminates in the back of supporting layer 34, and supporting layer 34 is range upon range of in the back of flexible screen 32, and then has guaranteed fingerprint identification module 36 and the depth of parallelism of flexible screen 32, has improved 36 inductive signal's of fingerprint identification module receiving and dispatching accuracy, has increased fingerprint collection efficiency and rate of accuracy, has improved user experience.
Referring to fig. 3 to 5, fig. 3 is an exploded perspective view of the flexible display device in fig. 2; FIG. 4 is a perspective view of the flexible display device of FIG. 3 from another perspective; fig. 5 is a cross-sectional view taken along line V-V of fig. 2. The support layer 34 includes a light transmissive region, the light transmissive region being greater than or equal to the fingerprint identification module 36 and the attachment region 342 of the support layer, through which a sensing signal of the fingerprint identification module 36 can pass. The other regions of the support layer 34 except for the light-transmitting region are non-light-transmitting regions. In this embodiment, the support layer 34 is a light-transmitting flexible glass sheet, the thickness of the flexible glass sheet is in a micron order, and the non-light-transmitting layer covers all the regions of the front surface or the back surface of the flexible glass sheet except the bonding region 342. The non-light-transmitting layer may be a non-light-transmitting film attached to the front surface or the back surface of the flexible glass sheet, or may be non-light-transmitting ink, such as black ink, coated on the front surface or the back surface of the flexible glass sheet. The other regions of the flexible glass sheet except the bonding region 342 are all covered with a non-light-pervious layer for shielding light rays away from the front side of the flexible screen 32, so that the contrast ratio of the flexible screen 32 during display is improved, and the display effect of the flexible screen 32 is enhanced. Certainly, the flexible glass sheet may also achieve the opaque effect through other manners, such as doping non-transparent particles at a position inside the flexible glass sheet that avoids the transparent region, or directly manufacturing the transparent region of the flexible glass sheet with a transparent material, manufacturing other regions of the flexible glass sheet with a non-transparent material, and then joining the two into a whole.
Further, the orthographic projection area of the supporting layer 34 on the back of the flexible screen 32 is larger than the orthographic projection area of the fingerprint identification module 36 on the back of the flexible screen 32, and the orthographic projection area of the fingerprint identification module 36 on the back of the flexible screen 32 is located in the orthographic projection area of the supporting layer 34 on the back of the flexible screen 32.
Specifically, the supporting layer 34 may be attached to the entire back surface of the flexible screen 32, that is, the orthographic projection area of the supporting layer 34 on the back surface of the flexible screen 32 coincides with the back surface of the flexible screen 32, and this full coverage manner may avoid a break at two opposite sides of the supporting layer 34, and prevent the flexible screen 32 from being wrinkled or having a poor appearance. The supporting layer 34 may also be only attached to a part of the back surface of the flexible screen 32, for example, only attached to the back surface of the flexible screen 32 facing the first frame 21 or the second frame 23, that is, the orthographic projection area of the supporting layer 34 on the back surface of the flexible screen 32 coincides with the back surface area of the flexible screen 32 facing the first frame 21 or the second frame 23, the fingerprint identification module 36 is disposed between the first frame 21 and the supporting layer 34 or the fingerprint identification module 36 is disposed between the second frame 23 and the supporting layer 34, and this partial covering manner can save the manufacturing cost. In this embodiment, the support layer 34 is attached to the entire back surface of the flexible screen 32.
The fingerprint identification module 36 includes a signal transmitting/receiving surface 360 facing the attaching area 342, and the fingerprint identification module 36 is electrically connected to the main board of the electronic device 100. When using fingerprint identification module 36, fingerprint identification module 36 sends inductive signal to the user finger through signal receiving and dispatching face 360, inductive signal passes laminating area 342 and the flexible screen 32 of supporting layer 34 and reachs the user finger, inductive signal is by user finger reflection back to signal receiving and dispatching face 360 feedback inductive signal, and signal receiving and dispatching face 360 receives the fingerprint signal of following the reflection of user fingerprint to do the comparison through the inductive signal who sends, with the detection user fingerprint information. In an embodiment, the fingerprint identification module 36 is an optical fingerprint identification module, and the attachment area 342 is a light-transmitting area, so that the sensing signal of the fingerprint identification module 36 can pass through the support layer 34 and the flexible screen 32, thereby ensuring that the signal transceiving surface 360 can effectively receive the sensing signal after sending the sensing signal. In other embodiments, the support layer 34 includes a light-transmissive region that is greater than or equal to the attachment region 342 between the fingerprint identification module 36 and the support layer 34, and the sensing signal of the fingerprint identification module 36 passes through the light-transmissive region.
In other embodiments, the fingerprint identification module 36 may also be a radio frequency fingerprint identification module, and is at least located the whole signal penetration rate of the flexible screen 32 and the supporting layer 34 within the range of the attaching area 342 satisfies the requirement of the radio frequency fingerprint identification module. Preferably, the flexible screen 32 and the supporting layer 34 are made of materials that reduce signal loss in a portion or the whole corresponding to the fitting region 342.
In this embodiment, the support layer 34 is a flexible glass sheet. The flexible glass sheet has the advantages of good bending resistance, high strength, high hardness and the like, and has a good supporting effect on the fingerprint identification module 36; secondly, the flexible glass sheet has a low elastic modulus, and can be stretched synchronously or approximately synchronously along with the flexible screen 32 when the flexible display device 30 is bent, so that the flexible display device 30 is prevented from being damaged due to large difference of stretching amplitudes when being bent. In addition, the luminousness of flexible glass piece is high, makes things convenient for penetrating of fingerprint identification module 36's sensing signal.
Preferably, the thickness of the support layer 34 ranges between 5 microns and 80 microns inclusive.
In other embodiments, the supporting layer 34 is made of a transparent polymer material, and specifically, the supporting layer 34 may also be other transparent plates, such as a transparent polycarbonate sheet, an acrylic plate, or a polymer material such as PT.
A glue layer may also be provided between the support layer 34 and the flexible screen 32, which glue layer bonds the support layer 34 and the flexible screen 32. Further, the colloid layer is a transparent colloid layer 35, that is, the front surface of the supporting layer 34 is attached to the back surface of the flexible screen 32 through the transparent colloid layer 35. In particular, the light-transmissive colloid layer 35 may be a light-transmissive optical colloid or optical glue.
Referring to fig. 6, fig. 6 is a schematic partial cross-sectional structural view of a flexible display device of an electronic device according to a second embodiment of the present application. The structure of the second embodiment of the electronic device of the present application is similar to that of the first embodiment, except that:
in the second embodiment, the flexible display device 30a further includes a positioning member 37, the positioning member 37 includes a positioning frame 370 and a connecting sheet 375 disposed around the positioning frame 370, the positioning frame 370 is disposed with a receiving groove 372 for receiving the fingerprint identification module 36, an opening of the receiving groove 372 faces the back of the supporting layer 34, and the connecting sheet 375 is attached to the back of the supporting layer 34 to position the fingerprint identification module 36 on the back of the supporting layer 34. Preferably, the connecting piece 375 is integrally formed with the positioning frame 370.
Specifically, the positioning frame 370 includes a bottom plate 371 and a surrounding plate 373 disposed around the bottom plate 371, and the bottom plate 371 and the surrounding plate 373 together enclose a receiving groove 372. The connecting piece 375 extends from the side of the surrounding plate 373 away from the base plate 371 in a direction perpendicular to the opening of the receiving groove 372. The connecting piece 375 may be an annular piece disposed around the surrounding plate 373, and the connecting piece 375 may also be a plate body disposed on two opposite sides of the surrounding plate 373. In this embodiment, the bottom plate 371 is a rectangular plate, the surrounding plate 373 is a rectangular plate body surrounding the edge of the bottom plate 371, and the side of the connecting piece 375 departing from the bottom plate 371 is flush with the side of the surrounding plate 373 departing from the bottom plate 371, i.e. the front of the connecting piece 375 is coplanar with the side of the surrounding plate 373. When the fingerprint identification module 36 is received in the receiving groove 372, the signal receiving and transmitting surface 360 of the fingerprint identification module 36 is flush with the front surface of the connecting sheet 375.
In this embodiment, the fingerprint identification module 36 is located the back of supporting layer 34 through the locating frame 370, and is specific, and the signal receiving and dispatching face 360 of fingerprint identification module 36 is laminated in the laminating area 342 at the back of supporting layer 34, and connection piece 375 pastes in the back of supporting layer 34 around the laminating area 342 to location fingerprint identification module 36. Because the fingerprint identification module 36 is fixed in the back of supporting layer 34 through setting element 37, fingerprint identification module 36 does not directly bond in the back of flexible screen 32, consequently, stress concentration can not appear in the edge that flexible screen 32 corresponds fingerprint identification module 36 to prevent that stress trace shadow from appearing in flexible screen 32. In addition, laminate in the back of supporting layer 34 through connection piece 375, thereby the laminating area of fingerprint identification module 36 and supporting layer 34 has been widened, and connection piece 375 parallels with signal receiving and dispatching face 360 of fingerprint identification module 36, supporting layer 34 stacks on the back of flexible screen 32, and then guaranteed signal receiving and dispatching face 360 and the depth of parallelism of flexible screen 32, the receiving and dispatching precision of 36 inductive signal of fingerprint identification module has been improved, fingerprint collection efficiency and rate of accuracy have been increased, user experience has been improved.
Referring to fig. 7, fig. 7 is a schematic partial cross-sectional structure view of a flexible display device of an electronic device according to a third embodiment of the present application. The structure of the third embodiment of the electronic device of the present application is similar to that of the second embodiment, except that: the supporting layer 34 is provided with a through hole 344 corresponding to the receiving groove 372, the fingerprint identification module 36 is partially received in the through hole 344, the signal receiving and transmitting surface 360 is coplanar with the front surface of the supporting layer 34, and a gap is formed between the signal receiving and transmitting surface 360 and the front surface of the supporting layer 34.
In the present embodiment, the supporting layer 34 can be a light-transmissive supporting sheet, such as a flexible glass sheet, a polycarbonate sheet, an acrylic sheet, or other high polymer materials; the supporting layer 34 may also be a liquid metal sheet, a thin steel sheet, a memory alloy, a plastic sheet or a rubber sheet, etc., which only needs to have bending resistance and certain hardness. More preferably, the support layer 34 is a liquid metal sheet, which may be an alloy material of one or more of copper, titanium, iron, zirconium, silver, nickel, gallium, gold, antimony, cadmium, zinc, indium, silicon, etc., and the specific metal is preferably selected to obtain other mechanical properties such as lower elastic modulus, hardness, ductility, etc.
The liquid metal is an alloy which is heated to a molten state and then cooled at an ultra-fast cooling speed, so that the alloy crystal lattice is solidified as long as the alloy crystal lattice is arranged in order, and the alloy crystal lattice is in an amorphous state like glass, so the liquid metal is also called amorphous alloy, liquid metal or metal glass. The liquid metal has the characteristics of long-range disorder (short-range order), metastable state, certain physical property isotropy, no definite melting point, glass transition temperature point and the like, has the characteristics of solid state, metal and glass, and can have high strength, high hardness, plasticity, heat conduction, wear resistance and the like under certain conditions.
In this embodiment, the supporting layer 34 is a liquid metal protection layer, and the thickness of the liquid metal protection layer is 5 micrometers to 200 micrometers (inclusive). The liquid metal protective layer may cover the entire back side or a portion of the back side of the flexible screen 32.
The reason why the liquid metal sheet is selected as the supporting layer 34 in this embodiment is that the liquid metal sheet has better wear resistance, and when the liquid metal sheet is attached to the back surface of the flexible screen 32 through the transparent colloid layer 35, the liquid metal sheet can not only support the flexible screen 32 and the fingerprint identification module 36, but also effectively resist the friction generated by the bending mechanism 25, and is not easy to wear. On the other hand, the liquid metal sheet has a lower elastic modulus than common metals (such as steel sheets, aluminum sheets, iron sheets, etc.), and can be directly adhered to the back of the flexible screen 32, and the flexible display device 30 can be stretched synchronously or approximately synchronously along with the flexible screen 32 when being bent, so that the flexible display device 30 is prevented from being damaged due to a large difference in stretching amplitude when being bent. And, compare in the lower material of current elastic modulus, like silica gel, bubble cotton, plastic etc. the intensity of liquid metal is higher, can support flexible screen 32 and fingerprint identification module 36 effectively.
In this embodiment, the fingerprint identification module 36 is positioned on the back side of the supporting layer 34 by the positioning frame 370, the signal transceiving side 360 of the fingerprint identification module 36 is coplanar with the front side of the supporting layer 34, and the signal transceiving side 360 is spaced from the front side of the supporting layer 34. Therefore, the smoothness of the signal transmitting and receiving surface 360 and the front surface of the supporting layer 34 is good, and the edge of the flexible screen 32 corresponding to the fingerprint identification module 36 does not have stress concentration, so that stress traces and light shadows of the flexible screen 32 are prevented; secondly, the connecting sheet 375 is attached to the back surface of the supporting layer 34, so that the connecting sheet 375 is parallel to the signal transmitting and receiving surface 360 of the fingerprint identification module 36, the supporting layer 34 is stacked on the back surface of the flexible screen 32, the parallelism between the signal transmitting and receiving surface 360 and the flexible screen 32 is further ensured, and the transmitting and receiving accuracy of the sensing signal of the fingerprint identification module 36 is improved; in addition, the distance from the signal transceiving surface 360 to the front surface of the flexible screen 32 is reduced compared with the second embodiment, that is, the distance from the signal transceiving surface 360 to the fingerprint of the user is reduced, so that the transceiving distance of the sensing signal of the fingerprint identification module 36 is reduced, and the signal transceiving efficiency of the fingerprint identification module 36 can be improved.
In other embodiments, the through-holes 344 of the support layer 34 may be filled with a light-transmissive rigid material layer having a front surface that is coplanar with the front surface of the support layer 34, and having no gap between the front surface of the rigid material layer and the front surface of the support layer 34.
Referring to fig. 8, fig. 8 is a schematic partial cross-sectional structure view of a flexible display device of an electronic device according to a fourth embodiment of the present application. The structure of the fourth embodiment of the electronic device of the present application is similar to that of the third embodiment, except that: the positioning frame 370 is provided with a threading hole 376.
The supporting layer 34 of the flexible display device 30d in this embodiment is also provided with a through hole 344 corresponding to the receiving groove 372, and one side of the fingerprint identification module 36, which is provided with the signal transceiving surface 360, is received in the through hole 344. Further, the signal transceiving surface 360 is flush with a surface of the supporting layer 34 facing the light emitting surface of the flexible screen 32, that is, the signal transceiving surface 360 is flush with the front surface of the supporting layer 34.
Threading hole 376 is seted up to bottom plate 371 of location frame 370, and threading hole 376 is worn to locate by the cable, and the both ends of cable electric connection respectively in fingerprint identification module 36 and electron device's mainboard, fingerprint identification module 36 with the user's fingerprint of gathering send to the mainboard.
The back of the flexible screen 32 of the display device 30 provided by the present application is provided with a supporting layer 34, and the fingerprint identification module 36 is directly arranged on the back of the supporting layer 34 or arranged on the back of the supporting layer 34 through a positioning member 37. Therefore, the fingerprint identification module 36 is not directly attached to the back of the flexible screen 32, and the edge of the flexible screen 32 corresponding to the fingerprint identification module 36 is not concentrated in stress, so that stress traces and light shadows of the flexible screen 32 are prevented; secondly, the supporting layer 34 still has the rigidity, has the supporting role to flexible screen 32 and fingerprint identification module 36.
In other embodiments, the front surface of the flexible screen 32 is further covered with a transparent, flexible and bendable sheet, which is a flexible glass sheet with a thickness of the order of micrometers. The flexible glass sheet can be bent or flattened along with the flexible screen 32, and the condition that the flexible glass sheet is scratched by an external object and is not easy to wear can be effectively resisted. Secondly, the flexible glass sheet has a low elastic modulus, can be directly adhered to the front surface of the flexible screen 32, and can be synchronously or approximately synchronously stretched along with the flexible screen 32 when the flexible display device 30 is bent, so that the flexible display device 30 is prevented from being damaged due to large difference of stretching amplitude when being bent; in addition, the luminousness of flexible glass piece is high, and is convenient the ejaculate of the light of flexible screen 32, and after long-time the use, flexible glass piece also can not appear discolouring scheduling problem.
Referring to fig. 9, fig. 9 is a schematic partial cross-sectional structure view of a flexible display device of an electronic device according to a fifth embodiment of the present application. The structure of the fifth embodiment of the electronic device of the present application is similar to that of the first embodiment, except that: one side of the supporting plate 34 away from the flexible screen 32 is provided with a light transmission layer 38, and the fingerprint identification module 36 is arranged on one side of the light transmission layer 38 away from the flexible screen 32, that is, the light transmission layer 38 is laminated on the back side of the supporting plate 34. Specifically, the transparent layer 38 is attached to the back surface of the supporting plate 34 through the transparent colloid layer 35, and the fingerprint identification module 36 is attached to the back surface of the transparent layer 38.
Furthermore, the other regions of the transparent layer 38 except the signal transmitting/receiving surface 360 corresponding to the fingerprint identification module 36 are non-transparent regions. In this embodiment, the non-light-transmitting layer covers all the regions of the front surface or the back surface of the light-transmitting layer 38 except the corresponding signal transmitting/receiving surface 360. The non-light-transmitting layer may be a non-light-transmitting film attached to the front surface or the back surface of the light-transmitting layer 38, or may be non-light-transmitting ink, such as black ink, applied to the front surface or the back surface of the light-transmitting layer 38. The non-light-transmitting layer covers all the other regions of the light-transmitting layer 38 except the corresponding signal transmitting and receiving surface 360 to shield the light ray on the side of the front surface away from the flexible screen 32, so that the contrast ratio of the flexible screen 32 during display is improved, and the display effect of the flexible screen 32 is enhanced.
In this embodiment, the supporting layer 34 is attached to the back surface of the flexible screen 32, the light transmission layer 38 is attached to the back surface of the supporting layer 34, the fingerprint identification module 36 is arranged on the surface of the light transmission layer 38 departing from the flexible screen 32, the supporting layer and the light transmission layer 38 both have a supporting effect on the fingerprint identification module 36, the edge of the flexible screen 32 corresponding to the fingerprint identification module 36 does not have the problem of stress concentration, and when the position of the front surface of the flexible screen 32 corresponding to the fingerprint identification module 36 is pressed, the position of the flexible screen 32 corresponding to the fingerprint identification module 36 does not have stress trace shadow; in addition, fingerprint identification module 36 laminates in the back of euphotic layer 38, and euphotic layer 38 stacks up in the back of supporting layer 34, and supporting layer 34 stacks up in the back of flexible screen 32, has further guaranteed fingerprint identification module 36 and the depth of parallelism of flexible screen 32, has improved the receiving and dispatching accuracy of 36 induction signals of fingerprint identification module, has increased fingerprint collection efficiency and rate of accuracy, has improved user experience.
The foregoing is a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations are also regarded as the protection scope of the present application.
Claims (22)
- The flexible display device comprises a flexible screen and is characterized by further comprising a supporting layer and a fingerprint identification module, wherein the supporting layer is arranged on the back face of the flexible screen, the fingerprint identification module is arranged on one side, deviating from the flexible screen, of the supporting layer, the supporting layer is used for supporting the fingerprint identification module, and an induction signal of the fingerprint identification module can penetrate through the supporting layer and the flexible screen.
- The flexible display device of claim 1, wherein the support layer comprises a light-transmitting area, the light-transmitting area is greater than or equal to a bonding area of the fingerprint identification module and the support layer, and a sensing signal of the fingerprint identification module passes through the light-transmitting area.
- The flexible display device of claim 1, wherein the fingerprint identification module is directly attached to the support layer.
- The flexible display device of claim 1, wherein an orthographic projection area of the fingerprint identification module on the back surface of the flexible screen is located within an orthographic projection area of the support layer on the back surface of the flexible screen.
- The flexible display device of claim 1, wherein the support layer is attached to the entire back surface of the flexible screen or the support layer is attached to a portion of the back surface of the flexible screen.
- The flexible display device according to claim 1, further comprising a positioning member, wherein the positioning member comprises a positioning frame and a connecting sheet disposed around the positioning frame, the positioning frame is provided with an accommodating slot for accommodating the fingerprint identification module, and the connecting sheet is attached to the back surface of the supporting layer to position the fingerprint identification module on the supporting layer.
- The flexible display device according to claim 6, wherein the opening of the receiving groove faces the rear surface of the support layer, and the connecting piece extends in a direction perpendicular to the opening of the receiving groove.
- The flexible display device according to claim 6, wherein the supporting layer is provided with a through hole corresponding to the receiving groove, and the fingerprint identification module is opposite to the through hole.
- The flexible display device of claim 8, wherein the fingerprint identification module comprises a signal transceiving surface facing the light emitting surface of the flexible screen, and the signal transceiving surface faces the through hole.
- The flexible display device of claim 8, wherein the signal transceiving surface is located within the through hole.
- The flexible display device of claim 8, wherein the signal transceiving surface is flush with the front surface of the support layer.
- The flexible display device of claim 7, wherein the support layer is at least one of a liquid metal sheet or a thin metal sheet.
- The flexible display device of claim 7, wherein a glue layer is disposed between the support layer and the flexible screen, the glue layer bonding the support layer and the flexible screen.
- The flexible display device of claim 13, wherein the fingerprint identification module comprises a signal transceiving surface facing the light emitting surface of the flexible screen, and the gel layer is provided with a through hole corresponding to the signal transceiving surface.
- The flexible display device of claim 14, wherein the signal transceiving surface is located within the perforation.
- The flexible display device of claim 13, wherein the signal transmitting and receiving surface contacts a back surface of the flexible screen.
- The flexible display device of claim 1, wherein a light-transmissive glue layer is disposed between the support layer and the flexible screen, the light-transmissive glue layer bonding the support layer and the flexible screen.
- The flexible display device according to claim 2, wherein the other regions of the support layer except the light-transmitting region are non-light-transmitting regions.
- The flexible display device of claim 1, wherein the support layer is a light-transmissive flexible glass sheet, a polycarbonate sheet, or an acrylic sheet.
- The flexible display device according to claim 1, wherein a light-transmitting layer is disposed on a side of the support layer facing away from the flexible screen, and the fingerprint identification module is disposed on a side of the light-transmitting layer facing away from the flexible screen.
- The flexible display device according to claim 20, wherein the other regions of the light-transmissive layer except for the signal transmitting/receiving surface corresponding to the fingerprint identification module are non-light-transmissive regions.
- An electronic device comprising a housing and the flexible display device according to any one of claims 1-21, 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.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2019/094943 WO2021003622A1 (en) | 2019-07-05 | 2019-07-05 | Electronic apparatus and flexible display device thereof |
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| Publication Number | Publication Date |
|---|---|
| CN113383343A true CN113383343A (en) | 2021-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201980090103.2A Pending CN113383343A (en) | 2019-07-05 | 2019-07-05 | Electronic device and flexible display device thereof |
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| CN (1) | CN113383343A (en) |
| WO (1) | WO2021003622A1 (en) |
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| CN113257122B (en) * | 2021-04-07 | 2022-03-25 | 合肥维信诺科技有限公司 | Supporting layer group for display module, display module and preparation method of display module |
| CN113096543B (en) * | 2021-04-19 | 2022-11-25 | 云谷（固安）科技有限公司 | Display panel and manufacturing method thereof |
| CN113469031A (en) * | 2021-06-30 | 2021-10-01 | 维沃移动通信有限公司 | Electronic device |
| CN114005362B (en) * | 2021-10-29 | 2023-11-14 | 湖北长江新型显示产业创新中心有限公司 | Display module and display device |
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| WO2021003622A1 (en) | 2021-01-14 |
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