CN113539061B - Induction component and electronic device - Google Patents
Induction component and electronic device Download PDFInfo
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- CN113539061B CN113539061B CN202010315364.4A CN202010315364A CN113539061B CN 113539061 B CN113539061 B CN 113539061B CN 202010315364 A CN202010315364 A CN 202010315364A CN 113539061 B CN113539061 B CN 113539061B
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
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- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
Abstract
The application discloses an induction component and an electronic device. The sensing assembly comprises a display module, a sensing module, an auxiliary material layer and a transparent adhesive layer. The display module assembly comprises a display surface and a bottom surface which are opposite. The sensing module is arranged on one side of the bottom surface, and a gap exists between the sensing module and the bottom surface. The auxiliary material layer is arranged on one side of the bottom surface, the auxiliary material layer is provided with a light-passing port, and the sensing module receives light passing through the light-passing port. The transparent glue layer is arranged between the sensing module and the display module and used for filling the gap. According to the sensing assembly and the electronic device, the gap between the sensing module and the display module is filled by the transparent adhesive layer, light reflection at the display module-air interface and the air-sensing module interface is avoided, and the shadow degree of the sensing module is reduced. Even when the display module is irradiated by light, the user can not see the shadow generated by the sensing module, and the viewing experience of the user is improved.
Description
Technical Field
The present disclosure relates to consumer electronics, and more particularly to an induction assembly and an electronic device.
Background
The optical fingerprint technology under the screen is becoming popular, and most mobile phones are provided with an optical fingerprint identification module arranged under the screen so as to realize the fingerprint identification function under the screen. When the optical fingerprint recognition module is placed under the screen, a window corresponding to the optical fingerprint recognition module is usually required to be formed in an auxiliary material layer below the display screen, so that light reflected by the finger can be received by the optical fingerprint recognition module. However, the window opening manner can make the position of the screen corresponding to the optical fingerprint identification module show an obvious shadow when the screen is irradiated by light, and the visual experience of a user is affected.
Disclosure of Invention
The embodiment of the application provides an induction component and an electronic device.
The sensing assembly of the embodiment of the application comprises a display module, a sensing module, an auxiliary material layer and a transparent adhesive layer. The display module comprises a display surface and a bottom surface which are opposite. The induction module is arranged on one side of the bottom surface, and a gap exists between the induction module and the bottom surface. The auxiliary material layer is arranged on one side of the bottom surface, the auxiliary material layer is provided with a light-passing port, and the sensing module receives light rays passing through the light-passing port. The transparent adhesive layer is arranged between the sensing module and the display module and used for filling the gap.
The sensing assembly of the embodiment of the application comprises a display module, a sensing module and an auxiliary material layer. The display module comprises a display surface and a bottom surface which are opposite. The induction module is arranged on one side of the bottom surface, and a gap exists between the induction module and the bottom surface. The auxiliary material layer is arranged on one side of the bottom surface, the auxiliary material layer is provided with a light-passing port, the sensing module receives light rays passing through the light-passing port, and the color number of the color of the part of the auxiliary material layer, which is close to one side of the display module, is positioned between the cold ash 5C and 11C.
The electronic device of the embodiment of the application comprises a shell and an induction component. The sensing assembly is coupled to the housing. The sensing assembly comprises a display module, a sensing module, an auxiliary material layer and a transparent adhesive layer. The display module comprises a display surface and a bottom surface which are opposite. The induction module is arranged on one side of the bottom surface, and a gap exists between the induction module and the bottom surface. The auxiliary material layer is arranged on one side of the bottom surface, the auxiliary material layer is provided with a light-passing port, and the sensing module receives light rays passing through the light-passing port. The transparent adhesive layer is arranged between the sensing module and the display module and used for filling the gap.
The electronic device of the embodiment of the application comprises a shell and an induction component. The sensing assembly is coupled to the housing. The sensing assembly comprises a display module, a sensing module and an auxiliary material layer. The display module comprises a display surface and a bottom surface which are opposite. The induction module is arranged on one side of the bottom surface, and a gap exists between the induction module and the bottom surface. The auxiliary material layer is arranged on one side of the bottom surface, the auxiliary material layer is provided with a light-passing port, the sensing module receives light rays passing through the light-passing port, and the color number of the color of the part of the auxiliary material layer, which is close to one side of the display module, is positioned between the cold ash 5C and 11C.
According to the sensing assembly and the electronic device, the gap between the sensing module and the display module is filled by the transparent adhesive layer, light reflection at the display module-air interface and the air-sensing module interface is avoided, and the shadow degree of the sensing module is reduced. Even when the display module is irradiated by light, the user can not see the shadow generated by the sensing module, and the viewing experience of the user is improved.
Additional aspects and advantages of embodiments of the application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic structural view of an inductive component of certain embodiments of the present application;
FIG. 2 is a schematic structural view of an inductive component of certain embodiments of the present application;
FIG. 3 is a schematic structural view of an inductive component of certain embodiments of the present application;
FIG. 4 is a schematic structural view of an inductive component of certain embodiments of the present application;
FIG. 5 is a schematic structural view of an inductive component of certain embodiments of the present application;
FIG. 6 is a schematic structural view of an inductive component of certain embodiments of the present application;
fig. 7 is a schematic structural diagram of an electronic device according to some embodiments of the present application.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the embodiments of the present application and are not to be construed as limiting the embodiments of the present application.
In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
Referring to fig. 1, an induction component 100 is provided in an embodiment of the present application. The sensing assembly 100 includes a display module 10, a sensing module 20, an auxiliary material layer 30 and a transparent adhesive layer 50. The display module 10 includes a display surface 101 and a bottom surface 102 opposite to each other. The sensing module 20 is disposed on a side of the bottom surface 102, and a gap exists between the sensing module and the bottom surface 102. The auxiliary material layer 30 is disposed on the side of the bottom surface 102. The auxiliary material layer 30 is provided with a light-transmitting port 301. The sensing module 20 receives the light passing through the light-passing port 301. The transparent adhesive layer 50 is disposed between the sensing module 20 and the display module 10 for filling the gap.
The sensing assembly 100 of the embodiment of the application fills the gap between the sensing module 20 and the display module 10 by using the transparent adhesive layer 50, so that light reflection at the interface between the display module 10 and air and the interface between the air and the sensing module 20 is avoided, and the shadow degree of the sensing module 20 is reduced. Even when the display module 10 is irradiated by light, the user can not see the shadow generated by the sensing module 20, which is beneficial to improving the viewing experience of the user.
Referring to fig. 3, an induction component 100 is provided in an embodiment of the present application. The sensing assembly 100 includes a display module 10, a sensing module 20, and an auxiliary material layer 30. The display module 10 includes a display surface 101 and a bottom surface 102 opposite to each other. The sensing module 20 is disposed on a side of the bottom surface 102, and a gap exists between the sensing module and the bottom surface 102. The auxiliary material layer 30 is disposed on the side of the bottom surface 102. The auxiliary material layer 30 is provided with a light-transmitting port 301. The sensing module 20 receives the light passing through the light-passing port 301. The color number of the color of the portion of the auxiliary material layer 30 near the side of the display module 10 is located between the cold ashes 5C-11C.
The sensing component 100 of the present embodiment changes the color of the portion of the auxiliary material layer 30 near the side of the display module 10, so that the shadow degree of the auxiliary material layer 20 is consistent with the shadow degree of the sensing module 20. When the user views the display module 10, the shadow of the auxiliary material layer 20 and the shadow of the sensing module 20 are simultaneously seen, and because the shadow degrees of the two are consistent, when the user views the display module 10, the user sees a complete shadow area completely matched with the size of the display surface 101, at this time, the user cannot find the existence of the shadow, and the viewing experience is better.
In the related art, the sensing assembly may include a display module, a sensing module, and an auxiliary material layer. The sensing module and the auxiliary material layer are arranged on one side of the bottom surface of the display module, a gap exists between the sensing module and the display module, and air exists in the gap. The auxiliary material layer is offered and is led to the light mouth, and response module can receive the light that passes through the light mouth. Because the light has larger light reflection quantity at the two interfaces of the display module, the air and the air-sensing module, the shadow degree of the sensing module is higher, when a user views the display module, the area corresponding to the auxiliary material layer is brighter, and the area corresponding to the sensing module is darker, so that the user can see the shadow area corresponding to the sensing module from the display module, and the appearance is worse.
For the reasons described above, the present application provides various exemplary sensing assemblies 100 shown in fig. 1-6.
Fig. 1 is a schematic structural diagram of an induction component 100 according to an embodiment. As shown in fig. 1, the sensing assembly 100 includes a display module 10, a sensing module 20, an auxiliary material layer 30, a transparent adhesive layer 50 and a sealing member 40.
The display module 10 includes a display surface 101 and a bottom surface 102 opposite to each other. The display surface 101 faces the user, and the display surface 101 is used for displaying images. The display module 10 may be a flexible screen. As shown in fig. 1, the display module 10 includes a Cover Glass (CG) 11, an Optically Clear Adhesive (OCA) 12, a Polarizer (POL) 13, a light-emitting layer (Panel) 14, and a substrate (U-film) 15. Along the direction of the display surface 101 pointing to the bottom surface 102, the cover glass 11, the optically transparent adhesive 12, the polarizer 13, the light-emitting layer 14 and the substrate 15 are sequentially arranged.
The sensing module 20 is disposed on a side of the bottom surface 102, and a gap exists between the sensing module and the bottom surface 102. The sensing module 20 may be any light sensing device that may be placed under a screen, such as an optical fingerprint recognition module, a proximity sensor, a light sensor, an imaging module, etc., and is not limited herein. The sensing module 20 includes a sensing element 21 and a circuit board 22. The circuit board 22 includes a first surface 221 and a second surface 222 opposite to each other, and the sensing element 21 is disposed on the first surface 221 of the circuit board 20 and located between the display module 10 and the circuit board 22. The first projection of the sensing element 21 onto the circuit board 22 is located in the first surface 221 of the circuit board 22, so that the portion of the circuit board 22 not in contact with the sensing element 21 can be used to route the wiring for connecting the sensing element 21 to the circuit board 22, thereby electrically connecting the sensing element 21 to the circuit board 22.
The auxiliary material layer 30 is disposed on the side of the bottom surface 102. The auxiliary material layer 30 is provided with a light-transmitting port 301. The sensing module 20 receives the light passing through the light-passing port 301. The area of the second projection of the light through opening 301 on the circuit board 22 is greater than or equal to the area of the first projection of the sensing element 21 on the circuit board 22 and is smaller than the area of the first surface 221 of the circuit board 22. Specifically, the auxiliary material layer 30 includes a double-sided adhesive layer (EMBO) 31, a FOAM layer (FOAM) 32, a graphite layer 33, and a copper foil layer (Cu) 34. Along the light emitting direction of the display module 10, the copper foil layer 34, the graphite layer 33, the foam adhesive layer 32 and the double-sided adhesive layer 31 are sequentially arranged, and the double-sided adhesive layer 31 is located between the display module 10 and the foam adhesive layer 32. The double-sided adhesive layer 31 may be used to adhere other auxiliary materials to the bottom surface 102 of the display module 10, and may also be used to protect the bottom surface 102 of the display module 10 from abrasion. The foam gel layer 32 can play a role of buffering protection. The graphite layer 33 may be used for heat dissipation of the display module 10. The copper foil layer 34 may be used to shield interference between the display module 10 and the rest of the electronic devices. The light through opening 301 penetrates the double-sided adhesive layer 31 and the foam adhesive layer 32. The area of the second projection of the light through opening 301 on the circuit board 22 is greater than or equal to the area of the first projection of the sensing element 21 on the circuit board 22 and is smaller than the area of the first surface 221 of the circuit board 22. Thus, the cross-sectional area of the light-transmitting opening 301 is larger than the area of the first surface 211 of the sensing element 21, and the double-sided adhesive layer 31 and the foam adhesive layer 32 do not shade the sensing element 21, so that the sensing element 21 can receive more light. The graphite layer 33 and the copper foil layer 34 in the auxiliary material layer 30 are provided with avoiding openings 302, and the light through openings 301 also penetrate through the graphite layer 33 and the copper foil layer 34 in the auxiliary material layer 30. The space formed by the graphite layer 33 and the copper foil layer 34 is formed by the dodging port 302 and the light passing port 301. The relief ports 302 are distributed around the sensing die set 20. The area of the third projection of relief opening 302 onto circuit board 22 is greater than or equal to the area of first surface 221 of circuit board 22. In this way, the graphite layer 33 and the copper foil layer 32 do not block the sensing element 21 and the space above the circuit board 22, and other elements having a certain height can be arranged at the position of the circuit board 22 which is not contacted with the sensing element 21.
The transparent adhesive layer 50 is disposed between the sensing module 20 and the display module 10 for filling the gap between the sensing module 20 and the display module 10. The side of the light-transmitting opening 301 contacts with the transparent adhesive layer 50, that is, the side of the double-sided adhesive layer 31 and the side of the bubble adhesive layer 32 near the light-transmitting opening 301 contacts with the transparent adhesive layer 50. Specifically, the transparent adhesive layer 50 includes two opposite sides, wherein one side contacts the first side 211 of the sensing element 21, and the other side contacts the bottom surface 102 of the display module 10. The cross section size of the transparent adhesive layer 50 is consistent with that of the light-through opening 301, and the sides of the double-sided adhesive layer 31 and the bubble surface adhesive layer 32, which are close to the light-through opening 301, are contacted with the transparent adhesive layer 50 to completely seal the light-through opening 301. The transparent adhesive layer 50 has a transmittance of 85% or more, for example, the transparent adhesive layer 50 may have a transmittance of 85%, 87%, 88.8%, 89.5%, 90%, 93%, 96%, 99%, 100%, or the like. The refractive index of the transparent adhesive layer 50 is between 1.4 and 1.7, for example, the refractive index of the transparent adhesive layer 50 may be 1.4, 1.45, 1.5, 1.53, 1.6, 1.64, 1.69, 1.7, etc. By way of example, the transparent adhesive layer 50 may be an OCA optical adhesive, of course, the material of the transparent adhesive layer 50 is not limited thereto.
Taking the transparent adhesive layer 50 as an OCA optical adhesive as an example, since the refractive index of the OCA optical adhesive is about 1.48, the substrate 15 is usually made of PET (Polyethylene terephthalate, polyester resin) and has a refractive index of about 1.65, the surface (the first surface 211) of the sensing element 21 facing the display module 10 is usually made of glass and has a refractive index of about 1.5, and the refractive index of air is 1.0. Then, for the sensing element without the transparent glue layer 50, the reflectivity r1 '= (1.65-1.0) ≡2/(1.65+1.0) ≡2≡0.06 of the substrate-air interface, the reflectivity r2' = (1.0-1.5) ≡2/(1.0+1.5) ≡2=0.04 of the air-sensing element interface; for the sensor assembly 100 shown in FIG. 1, the reflectivity R1= (1.65-1.48)/(2/(1.65+1.48)/(2) +0.003 at the interface between the substrate 15 and the transparent adhesive layer 50, and the reflectivity R2= (1.48-1.5)/(2/(1.48+1.5)/(2) + 0.000045) at the interface between the transparent adhesive layer 50 and the sensor element 21 are equal. Comparing R1 and R1', and R2', it can be seen that R1 is much smaller than R1 'and R2 is much smaller than R2'. That is, compared to the sensing device without the transparent adhesive layer 50, in the sensing device 100 shown in fig. 1, the reflectivity of the light at the interface between the substrate 15 and the transparent adhesive layer 50 and the reflectivity of the light at the interface between the transparent adhesive layer 50 and the sensing element 21 are smaller, so that the light reflection is reduced, and the shadow degree of the sensing module 21 is reduced.
In addition, the area of the cross section of the light-through opening of the sensing component without the transparent adhesive layer 50 is generally larger than the area of the first surface of the circuit board, and the area of the cross section of the light-through opening 301 in fig. 1 is smaller than the area of the first surface 221 of the circuit board 22, that is, the light-through opening 301 in fig. 1 is smaller than the light-through opening of the sensing component without the transparent adhesive layer 50. Since the area of the cross section of the light through hole 301 in fig. 1 is smaller than the area of the first surface 221 of the circuit board 22, the double-sided adhesive layer 31 and the foam adhesive layer 32 can partially or even entirely cover the area of the circuit board 22 that is not in contact with the sensing element 21 (also referred to as a non-sensing area, where the sensing element 21 is located is a sensing area), so that the double-sided adhesive layer 31 and the foam adhesive layer 32 can be used for improving the shadow of the non-sensing area, and the transparent adhesive layer 50 is mainly used for improving the shadow of the sensing area, and the two cooperate with each other, so that the shadow generated by the whole sensing module 20 can be eliminated, and the viewing experience of a user is better.
The seal 40 is disposed on the circuit board 22. The seal 40 includes two opposite sides, one of which is in contact with the first surface 221 of the circuit board 22 and the side remote from the circuit board 22 is in contact with the lower surface 321 of the foam layer 32. The sealing member 40 is located between the transparent adhesive layer 50 and the graphite layer 33, and between the transparent adhesive layer 50 and the copper foil layer 34, in other words, the sealing member 40 is accommodated in the avoiding opening 302. In one example, the side of the graphite layer 33 near the relief opening 302 and the side of the copper foil layer 34 near the relief opening 302 are both in contact with the seal 40; in another example, at least one of the side surface of the graphite layer 33 on the side near the relief opening 302 and the side surface of the copper foil layer 34 on the side near the relief opening 302 has a gap with the seal 40. As one example, the sealing member 40 may be a sealing foam, and of course, the material of the sealing member 40 is not limited thereto. The sealing member 40 can seal the sensing element 21 to prevent dust, moisture and other impurities from entering the sensing element 21, thereby affecting the sensing effect of the sensing element 21.
In other examples, the sensing element 100 of the embodiment shown in fig. 1 may be provided with the relief opening 301 in combination with the foam layer 32, the graphite layer 33, and the copper foil layer 34. At this time, the side of the double-sided tape 31 near the light-transmitting opening 301 contacts the transparent adhesive layer 50, and the sealing member 40 is located between the foam adhesive layer 32 and the transparent adhesive layer 50, between the graphite layer 33 and the transparent adhesive layer 50, and between the copper foil layer 34 and the transparent adhesive layer 50. The side of the seal 40 remote from the circuit board 22 is in contact with the lower surface 311 of the double-sided adhesive layer 31.
In summary, the sensing assembly 100 of the embodiment of the present application fills the gap between the sensing module 20 and the display module 10 by using the transparent adhesive layer 50, so as to avoid light reflection at the interface between the display module 10 and the air-sensing module 20 and reduce the shadow degree of the sensing module 20. Even when the display module 10 is irradiated by light, the user can not see the shadow generated by the sensing module 20, which is beneficial to improving the viewing experience of the user. In addition, the size of the through hole 301 formed in the auxiliary material layer 30 is reduced, and the side surface of the auxiliary material layer 50, which is close to the light-transmitting opening 301, is in contact with the transparent adhesive layer 50, so that the auxiliary material layer 30 and the transparent adhesive layer 50 are matched with each other, the auxiliary material layer 50 is mainly used for reducing the shadow of the non-sensing area, and the transparent adhesive layer 50 is mainly used for reducing the shadow of the sensing area, so that the overall shadow of the sensing module 20 is eliminated.
Fig. 2 is a schematic structural diagram of an induction component 100 according to another embodiment. As shown in fig. 2, the sensing assembly 100 includes a display module 10, a sensing module 20, an auxiliary material layer 30, a transparent adhesive layer 50 and a sealing member 40. The sensing assembly 100 shown in fig. 2 is substantially identical in structure to the sensing assembly 100 shown in fig. 1. The difference is mainly that: the display module 10 is a hard screen, for example, an OLED hard screen. Only one double-sided adhesive layer 31 is provided in the auxiliary material layer 30. The double-sided adhesive layer 31 is disposed on the side of the bottom surface 102 of the display module 10. The light-transmitting opening 301 formed in the auxiliary material layer 30 is the light-transmitting opening 301 formed on the double-sided adhesive layer 31, and the light-transmitting opening 301 penetrates through the double-sided adhesive layer 31. The side surface of the double-sided adhesive layer 31 near the light-transmitting port 301 is in contact with the transparent adhesive layer 50. The sealing member 40 is disposed on the circuit board 22, and a side of the sealing member 40 remote from the circuit board 22 is in contact with the lower surface 311 of the double-sided adhesive layer 31. Similar to the sensor 100 shown in fig. 1, the sensor 100 shown in fig. 2 fills the gap between the sensor module 20 and the display module 10 by using the transparent adhesive layer 50, thereby avoiding light reflection at the display module 10-air interface and the air-sensor module 20 interface and reducing the shadow degree of the sensor module 20. In addition, the size of the through hole 301 formed in the double-sided adhesive layer 31 is reduced, and the side surface of the double-sided adhesive layer 31, which is close to the light-transmitting opening 301, is in contact with the transparent adhesive layer 50, so that the double-sided adhesive layer 31 and the transparent adhesive layer 50 are mutually matched, the double-sided adhesive layer 31 is mainly used for reducing the shadow of the non-sensing area, and the transparent adhesive layer 50 is mainly used for reducing the shadow of the sensing area, thereby eliminating the integral shadow of the sensing module 20.
Fig. 3 is a schematic structural diagram of a sensing assembly 100 according to yet another embodiment. As shown in fig. 3, the sensing assembly 100 includes a display module 10, a sensing module 20, an auxiliary material layer 30, and a sealing member 40.
The display module 10 includes a display surface 101 and a bottom surface 102 opposite to each other. The display surface 101 faces the user, and the display surface 101 is used for displaying images. The display module 10 may be a flexible screen. As shown in fig. 3, the display module 10 includes a Cover Glass (CG) 11, an Optically Clear Adhesive (OCA) 12, a Polarizer (POL) 13, a light-emitting layer (Panel) 14, and a substrate (U-film) 15. Along the direction of the display surface 101 pointing to the bottom surface 102, the cover glass 11, the optically transparent adhesive 12, the polarizer 13, the light-emitting layer 14 and the substrate 15 are sequentially arranged.
The sensing module 20 is disposed on a side of the bottom surface 102, and a gap exists between the sensing module and the bottom surface 102. The sensing module 20 may be any light sensing device that may be placed under a screen, such as an optical fingerprint recognition module, a proximity sensor, a light sensor, an imaging module, etc., and is not limited herein. The sensing module 20 includes a sensing element 21 and a circuit board 22. The sensing element 21 is disposed on the circuit board 20 and located between the display module 10 and the circuit board 22. The first projection of the sensing element 21 onto the circuit board 22 is located in the first surface 221 of the circuit board 22, so that the portion of the circuit board 22 not in contact with the sensing element 21 can be used to route the wiring for connecting the sensing element 21 to the circuit board 22, thereby electrically connecting the sensing element 21 to the circuit board 22.
The auxiliary material layer 30 is disposed on the side of the bottom surface 102. The auxiliary material layer 30 is provided with a light-transmitting port 301. The sensing module 20 receives the light passing through the light-passing port 301. The area of the second projection of the light through opening 301 on the circuit board 22 is greater than or equal to the area of the first surface 221 of the circuit board 22. The color number of the color of the portion of the auxiliary material layer 30 near the side of the display module 10 is located between the cold ashes 5C to 11C. Specifically, the auxiliary material layer 30 includes a double-sided adhesive layer (EMBO) 31, a FOAM layer (FOAM) 32, a graphite layer 33, and a copper foil layer (Cu) 34. Along the light emitting direction of the display module 10, the copper foil layer 34, the graphite layer 33, the foam adhesive layer 32 and the double-sided adhesive layer 31 are sequentially arranged, and the double-sided adhesive layer 31 is located between the display module 10 and the foam adhesive layer 32. The double-sided adhesive layer 31 may be used to adhere other auxiliary materials to the bottom surface 102 of the display module 10, and may also be used to protect the bottom surface 102 of the display module 10 from abrasion. The foam gel layer 32 can play a role of buffering protection. The graphite layer 33 may be used for heat dissipation of the display module 10. The copper foil layer 34 may be used to shield interference between the display module 10 and the rest of the electronic devices. The double-sided adhesive layer 31, the foam adhesive layer 32, the graphite layer 33 and the copper foil layer 34 are provided with light-passing openings 301 together, that is, the light-passing openings 301 penetrate through the double-sided adhesive layer 31, the foam adhesive layer 32, the graphite layer 33 and the copper foil layer 34. The area of the second projection of the light through opening 301 on the circuit board 22 is greater than or equal to the area of the sensing element 21 greater than or equal to the area of the first surface 221 of the circuit board 22. In this way, the light-passing port 301 does not block the sensing element 21, so as to ensure that the sensing element 21 can receive more light; meanwhile, the light through opening 301 will not block the space above the circuit board 22, and other elements with a certain height may be disposed at the position of the circuit board 22 not contacted with the sensing element 21.
The portion of the auxiliary material layer 30 near the side of the display module 10 is a double-sided adhesive layer 31. The color number of the color of the double-sided adhesive layer 31 is located between the cold ashes 5C to 11C, for example, the color number of the double-sided adhesive layer 31 may be cold ashes 5C, 6C, 7C, 8C, 9C, 10C, 11C, or the like. According to experimental verification, the lighter the color of the portion (i.e., the double-sided adhesive layer 31) of the auxiliary material layer 30 near the side of the display module 10, the more obvious the shadow corresponding to the auxiliary material layer 30. When the color of the double-sided adhesive layer 31 is gray, the degree of the shadow generated by the auxiliary material layer 30 is about 4 (the larger the number, the more obvious the shadow); when the color of the double-sided adhesive layer 31 is black, the degree of shading generated by the auxiliary material layer 30 is about 0 level. Because air exists in the gap between the sensing module 20 and the display module 10, the degree of the shadow generated by the sensing module 20 is about 3 levels, so that the color of the double-sided adhesive layer 31 can be changed to a color in a certain color segment between gray and black, so that the degree of the shadow generated by the auxiliary material layer 30 is about equal to the degree of the shadow generated by the sensing module 20. Thus, when the user views the display module 10, the user sees a complete shadow area completely matching the size of the display surface 101, and at this time, the user does not find the existence of the shadow, so that the user viewing experience is better.
The seal 40 is disposed on the circuit board 22. The sealing member 40 includes two opposite sides, one of which is in contact with the first surface 221 of the circuit board 22, and the other side, which is away from the circuit board 22, is in contact with the bottom surface 102 of the display module 10. The side surface of the double-sided adhesive layer 31 near the light-transmitting port 301 may be in contact with the sealing member 40; alternatively, the side surface of the double-sided tape 31 near the light-transmitting port 301 may have a gap with the sealing member 40, which is not limited herein. As one example, the sealing member 40 may be a sealing foam, and of course, the material of the sealing member 40 is not limited thereto. The sealing member 40 can seal the sensing element 21 to prevent dust, moisture and other impurities from entering the sensing element 21, thereby affecting the sensing effect of the sensing element 21. Further, to avoid the problem of the shadow generated by the sealing member 40 after the sealing member 40 is disposed, the color number of the color of the sealing member 40 may be set to be located between the cold ashes 5C to 11C, for example, the color number of the sealing member 40 may be cold ashes 5C, 6C, 7C, 8C, 9C, 10C, 11C, or the like. Thus, the degree of the shadow generated by the sealing member 40 is approximately equal to the degree of the shadow generated by the auxiliary material layer 30 and the degree of the shadow generated by the sensing module 20, so that when the user views the display module 10, a complete shadow area completely matching with the size of the display surface 101 is seen, at this time, the user does not find the existence of the shadow, and the user viewing experience is better.
In summary, the sensing device 100 of the present embodiment does not need to change the size of the light-transmitting opening 301 formed in the auxiliary material layer 30, but directly changes the color of the portion of the auxiliary material layer 30 near the display module 10, so that the shadow degree of the auxiliary material layer 20 is consistent with the shadow degree of the sensing module 20. When the user views the display module 10, the shadow of the auxiliary material layer 20 and the shadow of the sensing module 20 are seen at the same time, and because the shadow degrees of the two are consistent, when the user views the display module 10, the user views a complete shadow area completely matched with the size of the display surface 101, at this time, the user cannot find the existence of the shadow, and the user viewing experience is better.
Fig. 4 is a schematic structural diagram of a sensing assembly 100 according to yet another embodiment. As shown in fig. 4, the sensing assembly 100 includes a display module 10, a sensing module 20, an auxiliary material layer 30, and a sealing member 40. The sensing assembly 100 shown in fig. 4 is substantially identical in structure to the sensing assembly 100 shown in fig. 3. The difference is mainly that: the display module 10 is a hard screen, for example, an OLED hard screen. Only one double-sided adhesive layer 31 is provided in the auxiliary material layer 30. The double-sided adhesive layer 31 is disposed on the side of the bottom surface 102 of the display module 10. The light-transmitting opening 301 formed in the auxiliary material layer 30 is the light-transmitting opening 301 formed on the double-sided adhesive layer 31.
Fig. 5 is a schematic structural diagram of a sensing assembly 100 according to yet another embodiment. As shown in fig. 5, the sensing assembly 100 includes a display module 10, a sensing module 20, an auxiliary material layer 30, and a sealing member 40. The sensing assembly 100 shown in fig. 5 is substantially identical in structure to the sensing assembly 100 shown in fig. 3. The difference is mainly that: in the induction module 100 shown in fig. 5, the auxiliary material layer 30 is provided with a relief opening 302 in addition to the light-passing opening 301. The light-transmitting opening 301 is commonly formed in the double-sided adhesive layer 31, the foam adhesive layer 32, the graphite layer 33 and the copper foil layer 34, that is, the light-transmitting opening 301 penetrates through the double-sided adhesive layer 31, the foam adhesive layer 32, the graphite layer 33 and the copper foil layer 34, and the area of the second projection of the light-transmitting opening 301 on the circuit board 22 is smaller than the area of the first surface 221 of the circuit board 22. The foam adhesive layer 32, the graphite layer 33 and the copper foil layer 34 are also provided with avoiding openings 302, and the space formed by the foam adhesive layer 32, the graphite layer 33 and the copper foil layer 34 is formed by the light passing openings 301 and the avoiding openings 302. The sealing member 40 is disposed on the circuit board 22, where a surface of the sealing member 40 away from the circuit board 22 contacts the lower surface 311 of the double-sided adhesive layer 31, and a side surface of the sealing member 40 near the sensing element 21 and a side surface of the double-sided adhesive layer 31 near the light-transmitting opening 301 are located in the same plane, where the color of the sealing member 40 may be any color. Comparing fig. 3 and fig. 5, the sensing assembly 100 shown in fig. 3 solves the problem of the shadow generated by the sealing member 40 by changing the color of the sealing member 40, and the sensing assembly 100 shown in fig. 5 solves the problem of the shadow generated by the sealing member 40 by reducing the size of the light-transmitting opening 301.
Fig. 6 is a schematic structural diagram of a sensing assembly 100 according to yet another embodiment. As shown in fig. 6, the sensing assembly 100 includes a display module 10, a sensing module 20, an auxiliary material layer 30, and a sealing member 40. The sensing assembly 100 shown in fig. 6 is substantially identical in structure to the sensing assembly 100 shown in fig. 4. The difference is mainly that: in the sensing assembly 100 shown in fig. 6, the area of the second projection of the light-transmitting opening 301 formed in the double-sided adhesive layer 31 on the circuit board 22 is smaller than the area of the first surface 221 of the circuit board 22. The sealing member 40 is disposed on the circuit board 22, where a surface of the sealing member 40 away from the circuit board 22 contacts the lower surface 311 of the double-sided adhesive layer 31, and a side surface of the sealing member 40 near the sensing element 21 and a side surface of the double-sided adhesive layer 31 near the light-transmitting opening 301 are located in the same plane, where the color of the sealing member 40 may be any color. Comparing fig. 4 and fig. 6, the sensing assembly 100 shown in fig. 4 solves the problem of the shadow generated by the sealing member 40 by changing the color of the sealing member 40, and the sensing assembly 100 shown in fig. 6 solves the problem of the shadow generated by the sealing member 40 by reducing the size of the light-transmitting opening 301.
Referring to fig. 7, the present application further provides an electronic device 300. The electronic device 300 includes a housing 200 and the sensing assembly 100 according to any of the embodiments described above. The sensing assembly 100 is coupled with the housing 200, for example, the sensing assembly 100 is mounted on the housing 200. The electronic device 300 may be a mobile phone, a tablet computer, a notebook computer, an intelligent wearable device (such as a smart bracelet, a smart watch, a smart glasses, a smart helmet, etc.), a head display device, a virtual reality device, etc., which are not limited herein.
The electronic device 300 of the embodiment of the application fills the gap between the sensing module 20 and the display module 10 by using the transparent adhesive layer 50, thereby avoiding light reflection at the interface between the display module 10 and the air-sensing module 20 and reducing the shadow degree of the sensing module 20. Even when the display module 10 is irradiated by light, the user can not see the shadow generated by the sensing module 20, which is beneficial to improving the viewing experience of the user. Alternatively, the electronic device 300 of the embodiment of the present application changes the color of the portion of the auxiliary material layer 30 near the side of the display module 10, so that the shadow degree of the auxiliary material layer 20 is consistent with the shadow degree of the sensing module 20. When the user views the display module 10, the shadow of the auxiliary material layer 20 and the shadow of the sensing module 20 are seen at the same time, and because the shadow degrees of the two are consistent, when the user views the display module 10, the user views a complete shadow area completely matched with the size of the display surface 101, at this time, the user cannot find the existence of the shadow, and the user viewing experience is better.
In the description of the present specification, reference to the terms "certain embodiments," "one embodiment," "some embodiments," "an exemplary embodiment," "an example," "a particular example," or "some examples" means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, for example two, three, unless explicitly defined otherwise.
While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the present application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the present application.
Claims (7)
1. An induction assembly, comprising:
the display module comprises a display surface and a bottom surface which are opposite;
the sensing module is arranged on one side of the bottom surface, and a gap exists between the sensing module and the bottom surface;
the auxiliary material layer is arranged on one side of the bottom surface, a light-passing opening is formed in the auxiliary material layer, and the sensing module receives light rays passing through the light-passing opening; a kind of electronic device with high-pressure air-conditioning system
The transparent adhesive layer is arranged between the sensing module and the display module and used for filling the gap;
the sensing module comprises a circuit board and a sensing element, wherein the sensing element is arranged on the circuit board and is positioned between the display module and the circuit board, the circuit board comprises a first surface and a second surface which are opposite, the sensing element is arranged on the first surface, and a first projection of the sensing element on the circuit board is positioned in the first surface of the circuit board;
the area of the second projection of the light through opening on the circuit board is larger than or equal to the area of the first projection and smaller than the area of the first surface of the circuit board, and the side face of the light through opening is in contact with the transparent adhesive layer.
2. The sensing assembly of claim 1, wherein the auxiliary material layer comprises a double sided adhesive layer, the light through opening extending through the double sided adhesive layer;
the induction component further comprises a sealing piece, the sealing piece is arranged on the circuit board, and one surface, far away from the circuit board, of the sealing piece is in contact with the lower surface of the double-sided adhesive layer.
3. The sensing assembly of claim 1, wherein the auxiliary material layer comprises a double-sided adhesive layer and a foam adhesive layer, the double-sided adhesive layer is positioned between the display module and the foam adhesive layer, and the light through opening penetrates through the double-sided adhesive layer and the foam adhesive layer;
the sensing assembly further comprises a sealing element, the sealing element is arranged on the circuit board, and one surface, far away from the circuit board, of the sealing element is in contact with the lower surface of the foam rubber layer.
4. The sensing assembly of claim 3, wherein the auxiliary material layer further comprises a graphite layer and a copper foil layer, the graphite layer, the foam adhesive layer and the double-sided adhesive layer are sequentially arranged along the light emitting direction of the display module, and the sealing element is located between the transparent adhesive layer and the graphite layer and between the transparent adhesive layer and the copper foil layer.
5. The sensing assembly of any of claims 1-4, wherein the transparent glue layer has a transmittance of greater than or equal to 85%.
6. The sensing assembly of any of claims 1-4, wherein the transparent glue layer has a refractive index between 1.4 and 1.7.
7. An electronic device, comprising:
a housing; a kind of electronic device with high-pressure air-conditioning system
The sensing assembly of any of claims 1-6, coupled to the housing.
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| CN202010315364.4A CN113539061B (en) | 2020-04-21 | 2020-04-21 | Induction component and electronic device |
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| CN202010315364.4A CN113539061B (en) | 2020-04-21 | 2020-04-21 | Induction component and electronic device |
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