CN112927620A - Electronic device and display device - Google Patents
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- CN112927620A CN112927620A CN202110134099.4A CN202110134099A CN112927620A CN 112927620 A CN112927620 A CN 112927620A CN 202110134099 A CN202110134099 A CN 202110134099A CN 112927620 A CN112927620 A CN 112927620A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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Abstract
The embodiment of the application discloses a display device, including NFC module and backlight unit, the NFC module includes NFC coil and NFC ferrite, backlight unit is including the reflector layer and the first insulation layer of superpose in proper order, the NFC coil sets up on the reflector layer, and be located within the first insulation layer, the NFC ferrite sets up the one side at the reflector layer NFC coil dorsad, this kind of structure can realize in the NFC module embedding backlight unit, and then avoid the occupation of NFC module to display device superpose space, and reduce display device thickness, do benefit to display device to frivolousization development, this application still discloses an electronic equipment.
Description
Technical Field
The present disclosure relates to electronic devices, and particularly to an electronic device and a display device.
Background
With the increase of user requirements, more and more functional modules are configured for electronic equipment. The function modules can enable the functions of the electronic equipment to be more and more, and further can meet more use requirements of users.
In the related art, the electronic device is provided with a Near Field Communication (NFC) module. The NFC module enables the electronic equipment to have a near field communication function. In this case, the electronic device can be used for payment, motion monitoring, entrance guard opening and the like, and obviously, the application scene of the electronic device can be further widened.
In the related art, the electronic device is provided with the display module, and the NFC module is attached to the back surface of the display module (i.e., the surface opposite to the display surface of the display module), so that the NFC module and the display module can be mounted in an overlapping manner. However, the thickness of the electronic device is increased due to the assembly structure, and the demand for the electronic device to be thinner cannot be met.
Disclosure of Invention
The invention provides a display device, which aims to solve the problem of thickness increase caused by the fact that an NFC module occupies the overlapping space of the display device.
In one aspect, the application discloses a display device, including NFC module and backlight unit, wherein: the NFC module comprises an NFC coil and an NFC ferrite; the backlight module comprises a reflecting layer and a first insulating layer which are sequentially overlapped, the NFC coil is arranged on the reflecting layer and located in the first insulating layer, and the NFC ferrite is overlapped on the reflecting layer and located on one side, back to the NFC coil, of the reflecting layer.
In another aspect, the present application discloses an electronic device including the display apparatus.
The invention has the following beneficial effects:
this application optimizes through the structure to display device, makes the NFC coil setting on the reflector layer to within setting up the first insulation layer, and then realize in the NFC module imbeds display device, thereby avoid the occupation of NFC module to display device superpose space, and reduce display device thickness, do benefit to display device and develop to frivolousization, finally be favorable to electronic equipment to design towards thinner direction.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a layout diagram of an NFC module in a display device according to an embodiment of the disclosure;
FIG. 2 is an enlarged view at I of FIG. 1 in accordance with an embodiment of the present invention;
FIG. 3 is a cross-sectional view taken along line M-M of FIG. 1 in accordance with an embodiment of the present invention;
FIG. 4 is a block diagram of a light source module layer according to an embodiment of the disclosure.
Description of reference numerals:
100-NFC module,
110-NFC coil, 111-first coil end, 112-second coil end,
120-NFC ferrite, 121-convex ring,
200-backlight module, 200 a-display area, 200 b-non-display area,
210-reflective layer, 211-end outer edge, 212-first electrode sheet, 213-second electrode sheet,
220-first insulating layer, 230-first protective layer,
240-light source component layer, 241-light guide layer, 242-light source, 243-reflector, 244-light source electrode sheet,
250-diffusion layer, 260-light-enhancing layer,
300-a first flexible circuit board, 400-a bridging trace and 500-glue.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some 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.
As shown in fig. 3, the display device disclosed in the present application includes an NFC module 100 and a backlight module 200. Wherein: the NFC module 100 includes an NFC coil 110 and an NFC ferrite 120, and the backlight module 200 includes a reflective layer 210 and a first insulating layer 220 stacked in sequence, where the first insulating layer 220 is located on a side of the reflective layer 210 facing the backlight module 200 to provide backlight. The NFC coil 110 is disposed on the reflective layer 210 and within the first insulating layer 220, and the NFC ferrite 120 is stacked on the reflective layer 210 and on a side of the reflective layer 210 facing away from the NFC coil 110.
The display device disclosed in the embodiment of the application comprises a display screen, wherein the display screen is overlapped on the backlight module 200, and the display function is realized under the action of backlight provided by the backlight module 200.
In this application, the reflective layer 210 is an important component of the backlight module 200 capable of effectively reflecting light, and is used for reflecting the light emitted from the backlight module 200 to a desired position, for example, to reflect the light toward the NFC coil 110.
The NFC module 100 functions as an NFC function, and in a specific working process, the NFC ferrite 120 bunches magnetic flux and effectively increases an induction distance by increasing magnetic field intensity, and the NFC coil 110 is used for generating an NFC signal. This application is through setting up NFC coil 110 on reflector layer 210 to within embedding first insulating layer 220, make NFC coil 110 need not to occupy the superpose space alone, and then avoid NFC module 100 to the occuping of backlight unit 200 superpose space, can effectively reduce this application display device thickness, and then be favorable to electronic equipment to design towards thinner direction.
Through experimental data statistics, the design mode that the NFC module 100 and the backlight module 200 are adaptive is adopted, the thickness of the display device is reduced by about 300 microns, and the display device is favorably developed towards light and thin.
In a specific process implementation, the NFC coil 110 may be first attached to the reflective layer 210 by evaporation, and then the first insulating layer 220 is stacked on the reflective layer 210 by vapor deposition, so that the NFC coil 110 is located in the first insulating layer 220, thereby implementing the assembly of the display device of the present application. The specific material of the NFC coil 110 may be transparent ITO, nano silver, TiAlTi, or the like, and as an alternative process, the ITO and TiAlTi may be disposed on the reflective layer 210 by magnetron sputtering, and the nano silver may be disposed on the reflective layer 210 by a liquid coating method.
In a more specific embodiment, as shown in fig. 1, the NFC coil 110 extends along an edge of the backlight module 200 and is disposed in multiple turns, the backlight module 200 includes a display area 200a and a non-display area 200b, the non-display area 200b is disposed around the display area 200a, a portion of the NFC coil 110 is located in the display area 200a, and another portion of the NFC coil 110 is located in the non-display area 200b, such a layout manner can effectively prevent the NFC coil 110 from entering the center of the display area 200a to reduce the screen occupation ratio, and a regular routing manner is also beneficial to avoiding the problem of card reading and screen flashing.
More specifically, NFC coil 110 is transparent and walks the line to further improve the screen and account for the ratio, NFC coil 110 adopts the coating by vaporization technology can adjust transparent metal composition proportion in a flexible way simultaneously, with the different work scenes of adaptation.
In some embodiments, as shown in fig. 1 and 2, the NFC coil 110 includes a first coil end 111 adjacent to a center of the backlight assembly 200 and a second coil end 112 adjacent to an edge of the backlight assembly 200. The display device further includes a first flexible circuit board 300.
The first end of the first flexible circuit board 300 is connected to the edge of the backlight module 200 and electrically connected to the second coil end 112, and the first coil end 111 is electrically connected to the first flexible circuit board 300 through the bridging trace 400.
The first flexible circuit board 300 may be designed to transmit the NFC signal generated by the NFC module 100 to an external chip to complete signal transmission. The first flexible circuit board 300 is disposed at the edge of the backlight module 200, and is coupled to the bridging trace 400 and communicates with the first coil end 111 and the second coil end 112, so that the first flexible circuit board 300 can be ensured to be away from the center of the backlight module 200 while effectively transmitting the NFC signal, thereby avoiding interference with the operation of the backlight module 200.
In some embodiments, as shown in fig. 3, the backlight module 200 further includes a light source module layer 240, wherein the light source module layer 240 is stacked on a side of the first insulating layer 220 facing away from the reflective layer 210 and covers the bridging trace 400.
The light source module layer 240 is a core component of the backlight module 200, and its main working mode is: the light source module layer 240 emits a first part of light toward the reflective layer 210, and emits a second part of light toward the reflective layer 210, and the second part of light is emitted toward the emitting direction of the first part of light after passing through the reflective layer 210, so that the backlight module 200 can emit light through the light source module layer 240, thereby completing corresponding work. The reflective layer 210 can reflect the second portion of light to the light-emitting direction of the backlight module 200, thereby improving the utilization rate of light.
Specific structure of the light source module layer 240 as shown in fig. 3 and 4, the light source module layer 240 may include a light guide layer 241 and a light source 242. The light source 242 is disposed on one side of the light guide layer 241, and the light source module layer 240 is stacked on the first insulating layer 220 through the light guide layer 241. In actual work, the light that light source 242 sent will penetrate into leaded light layer 241 to send first part light and second part light through leaded light layer 241, because leaded light layer 241 whole area is greater than light source 242, light source subassembly layer 240 will finally give out light with the form of area source like this, will make first part light and the more even sending of second part light, and luminous effect is better.
More specifically, as shown in fig. 4, the light source module layer 240 may further include a reflective cover 243. The reflector 243 covers the light source 242 and is disposed opposite to the light guide layer 241, and a reflective opening is disposed on a side of the reflector 243 facing the light guide layer 241. The light emitted from the light source 242 is reflected by the reflector 243 and then enters the light guide layer 241 through the reflection opening.
Thus, the light emitted from the light source 242 not only directly enters the light guiding layer 241, but also partially enters the light guiding layer 241 through the reflection opening after being reflected by the reflection cover 243, so that the light entering the light guiding layer 241 is increased, the brightness of the first partial light and the second partial light is enhanced, and the utilization rate of the light can be improved.
In some embodiments, as shown in fig. 3, the backlight module 200 may further include a first protective layer 230. The first protection layer 230 may be stacked between the first insulating layer 220 and the light source module layer 240, the first portion of the bridge trace 400 may be disposed in the first insulating layer 220, and the second portion of the bridge trace 400 may be disposed in the first protection layer 230.
The first protection layer 230 may be made of different materials according to different specific working scenarios, for example, an organic photoresist layer that prevents water and oxygen corrosion is used to prevent the water and oxygen from corroding the bridging wire 400, or the first protection layer 230 is made of the same material as the first insulation layer 220 to provide insulation protection and prevent a short circuit between the bridging wire 400 and the light source module layer 240.
The bridging trace 400 is partially located in the first insulating layer 220, so that the first coil end 111 can be connected while the first insulating layer 220 keeps a gap with other parts of the NFC coil 110, and the first insulating layer 220 can prevent a short circuit between the bridging trace 400 and the NFC coil 110; the first portion of the bridging trace 400 is disposed in the first insulating layer 220, and the second portion of the bridging trace 400 is disposed in the first protective layer 230, so that the bridging trace 400 is embedded between the first insulating layer 220 and the first protective layer 230, thereby preventing the bridging trace 400 from occupying the stacking space of the backlight module 200, and further thinning the display device.
Furthermore, the NFC coil 110 may be a spiral line disposed at the edge of the backlight module 200, and is integrally attached to the reflective layer 210 in a square or rectangular layout, and is formed by surrounding the display area 200a to the non-display area 200b one by one, so that the first coil end 111 and the second coil end 112 are both disposed on the reflective layer 210, that is, on the same thickness of the backlight module 200 in the stacking direction, so as to reduce the thickness of the NFC coil 110 in the backlight module 200 in the stacking direction as much as possible, and the reduction effect of the display device is better by matching with the connection manner of the bridging wires 400.
Meanwhile, as a specific process means, the bridging trace 400 may be disposed on the backlight module 200 in a magnetron sputtering manner, which is also beneficial to reducing the occupation of the bridging trace 400 on the stacking space.
More specifically, as shown in fig. 1 to 3, the reflective layer 210 includes an end outer edge 211. The first insulating layer 220 forms a first projection on the reflective layer 210, and the end portion outer edge 211 forms a second projection on the reflective layer 210, wherein the first projection and the second projection are coplanar and located on one side of the second projection. The first electrode sheet 212 and the second electrode sheet 213 are fixed on the surface of the outer edge 211 of the end portion facing the display direction of the backlight module 200, the first end of the first flexible circuit board 300 is used for being electrically connected with the first electrode sheet 212 and the second electrode sheet 213, the first coil end 111 is electrically connected with the first electrode sheet 212 through the bridging wiring 400, and the second coil end 112 is electrically connected with the second electrode sheet 213. The second end of the first flexible circuit board 300 is used for electrical connection with a main board of the electronic device.
In this way, the first electrode sheet 212 and the second electrode sheet 213 can be fully exposed through the arrangement of the end outer edge 211, so that the connection between the NFC coil 110 and the first flexible circuit board 300 is facilitated, and the signal generated by the NFC coil 110 is more favorably transmitted to the first flexible circuit board 300 by using the first electrode sheet 212 and the second electrode sheet 213 as an intermediate transmission medium.
The first electrode sheet 212 and the second electrode sheet 213 may be made of ITO, nano silver, TiAlTi, or the like, or may be deposited on the surface of the reflective layer 210 by evaporation.
More specifically, as shown in fig. 3, the light source module layer 240 may include a light source electrode sheet 244. The first end of the first flexible circuit board 300 is electrically connected to the light source electrode pad 244, and the light source module layer 240 is electrically connected to the first flexible circuit board 300 through the light source electrode pad 244.
Like this, first flexible circuit board 300 is being connected with NFC coil 110 electricity, and when receiving and dispatching the NFC signal, also can be through the energy supply of light source electrode piece 244 to light source subassembly layer 240 to guarantee light source subassembly layer 240 normal work, simplify the electric elements overall arrangement among the device of this application.
In some embodiments, as shown in fig. 3, the backlight module 200 may further include a diffusion layer 250, and the diffusion layer 250 is stacked on a side of the light source module layer 240 facing away from the first protective layer 230. The diffusion layer 250 is used for diffusing the light emitted from the light source module layer 240, so that the light is emitted more uniformly, and the light emitting effect of the light source module layer 240 is enhanced.
Further, the backlight module 200 further includes a light-enhancing layer 260, and the light-enhancing layer 260 is stacked on a side of the diffusion layer 250 facing away from the light source module layer 240. The light-enhancing layer 260 has a light-gathering effect, and light emitted by the light source assembly layer 240 is uniformly diffused by the diffusion layer 250, and then the brightness of the light-enhancing layer 260 is enhanced, so that the light-emitting effect of the light source assembly layer 240 is further enhanced.
Furthermore, as shown in fig. 3, the first end of the first flexible circuit board 300 is fixed to the first electrode plate 212 and the second electrode plate 213 in an overlapping manner, and a colloid 500 is disposed between the end surfaces of the first electrode plate 212 and the second electrode plate 213 and the first flexible circuit board 300 to ensure that the connection is more stable, and meanwhile, the colloid 500 can prevent the first end of the first flexible circuit board 300 from being bent at a larger angle, so as to protect the first flexible circuit board 300. The glue 500 may be a vertical line glue as a bonding agent.
Furthermore, the NFC coil 110, the first electrode sheet 212 and the second electrode sheet 213 are disposed on the same layer, for example, on the surface of the reflective layer 210 and located in the first insulating layer 220, so as to improve the space utilization rate and further avoid occupying the stacking space of the backlight module 200.
In some embodiments, as shown in fig. 3, the surface of the NFC ferrite 120 facing the reflective layer 210 is a first end surface on which the protruding ring 121 is disposed. The projection of NFC coil 110 on the first end face is located in the projection of convex ring 121 on the first end face. The surface of the NFC ferrite 120 surrounded by the convex ring 121 can serve as a receiving surface for sending signals to the NFC coil 110, and the addition of the convex ring 121 on the surface of the NFC ferrite 120 can further focus magnetic flux, thereby improving the strength and stability of NFC signals.
In the display device disclosed in the embodiment of the present application, the backlight module 200 may further include a supporting frame, where the supporting frame is usually an iron frame, and the supporting frame can support other structures of the backlight module 200. In a further technical scheme, the support frame is the NFC ferrite 120, and under such a condition, the support frame is multiplexed with the NFC ferrite 120, so that the support frame of the backlight module 200 can exert an effect of dual purposes, the problem of thickness increase caused by stacking more structures on the backlight module 200 is avoided, and the display device is further facilitated to be designed towards a thinner direction.
It should be further noted that the specific process for stacking the reflective layer 210, the first insulating layer 200, the first protective layer 230, the light source module layer 240, the diffusion layer 250 and the light-enhancing layer 260 in sequence can be performed by vapor deposition.
Based on the display device disclosed by the embodiment of the application, the embodiment of the application discloses an electronic device, and the disclosed electronic device comprises the display device disclosed by the embodiment.
The electronic device disclosed in the embodiment of the present application may be a mobile phone, a tablet computer, an electronic book reader, a wearable device (e.g., a smart watch, smart glasses), and the like, and the embodiment of the present application does not limit the specific kind of the electronic device.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (16)
1. A display device, comprising an NFC module (100) and a backlight module (200), wherein:
the NFC module (100) comprises an NFC coil (110) and an NFC ferrite (120);
the backlight module (200) comprises a reflecting layer (210) and a first insulating layer (220) which are sequentially stacked,
the NFC coil (110) is arranged on the reflection layer (210) and located in the first insulation layer (220), and the NFC ferrite (120) is superposed on the reflection layer (210) and located on the side, facing away from the NFC coil (110), of the reflection layer (210).
2. The display device according to claim 1, wherein the NFC coil (110) extends along an edge of the backlight module (200) and is disposed in a plurality of turns, the backlight module (200) includes a display region (200a) and a non-display region (200b), the non-display region (200b) is disposed around the display region (200a), a portion of the NFC coil (110) is located in the display region (200a), and another portion of the NFC coil (110) is located in the non-display region (200 b).
3. The display device according to claim 1, wherein the NFC coil (110) is a transparent trace.
4. The display device according to claim 1, wherein the NFC coil (110) comprises a first coil end (111) adjacent to a center of the backlight module (200) and a second coil end (112) adjacent to an edge of the backlight module (200), the display device further comprises a first flexible circuit board (300), a first end of the first flexible circuit board (300) is connected to the edge of the backlight module (200) and electrically connected to the second coil end (112), and the first coil end (111) is electrically connected to the first flexible circuit board (300) through a bridge trace (400).
5. The display device according to claim 4, wherein the backlight module (200) further comprises a light source module layer (240), the light source module layer (240) being stacked on a side of the first insulating layer (220) facing away from the reflective layer (210) and covering the bridge trace (400),
the light source component layer (240) emits a first part of light rays towards the reflecting layer (210) in a back direction, and emits a second part of light rays towards the reflecting layer (210), and the second part of light rays are emitted towards the emitting direction of the first part of light rays after passing through the reflecting layer (210).
6. The display device according to claim 5, wherein the light source module layer (240) comprises a light guiding layer (241) and a light source (242),
the light source (242) is arranged on one side of the light guide layer (241), the light source component layer (240) is overlapped on the first insulating layer (220) through the light guide layer (241),
the light emitted by the light source (242) is emitted into the light guide layer (241), and the first part of light and the second part of light are emitted through the light guide layer (241).
7. The display device according to claim 6, wherein the light source module layer (240) further comprises a reflector (243),
the reflector (243) covers the light source (242) and is arranged opposite to the light guide layer (241), one side of the reflector (243) facing the light guide layer (241) is provided with a reflecting port,
the light emitted by the light source (242) is reflected by the reflecting cover (243) and then enters the light guide layer (241) through the reflecting port.
8. The display device according to claim 5, wherein the backlight module (200) further comprises a first protective layer (230), the first protective layer (230) being stacked between the first insulating layer (220) and the light source module layer (240),
a first portion of the bridging trace (400) is disposed within the first insulating layer (220), and a second portion of the bridging trace (400) is disposed within the first protective layer (230).
9. The display device according to claim 8, wherein the reflective layer (210) comprises end outer edges (211),
the first insulating layer (220) forms a first projection on the reflective layer (210), the end outer edge (211) forms a second projection on the reflective layer (210), the first projection and the second projection are coplanar and located on one side of the second projection,
the surface of the outer edge (211) of the end part, facing the display direction of the backlight module (200), is fixedly provided with a first electrode plate (212) and a second electrode plate (213), the first end of the first flexible circuit board (300) is electrically connected with the first electrode plate (212) and the second electrode plate (213), the first coil end (111) is electrically connected with the first electrode plate (212) through the bridging wiring (400), and the second coil end (112) is electrically connected with the second electrode plate (213).
10. The display device according to claim 9, wherein the light source assembly layer (240) includes a light source electrode pad (244), the first end of the first flexible circuit board (300) is electrically connected to the light source electrode pad (244),
the light source assembly layer (240) is electrically connected with the first flexible circuit board (300) through the light source electrode sheet (244).
11. The display device according to claim 8, wherein the backlight module (200) further comprises a diffusion layer (250), the diffusion layer (250) being stacked on a side of the light source module layer (240) facing away from the first protective layer (230).
12. The display device according to claim 11, wherein the backlight module (200) further comprises a light-adding layer (260), and the light-adding layer (260) is stacked on a side of the diffusion layer (250) facing away from the light source module layer (240).
13. The display device according to claim 9, wherein a first end of the first flexible circuit board (300) is fixed to the first electrode sheet (212) and the second electrode sheet (213) in a lap joint manner, and a sealant (500) is provided between end faces of the first electrode sheet (212) and the second electrode sheet (213) and the first flexible circuit board (300).
14. The display device according to claim 9, wherein the NFC coil (110), the first electrode sheet (212), and the second electrode sheet (213) are provided in the same layer.
15. The display device according to claim 1, wherein the backlight module (200) further comprises a support frame, and the support frame is the NFC ferrite (120).
16. An electronic apparatus characterized by comprising the display device according to any one of claims 1 to 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110134099.4A CN112927620A (en) | 2021-01-28 | 2021-01-28 | Electronic device and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110134099.4A CN112927620A (en) | 2021-01-28 | 2021-01-28 | Electronic device and display device |
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| CN112927620A true CN112927620A (en) | 2021-06-08 |
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| CN202110134099.4A Pending CN112927620A (en) | 2021-01-28 | 2021-01-28 | Electronic device and display device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022161311A1 (en) * | 2021-01-28 | 2022-08-04 | 维沃移动通信有限公司 | Electronic device and display apparatus |
| WO2022161333A1 (en) * | 2021-01-28 | 2022-08-04 | 维沃移动通信有限公司 | Electronic equipment and display device |
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Application publication date: 20210608 |