This disclosure relates to the field of electronic devices, and in particular, to a display screen assembly, an antenna assembly, and an electronic device.
With the development of mobile communication technology, the traditional fourth generation (4G) mobile communication cannot meet user requirements. The fifth generation (5G) mobile communication is favored by users due to its high communication speed. For example, a data transmission speed in the 5G mobile communication is hundreds of times higher than that in the 4G mobile communication. The 5G mobile communication is mainly implemented via millimeter wave signals. However, in case that a millimeter wave antenna is applied to an electronic device, the millimeter wave antenna is generally disposed within an accommodation space inside the electronic device, and due to a relatively low transmittance of a screen of the electronic device to the millimeter wave signal, requirements of antenna radiation performance cannot be met. Alternatively, the screen of the electronic device has a relatively low transmittance to external millimeter wave signals. As a result, poor communication performances of 5G millimeter waves are often incurred.
A display screen assembly, an antenna assembly, and an electronic device are provided in the present disclosure.
According to a first aspect, a display screen assembly is provided. The display screen includes a display screen body and a radio-wave transparent structure. The display screen body has a first transmittance to a radio frequency (RF) signal in a preset frequency band. The radio-wave transparent structure is carried on the display screen body and covers at least part of the display screen body. The display screen assembly has a second transmittance to the RF signal in the preset frequency band in a region corresponding to the radio-wave transparent structure, and the second transmittance is greater than the first transmittance.
According to a second aspect, an antenna assembly is provided. The antenna assembly includes an antenna module and the display screen assembly provided in the first aspect. The antenna module is configured to emit and receive, within a preset range, the RF signal in the preset frequency band. The radio-wave transparent structure in the display screen assembly is at least partially located within the preset range.
According to a third aspect, an electronic device is provided. The electronic device includes the antenna assembly provided in the second aspect.
According to a fourth aspect, an electronic device is provided. The electronic device includes a first antenna module, a display screen body, and a first radio-wave transparent structure. The first antenna module is configured to emit and receive, within a first preset direction range, a first radio frequency (RF) signal in a first frequency band. The display screen body is spaced apart from the first antenna module and at least partially located within the first preset direction range, and has a first transmittance to the first RF signal in the first frequency band. The first radio-wave transparent structure is carried on the display screen body. The first radio-wave transparent structure covers at least part of the display screen body and is at least partially located within the first preset direction range. The electronic device has a second transmittance to the first RF signal in the first frequency band in a region corresponding to the first radio-wave transparent structure, and the second transmittance is greater than the first transmittance.
To describe technical solutions in the implementations of the present disclosure more clearly, the accompanying drawings required for describing the implementations will be briefly introduced below. Apparently, the accompanying drawings in the following description merely illustrate some implementations of the present disclosure. Those of ordinary skill in the art may also obtain other drawings based on these accompanying drawings without creative efforts.
In a first aspect, a display screen assembly is provided. The display screen assembly includes a display screen body and a radio-wave transparent structure. The display screen body has a first transmittance to a radio frequency (RF) signal in a preset frequency band. The radio-wave transparent structure is carried on the display screen body and covers at least part of the display screen body. The display screen assembly has a second transmittance to the RF signal in the preset frequency band in a region corresponding to the radio-wave transparent structure, and the second transmittance is greater than the first transmittance.
In a first implementation of the first aspect, the display screen body includes a display screen and a cover plate stacked with the display screen, and the radio-wave transparent structure is disposed on the cover plate.
In a second implementation of the first aspect, the display screen body includes an array substrate. The array substrate includes a substrate and multiple thin film transistors arranged in an array on the substrate. The thin film transistor includes a gate, a gate insulating layer, a channel layer, a source, and a drain. The gate is disposed on one side of the substrate. The gate insulating layer covers the gate. The channel layer is disposed on the gate insulating layer and corresponds to the gate. The source and the drain are disposed at opposite ends of the channel layer and spaced apart from each other, and the source and the drain are both connected to the channel layer. The radio-wave transparent structure is a single-layer structure, and the radio-wave transparent structure is disposed in the same layer as the gate or disposed in the same layer as the source and the drain.
In a third implementation of the first aspect, the display screen body includes an array substrate. The array substrate includes a substrate and multiple thin film transistors arranged in an array on the substrate. The thin film transistor includes a gate, a gate insulating layer, a channel layer, a source, and a drain. The gate is disposed on one side of the substrate. The gate insulating layer covers the gate. The channel layer is disposed on the gate insulating layer and corresponds to the gate. The source and the drain are disposed at opposite ends of the channel layer and spaced apart from each other, and the source and the drain are both connected to the channel layer. The radio-wave transparent structure includes a first radio-wave transparent layer and a second radio-wave transparent layer which are stacked and spaced apart from each other. The first radio-wave transparent layer is disposed in the same layer as the gate, and the second radio-wave transparent layer is disposed in the same layer as the source and the drain.
In a fourth implementation of the first aspect, the display screen body includes an array substrate. The array substrate includes a substrate and multiple thin film transistors arranged in an array on the substrate. The thin film transistor includes a light-shielding layer, a first insulating layer, a channel layer, a source, a drain, a second insulating layer, a gate, and a planarization layer. The light-shielding layer is disposed on one side of the substrate. The first insulating layer covers the light-shielding layer. The channel layer is disposed on the first insulating layer and corresponds to the light-shielding layer. The source and the drain are disposed at opposite ends of the channel layer and spaced apart from each other. The source and the drain are both connected to the channel layer. The second insulating layer covers the source and the drain. The gate is disposed on the second insulating layer. The radio-wave transparent structure is a single-layer structure. The radio-wave transparent structure is disposed in the same layer as one of the light-shielding layer and the gate or disposed in the same layer as the source and the drain.
In a fifth implementation of the first aspect, the display screen body includes an array substrate. The array substrate includes a substrate and multiple thin film transistors arranged in an array on the substrate. The thin film transistor includes a light-shielding layer, a first insulating layer, a channel layer, a source, a drain, a second insulating layer, a gate, and a planarization layer. The light-shielding layer is disposed on one side of the substrate. The first insulating layer covers the light-shielding layer. The channel layer is disposed on the first insulating layer and corresponds to the light-shielding layer. The source and the drain are disposed at opposite ends of the channel layer and spaced apart from each other. The source and the drain are both connected to the channel layer. The second insulating layer covers the source and the drain. The gate is disposed on the second insulating layer. The radio-wave transparent structure includes a first radio-wave transparent layer and a second radio-wave transparent layer which are stacked and spaced apart from each other. The first radio-wave transparent layer is disposed in the same layer as one of the light-shielding layer, the gate, and the source, and the second radio-wave transparent layer is disposed in the same layer as another one of the light-shielding layer, the gate, and the source.
In a sixth implementation of the first aspect, the display screen body includes an array substrate. The array substrate includes a substrate and multiple thin film transistors arranged in an array on the substrate. The thin film transistor includes a light-shielding layer, a first insulating layer, a channel layer, a source, a drain, a second insulating layer, a gate, and a planarization layer. The light-shielding layer is disposed on one side of the substrate. The first insulating layer covers the light-shielding layer, the channel layer is disposed on the first insulating layer and corresponds to the light-shielding layer. The source and the drain are disposed at opposite ends of the channel layer and spaced apart from each other. The source and the drain are both connected to the channel layer. The second insulating layer covers the source and the drain. The gate is disposed on the second insulating layer. The radio-wave transparent structure includes a first radio-wave transparent layer, a second radio-wave transparent layer, and a third radio-wave transparent layer which are stacked and spaced apart from one another. The first radio-wave transparent layer is disposed in the same layer as the light-shielding layer. The second radio-wave transparent layer is disposed in the same layer as the source and drain. The third light-shielding layer is disposed in the same layer as the gate.
In a seventh implementation of the first aspect, the display screen assembly further includes an array substrate including a pixel electrode. The pixel electrode is a semiconductor made of a transparent metal oxide material. The radio-wave transparent structure is at least partially disposed in the same layer as the pixel electrode and made of the same material as the pixel electrode.
In an eighth implementation of the first aspect, the display screen assembly further includes an array substrate and a color filter substrate which are arranged opposite to and spaced apart from each other. The radio-wave transparent structure includes a first radio-wave transparent layer and a second radio-wave transparent layer. The first radio-wave transparent layer is disposed on the array substrate. The second radio-wave transparent layer is disposed on the color filter substrate.
In a ninth implementation of the display screen assembly according to the eighth implementation of the first aspect, the color filter substrate includes a pixel electrode. The array substrate includes a common electrode. The first radio-wave transparent layer is disposed in the same layer as the pixel electrode. The second radio-wave transparent layer is disposed in the same layer as the common electrode.
In a tenth implementation of the first aspect, the display screen body includes a substrate and light-emitting elements arranged in an array on the substrate. The light-emitting element includes a first electrode, a light-emitting layer, and a second electrode. The first electrode is disposed on the substrate. The light-emitting layer is disposed on one side of the first electrode away from the substrate. The second electrode is disposed on one side of the light-emitting layer away from the first electrode. The first electrode is configured to load a first voltage, the second electrode is configured to load a second voltage. The light-emitting layer is configured to emit light under action of the first voltage and the second voltage. The radio-wave transparent structure is a single-layer structure. The radio-wave transparent structure is disposed in the same layer as one of the first electrode and the second electrode.
In an eleventh implementation of the first aspect, the display screen body includes a substrate and light-emitting elements arranged in an array on the substrate. The light-emitting element includes a first electrode, a light-emitting layer, and a second electrode. The first electrode is disposed on the substrate. The light-emitting layer is disposed on one side of the first electrode away from the substrate. The second electrode is disposed on one side of the light-emitting layer away from the first electrode. The first electrode is configured to load a first voltage. The second electrode is configured to load a second voltage. The light-emitting layer is configured to emit light under action of the first voltage and the second voltage. The radio-wave transparent structure includes a first radio-wave transparent layer and a second radio-wave transparent layer. The first radio-wave transparent layer is disposed in the same layer as the first electrode. The second radio-wave transparent layer is disposed in the same layer as the second electrode.
In a twelfth implementation of the display screen assembly according to the tenth or eleventh implementation of the first aspect, the first electrode is an anode and the second electrode is a cathode. Alternatively, the first electrode is the cathode and the second electrode is the anode.
In a thirteenth implementation of the display screen assembly according to any of the third, fifth, eighth, and eleventh implementations of the first aspect, the first radio-wave transparent structure defines a through hole. An orthographic projection of the second radio-wave transparent structure on the first radio-wave transparent structure falls within the through hole.
In a fourteenth implementation of the first aspect, the display screen body includes an inner surface and an outer surface opposite to the inner surface, and the radio-wave transparent structure is disposed on the inner surface.
In fifteenth implementation of the first aspect, the display screen body includes a screen body and an extending portion bent and extended from a periphery of the screen body. The radio-wave transparent structure is disposed corresponding to one of the screen body and the extending portion.
In a second aspect, an antenna assembly is provide. The antenna assembly includes an antenna module and the display screen assembly provided in the first aspect or any of the first to fifteenth implementations of the first aspect, the antenna module is configured to emit and receive, within a preset range, the RF signal in the preset frequency band. The radio-wave transparent structure in the display screen assembly is at least partially located within the preset range.
In a third aspect, an electronic device is provided. The electronic device includes the antenna assembly provided in the second aspect.
In a fourth aspect, an electronic device is provided. The electronic device includes a first antenna module, a display screen body, and a first radio-wave transparent structure. The first antenna module is configured to emit and receive, within a first preset direction range, a first radio frequency (RF) signal in a first frequency band. The display screen body is spaced apart from the first antenna module and at least partially located within the first preset direction range, and has a first transmittance to the first RF signal in the first frequency band. The first radio-wave transparent structure is carried on the display screen body. The first radio-wave transparent structure covers at least part of the display screen body and is at least partially located within the first preset direction range. The electronic device has a second transmittance to the first RF signal in the first frequency band in a region corresponding to the first radio-wave transparent structure, and the second transmittance is greater than the first transmittance.
In a first implementation of the fourth aspect, the electronic device further includes a second antenna module and a second radio-wave transparent structure. The second antenna module is spaced apart from the first antenna module and located outside the first preset direction range. The second antenna module is configured to emit and receive, within a second preset direction range, a second RF signal in a second frequency band. The display screen body is spaced apart from the second antenna module and at least partially located within the second preset direction range. A part of the display screen body within the second preset direction range has a third transmittance to the second RF signal in the second frequency band. The second radio-wave transparent structure is carried on the display screen body. The second radio-wave transparent structure is at least partially located within the second preset direction range. The electronic device has a fourth transmittance to the second RF signal in the second frequency band in a region corresponding to the second radio-wave transparent structure, and the fourth transmittance is greater than the third transmittance.
In a second implementation of the electronic device according to the first implementation of the fourth aspect, the display screen body includes a screen body and an extending portion bent and extended from a periphery of the screen body. The first antenna module and the second antenna module are both disposed corresponding to one of the screen body or the extending portion. Alternatively, the first antenna module is disposed corresponding to the screen body, and the second antenna module is disposed corresponding to the extending portion.
The technical solutions in the implementations of the present disclosure are clearly and completely described in the following with reference to the accompanying drawings in the implementations of the present disclosure. Apparently, the described implementations are merely a part of rather than all the implementations of the present disclosure. All other implementations obtained by those of ordinary skill in the art based on the implementations of the present disclosure without creative efforts are within the scope of the present disclosure.
The radio-wave transparent structure 120 may be directly disposed on the display screen body 110. Alternatively, the radio-wave transparent structure 120 may be disposed on the display screen body 110 via a bearing film, or may be embedded in the display screen body 110. In case that the radio-wave transparent structure 120 is disposed on the display screen body 110 via the bearing film, the bearing film may be, but not limited to, a plastic (for example, polyethylene terephthalate (PET)) film, a flexible circuit board, a printed circuit board, or the like. The PET film may be, but not limited to, a color film, an explosion-proof film, or the like. The radio-wave transparent structure 120 may cover part of the display screen body 110. Alternatively, the radio-wave transparent structure 120 may cover the entire display screen body 110. The display screen body 110 includes an inner surface and an outer surface opposite to the inner surface. The radio-wave transparent structure 120 can be disposed on the inner surface of the display screen body 110 or on the outer surface of the display screen body 110.
The display screen body 110 may refer to a component that performs a display function in an electronic device. Generally, the display screen body 110 can include a display screen 100a and a cover plate 100b stacked with the display screen 100a. The display screen 100a can be a liquid crystal display or an organic light-emitting diode display. The cover plate 100b can be disposed on the display screen 100a for protecting the display screen 100a. In this implementation, the radio-wave transparent structure 120 is disposed on the cover plate 100b. The radio-wave transparent structure 120 can be disposed on one surface of the cover plate 100b close to the display screen 100a. Alternatively, the radio-wave transparent structure 120 can also be disposed on the other surface of the cover plate 100b away from the display screen 100a. Alternatively, the radio-wave transparent structure 120 can be embedded in the cover plate 100b. Because the cover plate 100b is an independent component, when the radio-wave transparent structure 120 is disposed on the surface of the cover plate 100b close to the display screen 100a or on the other surface of the cover plate 100b away from the display screen 100a, the difficulty of combining the radio-wave transparent structure 120 with the display screen body 110 can be reduced. Referring to
The radio-wave transparent structure 120 can have any of the following characteristics: single-frequency single-polarization, single-frequency dual-polarization, dual-frequency dual-polarization, dual-frequency single-polarization, wide-band single-polarization, wide-band dual-polarization, and the like. Accordingly, the radio-wave transparent structure 120 can also have any of the following characteristics: dual-frequency resonance response, single-frequency resonance response, wide-frequency resonance response, multi-frequency resonance response, and the like. The radio-wave transparent structure 120 may be made of a metal material or a non-metal conductive material.
On the one hand, the radio-wave transparent structure 120 on the display screen body 110 can be excited by the RF signal in the preset frequency band, and the radio-wave transparent structure 120 can generate an RF signal in the same frequency band as the preset frequency band according to the RF signal in the preset frequency band. The RF signal generated by the radio-wave transparent structure 120 can pass through the dielectric substrate 110 and radiate into free space. Because the radio-wave transparent structure 120 can be excited to generate the RF signal in the same frequency band as the preset frequency band, more RF signals in the preset frequency band can pass through the dielectric substrate 110 to radiate into the free space. In other words, the display screen assembly 100 has an improved transmittance to the RF signal in the preset frequency band with aid of the radio-wave transparent structure 120.
On the other hand, the display screen assembly 100 includes the radio-wave transparent structure 120 and the display screen body 110. In this case, a dielectric constant of the display screen assembly 100 can be equivalent to a dielectric constant of a preset material. The preset material has a relatively high transmittance to the RF signal in the preset frequency band, and an equivalent wave impedance of the preset material is equal to or approximately equal to an equivalent wave impedance in the free space.
The RF signal may be, but is not limited to, an RF signal in the millimeter wave band or the terahertz band. Currently, in 5th generation (5G) wireless communication systems, under the protocol of the 3GPP 38.101, frequency bands for 5G NR (new radio) are mainly divided into two different frequency ranges: frequency range 1 (FR1) and frequency range 2 (FR2). The FR1 band has a frequency range of 450 MHz˜6 GHz, and is also known as the “sub-6 GHz” band. The FR2 band has a frequency range of 24.25 GHz˜52.6 GHz, and belongs to the millimeter wave (mmWave) band. 3GPP Release 15 specifies that the current 5G millimeter wave bands include bands n257 (26.5 GHz˜29.5 GHz), n258 (24.25 GHz˜27.5 GHz), n261 (27.5 GHz˜28.35 GHz), and n260 (37 GHz˜40 GHz).
In the display screen assembly 100 provided in the present disclosure, the radio-wave transparent structure 120 is carried on the display screen body 110. The transmittance to the RF signal in the preset frequency band is improved with aid of the radio-wave transparent structure 120. In case that the display screen assembly 100 is applied to an electronic device 1, influence of the display screen assembly 100 on radiation performance of an antenna module disposed inside the electronic device 1 can be reduced, as such, communication performance of the electronic device 1 can be improved.
In an example, the radio-wave transparent structure 120 has a transmittance to visible light (“light transmittance” for short) greater than a preset transmittance, so that the display screen body 110 can display normally. The preset transmittance may be but is not limited to 80%. Because the radio-wave transparent structure 120 is applied to the display screen body 110 and the light transmittance of the radio-wave transparent structure 120 is greater than the preset transmittance, the display screen assembly 100 provided with the radio-wave transparent structure 120 has a relatively high transmittance, as such, there will be no great impact on the normal displaying of the display screen assembly 100.
In an implementation, the thin film transistor 111b may further include a planarization layer 580. The planarization layer 580 covers the source 540 and the drain 550.
In the display screen assembly 100 provided in the present disclosure, the radio-wave transparent structure 120 is carried on the display screen body 110. The transmittance to the RF signal in the preset frequency band is improved with aid of the radio-wave transparent structure 120. In case that the display screen assembly 100 is applied to the electronic device 1, influence of the display screen assembly 100 on the radiation performance of the antenna module disposed inside the electronic device 1 can be reduced, as such, the communication performance of the electronic device 1 can be improved. As an example, in the display screen assembly 100 provided in the present disclosure, the radio-wave transparent structure 120 is disposed in the same layer as the gate 510. As such, during preparation, the radio-wave transparent structure 120 can be prepared in the same process as the gate 510, thereby simplifying the preparation process.
In an implementation, the thin film transistor 111b may further include a planarization layer 580. The planarization layer 580 covers the source 540, the drain 550, and the radio-wave transparent structure 120.
In the display screen assembly 100 provided in the present disclosure, the radio-wave transparent structure 120 is carried on the display screen body 110. The transmittance to the RF signal in the preset frequency band is improved with aid of the radio-wave transparent structure 120. In case that the display screen assembly 100 is applied to the electronic device 1, the influence of the display screen assembly 100 on the radiation performance of the antenna module disposed inside the electronic device 1 can be reduced, as such, the communication performance of the electronic device 1 can be improved. As an example, in the display screen assembly 100 provided in the present disclosure, the radio-wave transparent structure 120 is disposed in the same layer as the source 540 and the drain 550. As such, during preparation, the radio-wave transparent structure 120 can be prepared in the same process as the source 540 and the drain 550, thereby simplifying the preparation process.
In the display screen assembly 100 provided in the present disclosure, the radio-wave transparent structure 120 is carried on the display screen body 110. The transmittance to the RF signal in the preset frequency band can be improved with aid of the radio-wave transparent structure 120. In case that the display screen assembly 100 is applied to the electronic device 1, the influence of the display screen assembly 100 on the radiation performance of the antenna module disposed inside the electronic device 1 can be reduced, as such, the communication performance of the electronic device 1 can be improved. As an example, in the display screen assembly 100 provided in the present disclosure, the first radio-wave transparent layer 121 is in the same process as the gate 510, and the second radio-wave transparent layer 122 is in the same process as the source 540. As such, during preparation, the first radio-wave transparent layer 121 can be prepared in the same process as the gate 510, and the second radio-wave transparent layer 122 can be prepared in the same process as the source 540 and the drain 550, thereby simplifying the preparation process.
In the display screen assembly 100 provided in the present disclosure, the radio-wave transparent structure 120 is carried on the display screen body 110. The transmittance to the RF signal in the preset frequency band can be improved with aid of the radio-wave transparent structure 120. In case that the display screen assembly 100 is applied to the electronic device 1, the influence of the display screen assembly 100 on the radiation performance of the antenna module disposed inside the electronic device 1 can be reduced, as such, the communication performance of the electronic device 1 can be improved. The radio-wave transparent structure 120 is disposed in the same layer as the gate 510 or the light-shielding layer 590. Alternatively, the radio-wave transparent structure 120 is disposed in the same layer as the source 540 and the drain 550. As such, the preparation process can be simplified.
In the display screen assembly 100 provided in the present disclosure, the radio-wave transparent structure 120 is carried on the display screen body 110. The transmittance to the RF signal in the preset frequency band can be improved with aid of the radio-wave transparent structure 120. In case that the display screen assembly 100 is applied to the electronic device 1, the influence of the display screen assembly 100 on the radiation performance of the antenna module disposed inside the electronic device 1 can be reduced, as such, the communication performance of the electronic device 1 can be improved. Further, the first radio-wave transparent layer 121 is disposed in the same layer as one of the light-shielding layer 590, the gate 510, and the source 540, and the second radio-wave transparent layer 122 is disposed in the same layer as another one of the light-shielding layer 590, the gate 510, which can simplify the preparation process.
In other implementations, when the radio-wave transparent structure 120 includes the first radio-wave transparent layer 121 and the second radio-wave transparent layer 122 spaced apart from each other, the first radio-wave transparent layer 121 can serve as the light-shielding layer 590 of the display screen assembly 100. The light-shielding layer 590 is used to prevent the thin film transistor 111b from malfunction caused by light incident into the channel layer 530 from one surface of the substrate 111a away from the light-shielding layer 590.
In an implementation, the color filter substrate 112 may include a pixel electrode 610. The array substrate 111 may include a common electrode 1121. The first radio-wave transparent layer 121 is disposed in the same layer as the pixel electrode 610. The second radio-wave transparent layer 122 is disposed in the same layer as the common electrode 1121. The pixel electrode 610 and the common electrode 1121 cooperate to control the orientation of the liquid crystal molecules in the liquid crystal layer 113.
The operating principle of the light-emitting element 700 is introduced below. In an implementation, the first electrode 710 is an anode and the second electrode 720 is a cathode. In this case, the first electrode 710 is used to generate electron holes, the second electrode 720 is used to generate electrons. The electrons generated by the second electrode 720 and the electron holes generated by the first electrode 710 can be combined in the light-emitting layer 730 to generate light. In another implementation, the first electrode 710 can be a cathode, and the second electrode 720 can be an anode. As an example, the light-emitting element 700 can further include a hole injection-and-transport layer 740 and an electron injection-and-transport layer 750. When the first electrode 710 is the anode and the second electrode 720 is the cathode, the hole injection-and-transport layer 740 is disposed between the first electrode 710 and the light-emitting layer 730 to transport the electron holes generated by the first electrode 710 to the light-emitting layer 730. The electron injection-and-transport layer 750 is disposed between the second electrode 720 and the light-emitting layer 730 to transport the electrons generated by the second electrode 720 to the light-emitting layer 730.
In an implementation, the first electrode 710 can be an anode and the second electrode 720 can be a cathode. In another implementation, the first electrode 710 is the cathode and the second electrode 720 is the anode. As an example, the light-emitting element 700 can further include a hole injection-and-transport layer 740 and an electron injection-and-transport layer 750. When the first electrode 710 is the anode and the second electrode 720 is the cathode, the hole injection-and-transport layer 740 is disposed between the first electrode 710 and the light-emitting layer 730 to transport the electron holes generated by the first electrode 710 to the light-emitting layer 730. The electron injection-and-transport layer 750 is disposed between the second electrode 720 and the light-emitting layer 730 to transport the electrons generated by the second electrode 720 to the light-emitting layer 730. It is noted that, an insulating layer 761 can be disposed between the first radio-wave transparent 121 and the second radio-wave transparent 122.
It is noted that, in case that the radio-wave transparent structure 120 includes the first radio-wave transparent 121 and the second radio-wave transparent 122 spaced apart from each other, the first radio-wave transparent 121 and the second radio-wave transparent 122 are operable to be coupled with each other. As such, the display screen assembly 100 has a greater transmittance to the RF signal in the preset frequency band in the region corresponding to the radio-wave transparent structure 120 than a display screen assembly without the radio-wave transparent structure 120.
Referring to
In an implementation, the first dielectric layer 111 and the second dielectric layer 112 are made of glass which generally has a dielectric constant falling within a range from 6 to 7.6. When the preset frequency band is in a range of 20 GHz to 35 GHz, the first patch 1211 generally has a size falling within a range from 0.5 mm to 0.8 mm. A solid part of the mesh-grid structure of the second radio-wave transparent layer 128 generally has a width falling within a range from 0.1 mm to 0.5 mm. One period generally has a length falling within a range from 1.5 mm to 3 mm. When the radio-wave transparent structure 120 is applied to the display screen assembly of the electronic device, a distance between an upper surface of the antenna module 200 and an inner surface of the display screen assembly is generally greater than or equal to zero, and in an implementation, the distance is generally from 0.5 mm to 1.2 mm.
In this implementation, the third radio-wave transparent layer 123 can include multiple second patches 1231 arranged in an array, and each second patch 1231 can be in a circular shape. In an example, each second patch 1231 may have a diameter D falling within a range from 0.5 mm to 0.8 mm. It is noted that, the third radio-wave transparent layer 123 may be identical to the first radio-wave transparent layer 121 in structure.
In an example, the RF chip 230 is further away from the radio-wave transparent structure 120 than the first antenna radiator 250. An output terminal of the RF chip 230 used to output the excitation signal is disposed at a side of the insulating substrate 240 away from the radio-wave transparent structure 120. That is, the RF chip 230 is disposed close to the second surface 240b of the insulating substrate 240 and away from the first surface 240a of the insulating substrate 240.
In an example, each first antenna radiator 250 includes at least one feeding point 251. Each feeding point 251 is electrically coupled with the RF chip 230 via the transmission lines. A distance between each feeding point 251 and a center of the first antenna radiator 250 corresponding to the feeding point 251 is greater than a preset distance. An adjustment of a position of the feeding point 251 can change an input impedance of the first antenna radiator 250. In this implementation, by setting the distance between each feeding point 251 and the center of the first antenna radiator 250 corresponding to the feeding point 251 to be greater than the preset distance, the input impedance of the first antenna radiator 250 may be adjusted. The input impedance of the first antenna radiator 250 is adjusted to enable the input impedance of the first antenna radiator 250 to match an output impedance of the RF chip 230. When the input impedance of the first antenna radiator 250 matches the output impedance of the RF chip 230, a reflection amount of the excitation signal generated by the RF signal is minimal.
In an example, the RF chip 230 is further away from the radio-wave transparent structure 120 than the first antenna radiator 250. The output terminal of the RF chip 230 used to output the excitation signal is disposed at the side of the insulating substrate 240 away from the radio-wave transparent structure 120.
In an example, each first antenna radiator 250 includes at least one feeding point 251. Each feeding point 251 is electrically coupled with the RF chip 230 via the transmission lines. A distance between the feeding point 251 and the center of the first antenna radiator 250 corresponding to each feeding point 251 is smaller than the preset distance.
In this implementation, the second antenna radiator 260 is embedded in the insulating substrate 240. The second antenna radiator 260 is spaced apart from the first antenna radiator 250, and the second antenna radiator 260 is coupled with the first antenna radiator 250 to form a stacked patch antenna. When the second antenna radiator 260 is coupled with the first antenna radiator 250 to form the stacked patch antenna, the first antenna radiator 250 is electrically connected with the RF chip 230, while the second antenna radiator 260 is not electrically connected with the RF chip 230. The second antenna radiator 260 couples with the millimeter wave signal radiated by the first antenna radiator 250 and generates a new millimeter wave signal according to the millimeter wave signal radiated by the first antenna radiator 250 coupled with the second antenna radiator 260.
Further, an example that the antenna module 200 is manufactured through HDI process is given below for illustration. The insulating substrate 240 includes a core layer 241 and multiple wiring layers 242 stacked on opposite sides of the core layer 241. The core layer 241 is an insulating layer, and an insulating layer 243 is generally sandwiched between each two adjacent wiring layers 242. The wiring layer 242 disposed at a side of the core layer 241 close to the radio-wave transparent structure 120 and furthest away from the core layer 241 has an outer surface forming the first surface 240a of the insulating substrate 240. The wiring layer 242 disposed at a side of the core layer 241 away from the radio-wave transparent structure 120 and furthest away from the core layer 241 has an outer surface forming the second surface 240b of the insulating substrate 240. The first antenna radiator 250 is disposed on the first surface 240a. The second antenna radiator 260 is embedded in the insulating substrate 240. That is, the second antenna radiator 260 can be disposed on other wiring layers 122 which are used for arranging antenna radiators, and the second antenna radiator 260 is not disposed on a surface of the insulating substrate 240.
In this implementation, an example that the insulating substrate 240 is of an eight-layer structure is given below for illustration. It is noted that, in other implementations, other number of layers of the insulating substrate 240 may be adopted. The insulating substrate 240 includes the core layer 241, a first wiring layer TM1, a second wiring layer TM2, a third wiring layer TM3, a fourth wiring layer TM4, a fifth wiring layer TMS, a sixth wiring layer TM6, a seventh wiring layer TM7, and an eighth wiring layer TM8. The first wiring layer TM1, the second wiring layer TM2, the third wiring layer TM3, and the fourth wiring layer TM4 are sequentially stacked on a surface of the core layer 241. Alternatively, the first wiring layer TM1, the second wiring layer TM2, the third wiring layer TM3, and the fourth wiring layer TM4 are indirectly stacked together, and the fourth wiring layer TM4 is disposed on a surface of the core layer 241 away from the RF chip 230. The first wiring layer TM1 is disposed further away from the core layer 241 than the fourth wiring layer TM4. A surface of the first wiring layer TM1 away from the core layer 241 forms at least a part of the first surface 240a of the insulating substrate 240. The fifth wiring layer TM5, the sixth wiring layer TM6, the seventh wiring layer TM7, and the eighth wiring layer TM8 are sequentially stacked together on another same surface of the core layer 241. Alternatively, the fifth wiring layer TM5, the sixth wiring layer TM6, the seventh wiring layer TM7, and the eighth wiring layer TM8 are indirectly stacked together, and the fifth wiring layer TM5 is disposed on a surface of the core layer 241 close to the RF chip 230. The eighth wiring layer TM8 is disposed further away from the core layer 241 than the fifth wiring layer TM5. A surface of the eighth wiring layer TM8 away from the core layer 241 is the second surface 240b of the insulating substrate 240. Normally, the first wiring layer TM1, the second wiring layer TM2, the third wiring layer TM3, and the fourth wiring layer TM4 form wiring layers 122 that can be provided with the antenna radiators. The fifth wiring layer TM5 is a ground layer on which a ground electrode is provided. The sixth wiring layer TM6, the seventh wiring layer TM7, and the eighth wiring layer TM8 form wiring layers in which a feeding network and control lines of the antenna module 200 are provided. In another implementation, the sixth wiring layer TM6 and the seventh wiring layer TM7 form wiring layers on which the feeding network and the control lines of the antenna module 200 are provided. The RF chip 230 is soldered on the eighth wiring layer TM8. In this implementation, the first antenna radiator 250 is disposed on the surface of the first wiring layer TM1 away from the core layer 241 (alternatively, the at least one first antenna radiator 250 is disposed on the third surface 240a), and the second antenna radiator 260 may be disposed in the third wiring layer TM3. As an examples illustrated in
In an example, the first wiring layer TM1, the second wiring layer TM2, the third wiring layer TM3, the fourth wiring layer TM4, the sixth wiring layer TM6, the seventh wiring layer TM7, and the eighth wiring layer TM8 in the insulating substrate 240 are all electrically connected to the ground layer in the fifth wiring layer TM5. In an implementation, the first wiring layer TM1, the second wiring layer TM2, the third wiring layer TM3, the fourth wiring layer TM4, the sixth wiring layer TM6, the seventh wiring layer TM7, and the eighth wiring layer TM8 in the insulating substrate 240 all define through holes, and each through hole is filled with a metal material to be electrically coupled with the ground layer in the fifth wiring layer TM5, such that components in each wiring layer 242 are grounded.
In an example, the seventh wiring layer TM7 and the eighth wiring layer TM8 are further provided with power lines 271 and control lines 272. The power lines 271 and the control lines 272 are electrically coupled with the RF chip 230 respectively. The power lines 271 are used to provide the RF chip 230 with required power, and the control lines 272 are used to transmit control signals to the RF chip 230 to control the operation of the RF chip 230.
As a non-limiting implementation, the antenna module 200 includes a patch antenna or a stacked antenna in the foregoing. It is noted that the antenna module 200 may further include a dipole antenna, a magnetic electric dipole antenna, a quasi-Yagi antenna, and the like. The antenna assembly 10 may include a combination consisting of at least one or more of a patch antenna, a stacked antenna, a dipole antenna, a magnetic dipole antenna, or a quasi-Yagi antenna. Further, the dielectric substrates of the M×N antenna assemblies 10 may be connected to each other into an integrated structure.
An electronic device 1 is further provided in the present disclosure.
The first radio-wave transparent structure 125 may be the radio-wave transparent structure described in any of the foregoing implementations. In an example, the electronic device 1 can further include a frame 80 and a battery cover 90. The frame 80 is used to carry the display screen body 110. The battery cover 90 and the display screen body 110 cooperate to define an accommodating space for accommodating the frame 80 and other electronic elements.
In a non-limiting example, as illustrated in
Both of the first radio-wave transparent structure 125 and the second radio-wave transparent structure 126 can be the radio-wave transparent structure described in any of the forgoing implementations. In an example, the display screen body 110 includes a screen body 410 and an extending portion 420 bent and extended from a periphery of the screen body 110. Both of the first antenna module 210 and the second antenna module 220 are disposed corresponding to the screen body 410, that is, the screen body 410 is at least partially within the first preset direction range and at least partially within the second preset direction range. The first antenna module 210 being disposed corresponding to the screen body 410 means that the screen body 410 is at least partially disposed within a range where the first antenna module 210 can emit or receive RF signals. The second antenna module 220 being disposed corresponding to the screen body 410 means that screen body 410 is at least partially disposed within a range where the second antenna module 220 can emit or receive RF signals.
Although the implementations of the present disclosure have been illustrated and described above, it can be understood that the above implementations are illustrative and cannot be understood as limitations on the present disclosure. Those skilled in the art can make changes, modifications, replacements, and variations for the above implementations within the scope of the present disclosure, and these improvements and modifications are also considered to fall into the protection scope of the present disclosure.
Number | Date | Country | Kind |
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201910588888.8 | Jun 2019 | CN | national |
The present application is a continuation of International Application No. PCT/CN2020/096942, filed on Jun. 19, 2020, which claims priority to Chinese Patent Application No. 201910588888.8, filed on Jun. 30, 2019, the entire disclosures of which are incorporated herein by reference.
Number | Date | Country | |
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Parent | PCT/CN2020/096942 | Jun 2020 | US |
Child | 17535322 | US |