CN114967263A - Display device - Google Patents
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- CN114967263A CN114967263A CN202210602470.XA CN202210602470A CN114967263A CN 114967263 A CN114967263 A CN 114967263A CN 202210602470 A CN202210602470 A CN 202210602470A CN 114967263 A CN114967263 A CN 114967263A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/13731—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on a field-induced phase transition
- G02F1/13737—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on a field-induced phase transition in liquid crystals doped with a pleochroic dye
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a display device, which comprises a display module and a dimming module, wherein the dimming module is positioned on one side of the display module, which is far away from a light-emitting surface, and along the direction of the light-emitting surface, the dimming module comprises a first substrate, a first electrode layer, a dye liquid crystal layer, a second electrode layer and a second substrate which are sequentially stacked, the dye liquid crystal layer comprises liquid crystal molecules and dye molecules, the display device also comprises an antenna module, and the antenna module and the second electrode layer are arranged on the same layer or positioned on one side of the second electrode layer, which is far away from the display module; and/or, along the thickness direction of the dimming module, a gap exists between the antenna module and the first electrode layer, and a gap exists between the antenna module and the second electrode layer. The display device provided by the invention prevents the first electrode layer and the second electrode layer from shielding signals transmitted and received by the antenna module, thereby improving the antenna performance while ensuring the appearance effect of the display device.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display device.
Background
With the development of science and technology, display devices such as mobile phones have become indispensable tools for life.
As one of important parts, a display device case has been increasingly demanded for its appearance. In order to enrich the appearance effect of the display device, the display device housing is provided with dimming glass capable of adjusting the light transmittance, but the metal layer in the dimming glass can shield the electromagnetic wave signal of the internal antenna of the display device, and the performance of the antenna is affected.
Disclosure of Invention
The invention provides a display device, which is used for improving the performance of an antenna while ensuring the appearance effect of the display device.
The invention provides a display device, which comprises a display module and a dimming module, wherein the display module is connected with the dimming module;
the dimming module is positioned on one side of the display module, which is far away from the light-emitting surface;
the dimming module comprises a first substrate, a first electrode layer, a dye liquid crystal layer, a second electrode layer and a second substrate which are sequentially stacked along the direction departing from the light emergent surface;
the dye liquid crystal layer comprises liquid crystal molecules and dye molecules;
the display device also comprises an antenna module, and the antenna module and the second electrode layer are arranged on the same layer or positioned on one side of the second electrode layer away from the display module; and/or, along the thickness direction of the dimming module, a gap exists between the antenna module and the first electrode layer, and a gap exists between the antenna module and the second electrode layer.
According to the display device provided by the embodiment of the invention, the dimming module is arranged on one side of the display module, which is far away from the light-emitting surface, so that the dimming function is realized, and the appearance effect of the display device is enriched; meanwhile, the antenna module and the second electrode layer are arranged on the same layer or arranged on one side, far away from the display module, of the second electrode layer, and/or a gap is formed between the antenna module and the first electrode layer and between the antenna module and the second electrode layer along the thickness direction of the dimming module, so that the first electrode layer and the second electrode layer are prevented from shielding signals received and transmitted by the antenna module, and the service performance of the antenna module is improved while the dimming function is met.
It should be understood that the statements in this section do not necessarily identify key or critical features of the embodiments of the present invention, nor do they necessarily limit the scope of the invention. Other features of the present invention will become apparent from the following description.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view taken along line A-A' of FIG. 1;
fig. 3 is a schematic structural diagram of another display device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another display device according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another display device according to an embodiment of the present invention;
fig. 6 is a schematic cross-sectional structure diagram of a display device according to an embodiment of the present invention;
FIG. 7 is an enlarged partial schematic view of FIG. 1 at B;
fig. 8 is a schematic cross-sectional view of another display device according to an embodiment of the invention;
fig. 9 is a schematic cross-sectional view of another display device according to an embodiment of the invention;
fig. 10 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
FIG. 11 is a schematic cross-sectional view taken along line C-C' of FIG. 10;
fig. 12 is a schematic cross-sectional view of another display device according to an embodiment of the invention;
FIG. 13 is a schematic diagram of a display panel according to another embodiment of the present invention;
FIG. 14 is a schematic cross-sectional view taken along line D-D' of FIG. 13;
fig. 15 is a schematic cross-sectional view of another display device according to an embodiment of the invention;
fig. 16 is a schematic cross-sectional view of another display device according to an embodiment of the invention;
fig. 17 is a schematic cross-sectional view of another display device according to an embodiment of the invention;
FIG. 18 is a schematic cross-sectional view of another display device according to an embodiment of the present invention;
fig. 19 is a schematic cross-sectional view of another display device according to an embodiment of the invention;
fig. 20 is a schematic cross-sectional view of another display device according to an embodiment of the invention;
fig. 21 is a schematic cross-sectional view of another display device according to an embodiment of the invention;
fig. 22 is a schematic cross-sectional structure diagram of another display device according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention, and fig. 2 is a schematic structural diagram of a cross section of fig. 1 along a direction a-a', as shown in fig. 1 and fig. 2, the display device according to the embodiment of the present invention includes a display module 10 and a dimming module 11, and the dimming module 11 is located on a side of the display module 10 away from a light emitting surface. Along the direction of deviating from the light-emitting surface, the light-adjusting module 11 includes a first substrate 111, a first electrode layer 112, a dye liquid crystal layer 113, a second electrode layer 114, and a second substrate 115, which are sequentially stacked, and the dye liquid crystal layer 113 includes liquid crystal molecules 21 and dye molecules 22. The display device further includes an antenna module 12, the antenna module 12 and the second electrode layer 114 are disposed on the same layer or on a side of the second electrode layer 114 away from the display module 11; and/or, along the thickness direction of the dimming module 11, a gap exists between the antenna module 12 and the first electrode layer 112, and a gap exists between the antenna module 12 and the second electrode layer 114.
The display device may be the mobile phone shown in fig. 1, or any electronic product with a display function, including but not limited to the following categories: the touch screen display system comprises a television, a notebook computer, a desktop display, a tablet computer, a digital camera, an intelligent bracelet, intelligent glasses, a vehicle-mounted display, medical equipment, industrial control equipment, a touch interaction terminal and the like, and the embodiment of the invention is not particularly limited in this respect.
The display module 10 can be any module with a display function, for example, the display device is a mobile phone, and the display module 10 can be a main body of the mobile phone, but is not limited thereto.
The dimming module 11 is used for realizing a dimming function, so that the appearance is richer and more gorgeous. The dimming module 11 is disposed on a side of the display module 10 away from the light-emitting surface, so as to prevent the dimming module 11 from affecting the display. For example, the display device is taken as a mobile phone, and the dimming module 11 can be disposed on the rear cover of the mobile phone to enrich the appearance effect of the rear cover of the mobile phone, but is not limited thereto.
With continued reference to fig. 1 and fig. 2, the dimming module 11 includes a first substrate 111 and a second substrate 115 disposed opposite to each other, and the first substrate 111 and the second substrate 115 may function as a protection, wherein the first substrate 111 and the second substrate 115 may be transparent substrates, such as glass substrates, so that light can enter the dye liquid crystal layer 113 through the first substrate 111 and the second substrate 115, thereby implementing a dimming function.
It should be noted that the materials of the first substrate 111 and the second substrate 115 may be set according to requirements, for example, the first substrate 111 and the second substrate 115 are made of tempered glass, so that the dimming module 11 has higher strength, and further the impact strength of the dimming module 11 is improved, and the dimming module can adapt to some use scenarios that are easy to be impacted, which is not limited in the embodiment of the present invention.
With continued reference to fig. 1 and fig. 2, a first electrode layer 112, a second electrode layer 114 and a dye liquid crystal layer 113 located between the first electrode layer 112 and the second electrode layer 114 are disposed between the first substrate 111 and the second substrate 115, wherein the dye liquid crystal layer 113 includes liquid crystal molecules 21 and dye molecules 22, and by applying different voltages to the first electrode layer 112 and the second electrode layer 114, electric fields with different intensities can be generated between the first electrode layer 112 and the second electrode layer 114. The liquid crystal molecules 21 drive the dye molecules 22 to rotate under the action of the generated electric field so as to control the transmittance of light, thereby realizing the modulation of the light.
The dye molecules 22 may be dichroic dye molecules or multicolor dye molecules, but are not limited thereto. Taking the dye molecule 22 as a dichroic dye molecule, the dye molecule 22 can absorb light in the incident light, which has a polarization direction parallel to the long axis of the dye molecule 22, i.e., the absorption axis. It can be understood that under the control of the electric fields with different intensities, the angles at which the liquid crystal molecules 21 drive the dye molecules 22 to rotate are different, and when the light absorption axis of the dye molecules 22 and the light direction present different angles, the absorption degree of the dye molecules 22 to the light is also different. Therefore, by controlling the magnitude of the voltage applied between the first electrode layer 112 and the second electrode layer 114, the light transmittance of the dye liquid crystal layer 113 can be controlled, and the light modulation function can be realized.
It should be noted that the first electrode layer 112 and the second electrode layer 114 can be transparent electrode layers, such as Indium Tin Oxide (ITO) layers, so that light can enter the dye liquid crystal layer 113 through the first electrode layer 112 and the second electrode layer 114, thereby implementing a dimming function, but the invention is not limited thereto, and those skilled in the art can set the configuration according to actual needs.
In addition, the arrangement range and the shape pattern of the first electrode layer 112 and the second electrode layer 114 can be set according to actual requirements, and it can be understood that the range of the first electrode layer 112 and the second electrode layer 114 determines the range of the dimming region, and therefore, the arrangement range and the shape pattern of the first electrode layer 112 and the second electrode layer 114 can be designed according to the required appearance effect.
It should be noted that, in addition to the above structure, the light modulation module 11 may further include other hierarchical structures, for example, the dye liquid crystal layer 113 is provided with a first alignment layer 116 on a side close to the first electrode layer 112, the dye liquid crystal layer 113 is provided with a second alignment layer 117 on a side close to the second electrode layer 114, and the first alignment layer 116 and the second alignment layer 117 function to align the dye liquid crystal layer 113, wherein the first alignment layer 116 and the second alignment layer 117 may be Polyimide (PI), but are not limited thereto.
For another example, a sealant 118 is further disposed between the first substrate 111 and the second substrate 115, the sealant 118 is disposed around the dye liquid crystal layer 113 to seal the dye liquid crystal layer 113, and a person skilled in the art can set a specific structure of the light modulation module 11 according to actual requirements.
With continued reference to fig. 1 and 2, the display device further includes an antenna module 12, wherein the antenna module 12 is configured to transmit and receive signals to implement a wireless communication function.
Optionally, as shown in fig. 2, the antenna module 12 and the second electrode layer 114 are disposed on the same layer, or the antenna module 12 is located on one side of the second electrode layer 114, which is far away from the display module 10, so as to prevent the second electrode layer 114 from shielding signals received and transmitted by the antenna module 12, and further improve the usability of the antenna module 12 while meeting the dimming function.
Optionally, a gap may also be formed between the antenna module 12 and the first electrode layer 112 along the thickness direction of the dimming module 11, and a gap may also be formed between the antenna module 12 and the second electrode layer 114, that is, along the thickness direction of the dimming module 11, the antenna module 12 and the first electrode layer 112 and the second electrode layer 114 are not overlapped with each other, so as to prevent the second electrode layer 114 and the second electrode layer 114 from shielding signals received and transmitted by the antenna module 12, and further, while meeting the dimming function, the service performance of the antenna module 12 is improved.
According to the display device provided by the embodiment of the invention, the dimming module 11 is arranged on one side of the display module 10, which is far away from the light-emitting surface, so that the dimming function is realized, and the appearance effect of the display device is enriched; meanwhile, the antenna module 12 and the second electrode layer 114 are arranged on the same layer or the antenna module 12 is arranged on one side of the second electrode layer 114 far away from the display module 10, and/or a gap is arranged between the antenna module 12 and the first electrode layer 112 along the thickness direction of the dimming module 11, and a gap is arranged between the antenna module 12 and the second electrode layer 114, so that the first electrode layer 112 and the second electrode layer 114 are prevented from shielding signals transmitted and received by the antenna module 12, and the service performance of the antenna module 12 is improved while the dimming function is satisfied.
With continuing reference to fig. 1 and fig. 2, optionally, the antenna module 12 is located on a side of the second electrode layer 114 away from the display module 10, the antenna module 12 includes a feeding network 121 and a radiation patch 122 connected to the feeding network 121, along a thickness direction of the dimming module 11, the second electrode layer 114 covers the antenna module 12, and the second electrode layer 114 is grounded.
The feeding network 121 is configured to transmit the radio frequency signal to each radiation patch 122, so that the radiation patch 122 radiates the radio frequency signal outwards. The feeding network 121 may be distributed in a tree and includes a plurality of branches, one branch providing a radio frequency signal to one radiating patch 122, but is not limited thereto, and those skilled in the art can set the feeding network according to actual requirements.
With reference to fig. 2, in the thickness direction of the dimming module 11, the second electrode layer 114 is disposed to cover the antenna module 12, and the second electrode layer 114 is connected to a ground signal (GND signal), so that the radio frequency signal can be transmitted between the feeding network 121 and the second electrode layer 114, thereby implementing an antenna function.
With continued reference to fig. 1, optionally, the feeding network 121 comprises a feeding structure 23, the feeding structure 23 comprises a feeding subsection 231, a first grounding subsection 232 and a second grounding subsection 233, the first grounding subsection 232 and the second grounding subsection 233 are respectively located at two sides of the feeding subsection 231, the first grounding subsection 232 at least partially overlaps the second electrode layer 114, and the second grounding subsection 233 at least partially overlaps the second electrode layer 114 along the thickness direction of the first substrate 10. The feeding branch 231 is used for transmitting radio frequency signals to the radiation patch 122, and the feeding branch 231, the first grounding branch 232 and the second grounding branch 233 form a Coplanar waveguide (CPW) structure, which has the characteristics of small volume, light weight and planar structure, so that the CPW structure has the advantages of being convenient to obtain linear polarization, circular polarization, dual polarization, multi-band operation and the like, and meanwhile, the CPW structure has the performance advantages over microstrip lines in a millimeter wave band as a microwave planar transmission structure with excellent performance and convenient processing.
Further, by disposing the first grounding branch 232 and the second grounding branch 233 to at least partially overlap with the second electrode layer 114 along the thickness direction of the dimming module 11, it can be ensured that signals on the first grounding branch 232 and the second grounding branch 233 are coupled to the second electrode layer 114 through the overlapped portion, thereby ensuring transmission of radio frequency signals.
With continued reference to fig. 1, the antenna module 12 may alternatively adopt a parallel feeding manner, in which the energy transferred to each radiating patch 122 is equal, and the design is simple and easy to implement.
Fig. 3 is a schematic structural diagram of another display device according to an embodiment of the present invention, as shown in fig. 3, optionally, the antenna module 12 may also adopt a series feeding manner, at this time, the energy transmitted to each radiation patch 122 may be unequal, so that the energy transmitted to each radiation patch 122 may be controlled and adjusted according to actual requirements, the weighted distribution of the feeding energy may be realized, and finally, the adjustment of the beam minor lobe may be realized, and meanwhile, the antenna module 12 adopts the series feeding manner, which may reduce the size of the antenna module 12, so that the occupied space ratio of the antenna module 12 is relatively small.
Optionally, the antenna module 12 is located on a side of the second electrode layer 114 away from the display module 10, and the antenna module 12 includes a loop antenna, a dipole antenna, a slot antenna, or an inverted-F antenna.
Fig. 4 is a schematic structural diagram of another display device according to an embodiment of the present invention, as shown in fig. 4, for example, the antenna module 12 may be a Loop antenna (Loop antenna), where the Loop antenna is a structure in which a metal wire is wound into a certain shape, such as a circle, a square, a triangle, and the like, and two ends of a conductor are used as output ends, and the antenna is wound for multiple turns (such as a spiral or overlapping winding), which is called a multi-turn Loop antenna. The loop antenna has the advantages of simple structure, small volume and good stability, the number of turns of the loop antenna can be flexibly set according to the inductance required by near field communication, and the specific structure of the loop antenna is not limited in the embodiment of the invention.
Fig. 5 is a schematic structural diagram of another display device according to an embodiment of the present invention, and as shown in fig. 5, the antenna module 12 may also be a dipole antenna, where the dipole antenna is formed by a pair of symmetrically disposed conductors, two ends of the conductors, which are close to each other, are respectively connected to a feeder line, and when the dipole antenna is used as a transmitting antenna, an electrical signal is fed into the conductors from the center of the antenna; when used as a receiving antenna, the received signal is also taken from the conductor at the center of the antenna. The dipole antenna has simple structure and wide application.
Optionally, the antenna module 12 may further adopt a slot antenna or an inverted-F antenna (IFA antenna), wherein the loop antenna, the dipole antenna, the slot antenna, and the inverted-F antenna do not need a ground metal (GND) to participate in radiation, and the antenna module has a simpler structural design and is more compact in size.
It should be noted that the antenna module 12 is not limited to the above antenna types, and in other embodiments, the antenna module 12 may also adopt other types of antennas, so as to improve the flexibility of the application scenario of the antenna module 12, and those skilled in the art can set the antenna module according to actual requirements.
Fig. 6 is a schematic cross-sectional structure view of a display device according to an embodiment of the invention, as shown in fig. 6, optionally, the second electrode layer 114 covers the antenna module 12 along a thickness direction of the dimming module 11.
Specifically, as shown in fig. 6, when the antenna module 12 is an antenna type that does not require a grounding metal to participate in radiation, such as a loop antenna, a dipole antenna, a slot antenna, or an inverted-F antenna, the antenna module 12 may be covered by the second electrode layer 114 along the thickness direction of the display device, so that signal energy is reflected upward by the second electrode layer 114, and the directivity of signal transmission is stronger, which is helpful for improving the performance of the antenna module 12.
Optionally, the antenna module 12 includes a metal mesh structure or a transparent structure.
Specifically, fig. 7 is a schematic diagram of a partial enlarged structure at B in fig. 1, and as shown in fig. 7, the antenna module 12 may be a metal mesh structure, wherein since the metal material has good conductivity and low resistivity, the signal loss may be reduced by using the metal material for the antenna module 12.
The antenna module 12 may be made of gold (Au), silver (Ag), or copper (Cu) to ensure better conductivity, but is not limited thereto, and those skilled in the art can set the antenna module according to actual requirements.
Further, the antenna module 12 is set to be a grid structure, which can improve the light transmittance of the antenna module 12, so as to reduce the influence of the antenna module 12 on the dimming effect of the dimming module 11 below the antenna module.
In other embodiments, optionally, the antenna module 12 may also adopt a transparent structure, so that the antenna module has a higher light transmittance, thereby reducing the influence of the antenna module 12 on the dimming effect of the dimming module 11 below the antenna module.
The antenna module 12 may be made of Indium Tin Oxide (ITO) material to ensure the light transmittance of the antenna module 12, but the embodiment of the invention is not limited thereto.
Fig. 8 is a schematic cross-sectional structure view of another display device according to an embodiment of the invention, as shown in fig. 8, optionally, the antenna module 12 and the second electrode layer 114 are disposed on the same layer, and the antenna module 12 and the second electrode layer 114 are insulated from each other.
By arranging the antenna module 12 and the second electrode layer 114 in the same layer, the second electrode layer 114 is prevented from shielding signals transmitted and received by the antenna module 12, and meanwhile, the arrangement of a metal layer can be reduced, so that the purposes of reducing the production cost and reducing the thickness of the display device are achieved. In addition, the antenna module 12 may be made of the same material as the second electrode layer 114, so that the antenna module 12 and the second electrode layer 114 can be manufactured in the same process, thereby reducing the manufacturing time.
Further, the antenna module 12 is insulated from the second electrode layer 114, so that the antenna module 12 and the second electrode layer 114 do not interfere with each other.
With continuing reference to fig. 1, 3 and 8, optionally, the antenna module 12 includes a feeding network 121 and a radiation patch 122 connected to the feeding network 121, the first electrode layer 112 covers the antenna module 12 along the thickness direction of the dimming module 11, and the first electrode layer 112 is grounded.
As shown in fig. 1 and 3, the feeding network 121 is configured to transmit a radio frequency signal to each radiation patch 122, so that the radiation patch 122 radiates the radio frequency signal outwards. As shown in fig. 8, the antenna module 12 is covered by the first electrode layer 112 along the thickness direction of the dimming module 11, and the first electrode layer 112 is connected to a ground signal (GND signal), so that a radio frequency signal can be transmitted between the feeding network 121 and the second electrode layer 114, thereby implementing an antenna function.
With continued reference to fig. 4 and 5, the antenna module 12 may optionally include a loop antenna, a dipole antenna, a slot antenna, or an inverted-F antenna.
When the antenna module 12 and the second electrode layer 114 are disposed on the same layer, the antenna module 12 may be a loop antenna, a dipole antenna, a slot antenna, or an inverted-F antenna, so that a ground metal (GND) is not needed to participate in radiation, and the antenna module is simpler in structural design and more compact in size.
It should be noted that the antenna module 12 is not limited to the above antenna types, and in other embodiments, the antenna module 12 may also adopt other types of antennas, so as to improve the flexibility of the application scenario of the antenna module 12, and those skilled in the art can set the antenna module according to actual requirements.
Fig. 9 is a schematic cross-sectional structure view of another display device according to an embodiment of the invention, as shown in fig. 9, optionally, the first electrode layer 112 covers the antenna module 12 along a thickness direction of the dimming module 11.
Specifically, as shown in fig. 9, when the antenna module 12 and the second electrode layer 114 are disposed on the same layer, and the antenna module 12 is an antenna type that does not require a grounding metal to participate in radiation, such as a loop antenna, a dipole antenna, a slot antenna, or an inverted-F antenna, the antenna module 12 can be covered by disposing the first electrode layer 112 along the thickness direction of the display device, so that the signal energy is reflected upward by the first electrode layer 112, the signal transmission directivity is stronger, and the performance of the antenna module 12 is improved.
Fig. 10 is a schematic structural view of another display panel according to an embodiment of the present invention, and fig. 11 is a schematic structural view of a cross section of fig. 10 along a direction C-C', as shown in fig. 10 and fig. 11, optionally, the display device according to an embodiment of the present invention further includes a color ink layer 13, along a thickness direction of the dimming module 11, the color ink layer 13 covers the antenna module 12, and the color ink layer 13 is located on a side of the antenna module 12 away from the display module 10.
Specifically, since the antenna module 12 and the second electrode layer 114 are disposed on the same layer, the second electrode layer 114 is not disposed at the position of the antenna module 12, so that the dimming module 11 at the position of the antenna module 12 cannot achieve the required dimming effect. In this embodiment, the color ink layer 13 is disposed on a side of the antenna module 12 away from the display module 10, so that the antenna module 12 has a rich appearance effect.
The pattern shape of the color ink layer 13 is not limited to the hexagonal stacking pattern shown in fig. 10, and in other embodiments, the pattern shape of the color ink layer 13 may also be set to be logo or other patterns, which is not limited in the embodiment of the present invention.
With reference to fig. 11, optionally, the color ink layer 13 may be disposed on a side of the second substrate 115 away from the antenna module 12, which is simple in process and easy to implement.
Fig. 12 is a schematic cross-sectional structure view of another display device according to an embodiment of the invention, as shown in fig. 12, optionally, the color ink layer 13 may also be disposed on a side of the second substrate 115 close to the antenna module 12, so that the second substrate 115 can protect the color ink layer 13 and prevent the color ink layer 13 from being damaged or oxidized by the outside.
Fig. 13 is a schematic structural diagram of another display panel according to an embodiment of the present invention, and fig. 14 is a schematic structural diagram of a cross section of fig. 13 along a direction D-D', optionally, a gap exists between the antenna module 12 and the first electrode layer 112 and between the antenna module 12 and the second electrode layer 114 along a thickness direction of the light adjusting module 11, and the antenna module 12 is located on a side of the dye liquid crystal layer 113 away from the second electrode layer 114.
Specifically, along the thickness direction of the light modulation module 11, there is a gap between the antenna module 12 and the first electrode layer 112 by setting up, and there is a gap between the antenna module 12 and the second electrode layer 114, namely along the thickness direction of the light modulation module 11, the antenna module 12 and the first electrode layer 112 and the second electrode layer 114 are not overlapped, so as to avoid the second electrode layer 114 and the second electrode layer 114 to play a shielding role to the signal that the antenna module 12 receives and sends, and then when satisfying the light modulation function, improve the service performance of the antenna module 12.
The setting range of the antenna module 12 can be set according to actual requirements, for example, as shown in fig. 13 and 14, hollow structures can be set in the first electrode layer 112 and the second electrode layer 114, and the hollow structures on the first electrode layer 112 and the second electrode layer 114 are overlapped along the thickness direction of the light modulation module 11. Set up antenna module 12 in hollow out construction position department, along the thickness direction of adjusting luminance module 11 promptly, hollow out construction's projection covers antenna module 12, and the antenna signal can be followed hollow out construction and located external radiation to avoid second electrode layer 114 and second electrode layer 114 to play the shielding effect to the signal of antenna module 12 receiving and dispatching.
It can be understood that, along the thickness direction of the dimming module 11, because the antenna module 12 is not overlapped with the first electrode layer 112 and the second electrode layer 114, the antenna module 12 may be disposed at any position of the film layer of the display device, for example, as shown in fig. 14, the antenna module 12 may be disposed inside the display module 10, taking the display device as a mobile phone as an example, the display module 10 may be a main body portion of the mobile phone, and then the antenna module 12 is disposed inside the main body portion of the mobile phone, so as to provide a large enough disposing space for the antenna module 12, so that the antenna module 12 is not limited to a single-layer antenna, and may also be disposed as an antenna with a three-dimensional structure, and the disposing flexibility of the antenna module 12 is improved, but is not limited thereto.
In other embodiments, the antenna module 12 may be disposed on the same layer as the first electrode layer 112, or disposed on other film layers, and those skilled in the art can set the antenna module according to actual requirements.
With reference to fig. 13 and fig. 14, optionally, the display device according to the embodiment of the invention further includes a color ink layer 13, and the color ink layer 13 is located outside the area where the first electrode layer 112, the second electrode layer 114 and the antenna module 12 are located along the thickness direction of the dimming module 11.
Specifically, as shown in fig. 13 and 14, hollow structures may be disposed on the first electrode layer 112 and the second electrode layer 114, and the hollow structures on the first electrode layer 112 and the second electrode layer 114 are overlapped along the thickness direction of the light modulation module 11. The first electrode layer 112 and the second electrode layer 114 are not disposed at the hollow structure, so that the dimming module 11 at the hollow structure cannot achieve the required dimming effect. In this embodiment, the color ink layer 13 is disposed at the hollow structure, so that the hollow structure has a rich appearance effect.
Further, the color ink layer 13 may be located outside the area where the antenna module 12 is located, so as to prevent the color ink layer 13 from affecting the transmission and reception of the antenna module 12, thereby improving the usability of the antenna module 12. Meanwhile, the color ink layer 13 may be located outside the area where the antenna module 12 is located, and may also show the antenna module 12, thereby achieving a desired pattern effect. For example, if the antenna module 12 is designed as a logo, the logo can be shown in the color ink layer 13.
The pattern of the antenna module 12 is not limited to a logo pattern, and those skilled in the art can set the pattern shape of the antenna module 12 according to actual requirements.
It should be noted that the specific setting range of the color ink layer 13 is not limited to the range provided in the foregoing embodiment, and in other embodiments, the color ink layer 13 may also fill all the hollow structures, that is, along the thickness direction of the dimming module 11, the color ink layer 13 may also cover the antenna module 12, and at this time, the hollow structures may be set to a desired pattern shape, which is not limited in the embodiment of the present invention.
Fig. 15 is a schematic cross-sectional structure diagram of another display device according to an embodiment of the present invention, fig. 16 is a schematic cross-sectional structure diagram of another display device according to an embodiment of the present invention, as shown in fig. 15 and fig. 16, optionally, the display device according to an embodiment of the present invention further includes a first liquid crystal layer 14, the first liquid crystal layer 14 and the dye liquid crystal layer 113 are disposed in the same layer, and the first liquid crystal layer 14 and the antenna module 12 are at least partially overlapped. A first barrier structure 15 is disposed between the first liquid crystal layer 14 and the dye liquid crystal layer 113 along a direction parallel to the plane of the display module 10.
Specifically, as shown in fig. 15 and 16, when the antenna module 12 and the second electrode layer 114 are disposed on the same layer, or a gap exists between the antenna module 12 and the first electrode layer 112 along the thickness direction of the light modulation module 11, and a gap exists between the antenna module 12 and the second electrode layer 114, the light modulation module 11 does not perform light modulation at the position of the antenna module 12, at this time, the first liquid crystal layer 14 on the same layer as the dye liquid crystal layer 113 may be disposed at the position of the antenna module 12, and the first liquid crystal layer 14 has a larger dielectric constant, which is helpful for realizing the miniaturized design of the antenna module 12. Meanwhile, the dye liquid crystal layer 113 and the first liquid crystal layer 14 are separated by the first blocking structure 15, so that the liquid crystal molecules 21 in the dye liquid crystal layer 113 are prevented from influencing the deflection angle of the liquid crystal molecules 21 in the first liquid crystal layer 14 when rotating under the action of a generated electric field, and the dielectric constant of the first liquid crystal layer 14 is changed, so that the dielectric constant of the first liquid crystal layer 14 is distributed unevenly, and the performance of the antenna module 12 is influenced.
With reference to fig. 15 and 16, optionally, the first liquid crystal layer 14 only includes liquid crystal molecules 21 and is not provided with dye molecules 22, so that the first liquid crystal layer 14 has a suitable dielectric constant, and the dielectric constant distribution is relatively uniform, thereby preventing the dye molecules 22 from affecting the signal transmission and reception of the antenna module 12, and facilitating to improve the performance of the antenna module 12, but not limited thereto.
In other embodiments, dye molecules may also be disposed in the first liquid crystal layer 14, that is, the structure of the first liquid crystal layer 14 is the same as that of the dye liquid crystal layer 113, so that the preparation process is simpler and easier to implement.
It should be noted that the setting range of the first liquid crystal layer 14 can be set according to actual requirements, for example, the first liquid crystal layer 14 covers the antenna module 12 along the thickness direction of the dimming module 11, but is not limited thereto, and those skilled in the art can set according to actual requirements.
In addition, the specific material structure of the first blocking structure 15 may also be set according to actual requirements, for example, the first blocking structure 15 adopts frame glue, but is not limited thereto.
Fig. 17 is a schematic cross-sectional structure view of another display device according to an embodiment of the present invention, and fig. 18 is a schematic cross-sectional structure view of another display device according to an embodiment of the present invention, as shown in fig. 17 and fig. 18, optionally, the display device according to an embodiment of the present invention further includes a cavity structure 16, the cavity structure 16 is disposed on the same layer as the dye liquid crystal layer 113, the cavity structure 16 and the antenna module 12 are at least partially overlapped, and a second blocking structure 17 is disposed between the cavity structure 16 and the dye liquid crystal layer 113 along a direction parallel to a plane of the display module 10.
Specifically, as shown in fig. 17 and 18, when the antenna module 12 and the second electrode layer 114 are disposed on the same layer, or a gap exists between the antenna module 12 and the first electrode layer 112 along the thickness direction of the light modulation module 11, and a gap exists between the antenna module 12 and the second electrode layer 114, the light modulation module 11 does not perform light modulation at the position of the antenna module 12, at this time, the cavity structure 16 on the same layer as the dye liquid crystal layer 113 may be disposed at the position of the antenna module 12, and the cavity structure 16 has a smaller dielectric constant, which is helpful for reducing the signal loss of the antenna module 12. Meanwhile, the dye liquid crystal layer 113 and the cavity structure 16 are separated by the second barrier structure 17, so that the dye liquid crystal layer 113 is prevented from flowing into the cavity structure 16, and the dielectric constant of the cavity structure 16 is not distributed uniformly to affect the performance of the antenna module 12. And, the second barrier structure 17 may also play a supporting role to make the thickness of the dye liquid crystal layer 113 uniform, thereby ensuring a dimming effect.
It should be noted that the setting range of the cavity structure 16 can be set according to actual requirements, for example, the cavity structure 16 covers the antenna module 12 along the thickness direction of the light adjusting module 11, but is not limited thereto, and those skilled in the art can set according to actual requirements.
In addition, the specific material structure of the second blocking structure 17 may also be set according to actual requirements, for example, the second blocking structure 17 adopts frame glue, but is not limited thereto.
With continued reference to fig. 2 and fig. 6, optionally, the display device provided in the embodiment of the present invention further includes a cover plate 18, where the cover plate 18 is located on a side of the antenna module 12 away from the display module 10.
Specifically, the cover plate 18 is disposed on a side of the antenna module 12 away from the display module 10, so as to protect the antenna module 12.
The cover plate 18 may be made of a transparent glass cover plate, for example, the cover plate 18 may be a transparent glass cover plate, so that light can enter the dye liquid crystal layer 113 through the cover plate 18, the light adjusting function is realized, and the cover plate has high strength, so that the impact strength of the cover plate 18 is improved, and the cover plate can adapt to some use scenes which are easy to be impacted.
Fig. 19 is a schematic cross-sectional structure view of another display device according to an embodiment of the present invention, and fig. 20 is a schematic cross-sectional structure view of another display device according to an embodiment of the present invention, as shown in fig. 19 and fig. 20, optionally, the display device according to an embodiment of the present invention further includes a color ink layer 13, along a thickness direction of the light adjusting module 11, the color ink layer 13 covers the antenna module 12, and the color ink layer 13 is located on a side of the antenna module 12 away from the display module 10.
Specifically, in the present embodiment, the color ink layer 13 is disposed on a side of the antenna module 12 away from the display module 10, so that the antenna module 12 has a rich appearance effect.
With continued reference to fig. 19, further, the display device further includes a first liquid crystal layer 14, the first liquid crystal layer 14 is disposed on the same layer as the dye liquid crystal layer 113, and the first liquid crystal layer 14 at least partially overlaps the antenna module 12. A first barrier structure 15 is disposed between the first liquid crystal layer 14 and the dye liquid crystal layer 113 along a direction parallel to the plane of the display module 10.
Specifically, as shown in fig. 19, when the area where the antenna module 12 is located is decorated by the color ink layer 13, the dimming module 11 does not need to perform dimming, and at this time, the first liquid crystal layer 14 on the same layer as the dye liquid crystal layer 113 may be disposed at the location where the antenna module 12 is located, and the first liquid crystal layer 14 has a relatively large dielectric constant, which is beneficial to implementing a miniaturized design of the antenna module 12. Meanwhile, the dye liquid crystal layer 113 and the first liquid crystal layer 14 are separated by the first blocking structure 15, so that the liquid crystal molecules 21 in the dye liquid crystal layer 113 are prevented from influencing the deflection angle of the liquid crystal molecules 21 in the first liquid crystal layer 14 when rotating under the action of a generated electric field, and the dielectric constant of the first liquid crystal layer 14 is changed, so that the dielectric constant of the first liquid crystal layer 14 is distributed unevenly, and the performance of the antenna module 12 is influenced.
The specific structures and arrangement ranges of the first liquid crystal layer 14 and the first barrier structure 15 can refer to the above embodiments, and are not described herein again.
With reference to fig. 20, optionally, the display device further includes a cavity structure 16, the cavity structure 16 is disposed on the same layer as the dye liquid crystal layer 113, the cavity structure 16 and the antenna module 12 are at least partially overlapped, and a second blocking structure 17 is disposed between the cavity structure 16 and the dye liquid crystal layer 113 along a direction parallel to the plane of the display module 10.
Specifically, as shown in fig. 20, when the area where the antenna module 12 is located is decorated by the color ink layer 13, the dimming module 11 does not need to perform dimming, and at this time, the cavity structure 16 on the same layer as the dye liquid crystal layer 113 may be further disposed at the location where the antenna module 12 is located, where the cavity structure 16 has a smaller dielectric constant, which is beneficial to reducing the signal loss of the antenna module 12. Meanwhile, the dye liquid crystal layer 113 and the cavity structure 16 are separated by the second barrier structure 17 to prevent the dye liquid crystal layer 113 from flowing into the cavity structure 16, so that the dielectric constant distribution of the cavity structure 16 is not uniform to affect the performance of the antenna module 12. And, the second barrier structure 17 may also play a supporting role to make the thickness of the dye liquid crystal layer 113 uniform, thereby ensuring a dimming effect.
The specific structure and arrangement range of the cavity structure 16 and the second blocking structure 17 can refer to the above embodiments, and are not described herein again.
With continued reference to fig. 19 and 20, optionally, the color ink layer 13 may be disposed on a side of the cover plate 18 away from the antenna module 12, which is simple in process and easy to implement.
Fig. 21 is a schematic cross-sectional structure view of another display device according to an embodiment of the present invention, and fig. 22 is a schematic cross-sectional structure view of another display device according to an embodiment of the present invention, as shown in fig. 21 and fig. 22, optionally, the color ink layer 13 may also be disposed on a side of the cover plate 18 close to the antenna module 12, so that the cover plate 18 can protect the color ink layer 13 and prevent the color ink layer 13 from being damaged or oxidized from the outside.
The above-described embodiments should not be construed as limiting the scope of the invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made in accordance with design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (16)
1. A display device is characterized in that a display panel is provided,
comprises a display module and a light modulation module;
the dimming module is positioned on one side of the display module, which is far away from the light-emitting surface;
the dimming module comprises a first substrate, a first electrode layer, a dye liquid crystal layer, a second electrode layer and a second substrate which are sequentially stacked along the direction departing from the light emergent surface;
the dye liquid crystal layer comprises liquid crystal molecules and dye molecules;
the display device also comprises an antenna module, and the antenna module and the second electrode layer are arranged on the same layer or positioned on one side of the second electrode layer away from the display module; and/or, along the thickness direction of the dimming module, a gap exists between the antenna module and the first electrode layer, and a gap exists between the antenna module and the second electrode layer.
2. The display device according to claim 1,
the antenna module is positioned on one side of the second electrode layer, which is far away from the display module;
the antenna module comprises a feed network and a radiation patch connected with the feed network;
along the thickness direction of the dimming module, the second electrode layer covers the antenna module, and the second electrode layer is grounded.
3. The display device according to claim 1,
the antenna module is positioned on one side of the second electrode layer, which is far away from the display module;
the antenna module comprises a loop antenna, a dipole antenna, a slot antenna or an inverted-F antenna.
4. The display device according to claim 3,
and the second electrode layer covers the antenna module along the thickness direction of the dimming module.
5. The display device according to any one of claims 2 to 4,
the antenna module comprises a metal grid structure or a transparent structure.
6. The display device according to claim 1,
the antenna module and the second electrode layer are arranged on the same layer, and the antenna module and the second electrode layer are insulated.
7. The display device according to claim 6,
the antenna module comprises a feed network and a radiation patch connected with the feed network;
along the thickness direction of the dimming module, the first electrode layer covers the antenna module, and the first electrode layer is grounded.
8. The display device according to claim 6,
the antenna module comprises a loop antenna, a dipole antenna, a slot antenna or an inverted-F antenna.
9. The display device according to claim 8,
along the thickness direction of the dimming module, the first electrode layer covers the antenna module.
10. The display device according to claim 2, 3 or 6,
the display device further comprises a color ink layer;
along the thickness direction of the dimming module, the color ink layer covers the antenna module;
and the color ink layer is positioned on one side of the antenna module, which is far away from the display module.
11. The display device according to claim 1,
along the thickness direction of the dimming module, a gap exists between the antenna module and the first electrode layer, and a gap exists between the antenna module and the second electrode layer;
the antenna module is located on one side, far away from the second electrode layer, of the dye liquid crystal layer.
12. The display device according to claim 11,
the display device further comprises a color ink layer;
along the thickness direction of the dimming module, the color ink layer is located outside the area where the first electrode layer, the second electrode layer and the antenna module are located.
13. The display device according to claim 6 or 11,
the display device further comprises a first liquid crystal layer, the first liquid crystal layer and the dye liquid crystal layer are arranged in the same layer, and the first liquid crystal layer and the antenna module are at least partially overlapped;
and a first barrier structure is arranged between the first liquid crystal layer and the dye liquid crystal layer along the direction parallel to the plane of the display module.
14. The display device according to claim 6 or 11,
the display device further comprises a cavity structure, the cavity structure and the dye liquid crystal layer are arranged in the same layer, and the cavity structure and the antenna module are at least partially overlapped;
and a second barrier structure is arranged between the cavity structure and the dye liquid crystal layer along the direction parallel to the plane of the display module.
15. The display device according to any one of claims 2 to 4,
still include the apron, the apron is located antenna module assembly keeps away from one side of display module assembly.
16. The display device according to claim 15,
the display device further comprises a color ink layer;
along the thickness direction of the dimming module, the color ink layer covers the antenna module;
the color ink layer is positioned on one side of the antenna module, which is far away from the display module;
the display device further comprises a first liquid crystal layer, the first liquid crystal layer and the dye liquid crystal layer are arranged in the same layer, and the first liquid crystal layer and the antenna module are at least partially overlapped;
a first blocking structure is arranged between the first liquid crystal layer and the dye liquid crystal layer along a direction parallel to the plane of the display module;
alternatively, the first and second electrodes may be,
the display device also comprises a cavity structure, the cavity structure and the dye liquid crystal layer are arranged on the same layer, and the cavity structure and the antenna module are at least partially overlapped;
and a second barrier structure is arranged between the cavity structure and the dye liquid crystal layer along the direction parallel to the plane of the display module.
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| WO2024119679A1 (en) * | 2022-12-07 | 2024-06-13 | 武汉华星光电技术有限公司 | Display panel and mobile terminal |
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