CN212322235U - Touch display module and electronic equipment - Google Patents
Touch display module and electronic equipment Download PDFInfo
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- CN212322235U CN212322235U CN202021376001.3U CN202021376001U CN212322235U CN 212322235 U CN212322235 U CN 212322235U CN 202021376001 U CN202021376001 U CN 202021376001U CN 212322235 U CN212322235 U CN 212322235U
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Abstract
The utility model provides a touch-control display module assembly and electronic equipment relates to the communication technology field. This touch-control display module assembly includes: a display panel; the touch layer is arranged on the display panel and comprises a plurality of touch induction areas, and a spacing area is formed between every two adjacent touch induction areas; the optical film layer is arranged on the touch layer; the patch antenna units are arranged on the optical film layer, and the orthographic projection of each patch antenna unit on the plane where the touch layer is located in one of the interval areas. The utility model discloses a scheme is used for solving the problem that electronic equipment's antenna arrangement space is not enough to cause the antenna performance to descend.
Description
Technical Field
The utility model relates to the field of communication technology, in particular to touch-control display module assembly and electronic equipment.
Background
With the development of wireless communication technology, especially with the coming commercial use of 5G, the application scenarios of wireless communication systems are becoming more and more abundant, so that the requirement for an antenna, which is one of the key components of the wireless communication system, is becoming higher and higher. On one hand, in some application scenarios, the antenna needs to have conformality, concealment and safety so as to be integrated into wireless products such as automobiles, intelligent wearing, intelligent home furnishing and the like; on the other hand, as the transmission rate of the wireless communication system is higher and higher, the communication capacity is larger and larger, so that the carrier frequency is higher and higher, and the path loss caused by the higher carrier frequency is larger, and the array antenna is required to increase the gain to overcome the influence of the path loss.
Therefore, in order to achieve high gain and simultaneously achieve beam scanning or beam forming (beamforming), a phased array antenna (phased antenna) technology needs to be adopted, so that more and more antennas need to be integrated in a limited space, and particularly, as 5G and a mobile terminal (or other wireless communication products) full-screen are developed, the number of antennas is more and more, an effect of extremely full-screen is pursued, the space of the antennas is continuously compressed, and thus, the integration of a transparent antenna on the screen becomes more and more urgent.
The Antenna design scheme of the current mainstream millimeter wave mainly adopts the AIP (Antenna in package) technology and process, that is, the millimeter wave array Antenna, the RFIC (radio frequency integrated Circuit) and the PMIC (Power Management integrated Circuit) are integrated into one module. In practical application, the module is placed inside the electronic device, so that the module occupies the space of other internal antennas, and the performance of the antennas is reduced, thereby affecting the wireless experience of users.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a touch-control display module assembly and electronic equipment to solve the problem that the antenna performance descends because of the antenna arrangement space of present electronic equipment is not enough.
In order to solve the technical problem, the utility model discloses a realize like this:
in a first aspect, an embodiment of the present invention provides a touch display module, including:
a display panel;
the touch layer is arranged on the display panel and comprises a plurality of touch induction areas, and a spacing area is formed between every two adjacent touch induction areas;
the optical film layer is arranged on the touch layer;
the patch antenna units are arranged on the optical film layer, and the orthographic projection of each patch antenna unit on the plane where the touch layer is located in one of the interval areas.
Optionally, on the touch layer, no conductive structure is disposed in a target position, and the target position is an orthographic projection position of the patch antenna unit on a plane where the touch layer is located.
Optionally, the spacing areas corresponding to the patch antenna units are located in a first edge area and/or a second edge area of the touch layer;
the first edge area and the second edge area are two ends of the touch layer.
Optionally, the touch display module further includes:
a circuit board provided with an antenna integrated circuit, a touch integrated circuit and a screen integrated circuit;
a connector shared by the antenna integrated circuit, the touch integrated circuit, and the screen integrated circuit;
the antenna integrated circuit, the touch integrated circuit and the screen integrated circuit share a feed structure.
Optionally, the feeding structure comprises:
the first metal ground, the first substrate, the first conducting layer, the second substrate and the second conducting layer are arranged in a stacked mode;
wherein the first metal ground is connected to a second metal ground of the patch antenna unit;
the second conducting layer is a coplanar waveguide provided with a conductor strip, and a first end of the conductor strip is connected with the patch antenna unit;
a through hole corresponding to the second end of the conductor strip is formed in the second substrate;
and a strip line is arranged on the first conductive layer, one end of the strip line is connected with the antenna integrated circuit, and the strip line is electrically connected with the conductor strip through the via hole.
Optionally, the feed structure is a coaxial feed or a microstrip feed.
Optionally, the display panel is an AMOLED display panel.
Optionally, the circuit board is a flexible circuit board.
In a second aspect, the embodiment of the present invention further provides an electronic device, including the touch display module as described above.
Optionally, the electronic device further includes a switching circuit, and the switching circuit is respectively connected to the patch antenna units disposed at two ends of the touch layer.
Therefore, in the embodiment of the utility model provides an in, be provided with the touch-control layer on display panel, be provided with the optics rete on the touch-control layer, a plurality of paster antenna unit set up on the optics rete, and paster antenna unit is located one of them interval region at the planar orthographic projection of touch-control layer place, and this interval region is in between two adjacent touch-control induction areas, so, the antenna can not influence the touch-control and experience, and the touch-control layer is also less to the influence of antenna performance, has avoided the antenna to arrange the problem that the space is not enough to cause the antenna performance to descend.
Drawings
Fig. 1 is a schematic view of a stacked structure of a touch display module according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a touch display module according to an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2;
fig. 4 is a schematic diagram of a circuit board of a touch display module according to an embodiment of the present invention;
fig. 5 is a second schematic diagram of a circuit board of a touch display module according to an embodiment of the present invention;
fig. 6 is a second schematic structural view of a touch display module according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a feed structure in a touch display module according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to fig. 3, a touch display module according to an embodiment of the present invention includes:
a display panel 1;
the touch layer 2 is arranged on the display panel 1, the touch layer 2 comprises a plurality of touch induction areas 8, and a spacing area 9 is formed between every two adjacent touch induction areas 8;
the optical film layer is arranged on the touch layer 2;
the patch antenna units 4 are disposed on the optical film layer, and an orthogonal projection of each patch antenna unit 4 on a plane where the touch layer 2 is located in one of the spacing areas 9.
Therefore, the utility model discloses touch-control display module assembly is provided with touch-control layer 2 on display panel 1, be provided with the optics rete on touch-control layer 2, a plurality of paster antenna unit 4 set up on the optics rete, and paster antenna unit 4 is located one of them interval region 9 at the planar orthographic projection of touch-control layer 2 place, this interval region is in between two adjacent touch-control induction zone 8, so, the antenna can not influence touch-control experience, and the touch-control layer is also less to the influence of antenna performance, the problem of antenna performance decline has been avoided the antenna to arrange the space not enough to cause.
As shown in fig. 1, the laminated structure of the touch display module of this embodiment sequentially includes a foam layer 7, a display panel 1, a touch layer 2, a polarizer 3, a patch antenna unit 4, an optical adhesive 5, and a cover glass 6, where the polarizer 3 is used as an optical film layer, and the patch antenna unit 4 is disposed between the polarizer 3 and the optical adhesive 5. Of course, the optical cement 5 may be used as an optical film layer, and the patch antenna unit 4 may be disposed between the optical cement 5 and the cover glass 6. Specifically, the Optical cement 5 is OCA (Optical Clear Adhesive) or OCR (Optical Clear Resin). The display panel 1 includes an upper glass (i.e., a color filter substrate) and a lower glass. Because the polarizer 3, the cover glass 6 and the optical cement 5 are all non-conductive, the patch antenna unit 4 is located on the upper surface of the polarizer 3 or the optical cement 4, the antenna performance is better because the antenna is farther away from the metal of the display panel 1, the condition that the metal influences the performance when the antenna radiates outwards is avoided, and a condition is provided for realizing the antenna performance.
As shown in fig. 2, which is a conductive glass ITO pattern of the touch layer 2, and fig. 3, which is an enlarged view of a dotted frame region in fig. 2, an orthogonal projection of the patch antenna unit 4 on a plane where the touch layer 2 is located in one of the spacing regions 9. In this embodiment, 4 patch antenna units may constitute an antenna array, but other numbers of patch antenna units are also possible. In fig. 3, the mesh lines are touch sensing lines 10, which are etched lines, and do not contain ITO in the area where the mesh lines belong, so as to divide the ITO in the entire display area into horizontal and vertical blocks. In order to connect the horizontal blocks together, an insulating layer 11 and a jumper 12 are provided to connect the blocks at both sides together, so that the horizontal blocks and the vertical blocks are connected in series to realize a touch function. In this embodiment, the touch sensing areas 8 are grid-shaped touch sensing line 10 areas, and the patch antenna unit 4 is embedded between two horizontal touch sensing areas 8, so as not to affect the touch experience.
In order to improve the light transmittance, the patch antenna unit 4 is also of a Mesh structure, and the material thereof may be ITO, Metal Mesh or silver nanowires.
Optionally, as shown in fig. 3, no conductive structure is disposed in a target position on the touch layer 2, where the target position is an orthographic projection position of the patch antenna unit 4 on a plane where the touch layer 2 is located.
Thus, the antenna clearance area 305 is arranged in the orthographic projection position of the patch antenna unit 4 on the touch layer 2, namely, a conductive structure such as ITO is not arranged, so that the performance of the antenna is improved. The target position is provided with redundancy of a preset range, and the preset range can be determined according to the antenna performance and the touch performance.
In this embodiment, optionally, as shown in fig. 4, the touch display module further includes:
a circuit board 16 provided with an antenna integrated circuit 13, a touch integrated circuit 14, and a screen integrated circuit 15;
a connector 17 common to the antenna integrated circuit 13, the touch integrated circuit 14, and the screen integrated circuit 15;
a feeding structure shared by the antenna integrated circuit 13, the touch integrated circuit 14, and the screen integrated circuit 15.
Here, the touch display module is led out through a circuit board 16 (e.g., a flexible circuit board FPC), and the circuit board 16 is provided with a connector 17 (e.g., a BTB connector), the antenna integrated circuit 13, the touch integrated circuit 14, and the screen integrated circuit 15. The antenna integrated circuit 13, the touch integrated circuit 14, and the screen integrated circuit 15 may share the connector 17 and the feed structure LCP, so as to achieve the purpose of saving space effectively.
Preferably, the feeding structure in this embodiment needs to perform impedance control, and the line length is set within a preset threshold range, where the preset threshold makes the line length as short as possible, so as to reduce the path loss.
In this embodiment, optionally, the spacing areas corresponding to the patch antenna units 4 are located in the first edge area and/or the second edge area of the touch layer;
the first edge area and the second edge area are two ends of the touch layer.
Here, as shown in fig. 4, the orthographic projection position of the patch antenna unit 4 on the touch layer 2 may be a bottom end portion, i.e., a first edge area, of the touch layer 2. In consideration of the influence of the user holding the device on the performance of the antenna, an antenna array including a plurality of patch antenna units may be further disposed at the upper end portion, i.e., the second edge region, of the touch layer 2, and correspondingly, as shown in fig. 5, the upper end portion is further correspondingly disposed with a circuit board 19 including an antenna integrated circuit 18. Therefore, when the antenna arrays are arranged at the upper end part and the lower end part, automatic switching can be performed in the upper antenna array and the lower antenna array according to use requirements, for example, a user holds the lower end of the equipment, the antenna array at the upper end part is switched to realize communication, and the space coverage of the antenna arrays can be improved, for example, the index of a Cumulative Distribution Function (CDF).
Of course, the arrangement positions of the patch antenna units are not limited to the above implementation and are not listed here.
Specifically, in this embodiment, as shown in fig. 6, an equivalent simulation model of the patch antenna element and the feed structure 20 is given. The patch antenna unit including the patch antenna portion 41 and the second metal ground 42 is disposed on the polarizer 3 between the touch layer 2 and the optical cement 5. Since the liquid crystal polymer LCP material has the properties of low high-frequency loss, good stability, and easy bending, the LCP material is used as the feed line of the patch antenna unit in this embodiment, thereby reducing unnecessary line loss caused by feeding as much as possible.
In order to realize a common feeding structure that can satisfy the usage of the patch antenna unit, in this embodiment, in conjunction with fig. 6 and 7, optionally, the feeding structure 20 includes:
a first metal ground 21, a first substrate 22, a first conductive layer 23, a second substrate 24, and a second conductive layer 25 which are stacked;
wherein the first metal ground 21 is connected with the second metal ground 42 of the patch antenna unit;
the second conductive layer 25 is a coplanar waveguide provided with a conductor strip 251, a first end of the conductor strip 251 being connected to the patch antenna unit;
a via 241 corresponding to a second end of the conductor strip 251 is disposed on the second substrate 24;
a strip line 231 is provided on the first conductive layer 23, one end of the strip line 231 is connected to the antenna integrated circuit, and the strip line 231 is electrically connected to the conductor strip 251 through the via 241.
Thus, when the LCP feed structure is applied to millimeter wave communication, the LCP feed structure based on strip line (strip line) to coplanar waveguide (CPW) is adopted to feed the antenna: millimeter wave radio frequency signals enter the strip line through the Radio Frequency Integrated Circuit (RFIC), and the strip line is a totally-enclosed feed structure, so that electromagnetic waves on the strip line cannot be leaked into the space, and electromagnetic interference on other components in equipment is avoided; when the antenna is close to the feeding position of the antenna, the strip line is transformed to an upper coplanar waveguide (CPW) through a metal through hole so as to realize that the reference ground of the feeding line is well shared with the reference ground of the patch antenna unit.
For example, in fig. 3, the feed line 301 of the patch antenna unit 4 avoids the influence of the screen and the touch signal line 303 by the feed line insulating layer 302, converges to the link area 304, directly leads to the touch hot-pressing station, and is switched to the pin of the RFIC through the trace on the LCP feed structure after hot-pressing. Wherein, the link area 304 is provided with a positioning mark (as indicated by the dashed area) for positioning the LCP by hot pressing. RFIC welds to LCP feed structure on, can make display and touch-control chip on LCP feed structure simultaneously, and the BTB connector of screen and touch-control of sharing need not set up FPC and connector alone, has effectively saved the space.
Of course, the feed structures of the multiple patch antenna units may be arranged in one-to-one correspondence; or, on the metal ground upper layer of one feed structure, a conductor strip, a via hole and a strip line are arranged corresponding to each patch antenna unit, and the conductor strips of different patch antenna units are parallel to each other.
In addition, in this embodiment, optionally, the feeding structure is a coaxial feeder or a microstrip feeder.
Optionally, the display panel is an AMOLED (Active-matrix organic light-emitting diode) display panel.
Optionally, the circuit board is a flexible circuit board.
To sum up, the utility model discloses touch-control display module assembly, 1 light-emitting side of display panel is provided with the optics rete, a plurality of paster antenna unit 4 set up on the optics rete, be provided with touch-control layer 2 on display panel 1, and paster antenna unit 4 is located one of them interval region 9 at touch-control layer 2 planar orthographic projection, this interval region is in between two adjacent touch-control induction zone 8, so, the antenna can not influence touch-control experience, and the touch-control layer is also less to the influence of antenna performance, avoided the antenna to arrange the problem that the space is not enough to cause the antenna performance to descend.
The embodiment of the utility model provides an electronic equipment is still provided, include as above touch-control display module assembly.
The electronic equipment can be intelligent wearing equipment such as intelligent glasses, VR equipment and AR equipment, and can also be mobile terminal equipment such as Internet of things equipment, intelligent household equipment, vehicle-mounted equipment or mobile phones.
In addition, in the above embodiment, as the electronic device shown in fig. 5, the antenna arrays may be disposed at both the upper and lower end portions. Therefore, optionally, the electronic device further includes a switching circuit, and the switching circuit is respectively connected to the patch antenna units disposed at two ends of the touch layer.
Therefore, through the switching circuit, automatic switching can be realized in the upper antenna array and the lower antenna array according to the use requirement.
The electronic device can implement each process implemented by the electronic device in the touch display module embodiment of fig. 1 to 7, and is not described herein again to avoid repetition. The utility model discloses electronic equipment adopts foretell touch-control display module assembly, be provided with the touch-control layer on display panel, be provided with the optics rete on the touch-control layer, a plurality of paster antenna unit set up on the optics rete, and paster antenna unit is located one of them interval region at touch-control layer place planar orthographic projection, this interval region is in between two adjacent touch-control induction zones, so, the antenna can not influence touch-control experience, and the touch-control layer is also less to the influence of antenna performance, the problem of antenna performance decline has been avoided the antenna to arrange the space not enough to cause.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention.
Claims (10)
1. A touch display module is characterized by comprising:
a display panel;
the touch layer is arranged on the display panel and comprises a plurality of touch induction areas, and a spacing area is formed between every two adjacent touch induction areas;
the optical film layer is arranged on the touch layer;
the patch antenna units are arranged on the optical film layer, and the orthographic projection of each patch antenna unit on the plane where the touch layer is located in one of the interval areas.
2. The touch display module of claim 1, wherein no conductive structure is disposed in a target position on the touch layer, and the target position is an orthographic projection position of the patch antenna unit on a plane where the touch layer is located.
3. The touch display module of claim 1, wherein the spacing areas corresponding to the patch antenna units are located at a first edge area and/or a second edge area of the touch layer;
the first edge area and the second edge area are two ends of the touch layer.
4. The touch display module of claim 1, further comprising:
a circuit board provided with an antenna integrated circuit, a touch integrated circuit and a screen integrated circuit;
a connector shared by the antenna integrated circuit, the touch integrated circuit, and the screen integrated circuit;
the antenna integrated circuit, the touch integrated circuit and the screen integrated circuit share a feed structure.
5. The touch display module of claim 4, wherein the power feed structure comprises:
the first metal ground, the first substrate, the first conducting layer, the second substrate and the second conducting layer are arranged in a stacked mode;
wherein the first metal ground is connected to a second metal ground of the patch antenna unit;
the second conducting layer is a coplanar waveguide provided with a conductor strip, and a first end of the conductor strip is connected with the patch antenna unit;
a through hole corresponding to the second end of the conductor strip is formed in the second substrate;
and a strip line is arranged on the first conductive layer, one end of the strip line is connected with the antenna integrated circuit, and the strip line is electrically connected with the conductor strip through the via hole.
6. The touch display module of claim 4, wherein the feed structure is a coaxial feed line or a microstrip feed line.
7. The touch display module of claim 1, wherein the display panel is an AMOLED display panel.
8. The touch display module of claim 4, wherein the circuit board is a flexible circuit board.
9. An electronic device comprising the touch display module according to any one of claims 1-8.
10. The electronic device according to claim 9, further comprising a switching circuit, wherein the switching circuit is connected to the patch antenna units respectively disposed at two ends of the touch layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021376001.3U CN212322235U (en) | 2020-07-14 | 2020-07-14 | Touch display module and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021376001.3U CN212322235U (en) | 2020-07-14 | 2020-07-14 | Touch display module and electronic equipment |
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| Publication Number | Publication Date |
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| CN212322235U true CN212322235U (en) | 2021-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021376001.3U Active CN212322235U (en) | 2020-07-14 | 2020-07-14 | Touch display module and electronic equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113036393A (en) * | 2021-02-02 | 2021-06-25 | 深圳市信维通信股份有限公司 | Screen component integrated with NFC antenna structure and terminal equipment |
| WO2023092425A1 (en) * | 2021-11-25 | 2023-06-01 | 京东方科技集团股份有限公司 | Display substrate, manufacturing method, and display device |
-
2020
- 2020-07-14 CN CN202021376001.3U patent/CN212322235U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113036393A (en) * | 2021-02-02 | 2021-06-25 | 深圳市信维通信股份有限公司 | Screen component integrated with NFC antenna structure and terminal equipment |
| WO2023092425A1 (en) * | 2021-11-25 | 2023-06-01 | 京东方科技集团股份有限公司 | Display substrate, manufacturing method, and display device |
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