CN109713430B - Antenna device and mobile terminal - Google Patents
Antenna device and mobile terminal Download PDFInfo
- Publication number
- CN109713430B CN109713430B CN201811623360.1A CN201811623360A CN109713430B CN 109713430 B CN109713430 B CN 109713430B CN 201811623360 A CN201811623360 A CN 201811623360A CN 109713430 B CN109713430 B CN 109713430B
- Authority
- CN
- China
- Prior art keywords
- antenna
- breakpoint
- low
- medium
- high frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses an antenna device and a mobile terminal, wherein the antenna device comprises a metal frame, a first breakpoint is arranged on the bottom edge of the metal frame, a second breakpoint and a third breakpoint are respectively arranged on two side edges of the metal frame, and a first antenna is formed between the first breakpoint and the second breakpoint and is used for realizing the functions of a low-frequency-band antenna and a medium-high-frequency-band antenna; a second antenna is formed between the first break point and the third break point and is used for realizing the function of the medium-high frequency band antenna; a third antenna is formed at the top of the metal frame and used for realizing the function of a low-frequency-band antenna; the antenna device further comprises a change-over switch, wherein the change-over switch is respectively connected with the first antenna and the second antenna and is used for realizing the switching of the first antenna and the second antenna. The invention can reduce the influence of hands on the performance of the antenna and simultaneously avoid the problem of higher head SAR; the space occupied by the antenna can be saved, and the performance of a single antenna is improved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to an antenna device and a mobile terminal.
Background
In the design of a mobile terminal with a metal shell, a partition needs to be arranged on the metal shell, for example, the antenna is split into at least two parts, so as to improve the performance of the antenna or meet the performance of a carrier aggregation antenna.
The inventor of the present application found in long-term research and development that splitting the antenna into two would make the antenna more affected by human hands, and the larger the number of antennas, the larger the space required, and the limited positions where the antennas can be laid out in the metal housing. In order to improve the performance of the mobile terminal, the mobile terminal may be switched between an upper antenna and a lower antenna, but the SAR (Specific Absorption Rate) of the head is higher.
Disclosure of Invention
The invention provides an antenna device and a mobile terminal, and aims to solve the technical problem that antenna performance is easily influenced by hands in the prior art.
In order to solve the above technical problems, one technical solution adopted by the present invention is to provide an antenna apparatus, including a metal frame, a first breakpoint is arranged at a bottom edge of the metal frame, a second breakpoint and a third breakpoint are respectively arranged at two side edges of the metal frame, and a first antenna is formed between the first breakpoint and the second breakpoint, so as to implement a low-frequency band antenna function and a medium-high band antenna function; a second antenna is formed between the first breakpoint and the third breakpoint and is used for realizing the function of a medium-high frequency band antenna; a third antenna is formed at the top of the metal frame and used for realizing the function of a low-frequency-band antenna;
the antenna device further comprises a switch, wherein the switch is respectively connected with the first antenna and the second antenna and used for realizing switching of the first antenna and the second antenna.
A fourth breakpoint and a fifth breakpoint are arranged on the top edge of the metal frame, and the third antenna is formed between the fourth breakpoint and the fifth breakpoint; a fourth antenna is formed between the second breakpoint and the fourth breakpoint and used for realizing a WiFi function; and a fifth antenna is formed between the third breakpoint and the fifth breakpoint and used for realizing the GPS function.
The antenna device further comprises a low-frequency feeder line and a medium-high frequency feeder line, wherein the low-frequency feeder line and the medium-high frequency feeder line are respectively connected with the first antenna, the low-frequency feeder line is used for achieving a low-frequency band antenna function, the medium-high frequency feeder line is used for achieving a medium-high band antenna function, and the selector switch is respectively connected with the medium-high frequency feeder line and the second antenna.
The bottom edge of the metal frame is also provided with an interface, the interface is positioned between the first breakpoint and the second breakpoint and is close to the first breakpoint, the antenna device also comprises a low-frequency feed point and a middle-high frequency feed point, and the low-frequency feed point is connected with the low-frequency feed line and is positioned on one side of the interface far away from the first breakpoint; the medium-high frequency feeder is connected with the medium-high frequency feeder and is positioned on one side, close to the first breakpoint, of the interface.
The antenna device further comprises a low-frequency filter circuit and a medium-high frequency filter circuit, wherein the low-frequency filter circuit is connected with the low-frequency feeder line, and the medium-high frequency filter circuit is connected with the medium-high frequency feeder line.
The second break point and the third break point, and the fourth break point and the fifth break point are respectively symmetrical relative to a symmetrical center line in the metal frame parallel to the length direction of the metal frame.
Wherein the widths of the first break point, the second break point and the third break point are 1.55-1.65 mm.
Wherein the length of the first antenna is 45 to 55mm, and the length of the second antenna is 35 to 45 mm.
Wherein the length of the third antenna is 43 to 53 mm.
In order to solve the above technical problem, another technical solution adopted by the present invention is to provide a mobile terminal including the above antenna apparatus.
According to the invention, the low-frequency antennas are arranged at the bottom and the top of the metal frame, so that the influence of hands on the performance of the low-frequency antenna can be reduced, and the problem of high head SAR can be avoided; the low-frequency antenna and the medium-high frequency antenna are multiplexed with the same section of metal frame, so that the space occupied by the antenna is saved, and the performance of a single antenna is improved.
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 are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
fig. 1 is a schematic structural diagram of an embodiment of an antenna device of the present invention;
fig. 2 is a schematic structural diagram of an embodiment of an antenna device of the present invention;
fig. 3 is a schematic structural diagram of a low-frequency filter circuit in an embodiment of an antenna apparatus according to the present invention;
fig. 4 is a schematic structural diagram of a medium-high frequency filter circuit in an embodiment of an antenna apparatus according to the present invention.
Detailed Description
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 obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1, an embodiment of the antenna apparatus of the present invention includes a metal frame 100, a first break point 111 is disposed at a bottom edge of the metal frame 100, a second break point 112 and a third break point 113 are respectively disposed at two side edges of the metal frame 100, and a first antenna 120 is formed between the first break point 111 and the second break point 112, and is configured to implement a low-band antenna function and a medium-high band antenna function; a second antenna 130 is formed between the first break point 111 and the third break point 113, and is used for realizing the function of a medium-high frequency band antenna; the top of the metal frame 100 forms a third antenna 140 for implementing a low-band antenna function; the antenna apparatus further includes a switch 200, and the switch 200 is connected to the first antenna 120 and the second antenna 130, respectively, for implementing switching between the first antenna 120 and the second antenna 130.
In the present embodiment, the metal frame 100 may be an aluminum alloy or a zinc alloy.
According to the embodiment of the invention, the low-frequency antennas are arranged at the bottom and the top of the metal frame, so that the influence of hands on the performance of the low-frequency antennas can be reduced, and the problem of high head SAR can be avoided; the low-frequency antenna and the medium-high frequency antenna are multiplexed with the same section of metal frame, so that the space occupied by the antenna is saved, and the performance of a single antenna is improved.
In this embodiment, the top edge of the metal frame 100 is provided with a fourth breakpoint 114 and a fifth breakpoint 115, and a third antenna 140 is formed between the fourth breakpoint 114 and the fifth breakpoint 115; a fourth antenna 150 is formed between the second breakpoint 112 and the fourth breakpoint 114, and is used for implementing a WiFi function, such as 2.4GHz WiFi; a fifth antenna 160 is formed between the third breakpoint 113 and the fifth breakpoint 115 for implementing the GPS function.
In the present embodiment, the second break point 112 and the third break point 113, and the fourth break point 114 and the fifth break point 115 are respectively symmetrical with respect to a center line of symmetry in the metal frame 100 parallel to the length direction of the metal frame.
The widths of the first break point 111, the second break point 112, the third break point 113, the fourth break point 114, and the fifth break point 115 are 1.55 to 1.65mm, for example, 1.55mm, 1.6mm, or 1.65 mm. In this embodiment, the breakpoint locations may be filled with plastic to achieve insulation.
The first antenna 120 has a length of 45 to 55mm, for example 45mm, 50mm or 55 mm. The length of the second antenna 130 is 35 to 45mm, for example 35mm, 40mm or 45 mm. The length of the third antenna 140 is 43 to 53mm, for example 43mm, 48mm or 53 mm. In other embodiments, the length and the position of the third antenna 140 may also be changed according to the antenna performance that the third antenna 140 needs to implement, which is not limited herein.
In this embodiment, the metal frame 100 is provided with an antenna support, and the antenna trace may be Laser-etched on the antenna support by an LDS (Laser-Direct-Structuring) technology and may be connected to the metal frame by a conductive elastic sheet.
The bottom edge of the metal frame 100 is further provided with an interface 170, and the interface 170 is located between the first breakpoint 111 and the second breakpoint 112 and is close to the first breakpoint 111. In the present embodiment, the interface 170 is a USB (Universal Serial Bus) interface, and the USB interface is located in the middle of the bottom side of the metal frame 100. In other embodiments, the interface 170 may also be other interfaces of the mobile terminal, such as a headset interface, etc.
Referring to fig. 2, in the present embodiment, the antenna apparatus further includes a low frequency feeder 121 and a middle and high frequency feeder 122, the low frequency feeder 121 and the middle and high frequency feeder 122 are respectively connected to the first antenna 120, the low frequency feeder 121 is used to implement a low frequency band antenna function, the middle and high frequency feeder 122 is used to implement a middle and high frequency band antenna function, and the switch 200 is respectively connected to the middle and high frequency feeder 122 and the second antenna 130.
Specifically, in the present embodiment, the low-frequency feeder 121 is used to cooperate with the first antenna 120 to implement a low-frequency main set transceiving function, such as low-frequency B71, B12, B13, and B5 bands; the medium-high frequency feeder 122 is used for realizing a medium-high frequency diversity reception function in cooperation with the first antenna 120, such as medium frequencies B2, B4, B66, and high frequencies B30, B7; the second antenna 130 is used for realizing the medium-high frequency main set transceiving functions, such as intermediate frequencies B2, B4, B66, high frequencies B7, B30; the third antenna 140 is used to implement low band diversity reception functions, such as low frequencies B71, B12, B13, B5.
The antenna device further comprises a low-frequency feed point 123 and a medium-high frequency feed point 124, wherein the low-frequency feed point 123 is connected with the low-frequency feed line 121 and is positioned on one side of the interface 170 away from the first break point 111; the middle-high frequency feed point 124 is connected to the middle-high frequency feed line 122 and is located on a side of the interface 170 close to the first break point 111.
In the present embodiment, the low Frequency feeder 121 and the medium and high Frequency feeder 122 may be RF (Radio Frequency) feeders. In other embodiments, the first antenna 120 may also be directly connected to the low frequency feed point 123 and the middle and high frequency feed point 124 through RF cable lines, respectively, without limitation.
In the embodiment, the switch 200 is a DPDT (Double Pole Double Throw) switch, and the DPDT switch is respectively connected between the middle-high frequency feeder 122 and the middle-high frequency feeder 124, and between the second antenna 130 and the second antenna feeder 131, so as to realize the switching between the first antenna 120 and the second antenna 130.
In this embodiment, the antenna apparatus further includes a third antenna feed point 141, a fourth antenna feed point 151, and a fifth antenna feed point 161, where the third antenna feed point 141 is connected to the third antenna 140 and is close to the fourth disconnection point 114; the fourth antenna feed point 151 is connected to the fourth antenna 150 and is close to the fourth disconnection point 114; the fifth antenna feed 161 is connected to the fifth antenna 160 and is close to the fifth disconnection point 115.
In the embodiment of the present invention, the first antenna 120 is disposed on the left side of the metal frame 100, so that when a user holds the antenna with a right hand, the performance of the low-frequency antenna realized by the first antenna 120 is not easily affected by the hand, and the second antenna 130 at the position held by the right hand is switched with the first antenna 120 by the switch 200, so that the second antenna 130 is used for realizing the high-frequency diversity reception function, and the first antenna 120 is used for realizing the medium-high frequency main diversity reception function, thereby reducing the influence of the hand on the performance of the medium-high frequency antenna.
In other embodiments, the first antenna 120 may also be disposed on the right side of the metal frame 100, that is, the first antenna is formed between the first breakpoint 111 and the third breakpoint 113, the second antenna 130 is formed between the first breakpoint 111 and the second breakpoint 112, and the interface 170 is disposed between the first breakpoint 111 and the third breakpoint 113, so as to adapt to the usage habit of a user who is used to hold the metal frame with a left hand, which is not limited herein.
In this embodiment, the antenna device further includes a low frequency filter circuit 300 and a medium and high frequency filter circuit 400, the low frequency filter circuit 300 is connected to the low frequency feed line 121, and the medium and high frequency filter circuit 400 is connected to the medium and high frequency feed line 122.
Specifically, referring to fig. 3, the low frequency filter circuit 300 includes a first inductor L1 connected in series with the low frequency feed line 121, a second inductor L2 connected in parallel with the low frequency feed line 121 and the first inductor L1, and a first capacitor C1 connected in parallel with the second inductor L2, wherein the first inductor L1 is 12nH (nanohenry), the second inductor is 1nH, and the first capacitor C1 is 6pF (picofarad).
Referring to fig. 4, the middle and high frequency filter circuit 400 includes a second capacitor C2 connected in series with the middle and high frequency feed line 122, a third inductor L3 connected in parallel with the middle and high frequency feed line 122 and the second capacitor C2, and a third capacitor C3 connected in parallel with the third inductor L3, wherein the second capacitor C2 is 0.5pF, the third inductor L3 is 1.5nH, and the third capacitor C3 is 1 pF.
The embodiment of the invention realizes the low-frequency antenna function and the high-frequency antenna function by respectively connecting the first antenna with different feeders, so that the mutual influence is low, namely, the switch tuning and the impedance tuning between low-frequency and different frequency bands cannot cause the performance change of the medium-high frequency antenna, the switching of the medium-high frequency antenna function between the first antenna and the second antenna cannot influence the performance of the low-frequency antenna, and the invention is favorable for the achievement of performance indexes in CA (Carrier Aggregation) and OTA (Over-the-Air Technology) tests.
According to the embodiment of the invention, the low-frequency antennas are arranged at the bottom and the top of the metal frame, so that the influence of hands on the performance of the low-frequency antennas can be reduced, and the problem of high head SAR can be avoided; the low-frequency antenna and the medium-high frequency antenna are multiplexed with the same section of metal frame, so that the space occupied by the antenna is saved, and the performance of a single antenna is improved.
The embodiment of the mobile terminal of the invention comprises the antenna device, wherein the structure of the antenna device refers to the embodiment of the antenna device, and is not described herein again.
According to the embodiment of the invention, the low-frequency antennas are arranged at the bottom and the top of the metal frame, so that the influence of hands on the performance of the low-frequency antennas can be reduced, and the problem of high head SAR can be avoided; the low-frequency antenna and the medium-high frequency antenna are multiplexed with the same section of metal frame, so that the space occupied by the antenna is saved, and the performance of a single antenna is improved.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. An antenna device is characterized by comprising a metal frame, wherein a first breakpoint is arranged on the bottom edge of the metal frame, a second breakpoint and a third breakpoint are respectively arranged on two side edges of the metal frame, and a first antenna is formed between the first breakpoint and the second breakpoint and is used for realizing the functions of a low-frequency band main set receiving and transmitting antenna and a medium-high frequency band diversity receiving antenna; a second antenna is formed between the first breakpoint and the third breakpoint and is used for realizing the function of a medium-high frequency band main set receiving and transmitting antenna; a third antenna is formed at the top of the metal frame and used for realizing the function of a low-frequency diversity receiving antenna;
the antenna device further comprises a switch, wherein the switch is respectively connected with the first antenna and the second antenna and is used for realizing the switching of the first antenna and the second antenna;
the antenna device further comprises a low-frequency feeder line and a medium-high frequency feeder line, wherein the low-frequency feeder line and the medium-high frequency feeder line are respectively connected with the first antenna, the low-frequency feeder line is used for achieving a low-frequency band antenna function, the medium-high frequency feeder line is used for achieving a medium-high band antenna function, and the selector switch is respectively connected with the medium-high frequency feeder line and the second antenna.
2. The antenna device according to claim 1, wherein a fourth breakpoint and a fifth breakpoint are arranged on the top edge of the metal frame, and the third antenna is formed between the fourth breakpoint and the fifth breakpoint; a fourth antenna is formed between the second breakpoint and the fourth breakpoint and used for realizing a WiFi function; and a fifth antenna is formed between the third breakpoint and the fifth breakpoint and used for realizing the GPS function.
3. The antenna device according to claim 1, wherein an interface is further disposed at a bottom edge of the metal frame, the interface is located between the first breakpoint and the second breakpoint and is close to the first breakpoint, the antenna device further includes a low frequency feed point and a middle and high frequency feed point, the low frequency feed point is connected to the low frequency feed line and is located at a side of the interface away from the first breakpoint; the medium-high frequency feeder is connected with the medium-high frequency feeder and is positioned on one side, close to the first breakpoint, of the interface.
4. The antenna device according to claim 1, further comprising a low frequency filter circuit and a medium and high frequency filter circuit, the low frequency filter circuit being connected to the low frequency feed line and the medium and high frequency filter circuit being connected to the medium and high frequency feed line.
5. The antenna device according to claim 2, wherein the second break point and the third break point, and the fourth break point and the fifth break point are respectively symmetrical with respect to a center line of symmetry in the metal frame parallel to a length direction of the metal frame.
6. The antenna device according to claim 1, wherein the first break point, the second break point, and the third break point have a width of 1.55 to 1.65 mm.
7. The antenna device according to claim 1, wherein the first antenna has a length of 45 to 55mm, and the second antenna has a length of 35 to 45 mm.
8. The antenna device according to claim 2, wherein the length of the third antenna is 43 to 53 mm.
9. A mobile terminal, characterized in that it comprises an antenna device according to any of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811623360.1A CN109713430B (en) | 2018-12-28 | 2018-12-28 | Antenna device and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811623360.1A CN109713430B (en) | 2018-12-28 | 2018-12-28 | Antenna device and mobile terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109713430A CN109713430A (en) | 2019-05-03 |
| CN109713430B true CN109713430B (en) | 2021-02-26 |
Family
ID=66259009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811623360.1A Active CN109713430B (en) | 2018-12-28 | 2018-12-28 | Antenna device and mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109713430B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108281767A (en) * | 2018-01-19 | 2018-07-13 | 广东欧珀移动通信有限公司 | Antenna module and electronic equipment |
| CN108718206A (en) * | 2018-05-02 | 2018-10-30 | Oppo广东移动通信有限公司 | Antenna module, electronic equipment, method of controlling antenna and storage medium |
| CN108832267A (en) * | 2018-05-29 | 2018-11-16 | Oppo广东移动通信有限公司 | Electronic device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105514624B (en) * | 2015-12-23 | 2018-06-22 | 广东欧珀移动通信有限公司 | A kind of mobile terminal antenna system and mobile terminal |
| CN106450772A (en) * | 2016-11-17 | 2017-02-22 | 广东欧珀移动通信有限公司 | Antenna assembly used in mobile terminal and mobile terminal |
| US11069955B2 (en) * | 2017-03-20 | 2021-07-20 | Huawei Technologies Co., Ltd. | Antenna of mobile terminal and mobile terminal |
| CN207781876U (en) * | 2017-12-28 | 2018-08-28 | 广东欧珀移动通信有限公司 | Antenna module, shell and mobile terminal |
| CN108039572A (en) * | 2018-01-19 | 2018-05-15 | 广东欧珀移动通信有限公司 | Antenna module, center component and electronic equipment |
| CN108336483B (en) * | 2018-02-02 | 2021-03-02 | Oppo广东移动通信有限公司 | Antenna assembly, electronic equipment and antenna switching method |
| CN109088152B (en) * | 2018-08-03 | 2020-11-20 | 瑞声科技（南京）有限公司 | Antenna system and mobile terminal |
-
2018
- 2018-12-28 CN CN201811623360.1A patent/CN109713430B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108281767A (en) * | 2018-01-19 | 2018-07-13 | 广东欧珀移动通信有限公司 | Antenna module and electronic equipment |
| CN108718206A (en) * | 2018-05-02 | 2018-10-30 | Oppo广东移动通信有限公司 | Antenna module, electronic equipment, method of controlling antenna and storage medium |
| CN108832267A (en) * | 2018-05-29 | 2018-11-16 | Oppo广东移动通信有限公司 | Electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109713430A (en) | 2019-05-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109346833B (en) | Terminal equipment with WIFI MIMO antenna | |
| CN204167466U (en) | A kind of metal edge frame multifrequency loop antenna | |
| US9634385B2 (en) | Antenna apparatus and terminal device | |
| US9583835B2 (en) | Multiband antenna and wireless communication device employing same | |
| US9276320B2 (en) | Multi-band antenna | |
| US10084236B2 (en) | Tunable antenna and terminal | |
| EP2387105A2 (en) | Re-configurable built-in antenna for portable terminal | |
| CN105609969A (en) | Communication terminal | |
| KR20200135552A (en) | Antenna system and terminal equipment | |
| CN108054491B (en) | Antenna system and mobile terminal | |
| CN202759016U (en) | Tunable coupling feed antenna system | |
| CN103682587A (en) | Mobile device | |
| EP1305843A1 (en) | Antenna arrangement and portable radio communication device | |
| CN111092295B (en) | Antenna, antenna adjusting method, terminal and storage medium | |
| CN104425885A (en) | Antenna device and mobile terminal | |
| CN107394404A (en) | A kind of antenna structure and mobile terminal | |
| CN205646164U (en) | Terminal antenna and intelligent terminal | |
| EP3179556A1 (en) | Antenna radiator, antenna and mobile terminal | |
| CN103078174A (en) | Multifrequency antenna device | |
| CN109449595B (en) | MIMO antenna | |
| KR20190040331A (en) | An antenna device for a mobile terminal and a mobile terminal having the antenna device for the mobile terminal | |
| CN108400427A (en) | Antenna system | |
| CN205509020U (en) | Communication terminal | |
| CN204441460U (en) | A kind of IFA antenna of novel wide-band | |
| CN104143694B (en) | Antenna structure and wireless communication device using same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230404 Address after: 518000 Room 201, building A, No. 1, Qian Wan Road, Qianhai Shenzhen Hong Kong cooperation zone, Shenzhen, Guangdong (Shenzhen Qianhai business secretary Co., Ltd.) Patentee after: Shenzhen Huaxi Investment Co.,Ltd. Address before: 516006 Zhongkai hi tech Zone, Huizhou, Guangdong, 86 Chang seven Road West Patentee before: HUIZHOU TCL MOBILE COMMUNICATION Co.,Ltd. |