CN113031699A - Screen assembly of terminal and terminal equipment - Google Patents
Screen assembly of terminal and terminal equipment Download PDFInfo
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- CN113031699A CN113031699A CN202110276629.9A CN202110276629A CN113031699A CN 113031699 A CN113031699 A CN 113031699A CN 202110276629 A CN202110276629 A CN 202110276629A CN 113031699 A CN113031699 A CN 113031699A
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- 230000005855 radiation Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
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- G06F1/1613—Constructional details or arrangements for portable computers
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Abstract
The application discloses screen subassembly and terminal equipment of terminal, the screen subassembly of disclosed terminal includes: the display comprises a screen, an M-FPC and a TP-FPC, wherein the M-FPC is electrically connected with the display screen and is arranged on one side of the display screen, which is far away from a display surface; the TP-FPC is electrically connected with the display screen and arranged on one side of the M-FPC, which is far away from the display screen; a display driving chip, a first display signal wire and a second display signal wire are arranged on the M-FPC, wherein one end of the first display signal wire and one end of the second display signal wire are respectively and electrically connected with the display driving chip, and the other end of the first display signal wire and the other end of the second display signal wire are respectively and electrically connected with the display screen; the TP-FPC covers the first display signal trace and the second display signal trace.
Description
Technical Field
The application relates to the technical field of communication, in particular to a screen assembly of a terminal and terminal equipment.
Background
In the current electronic devices, a Chip On Flex (COF) display module is generally used. In an electronic device adopting a COF display mode, generally, a single layer region of a Flexible Printed Circuit board (FPC) near a lower antenna is free of any shielding measure, and an FPC line is directly exposed to a radiation field of the antenna, so that the transmission power of the antenna is easily coupled. For example, a plurality of display signal traces for displaying digital signals are disposed in a single-layer area of a Main flexible printed circuit (Main-FPC, M-FPC) of a COF display module, the display signal traces generally output the digital signals by using a push-pull circuit, a Metal Oxide Semiconductor (MOS) of the push-pull circuit has nonlinearity, and the distance between the digital signals in the single-layer area and an antenna is less than 1mm, so that the transmission power of the antenna is easily coupled. In addition, due to the non-linearity, intermodulation generally occurs in the MOS circuit, and the frequency spectrum generated by the digital signal interferes with the reception band of the lower antenna. How to avoid the interference between the display signal trace and the antenna has not been an effective solution at present.
Disclosure of Invention
The application discloses screen assembly and terminal equipment at terminal to solve the problem of the interference between the display signal line and the antenna in present terminal equipment.
In order to solve the above problems, the following technical solutions are adopted in the present application:
in a first aspect, an embodiment of the present application discloses a screen assembly of a terminal, including: the display comprises a screen, a main flexible circuit board M-FPC and a touch screen flexible circuit board TP-FPC, wherein the M-FPC is electrically connected with the display and is arranged on one side of the display, which is far away from a display surface; the TP-FPC is electrically connected with the display screen and arranged on one side of the M-FPC, which is far away from the display screen; a display driving chip, a first display signal wire and a second display signal wire are arranged on the M-FPC, wherein one end of the first display signal wire and one end of the second display signal wire are respectively and electrically connected with the display driving chip, and the other end of the first display signal wire and the other end of the second display signal wire are respectively and electrically connected with the display screen; the TP-FPC covers the first display signal trace and the second display signal trace.
In a second aspect, an embodiment of the present application discloses a terminal device, which includes the screen assembly described in the first aspect.
The embodiment of the application discloses technical scheme that this application adopted can reach following beneficial effect:
the embodiment of the application discloses screen assembly at terminal, one end of first display signal wire and second display signal wire of M-FPC are connected with display driver chip electricity, the other end is connected with display screen electricity respectively, and TP-FPC covers first display signal wire and second display signal wire, TP-FPC can walk line and second display signal and realize shielding effect to first display signal, and then no matter how the antenna layout of terminal equipment changes, the radiation power of antenna can not couple to display signal wire, and then the problem that signal wire in present terminal equipment can couple antenna emission power and take place the intermodulation is solved.
Drawings
Fig. 1 is a top view of a screen assembly of a terminal according to an embodiment of the present application;
fig. 2 is a side view of a screen assembly of a terminal according to an embodiment of the present application;
fig. 3 is a top view of a screen assembly of another terminal disclosed in an embodiment of the present application;
fig. 4 is a side view of a screen assembly of another terminal disclosed in an embodiment of the present application;
fig. 5 is a schematic diagram of a hardware structure of a terminal device disclosed in an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The screen component and the terminal device of the terminal provided by the embodiment of the present application are described in detail through specific embodiments and application scenarios thereof with reference to the accompanying drawings.
In the COF display module, an independent Touch screen Flexible Printed Circuit board (TP-FPC) is arranged and used for transmitting Touch signals, because the wiring for transmitting the Touch signals has a shielding effect on the M-FPC, if the TP-FPC is arranged above the side of a Main Flexible Printed Circuit board (M-FPC) and covers the M-FPC, partial or all coupling between the display signal wiring and an antenna can be shielded, therefore, the TP-FPC is adopted to isolate the display signal wiring and the antenna in the M-FPC in the embodiment of the application, and the coupling between the display signal wiring and the antenna is avoided.
Fig. 1 is a top view of a screen assembly of a terminal disclosed in an embodiment of the present application, and as shown in fig. 1, the embodiment of the present application discloses a screen assembly 100 of a terminal, taking a COF display module as an example, the disclosed screen assembly 100 includes: a display screen 110, an M-FPC120, and a TP-FPC140, wherein the TP-FPC140 may be used for receiving and transmitting a touch signal of a touch chip.
The M-FPC is electrically connected with the display screen 110 and is arranged on one side of the display screen 110 far away from the display surface. Through the M-FPC, a control signal that controls display timing can be transmitted to the display screen 110.
The TP-FPC is electrically connected to the display screen 110 and disposed on a side of the M-FPC away from the display screen 110, in which case the TP-FPC may partially cover the M-FPC.
In addition, in the screen assembly 100 disclosed in the embodiment of the present application, a plurality of display signal traces are integrated in the M-FPC, and display signals can be transmitted to the display screen 110 through the display signal traces, specifically, as shown in fig. 2, a display driver chip 121, a first display signal trace 122, and a second display signal trace 123 can be disposed on the M-FPC120, wherein one end of the first display signal trace 122 and one end of the second display signal trace 123 are electrically connected to the display driver chip 121, and the other end of the first display signal trace and the other end of the second display signal trace 123 are electrically connected to the display screen 110. At this time, the display driving chip 121 sends a control signal for controlling the display timing, and the control signal can be transmitted to the display screen 110 through the first display signal routing 122 and the second display signal routing 123, so as to control the display screen 110 to display.
In fig. 1, to avoid interference between the display signal traces and the antenna, the TP-FPC140 may cover the first display signal traces 122 and the second display signal traces 123, that is, the TP-FPC may cover both the first display signal traces 122 and the second display signal traces 123, and then the TP-FPC may shield the display signal traces.
In one possible implementation manner of the embodiment of the present application, the position of the M-FPC120 may be determined according to the antenna position of the terminal, for example, if the terminal adopts a lower antenna structure, that is, the antenna is located at the lower end of the display screen 110, the M-FPC120 is located at the lower end of the display screen 110, and of course, the present application is not limited thereto.
The embodiment of the application discloses a screen assembly of a terminal, one end of a first display signal wire 122 and one end of a second display signal wire 123 of an M-FPC120 are electrically connected with a display driving chip 121, the other end of the first display signal wire 122 and the other end of the second display signal wire 123 are electrically connected with a display screen 110 respectively, a TP-FPC140 covers the first display signal wire 122 and the second display signal wire 123, the TP-FPC140 can shield the first display signal wire 122 and the second display signal wire 123, and therefore no matter how the antenna layout of terminal equipment changes, the radiation power of an antenna can not be coupled to the display signal wires, and the problem that the signal wires in the current terminal equipment can be coupled with the transmission power of the antenna to generate intermodulation is solved.
In one possible implementation manner, a receiving trace 141 and a transmitting trace 142 electrically connected to the display screen 110 respectively may be distributed on the TP-FPC140, and the transmitting trace 142 and the receiving trace 141 are both disposed on the TP-FPC 120, wherein the transmitting trace 142 may be directly opposite to the first display signal trace 122, and the receiving trace 141 may be directly opposite to the second display signal trace 123. Since the transmitting trace 142 and the receiving trace 141 are metal, shielding efficiency of the first display signal trace 122 and the second display signal trace 123 can be improved.
Optionally, in the implementation manner, the distribution area of the transmitting trace 142 may be greater than or equal to the distribution area of the first display signal trace 122, and the distribution area of the receiving trace 141 may be greater than or equal to the distribution area of the second display signal trace 123, so that the distribution areas of the first display signal trace 122 and the second display signal trace 123 may be completely covered by the distribution area of the transmitting trace 142 or the distribution area of the receiving trace 141, and interference between the display signal trace and the antenna is effectively avoided.
In one possible implementation, as shown in fig. 1, the first display signal trace 122 and the second display signal 123 may be connected to the same side of the display screen 110, for example, the first display signal trace 122 and the second display signal 123 are connected to the side of the bottom of the display screen 110 in fig. 1.
Optionally, in the possible implementation manner described above, as shown in fig. 1, the receiving trace 141 and the transmitting trace 142 may also be connected to the same side of the display screen 110 as the first display signal trace 122 and the second display signal trace 123.
In another possible implementation, as shown in fig. 2, the first display signal traces 122 and the second display signal traces 123 are connected to different sides of the display screen 110.
Optionally, in the possible implementation manner described above, as shown in fig. 2, the transmitting trace 142 may be connected to the same side of the display screen 110 as the first display signal trace 122, and the receiving trace 141 may be connected to the other side of the display screen 110 as the second display signal trace 123.
In one possible implementation manner, the M-FPC120 may further distribute active signal traces 124, as shown in fig. 3, one end of the active signal trace 124 is electrically connected to the display driver chip 121, and the other end is electrically connected to the display screen 110. Then in this possible implementation, the TP-FPC140 may also overlay the source signal traces 124 in order to avoid interference of the source signal traces 124 with the antenna in the terminal device. With this possible implementation, in the case where the display driver chip 121 sends out a source signal, the source signal may transmit the display signal to the display screen 110 through the source signal routing 124. The TP-FPC140 covers the source signal traces 124 so that the TP-FPC140 can shield the source signal traces 124 and avoid interference between the source signal traces 124 and the antenna of the terminal device.
In a further technical solution, as shown in fig. 3 and 4, a shielding trace 143 may be distributed on the TP-FPC140, and the shielding trace 143 is grounded and directly faces the source signal trace 124. In this way, the grounded shielding trace 143 can further provide shielding effect for the source signal trace 124, so that the shielding effect is better.
Optionally, in the above implementation, the distribution area of the shield trace 143 may be greater than or equal to the distribution area of the source signal trace 124. Therefore, the distribution area of the source signal trace 124 can be completely covered by the distribution area of the shielding trace 143, and the interference between the source signal trace 124 and the antenna of the terminal is effectively avoided.
Furthermore, as shown in FIG. 3, in the case where the M-FPC120 is near the lower end of the display screen 110, the source signal traces 124 may be distributed on the M-FPC120 near the lower end of the display screen 110. By the layout mode, the space occupied by the source signal routing 124 is small, and the internal space in the terminal equipment can be well utilized in the assembling process, so that the space utilization rate is maximized.
In addition, in order to save the installation space and save the material, in a possible implementation manner, the projection area of the TP-FPC140 on the display screen 110 may be smaller than the projection area of the M-FPC120 on the display screen 110, that is, the TP-FPC140 may only cover the routing positions in the M-FPC 140, and in this manner, the TP-FPC140 with a smaller area may not only implement the normal touch function, but also shield the display signal routing in the M-FPC120 by using the limited area, thereby avoiding the generation of the cross talk phenomenon, and at this time, the space utilization of the screen assembly 100 is further improved, and the material is also saved.
In the embodiment of the present application, in order to make the connection structure between the M-FPC120 and the terminal device more stable, a connector 130 for connecting a main board of the terminal may be further disposed on the M-FPC120, and in a possible implementation manner, as shown in fig. 1 and fig. 3, the M-FPC120 may be directly connected to the main board of the terminal through the connector 130, or the M-FPC120 may be directly connected to an auxiliary board of the terminal through the connector 130 and then connected to the main board through the auxiliary board. Therefore, the terminal main board can supply power to the M-FPC120 through the connector 130, and can also send an instruction to the M-FPC120, and the M-FPC120 can perform corresponding operation steps after receiving the instruction.
In addition, the connector 130 may be a Board-To-Board (BTB) connector, a rectangular connector, or the like, and is not particularly limited in this embodiment.
In each of the above possible implementations, as shown in fig. 2 and 4, one end of the first display signal trace 122 and one end of the second display signal trace 123 may be electrically connected to two sides of the display driving chip 121, respectively. That is, the first display signal trace 122 and the second display signal trace 123 are respectively connected to two sides of the display driving chip 121. Of course, the present invention is not limited thereto, and in a specific application, the first display signal trace 122 and the second display signal trace 123 may also be electrically connected to the display driving chip 121 by other methods, which is not limited in the embodiment of the present invention.
Based on the screen assembly 100 described above, the embodiment of the present application discloses a terminal device, which includes the screen assembly 100 described above. By adopting the terminal device provided by the embodiment of the application, the TP-FPC140 covers the first display signal wiring 122 and the second display signal wiring 123 of the M-FPC120, so that the first display signal wiring 122 and the second display signal wiring 123 can be shielded, and further, no matter how the antenna layout of the terminal device is changed, the radiation power of the antenna cannot be coupled to the display signal wiring, and the problem that the signal wiring in the current terminal device can be coupled with the transmission power of the antenna to generate intermodulation is solved.
The terminal equipment disclosed by the embodiment of the application has various types, can be a mobile phone, a tablet personal computer, intelligent wearable equipment and the like, and is not particularly limited by the embodiment of the application.
Fig. 5 is a schematic diagram of a hardware structure of a terminal device for implementing the embodiment of the present application.
The terminal device 500 includes but is not limited to: a radio frequency unit 501, a network module 502, an audio output unit 503, an input unit 504, a sensor 505, a display unit 506, a user input unit 507, an interface unit 508, a memory 509, a processor 510, and the like.
Those skilled in the art will appreciate that the terminal device 500 may further include a power supply (e.g., a battery) for supplying power to various components, and the power supply may be logically connected to the processor 510 via a power management system, so as to implement functions of managing charging, discharging, and power consumption via the power management system. The terminal device structure shown in fig. 5 does not constitute a limitation of the terminal device, and the terminal device may include more or less components than those shown, or combine some components, or arrange different components, and thus, the description is omitted here.
It should be understood that in the embodiment of the present application, the input Unit 504 may include a Graphics Processing Unit (GPU) 5041 and a microphone 5042, and the Graphics processor 5041 processes image data of still pictures or videos obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 506 may include a display panel 5061, and the display panel 5061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 507 includes a touch panel 5071 and other input devices 5072. A touch panel 5071, also referred to as a touch screen. The touch panel 5071 may include two parts of a touch detection device and a touch controller. Other input devices 5072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in further detail herein.
In the embodiment of the present application, the radio frequency unit 501 receives downlink data from a network side device and then processes the downlink data in the processor 510; in addition, the uplink data is sent to the network side equipment. In general, radio frequency unit 501 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
The memory 509 may be used to store software programs or instructions as well as various data. The memory 509 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area may store an operating system, an application program or instruction (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. In addition, the Memory 509 may include a high-speed random access Memory, and may further include a nonvolatile Memory, wherein the nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
In the embodiments of the present application, the difference between the embodiments is described in detail, and different optimization features between the embodiments can be combined to form a better embodiment as long as the differences are not contradictory, and further description is omitted here in view of brevity of the text.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. A screen assembly of a terminal, comprising: a display screen, a main flexible circuit board M-FPC and a touch screen flexible circuit board TP-FPC, wherein,
the M-FPC is electrically connected with the display screen and arranged on one side of the display screen, which is far away from the display surface;
the TP-FPC is electrically connected with the display screen and arranged on one side of the M-FPC, which is far away from the display screen;
a display driving chip, a first display signal wire and a second display signal wire are arranged on the M-FPC, wherein one end of the first display signal wire and one end of the second display signal wire are respectively and electrically connected with the display driving chip, and the other end of the first display signal wire and the other end of the second display signal wire are respectively and electrically connected with the display screen;
the TP-FPC covers the first display signal trace and the second display signal trace.
2. The screen assembly of claim 1, wherein a transmitting trace and a receiving trace are distributed on the TP-FPC and electrically connected to the display screen, respectively, the transmitting trace directly facing the first display signal trace, and the receiving trace directly facing the second display signal trace.
3. A screen assembly as recited in claim 1 or 2, wherein the first display signal trace and the second display signal trace are connected on a same side of the display screen.
4. A screen assembly as recited in claim 1 or 2, wherein the first display signal trace and the second display signal trace are connected on different sides of the display screen.
5. A screen assembly according to claim 1 or 2,
the M-FPC is also distributed with active signal wires, one end of each active signal wire is electrically connected with the display driving chip, and the other end of each active signal wire is electrically connected with the display screen;
the TP-FPC covers the source signal routing.
6. A screen assembly as recited in claim 5, wherein the TP-FPC has a shield trace disposed thereon, the shield trace being grounded and directly opposite to the source signal trace.
7. A screen assembly as recited in claim 1 or 2, wherein a projected area of the TP-FPC onto the display screen is less than a projected area of the M-FPC onto the display screen.
8. A screen assembly as recited in claim 1 or 2, wherein the M-FPC is further provided with a connector for connecting to a terminal motherboard.
9. The screen assembly according to claim 1 or 2, wherein one end of the first display signal trace and one end of the second display signal trace are electrically connected to two sides of the display driving chip, respectively.
10. A terminal device, characterized in that it comprises a screen assembly according to any one of claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110276629.9A CN113031699A (en) | 2021-03-15 | 2021-03-15 | Screen assembly of terminal and terminal equipment |
| PCT/CN2022/080379 WO2022194047A1 (en) | 2021-03-15 | 2022-03-11 | Screen assembly of terminal, and terminal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110276629.9A CN113031699A (en) | 2021-03-15 | 2021-03-15 | Screen assembly of terminal and terminal equipment |
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| Publication Number | Publication Date |
|---|---|
| CN113031699A true CN113031699A (en) | 2021-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110276629.9A Pending CN113031699A (en) | 2021-03-15 | 2021-03-15 | Screen assembly of terminal and terminal equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113031699A (en) |
| WO (1) | WO2022194047A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022194047A1 (en) * | 2021-03-15 | 2022-09-22 | 维沃移动通信有限公司 | Screen assembly of terminal, and terminal device |
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| CN108366519A (en) * | 2018-01-30 | 2018-08-03 | 深圳天珑无线科技有限公司 | A kind of shielding construction reducing display screen electromagnetic interference |
| CN208489349U (en) * | 2018-08-07 | 2019-02-12 | 珠海市魅族科技有限公司 | Terminal device |
| CN110992834A (en) * | 2019-12-19 | 2020-04-10 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN112416168A (en) * | 2020-11-18 | 2021-02-26 | 云谷（固安）科技有限公司 | Display panel and display device |
| CN112233566A (en) * | 2020-11-23 | 2021-01-15 | 维沃移动通信有限公司 | Display screen and electronic equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022194047A1 (en) * | 2021-03-15 | 2022-09-22 | 维沃移动通信有限公司 | Screen assembly of terminal, and terminal device |
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| WO2022194047A1 (en) | 2022-09-22 |
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