CN113840022A - Middle frame assembly and mobile terminal - Google Patents
Middle frame assembly and mobile terminal Download PDFInfo
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- CN113840022A CN113840022A CN202010586494.1A CN202010586494A CN113840022A CN 113840022 A CN113840022 A CN 113840022A CN 202010586494 A CN202010586494 A CN 202010586494A CN 113840022 A CN113840022 A CN 113840022A
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- light
- middle frame
- display unit
- frame assembly
- sensor
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0277—Details of the structure or mounting of specific components for a printed circuit board assembly
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2250/00—Details of telephonic subscriber devices
- H04M2250/12—Details of telephonic subscriber devices including a sensor for measuring a physical value, e.g. temperature or motion
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Abstract
The application relates to a middle frame assembly and a mobile terminal. This center subassembly includes: a middle frame; the display unit is arranged in the accommodating groove; the light sensing element comprises a light sensor, the side wall of the accommodating groove is provided with an installing groove, and the light sensor is accommodated in the installing groove; and a light shielding member disposed between the light sensor and the display unit, for separating the display unit and the light sensor. In the middle frame assembly, the display unit and the optical sensor are arranged on the middle frame in parallel, and the optical sensor can directly receive the external ambient light through the light sensing part on the cover plate, so that the sensitivity of the optical sensor can be improved. And a light shielding piece is arranged between the optical sensor and the display unit, so that light emitted by the display unit can be prevented from entering the optical sensor, and the light leakage phenomenon is prevented.
Description
Technical Field
The application relates to the technical field of mobile terminals, in particular to a middle frame assembly and a mobile terminal.
Background
The light sensor of the smart phone comprises an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display unit according to the brightness of ambient light, and the proximity sensor can turn off the display unit and/or backlight when the smart phone moves to the ear. At present, the optical sensor is mostly arranged below the display screen, light emitted by the optical sensor needs to penetrate through the display screen, and the light transmittance of the display screen is low, so that the sensitivity of the optical sensor can be influenced. In addition, screen leakage also adversely affects the sensitivity of the photosensor.
Disclosure of Invention
The embodiment of the application provides a middle frame assembly and a mobile terminal to solve the problem that light leakage of a display screen causes lower sensitivity of a light sensor.
A center frame assembly comprising:
a middle frame;
the display unit is arranged in the accommodating groove;
the light sensing element comprises a light sensor, the side wall of the accommodating groove is provided with an installing groove, and the light sensor is accommodated in the installing groove; and
and the shading piece is arranged between the optical sensor and the display unit and used for separating the display unit and the optical sensor.
In the middle frame assembly, the display unit and the optical sensor are arranged on the middle frame in parallel, and the optical sensor can directly receive the external ambient light through the light sensing part on the cover plate, so that the sensitivity of the optical sensor can be improved. And a light shielding piece is arranged between the optical sensor and the display unit, so that light emitted by the display unit can be prevented from entering the optical sensor, and the light leakage phenomenon is prevented.
In one embodiment, the light shielding member includes a light shielding portion fixedly disposed on a sidewall of the accommodating groove to shield the optical sensor.
In one embodiment, the light shielding member further comprises a rubber strip for adhering the light shielding portion to the sidewall.
In one of them embodiment, the shading piece still includes connecting portion, connecting portion and shading portion are the contained angle setting, connecting portion fix locate the diapire of holding tank.
In one embodiment, the bottom wall is provided with a limiting groove for placing the connecting part.
In one embodiment, the depth of the limiting groove is greater than or equal to the thickness of the connecting part.
In one embodiment, the middle frame assembly further comprises a cover plate, the cover plate is attached to the display unit and is overlapped on the middle frame, and the shading portion is abutted to the cover plate.
In one embodiment, the cover plate comprises a non-visible area, the non-visible area is provided with a light sensing part, and the light sensor is arranged opposite to the light sensing part.
In one embodiment, the light sensing element further includes a flexible circuit board, the light sensor is disposed on the flexible circuit board, a mounting portion is disposed on a side of the middle frame opposite to the display unit, and the flexible circuit board is disposed on the mounting portion.
A mobile terminal comprises the middle frame assembly.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a mobile terminal according to an embodiment;
FIG. 2 is a cross-sectional view taken along A-A of FIG. 1;
FIG. 3 is an enlarged view at B in FIG. 2;
FIG. 4 is a diagram of a middle frame of the mobile terminal shown in FIG. 1;
FIG. 5 is a schematic view of the middle frame of FIG. 4 from another perspective;
fig. 6 is an enlarged view at C in fig. 5.
Description of the symbols:
200-mobile terminal, 210-rear case, 100-center component, 10-center, 11-accommodation groove, 11 a-side wall, 11 b-bottom wall, 12-step, 13-installation part, 14-installation groove, 15-spacing groove, 20-display unit, 30-cover plate, 31-visible region, 32-invisible region, 32 a-photosensitive part, 40-photosensitive element, 41-optical sensor, 42-flexible circuit board, 50-shading part, 51-shading part, 52-connecting part
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
As used herein, "terminal device" refers to a device capable of receiving and/or transmitting communication signals including, but not limited to, devices connected via any one or more of the following connections:
(1) via wireline connections, such as via Public Switched Telephone Network (PSTN), Digital Subscriber Line (DSL), Digital cable, direct cable connections;
(2) via a Wireless interface means such as a cellular Network, a Wireless Local Area Network (WLAN), a digital television Network such as a DVB-H Network, a satellite Network, an AM-FM broadcast transmitter.
A terminal device arranged to communicate over a wireless interface may be referred to as a "mobile terminal". Examples of mobile terminals include, but are not limited to, the following electronic devices:
(1) satellite or cellular telephones;
(2) personal Communications Systems (PCS) terminals that may combine cellular radiotelephones with data processing, facsimile, and data Communications capabilities;
(3) radiotelephones, pagers, internet/intranet access, Web browsers, notebooks, calendars, Personal Digital Assistants (PDAs) equipped with Global Positioning System (GPS) receivers;
(4) conventional laptop and/or palmtop receivers;
(5) conventional laptop and/or palmtop radiotelephone transceivers, and the like.
The mobile terminal may include a Radio Frequency (RF) circuit, a memory including one or more computer-readable storage media, an input unit, an audio circuit, a Wireless Fidelity (WiFi) module, a processor including one or more processing cores, and a power supply.
The radio frequency circuit can be used for receiving and transmitting information or receiving and transmitting signals in a conversation process, and particularly, downlink information of a base station is received and then is sent to one or more processors for processing; in addition, data relating to uplink is transmitted to the base station. In general, radio frequency circuits include, but are not limited to, an antenna, at least one Amplifier, a tuner, one or more oscillators, a Subscriber Identity Module (SIM) card, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, the radio frequency circuitry may also communicate with networks and other devices via wireless communications. The wireless communication may use any communication standard or protocol, including but not limited to Global System for Mobile communications (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), email, Short Message Service (SMS), and the like.
The memory may be used to store applications and data. The memory stores an application program containing executable code. The application programs may constitute various functional modules. The processor executes various functional applications and data processing by running the application programs stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the mobile terminal, and the like. Further, the memory may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, the memory may further include a memory controller to provide access to the memory by the processor and the input unit.
The input unit may be used to receive input numbers, character information or user characteristic information, such as a fingerprint, and to generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control. In particular, in one particular embodiment, the input unit may include a touch-sensitive surface as well as other input devices. The touch-sensitive surface, also referred to as a touch display screen or a touch pad, may collect touch operations by a user (e.g., operations by a user on or near the touch-sensitive surface using a finger, a stylus, or any other suitable object or attachment) thereon or nearby, and drive the corresponding connection device according to a predetermined program. Alternatively, the touch sensitive surface may comprise two parts, a touch detection means and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor, and can receive and execute commands sent by the processor.
The audio circuit may provide an audio interface between the user and the mobile terminal through a speaker, a microphone. The audio circuit can convert the received audio data into an electric signal, transmit the electric signal to the loudspeaker, and convert the electric signal into a sound signal by the loudspeaker for outputting; on the other hand, the microphone converts the collected sound signal into an electrical signal, the electrical signal is received by the audio circuit and then converted into audio data, and the audio data is processed by the audio data output processor and then sent to another mobile terminal through the radio frequency circuit or output to the memory for further processing. The audio circuitry may also include an earphone jack to provide communication of a peripheral earphone with the mobile terminal.
Wireless fidelity (WiFi) belongs to short-distance wireless transmission technology, and a mobile terminal can help a user to receive and send e-mails, browse webpages, access streaming media and the like through a wireless fidelity module, and provides wireless broadband internet access for the user.
The processor is a control center of the mobile terminal, connects various parts of the whole mobile terminal by using various interfaces and lines, and executes various functions and processes data of the mobile terminal by running or executing application programs stored in the memory and calling the data stored in the memory, thereby integrally monitoring the mobile terminal. Optionally, the processor may include one or more processing cores; preferably, the processor may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor.
The mobile terminal also includes a power supply to power the various components. Preferably, the power supply may be logically connected to the processor through a power management system, so as to implement functions of managing charging, discharging, and power consumption management through the power management system. The power supply may also include any component of one or more dc or ac power sources, recharging systems, power failure detection circuitry, power converters or inverters, power status indicators, and the like.
Referring to fig. 1, a mobile terminal 200 includes a middle frame assembly 100 according to an embodiment of the present invention.
Referring to fig. 2 and 3, the middle frame assembly 100 includes a middle frame 10, a display unit 20, a cover 30, a light sensor 40 and a light shielding member 50.
The middle frame 10 may be made of metal, such as magnesium alloy, stainless steel, etc. The middle frame 10 may further include a metal portion and a plastic portion, and specifically, the metal portion may be formed first, for example, by stamping to form a magnesium alloy substrate, and then the plastic portion may be formed by injection molding on the magnesium alloy substrate.
The display unit 20 may be used to display information input by or provided to the user and various graphic user interfaces of the mobile terminal 200, which may be configured by graphics, text, icons, video, and any combination thereof. The display unit 20 may include a display panel. Alternatively, the Display panel may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like. Further, the touch-sensitive surface may overlay the display unit 20, and when a touch operation is detected on or near the touch-sensitive surface, the touch operation is transmitted to the processor to determine the type of the touch event, and then the processor provides a corresponding visual output on the display unit 20 according to the type of the touch event. In some embodiments, the touch-sensitive surface may be integrated with the display unit 20 to implement input and output functions.
The main body portion of the middle frame 10 is formed with a receiving groove 11, and the display unit 20 is disposed in the receiving groove 11. In an embodiment, a gap of not less than 0.4mm is formed between the display unit 20 and the sidewall 11a of the receiving groove 11, so as to ensure that the display unit 20 is not damaged by collision with the middle frame 10 when the mobile terminal 200 falls from a high place, and prolong the service life of the mobile terminal 200.
The cover plate 30 may be made of transparent material such as glass and sapphire, and the cover plate 30 is attached to the display unit 20 to protect the display unit 20. It can be understood that an optically Clear Adhesive 31 (OCA) is filled between the cover plate 30 and the display unit 20, and the optically Clear Adhesive 31 is used to adhere the cover plate 30 and the display unit 20 together, and simultaneously prevent air from being mixed between the cover plate 30 and the display unit 20 to affect the display effect. The edge of the middle frame 10 is formed with a step 12, the cover plate 30 is lapped on the step 12, and the step 12 supports and limits the cover plate 30. The cover plate 30 and the middle frame 10 may be assembled together by dispensing on the step 12 of the middle frame 10. Referring to fig. 1, the cover 30 includes a visible area 31 and a non-visible area 32, and the non-visible area 32 is disposed around the visible area 31. The periphery of the cover plate 30 is coated with light-shielding ink to form a non-visible area 32, and an area of the cover plate 30 not provided with light-shielding ink is a visible area 31. The display portion of the display unit 20 is disposed opposite to the viewing area 31 of the cover 30 so that the user can view the screen of the display unit 20 from the outside of the cover 30. The non-visible region 32 of the cover 30 is provided with a light sensing portion 32a, and the light sensor 41 of the light sensing element 40 is disposed opposite to the light sensing portion 32a so that external light can be detected by the light sensor 41 through the light sensing portion 32 a. Specifically, the light-sensing portion 32a is a circular hole, a race track, or a strip.
The light sensing element 40 is disposed on the middle frame 10. The optical sensor 40 includes an optical sensor 41 and a flexible circuit board 42, and the optical sensor 41 is disposed on the flexible circuit board 42. In the present embodiment, the light sensor 41 is located on the same side of the middle frame 10 as the display unit 20, i.e., on the side of the middle frame 10 facing the user. It is understood that the projection of the photosensor 41 on the surface of the cover 30 coincides with the light-sensing portion 32a in the non-visible region 32. The light sensor 41 specifically includes an ambient light sensor that can adjust the brightness of the display unit 20 according to the brightness of ambient light. The mobile terminal 200 further includes a main board (not shown) that serves as a mounting carrier for the processor and other functional modules, and is disposed on a side of the middle frame 10 facing away from the display unit 20. Referring to fig. 4, a mounting portion 13 is disposed on a side of the middle frame 10 opposite to the display unit 20, and the flexible circuit board 42 is disposed on the mounting portion 13, that is, the flexible circuit board 42 and the main board are disposed on the same side of the middle frame 10, so that the flexible circuit board 42 and the main board are electrically connected. Specifically, the flexible circuit board 42 may be electrically connected to the motherboard by a board-to-board connector or a spring plate.
Referring to fig. 3, 5 and 6, the optical sensor 41 is disposed near the edge of the middle frame 10, specifically, the side wall 11a of the accommodating groove 11 is provided with an installation groove 14, and the optical sensor 41 is accommodated in the installation groove 14. The mounting groove 14 penetrates the middle frame 10 in the thickness direction, or does not completely penetrate the middle frame 10. In the assembling process of the light sensing element 40, the flexible circuit board 42 is firstly assembled on the mounting portion 13 of the middle frame 10, the flexible circuit board 42 is electrically connected with the main board, and then one end of the flexible circuit board 42, which is provided with the light sensor 41, penetrates through the middle frame 10 and is placed in the mounting groove 14.
Compared with the light sensor 41 arranged below the display unit 20, the display unit 20 and the light sensor 41 are arranged on the middle frame 10 in parallel, and the light sensor 41 can directly receive the external ambient light through the light sensing part 32a on the cover plate 30, which is beneficial to improving the sensitivity of the light sensor 41.
A light shielding member 50 is disposed between the light sensor 41 and the display unit 20 for separating the display unit 20 and the light sensor 41. Since the side surface of the display unit 20 is opposite to the optical sensor 41, the light emitted from the display unit 20 interferes with the optical sensor 41 to affect the detection of the ambient light by the optical sensor 41, and the optically transparent adhesive 31 disposed between the display unit 20 and the cover 30 also causes the light to leak from the side surface of the display unit 20 to affect the sensitivity of the optical sensor 41. In the present embodiment, the light shielding member 50 is disposed between the display unit 20 and the light sensor 41, and the light shielding member 50 can prevent light emitted from the display unit 20 from entering the light sensor 41, which is beneficial to improving the detection sensitivity of the light sensor 41. It will be appreciated that the shade 50 is made of an opaque material.
The light shielding member 50 includes a light shielding portion 51, and the light shielding portion 51 is fixedly disposed on the sidewall 11a of the accommodating groove 11 to shield the light sensor 41. The light shielding portion 51 is provided opposite to the side surface of the display unit 20, and light leaking from the side surface of the display unit 20 or the optically transparent adhesive 31 is shielded by the light shielding portion 51 and does not enter the optical sensor 41. The light-shielding member 50 further includes a tape for bonding the light-shielding portion 51 to the sidewall 11 a. Further, the light shielding portion 51 abuts against the cover plate 30, in other words, the size of the light shielding portion 51 is larger than the depth of the receiving groove 11, and the light shielding portion 51 interferes with the cover plate 30, thereby completely blocking the side light leakage of the display unit 20. In one embodiment, the light shielding portion 51 includes an opaque hard plate and a soft film, and the hard plate forms a main portion of the light shielding portion 51, so that the light shielding portion 51 has a certain strength and is convenient to assemble with the middle frame 10. The soft membrane material is arranged above the hard plate material and is used for abutting against the cover plate 30, the soft membrane material can deform and play a role in buffering, and the damage to the cover plate 30 caused by the direct contact of the hard plate material and the cover plate 30 is avoided. Specifically, the hard plate and the soft film can be made of polyethylene terephthalate (PET).
The whole thickness of the light shielding part 51 is relatively thin, and in one embodiment, the thickness of the light shielding part 51 is 0.09mm, so that the internal space of the middle frame 10 is saved, and the screen ratio is favorably improved.
The light shielding member 50 further includes a connecting portion 52, the connecting portion 52 and the light shielding portion 51 are disposed at an included angle, and the connecting portion 52 is fixed on the bottom wall 11b of the accommodating groove 11. The connecting portion 52 and the light shielding portion 51 are perpendicular to each other, or the connecting portion 52 and the light shielding portion 51 form an included angle of 90 ± 1 °. The arrangement of the connecting portion 52 is beneficial to improving the connecting strength between the shading member 50 and the middle frame 10, and the shading effect is prevented from being influenced by the movement of the position of the shading member 50. Specifically, the connecting portion 52 may be fixed to the bottom wall 11b of the accommodating groove 11 by bonding or screwing.
The bottom wall 11b is opened with a limiting groove 15 for placing the connecting portion 52. The limiting groove 15 can limit the installation position of the connecting portion 52, and when the light shielding member 50 is installed, only the edge of the connecting portion 52 needs to be aligned with the limiting groove 15. The depth of the limiting groove 15 is greater than or equal to the thickness of the connecting portion 52, so as to prevent the connecting portion 52 from occupying the inner space of the accommodating groove 11 and affecting the assembly of the display unit 20. In one embodiment, the connecting portion 52 is adhered to the limiting groove 15 by a rubber strip, and the depth of the limiting groove 15 is substantially the same as the total thickness of the connecting portion 52 and the rubber strip. In other embodiments, the connecting portion 52 is fixed in the limiting groove 15 by screwing, and the depth of the limiting groove 15 is the same as the thickness of the connecting portion 52.
The mobile terminal 200 further comprises a rear case 210, and the rear case 210 is disposed at a side of the middle frame 10 facing away from the display unit 20.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A center frame assembly, comprising:
a middle frame;
the display unit is arranged in the accommodating groove;
the light sensing element comprises a light sensor, the side wall of the accommodating groove is provided with an installing groove, and the light sensor is accommodated in the installing groove; and
and the shading piece is arranged between the optical sensor and the display unit and used for separating the display unit and the optical sensor.
2. The middle frame assembly according to claim 1, wherein the light shielding member includes a light shielding portion fixed to a sidewall of the receiving groove to shield the light sensor.
3. The center frame assembly of claim 2, wherein the shade further comprises a glue strip for adhering the shade to the sidewall.
4. The middle frame assembly according to claim 2, wherein the shading member further comprises a connecting portion, the connecting portion and the shading portion are disposed at an included angle, and the connecting portion is fixedly disposed on the bottom wall of the accommodating groove.
5. The middle frame assembly according to claim 4, wherein the bottom wall defines a retaining groove for receiving the connecting portion.
6. The middle frame assembly according to claim 5, wherein the depth of the stopper groove is greater than or equal to the thickness of the connecting portion.
7. The middle frame assembly according to claim 2, further comprising a cover plate attached to the display unit and overlapping the middle frame, wherein the shade portion abuts the cover plate.
8. The center frame assembly according to claim 7, wherein the cover plate includes a non-visible region, the non-visible region is provided with a light-sensing portion, and the light sensor is disposed opposite to the light-sensing portion.
9. The middle frame assembly as claimed in claim 1, wherein the light sensor further comprises a flexible circuit board, the light sensor is disposed on the flexible circuit board, a mounting portion is disposed on a side of the middle frame opposite to the display unit, and the flexible circuit board is disposed on the mounting portion.
10. A mobile terminal, characterized in that it comprises a middle frame assembly according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010586494.1A CN113840022A (en) | 2020-06-24 | 2020-06-24 | Middle frame assembly and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010586494.1A CN113840022A (en) | 2020-06-24 | 2020-06-24 | Middle frame assembly and mobile terminal |
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| Publication Number | Publication Date |
|---|---|
| CN113840022A true CN113840022A (en) | 2021-12-24 |
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| CN202010586494.1A Pending CN113840022A (en) | 2020-06-24 | 2020-06-24 | Middle frame assembly and mobile terminal |
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