CN109753177A - A kind of middle-frame mould group - Google Patents

A kind of middle-frame mould group Download PDF

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Publication number
CN109753177A
CN109753177A CN201810603253.6A CN201810603253A CN109753177A CN 109753177 A CN109753177 A CN 109753177A CN 201810603253 A CN201810603253 A CN 201810603253A CN 109753177 A CN109753177 A CN 109753177A
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CN
China
Prior art keywords
detection sensor
hole
target
press detection
center
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CN201810603253.6A
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Chinese (zh)
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CN109753177B (en
Inventor
丁雪冬
肖燕
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北京字节跳动网络技术有限公司
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Priority to CN201810603253.6A priority Critical patent/CN109753177B/en
Publication of CN109753177A publication Critical patent/CN109753177A/en
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Publication of CN109753177B publication Critical patent/CN109753177B/en

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Abstract

The embodiment of the present application discloses a kind of middle-frame mould group, the middle-frame mould group is applied in terminal, and the middle-frame mould group is tightly attached at the back side of the display screen of the terminal, the middle-frame mould group is used to support the display screen, the middle-frame mould group includes center and press detection sensor: the center includes multiple through-holes, and the multiple through-hole is distributed according to preset rules;Target through-hole is placed with press detection sensor, and the press detection sensor is tightly attached to the back side of the display screen by the target through-hole, and for detecting pressure value suffered by the display screen;Wherein, the target through-hole is any one in the multiple through-hole.In this way, when disabler occurs in press detection sensor, during maintenance, it only needs to be replaced the press detection sensor in middle-frame mould group, without replacing entire display module, avoids and replace more device, to greatly reduce maintenance cost.

Description

A kind of middle-frame mould group

Technical field

This application involves technical field of electronic equipment, more particularly to a kind of middle-frame mould group.

Background technique

Currently, the display module of 3D touch function can not only incude the position of user's finger contacts display screen, moreover it is possible to feel Answer the pressure of finger pressing display screen.And the display module in mobile terminal with 3D touch function mainly passes through capacitive sensing Device or resistance sensor detect pressure value suffered by display screen in display module.Wherein, capacitance type sensor is basis The variation of sensor sensing layer and the capacitance with reference to caused by the air gap reduction between stratum, calculates in display module and shows The size for the pressure that display screen is subject to;Resistance sensor is usually a piece of resistance film, and specifically, which is affixed on display The back side of display screen in mould group, the resistance film can deformation occurs under external force, the meeting when deformation occurs for the resistance film Cause resistance value to change, the size of pressure value is calculated so as to the variation according to the resistance value.

In general, capacitance type sensor needs the entire plane of the center in display module to be used as with reference to ground, furthermore, it is desirable to one Fixed the air gap is as deformation space;If subtle shape occurs for the structure in use, in display module, it is possible to make electricity The performance of capacitive pick-up is degenerated or even disabler, for example the air gap that capacitance type sensor generally requires is 0.2mm, once the structural deformation gap in display module is 0, the pressure sensitive function of capacitance type sensor will fail.And it is electric Resistive sensor is sensitive to environment temperature during test data, if environment temperature is ineligible to be easy to cause test Value drift.Obviously, capacitance type sensor and resistance sensor are higher for the detection environmental requirement of pressure value, are easy to happen electricity There is the case where disabler in capacity sensor or resistance sensor.

However, capacitance type sensor and resistance sensor require and show mould due in traditional display module Group becomes one, in this way, needing will be in mobile terminal when disabler occur in resistance sensor and capacitance type sensor Entire display module replaced, cause replacement device it is more, increase maintenance cost.

Summary of the invention

In order to solve the above-mentioned technical problem, this application provides a kind of middle-frame mould groups, to wish to work as press detection sensor When there is disabler, during maintenance, it is only necessary to the press detection sensor in middle-frame mould group is replaced, Without replacing entire display module, avoids and replace more device, to greatly reduce maintenance cost.

The embodiment of the present application discloses following technical solution:

The embodiment of the present application provides a kind of middle-frame mould group, and the middle-frame mould group is applied in terminal, and the terminal The middle-frame mould group is tightly attached at the back side of display screen, and the middle-frame mould group is used to support the display screen, the middle-frame mould group packet Include center and press detection sensor:

The center includes multiple through-holes, and the multiple through-hole is distributed according to preset rules;

Target through-hole is placed with press detection sensor, and the press detection sensor is tightly attached to by the target through-hole The back side of the display screen, and for detecting pressure value suffered by the display screen;Wherein, the target through-hole is described more Any one in a through-hole.

Optionally, gasket, and the gasket are provided between the press detection sensor and the back side of the display screen Precompression between the press detection sensor meets preset condition.

Optionally, it is 1 newton to 3 newton that the preset condition, which includes the precompression,.

Optionally, the multiple through-hole includes three through-holes or four through-holes.

Optionally, the preset rules include that the multiple through-hole is symmetrical along the center line of the center.

Optionally, if the multiple through-hole includes four through-holes, the preset rules include that four through-holes are set respectively Set first object position, the second target position, third target position and the 4th target position in the center;

Wherein, the first object position, second target position, the third target position and the 4th target Position is determined according to the trisection point on the long boundary of the center and the wide-bound trisection point of the center.

Optionally, the diameter of each of the multiple through-hole through-hole is 4 millimeters.

Optionally, the middle-frame mould group further includes circuit board and processing chip;

The both ends of the circuit board are connected with the press detection sensor, the processing chip respectively;

The circuit board is for sending the output signal of the press detection sensor to the processing chip;

The processing chip is used to the output signal being converted to digital signal.

Optionally, the processing chip is micro-control unit MCU.

Optionally, the press detection sensor is micro-electromechanical system (MEMS).

The middle-frame mould group provided by the embodiment of the present application it can be seen from above-mentioned technical proposal may include center and pressure Detection sensor.Wherein, which includes multiple through-holes, and multiple through-hole is distributed according to preset rules.In multiple through-hole Each through-hole is provided with press detection sensor, and press detection sensor can be tightly attached to display by the through-hole in center The back side of display screen in mould group, i.e., in this application, press detection sensor in middle-frame mould group not with display module collection Integrally.In this way, when disabler occurs in press detection sensor, during maintenance, it is only necessary to will be in middle-frame mould group Press detection sensor replaced, without replacing entire display module, avoid and replace more device, from And greatly reduce maintenance cost.

Detailed description of the invention

In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of application without any creative labor, may be used also for those of ordinary skill in the art To obtain other drawings based on these drawings.

Fig. 1 is a kind of structural schematic diagram of middle-frame mould group provided by the embodiments of the present application;

Fig. 2 is a kind of structural schematic diagram of middle-frame mould group provided by the embodiments of the present application;

Fig. 3 is a kind of structural schematic diagram of middle-frame mould group provided by the embodiments of the present application;

Fig. 4 is a kind of structural schematic diagram of middle-frame mould group provided by the embodiments of the present application.

Specific embodiment

With reference to the accompanying drawing, embodiments herein is described.

In traditional display module, capacitance type sensor and resistance sensor require to be integrated into one with display module Body, in this way, needing when disabler occur in resistance sensor and capacitance type sensor by the entire display in mobile terminal Mould group is replaced, and is caused the device of replacement more, is increased maintenance cost.

For this purpose, the embodiment of the present application provides a kind of middle-frame mould group, to wish function mistake occur when press detection sensor When effect, during maintenance, it is only necessary to be replaced the press detection sensor in middle-frame mould group, without more Entire display module is changed, avoids and replaces more device, to greatly reduce maintenance cost.

In the present embodiment, it will be described from the angle of middle-frame mould group, which, which specifically can be set, has In the terminal of display screen, such as mobile phone, tablet computer, palm PC (Personal Digital Assistant, PDA), pen Remember this computer etc..

Fig. 1 is a kind of structural schematic diagram of middle-frame mould group provided by the present application, and the middle-frame mould group includes center 200 and pressure Force detection sensor 300, the middle-frame mould group is applied in terminal, and institute is tightly attached at the back side of the display screen 100 of the terminal Middle-frame mould group is stated, for example, the center 200 in the middle-frame mould group, the middle-frame mould group are tightly attached in the back side of the display screen 100 It is used to support the display screen 100.It should be noted that in one possible implementation, the display screen 100 can be AMOLED display screen.

In the present embodiment, center 100 can be the metal plate for mounting related components and supporting display screen 100, in Frame 100 may include multiple through-holes 400.It in one possible implementation, may include three through-holes 400 in center 100 Or four through-holes 400, also, the diameter of each of this multiple through-hole 400 through-hole be can be with 4 millimeters.Also, center 100 In multiple through-holes 400 can be distributed according to preset rules, specific preset rules will describe in detail later.

It should be noted that for ease of description, any one through-hole in multiple through-holes of center 100 can be referred to as mesh Mark through-hole.Target through-hole can be placed with press detection sensor 300, also, press detection sensor 300 can pass through the mesh Mark through-hole is tightly attached to the back side of display screen 100.Wherein, press detection sensor 300 can be used for detecting suffered by display screen 100 Pressure value.In one possible implementation, press detection sensor 300 can be MEMS (Micro- Electro-Mechanical System, MEMS), the structural deformation as detected by MEMS is micron level, therefore works as pressure When detection sensor 300 is using MEMS, the precision of pressure value detected by press detection sensor can be improved.

It is understood that the press detection sensor 300 in the present embodiment is not integrated with center 200, display screen 100 One, but be to be detachably connected with center 200, display screen 100, in this way, can only be examined to the pressure in middle-frame mould group It surveys sensor 300 to be dismantled to be replaced, without replacing entire display screen 300 or center 200.

The middle-frame mould group provided by the embodiment of the present application it can be seen from above-mentioned technical proposal may include 200 He of center Press detection sensor 300.Wherein, which includes multiple through-holes 400, and multiple through-hole 400 is distributed according to preset rules. Each of multiple through-hole through-hole is provided with press detection sensor 300, and press detection sensor 300 can be in Through-hole 400 in frame 200 is tightly attached to the back side of the display screen 100 in display module, i.e., in this application, the pressure in middle-frame mould group Force detection sensor 300 is not integrated with display screen 100.In this way, when there is disabler in press detection sensor 400 When, during maintenance, it is only necessary to the press detection sensor 400 in middle-frame mould group is replaced, without Entire display screen 100 is replaced, avoids and replaces more device, to greatly reduce maintenance cost.

Next, how the multiple through-holes 400 introduced in center 100 are distributed according to preset rules.In the present embodiment In a kind of possible implementation, preset rules may include that multiple through-holes in center 100 symmetrically divide along the center line of center Cloth, for example, multiple through-hole can along the long boundary of center 100 center line it is symmetrical, can be along the width of center 100 The center line on boundary is symmetrical or symmetrically divides along the center line and wide-bound center line on the long boundary of center 100 simultaneously Cloth.

As an example, as shown in Fig. 2, this four through-holes can be respectively set if center 100 includes four through-holes First object position A, the second target position B, third target position C and the 4th target position D in center 100.

Wherein, first object position A, second target position B, the third target position C and the 4th target position D It is to be determined according to the trisection point on the long boundary of the center 100 and the wide-bound trisection point of the center 100.Specifically Ground can first determine that the trisection point of the first broadside circle (Ji Shang broadside circle) is respectively a point and b point, and the second broadside circle is (wide under i.e. Boundary) trisection point be respectively g point and h point, the trisection point of the first long boundary (i.e. left long boundary) is respectively c point and e point, The trisection point of second long boundary (i.e. right long boundary) is respectively d point and f point;It is then possible to which a point and g point are connected to form line Section ag, can be connected to form line segment bh for b point and h point, c point and d point are connected to form line segment cd, e point can be connected with f point Form line segment ef;Then, can be using the intersection point of line segment ag and line segment cd as first object position A, it can be by line segment bh and line The intersection point of section cd, can be using the intersection point of line segment ag and line segment ef as third target position C as the second target position B, can be with Using the intersection point of line segment bh and line segment ef as the 4th target position D.

It is emphasized that in practical applications, since center 100 may be mounted with multiple components, and these Component is already installed on first object position, the second target position, third target position and/or the 4th target position, that , four through-holes in center 100 can be separately positioned on first object position, the second target position, third target position and/ Or the 4th around target position.In addition, if center 100 includes three through-holes, then, these three through-holes can be separately positioned on On any three target positions in first object position, the second target position, third target position and the 4th target position or Around any three target positions;If center 100 include be greater than four through-holes, then, this multiple through-hole can be respectively set On first object position, the second target position, third target position and the 4th target position or the week of this four target positions It encloses.

It should be noted that the pressure detecting passes when press detection sensor is tightly attached to the back side of display screen by through-hole There may be the gap in structure between sensor and display screen, in this way, will lead to detected by the press detection sensor Pressure value inaccuracy.

So in a kind of implementation of the embodiment of the present application, in order to be detected by press detection sensor During pressure suffered by display screen, the accuracy for the pressure value that press detection sensor detects is improved.Such as Fig. 3 institute Show, gasket 500 can be set between press detection sensor 300 and the back side of display screen 100, for example gasket 500 can be Rubber sheet gasket.

It should be noted that the mistake of gasket 500 is arranged between press detection sensor 300 and the back side of display screen 100 Cheng Zhong, the precompression between gasket 500 and press detection sensor 300 can cover assembling tolerance so that gasket 500 with Precompression between press detection sensor meets preset condition, for example, preset condition may include gasket 500 and pressure detecting Precompression between sensor 300 is 1 newton (1N) to 3 newton (3N).It is emphasized that when needing to pass for pressure detecting When sensor 300 carries out calibration test, calibration can be tied according to the precompression between gasket 500 and press detection sensor 300 Fruit is adjusted, can eliminate influence of the precompression to calibration test.

It is understood that when the precompression between gasket 500 and press detection sensor 300 meets preset condition, The back side of press detection sensor 300 and display screen 100 can be made to be in close contact, i.e. press detection sensor 300 and display There is no the gaps in structure between the back side of screen 100, so as to improve pressure detected by press detection sensor 300 The accuracy of value.

In a kind of implementation of the embodiment of the present application, as shown in figure 4, the middle-frame mould group can also include circuit board 600 and processing chip 700.

Wherein, the both ends of circuit board 600 can be connected with press detection sensor 300, processing chip respectively, in this way, Circuit board 600 can be used for sending the output signal of press detection sensor 300 to processing chip 700.A kind of possible In implementation, circuit board 600 can be flexible circuit board (Flexible Printed Circuit, FPC).

Since the output signal that press detection sensor 300 is usually exported is analog signal, and the processor of terminal institute The signal of processing is digital signal, therefore when the output signal that press detection sensor 300 is exported is analog signal, it can be with Digital signal is converted analog signals by handling chip 700, i.e. processing chip 700 can be used for press detection sensor 300 output signal is converted to digital signal, in order to which the processor in terminal can be determined according to the digital signal after conversion The variation of pressure value suffered by display screen 100, so as to calculate the pressure that user presses display screen 100.Wherein, one In the possible implementation of kind, processing chip 700 can be micro-control unit (Micro Control Unit, MCU).

Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above method embodiment can pass through The relevant hardware of program instruction is completed, and foregoing routine can be stored in a computer readable storage medium, which exists When execution, step including the steps of the foregoing method embodiments is executed;And storage medium above-mentioned can be at least one in following media Kind: read-only memory (English: read-only memory, abbreviation: ROM), RAM, magnetic or disk etc. are various to be can store The medium of program code.

It should be noted that all the embodiments in this specification are described in a progressive manner, each embodiment it Between same and similar part may refer to each other, each embodiment focuses on the differences from other embodiments. For equipment and system embodiment, since it is substantially similar to the method embodiment, so describe fairly simple, The relevent part can refer to the partial explaination of embodiments of method.Equipment and system embodiment described above is only schematic , wherein unit may or may not be physically separated as illustrated by the separation member, it is shown as a unit Component may or may not be physical unit, it can and it is in one place, or may be distributed over multiple networks On unit.Some or all of the modules therein can be selected to achieve the purpose of the solution of this embodiment according to the actual needs. Those of ordinary skill in the art can understand and implement without creative efforts.

The above, only a kind of specific embodiment of the application, but the protection scope of the application is not limited thereto, Within the technical scope of the present application, any changes or substitutions that can be easily thought of by anyone skilled in the art, Should all it cover within the scope of protection of this application.Therefore, the protection scope of the application should be with scope of protection of the claims Subject to.

Claims (10)

1. a kind of middle-frame mould group, which is characterized in that the middle-frame mould group is applied in terminal, and the back of the display screen of the terminal The middle-frame mould group is tightly attached in face, and the middle-frame mould group is used to support the display screen, and the middle-frame mould group includes center and pressure Force detection sensor:
The center includes multiple through-holes, and the multiple through-hole is distributed according to preset rules;
Target through-hole is placed with press detection sensor, and the press detection sensor is tightly attached to described by the target through-hole The back side of display screen, and for detecting pressure value suffered by the display screen;Wherein, the target through-hole is the multiple logical Any one in hole.
2. the method according to claim 1, wherein the back side of the press detection sensor and the display screen Between be provided with gasket, and the precompression between the gasket and the press detection sensor meets preset condition.
3. according to the method described in claim 2, it is characterized in that, it is 1 newton to 3 that the preset condition, which includes the precompression, Newton.
4. method according to claim 1 to 3, which is characterized in that the multiple through-hole includes three through-holes or four A through-hole.
5. method according to claim 1 to 3, which is characterized in that the preset rules include the multiple through-hole Center line along the center is symmetrical.
6. method according to claim 1 to 3, which is characterized in that if the multiple through-hole includes four through-holes, The preset rules include four through-holes be separately positioned in the center first object position, the second target position, Third target position and the 4th target position;
Wherein, the first object position, second target position, the third target position and the 4th target position It is to be determined according to the trisection point on the long boundary of the center and the wide-bound trisection point of the center.
7. method according to claim 1 to 3, which is characterized in that each of the multiple through-hole through-hole Diameter is 4 millimeters.
8. method according to claim 1 to 3, which is characterized in that the middle-frame mould group further includes circuit board and place Manage chip;
The both ends of the circuit board are connected with the press detection sensor, the processing chip respectively;
The circuit board is for sending the output signal of the press detection sensor to the processing chip;
The processing chip is used to the output signal being converted to digital signal.
9. according to the method described in claim 8, it is characterized in that, the processing chip is micro-control unit MCU.
10. method according to claim 1 to 3, which is characterized in that the press detection sensor is micro electronmechanical System MEMS.
CN201810603253.6A 2018-06-12 2018-06-12 Middle frame module CN109753177B (en)

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CN204652340U (en) * 2015-06-05 2015-09-16 深圳纽迪瑞科技开发有限公司 Pressure sensitive press-key structure and there is the terminal equipment of this pressure sensitive press-key structure
CN105426016A (en) * 2015-12-31 2016-03-23 华勤通讯技术有限公司 Mobile terminal and pressure sensing device thereof
CN205121520U (en) * 2015-11-06 2016-03-30 惠州Tcl移动通信有限公司 Display device and electronic apparatus containing same
CN105446569A (en) * 2015-12-31 2016-03-30 华勤通讯技术有限公司 Mobile terminal and capacitance pressure sensing device thereof
CN106169705A (en) * 2016-09-30 2016-11-30 国网河南省电力公司南阳供电公司 A kind of Intelligent transformer maintenance integrated apparatus
CN206489535U (en) * 2016-10-08 2017-09-12 南昌欧菲光科技有限公司 Touch display unit
CN107193412A (en) * 2017-04-27 2017-09-22 广东欧珀移动通信有限公司 Display screen, display device and mobile terminal

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204652340U (en) * 2015-06-05 2015-09-16 深圳纽迪瑞科技开发有限公司 Pressure sensitive press-key structure and there is the terminal equipment of this pressure sensitive press-key structure
CN205121520U (en) * 2015-11-06 2016-03-30 惠州Tcl移动通信有限公司 Display device and electronic apparatus containing same
CN105426016A (en) * 2015-12-31 2016-03-23 华勤通讯技术有限公司 Mobile terminal and pressure sensing device thereof
CN105446569A (en) * 2015-12-31 2016-03-30 华勤通讯技术有限公司 Mobile terminal and capacitance pressure sensing device thereof
CN106169705A (en) * 2016-09-30 2016-11-30 国网河南省电力公司南阳供电公司 A kind of Intelligent transformer maintenance integrated apparatus
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CN107193412A (en) * 2017-04-27 2017-09-22 广东欧珀移动通信有限公司 Display screen, display device and mobile terminal

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