CN106873826A - Display device with pressure-sensing function - Google Patents
Display device with pressure-sensing function Download PDFInfo
- Publication number
- CN106873826A CN106873826A CN201710032464.4A CN201710032464A CN106873826A CN 106873826 A CN106873826 A CN 106873826A CN 201710032464 A CN201710032464 A CN 201710032464A CN 106873826 A CN106873826 A CN 106873826A
- Authority
- CN
- China
- Prior art keywords
- insulating barrier
- module
- display device
- electrode
- sensing
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
Abstract
A kind of display device, including display module and pressure-sensing module, the pressure-sensing module include the reference electrode, the first insulating barrier, the first sensing electrode, the second insulating barrier and the second sensing electrode that are cascading；The display module includes electric conductor, and the reference electrode is any electric conductor in the display module；First insulating barrier and second insulating barrier are respectively provided with elasticity；First insulating barrier includes spaced multiple projections, and gap is provided with the second insulating barrier correspondence each projection；The reference electrode, first insulating barrier and first sensing electrode coordinate the first electric capacity of composition；First sensing electrode, second insulating barrier and second sensing electrode are constituted and coordinate the second electric capacity；The display device carries out pressure-sensing according to the capacitance variation of the first electric capacity and the second electric capacity.
Description
Technical field
The present invention relates to display device, more particularly to the display device of pressure-sensing function.
Background technology
In recent years, pressure-sensing function is widely used in display field, and display device can integrate pressure-sensing
Function realizes specific function (such as Home key of mobile phone) to sense the pressure of staff touch.Pressure-sensing function generally passes through
Integration capacitance structure realizes in a display device, when finger is pressed, the distance between sensing electrode of the capacitance structure
Change, corresponding electric signal is produced so as to cause electric capacity to change.In the prior art, generally with sky between sensing electrode
As medium, but in actual manufacturing process, the presence for assembling tolerance can cause the interelectrode actual range of capacitive sensing to gas
Less than predetermined value, the deformation quantity for even less than actually pushing, this greatly reduces the sensitivity of pressure-sensing.
The content of the invention
In view of the foregoing, it is necessary to provide a kind of display device for integrating pressure-sensing function, the display device has
Pressure-sensing sensitivity higher.
A kind of display device, including display module and pressure-sensing module, the pressure-sensing module include stacking gradually
The reference electrode of setting, the first insulating barrier, the first sensing electrode, the second insulating barrier and the second sensing electrode；The display module
Including electric conductor, the reference electrode is any electric conductor in the display module；First insulating barrier and described second
Insulating barrier is respectively provided with elasticity；First insulating barrier includes spaced multiple projections, and the second insulating barrier correspondence is described
Gap is provided with each projection；The reference electrode, first insulating barrier and first sensing electrode coordinate composition first
Electric capacity；First sensing electrode, second insulating barrier and second sensing electrode are constituted and coordinate the second electric capacity；It is described aobvious
Showing device carries out pressure-sensing according to the capacitance variation of the first electric capacity and the second electric capacity.
Display device of the invention uses the resilient insulating barrier of tool as the dielectric layer of electric capacity, it is ensured that sensing electrode and ginseng
The spacing size between electrode is examined, the pressure that assembling tolerance causes sensing electrode too small with reference electrode spacing and causes effectively is solved
The problem of power sensing sensitivity reduction；Simultaneously using double capacitances in series sensing architectures, it is provided with the first insulating barrier of projection and is provided with
Second insulating barrier in gap is worked in coordination, and further increases the sensitivity of pressure-sensing.
Brief description of the drawings
Fig. 1 is the generalized section of the display device of first embodiment of the invention.
Fig. 2 is the structural representation of pressure-sensing module of the invention.
Fig. 3 is the generalized section of the display device of second embodiment of the invention.
Main element symbol description
Following specific embodiment will further illustrate the present invention with reference to above-mentioned accompanying drawing.
Specific embodiment
Fig. 1 is referred to, Fig. 1 is the generalized section of the display device 1 of first embodiment of the invention.The display device 1
Including the cover plate 11, display module 12, the first insulating barrier 34, the first sensing electrode 31, the second insulating barrier 35, second that stack gradually
The center 14 of sensing electrode 32 and.First insulating barrier 34 includes a body 341 and is arranged on the body 341 near first
The projection 340 on the surface of sensing electrode 31.Gap 350 is provided with each projection 340 of the correspondence of second insulating barrier 35.
That is, projection of the described projection 340 on the second insulating barrier 35 is located in the gap 35.In the present embodiment, the projection 340
It is hemispherical.The projection 340 can also be other shapes, such as column.It is preferred that first insulating barrier 34 and described second exhausted
Edge layer 35 is elastomer, can be the resilient insulating resin of tool or foam.When first insulating barrier 34 is pressed, institute
State extrudable first sensing electrode 31 of projection 340 and bring it about deformation and raised to gap 350.It is preferred that the gap 350
The projection 340 corresponding to accommodating is sized to, can be stretched into when the projection 340 is under pressure in corresponding gap 350.
In the present embodiment, the display module 12 is liquid crystal display module, and the display module 12 includes a liquid crystal surface
The backlight module 22 of plate 21 and.The liquid crystal panel 21 is provided with public electrode (not shown) and pixel electrode (not shown), institute
State and formed between public electrode and the pixel electrode driving electric field driving liquid crystal molecule rotation, and then realize that picture shows.Institute
Backlight module 22 is stated for providing the light source of the display picture of the display device 1.
Fig. 2 is referred to, Fig. 2 is the structural representation of pressure-sensing module of the invention.First insulating barrier 34, first
Sensing electrode 31, the second insulating barrier 35, the second sensing electrode 32 and a reference electrode 36 constitute a pressure-sensing module 13.This
In embodiment, the public electrode (not shown) in the display module 12 is set to the reference electrode 36.At other
In embodiment, any electric conductor in the display module 12 can be set to the reference electrode 36, as described pixel electrode or
Any electric conductor on the backlight module 22.The reference electrode 36, the first insulating barrier 34 and the first sensing electrode 31 coordinate
The first electric capacity C1 is constituted, first sensing electrode 31, the second insulating barrier 35 and the second sensing electrode 32 coordinate the electricity of composition second
Hold C2.The first electric capacity C1 and the second electric capacity C2 shares the first sensing electrode 31, the electricity of the first electric capacity C1 and second
Hold C2 to be connected in series.
When the cover plate 11 is pressed, first insulating barrier 34 is pressurized the direction of backward first sensing electrode 31
Extruding, the projection 340 extrudes first sensing electrode 31 and brings it about deformation and to the inner process of gap 350, when pressure compared with
When big, the projection 340 can be made to be fully inserted into gap 350, i.e., described reference electrode 36 and first sensing electrode 31, institute
The spacing stated between the first sensing electrode 31 and second sensing electrode 32 changes, so the first electric capacity C1 and
The capacitance of the second electric capacity C2 changes.The pressure-sensing module 13 is according to the first electric capacity C1 and second electric capacity
The change of the capacitance of C2 carries out pressure-sensing, output pressure sensing signal.
Ground is changed, first insulating barrier 34 only includes spaced multiple projections 340, first insulating barrier 34
The backlight module 22 is attached near the surface of first sensing electrode 31.
Change ground, the display module 12 or other display modules, such as OLED display modules.When the display mould
When group 12 is OLED display modules, the reference electrode is any electric conductor in the OLED display modules.
Ground is changed, the display device 1 may also include a touch module, and the touch module can be integrated in the display
In module 12, may also set up between the display module 12 and the cover plate 11.
The tolerance of the present embodiment control be mainly reflected in the control backlight module 22 and second sensing electrode 32 it
Between distance, by being provided with first insulating barrier 34 and institute between the backlight module 22 and second sensing electrode 32
The second insulating barrier 35 is stated, can ensure described by designing the thickness of first insulating barrier 34 and second insulating barrier 35
The distance between backlight module 22 and described second sensing electrode 32 are not less than predetermined value and are actually pushed to meet the need of deformation quantity
Will；Simultaneously using double capacitances in series frameworks, first insulating barrier 34 and the second insulating barrier for being provided with gap 350 of projection 340 are provided with
35 work in coordination, and further increase the sensitivity of pressure-sensing.
Fig. 3 is referred to, Fig. 3 is the generalized section of the display device 2 of second embodiment of the invention.The display device 2
Structure with the display device 1 is essentially identical, differs only in the pressure-sensing module 13 and the display module 12
Relative position is different, and in the present embodiment, structure of the pressure-sensing module 13 in addition to the reference electrode is respectively positioned on institute
State between liquid crystal panel 21 and the backlight module 22.For convenience of description, it is hereinafter first with structure identical in first embodiment
Part continues to use the component symbol in first embodiment.
Specifically, second sensing electrode 32 is close to the surface of the liquid crystal panel 21 located at the backlight module 22.
In the present embodiment, first insulating barrier 34 is attached to the liquid crystal panel 21 near the surface of the backlight module 22.
In other embodiments, first insulating barrier 34 can also be attached to first sensing electrode 31 near the liquid crystal panel 21
Surface.
Public electrode (not shown) in the liquid crystal panel 21 is set to the reference electrode 36, in other embodiments
In, any electric conductor in the liquid crystal panel 21 can be set to the reference electrode 36, such as pixel electrode.So as to the reference
Electrode 36, first insulating barrier 34, first sensing electrode 31, second insulating barrier 35 and second sensing electrode
32 constitute the pressure-sensing module 13.The reference electrode 36, first insulating barrier 34 and first sensing electrode 31
Coordinate and constitute the first electric capacity C1, first sensing electrode 31, second insulating barrier 35 and second sensing electrode 32 are matched somebody with somebody
Close and constitute the second electric capacity C2.The first electric capacity C1 and the second electric capacity C2 share first sensing electrode 31, described
One electric capacity C1 and the second electric capacity C2 are connected in series.
When the cover plate 11 is pressed, first insulating barrier 34 is pressurized the direction of backward first sensing electrode 31
Extruding, the projection 340 extrudes first sensing electrode 31 and brings it about deformation and to the inner process of gap 350, when pressure compared with
When big, the projection 340 can be made to be fully inserted into gap 350, i.e., described reference electrode 36 and first sensing electrode 31, institute
The spacing stated between the first sensing electrode 31 and second sensing electrode 32 changes, so the first electric capacity C1 and
The capacitance of the second electric capacity C2 changes.The pressure-sensing module 13 is according to the first electric capacity C1 and second electric capacity
The change of the capacitance of C2 carries out pressure-sensing, output pressure sensing signal.
Ground is changed, first insulating barrier 34 only includes spaced multiple projections 340, first insulating barrier 34
The backlight module 22 is attached near the surface of first sensing electrode 31.
Ground is changed, the display device 2 may also include a touch module, and the touch module can be integrated in the display
In module 12, may also set up between the display module 12 and the cover plate 11.
The tolerance of the present embodiment control be mainly reflected in the control liquid crystal panel 21 and second sensing electrode 32 it
Between distance, by being provided with first insulating barrier 34 and institute between the liquid crystal panel 21 and second sensing electrode 32
The second insulating barrier 35 is stated, can ensure described by designing the thickness of first insulating barrier 34 and second insulating barrier 35
The distance between liquid crystal panel 21 and described second sensing electrode 32 are not less than predetermined value and are actually pushed to meet the need of deformation quantity
Will；Simultaneously using double capacitances in series frameworks, first insulating barrier 34 and the second insulating barrier for being provided with gap 350 of projection 340 are provided with
35 work in coordination, and further increase the sensitivity of pressure-sensing.
The preferred embodiments of the present invention already described above, but those skilled in the art once know basic creativeness generally
Read, then other change can be made to these embodiments with modification.If these changes belong to the claims in the present invention with modification
Extremely equivalent technologies scope, then the present invention be also intended to comprising these changes and modification.
Claims (11)
1. a kind of display device, including display module and pressure-sensing module, it is characterised in that：The pressure-sensing module includes
Reference electrode, the first insulating barrier, the first sensing electrode, the second insulating barrier and the second sensing electrode being cascading；It is described
Display module includes electric conductor, and the reference electrode is any electric conductor in the display module；First insulating barrier and
Second insulating barrier is respectively provided with elasticity；First insulating barrier includes spaced multiple projections, second insulating barrier
Gap is provided with correspondence each projection；The reference electrode, first insulating barrier and first sensing electrode coordinate
Constitute the first electric capacity；First sensing electrode, second insulating barrier and second sensing electrode are constituted and coordinate the second electricity
Hold；The display device carries out pressure-sensing according to the capacitance variation of the first electric capacity and the second electric capacity.
2. display device as claimed in claim 1, it is characterised in that：Being sized to of the gap accommodates the projection, institute
Stating can stretch into corresponding gap when projection is under pressure.
3. display device as claimed in claim 1, it is characterised in that：The display module is liquid crystal display module, the liquid
Brilliant display module includes the liquid crystal panel and backlight module that are stacked, first insulating barrier be located at the backlight module away from
The side of the liquid crystal panel.
4. display device as claimed in claim 1, it is characterised in that：The display module is liquid crystal display module, the liquid
Brilliant display module includes the liquid crystal panel and backlight module that are stacked, and first insulating barrier is located at the liquid crystal panel and institute
State between backlight module.
5. display device as claimed in claim 3, it is characterised in that：Second sensing electrode is leaned on located at the backlight module
The surface of the nearly liquid crystal panel, the reference electrode is any electric conductor on the liquid crystal panel.
6. the display device as described in claim 3 or 4, the liquid crystal panel is provided with public electrode and pixel electrode, described
Reference electrode is the public electrode or pixel electrode.
7. display device as claimed in claim 1, it is characterised in that：The display module is OLED display modules, the ginseng
It is any electric conductor in the OLED display modules to examine electrode.
8. display device as claimed in claim 1, it is characterised in that：First insulating barrier also includes a body, described convex
Block is arranged at the body near the surface of first sensing electrode.
9. the display device as described in claim 1 or 8, it is characterised in that：The projection is hemispherical or cylindricality.
10. the display device as described in claim 1 or 8, it is characterised in that：First insulating barrier and second insulating barrier
Material be elastomer.
11. display devices as claimed in claim 1, it is characterised in that：The display device also includes a touch module, described
Touch module is integrated in the display module, or is arranged between the display module and the cover plate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710032464.4A CN106873826A (en) | 2017-01-16 | 2017-01-16 | Display device with pressure-sensing function |
| TW106104552A TWI631502B (en) | 2017-01-16 | 2017-02-13 | Display device with force sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710032464.4A CN106873826A (en) | 2017-01-16 | 2017-01-16 | Display device with pressure-sensing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106873826A true CN106873826A (en) | 2017-06-20 |
Family
ID=59158559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710032464.4A Pending CN106873826A (en) | 2017-01-16 | 2017-01-16 | Display device with pressure-sensing function |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106873826A (en) |
| TW (1) | TWI631502B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113805717A (en) | 2020-06-16 | 2021-12-17 | 宸鸿科技(厦门)有限公司 | Force-sensitive sensing module, manufacturing method thereof and electronic device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101046720A (en) * | 2006-03-30 | 2007-10-03 | 苹果电脑有限公司 | Force imaging input device and system |
| CN102339179A (en) * | 2010-07-16 | 2012-02-01 | 义隆电子股份有限公司 | Three-dimensional touch sensor and application method thereof |
| CN104969159A (en) * | 2013-02-12 | 2015-10-07 | 索尼公司 | Sensor device, input device, and electronic apparatus |
| CN104992627A (en) * | 2015-07-29 | 2015-10-21 | 敦泰电子有限公司 | Display module with pressure sensor |
| CN105446538A (en) * | 2015-10-29 | 2016-03-30 | 深圳市汇顶科技股份有限公司 | Pressure detection structure and touch device |
| US20160378255A1 (en) * | 2013-11-26 | 2016-12-29 | Apple Inc. | Self-Calibration of Force Sensors and Inertial Compensation |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101722229B1 (en) * | 2010-12-15 | 2017-04-03 | 삼성디스플레이 주식회사 | Flat panel display device with touch screen |
| TWM482114U (en) * | 2014-01-14 | 2014-07-11 | Superc Touch Corp | High accuracy of the narrow border embedded flat display touch structure |
| TW201541322A (en) * | 2014-04-30 | 2015-11-01 | Wintek Corp | Capacitive touch device |
| CN104503609A (en) * | 2014-12-04 | 2015-04-08 | 深圳市华星光电技术有限公司 | OLED (Organic Light Emitting Diode) touch display device and manufacturing method thereof |
-
2017
- 2017-01-16 CN CN201710032464.4A patent/CN106873826A/en active Pending
- 2017-02-13 TW TW106104552A patent/TWI631502B/en active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101046720A (en) * | 2006-03-30 | 2007-10-03 | 苹果电脑有限公司 | Force imaging input device and system |
| CN102339179A (en) * | 2010-07-16 | 2012-02-01 | 义隆电子股份有限公司 | Three-dimensional touch sensor and application method thereof |
| CN104969159A (en) * | 2013-02-12 | 2015-10-07 | 索尼公司 | Sensor device, input device, and electronic apparatus |
| US20160378255A1 (en) * | 2013-11-26 | 2016-12-29 | Apple Inc. | Self-Calibration of Force Sensors and Inertial Compensation |
| CN104992627A (en) * | 2015-07-29 | 2015-10-21 | 敦泰电子有限公司 | Display module with pressure sensor |
| CN105446538A (en) * | 2015-10-29 | 2016-03-30 | 深圳市汇顶科技股份有限公司 | Pressure detection structure and touch device |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201828014A (en) | 2018-08-01 |
| TWI631502B (en) | 2018-08-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9921700B2 (en) | Display module with pressure sensor | |
| CN1214314C (en) | Touch panel of good operation property under low temperature environment | |
| US9720533B2 (en) | Touch type input terminal | |
| US9830033B2 (en) | Touch sensor and method of manufacturing the same | |
| US20130027339A1 (en) | Transparent piezoelectric sheet-with-a-frame, touch panel, and electronic device each having the transparent piezoelectric sheet | |
| US10592055B2 (en) | Touch sensing apparatus, touch panel, and display apparatus including the same | |
| US20100164900A1 (en) | Capacitive touch sensing assembly | |
| TWI667595B (en) | Input device, sensor, keyboard and electronic device | |
| US20170024047A1 (en) | Display module with pressure sensor | |
| US9483150B2 (en) | Touch sensor mechanism and manufacturing method thereof | |
| US20110064943A1 (en) | Conductive slice structure | |
| US10025131B2 (en) | Touch-sensing liquid crystal panel and fabrication method thereof | |
| WO2017166385A1 (en) | Display panel, display device, and preparation method for display panel | |
| KR101555080B1 (en) | Touch sensor intergrated with a polarizer and display device comprising the same | |
| TWI588729B (en) | Capacitive pressure sensitive display device | |
| US9362060B2 (en) | Touch electrode device | |
| CN106873826A (en) | Display device with pressure-sensing function | |
| US10795190B2 (en) | Input sensing unit and display device including the input sensing unit | |
| US10627965B2 (en) | Touch sensor and display device including the same | |
| CN103543889A (en) | Method for manufacturing monolayer capacitive touch screen | |
| CN111258448A (en) | Touch panel | |
| CN106020543A (en) | Display device and manufacturing method | |
| EP3270269B1 (en) | Pressure sensor and display device including the same | |
| CN102967972B (en) | Capacitive touch array substrate and manufacturing method thereof and liquid crystal panel | |
| CN105142092A (en) | Substrate and manufacturing method thereof and display device |
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 | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180816 Address after: 610041 689 cooperation Road, hi-tech West District, Chengdu, Sichuan Applicant after: Cheng Cheng Technology (Chengdu) Co., Ltd. Applicant after: Interface Optoelectronic (Shenzhen) Co., Ltd. Address before: 518057 Room 201, building A, 1 Bay Road, Shenzhen Hong Kong cooperation zone, Qianhai, Shenzhen, Guangdong, Nanshan District Applicant before: MIICS BUSINESS CONSULTING (SHENZHEN) CO., LTD. |
|
| TA01 | Transfer of patent application right | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170620 |
|
| RJ01 | Rejection of invention patent application after publication |