CN205015877U - Touch display device - Google Patents
Touch display device Download PDFInfo
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- CN205015877U CN205015877U CN201520771788.6U CN201520771788U CN205015877U CN 205015877 U CN205015877 U CN 205015877U CN 201520771788 U CN201520771788 U CN 201520771788U CN 205015877 U CN205015877 U CN 205015877U
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- touch
- display unit
- pressure sensitive
- touch display
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Abstract
The utility model relates to a touch display device, including protection apron, touch -sensitive unit and display element, the touch -sensitive unit is used for the response to exert the touch signal on the protection apron, still be provided with the forced induction unit in the display element, the forced induction unit includes the substrate, forms the spaced electrode a plurality of of each other on the substrate to and the quick resistance layer of power of the adjacent electrode of connection, the quick resistance layer of doing all can includes insulating body and the conductive particle of dispersion in insulating body. The utility model discloses with forced induction unit integrated to the display element in, this forced induction unit can detect multi -touch's pressure signal through setting up the quick resistance layer of power simultaneously.
Description
Technical field
The utility model relates to touch-control display field, particularly relates to a kind of touch display unit with pressure sensitive function.
Background technology
Touch-screen, because having the advantage such as ease for operation, dirigibility, has become primary human's interactive means of personal mobile communication equipment and integrate information terminal (as mobile phone, panel computer and super notebook computer etc.).Relative to the touch-screen of resistive touch screen and alternate manner, the advantages such as capacitive touch screen is low with cost, structure is simple and durable, are widely used by intelligent terminal gradually.But existing capacitance touch screen is the touch location of perception screen body place plane and operation only, be difficult to the pressure that perception puts on screen surface and change the touch parameter brought.
In order to sense the pressure change of screen surface, dealer is integrated pressure sensor in touch-screen.But existing way mostly can only detect the touch pressure information of single-point.
Utility model content
Based on this, the utility model aims to provide a kind of touch display unit that can detect multiple point touching pressure signal.
A kind of touch display unit; comprise cover sheet, touch sensing unit and display unit; described touch sensing unit is for responding to the touch signal put on cover sheet; pressure sensitive unit is also provided with in described display unit; described pressure sensitive unit comprises base material, be formed on base material multiple apart from one another by electrode; and connecting the force sensing resistance layer of adjacent electrode, described force sensing resistance layer comprises insulating body and is dispersed in the conductive particle in insulating body.
Wherein in an embodiment, the base material in described pressure sensitive unit is one, described distribution of electrodes at base material one on the surface.
Wherein in an embodiment, the base material in described pressure sensitive unit is two, and described distribution of electrodes is on two adjacent surfaces of two base materials.
Wherein in an embodiment, described force sensing resistance layer covers on the whole surface of base material.
Wherein in an embodiment, described force sensing resistance layer covers the electrode crossing position on two base materials.
Wherein in an embodiment; described display unit comprises liquid crystal functional layer and backlight module; described backlight module comprises stacked blooming piece and the protection sheet metal for the protection of blooming piece, and described pressure sensitive unit is between blooming piece and protection sheet metal.
Wherein in an embodiment, between described pressure sensitive unit and blooming piece, be provided with resiliency compressible layer.
Wherein in an embodiment, described pressure sensitive unit is bonded on protection sheet metal, and between resiliency compressible layer and protection sheet metal.
Wherein in an embodiment, described touch sensing unit is integrated in display unit.
Pressure sensitive unit is integrated in display unit by above-mentioned touch display unit, and this pressure sensitive unit is by arranging force sensing resistance layer simultaneously, can detect the pressure signal of multiple point touching.
Accompanying drawing explanation
The structural representation of the touch display unit that Fig. 1 provides for the utility model one embodiment.
Fig. 2 is the structural representation of the pressure sensitive unit in touch display unit shown in Fig. 1.
Fig. 3 and Fig. 4 is the different layers structural representation in the unit of pressure sensitive shown in Fig. 2.
The structural representation of the pressure sensitive unit in the touch display unit that Fig. 5 provides for another embodiment of the utility model.
Fig. 6 is the schematic cross-section of the unit of pressure sensitive shown in Fig. 5.
The part-structure schematic diagram of the pressure sensitive unit in the touch display unit that Fig. 7 provides for the another embodiment of the utility model.
Fig. 8 is the schematic cross-section of the unit of pressure sensitive shown in Fig. 7.
Embodiment
The touch display unit that the utility model provides can as the display terminal with touch interactive form of the type such as mobile phone, panel computer.
As shown in Figure 1, described touch display unit comprises cover sheet 10, touch sensing unit 20, display unit and pressure sensitive unit 70.
Touch sensing unit 20 comprises touch drive electrode and touch sensible electrode.Touching drive electrode and touch sensible electrode can be distributed on same base material, such as, GF structure alleged by industry, GF2 structure etc., or is distributed in two different base materials respectively, such as, GFF structure alleged by industry.In some embodiments in addition, touch drive electrode and touch sensible electrode also can be formed in the lower surface of cover sheet 10 and make cover sheet 10 have the function of capacitive transducer concurrently, and this kind of structure is called OGS structure by industry.The utility model alleged " on ", D score is for the degree close with user in application process relative to touch display unit, relatively near the side of user be " on ", the side relatively away from user is D score.The lower surface of such as cover sheet refers to the side of cover sheet away from user.In some embodiments in addition, a kind of surface that also can be formed in the substrate fitting in cover sheet 10 in these two kinds of touch control electrode, such as, G1F structure alleged by industry.
Described display unit comprises liquid crystal functional layer 50 and backlight module 60; described liquid crystal functional layer 50 comprises the upper polaroid 51, optical filter 52, liquid crystal layer 53, substrate 54 and the lower polaroid 55 that set gradually, and described backlight module 60 comprises blooming piece and the protection sheet metal 64 for the protection of blooming piece.Blooming piece can comprise the structures such as diffusion sheet 61, light guide plate 62 and the reflector plate 63 set gradually.
In some embodiments in addition, touch drive electrode in touch sensing unit 20 and touch sensible electrode also can be integrated and be arranged in liquid crystal layer 53 (structure of above-mentioned touch sensing unit is called in-cell structure by industry), or described touch drive electrode and touch sensible electrode are arranged on (structure of above-mentioned touch sensing unit is called on-cell structure by industry) between polaroid 51 and optical filter 52.
Described touch drive electrode and touch sensible electrode are for responding to the touch signal put on cover sheet 10.Described touch signal comprises contact on the two-dimensional directional being parallel to cover sheet 10, slide, to pull etc. and touch input signal, even comprises the touch input signal perpendicular to the side (such as bending arc-shaped side edges of shielding) every empty input signal (i.e. suspension touch control signal) or cover sheet 10 edge on cover sheet 10 direction.
Described pressure sensitive unit 70 is arranged in display unit, for responding to the pressure signal put on cover sheet 10.Particularly, pressure sensitive unit is between blooming piece and protection sheet metal 64.
In certain embodiments, resiliency compressible layer (not shown) is provided with between described pressure sensitive unit 70 and blooming piece (being specially reflector plate 63).Described resiliency compressible layer can be made up of bubble silk floss, sponge, Bio-sil and other porosint.Described pressure sensitive unit 70 is bonded on protection sheet metal 64 by glue or solid gum, and between resiliency compressible layer and protection sheet metal 64.
Described pressure sensitive unit comprises base material, be formed on base material multiple apart from one another by electrode, and connect the force sensing resistance layer of adjacent electrode, described force sensing resistance layer comprises insulating body and is dispersed in the conductive particle in insulating body.
Force sensing resistance layer is made up of quantum tunneling compound substance, can for mixing the pressure sensitive composite material of conductive particle.Fine conductive even particulate dispersion in force sensing resistance layer is in insulating body.Insulating body can be made for materials such as dacron, epoxy resin, polyester, organosilicon, rubber.Conductive particle can be metallic particles, and as nickel, silver, copper powder or metal alloy particle, can be also carbon black, graphite, can also be carbon nano-tube, also can be that conductive oxide is as tin indium oxide, indium oxide, tin oxide, zinc paste, titanium dioxide etc.Conductive particle is of a size of 10nm-100 μm.Described force sensing resistance layer can pass through the modes such as silk-screen, inkjet printing, gold-tinted processing procedure one-tenth, coating by quick for power printing ink to manufacture on described base material.Wherein the quick ink of power is formed by modulation such as foregoing insulating body, conductive particle, solvent, hardening agent, and realizes solidification by the mode be heating and curing or UV irradiates.Solvent can for common are one or more the combination in machine solvent such as 2-butanone, glycol ether and tetrahydrofuran.Also hardening agent such as aliphatics amine, the amide group amine etc. of suitable type can be selected according to the type of insulating body.
As shown in Figure 2, Figure 3 and Figure 4, the base material in described pressure sensitive unit is two, and described distribution of electrodes is on two adjacent surfaces of two base materials.Particularly, base material 71 forms electrode 710.Because pressure sensitive unit is arranged between the protection sheet metal 64 of display unit and reflector plate 63, without the need to printing opacity design, therefore base material 71 can be made up of transparent or nontransparent material.Electrode 710 can adopt the modes such as deposition/etching to be produced on base material 71.Electrode 720 on base material 72 has similar characteristics, and electrode 710 has different bearing of trend from electrode 720, and when two base materials 71,72 dock, electrode 710,720 has crossover location.Force sensing resistance layer 73 is arranged on these crossover location places.The form that two base materials 71,72 can adopt frame to paste combines.
Be appreciated that in above-described embodiment, force sensing resistance layer 73 can be also one deck, and covers on the whole surface of base material 71 or base material 72.
Being appreciated that the shape of electrode 710,720 is not limited to the strip shaped electric poles shown in Fig. 3 and Fig. 4, can also be the shapes such as separate block type electrode.
The pressure detection principle of above-mentioned pressure sensitive unit is, when force sensing resistance layer 73 is not stressed, the conductive particle in force sensing resistance layer 73 is distant, and force sensing resistance layer 73 is in insulation or high resistance state; When force sensing resistance layer 73 is stressed, by compression, the distance between conductive particle wherein shortens insulating body, and due to quantum tunneling effect, the electron transfer capabilities between conductive particle strengthens, thus is macroscopically being presented as that the resistance value of force sensing resistance layer 73 reduces.Along with the increase that force sensing resistance layer 73 is stressed, the resistance value between coupled electrode reduces gradually.Therefore, the mutual relationship database by force information of electrode resistance change information in touch display unit in aforesaid pressure sensitive unit and touch display unit can be set up.In actual applications, storer and processor is also comprised in described touch display unit, under the diverse location stored in storer in touch display unit carries out different force value touches, the resistance variations information of each adjacent electrode of detect force in touch display unit, processor detects for contrasting touch display unit the resistance variations information of adjacent electrode and the resistance variations information of institute's pre-stored that obtain, thus judges the touch information of touch display unit.Wherein touch information comprises the size of the power of touch, also can comprise the position of touch force.
In one embodiment, time in running order while of described touch sensing unit and pressure sensitive unit, if touch sensing unit and pressure sensitive unit inspection are to touch operation event, described touch display unit utilizes described touch sensing unit identification touch operation position, and described touch display unit utilizes described pressure sensitive unit identification touch operation pressure; If described touch sensing unit touch operation event do not detected and described pressure sensitive unit inspection to touch operation event time, described touch display unit utilizes described pressure sensitive unit identification touch operation position and touch operation pressure.
As shown in Figure 5 and Figure 6, in a further embodiment, the base material 71 in described pressure sensitive unit 70 is one, and described electrode 710 is distributed in one of base material 71 on the surface.Force sensing resistance layer 73 connects adjacent electrode 710.
As shown in Figure 7 and Figure 8, force sensing resistance layer 73 can be whole layer structure, covers on base material 71 to connect all electrodes 710.
Pressure sensitive unit is integrated in display unit by the utility model, and this pressure sensitive unit is by arranging force sensing resistance layer simultaneously, can detect the pressure signal of multiple point touching, and has the high advantage of accuracy of detection.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this instructions is recorded.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (9)
1. a touch display unit; comprise cover sheet, touch sensing unit and display unit; described touch sensing unit is for responding to the touch signal put on cover sheet; it is characterized in that; pressure sensitive unit is also provided with in described display unit; described pressure sensitive unit comprises base material, be formed on base material multiple apart from one another by electrode, and connect the force sensing resistance layer of adjacent electrode, described force sensing resistance layer comprises insulating body and is dispersed in the conductive particle in insulating body.
2. touch display unit according to claim 1, is characterized in that, the base material in described pressure sensitive unit is one, described distribution of electrodes at base material one on the surface.
3. touch display unit according to claim 1, is characterized in that, the base material in described pressure sensitive unit is two, and described distribution of electrodes is on two adjacent surfaces of two base materials.
4. the touch display unit according to Claims 2 or 3, is characterized in that, described force sensing resistance layer covers on the whole surface of base material.
5. touch display unit according to claim 3, is characterized in that, described force sensing resistance layer covers the electrode crossing position on two base materials.
6. touch display unit according to claim 1; it is characterized in that; described display unit comprises liquid crystal functional layer and backlight module; described backlight module comprises stacked blooming piece and the protection sheet metal for the protection of blooming piece, and described pressure sensitive unit is between blooming piece and protection sheet metal.
7. touch display unit according to claim 6, is characterized in that, is provided with resiliency compressible layer between described pressure sensitive unit and blooming piece.
8. touch display unit according to claim 7, is characterized in that, described pressure sensitive unit is bonded on protection sheet metal, and between resiliency compressible layer and protection sheet metal.
9. touch display unit according to claim 1, is characterized in that, described touch sensing unit is integrated in display unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520771788.6U CN205015877U (en) | 2015-09-30 | 2015-09-30 | Touch display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520771788.6U CN205015877U (en) | 2015-09-30 | 2015-09-30 | Touch display device |
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| CN205015877U true CN205015877U (en) | 2016-02-03 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI566150B (en) * | 2016-02-05 | 2017-01-11 | 速博思股份有限公司 | High-precision force-touch sensor with multilayered electrodes |
| CN106354334A (en) * | 2016-10-08 | 2017-01-25 | 南昌欧菲光科技有限公司 | Touch display device |
| CN106557212A (en) * | 2015-09-30 | 2017-04-05 | 南昌欧菲光科技有限公司 | Touch display unit |
| CN107562245A (en) * | 2016-07-01 | 2018-01-09 | 南昌欧菲光科技有限公司 | Touch display unit and electronic equipment |
| CN107562237A (en) * | 2016-07-01 | 2018-01-09 | 南昌欧菲生物识别技术有限公司 | Pressure sensitive touch screen |
| CN107562248A (en) * | 2016-07-01 | 2018-01-09 | 南昌欧菲生物识别技术有限公司 | Pressure sensitive touch screen and electronic equipment |
| CN107562242A (en) * | 2016-07-01 | 2018-01-09 | 南昌欧菲光科技有限公司 | Pressure sensitive device and there is its display device |
| CN107621911A (en) * | 2016-07-16 | 2018-01-23 | 南昌欧菲光科技有限公司 | Touch display unit |
-
2015
- 2015-09-30 CN CN201520771788.6U patent/CN205015877U/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106557212A (en) * | 2015-09-30 | 2017-04-05 | 南昌欧菲光科技有限公司 | Touch display unit |
| TWI566150B (en) * | 2016-02-05 | 2017-01-11 | 速博思股份有限公司 | High-precision force-touch sensor with multilayered electrodes |
| US20170228065A1 (en) * | 2016-02-05 | 2017-08-10 | Superc-Touch Corporation | Force-touch sensor with multilayered electrodes |
| CN107063518A (en) * | 2016-02-05 | 2017-08-18 | 速博思股份有限公司 | High-precision touch pressure sensing device with multilayer electrode structure |
| US10156949B2 (en) * | 2016-02-05 | 2018-12-18 | Superc-Touch Corporation | Force-touch sensor with multilayered electrodes |
| CN107063518B (en) * | 2016-02-05 | 2019-11-08 | 速博思股份有限公司 | High-precision touch pressure sensing device with multilayer electrode structure |
| CN107562245A (en) * | 2016-07-01 | 2018-01-09 | 南昌欧菲光科技有限公司 | Touch display unit and electronic equipment |
| CN107562237A (en) * | 2016-07-01 | 2018-01-09 | 南昌欧菲生物识别技术有限公司 | Pressure sensitive touch screen |
| CN107562248A (en) * | 2016-07-01 | 2018-01-09 | 南昌欧菲生物识别技术有限公司 | Pressure sensitive touch screen and electronic equipment |
| CN107562242A (en) * | 2016-07-01 | 2018-01-09 | 南昌欧菲光科技有限公司 | Pressure sensitive device and there is its display device |
| CN107621911A (en) * | 2016-07-16 | 2018-01-23 | 南昌欧菲光科技有限公司 | Touch display unit |
| CN106354334A (en) * | 2016-10-08 | 2017-01-25 | 南昌欧菲光科技有限公司 | Touch display device |
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Address after: 330000 Huang Jia Hu Road, Nanchang economic and Technological Development Zone, Nanchang, Jiangxi Patentee after: Nanchang OFilm Tech. Co.,Ltd. Patentee after: Ophiguang Group Co.,Ltd. Patentee after: SUZHOU OFILM TECH Co.,Ltd. Address before: 330000 Huang Jia Hu Road, Nanchang economic and Technological Development Zone, Nanchang, Jiangxi Patentee before: Nanchang OFilm Tech. Co.,Ltd. Patentee before: OFilm Tech Co.,Ltd. Patentee before: SUZHOU OFILM TECH Co.,Ltd. Address after: 330000 Huang Jia Hu Road, Nanchang economic and Technological Development Zone, Nanchang, Jiangxi Patentee after: Nanchang OFilm Tech. Co.,Ltd. Patentee after: OFilm Tech Co.,Ltd. Patentee after: SUZHOU OFILM TECH Co.,Ltd. Address before: 330000 Huang Jia Hu Road, Nanchang economic and Technological Development Zone, Nanchang, Jiangxi Patentee before: Nanchang OFilm Tech. Co.,Ltd. Patentee before: Shenzhen OFilm Tech Co.,Ltd. Patentee before: SUZHOU OFILM TECH Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210415 Address after: 231323 Building 1, precision electronics industrial park, Hangbu Town, Shucheng County, Lu'an City, Anhui Province Patentee after: Anhui jingzhuo optical display technology Co.,Ltd. Address before: 330000 Huang Jia Hu Road, Nanchang economic and Technological Development Zone, Nanchang, Jiangxi Patentee before: Nanchang OFilm Tech. Co.,Ltd. Patentee before: Ophiguang Group Co.,Ltd. Patentee before: SUZHOU OFILM TECH Co.,Ltd. |