CN209690890U - Input pickup and display device including the input pickup - Google Patents

Input pickup and display device including the input pickup Download PDF

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Publication number
CN209690890U
CN209690890U CN201920287240.2U CN201920287240U CN209690890U CN 209690890 U CN209690890 U CN 209690890U CN 201920287240 U CN201920287240 U CN 201920287240U CN 209690890 U CN209690890 U CN 209690890U
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China
Prior art keywords
layer
touch sensor
pressure sensor
touch
display device
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CN201920287240.2U
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Chinese (zh)
Inventor
崔秉搢
朴珉赫
朴盛焕
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Dongwoo Fine Chem Co Ltd
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Dongwoo Fine Chem Co Ltd
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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
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
    • G06F3/03545—Pens or stylus
    • 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
    • G06F3/0412—Digitisers structurally integrated in a display
    • 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
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04111—Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)

Abstract

It can be sensed the utility model relates to one kind and write the input pickup of pressure and including the display device of the input pickup.

Description

Input pickup and display device including the input pickup
Technical field
The utility model relates to input pickup and including the display device of the input pickup.Particularly, this is practical new Type is related to a kind of input pickup that can sense writing pressure and the display device including it.
Background technique
In existing display device, the touch inputting method that wherein user directly touches screen using finger is made extensively With.Touch inputting method can be combined with display screen, without individual input unit such as keyboard and mouse, and by permitting The specific position of the direct touch display screen in family allowable inputs, to provide intuitive and convenient user interface.
Currently, capacitive touch sensor is widely used, wherein transparent conductive material is used to form the touching of touch sensor Touch sensing electrode pattern.Due to usually, using touch sensor, considering the finger of people by touching screen with finger Size forms sensing electrode pattern.For example, Korean Patent Publication No 10-2016-0105947 discloses a kind of touch Shield sensor comprising the touch sensitive regions with 5mm × 5mm square area.
There is limitation in terms of specified accurate coordinates using the capacitive touch sensor that finger executes input.Therefore, make Accurate figure is advantageously used in the digital quantizer of electromagentic resonance (EMR) method using pen to input.
It discloses in International Patent Application Publication WO2010/023861A1 and is turned using the prior art digital of EMR method Parallel operation, wherein digital quantizer includes indicator and the position detecting device for sensing indicator.Position detecting device includes Driving loop wire group, sensing loop wire group are disposed with driving loop wire group thereon and sense detection surface, recognition unit and the inspection of loop wire group Survey unit.The linear loop wire of multiple U-shapeds in the linear loop wire of multiple U-shapeds in driver loop wire group and detection loop wire group is each other just It hands over.The variation of electromagnetic coupling degree based on driver loop wire group and detection loop wire group, detection unit detect indicator instruction Position.
This EMR type digital quantizer has the advantages that accurate coordinate is specified and hand-written Pressure identification, but structure is complicated And need specific indicator.
Meanwhile Korean Patent Publication No 10-2016-0056682 discloses a kind of touch pressure sensing device, packet It includes: felt pen, including the pen tip with conductive fluid；Touch sensor, including multiple driving electrodes and multiple sensing electrodes；With Controller, for determining touch pressure according to the contact area between pen tip and touch sensor.
The touch pressure sensor device of Korean Patent Publication No 10-2016-0056682 can be in no pressure sensing Sensing writes pressure in the case where device, but still having using specific indicating equipment includes the pen tip with conductive fluid The inconvenience of felt pen.
Utility model content
[technical problem]
The purpose of the utility model is to provide one kind to write pressure by sensing in the case where not using particular indicators Input pickup and display device including it.
Another purpose of the utility model is to provide a kind of input pickup that can sense write-in pressure, which passes Sensor structure it is simple and can low cost manufacturing, and provide a kind of display device including the input pickup.
[technical solution]
One aspect according to the present utility model provides a kind of input pickup comprising: touch sensor, including tool There is the touch sensor pattern of the pattern spacing of 1mm to 3mm；Pressure sensor is arranged in above or below touch sensor； And signal processing unit, it is connected to touch sensor and pressure sensor.
Signal processing unit can will touch input signal corresponding with pen input and pressure corresponding with pen input Signal exports together.
Touch sensor can include: substrate；Separating layer on substrate；The protective layer being formed in separating layer；It is formed in guarantor Anticreep gas-bearing formation on sheath；It is formed in the touch sensor pattern layer on anticreep gas-bearing formation and containing transparent conductive material；It is formed in Insulating layer in touch sensor pattern layer；And it is formed on the insulating layer and the bridge layer containing metal material.
Touch sensor can include: substrate；Separating layer on substrate；The protective layer being formed in separating layer；It is formed in guarantor Anticreep gas-bearing formation on sheath；It is formed on anticreep gas-bearing formation and the bridge layer containing metal material；The insulation being formed on bridge layer Layer；And form on the insulating layer and include the touch sensor pattern layer of transparent conductive material.
The substrate of touch sensor can be flexible base board.
Pressure sensor can be capacitance type pressure sensor.
Pressure sensor can be resistor-type pressure sensor.
Another aspect according to the present utility model provides a kind of display device comprising: display layer；It is arranged in display layer The touch sensor of top；Pressure sensor above or below display layer is set；Be connected to touch sensor and pressure The signal processing unit of sensor, wherein touch sensor has the pattern spacing of 1mm to 3mm.
Display device may also include the covering window being arranged in above display layer, touch sensor and pressure sensor.
Covering window can be made of glass.
Covering window can be made of flexible film substrate.
Signal processing unit can will touch input signal corresponding with pen input and pressure corresponding with pen input Signal exports together.
Display layer can be oled layer or LCD layer.
[beneficial effect]
Input pickup according to the present utility model can be according to the writing pressure of input sensing pen without the use of specific Instruction device has simple structure, and being capable of low cost manufacturing.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the display device of first embodiment according to the present utility model.
Fig. 2 is the chart for indicating to be changed according to the linearity of the spacing of touch sensor.
Fig. 3 is the cross-sectional view of the touch sensor of embodiment according to the present utility model.
Fig. 4 is the cross-sectional view of the display device of second embodiment according to the present utility model.
Fig. 5 is the cross-sectional view of the display device of third embodiment according to the present utility model.
Fig. 6 is the flow chart of the input sensing method of embodiment according to the present utility model.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.However, with the disclosure Attached drawing is only for the example of description the utility model, and the utility model is not limited to attached drawing.In addition, for clearer table It reaches, some elements may be exaggerated in figure, reduce or omit.
The utility model provides a kind of touch sensor being able to use with fine pattern and pressure sensor to sense The input pickup of pressure and the display device including the input pickup are write,
Fig. 1 is the cross-sectional view of the display device of first embodiment according to the present utility model.
With reference to Fig. 1, the display device 10 of first embodiment according to the present utility model includes display layer 110, display layer The touch sensor 130 on pressure sensor 120, pressure sensor 120 on 110 is connected to pressure sensor 120 and touches The signal processing unit 140 and the covering window 150 on touch sensor 130 of sensor 130.
As display layer 110, it is able to use any kind of display layer suitable for flexible display apparatus without limiting, And it is, for example, possible to use oled layer or LCD layers.
As pressure sensor 120, be able to use any kind of pressure sensor suitable for flexible display apparatus and There is no limit.
Pressure sensor 120 can be capacitive or resistor-type pressure sensor.
Capacitance type pressure sensor senses capacitance variations corresponding with the displacement of pressure sensor by signal processing unit.
Resistor-type pressure sensor senses resistance variations corresponding with the pressure of pressure sensor by signal processing unit.
Capacitance type pressure sensor, which has, is formed in film substrate such as PI, PET, COP, TAC, PES, PC and acrylic acid It is the sensing electrode on film, and can have buffer layer so that pressure sensor moves above or below sensing electrode Position.
Resistor-type pressure sensor may include its resistance with ilm substrate such as PI, PET, COP, TAC, PES, PC and propylene The material of pressure change on sour mesentery.
In addition, resistor-type pressure sensor can use such method, wherein an electricity being formed in ilm substrate Pole and another electrode being formed in lower ilm substrate are in contact with each other to generate resistance.
Touch sensor 130 is capacitive touch sensor, can have the touch input that can be sensed using pen 160 With the fine pattern for the touch input for using finger.Touch sensor 130 can have the pattern that spacing is 1mm to 3mm.
Fig. 2 is the chart for indicating to be changed according to the linearity of the spacing of touch sensor.
The touch sensor of the utility model is also configured as being used as digital quantizer.For this purpose, it may be desirable to increase Bonus point resolution, that is to say, that increase port number by reducing pattern spacing.However, the pen being used together with digital quantizer Usually with the diameter of 1 Φ, i.e. the diameter of conducting rod is 1mm or smaller.In such a case it is necessary to which the linearity is maintained at In the tolerance of 0.5mm.
As shown in Figure 2, when using 1 Φ, the linearity is measured while changing pattern spacing, and obtain in table 1 Shown in result.
[table 1]
Pattern spacing (mm) The linearity (mm)
0.6 0.75
0.8 0.51
1.0 0.20
1.2 0.22
1.4 0.25
1.6 0.26
1.8 0.28
2.0 0.29
2.2 0.30
2.4 0.31
2.6 0.32
2.8 0.35
3.0 0.38
3.2 0.72
3.4 0.80
3.6 0.95
From table 1 it follows that the pattern spacing that the tolerance of the linearity is maintained in 0.5mm is when using 1 Φ 1mm to 3mm.
Fig. 3 is the cross-sectional view of the touch sensor 130 of embodiment according to the present utility model.
With reference to Fig. 3, according to the touch sensor 130 of the utility model embodiment includes substrate 11, is formed in substrate 11 On separating layer 12, the protective layer 13 being formed in separating layer 12 and the anticreep gas-bearing formation 14 being formed on protective layer 13 and The touch sensor pattern layer 15 being formed on anticreep gas-bearing formation 14.
In an embodiment of the utility model, substrate 11 can be flexible film substrate, especially hyaline membrane or inclined Vibration plate.
If hyaline membrane has good transparency, mechanical strength and thermal stability, unrestricted.The tool of hyaline membrane Body example may include thermoplastic resin, such as polyester resin, such as polyethylene terephthalate, poly- M-phthalic acid second two Alcohol ester, polyethylene naphthalate and polybutylene terephthalate (PBT)；Celluosic resin, such as diacetyl cellulose and three Acetylcellulose；Polycarbonate resin；Acrylate, such as poly- (methyl) methyl acrylate and poly- (methyl) acrylic acid second Ester；Styrene resin, such as polystyrene and acrylonitritrile-styrene resin；Polyolefin resin such as polyethylene, polypropylene, tool There are cyclic annular or norbornene structure polyolefin and ethylene-propylene copolymer；Vinyl chloride resin；Amide resin, such as nylon and virtue Fragrant polyamide；Imide resin；Polyethersulfone resin；Sulphone resin；Polyether-ether-ketone resin；Polyphenylene sulfide；Vinyl alcohol resin； Vinylidene resin；Vinyl butyral resin；Allylation resin；Acetal resin；And epoxy resin.Moreover, can With the film for using the mixture by thermoplastic resin to form.Further, it is possible to use Thermocurable or UV curable resin, such as (methyl) acrylate, carbamate, propenoic methyl carbamate, epoxy resin and silicone resin.
This hyaline membrane can have suitable thickness.For example, it is contemplated that the machinability or thin layer of intensity and processing aspect Property, the thickness of hyaline membrane can be 1 μm to 500 μm, preferably 1 μm to 300 μm, more preferable 5 μm to 200 μm.
Hyaline membrane can contain at least one suitable additive.The example of additive may include UV absorbent, antioxidant, Lubricant, plasticizer, release agent, anti-coloring agent, fire retardant, antistatic agent, pigment and colorant.Hyaline membrane may include various Functional layer, including hard conating, anti-reflecting layer and gas-barrier layer, but the utility model is without being limited thereto.That is, depending on Desired purposes can also include other functional layers.
If desired, can be surface-treated to hyaline membrane.For example, surface treatment can by such as plasma, The drying means of corona and prime treatment, or carried out by the chemical method of the alkali process such as including saponification.
Moreover, hyaline membrane can be isotropic membrane, phase shift films or protective film.
In the case where isotropic membrane, delay (Ro) in 40nm or smaller, preferably 15nm or smaller face is preferably satisfied With the thickness retardation (Rth) of -90nm to+75nm, preferably -80nm to+60nm, particularly -70nm to+45nm, delay in face (Ro) it is expressed from the next with thickness retardation (Rth).
Ro=[(nx-ny) × d]
Rth=[(nx+ny)/2-nz] × d
Wherein, nx and ny is individually the principal refractive index in membrane plane, and nz is the refractive index in film thickness direction, and d is film Thickness.
Phase shift films can by being stretched uniaxially or biaxially of polymer film, the coating preparation of polymer-coated or liquid crystal, And commonly used in improving or control optical property, such as viewing angle compensation, improves colour sensitivity, prevents light leakage or display Color control.
Phase shift films may include half-wave (1/2) plate or quarter-wave (1/4) plate, positive c plate, negative C plate, positive a plate, negative A plate and Biaxial plates.
Protective film can be fluoropolymer resin film at least one surface thereof comprising contact adhesive (PSA) layer, or Such as polyacrylic self-adhesive film of person.
Polarizing film, which can be, becomes known for any of display panel.
Specifically, PVA (polyvinyl alcohol), TAC (triacetyl cellulose) or COP (cyclic olefin polymer) base are able to use Film, but the utility model is without being limited thereto.
Separating layer 12 is used for after the preparation of completion touch sensor from carrier in the manufacturing process of the utility model Strippable substrate and the layer formed.Therefore, separating layer 12 can be separated by physical force with carrier substrate, and layer after releasing It is stacked in ilm substrate 11.
Protective layer 13 is for protecting separating layer 12 and being formed in separating layer 12.
In the embodiments of the present invention, separating layer 12 or protective layer 13 or separating layer 12 and 13 liang of protective layer Person can be made of organic layer, to provide flexible touch sensor.
Organic layer can be made of polymer.Polymer may include selected from polyacrylate, polymethacrylates (such as PMMA), polyimides, polyamide, polyvinyl alcohol, polyamic acid, polyolefin (such as PE, PP), polystyrene, poly- norborneol Alkene, phenyl maleimide copolymers, poly- azobenzene, polyterephthalamide, polyester (such as PET, PBT), polyarylate, cortex cinnamomi In acid ester polymer, cumarin polymer, benzo [C] pyrroles ketone polymer, chalcone polymer and Aromatic acetylene polymer It is at least one.
It include that organic material in separating layer 12 or protective layer 13 or separating layer 12 and 13 the two of protective layer may be Cause to deaerate in process for making.By organic material generate gas cause it is uneven in film-forming process thereon, and It is also possible to damage layer thereon, causes to be difficult to form fine pattern.
In order to solve the problems, it in the embodiments of the present invention, is formed on protective layer 13 by inoranic membrane Or the anticreep gas-bearing formation 14 that organic film is constituted.
Anticreep gas-bearing formation 14 can be formed by inorganic laye, and can be single layer or comprising metal oxide or metal nitride Layer laminate.Specifically, it may include SiNx、SiON、Al2O3、SiO2And TiO2Any one of.For example, anticreep gas-bearing formation 14 It can be by SiON layers or SiO2Layer or SiON and SiO2Double-deck formed.
The thickness of anticreep gas-bearing formation 14 can be 100nm to 400nm.
When the thickness of anticreep gas-bearing formation is less than 100nm, deaerating, it is not sufficiently effective to prevent, and it is uneven that this causes film to be formed.When When thickness is greater than 400nm, crack may occur when separating touch sensor with carrier substrate after manufacture.
Specifically, when anticreep gas-bearing formation 14 is by SiON layers of single layer or SiO2When layer is formed, the thickness of single layer can be for 100nm extremely 400nm.When anticreep gas-bearing formation 14 is by SiON and SiO2When bilayer is formed, every layer of thickness can be 100nm to 200nm.
Anticreep gas-bearing formation 14 can be formed by organic layer.As the material of organic layer, can be used as known in the art exhausted Edge material is without limiting.Nonmetal oxide, the photosensitive resin comprising acrylic resin that such as silica can be used Composition or compositions of thermosetting resin.
Anticreep gas-bearing formation 14 can be formed by such as epoxy, polycyclic alkene system or acrylic material, and can have 10nm to 5 μm of thickness.
Alternatively, anticreep gas-bearing formation 14 can be gas barrier film.Barrier film, which can have, is alternately stacked organic layer and inorganic layer Structure.
The inorganic layer deposited as anticreep gas-bearing formation 14 can be formed or includes the inorganic layer in barrier film to prevent water point Infiltration.
When forming anticreep gas-bearing formation 14 on protective layer 13, it can stop from the protective layer 13 below anticreep gas-bearing formation 14 and divide The gas that absciss layer 12 generates in film forming and Patternized technique not influence layer thereon.Specifically, it when preventing degassing, is formed The transparent conductive material of the touch sensor pattern layer 15 formed on anticreep gas-bearing formation 14 can have uniform resistance.
In addition, anticreep gas-bearing formation 14 can be used as facilitating the functional layer for forming fine electrode pattern on anticreep gas-bearing formation 14. That is, making surface planarisation by forming anticreep gas-bearing formation 14, and improves in Patternized technique and form touch sensing The adhesiveness of the transparent conductive material of device pattern layer 15.Therefore, etch-rate can be accurately controlled, and can be led transparent The etching cross section of electric material is formed to have positive cone shape rather than reverse tapered shapes, so as to form fine pattern.
In addition, anticreep gas-bearing formation 14 can execute the function of etch stop layer in Patternized technique on it.For example, can Protection is located at anticreep gas while the other inorganic layers for such as insulating layer that dry etching can be formed on anticreep gas-bearing formation 14 The separating layer 12 and protective layer 13 of 14 lower section of layer are against damages.
In the embodiments of the present invention, touch sensor pattern layer 15 is formed on anticreep gas-bearing formation 14.
Here, each of touch-sensing electrode 151 and 152 can be the unit that can sense touch input.It is formed The width of one unit of the repeat patterns including the space between touch-sensing electrode 151 and 152 can be defined as touch The spacing of sensing electrode pattern.
Embodiment according to the present utility model, by forming touch sensor pattern layer 15 on anticreep gas-bearing formation 14, by In the function of above-mentioned anticreep gas-bearing formation 14, the fine touch sensor pattern with 3mm or smaller spacing can be obtained.Therefore, may be used With not only accurately detection uses the input of finger but also accurately detects using the pen with the touch area smaller than finger Input.
Touch sensor pattern layer 15 is transparency conducting layer, can be by aoxidizing selected from metal mesh, metal nanometer line, metal One of object, carbon nanotube, graphene, conducting polymer and electrically conductive ink or multiple material are formed.
Here, the metal for forming metal mesh can be in gold, silver, copper, molybdenum, aluminium, palladium, neodymium, platinum, zinc, tin, titanium or its alloy It is any.
The example of metal nanometer line may include silver nanowires, copper nano-wire, zirconium nano wire and nanowires of gold.
The example of metal oxide may include tin indium oxide (ITO), indium zinc oxide (IZO), indium oxide zinc-tin (IZTO), oxygen Change aluminium zinc (AZO), gallium oxide zinc (GZO), the tin oxide (FTO) and zinc oxide (ZnO) for adulterating fluorine.
Moreover, touch sensor pattern layer 15 can be formed by the carbon material of such as carbon nanotube (CNT) and graphene.
Conducting polymer may include polypyrrole, polythiophene, polyacetylene, PEDOT and polyaniline, and electrically conductive ink can be The mixture of metal powder and curable polymer adhesive.
If desired, touch sensor pattern layer 15 can be made of two or more conductive layers, to reduce resistance.
For example, touch sensor pattern layer 15 can be by ITO, AgNW (silver nanowires) or the single layer or two of metal mesh Layer or more is constituted to reduce resistance, and the two or more layers include the first electricity of the transparent metal oxide of such as ITO The second electrode lay of pole layer and the metal or AgNW that are formed in ITO electrode layer.
Insulating layer 16 is formed in touch sensor pattern layer 15, so that the first touch-sensing electrode 151 and second touches Sensing electrode 152 is electrically isolated from one.
It is belonging respectively to the multiple second touch-sensing electrodes 152 for constituting the unit of each sensing region and being separated from each other The hole in insulating layer 16 is connected to via bridge 17.
Insulating layer 16 can be formed in the whole surface of touch sensor pattern layer 15, or can be patterned to There is island on the coupling part that first touch-sensing electrode 151 is connected to each other.
In the embodiments of the present invention, insulating layer 16 can be formed by inorganic laye.
As described above, being able to use inorganic layer as insulating layer 16, because anticreep gas-bearing formation 14 can be in the dry of insulating layer 16 Protect separating layer 12 and protective layer 13 against damages during etch process.
On the other hand, organic layer can also act as insulating layer 16.
Bridge 17 is formed on insulating layer 16, so that the second touch-sensing electrode 152 is electrically connected to each other.
Bridge 17 can be made of any conductive material such as metal.Here, metal can be gold, silver, copper, molybdenum, aluminium, palladium, Any one of neodymium, platinum, zinc, tin, titanium or its alloy.
Passivation layer 18 is formed on bridge 17.
Passivation layer 18 can be formed by organic layer or inorganic layer.
As the material of passivation layer 18, insulating materials as known in the art can be used without limiting, can be used The nonmetal oxide of such as silica, photosensitive resin composition or compositions of thermosetting resin including acrylic resin.
Passivation layer 18 can be formed by such as epoxy based material, and can have 10nm to 5 μm of thickness.
Passivation layer 18 can be formed by such as polycyclic alkene based material, and can have 10nm to 5 μm of thickness.
Moreover, passivation layer 18 can be formed by such as acrylic acid series organic insulation membrane material, and it can have 10nm extremely 5 μm of thickness.
Meanwhile it being had such a structure that shown in Fig. 3 according to the touch sensor 130 of the utility model embodiment First touch-sensing electrode 151 and the second touch-sensing electrode 152 are formed on anticreep gas-bearing formation 14, and bridge 17 is formed in insulation On layer 16.However, the structure of touch sensor 130 is without being limited thereto.But any structure can be used, as long as energy can be formed The fine pattern of touch input is enough sensed using pen 160.It, then can be for example, bridge can be formed on anticreep gas-bearing formation first Touch-sensing electrode is formed thereon, therebetween inserted with insulating layer.
Pressure sensor 120 and touch sensor 130 are connected to signal processing unit 140.Signal processing unit 140 is The unit of the signal about the pressure and touch sensed by pressure sensor 120 and touch sensor 130 is handled, it can be by dividing IC or two IC for not being connected to pressure sensor 120 and touch sensor 130 is made.
Embodiment according to the present utility model, when using with for the hand-written in application, at signal of hand-written pen 160 Reason unit 140 can realize pressure-sensing function by exporting hand-written pressure together with touch location.Description is believed later The signal processing flow of number processing unit 140.
As the material of covering window 150, it is able to use glass or flexible transparent substrate.As long as however, its it is resistance to enough to The display device that adequately protects 10 is from external force and user is allowed to watch display well by it, then is not particularly limited.
When glass is for being not particularly limited its thickness, but can be 8 μm to 1000 μm, specifically when covering window 150 20 μm to 300 μm of ground.If the thickness of covering window 150 is less than 8 μm, strength reduction and deteriorated workability.If thickness Greater than 1000 μm, then it may be decreased transparency or the weight of covering window 150 can be can increase.
In addition, being able to use flexible film substrate as covering window 150 for flexible display apparatus.As flexible film substrate Material, being able to use has the transparency and material flexible without limiting.For example, being able to use and the touching with reference to Fig. 3 description Touch similar material used in the substrate 11 of sensor 130.
The pen 160 for the input that can be used in the display device 10 according to the utility model first embodiment does not need to use In any specific function of input or configuration, and anything is able to use without limiting, as long as it has for touching Pointed shape.
For example, the pen including conductive material may be more suitable when using capacitance type pressure sensor.For example, can adopt With use the pen of conductive material without limiting, such as the pencil containing carbon, the chopsticks containing metal and by being applied with carbonaceous conductive Pen made of the non-conducting material of layer etc..
When using resistor-type pressure sensor, pen need not include conductive material, and any material can be used.
Meanwhile the stepped construction of display layer, pressure sensor and touch sensor is not limited to that knot is laminated shown in Fig. 1 Structure, and various structures can be formed.Figure 4 and 5 are schematically shown according to the utility model second and third reality respectively Apply the cross-sectional view of the display device of mode.
It include display layer 210, display layer 210 according to the display device 20 of the utility model second embodiment with reference to Fig. 4 On touch sensor 230, the pressure sensor 220 on touch sensor 230, be connected to pressure sensor 220 and touch pass The signal processing unit 240 of sensor 230 and the covering window 250 being arranged on pressure sensor 220.
It include pressure sensor 320, pressure according to the display device 30 of the utility model third embodiment with reference to Fig. 5 The touch sensor 330 on display layer 310, display layer 310 on sensor 320 is connected to pressure sensor 320 and touches and passes The signal processing unit 340 of sensor 330 and the covering window 350 being arranged on touch sensor 330.
According to the details of each component in the display device 20 and 30 of the utility model second and third embodiment with Details with reference to Fig. 1-3 display device 10 according to the utility model first embodiment described is identical.Therefore, it will be omitted Detailed description.
Now, it will be described in the input sensing method according to the display device of the utility model embodiment.Fig. 6 is to show The flow chart of input sensing method according to the utility model embodiment is shown to meaning property.
With reference to Fig. 6, when detecting the touch of the finger or pen that use user (S510), signal processing unit output is touched Position (S520).
At this point, exporting the pressure sensed by pressure sensor if application ready for use is hand-written application (S530) (S540) as write-in pressure (S550).That is, hand-written application can identify or export the pressure of pen.
Here, hand-written application is intended to include all applications using pen.For example, the use of the game application of pen also can be hand Write application.
If application ready for use is not hand-written application (S530), the pressure sensed by pressure sensor is exported (S560) as the output (S570) of usual pressure sensor.
As described above, embodiment according to the present utility model, it can be by using capacitive touch sensor and pressure Pressure is written without specific instruction device to sense in sensor.
While there has been shown and described that the particular implementation and example of the utility model, but those skilled in the art It will be understood that, it is no intended to preferred embodiment is limited the invention to, and will be to those skilled in the art Obviously.In the case where not departing from the spirit and scope of the utility model, can make various changes and modifications.
Therefore, the scope of the utility model is defined by the appended claims and the equivalents thereof.
[description of symbols]
10,20,30: display device 11: substrate
12: separating layer 13: protective layer
14: anticreep gas-bearing formation 15: touch sensor pattern layer
151: the first touch-sensing electrode, 152: the second touch-sensing electrode
16: insulating layer 17: bridge
18: passivation layer 110,210,310: display layer
120,220,320: pressure sensor 130,230,330: touch sensor
140,240,340: signal processing unit 150,250,350: covering window
160,260,360: pen.

Claims (13)

1. a kind of input pickup comprising:
Touch sensor comprising the touch sensor pattern of the pattern spacing with 1mm to 3mm；
Pressure sensor is arranged in above or below the touch sensor；With
Signal processing unit is connected to the touch sensor and the pressure sensor.
2. input pickup according to claim 1, wherein the signal processing unit will touching corresponding with pen input It touches input signal and is exported together with inputting corresponding pressure signal with the pen.
3. input pickup according to claim 1, wherein the touch sensor includes:
Substrate；
Separating layer on the substrate；
The protective layer being formed in the separating layer；
The anticreep gas-bearing formation being formed on the protective layer；
It is formed on the anticreep gas-bearing formation and the touch sensor pattern layer containing transparent conductive material；
The insulating layer being formed in the touch sensor pattern layer；With
It is formed on the insulating layer and the bridge layer containing metal material.
4. input pickup according to claim 1, wherein the touch sensor includes:
Substrate；
Separating layer on the substrate；
The protective layer being formed in the separating layer；
The anticreep gas-bearing formation being formed on the protective layer；
It is formed on the anticreep gas-bearing formation and the bridge layer containing metal material；
The insulating layer being formed on the bridge layer；With
It is formed in the touch sensor pattern layer on the insulating layer and containing transparent conductive material.
5. input pickup according to claim 3 or 4, wherein the substrate is flexible base board.
6. input pickup according to claim 1, wherein the pressure sensor is capacitance type pressure sensor.
7. input pickup according to claim 1, wherein the pressure sensor is resistor-type pressure sensor.
8. a kind of display device comprising:
Display layer；
The touch sensor being arranged in above the display layer；
Pressure sensor above or below the display layer is set；With
It is connected to the signal processing unit of the touch sensor and the pressure sensor, wherein the touch sensing utensil There is the pattern spacing of 1mm to 3mm.
9. display device according to claim 8 further includes being arranged in the display layer, the touch sensor and institute State the covering window above pressure sensor.
10. display device according to claim 9, wherein the covering window is made of glass.
11. display device according to claim 9, wherein the covering window is made of flexible film substrate.
12. display device according to claim 8, wherein the signal processing unit will touching corresponding with pen input It touches input signal and is exported together with inputting corresponding pressure signal with the pen.
13. display device according to claim 8, wherein the display layer is oled layer or LCD layer.
CN201920287240.2U 2018-03-07 2019-03-07 Input pickup and display device including the input pickup Active CN209690890U (en)

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KR10-2018-0027126 2018-03-07
KR20180027126 2018-03-07
KR1020180167935A KR102532982B1 (en) 2018-03-07 2018-12-21 Input Sensor and Display Device Including the Same
KR10-2018-0167935 2018-12-21

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KR101822350B1 (en) 2008-02-28 2018-01-25 쓰리엠 이노베이티브 프로퍼티즈 컴파니 Touch screen sensor
JP2010055385A (en) 2008-08-28 2010-03-11 Newcom Inc Digitizer capable of discriminating among indicators
US9195351B1 (en) * 2011-09-28 2015-11-24 Amazon Technologies, Inc. Capacitive stylus
JP5995152B2 (en) * 2014-10-31 2016-09-21 大日本印刷株式会社 Intermediate base film, conductive film and touch panel sensor
KR20160056682A (en) 2014-11-12 2016-05-20 삼성전기주식회사 Apparatus and method for sensing touch pressure
US10282046B2 (en) * 2015-12-23 2019-05-07 Cambridge Touch Technologies Ltd. Pressure-sensitive touch panel
KR101866632B1 (en) * 2016-04-29 2018-06-11 동우 화인켐 주식회사 Color Filter Having Touch Sensor Integrated Therein and Fabrication Method for the Same
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