CN202904545U - Display device with touch panel - Google Patents

Display device with touch panel Download PDF

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Publication number
CN202904545U
CN202904545U CN 201220585884 CN201220585884U CN202904545U CN 202904545 U CN202904545 U CN 202904545U CN 201220585884 CN201220585884 CN 201220585884 CN 201220585884 U CN201220585884 U CN 201220585884U CN 202904545 U CN202904545 U CN 202904545U
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CN
China
Prior art keywords
touch
noise
display device
layer
touch panel
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Expired - Fee Related
Application number
CN 201220585884
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Chinese (zh)
Inventor
张汝箱
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHEJIANG JIXIANG CABLE MANUFACTURING Co Ltd
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Individual
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Priority to CN 201220585884 priority Critical patent/CN202904545U/en
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Publication of CN202904545U publication Critical patent/CN202904545U/en
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Abstract

A display device is provided with a touch panel effectively intercepting noise to prevent malfunction of a touch screen of a display panel. The display device with the touch panel comprises a display panel. The touch panel is connected to a bonding layer of the display device. A noise intercepting layer on the rear surface of the whole touch panel prevents noise from being introduced to the touch panel from the display panel. A metal circular-module noise intercepting layer surrounds a peripheral noise intercepting layer and a noise intercepting layer with low specific resistance. The metal circular-module noise intercepting layer and a ground terminal are connected to an electrical noise intercepting layer and a metal ring.

Description

Display device with touch panel
Technical field
The utility model relates to a kind of display device a touch-screen, and more especially, a display device has a touch-screen, effectively tackles display panel of noise generation and prevents that touch-screen is malfunctioning.
Background technology
Make in recent years input information be widely used for computer system as a kind of message input device by the various display devices on the touch screen.Touch-screen moves or selects to show that the user of information uses his/her finger or writing pencil, therefore is easy to by anyone use, no matter age or sex.
Produce a display device or touch location and output touch information on the touch screen induction touch screen, and the contact details of computer system analysis and fill order.As display device, flat-panel monitor, such as liquid crystal display, plasma display device or organic LED display device generally are used for.
Touch screen technology is divided into resistance-type, condenser type, and infrared-type, ultrasonic type or electromagnetic type are according to method for sensing.In these types, resistance-type, condenser type are the manufacturing costs of favourable aspect, therefore are widely used.Resistance film (transparent conductive film) between the upper and lower of the contact that the touch sensible identification change in voltage of resistive touch screen produces is because contact.Yet resistive touch screen is disadvantageous, and touch-screen or display device damage easily because the transmittance of contact and touch-screen is low, owing to be scattered in the resistance film between the air layer.
Capacitive touch screen has overcome the small charge that the understanding motion of the touch sensible capacitance variations of resistive touch screen produces, and the conductor of touch point is such as human body or writing pencil, touch-screen.Capacitive touch screen has high-durability owing to use tempered glass, the high and good touch sensible ability of transmittance, and make multi-point touch, therefore attracted extensive concern.
In general, the production of a touch-screen is connected to the display device on top as a panel, touches input thereby make.Yet it is disadvantageous that this display device has contact panel, the fault that the touch-screen of a touch sensor is possible, because the display device of the noise producing that electromagnetic interference (EMI) (electromagnetic interference (EMI)) causes, that is, and electrostatic force.
Summary of the invention
The purpose of this utility model is: provide a display device that a touch-screen is arranged, effectively tackle display panel of noise generation and prevent that touch-screen is malfunctioning.
The technical scheme that its technical matters that solves the utility model adopts is: in order the advantage such as to realize this goal, according to purpose of the present invention, as embodiment with outside describing widely, a display device has a touch panel to comprise a display panel, touch panel is connected to display and passes through bonding coat, the noise intercept layer is introduced in touch panel at the electrical noise that prevents of the rear surface of whole touch panel from display panel, noise intercept layer on the becket surrounds the edge noise intercept layer and has lowlyer than resistance noise intercept layer, and ground based terminal is connected to electrical noise intercept layer and becket.Touch panel comprises infrabasal plate, and its outer surface is provided with the noise intercept layer, becket pattern and ground based terminal, and the inside surface of a capacitive touch sensors is formed at infrabasal plate, and the touch sensor on covered substrate.This display device can also comprise that the touch sensor touch controller that circuit film is electrically connected drives touch sensor, and the substrate of circuit film lower side surface along substrate of extending crooked inside surface and be connected to ground terminal and be formed on the lower substrate in rear surface.This circuit film expansion may be configured, and it is larger than width that the first of such width is connected to ground based terminal, and another part is along the side infrabasal plate surface of bending.Becket pattern and ground based terminal are integrally formed metal levels.This display device can also comprise that at least one metal wire is formed on the becket of noise intercept layer and electrical connection.If display device, liquid crystal indicator, have at least a metal wire may with the liquid crystal indicator of the grid line direction of the liquid crystal display device of black-matrix layer.Have a metal wire at least, the width of line is 1 μ m to 3 μ m.
The beneficial effects of the utility model are: can effectively prevent from during use disturbing the touching device that causes malfunctioning because of signal.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is that the display device of a longitudinal cross-section view has a touch pad according to the first embodiment of the present invention.
The noise that Fig. 2 and Fig. 3 illustrate discharge path according to the pattern that has or do not exist a becket according to the first embodiment of the present invention.
Fig. 4 is the part in the planar electrode structure, and a capacitive touch sensors as shown in Figure 1.
Fig. 5 is that syndeton and the ground based terminal touch screen surface that is positioned at the rear between the view specification of longitudinal cross-section is shown in Figure 4.
Fig. 6 is that a rear checks that pattern and the metal wire of a becket of a touch panel explanation form a noise intercept layer.
Embodiment
Display device shown in Figure 1 comprises display panel 40 and is connected to the touch pad 10 on display panel 40 surfaces by adhesive linkage 30.
Display panel 40 is flat-panel monitor, such as liquid crystal display, plasma display device or organic LED display device.For example, if a liquid crystal indicator is intended for display panel 40, this liquid crystal indicator comprises on the colored filter substrate and forms color filter array, thin film transistor (TFT) array on thin film transistor base plate forms, the colored filter substrate and the very thin film transistor substrate that form between liquid crystal layer, polaroid is connected respectively to colored filter substrate and the thin film transistor base plate of outside surface.Liquid crystal indicator drives liquid crystal layer and adopts transverse electric field or vertical electric field according to picture signal, thereby shows image.
Transparent adhesion layer 30 is the display panels 40 that are applicable to whole surface, and touch pad 10 is connected to 40 to 30 layers adhesion of display panel.The elastic resin that 30 layers adhesion forms, for example, super in view of resin (machine), this is an acrylic acid ultraviolet curable resin, can be used for.Support vector machine has improved popularity and resistance to impact.
Touch panel 10 comprises on touch sensor 14 infrabasal plates and forms 16, and a upper surface that covers substrate 12 is positioned at touch sensor 14.Glass or transparent polymer that infrabasal plate 16 and covered substrate 12 form.In addition, covered substrate 12 may form tempered glass and has high-durability.Touch-screen 10 adopts the touch sensible 14 of capacitive touch sensors to admit the small charge that the capacitance variations motion produces, the conductor of touch point, and such as human body or writing pencil, touch-screen 10.Touch sensor 14 is electrically connected to touch controller and is installed in circuit film, such as flexible print circuit (plate), by this circuit film.Touch controller provides a touch sensor 14 that drives the touch sensor 14 of signal and receive induced signal, thereby judges whether or do not contact to be current and a touch location.
18 layers of display panel 40 that prevents radiated noise of noise interception are introduced in touch-screen 10 and the display board 40 that forms between the touch pad 10, namely in 10 of the rear surface of whole touch panel.It is by the touch-screen 10 on the rear surface of deposit transparent conductive layer that noise is tackled 18 layers, that is, the outside surface substrate 16 of bottom, using method is such as sputter or chemical vapor deposition (cardiovascular disease).Transparency conducting layer forms a transparent conductive material, such as indium tin oxide (oxidation), and indium zinc oxide (thickness), indium tin zinc oxide or antimony tin oxide.18 layers of the noise interception is to be connected electrically to ground terminal 22, as shown in Figures 2 and 3.Ground based terminal 22 is connected on the ground soft board by power supply.Therefore, noise intercept layer 18 displacement noises, then radiation introduces noise intercept layer 18 from display panel 40, and electrostatic force is to ground based terminal 22, thus the display panel 40 that prevents radiated noise is introduced in touch-screen 10.Noise intercept layer 18 is formed on whole rear infrabasal plate surface 16, and all electrical equipment are introduced the viewing area of noise and the display panel 40 of peripheral driving circuit area is the touch-screen 10 of a touch-sensitive area and external zones thereby can tackle.
Transparency conducting layer has higher resistance as noise intercept layer 18.Therefore, if the pattern of becket 20 is non-existent.The noise intercept layer 18 in an area is near ground based terminal 22, the i.e. rapid displacement noise of lower part, but on the noise intercept layer 18 in the area top away from ground based terminal 22, thereby the time discharge noise of cost postpones because the high resistance noise can be introduced touch-screen 10 by ground terminal 22.In this case, the noise that some areas on touch-screen 10 tops produce when admitting noise as a normal sensing signal or nonsensical touch, thereby the possible fault of touch-screen 10.
On the other hand, be formed on edge noise intercept layer 18 if becket pattern 20 has low resistance than transparency conducting layer, as shown in the figure, even the noise intercept layer 18 of this area is away from ground based terminal 22, that is, top, discharge noise is by becket pattern 20 rapidly.That is, no matter noise intercept layer 18 rapid displacement noises pass through the pattern 20 of becket apart from ground based terminal 22 to ground based terminal 22.Therefore, the noise of introducing can effectively prevent owing to noise discharge delay noise intercept layer 18 for some regional touch-screens 10 from display panel 40.Therefore, the touch-screen 10 of fault can stop owing to introducing the touch pad 10 of noise from 40 display panels.
Capacitive touch sensors 14 comprises 142 of the first rows of the sensing electrode of a diversification, a plurality of the first sensing electrodes 141 are connected to horizontal direction (namely, in X-direction) first connecting electrode 143, be connected to vertical direction (namely with 145 electrodes of sensing of sensing electrode line 146 one of them diversification, in Y direction) the first connecting electrode 147, in a touch-sensitive area prefecture.A plurality of the first sensing electrode lines 142 are installed in vertical direction (in Y direction), and the sensing electrode line 146 of diversification is installed in horizontal direction (in X-direction).First and second sensing electrode 141 and 145 is formed on the shape of diamond, but can form various shapes.In first and second connecting electrode 143 and the 147 cross one another situations, insulation course (not shown) is first and second connecting electrode 143 and 147 between the go-between.First and second sensing electrode 141 and 145 and two connecting electrodes 147 form a transparency conducting layer, and the insulation course of the metal level formation of the first connecting electrode 143 formation is transparency conducting layer and metal level between the go-between.First connecting electrode 143 is to be connected electrically to first sensing electrode 141 to pass insulation course by contact hole.In addition, first and second induction electrode 141 and the 145 and first connecting electrode 143 can form a transparency conducting layer and the first connecting electrode 147 may form that a metal level forms, and two connect 147 electrodes is connected electrically to induction electrode 145 and passes through contact hole.First and second sensing electrode 141 and electric capacity of 145 common formation touch object with conduction and touch covered substrate 12 and change electric capacity, thereby export a kind of sensing signal.
In addition, capacitive touch sensors 14 comprises that also first route line 148 of a diversification is electrically connected to respectively first sensing electrode line 142 and is seated in touch-sensitive area, a route line 160 is electrically connected to respectively the induced electricity polar curve and is positioned at 146 touch-sensitive area, be connected respectively to first and two route lines 148 and 160 with 170 conductive pads, the touch-sensitive area office office automation around in an area.The first via by line 148 respectively with first sensing electrode line 142 of left and right end be connected to corresponding pad 170 and be located at the office automation of a pad outside lower some areas.Two route lines 160 are connected respectively to the sensing electrode line 146 of low side and are connected to corresponding pad pad and are being positioned at area 170.First and second route line 148 and 160 and the pad 170 be formed at same metal level once with two connecting electrodes 143 and 147 in the touch-sensitive area prefecture.
For example, comprise that at a metal pattern first and second route line 148 and 160 and 170 Outlying area and one first and connecting electrode 143 and 147 are formed on infrabasal plate 16 in the touch-sensitive area prefecture, insulation course has the pattern of the formed metal of contact hole, and transparent conductive patterns comprise first and second induction electrode 141 and 145 and another first and second connecting electrode 143 and 147 insulation courses on form.
The pad of this more than 170 yuan of formation is to be connected electrically to a flexible PCB 180, thereby is to be connected electrically to the touch controller (not shown) to be installed in flexible PCB 180.Touch controller not only drives first and second sensing electrode line 142 with 146 touch sensor 14 but also whether sensation or not contact be at present by first and second sensing electrode line 142 that receives induced signal output and 146 and the transducing signal time per unit integrated and x axle and this first and second sensing electrode line 142 of y shaft position and the 146 output transducing signals of sense organ touch location.
It is to be connected electrically to the touch-screen 10 that ground terminal 22 is formed on the rear surface that the platform of the side of an expansion extension moulds 180, the plate 180 that extends is the touch-screens 10 along the lower substrate 16 of the side surface of bending, as shown in Figure 5, be to be connected electrically to the infrabasal plate 16 that ground terminal 22 is formed on the rear surface.180 parts that comprise of the soft board of expansion have a width lesser curvature side infrabasal plate surface 16, and partly have large width, are connected to ground terminal 22.Platform is moulded the noises of 180 dischargings, from noise intercept layer 18 by becket pattern 20 and ground based terminal 22, power supply earthward, thus eliminate noise.
As mentioned above, has touch pad according to the first embodiment of the present invention in display device, complete 10 edges that are connected to display panel 40 and becket pattern 20 of the rear surface of the touch panel that noise intercept layer 18 formation transparency conducting layers form form noise intercept layer 18, thereby interception is introduced the display panel 40 of noise regardless of noise intercept layer 18 and ground based terminal 22 between the distance effectively.Therefore, introduce 40 minimums of touch-screen 10 display panels of noise, therefore the touch-screen 10 of fault is because noise is avoidable, and the touch controller 10 of the noise of introducing by touch sensor minimizes, thereby induced signal, drive expanded range, thereby improve the touch controller of sensing capabilities.

Claims (5)

1. display device comprises: a display panel; Touch panel is connected to display and passes through bonding coat; The noise intercept layer is introduced in touch panel at the noise that prevents of the rear surface of whole touch panel from display panel; Noise intercept layer on becket surrounds the edge noise intercept layer and has lower than resistance noise intercept layer; Be connected to electrical noise intercept layer and becket with a ground based terminal; It is characterized in that: described contact panel comprises infrabasal plate, and one of them is outside surface, the touch panel of rear surface; The infrabasal plate that forms on the inside surface of a touch sensor and covered substrate; Be formed on touch sensor.
2. display device according to claim 1 is characterized in that: the touch sensor touch controller driving touch sensor that the sort circuit thin-film electro connects; The substrate of the lower side surface along substrate that extends crooked inside surface with circuit film and be connected on the outside surface of ground based terminal and form infrabasal plate; It is larger than width that the first of the such width of described circuit film expanded configuration is connected to ground based terminal, and another part is along the side infrabasal plate surface of bending.
3. display device according to claim 1, it is characterized in that: the pattern of becket and ground based terminal are integrally formed metal levels.
4. display device according to claim 1 is characterized in that: wherein the noise intercept layer is to form a transparency conducting layer, comprises that at least one metal wire is formed on the becket of noise intercept layer and electrical connection.
5. display device according to claim 1, it is characterized in that: liquid crystal indicator comprises the diversification of a plurality of gate lines and data line, be installed in respectively vertical direction and form each other a pixel region, a plurality of thin film transistor (TFT)s are formed on pixel region and mutually intersect at separately door line and corresponding data line, be formed on many gate lines of corresponding area with a black-matrix layer, the diversification of data line and the thin film transistor (TFT) of diversification prevent that light from leaking; Consistent black-matrix layer with at least one metal wire; Wherein having a metal wire at least is that consistent black-matrix layer is in the gate line direction; Wherein have a metal wire at least, the width of line is 1 μ m to 3 μ m.
CN 201220585884 2012-11-08 2012-11-08 Display device with touch panel Expired - Fee Related CN202904545U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220585884 CN202904545U (en) 2012-11-08 2012-11-08 Display device with touch panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220585884 CN202904545U (en) 2012-11-08 2012-11-08 Display device with touch panel

Publications (1)

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CN202904545U true CN202904545U (en) 2013-04-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220585884 Expired - Fee Related CN202904545U (en) 2012-11-08 2012-11-08 Display device with touch panel

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104679314A (en) * 2013-11-27 2015-06-03 浙江金徕镀膜有限公司 Manufacturing method of touch display device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104679314A (en) * 2013-11-27 2015-06-03 浙江金徕镀膜有限公司 Manufacturing method of touch display device
CN104679314B (en) * 2013-11-27 2018-02-06 浙江金徕镀膜有限公司 The preparation method of touch control display apparatus

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C14 Grant of patent or utility model
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ASS Succession or assignment of patent right

Owner name: JIANG XIAOHUA

Free format text: FORMER OWNER: ZHANG RUXIANG

Effective date: 20130718

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 252525 LIAOCHENG, SHANDONG PROVINCE TO: 325600 HANGZHOU, ZHEJIANG PROVINCE

TR01 Transfer of patent right

Effective date of registration: 20130718

Address after: 325600 Zhejiang city of Ling'an Province Jincheng Street Plaza Garden building 11 room 402

Patentee after: Jiang Xiaohua

Address before: 252525 Shandong city of Liaocheng province Guanxian East Town Xinzhuang Village No. 254

Patentee before: Zhang Ruxiang

ASS Succession or assignment of patent right

Owner name: ZHEJIANG JIXIANG CABLE MANUFACTURING CO., LTD.

Free format text: FORMER OWNER: JIANG XIAOHUA

Effective date: 20130913

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 325600 HANGZHOU, ZHEJIANG PROVINCE TO: 311301 HANGZHOU, ZHEJIANG PROVINCE

TR01 Transfer of patent right

Effective date of registration: 20130913

Address after: 311301 Linglong Street Industrial Zone, Ling'an, Zhejiang

Patentee after: ZHEJIANG JIXIANG CABLE MANUFACTURING CO., LTD.

Address before: 325600 Zhejiang city of Ling'an Province Jincheng Street Plaza Garden building 11 room 402

Patentee before: Jiang Xiaohua

C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130424

Termination date: 20131108