CN209357029U - In cell touch screen - Google Patents
In cell touch screen Download PDFInfo
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- CN209357029U CN209357029U CN201822025969.0U CN201822025969U CN209357029U CN 209357029 U CN209357029 U CN 209357029U CN 201822025969 U CN201822025969 U CN 201822025969U CN 209357029 U CN209357029 U CN 209357029U
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- glue
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- cell touch
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Abstract
The utility model provides a kind of In cell touch screen, including LCD, conductive silver glue, flexible circuit board and set on LCD colored filter upper surface polarisation chip assembly, conductive silver glue includes the first glue section, the second glue section and third glue section, second glue section extends along the edge of the pressure sensitive adhesive of the width direction fitting polarisation chip assembly of LCD, first glue section and third glue section are connect with two electrode frames on the thin film transistor (TFT) of LCD respectively, and the one end of thin film transistor (TFT) far from polarisation chip assembly and flexible circuit board are electrically connected.The electrostatic of In cell touch screen surface provided by the utility model is transmitted to thin film transistor (TFT) by conductive silver glue, then passes through the electric connection of thin film transistor (TFT) and flexible circuit board, and electrostatic is imported into the GND of flexible circuit board；The release of electrostatic is accelerated in the connection that ensure that polarisation chip assembly and thin film transistor (TFT), and the electrostatic on In cell touch screen is made to realize release completely.
Description
Technical field
The utility model belongs to touch screen technology field, is to be related to a kind of In cell touch screen more specifically.
Background technique
During the Product Process of In cell touch screen, two dispensing coating process of Ag is commonly used to discharge and produce
Electrostatic on product, Ag glue are only coated on the position of the right and left GND (ground wire) of LCD (liquid crystal display), and this painting is laid
Meter is had and slightly is remained on product, can not discharge completely so that electrostatic is not easy to discharge, and is understood at any time and the influence of environment, is made
At accumulation of static electricity, the performance and display effect of product are influenced whether, or even have an effect on the service life of product.
Summary of the invention
The purpose of this utility model is to provide a kind of In cell touch screens, to solve In existing in the prior art
The technical issues of electrostatic on cell touch screen can not discharge completely.
In order to achieve the above purposes, the technical solution adopted by the utility model is: provides a kind of In cell touch screen, including
LCD, flexible circuit board and set on the LCD colored filter upper surface polarisation chip assembly, polaroid combination
Part includes being attached to the pressure sensitive adhesive of the upper surface of the colored filter and being attached to the polaroid of the upper surface of the pressure sensitive adhesive,
It further include conductive silver glue, the conductive silver glue includes the first glue section, the second glue section and third glue section, and the second glue section is along described
The edge that the width direction of LCD is bonded the pressure sensitive adhesive extends, the first glue section and the third glue section respectively with the LCD
Thin film transistor (TFT) on first electrode frame connected with second electrode frame, the one end of the thin film transistor (TFT) far from the polaroid
It is electrically connected with the flexible circuit board.
Further, the first glue section and the third glue section are respectively perpendicular to the second glue section.
Further, the first glue section covers the first electrode frame, and the third glue section covers the second electrode
Frame.
Further, the left side of the first glue section is no more than the element except the left side of the first electrode frame
Rightmost edges, the right side of the first glue section are no more than the Far Left of the element except the right side of the first electrode frame
Edge.
Further, one end of connection the second glue section of the first glue section is no more than leaning on for the colored filter
The other end at the edge of the nearly thin film transistor (TFT), the first glue section deviates from the colour no more than the first electrode frame
The edge of optical filter.
Further, the left side of the third glue section is no more than the element except the left side of the second electrode frame
Rightmost edges, the right side of the third glue section are no more than the Far Left of the element except the right side of the second electrode frame
Edge.
Further, one end of connection the second glue section of the third glue section is no more than leaning on for the colored filter
The other end at the edge of the nearly thin film transistor (TFT), the third glue section deviates from the colour no more than the second electrode frame
The edge of optical filter.
Further, the top edge of the conductive silver glue at a distance from the top edge of the polarisation chip assembly for 0.5 ±
0.2mm。
Further, the polarisation chip assembly further includes the polaroid protection for being attached at the upper surface of the polaroid
Film.
Further, the conductive silver glue cover the edge of the colored filter, the pressure sensitive adhesive edge, it is described partially
The edge at the edge of mating plate and the polarizing plate protective film.
The beneficial effect of In cell touch screen provided by the utility model is: compared with prior art, the utility model
The electrostatic of In cell touch screen surface is transmitted to thin film transistor (TFT) by conductive silver glue, then passes through thin film transistor (TFT) and flexible electrical
Electrostatic is imported into the GND of flexible circuit board by the electric connection of road plate；First glue section, the second glue section and third glue section successively connect
It connects, the second glue section is bonded the edge of pressure sensitive adhesive, increases the contact area of conductive silver glue Yu polarisation chip assembly, ensure that polarisation
The release of electrostatic is accelerated in the connection of chip assembly and thin film transistor (TFT), realizes the electrostatic on In cell touch screen and releases completely
It puts, not will cause accumulation of static electricity, electrostatic is avoided to damage touch screen, to improve the antistatic effect of touch screen.
Detailed description of the invention
It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this is practical new
Some embodiments of type for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of In cell touch screen provided by the embodiment of the utility model；
Fig. 2 is the schematic enlarged-scale view in Fig. 1 at A；
Fig. 3 is the structural schematic diagram of LCD, polarisation chip assembly and conductive silver glue in Fig. 1；
Fig. 4 is the structural schematic diagram of LCD in Fig. 3；
Fig. 5 is the left view of Fig. 3.
Wherein, each appended drawing reference in figure:
1,LCD；11, colored filter；
12, thin film transistor (TFT)；121, first electrode frame；122, second electrode frame
2, polarisation chip assembly；
21, pressure sensitive adhesive；22, polaroid；23, polarizing plate protective film；
3, conductive silver glue；31, the first glue section；32, the second glue section；33, third glue section；
4, flexible circuit board；41,GND.
Specific embodiment
In order to which technical problem to be solved in the utility model, technical solution and beneficial effect is more clearly understood, with
Lower combination accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific reality described herein
It applies example to be only used to explain the utility model, is not used to limit the utility model.
It should be noted that it can be directly another when element is referred to as " being fixed on " or " being set to " another element
On one element or indirectly on another element.When an element is known as " being connected to " another element, it can
To be directly to another element or be indirectly connected on another element.
It is to be appreciated that term " length ", " width ", "upper", "lower", "front", "rear", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "top", "bottom" "inner", "outside" is that orientation based on the figure or position are closed
System, is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning are necessary
It with specific orientation, is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention,
More than, unless otherwise specifically defined.
Also referring to Fig. 1 to Fig. 5, now In cell touch screen provided by the utility model is illustrated.In cell
Touch screen, including LCD1, flexible circuit board 4 (flexible print circuit, abbreviation FPC) and the colour filter set on LCD1
The polarisation chip assembly 2 of the upper surface of mating plate 11 (Color Filter, abbreviation CF), polarisation chip assembly 2 include being attached to coloured silk
It the pressure sensitive adhesive 21 (Pressure sensitive adhesive, abbreviation PSA) of the upper surface of colo(u)r filter 11 and is attached to pressure-sensitive
The polaroid 22 (Polarizer, abbreviation POL) of the upper surface of glue 21, further includes conductive silver glue 3, and conductive silver glue 3 includes the first glue
The 31, second glue section 32 of section and third glue section 33, the second glue section 32 extend along the edge of the width direction fitting pressure sensitive adhesive 21 of LCD1,
First glue section 31 and third glue section 33 respectively with the thin film transistor (TFT) of LCD1 12 (Thin Film Transistor, abbreviation TFT)
On first electrode frame 121 and second electrode frame 122 connect, thin film transistor (TFT) 12 one end and flexible circuit far from polaroid 22
Plate 4 is electrically connected.
In cell touch screen provided by the utility model, compared with prior art, the electrostatic of In cell touch screen surface
It is transmitted to thin film transistor (TFT) 12 by conductive silver glue 3, then passes through the electric connection of thin film transistor (TFT) 12 and flexible circuit board 4, it will
Electrostatic imported into the GND41 of flexible circuit board 4；First glue section 31, the second glue section 32 and third glue section 33 are sequentially connected, the second glue
Section 32 is bonded the edge of pressure sensitive adhesive 21, increases the contact area of conductive silver glue 3 Yu polarisation chip assembly 2, ensure that polaroid
The release of electrostatic is accelerated in the connection of sub-assembly 2 and thin film transistor (TFT) 12, realizes the electrostatic on In cell touch screen and releases completely
It puts, not will cause accumulation of static electricity, electrostatic is avoided to damage touch screen, to improve the antistatic effect of touch screen.
Polarisation chip assembly 2 is attached at the upper surface of LCD1, and one side polaroid 22 plays filter action, improves In
The display effect of cell touch screen joined anti-electrostatic particle in another aspect pressure sensitive adhesive 21, so that the surface electricity of pressure sensitive adhesive 21
Resistance reaches 10^8-10^9Ω, the conductive energy of pressure sensitive adhesive 21, so that the surface of LCD1 can phase mutual conductance with pressure sensitive adhesive 21
It is logical, accelerate the release of electrostatic.
Specifically, conductive silver glue 3 is arranged on In cell touch screen by way of coating；It is easy to process.
Further, a kind of tool also referring to Fig. 1 to Fig. 3, as In cell touch screen provided by the utility model
Body embodiment, the first glue section 31 and third glue section 33 are respectively perpendicular to the second glue section 32；Both conductive silver glue 3 and polaroid had been increased
The contact area of sub-assembly 2, and shorten Electro-static Driven Comb path, accelerate Electro-static Driven Comb efficiency, reduce technology difficulty, reduces cost.
Further, a kind of tool also referring to Fig. 1 to Fig. 4, as In cell touch screen provided by the utility model
Body embodiment, the first glue section 31 cover first electrode frame 121, and third glue section 33 covers second electrode frame 122；Increase conductive silver
The contact area of glue 3 and two electrode frames ensure that the connection of polarisation chip assembly 2 Yu thin film transistor (TFT) 12, accelerate electrostatic
Release, the electrostatic on In cell touch screen made are discharged completely.
Further, a kind of tool also referring to Fig. 1 to Fig. 3, as In cell touch screen provided by the utility model
Body embodiment, the left side of the first glue section 31 are no more than the rightmost edges of the element except the left side of first electrode frame 121,
The right side of first glue section 31 is no more than the leftmost edge of the element except the right side of first electrode frame 121；Avoid conductive silver
Glue 3 is contacted with other electronic components on thin film transistor (TFT) 12, influences the release of electrostatic.
Further, a kind of tool also referring to Fig. 1 to Fig. 3, as In cell touch screen provided by the utility model
Body embodiment, one end of the second glue of connection section 32 of the first glue section 31 are no more than the close thin film transistor (TFT) of colored filter 11
12 edge, the other end of the first glue section 31 are no more than the edge away from colored filter 11 of first electrode frame 121；It avoids leading
Electric elargol 3 is contacted with other electronic components on thin film transistor (TFT) 12, influences the release of electrostatic, while avoiding conductive silver glue 3
Excessive glue risk, reduces cost.
Further, a kind of tool also referring to Fig. 1 to Fig. 3, as In cell touch screen provided by the utility model
Body embodiment, the left side of third glue section 33 are no more than the rightmost edges of the element except the left side of second electrode frame 122,
The right side of third glue section 33 is no more than the leftmost edge of the element except the right side of second electrode frame 122；Avoid conductive silver
Glue 3 is contacted with other electronic components on thin film transistor (TFT) 12, influences the release of electrostatic.
Further, a kind of tool also referring to Fig. 1 to Fig. 3, as In cell touch screen provided by the utility model
Body embodiment, one end of the second glue of connection section 32 of third glue section 33 are no more than the close thin film transistor (TFT) of colored filter 11
12 edge, the other end of third glue section 33 are no more than the edge away from colored filter 11 of second electrode frame 122；It avoids leading
Electric elargol 3 is contacted with other electronic components on thin film transistor (TFT) 12, influences the release of electrostatic, while avoiding conductive silver glue 3
Excessive glue risk, reduces cost.
Further, referring to Fig. 5, a kind of specific embodiment party as In cell touch screen provided by the utility model
Formula, the top edge of conductive silver glue 3 are 0.5 ± 0.2mm at a distance from the top edge of polarisation chip assembly 2；Guarantee that conductive silver glue 3 is complete
The release of electrostatic is accelerated at the edge of all standing pressure sensitive adhesive 21, avoids the excessive glue risk of conductive silver glue 3, reduces cost.
Further, referring to Fig. 5, a kind of specific embodiment party as In cell touch screen provided by the utility model
Formula, polarisation chip assembly 2 further include the polarizing plate protective film 23 for being attached at the upper surface of polaroid 22；Polaroid 22 is avoided to generate
It scratches, extends the service life of polaroid 22.
Further, referring to Fig. 5, a kind of specific embodiment party as In cell touch screen provided by the utility model
Formula, conductive silver glue 3 cover the edge of colored filter 11, the edge of pressure sensitive adhesive 21, the edge of polaroid 22 and polaroid and protect
The edge of film 23；The release of electrostatic is accelerated in the connection that ensure that polarisation chip assembly 2 Yu thin film transistor (TFT) 12, touches In cell
It touches the electrostatic on screen and realizes release completely.
Specifically, polaroid 22 is made of one layer of PVA (polyvinyl alcohol) and two layers of TAC (Triafol T), two layers of TAC
It is located at the two sides of PVA；Light transmission rate height, the water-tolerant of TAC, and there is certain mechanical strength, there is polarization to make
Each compound one layer of TAC in PVA layers of two sides can protect the physical characteristic of the PVA easily hydrolyzed, extend the use of polaroid 22
Service life.
When In cell touch screen is put into jig, two probes of jig respectively with conductive silver glue 3 and flexible circuit board
4 GND41 contact；
If the electrostatic on In cell touch screen does not discharge completely, the impedance value of In cell touch screen is greater than jig setting
Impedance value range, then jig is alarmed, and determines that conductive silver glue 3 does not turn on, coating is failed；
If the electrostatic on In cell touch screen discharges completely, the impedance value of In cell touch screen is less than the resistance of jig setting
Anti- value range, then jig is not alarmed, and is determined that conductive silver glue 3 is connected, is coated successfully.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (10)
1.In cell touch screen, including LCD, flexible circuit board and set on the LCD colored filter upper surface polarisation
Chip assembly, the polarisation chip assembly include being attached to the pressure sensitive adhesive of the upper surface of the colored filter and being attached to described
The polaroid of the upper surface of pressure sensitive adhesive, it is characterised in that: further include conductive silver glue, the conductive silver glue includes the first glue section, the
Two glue sections and third glue section, the second glue section extends along the edge that the width direction of the LCD is bonded the pressure sensitive adhesive, described
First glue section and the third glue section respectively on the thin film transistor (TFT) of the LCD first electrode frame and second electrode frame connect
It connects, the one end of the thin film transistor (TFT) far from the polaroid and the flexible circuit board are electrically connected.
2. In cell touch screen as described in claim 1, it is characterised in that: the first glue section and the third glue section point
Not perpendicular to the second glue section.
3. In cell touch screen as claimed in claim 2, it is characterised in that: the first glue section covers the first electrode
Frame, the third glue section cover the second electrode frame.
4. In cell touch screen as claimed in claim 3, it is characterised in that: the left side of the first glue section is no more than and is located at
The rightmost edges of element except the left side of the first electrode frame, the right side of the first glue section, which is no more than, is located at described first
The leftmost edge of element except the right side of electrode frame.
5. In cell touch screen as claimed in claim 4, it is characterised in that: the connection of the first glue section second glue
One end of section is no more than the edge close to the thin film transistor (TFT) of the colored filter, and the other end of the first glue section is not
More than the edge away from the colored filter of the first electrode frame.
6. In cell touch screen as claimed in claim 3, it is characterised in that: the left side of the third glue section is no more than and is located at
The rightmost edges of element except the left side of the second electrode frame, the right side of the third glue section, which is no more than, is located at described second
The leftmost edge of element except the right side of electrode frame.
7. In cell touch screen as claimed in claim 6, it is characterised in that: the connection of the third glue section second glue
One end of section is no more than the edge close to the thin film transistor (TFT) of the colored filter, and the other end of the third glue section is not
More than the edge away from the colored filter of the second electrode frame.
8. In cell touch screen as claimed in claim 3, it is characterised in that: the top edge of the conductive silver glue and it is described partially
The distance of the top edge of mating plate sub-assembly is 0.5 ± 0.2mm.
9. In cell touch screen as claimed in claim 8, it is characterised in that: the polarisation chip assembly further includes being attached at
The polarizing plate protective film of the upper surface of the polaroid.
10. In cell touch screen as claimed in claim 9, it is characterised in that: the conductive silver glue covers the colorized optical filtering
The edge of piece, the edge of the pressure sensitive adhesive, the polaroid edge and the polarizing plate protective film edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822025969.0U CN209357029U (en) | 2018-12-04 | 2018-12-04 | In cell touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822025969.0U CN209357029U (en) | 2018-12-04 | 2018-12-04 | In cell touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209357029U true CN209357029U (en) | 2019-09-06 |
Family
ID=67798256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822025969.0U Active CN209357029U (en) | 2018-12-04 | 2018-12-04 | In cell touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209357029U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110716341A (en) * | 2019-09-25 | 2020-01-21 | 武汉华星光电技术有限公司 | Display panel |
| CN111240074A (en) * | 2020-01-15 | 2020-06-05 | 南京中电熊猫平板显示科技有限公司 | Touch screen |
-
2018
- 2018-12-04 CN CN201822025969.0U patent/CN209357029U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110716341A (en) * | 2019-09-25 | 2020-01-21 | 武汉华星光电技术有限公司 | Display panel |
| CN111240074A (en) * | 2020-01-15 | 2020-06-05 | 南京中电熊猫平板显示科技有限公司 | Touch screen |
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