CN206115414U - Touch display module - Google Patents
Touch display module Download PDFInfo
- Publication number
- CN206115414U CN206115414U CN201620976309.9U CN201620976309U CN206115414U CN 206115414 U CN206115414 U CN 206115414U CN 201620976309 U CN201620976309 U CN 201620976309U CN 206115414 U CN206115414 U CN 206115414U
- Authority
- CN
- China
- Prior art keywords
- electrode
- earth lead
- emission electrode
- touch
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000011521 glass Substances 0.000 claims abstract description 5
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 5
- 239000010410 layer Substances 0.000 claims description 20
- 239000012790 adhesive layer Substances 0.000 claims description 9
- 239000000758 substrate Substances 0.000 claims description 8
- 230000004888 barrier function Effects 0.000 claims description 5
- 239000004568 cement Substances 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims description 2
- 239000003574 free electron Substances 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 6
- 230000005012 migration Effects 0.000 abstract description 3
- 238000013508 migration Methods 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 abstract description 2
- 230000006698 induction Effects 0.000 abstract 2
- 229920000297 Rayon Polymers 0.000 abstract 1
- 239000003292 glue Substances 0.000 abstract 1
- 230000008859 change Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Landscapes
- Electroluminescent Light Sources (AREA)
Abstract
The utility model discloses a touch display module includes a board in a poor light, a TFT base plate, a liquid crystal layer, a CF base plate, ITO layer, an insulating layer, a viscose layer, a polaroid, a OCA optics glue film and glass apron along its light -emitting orientation in proper order, the ITO layer include a plurality of touch induction unit, every touch induction unit all includes an emitting electrode, a collecting electrode and an earth connection, the earth connection is located between emitting electrode and the collecting electrode, emitting electrode and collecting electrode all are connected with a drive IC electricity, emitting electrode is used for sending low -voltage high frequency signal, the collecting electrode is used for receiving the low -voltage high frequency signal that emitting electrode throwed, emitting electrode uses alternating voltage as driving voltage, this driving voltage's wave form is sinusoidal wave, this sinusoidal wave median is 0. The utility model discloses can reduce free electron's in the earth connection migration, and can avoid the ITO material to be corroded.
Description
Technical field
This utility model is related to a kind of touch-control display module.
Background technology
Current touch-control display module generally comprise a backlight, a TFT substrate, a liquid crystal layer, a CF substrates, ITO layer,
One adhesive-layer, a polaroid, an OCA optical cement layers and a glass cover-plate, ITO layer provides touch sensing function, ITO layer for module
On be provided with some sensing units, each sensing unit includes emission electrode, receiving electrode and earth lead, emission electrode and connects
Receive electrode to electrically connect with a driving IC, emission electrode is used to send low-voltage high-frequency signal, and receiving electrode is used to receive transmitting
The low-voltage high-frequency signal that electrode is projected, emission electrode uses alternating voltage as driving voltage, the waveform of the driving voltage
For sine wave, the intermediate value of the sine wave is 1.2V；When human contact is to screen, due to human body grounding, finger is with screen just
An equivalent capacity is formed, and high-frequency signal can flow into ground wire, so, what receiving electrode was received by this equivalent capacity
The quantity of electric charge reduces, and when finger is the closer to emission electrode, electric charge reduction is more obvious, finally according to the electricity that receiving electrode is received
Intensity of flow is determining touched position.
When in use, the emission electrode in ITO layer can always exchange letter to current touch-control display module with receiving electrode
Number, and because (there is perseverance in the voltage difference that there is a forward direction between emission electrode and earth lead, between receiving electrode and earth lead
Determine reference voltage 1.2V), this voltage difference can cause the free electron above earth lead to move, and be gathered in emission electrode,
The charging neutrality of the excessive current density of receiving electrode circuit surface thin layer, can so make emission electrode, receiving electrode circuit table
The ITO materials in face are corroded, and in the migration and N-process of electric charge, the tip of circuit can have the situation of electric discharge, from
And the degree of injury of ITO circuits is increased, earth lead is migrated because of part free electron so that circuit surface shows as defect
Situation.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of touch-control display module, and it can reduce earth lead
The migration of middle free electron, and ITO materials can be avoided to be corroded.
To solve above-mentioned technical problem, the touch-control display module that this utility model is provided includes successively along its light direction
One backlight, a TFT substrate, a liquid crystal layer, a CF substrates, ITO layer, an insulating barrier, an adhesive-layer, a polaroid, an OCA light
Learn glue-line and a glass cover-plate；
Described ITO layer includes some touch sensing units, and each touch sensing unit includes that an emission electrode, one connect
Electrode and an earth lead are received, earth lead is located between emission electrode and receiving electrode, emission electrode and receiving electrode drive with one
Dynamic IC electrical connection, emission electrode is used to sending low-voltage high-frequency signal, and receiving electrode is used to receiving that emission electrode projected to be low
Voltage high frequency signal, emission electrode uses alternating voltage as driving voltage, and the waveform of the driving voltage is sine wave, the sine
The intermediate value of ripple is 0.
After above structure, this utility model compared with prior art, has the following advantages that：
Touch-control display module of the present utility model, due to being provided with insulating barrier, insulating barrier is covered on the ito layer, so, absolutely
Edge layer can increase the resistance of free electron movement, so, allow for that the free electron above earth lead is more difficult to be moved；And
And because the waveform of the driving voltage of emission electrode is 0 for the intermediate value of sine wave and the sine wave, so, due to receiving electrode
Receive the low-voltage high-frequency signal that projected of emission electrode so that the waveform of the voltage on receiving electrode also for sine wave and this just
The intermediate value of string ripple is 0, and so, when touch-control display module is used, the charge accumulation on emission electrode and receiving electrode is 0,
In this manner it is possible to avoid in electric charge and the free electron assembled on emission electrode and receiving electrode and and make ITO materials be corroded.
Description of the drawings
Fig. 1 is the structural representation of this utility model touch-control display module；
Fig. 2 is the structural representation of ITO layer；
Fig. 3 is the driving voltage oscillogram of emission electrode.
Specific embodiment
This utility model is described in more detail with reference to the accompanying drawings and detailed description.
By shown in Fig. 1～Fig. 3, this utility model touch-control display module, it includes successively a backlight along its light direction
1st, a TFT substrate 2, a liquid crystal layer 3, a CF substrates 4, ITO layer 5, an insulating barrier 6, an adhesive-layer 7, a polaroid 8, an OCA light
Learn the glass cover-plate 10 of glue-line 9 and.
Described ITO layer 5 include some touch sensing units, each touch sensing unit include an emission electrode 501,
One receiving electrode 502 and an earth lead 503, earth lead 503 is located between emission electrode 501 and receiving electrode 502, emission electrode
501 and receiving electrode 502 electrically connect with a driving IC, emission electrode 501 is for sending low-voltage high-frequency signal, receiving electrode
502 are used to receive the low-voltage high-frequency signal that emission electrode 501 is projected, and emission electrode 501 uses alternating voltage as driving
Voltage, the waveform of the driving voltage is sine wave, and the intermediate value of the sine wave is 0.
The width of described emission electrode 501, receiving electrode 502 and earth lead 503 is X, emission electrode 501 and ground connection
The spacing of line 503, receiving electrode 502 are Y, wherein X=2Y with the spacing of earth lead 503, specifically, in the present embodiment,
The width of described emission electrode 501, receiving electrode 502 and earth lead 503 is 60um, emission electrode 501 and earth lead 503
Spacing, the spacing of receiving electrode 502 and earth lead 503 be 30um.
In existing touch-control display module, the width of emission electrode 501, receiving electrode 502 and earth lead 503 is
70um, the spacing of emission electrode 501 and earth lead 503, receiving electrode 502 and the spacing of earth lead 503 are 10um, and this reality
In applying example, the width of emission electrode 501, receiving electrode 502 and earth lead 503 is disposed as into 60um, emission electrode 501 with connect
The spacing of ground wire 503, receiving electrode 502 are disposed as 30um with the spacing of earth lead 503, so, by reducing emission electrode
501st, the width of receiving electrode 502 and earth lead 503, and increase spacing, the receiving electrode of emission electrode 501 and earth lead 503
502 with the spacing of earth lead 503 so that the spacing of emission electrode 501 and earth lead 503, receiving electrode 502 and earth lead 503
Spacing increased, so so that the free electron in earth lead moves to the difficulty of emission electrode 501 and receiving electrode 502
Degree increase, can preferably avoid emission electrode 501 and receiving electrode 502 from being corroded.
The pH value of described adhesive-layer 7 is 7, and such adhesive-layer 7 is neutrality, and neutral adhesive-layer 7 will not promote ITO materials
Galvano-cautery, can preferably protect ITO materials not to be corroded.
Below only explanation is made that with regard to this utility model application preferably example, but is not to be construed as to claim
Limit, structure of the present utility model there can be other to change, be not limited to said structure.In a word, it is all of the present utility model only
The various change made in vertical scope of the claims is in protection domain of the present utility model.
Claims (5)
1. a kind of touch-control display module, it is characterised in that include a backlight (1), a TFT substrate successively along its light direction
(2), a liquid crystal layer (3), a CF substrates (4), ITO layer (5), an insulating barrier (6), an adhesive-layer (7), a polaroid (8), one
OCA optical cement layers (9) and a glass cover-plate (10)；
Described ITO layer (5) including some touch sensing units, each touch sensing unit include an emission electrode (501),
One receiving electrode (502) and an earth lead (503), earth lead (503) positioned at emission electrode (501) and receiving electrode (502) it
Between, emission electrode (501) and receiving electrode (502) are electrically connected with a driving IC, and emission electrode (501) is for sending low-voltage
High-frequency signal, receiving electrode (502) is for receiving the low-voltage high-frequency signal that emission electrode (501) is projected, emission electrode
(501) using alternating voltage as driving voltage, the waveform of the driving voltage is sine wave, and the intermediate value of the sine wave is 0.
2. touch-control display module according to claim 1, it is characterised in that：Described emission electrode (501), receiving electrode
(502) and the width of earth lead (503) is X, spacing, the receiving electrode (502) of emission electrode (501) and earth lead (503)
Y, wherein X=2Y are with the spacing of earth lead (503).
3. touch-control display module according to claim 2, it is characterised in that：Described emission electrode (501), receiving electrode
(502) and the width of earth lead (503) is 60um, spacing, the receiving electrode of emission electrode (501) and earth lead (503)
(502) it is 30um with the spacing of earth lead (503).
4. touch-control display module according to claim 1, it is characterised in that：The pH value of described adhesive-layer (7) be 7～
7.5。
5. touch-control display module according to claim 4, it is characterised in that：The pH value of described adhesive-layer (7) is 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620976309.9U CN206115414U (en) | 2016-08-28 | 2016-08-28 | Touch display module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620976309.9U CN206115414U (en) | 2016-08-28 | 2016-08-28 | Touch display module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206115414U true CN206115414U (en) | 2017-04-19 |
Family
ID=58513641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620976309.9U Expired - Fee Related CN206115414U (en) | 2016-08-28 | 2016-08-28 | Touch display module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206115414U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109597237A (en) * | 2018-12-21 | 2019-04-09 | 武汉华星光电技术有限公司 | A kind of liquid crystal display panel and device |
-
2016
- 2016-08-28 CN CN201620976309.9U patent/CN206115414U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109597237A (en) * | 2018-12-21 | 2019-04-09 | 武汉华星光电技术有限公司 | A kind of liquid crystal display panel and device |
| WO2020124842A1 (en) * | 2018-12-21 | 2020-06-25 | 武汉华星光电技术有限公司 | Liquid crystal display panel and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103823599B (en) | Electrostatic capacitive type touch screen panel | |
| CN202748751U (en) | Touch position sensing panel | |
| CN102338945B (en) | Touch liquid crystal display and color filter substrate | |
| CN205193755U (en) | Display panel and display device | |
| CN103365519A (en) | Capacitive touch screen panel | |
| CN103092441A (en) | Flexible touch sensor | |
| CN103135842A (en) | Single-layer touch sensor with crossovers | |
| CN101382718A (en) | Electronic paper display with touching function | |
| TW201405406A (en) | Touch panel | |
| CN103513823A (en) | Method and apparatus for mitigating pixel occlusion | |
| CN203616742U (en) | Touch device and display device | |
| CN105320355B (en) | Touch control display apparatus | |
| CN102955606A (en) | Substantially edgeless touch sensor | |
| CN206991268U (en) | Contact panel and display device | |
| CN103186297B (en) | A kind of capacitive touch liquid crystal display panel and liquid crystal indicator | |
| CN110737347B (en) | Suspension touch device with auxiliary capacitance excitation signal | |
| CN103164101A (en) | Capacitance touch screen based on grapheme sensors | |
| CN104991677B (en) | Touch control LCD (Liquid Crystal Display) panel and device | |
| CN103902132A (en) | Inductance-type touch screen, display panel and display device | |
| CN206115414U (en) | Touch display module | |
| CN105334992B (en) | Touch screen | |
| CN207541605U (en) | Jamproof touch-control sensing layer, touch screen and touch control display apparatus | |
| CN207676322U (en) | Capacitive touch screen structure with low etching mark | |
| CN214151663U (en) | Incell broken code touch display screen ITO's project organization | |
| CN106095205A (en) | Embedded touch control panel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191230 Address after: 343600 No.278, Shenzhen Avenue, Jinggangshan economic and Technological Development Zone, Ji'an City, Jiangxi Province Patentee after: Ji'an Jingkai District helitai Technology Co.,Ltd. Address before: 343700 Ji'an City, Jiangxi Province Taihe County Industrial Development Zone No. 1 Patentee before: JiangXi Holitech Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170419 |