CN104267864B - A kind of on cell touch LCD display - Google Patents
A kind of on cell touch LCD display Download PDFInfo
- Publication number
- CN104267864B CN104267864B CN201410556236.3A CN201410556236A CN104267864B CN 104267864 B CN104267864 B CN 104267864B CN 201410556236 A CN201410556236 A CN 201410556236A CN 104267864 B CN104267864 B CN 104267864B
- Authority
- CN
- China
- Prior art keywords
- alignment film
- bucking electrode
- lcd display
- cell touch
- touch lcd
- 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
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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
- G06F3/044—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
- 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
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04107—Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds
Abstract
The present invention provides a kind of on cell touch LCD display, including: lower glass substrate, lower polaroid, lower alignment film, upper alignment film, liquid crystal layer, upper polaroid, Touching electrode, top glass substrate and several bucking electrode lines；It is equipped with several orientation projection on described upper alignment film and lower alignment film, several bucking electrode lines described are all electrically connected to ground wire, described upper alignment film and lower alignment film at least one be provided with described bucking electrode line, described bucking electrode line passes each display unit view field on upper alignment film or lower alignment film.On cell touch LCD display of the present invention decreases the Touching electrode crosstalk to TFT by arranging the bucking electrode line being electrically connected with ground wire, also ensures that the thickness of display screen does not increases simultaneously, improves the quality of on cell touch LCD display.
Description
Technical field
The present invention relates to touch LCD display, particularly relate to a kind of on-cell touch LCD display.
Background technology
The development of electronic product, occurs in that at present and touches the On-cell touch LCD display technology combined with display,
This Display Technique as it is shown in figure 1, mainly by Touching electrode 11 by before independent of liquid crystal display change into being arranged on upper partially
Between tabula rasa 12 and glass substrate 13, and form touch control electrode by vacuum sputtering on glass substrate 13.This kind of basic structure
This display screen can be made to become thinner on the basis of ensureing display hardness.But this on-cell due to Touching electrode with
Mutual crosstalk between TFT, it may appear that TFT unusual switch.It addition, in Fig. 1, label 14 is liquid crystal layer, label 15 is lower glass base
Plate, label 16 is lower polaroid, and label 17 is backlight module.
Fig. 2 is the another kind of solution for cross-interference issue.Importantly set on the polaroid 21 of visible surface side
Putting one layer of shielding electrode layer 211, opposite side arranges touch electrode layer 212, but the setting of this shielding electrode layer 211 due to from
The gate electrode of TFT is distant, and its resistance to crosstalk ability is poor.It addition, only by the simple bucking electrode connecting earth terminal
Its resistance to crosstalk effect is relative or poor, particularly when TFT is in critical conduction or cut-off state, and this resistance to crosstalk
Poor effect performance more prominent.In Fig. 2, label 22 is glass substrate, and label 23 is lower polaroid, and label 24 is liquid crystal
Layer.
Summary of the invention
It is an object of the invention to provide a kind of on-cell touch LCD display, this one on-cell touch LCD shows
Show that device passes through several bucking electrode lines and reduces crosstalk.
The present invention provides a kind of on-cell touch LCD display for achieving the above object, including: lower glass substrate, sets
Lower polaroid, the lower alignment film being located on described lower polaroid in described lower glass substrate, it is located on described lower alignment film
Upper alignment film, be located at liquid crystal layer between described upper alignment film and lower alignment film, the upper polaroid being located on described upper alignment film,
It is located at the Touching electrode on described upper polaroid, the top glass substrate being located on described Touching electrode and several shielding electricity
Polar curve；Being equipped with several orientation projection on described upper alignment film and lower alignment film, several bucking electrode lines described are all electrically connected with
To ground wire, described upper alignment film and lower alignment film at least one be provided with described bucking electrode line, described bucking electrode line passes
Each display unit view field on upper alignment film or lower alignment film.
Described bucking electrode line is located near the orientation projection of alignment film or lower alignment film.
Described bucking electrode line is located in alignment film or lower alignment film.
Described bucking electrode line is located in alignment film and lower alignment film simultaneously.
Described bucking electrode line is located on the contact surface of alignment film and upper polaroid.
Described bucking electrode line is located on the contact surface of lower alignment film and lower polaroid.
Described bucking electrode line is located at alignment film and the contact surface of upper polaroid and lower alignment film and lower polaroid simultaneously
Contact surface on.
Described bucking electrode line uses gaseous phase deposition, vacuum sputtering or laser ablation to be formed.
Each described bucking electrode line is connected with ground wire by an Absorption Capacitance.
Using such scheme, the bucking electrode line arranged in a kind of on-cell touch LCD display of the present invention passes through
Connection with earth lead decreases the Touching electrode crosstalk to TFT, also ensures that the thickness of display screen does not increases simultaneously, improves
The quality of on-cell touch LCD display.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings, by the detailed description of the invention of the present invention is described in detail, technical scheme will be made
And other beneficial effect is apparent.
In accompanying drawing,
Fig. 1 is a kind of common on-cell touch LCD display device structure schematic diagram；
Fig. 2 is another kind of on-cell touch LCD display device structure schematic diagram；
Fig. 3 is the structural representation of an embodiment in the present invention a kind of on-cell touch LCD display embodiment one；
Fig. 4 is the structural representation of an embodiment in the present invention a kind of on-cell touch LCD display embodiment two；
Fig. 5 is the structural representation of an embodiment in the present invention a kind of on-cell touch LCD display embodiment three；
Fig. 6 is that in one on-cell touch LCD display embodiment one to three of the present invention, the wiring of bucking electrode line is shown
It is intended to；
Fig. 7 is bucking electrode line schematic wiring diagram in one on-cell touch LCD display embodiment four of the present invention.
Detailed description of the invention
By further illustrating the technological means and effect, being preferable to carry out below in conjunction with the present invention that the present invention taked
Example and accompanying drawing thereof are described in detail.
Embodiment one:
Refering to Fig. 3, the present invention provides a kind of on-cell touch LCD display, including: lower glass substrate 37, is located at institute
State the lower polaroid 38 in lower glass substrate 37, the lower alignment film 33 being located on described lower polaroid 38, be located at described lower orientation
Upper alignment film 32 on film 33, it is located at liquid crystal layer 34 between described upper alignment film 32 and lower alignment film 33, is located at described upper orientation
Upper polaroid 36, the Touching electrode 4 being located on described upper polaroid 36 on film 32, it is located on described Touching electrode 4
Top glass substrate 35 and several bucking electrode lines 5.It is equipped with several orientation on described upper alignment film 32 and lower alignment film 33 to dash forward
Playing 31, several bucking electrode lines 5 described are all electrically connected to ground wire.
Simultaneously refering to Fig. 6, described bucking electrode line 5 is located in described upper alignment film 32, and described bucking electrode line 5 is through every
Individual display unit view field on upper alignment film 32 or lower alignment film 33.So being not limited to this, described bucking electrode line sets
In described lower alignment film (not shown).
This display unit X can be made by Touching electrode 4 electric capacity to be changed the electric field brought by this bucking electrode line 5
During change, intensity and the speed of change will be weakened, thus reduce this Touching electrode 4 impact on TFT.
Embodiment two:
Refering to Fig. 4, compared with embodiment one, present embodiment is arranged in upper alignment film 32 and lower alignment film 33 simultaneously
Bucking electrode line 5, such set-up mode can further reduce the Touching electrode 4 crosstalk to TFT.
But such setting, reduces the deflecting electric field driving liquid crystal molecule deflection the most simultaneously.Can for this problem
With suitable increase driving voltage, the increase of this driving voltage itself can also overcome the crosstalk of Touching electrode 4.
Embodiment three:
Refering to Fig. 5, in the present embodiment, connecing of alignment film 32 and upper polaroid 36 be located at by described bucking electrode line 5
In contacting surface, and described bucking electrode line 5 is typically formed by gaseous phase deposition, vacuum sputtering or laser ablation.At upper alignment film
32 surface configuration bucking electrode lines 5 are relatively simple in processing technology, it is achieved convenient, cost is relatively low.So do not limit
In this, described bucking electrode line can also be located at lower alignment film and (not shown) on the contact surface of lower polaroid individually or simultaneously.
Embodiment four:
Refering to Fig. 7, present embodiment is only in that with the difference of above-mentioned embodiment, and described bucking electrode line 5 leads to
Cross an Absorption Capacitance 6 to be connected with earth terminal GND.This Absorption Capacitance 6 can reduce the change that Touching electrode 4 capacitance variations is brought
Change the transition of electric field, reduce crosstalk bur.
In sum, during the present invention provides a kind of on-cell touch LCD display arrange bucking electrode line by with
The connection of earth lead decreases the Touching electrode crosstalk to TFT, also ensures that the thickness of display screen does not increases simultaneously, improves
The quality of on-cell touch LCD display.
The above, for the person of ordinary skill of the art, can be according to technical scheme and technology
Other various corresponding changes and deformation are made in design, and all these change and deformation all should belong to the claims in the present invention
Protection domain.
Claims (9)
1. an on-cell touch LCD display, it is characterised in that including: lower glass substrate, be located at described lower glass substrate
On lower polaroid, the lower alignment film being located on described lower polaroid, the upper alignment film being located on described lower alignment film, be located at institute
State liquid crystal layer between alignment film and lower alignment film, the upper polaroid being located on described upper alignment film, be located at described upper polaroid
On Touching electrode, the top glass substrate being located on described Touching electrode and several bucking electrode lines；Described upper orientation
Being equipped with several orientation projection on film and lower alignment film, several bucking electrode lines described are all electrically connected to ground wire, described on join
To film and lower alignment film, at least one is provided with described bucking electrode line, and described bucking electrode line passes each display unit upper
View field on alignment film or lower alignment film.
On-cell touch LCD display the most according to claim 1, it is characterised in that described bucking electrode line is located at
Near the orientation projection of upper alignment film or lower alignment film.
On-cell touch LCD display the most according to claim 2, it is characterised in that described bucking electrode line is located at
In upper alignment film or lower alignment film.
On-cell touch LCD display the most according to claim 2, it is characterised in that described bucking electrode line is simultaneously
It is located in alignment film and lower alignment film.
On-cell touch LCD display the most according to claim 2, it is characterised in that described bucking electrode line is located at
On the contact surface of upper alignment film and upper polaroid.
On-cell touch LCD display the most according to claim 2, it is characterised in that described bucking electrode line is located at
On the contact surface of lower alignment film and lower polaroid.
On-cell touch LCD display the most according to claim 2, it is characterised in that described bucking electrode line is simultaneously
It is located on the contact surface of alignment film and the contact surface of upper polaroid and lower alignment film and lower polaroid.
8. according to the on-cell touch LCD display according to any one of claim 5 to 7, it is characterised in that described screen
Covering electrode wires uses gaseous phase deposition, vacuum sputtering or laser ablation to be formed.
On-cell touch LCD display the most according to claim 1, it is characterised in that each described bucking electrode line
It is connected with ground wire by an Absorption Capacitance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410556236.3A CN104267864B (en) | 2014-10-20 | 2014-10-20 | A kind of on cell touch LCD display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410556236.3A CN104267864B (en) | 2014-10-20 | 2014-10-20 | A kind of on cell touch LCD display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104267864A CN104267864A (en) | 2015-01-07 |
| CN104267864B true CN104267864B (en) | 2016-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410556236.3A Expired - Fee Related CN104267864B (en) | 2014-10-20 | 2014-10-20 | A kind of on cell touch LCD display |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105183212A (en) * | 2015-08-04 | 2015-12-23 | 武汉华星光电技术有限公司 | Touch screen LCD panel and touch screen mobile phone |
| CN106354313B (en) * | 2016-08-29 | 2019-05-14 | 厦门天马微电子有限公司 | Touch-control display panel and touch control display apparatus |
| CN111124174B (en) * | 2019-11-25 | 2022-11-18 | 江西卓讯微电子有限公司 | Touch screen and electronic device |
| CN114913826A (en) * | 2022-05-16 | 2022-08-16 | 星源电子科技(深圳)有限公司 | Manufacturing method of low-crosstalk liquid crystal module |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204102107U (en) * | 2014-10-20 | 2015-01-14 | 深圳同兴达科技股份有限公司 | A kind of on-cell touch LCD display |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103543544A (en) * | 2012-07-16 | 2014-01-29 | 瀚宇彩晶股份有限公司 | Touch control and liquid crystal lens module and display device with touch control and liquid crystal lens module |
| KR20150113050A (en) * | 2013-01-22 | 2015-10-07 | 캄브리오스 테크놀로지즈 코포레이션 | Nanostructure transparent conductors having high thermal stability for esd protection |
| CN104090677A (en) * | 2014-06-20 | 2014-10-08 | 京东方科技集团股份有限公司 | Embedded-type touch screen and display device |
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- 2014-10-20 CN CN201410556236.3A patent/CN104267864B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204102107U (en) * | 2014-10-20 | 2015-01-14 | 深圳同兴达科技股份有限公司 | A kind of on-cell touch LCD display |
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| Publication number | Publication date |
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| CN104267864A (en) | 2015-01-07 |
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Granted publication date: 20161116 Termination date: 20211020 |