CN102650914A - Liquid crystal touch screen and manufacturing method thereof - Google Patents
Liquid crystal touch screen and manufacturing method thereof Download PDFInfo
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- CN102650914A CN102650914A CN2011102374481A CN201110237448A CN102650914A CN 102650914 A CN102650914 A CN 102650914A CN 2011102374481 A CN2011102374481 A CN 2011102374481A CN 201110237448 A CN201110237448 A CN 201110237448A CN 102650914 A CN102650914 A CN 102650914A
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Abstract
The embodiment of the invention discloses a liquid crystal touch screen and a manufacturing method thereof and belongs to the technical field of liquid crystal display, and the liquid crystal touch screen and the manufacturing method thereof are used for solving the technical problem that the structure of an existing liquid crystal touch screen is too complicated. The liquid crystal touch screen comprises a gate line and an addressing line vertical to the gate line, wherein the whole or partial intersecting part of the addressing line and the gate line is provided with a conduction lug connected with the addressing line; the conduction lug and the gate line are spaced; the liquid crystal touch screen is further internally provided with a conductive support; when the liquid crystal touch screen is pressed, the conductive support is electrically connected with the gate line and the conduction lug simultaneously; and when the liquid crystal touch screen is not pressed, the conductive support is not electrically connected with the gate line or the conduction lug. The manufacturing method of the liquid crystal touch screen comprises the following steps of: forming the addressing line vertical to the gate line and the conduction lug connected with the addressing line on an array substrate; and forming the conductive support. The liquid crystal display screen is applied to the addressing device for improving the liquid crystal touch screen.
Description
Technical field
The invention belongs to technical field of liquid crystal display, be specifically related to a kind of liquid crystal touch screen and manufacturing approach thereof.
Background technology
Along with the continuous development of electronic technology, the display screen of portable mobile termianls such as mobile phone, palm PC all has touch function.General implementation is the external hanging type touch-screen at present, places one in the liquid crystal panel outside and touches device for addressing, wherein touches device for addressing and is made up of some addressed line of intersecting in length and breadth.When display screen is touched, can touch device for addressing generation electric current, the addressed line of vertical and horizontal is respectively applied for the horizontal and vertical position of confirming the touch point, confirms the position of touch point on display screen with this.
The inventor finds that there is following problem at least in prior art in realizing process of the present invention: touch device for addressing one of the liquid crystal panel extra placement in the outside, the structure that causes liquid crystal touch screen is the complicated technology problem too.
Summary of the invention
The embodiment of the invention provides a kind of liquid crystal touch screen and manufacturing approach thereof, has solved too complicated technology problem of existing liquid crystal touch screen structure.
For achieving the above object, embodiments of the invention adopt following technical scheme:
This liquid crystal touch screen comprises gate line, and the addressed line vertical with said gate line; In all or part intersection of said addressed line and said gate line, be provided with the conducting pin that links to each other with said addressed line, said conducting pin and said gate line are interruption-like; Further be provided with the conductive supporting thing in the liquid crystal touch screen, when said liquid crystal touch screen was pressed, said conductive supporting thing formed with said gate line and said conducting pin simultaneously and is electrically connected; When said liquid crystal touch screen was not pressed, said conductive supporting thing did not form with said gate line or said conducting pin and is electrically connected.
The manufacturing approach of this liquid crystal touch screen comprises:
On array base palte, form the addressed line vertical with gate line, and the conducting pin that links to each other with said addressed line;
Also comprise: form the conductive supporting thing;
Wherein, said conductive supporting thing is used for when said liquid crystal touch screen is pressed, and said conducting pin forms with said gate line through said conductive supporting thing and is electrically connected.
When display screen was touched, the conductive supporting thing was pressed downward, and made conducting pin and gate line conducting, thereby produced electric current.Through the time that electric current produces, the addressing chip calculates the line number of the gate line that produces electric current according to gate waveform, thereby confirms the position of this direction of gate line; The addressed line vertical with gate line, the position that directly produces according to electric current is confirmed to get final product.The horizontal ordinate of having confirmed the touch point respectively and the ordinate of gate line and addressed line equivalence are so confirmed the position of touch point on display screen.
Compared with prior art; Technique scheme provided by the present invention has following advantage: only on array base palte, increased the addressed line of a direction and coupled conducting pin, and matched with original gate line, realized the touch function of display screen; Touch device for addressing and need not one of extra increase; So solved too complicated technology problem of existing liquid crystal touch screen structure, and then realized the lightening of liquid crystal touch screen, reduced cost.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the liquid crystal touch screen that Fig. 1 is provided for embodiments of the invention 1;
The schematic cross-section of the liquid crystal touch screen that Fig. 2 is provided for embodiments of the invention 1;
The structural representation of the liquid crystal touch screen that Fig. 3 is provided for embodiments of the invention 2;
The schematic cross-section of the liquid crystal touch screen that Fig. 4 is provided for embodiments of the invention 2;
Fig. 5 is the manufacturing approach process flow diagram of the liquid crystal touch screen that embodiments of the invention provided.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, the every other embodiment that those of ordinary skills are obtained under the prerequisite of not paying creative work belongs to the scope that the present invention protects.
The embodiment of the invention provides a kind of liquid crystal touch screen, comprises gate line, and the addressed line vertical with gate line; In all or part intersection of addressed line and gate line, be provided with the conducting pin that links to each other with addressed line, conducting pin and gate line are interruption-like; Further be provided with the conductive supporting thing in the liquid crystal touch screen, when liquid crystal touch screen was pressed, the conductive supporting thing formed with gate line and conducting pin simultaneously and is electrically connected; When liquid crystal touch screen was not pressed, the conductive supporting thing did not form with gate line or conducting pin and is electrically connected.
Embodiment 1:
As depicted in figs. 1 and 2; The liquid crystal touch screen that the embodiment of the invention provided; Intersection at a part of addressed line 1 and gate line 2 is provided with conducting pin 11, because it is lower than the density requirement of pixel to touch the density requirement of addressing usually, designs the distribution of addressing point as the case may be.
Based on identical reason, in the embodiment of the invention, array base palte comprises the data line 3 that some and gate line 2 are vertical, and addressed line 1 is arranged at segment data line 3., data line 3 corresponding row pixels; So every at a distance from several row pixels an addressed line 1 can be set, and this addressed line 1 just is arranged on a side of this data line 3, the distribution that makes addressed line 1 is rule more; And in 4mask technology, addressed line 1 can form with data line 3 synchronously.Can certainly addressed line all be set on every data line next door, and the conducting pin all be set, make the density maximization of addressing point in the intersection of each addressed line and gate line.
When display screen was touched, conductive supporting thing 4 was pressed downward, and conductive supporting thing 4 will contact with conducting pin 11 and gate line 2 simultaneously, made conducting pin 11 and gate line 2 pass through conductive supporting thing conducting 4, thereby produced electric current.Through the time that electric current produces, the addressing chip calculates the line number of the gate line 2 that produces electric current according to gate waveform, thereby confirms the position of gate line 2 these directions; The addressed line 1 vertical with gate line 2, the position that directly produces according to electric current is confirmed to get final product.The horizontal ordinate of having confirmed the touch point respectively and the ordinate of gate line 2 and addressed line 1 equivalence are so confirmed the position of touch point on display screen.
So; The liquid crystal touch screen that the embodiment of the invention provides; Only on array base palte, increased the addressed line 1 of a direction and coupled conducting pin 11, and matched, realized the touch function of display screen with original gate line 2; Touch device for addressing and need not one of extra increase, so solved too complicated technology problem of existing liquid crystal touch screen structure.In addition, because the simplification of structure reduces the interlayer structure of liquid crystal touch screen, volume is littler, has realized the lightening of liquid crystal touch screen, saves cost more; Make that also manufacturing process is simpler, need on array base palte, not increase technology, just can accomplish through the 4mask technology of routine; And saved horizontal addressed line, thereby improved the aperture opening ratio of entire display screen, reduced the cost and the power consumption of backlight.
In the embodiment of the invention, conductive supporting thing 4 is specially, and surface coverage has the stilt 41 of conductive layer 5.On color membrane substrates, form in the conventional main stilt, forms and somely on these stilts 41, cover one deck conductive layer 5 again than the lower stilt 41 of main stilt, the stilt that the formation outside surface has electric conductivity, promptly the conductive supporting thing 4.As a preferred version, conductive layer 5 is indium tin oxide (ITO).
In the embodiment of the invention, addressed line 1 and coupled conducting pin 11 are integral structure.Because conducting pin 11 is as addressed line 1 an extended part, conducting pin 11 can form with addressed line 1 in 4mask technology synchronously.
As a preferred version, the liquid crystal touch screen that the embodiment of the invention provides is that fringing field switches (FFS) LCDs or twisted nematic (TN) LCDs.
Embodiment 2:
Present embodiment and embodiment 1 are basic identical, and its difference is: like Fig. 3 and shown in Figure 4, in the present embodiment, be coated with insulation course 6 on the conducting pin 11; Insulation course 6 is provided with via hole, and is coated with conductive layer 5, and conductive layer 5 links to each other with conducting pin 11 through via hole; When liquid crystal touch screen was pressed, conductive supporting thing 4 contacted with conductive layer 5.Also be coated with insulation course 6 on the gate line 2; On gate line 2, be provided with via hole with the insulation course 6 of each conducting pin 11 corresponding position, and be coated with conductive layer 5, conductive layer 5 links to each other with gate line 2 through via hole; When liquid crystal touch screen was pressed, conductive supporting thing 4 contacted with conductive layer 5.As a preferred version, conductive layer 5 is indium tin oxide (ITO).
On array base palte, have an insulation course 6 usually, gate line 2 and conducting pin 11 are covered,, can pass through ITO and 4 conductings of conductive supporting thing so, make gate line 2 and conducting pin 11 when display screen is touched with the mode of via hole and ITO overlap joint.
The embodiment of the invention also provides a kind of manufacturing approach of liquid crystal touch screen.
Embodiment 3:
The manufacturing approach of the liquid crystal touch screen that the embodiment of the invention provides comprises:
Sx: on array base palte, form the addressed line vertical with gate line, and the conducting pin that links to each other with addressed line.
Concrete, addressed line and conducting pin can form with data line in 4mask technology synchronously.
Also comprise:
Sy: form the conductive supporting thing.
Concrete; On color membrane substrates, form in conventional main stilt and time stilt, forms and somely hang down the stilt of some, on these stilts, cover one deck conductive layer again than main stilt; Form the stilt that outside surface has electric conductivity, i.e. the conductive supporting thing.As a preferred version, conductive layer is ITO.
Wherein, the conductive supporting thing among the Sy is used for, and when liquid crystal touch screen was pressed, the conducting pin among the Sx formed with gate line through the conductive supporting thing and is electrically connected.Because Sx and Sy carry out on array base palte and color membrane substrates respectively,, can certainly carry out simultaneously so the order of Sx and Sy is not fixed.
With above-mentioned array base palte and color membrane substrates to box; Process after the liquid crystal touch screen, when display screen was touched, main stilt was compressed; The conductive supporting thing is pressed downward; The conductive supporting thing will contact with conducting pin and gate line simultaneously, makes conducting pin and gate line through the conducting of conductive supporting thing, thereby produces electric current.Through the time that electric current produces, the addressing chip calculates the line number of the gate line that produces electric current according to gate waveform, thereby confirms the position of this direction of gate line; The addressed line vertical with gate line, the position that directly produces according to electric current is confirmed to get final product.The horizontal ordinate of having confirmed the touch point respectively and the ordinate of gate line and addressed line equivalence are so confirmed the position of touch point on display screen.
So; The liquid crystal touch screen that the embodiment of the invention provides; Only on array base palte, increased the addressed line of a direction and coupled conducting pin, and matched, realized the touch function of display screen with original gate line; Touch device for addressing and need not one of extra increase, so solved too complicated technology problem of existing liquid crystal touch screen structure.In addition, because the simplification of structure reduces the interlayer structure of liquid crystal touch screen, volume is littler, has realized the lightening of liquid crystal touch screen, saves cost more; Make that also manufacturing process is simpler, need on array base palte, not increase technology, just can accomplish through the 4mask technology of routine; And saved horizontal addressed line, thereby improved the aperture opening ratio of entire display screen, reduced the cost and the power consumption of backlight.
Because the embodiment of the invention has identical technical characterictic with the liquid crystal touch screen that the invention described above embodiment is provided, so also can produce identical technique effect, solves identical technical matters.
As shown in Figure 5, in the embodiment of the invention, on array base palte, form the addressed line vertical, and after the conducting pin that links to each other with addressed line, also comprise with gate line:
Sx1: on gate line and conducting pin, form insulation course;
Sx2: the insulation course at conducting pin place, and on the gate line with the insulation course of conducting pin corresponding position, form via hole;
Sx3: on insulation course, form conductive layer.
When insulation course covered gate line and conducting pin, the mode with via hole and ITO overlap joint made gate line and conducting pin when display screen is touched, and can pass through ITO and the conducting of conductive supporting thing.
In the embodiment of the invention, form the conductive supporting thing, be specially:
Sy1: on color membrane substrates, form stilt;
Specifically, on color membrane substrates, form in conventional main stilt and time stilt, form some stilts that hang down some than main stilt.
Sy2: on stilt, form conductive layer.
Concrete, utilize ITO on these stilts, to cover one deck conductive layer again, form the stilt that outside surface has electric conductivity, i.e. the conductive supporting thing.
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technician who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (10)
1. liquid crystal touch screen is characterized in that: comprise gate line, and the addressed line vertical with said gate line;
Be provided with the conducting pin that links to each other with said addressed line in the said addressed line and the intersection of said gate line, said conducting pin and said gate line are interruption-like;
Further be provided with the conductive supporting thing in the liquid crystal touch screen, when said liquid crystal touch screen was pressed, said conductive supporting thing formed with said gate line and said conducting pin simultaneously and is electrically connected; When said liquid crystal touch screen was not pressed, said conductive supporting thing did not form with said gate line or said conducting pin and is electrically connected.
2. liquid crystal touch screen according to claim 1 is characterized in that: be coated with insulation course on the said conducting pin;
Said insulation course is provided with via hole, and is coated with conductive layer, and said conductive layer links to each other with said conducting pin through said via hole;
When said liquid crystal touch screen was pressed, said conductive supporting thing contacted with said conductive layer.
3. liquid crystal touch screen according to claim 1 is characterized in that: be coated with insulation course on the said gate line;
On said gate line, be provided with via hole with the said insulation course of each said conducting pin corresponding position, and be coated with conductive layer, said conductive layer links to each other with said gate line through said via hole;
When said liquid crystal touch screen was pressed, said conductive supporting thing contacted with said conductive layer.
4. liquid crystal touch screen according to claim 1 is characterized in that: said conductive supporting thing is specially, and surface coverage has the stilt of conductive layer.
5. according to each described liquid crystal touch screen of claim 2 to 4, it is characterized in that: said conductive layer is an indium tin oxide.
6. liquid crystal touch screen according to claim 1 is characterized in that: comprise the data line vertical with said gate line, said addressed line is arranged at data line one side.
7. liquid crystal touch screen according to claim 1 is characterized in that: said addressed line and coupled conducting pin are integral structure.
8. the manufacturing approach of a liquid crystal touch screen is characterized in that, comprising:
On array base palte, form the addressed line vertical with gate line, and the conducting pin that links to each other with said addressed line;
Also comprise: form the conductive supporting thing;
Wherein, said conductive supporting thing is used for when said liquid crystal touch screen is pressed, and said conducting pin forms with said gate line through said conductive supporting thing and is electrically connected.
9. manufacturing approach according to claim 8 is characterized in that: saidly on array base palte, form the addressed line vertical with gate line, and the conducting pin that links to each other with said addressed line, also comprise:
On said gate line and said conducting pin, form insulation course;
Said insulation course at said conducting pin place, and on the said gate line with the said insulation course of said conducting pin corresponding position, form via hole;
On said insulation course, form conductive layer.
10. manufacturing approach according to claim 8 is characterized in that: said formation conductive supporting thing is specially:
On color membrane substrates, form stilt;
On above support, form conductive layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102374481A CN102650914A (en) | 2011-08-18 | 2011-08-18 | Liquid crystal touch screen and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102374481A CN102650914A (en) | 2011-08-18 | 2011-08-18 | Liquid crystal touch screen and manufacturing method thereof |
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| CN102650914A true CN102650914A (en) | 2012-08-29 |
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| CN2011102374481A Pending CN102650914A (en) | 2011-08-18 | 2011-08-18 | Liquid crystal touch screen and manufacturing method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558946A (en) * | 2013-11-15 | 2014-02-05 | 京东方科技集团股份有限公司 | Touch-control structure, LCD panel and display device |
| CN105045425A (en) * | 2015-08-10 | 2015-11-11 | 京东方科技集团股份有限公司 | Touch display panel, driving method thereof, and touch display apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101510137A (en) * | 2009-03-03 | 2009-08-19 | 友达光电股份有限公司 | Display device and touch control detecting method |
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2011
- 2011-08-18 CN CN2011102374481A patent/CN102650914A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101510137A (en) * | 2009-03-03 | 2009-08-19 | 友达光电股份有限公司 | Display device and touch control detecting method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558946A (en) * | 2013-11-15 | 2014-02-05 | 京东方科技集团股份有限公司 | Touch-control structure, LCD panel and display device |
| WO2015070596A1 (en) * | 2013-11-15 | 2015-05-21 | 京东方科技集团股份有限公司 | Touch structure, liquid crystal display panel, and display apparatus |
| US9678377B2 (en) | 2013-11-15 | 2017-06-13 | Boe Technology Group Co., Ltd. | Touch structure, LCD panel and display device |
| CN105045425A (en) * | 2015-08-10 | 2015-11-11 | 京东方科技集团股份有限公司 | Touch display panel, driving method thereof, and touch display apparatus |
| WO2017024769A1 (en) * | 2015-08-10 | 2017-02-16 | 京东方科技集团股份有限公司 | Touch display panel, driving method thereof, and touch display device |
| US10310646B2 (en) | 2015-08-10 | 2019-06-04 | Boe Technology Group Co., Ltd. | Touch display panel, touching display device having reduced signal interferences and driving method thereof |
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Application publication date: 20120829 |