CN103105988B - Capacitive touch screen, the manufacture method of touch control display apparatus and capacitive touch screen - Google Patents
Capacitive touch screen, the manufacture method of touch control display apparatus and capacitive touch screen Download PDFInfo
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Abstract
The invention discloses a kind of capacitive touch screen, the manufacture method of touch control display apparatus and capacitive touch screen; Capacitive touch screen comprises substrate, and described substrate is provided with: m row electrode, and each described row electrode has × 1 column distribution H-shaped blank space capable in n; M × n H-shaped column electrode, each described H-shaped column electrode is nested in H-shaped blank space and insulate between described H-shaped column electrode and described row electrode, and the H-shaped column electrode being positioned at same a line is connected in series; Wherein, m and n be greater than 1 natural number.Touch control display apparatus comprises above-mentioned capacitive touch screen.Invention increases the touch-control sensitivity at capacitive touch screen and touch control display apparatus edge, provide the method manufacturing capacitive touch screen.
Description
Technical field
The present invention relates to touch-screen field, particularly a kind of capacitive touch screen, the manufacture method of touch control display apparatus and capacitive touch screen.
Background technology
Touch-screen is a kind of touch sensing input media be widely used now.According to touch sensible principle, existing touch-screen comprises resistive touch screen, capacitive touch screen, surperficial infrared touch panel etc.Wherein, resistive touch screen because its low cost, easily realize, to control the advantage such as simple for many years popular.Recently, capacitive touch screen long with high, wear-resistant, the resistance to variation of ambient temperature of its transmittance, the change of resistance to ambient humidity, life-span, the senior sophisticated functions as multiple point touching can be realized and be welcomed by the general public.
Utilize capacitance variations long-standing as sensing principle.For making touch-screen effectively work, need the capacitive array sensor that transparent.During when human body or as induction electrode close to electric capacity of the special touching device of writing pencil, the size of the capacitance that sensing control circuit detects can be changed, according to the distribution of capacitance variation in touch area, human body or the special touching device touch situation in touch area just can be judged.
Typical capacitive touch screen comprises substrate, the homonymy of substrate is provided with one deck or two-layer transparency conducting layer, or be respectively arranged with layer of transparent conductive layer in the both sides of substrate, transparency conducting layer also can be called as electrically conducting transparent glue-line, its material is to be generally tin indium oxide (IndiumTinOxide, referred to as ITO).Fig. 1 is the schematic diagram that the existing homonymy at substrate is provided with the capacitive touch screen of layer of transparent conductive layer, Fig. 2 is the partial enlarged drawing of capacitive touch screen shown in Fig. 1, wherein, as depicted in figs. 1 and 2, transparency conducting layer comprises the rhombus induction electrode 100 ' of multiple one, the rhombus drive electrode 200 ' of multiple separation, the rhombus drive electrode 200 ' being positioned at same a line is connected mutually, mutually insulated between rhombus drive electrode 200 ' and rhombus induction electrode 100 '.Like this, the raceway groove 300 ' between adjacent rhombus drive electrode 200 ' and rhombus induction electrode 100 ' is located to form coupling capacitance.Generally, the area of finger is greater than rhombus area.As shown in Figure 1, when finger touch capacitive touch screen be positioned at the α ' region at center time, the touch-control area of finger is greater than a rhombus area; And when finger touch capacitive touch screen be positioned at the β ' region at edge time, because β ' region is positioned at the edge of capacitive touch screen, the touch-control area of finger is half rhombus area, make finger when the β ' region of touch control capacitance formula touch-screen like this, it is little that the thoughts and feelings capacity ratio that finger produces points the thoughts and feelings electric capacity produced when the α ' region of touch control capacitance formula touch-screen, easily cause touching signals distortion, thus cause the edge touch-control sensitivity of capacitive touch screen lower.
Summary of the invention
The invention provides a kind of capacitive touch screen, the manufacture method of touch control display apparatus and capacitive touch screen, improve the touch-control sensitivity at capacitive touch screen and touch control display apparatus edge, provide the method manufacturing capacitive touch screen.
For achieving the above object, the invention provides following technical scheme:
A kind of capacitive touch screen, comprises substrate, described substrate is provided with:
M row electrode, each described row electrode has × 1 column distribution H-shaped blank space capable in n;
M × n H-shaped column electrode, each described H-shaped column electrode is nested in H-shaped blank space and insulate between described H-shaped column electrode and described row electrode, and the H-shaped column electrode being positioned at same a line is connected in series;
Wherein, m and n be greater than 1 natural number.
Preferably, between the adjacent H-shaped column electrode of same a line, be overlapped with metal bridge, the H-shaped column electrode in same a line is connected in series and insulate between metal bridge and its row electrode put up by described metal bridge.
Preferably, have the first via hole in each described H-shaped column electrode, described first via hole has the first wedge angle;
Described H-shaped column electrode and and its be overlapped with point discharge device at same row between adjacent lines H-shaped column electrode, one end of described point discharge device has the first most advanced and sophisticated wedge angle;
First most advanced and sophisticated wedge angle of described point discharge device and and its overlap joint a H-shaped column electrode the first diagonal angle, wedge angle angle and put and insulate between the first most advanced and sophisticated wedge angle and the first wedge angle, the other end of described point discharge device and connecting with another H-shaped column electrode of its overlap joint;
Insulate between described point discharge device and its row electrode put up.
Preferably, have the second via hole in described row electrode, described second via hole has the second wedge angle, and described point discharge device also has the second most advanced and sophisticated wedge angle;
Second most advanced and sophisticated wedge angle of described point discharge device and the second diagonal angle, wedge angle angle of row electrode of putting up with it and put.
Preferably, described point discharge device is the point discharge device of local hollow out.
Preferably, described H-shaped column electrode is transparent drive electrode, and described H-shaped column electrode and metal bridge form transparent drive electrode line; Described row electrode is transparent exploring electrode.
The present invention also provides following technical scheme:
A kind of touch control display apparatus, comprises the capacitive touch screen described in above-mentioned any one.
The invention provides following technical scheme:
A manufacture method for capacitive touch screen, comprises the following steps:
Substrate is formed m row electrode, and each described row electrode has × 1 column distribution H-shaped blank space capable in n;
Formation is nested in the H-shaped column electrode of each H-shaped blank space and insulate between H-shaped column electrode and row electrode;
The H-shaped column electrode being positioned at same a line is connected in series;
Wherein, m and n be greater than 1 natural number.
Preferably, described being connected in series by the H-shaped column electrode being positioned at same a line comprises the following steps:
Between the adjacent H-shaped column electrode of same row, overlapping metal bridge, the H-shaped column electrode being positioned at same a line is connected in series by described metal bridge;
Between the row electrode that described metal bridge and its are put up, form insulation course make to insulate between metal bridge and its row electrode put up.
Preferably, further comprising the steps of:
H-shaped column electrode and and its overlap point discharge device at same row between adjacent lines H-shaped column electrode, make first of point discharge device the most advanced and sophisticated wedge angle and put with the first diagonal angle, wedge angle angle of a H-shaped column electrode of its overlap joint, the other end of point discharge device and connecting with another H-shaped column electrode of its overlap joint;
Between the row electrode that described point discharge device and its are put up, form insulation course make insulation between point discharge device and its row electrode put up and make to insulate between the first most advanced and sophisticated wedge angle and the first wedge angle;
Wherein, have the first via hole in each described H-shaped column electrode, described first via hole has the first wedge angle, and one end of described point discharge device has the first most advanced and sophisticated wedge angle.
Preferably, further comprising the steps of:
Make second of point discharge device the most advanced and sophisticated wedge angle and the second diagonal angle, wedge angle angle of row electrode of putting up with it and put;
Wherein, have the second via hole in described row electrode, described second via hole has the second wedge angle, and described point discharge device also has the second most advanced and sophisticated wedge angle.
Capacitive touch screen provided by the invention, the manufacture method of touch control display apparatus and capacitive touch screen, capacitive touch screen comprises the α region being positioned at capacitive touch screen center and the β region being positioned at capacitance touch platen edge; Due to shape and the distribution of row electrode and H-shaped column electrode, make when the α region of finger touch capacitive touch screen and β region, the touch-control area of finger does not have difference in the α region of capacitive touch screen and β region, namely point when the α region of touch control capacitance formula touch-screen and β region, the thoughts and feelings electric capacity produced does not have difference, improves the touch-control sensitivity of capacitance touch platen edge; And then improve the touch-control sensitivity at touch control display apparatus edge of the present invention, and provide the method manufacturing capacitive touch screen.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that the existing homonymy at substrate is provided with the capacitive touch screen of layer of transparent conductive layer;
Fig. 2 is the partial enlarged drawing of capacitive touch screen shown in Fig. 1;
Fig. 3 is the schematic diagram of a capacitive touch screen of the present invention embodiment;
Fig. 4 is the partial enlarged drawing of capacitive touch screen shown in Fig. 3;
Fig. 5 is the process flow diagram of the manufacture method of capacitive touch screen shown in Fig. 3;
The A-A cut-open view that Fig. 6 is capacitive touch screen shown in Fig. 4;
Partial enlarged drawing in the dotted line frame that Fig. 7 is capacitive touch screen shown in Fig. 4;
The B-B cut-open view that Fig. 8 is capacitive touch screen shown in Fig. 7;
Fig. 9 is the partial enlarged drawing of another embodiment of capacitive touch screen of the present invention;
Figure 10-Figure 17 is the schematic diagram of the point discharge device of capacitive touch screen of the present invention.
Main element description of reference numerals:
Prior art:
100 ' rhombus induction electrode, 200 ' rhombus drive electrode, 300 ' raceway groove;
The present invention:
100 row electrodes, 110 second via holes, 111 second wedge angles,
200H shape column electrode, 210 first via holes, 211 first wedge angles,
300 raceway grooves, 400 metal bridge,
500 point discharge devices, 510 first most advanced and sophisticated wedge angles, 520 second most advanced and sophisticated wedge angles
600 insulation courses.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The capacitive touch screen of first embodiment of the present invention, as shown in Figure 3 and Figure 4, comprises substrate, and described substrate is provided with:
M row electrode 100, each described row electrode 100 has × 1 column distribution H-shaped blank space capable in n;
M × n H-shaped column electrode 200, each described H-shaped column electrode 200 is nested in H-shaped blank space and insulate between described H-shaped column electrode 200 and described row electrode 100, and the H-shaped column electrode 200 being positioned at same a line is connected in series;
Wherein, m and n be greater than 1 natural number.
The capacitive touch screen of the present embodiment, as shown in Figure 3, comprises the α region being positioned at capacitive touch screen center and the β region being positioned at capacitance touch platen edge; Due to shape and the distribution of row electrode and H-shaped column electrode, make when the α region of finger touch capacitive touch screen and β region, the touch-control area of finger does not have difference in the α region of capacitive touch screen and β region, namely point when the α region of touch control capacitance formula touch-screen and β region, the thoughts and feelings electric capacity produced does not have difference, improves the touch-control sensitivity of capacitance touch platen edge.
Identical with thickness with the rhombus drive electrode area of existing capacitive touch screen at the H-shaped column electrode of the capacitive touch screen of the present embodiment, and when row electrode is identical with rhombus induction electrode thickness:
As shown in Figure 4, the length of the raceway groove 300 ' between the rhombus drive electrode of existing capacitive touch screen and rhombus induction electrode as shown in Figure 2 for the length of the raceway groove 300 between the H-shaped column electrode of the capacitive touch screen of the present embodiment and row electrode.The length of the raceway groove 300 between the H-shaped column electrode of the capacitive touch screen of the present embodiment and row electrode is greater than the length of the raceway groove 300 ' between the rhombus drive electrode of existing capacitive touch screen and rhombus induction electrode, and the coupling capacitance that raceway groove 300 place namely between the H-shaped column electrode of the capacitive touch screen of the present embodiment and row electrode is formed is larger.Existing capacitive touch screen, coupling capacitance between rhombus drive electrode and rhombus induction electrode is less, when water droplet is dropped in existing capacitive touch screen, the thoughts and feelings electric capacity that water droplet produces is larger on existing capacitive touch screen impact, can cause when there being water droplet to drip like this, existing capacitive touch screen can think that touch-control occurs by mistake, and water proofing property is poor.And coupling capacitance between the H-shaped column electrode of the capacitive touch screen of the present embodiment and row electrode is larger, when water droplet is dropped in the capacitive touch screen of the present embodiment, the capacitive touch screen impact of the thoughts and feelings electric capacity that water droplet produces on the present embodiment is less, like this when there being water droplet to drip, the capacitive touch screen of the present embodiment can not think that touch-control occurs by mistake, and water proofing property is better.
The manufacture method of the capacitive touch screen of the present embodiment, as shown in Figure 5, comprises the following steps:
Substrate is formed m row electrode, and each described row electrode has × 1 column distribution H-shaped blank space capable in n;
Formation is nested in the H-shaped column electrode of each H-shaped blank space and insulate between H-shaped column electrode and row electrode;
The H-shaped column electrode being positioned at same a line is connected in series;
Wherein, m and n be greater than 1 natural number.
As second embodiment of the present invention, the present embodiment, on the basis of first embodiment, is set forth further to capacitive touch screen:
As shown in Fig. 3, Fig. 4 and Fig. 6, between the adjacent H-shaped column electrode 200 of same a line, be overlapped with metal bridge 400, the H-shaped column electrode 200 in same a line is connected in series and insulate between metal bridge 400 and its row electrode 100 put up by described metal bridge 400.
Further, as shown in Figure 6, insulation course 600 is provided with between metal bridge 400 and its row electrode 100 put up to realize insulation between the two.
The capacitive touch screen of the present embodiment, metal bridge to be overlapped between the adjacent H-shaped column electrode of same a line and and insulate between its row electrode put up, also form coupling capacitance between such metal bridge and row electrode, be equivalent to further increase the coupling capacitance between H-shaped column electrode and row electrode.
The manufacture method of the capacitive touch screen of the present embodiment, is with the difference of the manufacture method of the capacitive touch screen of first embodiment, describedly the step that the H-shaped column electrode being positioned at same a line is connected in series specifically is comprised the following steps:
Between the adjacent H-shaped column electrode of same row, overlapping metal bridge, the H-shaped column electrode being positioned at same a line is connected in series by described metal bridge;
Between the row electrode that described metal bridge and its are put up, form insulation course make to insulate between metal bridge and its row electrode put up.
As the 3rd embodiment of the present invention, the present embodiment, on the basis of second embodiment, is set forth further to capacitive touch screen:
As shown in Fig. 3, Fig. 4, Fig. 7 and Fig. 8, have the first via hole 210 in each described H-shaped column electrode, described first via hole 210 has the first wedge angle 211;
Described H-shaped column electrode 200 and and its be overlapped with point discharge device 500 at same row between adjacent lines H-shaped column electrode, one end of described point discharge device has the first most advanced and sophisticated wedge angle 510;
First most advanced and sophisticated wedge angle 510 of described point discharge device and and its overlap joint a H-shaped column electrode the first wedge angle 211 jiaos of diagonal angles and put and insulate between 211 of the first most advanced and sophisticated wedge angle 510 and the first wedge angle, the other end of described point discharge device and connecting with another H-shaped column electrode of its overlap joint;
Insulate between described point discharge device 500 and its row electrode 100 put up.
Further, as shown in Figure 8, insulation course 600 is provided with between described point discharge device 500 and its row electrode 100 put up to realize insulation between the two.
The manufacture method of the capacitive touch screen of the present embodiment, is with the difference of the manufacture method of the capacitive touch screen of second embodiment, further comprising the steps of:
H-shaped column electrode and and its overlap point discharge device at same row between adjacent lines H-shaped column electrode, make first of point discharge device the most advanced and sophisticated wedge angle and put with the first diagonal angle, wedge angle angle of a H-shaped column electrode of its overlap joint, the other end of point discharge device and connecting with another H-shaped column electrode of its overlap joint;
Between the row electrode that described point discharge device and its are put up, form insulation course make insulation between point discharge device and its row electrode put up and make to insulate between the first most advanced and sophisticated wedge angle and the first wedge angle;
Wherein, have the first via hole in each described H-shaped column electrode, described first via hole has the first wedge angle, and one end of described point discharge device has the first most advanced and sophisticated wedge angle.
As the 4th embodiment of the present invention, the present embodiment, on the basis of the 3rd embodiment, is further elaborated capacitive touch screen:
As shown in Figure 9, have the second via hole 110 in described row electrode, described second via hole has the second wedge angle 111, and described point discharge device 500 also has the second most advanced and sophisticated wedge angle 520;
Second most advanced and sophisticated wedge angle 520 of described point discharge device and the second wedge angle 111 jiaos of diagonal angles of row electrode of putting up with it and put.
The manufacture method of the capacitive touch screen of the present embodiment, is with the difference of the manufacture method of the capacitive touch screen of the 3rd embodiment, further comprising the steps of:
Make second of point discharge device the most advanced and sophisticated wedge angle and the second diagonal angle, wedge angle angle of row electrode of putting up with it and put;
Wherein, have the second via hole in described row electrode, described second via hole has the second wedge angle, and described point discharge device also has the second most advanced and sophisticated wedge angle.
As the 5th embodiment of the present invention, the present embodiment, on the basis of the 3rd and the 4th embodiment, is further elaborated point discharge device:
As shown in Figure 10 to Figure 17, described point discharge device is the point discharge device of local hollow out.The point discharge device of local hollow out can accelerate the speed of Electro-static Driven Comb.
It should be noted that, the form of point discharge device of local hollow out be not limited to limit in the present embodiment this is a kind of, fix as long as can realize pressing plate and locate, this place just illustrates.
As the 6th embodiment of the present invention, the present embodiment, on the basis of any one embodiment above-mentioned, is further elaborated capacitive touch screen:
Described H-shaped column electrode is transparent drive electrode, and described H-shaped column electrode and metal bridge form transparent drive electrode line; Described row electrode is transparent exploring electrode.
The touch control display apparatus of first embodiment of the present invention, comprises the capacitive touch screen described in any one embodiment above-mentioned.The touch control display apparatus of the present embodiment improves the touch-control sensitivity at touch control display apparatus edge
Obviously, those skilled in the art can carry out various change and modification to the embodiment of the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (9)
1. a capacitive touch screen, comprises substrate, it is characterized in that, described substrate is provided with:
M row electrode, each described row electrode has × 1 column distribution H-shaped blank space capable in n;
M × n H-shaped column electrode, each described H-shaped column electrode is nested in one of them H-shaped blank space and insulate between described H-shaped column electrode and described row electrode, and the H-shaped column electrode being positioned at same a line is connected in series;
Wherein, m and n be greater than 1 natural number;
Have the first via hole in each described H-shaped column electrode, described first via hole has the first wedge angle;
Described H-shaped column electrode and and its be overlapped with point discharge device at same row between adjacent lines H-shaped column electrode, one end of described point discharge device has the first most advanced and sophisticated wedge angle;
First most advanced and sophisticated wedge angle of described point discharge device and and its overlap joint a H-shaped column electrode the first diagonal angle, wedge angle angle and put and insulate between the first most advanced and sophisticated wedge angle and the first wedge angle, the other end of described point discharge device and connecting with another H-shaped column electrode of its overlap joint;
Insulate between described point discharge device and its row electrode put up.
2. capacitive touch screen according to claim 1, it is characterized in that, between the adjacent H-shaped column electrode of same a line, be overlapped with metal bridge, the H-shaped column electrode in same a line is connected in series and insulate between metal bridge and its row electrode put up by described metal bridge;
Insulation course is provided with between described point discharge device and its row electrode put up.
3. capacitive touch screen according to claim 2, is characterized in that, has the second via hole in described row electrode, and described second via hole has the second wedge angle, and described point discharge device also has the second most advanced and sophisticated wedge angle;
Second most advanced and sophisticated wedge angle of described point discharge device and the second diagonal angle, wedge angle angle of row electrode of putting up with it and put.
4. capacitive touch screen according to claim 3, is characterized in that, described point discharge device is the point discharge device of local hollow out.
5. capacitive touch screen according to any one of claim 1 to 3, is characterized in that, described H-shaped column electrode is transparent drive electrode, and described H-shaped column electrode and metal bridge form transparent drive electrode line; Described row electrode is transparent exploring electrode.
6. a touch control display apparatus, is characterized in that, comprises the capacitive touch screen according to any one of claim 1 to 5.
7. a manufacture method for capacitive touch screen, is characterized in that, comprises the following steps:
Substrate is formed m row electrode, and each described row electrode has × 1 column distribution H-shaped blank space capable in n;
Formation is nested in the H-shaped column electrode of each H-shaped blank space and insulate between H-shaped column electrode and row electrode;
The H-shaped column electrode being positioned at same a line is connected in series;
Wherein, m and n be greater than 1 natural number;
H-shaped column electrode and and its overlap point discharge device at same row between adjacent lines H-shaped column electrode, make first of point discharge device the most advanced and sophisticated wedge angle and put with the first diagonal angle, wedge angle angle of a H-shaped column electrode of its overlap joint, the other end of point discharge device and connecting with another H-shaped column electrode of its overlap joint;
Between the row electrode that described point discharge device and its are put up, form insulation course make insulation between point discharge device and its row electrode put up and make to insulate between the first most advanced and sophisticated wedge angle and the first wedge angle;
Wherein, have the first via hole in each described H-shaped column electrode, described first via hole has the first wedge angle, and one end of described point discharge device has the first most advanced and sophisticated wedge angle.
8. the manufacture method of capacitive touch screen according to claim 7, is characterized in that, described being connected in series by the H-shaped column electrode being positioned at same a line comprises the following steps:
Between the adjacent H-shaped column electrode of same row, overlapping metal bridge, the H-shaped column electrode being positioned at same a line is connected in series by described metal bridge;
Between the row electrode that described metal bridge and its are put up, form insulation course make to insulate between metal bridge and its row electrode put up.
9. the manufacture method of capacitive touch screen according to claim 8, is characterized in that, further comprising the steps of:
Make second of point discharge device the most advanced and sophisticated wedge angle and the second diagonal angle, wedge angle angle of row electrode of putting up with it and put;
Wherein, have the second via hole in described row electrode, described second via hole has the second wedge angle, and described point discharge device also has the second most advanced and sophisticated wedge angle.
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| CN104932765A (en) * | 2015-07-03 | 2015-09-23 | 合肥鑫晟光电科技有限公司 | Capacitive touch screen and preparation method thereof and touch device |
| CN109840036B (en) * | 2019-02-28 | 2020-09-01 | 武汉华星光电半导体显示技术有限公司 | Touch substrate and display device |
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| CN102819375A (en) * | 2012-09-14 | 2012-12-12 | 常州裕成光电有限公司 | Capacitive touch screen |
| CN202615359U (en) * | 2011-07-26 | 2012-12-19 | 比亚迪股份有限公司 | Touch detection module and touch control device and portable electronic equipment |
| CN203054805U (en) * | 2013-01-22 | 2013-07-10 | 北京京东方光电科技有限公司 | Capacitor-type touch screen and touch control display device |
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| CN101847066A (en) * | 2009-03-25 | 2010-09-29 | 友达光电股份有限公司 | Mutual capacitance type touch control display device |
| CN202615359U (en) * | 2011-07-26 | 2012-12-19 | 比亚迪股份有限公司 | Touch detection module and touch control device and portable electronic equipment |
| CN102819375A (en) * | 2012-09-14 | 2012-12-12 | 常州裕成光电有限公司 | Capacitive touch screen |
| CN203054805U (en) * | 2013-01-22 | 2013-07-10 | 北京京东方光电科技有限公司 | Capacitor-type touch screen and touch control display device |
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