CN203480465U - Touch screen and display device. - Google Patents
Touch screen and display device. Download PDFInfo
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- CN203480465U CN203480465U CN201320539893.8U CN201320539893U CN203480465U CN 203480465 U CN203480465 U CN 203480465U CN 201320539893 U CN201320539893 U CN 201320539893U CN 203480465 U CN203480465 U CN 203480465U
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Abstract
The utility model discloses a touch screen and a display device. The touch screen comprises a substrate, and a touch control electrode layer, an insulating layer, a bridge layer and peripheral routing which are sequentially stacked on the substrate. The patterns of the bridge layer and the peripheral routing are formed through one-step pattern composition. The touch screen has the advantages that the one-step pattern composition is used to simultaneously form the patterns of the bridge layer and the peripheral routing, pattern composition times during manufacturing are reduced, the manufacturing efficiency of the touch screen is increased, and production cost is lowered.
Description
Technical field
The utility model relates to touch technology field, relates in particular to a kind of touch-screen and display device.
Background technology
Along with the develop rapidly of display technique, touch-screen (Touch Screen Panel) spreads all in people's life gradually.At present, touch-screen can be divided into according to principle of work: resistance-type, condenser type, infrared-type and surface acoustic wave type, electromagnetic type, ripple induction type and frustrated total internal reflection optical induction type etc. shake.Wherein, capacitive touch screen, with its unique touch-control principle, relies on the advantages such as high sensitivity, long-life, high transmission rate, is pursued in the industry as new lover.
Application is at present one chip (OGS more widely, One Glass Solution) touch module, on substrate, directly to form touch-control conducting film and the sensor of individual layer, as shown in Fig. 1 a and Fig. 1 b, the concrete structure of OGS touch module comprises: the shielding layer (Blackmatrix being cascading on substrate 101, be called for short BM) 102, bridge layer (Bridge) 103, insulation course (Overcoat is called for short OC) 104, touch control electrode layer 105, periphery cabling 106 and passivation layer 107; Wherein, touch control electrode layer 105 specifically comprises and intersects and put and touch-control sensing electrode 1051 and the touch-control drive electrode 1052 of mutually insulated, touch-control sensing electrode 1051 and touch-control drive electrode 1052 are argyle design, touch-control drive electrode 1052 adjacent and that mutually disconnect is by bridge layer 103 bridge joints, touch-control sensing electrode 1051 is connected with corresponding periphery cabling 106 with the non-display area of touch-control drive electrode 1052 in touch module, and periphery cabling 106 can be transferred to corresponding IC chip by the signal on touch control electrode layer 105 and carry out analyzing and processing.
The OGS touch module of said structure needs to adopt six road mask plates (Mask) to carry out composition in the preparation: first Mask forms the figure of shielding layer 102, second Mask forms the figure of bridge layer 103, San road Mask forms the figure of insulation course 104, Si road Mask forms the figure of touch control electrode layer 105, Wu road Mask forms the figure of the figure ， six road Mask formation passivation layers 107 of periphery cabling 106.Above-mentioned preparation technology mask plate quantity used is many, while using each mask plate will with substrate exactitude position, can reduce production efficiency, increased production cost.
Utility model content
The utility model embodiment provides a kind of touch-screen and display device, uses mask plate number of times more, the problem that production efficiency is low while manufacturing OGS touch module in order to solve in prior art.
A kind of touch-screen that the utility model embodiment provides, comprises a substrate, the touch control electrode layer being cascading on described substrate, insulation course, bridge layer and periphery routing layer; Wherein,
Described touch control electrode layer, insulation course and bridge layer are positioned at the touch area of described touch-screen; Described touch control electrode layer comprises with layer and arranges, intersects and put and touch-control sensing electrode and the touch-control drive electrode of mutually insulated; The described touch-control drive electrode that described bridge layer bridge joint is adjacent or adjacent described touch-control sensing electrode;
Described touch control electrode layer, insulation course, bridge layer and periphery cabling are positioned at the non-touch area of described touch-screen.
A kind of display device that the utility model embodiment provides, comprises the above-mentioned touch-screen that the utility model embodiment provides.
The beneficial effect of the utility model embodiment comprises:
A kind of touch-screen and display device that the utility model embodiment provides, this touch-screen comprises a substrate, the touch control electrode layer being cascading on described substrate, insulation course, bridge layer and periphery cabling, wherein bridge layer and periphery cabling form by a composition technique.Touch-screen of the present utility model completes the composition of bridge layer and periphery cabling in a composition technique simultaneously, has reduced composition number of times in manufacture process, has improved the manufacture efficiency of touch-screen, has reduced production cost.
Accompanying drawing explanation
Fig. 1 a is the schematic top plan view of OGS touch module of the prior art;
Fig. 1 b be in Fig. 1 a A-A to schematic cross-section;
The process flow diagram of the manufacture method of the touch-screen that Fig. 2 provides for the utility model embodiment;
Fig. 3 a forms the schematic cross-section after shielding layer on substrate in the utility model embodiment;
Fig. 3 b is the schematic cross-section after forming touch control electrode layer in the utility model embodiment;
Fig. 3 c is the schematic cross-section after forming insulation course in the utility model embodiment;
Fig. 3 d is forming the schematic cross-section after bridge layer and periphery cabling by a composition technique in the utility model embodiment;
Fig. 3 e is the schematic cross-section after forming passivation layer in the utility model embodiment;
Fig. 4 a-Fig. 4 e forms the schematic cross-section of each step of bridge layer and periphery cabling by composition technique in the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, the touch-screen that the utility model embodiment is provided and the embodiment of display device are described in detail.
In accompanying drawing, each layer film thickness and area size shape do not reflect true ratio, and object is signal explanation the utility model content just.
The method for making of a kind of touch-screen that the utility model embodiment provides, as shown in Figure 2, specifically comprises following step:
Step S101, on substrate 1, form the figure of touch control electrode layer 3, this touch control electrode layer 3 comprises and intersects and put and touch-control sensing electrode 31 and the touch-control drive electrode 32 of mutually insulated, as shown in Figure 3 b wherein, touch control electrode layer 3 has figure at touch area A and non-touch area B;
Step S102, on touch control electrode layer 3, form the figure of insulation course 4, as shown in Figure 3 c, wherein, insulation course 4 has figure at touch area A and non-touch area B;
Preferably, before execution step S102, can also comprise: on substrate 1, form the figure of shielding layer 2, as shown in Figure 3 a, wherein, shielding layer 2 only has figure at non-touch area B; Particularly, can first on substrate 1, form the figure of shielding layer 2, then on shielding layer 2, form the figure of touch control electrode layer 3.Also can first on substrate 1, form the figure of touch control electrode layer 3, then on touch control electrode layer 3, form the figure of shielding layer 2; And, can also adopt a composition technique (concrete masking process can adopt gray-tone mask or intermediate tone mask) to form to be positioned at the figure of the touch control electrode layer 3 of below and the shielding layer 2 of top simultaneously, at this, do not describe in detail, can reduce mask number of times like this, cost-saving; Further, directly the photoresist of use such as black-colored photosensitive resin, as shielding layer 2, has saved the technique of independent making shielding layer 2, has reduced production cost.
Step S103, on insulation course 4, by composition technique, form the figure of bridge layer 5 and periphery cabling 6, as shown in Figure 3 d, wherein, bridge layer 5 has figure at touch area A and non-touch area B; Periphery cabling 6 only has figure at non-touch area B, and corresponding to the region with shielding layer 3 figures, shielding layer 3 can cover the periphery lead-in wire (being periphery cabling 6) of touch-screen; The touch-control drive electrode 32 that bridge layer 5 bridge joints are adjacent or adjacent touch-control sensing electrode 31, the adjacent touch-control sensing electrode 31 of bridge layer 3 bridge joints of take in Fig. 3 d describes as example.Further, periphery cabling can be metal routing, and the resistance of metal is smaller, and conductive effect is better, is conducive to improve the touch-control sensitivity of touch-screen.
Further, in the said method that the utility model embodiment provides, as shown in Figure 2, can also comprise:
Step S104, on periphery cabling 6, form the figure of passivation layer 7, as shown in Figure 3 e, wherein, passivation layer 7 has figure at touch area A and non-touch area B.
The method for making of the above-mentioned touch-screen that the utility model embodiment provides completes the composition of bridge layer and periphery cabling in a composition technique simultaneously, with respect to needing to use six times composition technique in prior art, reduced composition number of times in manufacture process, the manufacture efficiency that has improved touch-screen, has reduced production cost.
In the following description of the utility model embodiment, in order to narrate conveniently, to the description of mask plate in step S101-S104, adopt the mode of the first mask plate, the second mask plate, the 3rd mask plate, the 4th mask plate and the 5th mask plate to describe.
Below above-mentioned steps S101-S104 is described in detail respectively.
On substrate 1, form the figure of shielding layer 2, specifically by following manner, realize:
First, on substrate 1, form the film of shielding layer 2; In the specific implementation, can adopt photoresist material to prepare shielding layer 2;
Then, use the first mask plate to carry out composition to the film of shielding layer 2, as shown in Figure 3 a, form the figure of shielding layer 2, it should be noted that the composition technique in all embodiment of the utility model all at least comprises coating photoresist, exposure imaging, etch process.It should be noted that the etch process in the utility model embodiment can be wet etching or dry carving technology.
Step S101, on shielding layer 2, form the figure of touch control electrode layer 3, by following manner, realize:
First, on shielding layer 2, form the film of touch control electrode layer 3;
Then, on the film of touch control electrode layer 3, apply photoresist, use the second mask plate to photoresist exposure imaging;
Finally, the film of etching touch control electrode layer 3, peels off photoresist, obtains the figure of touch control electrode layer 3, and as shown in Figure 3 b, wherein, touch control electrode layer 3 comprises and intersects and put and touch-control sensing electrode 31 and the touch-control drive electrode 32 of mutually insulated.
Step S102, after completing steps S101, on touch control electrode layer 3, form the figure of insulation course 4, by following manner, realize:
First, the film of depositing insulating layer 4 on touch control electrode layer 3;
Then, use the 3rd mask plate to carry out composition to the film of insulation course 4, form the figure of insulation course 4, as shown in Figure 3 c.
Step S103, after completing steps S102, on insulation course 4, by composition technique, form the figure of bridge layer 5 and periphery cabling 6, by following manner, realize:
First, on insulation course 4, form successively the film of bridge layer 5 and the film of periphery cabling 6, as shown in Fig. 4 a;
Then, on the film of periphery cabling 6, form photoresist 8, use 9 pairs of photoresist 8 exposure imagings of the 4th mask plate, as shown in Figure 4 b, obtain photoresist and remove region a, photoresist part reserve area b and the complete reserve area c of photoresist completely; In the specific implementation, the 4th mask plate 9 can be half-tone mask plate or gray mask plate, and what in Fig. 4 b, use is gray tone mask plate;
Wherein, photoresist part reserve area b is corresponding to the graphics field that forms bridge layer 5, and the complete reserve area c of photoresist is corresponding to the graphics field that forms periphery cabling 6;
Finally, photoresist is removed to region a, photoresist part reserve area b and the complete reserve area c of photoresist carries out respectively etching completely, form the figure of bridge layer 5 and periphery cabling 6.
Wherein, photoresist is removed to region a, photoresist part reserve area b and the complete reserve area c of photoresist carries out respectively etching completely, forms the process of the figure of bridge layer 5 and periphery cabling 6, specifically realize in the following manner:
First, adopt etch process to remove the film of bridge layer 5 and the film of periphery cabling 6 that photoresist is removed region a completely, obtain the figure of bridge layer 5, as shown in Fig. 4 c, the adjacent touch-control sensing electrode 61 that this bridge layer 5 is made in will the follow-up preparation technology of bridge joint;
Then, adopt cineration technics to get rid of the photoresist 8 of photoresist part reserve area b, the photoresist of the complete reserve area c of attenuate photoresist, as shown in Fig. 4 d;
Then, employing etch process removes the film of the periphery cabling 6 of photoresist part reserve area b, exposes the figure of bridge layer 5, as shown in Fig. 4 e;
Finally, the photoresist 8 of the complete reserve area c of stripping photoresist, obtains the figure of periphery cabling 6, as shown in Figure 3 d.
Preferably, in the specific implementation, the material of bridge layer 5 is transparent conductive material, for example, can be tin indium oxide (ITO), indium zinc oxide (IZO) material, carbon nano-tube or Graphene.Adopt ITO as the benefit of bridge layer 5, to be to improve the transmitance of touch-screen, and the less visual impact of reflected light to people that reduced of the relative metal pair reflection of light of ITO rate.
Certainly, bridge layer 5 also can adopt metal material preparation, at this, does not limit.And when bridge layer 5 and periphery cabling 6 all adopt metal material to prepare, bridge layer 5 and periphery cabling 6 can arrange with layer, can obtain by a masking process.
Step S104, after completing steps S103, on periphery cabling 6, form the figure of passivation layer 7, by following manner, realize:
First, the film of deposit passivation layer 7 on periphery cabling 6;
Then, use the 5th mask plate to carry out composition to the film of passivation layer 7, form the figure of passivation layer 7, as shown in Figure 3 e, passivation layer 7 can protect periphery cabling 6 by outside air, not to be oxidized.
Based on same utility model design, the touch-screen that the utility model embodiment also provides a kind of method for making that adopts above-mentioned touch-screen to prepare, as shown in Figure 3 e, this touch-screen specifically comprises: a substrate 1, the touch control electrode layer 3 being cascading on substrate 1, insulation course 4, bridge layer 5 and periphery cabling 6; Wherein,
Touch control electrode layer 3, insulation course 4 and bridge layer 5 are positioned at the touch area A of touch-screen; Touch control electrode layer 3 comprises with layer and arranges, intersects and put and touch-control sensing electrode 31 and the touch-control drive electrode 32 of mutually insulated; The touch-control drive electrode 32 that bridge layer 5 bridge joints are adjacent or adjacent touch-control sensing electrode 31, the adjacent touch-control sensing electrode 31 of bridge layer 5 bridge joints of take in Fig. 3 e describes as example;
Touch control electrode layer 3, insulation course 4, bridge layer 5 and periphery cabling 6 are positioned at the non-touch area B of touch-screen; From Fig. 3 e, can find out, 6 of periphery cablings are arranged on the non-touch area B of touch-screen.
Particularly, as shown in Figure 3 e, above-mentioned touch-screen can also comprise: be positioned at the non-touch area B of touch-screen, and the shielding layer 2 between touch control electrode layer 3 and substrate 1.Or shielding layer 2 can be between touch control electrode layer 3 and insulation course 4, and be positioned at the non-touch area B of touch-screen.
Particularly, as shown in Figure 3 e, above-mentioned touch-screen can also comprise: be positioned on periphery cabling 6, and cover the passivation layer 7 of touch area A and non-touch area B.Further, periphery cabling can be metal routing, and the resistance of metal is smaller, and conductive effect is better, is conducive to improve the touch-control sensitivity of touch-screen.
Particularly, the material of the shielding layer 2 in this touch-screen can be black-colored photosensitive resin in the present embodiment, black-colored photosensitive resin can be used by the photoresist in masking process so simultaneously, saved the technique of independent coating photoresist, reduce the use amount to photoresist, saved production cost.
Particularly, the material of the bridge layer 5 in this touch-screen can adopt transparent conductive material, for example, can be tin indium oxide (ITO), indium zinc oxide (IZO) material, carbon nano-tube or Graphene, and bridge layer also can adopt metal.Adopt ITO as the benefit of bridge layer 5, to be to improve the transmitance of touch-screen, and ITO and Metal Phase to compare reflection of light rate less, reduced the visual impact of reflected light to people.If the material of bridge layer 2 adopts preparation of metals, the resistance ratio ITO of metal is little, is conducive to reduce the resistance of touch control electrode layer, improve touch-control sensitivity, but metal is generally lighttight, can affect the transmitance of touch-screen.Like this, bridge layer 5 and periphery cabling 6 can be made by a composition technique, adopt a gray tone mask plate or intermediate tone mask plate to prepare the figure of two retes, and concrete preparation method is identical with embodiment before, no longer describe in detail herein.With respect to available technology adopting six road composition technique preparations, can reduce the access times of mask plate, thereby improve the manufacture efficiency of touch-screen like this, reduce production costs.
Particularly, the material of the touch control electrode layer 3 in this touch-screen can adopt transparent conductive material, for example, can be tin indium oxide (ITO) or indium zinc oxide (IZO) material, can also be the transparent conductive materials such as carbon nano-tube, Graphene.
Based on same utility model design, the utility model embodiment also provides a kind of display device, comprise the above-mentioned touch-screen that the utility model embodiment provides, this display device can be: any product or parts with Presentation Function such as mobile phone, panel computer, televisor, display, notebook computer, digital album (digital photo frame), navigating instrument.The enforcement of this display device can, referring to the embodiment of above-mentioned touch-screen, repeat part and repeat no more.
A kind of touch-screen and display device that the utility model embodiment provides, this touch-screen comprises a substrate, the touch control electrode layer being cascading on described substrate, insulation course, bridge layer and periphery cabling, form the figure of bridge layer and periphery cabling by composition technique.The utility model completes the composition of bridge layer and periphery cabling in a composition technique simultaneously, has reduced composition number of times in manufacture process, has improved the manufacture efficiency of touch-screen, has reduced production cost.
Obviously, those skilled in the art can carry out various changes and modification and not depart from spirit and scope of the present utility model the utility model.Like this, if within of the present utility model these are revised and modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model is also intended to comprise these changes and modification interior.
Claims (8)
1. a touch-screen, is characterized in that, comprises a substrate, the touch control electrode layer being cascading on described substrate, insulation course, bridge layer and periphery cabling; Wherein,
Described touch control electrode layer, described insulation course and described bridge layer are positioned at the touch area of described touch-screen; Described touch control electrode layer comprises with layer and arranges, intersects and put and touch-control sensing electrode and the touch-control drive electrode of mutually insulated; The described touch-control drive electrode that described bridge layer bridge joint is adjacent or adjacent described touch-control sensing electrode;
Described touch control electrode layer, described insulation course, described bridge layer and described periphery cabling are positioned at the non-touch area of described touch-screen.
2. touch-screen as claimed in claim 1, is characterized in that, also comprises: the shielding layer that is positioned at the non-touch area of described touch-screen;
Described shielding layer is between described substrate and described touch control electrode layer, or between described touch control electrode layer and described insulation course.
3. touch-screen as claimed in claim 2, is characterized in that, also comprises: be positioned on described periphery cabling, and cover the passivation layer of described touch area and described non-touch area.
4. the touch-screen as described in claim 1-3 any one, is characterized in that, described periphery cabling is metal routing.
5. touch-screen as claimed in claim 2, is characterized in that, the material of described shielding layer is black-colored photosensitive resin.
6. touch-screen as claimed in claim 1, is characterized in that, described bridge layer and or the material of described touch control electrode layer be transparent conductive material.
7. touch-screen as claimed in claim 6, is characterized in that, described transparent conductive material is tin indium oxide, indium zinc oxide, carbon nano-tube or Graphene.
8. a display device, is characterized in that, comprises the touch-screen as described in claim 1-7 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320539893.8U CN203480465U (en) | 2013-08-30 | 2013-08-30 | Touch screen and display device. |
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| CN201320539893.8U CN203480465U (en) | 2013-08-30 | 2013-08-30 | Touch screen and display device. |
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| CN203480465U true CN203480465U (en) | 2014-03-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016045278A1 (en) * | 2014-09-23 | 2016-03-31 | 京东方科技集团股份有限公司 | Ogs touch panel substrate and manufacturing method therefor, and related device |
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2013
- 2013-08-30 CN CN201320539893.8U patent/CN203480465U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016045278A1 (en) * | 2014-09-23 | 2016-03-31 | 京东方科技集团股份有限公司 | Ogs touch panel substrate and manufacturing method therefor, and related device |
| US9645688B2 (en) | 2014-09-23 | 2017-05-09 | Boe Technology Group Co., Ltd. | OGS touch screen substrate and method of manufacturing the same, and related apparatus |
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