CN106933412B - Manufacturing process of touch screen - Google Patents
Manufacturing process of touch screen Download PDFInfo
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- CN106933412B CN106933412B CN201710098054.XA CN201710098054A CN106933412B CN 106933412 B CN106933412 B CN 106933412B CN 201710098054 A CN201710098054 A CN 201710098054A CN 106933412 B CN106933412 B CN 106933412B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000005530 etching Methods 0.000 claims abstract description 19
- 239000011521 glass Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000010408 film Substances 0.000 claims description 68
- 239000010410 layer Substances 0.000 claims description 51
- 230000007704 transition Effects 0.000 claims description 29
- 230000003287 optical effect Effects 0.000 claims description 12
- 239000010409 thin film Substances 0.000 claims description 11
- 239000012790 adhesive layer Substances 0.000 claims description 9
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 8
- 239000000084 colloidal system Substances 0.000 claims description 8
- 229910052709 silver Inorganic materials 0.000 claims description 8
- 239000004332 silver Substances 0.000 claims description 8
- 229910003460 diamond Inorganic materials 0.000 claims description 7
- 239000010432 diamond Substances 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 2
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 13
- 230000009286 beneficial effect Effects 0.000 abstract description 5
- 230000035945 sensitivity Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
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- 230000006698 induction Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
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- 230000035807 sensation Effects 0.000 description 2
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- 238000012986 modification Methods 0.000 description 1
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
Abstract
The invention discloses a manufacturing process of a touch screen, which comprises the steps of etching a conductive electrode on an ITO film, printing an insulating layer on the ITO film, printing a conductive layer on the ITO film and attaching a glass cover plate on the ITO film; the conductive electrodes comprise a plurality of X electrodes and a plurality of Y electrodes which are insulated from each other, the X electrodes are kept continuous, and the Y electrodes are disconnected in the area crossed with the X electrodes; the insulating layer includes a plurality of insulating bridges located at the disconnection regions of the Y electrodes; the conducting layer comprises a plurality of jumper wires and a plurality of lead-out wires, each jumper wire is positioned on the insulating bridge and conducts the Y electrodes on two sides of the corresponding disconnected region, and each lead-out wire is positioned in the frame region of the ITO film; the touch screen has the advantages of being easy to process, saving materials, having few processes, being beneficial to improving production efficiency, improving yield and reducing cost, having higher precision and structural stability through etching and printing formed circuits, and realizing lightness and thinness on the premise of ensuring good display performance and working stability of the touch screen.
Description
Technical Field
The invention belongs to the field of touch screens, and particularly relates to a manufacturing process of a touch screen.
Background
When a finger touches a certain point on the screen, a touch IC controller of the touch screen needs to obtain current information of the point in the X-axis direction and the Y-axis direction, respectively, to accurately calculate the position of the touch point. The common capacitive touch screen generally adopts two layers of ITO electrodes as an X-axis electrode and a Y-axis electrode, the two layers of ITO electrodes are respectively deposited on two substrates, the two substrates are bonded by optical cement, an upper substrate is bonded with a glass cover plate by the optical cement, and thus the ITO electrodes in the X-axis direction and the Y-axis direction work on respective layers. Because the touch screen is made of two layers of ITO conductive materials and two layers of optical cement, the process is complicated, and the thickness of the touch screen is high; the conducting jumper wire is large in line width, and the jumper wire can be inevitably displayed in a display area to influence the display effect of the touch screen.
Disclosure of Invention
The invention aims to provide a manufacturing process of a touch screen, which has few processes and can efficiently produce a light and thin touch screen.
In order to solve the technical problems, the manufacturing process of the touch screen adopts the technical scheme that:
a process for manufacturing a touch screen comprising:
etching a conductive electrode on the ITO film; the conductive electrodes comprise a plurality of X electrodes extending along the X-axis direction and a plurality of Y electrodes extending along the Y-axis direction, the X electrodes and the Y electrodes are insulated from each other, the X electrodes are kept continuous in the X-axis direction, and the Y electrodes are disconnected in the area crossed with the X electrodes;
printing an insulating layer on the ITO thin film; the insulating layer comprises a plurality of insulating bridges, and the insulating bridges correspond to the disconnection regions of the Y electrodes and are connected with the Y electrodes on two sides of the corresponding disconnection regions;
printing a conductive layer on the ITO film; the conducting layer comprises a plurality of jumper wires and a plurality of outgoing lines, each jumper wire is positioned on the insulating bridge and conducts the Y electrodes on two sides of a corresponding disconnected region, each outgoing line is positioned in a frame region of the ITO film, one part of the outgoing lines are electrically connected with the X electrodes, and the other part of the outgoing lines are electrically connected with the Y electrodes;
and attaching a glass cover plate to the conductive side of the ITO film.
Furthermore, the conductive electrode further includes a transition electrode, two transition electrodes are respectively corresponding to the disconnection area of each Y electrode, the transition electrode and the X electrode are kept disconnected, the transition electrode and the Y electrode are kept disconnected, each insulating bridge is connected to the transition electrode located in the corresponding disconnection area and the Y electrode located on one side of the corresponding disconnection area, and two ends of the jumper are connected to the transition electrode and the Y electrode corresponding to two ends of the insulating bridge.
Further, the step of etching the conductive electrode on the ITO thin film is:
preparing the ITO film, wherein the ITO film comprises a base material and an ITO layer arranged on one side of the base material;
a dry film is attached to the ITO thin film, and the dry film covers the ITO layer;
exposing the dry film according to the shape of the conductive electrode, developing the exposed dry film, and protecting the ITO layer by the reacted dry film;
etching away the ITO layer which is not protected by the dry film by using an etching solution;
peeling off the reacted dry film.
Further, the step of printing the insulating layer on the ITO thin film includes:
and printing a layer of photosensitive insulating glue on the ITO film, and drying, exposing and developing the insulating glue.
Further, the step of printing the conductive layer on the ITO thin film includes:
and printing a layer of photosensitive silver colloid on the ITO film, and baking, exposing and developing the silver colloid.
Further, the step of disposing the glass cover plate on the conductive side of the ITO film includes:
and the conductive side of the ITO film is attached to the OCA optical adhesive layer, and the glass cover plate is attached to one side of the OCA optical adhesive layer, which is back to the ITO film.
Further, the conductive electrode portion constituting the Y electrode includes a plurality of diamond-shaped electrodes with upper and lower opposite corners removed.
Further, one end of each diamond-shaped electrode, which is close to the other diamond-shaped electrode, is provided with two protrusions, and the top of each protrusion is opposite to the corresponding transition electrode.
Further, the transition electrode is polygonal, and the top of the protrusion is opposite to the corner of the polygon.
Further, the line width of the jumper is less than 5 μm.
The manufacturing process of the touch screen has the beneficial effects that: only need etch out conductive electrode on the individual layer ITO film, printing insulating layer and conducting layer again can accomplish touch screen touch sensation and use the conducting wire, the setting of electrically conductive overlap joint line and lead-out wire, utilize the lead-out wire to connect the IC controller and can realize the touch-control with the electric current information transfer of touch point to the IC controller, the number of piles of touch screen has been reduced, good bending property has, easy processing, save materials, the process is few, be favorable to improving production efficiency, improve yields and reduce cost, through the etching, the circuit of printing formation, the stability of higher precision and structure has, can realize frivolousization under the prerequisite of guaranteeing good display performance and the job stability of touch-sensitive screen.
Drawings
FIG. 1 is a flow chart of a process for manufacturing a touch screen according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a touch screen manufactured by a manufacturing process of the touch screen according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of FIG. 2 with the OCA optical adhesive layer and the glass cover plate removed;
FIG. 4 is an enlarged view of portion A of FIG. 3;
FIG. 5 is an enlarged view of portion B of FIG. 4;
FIG. 6 is a schematic structural diagram of the ITO film of FIG. 5;
wherein: the device comprises a 1-ITO film, 11-X electrodes, 12-Y electrodes, 121-bulges, 13-transition electrodes, 2-insulating bridges, 3-jumper wires, 4-outgoing lines, 5-OCA optical adhesive layers and 6-glass cover plates.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 and fig. 2, a manufacturing process of a touch screen according to an embodiment of the present invention includes etching a conductive electrode on an ITO film 1, printing an insulating layer on the ITO film 1, printing a conductive layer on the ITO film 1, and attaching a glass cover plate 6 to a conductive side of the ITO film 1; as shown in fig. 3, the conductive electrode includes a plurality of X electrodes 11 extending along the X-axis direction and a plurality of Y electrodes 12 extending along the Y-axis direction, and the X electrodes 11 and the Y electrodes 12 are insulated from each other, the X electrodes 11 are continuous in the X-axis direction, and the Y electrodes 12 are disconnected in a region crossing the X electrodes 11; as shown in fig. 5, the insulating layer includes a plurality of insulating bridges 2, and the insulating bridges 2 correspond to the disconnection regions of the Y electrodes 12 and connect the Y electrodes 12 at both sides of the corresponding disconnection regions; as shown in fig. 3 and 5, the conductive layer includes a plurality of jumper wires 3 and a plurality of lead-out wires 4, each jumper wire 3 is positioned on the insulating bridge 2 and conducts the Y electrodes 12 on both sides of a corresponding off region, each lead-out wire 4 is positioned in a frame region of the ITO film 1, one part of the lead-out wires 4 is electrically connected to the X electrodes 11, and the other part of the lead-out wires 4 is electrically connected to the Y electrodes 12.
Only need etch out conductive electrode on individual layer ITO film 1, printing insulating layer and conducting layer again can accomplish touch screen touch sensation and use the conducting wire, the setting of electrically conductive overlap joint line and lead-out wire 4, utilize lead-out wire 4 to connect the IC controller and can realize the touch-control with the current information transfer of touch point to the IC controller, the number of piles of touch screen has been reduced, good bending property has, easy processing saves materials, the process is few, be favorable to improving production efficiency, improve yields and reduce cost, through the etching, the circuit of printing formation, the stability of higher precision and structure has, can realize frivolousization under the prerequisite of the good display performance and the job stability of assurance touch screen.
Further, as shown in fig. 5 to 6, in the manufacturing process of the touch screen in the embodiment of the present invention, the conductive electrode further includes a transition electrode 13, two transition electrodes 13 are corresponding to the disconnection area of each Y electrode 12, the transition electrode 13 and the X electrode 11 are kept disconnected, the transition electrode 13 and the Y electrode 12 are kept disconnected, each insulating bridge 2 connects the transition electrode 13 located in the corresponding disconnection area and the Y electrode 12 located at one side of the corresponding disconnection area, and two ends of the jumper 3 connect the transition electrode 13 and the Y electrode 12 corresponding to two ends of the insulating bridge 2. Corresponding to a single disconnection area of the Y electrode 12, two transition electrodes 13, four insulation bridges 2 and four jumper wires 3 are arranged to complete the conduction of the Y electrodes 12 on two sides of the disconnection area, the structure is simple, the overcurrent capacity of a circuit is not affected, the size of the jumper wires 3 can be reduced to a size invisible to naked eyes, the jumper wires 3 are prevented from interfering display, and a good display effect is ensured. Of course, a plurality of transition electrodes 13 may be disposed in the off region of each Y electrode 12, for example, three transition electrodes 13 and six jumpers 3 are used to complete the conduction of the Y electrodes 12 on both sides of the off region. The X electrode 11, the Y electrode 12 and the transition electrode 13 are obtained synchronously in the etching step, the fine insulating bridges 2 positioned between the transition electrode 13 and the Y electrode 12 can be obtained synchronously in the step of printing an insulating layer, the fine jumper wires 3 with the leading-out wires 4 positioned on the fine insulating bridges 2 can be obtained synchronously in the step of printing a conducting layer, the process is simple, the size and the position accuracy are easy to control, and the touch screen with good display performance is obtained.
Further, as shown in fig. 1, in the embodiment of the present invention, the step of etching the conductive electrode on the ITO thin film 1 includes:
preparing an ITO film 1, wherein the ITO film 1 comprises a base material and an ITO layer arranged on one side of the base material;
a dry film is attached to the ITO film 1, and the dry film covers the ITO layer;
exposing the dry film according to the shape of the conductive electrode, developing the exposed dry film, and protecting the ITO layer by the reacted dry film;
etching off the ITO layer which is not protected by the dry film by using an etching solution;
peeling off the reacted dry film.
By utilizing the image transfer function of the dry film, the conductive electrode etching including the X electrode 11, the Y electrode 12 and the transition electrode 13 (if any arrangement is available) is synchronously completed on the ITO film 1, the process is simple, the precision of the conductive electrode is ensured, and the yield is improved. The ITO film 1 comprises a substrate and an ITO layer arranged on the substrate, and a conductive electrode can be formed by etching the ITO layer, so that the ITO film has good transparency and ensures a good display effect. Specifically, the base material can be a PET (polyethylene terephthalate) film, has excellent physical and mechanical properties in a wider temperature range, can reach 120 ℃ after long-term use, has excellent electrical insulation, good creep resistance, fatigue resistance, friction resistance and dimensional stability, is suitable for serving as the base material of a touch screen structure, and can ensure the stability of the working performance of the touch screen.
Further, as shown in fig. 1, in the embodiment of the present invention, the step of printing the insulating layer on the ITO film 1 includes: a layer of photosensitive insulating paste is printed on the ITO film 1, and the insulating paste is dried, exposed and developed.
The synchronous arrangement of the insulation bridges 2 is completed by utilizing the photosensitive function of photosensitive insulation glue, the process is simple, the orientation and the dimensional precision of the insulation bridges 2 are ensured, and the yield is improved.
Further, as shown in fig. 1, in the embodiment of the present invention, the step of printing the conductive layer on the ITO film 1 includes: printing a layer of photosensitive silver colloid on the ITO film 1, and baking, exposing and developing the silver colloid.
Utilize the sensitization function of silver colloid to accomplish the synchronous setting of leading-out wire 4 and the tiny wire jumper 3 that is located on tiny insulating bridge 2, simple process guarantees the position, the size precision of leading-out wire 4 wire jumper 3 and wire jumper 3 of insulating bridge 2, improves the yields. And the silver colloid has good conductivity and high line resolution, is beneficial to reducing the line width of the jumper wire 3 and the line distance of the outgoing line 4, and has better display effect.
Further, as shown in fig. 1, in the embodiment of the present invention, the step of attaching the glass cover plate 6 to the conductive side of the ITO film 1 includes: the conductive side of the ITO film 1 is attached with the OCA optical adhesive layer 5, and then the glass cover plate 6 is attached to the side, back to the ITO film 1, of the OCA optical adhesive layer 5. The process is simple, the ITO film 1 and the glass cover plate 6 are bonded by only one OCA optical adhesive layer 5, and the touch screen can be obtained, so that the touch screen is guaranteed to have good flexibility.
Further, as shown in fig. 6, in the embodiment of the present invention, the conductive electrode portion constituting the Y electrode 12 includes a plurality of diamond-shaped electrodes with upper and lower opposite corners removed. The removed upper and lower diagonal corners are the off regions of the Y electrodes 12. The Y electrode 12 is a diamond electrode, which is advantageous for improving the touch sensitivity. Similarly, the selection of the X electrode 11 including a plurality of diamond electrodes connected to each other is also advantageous in improving the touch sensitivity. Of course, other electrodes such as square electrodes may be selected for the X electrode 11 and the Y electrode 12. The display areas of the X electrode 11 and the Y electrode 12 are diamond electrodes, so that the arrangement of the transition electrode 13 is convenient, the induction capacitance is increased, and the touch sensitivity is improved.
Further, as shown in fig. 6, in the embodiment of the present invention, two protrusions 121 are disposed at an end of each diamond electrode close to another diamond electrode, and a top of each protrusion 121 is opposite to the corresponding transition electrode 13. The touch control circuit is beneficial to increasing the induction capacitance and improving the touch sensitivity. The protrusions 121 are preferably triangular in structure, which is more advantageous for improving the tactile sensitivity.
Further, as shown in fig. 6, in the embodiment of the present invention, the transition electrode 13 is polygonal, which is beneficial to increase the sensing capacitance and improve the touch sensitivity. One corner of the polygon is preferably opposite to the top of the protrusion 121, so that the coverage of the transition electrode 13 and the Y electrode 12 by the insulating bridge 2 is reduced, the induction capacitance is further increased, and the touch sensitivity is improved. Specifically, the protrusions 121 may be formed by removing upper and lower opposite corners of the diamond-shaped electrode.
Further, in the embodiment of the invention, the line width of the jumper wire 3 is less than 5 μm, and the line width of the jumper wire 3 is less than 5 μm, so that the jumper wire 3 can not be seen by naked eyes when the touch screen is used, the jumper wire 3 is effectively prevented from interfering display, a good display effect is achieved, and the transition electrode 13 is arranged, so that the overcurrent capacity is not influenced by the reduction of the line width, and the touch sensitivity can be ensured.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The manufacturing process of the touch screen is characterized by comprising the following steps:
etching a conductive electrode on the ITO film; the conductive electrode comprises a plurality of X electrodes extending along the X-axis direction and a plurality of Y electrodes extending along the Y-axis direction, and the conductive electrode part forming the Y electrode comprises a plurality of rhombic electrodes with upper and lower opposite angles removed; the transition electrode is polygonal, one end of each diamond electrode close to the other diamond electrode is provided with two protrusions, the top of each protrusion is opposite to the corresponding transition electrode, and the top of each protrusion is opposite to the corner of the polygon;
printing an insulating layer on the ITO thin film; the insulating layer comprises a plurality of insulating bridges, the insulating bridges correspond to the disconnection regions of the Y electrodes and are connected with the Y electrodes on two sides of the corresponding disconnection regions, and each insulating bridge is connected with the transition electrode positioned in the corresponding disconnection region and the Y electrode positioned on one side of the corresponding disconnection region;
printing a conductive layer on the ITO film; the conducting layer comprises a plurality of jumper wires and a plurality of outgoing lines, each jumper wire is positioned on the insulating bridge and conducts the Y electrodes on two sides of a corresponding disconnected region, each outgoing line is positioned in a frame region of the ITO film, one part of the outgoing lines are electrically connected with the X electrodes, the other part of the outgoing lines are electrically connected with the Y electrodes, and two ends of each jumper wire are connected with the transition electrodes and the Y electrodes corresponding to two ends of the insulating bridge;
and attaching a glass cover plate to the conductive side of the ITO film.
2. The manufacturing process of the touch screen of claim 1, wherein the step of etching the conductive electrode on the ITO thin film comprises:
preparing the ITO film, wherein the ITO film comprises a base material and an ITO layer arranged on one side of the base material;
a dry film is attached to the ITO thin film, and the dry film covers the ITO layer;
exposing the dry film according to the shape of the conductive electrode, developing the exposed dry film, and protecting the ITO layer by the reacted dry film;
etching away the ITO layer which is not protected by the dry film by using an etching solution;
peeling off the reacted dry film.
3. The manufacturing process of the touch screen according to claim 1, wherein the step of printing the insulating layer on the ITO thin film comprises:
and printing a layer of photosensitive insulating glue on the ITO film, and drying, exposing and developing the insulating glue.
4. The manufacturing process of the touch screen according to claim 1, wherein the step of printing the conductive layer on the ITO thin film comprises:
and printing a layer of photosensitive silver colloid on the ITO film, and baking, exposing and developing the silver colloid.
5. The manufacturing process of the touch screen according to claim 1, wherein the step of disposing the glass cover plate on the conductive side of the ITO film comprises:
and attaching an OCA optical adhesive layer to the conductive side of the ITO film, and attaching the glass cover plate to one side of the OCA optical adhesive layer, which is back to the ITO film.
6. The manufacturing process of the touch screen according to claim 1, wherein the line width of the jumper is less than 5 μm.
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| CN201710098054.XA CN106933412B (en) | 2017-02-23 | 2017-02-23 | Manufacturing process of touch screen |
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| CN201710098054.XA CN106933412B (en) | 2017-02-23 | 2017-02-23 | Manufacturing process of touch screen |
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| CN106933412A CN106933412A (en) | 2017-07-07 |
| CN106933412B true CN106933412B (en) | 2021-03-12 |
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| CN107678587A (en) * | 2017-09-27 | 2018-02-09 | 深圳市骏达光电股份有限公司 | Touch sensitive layer and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102253775A (en) * | 2011-06-22 | 2011-11-23 | 深圳市骏达光电有限公司 | Touch screen |
| CN104820535A (en) * | 2015-05-27 | 2015-08-05 | 广东泰通科技股份有限公司 | Process for manufacturing single-layer multi-point capacitive touch screen with pure ITO membrane structure |
| CN105786260A (en) * | 2016-04-22 | 2016-07-20 | 京东方科技集团股份有限公司 | Touch screen and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9285909B2 (en) * | 2010-04-09 | 2016-03-15 | Apple Inc. | Equalizing parasitic capacitance effects in touch screens |
| KR101448251B1 (en) * | 2010-10-28 | 2014-10-08 | 삼성디스플레이 주식회사 | Touch Screen Panel and Display Device Having the Same |
| CN103176683A (en) * | 2013-04-03 | 2013-06-26 | 大连七色光太阳能科技开发有限公司 | Touch screen electric conduction bridging |
| CN204576474U (en) * | 2015-03-27 | 2015-08-19 | 福建省辉锐电子技术有限公司 | A kind of two bridging structures of OGS capacitive touch screen |
| CN105912164A (en) * | 2016-04-12 | 2016-08-31 | 京东方科技集团股份有限公司 | Touch baseplate and preparation method and display device for same |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102253775A (en) * | 2011-06-22 | 2011-11-23 | 深圳市骏达光电有限公司 | Touch screen |
| CN104820535A (en) * | 2015-05-27 | 2015-08-05 | 广东泰通科技股份有限公司 | Process for manufacturing single-layer multi-point capacitive touch screen with pure ITO membrane structure |
| CN105786260A (en) * | 2016-04-22 | 2016-07-20 | 京东方科技集团股份有限公司 | Touch screen and display device |
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Effective date of registration: 20240329 Address after: 221000, 1st Floor, Da Health Industrial Park, Xiyi High tech Industrial Development Zone, Xinyi City, Xuzhou City, Jiangsu Province Patentee after: Jiangsu Junda Optoelectronic Technology Co.,Ltd. Country or region after: China Address before: 518000 4-6 / F, building 4, yingrenshi Guanghui Electrical Industrial Park, Shiyan street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN JUNDA OPTOELECTRONICS Co.,Ltd. Country or region before: China |