CN103092414B - A kind of external hanging type touch-screen and preparation method thereof, display device - Google Patents
A kind of external hanging type touch-screen and preparation method thereof, display device Download PDFInfo
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- CN103092414B CN103092414B CN201310017879.6A CN201310017879A CN103092414B CN 103092414 B CN103092414 B CN 103092414B CN 201310017879 A CN201310017879 A CN 201310017879A CN 103092414 B CN103092414 B CN 103092414B
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Abstract
The invention discloses a kind of external hanging type touch-screen and preparation method thereof, display device, in order to realize a kind of structure and the more simple touch-screen of manufacture craft.Touch-screen provided by the invention comprises substrate; Be formed in the bridging line described substrate being positioned at touch area, this bridging line is positioned at the intersection region place of touch drive electrode to be formed and touch sensible electrode; Form insulation course on the substrate, this insulation course at least covers the center section of described bridging line, and exposes the two end portions of described bridging line; Be formed in touch drive electrode and the touch sensible electrode of cross arrangement on described substrate, and cover the protective seam on described touch drive electrode and touch sensible electrode; Wherein said touch drive electrode or touch sensible electrode are broken as multiple touch driven element electrode or multiple touch sensible sub-electrode in described intersection region; Each touch driven element electrode or each touch sensible sub-electrode are electrically connected by described bridging line.
Description
Technical field
The present invention relates to display technique field, particularly relate to a kind of external hanging type touch-screen and preparation method thereof, display device.
Background technology
In display technique field, contact panel is more and more extensive in the application of touching display screen technical field as a kind of new input media.The touch-control input mode of contact panel (TouchPanel) comprises resistance-type, condenser type, optical profile type, sound wave type, electromagnetic type etc.Wherein, capacitance type touch-control panel has that the reaction time is fast, fiduciary level is good and durability advantages of higher.Classify from the integration mode with display device, touch-screen at least comprises embedded (InCell) and external hanging type (Addon) two kinds.
The structure of external hanging type touch-screen is generally, and makes the touch drive electrode and the touch sensible electrode that realize touch function in the touch area of substrate, makes in the frame region of substrate the lead-in wire touching drive electrode and touch sensible electrode.Touch drive electrode and touch sensible electrode can be arranged on same layer or be arranged on different layers.
In order to produce thinner touch-screen, usually, the touch drive electrode of external hanging type touch-screen and touch sensible electrode are arranged on same layer.If Fig. 1 is existing external hanging type touch screen structure, comprise the touch drive electrode 11 and touch sensible electrode that are formed in and substrate 10 are positioned at touch area; Touch drive electrode 11 and touch sensible electrode are positioned at same layer and cross arrangement, the touch sensible electrode drive electrode 11 that is touched is split, namely touch sensible electrode with touch the region that intersects of drive electrode 11 and disconnect, the touch sensible electrode after segmentation comprises multiple touch sensible sub-electrode 121.Also comprise, the first insulation course 13 between adjacent two touch sensible sub-electrodes 121, and be positioned on the first insulation course 13 for connecting the wire 14 of adjacent two touch sensible sub-electrodes 121; Also comprise the lead-in wire 15 being positioned at frame region; And cover the protective seam 16 of whole substrate 1; Protective seam 16 is provided with via hole, is convenient to lead-in wire 15 and exposes, be connected with chip or IC.
The touch-screen of different structure, fabrication processing is different, and mutually isostructural technology for manufacturing touch screen flow process also may be different.In order to produce the more simple lower-cost touch-screen of structure, the fabrication processing of touch-screen is extremely important.The fabrication processing of the touch-screen shown in Fig. 1 is as follows:
Step one: depositing first conductive rete on the substrate 10, forms lead-in wire 15 and touch sensible sub-electrode 121 through patterning processes and touches drive electrode 11;
Step 2: depositing first insulator layer on the substrate 10, forms the first insulation course 13 on touch drive electrode 11 and between adjacent two touch sensible sub-electrodes 121 through patterning processes;
Step 3: depositing second conductive rete on the substrate 10, forms the wire 14 for connecting adjacent two touch sensible sub-electrodes 121 through patterning processes;
Step 4: deposit the second insulation course as protective seam 16 on substrate, forms the via hole of the setting area be positioned at above lead-in wire 15 through patterning processes.
As can be seen from the manufacture craft of above-mentioned making touch-screen, comprise four patterning processes, manufacturing process is more complicated.
In addition, prior art, is generally also included on substrate and forms one deck conductive film layer after having made touch-screen step 4, and this conductive film layer is used for Electro-static Driven Comb (Electro-StaticDischarge, ESD), namely electrostatic protection layer.
In sum, existing touch screen structure is simple not, and manufacture craft is simple not.
Summary of the invention
The embodiment of the present invention provides a kind of external hanging type touch-screen and preparation method thereof, display device, in order to realize a kind of structure and the more simple touch-screen of manufacture craft.
The method for making of a kind of external hanging type touch-screen that the embodiment of the present invention provides, comprising:
In the touch area of substrate, the intersection region place of touch drive electrode to be formed and touch sensible electrode, forms bridging line;
The substrate being formed with described bridging line forms insulation course, and this insulation course at least covers the center section of described bridging line, and exposes the two end portions of described bridging line;
By a patterning processes, the substrate being formed with described insulation course is formed touch drive electrode and the touch sensible electrode of cross arrangement, and covers the protective seam on described touch drive electrode and touch sensible electrode; And touch drive electrode or touch sensible electrode are broken as multiple touch driven element electrode or multiple touch sensible sub-electrode in described intersection region; Each touch driven element electrode or each touch sensible sub-electrode are electrically connected by described bridging line.
Preferably, by a patterning processes, form described touch drive electrode and touch sensible electrode, and cover the protective seam on described touch drive electrode and touch sensible electrode, be specially:
The substrate being formed with described insulation course deposits one deck conductive film layer;
The substrate being formed with described conductive film layer deposits a layer insulating;
Photoresist coating, exposure, development, photoresist removal technological process are carried out to described conductive film layer and insulation course simultaneously, form the figure of described touch drive electrode and touch sensible electrode and protective seam.
Preferably, while substrate is formed described bridging line, also comprise: form the lead-in wire being positioned at substrate frame region, described bridging line and described lead-in wire are by being formed with a patterning processes.
Preferably, while forming the insulation course be positioned in described bridging line, also comprise: form the insulation course be positioned on described lead-in wire;
While the described touch drive electrode of formation and touch sensible electrode, also comprise: form the electrostatic protection layer being positioned at described frame region, described touch drive electrode, touch sensible electrode and electrostatic protection layer are by being formed with a patterning processes.
Preferably, while formation is positioned at the protective seam of touch area, also comprise: form the protective seam being positioned at frame region, formed on this protective seam simultaneously and be positioned at above described lead-in wire, for exposing the via hole of lead-in wire.
A kind of external hanging type touch-screen that the embodiment of the present invention provides, comprising:
Substrate;
Be formed in the bridging line described substrate being positioned at touch area, this bridging line is positioned at the intersection region place of touch drive electrode to be formed and touch sensible electrode;
Form insulation course on the substrate, this insulation course at least covers the center section of described bridging line, and exposes the two end portions of described bridging line;
Be formed in touch drive electrode and the touch sensible electrode of cross arrangement on described substrate, and cover the protective seam on described touch drive electrode and touch sensible electrode; Wherein said touch drive electrode or touch sensible electrode are broken as multiple touch driven element electrode or multiple touch sensible sub-electrode in described intersection region; Each touch driven element electrode or each touch sensible sub-electrode are electrically connected by described bridging line.
Preferably, also comprise: a plurality of leads being positioned at substrate frame region, this lead-in wire and described bridging line are arranged with layer.
Preferably, described insulation course also comprises: be positioned at the part that substrate frame region covers described lead-in wire; Insulation course part in described bridging line is arranged with layer with the insulation course part being positioned at the top that goes between.
Preferably, also comprise: be positioned at the electrostatic protection layer that frame region and described touch drive electrode and touch sensible electrode are arranged with layer.
Preferably, also comprise: be positioned at the protective seam in described electrostatic protection layer; And being positioned at via hole corresponding with described lead-in wire position on this protective seam, this via hole ensures that described lead-in wire exposes.
The embodiment of the present invention also provides a kind of display device, comprises described touch-screen.
In sum, the external hanging type touch-screen that the embodiment of the present invention provides, touches drive electrode and touch sensible electrode is arranged with layer, and the protective seam touched on drive electrode and touch sensible electrode completes with in a patterning processes.Namely remove technological process formed by photoresist coating, exposure, development, a photoresist; the pattern of protective seam is identical with the image of touch sensible electrode with touch drive electrode; save technological process, the touch-screen thickness produced by the method is thinner, and structure is simpler.
Accompanying drawing explanation
Fig. 1 is prior art touch-screen schematic cross-section;
The touch-screen schematic top plan view that Fig. 2 provides for the embodiment of the present invention;
The touch screen structure schematic diagram being formed with protective seam pattern that Fig. 3 provides for the embodiment of the present invention;
Fig. 4 for the touch-screen shown in Fig. 2 A-A ' to sectional view;
The touch screen structure schematic cross-section being formed with electrostatic protection layer that Fig. 5 provides for the embodiment of the present invention;
The method flow schematic diagram of the touch-screen shown in formation Fig. 5 that Fig. 6 provides for the embodiment of the present invention;
The touch-screen schematic top plan view being formed with bridging line and lead-in wire that Fig. 7 provides for the embodiment of the present invention;
Fig. 8 is formed with the insulation course schematic top plan view covering bridging line and frame region for the touch-screen shown in Fig. 7.
Embodiment
Embodiments provide a kind of external hanging type touch-screen and preparation method thereof, display device, in order to realize a kind of structure and the more simple touch-screen of manufacture craft.
The touch-screen that the embodiment of the present invention provides, adopts three patterning processes, formation process flow process and structure comparatively simple and gentlier, thinner touch-screen.
Patterning processes in the present invention generally comprises the processing steps such as photoresist coating, exposure, development, photoresist removal.
It should be noted that, the touch-screen that the embodiment of the present invention provides, touch drive electrode and touch sensible electrode and to be positioned on same substrate and to arrange with layer, touch drive electrode and touch sensible electrode along the cross arrangement of orthogonal direction.At intersection region place, touch drive electrode or touch sensible electrode are broken as multiple touch driven element electrode or touch sensible sub-electrode.Further, touch drive electrode, touch sensible electrode, and covering touches drive electrode and touch sensible electrode protecting layer is completed by a same patterning processes.
The technical scheme that the embodiment of the present invention provides is illustrated below by accompanying drawing.Be broken as multiple touch sensible sub-electrode for touch sensible electrode to illustrate.
See Fig. 2, the external hanging type touch-screen schematic top plan view that the embodiment of the present invention provides, specifically comprises:
Substrate 1;
Form the bridging line 2 in touch area (region as in dotted line frame in Fig. 2) on substrate 1, this bridging line 2 is positioned at touch drive electrode to be formed and the intersection region place of touch sensible electrode, for connecting each touch sensible sub-electrode;
Form insulation course 4 on substrate 1, this insulation course 4 at least covers the center section of bridging line 2, exposes two end portions; The frame region of all right covered substrate 1 of this insulation course 4; Or other regions of the touch area of all right covered substrate 1, as long as ensure that the two end portions of bridging line 2 is exposed, are convenient to be electrical connected with touch driven element electrode.
Form many touch drive electrodes 5 longitudinally arranged on substrate 1 and many horizontal arranged touch sensible electrodes; and be positioned at the protective seam touched on drive electrode 5 and touch sensible electrode, and this protective seam only covers touch drive electrode 5 and touch sensible electrode in touch area.And touch sensible electrode is broken as multiple touch sensible sub-electrode 61 at described intersection region place; As Fig. 2, each touch sensible sub-electrode 61 is electrical connected with bridging line 2; The touch sensible sub-electrode 61 being positioned at same a line is electrical connected with bridging line 2, forms a complete touch sensible electrode.
Preferably, as shown in Figure 2, this touch-screen can also comprise: the lead-in wire 3 being positioned at substrate 1 upper side frame region; Go between 3 for touch drive electrode and touch sensible electrode being guided to other circuit outside substrate touch area, such as, on flexible PCB or in chip IC.
Touch-screen also comprises: be positioned at the protective seam that frame region covers lead-in wire.As shown in Figure 3, be protective seam 7 figure on substrate 1, comprise the part being positioned at and touching on drive electrode and touch sensible sub-electrode, and be positioned at the part of frame region.The protective seam of frame region ensures that the lead-in wire on substrate exposes, and therefore, as shown in Figure 3, also comprises the via hole 8 of the position corresponding with described lead-in wire.
In specific implementation process; touch drive electrode 5 shown in Fig. 2 and touch sensible sub-electrode 61 and the protective seam shown in Fig. 37 and via hole 8 are being formed with in a patterning processes; therefore also save technological process, the external hanging type touch-screen made is lighter, thin, and structure is simpler.
Fig. 4 for the touch-screen shown in Fig. 2 A-A ' to sectional view, specifically describe the structure of lower touch-screen shown in Fig. 2 below again.
Touch-screen comprises: substrate 1, with the bridging line 2 of layer setting and lead-in wire 3 on substrate 1;
Be positioned at the insulation course 4 of center section in each bridging line 2, as Fig. 4, insulation course 4 width is transversely less than bridging line 2 length transversely.
Be positioned at the touch sensible sub-electrode 61 that substrate 1 is electrical connected with bridging line 2, the touch drive electrode 5 arranged with layer with touch sensible sub-electrode 61.
Also comprise: cover touch sensible sub-electrode 61, touch the protective seam 7 of drive electrode 5 and lead-in wire 3.This protective seam is insulation course.
Preferably, also comprise see the touch-screen shown in Fig. 5, Fig. 4: be positioned at frame region, the electrostatic protection layer 9 arranged with layer with touch drive electrode 5 and touch sensible sub-electrode 61; This electrostatic protection layer 9 is the conductive layer of unsettled setting (not namely being connected with any power supply); this conductive layer is insulated by insulation course 4 phase with the lead-in wire 3 be positioned at below it; namely the insulation course 4 on substrate 1 also comprises the part being positioned at frame region, ensures that lead-in wire 3 insulate with electrostatic protection layer 9 phase.
Electrostatic protection layer 9 shown in Fig. 5 is being formed with in a patterning processes with touch drive electrode 5 and touch sensible sub-electrode 61, namely while making touches drive electrode 5 and touch sensible sub-electrode 61, forms electrostatic protection layer 9, has saved technological process.Because prior art needs while formation touches drive electrode and touch sensible sub-electrode; the conductive layer being positioned at frame region is etched away; after forming the protective seam being positioned at and touching on drive electrode and touch sensible sub-electrode, also to form by extra manufacture craft the electrostatic protection layer be positioned on protective seam.The present invention utilizes the conductive layer being positioned at frame region as electrostatic protection layer, can discharge the electrostatic that touch-screen causes because of friction or contact well.Prevent electrostatic from causing damage to touch-screen or the device of display panel that is arranged in below touch-screen.Electrostatic protection layer of the present invention is arranged with layer with touch drive electrode and touch sensible sub-electrode, and existing electrostatic protection layer of comparing and touch drive electrode are positioned at the structure of different layers, and touch-screen is thinner.Solve existing touch screen structure and technique simple question all not.
Preferably, described lead-in wire and bridging line can be metals, such as, can be the metals such as copper, iron, aluminium and molybdenum.
The manufacturing process of the above-mentioned touch-screen of the present invention is described from technological process aspect below, and see Fig. 6, method for making entirety comprises the following steps:
S11, on substrate, form by a plated film and patterning processes the bridging line being positioned at touch area, and form the lead-in wire being positioned at frame region.
S12, form by a plated film and patterning processes the insulation course being positioned at described bridging line center section and being positioned on described lead-in wire; The insulation course being positioned at center section in bridging line ensures that the two ends of bridging line are exposed.
S13, by double coating process, and patterning processes is formed and touches drive electrode and touch sensible electrode, covers the protective seam touching drive electrode and touch sensible electrode, and for exposing the via hole of lead-in wire.Described touch sensible electrode or touch drive electrode are broken as multiple touch sensible sub-electrode or multiple touch driven element electrode.Each touch sensible sub-electrode or each driven element electrode are electrical connected by described bridging line.
Multiple touch sensible sub-electrode is broken as below, the detailed forming process of the touch-screen shown in key diagram 5 for touch sensible electrode.
Step one, on substrate, deposit one deck conductive film layer, such as, form the certain thickness metallic diaphragm of one deck; By processing steps (namely patterning processes) such as photoresist coating, exposure, development, photoresist removals, form the bridging line 2 being positioned at touch area as shown in Figure 7 and the lead-in wire 3 being positioned at frame region.
Step 2, step one formed touch-screen on deposit a layer insulating, this insulation course can be transparent silicon oxide or silicon nitride film layer; By the figure of patterning processes formation insulation course 4 as shown in Figure 8; Insulation course 4 is part and frame region between bridging line 2.Ensure that the two ends of each bridging line 2 are exposed, be convenient to be electrically connected with touch sensible sub-electrode.
Successively deposition one deck conductive film layer and a layer insulating on step 3, the touch-screen that formed in step 2, conductive film layer can be transparent metal oxide rete, such as, can be indium tin oxide ITO or indium-zinc oxide IZO;
Then form touch drive electrode 5 as shown in Figure 2 and touch sensible sub-electrode 61 by patterning processes, and form the conductive layer being positioned at frame region as shown in Figure 5, this conductive layer is the electrostatic protection layer 9 of electrostatic prevention.Electrostatic protection layer 9 insulate with touch drive electrode 5 and touch sensible sub-electrode 61 phase.Also form the protective seam 7 be positioned on touch drive electrode 5 and touch sensible sub-electrode 61 shown in Fig. 3, and form via hole 8.
The manufacturing process of touch-screen has been completed by above-mentioned three steps.
From step 3, touch drive electrode and touch sensible electrode and electrostatic protection layer and arrange with layer, and completed by a patterning processes, the structure of touch-screen is more simple and technological process is simpler.Further, the via hole be positioned on protective seam is formed with touch drive electrode and touch sensible electrode simultaneously, saves technological process.
The embodiment of the present invention also provides a kind of display device, comprises described external hanging type touch-screen.
In sum; the touch-screen that the embodiment of the present invention provides, touches drive electrode and touch sensible electrode is arranged with layer, only covers the protective seam touching drive electrode and touch sensible electrode in touch area; identical with the pattern of touch sensible electrode with touch drive electrode, structure is simple.
Obviously, those skilled in the art can carry out various change and modification to 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 (10)
1. a method for making for external hanging type touch-screen, is characterized in that, the method comprises:
In the touch area of substrate, the intersection region place of touch drive electrode to be formed and touch sensible electrode, forms bridging line;
The substrate being formed with described bridging line forms insulation course, and this insulation course at least covers the center section of described bridging line, and exposes the two end portions of described bridging line;
By a patterning processes, the substrate being formed with described insulation course is formed touch drive electrode and the touch sensible electrode of cross arrangement, and covers the protective seam on described touch drive electrode and touch sensible electrode; And touch drive electrode or touch sensible electrode are broken as multiple touch driven element electrode or multiple touch sensible sub-electrode in described intersection region; Each touch driven element electrode or each touch sensible sub-electrode are electrically connected by described bridging line;
While the described touch drive electrode of formation and touch sensible electrode, also comprise: form the electrostatic protection layer being positioned at frame region, described electrostatic protection layer is the conductive layer be not connected with any power supply, and described touch drive electrode, touch sensible electrode and electrostatic protection layer are by being formed with a patterning processes; Form the via hole be positioned on described protective seam, described touch electrode, touch sensible electrode and via hole are formed by a patterning processes.
2. method according to claim 1, is characterized in that, by a patterning processes, forms described touch drive electrode and touch sensible electrode, and covers the protective seam on described touch drive electrode and touch sensible electrode, be specially:
The substrate being formed with described insulation course deposits one deck conductive film layer;
The substrate being formed with described conductive film layer deposits a layer insulating;
Photoresist coating, exposure, development, photoresist removal technological process are carried out to described conductive film layer and insulation course simultaneously, form the figure of described touch drive electrode and touch sensible electrode and protective seam.
3. method according to claim 1, is characterized in that, while substrate is formed described bridging line, also comprises: form the lead-in wire being positioned at substrate frame region, and described bridging line and described lead-in wire are by being formed with a patterning processes.
4. method according to claim 3, is characterized in that, while forming the insulation course be positioned in described bridging line, also comprises: form the insulation course be positioned on described lead-in wire.
5. method according to claim 4; it is characterized in that, while formation is positioned at the protective seam of touch area, also comprise: form the protective seam being positioned at frame region; formed on this protective seam is positioned at above described lead-in wire, for exposing the via hole of lead-in wire simultaneously.
6. an external hanging type touch-screen, is characterized in that, comprising:
Substrate;
Be formed in the bridging line described substrate being positioned at touch area, this bridging line is positioned at the intersection region place of touch drive electrode to be formed and touch sensible electrode;
Form insulation course on the substrate, this insulation course at least covers the center section of described bridging line, and exposes the two end portions of described bridging line;
Be formed in touch drive electrode and the touch sensible electrode of cross arrangement on described substrate, and only cover the protective seam on described touch drive electrode and touch sensible electrode in touch area; Wherein said touch drive electrode or touch sensible electrode are broken as multiple touch driven element electrode or multiple touch sensible sub-electrode in described intersection region; Each touch driven element electrode or each touch sensible sub-electrode are electrically connected by described bridging line;
Be positioned at the electrostatic protection layer that frame region and described touch drive electrode and touch sensible electrode are arranged with layer, described electrostatic protection layer is the conductive layer be not connected with any power supply;
Be positioned at the via hole on described protective seam, described in be positioned at via hole on protective seam and touch drive electrode and touch sensible electrode is formed simultaneously.
7. touch-screen according to claim 6, is characterized in that, also comprises: a plurality of leads being positioned at substrate frame region, and this lead-in wire and described bridging line are arranged with layer.
8. touch-screen according to claim 7, is characterized in that, described insulation course also comprises: be positioned at the part that substrate frame region covers described lead-in wire; Insulation course part in described bridging line is arranged with layer with the insulation course part being positioned at the top that goes between.
9. touch-screen according to claim 8, is characterized in that, also comprises the protective seam be positioned in described electrostatic protection layer; And being positioned at via hole corresponding with described lead-in wire position on this protective seam, this via hole ensures that described lead-in wire exposes.
10. a display device, is characterized in that, comprises the touch-screen described in the arbitrary claim of claim 6-9.
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| CN201310017879.6A CN103092414B (en) | 2013-01-17 | 2013-01-17 | A kind of external hanging type touch-screen and preparation method thereof, display device |
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| CN201310017879.6A CN103092414B (en) | 2013-01-17 | 2013-01-17 | A kind of external hanging type touch-screen and preparation method thereof, display device |
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| CN103412695B (en) * | 2013-07-22 | 2016-12-28 | 宜昌南玻显示器件有限公司 | The capacitive touch screen of OGS structure |
| CN103955312A (en) * | 2014-05-06 | 2014-07-30 | 山东华芯富创电子科技有限公司 | Anti-static structure and manufacturing method thereof for touch panel |
| CN104834407B (en) | 2015-05-29 | 2019-01-22 | 合肥鑫晟光电科技有限公司 | Preparation method, touch panel and the display device of touch panel |
| CN105677122A (en) * | 2016-01-12 | 2016-06-15 | 安徽方兴科技股份有限公司 | Manufacturing method of GG structure touch screen function chip |
| CN105446570B (en) * | 2016-01-28 | 2017-02-15 | 京东方科技集团股份有限公司 | Touch control unit and preparation method thereof and touch control substrate |
| EP3308253A4 (en) | 2016-07-04 | 2019-01-16 | Boe Technology Group Co. Ltd. | Touch substrate, touch display panel and touch display apparatus having the same, and fabricating method thereof |
| CN106354310A (en) * | 2016-08-29 | 2017-01-25 | 贵州晟华科技有限公司 | Touch panel, touch panel manufacturing method and touch display screen |
| CN106873835B (en) * | 2017-02-23 | 2020-05-05 | 武汉华星光电技术有限公司 | Touch panel, manufacturing method thereof and touch display screen |
| CN108089748A (en) * | 2017-12-14 | 2018-05-29 | 武汉华星光电半导体显示技术有限公司 | Flexible touch panel and flexible OLED display panel |
| CN109917957B (en) * | 2019-02-27 | 2023-11-21 | 上海天马微电子有限公司 | Touch panel, manufacturing method and repairing method thereof and touch device |
| JP2022535171A (en) * | 2019-03-29 | 2022-08-05 | 京東方科技集團股▲ふん▼有限公司 | Touch panels, touch display screens and display devices |
| CN112198995A (en) * | 2020-11-11 | 2021-01-08 | 深圳市华星光电半导体显示技术有限公司 | External hanging type touch sensing device and manufacturing method thereof |
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