CN109388289B - Touch panel and manufacturing method thereof - Google Patents
Touch panel and manufacturing method thereof Download PDFInfo
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- CN109388289B CN109388289B CN201811285218.0A CN201811285218A CN109388289B CN 109388289 B CN109388289 B CN 109388289B CN 201811285218 A CN201811285218 A CN 201811285218A CN 109388289 B CN109388289 B CN 109388289B
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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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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
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- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
Abstract
The present application relates to a touch panel and a method of manufacturing the touch panel, the touch panel includes: a spherical cover plate, said spherical cover plate comprising a chamber; the touch polyhedron is arranged in the cavity of the spherical cover plate; the touch polyhedron comprises a polyhedron stencil and a touch sensing layer which is arranged on the surface of the polyhedron stencil after being reversely folded. Above-mentioned touch panel sets up on the polyhedron masterplate through turning over the touch-control sensing layer, and it puts into the cavity of spherical apron to make spherical apron surface have the touch-control function, simple structure, the manufacturing of being convenient for.
Description
Technical Field
The present invention relates to the field of semiconductors, and in particular, to a touch panel and a method for manufacturing the touch panel.
Background
When a 3D spherical touch panel is manufactured, in order to enable the surface of the spherical cover plate to have a touch function, a traditional implementation method is to make the touch sensing film into a dumbbell shape, a radial shape, an olive shape or the like which are matched with the surface of a sphere, and then attach the touch sensing film to the surface of the spherical cover plate.
Disclosure of Invention
Accordingly, it is desirable to provide a touch panel and a method for manufacturing the touch panel, which can easily realize the touch function of the spherical cover plate.
A touch panel, comprising:
a spherical cover plate, said spherical cover plate comprising a chamber;
the touch polyhedron is arranged in the cavity of the spherical cover plate;
the touch polyhedron comprises a polyhedron stencil and a touch sensing layer which is arranged on the surface of the polyhedron stencil after being reversely folded.
Above-mentioned touch panel sets up on the polyhedron masterplate through turning over the touch-control sensing layer, and it puts into the cavity of spherical apron to make spherical apron surface have the touch-control function, simple structure, the manufacturing of being convenient for.
In one embodiment, the touch sensing layer comprises a sensor film, an optical cement and a flexible circuit board, wherein the sensor film is matched with the shape of the unfolded surface of the polyhedral template;
the optical film is attached to the sensor film, and the flexible circuit board is connected with the sensing lines.
In one embodiment, water gel is filled between the touch polyhedron and the spherical cover plate.
In one embodiment, the sensing capability of the touch polyhedron is determined according to the distance between each position of the touch polyhedron and the spherical cover plate.
In one embodiment, the polyhedron stencil is a regular polyhedron.
A method of manufacturing a touch panel includes:
preparing a polyhedral template;
preparing a touch sensing layer according to the polyhedral template;
reversely folding the touch sensing layer and arranging the touch sensing layer on the surface of the polyhedral template to obtain a touch polyhedron;
and arranging the touch polyhedron in a cavity of the spherical cover plate.
According to the manufacturing method of the touch panel, the touch sensing layer is arranged on the polyhedral template through reverse folding and then is placed in the cavity of the spherical cover plate, so that the surface of the spherical cover plate has a touch function, the structure is simple, and the production and the manufacturing are convenient.
In one embodiment, the preparing a touch sensing layer according to the polyhedral template includes:
disposing a sensing line on the sensor film;
punching the sensor film to enable the shape of the sensor film to be matched with the shape of the unfolded surface of the polyhedral template;
attaching optical cement to the sensor film;
and connecting the flexible circuit board with the sensing line.
In one embodiment, the method further comprises;
and filling water gel between the touch polyhedron and the spherical cover plate.
In one embodiment, the method further comprises;
and adjusting the sensing capability of the touch polyhedron according to the distance between each position of the touch polyhedron and the spherical cover plate.
In one embodiment, the polyhedron stencil is a regular polyhedron.
Drawings
FIG. 1 is a schematic diagram of an embodiment of a touch panel;
FIG. 2 is a schematic diagram illustrating a structure of a touch polyhedron in one embodiment;
FIG. 3 is a schematic diagram of an embodiment of a touch sensing layer;
FIG. 4 is a flowchart illustrating a method for manufacturing a touch panel according to an embodiment;
FIG. 5 is a flow chart illustrating the fabrication of a touch sensing layer according to a polyhedral template in one embodiment;
fig. 6 is a flowchart illustrating a method for manufacturing a touch panel according to another embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application 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 present application and are not intended to limit the present application.
Fig. 1 is a schematic structural diagram of a touch panel in an embodiment, and as shown in fig. 1, a touch panel 10 includes: a spherical cover plate 100, the spherical cover plate 100 comprising a chamber; the touch polyhedron 200 is disposed in the cavity of the spherical cover plate 100.
Specifically, the touch panel 10 may be a 3D spherical capacitive touch panel, and the touch panel 10 includes a spherical cover 100 and a touch polyhedron 200. The spherical cover plate 100 is a 3D arc-shaped touch screen cover plate, and the specific specification and material of the spherical cover plate may be determined according to the actual requirements of the touch panel, for example, the spherical cover plate 100 may be made of glass, Polyethylene terephthalate (PET), polymethacrylic Plastic (PMMA), or the like. The spherical cover plate 100 includes a cavity, the shape and volume of which are related to the shape of the spherical cover plate 100 and the thickness of the spherical cover plate 100, and a touch polyhedron 200 is disposed in the cavity of the spherical cover plate 100, and the touch polyhedron 200 is used for realizing the touch sensing capability of the touch panel 10. Meanwhile, in order to ensure the touch effect on the spherical cover plate 100, the specific distance between the surface of the touch polyhedron 200 and the spherical cover plate 100 may be determined according to parameters such as the sensing capability of the touch sensing layer 200 and the specification of the spherical cover plate 100. Transparent substances such as water gel and the like can be filled between the touch polyhedron 200 and the spherical cover plate 100 to fix the touch polyhedron 200 in the cavity of the spherical cover plate 100.
Further, fig. 2 is a schematic structural diagram of the touch polyhedron 200 in an embodiment, and as shown in fig. 2, the touch polyhedron 200 includes a polyhedron template 220 and a touch sensing layer 240 disposed on the surface of the polyhedron template 220 after being reversely folded. The polyhedral stencil 220 generally includes 5 or more than 5 surfaces, the touch sensing layer 240 is disposed on the polyhedral stencil 220, and the touch sensing layer 240 and the spherical cover plate 100 form a capacitive touch panel. The touch sensing layer 240 is specifically attached to the polyhedral template 220 by reverse folding, the touch sensing layer 240 can be cut correspondingly according to the surface unfolding shape of the polyhedral template 220 before reverse folding, and the area of the cut touch sensing layer 240 should be larger than the area of the surface unfolding shape of the polyhedral template 220 or consistent with the surface unfolding shape of the polyhedral template 220, so that a better attaching effect between the touch sensing layer 240 and the polyhedral template 220 is obtained.
The touch panel 100 is arranged on the polyhedral template 220 by reversely folding the touch sensing layer 240, and then the touch sensing layer is placed in the cavity of the spherical cover plate 100, so that the surface of the spherical cover plate 100 has a touch function, and the touch panel is simple in structure and convenient to produce and manufacture.
In one embodiment, the polyhedral template 220 is a regular polyhedron.
Specifically, since the distance between the surface of the touch polyhedron 200 and the spherical cover plate 100 may affect the touch effect of the touch panel 10, the polyhedron template 220 may be set as a regular polyhedron to prevent the inconsistent touch effect caused by too large difference between the distances between different positions of the surface of the touch polyhedron 200 and the spherical cover plate 100. Meanwhile, as the number of the faces of the polyhedral template 220 is larger, the difficulty of preparing and reversely folding and attaching the touch sensing layer 240 is increased, in a preferred embodiment, a square template can be used as the polyhedral template 220, so that the distance difference between each position of the surface of the touch polyhedral and the spherical cover plate is kept small on the premise of reducing the manufacturing difficulty as much as possible, and a better touch effect is achieved.
FIG. 3 is a schematic diagram illustrating the structure of the touch sensing layer 240 in one embodiment, and in one embodiment, as shown in FIG. 3, the touch sensing layer 240 includes a sensor film 242, an optical adhesive 244 and a flexible circuit board 246, which are matched with the shape of the extended surface of the polyhedral template 220; the sensor film 242 is provided with a sensing line 243, the optical adhesive 244 is attached to the sensor film 242, and the flexible circuit board 246 is connected to the sensing line 243.
Specifically, the touch sensing layer 240 specifically includes a sensor Film (Film)242, an optical Adhesive (OCA) 244, and a Flexible Printed Circuit (FPC) 246. A sensing line (Sensor pattern)243 is disposed on the Sensor film 242 to form a flexible sensing layer, the sensing line 243 may be made of materials such as Indium Tin Oxide (ITO), metal mesh, and silver nanowires, the shape, specification, and distribution density of the sensing line 243 disposed on the Sensor film 242 may be determined according to the actual requirements of the touch panel, a connection line is reserved on the sensing line 243, and the connection line of the sensing line 243 is electrically connected to the pins of the flexible circuit board 246, so as to implement transmission of a sensing signal and control of the sensing line. The shape of the sensor film 242 matches the shape of the surface of the polyhedral template 220, so that the sensor film can completely cover the surface of the polyhedral template 220 after being reversely folded. The sensor film 242 is further bonded with an optical adhesive 244, and the optical adhesive 244 may be specifically bonded on a surface of the sensor film 242 that faces the polyhedral mold 220 after being folded back.
In one embodiment, based on the structure of the above embodiment, the water gel is filled between the touch polyhedron 200 and the spherical cover plate 100.
Specifically, in the touch panel, an Optical Clear Resin (OCR) may be filled between the touch polyhedron 200 and the spherical cover plate 100, and the OCR is a glue using water as a solvent or a dispersion medium, is generally colorless and transparent, and is suitable for an adhesive for an Optical element. The water gel has fluidity, and is cured by illumination and other modes after being filled between the spherical cover plate 200 and the touch polyhedron 100, so that the fixation of the touch polyhedron 200 in the cavity of the spherical cover plate 100 and the attachment of the touch polyhedron 200 and the spherical cover plate 100 are realized, and the water gel is attached to the spherical cover plate 100 and has the advantages of higher light transmittance, good bonding strength, small curing shrinkage rate, yellowing resistance and the like. It is understood that other media meeting the requirement of attaching the capacitive touch panel may be used to fill between the touch polyhedron 200 and the spherical cover plate 100, and is not limited to the water gel in the embodiment.
In one embodiment, the sensing capability of the touch polyhedron is determined according to the distance between each position of the touch polyhedron and the spherical cover plate.
Specifically, in the touch panel, since the shape and size of the touch polyhedron 200 and the position of the touch polyhedron disposed in the cavity of the spherical cover 100 all affect the sensing effect of the touch polyhedron surface due to factors such as position, the sensing capability of each position of the touch polyhedron 200 needs to be adjusted, so that the spherical cover 100 can obtain a more uniform touch effect. When the touch polyhedron 200 is disposed in the spherical cover 100, the distance between each position of the surface of the touch polyhedron 200 and the surface of the spherical cover 100 is calculated, so as to adjust the sensing capability of each position of the surface of the touch polyhedron, the sensing capability may include parameters such as touch sensing sensitivity, and the sensing capability may be specifically adjusted by the IC firmware of the touch polyhedron 200, which may be generally stored in the flexible circuit board 246 of the touch polyhedron 200. After the sensing capability of each position of the touch polyhedron 200 is adjusted, a consistent touch effect can be achieved at each position of the surface of the spherical cover plate 100.
Fig. 4 is a flowchart illustrating a manufacturing method of a touch panel according to an embodiment, in which the manufacturing method of the touch panel includes the following steps:
step S510: and preparing a polyhedral template.
Step S530: and preparing a touch sensing layer according to the polyhedral template.
Step S550: and reversely folding the touch sensing layer and arranging the touch sensing layer on the surface of the polyhedral template to obtain a touch polyhedron.
Step S570: and arranging the touch polyhedron in the cavity of the spherical cover plate.
Specifically, in order to implement the touch function of the spherical cover plate to manufacture the 3D spherical capacitive touch panel, a three-dimensional touch sensing polyhedron needs to be arranged in the spherical cover plate, a template of the touch polyhedron is firstly manufactured, the polyhedron template is used for determining the shape of the touch polyhedron, and the specific shape and specification of the polyhedron template can be determined according to the condition of the spherical cover plate. The spherical cover plate may be made of glass, Polyethylene terephthalate (PET), polymethacrylic Plastic (PMMA), etc., and includes a cavity into which the polyhedral template is controlled in shape and volume. Meanwhile, in order to prevent the influence of the overlarge distance between the polyhedron stencil and the spherical cover plate on the touch effect, the specific distance between the polyhedron stencil surface and the spherical cover plate can be determined according to the sensing capability of the touch sensing layer.
After the polyhedral template is prepared, a touch sensing layer is prepared according to the shape and specification of the polyhedral template, the touch sensing layer can be cut correspondingly according to the surface unfolding shape of the polyhedral template, and the area of the cut touch sensing layer is slightly larger than the area of the surface unfolding shape of the polyhedral template or is consistent with the surface unfolding shape of the polyhedral template. And after the touch sensing layer is prepared, the touch sensing layer is reversely folded, so that the touch sensing layer is changed into a three-dimensional structure with the shape consistent with that of the polyhedral template, and the touch sensing layer is attached to the surface of the polyhedral template to form a touch polyhedron. And after the touch polyhedron is obtained, the touch polyhedron is arranged in the cavity of the spherical cover plate, so that the touch sensing layer on the surface of the touch polyhedron and the spherical cover plate form a capacitive touch panel. Transparent substances such as water gel and the like can be filled between the touch polyhedron and the spherical cover plate to better fix the touch polyhedron in the cavity of the spherical cover plate.
Further, the polyhedral template generally includes 5 or more than 5 faces, but since the distance between the surface of the touch polyhedral and the spherical cover plate affects the touch effect of the touch panel, in one embodiment, the polyhedral template may be a regular polyhedron to prevent the touch effect from being inconsistent due to too large difference between different positions of the surface of the touch polyhedral and the distance between the spherical cover plate. Meanwhile, as the number of the faces of the polyhedral template is more, the difficulty of preparation and reverse folding and attaching of the touch sensing layer is increased, in a preferred embodiment, a square template can be used as the polyhedral template, so that on the premise of reducing the manufacturing difficulty as much as possible, the difference of the distance between each position of the surface of the touch polyhedral and the spherical cover plate is kept small, and a good touch effect is achieved
According to the manufacturing method of the touch panel, the touch sensing layer is arranged on the polyhedral template through reverse folding and then is placed in the cavity of the spherical cover plate, so that the surface of the spherical cover plate has a touch function, the structure is simple, and the production and the manufacturing are convenient.
Fig. 5 is a schematic flow chart illustrating the step S530 of preparing the touch sensing layer according to the polyhedral template in the method for manufacturing the touch panel according to an embodiment of the invention, as shown in fig. 5, the step S530 includes:
step S532: the sensing lines are disposed on the sensor film.
Step S534: and punching the sensor film to make the shape of the sensor film matched with the shape of the unfolded surface of the polyhedral template.
Step S536: and attaching the optical adhesive to the sensor film.
Step S538: and connecting the flexible circuit board with the sensing line.
Specifically, a Sensor Film (Film) is used as a base layer of the touch sensing layer, and a sensing line (Sensor pattern) is disposed on the Sensor Film to form a flexible sensing layer, wherein the sensing line can be made of materials such as Indium Tin Oxide (ITO), metal mesh, and nano silver wires, and the shape, specification, and distribution density of the sensing line on the Sensor Film can be determined according to the actual requirements of the touch panel, and a connection line for connecting the circuit board is reserved on the sensing line. And punching (Punch) the sensor film provided with the sensing line to enable the shape of the sensor film to be matched with the surface unfolding shape of the polyhedral template, and arranging the position to be reversely folded on the sensor film. It is understood that, in the actual manufacturing process, the sensor film may be punched according to the surface development shape of the polyhedral template, and then the sensing lines are disposed on the punched sensing film.
After the sensing circuit is arranged and the sensor film is punched and cut to match the unfolded shape of the polyhedral template, an optical Adhesive (OCA) is attached to the sensor film, the optical Adhesive can be attached to one surface of the sensor film, which faces the polyhedral template after being reversely folded, and it can be understood that the optical Adhesive can also be attached to both surfaces of the sensor film. After the optical adhesive is attached to the sensor film, connecting lines reserved for sensing lines on a Flexible Printed Circuit (FPC) are electrically connected, the Flexible Circuit receives sensing signals and controls the corresponding sensing lines through the connecting lines, so that the touch sensing layer is prepared, the prepared touch sensing layer is reversely folded, and the touch sensing layer is arranged on a polyhedron template to form a touch polyhedron.
It should be noted that the above steps S532 to S538 are only one specific embodiment of the step S530 of preparing the touch sensing layer according to the polyhedral template in the present application. The scope of the present application is not limited to the above embodiments and the specific implementation order of the sub-steps in the embodiments. Other ways of preparing the touch sensing layer according to the polyhedral template also belong to the protection scope of the present application.
Fig. 6 is a flowchart illustrating a manufacturing method of a touch panel in another embodiment, as shown in fig. 6, in one embodiment, steps S610, S630, S650, and S670 of the manufacturing method of the touch panel may be respectively the same as the corresponding steps in the above embodiment, and the manufacturing method of the touch panel in this embodiment further includes:
step S660: and adjusting the sensing capability of the touch polyhedron according to the distance between each position of the touch polyhedron and the spherical cover plate.
Specifically, after the touch polyhedron is obtained, since the distances between the positions of the surface of the touch polyhedron and the spherical cover plate are not necessarily the same, the touch effects at different positions of the surface of the spherical cover plate may be inconsistent, and even the touch is not possible due to the fact that some positions are too far away from the touch polyhedron, the sensing capability at each position of the surface of the polyhedral touch body can be adjusted, so that a more uniform touch effect can be obtained on the spherical cover plate. The distance between each part of the surface of the touch polyhedron and the spherical cover plate is calculated according to parameters such as the shape and the size of the touch polyhedron and the position arranged in the cavity of the spherical cover plate, so that the sensing capability of each position of the surface of the touch polyhedron is adjusted, the sensing capability can comprise parameters such as touch sensing sensitivity, the sensing capability can be specifically adjusted through IC firmware of the touch polyhedron, and the IC firmware can be generally stored in a flexible circuit board arranged on the touch polyhedron. After the sensing capability of each part of the touch polyhedron is adjusted, the touch polyhedron is arranged in the spherical cover plate, so that the touch function can be realized although the distances between each position of the surface of the spherical cover plate and the touch polyhedron are different.
In one embodiment, the method for manufacturing a touch panel further includes:
step S680: and filling water gel between the touch polyhedron and the spherical cover plate.
Specifically, after the touch polyhedron is arranged in the spherical cover plate, an Optical Clear Resin (OCR) can be filled between the touch polyhedron and the spherical cover plate, wherein the OCR is a glue which takes water as a solvent or a dispersion medium, is generally colorless and transparent, and is suitable for an adhesive of an Optical element. After the water gel is filled between the touch polyhedron and the spherical cover plate, the water gel can be cured in modes of visible light, Ultraviolet (UV), medium-high temperature, moisture and the like, so that the touch polyhedron and the spherical cover plate are attached, the water gel has fluidity, the cutting is not needed, the process is simple, the water gel is suitable for attaching irregular spaces between the spherical cover plate and the touch polyhedron, and the water gel is attached to have the advantages of high light transmittance, good bonding strength, small curing shrinkage rate, yellowing resistance and the like.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A touch panel, comprising:
a spherical cover plate, said spherical cover plate comprising a chamber;
the touch polyhedron is arranged in the cavity of the spherical cover plate;
the touch polyhedron comprises a polyhedron template and a touch sensing layer which is arranged on the surface of the polyhedron template after being reversely folded;
the touch control sensing layer is correspondingly cut according to the surface unfolding shape of the polyhedral template before being reversely folded, and the area of the cut touch control sensing layer is larger than the area of the surface unfolding shape of the polyhedral template or is consistent with the surface unfolding shape of the polyhedral template;
the touch sensing layer comprises a sensor film, optical cement and a flexible circuit board, wherein the shape of the sensor film is matched with that of the unfolded surface of the polyhedral template;
the optical film is attached to the sensor film, the flexible circuit board is located on the sensor film and connected with the sensing lines, and the sensing lines are located on the periphery of the flexible circuit board.
2. The touch panel of claim 1, wherein the sensing circuit further reserves a connecting line, and the connecting line of the sensing circuit is electrically connected to the pin of the flexible circuit board.
3. The touch panel of claim 1, wherein a water gel is filled between the touch polyhedron and the spherical cover plate.
4. The touch panel of claim 1, wherein the sensing capability of the touch polyhedron is determined according to a distance between each position of the touch polyhedron and the spherical cover plate.
5. The touch panel according to any one of claims 1 to 4, wherein the polyhedral template is a regular polyhedron.
6. The method for manufacturing a touch panel according to any one of claims 1 to 5, comprising:
preparing a polyhedral template;
preparing a touch sensing layer according to the polyhedral template;
reversely folding the touch sensing layer and arranging the touch sensing layer on the surface of the polyhedral template to obtain a touch polyhedron;
and arranging the touch polyhedron in a cavity of the spherical cover plate.
7. The method of claim 6, wherein preparing the touch sensing layer according to the polyhedral template comprises:
disposing a sensing line on the sensor film;
punching the sensor film to enable the shape of the sensor film to be matched with the shape of the unfolded surface of the polyhedral template;
attaching optical cement to the sensor film;
and connecting the flexible circuit board with the sensing line.
8. The method as recited in claim 6, further comprising;
and filling water gel between the touch polyhedron and the spherical cover plate.
9. The method of claim 6, further comprising;
and adjusting the sensing capability of the touch polyhedron according to the distance between each position of the touch polyhedron and the spherical cover plate.
10. The method of claim 6, wherein the polyhedral template is a regular polyhedron.
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| CN201811285218.0A CN109388289B (en) | 2018-10-31 | 2018-10-31 | Touch panel and manufacturing method thereof |
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| CN201811285218.0A CN109388289B (en) | 2018-10-31 | 2018-10-31 | Touch panel and manufacturing method thereof |
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| CN109388289B true CN109388289B (en) | 2022-04-15 |
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| CN112799539B (en) * | 2021-02-02 | 2022-08-09 | 业成科技（成都）有限公司 | Touch device and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5656922B2 (en) * | 2012-06-14 | 2015-01-21 | 日本写真印刷株式会社 | Method for manufacturing touch panel and film with conductive electrode |
| GB2531607B (en) * | 2014-10-24 | 2018-04-18 | Novalia Ltd | Article incorporating a capacitive touch device and having a non-flat surface |
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| CN1256454A (en) * | 1998-09-21 | 2000-06-14 | 株式会社华科姆 | Attitute detecting device and method, attitude detecting sensor and attitude indicating device |
| CN104598057A (en) * | 2013-10-30 | 2015-05-06 | 西安景行数创信息科技有限公司 | Spherical internal projection touch system |
| CN105983216A (en) * | 2015-03-06 | 2016-10-05 | 鸿富锦精密工业（深圳）有限公司 | Intelligent ball capable of sensing pressure and pressure sensing and feedback system |
| CN107820597A (en) * | 2016-12-12 | 2018-03-20 | 深圳市柔宇科技有限公司 | Touch-screen module and electronic equipment |
| CN107393422A (en) * | 2017-09-04 | 2017-11-24 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
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| CN109388289A (en) | 2019-02-26 |
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