CN109634462B - Touch conductive film and manufacturing method thereof, touch module and touch display device - Google Patents
Touch conductive film and manufacturing method thereof, touch module and touch display device Download PDFInfo
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- CN109634462B CN109634462B CN201811517695.5A CN201811517695A CN109634462B CN 109634462 B CN109634462 B CN 109634462B CN 201811517695 A CN201811517695 A CN 201811517695A CN 109634462 B CN109634462 B CN 109634462B
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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
Abstract
The invention relates to a touch conductive film, a manufacturing method thereof, a touch module and a touch display device. The touch conductive film comprises: a first substrate; the touch electrode pattern is arranged on the first substrate and provided with a hollow area; the first prism structure is arranged on the first substrate and located in the hollow area, and the first prism structure is used for gathering light emitted from the first substrate towards the touch electrode pattern. In the touch conductive film, according to the refraction and reflection principle of light, the direction of the light is corrected by using the first prism structure, so that the front side of the light is concentrated, the light which is not utilized outside the visual angle in the traditional touch display device can be recycled, and the effect of increasing the brightness of the touch display device is achieved.
Description
Technical Field
The invention relates to the technical field of electronic equipment, in particular to a touch conductive film, a manufacturing method thereof, a touch module and a touch display device.
Background
The touch display device has a human-computer interaction characteristic, and is widely applied to electronic equipment such as smart phones and tablet computers. The touch display device generally includes a display module, a touch module and a protective cover plate, wherein the touch module can be disposed between the display module and the protective cover plate to form an external touch display device, the touch module can also be disposed in the display module to form an include or an oncell touch display device, and when the display module is lighted, light sequentially passes through the touch module and the protective cover plate and then reaches human eyes. The light transmittance and the light emitting direction of the touch display device affect the brightness of the touch display device, and the brightness of the touch display device directly affects the visual effect.
Disclosure of Invention
Accordingly, it is desirable to provide a touch conductive film with better brightness, a method for manufacturing the same, a touch module and a touch display device.
A touch conductive film, comprising:
a first substrate;
the touch electrode pattern is arranged on the first substrate and provided with a hollow area; and
the first prism structure is arranged on the first substrate and located in the hollow area, and the first prism structure is used for gathering light emitted from the first substrate towards the touch electrode pattern.
In the touch conductive film, according to the refraction and reflection principle of light, the direction of the light is corrected by using the first prism structure, so that the front side of the light is concentrated, the light which is not utilized outside the visual angle in the traditional touch display device can be recycled, and the effect of increasing the brightness of the touch display device is achieved.
In one embodiment, the touch electrode pattern includes a plurality of touch electrodes arranged in parallel at intervals, and an area between two adjacent touch electrodes is the hollow area.
In one embodiment, the touch electrode pattern includes a plurality of electrode pairs arranged in parallel at intervals, the electrode pairs include a first touch electrode and a second touch electrode that are matched with each other to determine a touch coordinate, and an area between two adjacent electrode pairs is the hollow area.
In one embodiment, the touch electrode pattern includes a first electrode layer and a second electrode layer located on the same side of the first substrate, the first electrode layer includes a plurality of first touch electrodes arranged in parallel at intervals, the second electrode layer includes a plurality of second touch electrodes arranged in parallel at intervals, the second touch electrodes intersect with the first touch electrodes, an insulating block located between the second touch electrodes and the first touch electrodes is arranged at an intersection position of the second touch electrodes and the first touch electrodes, and areas between two adjacent first touch electrodes and between two adjacent second touch electrodes are the hollow area;
in one embodiment, the touch electrode pattern includes a first electrode layer and a second electrode layer, and the first electrode layer and the second electrode layer are respectively disposed on a light incident side and a light emitting side of the first substrate; the first electrode layer comprises a plurality of first touch electrodes arranged in parallel at intervals, the second electrode layer comprises a plurality of second touch electrodes arranged in parallel at intervals, the projections of the second touch electrodes and the first touch electrodes on the first substrate are intersected, the area between every two adjacent first touch electrodes is a first hollowed-out area, the area between every two adjacent second touch electrodes is a second hollowed-out area, and the first prism structure is arranged in the second hollowed-out area.
In one embodiment, the touch conductive film further includes a second substrate, a second prism structure, and an adhesive layer, the second prism structure is disposed on the second substrate, one side of the second substrate having the second prism structure is connected to the light incident side of the first substrate through the adhesive layer, the second prism structure is configured to collect light emitted from the second substrate toward the touch electrode pattern, and a projection of the second prism structure and the first prism structure on the first substrate is not overlapped, so that brightness of the emitted light is uniform.
In one embodiment, the first prism structure has a triangular or semicircular cross-sectional shape, and the second prism structure has a triangular or semicircular cross-sectional shape.
A touch module comprises two touch conductive films, wherein a touch electrode pattern of one touch conductive film is connected with a light incident side of a first substrate of the other touch conductive film through an adhesive layer;
the touch electrode patterns of the two layers of touch conductive films are respectively a first touch electrode pattern and a second touch electrode pattern, the first touch electrode pattern comprises a plurality of first touch electrodes spaced in parallel, the second touch electrode pattern comprises a plurality of second touch electrodes spaced in parallel, projections of the first touch electrodes and the second touch electrode patterns on the first substrate are intersected, an area between two adjacent first touch electrodes is a first hollow area, an area between two adjacent second touch electrodes is a second hollow area, and the first prism structure is arranged in each of the first hollow area and the second hollow area.
A touch display device comprises a display module, a protective cover plate and the touch conductive film, wherein the display module and the protective cover plate are arranged in a stacked mode, and the touch conductive film is arranged between the display module and the protective cover plate or in the display module.
A manufacturing method of a touch conductive film comprises the following steps:
providing a first substrate;
forming a first layer to be imprinted on a first substrate;
providing an imprinting mold, and forming a first prism structure and a first imprinting groove on a first layer to be imprinted by adopting an imprinting mode; and
the method includes the steps that a touch electrode pattern with a hollow area for accommodating a first prism structure is formed on a first substrate, wherein the touch electrode pattern is located in a first impressing groove, the first prism structure is located in the hollow area, and the first prism structure is used for gathering light emitted from the first substrate towards the touch electrode pattern.
In one embodiment, the step of forming the touch electrode pattern having the hollow area for accommodating the first prism structure on the first substrate includes the following steps:
forming a conductive layer which fills the first imprinting groove and covers the first prism structure on the first substrate;
and patterning the conductive layer by adopting exposure, development and etching processes to obtain a touch electrode pattern with a hollow area.
In one embodiment, the method further comprises the following steps:
providing a second substrate;
providing an imprinting mould, and forming a second layer to be imprinted on a second substrate;
forming a second prism structure and a second imprinting groove on the second layer to be imprinted by adopting an imprinting mode;
forming a bonding agent which fills the second impressing groove and covers the second prism structure on one side of the second substrate with the second prism structure, and bonding one side of the second substrate with the bonding agent to one side of the first substrate far away from the first prism structure;
and curing to cure the adhesive to form the bonding layer.
Drawings
Fig. 1 is a schematic cross-sectional view of a touch display device according to an embodiment of the invention;
fig. 2 is a schematic cross-sectional view of a touch display device according to another embodiment of the invention;
fig. 3 is a schematic top view of a touch conductive film according to an embodiment of the invention;
FIG. 4 is a schematic view of FIG. 3 with the first prism structure removed;
fig. 5 is a schematic cross-sectional view of a touch conductive film according to an embodiment of the invention, the schematic cross-sectional view corresponds to the line a-a in fig. 3;
fig. 6 is a schematic cross-sectional view of a touch conductive film according to another embodiment of the invention, the schematic cross-sectional view corresponds to the line a-a in fig. 3;
fig. 7 is a schematic view of a first touch electrode and a second touch electrode of a touch module according to an embodiment of the invention;
fig. 8 is a cross-sectional view of the touch module related to fig. 7 according to an embodiment of the invention, the cross-sectional view corresponds to a line B-B in fig. 7;
fig. 9 is a cross-sectional view of the touch module related to fig. 7 according to an embodiment of the invention, the cross-sectional view corresponds to a line C-C in fig. 7;
fig. 10 is a cross-sectional view of the touch module related to fig. 7 according to an embodiment of the invention, the cross-sectional view corresponds to a line D-D in fig. 7;
fig. 11 is a cross-sectional view of a touch module according to another embodiment of the invention, the cross-sectional view corresponds to line B-B in fig. 7;
fig. 12 is a cross-sectional view of a touch module according to another embodiment of the invention, the cross-sectional view corresponds to line B-B in fig. 7;
fig. 13 is a cross-sectional view of a touch module according to another embodiment of the invention, the cross-sectional view corresponds to the line a-a in fig. 3;
fig. 14 is a flowchart of a method for manufacturing a touch conductive film according to an embodiment of the invention;
FIG. 15 is a schematic diagram of an embodiment corresponding to steps S320 and S330;
fig. 16 is a schematic view of a product obtained after completion of step S330 corresponding to fig. 15;
fig. 17 is a schematic view of another embodiment corresponding to steps S320 and S330;
fig. 18 is a schematic view of a product obtained after completion of step S330 corresponding to fig. 17;
fig. 19 is a schematic diagram of an embodiment corresponding to step S340.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1, a touch display device 10 according to an embodiment of the present invention includes a protective cover 12, a touch module 14, and a display module 16. In some embodiments, as shown in fig. 1, an adhesive layer 13 is disposed between the protective cover 12 and the touch module 14, and an adhesive layer 15 is disposed between the touch module 14 and the display module 16. In other embodiments, as shown in fig. 2, an adhesive layer 17 is disposed between the protective cover 12 and the display module 16, and the touch module 14 may also be disposed in the display module 16 to form an include or an oncell touch display device. In the touch display device 10, when the display module 16 is turned on, the light sequentially passes through the touch module 14 and the protective cover 12 to reach human eyes. Taking the viewing angles shown in fig. 1 and fig. 2 as an example, the light emitted from the display module 16 is emitted along the direction indicated by the arrow.
As shown in fig. 1, a touch panel 20 according to an embodiment of the present invention includes a protective cover 12, an adhesive layer 13, and a touch module 14.
In some embodiments, as shown in fig. 3 and 4, the touch module 14 includes a touch conductive film 100, and the touch conductive film 100 includes a first substrate 110, a touch electrode pattern 120, and a first prism structure 130. The touch electrode pattern 120 is disposed on the first substrate 110, and the touch electrode pattern 120 has a hollow area 120 a. The first prism structure 130 is disposed on the first substrate 110 and located in the hollow area 120 a. As shown in fig. 5, the first prism structures 130 are used for collecting the light emitted from the first substrate 110 toward the touch electrode pattern 120, that is, the first substrate 110 includes a light incident side 112 and a light emitting side 114 disposed opposite to each other, and the first prism structures 130 are disposed on the light emitting side 114. Taking the view angle shown in fig. 5 as an example, the light emitted from the display module 16 is emitted in the direction of the arrow, and the first prism structure 130 focuses the light beam with a larger emission angle into a light beam with a smaller divergence.
In the touch conductive film 100, according to the refraction and reflection principle of light, the first prism structure 130 is used to correct the direction of light, so that the light is concentrated on the front side, and therefore light that is not utilized outside the viewing angle in the conventional touch display device can be recycled, thereby achieving the effect of increasing the brightness of the touch display device 10.
In some embodiments, as shown in FIG. 5, the cross-sectional shape of the first prism structure 130 is triangular. In some embodiments, as shown in FIG. 6, the cross-sectional shape of the first prism structure 130 is circular.
In some embodiments, as shown in fig. 3 and 4, the touch electrode pattern 120 includes a plurality of touch electrodes 122 arranged in parallel at intervals, and an area between two adjacent touch electrodes 122 is the hollow area 120 a. In some embodiments, the touch conductive film 100 further includes signal lines 140 disposed around the touch electrode pattern 120, the number of the signal lines 140 is the same as the number of the touch electrodes 122, and the signal lines 140 are connected in a one-to-one correspondence, and one end of the signal lines 140 away from the touch electrodes 122 is used for being connected to a flexible circuit board, so that the touch signal of the touch electrode pattern 120 can be transmitted to a main board of the touch display device 10 through the flexible circuit board.
In some embodiments, the first substrate 110 is a thin film transparent substrate such as PET (Polyethylene terephthalate), COP (Cyclo Olefin Polymer), and the like. The touch electrode pattern 120 is located in a display area of the touch display device 10, the touch electrode pattern 120 is made of a transparent conductive material such as ITO, the signal line 140 is located in a frame area of the touch display device 10, and the signal line 140 is made of a conductive material such as silver paste and copper. In some embodiments, the first prism structure 130 is located in the display area of the touch display device 10, the first prism structure 130 is a transparent structure, and the first prism structure 130 is made of a transparent conductive material with a high refractive index (refractive index n is greater than or equal to 1.58). In some embodiments, the first prism structure 130 is made of PET. In some embodiments, the first prism structure 130 is integrally formed with the first substrate 110.
In some embodiments, as shown in fig. 7 and 8, the touch module 14 includes two stacked touch conductive films 100, and one side of one touch conductive film 100 having the touch electrode pattern 120 is connected to the light incident side 112 of the first substrate 110 of the other touch conductive film 100 through the adhesive layer 200. The touch electrode patterns 120 of the two-layer touch conductive film 100 are a first touch electrode pattern 122 and a second touch electrode pattern 124, respectively, the first touch electrode pattern 122 includes a plurality of first touch electrodes 1222 spaced in parallel, the second touch electrode pattern 124 includes a plurality of second touch electrodes 1242 spaced in parallel, and projections of the first touch electrodes 1222 and the second touch electrode pattern 124 on the first substrate 110 intersect with each other. In the view shown in fig. 7, the first touch electrode 1222 is perpendicular to the projection of the second touch electrode pattern 124 on the first substrate 110.
The area between two adjacent first touch electrodes 1222 is a first hollow area 1224, the area between two adjacent second touch electrodes 1242 is a second hollow area 1244, the first hollow area 1224 and the second hollow area 1244 are both provided with the first prism structure 130, that is, one first prism structure 130 is provided between two adjacent first touch electrodes 1222, and one first prism structure 130 is also provided between two adjacent second touch electrodes 1242.
Specifically, as shown in fig. 8, fig. 8 is a cross-sectional schematic view of the touch module related to fig. 7, where the cross-sectional schematic view corresponds to a line B-B in fig. 7, the line B-B passes through an intersection position of the first touch electrode 1222 and the second touch electrode 1242, so that the plurality of first touch electrodes 1222 and the plurality of second touch electrodes 1242 can be seen simultaneously in fig. 8, the plurality of first touch electrodes 1222 is directly opposite to the plurality of second touch electrodes 1242, and the line B-B passes through an intersection position of the first hollow-out areas 1224 and the second hollow-out areas 1244, so that the plurality of first hollow-out areas 1224 and the plurality of second hollow-out areas 1244 can be seen simultaneously in fig. 8, and the plurality of first prism structures 130 located on different touch conductive films 100 and directly opposite to each other can be seen.
As shown in fig. 9, fig. 9 is a cross-sectional view of the touch module related to fig. 7, the cross-sectional view corresponds to a line C-C in fig. 7, the line C-C passes through only one first touch electrode 1222, so that only one strip-shaped first touch electrode 1222 can be seen in fig. 9, but a plurality of second touch electrodes 1242, second hollow-out regions 1244 located between the plurality of second touch electrodes 1242, and the first prism structure 130 can be seen.
As shown in fig. 10, fig. 10 is a cross-sectional view of the touch module related to fig. 7 according to an embodiment of the invention, the cross-sectional view corresponds to a line D-D in fig. 7, the line D-D only passes through one second touch electrode 1242, so that only one strip-shaped second touch electrode 1242 can be seen in fig. 10, but a plurality of first touch electrodes 1222, first hollow-out regions 1224 located between the plurality of first touch electrodes 1222, and first prism structures 130 can be seen.
In some embodiments, as shown in fig. 11, the touch module 14 includes a touch conductive film 100, the touch electrode pattern 120 of the touch conductive film 100 includes a first electrode layer 122 and a second electrode layer 124 located on the same side of the first substrate 110, the first electrode layer 122 includes a plurality of first touch electrodes 1222 arranged in parallel at intervals, the second electrode layer 124 includes a plurality of second touch electrodes 1242 arranged in parallel at intervals, the second touch electrodes 1242 intersect with the first touch electrodes 1222, and the intersecting position of the second touch electrodes 1242 and the first touch electrodes 1222 is provided with an insulating block 126 located between the second touch electrodes 1242 and the first touch electrodes 1222. The areas between two adjacent first touch electrodes 1222 and between two adjacent second touch electrodes 1242 are the hollow areas 120a, and the first prism structures 130 are disposed in the hollow areas 120 a.
In some embodiments, as shown in fig. 12, the touch module 14 includes a touch conductive film 100, the touch electrode pattern 120 of the touch conductive film 100 includes a first electrode layer 122 and a second electrode layer 124, and the first electrode layer 122 and the second electrode layer 124 are respectively disposed on the light incident side 112 and the light exiting side 114 of the first substrate 110. The first electrode layer 122 includes a plurality of first touch electrodes 1222 arranged in parallel at intervals, the second electrode layer 124 includes a plurality of second touch electrodes 1242 arranged in parallel at intervals, the second touch electrodes 1242 intersect with the projections of the first touch electrodes 1222 on the first substrate 110, an area between two adjacent first touch electrodes 1222 is a first hollow area 1224, an area between two adjacent second touch electrodes 124 is a second hollow area 1244, and the first prism structure 130 is disposed in the second hollow area 1244.
In some embodiments, the touch electrode pattern 120 includes electrode pairs arranged in parallel at intervals, the electrode pairs include a first touch electrode and a second touch electrode that are matched with each other to determine a touch coordinate, and an area between two adjacent electrode pairs is the hollow area 120 a. That is, the touch electrode pattern 120 is a single-layer structure, and at this time, the first touch electrode and the second touch electrode may be both comb-shaped, and the first touch electrode and the second touch electrode are embedded with each other.
In some embodiments, as shown in fig. 13, the touch conductive film 100 further includes a second substrate 150, a second prism structure 160 and an adhesive layer 170, the second prism structure 160 is disposed on the second substrate 150, one side of the second substrate 150 having the second prism structure 160 is connected to the light incident side 112 of the first substrate 110 through the adhesive layer 170, and the second prism structure 160 is used for collecting light emitted from the second substrate 150 toward the touch electrode pattern 120. The projections of the second prism structure 160 and the first prism structure 130 on the first substrate 110 are not overlapped (staggered), so that the brightness of the emergent light is uniform, and the overall brightness and uniformity of the touch display device 10 are improved.
In some embodiments, the first prism structure 130 has a triangular or semi-circular cross-sectional shape and the second prism structure 160 has a triangular or semi-circular cross-sectional shape. In some embodiments, the first prism structure 130 and the second prism structure 160 have the same cross-sectional shape, both being triangular or semi-circular. As shown in fig. 13, in some embodiments, the first prism structure 130 and the second prism structure 160 have different cross-sectional shapes, the cross-sectional shape of the first prism structure 130 is a triangle, and the cross-sectional shape of the second prism structure 160 is a semicircle.
In some embodiments, the material of the second substrate 150 is the same as the material of the first substrate 110, and the material of the first prism structure 130 is the same as the material of the second prism structure 160.
As shown in fig. 14, a method for manufacturing a touch conductive film according to an embodiment of the present invention includes the following steps:
in step S310, a first substrate is provided.
In step S320, a first layer to be imprinted is formed on the first substrate.
Step S330, providing an imprinting mold, and forming a first prism structure and a first imprinting groove on the first layer to be imprinted by imprinting.
As shown in fig. 15, after the first layer to be imprinted 130a is formed on the first substrate 110, the imprinting mold 40 having the semicircular groove 42 is used to roll and imprint on the first layer to be imprinted 130a, so as to obtain the product shown in fig. 16, where the product shown in fig. 16 includes the substrate 110, and the first prism structure 130 and the first imprinting groove 132 that are disposed on the substrate 110. In some embodiments, the first layer to be imprinted 130a is formed on the first substrate 110 by coating, and then the first layer to be imprinted 130a is pre-cured to obtain a semi-cured first layer to be imprinted 130a, and then imprinting is performed. In some embodiments, the semi-cured first layer to be imprinted 130a may also be directly attached to the first substrate 110, and then imprinted. After the imprinting is completed, a curing process is performed to cure the first prism structure 130.
As shown in fig. 17, after the first layer to be imprinted 130a is formed on the first substrate 110, the imprinting mold 50 having the triangular groove 52 is used to roll and imprint on the first layer to be imprinted 130a, so as to obtain the product shown in fig. 18, where the product shown in fig. 18 includes the substrate 110, and the first prism structure 130 and the first imprinting groove 132 that are disposed on the substrate 110.
Step S340, forming a touch electrode pattern having a hollow area for accommodating a first prism structure on the first substrate, wherein the touch electrode pattern is located in the first imprinting groove, the first prism structure is located in the hollow area, and the first prism structure is used for collecting light emitted from the first substrate toward the touch electrode pattern.
In some embodiments, in step S340, the following steps are included:
step S342, a conductive layer is formed on the first substrate to fill the first imprint trench and cover the first prism structure.
In step S344, the conductive layer is patterned by exposure, development, and etching processes to obtain a touch electrode pattern having a hollow area, where the touch electrode pattern is located in the first imprinting groove, and the first prism structure is located in the hollow area.
As shown in fig. 19, the product shown in fig. 19 includes a substrate 110, a first prism structure 130 and a first stamping groove 132 disposed on the substrate 110, and a conductive layer 120b filled in the first stamping groove 132 and covering the first prism structure 130. In some embodiments, the conductive layer 120b may be formed by plating. Then, the conductive layer 120b is patterned by exposure, development and etching processes, that is, the conductive layer 120b is patterned by a photolithography process, so as to obtain the touch electrode pattern 120 having the hollow area 120a as shown in fig. 13.
In some embodiments, the method for manufacturing a touch conductive film further includes the following steps:
in step S350, a second substrate is provided.
In step S360, a second layer to be imprinted is formed on the second substrate.
Step S370, providing an imprinting mold, and forming a second prism structure and a second imprinting groove on the second layer to be imprinted by an imprinting method.
Step S380, forming an adhesive filling the second stamping groove and covering the second prism structure on the side of the second substrate having the second prism structure, and adhering the side of the second substrate having the adhesive to the side of the first substrate away from the first prism structure.
In step S390, a curing process is performed to cure the adhesive to form an adhesive layer.
In some embodiments, the process for forming the second layer to be imprinted and the second prism structure is the same as the process for forming the first layer to be imprinted and the first prism structure, and a description thereof will not be repeated.
In some embodiments, the first prism structure and the second prism structure may be formed on the first substrate, the side of the second substrate having the second prism structure is disposed on the side of the first substrate away from the first prism structure through the adhesive layer, and the touch conductive pattern is formed on the side of the first substrate having the first prism structure.
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 invention, 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 inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A touch conductive film, comprising:
a first substrate;
the touch electrode pattern is arranged on the first substrate and provided with a hollow area; and
the first prism structure is arranged on the first substrate and located in the hollow area, and the first prism structure is used for gathering light emitted from the first substrate towards the touch electrode pattern.
2. The touch conductive film of claim 1, wherein the touch electrode pattern comprises a plurality of touch electrodes arranged in parallel at intervals, and an area between two adjacent touch electrodes is the hollow area.
3. The touch conductive film according to claim 1, wherein the touch electrode pattern comprises a plurality of electrode pairs arranged in parallel at intervals, the electrode pairs comprise a first touch electrode and a second touch electrode which are matched with each other to determine touch coordinates, and an area between two adjacent electrode pairs is the hollow area;
or the touch electrode pattern comprises a first electrode layer and a second electrode layer which are positioned on the same side of the first substrate, the first electrode layer comprises a plurality of first touch electrodes which are arranged in parallel at intervals, the second electrode layer comprises a plurality of second touch electrodes which are arranged in parallel at intervals, the second touch electrodes are intersected with the first touch electrodes, an insulating block positioned between the second touch electrodes and the first touch electrodes is arranged at the intersection position of the second touch electrodes and the first touch electrodes, and the area between two adjacent first touch electrodes and the area between two adjacent second touch electrodes are the hollow area;
or the touch electrode pattern comprises a first electrode layer and a second electrode layer, and the first electrode layer and the second electrode layer are respectively arranged on the light incident side and the light emergent side of the first substrate; the first electrode layer comprises a plurality of first touch electrodes arranged in parallel at intervals, the second electrode layer comprises a plurality of second touch electrodes arranged in parallel at intervals, the projections of the second touch electrodes and the first touch electrodes on the first substrate are intersected, the area between every two adjacent first touch electrodes is a first hollowed-out area, the area between every two adjacent second touch electrodes is a second hollowed-out area, and the first prism structure is arranged in the second hollowed-out area.
4. The touch conductive film according to any one of claims 1 to 3, further comprising a second substrate, a second prism structure and an adhesive layer, wherein the second prism structure is disposed on the second substrate, one side of the second substrate having the second prism structure is connected to the light incident side of the first substrate through the adhesive layer, the second prism structure is configured to collect light emitted from the second substrate toward the touch electrode pattern, and a projection of the second prism structure and the first prism structure on the first substrate is not coincident, so that a brightness of the emitted light is uniform.
5. The touch conductive film of claim 4, wherein the first prism structure has a triangular or semicircular cross section, and the second prism structure has a triangular or semicircular cross section.
6. A touch module comprising two touch conductive films according to claim 1, wherein a touch electrode pattern of one of the touch conductive films is connected to a light incident side of the first substrate of the other touch conductive film through an adhesive layer;
the touch electrode patterns of the two layers of touch conductive films are respectively a first touch electrode pattern and a second touch electrode pattern, the first touch electrode pattern comprises a plurality of first touch electrodes spaced in parallel, the second touch electrode pattern comprises a plurality of second touch electrodes spaced in parallel, projections of the first touch electrodes and the second touch electrode patterns on the first substrate are intersected, an area between two adjacent first touch electrodes is a first hollow area, an area between two adjacent second touch electrodes is a second hollow area, and the first prism structure is arranged in each of the first hollow area and the second hollow area.
7. A touch display device, comprising a display module and a protective cover plate stacked together, and the touch conductive film according to any one of claims 1 to 5, the touch conductive film being disposed between the display module and the protective cover plate or disposed within the display module.
8. A manufacturing method of a touch conductive film is characterized by comprising the following steps:
providing a first substrate;
forming a first layer to be imprinted on a first substrate;
providing an imprinting mold, and forming a first prism structure and a first imprinting groove on a first layer to be imprinted by adopting an imprinting mode; and
the method includes the steps that a touch electrode pattern with a hollow area for accommodating a first prism structure is formed on a first substrate, wherein the touch electrode pattern is located in a first impressing groove, the first prism structure is located in the hollow area, and the first prism structure is used for gathering light emitted from the first substrate towards the touch electrode pattern.
9. The method for manufacturing a touch conductive film according to claim 8, wherein the step of forming the touch electrode pattern having the hollow area for accommodating the first prism structure on the first substrate comprises the steps of:
forming a conductive layer which fills the first imprinting groove and covers the first prism structure on the first substrate;
and patterning the conductive layer by adopting exposure, development and etching processes to obtain a touch electrode pattern with a hollow area.
10. The method for manufacturing a touch conductive film according to claim 8 or 9, further comprising the steps of:
providing a second substrate;
providing an imprinting mould, and forming a second layer to be imprinted on a second substrate;
forming a second prism structure and a second imprinting groove on the second layer to be imprinted by adopting an imprinting mode;
forming a bonding agent which fills the second impressing groove and covers the second prism structure on one side of the second substrate with the second prism structure, and bonding one side of the second substrate with the bonding agent to one side of the first substrate far away from the first prism structure;
and curing to cure the adhesive to form the bonding layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811517695.5A CN109634462B (en) | 2018-12-12 | 2018-12-12 | Touch conductive film and manufacturing method thereof, touch module and touch display device |
Applications Claiming Priority (1)
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| CN112817489B (en) * | 2021-03-08 | 2024-03-15 | 京东方科技集团股份有限公司 | Touch substrate and display device |
| CN114281218A (en) * | 2022-01-17 | 2022-04-05 | 深圳莱宝高科技股份有限公司 | Touch screen and touch display screen |
| WO2023169256A1 (en) * | 2022-03-10 | 2023-09-14 | 芜湖美的厨卫电器制造有限公司 | Touch-control display panel and assembly process therefor, and electrical appliance device |
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