CN113655912A - Touch panel, preparation method thereof and touch device - Google Patents
Touch panel, preparation method thereof and touch device Download PDFInfo
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- CN113655912A CN113655912A CN202110988999.5A CN202110988999A CN113655912A CN 113655912 A CN113655912 A CN 113655912A CN 202110988999 A CN202110988999 A CN 202110988999A CN 113655912 A CN113655912 A CN 113655912A
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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
- 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
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
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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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Abstract
The embodiment of the application provides a touch panel, a preparation method thereof and a touch device. The touch panel includes: the method comprises the following steps: a display area and a non-display area located at the periphery of the display area; the first black matrix layer is positioned in the non-display area and arranged on one side of the substrate, and comprises hollow areas arranged at intervals and a main body structure of the first black matrix layer positioned outside the hollow areas; the first electrodes positioned in the non-display area comprise first sub-electrodes, and the first sub-electrodes are arranged on one side of the exposed part of the substrate from the hollow area; a plurality of first dummy electrodes extending in the first direction are disposed between adjacent two of the first electrodes. According to the touch panel, the first sub-electrodes are arranged in the hollow-out areas corresponding to the first black matrix layers, the first black matrix layers are prevented from being broken down by generated static electricity, short circuit caused by connection of the first electrodes and the first dummy electrodes is avoided, and therefore failure of touch functions of the touch panel caused by the short circuit is avoided.
Description
Technical Field
The application relates to the technical field of touch control, in particular to a touch panel, a manufacturing method thereof and a touch device.
Background
A monolithic touch panel is a touch panel formed by sequentially forming a black matrix layer and an indium tin oxide pattern on a substrate (usually, a cover glass). The current ito pattern in a monolithic touch panel includes a plurality of laterally disposed first electrodes (e.g., sensing electrodes) and a plurality of longitudinally disposed second electrodes (e.g., driving electrodes).
However, the first electrode or the second electrode and the corresponding dummy electrode are easily short-circuited, and finally the touch function of the touch panel is failed.
Disclosure of Invention
The application provides a touch panel, a manufacturing method thereof and a touch device aiming at the defects of the existing mode, and aims to solve the technical problem that the probability of short circuit between a first electrode or a second electrode and a dummy electrode is high in the prior art.
In a first aspect, an embodiment of the present application provides a touch panel, including: a display area and a non-display area located at the periphery of the display area; the touch panel includes: the first black matrix layer is positioned in the non-display area and arranged on one side of the substrate, and comprises hollow areas arranged at intervals and a first black matrix layer main body structure positioned outside the hollow areas; a plurality of first electrodes extending in a first direction and disposed in the display region and the non-display region, wherein the first electrodes disposed in the non-display region include first sub-electrodes disposed at one side of a portion of the substrate exposed from the hollow region; a plurality of first dummy electrodes extending in a first direction, the first dummy electrodes being disposed between adjacent ones of the first electrodes.
Optionally, the first dummy electrode is disposed on a side of the first black matrix layer main body structure away from the substrate between the adjacent hollow areas.
Optionally, the first dummy electrode is disposed at one side of a portion of the substrate exposed from the hollow region.
Optionally, the first electrode located in the non-display area is disposed on one side of a portion of the substrate exposed from the hollow area.
Optionally, the touch panel further comprises: an insulating layer disposed on a side of the first electrode remote from the substrate, a side of a portion of the substrate on a side of the display area, a side of the first black matrix layer remote from the substrate, and a side of the first dummy electrode remote from the first black matrix layer; a plurality of second sensing electrodes extending along a second direction, wherein the second sensing electrodes are arranged on one side of the insulating layer far away from the substrate, and the first direction and the second direction are intersected; the protective layer is arranged on one side, far away from the insulating layer, of the second sensing electrode and one side, far away from the substrate, of the insulating layer; and the second black matrix layer is arranged on one side of the protective layer, which is far away from the insulating layer.
Optionally, the touch panel further comprises: and the plurality of second dummy electrodes extend along the second direction and are arranged on one side of the insulating layer far away from the substrate and between two adjacent second electrodes.
Optionally, the first electrode is a sensing electrode; the second electrode is a drive electrode.
In a second aspect, an embodiment of the present application provides a touch device, including the touch panel provided in any one of the first aspect of the present application.
In a third aspect, the method for manufacturing a touch panel provided in any one of the first aspect of the embodiments of the present application includes: preparing a first initial black matrix layer on one side of a substrate; patterning the first initial black matrix layer to obtain a first black matrix layer located in a non-display area, wherein the first black matrix layer comprises spaced hollow areas and a first black matrix main body structure located outside the hollow areas; preparing a plurality of first electrodes extending in a first direction in a display area and the non-display area such that a first sub-electrode included in the first electrode positioned in the non-display area is disposed at one side of a portion of the substrate exposed from the hollowed-out area, while preparing a first electrode extending in the first direction in the non-display area such that the first dummy electrode is disposed between adjacent hollowed-out areas.
Optionally, the method for manufacturing a touch panel further includes: preparing an insulating layer at the same time on a side of the first electrode away from the substrate, a side of a portion of the substrate on a side of the display area, a side of the first black matrix layer away from the substrate, and a side of the first dummy electrode away from the first black matrix layer; preparing a plurality of second sensing electrodes extending along a second direction on one side of the insulating layer far away from the substrate, wherein the first direction and the second direction intersect; preparing protective layers on one side of the second induction electrode, which is far away from the insulating layer, and one side of the insulating layer, which is far away from the substrate at the same time to obtain an intermediate substrate; and cutting an intermediate panel according with the design size from the intermediate substrate, and preparing a second black matrix layer on one side of the protective layer of the intermediate panel, which is far away from the insulating layer.
The beneficial technical effects brought by the technical scheme provided by the embodiment of the application comprise:
the first sub-electrode included by the first electrode is arranged in the hollow area of the first black matrix layer, the first black matrix layer cannot be broken down due to the discharge phenomenon generated by the electric charge accumulated on the first sub-electrode, the short circuit caused by the connection of the first electrode and the first dummy electrode can be avoided, and the touch function failure of the touch panel caused by the short circuit is further avoided.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a touch panel according to an embodiment of the present disclosure;
FIG. 2 is a partial method diagram at C of FIG. 1;
FIG. 3 is a schematic structural diagram of the first electrode in FIG. 2;
FIG. 4 is a schematic structural diagram of the first black matrix layer in FIG. 2;
FIG. 5 is a schematic structural diagram of a positional relationship between the first electrode and the first black matrix layer in FIG. 2;
FIG. 6 is a schematic structural diagram illustrating a positional relationship among the first electrode, the first black matrix layer and the first dummy electrode in FIG. 2;
fig. 7 is a schematic structural diagram of a first black matrix layer of a touch panel according to an embodiment of the present disclosure;
fig. 8 is a schematic diagram of film structures of a display area and a non-display area of a touch panel according to an embodiment of the present disclosure;
fig. 9 is a schematic view of a film structure of a non-display area of a touch panel according to an embodiment of the present disclosure;
fig. 10 is a schematic structural diagram illustrating a positional relationship between film layers in a display area and a non-display area of a touch panel according to an embodiment of the present disclosure;
FIG. 11 is a schematic structural diagram illustrating a positional relationship among the first electrode, the first black matrix layer, and the second electrode in FIG. 2;
fig. 12 is a schematic structural diagram of a touch panel provided in this embodiment of the present disclosure, when an included angle between two adjacent sides of a first electrode unit of the touch panel is 90 degrees;
FIG. 13 is a schematic structural view of the first black matrix layer in FIG. 12;
FIG. 14 is a schematic view of the structure of the first electrode of FIG. 12;
FIG. 15 is an enlarged view of a portion of FIG. 5 at D;
fig. 16 is a schematic structural diagram of a touch panel including a touch substrate and a liquid crystal panel according to an embodiment of the present disclosure;
fig. 17 is a schematic structural diagram of a touch panel including a touch substrate and an OLED panel according to an embodiment of the present disclosure;
fig. 18 is a schematic flowchart of a method for manufacturing a touch panel according to an embodiment of the present disclosure;
fig. 19 is a schematic structural diagram of a film layer after a first initial black matrix layer is formed on one side of a substrate in a touch panel manufacturing method according to an embodiment of the disclosure;
fig. 20 is a schematic diagram illustrating a film structure of a first initial black matrix layer patterned in a non-display area in a touch panel manufacturing method according to an embodiment of the present disclosure, where the first initial black matrix layer includes spaced hollow areas and a first black matrix main body structure outside the hollow areas;
fig. 21 is a schematic diagram of a film structure in which, in a display area and a non-display area of a touch panel manufacturing method provided in an embodiment of the present application, a plurality of first electrodes extending in a first direction are manufactured, so that first sub-electrodes included in the first electrodes in the non-display area are disposed on one side of a portion of a substrate exposed from a hollow area, and first electrodes extending in the first direction are manufactured in the non-display area, so that first dummy electrodes are disposed between adjacent hollow areas after the first sub-electrodes are disposed.
The reference numerals are introduced as follows:
1-a touch substrate;
2-a liquid crystal panel;
3-an OLED panel;
4-a display area;
5-a non-display area;
10-a first black matrix layer; 11-a groove;
20-a substrate;
30-a first electrode; 31-a first sub-electrode; 32-a first electrode body structure;
40-a first dummy electrode;
50-an insulating layer;
60-a second electrode;
70-a protective layer;
80-a second black matrix layer;
90-a second dummy electrode;
100-a first initial black matrix layer;
e-a boundary between the display area and the non-display area;
l1-width of groove;
l2 — width of the first electrode single side.
Detailed Description
Reference will now be made in detail to the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar parts or parts having the same or similar functions throughout. In addition, if a detailed description of the known art is not necessary for illustrating the features of the present application, it is omitted. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It is to be understood that the term "and/or" as used herein is intended to include all or any and all combinations of one or more of the associated listed items.
The inventors of the present application have conducted research to find that the conventional single-chip touch panel mainly includes a display area and a non-display area. The metal mesh intersections of the non-display area electrodes are sharp points where static electricity is easily accumulated due to the principle of point discharge. The black matrix layer comprises carbon with low resistivity, static electricity gathered on the electrode close to the black matrix layer is easy to be conducted through the black matrix layer, the electrode is communicated with the nominal electrode, the electrostatic breakdown phenomenon is generated, the electrode of the touch screen is further caused to be short-circuited, and finally the touch function of the touch screen is caused to be out of order. To address this problem, existing solutions have primarily employed optimizing the metal mesh pattern of the electrode to mitigate the build-up of static electricity at the tips, e.g., tips at the metal mesh intersections of the electrode are set to rounded corners, tip cut-off is set obliquely, or tips are set to a rounded curve.
The application provides a touch panel, a preparation method thereof and a touch device, and aims to solve the technical problem of failure of a touch function of the touch panel in the prior art.
The following describes the technical solutions of the present application and how to solve the above technical problems with specific embodiments.
The embodiment of the application provides a touch panel, which has a structure as shown in fig. 1-10, and mainly comprises a display area 4 and a non-display area 5 located at the periphery of the display area 4; the touch panel further includes a first black matrix layer 10, a plurality of first electrodes 30 extending in a first direction, and a plurality of first dummy electrodes 40 extending in the first direction. The first black matrix layer 10 is positioned in the non-display area 5 and is arranged on one side of the substrate 20, and the first black matrix layer 10 comprises hollow areas arranged at intervals and a first black matrix layer main body structure positioned outside the hollow areas; a plurality of first electrodes 30 extending in a first direction are positioned in the display area 4 and the non-display area 5, wherein the first electrodes 30 positioned in the non-display area 5 include first sub-electrodes 31, and the first sub-electrodes 31 are disposed at one side of the exposed portion of the substrate 20 from the hollow area; a plurality of first dummy electrodes 40 extending in the first direction are disposed between adjacent two of the first electrodes 30. In a possible embodiment, a rectangular display area 4 is arranged in the center of the touch panel, a rectangular non-display area 5 is arranged around the rectangular display area 4, a first black matrix layer 10 is arranged in the non-display area 5, the first black matrix layer 10 includes a hollow area with a pattern and a first black matrix layer main body structure outside the hollow area, and the hollow area is arranged in a grid shape. The plurality of first electrodes 30 are disposed at intervals extending along a first direction, which may be parallel to an extending direction of one side of the rectangular display area 4, or alternatively, parallel to an extending direction of a long side of the rectangular display area 4. At least one first dummy electrode 40 is disposed to extend in the first direction, the first dummy electrode 40 is disposed between two adjacent first electrodes 30, and the first dummy electrode 40 is not connected to the first electrodes 30. The first electrodes 30 located in the non-display area 5 are arranged in a grid shape, a first sub-electrode 31 is formed at a tip end where grid edges intersect, the first sub-electrode 31 is arranged in the hollow area, connected with the substrate 20, and not connected with the first black matrix layer 10, the first electrode 30 further includes a first electrode main body structure 32 outside the first sub-electrode 31, and the first sub-electrode of the first electrode main body structure 32 is arranged on one side of the main body of the first black matrix layer 10, which is far away from the substrate 20.
The positional relationship between the first electrode 30 and the first black matrix layer 10 is shown in fig. 5, the positional relationship between the first electrode 30, the first black matrix layer 10, and the first dummy electrode 40 is shown in fig. 6, and in order to clearly distinguish the first electrode 30 from the first black matrix layer 10, the first electrode 30 in fig. 5 and 6 is not formed in a black thick solid line like the first electrode 30 in fig. 3, but is formed in an unfilled wire frame.
In this embodiment, the first sub-electrode 31 is disposed in the hollow area of the first black matrix layer 10, so that the hollow area is simpler to manufacture, the first sub-electrode 31 can be prevented from being connected to the first black matrix layer 10, the first black matrix layer 10 is prevented from being broken down by the electric discharge phenomenon generated by the electric charge accumulation, and the short circuit caused by the connection of the first electrode 30 and the first dummy electrode is prevented, thereby preventing the touch function failure of the touch panel caused by the short circuit.
Optionally, as shown in fig. 15, the hollow area includes groove units arranged in a grid shape, the groove units include at least three grooves 11, and at least three grooves 11 of the groove units enclose a closed pattern; at least one groove 11 is shared between adjacent groove units.
Alternatively, the closed figure enclosed by the four grooves 11 comprises a parallelogram, and the width of each groove 11 is the same.
In a possible embodiment, as shown in fig. 3, the first electrode 30 includes first electrode units arranged in a grid shape, the first electrode units include at least three sides, and at least three sides of the first electrode units surround to form a closed figure; at least one side is shared between the adjacent first electrode units. The first electrode units which are arranged in a grid shape are matched with the groove units which are arranged in a grid shape.
Alternatively, as shown in fig. 3, the closed figure formed by four sides of the first electrode unit includes a parallelogram, the corner structure formed by adjacent sides of the parallelogram is the first sub-electrode 31, and optionally, all the sides of the first electrode unit have the same width. The acute included angle of the acute included angles of the adjacent two sides of the first electrode unit is not less than 30 degrees and not more than 90 degrees. The first electrodes 30 are arranged in a grid shape, so that optical uniformity can be realized, the first electrodes 30 can be prevented from being obviously displayed, the picture realization effect is improved, and good use experience of users is improved. In this embodiment, all the range worth of values may include an end value, it should be noted that the first sub-electrode 31 disposed here is a part of the first electrode 30, or a part of the first electrode that is close to the first electrode and includes a tip, so that the black matrix at a position where the tip is at risk of discharging is hollowed out, thereby preventing electrostatic conduction from being formed, and affecting the touch performance.
In a possible embodiment, when the adjacent two sides of the first electrode unit are at an angle of 90 degrees, the structure of the first black matrix layer 10 and the structure of the first electrode 30 are as shown in fig. 12 to 14.
Optionally, a vertical projection area of the hollow area of the first black matrix layer 10 on the substrate 20 is larger than a vertical projection area of the first electrode 30 on the substrate 20, wherein the vertical projection area of the first electrode 30 on the substrate 20 is at least a vertical projection area of the first sub-electrode 31 of one first electrode 30 on the substrate. Alternatively, the vertical projection area of the first electrode 30 on the base 20 may be the vertical projection area of one first electrode 30 on the base 20, or may be the vertical projection area of a plurality of first electrodes 30 on the substrate. Therefore, the first sub-electrode 31 can be arranged in the hollow area, the connection with the first black matrix layer 10 is avoided, and the electrostatic breakdown phenomenon is prevented.
In a possible embodiment, the groove unit is disposed through the first black matrix layer 10 along the thickness of the first black matrix layer 10 in the opposite direction, the vertical projection area of the groove unit on the substrate is larger than the vertical projection area of the first electrode unit on the substrate, so that the width L1 and the length of the groove are both larger than the width L2 and the length of the single edge of the first electrode unit, so that the first sub-electrode 31 included in the first electrode 30 close to the first black matrix layer 10 is disposed in the groove 11 of the hollow area, the side edge of the first sub-electrode 31 is disposed at an interval with the groove wall of the groove unit, and the first sub-electrode 31 is not connected to the first black matrix layer 10.
Alternatively, as shown in fig. 15, the difference between the width L1 of the groove and the width L2 of the single side of the first electrode is not less than 6 micrometers and not more than 14 micrometers.
Optionally, the side edge of the first sub-electrode 31 (the side surface of the single side 32 of the first electrode) is spaced from the groove wall of the corresponding groove 11 by a distance not less than 3 microns and not more than 7 microns.
Optionally, the thickness of the black matrix layer is not less than 1.5 micrometers and not more than 2 micrometers. The arrangement can avoid a large height difference between the first electrode 30 in the display area 4 and the first electrode 30 in the non-display area 5, and the large height difference easily causes the first electrode 30 in the display area 4 and the first electrode 30 in the non-display area 5 to be broken.
Optionally, the first dummy electrode 40 is disposed on a side of the first black matrix layer body structure away from the substrate 20 between the adjacent hollow areas.
In this embodiment, the plurality of first dummy electrodes 40 extending along the first direction may be disposed in the non-hollow area, and one first dummy electrode 40 is disposed between two first electrodes 30, so that optical uniformity may be achieved, and the first electrodes 30 are prevented from being obviously displayed on the display side of the touch panel, thereby reducing the image display effect.
Alternatively, the first dummy electrode 40 is disposed at one side of the portion of the substrate 20 exposed from the hollow area.
In this embodiment, the plurality of first dummy electrodes 40 correspond to the hollow areas of the first black matrix layer 10, such that the first dummy electrodes 40 are disposed in the hollow areas.
Alternatively, a side of the first dummy electrode 40 located in the non-display area 5, which is away from the first black matrix layer 10, may be flush with a side of the first electrode 30 located in the non-display area 5, which is away from the substrate 20, to form a more planarized surface structure.
Alternatively, the first electrode 30 positioned at the non-display region 5 is disposed at one side of the portion of the substrate 20 exposed from the hollow region.
In this embodiment, the entire first electrode 30 is disposed in the hollow area, and compared with the embodiment in which only the first sub-electrode 31 is disposed in the hollow area, such an arrangement can avoid that a portion of the first electrode 30 disposed on a side of the main body of the first black matrix layer 10 away from the substrate 20 forms a height difference with the first sub-electrode 31, and avoid the first electrode 30 from being broken due to the height difference.
In a possible implementation, as shown in fig. 9 to 11, the touch panel further includes an insulating layer 50, a plurality of second electrodes 60 extending in the second direction, a protective layer 70, and a second black matrix layer 80. The insulating layer 50 is disposed on a side of the first electrode 30 away from the substrate 20, a side of a portion of the substrate 20 on a side of the non-display region 5, a side of the first black matrix layer 10 away from the substrate 20, and a side of the first dummy electrode 40 away from the first black matrix layer 10; a plurality of second electrodes 60 extending in a second direction, the first direction and the second direction intersecting each other, are disposed on a side of the insulating layer 50 away from the substrate 20; the protective layer 70 is disposed on a side of the second electrode 60 away from the insulating layer 50, and a side of the insulating layer 50 away from the substrate 20; the second black matrix layer 80 is disposed on a side of the protective layer 70 away from the insulating layer 50.
The positional relationship of the first electrode 30, the first black matrix layer 10, and the second electrode 60 is as shown in fig. 11, and in order to clearly distinguish the first electrode 30 from the first black matrix layer 10, the first electrode 30 in fig. 11 is not formed in a black thick solid line shape like the first electrode 30 in fig. 3, but is formed in an unfilled wire frame diagram.
Optionally, the first direction and the second direction are orthogonal.
Optionally, the thickness of the second black matrix layer 80 is not less than 8 microns and not more than 12 microns, so that the second black matrix layer 80 with the thickness can ensure optical uniformity and improve the picture realization effect.
In a possible embodiment, the second black matrix layer 80 and the first black matrix layer 10 may be prepared using different resin materials.
Alternatively, the thickness of the first electrode 30 and the second electrode 60 is not less than 3000 angstroms and not more than 5000 angstroms.
Optionally, the touch panel further includes a plurality of second dummy electrodes 90 extending along the second direction, and the second dummy electrodes 90 are disposed between two adjacent second electrodes 60 on a side of the insulating layer 50 away from the substrate 20.
The second dummy electrode 90 is not connected to the second electrode 60, and the second dummy electrode 90 can improve the optical uniformity, prevent the second electrode 60 from being obviously displayed, and improve the image realization effect.
Alternatively, the first electrode 30 may be a sensing electrode; the second electrode 60 may be a driving electrode.
Alternatively, the first electrode 30 may be a driving electrode; the second electrode 60 may be a sensing electrode.
In a possible embodiment, as shown in fig. 16-17, the touch panel includes a display panel and a touch substrate 1, and the display panel may be a liquid crystal panel 2 or an OLED (Organic Light-Emitting Diode) panel 3. The touch panel may also be an In Cell screen (the function of the touch substrate 1 is embedded In the liquid crystal pixels) or an On Cell screen (the touch substrate 1 is embedded between the color filter substrate and the polarizer of the display screen).
Based on the same inventive concept, embodiments of the present application provide a touch device, including the touch panel provided in any one of the foregoing embodiments of the present application.
Based on the same inventive concept, the embodiment of the present application provides a method for manufacturing a touch panel, as shown in fig. 18, including the following steps S1-S3:
step S1: a first preliminary black matrix layer 100 is prepared on one side of the substrate 20.
The film layer structure obtained through step S1 is shown in fig. 19.
Step S2: the first initial black matrix layer 100 is patterned to obtain a first black matrix layer 10 located in the non-display area 5, where the first black matrix layer 10 includes spaced hollow areas and a first black matrix main body structure located outside the hollow areas.
The film layer structure obtained through step S2 is shown in fig. 20.
Step S3: in the display area 4 and the non-display area 5, a plurality of first electrodes 30 extending in the first direction are prepared such that the first electrodes 30 positioned in the non-display area include first sub-electrodes 31 disposed at one side of a portion of the substrate 20 exposed from the hollowed-out areas, while the first electrodes 30 extending in the first direction are prepared in the non-display area 5 such that the first dummy electrodes 40 are disposed between adjacent hollowed-out areas.
First sub-electrode
The film layer structure obtained through step S3 is shown in fig. 21.
In this embodiment, the first sub-electrode 31 is disposed in the hollow area of the first black matrix layer 10, the hollow area is simple to prepare, the first sub-electrode 31 can be prevented from being connected to the first black matrix layer 10, the first black matrix layer 10 is prevented from being broken down by the electric discharge phenomenon generated by the electric charge accumulation, and the short circuit caused by the connection between the first electrode 30 and the first dummy electrode is prevented, so that the touch function failure of the touch panel caused by the short circuit is avoided.
Optionally, the method for manufacturing a touch panel further includes: preparing an insulating layer 50 simultaneously on a side of the first electrode 30 away from the substrate 20, a side of a portion of the substrate 20 on a side of the display region 4, a side of the first black matrix layer 10 away from the substrate 20, and a side of the first dummy electrode 40 away from the first black matrix layer 10; preparing a plurality of second electrodes 60 extending in a second direction on a side of the insulating layer 50 away from the substrate 20, the first direction and the second direction intersecting; preparing a protective layer 70 on the side of the second electrode 60 away from the insulating layer 50 and the side of the insulating layer 50 away from the substrate 20 at the same time to obtain an intermediate substrate; an intermediate panel conforming to the design size is cut out of the intermediate substrate, and a second black matrix layer 80 is prepared on the side of the protective layer 70 of the intermediate panel away from the insulating layer 50.
Alternatively, cutting an intermediate panel having a design size from the intermediate substrate, and preparing a second black matrix layer 80 on a side of the protective layer 70 of the intermediate panel away from the insulating layer 50, includes: cutting an intermediate panel according with the designed size from the intermediate substrate, preparing a second initial black matrix layer on the side, away from the insulating layer 50, of the protective layer 70 of the intermediate panel, and patterning the formed second initial black matrix layer after the last cutting is completed to obtain a second black matrix layer 80.
In this embodiment, the method for preparing the first initial black matrix layer 100, the first black matrix layer 10, the first electrode 30, the first dummy electrode 40, the second electrode 60, the second dummy electrode 90, the insulating layer 50, and the protective layer 70 includes one or more of sputtering, glue coating, exposure, development, etching, and cleaning, and the preparation methods are all the prior art, and therefore detailed description of the specific preparation process is omitted.
By applying the embodiment of the application, at least the following beneficial effects can be realized:
the first sub-electrode 31 is arranged in the hollow area of the first black matrix layer 10, the hollow area is simple to prepare, the first sub-electrode 31 can be prevented from being connected with the first black matrix layer 10, the first black matrix layer 10 is prevented from being broken down by the electric discharge phenomenon generated by electric charge accumulation, the short circuit caused by the connection of the first electrode 30 and the first dummy electrode is prevented, and therefore the touch function failure of the touch panel caused by the short circuit is avoided.
Those of skill in the art will appreciate that the various operations, methods, steps in the processes, acts, or solutions discussed in this application can be interchanged, modified, combined, or eliminated. Further, other steps, measures, or schemes in various operations, methods, or flows that have been discussed in this application can be alternated, altered, rearranged, broken down, combined, or deleted. Further, steps, measures, schemes in the prior art having various operations, methods, procedures disclosed in the present application may also be alternated, modified, rearranged, decomposed, combined, or deleted.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
It should be understood that, although the steps in the flowcharts of the figures are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless explicitly stated herein. Moreover, at least a portion of the steps in the flow chart of the figure may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed alternately or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.
Claims (10)
1. A touch panel, comprising: a display area and a non-display area located at the periphery of the display area; the touch panel includes:
the first black matrix layer is positioned in the non-display area and arranged on one side of the substrate, and comprises hollow areas arranged at intervals and a first black matrix layer main body structure positioned outside the hollow areas;
a plurality of first electrodes extending in a first direction and disposed in the display region and the non-display region, wherein the first electrodes disposed in the non-display region include first sub-electrodes disposed at one side of a portion of the substrate exposed from the hollow region;
a plurality of first dummy electrodes extending in a first direction, the first dummy electrodes being disposed between adjacent ones of the first electrodes.
2. The touch panel of claim 1,
the first dummy electrode is arranged on one side, far away from the substrate, of the first black matrix layer main body structure between the adjacent hollow areas.
3. The touch panel according to claim 2, wherein the first dummy electrode is disposed on one side of a portion of the substrate exposed from the hollow area.
4. The touch panel of claim 2,
the first electrode positioned in the non-display area is disposed at one side of a portion of the substrate exposed from the hollow area.
5. The touch panel according to claim 1, further comprising:
an insulating layer disposed on a side of the first electrode remote from the substrate, a side of a portion of the substrate on a side of the display area, a side of the first black matrix layer remote from the substrate, and a side of the first dummy electrode remote from the first black matrix layer;
a plurality of second sensing electrodes extending along a second direction, wherein the second sensing electrodes are arranged on one side of the insulating layer far away from the substrate, and the first direction and the second direction are intersected;
the protective layer is arranged on one side, far away from the insulating layer, of the second sensing electrode and one side, far away from the substrate, of the insulating layer;
and the second black matrix layer is arranged on one side of the protective layer, which is far away from the insulating layer.
6. The touch panel of claim 5, further comprising:
and the plurality of second dummy electrodes extend along the second direction and are arranged on one side of the insulating layer far away from the substrate and between two adjacent second electrodes.
7. The touch panel of claim 1,
the first electrode is an induction electrode;
the second electrode is a drive electrode.
8. A touch device, comprising: touch panel according to any one of the claims 1-7.
9. A method for manufacturing a touch panel according to any one of claims 1 to 7, comprising:
preparing a first initial black matrix layer on one side of a substrate;
patterning the first initial black matrix layer to obtain a first black matrix layer located in a non-display area, wherein the first black matrix layer comprises spaced hollow areas and a first black matrix main body structure located outside the hollow areas;
preparing a plurality of first electrodes extending in a first direction in a display area and the non-display area such that a first sub-electrode included in the first electrode positioned in the non-display area is disposed at one side of a portion of the substrate exposed from the hollowed-out area, while preparing a first electrode extending in the first direction in the non-display area such that the first dummy electrode is disposed between adjacent hollowed-out areas.
10. The method for manufacturing a touch panel according to claim 9, further comprising:
preparing an insulating layer at the same time on a side of the first electrode away from the substrate, a side of a portion of the substrate on a side of the display area, a side of the first black matrix layer away from the substrate, and a side of the first dummy electrode away from the first black matrix layer;
preparing a plurality of second sensing electrodes extending along a second direction on one side of the insulating layer far away from the substrate, wherein the first direction and the second direction intersect;
preparing protective layers on one side of the second induction electrode, which is far away from the insulating layer, and one side of the insulating layer, which is far away from the substrate at the same time to obtain an intermediate substrate;
and cutting an intermediate panel according with the design size from the intermediate substrate, and preparing a second black matrix layer on one side of the protective layer of the intermediate panel, which is far away from the insulating layer.
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| CN202110988999.5A CN113655912B (en) | 2021-08-26 | 2021-08-26 | Touch panel, manufacturing method thereof and touch device |
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| CN202110988999.5A CN113655912B (en) | 2021-08-26 | 2021-08-26 | Touch panel, manufacturing method thereof and touch device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103558712A (en) * | 2013-11-21 | 2014-02-05 | 京东方科技集团股份有限公司 | Color film substrate, manufacture method of color film substrate, embedded touch panel and display device |
| CN103970354A (en) * | 2014-04-29 | 2014-08-06 | 京东方科技集团股份有限公司 | In-cell touch panel and display device |
| CN106020530A (en) * | 2016-05-06 | 2016-10-12 | 上海天马微电子有限公司 | A touch control display panel and a touch control display device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558712A (en) * | 2013-11-21 | 2014-02-05 | 京东方科技集团股份有限公司 | Color film substrate, manufacture method of color film substrate, embedded touch panel and display device |
| CN103970354A (en) * | 2014-04-29 | 2014-08-06 | 京东方科技集团股份有限公司 | In-cell touch panel and display device |
| CN106020530A (en) * | 2016-05-06 | 2016-10-12 | 上海天马微电子有限公司 | A touch control display panel and a touch control display device |
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