CN111158516B - Touch substrate and touch screen - Google Patents
Touch substrate and touch screen Download PDFInfo
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- CN111158516B CN111158516B CN201911227794.4A CN201911227794A CN111158516B CN 111158516 B CN111158516 B CN 111158516B CN 201911227794 A CN201911227794 A CN 201911227794A CN 111158516 B CN111158516 B CN 111158516B
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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
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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
- G06F2203/04111—Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
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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
- G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
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- Position Input By Displaying (AREA)
Abstract
The application provides a touch substrate and a touch screen, wherein the touch substrate comprises a touch layer; the touch layer includes a first electrode and a second electrode. The first electrode comprises a first protrusion and a first virtual electrode; the second electrode includes a second protrusion and a second dummy electrode. The first dummy electrode and the second dummy electrode are separated by at least one sub-pixel, and the second dummy electrode and the first dummy electrode are separated by at least one sub-pixel. The proportion of the virtual electrodes to the corresponding electrodes and the relative side length between the first electrode and the second electrode are increased, so that the mutual capacitance value between the first electrode and the second electrode is increased, the multi-finger coaxial capacitance variation of a product under suspension touch is improved, and the touch sensitivity of the touch substrate is enhanced.
Description
Technical Field
The application relates to the field of display, in particular to a touch substrate and a touch screen.
Background
With the development of display technologies, touch screens are more and more commonly used in electronic devices such as tablet computers and smart phones. The capacitive touch screen in the prior art is most widely applied to smart phones, tablet computers and the like, and the conventional capacitive screen uses an Indium Tin Oxide (ITO) conductive film as a material of a touch electrode, and has the disadvantages of high price, large resistance value, difficulty in bending and the like. The appearance of the Metal Mesh (Metal Mesh) technology makes up for the defects of the ITO touch electrode.
Currently, floating touch is a novel touch technology, which allows a user to complete a mobile phone operation without touching a screen (i.e., the touch screen is not grounded) when using the mobile phone. However, the existing touch screen has low sensitivity of floating touch on the premise of good physical touch, which affects user experience.
Therefore, a touch substrate is needed to solve the above technical problems.
Disclosure of Invention
The application provides a touch substrate and a touch screen to solve the technical problem that the suspension touch sensitivity of the existing touch screen is low.
In order to solve the above problems, the technical solution provided by the present application is as follows:
the application provides a touch substrate, it includes the substrate and forms the touch-control layer on the substrate, the touch-control layer includes:
the first electrode group comprises at least two first electrodes which are arranged along a second direction and are sequentially connected, any first electrode comprises at least one first connecting area positioned on the periphery of the first electrode, and at least one first bulge is arranged in any first connecting area;
at least one second electrode group arranged along a second direction, wherein the second electrode group comprises at least two second electrodes which are arranged along the first direction and are sequentially connected, any second electrode comprises at least one second connecting area positioned on the periphery of the second electrode, and at least one second bulge is arranged in any second connecting area;
the first bulges are positioned between two adjacent second bulges, the second bulges are positioned between two adjacent first bulges, and the first connection area and the second connection area are mutually embedded to form a connection part of the first electrode and the second electrode;
at least one first virtual electrode is arranged in any one first electrode, the first virtual electrodes are uniformly distributed in the first electrode, and the first virtual electrodes and the first electrode are arranged in an insulating manner;
at least one second virtual electrode is arranged in any one second electrode, the second virtual electrodes are uniformly distributed in the second electrode, and the second virtual electrode and the second electrode are arranged in an insulating manner;
the first dummy electrode and the second dummy electrode are separated by at least one sub-pixel, and the second dummy electrode and the first dummy electrode are separated by at least one sub-pixel.
In the touch substrate of the present application, the number of the first virtual electrodes in any one of the first electrodes is equal to the number of the second virtual electrodes in any one of the second electrodes;
the shape of the first dummy electrode in any one of the first electrodes is the same as the shape of the second dummy electrode in any one of the second electrodes.
In the touch substrate of the present application,
any of the first connection regions and any of the second connection regions have the same pattern.
In the touch substrate of the present application, the first protrusion and the second protrusion are cross-shaped portions.
In the touch substrate of the present application, the first protrusions in any one of the first connection regions and the second protrusions in any one of the second connection regions have the same extension length;
the first protrusion extends from the first electrode to the second virtual electrode located within the second electrode, and the second protrusion extends from the second electrode to the first virtual electrode located within the first electrode.
In the touch substrate of the present application, the extension lengths of the first protrusion in any one of the first connection regions and the second protrusion in any one of the second connection regions are different;
the first protrusion or/and the second protrusion may have an extension length that increases and then decreases in the first attachment area or/and the second attachment area.
In the touch substrate of the present application, the first electrode, the first virtual electrode, the second electrode, and the second virtual electrode are formed by a metal mesh;
the first electrode and the second electrode are arranged on the touch layer in an insulating and cross mode through the breakpoints of the metal grids, the first virtual electrode and the first electrode are arranged in an insulating mode through the breakpoints of the metal grids, and the second virtual electrode and the second electrode are arranged in an insulating mode through the breakpoints of the metal grids.
In the touch substrate of the present application,
the metal grid comprises a plurality of first metal wires and a plurality of second metal wires;
the plurality of first metal wires and the plurality of second metal wires are arranged in a crossed mode to form a plurality of meshes with the same shapes as the outer rings of the corresponding sub-pixels.
In the touch substrate of the present application, the first electrode group further includes at least one first metal bridge located between two adjacent first electrodes, and the second electrode group further includes at least one second metal bridge located between two adjacent second electrodes;
the first metal bridge, the first electrode and the second electrode are the same metal layer;
the first metal bridge and the second metal bridge are different metal layers.
The application further provides a touch screen, wherein the touch screen comprises the touch substrate.
Has the advantages that: the proportion of the virtual electrodes to the corresponding electrodes and the relative side length between the first electrode and the second electrode are increased, so that the mutual capacitance value between the first electrode and the second electrode is increased, the multi-finger coaxial capacitance variation of a product under suspension touch is improved, and the touch sensitivity of the touch substrate is enhanced.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a structural diagram of a touch layer in a touch substrate according to the present application;
FIG. 2 is a first enlarged structural view of the area A in FIG. 1;
FIG. 3 is an enlarged block diagram of an area of FIG. 1;
FIG. 4 is a second enlarged structural view of the area A in FIG. 1;
FIG. 5 is a cross-sectional view of a portion of a touch substrate according to the present application;
FIG. 6 is a diagram illustrating a partial method of a touch layer in a touch substrate according to the prior art.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, 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, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
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; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
The existing floating touch technology is a novel touch technology, and a user can complete mobile phone operation without touching a screen when using a mobile phone. However, the conventional touch screen has low sensitivity of floating touch on the premise of good physical touch, and reduces user experience. The present application proposes the following technical solutions based on the above technical problems.
The present application provides a touch substrate, which includes a substrate 40 and a touch layer 100 formed on the substrate 40.
Referring to fig. 1-2, the touch layer 100 includes:
the at least one first electrode group 10 arranged along the first direction X includes at least two first electrodes 11 arranged along the second direction Y and sequentially connected to each other, each of the first electrodes 11 includes at least one first connection region 110 located at the periphery of the first electrode 11, and at least one first protrusion 111 is disposed in each of the first connection regions 110.
The at least one second electrode group 20 arranged along the second direction Y includes at least two second electrodes 21 arranged along the first direction X and sequentially connected to each other, any one of the second electrodes 21 includes at least one second connection region 210 located at the periphery of the second electrode 21, and at least one second protrusion 211 is disposed in any one of the second connection regions 210.
In this embodiment, the first protrusion 111 is located between two adjacent second protrusions 211, and the second protrusions 211 are located between two adjacent first protrusions 111.
In the present embodiment, the first connection region 110 and the second connection region 210 are embedded with each other to form a connection portion 200 between the first electrode 11 and the second electrode 21.
In this embodiment, the first direction is an X direction and is parallel to a horizontal direction; the second direction is the Y direction and is parallel to the vertical direction.
In this embodiment, the touch layer 100 further includes at least one first dummy electrode 12 located in any one of the first electrodes 11, the first dummy electrodes 12 are uniformly distributed in the first electrode 11, and the first dummy electrodes 12 are insulated from the first electrode 11.
In this embodiment, the touch layer 100 further includes at least one second dummy electrode 22 located in any one of the second electrodes 21, the second dummy electrodes 22 are uniformly distributed in the second electrode 21, and the second dummy electrodes 22 and the second electrode 21 are arranged in an insulating manner.
In this embodiment, two adjacent first protrusions 111 or second protrusions 211 are spaced by at least one sub-pixel. The second dummy electrode 22 is spaced apart from the first protrusion 111 by at least one sub-pixel size. The first dummy electrode 12 is spaced apart from the second protrusion 211 by at least one sub-pixel size.
This application is crossed the interval that reduces between two adjacent first archs 111 or two adjacent second archs 211, perhaps increases first arch 111 or the protruding 211 length of second, in order to increase first electrode 11 with relative length of side between the second electrode 21, in order to increase first electrode 11 with mutual capacitance value between the second electrode 21 to and increased first virtual electrode 12 and the proportion that second virtual electrode 22 accounts for corresponding electrode block, improved the product and pointed coaxial capacitance variation under the touch-control of suspension, strengthened touch-control sensitivity of touch-control base plate.
In this embodiment, the number of the first dummy electrodes 12 in any one of the first electrodes 11 and the number of the second dummy electrodes 22 in any one of the second electrodes 21 may be equal.
In this embodiment, the shape of the first dummy electrode 12 in any one of the first electrodes 11 may be the same as the shape of the second dummy electrode 22 in any one of the second electrodes 21. The shapes of the first dummy electrode 12 and the second dummy electrode 22 are not particularly limited in this application and may be set according to a specific embodiment.
In this embodiment, the first electrode 11, the first dummy electrode 12, the second electrode 21, and the second dummy electrode 22 are formed of a metal mesh 30.
Referring to fig. 3, the first electrode 11 and the second electrode 21 are disposed on the touch layer 100 in an insulating and intersecting manner through the break point of the metal mesh 30, the first virtual electrode 12 is disposed in an insulating manner through the break point of the metal mesh 30 and the first electrode 11, and the second virtual electrode 22 is disposed in an insulating manner through the break point of the metal mesh 30 and the second electrode 21.
In this embodiment, the first protrusion 111 and the second protrusion 211 may be cross-shaped.
Taking any one of the areas in fig. 1 as an example, the metal grid 30 includes a plurality of first metal lines 31 and a plurality of second metal lines 32. The plurality of first metal lines 31 and the plurality of second metal lines 32 are arranged to intersect each other, and form a plurality of meshes having the same shape as the outer circles of the corresponding sub-pixels. For convenience of description, the metal mesh in fig. 3 of the present application is a diamond mesh similar to the prior art.
Referring to fig. 2 and 4, the first connection region 110 and the second connection region 210 are illustrated in the same pattern.
Referring to fig. 2, the first bump 111 in any of the first connection regions 110 and the second bump 211 in any of the second connection regions 210 have the same extension length.
The first protrusion 111 extends from the first electrode 11 to the second dummy electrode 22 located within the second electrode 21. The second protrusion 211 extends from the second electrode 21 toward the first dummy electrode 12 located within the first electrode 11.
Referring to fig. 4, the first bump 111 in any of the first connection regions 110 and the second bump 211 in any of the second connection regions 210 have different extending lengths.
In the first connection region 110 and/or the second connection region 210, the extension length of the first protrusion 111 and/or the second protrusion 211 increases and then decreases.
Referring to fig. 1 to 5, the first electrode group 10 further includes at least one first metal bridge 13 located between two adjacent first electrodes 11, and the second electrode group 20 further includes at least one second metal bridge 23 located between two adjacent second electrodes 21;
in this embodiment, the first metal bridge 13, the first electrode 11 and the second electrode 21 are the same metal layer. The first metal bridge 13 and the second metal bridge 23 are different metal layers.
Referring to fig. 5, at least one first insulating layer 41 is disposed between the second metal bridge 23 and the first electrode 11. At least two first via holes 42 are disposed on the first insulating layer 41, and the second metal bridge 23 electrically connects two adjacent first electrodes 11 through the first via holes 42.
In this embodiment, the second metal bridge 23 is located between the substrate 40 and the touch layer 100. Alternatively, the second metal bridge 23 is located on the touch layer 100.
The technical means of the present application will be described below in detail.
Referring to fig. 1, the touch layer 100 includes 3 rows of first electrode sets 10 arranged in parallel along the X direction, and 3 rows of second electrode sets 20 arranged in parallel along the Y direction. Any one of the first electrode groups 10 includes 4 first electrodes 11 arranged in the Y direction and electrically connected, and any one of the second electrode groups 20 includes 4 second electrodes 21 arranged in the X direction and electrically connected. The first electrode 11 and the second electrode 21 are arranged in an insulated and crossed manner.
Referring to fig. 2, in the region a, a plurality of first dummy electrodes 12 are disposed in any one of the first electrodes 11, and a plurality of second dummy electrodes 22 are disposed in any one of the second electrodes 21. In this embodiment, 4X4 dummy electrodes are disposed in any one of the first electrode 11 and the second electrode 21. The dummy electrodes are identical in shape.
In the present embodiment, since the area of any one of the first electrodes 11 and the area of any one of the second electrodes 21 may be substantially the same, the ratio of the area of the corresponding electrode occupied by the dummy electrode in a first electrode 11 or a second electrode 21 is equal.
In the prior art, the arrangement of the virtual electrode is mainly used for removing the technical problem that the unexpected visual visible stripe effect appears visually. The touch substrate is mainly used for reducing the proportion of the area occupied by the corresponding first electrode 11 and the second electrode 21 so as to reduce the side capacitance between the first electrode 11 and the second electrode 21 and increase the sensitivity of the touch substrate in a suspension touch state.
Referring to fig. 2, any of the first connection regions 110 coincides with the corresponding second connection region 210, each of the first connection regions 110 includes 5 first protrusions 111, and each of the second connection regions 210 includes 5 second protrusions 211. The first protrusion 111 and the second protrusion 211 are engaged with each other to form a complete pattern.
Referring to fig. 3, although the first electrode 11, the first dummy electrode 12, the second electrode 21, and the second dummy electrode 22 are visually integrated, the first electrode 11, the first dummy electrode 12, the second electrode 21, and the second dummy electrode 22 are insulated from each other by a break point of a metal wire in a boundary region of the first electrode 11, the first dummy electrode 12, and the second electrode 21. Therefore, the first protrusion 111 and the second protrusion 211 are insulated from each other by a metal break point between the first protrusion 111 and the second protrusion 211 in fig. 2.
Compared with the prior art, in the embodiment, a virtual electrode does not need to be arranged between the first electrode 11 and the second electrode 21, so that the technical problems of visual hollowing and the like are solved.
In addition, the first metal lines 31 and the second metal lines 32 are arranged to intersect each other to form diamond meshes in the related art, and correspond to data lines and scanning lines. The first metal lines 31 and the second metal lines 32 of the present application are arranged to intersect with each other to form a plurality of meshes having the same shape as the outer circles of the corresponding sub-pixels, so that the metal mesh 30 is closer to the actual product structure.
Referring to fig. 2 and 4, in order to ensure the sensitivity of touch operations in each area, the patterns of any one of the first connection regions 110 and any one of the second connection regions 210 are the same, that is, the patterns of the connection portions of any one of the first electrodes 11 and the second electrodes 21 are the same. The relative side length between the first electrode 11 and the second electrode 21 of any region is ensured to be the same, and the relative side length between the first electrode 11 and the second electrode 21 in the embodiment is characterized by the area of the right opposite surface between the first electrode 11 and the second electrode 21.
Referring to fig. 2, the first protrusion 111 and the second protrusion 211 have the same extension length and shape. The first protrusion 111 may extend toward the second dummy electrode 22, and the second protrusion 211 may extend toward the first dummy electrode 12, so as to increase a relative side length between the first electrode 11 and the second electrode 21. But the area occupied by the first electrode 11 and the second electrode 21 is reduced.
In this embodiment, when the interval between the second dummy electrode 22 and the first protrusion 111 is equal to the size of a sub-pixel, and the interval between the first dummy electrode 12 and the second protrusion 211 is equal to the size of a sub-pixel, the relative side length between the first protrusion 111 and the second protrusion 211 is the largest, and the area of the right opposite surface between the first electrode 11 and the second electrode 21 is the largest, so that the mutual capacitance between the first electrode 11 and the second electrode 21 is increased, the capacitance variation of the product under the floating touch is improved, and the touch sensitivity of the touch substrate is enhanced.
Referring to fig. 4, the first bump 111 in any of the first connection regions 110 and the second bump 211 in any of the second connection regions 210 have different extending lengths. In the first connection region 110 and/or the second connection region 210, the extension length of the first protrusion 111 and/or the second protrusion 211 increases and then decreases.
In this embodiment, the protrusion located in the middle region of the first connection region 110 or the second connection region 210 has the largest extension length, which is close to the center of the corresponding electrode. In order to avoid the collision of the two first protrusions 111, the extension length of the corresponding protrusion gradually decreases from the protrusion to both sides.
In this embodiment, the first dummy electrode 12 is disposed between two adjacent second protrusions 211, and the second dummy electrode 22 is disposed between two adjacent first electrodes 11. Since the extending lengths of the first protrusion 111 and the second protrusion 211 are increased, the areas of the first dummy electrode 12 and the second dummy electrode 22 are reduced in comparison with fig. 2 in this embodiment.
Compared with fig. 2, in the present embodiment, the relative side lengths of the first protrusion 111 and the second protrusion 211 are increased, the area of the right opposite surface between the first electrode 11 and the second electrode 21 is the largest, and the mutual capacitance value between the first electrode 11 and the second electrode 21 is further increased. But the area occupied by the first electrode 11 and the second electrode 21 is further reduced.
In fig. 2 and 4, compared with the prior art, the present application reduces the area ratio occupied by the corresponding electrode by increasing the area ratio occupied by the dummy electrode, and reduces the side capacitance between the first electrode 11 and the second electrode 21. Extending the length of the first protrusion 111 or the second protrusion 211 to the corresponding electrode increases the relative side length between the first electrode 11 and the second electrode 21, increases the area of the right opposite surface between the first electrode 11 and the second electrode 21, i.e., increases the mutual capacitance between the first electrode 11 and the second electrode 21.
In the above embodiment, since the areas of the first electrode 11 and the second electrode 21 are reduced, that is, the effective touch areas of the first electrode 11 and the second electrode 21 are reduced, and the area of the directly opposite surface between the first electrode 11 and the second electrode 21 is increased, that is, in the case of the ground touch, the actual change value is not changed. The area of the right opposite surface between the first electrode 11 and the second electrode 21 is increased, so that the mutual capacitance value between the first electrode 11 and the second electrode 21 is increased, the capacitance variation of the product under the suspension touch is improved, and the touch sensitivity of the touch substrate is enhanced.
When the area of the opposite surface between the first electrode 11 and the second electrode 21 is increased by a value larger than the effective touch area of the first electrode 11 and the second electrode 21, the sensitivity of the touch substrate of the embodiment is increased during the grounding touch.
In the above embodiment, since the relative side length between the first electrode 11 and the second electrode 21 in the embodiment of fig. 4 is increased by a larger ratio than that in fig. 2, the embodiment of fig. 4 is better than that in fig. 2 under the allowable conditions of the process.
Referring to fig. 6, fig. 6 is a partial method diagram of a touch layer in a touch substrate in the prior art. In the following, a comparison is made between fig. 6 and fig. 2. In this embodiment, the area of each of fig. 6 and 2 is 4.2mm by 4.2mm for comparison, and refer to the data in table 1 specifically.
Table 1 prior art and modified conventional data comparison
Compared with the prior art fig. 6, the area ratio of the dummy electrode in fig. 2 is increased, the first electrode 11 and the second electrode 21 are deeply engaged, and the length of the interaction line between the first electrode 11 and the second electrode 21 is increased.
As can be seen from table 1, compared with the prior art, the hand-to-drive capacitance, the hand-to-sense capacitance, the drive-to-ground capacitance, the sense-to-ground capacitance, the capacitance of all electrodes of a single finger pair, the non-floating touch variation, and the like are slightly decreased, but the mutual capacitance between the first electrode (TX)/the second electrode (RX) is increased, so that the touch sensitivity of the touch substrate in the grounded state is improved.
The following is a comparison of the relevant data in the floating state, specifically referring to table 2.
TABLE 2 Prior Art and modified levitation State related data comparison
As can be seen from table 2, when the touch substrate of the present application is operated by multiple fingers, the floating touch variation increases, the number of fingers increases, the floating touch variation and the floating touch increase more, and the touch sensitivity increases more significantly.
As can be seen from tables 1 and 2, in the present application, by increasing the proportion of the virtual electrode to the corresponding electrode and the relative side length between the first electrode and the second electrode, the mutual capacitance between the first electrode and the second electrode is increased, so that the multi-finger coaxial capacitance variation of the product under the floating touch is improved, and the touch sensitivity of the touch substrate is enhanced.
According to another aspect of the application, a touch screen is also provided, the touch screen comprises the touch substrate, and further comprises a polarizing layer and a cover plate layer which are sequentially arranged on the touch substrate.
According to yet another aspect of the present application, there is also provided an electronic device, including the touch screen; the electronic device includes, but is not limited to, a mobile phone, a tablet computer, a computer monitor, a game machine, a television, a display screen, a wearable device, and other life appliances or household appliances with display functions.
The working principle of the touch screen and the working principle of the electronic device are similar to the working principle of the touch substrate, and the working principle of the touch screen and the working principle of the electronic device can specifically refer to the working principle of the touch substrate, which is not described herein again.
The application provides a touch substrate and a touch screen, wherein the touch substrate comprises a touch layer; the touch layer includes a first electrode and a second electrode. The first electrode comprises a first protrusion and a first virtual electrode; the second electrode includes a second protrusion and a second dummy electrode. The first dummy electrode and the second dummy electrode are separated by at least one sub-pixel, and the second dummy electrode and the first dummy electrode are separated by at least one sub-pixel. The proportion of the virtual electrodes to the corresponding electrodes and the relative side length between the first electrode and the second electrode are increased, so that the mutual capacitance value between the first electrode and the second electrode is increased, the multi-finger coaxial capacitance variation of a product under suspension touch is improved, and the touch sensitivity of the touch substrate is enhanced.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The foregoing describes in detail an electronic device provided in an embodiment of the present application, and a specific example is applied to illustrate the principle and the implementation of the present application, and the description of the foregoing embodiment is only used to help understanding the technical solution and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (10)
1. A touch substrate, comprising a substrate and a touch layer formed on the substrate, wherein the touch layer comprises:
the first electrode group comprises at least two first electrodes which are arranged along a second direction and are sequentially connected, any first electrode comprises at least one first connecting area positioned on the periphery of the first electrode, and at least one first bulge is arranged in any first connecting area;
at least one second electrode group arranged along a second direction, wherein the second electrode group comprises at least two second electrodes which are arranged along the first direction and are sequentially connected, any second electrode comprises at least one second connecting area positioned on the periphery of the second electrode, and at least one second bulge is arranged in any second connecting area;
the first bulges are positioned between two adjacent second bulges, the second bulges are positioned between two adjacent first bulges, and the first connection area and the second connection area are mutually embedded to form a connection part of the first electrode and the second electrode;
at least one first virtual electrode is arranged in any one first electrode, the first virtual electrodes are uniformly distributed in the first electrode, and the first virtual electrodes and the first electrode are arranged in an insulating manner;
at least one second virtual electrode is arranged in any one second electrode, the second virtual electrodes are uniformly distributed in the second electrode, and the second virtual electrode and the second electrode are arranged in an insulating manner;
the first dummy electrode and the second dummy electrode are separated by at least one sub-pixel, and the second dummy electrode and the first dummy electrode are separated by at least one sub-pixel.
2. The touch substrate of claim 1,
the number of the first virtual electrodes in any one first electrode is equal to the number of the second virtual electrodes in any one second electrode;
the shape of the first dummy electrode in any one of the first electrodes is the same as the shape of the second dummy electrode in any one of the second electrodes.
3. The touch substrate of claim 1,
any of the first connection regions and any of the second connection regions have the same pattern.
4. The touch substrate of claim 3,
the first protrusion and the second protrusion are cross-shaped parts.
5. The touch substrate of claim 3, wherein the first protrusions in any of the first connection areas and the second protrusions in any of the second connection areas have the same extension length;
the first protrusion extends from the first electrode to the second dummy electrode within the second electrode, the second dummy electrode being spaced from the first protrusion by a size of at least one sub-pixel; and
the second protrusion extends from the second electrode to the first dummy electrode within the first electrode, the first dummy electrode being spaced apart from the second protrusion by a size of at least one sub-pixel.
6. The touch substrate of claim 3,
the first bump in any one of the first connection regions and the second bump in any one of the second connection regions have different extending lengths;
the first protrusion or/and the second protrusion may have an extension length that increases and then decreases in the first attachment area or/and the second attachment area.
7. The touch substrate of claim 1, wherein the first electrode, the first virtual electrode, the second electrode, and the second virtual electrode are formed of a metal mesh;
the first electrode and the second electrode are arranged on the touch layer in an insulating and cross mode through the breakpoints of the metal grids, the first virtual electrode and the first electrode are arranged in an insulating mode through the breakpoints of the metal grids, and the second virtual electrode and the second electrode are arranged in an insulating mode through the breakpoints of the metal grids.
8. The touch substrate of claim 7,
the metal grid comprises a plurality of first metal wires and a plurality of second metal wires;
the plurality of first metal wires and the plurality of second metal wires are arranged in a crossed mode to form a plurality of meshes with the same shapes as the outer rings of the corresponding sub-pixels.
9. The touch substrate of claim 1, wherein the first electrode group further comprises at least one first metal bridge between two adjacent first electrodes, and the second electrode group further comprises at least one second metal bridge between two adjacent second electrodes;
the first metal bridge, the first electrode and the second electrode are the same metal layer;
the first metal bridge and the second metal bridge are different metal layers.
10. A touch panel comprising the touch substrate according to any one of claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911227794.4A CN111158516B (en) | 2019-12-04 | 2019-12-04 | Touch substrate and touch screen |
| PCT/CN2020/079112 WO2021109353A1 (en) | 2019-12-04 | 2020-03-13 | Touch-control substrate and touch-control screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911227794.4A CN111158516B (en) | 2019-12-04 | 2019-12-04 | Touch substrate and touch screen |
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| Publication Number | Publication Date |
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| CN111158516A CN111158516A (en) | 2020-05-15 |
| CN111158516B true CN111158516B (en) | 2021-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911227794.4A Active CN111158516B (en) | 2019-12-04 | 2019-12-04 | Touch substrate and touch screen |
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| Country | Link |
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| CN (1) | CN111158516B (en) |
| WO (1) | WO2021109353A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111651091A (en) * | 2020-06-22 | 2020-09-11 | 武汉华星光电半导体显示技术有限公司 | Touch electrode structure and touch display panel |
| CN111754878B (en) * | 2020-07-06 | 2022-04-12 | 武汉天马微电子有限公司 | Display panel and display device |
| CN111796719A (en) * | 2020-07-13 | 2020-10-20 | 京东方科技集团股份有限公司 | Touch structure and touch display panel |
| CN114237412B (en) * | 2020-09-09 | 2023-11-03 | 京东方科技集团股份有限公司 | Touch structure, display panel and electronic device |
| CN112286388B (en) * | 2020-10-29 | 2022-12-20 | 维沃移动通信有限公司 | Electronic equipment and preparation method of touch display screen |
| CN112578938B (en) * | 2020-12-08 | 2022-12-06 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| CN113031829B (en) * | 2021-04-29 | 2024-09-27 | 京东方科技集团股份有限公司 | Touch electrode structure, touch panel and display device |
| WO2022252016A1 (en) * | 2021-05-31 | 2022-12-08 | 京东方科技集团股份有限公司 | Touch panel and display device |
| US20240302930A1 (en) * | 2022-01-29 | 2024-09-12 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Touch-control display panel, touch-control display apparatus and method for manufacturing touch-control layer |
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| WO2021109353A1 (en) | 2021-06-10 |
| CN111158516A (en) | 2020-05-15 |
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