CN115202508A - Touch circuit and touch equipment - Google Patents
Touch circuit and touch equipment Download PDFInfo
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- CN115202508A CN115202508A CN202210771207.3A CN202210771207A CN115202508A CN 115202508 A CN115202508 A CN 115202508A CN 202210771207 A CN202210771207 A CN 202210771207A CN 115202508 A CN115202508 A CN 115202508A
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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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
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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
- G06F3/0447—Position sensing using the local deformation of sensor cells
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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
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
- G06F3/04886—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures by partitioning the display area of the touch-screen or the surface of the digitising tablet into independently controllable areas, e.g. virtual keyboards or menus
Abstract
The embodiment of the application relates to the technical field of touch control, and discloses a touch control circuit and touch control equipment, wherein the touch control circuit comprises a first ITO pattern area, a second ITO pattern area and a touch control chip; the first ITO pattern area comprises m rows of first driving electrode patterns and n rows of first sensing electrode patterns which are arranged in an array mode, the m rows of first driving electrode patterns are connected with the touch chip through m driving channels, and the n rows of first sensing electrode patterns are connected with the touch chip through n sensing channels; the second ITO pattern area comprises m rows of second driving electrode patterns and r rows of second sensing electrode patterns which are arranged in an array mode, the column space between two adjacent rows of second driving electrode patterns corresponds to the position of a preset virtual key, the m rows of second driving electrode patterns are connected with the m rows of first driving electrode patterns through metal wires respectively, and the r rows of second sensing electrode patterns are connected with the touch control chip through r sensing channels.
Description
Technical Field
The embodiment of the application relates to the technical field of touch control, in particular to a touch control circuit and touch control equipment.
Background
The touch technology is an interaction technology widely applied between people, between people and machines, even between machines, and is one of core technologies in the digital era, with the ever-increasing innovative development of the touch technology, products carrying the touch technology are increasingly incorporated into every industry of the society, a display touch area (such as a touch screen, a touch panel and the like) is one of the most successful applications of the touch technology, a mutual capacitance touch Circuit is a commonly used touch technology, a driving channel and a sensing channel are distributed in a screen lower area corresponding to a display screen in the form of etched Indium Tin Oxide (ITO) patterns, and the driving channel and the sensing channel are connected to a touch chip through a Flexible Printed Circuit (FPC) flat cable, and the coordinate position of a touch point is positioned by the touch chip according to the change of capacitance value, so that touch interaction is realized.
With the wide application of touch technology in products such as electronic consumer products, medical products, automobiles, public facilities, entertainment products, industrial equipment and the like, a single display touch area cannot meet the touch interaction requirements of people, and people need to arrange more touch sensing virtual key areas outside the display touch area to meet the touch requirements.
In order to adapt to a larger touch sensing area, an ITO pattern area may be extended downward, that is, a certain number of ITO patterns are etched, but the shape of a virtual Key area actually required by a product is not regular, and often exceeds the regulation of a display touch area, the downward-extended ITO pattern cannot cover the virtual Key area, and the product has no universality.
Disclosure of Invention
An object of the embodiments of the present application is to provide a touch circuit and a touch device, which can meet touch requirements of virtual key regions with different arrangement shapes and different virtual key numbers, occupy less channel resources, have a very low processing cost, and have a very strong universality.
In order to solve the above technical problem, an embodiment of the present application provides a touch circuit, where the touch circuit includes a first ITO pattern area, a second ITO pattern area, and a touch chip; the first ITO pattern area comprises m columns of first driving electrode patterns and n rows of first sensing electrode patterns which are arranged in an array mode, the m columns of first driving electrode patterns are connected with the touch chip through m driving channels, and the n rows of first sensing electrode patterns are connected with the touch chip through n sensing channels; wherein m and n are integers greater than 1; the second ITO pattern area comprises m rows of second driving electrode patterns and r rows of second sensing electrode patterns which are arranged in an array mode, the column spacing between two adjacent rows of the second driving electrode patterns corresponds to the position of a preset virtual key, the m rows of the second driving electrode patterns are respectively connected with the m rows of the first driving electrode patterns through metal wires, and the r rows of the second sensing electrode patterns are connected with the touch chip through r sensing channels; wherein r is an integer greater than 1.
The embodiment of the application also provides touch equipment, which comprises a display touch area, a cover plate and the touch circuit, wherein the cover plate is provided with a virtual key area, and the touch circuit comprises a first ITO (indium tin oxide) pattern area, a second ITO pattern area and a touch chip; the first ITO pattern area corresponds to the display touch area, and is arranged below the display touch area; the second ITO pattern area corresponds to the virtual key area, and the second ITO pattern area is arranged below the virtual key area of the cover plate.
The touch circuit comprises a touch chip, a first ITO pattern area and a second ITO pattern area, wherein the first ITO pattern area comprises m rows of first driving electrode patterns and n rows of first sensing electrode patterns which are arranged in an array; the second ITO pattern area comprises m rows of second driving electrode patterns and r rows of second sensing electrode patterns which are arranged in an array mode, the column spacing between two adjacent rows of second driving electrode patterns corresponds to the position of a preset virtual Key, the m rows of second driving electrode patterns are respectively connected with the m rows of first driving electrode patterns through metal wires, the r rows of second sensing electrode patterns are connected with a touch chip through r sensing channels, considering that a touch circuit in the industry can select a downward extending ITO pattern area in order to adapt to a larger touch sensing area, but the extending ITO patterns cannot cover the virtual Key area, if a special ITO Key pattern is arranged in a channel, the touch chip supporting the Key function must be replaced, the cost is high, the embodiment of the application designs the second ITO pattern area independently to meet the touch requirement of the virtual Key, the column spacing of the driving electrode patterns in the second ITO pattern area is determined according to the position of the preset virtual Key, the touch requirement of virtual Key areas with different arrangement shapes and different virtual Key quantities can be met, the second ITO pattern area has a strong touch requirement, the second ITO pattern area is connected to the ITO driving electrode patterns, and the ITO driving electrode patterns do not need to support the common driving chip through the ITO driving circuit, and the ITO driving circuit does not use the ITO driving circuit.
In addition, every first drive electrode pattern all with two at least first response electrode pattern is adjacent, every second drive electrode pattern all with two at least second response electrode pattern is adjacent, and what this application adopted is mutual capacitive touch-control technique, no matter be first ITO pattern region or second ITO pattern region, every drive electrode pattern all need be adjacent with two at least response electrode patterns to guarantee to constitute biggest touch-control area with the ITO pattern of etching, reduce touch-control circuit's processing cost.
In addition, the number of the second driving electrode patterns in each row is r +1, the number of the second sensing electrode patterns in each row is at least m +1, and the number of the second sensing electrode patterns in each row is at most 2m, in the second ITO pattern region of the present application, the distance between two adjacent rows of the second driving electrode patterns corresponds to the position of the preset virtual key, and the second driving electrode patterns are not simply arranged adjacently, when the distance between two adjacent rows of the second driving electrode patterns is smaller, it is ensured that each second driving electrode pattern is at least adjacent to two second sensing electrode patterns by sharing some second sensing electrode patterns, but when the distance between two adjacent rows of the second driving electrode patterns is larger, it is impossible to share the second sensing electrode patterns, the number of the second sensing electrode patterns must be increased, and at most 2m × r second sensing electrode patterns are used, it is ensured that each second driving electrode pattern is at least adjacent to two second sensing electrode patterns.
In addition, the first ITO pattern area corresponds to a preset display touch area, the area of the first ITO pattern area is the same as that of the display touch area, the m rows of first driving electrode patterns and the n rows of first sensing electrode patterns are arranged in an array to be paved in the first ITO pattern area, the column space between the first driving electrode patterns is the same in every two adjacent rows, the row space between the first sensing electrode patterns in every two adjacent rows is the same, the first ITO pattern area corresponds to the display touch area, and the whole area of the display touch area is an effective touch area, so that the m rows of first driving electrode patterns and the n rows of first sensing electrode patterns arranged in the array need to be paved in the first ITO pattern area, that is, the corresponding paving of the whole display touch area can meet the touch requirement, the column space between the first driving electrode patterns in every row is the same, and the row space between the first sensing electrode patterns in every row is the same, and it can be ensured that every position of the display touch area has good touch effect and touch sensitivity.
In addition, the line spacing between every two adjacent rows of second sensing electrode patterns is the same, and the line spacing between every two adjacent rows of second sensing electrode patterns is equal to the line spacing between every two adjacent rows of first sensing electrode patterns, in second ITO pattern region, although the row spacing between two adjacent columns of second drive electrode patterns is corresponding with the position of virtual key that predetermines, the line spacing between every two adjacent rows of first sensing electrode patterns in the first ITO pattern region of line spacing time domain between every two adjacent rows of second sensing electrode patterns is the same, can guarantee that virtual key region and demonstration touch region have same good touch-control effect and touch sensitivity.
In addition, the number of the first driving electrode patterns in each row is n +1, and the number of the first sensing electrode patterns in each row is m +1, so that the first driving electrode patterns and the first sensing electrode patterns are ensured to be fully paved in the whole display touch area.
In addition, the number of the second ITO pattern areas is t, t is an integer larger than 1, the m rows of second driving electrode patterns in the first second ITO pattern area are respectively connected with the m rows of first driving electrode patterns in the first ITO pattern area through metal wires, the ith row of second driving electrode patterns in the second ITO pattern area are respectively connected with the m rows of second driving electrode patterns in the i-1 second ITO pattern area through metal wires, i is an integer larger than 1 and smaller than or equal to t, virtual keys actually needed by a product are considered to be possibly distributed in different areas around the display touch area, the virtual keys cannot be covered by only one second ITO pattern area, therefore, even a plurality of second ITO pattern areas are provided, one of the second ITO pattern areas is connected with the first ITO pattern area through the metal wires, the whole touch circuit still occupies m driving channels of the touch chips, the application cost of the touch circuit is further reduced, and the application cost of the touch circuit is further lowered.
Drawings
One or more embodiments are illustrated by the corresponding figures in the drawings, which are not meant to be limiting.
FIG. 1 is a schematic diagram of a design of a mutual capacitance touch technology;
FIG. 2 is a schematic diagram of another design of a mutually-compatible touch technology;
FIG. 3 is a schematic diagram of another design of a mutually-compatible touch technology;
fig. 4 is a first schematic diagram of a touch circuit according to an embodiment of the present disclosure;
FIG. 5 is a schematic view of a first patterned ITO region and a second patterned ITO region according to an embodiment of the present application;
FIG. 6 is a schematic view of another patterned area of first and second ITO regions according to an embodiment of the present application;
fig. 7 is a second schematic diagram of a touch circuit according to an embodiment of the present disclosure;
FIG. 8 is a schematic view of a first patterned area and t second patterned areas of ITO provided by an embodiment of the present application;
fig. 9 is a top view of a touch device according to an embodiment of the present application.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in the examples of the present application, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments. The following embodiments are divided for convenience of description, and should not constitute any limitation to the specific implementation manner of the present application, and the embodiments may be mutually incorporated and referred to without contradiction.
A display touch area applying a mutual capacitance type touch technology needs to be fully covered with an ITO pattern area under the display touch area, fig. 1 shows a design of the mutual capacitance type touch technology, the ITO pattern area includes an ITO pattern used as a driving electrode and an ITO pattern used as an induction electrode, a white diamond pattern in fig. 1 is the ITO pattern used as the driving electrode, a diamond pattern filled with spots is the ITO pattern used as the induction electrode, the ITO pattern used as the driving electrode is connected with a touch chip through a driving channel, the ITO pattern used as the induction electrode is connected with the touch chip through an induction channel, a solid line with a direction in fig. 1 represents the driving channel, and a dotted line with a direction represents the induction channel.
However, with the development of touch technology, a single display touch area cannot meet the touch interaction requirements of people, people need to arrange more touch sensing virtual key areas outside the display touch area to meet the touch requirements, in order to adapt to a larger touch sensing area, a certain number of ITO patterns are etched after an ITO pattern area is extended downwards, as shown in fig. 2, in order to meet the newly added virtual key area, a technician lengthens an original ITO pattern area, but the width of the extended ITO pattern area is equal to that of the original ITO pattern area, while the shape of the newly added virtual key area is irregular, and often exceeds the regulation of the width of the display touch area, if the width of the newly added virtual key area exceeds the width of the display touch area, the extended ITO pattern area cannot cover the virtual key area, and effective touch cannot be achieved, so that the scheme has no universality.
Another scheme is to design a special ITO pattern for the virtual Key area based on the Key function of the touch chip, as shown in fig. 3, each virtual Key corresponds to a special ITO pattern, and the special ITO patterns are connected to the touch chip through a driving channel and are respectively connected to the touch chip through Key channels, which necessitates the touch chip to be the touch chip supporting the Key function and occupies a large amount of channel resources, and if the position of the virtual Key is changed, the special ITO pattern is redesigned, so that the cost for replacing the touch chip and the processing cost are very high.
In order to solve the problems that the touch circuit does not have universality, occupies too much channel resources, has too high processing cost, and the like, an embodiment of the present application provides a touch circuit, and the following details of the touch circuit of the embodiment are specifically described.
As shown in fig. 4, the touch circuit of this embodiment includes a first ITO pattern area 11, a second ITO pattern area 12, and a touch chip 13.
The first ITO pattern region 11 includes m columns of first driving electrode patterns and n rows of first sensing electrode patterns arranged in an array, where m and n are integers greater than 1, the m columns of first driving electrode patterns are connected to the touch chip 13 through m driving channels, a solid line 14 with a direction in fig. 4 is used to represent the driving channels, the n rows of first sensing electrode patterns are connected to the touch chip 13 through n sensing channels, and a dotted line 15 with a direction in fig. 4 is used to represent the sensing channels.
Specifically, when a user's finger touches the display touch area, the coupling between the driving electrode pattern and the sensing electrode pattern near the touch point is affected, so that the capacitance between the two electrode patterns is changed, and the touch chip transmits a driving signal to the driving electrode pattern through the driving channel and receives a sensing signal from the sensing electrode pattern through the sensing channel, so that the coordinates of the touch point are calculated according to the change of the capacitance of the display touch area.
The second ITO pattern region 12 includes m rows of second driving electrode patterns and r rows of second sensing electrode patterns arranged in an array, r is an integer greater than 1, a column pitch between two adjacent rows of second driving electrode patterns corresponds to a position of a preset virtual key, the m rows of second driving electrode patterns are respectively connected with the m rows of first driving electrode patterns of the first ITO pattern region 11 through metal lines, a dot-dash line 16 with a direction in fig. 4 is used to represent the metal lines, the r rows of second sensing electrode patterns are connected with the touch chip 13 through r sensing channels, and a dotted line 17 with a direction in fig. 4 is used to represent the sensing channels connecting the second sensing electrode patterns and the touch chip 13.
In the specific implementation, the first ITO pattern area is adapted to the touch requirement of the display touch area, the second ITO pattern area is adapted to the touch requirement of the virtual key area, and the column spacing of the driving electrode pattern of the second ITO pattern area is determined according to the position of the preset virtual key, so that the touch requirements of the virtual key areas with different arrangement shapes and different virtual key numbers can be met, and meanwhile, the driving electrode pattern of the second ITO pattern area is connected to the driving electrode pattern of the first ITO pattern area through a metal wire, that is, the first ITO pattern area and the second ITO pattern area use the same driving channel, and no additional driving channel resource is occupied.
In one example, the first driving electrode pattern, the first sensing electrode pattern, the second driving electrode pattern, and the second sensing electrode pattern are all single-layer diamond patterns.
In one example, the drive channels and sense channels are embodied in the form of FPC busses.
In this embodiment, the touch circuit includes a touch chip, a first ITO pattern area and a second ITO pattern area, the first ITO pattern area includes m rows of first driving electrode patterns and n rows of first sensing electrode patterns arranged in an array, the m rows of first driving electrode patterns are connected with the touch chip through m driving channels, and the n rows of first sensing electrode patterns are connected with the touch chip through n sensing channels; the second ITO pattern area comprises m columns of second driving electrode patterns and r rows of second sensing electrode patterns which are arranged in an array mode, the column spacing between every two adjacent columns of second driving electrode patterns corresponds to the position of a preset virtual Key, the m columns of second driving electrode patterns are connected with the m columns of first driving electrode patterns through metal wires respectively, the r rows of second sensing electrode patterns are connected with the touch chip through r sensing channels, considering that a touch circuit in the industry can select a downward extending ITO pattern area in order to adapt to a larger touch sensing area, but the extending ITO patterns cannot cover the virtual Key area, if a Key channel is used for setting a special ITO pattern, the touch chip supporting the Key function must be replaced, the cost is too high, the embodiment of the application designs the second ITO pattern area independently to meet the touch requirement of the virtual Key piece, the column spacing of the driving electrode patterns in the second ITO pattern area is determined according to the position of the preset virtual Key, the touch chip supporting the Key function can meet the touch requirement of virtual Key areas with different arrangement shapes and different virtual Key quantities, the second ITO pattern area has very strong common touch requirements, the second ITO pattern area is connected to the second driving electrode patterns, the second ITO pattern area does not need to support the ITO driving electrode patterns, and the ITO driving electrode patterns, and the ITO driving patterns do not need to use the same drive chip with the same drive chip, and the ITO channel.
In one embodiment, each first driving electrode pattern in the first ITO pattern region is at least adjacent to two first sensing electrode patterns, each second driving electrode pattern in the second ITO pattern region is at least adjacent to two second sensing electrode patterns, and the first ITO pattern region and the second ITO pattern region may be as shown in fig. 5.
In a specific implementation, a first ITO pattern area corresponds to a preset display touch area, the area of the first ITO pattern area is the same as the area of the display touch area, m columns of first driving electrode patterns and n rows of first sensing electrode patterns arranged in an array are all paved in the first ITO pattern area, white diamond blocks in the first ITO pattern area represent the first driving electrode patterns, spots in the first ITO pattern area fill the diamond blocks to represent the first sensing electrode patterns, as shown in fig. 5, the column space between two adjacent columns of first driving electrode patterns is the same, the row space between two adjacent rows of first sensing electrode patterns is the same, the first ITO pattern area corresponds to the display touch area, the whole display touch area is an effective touch area, therefore, the m columns of first driving electrode patterns and the n rows of first sensing electrode patterns arranged in an array need to be paved in the first ITO pattern area, that the whole display touch area correspondingly can meet the touch requirement, the column of first driving electrode patterns are all effective touch areas, the column space between the first sensing electrode patterns is the same, the first sensing electrode patterns in the m columns of the array are all the same, and the row space between the first sensing electrode patterns can guarantee that each display touch area and each touch area has a good touch effect.
In one example, the number of the first driving electrode patterns in each column of the first ITO pattern area is n +1, and the number of the first sensing electrode patterns in each row is m +1, so that the entire display touch area may be covered.
In one example, the line pitch between every two adjacent second sensing electrode patterns in the second ITO pattern region is the same, and the line pitch between every two adjacent second sensing electrode patterns is equal to the line pitch between every two adjacent first sensing electrode patterns in the first ITO pattern region, in the second ITO pattern region, although the column pitch between every two adjacent second driving electrode patterns corresponds to the position of the preset virtual key, the line pitch between every two adjacent second sensing electrode patterns in the time domain of the line pitch between every two adjacent second sensing electrode patterns in the first ITO pattern region is the same, so that the virtual key region and the display touch region can have the same good touch effect and touch sensitivity.
In one example, the number of the second driving electrode patterns in each column of the second ITO pattern region is r +1, the number of the second sensing electrode patterns in each row is at least m +1, and the number of the second sensing electrode patterns in each row is at most 2m, in the second ITO pattern region shown in fig. 5, the column pitch between the second driving electrode pattern in the 3 rd column and the second driving electrode pattern in the 4 th column is relatively close, the second sensing electrode patterns can be shared, the column pitch between the second driving electrode pattern in the 3 rd column and the second driving electrode pattern in the 4 th column is relatively far, there is no way to share the second sensing electrode patterns, the second ITO pattern region shown in fig. 5 has 6 columns of second driving electrode patterns, the number of the second sensing electrode patterns in each row is required to be 10 in a shared manner, therefore, when the column pitch between two adjacent columns of second driving electrode patterns is relatively close, the number of the second sensing electrode patterns in each row is m +1, which is also the arrangement manner between the first driving electrode patterns and the first sensing electrode patterns in the first ITO pattern region, and when the column pitch between two adjacent columns of second driving electrode patterns is relatively far, such as the first ITO pattern region and the second ITO pattern region shown in fig. 6, in order to ensure that each second driving electrode pattern is at least adjacent to two second sensing electrode patterns, the number of the second sensing electrode patterns in each row is required to be 2m, and the second ITO pattern region shown in fig. 6 has 6 columns of second driving electrode patterns in total, because the second sensing electrode patterns cannot be shared, the number of the second sensing electrode patterns in each row is required to be 12.
In one embodiment, the number of the second ITO pattern regions is t, t is an integer greater than 1, m columns of the second driving electrode patterns of the first ITO pattern region are respectively connected with m columns of the first driving electrode patterns of the first ITO pattern region through metal lines, m columns of the second driving electrode patterns of the ith second ITO pattern region are respectively connected with m columns of the second driving electrode patterns of the i-1 th second ITO pattern region through metal lines, and i is an integer greater than 1 and less than or equal to t.
In an example, as shown in fig. 7, the touch circuit provided in this embodiment includes a first ITO pattern area 21, a second ITO pattern area a 221, a second ITO pattern area b 222, and a touch chip 23, where the second ITO pattern area a 221 is disposed on the south side of the first ITO pattern area 21, and the second ITO pattern area b 222 is disposed on the left side of the first ITO pattern area 21.
The m columns of first driving electrode patterns in the first ITO pattern region 21 are connected to the touch chip 23 through m driving channels, the solid line 24 with the tape direction in fig. 7 is used to represent the driving channels, the n rows of first sensing electrode patterns are connected to the touch chip 23 through n sensing channels, and the dotted line 25 with the tape direction in fig. 7 is used to represent the sensing channels.
M rows of second driving electrode patterns in the second ITO pattern region a 221 are respectively connected to m rows of first driving electrode patterns in the first ITO pattern region 21 through metal lines, a dot-dash line 26 with a direction in fig. 7 is used to represent the metal lines, r rows of second sensing electrode patterns are connected to the touch chip 23 through r sensing channels, and a dashed line 27 with a direction in fig. 7 is used to represent the sensing channels.
The m rows of second driving electrode patterns in the second ITO pattern region b 222 are respectively connected to the m rows of second driving electrode patterns in the second ITO pattern region 221 through metal lines, a dot-dash line 28 with a direction in fig. 7 is used to represent the metal lines, r rows of second sensing electrode patterns are connected to the touch chip 23 through r sensing channels, and a dotted line 29 with a direction in fig. 7 is used to represent the sensing channels.
In one example, the second sensing electrode patterns of the second ITO pattern region b 222 may also be connected to the first sensing electrode patterns of the first ITO pattern region 21 through metal lines, sharing a sensing channel.
In one example, the connection between the first ITO pattern region and the t second ITO pattern regions may be as shown in fig. 8, where fig. 8 shows two second ITO pattern regions, the first ITO pattern region and the t second ITO pattern regions share a driving channel, where the second ITO pattern region b uses only two driving channels, and the second sensing electrode pattern is juxtaposed to the first sensing electrode pattern of the first ITO pattern region, and thus may be connected to the first sensing electrode pattern through a metal line, i.e., share a sensing channel with the first ITO pattern region.
In this embodiment, considering that virtual keys actually required by a product may be distributed in different areas around the display touch area, only one second ITO pattern area is not capable of covering the virtual keys, and therefore, in the present application, even a plurality of second ITO pattern areas, one of the second ITO pattern areas is connected with the first ITO pattern area through a metal wire, and the other second ITO pattern areas are connected with the second ITO pattern area in front through a metal wire, the whole touch circuit still only occupies m driving channels of the touch chip, thereby further improving the application scenario and universality of the touch circuit, and further reducing the processing cost.
It should be noted that the above-mentioned embodiments do not introduce elements or components which are not so closely related to solve the technical problems presented in the present application in order to highlight the innovative part of the present application, but this does not indicate that no other elements or components are present in the above-mentioned embodiments.
Another embodiment of the present application provides a touch device, which is described in detail below, and the following only provides implementation details for facilitating understanding of the implementation details, but not necessary to implement the present application, the touch device of the present embodiment includes a display touch area, a cover plate, and a touch circuit, where the cover plate is provided with a virtual key area, the touch circuit includes a first ITO pattern area, a second ITO pattern area, and a touch chip, the first ITO pattern area in the touch circuit corresponds to the display touch area, the first ITO pattern area is disposed below the display touch area, the second ITO pattern area in the touch circuit corresponds to the virtual key area, and the second ITO pattern area is disposed below the virtual key area of the cover plate.
In an example, as shown in fig. 9, the top view of the touch device may be a complete block, the cover 32 has the display touch area 31 embedded in the cover 32, and the virtual key area 321 is disposed on the cover 32, and the virtual key area 321 is located on the south side of the display touch area 31.
In one example, the number of the second ITO pattern areas is t, the number of the virtual key areas arranged on the cover plate is also t, t is an integer greater than 1, each second ITO pattern area corresponds to one virtual key area, the virtual key areas corresponding to different second ITO pattern areas are different, and each second ITO pattern area is respectively arranged below the corresponding virtual key area on the cover plate.
It should be noted that the above-mentioned embodiments do not introduce elements or components which are not so closely related to solve the technical problems presented in the present application in order to highlight the innovative part of the present application, but this does not indicate that no other elements or components are present in the above-mentioned embodiments.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the present application, and that various changes in form and details may be made therein without departing from the spirit and scope of the present application in practice.
Claims (10)
1. A touch circuit is characterized by comprising a first Indium Tin Oxide (ITO) pattern area, a second ITO pattern area and a touch chip;
the first ITO pattern area comprises m columns of first driving electrode patterns and n rows of first sensing electrode patterns which are arranged in an array mode, the m columns of first driving electrode patterns are connected with the touch chip through m driving channels, and the n rows of first sensing electrode patterns are connected with the touch chip through n sensing channels; wherein m and n are integers greater than 1;
the second ITO pattern area comprises m rows of second driving electrode patterns and r rows of second sensing electrode patterns which are arranged in an array mode, the column spacing between two adjacent rows of the second driving electrode patterns corresponds to the position of a preset virtual key, the m rows of the second driving electrode patterns are respectively connected with the m rows of the first driving electrode patterns through metal wires, and the r rows of the second sensing electrode patterns are connected with the touch chip through r sensing channels; wherein r is an integer greater than 1.
2. The touch circuit of claim 1, wherein each of the first driving electrode patterns is at least adjacent to two of the first sensing electrode patterns, and wherein each of the second driving electrode patterns is at least adjacent to two of the second sensing electrode patterns.
3. The touch circuit of claim 1, wherein the number of the second driving electrode patterns in each column is r +1, the number of the second sensing electrode patterns in each row is at least m +1, and the number of the second sensing electrode patterns in each row is at most 2 m.
4. The touch circuit of claim 1, wherein the first ITO pattern region corresponds to a predetermined display touch region, the area of the first ITO pattern region is the same as the area of the display touch region, the m columns of the first driving electrode patterns and the n rows of the first sensing electrode patterns arranged in the array are spread over the first ITO pattern region, the column pitch between two adjacent columns of the first driving electrode patterns is the same, and the row pitch between two adjacent rows of the first sensing electrode patterns is the same.
5. The touch circuit of claim 4, wherein a line pitch between every two adjacent rows of the second sensing electrode patterns is the same, and the line pitch between every two adjacent rows of the second sensing electrode patterns is equal to a line pitch between every two adjacent rows of the first sensing electrode patterns.
6. The touch circuit of claim 4, wherein the number of the first driving electrode patterns in each column is n +1, and the number of the first sensing electrode patterns in each row is m + 1.
7. The touch circuit according to any one of claims 1 to 6, wherein the number of the second ITO pattern areas is t, and t is an integer greater than 1, the m columns of second driving electrode patterns of a first one of the second ITO pattern areas are respectively connected with the m columns of first driving electrode patterns of the first ITO pattern area through metal wires, the m columns of second driving electrode patterns of an ith one of the second ITO pattern areas are respectively connected with the m columns of second driving electrode patterns of the i-1 th one of the second ITO pattern areas through metal wires, and i is an integer greater than 1 and less than or equal to t.
8. The touch circuit of any one of claims 1-6, wherein the first driving electrode pattern, the first sensing electrode pattern, the second driving electrode pattern, and the second sensing electrode pattern are all single-layer diamond patterns.
9. Touch equipment, which is characterized by comprising a display touch area, a cover plate and a touch circuit according to any one of claims 1 to 8, wherein the cover plate is provided with a virtual key area, and the touch circuit comprises a first Indium Tin Oxide (ITO) pattern area, a second ITO pattern area and a touch chip;
the first ITO pattern area corresponds to the display touch area, and is arranged below the display touch area;
the second ITO pattern area corresponds to the virtual key area, and the second ITO pattern area is arranged below the virtual key area of the cover plate.
10. The touch device according to claim 9, wherein the number of the second ITO pattern areas is t, the number of the virtual key areas disposed on the cover plate is also t, t is an integer greater than 1, each of the second ITO pattern areas corresponds to one of the virtual key areas, the virtual key areas corresponding to different second ITO pattern areas are different, and each of the second ITO pattern areas is disposed below the corresponding virtual key area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210771207.3A CN115202508A (en) | 2022-06-30 | 2022-06-30 | Touch circuit and touch equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210771207.3A CN115202508A (en) | 2022-06-30 | 2022-06-30 | Touch circuit and touch equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115202508A true CN115202508A (en) | 2022-10-18 |
Family
ID=83578554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210771207.3A Pending CN115202508A (en) | 2022-06-30 | 2022-06-30 | Touch circuit and touch equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115202508A (en) |
-
2022
- 2022-06-30 CN CN202210771207.3A patent/CN115202508A/en active Pending
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