CN114442853B - Touch panel and touch display screen - Google Patents
Touch panel and touch display screen Download PDFInfo
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- CN114442853B CN114442853B CN202210109239.7A CN202210109239A CN114442853B CN 114442853 B CN114442853 B CN 114442853B CN 202210109239 A CN202210109239 A CN 202210109239A CN 114442853 B CN114442853 B CN 114442853B
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- 230000000694 effects Effects 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 12
- 238000009826 distribution Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
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- 235000019646 color tone Nutrition 0.000 description 1
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- 238000009827 uniform distribution Methods 0.000 description 1
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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
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Abstract
The embodiment of the application provides a touch panel and a touch display screen, and relates to the technical field of touch. The touch panel comprises electrode units which are uniformly distributed, fingerprint electrodes for realizing the fingerprint function are formed by the electrode units, and the touch electrodes for realizing the touch function consist of touch electrode blocks formed by a plurality of mutually connected electrode units. Therefore, the fingerprint electrodes and the touch electrodes with different electrode density requirements are formed by adopting the uniformly distributed electrode units, and the electrode units are uniformly distributed in the touch panel, so that the uniformity of light emission can not be reduced to improve the display effect when light passes through the touch panel, and the use experience of a user is further improved.
Description
Technical Field
The application relates to the technical field of touch control, in particular to a touch panel and a touch display screen.
Background
With the development of communication technology, electronic devices are widely used in daily life, and touch technology is widely used in electronic devices (such as smart phones, tablet computers, etc.) as an important technical branch of man-machine interaction, and in order to improve the security performance of electronic devices, fingerprint identification technology is also used in electronic devices. In order to enable the electronic equipment to have both the touch control function and the fingerprint identification function, the touch control module and the fingerprint identification module are required to be integrated together when the display screen is manufactured, and as the fingerprint identification module has higher requirements on the identification precision of signals, the electrode density in the fingerprint identification module can be greater than that in the touch control module, so that the uniformity of light emission is poor due to the fact that the electrode densities of different areas are different when the display screen emits light, the display effect of the display screen is reduced, and the use experience of a user is affected.
Disclosure of Invention
In order to overcome the technical problems mentioned in the background, embodiments of the present application provide a touch panel and a touch display screen.
In a first aspect of the present application, a touch panel is provided, the touch panel having a touch area and a fingerprint area that are adjacently disposed, the touch panel including electrode units that are uniformly distributed;
the fingerprint area is provided with fingerprint electrodes, and the fingerprint electrodes comprise one or electrode units which are arranged along a straight line and are connected with each other;
The touch area is provided with touch electrodes, the touch electrodes comprise one or a plurality of touch electrode blocks which are arranged along a straight line and are connected, and the touch electrode blocks comprise a plurality of electrode units which are arranged in an array.
In the structure, the touch panel comprises the electrode units which are uniformly distributed, the fingerprint electrodes and the touch electrodes with different electrode density requirements are formed by adopting the electrode units which are uniformly distributed, and the electrode units are uniformly distributed in the touch panel, so that the uniformity of light emission can not be reduced when light passes through the touch panel, the display effect can be improved, and the use experience of a user is improved.
The fingerprint electrode comprises a first fingerprint electrode and a second fingerprint electrode, the first fingerprint electrode comprises a plurality of electrode units which are sequentially connected along a first direction, and the second fingerprint electrode comprises a plurality of electrode units which are sequentially connected along a second direction, wherein the first direction is intersected with the second direction;
The touch electrode comprises a first touch electrode and a second touch electrode which are arranged in a crossed mode, the first touch electrode and the second touch electrode respectively comprise a plurality of touch electrode blocks, and each touch electrode block comprises a plurality of electrode units which are connected with each other.
In one possible embodiment of the present application, the electrode units of the first fingerprint electrode and the electrode units of the second fingerprint electrode are arranged in the same layer, and the fingerprint area is further provided with a first bridging line, and the first bridging line is used for connecting adjacent electrode units in the first fingerprint electrode or adjacent electrode units in the second fingerprint electrode;
The touch area is provided with a second bridging line, and the second bridging line is used for connecting adjacent touch electrode blocks in the first touch electrode or adjacent touch electrode blocks in the second touch electrode.
In one possible embodiment of the present application, the touch panel includes a dielectric layer, the electrode units include a first electrode unit and a second electrode unit separately disposed at two sides of the dielectric layer, the first electrode unit and the second electrode unit are staggered, the first fingerprint electrode includes a first electrode unit, and the second fingerprint electrode includes a second electrode unit;
The touch electrode block comprises a plurality of first electrode units arranged in an array, a plurality of second electrode units arranged in an array and a connecting structure penetrating through the dielectric layer, wherein the connecting structure is used for connecting the first electrode units and the second electrode units in the same touch electrode block.
In one possible embodiment of the present application, the first touch electrode is disposed along a third direction, and the second touch electrode is disposed along a fourth direction, where the third direction intersects the fourth direction;
the third direction and the first direction form a preset included angle.
In one possible embodiment of the present application, the third direction is perpendicular to the fourth direction, the first direction is perpendicular to the second direction, and the preset included angle between the third direction and the first direction is 45 degrees.
In one possible embodiment of the present application, the touch area is surrounded on the periphery of the fingerprint area, and the fingerprint area is further provided with a first touch connection line and a second touch connection line, where the first touch connection line, the second touch connection line, the first fingerprint electrode and the second fingerprint electrode are insulated from each other;
In the third direction, touch electrode blocks positioned at two opposite ends of the fingerprint area are connected through the first touch connecting wire to form the first touch electrode;
in the fourth direction, the touch electrode blocks positioned at two opposite ends of the fingerprint area are connected through the second touch connecting wire to form the second touch electrode.
In one possible embodiment of the present application, the touch panel further includes a panel chip, and the first touch electrode, the second touch electrode, the first fingerprint electrode, and the second fingerprint electrode are connected to the same panel chip through corresponding leads, respectively;
The panel chip is configured to provide a touch drive signal for the first touch electrode, a touch sense signal for the second touch electrode, a fingerprint drive signal for the first fingerprint electrode, and a fingerprint sense signal for the second fingerprint electrode.
In one possible embodiment of the present application, the first fingerprint electrode and the second fingerprint electrode are multiplexed into a touch electrode; the panel chip is further configured to provide a touch driving signal for the first fingerprint electrode and a touch sensing signal for the second fingerprint electrode, wherein at the same time, the panel chip provides a fingerprint driving signal for only the first fingerprint electrode and a fingerprint sensing signal for the second fingerprint electrode, or provides a touch driving signal for only the first fingerprint electrode and a touch sensing signal for the second fingerprint electrode.
In one possible embodiment of the application, the shape of the electrode unit is circular, semicircular, triangular, square, rectangular or elliptical.
In a second aspect of the present application, a touch display screen is provided, where the touch display screen includes the touch panel of the first aspect.
Compared with the prior art, the touch panel and the touch display screen provided by the embodiment of the application have the advantages that the touch panel comprises the electrode units which are uniformly distributed, the fingerprint electrode for realizing the fingerprint function is formed by one or a plurality of connected electrode units, and the touch electrode for realizing the touch function consists of the touch electrode block formed by a plurality of mutually connected electrode units. Therefore, the fingerprint electrodes and the touch electrodes with different electrode density requirements are formed by adopting the uniformly distributed electrode units, and the electrode units are uniformly distributed in the touch panel, so that the uniformity of light emission can not be reduced to improve the display effect when light passes through the touch panel, and the use experience of a user is further improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of one possible distribution of a touch area and a fingerprint area of a touch panel according to an embodiment of the present application;
fig. 2 is a schematic diagram of electrode distribution of a touch panel according to an embodiment of the present application;
FIG. 3 is a schematic diagram illustrating the distribution of the electrodes after the touch area and the fingerprint area in FIG. 2 are separated;
FIG. 4 is a schematic diagram of a connection relationship between electrode units according to an embodiment of the present application;
FIG. 5 is a second schematic diagram of the connection relationship of the electrode unit according to an embodiment of the present application;
FIG. 6 is a schematic diagram of a connection relationship between touch electrode blocks according to an embodiment of the present application;
FIG. 7 is a schematic diagram showing a connection relationship between touch electrode blocks according to an embodiment of the present application;
fig. 8 is a schematic diagram of connection relation of a touch electrode block according to another embodiment of the present application;
fig. 9 is a schematic diagram of signal line connection of a touch panel according to an embodiment of the application.
Icon: 10-a touch panel; 101-a touch area; 1001-electrode unit; 1011-a first touch electrode; 1012-a second touch electrode; 101 a-a touch electrode block; 101 b-a first touch connection line; 101 c-a second touch connection line; 102-a fingerprint area; 1021-a first fingerprint electrode; 1022-second finger electrode; 1023-a first bridging line; 1024-second bridging lines; 10011-a first electrode unit; 10012-a second electrode unit; 10013-a connection structure; 103-a dielectric layer; 130-panel chip.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present application, it should be noted that, the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship that is commonly put in use of the product of the application, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
It should be noted that, in the case of no conflict, different features in the embodiments of the present application may be combined with each other.
In order to solve the technical problems mentioned in the background art, the embodiment of the application innovatively adopts the uniformly distributed electrode units to form the fingerprint electrodes and the touch electrodes with different electrode density requirements, thereby achieving the purpose that the uniformity of light emission is not reduced when light passes through the touch panel.
In the embodiment of the application, the touch panel is provided with the touch area and the fingerprint area which are adjacently arranged, and the electrode units are uniformly distributed on the whole touch panel. Wherein, fingerprint electrodes are arranged in the fingerprint area, and each fingerprint electrode comprises one or electrode units which are arranged along a straight line and are connected with each other; the touch control area is provided with touch control electrodes, the touch control electrodes comprise one or connected touch control electrode blocks which are arranged along a straight line, and the touch control electrode blocks comprise a plurality of electrode units which are arranged in an array. For example, based on different sensing principles, the fingerprint electrode and the touch electrode have different connection structures, for example, when based on self-capacitance sensing principles, the fingerprint electrode may include one electrode unit, and the touch electrode may also include one touch electrode block; for another example, when based on the mutual capacitance sensing principle, the fingerprint electrode may be composed of electrode units which are arranged along a straight line and connected, and the touch electrode may be composed of touch electrode blocks which are arranged along a straight line and connected.
Above-mentioned design, touch panel includes evenly distributed's electrode unit, adopts evenly distributed's electrode unit to form fingerprint electrode and the touch electrode that different electrode density required, because of electrode unit evenly distributed in touch panel, when light passed touch panel, can not reduce the homogeneity of light-emitting, can improve the display effect, promotes user's use experience.
The following describes the specific implementation of the present application in detail by taking mutual capacitance sensing principle as an example, and referring to the attached drawings.
In order to better describe the technical solution provided by the embodiment of the present application, please refer to fig. 1, fig. 2 and fig. 3, fig. 1 shows a possible distribution diagram of a touch area and a fingerprint area of the touch panel provided by the embodiment of the present application, fig. 2 shows an electrode distribution diagram of the touch panel provided by the embodiment of the present application, and fig. 3 shows an electrode distribution diagram after the touch area and the fingerprint area are separated in fig. 2.
In an embodiment of the present application, the touch panel 10 may include a touch area 101 and a fingerprint area 102, where the touch area 101 and the fingerprint area 102 are disposed adjacent to each other. For example, a portion of the sides of the fingerprint region 102 may be adjacent to the touch region 101, or all of the sides may be adjacent to the touch region 101. The touch panel 10 further comprises electrode units 1001 that are uniformly distributed, i.e. the electrode units 1001 are distributed identically in the fingerprint area 102 and the touch area 101. Wherein, uniform distribution may mean that the interval between any adjacent two electrode units 1001 is the same or substantially the same; or, the number of electrode units 1001 provided in a set unit area is the same and the size of the electrode units 1001 is the same. In the embodiment of the present application, the electrode units 1001 may be uniformly distributed on the touch panel 10 in an array arrangement manner.
The fingerprint region 102 is provided with a first fingerprint electrode 1021 and a second fingerprint electrode 1022, the first fingerprint electrode 1021 may include a plurality of electrode units 1001 sequentially connected in a first direction, and the second fingerprint electrode 1022 may include a plurality of electrode units 1001 sequentially connected in a second direction, wherein the first direction and the second direction intersect.
The touch area 101 is provided with a first touch electrode 1011 and a second touch electrode 1012, the first touch electrode 1011 and the second touch electrode 1012 are arranged in a crossing manner, the first touch electrode 1011 and the second touch electrode 1012 respectively comprise a plurality of touch electrode blocks 101a, each touch electrode block 101a comprises a plurality of electrode units 1001 which are arranged in an array manner and are connected with each other, and all the electrode units 1001 in the touch electrode block 101a are connected together to form a whole.
In the above structure provided by the embodiment of the application, the touch panel 10 includes uniformly distributed electrode units 1001, the first fingerprint electrode 1021 and the second fingerprint electrode 1022 are formed by connecting the electrode units 1001 in different directions, and the first touch electrode 1011 and the second touch electrode 1012 are composed of a touch electrode block 101a formed by a plurality of mutually connected electrode units 1001. In this way, fingerprint electrodes and touch electrodes with different electrode density requirements can be formed by adopting the electrode units 1001 which are uniformly distributed, and the electrode units 1001 are uniformly distributed in the touch panel 10, so that the uniformity of light emission can not be influenced when light passes through the touch panel 10, the display effect can be ensured, and the use experience of a user can be improved.
In one implementation of the embodiment of the present application, referring to fig. 4 to 7, the electrode unit 1001 of the first fingerprint electrode 1021 and the electrode unit 1001 of the second fingerprint electrode 1022 may be disposed in the same layer, and specifically, in this implementation, the electrode unit 1001 may be fabricated by using the same metal layer. Since the first fingerprint electrode 1021 and the second fingerprint electrode 1022 are arranged in a crossing manner, in order to avoid shorting the first fingerprint electrode 1021 to the second fingerprint electrode 1022, the fingerprint region 102 further includes a first bridging line 1023 of a different layer from the electrode unit 1001, and in detail, when the electrode unit 1001 in the first fingerprint electrode 1021 is connected to the electrode unit 1001 by a wire of the same layer as the electrode unit 1001 (as shown in fig. 4), the electrode unit 1001 in the second fingerprint electrode 1022 may be bridged by the first bridging line 1023 (as shown in fig. 5). Or when the electrode unit 1001 in the second fingerprint electrode 1022 is connected by a wire in the same layer as the electrode unit 1001 (as shown in fig. 4), the electrode unit 1001 in the first fingerprint electrode 1021 may be bridged by the first bridging wire 1023 (as shown in fig. 5). Meanwhile, the first touch electrode 1011 and the second touch electrode 1012 are arranged to cross each other, and based on this, in order to avoid the first touch electrode 1011 and the second touch electrode 1012 from shorting, the touch area 101 may further include a second bridging line 1024 of a different layer from the electrode unit 1001. For example, when adjacent ones of the first touch electrodes 1011 are connected by wires of the same layer as the electrode unit 1001 (as shown in fig. 6), adjacent ones of the second touch electrodes 1012 are bridged by the second bridging wires 1024 (as shown in fig. 7). Or when adjacent ones of the second touch electrodes 1012 are connected by wires of the same layer as the electrode unit 1001 (as shown in fig. 6), the adjacent ones of the second touch electrodes 101a may be bridged by the second bridging wires 1024 (as shown in fig. 7).
In another implementation manner of the embodiment of the present application, referring to fig. 8, the touch panel 10 may further include a dielectric layer 103, and the electrode units 1001 may include a first electrode unit 10011 and a second electrode unit 10012 respectively disposed on two sides of the dielectric layer 103, where the first electrode unit 10011 and the second electrode unit 10012 are staggered on two sides of the dielectric layer 103. As such, the first fingerprint electrode 1021 may include a first electrode unit 10011, and the second fingerprint electrode 1022 may include a second electrode unit 10012. Referring to fig. 8 again, in the touch electrode block 101a, the touch electrode block 101a may include a plurality of first electrode units 10011 arranged in an array and connected to each other, a plurality of second electrode units 10012 arranged in an array and connected to each other, and a connection structure 10013 penetrating through the dielectric layer 103, where the connection structure 10013 is used for connecting the first electrode units 10011 and the second electrode units 10012 in the same touch electrode block 101a, so that the first electrode units 10011 and the second electrode units 10012 in the same touch electrode block 101a are connected together.
Further, in the embodiment of the present application, the first touch electrode 1011 may be disposed along a third direction, and the second touch electrode 1012 may be disposed along a fourth direction, wherein the third direction intersects the fourth direction, and the third direction forms a preset included angle with the first direction. Referring to fig. 2 again, preferably, the first direction may be an X2 direction in the drawing, the second direction may be a Y2 direction in the drawing, the third direction may be an X1 direction in the drawing, and the fourth direction may be a Y1 direction in the drawing. The first direction may be perpendicular to the second direction, the third direction may be perpendicular to the fourth direction, and a preset included angle between the third direction and the first direction may be 45 degrees. It should be understood that the foregoing is merely illustrative of one possible implementation manner of the embodiment of the present application, and in other implementation manners, the first direction, the second direction, the third direction, and the fourth direction may have other positional relationships, for example, an included angle between the first direction and the second direction may be 60 degrees, an included angle between the third direction and the fourth direction may be 60 degrees, and an included angle between the first direction and the third direction may be 90 degrees.
In the embodiment of the present application, referring to fig. 3 again, as shown in fig. 3, a fingerprint area 102 may be surrounded by a touch area 101, and touch electrode blocks 101a are disposed around the fingerprint area 102. The fingerprint area 102 may further be provided with a first touch connection line 101b and a second touch connection line 101c. In the fingerprint region 102, the first touch connection line 101b, the second touch connection line 101c, the first fingerprint electrode 1021, and the second fingerprint electrode 1022 are all insulated from each other. In the third direction, the touch electrode blocks 101a at opposite ends of the fingerprint region 102 are connected by the first touch connection line 101b to form a first touch electrode 1011; in the fourth direction, the touch electrode blocks 101a at opposite ends of the fingerprint region 102 are connected by the second touch connection lines 101c to form the second touch electrodes 1012. Through the above arrangement, a touch connection line for touch sensing can be formed in the fingerprint area 102, so that the fingerprint area 102 can also realize a touch function, and a touch blind area is prevented from being formed in the fingerprint area 102.
Referring to fig. 9, in the embodiment of the present application, the touch function and the fingerprint recognition function may be implemented by one integrated chip, the touch panel 10 may further include a panel chip 130, the fingerprint electrode and the touch electrode may be connected to the same panel chip 130 through corresponding leads, and the panel chip 130 provides signals for the fingerprint electrode and the touch electrode at the same time. For example, the panel chip 130 may provide the touch driving signal Tx for the first touch electrode 1011, the touch sensing signal Rx for the second touch electrode 1012, the fingerprint driving signal FTx for the first fingerprint electrode 1021, and the fingerprint sensing signal FRx for the second fingerprint electrode 1022.
Although the first touch connection line 101b and the second touch connection line 101c located in the fingerprint area 102 can be used for performing touch recognition, the touch recognition accuracy relative to the touch area 101 is much lower due to the narrow line width of the first touch connection line 101b and the second touch connection line 101 c. To solve this problem, the present embodiment may multiplex the first fingerprint electrode 1021 and the second fingerprint electrode 1022 into touch electrodes, and for example, the panel chip 130 may be configured to provide the first fingerprint electrode 1021 with a touch driving signal Tx and the second fingerprint electrode 1022 with a touch sensing signal Rx, where at the same time, the panel chip 130 provides the first fingerprint electrode 1021 with only the fingerprint driving signal FTx and the second fingerprint electrode 1022 with the fingerprint sensing signal FRx, or provides the first fingerprint electrode 1021 with only the touch driving signal Tx and the second fingerprint electrode 1022 with the touch sensing signal Rx.
In the embodiment of the present application, the panel chip 130 may determine what signals are provided to the first fingerprint electrode 1021 and the second fingerprint electrode 1022 in the following two ways.
In the first way, a time period may be divided into three time periods T1, T2 and T3, wherein the panel chip 130 provides the touch driving signal Tx for the first fingerprint electrode 1021 and the touch sensing signal Rx for the second fingerprint electrode 1022 in the time period T1. The panel chip 130 does not supply signals to the first fingerprint electrode 1021 and the second fingerprint electrode 1022 during the T2 period. The first fingerprint electrode 1021 is provided with a fingerprint driving signal FTx and the second fingerprint electrode 1022 is provided with a fingerprint sensing signal FRx by the panel chip 130 in a T3 period. The time period (T2) without signal supply is arranged between the two time periods (T1 and T3) with signal supply, so that interference generated when signals are directly switched can be avoided.
In the second way, when the user triggers the fingerprint recognition function (e.g., fingerprint verification is required), the panel chip 130 provides the fingerprint driving signal FTx for the first fingerprint electrode 1021 and the fingerprint sensing signal FRx for the second fingerprint electrode 1022, and in other cases, the panel chip 130 provides the touch driving signal Tx for the first fingerprint electrode 1021 and the touch sensing signal Rx for the second fingerprint electrode 1022.
The above is merely an example of multiplexing the first fingerprint electrode 1021 and the second fingerprint electrode 1022 in the fingerprint region 102 through the panel chip 130, and multiplexing may be implemented in other manners in other embodiments. It is understood that any multiplexing mode of fingerprint electrodes based on the above-described concept of the embodiments of the present application should be within the scope of the present application.
Further, the shape of the electrode unit 1001 may be circular, semicircular, triangular, rectangular, elliptical, or the like, in addition to the square implementation shown in the above-described figures. The shape of the electrode unit 1001 refers to the overall outline pattern of the single electrode unit 1001, and its specific design can be flexibly adjusted, and it can be understood that, considering the actual design requirement and the process error, the shape of the electrode unit 1001 may be a geometric pattern that is not strictly defined. In other embodiments of the present application, the specific shape of the electrode unit 1001 is not limited, and the electrode unit 1001 may be manufactured in various repeated pattern units.
Furthermore, taking fig. 2 as an example, the different color tones of the electrode units 1001 are shown merely to better represent the positional relationship between the first fingerprint electrode 1021 and the second fingerprint electrode 1022, and between the first touch electrode 1011 and the second touch electrode 1012, and not to distinguish the pattern styles of the electrode units 1001.
Embodiments of the present application also provide a touch display screen that may include the touch panel 10 described above. The electrode units 1001 are uniformly distributed in the touch panel 10, so that the uniformity of light emission can not be reduced when light passes through the touch panel 10, the display effect of the touch display is improved, and the use experience of a user is improved.
In summary, in the touch panel and the touch display screen provided by the embodiments of the application, the touch panel includes electrode units uniformly distributed, the first fingerprint electrode and the second fingerprint electrode for realizing the fingerprint function are formed by connecting electrode units in different directions, and the first touch electrode and the second touch electrode for realizing the touch function are composed of touch electrode blocks formed by a plurality of electrode units connected with each other. Therefore, the fingerprint electrodes and the touch electrodes with different electrode density requirements are formed by adopting the uniformly distributed electrode units, and the electrode units are uniformly distributed in the touch panel, so that the uniformity of light emission can not be reduced to improve the display effect when light passes through the touch panel, and the use experience of a user is further improved.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (9)
1. The touch panel is characterized by comprising touch areas and fingerprint areas which are adjacently arranged, wherein the touch panel comprises electrode units which are uniformly distributed in an array arrangement mode, the interval between any two adjacent electrode units is the same, and the sizes of the electrode units are different;
the fingerprint area is provided with fingerprint electrodes, and the fingerprint electrodes comprise electrode units which are arranged along a straight line and are connected with each other;
the touch area is provided with touch electrodes, the touch electrodes comprise touch electrode blocks which are arranged along a straight line and are connected, and the touch electrode blocks comprise a plurality of electrode units which are arranged in an array and are connected with each other;
The fingerprint electrode comprises a first fingerprint electrode and a second fingerprint electrode, the first fingerprint electrode comprises a plurality of electrode units which are sequentially connected along a first direction, and the second fingerprint electrode comprises a plurality of electrode units which are sequentially connected along a second direction, wherein the first direction is intersected with the second direction;
the touch electrodes comprise a first touch electrode and a second touch electrode which are arranged in a crossing way, and the first touch electrode and the second touch electrode respectively comprise a plurality of touch electrode blocks;
The touch panel comprises a dielectric layer, the electrode units comprise a first electrode unit and a second electrode unit which are respectively arranged at two sides of the dielectric layer, the first electrode units and the second electrode units are arranged in a staggered mode, the first fingerprint electrode comprises a first electrode unit, and the second fingerprint electrode comprises a second electrode unit;
The touch electrode block comprises a plurality of first electrode units arranged in an array, a plurality of second electrode units arranged in an array and a connecting structure penetrating through the dielectric layer, wherein the connecting structure is used for connecting the first electrode units and the second electrode units in the same touch electrode block.
2. The touch panel according to claim 1, wherein the electrode units of the first fingerprint electrode and the electrode units of the second fingerprint electrode are arranged in the same layer, and the fingerprint area is further provided with a first bridging line for connecting adjacent electrode units in the first fingerprint electrode or adjacent electrode units in the second fingerprint electrode;
The touch area is provided with a second bridging line, and the second bridging line is used for connecting adjacent touch electrode blocks in the first touch electrode or adjacent touch electrode blocks in the second touch electrode.
3. The touch panel according to any one of claims 1-2, wherein the first touch electrode is disposed to extend in a third direction and the second touch electrode is disposed to extend in a fourth direction, wherein the third direction intersects the fourth direction; the third direction and the first direction form a preset included angle.
4. The touch panel according to claim 3, wherein,
The third direction is perpendicular to the fourth direction, the first direction is perpendicular to the second direction, and a preset included angle between the third direction and the first direction is 45 degrees.
5. The touch panel according to claim 3, wherein the touch area is surrounded on the periphery of the fingerprint area, and the fingerprint area is further provided with a first touch connection line and a second touch connection line;
In the third direction, touch electrode blocks positioned at two opposite ends of the fingerprint area are connected through the first touch connecting wire to form the first touch electrode;
in the fourth direction, the touch electrode blocks positioned at two opposite ends of the fingerprint area are connected through the second touch connecting wire to form the second touch electrode.
6. The touch panel of claim 1, further comprising a panel chip, wherein the first touch electrode, the second touch electrode, the first fingerprint electrode, and the second fingerprint electrode are connected to the same panel chip by respective leads;
The panel chip is configured to provide a touch drive signal for the first touch electrode, a touch sense signal for the second touch electrode, a fingerprint drive signal for the first fingerprint electrode, and a fingerprint sense signal for the second fingerprint electrode.
7. The touch panel of claim 6, wherein the first fingerprint electrode and the second fingerprint electrode are multiplexed as touch electrodes;
The panel chip is further configured to provide a touch driving signal for the first fingerprint electrode and a touch sensing signal for the second fingerprint electrode, wherein at the same time, the panel chip provides a fingerprint driving signal for only the first fingerprint electrode and a fingerprint sensing signal for the second fingerprint electrode, or provides a touch driving signal for only the first fingerprint electrode and a touch sensing signal for the second fingerprint electrode.
8. The touch panel according to claim 1, wherein the electrode unit has a shape of a circle, a semicircle, a triangle, a square, a rectangle, or an ellipse.
9. A touch display screen, characterized in that it comprises a touch panel according to any one of claims 1-8.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104898892A (en) * | 2015-07-09 | 2015-09-09 | 京东方科技集团股份有限公司 | Touch display panel, manufacturing method thereof and touch display device |
| CN105159506A (en) * | 2015-09-30 | 2015-12-16 | 信利光电股份有限公司 | Touch screen with fingerprint identification function, display panel and touch display apparatus |
| CN108021288A (en) * | 2017-12-29 | 2018-05-11 | 昆山国显光电有限公司 | A kind of contact panel and preparation method thereof, display device |
| CN111176487A (en) * | 2019-12-31 | 2020-05-19 | 厦门天马微电子有限公司 | Display panel, driving method thereof and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2019128288A1 (en) * | 2017-12-29 | 2019-07-04 | 昆山国显光电有限公司 | Touch-control panel and manufacturing method therefor, and display apparatus |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104898892A (en) * | 2015-07-09 | 2015-09-09 | 京东方科技集团股份有限公司 | Touch display panel, manufacturing method thereof and touch display device |
| CN105159506A (en) * | 2015-09-30 | 2015-12-16 | 信利光电股份有限公司 | Touch screen with fingerprint identification function, display panel and touch display apparatus |
| CN108021288A (en) * | 2017-12-29 | 2018-05-11 | 昆山国显光电有限公司 | A kind of contact panel and preparation method thereof, display device |
| CN111176487A (en) * | 2019-12-31 | 2020-05-19 | 厦门天马微电子有限公司 | Display panel, driving method thereof and display device |
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