CN107479763B - Touch display substrate and touch display device - Google Patents

Touch display substrate and touch display device Download PDF

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Publication number
CN107479763B
CN107479763B CN201710898635.1A CN201710898635A CN107479763B CN 107479763 B CN107479763 B CN 107479763B CN 201710898635 A CN201710898635 A CN 201710898635A CN 107479763 B CN107479763 B CN 107479763B
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China
Prior art keywords
electrically connected
electrode
transistor
line
touch display
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CN201710898635.1A
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CN107479763A (en
Inventor
郑超
陈仲怀
杨康鹏
许育民
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Wuhan Tianma Microelectronics Co Ltd
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Wuhan Tianma Microelectronics Co Ltd
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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
    • 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
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/13—Sensors therefor
    • G06V40/1306—Sensors therefor non-optical, e.g. ultrasonic or capacitive sensing
    • 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

Abstract

The invention provides a touch display substrate and a touch display device, which belong to the technical field of display and comprise: a plurality of pixels; a plurality of gate lines and a plurality of data lines; the plurality of gate lines comprise a plurality of gate line groups, and each gate line group comprises a first gate line and a second gate line which are adjacently arranged; the grid line group and the pixel rows are alternately arranged; the data line is arranged between two adjacent pixel columns; a plurality of first electrodes, a plurality of first electrode lines, and a plurality of first electrode switches; the first electrode is used for identifying fingerprint information; at most one of a data line and a first electrode line is arranged between any two adjacent pixel columns; the grid electrode of the first electrode switch is electrically connected with the grid line, the source electrode of the first electrode switch is electrically connected with the first electrode line, and the drain electrode of the first electrode switch is electrically connected with the first electrode. Compared with the prior art, the fingerprint identification module does not need to be additionally arranged, and the process is saved.

Description

Touch display substrate and touch display device
Technical Field
The invention relates to the technical field of display, in particular to a touch display substrate and a touch display device.
Background
In a display device provided in the prior art, a fingerprint recognition function is integrated. When the user uses the display device, the fingerprint recognition function may be used to cause the display device to perform a specific function. The fingerprint identification function is convenient, fast and high in safety, and is one of the research and development directions of the display device.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a display device provided in the prior art. The display device shown in fig. 1 includes a display panel 01 and a fingerprint recognition module 02. The display panel 01 is used for realizing a display function and includes a display area AA and a non-display area BB. The fingerprint identification module 02 is electrically connected with the display panel 01.
The fingerprint recognition module 02 includes a plurality of first electrodes 021 and a plurality of second electrodes 022. The first electrode 021 and the second electrode 022 are crossed and insulated, and mutual capacitance is formed between the first electrode 021 and the second electrode 022 and is used for detecting fingerprint information.
In the display device provided by the prior art, after the display panel 01 and the fingerprint identification module 02 are manufactured respectively, the display panel 01 and the fingerprint identification module need to be assembled to realize electrical connection, so that the process of the display device is increased.
In addition, in the fingerprint recognition module 02, the first electrode 021 and the second electrode 022 need to be electrically connected to signal lines (not shown), and the fingerprint recognition module 02 includes a plurality of signal lines. The display device further comprises a flexible circuit board 03, wherein the flexible circuit board 03 is electrically connected with the fingerprint identification module 02 and is used for transmitting electric signals for a plurality of signal lines in the fingerprint identification module 02. The flexible circuit board 03 has higher requirement on the alignment precision of the fingerprint identification module 02, and the process difficulty is higher.
Disclosure of Invention
In view of the foregoing, the invention provides a touch display substrate and a touch display device.
The invention provides a touch display substrate, comprising: a plurality of pixels; the plurality of pixels are arranged in an array along a first direction and a second direction; a plurality of pixels in the same row along the first direction are pixel rows; a plurality of pixels positioned in the same column along the second direction are pixel columns; a plurality of gate lines and a plurality of data lines; the gate lines extend along a first direction and are arranged along a second direction, and the data lines extend along the second direction and are arranged along the first direction; the first direction and the second direction intersect; the plurality of gate lines comprise a plurality of gate line groups, and each gate line group comprises a first gate line and a second gate line which are adjacently arranged; the grid line group and the pixel rows are alternately arranged; the data line is arranged between two adjacent pixel columns; a plurality of pixels electrically connected with the same gate line are respectively and electrically connected with different data lines, and a plurality of pixels electrically connected with the same data line are respectively and electrically connected with different gate lines; a plurality of first electrodes, a plurality of first electrode lines, and a plurality of first electrode switches; the first electrode is used for identifying fingerprint information; at most one of a data line and a first electrode line is arranged between any two adjacent pixel columns; the grid electrode of the first electrode switch is electrically connected with the grid line, the source electrode of the first electrode switch is electrically connected with the first electrode line, and the drain electrode of the first electrode switch is electrically connected with the first electrode.
The invention also provides a touch display device which comprises the touch display substrate provided by the invention.
Compared with the prior art, the touch display substrate and the touch display device provided by the invention at least realize the following beneficial effects:
in the touch display substrate and the touch display device provided by the invention, the first electrode is integrated in the touch display substrate and is used for identifying fingerprint information. Compared with the prior art, an additional fingerprint identification module is not required, so that the process is saved; simultaneously, need not to set up extra flexible line way board and for fingerprint identification module transmission signal of telecommunication, reduced the technology degree of difficulty. In addition, the touch display substrate adopts a dual-gate line structure, that is, the gate lines comprise a plurality of gate line groups, each gate line group comprises a first gate line and a second gate line which are arranged adjacently, so that the area between two adjacent pixel columns is not provided with a data line and is used for arranging the first electrode line, a routing area of the first electrode line is not required to be additionally arranged in the touch display substrate, and the touch display substrate is favorable for realizing higher aperture opening ratio.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural diagram of a display device provided in the prior art;
fig. 2 is a schematic structural diagram of a touch display substrate according to an embodiment of the present invention;
FIG. 3 is a partially enlarged view of the area A in FIG. 2;
fig. 4 is a schematic structural diagram of another touch display substrate according to an embodiment of the invention;
FIG. 5 is an enlarged partial view of the area B of FIG. 4;
fig. 6 is a schematic structural diagram of another touch display substrate according to an embodiment of the invention;
fig. 7 is a schematic structural diagram of another touch display substrate according to an embodiment of the invention;
FIG. 8 is a timing diagram of a multiplexing circuit in the touch display substrate shown in FIG. 7;
fig. 9 is a schematic structural diagram of another touch display substrate according to an embodiment of the invention;
FIG. 10 is a timing diagram of a multiplexing circuit in the touch display substrate shown in FIG. 9;
fig. 11 is a schematic view of a touch display device according to an embodiment of the invention.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Referring to fig. 2 and fig. 3, fig. 2 is a schematic structural diagram of a touch display substrate according to an embodiment of the invention, and fig. 3 is a schematic partial enlarged structural diagram of a region a in fig. 2. The embodiment provides a touch display substrate, including: a plurality of pixels 10; a plurality of pixels 10 are arranged in an array along a first direction and a second direction; a plurality of pixels 10 located in the same row along the first direction are pixel rows 101; a plurality of pixels 10 located in the same column along the second direction are pixel columns 102; a plurality of gate lines 20 and a plurality of data lines 30; the gate lines 20 extend in a first direction and are arranged in a second direction, and the data lines 30 extend in the second direction and are arranged in the first direction; the first direction and the second direction intersect; the plurality of gate lines 20 include a plurality of gate line groups 20A, and the gate line groups 20A include a first gate line 201 and a second gate line 202 which are adjacently disposed; the gate line group 20A and the pixel rows 101 are alternately arranged; the data line 30 is disposed between two adjacent pixel columns 102; the plurality of pixels 10 electrically connected to the same gate line 30 are electrically connected to different data lines 30, respectively, and the plurality of pixels 10 electrically connected to the same data line 30 are electrically connected to different gate lines 20, respectively.
A plurality of first electrodes 40, a plurality of first electrode lines 50, and a plurality of first electrode switches 60; wherein, the first electrode 40 is used for identifying fingerprint information; at most one of the data line 30 and the first electrode line 50 is disposed between any two adjacent pixel columns 102; the gate of the first electrode switch 60 is electrically connected to the gate line 20, the source of the first electrode switch 60 is electrically connected to the first electrode line 50, and the drain of the first electrode switch 60 is electrically connected to the first electrode 40. Note that, for the sake of clear distinction between the data lines 30 and the first electrode lines 50, the data lines 30 are indicated by solid lines, and the first electrode lines 50 are indicated by broken lines.
The touch display substrate provided by the embodiment has a touch function and a display function. Wherein a plurality of pixels 10 are used to implement the display function. For example, the pixels 10 may display different luminance, and the plurality of pixels 10 may have a plurality of colors. The pixels 10 are electrically connected to the corresponding gate lines 20 and data lines 30. Specifically, the pixel 10 includes a pixel electrode (not shown), and the pixel electrode is electrically connected to the corresponding gate line 20 and the data line 30 through the thin film transistor 11.
The plurality of first electrodes 40 are used to implement a touch function, and when a user performs a touch operation, fingerprint information of a finger may be identified, and a preset function may be performed according to the identified fingerprint information. Specifically, when a finger performs a touch operation on the touch display substrate, the concave-convex degree and the concave-convex shape of the fingerprint at different positions on the finger have different effects on the capacitance of the first electrode 40 after the finger approaches or contacts the touch display substrate. The fingerprint information can be obtained by analyzing the variation of the capacitances of the plurality of first electrodes 40. In the touch display substrate that this embodiment provided, will be used for discerning fingerprint information's first electrode 40 integration in touch display substrate, for prior art, need not additionally to make fingerprint identification module, reduced the technology degree of difficulty, improved production efficiency. The present embodiment does not specifically limit the shape or size of the first electrode 40. It can be understood that, since the first electrode 40 is used for identifying fingerprint information, the area of the first electrode 40 is not suitable to be large, and the larger the area of the first electrode 40, the lower the accuracy of fingerprint identification. Conversely, the smaller the area of the first electrode 40, the higher the accuracy of fingerprint recognition.
In this embodiment, the first electrode line 50 is used to transmit an electrical signal to the first electrode 40. Specifically, the touch display substrate further includes a first electrode switch 60, a gate of the first electrode switch 60 is electrically connected to the gate line 20, a source of the first electrode switch 60 is electrically connected to the first electrode line 50, and a drain of the first electrode switch 60 is electrically connected to the first electrode 40. The gate line 20 is used to control the first switch 60 to be turned on and off, and when the first switch 60 is turned on, the electric signal of the first electrode line 50 is transmitted from the source of the first electrode switch 60 to the drain of the first electrode switch 60 and then to the first electrode 40.
The touch display substrate provided by the embodiment is a dual gate line structure, and the first gate line 201 and the second gate line 202 are adjacently disposed. One specific arrangement of the dual gate line structure is illustrated in fig. 2. There are many specific arrangements of the dual gate line structure, and referring to fig. 4 and 5, fig. 4 is labeled with the reference numeral of fig. 2. Figure 4 illustrates another embodiment of a dual gate line structure. In the touch display substrate with the dual gate line structure shown in fig. 2 and 4, the pixels 10 electrically connected to the same gate line 30 are electrically connected to different data lines 30, respectively, and the pixels 10 electrically connected to the same data line 30 are electrically connected to different gate lines 20, respectively. There are various specific arrangements of the dual gate line structure, and the invention will not be described herein.
With reference to fig. 2 or fig. 4, since the touch display substrate provided in this embodiment is a dual gate line structure, the data line 30 is not disposed in the area between two adjacent pixel columns 102 in the touch display substrate, and the area between the two adjacent pixel columns 102 where the data line 30 is not disposed can be used for disposing the first electrode line 50. Therefore, an additional area for the first electrode lines 50 in the touch display substrate is not required, which is beneficial to achieving a higher aperture ratio of the touch display substrate.
In the touch display substrate provided by the embodiment of the invention, the first electrode is integrated in the touch display substrate and is used for identifying fingerprint information. Compared with the prior art, an additional fingerprint identification module is not required, so that the process is saved; simultaneously, need not to set up extra flexible line way board and for fingerprint identification module transmission signal of telecommunication, reduced the technology degree of difficulty. In addition, the touch display substrate adopts a dual-gate line structure, that is, the gate lines comprise a plurality of gate line groups, each gate line group comprises a first gate line and a second gate line which are arranged adjacently, so that the area between two adjacent pixel columns is not provided with a data line and is used for arranging the first electrode line, a routing area of the first electrode line is not required to be additionally arranged in the touch display substrate, and the touch display substrate is favorable for realizing higher aperture opening ratio.
In some alternative embodiments, with continued reference to fig. 2 and 4, the first electrode 40 is multiplexed as a common electrode; moreover, the plurality of first electrodes 40 are multiplexed as touch electrodes, and the touch electrodes are used for identifying position information of touch operation; the working stage of the touch display substrate comprises a display stage, a touch and fingerprint identification stage; in the display phase, the first electrode lines 50 transmit a common voltage signal to the first electrodes 40; in the touch and fingerprint identification stage, the first electrode line 50 transmits a first voltage signal to the first electrode 40; the first voltage signal is a pulse signal. In the touch display substrate provided in this embodiment, the first electrode 40 can be used to implement a fingerprint identification function, and can also be used to implement a touch function and a display function. Specifically, when a finger performs a touch operation on the touch display substrate, the capacitance of the first electrode 40 that the finger approaches or contacts changes, and specific touch information can be obtained by analyzing the capacitance change amount of the first electrode 40. The first electrode 40 may be used to implement a display function, and the touch display substrate further includes a pixel electrode, and after electrical signals are respectively applied to the pixel electrode and the common electrode, an electric field is formed therebetween, which may be used to implement the display function. In addition, in the touch display substrate provided in this embodiment, the display stage, the touch and fingerprint identification stage are performed separately, and in the display stage, the touch display substrate performs a display function without detecting touch and fingerprint information; in the touch and fingerprint identification stage, the touch display substrate performs both the touch function and the fingerprint identification function. It can be understood that, since both the touch information and the fingerprint information can be detected by analyzing the change of the capacitance of the first electrode 40, the touch function and the fingerprint recognition function of the touch display substrate can be simultaneously implemented. In the touch display substrate provided in this embodiment, the first electrode 40 integrates a fingerprint identification function, a touch function, and a display function, which is beneficial to thinning the touch display substrate.
In some optional embodiments, the display phase, the touch and the fingerprint identification phase alternate within the same frame. Within a frame time, the touch display substrate may perform a plurality of display stages, a plurality of touch stages, and a fingerprint recognition stage, and the two are performed alternately. Generally, since the time of one frame is short, for example, one frame can be 1/60 seconds, the display function of the touch display substrate is less affected when the touch and fingerprint recognition stages are performed. Moreover, because multiple touch and fingerprint identification stages are executed within one frame, the response speed of touch and fingerprint identification is higher, namely the report rate is higher.
In some optional embodiments, please refer to fig. 6, where fig. 6 is a schematic structural diagram of another touch display substrate provided in the embodiments of the present invention. Fig. 6 follows the reference numerals of fig. 2. The touch display substrate shown in fig. 6 includes a plurality of pixel units 100; the plurality of pixel units 100 are arranged in an array along a first direction and a second direction; the pixel unit 100 includes three pixels; the three pixels are different in color and arranged in the first direction. Specifically, the pixel unit 100 includes a pixel 10a, a pixel 10b, and a pixel 10 c. Optionally, the colors of the three pixels are red, green and blue, respectively. In a direction perpendicular to the touch display substrate, one first electrode 40 covers one pixel unit 100. Fig. 6 is a view of the touch display substrate viewed in a direction perpendicular to the touch display substrate. In the touch display substrate provided by the embodiment, the size of the first electrode 40 is approximately equal to that of one pixel unit 100, and the fingerprint identification precision is high. Meanwhile, in the dual gate line structure, there may be a sufficient number of regions where the first electrode lines 50 are disposed to transmit electrical signals to the first electrodes 40.
In some alternative embodiments, please continue to refer to fig. 6. The touch display substrate includes M pixel rows, which are the first pixel row 1011 to the mth pixel row 101M, respectively.
The plurality of first electrodes 40 located in the same row in the first direction are electrode rows 401; the touch display substrate includes M electrode rows, which are the first electrode row 4011 to the mth electrode row 401M, respectively.
The X pixel rows and the X electrode rows are arranged in a one-to-one correspondence manner; the X-th pixel row and the X-th electrode row are an X-th scanning unit SX; wherein X is more than or equal to 1 and less than or equal to M; specifically, for example, the first pixel row 1011 and the first electrode row 4011 are provided correspondingly, and the mth pixel row 101M and the mth electrode row 401M are provided correspondingly. The first pixel row 1011 and the first electrode row 4011 are the first scan cell S1, and the mth pixel row 101M and the mth electrode row 401M are the mth scan cell SM.
Sequentially transmitting the electrical signals to the first scanning unit S1 to the mth scanning unit SM, wherein the process of transmitting the electrical signals to the xth scanning unit SX includes: transmitting an electric signal to the pixels 10 in the X-th pixel row 101X, and transmitting a common voltage signal to the first electrodes 40 in the X-th electrode row 401X; then, the first voltage signal is transmitted to the first electrode 40 in the X-th electrode row 401X.
Specifically, for example, the process of transmitting the electrical signal to the first scanning unit S1 includes: the gate lines 20 corresponding to the pixels 10 in the first pixel row 1011 sequentially receive the electrical signals, control the corresponding thin film transistors 11 to be turned on, transmit the electrical signals to the pixels 10 in the first pixel row 1011 through the data lines 30, and simultaneously transmit the common voltage signal to the first electrodes 40 in the first electrode row 4011, so that the pixels 10 in the first pixel row 1011 perform the display function. After the pixels 10 in the first pixel row 1011 receive the electrical signals, the touch display substrate performs touch and fingerprint recognition functions. Specifically, the gate line 20 corresponding to the first electrode 40 in the first electrode row 4011 receives an electrical signal, controls the corresponding first electrode switch 60 to be turned on, and transmits a first voltage signal to the first electrode 40 in the first electrode row 4011. In the touch display substrate provided by this embodiment, in one frame, the display stage is executed M times, and the touch and fingerprint identification stages are executed M times, and the display stage, the touch and fingerprint identification stages are performed alternately, so that the response speed of the touch and fingerprint identification is high, and the influence on the display function of the touch display substrate is small.
Referring to fig. 7, fig. 7 is a schematic structural diagram of another touch display substrate according to an embodiment of the invention. In some optional embodiments, the touch display substrate includes a plurality of first repeating units D1 arranged along a first direction; the first repeating unit D1 includes three pixel columns, two data lines, and one first electrode line; the three pixel columns include a first pixel column 1021, a second pixel column 1022, and a third pixel column 1023; the two data lines include a first data line 301 and a second data line 302.
In the first repeating unit D1, the first pixel column 1021, the first data line 301, the second pixel column 1022, the second data line 302, the third pixel column 1023, and the first electrode line 50 are sequentially arranged along the first direction.
In order to sequentially transmit the electrical signals to the first scanning unit S1 to the mth scanning unit SM, optionally, a circuit structure may be disposed in the touch display substrate to transmit the electrical signals. The present invention is described herein below with reference to a circuit structure in a touch display substrate.
In some alternative embodiments, please continue to refer to fig. 7. The touch display substrate comprises a plurality of first repeating unit groups DD1 arranged along a first direction, wherein each first repeating unit group comprises two adjacent first repeating units, and the two adjacent first repeating units are a first repeating unit A D1A and a first repeating unit B D1B respectively.
The touch display substrate further includes a multiplexing circuit 70; the multiplexing circuit 70 is electrically connected to the plurality of data lines 30 and the plurality of first electrode lines 50.
The multiplexing circuit 70 includes a plurality of first multiplexing units 71; the first multiplexing unit 71 is electrically connected to the first repeating unit group DD 1. The first multiplexing unit 71 is used to transmit electrical signals to the first repeating unit group DD 1.
The first multiplexing unit 71 includes a first input terminal R1, a second input terminal R2, a first output terminal C1, a second output terminal C2, a third output terminal C3, a fourth output terminal C4, a fifth output terminal C5, and a sixth output terminal C6; the first output terminal C1 is electrically connected to the first data line 301 of the first repeating unit a D1A, the second output terminal C2 is electrically connected to the second data line 302 of the first repeating unit a D1A, the third output terminal C3 is electrically connected to the first electrode line 50 of the first repeating unit a D1A, the fourth output terminal C4 is electrically connected to the first data line 301 of the first repeating unit b 1B, the fifth output terminal C5 is electrically connected to the second data line 302 of the first repeating unit b 1B, and the sixth output terminal C6 is electrically connected to the first electrode line 50 of the first repeating unit b 1D 1B; the first output end C1, the third output end C3 and the fifth output end C5 output electric signals of the first input end R1 in a time-sharing mode; the second output end C2, the fourth output end C4 and the sixth output end C6 output the electrical signal of the second input end R2 in a time-sharing manner. In the touch display substrate provided by this embodiment, the multiplexing circuit 70 is used to transmit the electrical signals to the first scanning unit S1 to the mth scanning unit SM, so that the number of electrical signal input terminals can be reduced, and the wiring of the touch display substrate can be simplified.
In some alternative embodiments, please continue to refer to fig. 7. The touch display substrate further includes a common voltage transmission circuit 80, and the common voltage transmission circuit 80 is electrically connected to the plurality of first electrode lines 50. The common voltage transmission circuit 80 serves to transmit an electrical signal to the plurality of first electrode lines 50.
The common voltage transmitting circuit 80 includes a plurality of first common voltage transmitting circuits 81, and the first common voltage transmitting circuits 81 include a first common voltage input terminal E1, a second common voltage input terminal E2, a first common voltage output terminal Z1, and a second common voltage output terminal Z2; the first common voltage output terminal Z1 is electrically connected to the third output terminal C3, and the second common voltage output terminal Z2 is electrically connected to the sixth output terminal C6.
The working stage of the touch display substrate comprises a display stage and a fingerprint identification stage; during the display phase, the first common voltage input terminal Z1 transmits a common voltage signal to the first electrode lines 50 of the first repeating unit a D1A, and the second common voltage input terminal Z2 transmits a common voltage signal to the first electrode lines 50 of the first repeating unit b D1B; during the fingerprint recognition phase, the first input terminal R1 transmits a fingerprint recognition signal to the first electrode lines 50 of the first repeating unit a D1A, and the second input terminal R2 transmits a fingerprint recognition signal to the first electrode lines 50 of the first repeating unit b D1B. In the touch display substrate provided in this embodiment, the common voltage transmission circuit 80 is disposed, and in the display stage, the common voltage transmission circuit 80 transmits an electrical signal to the first electrode 40.
In some alternative embodiments, please continue to refer to fig. 7. The first multiplexing unit 71 includes a first control line K1, a second control line K2, a third control line K3, a first transistor T1, a second transistor T2, a third transistor T3, a fourth transistor T4, a fifth transistor T5, and a sixth transistor T6.
A gate of the first transistor T1 is electrically connected to the first control line K1, a first pole of the first transistor T1 is electrically connected to the first input terminal R1, and a second pole of the first transistor T1 is electrically connected to the first output terminal C1.
The gate of the second transistor T2 is electrically connected to the second control line K2, the first pole of the second transistor T2 is electrically connected to the second input terminal R2, and the second pole of the second transistor T2 is electrically connected to the second output terminal C2.
A gate of the third transistor T3 is electrically connected to the third control line K3, a first pole of the third transistor T3 is electrically connected to the first input terminal R1, and a second pole of the third transistor T3 is electrically connected to the third output terminal C3.
A gate of the fourth transistor T4 is electrically connected to the first control line K1, a first pole of the fourth transistor T4 is electrically connected to the second input terminal R2, and a second pole of the fourth transistor T4 is electrically connected to the fourth output terminal C4.
A gate of the fifth transistor T5 is electrically connected to the second control line K2, a first pole of the fifth transistor T5 is electrically connected to the first input terminal R1, and a second pole of the fifth transistor T5 is electrically connected to the fifth output terminal C5.
A gate of the sixth transistor T6 is electrically connected to the third control line K3, a first pole of the sixth transistor T6 is electrically connected to the second input terminal R2, and a second pole of the sixth transistor T6 is electrically connected to the sixth output terminal C6.
The first common voltage transmission circuit 81 includes a common voltage control line K4, a seventh transistor T7, and an eighth transistor T8.
A gate of the seventh transistor T7 is electrically connected to the common voltage control line K4, a first pole of the seventh transistor T7 is electrically connected to the first common voltage input terminal Z1, and a second pole of the seventh transistor T7 is electrically connected to the third output terminal C3.
A gate of the eighth transistor T8 is electrically connected to the common voltage control line K4, a first pole of the eighth transistor T8 is electrically connected to the second common voltage input terminal Z2, and a second pole of the eighth transistor T8 is electrically connected to the sixth output terminal C6.
In the touch display substrate provided in this embodiment, specific circuit elements and connection modes of the first multiplexing unit 71 and the first common voltage transmission circuit 81 are disclosed.
Referring to fig. 8, fig. 8 is a timing diagram of a multiplexing circuit in the touch display substrate shown in fig. 7. In fig. 7, the gate lines 20 are numbered 21, 21 ', 22 ', … …, 2M, and 2M ' in this order along the arrangement direction of the first pixel row 1011 to the mth pixel row 101M. The gate lines corresponding to the first pixel row 1011 are numbered 21 and 21 ', and the gate lines corresponding to the mth pixel row 101M are numbered 2M and 2M'. The gate lines 21, 21 ', 22 ', … …, 2M ' sequentially receive electrical signals, and turn on the thin film transistor 11 and the first electrode switch 60 electrically connected thereto. Specifically, for example, when the gate line 21 receives an electrical signal, the first control line K1 receives the electrical signal, the first input terminal R1 transmits the electrical signal to the corresponding pixel 10a in the first pixel row 1011, and the second input terminal R2 transmits the electrical signal to the corresponding pixel 10a in the first pixel row 1011; then, the second control line K2 receives the electrical signal, the first input terminal R1 transmits the electrical signal to the corresponding pixel 10b in the first pixel row 1011, and the second input terminal R2 transmits the electrical signal to the corresponding pixel 10b in the first pixel row 1011. After the gate line 21 is turned off, the gate line 21' receives the electrical signal, the second control line K2 receives the electrical signal again, the first input terminal R1 transmits the electrical signal to the corresponding pixel 10c in the first pixel row 1011, and the second input terminal R2 transmits the electrical signal to the corresponding pixel 10c in the first pixel row 1011. During the time when the gate line 21' receives the electrical signal, the third control line K3 receives the electrical signal, and the first input terminal R1 transmits a first voltage signal V1 to the corresponding first electrode line 50, so that the corresponding first electrode in the first electrode row 4011 performs the fingerprint identification function; the second input terminal R2 transmits a first voltage signal V1 to the corresponding first electrode line 50, so that the corresponding first electrode in the first electrode row 4011 performs a fingerprint recognition function. In the touch display substrate provided by this embodiment, taking the refresh frequency of the touch display substrate as 60HZ as an example, the time for each gate line to receive the electrical signal is about 7.5us, and finally the time for the third control line K3 to receive the electrical signal to turn on the corresponding third transistor T3 and sixth transistor T6 is 3.5us, which can completely meet the requirement of fingerprint identification.
In some optional embodiments, please refer to fig. 9, and fig. 9 is a schematic structural diagram of another touch display substrate according to an embodiment of the present invention. Fig. 9 follows the reference numerals of fig. 4. The touch display substrate provided by the embodiment includes a plurality of second repeating units D2 arranged along a first direction; the second repeating unit D2 includes six pixel columns, three data lines, and two first electrode lines; the six pixel columns include a first sub-pixel column 1021, a second sub-pixel column 1022, a third sub-pixel column 1023, a fourth sub-pixel column 1024, a fifth sub-pixel column 1025, and a sixth sub-pixel column 1026; the three data lines comprise a first sub data line 301, a second sub data line 302 and a third sub data line 303; the two first electrode lines comprise a first sub first electrode line 501 and a second sub first electrode line 502;
in the second repeating unit D2, the first sub-pixel column 1021, the first sub-data line 301, the second sub-pixel column 1022, the first sub-first electrode line 501, the third sub-pixel column 1023, the second sub-data line 302, the fourth sub-pixel column 1024, the second sub-first electrode line 502, the fifth sub-pixel column 1025, the third sub-data line 303, and the sixth sub-pixel column 1026 are sequentially arranged along the first direction. Fig. 7 illustrates a touch display substrate of a dual gate line structure, and the present embodiment illustrates another touch display substrate of a dual gate line structure.
In some alternative embodiments, please continue to refer to fig. 9. The touch display substrate further includes a multiplexing circuit 70; the multiplexing circuit 70 is electrically connected to the plurality of data lines 30 and the plurality of first electrode lines 50; the multiplexing circuit 70 includes a plurality of second multiplexing units 72.
The second multiplexing unit 72 includes a first input terminal R1, a second input terminal R2, a first output terminal C1, a second output terminal C2, a third output terminal C3, a fourth output terminal C4, and a fifth output terminal C5;
the first output terminal C1 is electrically connected to the first sub-data line 301, the second output terminal C2 is electrically connected to the first sub-first electrode line 501, the third output terminal C3 is electrically connected to the second sub-data line 302, the fourth output terminal C4 is electrically connected to the second sub-first electrode line 502, and the fifth output terminal C5 is electrically connected to the third sub-data line 303.
The first output end C1, the second output end C2 and the third output end C3 output electric signals of the first input end R1 in a time-sharing mode; the fourth output end C4 and the fifth output end C5 output the electric signal of the second input end R2 in a time sharing manner. In the touch display substrate provided by this embodiment, the multiplexing circuit 70 is used to transmit the electrical signals to the first scanning unit S1 to the mth scanning unit SM, so that the number of electrical signal input terminals can be reduced, and the wiring of the touch display substrate can be simplified.
In some alternative embodiments, please continue to refer to fig. 9. The touch display substrate further includes a common voltage transmission circuit 80, and the common voltage transmission circuit 80 is electrically connected to the plurality of first electrode lines 50. The common voltage transmission circuit 80 transmits electrical signals for the plurality of first electrode lines 50.
The common voltage transmitting circuit 80 includes a plurality of second common voltage transmitting circuits 82, and the second common voltage transmitting circuits 82 include a first common voltage input terminal E1, a second common voltage input terminal E2, a first common voltage output terminal Z1, and a second common voltage output terminal Z2; the first common voltage output terminal Z1 is electrically connected to the second output terminal C2, and the second common voltage output terminal Z2 is electrically connected to the fourth output terminal C4.
The working stage of the touch display substrate comprises a display stage and a fingerprint identification stage; in the display phase, the first common voltage input terminal E1 transmits a common voltage signal to the first sub first electrode lines 501, and the second common voltage input terminal E2 transmits a common voltage signal to the second sub first electrode lines 502.
During the fingerprint identification phase, the first input terminal R1 transmits a fingerprint identification signal to the first sub-first electrode line 501, and the second input terminal R2 transmits a fingerprint identification signal to the second sub-first electrode line 502.
In some alternative embodiments, please continue to refer to fig. 9. The second multiplexing unit 72 includes a first control line K1, a second control line K2, a third control line K3, a first transistor T1, a second transistor T2, a third transistor T3, a fourth transistor T4, and a fifth transistor T5.
A gate of the first transistor T1 is electrically connected to the first control line K1, a first pole of the first transistor T1 is electrically connected to the first input terminal R1, and a second pole of the first transistor T1 is electrically connected to the first output terminal C1.
A gate of the second transistor T2 is electrically connected to the third control line K3, a first pole of the second transistor T2 is electrically connected to the first input terminal R1, and a second pole of the second transistor T2 is electrically connected to the second output terminal C2.
A gate of the third transistor T3 is electrically connected to the second control line K2, a first pole of the third transistor T3 is electrically connected to the first input terminal R1, and a second pole of the third transistor T3 is electrically connected to the third output terminal C3.
A gate of the fourth transistor T4 is electrically connected to the third control line K3, a first pole of the fourth transistor T4 is electrically connected to the second input terminal R2, and a second pole of the fourth transistor T4 is electrically connected to the fourth output terminal C4.
A gate of the fifth transistor T5 is electrically connected to the first control line K1, a first pole of the fifth transistor T5 is electrically connected to the second input terminal R2, and a second pole of the fifth transistor T5 is electrically connected to the fifth output terminal C5.
The second common voltage transmission circuit 82 includes a common voltage control line K4, a sixth transistor T6, and a seventh transistor T7.
A gate of the sixth transistor T6 is electrically connected to the common voltage control line K4, a first pole of the sixth transistor T6 is electrically connected to the first common voltage input terminal E1, and a second pole of the sixth transistor T6 is electrically connected to the second output terminal C2.
A gate of the seventh transistor T7 is electrically connected to the common voltage control line K4, a first pole of the seventh transistor T7 is electrically connected to the second common voltage input terminal E2, and a second pole of the seventh transistor T7 is electrically connected to the fourth output terminal C4.
In the touch display substrate provided in this embodiment, specific circuit elements and connection modes of the second multiplexing unit 72 and the second common voltage transmission circuit 82 are disclosed.
Referring to fig. 10, fig. 10 is a timing diagram of a multiplexing circuit in the touch display substrate shown in fig. 9. In fig. 10, the gate lines 20 are numbered 21, 21 ', 22 ', … …, 2M, and 2M ' in this order along the arrangement direction of the first pixel row 1011 to the mth pixel row 101M. The gate lines corresponding to the first pixel row 1011 are numbered 21 and 21 ', and the gate lines corresponding to the mth pixel row 101M are numbered 2M and 2M'. The gate lines 21, 21 ', 22 ', … …, 2M ' sequentially receive electrical signals, and the thin film transistor 11 and the first electrode switch 60 electrically connected thereto receive electrical signals. Specifically, for example, when the gate line 21 receives an electrical signal, the first control line K1 receives the electrical signal, the first input terminal R1 transmits the electrical signal to the corresponding pixel 10a in the first pixel row 1011, and the second input terminal R2 transmits the electrical signal to the corresponding pixel 10b in the first pixel row 1011. Then, the second control line K2 receives an electric signal, and the first input terminal R1 transmits the electric signal to the corresponding pixel 10c in the first pixel row 1011. After the gate line 21 is turned off, the gate line 21' receives an electrical signal, the first control line K1 receives an electrical signal, the first input terminal R1 transmits an electrical signal to the corresponding pixel 10b in the first pixel row 1011, and the second input terminal R2 transmits an electrical signal to the corresponding pixel 10c in the first pixel row 1011; the second control line K2 receives the electric signal again, and the first input terminal R1 transmits the electric signal to the corresponding pixel 10a in the first pixel row 1011. During the time when the gate line 21' receives the electrical signal, the third control line K3 receives the electrical signal, and the first input terminal R1 transmits the first voltage signal V1 to the corresponding first sub-first electrode line 501, so that the corresponding first electrode in the first electrode row 4011 performs the fingerprint identification function; the second input terminal R2 transmits the first voltage signal V1 to the corresponding second sub-first electrode line 502, so that the corresponding first electrode in the first electrode row 4011 performs the fingerprint identification function.
The invention also provides a touch display device which comprises the touch display substrate provided by the invention.
Referring to fig. 11, fig. 11 is a schematic view of a touch display device according to an embodiment of the invention. The touch display device 1000 provided in fig. 11 includes the touch display substrate 1000A provided in any of the above embodiments of the present invention. The embodiment of fig. 11 is only an example of a mobile phone, and the touch display device 1000 is described, it is understood that the touch display device provided in the embodiment of the present invention may be other touch display devices with a display function, such as a computer, a television, a vehicle-mounted display device, and the present invention is not limited thereto. The touch display device provided in the embodiment of the present invention has the beneficial effects of the touch display substrate provided in the embodiment of the present invention, and specific descriptions on the touch display substrate in the above embodiments can be specifically referred to, and the detailed descriptions in this embodiment are not repeated herein.
According to the embodiments, at least the following beneficial effects are realized:
in the touch display substrate and the touch display device provided by the embodiments of the present invention, the first electrode is integrated in the touch display substrate for identifying fingerprint information. Compared with the prior art, an additional fingerprint identification module is not required, so that the process is saved; simultaneously, need not to set up extra flexible line way board and for fingerprint identification module transmission signal of telecommunication, reduced the technology degree of difficulty. In addition, the touch display substrate adopts a dual-gate line structure, that is, the gate lines comprise a plurality of gate line groups, each gate line group comprises a first gate line and a second gate line which are arranged adjacently, so that the area between two adjacent pixel columns is not provided with a data line and is used for arranging the first electrode line, a routing area of the first electrode line is not required to be additionally arranged in the touch display substrate, and the touch display substrate is favorable for realizing higher aperture opening ratio.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims (14)

1. A touch display substrate, comprising:
a plurality of pixels; the plurality of pixels are arranged in an array along a first direction and a second direction; a plurality of the pixels located in the same row along the first direction are pixel rows; a plurality of pixels in the same column along the second direction are pixel columns;
a plurality of gate lines and a plurality of data lines; the gate lines extend along the first direction and are arranged along the second direction, and the data lines extend along the second direction and are arranged along the first direction; the first direction and the second direction intersect;
the plurality of gate lines comprise a plurality of gate line groups, and the gate line groups comprise a first gate line and a second gate line which are adjacently arranged; the grid line group and the pixel rows are alternately arranged; the data line is arranged between two adjacent pixel columns; a plurality of pixels electrically connected to the same gate line are electrically connected to different data lines, respectively, and a plurality of pixels electrically connected to the same data line are electrically connected to different gate lines, respectively;
a plurality of first electrodes, a plurality of first electrode lines, and a plurality of first electrode switches; wherein the content of the first and second substances,
the first electrode is used for identifying fingerprint information;
at most one of the data line and the first electrode line is arranged between any two adjacent pixel columns;
the grid electrode of the first electrode switch is electrically connected with the grid line, the source electrode of the first electrode switch is electrically connected with the first electrode line, and the drain electrode of the first electrode switch is electrically connected with the first electrode.
2. The touch display substrate of claim 1,
the first electrode is multiplexed as a common electrode; the plurality of first electrodes are multiplexed to be touch electrodes, and the touch electrodes are used for identifying position information of touch operation;
the working stage of the touch display substrate comprises a display stage, a touch and fingerprint identification stage;
in the display stage, the first electrode line transmits a common voltage signal to the first electrode;
in the touch control and fingerprint identification stage, the first electrode wire transmits a first voltage signal to the first electrode; the first voltage signal is a pulse signal.
3. The touch display substrate of claim 2,
and in the same frame, the display stage and the touch and fingerprint identification stage are alternately carried out.
4. The touch display substrate of claim 3,
the touch display substrate comprises a plurality of pixel units; the plurality of pixel units are arranged in an array along the first direction and the second direction; the pixel unit includes three of the pixels; the three pixels are different in color and are arranged along the first direction;
in the direction perpendicular to the touch display substrate, one first electrode covers one pixel unit.
5. The touch display substrate of claim 4,
the touch display substrate comprises M pixel rows from a first pixel row to an Mth pixel row;
a plurality of first electrodes located in the same row along the first direction are electrode rows; the touch display substrate comprises M electrode rows from a first electrode row to an Mth electrode row;
the X pixel rows and the X electrode rows are arranged in a one-to-one correspondence manner; the X pixel row and the X electrode row are X scanning units; wherein X is more than or equal to 1 and less than or equal to M;
sequentially transmitting electric signals to a first scanning unit to an Mth scanning unit, wherein the process of transmitting the electric signals to the Xth scanning unit comprises the following steps:
transmitting an electrical signal to the pixels in the X-th pixel row and transmitting the common voltage signal to the first electrodes in the X-th electrode row;
then, the first voltage signal is transmitted to the first electrode in the X-th electrode row.
6. The touch display substrate of claim 5,
the touch display substrate comprises a plurality of first repeating units arranged along the first direction; the first repeating unit includes three pixel columns, two data lines, and one first electrode line; the three pixel columns comprise a first pixel column, a second pixel column and a third pixel column; the two data lines comprise a first data line and a second data line;
in the first repeating unit, the first pixel column, the first data line, the second pixel column, the second data line, the third pixel column, and the first electrode line are sequentially arranged along the first direction.
7. The touch display substrate of claim 6,
the touch display substrate comprises a plurality of first repeating unit groups arranged along the first direction, each first repeating unit group comprises two adjacent first repeating units, and the two adjacent first repeating units are a first repeating unit A and a first repeating unit B respectively;
the touch display substrate further comprises a multiplex transmission circuit; the multiplex transmission circuit is electrically connected with the plurality of data lines and the plurality of first electrode lines; the multiplexing circuit includes a plurality of first multiplexing units; the first multiplexing unit is electrically connected with the first repeating unit group;
the first multipath transmission unit comprises a first input end, a second input end, a first output end, a second output end, a third output end, a fourth output end, a fifth output end and a sixth output end;
the first output terminal is electrically connected to the first data line of the first repeating unit a, the second output terminal is electrically connected to the second data line of the first repeating unit a, the third output terminal is electrically connected to the first electrode line of the first repeating unit a, the fourth output terminal is electrically connected to the first data line of the first repeating unit b, the fifth output terminal is electrically connected to the second data line of the first repeating unit b, and the sixth output terminal is electrically connected to the first electrode line of the first repeating unit b;
the first output end, the third output end and the fifth output end output the electric signals of the first input end in a time-sharing manner; the second output end, the fourth output end and the sixth output end output the electric signal of the second input end in a time-sharing manner.
8. The touch display substrate of claim 7,
the touch display substrate further comprises a common voltage transmission circuit, and the common voltage transmission circuit is electrically connected with the plurality of first electrode wires;
the public voltage transmission circuit comprises a plurality of first public voltage transmission circuits, and each first public voltage transmission circuit comprises a first public voltage input end, a second public voltage input end, a first public voltage output end and a second public voltage output end; the first common voltage output end is electrically connected with the third output end, and the second common voltage output end is electrically connected with the sixth output end;
the working stage of the touch display substrate comprises a display stage and a fingerprint identification stage;
in the display stage, the first common voltage input terminal transmits a common voltage signal to the first electrode wires of the first repeating unit A, and the second common voltage input terminal transmits a common voltage signal to the first electrode wires of the first repeating unit B;
in the fingerprint identification stage, the first input end transmits a fingerprint identification signal to the first electrode wire of the first repeating unit A, and the second input end transmits a fingerprint identification signal to the first electrode wire of the first repeating unit B.
9. The touch display substrate of claim 8,
the first multiplexing unit comprises a first control line, a second control line, a third control line, a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor and a sixth transistor;
a gate of the first transistor is electrically connected to the first control line, a first pole of the first transistor is electrically connected to the first input terminal, and a second pole of the first transistor is electrically connected to the first output terminal;
a gate of the second transistor is electrically connected to the second control line, a first pole of the second transistor is electrically connected to the second input terminal, and a second pole of the second transistor is electrically connected to the second output terminal;
a gate of the third transistor is electrically connected to the third control line, a first pole of the third transistor is electrically connected to the first input terminal, and a second pole of the third transistor is electrically connected to the third output terminal;
a gate of the fourth transistor is electrically connected to the first control line, a first pole of the fourth transistor is electrically connected to the second input terminal, and a second pole of the fourth transistor is electrically connected to the fourth output terminal;
a gate of the fifth transistor is electrically connected to the second control line, a first pole of the fifth transistor is electrically connected to the first input terminal, and a second pole of the fifth transistor is electrically connected to the fifth output terminal;
a gate of the sixth transistor is electrically connected to the third control line, a first pole of the sixth transistor is electrically connected to the second input terminal, and a second pole of the sixth transistor is electrically connected to the sixth output terminal;
the first common voltage transmission circuit comprises a common voltage control line, a seventh transistor and an eighth transistor;
a gate of the seventh transistor is electrically connected to the common voltage control line, a first pole of the seventh transistor is electrically connected to the first common voltage input terminal, and a second pole of the seventh transistor is electrically connected to the third output terminal;
a gate of the eighth transistor is electrically connected to the common voltage control line, a first pole of the eighth transistor is electrically connected to the second common voltage input terminal, and a second pole of the eighth transistor is electrically connected to the sixth output terminal.
10. The touch display substrate of claim 5,
the touch display substrate comprises a plurality of second repeating units arranged along the first direction; the second repeating unit includes six pixel columns, three data lines, and two first electrode lines; the six pixel columns comprise a first sub-pixel column, a second sub-pixel column, a third sub-pixel column, a fourth sub-pixel column, a fifth sub-pixel column and a sixth sub-pixel column; the three data lines comprise a first sub data line, a second sub data line and a third sub data line; the two first electrode lines comprise a first sub first electrode line and a second sub first electrode line;
in the second repeating unit, the first sub-pixel column, the first sub-data line, the second sub-pixel column, the first sub-first electrode line, the third sub-pixel column, the second sub-data line, the fourth sub-pixel column, the second sub-first electrode line, the fifth sub-pixel column, the third sub-data line, and the sixth sub-pixel column are sequentially arranged along the first direction.
11. The touch display substrate of claim 10,
the touch display substrate further comprises a multiplex transmission circuit; the multiplex transmission circuit is electrically connected with the plurality of data lines and the plurality of first electrode lines; the multiplexing circuit includes a plurality of second multiplexing units;
the second multipath transmission unit comprises a first input end, a second input end, a first output end, a second output end, a third output end, a fourth output end and a fifth output end;
the first output end is electrically connected with the first sub data line, the second output end is electrically connected with the first sub first electrode line, the third output end is electrically connected with the second sub data line, the fourth output end is electrically connected with the second sub first electrode line, and the fifth output end is electrically connected with the third sub data line;
the first output end, the third output end and the fifth output end output the electric signals of the first input end in a time-sharing manner; the second output end and the fourth output end output the electric signal of the second input end in a time-sharing manner.
12. The touch display substrate of claim 11,
the touch display substrate further comprises a common voltage transmission circuit, and the common voltage transmission circuit is electrically connected with the plurality of first electrode wires;
the public voltage transmission circuit comprises a plurality of second public voltage transmission circuits, and each second public voltage transmission circuit comprises a first public voltage input end, a second public voltage input end, a first public voltage output end and a second public voltage output end; the first common voltage output end is electrically connected with the second output end, and the second common voltage output end is electrically connected with the fourth output end;
the working stage of the touch display substrate comprises a display stage and a fingerprint identification stage;
in the display stage, the first common voltage input end transmits a common voltage signal to the first sub first electrode lines, and the second common voltage input end transmits a common voltage signal to the second sub first electrode lines;
in the fingerprint identification stage, the first input end transmits a fingerprint identification signal to the first sub first electrode lines, and the second input end transmits a fingerprint identification signal to the second sub first electrode lines.
13. The touch display substrate of claim 12,
the second multiplexing unit comprises a first control line, a second control line, a third control line, a first transistor, a second transistor, a third transistor, a fourth transistor and a fifth transistor;
a gate of the first transistor is electrically connected to the first control line, a first pole of the first transistor is electrically connected to the first input terminal, and a second pole of the first transistor is electrically connected to the first output terminal;
a gate of the second transistor is electrically connected to the third control line, a first pole of the second transistor is electrically connected to the first input terminal, and a second pole of the second transistor is electrically connected to the second output terminal;
a gate of the third transistor is electrically connected to the second control line, a first pole of the third transistor is electrically connected to the first input terminal, and a second pole of the third transistor is electrically connected to the third output terminal;
a gate of the fourth transistor is electrically connected to the third control line, a first pole of the fourth transistor is electrically connected to the second input terminal, and a second pole of the fourth transistor is electrically connected to the fourth output terminal;
a gate of the fifth transistor is electrically connected to the first control line, a first pole of the fifth transistor is electrically connected to the second input terminal, and a second pole of the fifth transistor is electrically connected to the fifth output terminal;
the second common voltage transmission circuit comprises a common voltage control line, a sixth transistor and a seventh transistor;
a gate of the sixth transistor is electrically connected to the common voltage control line, a first pole of the sixth transistor is electrically connected to the first common voltage input terminal, and a second pole of the sixth transistor is electrically connected to the second output terminal;
a gate of the seventh transistor is electrically connected to the common voltage control line, a first pole of the seventh transistor is electrically connected to the second common voltage input terminal, and a second pole of the seventh transistor is electrically connected to the fourth output terminal.
14. A touch display device comprising the touch display substrate according to any one of claims 1 to 13.
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