CN217562015U - Touch screen panel and display device - Google Patents

Abstract

The utility model discloses a touch screen panel, touch screen panel definition have display area and peripheral district, and touch screen panel includes: a glass cover plate; the polaroid is arranged below the glass cover plate; the touch control module is arranged below the polaroid, a plurality of touch control units and a plurality of first touch control overlapping terminals are arranged on the touch control module, the touch control units are arranged in the display area, the first touch control overlapping terminals are arranged in the peripheral area and positioned on the bottom end face of the touch control module, and the touch control units are connected to the first touch control overlapping terminals through touch control signal lead wires; the display module is arranged below the touch module, a second touch overlapping terminal is arranged on the top end face of the display module in the peripheral area, a selection switch and a touch binding terminal are further arranged on the display module in the peripheral area, the touch signal lead is connected to the touch binding terminal sequentially through the first touch overlapping terminal, the second touch overlapping terminal and the selection switch, and the number of the touch binding terminals is less than that of the touch units.

Description

Touch screen panel and display device

Technical Field

The utility model relates to a show technical field, especially relate to a touch screen panel and display device.

Background

In a display screen terminal, a display screen needs to be changed into a touch pad, and touch and display functions need to be seamlessly integrated. Display screens with touch control functions are the mainstream of development, and common display modules and touch control modules are integrated In an external hanging type (separated type), an external embedded type (On-Cell) and an embedded type (In-Cell).

With the progress of technology, external Cell (On-Cell) integration or In-Cell (In-Cell) integration becomes the mainstream integration mode, i.e. the touch sensor is directly integrated On one or more layers of the display screen lamination, and the integration can be realized On or In the basic unit In the display screen. In the prior art, two functions of the touch controller and the display driver can be integrated into a single Integrated Circuit (IC) at the same time, and relatively speaking, the touch controller and the display driver can be integrated into a single IC more easily by an embedded integration mode, i.e., the design process is simplified by the embedded integration mode, the cost is saved, and the manufactured display screen is lighter and thinner and has stronger market competitiveness.

The display panel with a touch function is classified into a capacitive type, a resistive type, an infrared type, and the like. The capacitive touch display panel comprises a self-capacitance type and a mutual capacitance type. Mutual capacitance type touch control functions are achieved by driving and sensing two film electrodes, and self capacitance type touch control display panels only need single-layer electrodes, namely the self capacitance type touch control display panels are few in manufacturing process, simple in structure and thinner in film thickness, and the requirements that the lamination of display screen design panels tends to be thinner in the current market are met.

Therefore, the display screen designed by the embedded self-capacitance structure is lighter and thinner, and is more beneficial to being adapted to market competition, but compared with the design of a mutual capacitance structure, the number of touch signal leads of the self-capacitance structure is more, and especially when the touch signal lines of a large-size display screen are designed, the number of the touch signal lines is large, and a wider touch signal line routing area and a wider touch binding position area need to be reserved.

SUMMERY OF THE UTILITY MODEL

To the technical problem that exists among the prior art, the utility model provides a touch screen panel, touch screen panel defines there are display area (AA district) and peripheral district, touch screen panel includes:

a glass cover plate;

the polaroid is arranged below the glass cover plate;

the touch module is arranged below the polaroid, a plurality of touch units and a plurality of first touch lap terminals are arranged on the touch module, the number of the touch units is the same as that of the first touch lap terminals, the touch units are arranged in the display area, the first touch lap terminals are arranged in the peripheral area and positioned on the bottom end face of the touch module, and the touch units are connected to the first touch lap terminals through touch signal leads;

the display module is arranged below the touch module, a second touch overlapping terminal used for being connected with the first touch overlapping terminal is arranged on the top end face of the peripheral area in the display module, a selection switch and a touch binding terminal are further arranged on the display module in the peripheral area, the touch signal lead sequentially passes through the first touch overlapping terminal, the second touch overlapping terminal and the selection switch and is connected to the touch binding terminal, and the number of the touch binding terminals is less than that of the touch units.

Furthermore, a touch signal wire routing area is further arranged on the display module in the peripheral area, and the touch signal lead passes through the selection switch and then is connected to the touch binding terminal through the touch signal wire routing area.

Furthermore, the selection switches are arranged according to one level or M levels, M is a positive integer larger than 1, and the number of the touch signal lead wires is reduced after the touch signal lead wires pass through the selection switches.

Further, the number of the touch signal lead lines is S, the touch signal lead lines are combined according to a ratio of 1.

Furthermore, the number of the touch signal leads is S, the selection switches are arranged according to two stages, the touch signal leads are combined according to the proportion of 1 n to 1 m, the number of the touch signal leads passing through the selection switches is S/(n m), the S/(n m) is a positive integer, and S and n satisfy that S/n is a positive integer.

Further, the structure of the selection switch comprises one of POMS, NMOS and a combination thereof.

Furthermore, a touch switch selection signal line is arranged on the selection switch.

Furthermore, the display module comprises an LTPS substrate and an OLED packaging layer located on the LTPS substrate, wherein a pixel circuit is arranged on the LTPS substrate located in the display area, and a driving circuit is arranged on the LTPS substrate located in the peripheral area.

Furthermore, the touch screen panel is provided with a NOISE line for isolating signal interference between the touch units.

The utility model also provides a display device, display device has included above-mentioned touch-control screen panel.

Compared with the prior art, the utility model provides a technical scheme has following beneficial effect at least: the utility model provides a touch screen panel includes display module and touch module, the laminating of touch module encapsulation is in the display module top, be equipped with touch-control overlap joint terminal on touch module and the display module respectively, the touch-control signal of touch-control unit passes through touch-control overlap joint terminal and transmits the display module among the touch module, in the display module, the touch-control signal lead wire passes through quantity reduction behind the select switch, it merges many touch-control signal lead wires into a touch-control signal lead wire to have realized, thereby the quantity of drawing forth the touch-control signal lead wire that the terminal was bound to the touch-control and the quantity that the terminal was bound to the touch-control has been reduced effectively, the area that location was tied up to touch-control signal line routing area and touch-control has been reduced, the setting of location is tied up for showing provides more spaces.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a touch screen panel according to an embodiment;

fig. 2 is a schematic structural diagram of a touch module according to an embodiment;

FIG. 3 is an enlarged view of the first touch pad terminal shown in FIG. 2;

FIG. 4 is a schematic structural diagram of a display module according to an embodiment;

FIG. 5 is an enlarged schematic view at A in FIG. 4;

FIG. 6 is an enlarged schematic view at B of FIG. 4;

FIG. 7 is a schematic structural diagram of a display module according to another embodiment;

FIG. 8 is an enlarged schematic view at C of FIG. 7;

FIG. 9 is an enlarged schematic view at D of FIG. 7;

FIG. 10 is a schematic diagram of a selector switch according to one embodiment;

FIG. 11 is a circuit schematic of the select switch of FIG. 10;

FIG. 12 is a circuit schematic of another alternative switch of FIG. 10;

FIG. 13 is a schematic diagram of a selector switch according to another embodiment;

FIG. 14 is a circuit schematic of the select switch of FIG. 12;

FIG. 15 is a circuit schematic of another alternative switch of FIG. 12;

wherein the reference numerals are: 100-touch screen panel, 101-display area, 102-peripheral area, 1-glass cover plate, 2-polarizer, 3-touch module, 31-touch unit, 32-touch signal lead, 33-first touch lap terminal, 4-display module, 41-second touch lap terminal, 42-selection switch, 421-touch switch selection signal line, 43-touch binding terminal, 44-touch signal line wiring area, 45-Frit area, 46-drive IC, 47-display drive IC, 48-touch drive IC, 49-display binding terminal.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The AMOLED (active matrix organic light emitting diode) display screen technology comprises the steps of manufacturing thin film transistors, organic light emitting diodes and other elements on a PSI (active layer) substrate to form a display module, packaging and attaching a touch module on the display module, and finally adding a polarizer and a glass cover plate to form a laminated display screen module. The utility model provides a touch screen panel, this touch screen panel have the laminated structure who is formed by display module, touch module, polaroid, glass apron equally, as shown in fig. 1, touch screen panel 100 is last to be defined has display area 101 (the display area is also called AA district) and peripheral district 102, and touch screen panel 100 is from last structure down to be glass apron 1, polaroid 2, touch module 3, display module 4 in proper order. Wherein, the utility model provides a display module has included LTPS base plate (low temperature polycrystalline silicon base plate) and has set up the OLED (organic light emitting diode) encapsulated layer in LTPS base plate top, according to conventional LTPS base plate structure, is provided with pixel circuit and drive circuit on the LTPS base plate, and pixel circuit sets up in the display area, and drive circuit sets up in the peripheral district.

The schematic structural diagram of the touch module 3 is shown in fig. 2 and fig. 3, the touch module 3 is a self-capacitance structure, a plurality of mutually independent touch units 31 (the touch units are also called self-capacitance blocks) are disposed at a display area 101 in the touch module 3, a plurality of first touch bonding terminals 33 are disposed at a peripheral area 102, the number of the touch units 31 is the same as that of the first touch bonding terminals 33, the first touch bonding terminals 33 are uniformly distributed at the left and right sides of the touch module 3 to optimize the layout of the touch signal leads 32 so as to prevent the touch signal leads 32 from being concentrated at the same end and affecting the distribution of the touch units 31, and each touch unit 31 is connected to the corresponding first touch bonding terminal 33 through the touch signal lead 32. As shown in fig. 1, the first touch pad terminal 33 is disposed on the bottom end surface of the touch module 3 to facilitate the attachment of the first touch pad terminal 33 and the second touch pad terminal 41.

As shown in fig. 4-6, a peripheral region 102 of the display module 4 is provided with second touch pad terminals 41, a selection switch 42, touch bonding terminals 43, a touch signal line routing region 44, a Frit region 45 (the Frit region is also referred to as a package region), and a driver IC 46, the second touch pad terminals 41 are disposed on the left and right sides of the display module 4, the selection switch 42 is disposed on the right side of the second touch pad terminals 41 (i.e., the selection switch 42 is close to the second touch pad terminals 41), the touch signal line routing region 44 extends from the left and right sides of the display module 4 to be connected to the touch bonding terminals 43, the touch signal lead 32 is led out from the touch unit 31 and then passes through the first touch pad terminals 33, the second touch pad terminals 41, the selection switch 42, and the touch signal line routing region 44 to be connected to the touch bonding terminals 43, and the number of the touch bonding terminals 43 is less than that of the touch unit 31. As shown in fig. 1, the Frit region 45 is used for encapsulating the touch module 3 and the display module 4, and the second touch pad terminal 41 is disposed on the top end surface of the display module 4 so as to be attached to the first touch pad terminal 33. The Display module provided in fig. 4-6 is designed in a TDDI (Touch and Display Driver Integration) scheme, i.e., the Touch chip and the Display chip are integrated into a single chip, and the driving IC 46 is compatible with the Touch driving IC and the Display driving IC. In the display module shown in fig. 4, the driver IC 46 is bonded to a flexible circuit board, i.e., COF (Chip On Film), and lead connections are provided between the driver IC 46 and the touch binding terminals 43, and between the driver IC 46 and the display binding terminals 49.

As shown in fig. 7-9, the second Touch pad terminals 41 are disposed on the left and right sides of the display module 4, and similarly, the second Touch pad terminals 41 are located in the peripheral region 102 and disposed on the top end surface of the display module 4, the left and right sides of the display module 4 are further provided with Touch signal wire routing regions 44, the Touch signal wire routing regions 44 extend to the lower side of the display module 4 and are connected to the Touch bonding terminals 43, the selection switch 42 is disposed on the lower side of the display module 4, the Touch bonding terminals 43 are disposed below the selection switch 42, the Touch bonding terminals 43 and the display bonding terminals 49 are independent of each other, the display driver IC 47 and the Touch driver IC 48 are also independent of each other, and the Touch driver IC 48 is bonded to a Touch Flexible Printed Circuit board, that is, a TPFPC (Touch Flexible Printed Circuit board). Lead connections are provided between the touch bonding terminal 43 and the touch driver IC 48, and between the display bonding terminal 49 and the display driver IC 47. At this time, the selection switch 42 is disposed at the lower side of the display module 4 (i.e. the selection switch 42 is close to the touch-sensing bonding terminals 43), and the connection path of the touch-sensing signal lead 32 can be in the following two ways, one way is that the touch-sensing signal lead 32 is led out from the touch-sensing unit 31 and then connected to the touch-sensing bonding terminals 43 through the first touch-sensing bonding terminal 33, the second touch-sensing bonding terminal 41, the selection switch 42 and the touch-sensing signal lead routing area 44 in sequence, and the number of the touch-sensing bonding terminals 43 is less than that of the touch-sensing unit 31; the second is that the touch signal lead 32 is led out from the touch unit 31 and then connected to the touch binding terminals 43 through the first touch bonding terminal 33, the second touch bonding terminal 41, the touch signal wire routing area 44 and the selection switch 42 in sequence, and the number of the touch binding terminals 43 is less than that of the touch unit 31.

The number of the touch signal leads 32 in the touch module 3 is the same as that of the touch units 31, and the number of the touch signal leads 32 decreases after passing through the selection switch 42, i.e. the number of the touch signal leads 32 finally connected to the touch bonding terminals 43 decreases, when the number of the touch signal leads 32 decreases, the number of the required touch bonding terminals 43 also decreases correspondingly, which means that the number of the touch bonding terminals 43 is less than that of the touch units 31. The selection switch 42 is used to merge the touch signal leads 32, the structure of the selection switch 42 may be a POMS (positive channel Metal Oxide Semiconductor) or an NMOS (Negative channel Metal-Oxide Semiconductor), or may be a combination of the POMS and the NMOS, specifically, as shown in fig. 10, the selection switch 42 is arranged in one stage, 12 touch signal leads 32 (S1-S12) are merged according to a ratio of 1. That is, when the selection switch 42 is set at one level, when the number of the touch signal lead lines 32 is S, the touch signal lead lines 32 are combined according to the ratio of 1.

The selection switch 42 is provided with 3 touch switch selection signal lines (SW 1-SW 3) for controlling the on/off of the touch signal lead lines 32, the number of the touch switch selection signal lines (SW 1-SW 3) is related to the merging ratio of the touch signal lead lines 32, and when the touch signal lead lines 32 are merged according to the ratio of 1. The touch switch selection signal line is also connected to the area where the touch binding terminal 43 is located, that is, the touch switch selection signal line terminal is disposed on the display module 4. The NOISE lines are disposed on the touch screen panel 100 for isolating signal interference between the touch units 31, and specifically (not shown in the figure), two NOISE lines are disposed on the touch module 3, correspondingly, one NOISE line terminal is disposed on each of the left and right sides (the area where the first touch overlapping terminal 33 is located) of the peripheral area 102 of the touch module 3, a corresponding NOISE line terminal is also disposed on the display module 4 (including the area where the touch binding terminal 43 and the second touch overlapping terminal 41 are located), one NOISE line sequentially surrounds each touch unit 31 on the left side and then is connected to the NOISE line terminal on the left side, and the other NOISE line sequentially surrounds each touch unit 31 on the right side and then is connected to the NOISE line terminal on the right side. After the NOISE line is connected to the NOISE line terminal on the touch module 3, the signal transmission path is consistent with the touch signal lead 32.

When all the selection switches 42 are configured as POMS, the touch signal is turned on at a low level. Specifically, as shown in fig. 11, the touch signal starts full-screen scanning from the touch signal lead 32 (S1), the driving IC 46 provides a touch electric signal to the touch signal lead 32 (S1 '), and the remaining touch signal leads 32 (S2 ' -S4 ') are in an off state, so that the touch switch selection signal line (SW 1) is at a low level, the touch switch selection signal lines (SW 2, SW 3) are at a high level, and the touch signal lead 32 (S1) is turned on; the driving IC 46 continues to provide the touch signal to the touch signal lead 32 (S1'), so that the touch signal lead 32 (S1) is turned off, the touch switch selection signal line (SW 2) is at a low level, the touch switch selection signal lines (SW 1, SW 3) are at a high level, the touch signal lead 32 (S2) is turned on, and so on, so as to complete the scanning and sensing of the full-screen touch signal.

When all the selection switches 42 are NOMS, the touch signal is turned on at a high level. Specifically, as shown in fig. 11, the touch signal starts full-screen scanning from the touch signal lead 32 (S1), the driving IC 46 provides a touch electric signal to the touch signal lead 32 (S1 '), and the remaining touch signal leads 32 (S2 ' -S4 ') are in an off state, so that the touch switch selection signal line (SW 1) is at a high level, the touch switch selection signal lines (SW 2, SW 3) are at a low level, and the touch signal lead 32 (S1) is turned on; the driving IC 46 continues to provide the touch signal to the touch signal lead 32 (S1'), so that the touch signal lead 32 (S1) is turned off, the touch switch selection signal line (SW 2) is at a high level, the touch switch selection signal lines (SW 1, SW 3) are at a low level, the touch signal lead 32 (S2) is turned on, and so on, so as to complete the scanning and sensing of the full-screen touch signal.

When the selection switch 42 is a combination of POMS and NOMS, the selection switch 42 (M1, M3, M5, \8230;) is POMS, i.e., ma is POMS, a is odd, the selection switch 42 (M2, M4, M6, \8230;) is NOMS, i.e., mb is NOMS, and b is even, as shown in fig. 12, specifically, when the touch signal is scanned across the full screen, scanning is started from the touch signal lead 32 (S1), the driving IC 46 gives a touch signal to the touch signal lead 32 (S1 '), and the remaining touch signal leads 32 (S2 ', S3', \8230;) are in an off state, and if the touch signal lead 32 (S1) is turned on, the touch switch selection signal line (SW 1) needs to be kept at a low level; if the touch switch selection signal line (SW 1) maintains a high level, the touch signal lead 32 (S1) is turned off, and the touch signal lead 32 (S2) is turned on, so that the scanning and sensing of the full-screen touch signal are completed.

As shown in fig. 13, the selection switch 42 is configured in two stages, that is, a plurality of first-stage selection switches are added on the basis of the first-stage configuration, the 12 touch signal leads 32 (S1-S12) are merged according to the ratio of 1. That is, when the number of the touch signal leads 32 is S, the selection switches 42 are arranged in two stages, the touch signal leads 32 are combined in sequence according to the ratio of 1. The number of the touch switch selection signal lines (SW 1 to SW 5) is related to the merging ratio of the touch signal lead lines 32 and the number of stages of the selection switch setting, and when the touch signal lead lines 32 are sequentially merged according to the ratio of 1 n, 1.

When all the selection switches 42 are configured as POMS, the touch signal is turned on at a low level. Specifically, as shown in fig. 14, the touch signal starts to scan the touch signal lead 32 (S1) in a full screen mode, the driving IC 46 provides a touch electrical signal to the touch signal lead 32 (S1 ″), the touch switch selection signal lines (SW 1, SW 4) are at a low level, the touch switch selection signal lines (SW 2, SW3, SW 5) are at a high level, and the touch signal lead 32 (S1) is turned on; the driving IC 46 continues to provide the touch signal to the touch signal lead 32 (S1 ″), the touch signal lead 32 (S1) is turned off, the touch switch selection signal lines (SW 2, SW 4) are at a low level, the touch switch selection signal lines (SW 1, SW3, SW 5) are at a high level, the touch signal lead 32 (S2) is turned on, and so on.

When all the selection switches 42 are NOMS, the touch signal is turned on at a high level. Specifically, as shown in fig. 14, the touch signal starts to scan the touch signal lead 32 (S1) in a full screen mode, the driving IC 46 provides a touch electrical signal to the touch signal lead 32 (S1 ″), the touch switch selection signal lines (SW 1, SW 4) are at a high level, the touch switch selection signal lines (SW 2, SW3, SW 5) are at a low level, and the touch signal lead 32 (S1) is turned on; the driving IC 46 continues to provide the touch signal to the touch signal lead 32 (S1 ″), the touch signal lead 32 (S1) is turned off, the touch switch selection signal lines (SW 2 and SW 4) are at a high level, the touch switch selection signal lines (SW 1, SW3 and SW 5) are at a low level, the touch signal lead 32 (S2) is turned on, and so on, so as to complete the scanning and sensing of the touch signal.

When the selection switch 42 is configured by a combination of POMS and NOMS, the selection switch 42 (M1, M3, M5, \8230;) is POMS, i.e., ma is POMS, a is odd, the selection switch 42 (M2, M4, M6, \8230;) is NOMS, i.e., mb is NOMS, and b is even, as shown in fig. 15, when the touch signal is scanned across the screen, scanning is started from the touch signal lead 32 (S1), the driving IC 46 provides a touch electrical signal to the touch signal lead 32 (S1 ″), and the remaining touch signal leads 32 (S2 ″, S3 ″, \8230;) are in an off state, and if the touch signal lead 32 (S1) is turned on, the touch switch selection signal lines (SW 1, SW 2) need to be kept at a low level; the driving IC 46 continues to provide the touch signal to the touch signal lead 32 (S1 ″), the touch switch selection signal lines (SW 1, SW 2) keep at the high level, the touch signal lead 32 (S1) is turned off, the touch signal lead 32 (S2) is turned on, and so on, so as to complete the scanning and sensing of the full-screen touch signal.

The utility model provides a touch screen panel application scope includes AMOLED display screen panel, flexible display screen panel from electric capacity structural design.

The utility model also provides a display device, this display device has included foretell touch-control screen panel.

The utility model provides a touch screen panel's principle is according to the high low level change of the touch-control signal of telecommunication and the input of touch-control switch selection signal line that drive IC gave, decides switching on and closing of select switch to control touch-control unit's scanning and closing. The utility model discloses carried out optimal design to the select switch, the touch-control signal lead wire realizes merging and makes to be connected to the touch-control and binds the touch-control signal lead wire quantity reduction of terminal behind the select switch, also makes the required touch-control bind the quantity reduction of terminal simultaneously, has reduced the area that the location was bound to the touch-control effectively, for showing that the setting of binding the location provides more spaces, has also improved the touch-control or the FPC's that binds yield that shows. The utility model discloses well selector switch's design still can reduce the area in touch-control signal line wiring district effectively, is favorable to realizing the structural design of the narrow frame of display screen.

The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A touch screen panel defined with a display area and a peripheral area, the touch screen panel comprising:

a glass cover plate;

the polaroid is arranged below the glass cover plate;

the touch module is arranged below the polaroid, a plurality of touch units and a plurality of first touch lap terminals are arranged on the touch module, the number of the touch units is the same as that of the first touch lap terminals, the touch units are arranged in the display area, the first touch lap terminals are arranged in the peripheral area and positioned on the bottom end face of the touch module, and the touch units are connected to the first touch lap terminals through touch signal leads;

the display module is arranged below the touch module, a second touch overlapping terminal used for being connected with the first touch overlapping terminal is arranged on the top end face of the display module in the peripheral area, a selection switch and a touch binding terminal are further arranged on the display module in the peripheral area, the touch signal lead is connected to the touch binding terminal sequentially through the first touch overlapping terminal, the second touch overlapping terminal and the selection switch, and the number of the touch binding terminals is less than that of the touch units.

2. The touch screen panel of claim 1, wherein the display module in the peripheral area further includes a touch signal wire routing area, and the touch signal lead passes through the selection switch and then is connected to the touch binding terminal through the touch signal wire routing area.

3. The touch screen panel of claim 1, wherein the selection switches are arranged in one stage or M stages, M is a positive integer greater than 1, and the number of the touch signal leads decreases after passing through the selection switches.

4. The touch screen panel of claim 3, wherein the number of the touch signal wires is S, the touch signal wires are combined in a ratio of 1.

5. The touch screen panel of claim 3, wherein the number of the touch signal leads is S, the selection switches are arranged in two stages, the touch signal leads are combined in sequence according to a ratio of 1 n to 1 m, the number of the touch signal leads passing through the selection switches is S/(n x m), S/(n x m) is a positive integer, and S and n satisfy the condition that S/n is a positive integer.

6. The touch screen panel of any one of claims 1-5, wherein the selection switch comprises one of POMS, NMOS, and combinations thereof.

7. The touch screen panel of claim 6, wherein the selection switch has a touch switch selection signal line.

8. The touch screen panel of claim 1, wherein the display module comprises an LTPS substrate and an OLED encapsulation layer on the LTPS substrate, wherein the LTPS substrate in the display area is provided with pixel circuits, and the LTPS substrate in the peripheral area is provided with driving circuits.

9. The touch screen panel of claim 1, wherein the touch screen panel is provided with a NOISE line for isolating signal interference between the touch units.

10. A display device characterized in that it comprises a touch screen panel according to any one of claims 1 to 9.

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