Touch circuit and display panel

Abstract

A touch circuit and a display panel, the touch circuit comprises a control module, a first signal line and a second signal line, the first signal line and the second signal line are electrically connected with the control module, the first signal line and the second signal line are used for being electrically connected with the same touch electrode, wherein the control module is used for outputting a touch pulse signal to the first signal line and the second signal line simultaneously, or the control module is used for outputting a touch pulse signal to the first signal line, when the first signal line is damaged, the control module is used for outputting a touch pulse signal to the second signal line, so that when one of the first signal line and the second signal line is damaged, the control module can still output a touch pulse signal to the touch electrode through the other one to avoid touch failure, improve the stability of the touch circuit, and reduce the maintenance cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display panel, and in particular to a touch circuit and a display panel. BACKGROUND

[0002] In the existing display panel touch technology, a touch electrode (such as a self-capacitance or mutual-capacitance sensor) is usually connected to a touch driving chip through a single signal line. However, this design has the problem of touch function failure and difficult maintenance after the signal line is damaged. SUMMARY

[0003] The purpose of the present application is to provide a touch circuit and a display panel, which solve the problem of touch function failure and difficult maintenance after the signal line is damaged.

[0004] To achieve the purpose of the present application, the present application provides the following technical solutions:

[0005] In a first aspect, the present application provides a touch circuit, comprising: a control module; a first signal line and a second signal line, both of which are electrically connected to the control module, and both of which are used for electrical connection with a same touch electrode; wherein the control module is used for simultaneously outputting a touch pulse signal to the first signal line and the second signal line; or the control module is used for outputting the touch pulse signal to the first signal line, and when the first signal line is damaged, the control module is used for outputting the touch pulse signal to the second signal line.

[0006] In an embodiment, the control module comprises a pulse emission unit, the pulse emission unit is electrically connected to the first signal line and the second signal line, and the pulse emission unit is used for simultaneously outputting the touch pulse signal to the first signal line and the second signal line.

[0007] In an embodiment,

[0008] The control module comprises a pulse emission unit, a touch detection unit and a switching unit, the pulse emission unit is electrically connected to the touch detection unit, the first signal line and the second signal line, and the touch detection unit is electrically connected to the first signal line and the second signal line; wherein the pulse emission unit is used for outputting the touch pulse signal to the first signal line through the switching unit, the touch detection unit is used for receiving a touch feedback signal from the first signal line, the pulse emission unit is used for outputting a detection signal to the switching unit according to the touch feedback signal, and when the first signal line is damaged, the pulse emission unit is used for outputting the touch pulse signal to the second signal line through the switching unit.

[0009] In one embodiment, the switching unit comprises an XOR gate, a first switch and a second switch, an input end of the XOR gate is electrically connected with the touch detection unit, an output end of the XOR gate is electrically connected with a control end of the first switch and a control end of the second switch, an input end of the first switch and an input end of the second switch are electrically connected with the pulse emitting unit, an output end of the first switch is electrically connected with the first signal line, and an output end of the second switch is electrically connected with the second signal line, and the XOR gate is used for controlling the first switch or the second switch to be opened according to the detection signal.

[0010] In one embodiment, the first switch is an N-type thin film transistor, and the second switch is a P-type thin film transistor; or, the first switch is an N-type MOS tube, and the second switch is a P-type MOS tube.

[0011] In the second aspect, the application further provides a display panel comprising a touch electrode and the touch circuit according to any one of the embodiments of the first aspect, and the first signal line and the second signal line are electrically connected with the touch electrode.

[0012] In one embodiment, the touch electrode is a plurality of touch electrodes, the plurality of touch electrodes are arranged at intervals, the first signal line and the second signal line are a plurality of first signal lines and a plurality of second signal lines, and each of the touch electrodes is connected with one of the first signal lines and one of the second signal lines.

[0013] In one embodiment, the display panel further comprises 3N scanning lines, M data lines and NM pixels, the NM pixels are arranged in an array of N rows and M columns, each of the pixels comprises a red sub-pixel, a green sub-pixel and a blue sub-pixel arranged in sequence in the length direction of the scanning line, N and M are positive integers, M red sub-pixels on the nth row are electrically connected with the 3n-2th scanning line, M green sub-pixels on the nth row are electrically connected with the 3n-1th scanning line, M blue sub-pixels on the nth row are electrically connected with the 3nth scanning line, the red sub-pixel, the green sub-pixel and the blue sub-pixel of each of the pixels on the mth column are electrically connected with the mth data line, n is a positive integer less than or equal to N, and m is a positive integer less than or equal to M.

[0014] In one embodiment, the length direction of each of the red sub-pixels, the length direction of each of the green sub-pixels and the length direction of each of the blue sub-pixels are the same as the length direction of the data line.

[0015] In one embodiment, the touch electrodes are multiple, the multiple touch electrodes are arranged at intervals, the first signal lines and the second signal lines are multiple, each of the touch electrodes is connected with one of the first signal lines and one of the second signal lines; one of the first signal lines is arranged between N blue sub-pixels on the mth column and N red sub-pixels on the m+1th column, and one of the second signal lines is arranged between N blue sub-pixels on the m+1th column and N red sub-pixels on the m+2th column.

[0016] By arranging the touch circuit to include a control module, a first signal line and a second signal line, the first signal line and the second signal line are electrically connected with the control module, the first signal line and the second signal line are used to be electrically connected with the same touch electrode, wherein the control module is used to output a touch pulse signal to the first signal line and the second signal line at the same time, or the control module is used to output a touch pulse signal to the first signal line, and when the first signal line is damaged, the control module is used to output a touch pulse signal to the second signal line, so that when one of the first signal line and the second signal line is damaged, the control module can still output a touch pulse signal to the touch electrode through the other one to avoid touch failure, the stability of the touch circuit is improved, and the maintenance cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0018] Figure 1 is a schematic diagram of the touch circuit of one embodiment;

[0019] Figure 2 is a schematic diagram of the touch circuit of another embodiment;

[0020] Figure 3 is a potential diagram of the touch circuit of one embodiment;

[0021] Figure 4 is a switching state and voltage table of the touch circuit of one embodiment under different conditions;

[0022] Figure 5 is a distribution diagram of the touch electrode of one embodiment;

[0023] Figure 6 is a schematic diagram of the display panel of one embodiment;

[0024] Figure 7is a schematic diagram of a display panel of a comparative example;

[0025] Figure 8 is a high-resolution text display schematic diagram of a display panel of the present application;

[0026] Figure 9 is a text edge blur schematic diagram of a display panel of a comparative example.

[0027] BRIEF DESCRIPTION OF DRAWINGS

[0028] 100 - display panel;

[0029] 11 - control module, 111 - processor, 112 - pulse emission unit, 113 - touch detection unit, 114 - switching unit, 1141 - XOR gate, 1142 - first input end, 1143 - second input end, T1 - first switch, T2 - second switch, L1 - first signal line, L2 - second signal line, K1 - first detection signal, K2 - second detection signal, K3 - control signal, V0 - preset voltage, V1 - first voltage, V2 - second voltage, t1 - display stage, t2 - touch stage;

[0030] 20 - touch electrode;

[0031] 30 - scan line;

[0032] 40 - data line;

[0033] 50 - pixel, 51 - red sub-pixel, 52 - green sub-pixel, 53 - blue sub-pixel;

[0034] 60 - gate drive circuit;

[0035] 70 - touch drive chip. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0037] It should be noted that when a component is referred to as being "fixed" to another component, it can be directly on the other component or there can be a middle component. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or there can be a middle component.

[0038] Unless otherwise defined, 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 application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application. The use herein of the terms "and / or" includes a set of one or more associated listed items.

[0039] Some embodiments of the present application will now be described in detail in connection with the accompanying drawings. The following embodiments and features are not mutually exclusive and can be combined with each other.

[0040] Please refer to Figure 1 and Figure 2 The present application provides a touch circuit, comprising a control module 11, a first signal line L1 and a second signal line L2, the first signal line L1 and the second signal line L2 are electrically connected with the control module 11, the first signal line L1 and the second signal line L2 are used for being electrically connected with the same touch electrode 20, wherein the control module 11 is used for outputting a touch pulse signal to the first signal line L1 and the second signal line L2 at the same time, or the control module 11 is used for outputting a touch pulse signal to the first signal line L1, and when the first signal line L1 is damaged, the control module 11 is used for outputting a touch pulse signal to the second signal line L2.

[0041] In an embodiment, please refer to Figure 1 The control module 11 comprises a pulse transmitting unit 112, the pulse transmitting unit 112 is electrically connected with the first signal line L1 and the second signal line L2, and the pulse transmitting unit 112 is used for outputting a touch pulse signal to the first signal line L1 and the second signal line L2 at the same time.

[0042] In a specific embodiment, please refer to Figure 1 The control module 11 further comprises a processor 111 and a touch detection unit 113, the touch detection unit 113 is electrically connected with the processor 111, the first signal line L1 and the second signal line L2, the processor 111 is further electrically connected with the pulse transmitting unit 112, the touch detection unit 113 is electrically connected with the first signal line L1 and the second signal line L2, the processor 111 controls the pulse transmitting unit 112 to output a touch pulse signal to the touch electrode 20 through the first signal line L1 and the second signal line L2, at the same time, the touch detection unit 113 receives the touch pulse signal and outputs a touch feedback signal to the processor 111, when a touch occurs on the touch electrode 20, the touch electrode 20 forms a self-capacitance with a finger, so that the voltage on the touch electrode 20 changes, and then the touch feedback signal outputted by the touch detection unit 113 changes, and the processor 111 can determine whether the touch electrode 20 is touched according to the change amount of the touch feedback signal. Optionally, the touch detection unit 113 is an AFE circuit.

[0043] By setting the pulse transmitting unit 112 in electrical connection with the first signal line L1 and the second signal line L2, the pulse transmitting unit 112 is configured to output the touch pulse signal to the first signal line L1 and the second signal line L2 simultaneously, so that when one of the first signal line L1 and the second signal line L2 is damaged, the control module 11 can still output the touch pulse signal to the touch electrode 20 through the other one to avoid touch failure, thereby improving the stability of the touch circuit, reducing the maintenance cost, and simplifying the structure of the touch circuit, which is conducive to simplifying the manufacturing process, reducing the wiring layer number and electronic components, thereby reducing the production cost of the touch circuit, and improving the product yield, product reliability and compatibility.

[0044] In another embodiment, referring to Figure 2 , the control module 11 includes a pulse transmitting unit 112, a touch detection unit 113 and a switching unit 114, the pulse transmitting unit 112 is in electrical connection with the touch detection unit 113, the first signal line L1 and the second signal line L2, the touch detection unit 113 is in electrical connection with the first signal line L1 and the second signal line L2, wherein the pulse transmitting unit 112 is configured to output the touch pulse signal to the first signal line L1 through the switching unit 114, the touch detection unit 113 is configured to receive the touch feedback signal from the first signal line L1, the pulse transmitting unit 112 is configured to output the detection signal to the switching unit 114 according to the touch feedback signal, and when the first signal line L1 is damaged, the pulse transmitting unit 112 is configured to output the touch pulse signal to the second signal line L2 through the switching unit 114.

[0045] In a specific embodiment, referring to Figure 2 , the control module 11 further includes a processor 111, the processor 111 is in electrical connection with the touch detection unit 113 and the pulse transmitting unit 112, the processor 111 controls the pulse transmitting unit 112 to output the touch pulse signal to the touch electrode 20 through the first signal line L1, and at the same time, the touch detection unit 113 receives the touch pulse signal and outputs the touch feedback signal to the processor 111, when touch occurs on the touch electrode 20, the touch electrode 20 and the finger form a self-capacitance, so that the voltage on the touch electrode 20 changes, thereby causing the touch feedback signal output by the touch detection unit 113 to change, and the processor 111 can determine whether the touch electrode 20 is touched according to the change amount of the touch feedback signal.

[0046] In a specific embodiment, referring to Figures 2 to 4The detection signal includes a first detection signal K1 and a second detection signal K2. When the first signal line L1 is in normal operation, the voltage on the first signal line L1 collected by the touch detection unit 113 is the same as the value range or waveform of the preset voltage V0, the touch detection unit 113 outputs the first detection signal K1 and the second detection signal K2 with the same phase to the switching unit 114, and the switching unit 114 is configured to output the touch pulse signal from the pulse emission unit 112 to the first signal line L1 according to the first detection signal K1 and the second detection signal K2. When the first signal line L1 is damaged, the voltage on the first signal line L1 collected by the touch detection unit 113 is different from the value range or waveform of the preset voltage V0, at this time, the touch detection unit 113 outputs the first detection signal K1 and the second detection signal K2 with opposite phases to the switching unit 114, and the switching unit 114 is configured to output the touch pulse signal from the pulse emission unit 112 to the second signal line L2 according to the first detection signal K1 and the second detection signal K2.

[0047] Optionally, the process of detecting whether the touch feedback signal meets the preset value can be performed by an operation circuit inside the touch detection unit 113, or can be performed in the processor 111, without limitation.

[0048] By setting the control module 11 to include the pulse emission unit 112, the touch detection unit 113 and the switching unit 114, the pulse emission unit 112 is electrically connected with the touch detection unit 113, the first signal line L1 and the second signal line L2, the touch detection unit 113 is electrically connected with the first signal line L1 and the second signal line L2, wherein the pulse emission unit 112 is configured to output the touch pulse signal to the first signal line L1 through the switching unit 114, the touch detection unit 113 is configured to receive the touch feedback signal from the first signal line L1, and the pulse emission unit 112 is configured to output the detection signal to the switching unit 114 according to the touch feedback signal. When the first signal line L1 is damaged, the pulse emission unit 112 is configured to output the touch pulse signal to the second signal line L2 through the switching unit 114, so that when the first signal line L1 is damaged, the control module 11 can still output the touch pulse signal to the touch electrode 20 through the second signal line L2 to avoid touch failure, improve the stability of the touch circuit, reduce the maintenance cost, and the power consumption of the touch circuit is low.

[0049] In the specific embodiment, please refer to Figures 2 to 4The switching unit 114 includes an XOR gate 1141, a first switch T1 and a second switch T2. The input end of the XOR gate 1141 is electrically connected with the touch detection unit 113. The output end of the XOR gate 1141 is electrically connected with the control end of the first switch T1 and the control end of the second switch T2. The input end of the first switch T1 and the input end of the second switch T2 are electrically connected with the pulse emission unit 112. The output end of the first switch T1 is electrically connected with the first signal line L1. The output end of the second switch T2 is electrically connected with the second signal line L2. The XOR gate 1141 is used to control the first switch T1 or the second switch T2 to open according to the detection signal.

[0050] In the specific embodiment, please refer to Figures 2 to 4 The XOR gate 1141 includes a first input end 1142 and a second input end 1143. The first input end 1142 and the second input end 1143 are electrically connected with the touch detection unit 113. The touch detection unit 113 is used to input a first detection signal K1 to the first input end 1142 and is used to input a second detection signal K2 to the second input end 1143. The XOR gate 1141 is used to output a control signal K3 according to the first detection signal K1 and the second detection signal K2.

[0051] Please refer to Figure 3 and Figure 4 , Figure 3 The first signal line L1 is a first voltage V1, and the second signal line L2 is a second voltage V2. In the specific embodiment, the display panel 100 alternately passes through a display stage t1 and a touch stage t2. When the display panel 100 is in the display stage t1, the pulse emission signal stops outputting the touch pulse signal. At this time, the first voltage V1 and the second voltage V2 are both low level. The touch electrode 20 serves as a common electrode of the pixel 50. When the display panel 100 is in the touch stage t2, the pulse emission signal outputs the touch pulse signal. At this time, if the first signal line L1 normally works, the first voltage V1 is the touch pulse signal, and the second voltage V2 is low level. If the first signal line L1 does not normally work, the first voltage V1 is low level, and the second voltage V2 is the touch pulse signal. In this way, the touch electrode 20 can form a self-capacitance with the finger to realize the touch function.

[0052] Figure 4The voltage on each of the first detection signal K1, the second detection signal K2, the control signal K3, the first signal line L1 and the second signal line L2 in the touch circuit when the first signal line L1 is normally working or abnormally working is shown as follows: the first detection signal K1 is high, the second detection signal K2 is high, the control signal K3 is high, the first signal line L1 outputs a touch pulse voltage, and the second signal line L2 outputs a touch pulse voltage, all of which are shown as "1"; the first detection signal K1 is low, the second detection signal K2 is low, the control signal K3 is low, the first signal line L1 does not output a touch pulse voltage, and the second signal line L2 does not output a touch pulse voltage, all of which are shown as "0".

[0053] When the first detection signal K1 and the second detection signal K2 are both high or both low, the control signal K3 output from the XNOR gate 1141 to the control end of the first switch T1 and the control end of the second switch T2 is high, the first switch T1 is opened, the second switch T2 is closed, and the pulse emitting unit 112 outputs a touch pulse signal to the first signal line L1 through the first switch T1.

[0054] When one of the first detection signal K1 and the second detection signal K2 is high and the other is low, the control signal K3 output from the XNOR gate 1141 to the control end of the first switch T1 and the control end of the second switch T2 is low, the first switch T1 is closed, the second switch T2 is opened, and the pulse emitting unit 112 outputs a touch pulse signal to the second signal line L2 through the second switch T2.

[0055] By setting the switching unit 114 to include the XNOR gate 1141, the first switch T1 and the second switch T2, the input end of the XNOR gate 1141 is electrically connected with the touch detection unit 113, the output end of the XNOR gate 1141 is electrically connected with the control end of the first switch T1 and the control end of the second switch T2, the input end of the first switch T1 and the input end of the second switch T2 are both electrically connected with the pulse emitting unit 112, the output end of the first switch T1 is electrically connected with the first signal line L1, and the output end of the second switch T2 is electrically connected with the second signal line L2, the XNOR gate 1141 is used for controlling the first switch T1 or the second switch T2 to be opened according to the detection signal, so that the switching unit 114 can control the first signal line L1 or the second signal line L2 to output a touch pulse signal according to the detection result of the touch detection unit 113, the touch failure is avoided, the stability of the touch circuit is improved, the maintenance cost is reduced, the structure of the switching unit 114 is simple, the switching unit 114 can automatically switch when the first signal line L1 is damaged, and the response speed is fast.

[0056] In one embodiment, the first switch T1 is an N-type thin film transistor, and the second switch T2 is a P-type thin film transistor. When the exclusive NOR gate 1141 outputs a high level, the first switch T1 is opened, and the second switch T2 is closed. When the exclusive NOR gate 1141 outputs a low level, the first switch T1 is closed, and the second switch T2 is opened. By setting the first switch T1 as an N-type thin film transistor and the second switch T2 as a P-type thin film transistor, the first switch T1 and the second switch T2 can be simultaneously manufactured with other conductive lines or switch elements in the same metal layer in a patterned etching process, which simplifies the manufacturing process and production cost of the switching unit 114, and is beneficial to reducing the size of the switching unit 114.

[0057] In another embodiment, the first switch T1 is an N-type MOS transistor, and the second switch T2 is a P-type MOS transistor. When the exclusive NOR gate 1141 outputs a high level, the first switch T1 is opened, and the second switch T2 is closed. When the exclusive NOR gate 1141 outputs a low level, the first switch T1 is closed, and the second switch T2 is opened. By setting the first switch T1 as an N-type MOS transistor and the second switch T2 as a P-type MOS transistor, the sensitivity and switching power consumption of the first switch T1 and the second switch T2 are improved, and thus the switching speed and accuracy of the switching unit 114 are improved.

[0058] By setting the touch circuit to include the control module 11, the first signal line L1, and the second signal line L2, the first signal line L1 and the second signal line L2 are both electrically connected to the control module 11, and the first signal line L1 and the second signal line L2 are both used to be electrically connected to the same touch electrode 20. The control module 11 is used to output a touch pulse signal to the first signal line L1 and the second signal line L2 at the same time, or the control module 11 is used to output a touch pulse signal to the first signal line L1, and when the first signal line L1 is damaged, the control module 11 is used to output a touch pulse signal to the second signal line L2. When one of the first signal line L1 and the second signal line L2 is damaged, the control module 11 can still output a touch pulse signal to the touch electrode 20 through the other one to avoid touch failure, which improves the stability of the touch circuit and reduces the maintenance cost.

[0059] Please refer to Figure 5 The present application also provides a display panel 100, which includes a touch electrode 20 and a touch circuit in the embodiments of the present application, and the first signal line L1 and the second signal line L2 are both electrically connected to the touch electrode 20.

[0060] In one embodiment, please refer to Figure 1 and Figure 5, the processor 111 of the touch circuit controls the pulse transmitting unit 112 to output a touch pulse signal to the touch electrode 20 through the first signal line L1 and the second signal line L2, and the touch detecting unit 113 receives the touch pulse signal and outputs a touch feedback signal to the processor 111, when touch occurs on the touch electrode 20, the touch electrode 20 forms a self-capacitance with the finger, so that the voltage on the touch electrode 20 changes, and then the touch feedback signal output by the touch detecting unit 113 changes, and the processor 111 can determine whether touch occurs on the touch electrode 20 according to the change amount of the touch feedback signal. When one of the first signal line L1 and the second signal line L2 is damaged, the touch circuit in the embodiment of the application can still output a touch pulse signal to the touch electrode 20 through the other one to avoid touch failure, improve the stability of the touch circuit, reduce the maintenance cost, and the structure of the touch circuit is simple, which is beneficial to simplify the manufacturing process and reduce the wiring layer number and electronic components, thereby reducing the production cost of the touch circuit, and also beneficial to improve the product yield, product reliability and compatibility.

[0061] In another embodiment, referring to Figure 2 and Figure 5 , the processor 111 controls the pulse transmitting unit 112 to output a touch pulse signal to the touch electrode 20 through the first signal line L1, and the touch detecting unit 113 receives the touch pulse signal and outputs a touch feedback signal to the processor 111, when touch occurs on the touch electrode 20, the touch electrode 20 forms a self-capacitance with the finger, so that the voltage on the touch electrode 20 changes, and then the touch feedback signal output by the touch detecting unit 113 changes, and the processor 111 can determine whether touch occurs on the touch electrode 20 according to the change amount of the touch feedback signal. When the first signal line L1 is normal, the pulse transmitting unit 112 continues to output a touch pulse signal to the first signal line L1 through the switching unit 114. When the first signal line L1 is damaged, the pulse transmitting unit 112 can output a touch pulse signal to the second signal line L2 through the switching unit 114 to avoid touch failure, improve the stability of the touch circuit, reduce the maintenance cost, and the power consumption of the touch circuit is low.

[0062] In the specific embodiment, referring to Figure 5The plurality of touch electrodes 20 are arranged in an array, and cover the display area of the display panel 100. When a touch occurs, the touch electrode 20 corresponding to the touched position forms a self-capacitance with the finger, and outputs a touch feedback signal to the touch detection unit 113 through the first signal line L1 and / or the second signal line L2, so as to identify the touched area in the processor 111 and complete the touch function.

[0063] In the specific embodiments, refer to Figure 6 The display panel 100 further comprises 3N scanning lines 30, M data lines 40, and NM pixels 50. The NM pixels 50 are arranged in an array of N rows and M columns. Each pixel 50 comprises a red sub-pixel 51, a green sub-pixel 52, and a blue sub-pixel 53 arranged in sequence in the length direction of the scanning line 30. N and M are positive integers. The M red sub-pixels 51 on the nth row are electrically connected to the 3n-2th scanning line 30. The M green sub-pixels 52 on the nth row are electrically connected to the 3n-1th scanning line 30. The M blue sub-pixels 53 on the nth row are electrically connected to the 3nth scanning line 30. The red sub-pixel 51, the green sub-pixel 52, and the blue sub-pixel 53 of each pixel 50 in the mth column are electrically connected to the mth data line 40. n is a positive integer less than or equal to N, and m is a positive integer less than or equal to M.

[0064] In the specific embodiments, refer to Figure 6 The data line 40 is arranged between the red sub-pixel 51 and the green sub-pixel 52 of the corresponding pixel 50, and also arranged between the green sub-pixel 52 and the blue sub-pixel 53 of the corresponding pixel 50, so that there is no space occupied by the data line 40 between adjacent pixels 50, thereby improving the aperture ratio of the display panel 100.

[0065] In the specific embodiments, refer to Figure 6 The display panel 100 further comprises a gate drive circuit 60 and a source drive circuit. The 3N scanning lines 30 are electrically connected to the gate drive circuit 60. The M data lines 40 are electrically connected to the source drive circuit. The gate drive circuit 60 is configured to output a scanning signal to turn on the corresponding sub-pixel 50. The source drive circuit is configured to output a data signal to make the corresponding sub-pixel 50 emit light.

[0066] In the specific embodiments, refer to Figure 6 The control module 11 of the source drive circuit and the touch circuit is integrated in the touch drive chip 70, so as to improve the integration of the display panel 100.

[0067] In the specific embodiments, please refer to Figure 6 and Figure 8 , wherein Figure 8 is a high-resolution text display schematic diagram of the display panel 100 of the present application, the gate drive circuit 60 controls the scanning timing of different sub-pixels 50 independently through different scanning signals, and realizes the display update of part of the sub-pixels 50 in cooperation with the data signal input by the data line 40, thereby improving the aperture ratio and display uniformity of the pixel 50, and being beneficial to realizing the reduction of the frame of the display panel 100 and the reduction of the production cost of the display panel 100.

[0068] By arranging the red sub-pixel 51, the green sub-pixel 52 and the blue sub-pixel 53 of each pixel 50 in the length direction of the scanning line 30 in sequence, the M red sub-pixels 51 on the nth row are electrically connected with the 3n-2th scanning line 30, the M green sub-pixels 52 on the nth row are electrically connected with the 3n-1th scanning line 30, and the M blue sub-pixels 53 on the nth row are electrically connected with the 3nth scanning line 30. The red sub-pixel 51, the green sub-pixel 52 and the blue sub-pixel 53 of each pixel 50 in the mth column are all electrically connected with the mth data line 40, so that the three sub-pixels 50 of each pixel 50 can emit light through time-sharing writing when sharing the same data line 40, the number of data lines 40 and the power consumption of the data line 40 are reduced, the aperture ratio and display uniformity of the pixel 50 are improved, and it is beneficial to realize the reduction of the frame of the display panel 100 and the reduction of the production cost of the display panel 100.

[0069] In the specific embodiments, please refer to Figure 6 The length direction of each red sub-pixel 51, the length direction of each green sub-pixel 52 and the length direction of each blue sub-pixel 53 are all the same as the length direction of the data line 40.

[0070] Please refer to Figure 7 and Figure 9 , Figure 7 is a schematic diagram of a display panel 100 of a comparative example, Figure 9A text edge blur schematic diagram of the display panel 100 of the comparative example. In order to improve the text details or pattern details in the display picture, the display panel 100 usually adopts the Clear Type technology to control the corresponding sub-pixel 50 of the corresponding pixel 50 to emit light, so that the display color tone of the display panel 100 is adjusted according to the picture requirement, thereby increasing the sharpness of the small details in the picture display, and making the image edge more smooth. Due to the reduction of the frame of the display panel 100 and the reduction of the production cost of the display panel 100, the triple-gate architecture will be used to control the pixel 50 in the display panel 100. In the traditional triple-gate architecture, the red sub-pixel 51, the green sub-pixel 52 and the blue sub-pixel 53 of each pixel 50 are arranged along the vertical direction, and the length direction of the sub-pixel 50 is along the horizontal direction, which causes the display picture to be still relatively rough when the Clear Type technology controls the corresponding sub-pixel 50 of the corresponding pixel 50 to emit light to adjust the picture display effect.

[0071] Therefore, in order to solve the problem that the Clear Type technology still has a good picture improvement effect under the triple-gate architecture, the display panel 100 provided by the present application sets the length direction of each red sub-pixel 51, the length direction of each green sub-pixel 52 and the length direction of each blue sub-pixel 53 to be the same as the length direction of the data line 40, so that the improvement effect of the Clear Type technology on the picture display is improved without increasing the power consumption and the driving mode of the display panel 100, and the gate load of the scan signal is also reduced, which is beneficial to reduce the working temperature of the gate driving circuit 60.

[0072] In the specific embodiment, please refer to Figure 5 and Figure 6 The touch electrode 20 is a plurality of touch electrodes 20, and the plurality of touch electrodes 20 are arranged at intervals. The first signal line L1 and the second signal line L2 are both a plurality of signal lines. Each touch electrode 20 is connected to one first signal line L1 and one second signal line L2. One first signal line L1 is arranged between the N blue sub-pixels 53 in the mth column and the N red sub-pixels 51 in the m+1th column. One second signal line L2 is arranged between the N blue sub-pixels 53 in the m+1th column and the N red sub-pixels 51 in the m+2th column. The N pixels 50 in the first column are respectively arranged on the two sides of the first signal line L1 and the second signal line L2.

[0073] Specifically, the length direction of each red sub-pixel 51, the length direction of each green sub-pixel 52 and the length direction of each blue sub-pixel 53 are the same as the length direction of the data line 40, the data line 40 is arranged between the red sub-pixel 51 and the green sub-pixel 52 of the corresponding pixel 50, and is also arranged between the green sub-pixel 52 and the blue sub-pixel 53 of the corresponding pixel 50, so that the gap between adjacent pixels 50 is increased, so that the first signal line L1 and the second signal line L2 can be arranged in the gap between adjacent pixels 50, and specifically can be arranged in the same metal layer as the data line 40, thereby reducing the wiring layer of the display panel 100, and being beneficial to the thinning of the display panel 100.

[0074] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like refer to the orientation or positional relationship based on the drawings described, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0075] The above disclosure is only a preferred embodiment of the present application, and of course cannot limit the scope of the present application, and those skilled in the art can understand that all or part of the above-mentioned embodiments can be implemented, and equivalent changes made according to the claims of the present application still belong to the scope of the present application.

Claims

1. A touch circuit, comprising: include: Control module; Both the first signal line and the second signal line are electrically connected to the control module, and both the first signal line and the second signal line are used to be electrically connected to the same touch electrode. The control module is used to output a touch pulse signal to the first signal line, and when the first signal line is damaged, the control module is used to output the touch pulse signal to the second signal line. The control module further includes a pulse transmitting unit, a touch detection unit, and a switching unit. The pulse transmitting unit is electrically connected to the switching unit, and the touch detection unit is electrically connected to the switching unit, the first signal line, and the second signal line. The pulse transmitting unit is used to output the touch pulse signal to the first signal line through the switching unit. The touch detection unit is used to receive the touch feedback signal from the first signal line. The touch detection unit is used to output a first detection signal and a second detection signal to the switching unit according to the touch feedback signal. When the first signal line is working normally, the first detection signal and the second detection signal are in phase, and the switching unit is used to output the touch pulse signal to the first signal line. When the first signal line is damaged, the first detection signal and the second detection signal are out of phase, and the switching unit is used to output the touch pulse signal to the second signal line.

2. The touch circuit of claim 1, wherein, The switching unit includes an XOR gate, a first switch, and a second switch. The input terminal of the XOR gate is electrically connected to the touch detection unit, and the output terminal of the XOR gate is electrically connected to the control terminals of both the first and second switches. The input terminals of both the first and second switches are electrically connected to the pulse emission unit. The output terminal of the first switch is electrically connected to the first signal line, and the output terminal of the second switch is electrically connected to the second signal line. The XOR gate is used to control the first or second switch to open according to the detection signal.

3. The touch circuit of claim 2, wherein, The first switch is an N-type thin-film transistor, and the second switch is a P-type thin-film transistor; or, the first switch is an N-type MOS transistor, and the second switch is a P-type MOS transistor.

4. A display panel, characterized by, It includes a touch electrode and a touch circuit as described in any one of claims 1-3, wherein the first signal line and the second signal line are both electrically connected to the touch electrode.

5. The display panel of claim 4, wherein, There are multiple touch electrodes, which are spaced apart. There are multiple first signal lines and multiple second signal lines. Each touch electrode is connected to one first signal line and one second signal line.

6. The display panel of claim 4, wherein, The display panel also includes 3N scan lines, M data lines and NM pixels. The NM pixels are arranged in an array of N rows and M columns. Each pixel includes a red sub-pixel, a green sub-pixel and a blue sub-pixel arranged sequentially along the length of the scan line. N and M are both positive integers. M red sub-pixels on the nth row are electrically connected with the 3n-2th scanning line, M green sub-pixels on the nth row are electrically connected with the 3n-1th scanning line, M blue sub-pixels on the nth row are electrically connected with the 3nth scanning line, the red sub-pixel, the green sub-pixel and the blue sub-pixel of each pixel on the mth column are electrically connected with the mth data line, n is a positive integer less than or equal to N, and m is a positive integer less than or equal to M.

7. The display panel of claim 6, wherein, The length direction of each red sub-pixel, the length direction of each green sub-pixel and the length direction of each blue sub-pixel are the same as the length direction of the data line.

8. The display panel of claim 6, wherein, The touch electrodes are a plurality of, the plurality of touch electrodes are arranged at intervals, the first signal lines and the second signal lines are a plurality of, each touch electrode is connected with a first signal line and a second signal line; N blue sub-pixels on the mth column and N red sub-pixels on the m+1th column are arranged with a first signal line therebetween, N blue sub-pixels on the m+1th column and N red sub-pixels on the m+2th column are arranged with a second signal line therebetween.

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