WO2022198774A1 - 检测方法、显示面板、驱动芯片及显示装置 - Google Patents
检测方法、显示面板、驱动芯片及显示装置 Download PDFInfo
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- WO2022198774A1 WO2022198774A1 PCT/CN2021/094560 CN2021094560W WO2022198774A1 WO 2022198774 A1 WO2022198774 A1 WO 2022198774A1 CN 2021094560 W CN2021094560 W CN 2021094560W WO 2022198774 A1 WO2022198774 A1 WO 2022198774A1
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- touch
- circuit
- short
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- touch electrodes
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- 238000001514 detection method Methods 0.000 title claims abstract description 520
- 238000012360 testing method Methods 0.000 claims description 23
- 239000004973 liquid crystal related substance Substances 0.000 claims description 4
- 238000003491 array Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 19
- 238000000034 method Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005669 field effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000004984 smart glass Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/2205—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested
- G06F11/2221—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested to test input/output devices or peripheral units
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
Definitions
- the present application relates to display technology, for example, to a detection method, a display panel, a driver chip and a display device.
- Display panels with touch functions are widely used in display devices such as mobile phones and wearable devices, so that the display devices can realize human-computer interaction functions in a simple and convenient way.
- a display panel with a touch function is usually provided with a plurality of touch electrodes, and corresponding touch operations are implemented by detecting signal changes on the plurality of touch electrodes.
- the present application provides a detection method, a display panel, a driving chip and a display device to detect touch electrodes in the display panel.
- the display panel includes at least one first touch area group and a plurality of touch wires; the first touch area group includes touch electrodes in two rows and N columns; each touch wire One-to-one electrical connection with each touch electrode; wherein, N ⁇ 1, and N is a positive integer;
- the display panel further includes a first detection circuit and a second detection circuit; each of the touch electrodes is electrically connected to the first detection circuit and the second detection circuit respectively through the touch traces;
- the touch electrodes in two rows and N columns include a first touch electrode row and a second touch electrode row; the first touch electrode row and the second touch electrode row are adjacent to each other;
- the display panel includes a touch short circuit detection stage; the touch short circuit detection stage includes a first detection stage;
- the detection method includes:
- a short-circuit detection signal is provided to the touch electrodes in the first touch electrode row through the first detection circuit
- the short-circuit feedback signal generated by the second detection circuit it is determined whether adjacent touch electrodes located in the same column are short-circuited.
- a display panel includes: a driving chip, at least one first touch area group and a plurality of touch wires; the first touch area group includes touch electrodes in two rows and N columns; Each touch trace is electrically connected to each touch electrode in a one-to-one correspondence; wherein, N ⁇ 1, and N is a positive integer;
- the display panel further includes a first detection circuit and a second detection circuit; each of the touch electrodes is electrically connected to the first detection circuit and the second detection circuit respectively through the touch traces;
- the touch electrodes in two rows and N columns include a first touch electrode row and a second touch electrode row; the first touch electrode row and the second touch electrode row are adjacent to each other;
- the display panel includes a touch short circuit detection stage; the touch short circuit detection stage includes a first detection stage;
- the driving chip is configured to provide a short-circuit detection signal to the touch electrodes in the first touch electrode row through the first detection circuit in the first detection stage, and generate a short-circuit detection signal according to the second detection circuit
- the short-circuit feedback signal of determines whether there is a short circuit between adjacent touch electrodes located in the same column.
- a driving chip is also provided, and the driving chip is used for performing the above-mentioned detection method.
- a display device is also provided, which includes the above-mentioned display panel.
- FIG. 1 is a schematic structural diagram of a display panel provided by an embodiment of the present application.
- FIG. 2 is a flowchart of a detection method provided by an embodiment of the present application.
- FIG. 3 is a schematic structural diagram of another display panel provided by an embodiment of the present application.
- FIG. 4 is a schematic structural diagram of another display panel provided by an embodiment of the present application.
- FIG. 5 is a schematic structural diagram of another display panel provided by an embodiment of the present application.
- FIG. 6 is a schematic structural diagram of another display panel provided by an embodiment of the present application.
- FIG. 7 is a timing diagram of multiple signals in a first detection circuit and a second detection circuit provided by an embodiment of the present application;
- Fig. 8 is a timing chart of a plurality of signals in another first detection circuit and a second detection circuit provided by an embodiment of the present application;
- FIG. 9 is a schematic structural diagram of another display panel provided by an embodiment of the present application.
- FIG. 10 is a schematic structural diagram of a display device provided by an embodiment of the present application.
- the embodiment of the present application provides a detection method.
- the display panel includes at least one first touch area group and a plurality of touch wires; the first touch area group includes touch electrodes in two rows and N columns; each touch wire corresponds to each touch electrode one-to-one Electrical connection; wherein, N ⁇ 1, and N is a positive integer; the display panel further includes a first detection circuit and a second detection circuit; each touch electrode is respectively connected with the first detection circuit and the second detection circuit through the touch traces electrically connected; touch electrodes in two rows and N columns include a first touch electrode row and a second touch electrode row; the first touch electrode row and the second touch electrode row are adjacent to each other; the display panel includes a touch short circuit detection stage
- the touch short-circuit detection stage includes a first detection stage; the detection method includes: in the first detection stage, a short-circuit detection signal is provided to the touch electrodes in the first touch electrode row through a first detection circuit, and a short-circuit detection signal is provided according to the second detection circuit.
- a short-circuit detection signal is provided to the touch electrodes in the first touch electrode row through the first detection circuit, and fed back to the second detection circuit according to the touch electrodes adjacent to the touch electrodes and located in the same column to determine whether there is a short circuit between adjacent touch electrodes in the same row, so as to solve the problem of metal residues between the touch electrodes during the preparation of the touch electrodes in the display panel, which affects subsequent touch detection. Realize accurate testing of touch electrodes.
- FIG. 1 is a schematic structural diagram of a display panel provided by an embodiment of the present application.
- the display panel 100 provided by an embodiment of the present application includes at least one first touch area group 20 and a plurality of touch wires 30 ;
- the first touch area group 20 includes touch electrodes 40 in two rows and N columns; N ⁇ 1, and N is a positive integer; each touch electrode 40 in two rows and N columns includes a first touch electrode row 41 and a first touch electrode row 41 ;
- Two touch electrode rows 42; the first touch electrode row 41 and the second touch electrode row 42 are adjacent to each other; each touch trace 30 is electrically connected to each touch electrode 40 in a one-to-one correspondence;
- the display panel 100 includes two first touch area groups 20, and each first touch area group 20 includes touch electrodes 40 in two rows and six columns as an example for description, but this example does not constitute a limitation of the present application, that is,
- the display panel 100 may include one first touch area group 20 , two first touch area groups 20 or more first touch area groups 20 , and each
- the display panel 100 further includes a first detection circuit 50 and a second detection circuit 60 ; each touch electrode 40 is electrically connected to the first detection circuit 50 and the second detection circuit 60 through the touch traces 30 , respectively, That is, one end of the touch trace 30 connected to the touch electrode 40 is electrically connected to the first detection circuit 50 , and the other end is electrically connected to the second detection circuit 60 .
- the display panel 100 includes a touch short circuit detection stage; the touch short circuit detection stage includes a first detection stage.
- FIG. 2 is a flowchart of a detection method provided by an embodiment of the present application. As shown in FIG. 2 , the detection method provided by an embodiment of the present application includes the following steps.
- S110 in the first detection stage, provide a short-circuit detection signal to the touch electrodes 40 in the first touch electrode row 41 through the first detection circuit 50 .
- the display panel 100 includes four rows of touch electrodes 40 arranged in an array, the touch electrodes ( 411 , 412 , 413 , 414 , 415 , 416 ) in the first row and the touch electrodes 40 in the second row.
- the control electrodes (421, 422, 423, 424, 425, 426) constitute a first touch area group 20, the touch electrodes (431, 432, 433, 434, 435, 436) in the third row and the The touch electrodes (441, 442, 443, 444, 445, 446) constitute a first touch area group 20, wherein the touch electrodes (411, 412, 413, 414, 415, 416) in the first row and the The touch electrodes ( 431 , 432 , 433 , 434 , 435 , 436 ) in the three rows are the first touch electrode row 41 ; the touch electrodes ( 421 , 422 , 423 , 424 , 425 , 426 ) in the second row are The touch electrodes ( 441 , 442 , 443 , 444 , 445 , 446 ) in the fourth row are all the second touch electrode row 42 .
- the touch electrodes ( 411 , 412 , 413 , 414 , 415 , 416 ) in the first row and the touch electrodes ( 431 , 432 , 433 , 434 , 435, 436) provide a short circuit detection signal.
- the short circuit detection signal received by the touch electrodes 411 will be transmitted to the touch electrodes 421 , and the touch traces 30 electrically connected to the touch electrodes 421 will be transmitted to the touch electrodes 421 .
- the short-circuit detection signal will be output to the second detection circuit 60; if the touch electrode 431 and the touch electrode 421 are short-circuited, the short-circuit detection signal received by the touch electrode 431 will also be transmitted to the touch electrode 421, and the touch electrode
- the touch trace 30 electrically connected to 421 will also output the short circuit detection signal to the second detection circuit 60, and the second detection circuit 60 will feedback a signal based on this, namely the short circuit feedback signal, according to the short circuit feedback signal, the touch control can be determined
- a short circuit occurs between the electrodes 411 and the touch electrodes 421; or, a short circuit occurs between the touch electrodes 431 and the touch electrodes 421, or between the touch electrodes 411 and the touch electrodes 421 and between the touch electrodes 431 and the touch electrodes
- a short circuit occurs between 421.
- the short circuit detection signal received by the touch electrodes 431 will be transmitted to the touch electrodes 441 , and the touch traces 30 electrically connected to the touch electrodes 441 will send the short circuit detection signal
- the output is output to the second detection circuit 60 , and the second detection circuit 60 feeds back a short-circuit feedback signal based on this. According to the short-circuit feedback signal, it can be determined that a short circuit occurs between the touch electrodes 441 and the touch electrodes 431 .
- the feedback signal to the second detection circuit 60 is based on the touch electrodes 40 adjacent to the touch electrodes 40 and located in the same column. , it is possible to detect whether there is a short circuit between adjacent touch electrodes 40 in the same row.
- FIG. 3 is a schematic structural diagram of another display panel provided by an embodiment of the present application.
- the second detection circuit 60 includes a plurality of multiplexing modules 61 ; the multiplexing module 61 includes a first The input terminal in1 and M first output terminals out1, M ⁇ 2, and M is a positive integer; The row and adjacent M touch electrodes 40 are electrically connected.
- the second detection circuit 60 includes six multiplexing module groups 62 , and the six multiplexing module groups 62 are in one-to-one correspondence with the six touch electrode columns, that is, one multiplexing module group. 62 corresponds to one touch electrode row.
- Each multiplexing module group 62 includes two multiplexing modules 61 , and the two multiplexing modules 61 are a first multiplexing module 611 and a second multiplexing module 612 respectively.
- the two first output terminals out1 of the first multiplexing module 611 in the multiplexing module group 62 corresponding to the first row of the touch electrode row are electrically connected to the touch electrodes 411 and 421 respectively through the touch traces 30 .
- each multiplexing module group 62 includes two multiplexing modules 61 .
- each multiplexing module group 62 includes L/2 multiplexing modules 61, namely the first multiplexing module 611, the second multiplexing module 612, .
- FIG. 3 shows that the multiplexing module 61 includes a first input terminal in1 and two first output terminals out1, and the two first output terminals out1 are electrically connected to the two adjacent touch electrodes 40 located in the same row respectively. connection; if the multiplexing module 61 includes the first input terminal in1 and three, four or N first output terminals out1, correspondingly, the three first output terminals out1 are respectively electrically connected to the adjacent three, Four or N touch electrodes 40 .
- the detection method provided by the embodiment of the present application further includes: in the first detection stage, providing a short-circuit detection signal to the touch electrodes 40 in the first touch electrode row 41 through the first detection circuit 50 , and generating a short circuit detection signal according to the first detection circuit 50
- the short-circuit feedback signal of determines whether the touch electrodes 40 located in the same column and adjacent to each other are short-circuited.
- the short-circuit detection signal received by the touch electrode 411 will be transmitted to the touch electrode 421 .
- the control wiring 30 will output the short-circuit detection signal to the multiplexing module 61 electrically connected to the touch wiring 30; if the touch electrode 431 and the touch electrode 421 are short-circuited, the short-circuit detection signal received by the touch electrode 431
- the signal will also be transmitted to the touch electrodes 421 , and the touch traces 30 electrically connected to the touch electrodes 421 will also output the short-circuit detection signal to the multiplexing module 61 electrically connected to the touch traces 30 .
- the selection module 61 feeds back this signal through the first input terminal in1, that is, a short-circuit feedback signal.
- a short circuit occurs between the touch electrode 411 and the touch electrode 421;
- a short circuit occurs between the control electrodes 421 , or a short circuit occurs between the touch electrodes 411 and the touch electrodes 421 and between the touch electrodes 431 and the touch electrodes 421 .
- the short-circuit detection signal can also be output to the first detection circuit 50 electrically connected to the touch trace 30 through the touch trace 30 electrically connected to the touch electrode 421 .
- the first detection circuit 50 is based on the This will feed back a signal, that is, a short-circuit feedback signal.
- the short-circuit feedback signal it can be determined that a short circuit occurs between the touch electrode 411 and the touch electrode 421; or, a short circuit occurs between the touch electrode 431 and the touch electrode 421, or, Short circuits occur between the touch electrodes 411 and the touch electrodes 421 and between the touch electrodes 431 and the touch electrodes 421 .
- the short-circuit detection signal may be provided to the touch electrodes 40 in the first touch-control electrode row 41 through the first detection circuit 50 , and then the short-circuit feedback signal fed back by the second detection circuit 60 may be used to determine that the electrodes are located in the same A short circuit occurs between adjacent touch electrodes 40 in a row; a short circuit detection signal can also be provided to the touch electrodes 40 in the first touch electrode row 41 through the first detection circuit 50 , and then the feedback signal is fed back by the first detection circuit 50 .
- the short-circuit feedback signal determines that a short circuit occurs between adjacent touch electrodes 40 located in the same column. In this way, the short-circuit detection between adjacent touch electrodes 40 located in the same column becomes flexible, and is not limited to detection by the second detection circuit 60 .
- a short circuit occurs between the touch electrode 411 and the touch electrode 421; or, a short circuit occurs between the touch electrode 431 and the touch electrode 421, or between the touch electrode 411 and the touch electrode 421 and the touch
- the short circuit occurs between the electrodes 431 and the touch electrodes 421 for illustration, and other touch electrodes 40 located in the same row and adjacent to each other are also applicable to this method.
- the touch electrodes ( 411 , 412 , 413 , 414 , 415 , 416 ) in the first row and the touch electrodes ( 431 , 432 , 433 , 434 , 435 , 436 ) in the third row are all
- the first touch electrode row 41; the touch electrodes (421, 422, 423, 424, 425, 426) of the second row and the touch electrodes (441, 442, 443, 444, 445, 446) of the fourth row are all It is the second touch electrode row 42 , that is, the first touch electrode row 41 is located in the odd-numbered row, and the second touch electrode row 42 is located in the even-numbered row. In other optional embodiments, the first touch electrode row 41 may also be located in an even-numbered row, and the second touch electrode row 42 may be located in an odd-numbered row.
- a plurality of touch electrodes 40 are arranged in an array, and the first detection circuit 50 and the second detection circuit 60 are respectively located on opposite sides of the touch electrode array.
- the advantage of this arrangement is that it is beneficial to wiring, simplifies the structure of the display panel, and improves the production efficiency of the display panel.
- the display panel 100 further includes at least one second touch area group 21 ; the second touch area group 21 includes two columns and L rows of touch electrodes 40 , L ⁇ 2, and L is a positive integer; wherein, in FIG. 3 , the display panel 100 includes three second touch area groups 21 , and each second touch area group 21 includes touch electrodes 40 in two columns and four rows. Examples are explained.
- the display panel 100 may include one second touch area group 21 , two second touch area groups 21 or more second touch area groups 21 , and each first touch area group 21
- the two touch area groups 21 may include touch electrodes 40 in two rows and two columns, or touch electrodes 40 in two rows and more columns.
- the touch electrodes 40 in two columns and L rows include a first touch electrode column 43 and a second touch electrode column 44 ; the first touch electrode column 43 and the second touch electrode column 44 are adjacent to each other;
- the control short circuit detection stage further includes a second detection stage; wherein, the second detection stage may be located before the first detection stage, or may be located after the first detection stage.
- the detection method further includes: in the second detection stage, providing a short-circuit detection signal to the touch electrodes 40 located in the first touch electrode row 43 through the multiplexing module 61 corresponding to the first touch electrode row 43, and according to the The short circuit feedback signal generated by the multiplexing module 61 corresponding to the second touch electrode row 44 determines whether there is a short circuit between the touch electrodes 40 in the same row.
- each multiplexing module group 62 includes two multiplexing modules 61 , and the two multiplexing modules 61 are a first multiplexing module 611 and a second multiplexing module 612 respectively.
- the second detection phase may, for example, comprise a first detection sub-phase and a second detection sub-phase.
- the first detection sub-stage through the multiplexing module 61 in the multiplexing module group 62 corresponding to the first touch electrode row 43, the multiplexing module 61 located in the first touch electrode row 43 and located in the first touch electrode row
- the touch electrodes 40 of 41 provide a short circuit detection signal.
- the first multiplexing module 611 provides a short circuit detection signal to the touch electrodes 411 and the second multiplexer module 612 provides a short circuit detection signal to the touch electrodes 431 .
- the short circuit detection signal received by the touch electrodes 411 will be transmitted to the touch electrodes 412 , and the touch traces 30 electrically connected to the touch electrodes 412 will transmit the short circuit detection signal Output to the first multiplexing module 611 corresponding to the second touch electrode row 44; if the touch electrodes 413 and 412 are short-circuited, the short-circuit detection signal received by the touch electrodes 413 will also be transmitted to the touch electrodes 412, the touch traces 30 electrically connected to the touch electrodes 412 will output the short-circuit detection signal to the first multiplexing module 611 corresponding to the second touch electrode row 44, and the first multiplexing module 611 is based on This will feedback a signal, that is, a short circuit feedback signal, according to the short circuit feedback signal, it can be determined whether a short circuit occurs between the touch electrodes 411 and the touch electrodes 412; or, whether a short circuit occurs between the touch electrodes 413 and the touch
- the short-circuit detection signal received by the touch electrodes 431 will be transmitted to the touch electrodes 432, and the touch traces 30 electrically connected to the touch electrodes 432 will short-circuit the signals.
- the detection signal is output to the second multiplexing module 612 corresponding to the second touch electrode row 44; if the touch electrode 433 and the touch electrode 432 are short-circuited, the short-circuit detection signal received by the touch electrode 433 will be transmitted to the touch
- the electrodes 432, the touch traces 30 electrically connected to the touch electrodes 432 will output the short-circuit detection signal to the second multiplexing module 612 corresponding to the second touch electrode row 44, and the second multiplexing module 612 Based on this, a signal is fed back, that is, a short-circuit feedback signal.
- the short-circuit feedback signal it can be determined whether a short circuit occurs between the touch electrodes 431 and the touch electrodes 432 ; or, whether a short circuit occurs between the touch electrodes 433 and the touch electrodes 432 . ; or, whether a short circuit occurs between the touch electrode 431 and the touch electrode 432 and between the touch electrode 433 and the touch electrode 432 . That is to say, the short-circuit detection signal is provided to the touch electrodes 40 located in the first touch electrode row 43 and in the first touch electrode row 41 .
- the multiplex selection module 61 corresponding to the touch electrodes 40 of 41 receives the signal, it can be determined that the touch electrodes 40 located in the second touch electrode row 44 and in the first touch electrode row 41 are adjacent to the touch electrodes 40 The touch electrodes 40 are short-circuited.
- the touch electrodes 40 of 42 provide a short circuit detection signal.
- the first multiplexing module 611 provides a short circuit detection signal to the touch electrodes 421 and the second multiplexer module 612 provides a short circuit detection signal to the touch electrodes 441 .
- the short-circuit detection signal received by the touch electrode 421 will be transmitted to the touch electrode 422, and the touch trace 30 electrically connected to the touch electrode 422 will send the short-circuit detection signal
- the output is output to the first multiplexing module 611 corresponding to the second touch electrode row 44 .
- the short-circuit detection signal received by the touch electrode 423 will be transmitted to the touch electrode 422 , the touch traces 30 electrically connected to the touch electrodes 422 will output the short-circuit detection signal to the first multiplexing module 611 corresponding to the second touch electrode row 44 , and the first multiplexing module 611 is based on this A signal, that is, a short-circuit feedback signal, will be fed back, and according to the short-circuit feedback signal, it can be determined whether a short circuit occurs between the touch electrode 421 and the touch electrode 422; or, whether a short circuit occurs between the touch electrode 423 and the touch electrode 422; Whether a short circuit occurs between the control electrodes 421 and the touch electrodes 422 and between the touch electrodes 423 and the touch electrodes 422 .
- the short-circuit detection signal received by the touch electrodes 441 will be transmitted to the touch electrodes 442, and the touch traces 30 electrically connected to the touch electrodes 442 will short-circuit the signals.
- the detection signal is output to the second multiplexing module 612 corresponding to the second touch electrode row 44.
- the short-circuit detection signal received by the touch electrode 443 will be transmitted to the touch The electrodes 442, the touch traces 30 electrically connected to the touch electrodes 442 will output the short-circuit detection signal to the second multiplexing module 612 corresponding to the second touch electrode row 44, and the second multiplexing module 612 Based on this, a signal is fed back, that is, a short-circuit feedback signal.
- the short-circuit feedback signal it can be determined whether a short circuit occurs between the touch electrodes 441 and the touch electrodes 442 ; or, whether a short circuit occurs between the touch electrodes 443 and the touch electrodes 442 .
- the short-circuit detection signal is provided to the touch electrodes 40 located in the first touch electrode row 43 and in the second touch electrode row 42 .
- the multiplexing module 61 corresponding to the touch electrodes 40 of 42 receives the signal, it can determine the touch electrodes 40 located in the second touch electrode row 44 and the touch electrodes 40 in the second touch electrode row 42 and their adjacent touch electrodes 40 A short circuit has occurred.
- the above example is only taken as an example of whether there is a short circuit between adjacent touch electrodes 40 located in the same row in one of the second touch area groups 21 , and the detection method is also applicable to other second touch area groups 21 . In the detection of whether there is a short circuit between adjacent touch electrodes 40 located in the same row.
- the touch electrodes (411, 421, 431, 441) in the first row, the touch electrodes (413, 423, 433, 443) in the third row, and the touch electrodes (415) in the fifth row are used.
- 425, 435, 445) are the first touch electrode row 43; touch electrodes (412, 422, 432, 442) in the second row, touch electrodes (414, 424, 434, 444) in the fourth row
- the touch electrodes ( 416 , 426 , 436 , 446 ) in the sixth row are all the second touch electrode rows 44 , that is, the first touch electrode rows 43 are located in odd-numbered rows, and the second touch electrode rows 44 are located in even-numbered rows.
- the first touch electrode columns 43 may also be located in even-numbered columns
- the second touch-control electrode columns 44 may be located in odd-numbered columns.
- FIG. 4 is a schematic structural diagram of another display panel provided by an embodiment of the present application.
- the second detection circuit 60 includes M first control lines 63 ;
- the path selection module 61 includes M first switch units 64; the control terminals of the first switch units 64 with the same sequence number in different multiplex selection modules 61 are electrically connected to the same first control line 63; the same multiplex selection module 61
- the first terminals of the M first switch units 64 in the M are electrically connected to the first input terminal in1; the second terminals of the M first switch units 64 in the same multiplexing module 61 correspond to the
- the M touch electrodes 40 located in the same row and adjacent to each other are electrically connected.
- the second detection stage includes the first detection substage, ..., the Mth detection substage; wherein, 1 ⁇ i ⁇ M, and i is a positive integer;
- a short circuit detection signal is provided to the touch electrodes 40 located in the first touch electrode row 43 through the multiplexing module 61 , and the short circuit generated by the multiplexing module 61 corresponding to the second touch electrode row 44 is provided with a short circuit detection signal.
- the feedback signal determines whether there is a short circuit between the touch electrodes 40 in the same row, including:
- a first enable signal is sent to the i-th first control line 63 to provide the touch electrodes 40 located in the first touch electrode row 43 through the first switch unit 64 with the sequence number i. short circuit detection signal, and according to the short circuit feedback signal generated by the first switch unit 64 with the arrangement number i corresponding to the second touch electrode row 44 to determine whether there is a short circuit between the touch electrodes 40 in the n*i th row; wherein, n is 1, 2, ..., Z/M, and n is a positive integer, Z is the total number of rows of touch electrodes;
- a short circuit detection signal is provided to the touch electrodes 40 in the first touch electrode row 41 through the first detection circuit 50 , and it is determined according to the short circuit feedback signal generated by the second detection circuit 60 that they are located in the same column and adjacent to each other. Whether there is a short circuit between the touch electrodes 40, including:
- a short-circuit detection signal is provided to the first touch electrodes through the first detection circuit 50, and according to the short-circuit feedback signal generated by the electrical connection of the second touch electrodes to the first switch unit, the adjacent touch electrodes located in the same column and adjacent to each other are determined. Whether the control electrodes 40 are short-circuited; wherein, the first touch electrodes and the second touch electrodes are located in the same first touch area group 20 and in the same touch electrode row.
- the second detection circuit 60 includes two first control lines 63 ; the multiplexing module 61 includes two first switch units 64 ; the same arrangement number in different multiplexing modules 61 is one.
- the control terminals of the first switch units 64 are electrically connected to the same first control line 63 ; the control terminals of the first switch units 64 with the same arrangement number two in different multiplexing modules 61 are electrically connected to the same first control line 63 .
- the second detection stage includes a first detection sub-stage and a second detection sub-stage.
- the first enable signal is sent to the first first control line 63 , the first switch unit 64 with the sequence number one is turned on, and the first input terminal corresponding to the first touch electrode row 43 is turned on.
- the short-circuit detection signal input by in1 provides the short-circuit detection signal and the touch-sensitive electrode to the touch electrodes 411 , 413 , and 415 located in the first touch electrode row 43 and in the first touch electrode row 41 through the first switch unit 64 with the sequence number one.
- Control electrodes 431, 433, 435 provide short-circuit detection signals.
- the short-circuit detection signal received by the touch electrode 411 will be transmitted to the touch electrode 412, and the touch trace 30 electrically connected to the touch electrode 412 will short-circuit the touch electrode 412.
- the detection signal is output to the first switch unit 64 electrically connected to the touch trace 30, located in the second touch electrode row 44, and arranged with a serial number of one; if the touch electrode 413 and the touch electrode 412 are short-circuited, the touch The short circuit detection signal received by the electrode 413 will be transmitted to the touch electrode 412 , and the touch trace 30 electrically connected to the touch electrode 412 will output the short circuit detection signal to the touch trace 30 that is electrically connected to the touch trace 30 and located in the second In the touch electrode row 44 and the first switch unit 64 with the sequence number one, since the first switch unit 64 is turned on, the short-circuit detection signal (short-circuit feedback signal) is output through the first switch unit 64, and the short-circuit feedback signal is output according to the short-circuit feedback signal.
- the signal can determine whether a short circuit occurs between the touch electrode 411 and the touch electrode 412; or whether a short circuit occurs between the touch electrode 413 and the touch electrode 412; Whether a short circuit occurs between the control electrodes 413 and the touch electrodes 412 .
- the short circuit detection signal received by the touch electrodes 431 will be transmitted to the touch electrodes 432 , and the touch traces 30 electrically connected to the touch electrodes 432 will The short-circuit detection signal is output to the first switch unit 64 electrically connected to the touch trace 30, located in the second touch electrode row 44, and arranged with a serial number of one; if the touch electrode 433 and the touch electrode 432 are short-circuited, then The short circuit detection signal received by the touch electrodes 433 will be transmitted to the touch electrodes 432 , and the touch traces 30 electrically connected to the touch electrodes 432 will output the short circuit detection signals to the touch traces 30 that are electrically connected to the touch traces 30 and located in the The second touch electrode row 44 and the first switch unit 64 with the sequence number one are arranged.
- the short-circuit detection signal (short-circuit feedback signal) is output through the first switch unit 64.
- the short-circuit feedback signal can determine whether a short circuit occurs between the touch electrodes 431 and the touch electrodes 432 ; or whether a short circuit occurs between the touch electrodes 433 and the touch electrodes 432 ; or, between the touch electrodes 431 and the touch electrodes 432 and whether a short circuit occurs between the touch electrodes 433 and the touch electrodes 432 .
- the first enable signal is sent to the second first control line 63 , the first switch unit 64 with the sequence number two is turned on, and the first input terminal corresponding to the first touch electrode row 43 is turned on.
- the short-circuit detection signal input by in1 provides the short-circuit detection signal to the touch electrodes 421 , 423 , and 425 located in the first touch electrode row 43 and the second touch electrode row 42 through the first switch unit 64 with the arrangement number two, and to the touch electrodes 421 , 423 and 425 in the second touch electrode row 42 .
- the touch electrodes 441 , 443 and 445 provide short circuit detection signals.
- the short-circuit detection signal received by the touch electrode 421 will be transmitted to the touch electrode 422, and the touch trace 30 electrically connected to the touch electrode 422 will short-circuit the touch electrode 422.
- the detection signal is output to the first switch unit 64 electrically connected to the touch trace 30, located in the second touch electrode row 44, and arranged with a serial number of two; if the touch electrode 423 and the touch electrode 422 are short-circuited, the touch
- the short-circuit detection signal received by the electrode 423 will be transmitted to the touch electrode 422, and the touch trace 30 electrically connected to the touch electrode 422 will output the short-circuit detection signal to the touch trace 30, which is electrically connected to the touch trace 30 and located in the second
- the short-circuit detection signal short-circuit feedback signal
- the short-circuit feedback signal is output by the first switch unit 64, and the short-circuit feedback signal is output according to the short-circuit feedback signal.
- the signal can determine whether a short circuit occurs between the touch electrode 421 and the touch electrode 422; or whether a short circuit occurs between the touch electrode 423 and the touch electrode 422; Whether a short circuit occurs between the control electrodes 423 and the touch electrodes 422 .
- the short circuit detection signal received by the touch electrodes 441 will be transmitted to the touch electrodes 442, and the touch traces 30 electrically connected to the touch electrodes 442 will The short-circuit detection signal is output to the first switch unit 64 electrically connected to the touch trace 30, located in the second touch electrode row 44, and arranged in sequence number two; if the touch electrode 443 and the touch electrode 442 are short-circuited, then The short-circuit detection signal received by the touch electrode 443 will be transmitted to the touch electrode 442 , and the touch trace 30 electrically connected to the touch electrode 442 will output the short-circuit detection signal to the touch trace 30 that is electrically connected to the touch trace 30 and located in the The second touch electrode row 44 and the first switch unit 64 with the arrangement number two, because the first switch unit 64 is turned on, the short-circuit detection signal (short-circuit feedback signal) is output through the first switch unit 64, and according to the The short circuit feedback signal can determine whether
- the above example is only taken as an example of whether there is a short circuit between adjacent touch electrodes 40 located in the same row in one of the second touch area groups 21 , and the detection method is also applicable to other second touch area groups 21 . In the detection of whether there is a short circuit between adjacent touch electrodes 40 located in the same row.
- the above detection method it is possible to detect whether there is a short circuit between the touch electrodes located in the same column and adjacent to each other, and it can also detect whether there is a short circuit between the touch electrodes located in the same row and adjacent to each other, so as to realize touch control.
- the comprehensive and accurate detection of the control electrodes solves the problem of metal residues between the touch electrodes during the preparation of the touch electrodes in the display panel, which affects the subsequent touch detection.
- the structure of the second detection circuit 60 is introduced in the above embodiment, and the structure of the first detection circuit 50 is introduced below.
- FIG. 5 is a schematic structural diagram of another display panel provided by an embodiment of the present application, wherein FIG. 5 is only based on one of the foregoing embodiments,
- the refinement of the first detection circuit 50 does not constitute a limitation to the present application.
- the first detection circuit 50 includes a plurality of gating modules 51 ; the gating module 51 includes a second input end in2 , a third input end in3 and two second output ends out2 ;
- the two output terminals out2 are respectively electrically connected to the first touch electrodes and the second touch electrodes; wherein the first touch electrodes and the second touch electrodes are located in the same first touch area group 20 and in the same touch electrode row .
- the first touch electrode and the second touch electrode can be, for example, the touch electrode 411 and the touch electrode 421; the touch electrode 431 and the touch electrode 441; the touch electrode 412 and the touch electrode 422; the touch electrode 432 and the touch electrode control electrode 442; touch electrode 413 and touch electrode 423; touch electrode 433 and touch electrode 443; touch electrode 414 and touch electrode 424; touch electrode 434 and touch electrode 444; touch electrode 415 and touch electrode Control electrode 425 ; touch electrode 435 and touch electrode 445 ; touch electrode 416 and touch electrode 426 ; and touch electrode 436 and touch electrode 446 .
- a short circuit detection signal is provided to the touch electrodes 40 in the first touch electrode row 41 through the first detection circuit 50 , and it is determined according to the short circuit feedback signal generated by the second detection circuit 60 that they are located in the same column and adjacent to each other. Whether there is a short circuit between the touch electrodes 40, including:
- a short-circuit detection signal is provided to the first touch electrodes through the gating module 51, and according to the short-circuit feedback signal generated by the multiplexing module 61 electrically connected to the first touch electrodes, it is determined that they are located in the same column and are in phase with each other. Whether the adjacent touch electrodes 40 are short-circuited;
- a short circuit detection signal is provided to the touch electrodes 40 in the first touch electrode row 41 through the first detection circuit 50 , and it is determined according to the short circuit feedback signal generated by the first detection circuit 50 that they are located in the same column and adjacent to each other. Whether there is a short circuit between the touch electrodes 40, including:
- a short-circuit detection signal is provided to the second input terminal in2, so that the short-circuit detection signal is transmitted to the first touch electrodes through the gating module 51, and the short-circuit detection signal is determined according to the short-circuit feedback signal generated by the third input terminal in3. Whether the row and adjacent touch electrodes 40 are short-circuited.
- the second input terminal in2 of the gating module 51 is respectively input with a short-circuit detection signal, and the short-circuit detection signal is transmitted to the touch electrodes 411 , 431 , 412 , 432 , 413 , 433 , 414 , 434 , 415, 435, 416, 436.
- the short circuit detection signal received by the touch electrode 421 will be transmitted to the touch electrode 421, and the touch trace 30 electrically connected to the touch electrode 421 will send the short circuit detection signal Output to the multiplexing module 61 electrically connected to the touch wire 30; if the touch electrode 431 and the touch electrode 421 are short-circuited, the short-circuit detection signal received by the touch electrode 431 will also be transmitted to the touch electrode 421,
- the touch traces 30 electrically connected to the touch electrodes 421 also output the short-circuit detection signal to the multiplexing module 61 , and the multiplexing module 61 will feedback a signal based on this, namely the short-circuit feedback signal, according to the short-circuit
- the feedback signal can determine whether a short circuit occurs between the touch electrode 411 and the touch electrode 421; or, a short circuit occurs between the touch electrode 431 and the touch electrode 421; A short circuit occurs between the control electrodes 431 and the touch electrodes 421
- the second input terminal in2 of the gating module 51 is respectively input with a short-circuit detection signal, and the short-circuit detection signal is transmitted to the touch electrodes 411 , 431 , 412 , 432 , 413 , 433 , 414 , 434 , 415, 435, 416, 436.
- the touch electrode 411 and the touch electrode 421 are short-circuited, the short circuit detection signal received by the touch electrode 421 will be transmitted to the touch electrode 421, and the touch trace 30 electrically connected to the touch electrode 421 will send the short circuit detection signal output to the gate module 51 electrically connected to the touch trace 30; if the touch electrode 431 and the touch electrode 421 are short-circuited, the short-circuit detection signal received by the touch electrode 431 will also be transmitted to the touch electrode 421, and the The touch traces 30 electrically connected to the touch electrodes 421 also output the short-circuit detection signal to the gating module 51 , which is fed back through the third input terminal in3 of the gating module 51 , and can also be determined according to the short-circuit feedback signal.
- a short circuit occurs between the touch electrode 411 and the touch electrode 421; or, a short circuit occurs between the touch electrode 431 and the touch electrode 421, or between the touch electrode 411 and the touch electrode 421 and between the touch electrode 431 and the touch electrode 421.
- a short circuit occurs between the touch electrodes 421 .
- the above example is described by taking whether the touch electrodes 411 , 421 , and 431 in the first column are short-circuited as an example. This method is also applicable to the touch electrodes in other columns and other rows.
- FIG. 6 is a schematic structural diagram of another display panel provided by an embodiment of the present application.
- the first detection circuit 50 further includes a second control line 52 , a third The control line 53, the first short-circuit signal supply line 54 and the second short-circuit signal supply line 55;
- the gating module 51 includes a second switch unit 56 and a third switch unit 57; the first end of the second switch unit 56 is short-circuited with the second The signal supply line 55 is electrically connected, and the second end of the second switch unit 56 is electrically connected to the first touch electrodes.
- the control end of the second switch unit 56 is electrically connected to the second control line 52;
- the first end of the third switch unit 57 is electrically connected to the first short-circuit signal supply line 54, and the first end of the third switch unit 57 is electrically connected to the first short circuit signal supply line 54.
- the second ends of the three switch units 57 are electrically connected to the second touch electrodes, wherein the second touch electrodes may be, for example, the touch electrodes 421, 441, 422, 442, 423, 443, 424, 444, 425, 445, 426, 446; the control end of the third switch unit 57 is electrically connected to the third control line 53;
- a short circuit detection signal is provided to the touch electrodes 40 in the first touch electrode row 41 through the gating module 51 , and a short circuit feedback signal is generated according to the multiplex selection module 61 electrically connected to the touch electrodes 40 . Determining whether there is a short circuit between adjacent touch electrodes 40 in the same column includes:
- a second enable signal is sent to the second control line 52, so as to transmit the short-circuit detection signal transmitted by the second short-circuit signal supply line 55 to the first touch electrodes through the second switch unit 56, and according to the The short circuit feedback signal generated by the multiplexing module 61 electrically connected to the first touch electrodes determines whether there is a short circuit between adjacent touch electrodes 40 located in the same row;
- a short circuit detection signal is provided to the touch electrodes 40 in the first touch electrode row 41 through the gating module 51 , and the touch electrodes 40 in the same column and adjacent to each other are determined according to the short circuit feedback signal generated by the gating module 51 . Whether there is a short circuit between the control electrodes 40, including:
- a second enable signal is sent to the second control line 52 to transmit the short-circuit detection signal transmitted by the second short-circuit signal supply line 55 to the first touch electrodes through the second switch unit 56 , while the third The control line 53 receives the third enable signal to turn on the third switch unit 57, and determines whether the touch electrodes 40 located in the same column and adjacent to each other are short-circuited according to the short-circuit feedback signal generated by the first short-circuit signal supply line 54 .
- a short-circuit detection signal is provided to the first touch electrodes through the gating module 51, and a short-circuit detection signal is generated according to the multiplexing module 61 electrically connected to the first touch electrodes.
- the short-circuit feedback signal determines whether there is a short circuit between adjacent touch electrodes 40 in the same column, including:
- a second enable signal is sent to the second control line 52 to transmit the short-circuit detection signal transmitted by the second short-circuit signal supply line 55 to the second switch unit 56 through the second switch unit 56 the first touch electrodes, and according to the short-circuit feedback signal generated by the multiplexing module 61 electrically connected to the first touch electrodes, determine whether there is a short circuit between adjacent touch electrodes 40 located in the same row;
- a short-circuit detection signal is provided to the second input terminal in2, so that the short-circuit detection signal is transmitted to the first touch electrodes through the gating module 51, and is determined according to the
- the short-circuit feedback signal generated by the third input terminal in3 determines whether there is a short circuit between adjacent touch electrodes 40 located in the same column, including:
- a second enable signal is sent to the second control line 52 to transmit the short-circuit detection signal transmitted by the second short-circuit signal supply line 55 to the second switch unit 56 through the second switch unit 56 .
- a touch electrode while the third control line 53 receives a third enable signal to turn on the third switch unit 57 , and determines the position of the third switch unit 57 according to the short-circuit feedback signal generated by the first short-circuit signal supply line 54 Whether there is a short circuit between adjacent touch electrodes 40 in the same row.
- a second enable signal is sent to the second control line 52 , the second switch units 56 in the multiple gating modules 51 are turned on, and the second input terminal in2 transmits
- the short-circuit detection signal is transmitted to the touch electrodes 411 , 431 , 412 , 432 , 413 , 433 , 414 , 434 , 415 , 435 , 416 , 436 through the second short-circuit signal supply line 55 and the conductive second switch unit 56 .
- the short circuit detection signal received by the touch electrodes 411 will be transmitted to the touch electrodes 421 , and the touch traces 30 electrically connected to the touch electrodes 421 will short circuit the short circuit.
- the detection signal is output to the multiplexing module 61 electrically connected to the touch wire 30; if the touch electrode 431 and the touch electrode 421 are short-circuited, the short-circuit detection signal received by the touch electrode 431 will also be transmitted to the touch electrode 421, the touch traces 30 electrically connected to the touch electrodes 421 also output the short-circuit detection signal to the multiplexing module 61, and the multiplexing module 61 will feedback a signal based on this, that is, the short-circuit feedback signal, according to
- the short circuit feedback signal can determine whether a short circuit occurs between the touch electrodes 411 and the touch electrodes 421 ; or, a short circuit occurs between the touch electrodes 431 and the touch electrodes 421 , or between the touch electrodes 411 and 421 And a short circuit occurs between the touch electrodes 431 and the touch electrodes 421 .
- a second enable signal is sent to the second control line 52, the second switch units 56 in the multiple gating modules 51 are turned on, and the short-circuit detection signal transmitted by the second input terminal in2 passes through.
- the second short-circuit signal supply line 55 and the conductive second switch unit 56 are transmitted to the touch electrodes 411 , 431 , 412 , 432 , 413 , 433 , 414 , 434 , 415 , 435 , 416 , and 436 .
- the short circuit detection signal received by the touch electrodes 411 will be transmitted to the touch electrodes 421 , and the touch traces 30 electrically connected to the touch electrodes 421 will short circuit the short circuit.
- the detection signal is output to the third switch unit 57 electrically connected to the touch wire 30.
- the short-circuit detection signal received by the touch electrode 431 will also be transmitted to the touch electrode 421, the touch traces 30 electrically connected to the touch electrodes 421 also output the short circuit detection signal to the third switch unit 57, and feedback is performed through the third switch unit 57 and the third input terminal in3, according to the short circuit feedback
- the signal can also determine whether a short circuit occurs between the touch electrode 411 and the touch electrode 421; or, a short circuit occurs between the touch electrode 431 and the touch electrode 421; A short circuit occurs between the control electrodes 431 and the touch electrodes 421 .
- the above example is described by taking whether the touch electrodes 411 , 421 , and 431 in the first column are short-circuited as an example. This method is also applicable to the touch electrodes in other columns and other rows.
- FIG. 7 is a timing diagram of multiple signals in a first detection circuit and a second detection circuit provided by an embodiment of the present application.
- the signal VCOMSWA transmitted by the second control line 52 is low level
- the signal VCOMSWB transmitted by the third control line 53 is low level
- the first control line 63 is electrically connected to the first switch unit 641 with an arrangement number of one
- the signal TPSWA transmitted by one of the first control lines 631 is high level
- the signal TPSWB transmitted by one of the first control lines 632 in the first control line 63 that is electrically connected to the first switch unit 642 with the arrangement number two is low level
- the second switch unit 56 , the third switch unit 57 and the first switch unit 642 with the arrangement number two are turned off
- the first switch unit 641 with the arrangement number one is turned on
- the short circuit detection signal received by the touch electrodes 411 will be transmitted to the touch electrodes 412 , and the touch traces 30 electrically connected to the touch electrodes 412 will output the short circuit detection signals to the touch traces 30 .
- the first switch unit 641 located in the second touch electrode row 44 and arranged with a serial number of one; if the touch electrode 413 and the touch electrode 412 are short-circuited, the short-circuit detection signal received by the touch electrode 413 will be transmitted to the touch
- the control electrode 412, the touch wire 30 electrically connected to the touch electrode 412 will output the short-circuit detection signal to the touch wire 30 that is electrically connected to the touch wire 30, is located in the second touch electrode row 44, and has an arrangement serial number of one
- the first switch unit 64 since the first switch unit 641 is turned on, outputs the short-circuit detection signal (short-circuit feedback signal) through the first switch unit 641 and the first input terminal in1 corresponding to the second touch electrode row 44, According to the short-circuit feedback
- the short circuit detection signal received by the touch electrodes 431 will be transmitted to the touch electrodes 432 , and the touch traces 30 electrically connected to the touch electrodes 432 will The short-circuit detection signal is output to the first switch unit 64 electrically connected to the touch trace 30, located in the second touch electrode row 44, and arranged with a serial number of one; if the touch electrode 433 and the touch electrode 432 are short-circuited, then The short circuit detection signal received by the touch electrodes 433 will be transmitted to the touch electrodes 432 , and the touch traces 30 electrically connected to the touch electrodes 432 will output the short circuit detection signals to the touch traces 30 that are electrically connected to the touch traces 30 and located in the The second touch electrode row 44 and the first switch unit 64 with the sequence number one are arranged.
- the short-circuit detection signal (short-circuit feedback signal) is output through the first switch unit 64.
- the short-circuit feedback signal can determine whether a short circuit occurs between the touch electrodes 431 and the touch electrodes 432 ; or whether a short circuit occurs between the touch electrodes 433 and the touch electrodes 432 ; or, between the touch electrodes 431 and the touch electrodes 432 and whether a short circuit occurs between the touch electrodes 433 and the touch electrodes 432 .
- a short circuit occurs between the touch electrode 413 and the touch electrode 414; or, whether a short circuit occurs between the touch electrode 415 and the touch electrode 414; or, between the touch electrode 413 and the touch electrode 414 and Whether a short circuit occurs between the touch electrodes 415 and the touch electrodes 414 . And, whether a short circuit occurs between the touch electrode 433 and the touch electrode 434; or, whether a short circuit occurs between the touch electrode 435 and the touch electrode 434; or, between the touch electrode 433 and the touch electrode 434 and the touch Whether a short circuit occurs between the electrodes 434 and the touch electrodes 435 . And, whether a short circuit occurs between the touch electrodes 415 and the touch electrodes 416 . And, whether a short circuit occurs between the touch electrodes 435 and the touch electrodes 436 .
- the signal VCOMSWA transmitted by the second control line 52 is low level
- the signal VCOMSWB transmitted by the third control line 53 is low level
- the first control line 63 The signal TPSWA transmitted by one of the first control lines 631 electrically connected to the first switch unit 641 with the arrangement number one is low level
- the first control line 63 is electrically connected to the first switch unit 642 with the arrangement number two.
- the signal TPSWB transmitted by one of the first control lines 632 is at a high level
- the second switch unit 56 , the third switch unit 57 and the first switch unit 641 with the sequence number one are turned off
- the first switch unit with the sequence number two is turned off.
- the short-circuit detection signal input by the first input terminal in1 corresponding to the first touch electrode row 43 is transmitted to the touch electrodes 421 , 423 , 425 , 441 , 443 , 445 through the first switch unit 642 with the sequence number two. . If the touch electrode 421 and the touch electrode 422 are short-circuited, the short-circuit detection signal received by the touch electrode 421 will be transmitted to the touch electrode 422, and the touch trace 30 electrically connected to the touch electrode 422 will short-circuit the touch electrode 422.
- the detection signal is output to the first switch unit 642 that is electrically connected to the touch trace 30 and located in the second touch electrode row 44 and has an arrangement number of two; if the touch electrode 423 and the touch electrode 422 are short-circuited, the touch The short-circuit detection signal received by the electrode 423 will be transmitted to the touch electrode 422, and the touch trace 30 electrically connected to the touch electrode 422 will output the short-circuit detection signal to the touch trace 30, which is electrically connected to the touch trace 30 and located in the second
- the short circuit detection signal (short circuit feedback signal) is output, and according to the short circuit feedback signal, it can be determined whether a short circuit occurs between the touch electrode 421 and the touch electrode 422; or, whether a short circuit occurs between the touch electrode 423 and the touch electrode 422 ; or, whether a short circuit occurs between the touch electrode 421 and the touch electrode 422 and between the touch electrode 423 and the touch electrode 422 .
- the short circuit detection signal received by the touch electrodes 441 will be transmitted to the touch electrodes 442, and the touch traces 30 electrically connected to the touch electrodes 442 will The short-circuit detection signal is output to the first switch unit 642 that is electrically connected to the touch trace 30 and located in the second touch electrode row 44 and has an arrangement number of two; if the touch electrode 443 and the touch electrode 442 are short-circuited, then The short-circuit detection signal received by the touch electrode 443 will be transmitted to the touch electrode 442 , and the touch trace 30 electrically connected to the touch electrode 442 will output the short-circuit detection signal to the touch trace 30 that is electrically connected to the touch trace 30 and located in the In the second touch electrode row 44 and the first switch unit 642 with the arrangement number two, since the first switch unit 642 is turned on, the short-circuit detection signal (short-circuit feedback signal) is output through the first switch unit 642, and according to the The short circuit
- a short circuit occurs between the touch electrode 423 and the touch electrode 424; or whether a short circuit occurs between the touch electrode 425 and the touch electrode 424; or, between the touch electrode 423 and the touch electrode 424, and Whether a short circuit occurs between the touch electrodes 425 and the touch electrodes 424 . And, whether a short circuit occurs between the touch electrode 443 and the touch electrode 444; or, whether a short circuit occurs between the touch electrode 445 and the touch electrode 444; or, between the touch electrode 443 and the touch electrode 444 and the touch Whether a short circuit occurs between the electrodes 444 and the touch electrodes 445 . And, whether a short circuit occurs between the touch electrodes 425 and the touch electrodes 426 . And, whether a short circuit occurs between the touch electrodes 445 and the touch electrodes 446 .
- the signal VCOMSWA transmitted by the second control line 52 is at a high level
- the signal VCOMSWB transmitted by the third control line 53 is at a low level
- the first control line 63 and the The signal TPSWA transmitted by one of the first control lines 631 electrically connected to the first switch unit 641 with the arrangement number one is low level
- one of the first control lines 63 is electrically connected to the first switch unit 642 with the arrangement number two.
- a signal TPSWB transmitted by a first control line 632 is at a high level, the third switch unit 57 and the first switch unit 641 with the arrangement number one are turned off, the second switch unit 56 and the first switch unit 642 with the arrangement number two are turned off
- the short-circuit detection signal transmitted by the second short-circuit signal supply line 55 is transmitted to the touch electrodes 411 , 431 , 412 , 432 , 413 , 433 , 414 , 434 , 415 , 435 , 416 through the turned on second switch unit 56 , 436; if there is a short circuit between the touch electrode 411 and the touch electrode 421, the short circuit detection signal received by the touch electrode 411 will be transmitted to the touch electrode 421, and the touch trace 30 electrically connected to the touch electrode 421 will be The short circuit detection signal is output to the first switch unit 642 electrically connected to the touch trace 30 with the arrangement number 2; if the touch electrode 431 and the touch electrode 421 are short circuited, the short
- the arrangement number is 2. Based on this, the first switch unit 642 will feed back a signal, that is, a short-circuit feedback signal, and according to the short-circuit feedback signal, it can be determined whether a short circuit occurs between the touch electrodes 411 and the touch electrodes 421; or, the touch electrodes 431 and the touch electrodes 421 A short circuit occurs between the touch electrodes 411 and the touch electrodes 421 , and a short circuit occurs between the touch electrodes 431 and the touch electrodes 421 .
- the above example is described by taking whether the touch electrodes 40 in the first row are short-circuited as an example. This method is also applicable to the touch electrodes in other rows, and will not be repeated here.
- FIG. 7 is only a sequence diagram provided by an embodiment of the present application, but the detection sequence diagram is not limited to that shown in FIG. 7 .
- FIG. 8 is provided by an embodiment of the present application.
- Another timing diagram of multiple signals in the first detection circuit and the second detection circuit is different from FIG. 7 in that the signal VCOMSWB transmitted by the third control line 53 in FIG. 8 is in the T3 period, that is, in the above embodiment.
- the third switch unit 57 is also turned on. In this way, it can also be determined whether the touch electrode 411 and the touch electrode 421 occur through the feedback signal of the third switch unit 57. short circuit; or a short circuit occurs between the touch electrodes 431 and the touch electrodes 421 , or a short circuit occurs between the touch electrodes 411 and the touch electrodes 421 and between the touch electrodes 431 and the touch electrodes 421 .
- the first switch unit 64, the second switch unit 56 and the third switch unit 57 in the above embodiment may be, for example, thin film transistors, field effect transistors (Metal-Oxide-Semiconductor Field-Effect Transistor, MOS) transistors. and other devices with switching functions.
- MOS Metal-Oxide-Semiconductor Field-Effect Transistor
- the short circuit detection of the touch electrodes is performed first. If there is no short circuit between adjacent touch electrodes If there is a short circuit, the driver chip can be bound. If there is a short circuit between adjacent touch electrodes, the driver chip will not be bound. In this way, it can prevent the detection of poor touch electrodes after binding the driver chip, which may cause materials such as driver chips. Waste is generated, which in turn can reduce the production cost of the display panel.
- short-circuit detection between adjacent touch electrodes may also be performed after the driving chip is bound.
- FIG. 9 is a schematic structural diagram of another display panel provided by an embodiment of the present application.
- the display panel 100 further includes a driver chip 10 , through which the adjacent contacts of the above-mentioned multiple embodiments are completed.
- the driving chip 10 is configured to provide a short-circuit detection signal to the touch electrodes 40 in the first touch electrode row 41 through the first detection circuit 50 in the first detection stage, and generate the short-circuit detection signal according to the second detection circuit 60 .
- the short-circuit feedback signal of determines whether the touch electrodes 40 located in the same column and adjacent to each other are short-circuited.
- the driving chip 10 is further configured to provide a short circuit detection signal to the touch electrodes 40 in the first touch electrode row 41 through the first detection circuit 50 in the first detection stage, and according to the short circuit feedback signal generated by the first detection circuit 50 It is determined whether there is a short circuit between adjacent touch electrodes 40 in the same column.
- the driving chip 10 is further configured to provide a short-circuit detection signal to the touch electrodes 40 located in the first touch electrode row 43 through the multiplexing module 61 corresponding to the first touch electrode row 43 in the second detection stage, and according to The short-circuit feedback signal generated by the multiplexing module 61 corresponding to the second touch electrode row 44 determines whether the touch electrodes 40 in the same row are short-circuited.
- the driving chip 10 is further configured to send a first enable signal to the i-th first control line 63 in the i-th detection sub-stage, so as to pass the first switch unit 64 with the sequence number i to the first touch electrode row
- the touch electrodes 40 of 43 provide a short-circuit detection signal, and the distance between the touch electrodes 40 in the n*i-th row is determined according to the short-circuit feedback signal generated by the first switch unit 64 with the arrangement number i corresponding to the second touch electrode row 44 Whether it is a short circuit; wherein, n is 1, 2, ..., Z/M, and n is a positive integer, and Z is the total number of rows of touch electrodes.
- the driving chip 10 is further configured to provide a short-circuit detection signal to the first touch electrodes 40 through the first detection circuit 50 in the first detection stage, and according to the short-circuit feedback generated by the electrical connection of the second touch electrodes 40 to the first switch unit 64 The signal determines whether there is a short circuit between adjacent touch electrodes 40 located in the same row; wherein the first touch electrodes 40 and the second touch electrodes 40 are located in the same first touch area group 20 and in the same touch electrode row .
- the driving chip 10 is further configured to provide a short-circuit detection signal to the first touch electrodes 40 through the gating module 51 in the first detection stage, and according to the signal generated by the multiplexing module 61 electrically connected to the first touch electrodes 40
- the short-circuit feedback signal determines whether there is a short circuit between adjacent touch electrodes 40 located in the same column; the driving chip 10 is further configured to provide a short-circuit detection signal to the second input terminal in2 in the first detection stage, so as to enable the short-circuit detection
- the signal is transmitted to the first touch electrodes 40 through the gating module 51 , and it is determined whether there is a short circuit between adjacent touch electrodes 40 located in the same column according to the short circuit feedback signal generated by the third input terminal in3 .
- the driving chip 10 is further configured to send a second enable signal to the second control line 52 in the first detection stage, so as to turn on the second switch unit 56, and to sequentially pass the short-circuit detection signal through the second short-circuit signal supply line 55 and the second switch unit 56 are transmitted to the first touch electrodes 40 , and the touch electrodes 40 located in the same column and adjacent to each other are determined according to the short-circuit feedback signal generated by the multiplexing module 61 electrically connected to the first touch electrodes 40 .
- the driver chip 10 is also configured to send a third enable signal to the third control line 53 in the first detection stage, so as to make the third switch unit 57 conduct, and provide the line 54 according to the first short circuit signal
- the generated short-circuit feedback signal determines whether the touch electrodes 40 located in the same column and adjacent to each other are short-circuited.
- the display panel in the above embodiment may be a liquid crystal display panel or an organic light emitting display panel.
- the structures in the display panel are multiplexed as touch electrodes in this embodiment.
- the display panel is a liquid crystal display panel
- the common electrodes of the liquid crystal display panel are multiplexed as touch electrodes
- the cathodes of the organic light emitting display panel are multiplexed as touch electrodes.
- the display panel further includes a screen dot test stage; the detection method further includes: in the dot screen test stage, the dot screen test signal is provided to the plurality of touch electrodes through the first detection circuit 50 or the second detection circuit 60 , to determine whether the display panel displays abnormally.
- the touch screen test phase may be located before the touch short circuit detection phase, or may be located after the touch short circuit detection phase.
- the driver chip 10 is configured to provide a dot screen test signal to the plurality of touch electrodes 40 through the first detection circuit 50 or the second detection circuit 60 in the dot screen test stage, so as to determine the display Whether the panel displays abnormally.
- the driving chip 10 is configured to provide a common signal to a plurality of touch electrodes 40 through the first detection circuit 50 and the second detection circuit 60 respectively in the display sub-stage, so as to detect the internal signals of the display panel.
- the sub-pixels are displayed and driven;
- the driving chip 10 is configured to provide touch scanning signals to the touch electrodes 40 through the second detection circuit 60 in the touch sub-stage, and according to the feedback from the second detection circuit 60
- the touch detection signal determines the touch position. Before binding the driver chip, it is generally necessary to perform a spot test on the display panel to determine whether the display panel is working normally.
- the first detection circuit or the second detection circuit can be used to provide corresponding dot screen test signals to the touch electrodes to determine whether the display panel is normal.
- the signals transmitted by the second control line 52 and the third control line 53 are enable signals, so that the second switch unit 56 and the third switch unit 57 are turned on.
- the dot screen test signal transmitted by the first short-circuit signal supply line 54 and the second short-circuit signal supply line 55 is transmitted to the plurality of touch electrodes 40 through the conductive second switch unit 56 and the third switch unit 57 to determine whether the display panel is Display Error.
- the signal transmitted by the first control line 63 is an enable signal, so that the first switch unit 64 is turned on.
- the dot screen test signal transmitted by the first input terminal in1 is transmitted to the plurality of touch electrodes 40 through the turned-on first switch unit 64 to determine whether the display panel is abnormally displayed.
- the first detection circuit and the second detection circuit can not only detect whether the adjacent touch electrodes are short-circuited, but also realize the point screen test of the display panel, without the need to set up a corresponding circuit separately, simplifying the display
- the structure of the panel reduces the manufacturing process of the display panel, improves the manufacturing efficiency of the display panel, and reduces the manufacturing cost of the display panel.
- the display panel further includes a display stage
- the display stage includes a display sub-stage and a touch-control sub-stage; the detection method further includes: in the display sub-stage, the first detection circuit 50 and the second detection circuit 60 respectively provide a common signal to the plurality of touch electrodes 40 to monitor the display panel.
- the sub-pixels inside perform display driving; in the touch sub-stage, the touch scanning signal is provided to the touch electrodes 40 through the second detection circuit 60 in a time-sharing manner, and the touch position is determined according to the touch detection signal fed back by the second detection circuit 60 .
- the driver chip can be bound to the display panel, so as to control the display panel through the driver chip to achieve normal display and touch, that is, the driver chip , which is arranged to provide a common signal to a plurality of touch electrodes through the first detection circuit and the second detection circuit respectively in the display sub-stage, so as to display and drive the sub-pixels in the display panel; the driving chip is arranged to be in the touch sub-phase.
- the touch scanning signal is provided to the touch electrodes in a time-division through the second detection circuit, and the touch position is determined according to the touch detection signal fed back by the second detection circuit.
- the driver chip 10 provides an enable signal to the second control line 52 and the third control line 53 and an enable signal to the first control line 63 to enable the second switch
- the unit 56 , the third switch unit 57 and the first switch unit 64 are turned on.
- a common signal is provided to the first input terminal in1, the first short-circuit signal supply line 54 and the second short-circuit signal supply line 55 through the driving chip 10, and the common signal passes through the second switch unit 56, the third switch unit 57 and the second switch unit 57 that are turned on.
- a switch unit 64 is transmitted to a plurality of touch electrodes 40. Since each touch electrode 40 can receive a common signal provided by the first detection circuit 50 and the second detection circuit 60, it can reduce the voltage drop caused by different touch electrodes. 40 The received public signals are different, which leads to the problem of uneven display.
- the touch scan signal is only provided to the touch electrodes through the second detection circuit in a time division, and the touch position is determined according to the touch detection signal fed back by the second detection circuit.
- the unit 642 is turned on to transmit the touch scan signal transmitted by the
- the display panel and the detection method provided by the embodiments of the present application through the first detection circuit and the second detection circuit, not only can detect whether there is a short circuit between adjacent touch electrodes, but also can complete the point detection of the display panel. Screen test detection and subsequent application of the display panel to the actual product completes the normal display and touch control of the display panel.
- an embodiment of the present application also provides a driver chip, the driver chip can execute the detection method provided by any embodiment of the present application, and has functional modules and effects corresponding to executing the detection method.
- an embodiment of the present application further provides a display device, and the display device includes any one of the display panels provided in the foregoing embodiments.
- the display device 101 includes a display panel 100 . Therefore, the display device also has the effects of the display panel in the above-mentioned embodiments, and the similarities can be understood with reference to the explanation of the display panel above, which will not be repeated below.
- the display device 101 provided in this embodiment of the present application may be a mobile phone as shown in FIG. 10 , or may be any electronic product with a display function, including but not limited to the following categories: televisions, notebook computers, desktop monitors, tablet computers, Digital cameras, smart bracelets, smart glasses, vehicle-mounted displays, industrial control equipment, medical display screens, touch interactive terminals, etc., are not particularly limited in this embodiment of the present application.
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Abstract
本申请提供了一种检测方法、显示面板、驱动芯片及显示装置,显示面板包括至少一个第一触控区组和多条触控走线;第一触控区组包括两行N列的触控电极;每条触控走线与每个触控电极一一对应电连接;其中,N≥1,且N为正整数;还包括第一检测电路和第二检测电路;每个触控电极通过触控走线分别与第一检测电路和第二检测电路电连接;两行N列的触控电极包括相邻的第一触控电极行和第二触控电极行;显示面板包括触控短路检测阶段;触控短路检测阶段包括第一检测阶段;检测方法包括:在第一检测阶段,通过第一检测电路向第一触控电极行中的触控电极提供短路检测信号;根据第二检测电路产生的短路反馈信号确定位于同一列且相邻的触控电极之间是否短路。
Description
本申请要求在2021年03月22日提交中国专利局、申请号为202110304023.1的中国专利申请的优先权,该申请的全部内容通过引用结合在本申请中。
本申请涉及显示技术,例如涉及一种检测方法、显示面板、驱动芯片及显示装置。
具有触控功能的显示面板被广泛应用于手机和可穿戴设备等显示设备中,以使显示设备能够通过简单便利的方式实现人机交互功能。具有触控功能的显示面板中通常设置有多个触控电极,并通过检测多个触控电极上的信号变化量实现相应的触摸操作。
然而,在制备显示面板中的触控电极时,难免会出现触控电极之间的金属残留,进而影响后续的触控检测。因此,如何实现对触控电极的准确测试,成为亟待解决的问题。
发明内容
本申请提供一种检测方法、显示面板、驱动芯片及显示装置,以对显示面板中的触控电极进行检测。
提供了一种检测方法,显示面板包括至少一个第一触控区组和多条触控走线;所述第一触控区组包括两行N列的触控电极;每条触控走线与每个触控电极一一对应电连接;其中,N≥1,且N为正整数;
所述显示面板还包括第一检测电路和第二检测电路;所述每个触控电极通过所述触控走线分别与所述第一检测电路和所述第二检测电路电连接;
两行N列的触控电极包括第一触控电极行和第二触控电极行;所述第一触控电极行和所述第二触控电极行相邻;
所述显示面板包括触控短路检测阶段;所述触控短路检测阶段包括第一检测阶段;
所述检测方法包括:
在所述第一检测阶段,通过所述第一检测电路向所述第一触控电极行中的 触控电极提供短路检测信号;
根据所述第二检测电路产生的短路反馈信号确定位于同一列且相邻的触控电极之间是否短路。
还提供了一种显示面板,该显示面板包括:驱动芯片、至少一个第一触控区组和多条触控走线;所述第一触控区组包括两行N列的触控电极;每条触控走线与每个触控电极一一对应电连接;其中,N≥1,且N为正整数;
所述显示面板还包括第一检测电路和第二检测电路;所述每个触控电极通过所述触控走线分别与所述第一检测电路和所述第二检测电路电连接;
两行N列的触控电极包括第一触控电极行和第二触控电极行;所述第一触控电极行和所述第二触控电极行相邻;
所述显示面板包括触控短路检测阶段;所述触控短路检测阶段包括第一检测阶段;
所述驱动芯片,设置为在所述第一检测阶段,通过所述第一检测电路向所述第一触控电极行中的触控电极提供短路检测信号,并根据所述第二检测电路产生的短路反馈信号确定位于同一列且相邻的触控电极之间是否短路。
还提供了一种驱动芯片,该驱动芯片用于执行上述的检测方法。
还提供了一种显示装置,该显示装置包括上述的显示面板。
图1是本申请实施例提供的一种显示面板的结构示意图;
图2是本申请实施例提供的一种检测方法的流程图;
图3是本申请实施例提供的又一种显示面板的结构示意图;
图4是本申请实施例提供的又一种显示面板的结构示意图;
图5是本申请实施例提供的又一种显示面板的结构示意图;
图6是本申请实施例提供的又一种显示面板的结构示意图;
图7是本申请实施例提供的一种第一检测电路和第二检测电路中多个信号的时序图;
图8是本申请实施例提供的又一种第一检测电路和第二检测电路中多个信 号的时序图;
图9是本申请实施例提供的又一种显示面板的结构示意图;
图10是本申请实施例提供的一种显示装置的结构示意图。
下面结合附图和实施例对本申请进行说明。此处所描述的实施例仅仅用于解释本申请,而非对本申请的限定。为了便于描述,附图中仅示出了与本申请相关的部分而非全部结构。
为解决上述问题,本申请实施例提供了一种检测方法。显示面板包括至少一个第一触控区组和多条触控走线;第一触控区组包括两行N列的触控电极;每条触控走线与每个触控电极一一对应电连接;其中,N≥1,且N为正整数;显示面板还包括第一检测电路和第二检测电路;每个触控电极通过触控走线分别与第一检测电路和第二检测电路电连接;两行N列的触控电极包括第一触控电极行和第二触控电极行;第一触控电极行和第二触控电极行相邻;显示面板包括触控短路检测阶段;触控短路检测阶段包括第一检测阶段;检测方法包括:在第一检测阶段,通过第一检测电路向第一触控电极行中的触控电极提供短路检测信号,并根据第二检测电路产生的短路反馈信号确定位于同一列且相邻的触控电极之间是否短路。
采用上述技术方案,通过第一检测电路向第一触控电极行中的触控电极提供短路检测信号,并根据与该触控电极相邻且位于同一列的触控电极向第二检测电路反馈的信号,确定位于同一列且相邻的触控电极之间是否短路,解决在制备显示面板中的触控电极时,出现触控电极之间的金属残留,影响后续的触控检测的问题,实现对触控电极的准确测试。
以上是本申请的核心思想,下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行描述。
图1是本申请实施例提供的一种显示面板的结构示意图,如图1所示,本申请实施例提供的显示面板100包括至少一个第一触控区组20和多条触控走线30;第一触控区组20包括两行N列的触控电极40;N≥1,且N为正整数;每个两行N列的触控电极40包括第一触控电极行41和第二触控电极行42;第一触控电极行41和第二触控电极行42相邻;每条触控走线30与每个触控电极40一一对应电连接;其中,图1以显示面板100包括两个第一触控区组20,且每一第一触控区组20包括两行六列的触控电极40为例进行说明,但该示例不构 成对本申请的限定,即显示面板100可以包括一个第一触控区组20、两个第一触控区组20或者更多个第一触控区组20,且每一第一触控区组20可以包括两行一列的触控电极40、两行两列的触控电极40或者两行更多列的触控电极40。下述实施例同样以显示面板100包括两个第一触控区组20,每一个第一触控区组20包括两行六列的触控电极40为例进行说明,下述实施例不再赘述。
继续参见图1,显示面板100还包括第一检测电路50和第二检测电路60;每个触控电极40通过触控走线30分别与第一检测电路50和第二检测电路60电连接,即连接触控电极40的触控走线30的一端与第一检测电路50电连接,另一端与第二检测电路60电连接。显示面板100包括触控短路检测阶段;触控短路检测阶段包括第一检测阶段。
图2是本申请实施例提供的一种检测方法的流程图,如图2所示,本申请实施例提供的检测方法包括以下步骤。
S110、在第一检测阶段,通过第一检测电路50向第一触控电极行41中的触控电极40提供短路检测信号。
示例性的,继续参见图1,显示面板100包括阵列排布的4行触控电极40,第一行的触控电极(411、412、413、414、415、416)和第二行的触控电极(421、422、423、424、425、426)构成一个第一触控区组20,第三行的触控电极(431、432、433、434、435、436)和第四行的触控电极(441、442、443、444、445、446)构成一个第一触控区组20,其中,第一行的触控电极(411、412、413、414、415、416)以及第三行的触控电极(431、432、433、434、435、436)均为第一触控电极行41;第二行的触控电极(421、422、423、424、425、426)以及第四行的触控电极(441、442、443、444、445、446)均为第二触控电极行42。在第一检测阶段,通过第一检测电路50向第一行的触控电极(411、412、413、414、415、416)以及第三行的触控电极(431、432、433、434、435、436)提供短路检测信号。
S120、根据第二检测电路60产生的短路反馈信号确定位于同一列且相邻的触控电极40之间是否短路。
请继续参见图1,若触控电极411和触控电极421发生短路,触控电极411接收到的短路检测信号会传输至触控电极421,与触控电极421电连接的触控走线30会将该短路检测信号输出至第二检测电路60;若触控电极431和触控电极421发生短路,触控电极431接收到的短路检测信号也会传输至触控电极421,与触控电极421电连接的触控走线30也会将该短路检测信号输出至第二检测电路60,第二检测电路60基于此会反馈一个信号,即短路反馈信号,根据该短路反馈信号可以确定触控电极411和触控电极421之间发生短路;或者,触控电 极431和触控电极421之间发生短路,或者,触控电极411和触控电极421之间以及触控电极431和触控电极421之间均发生短路。
若触控电极441和触控电极431发生短路,触控电极431接收到的短路检测信号会传输至触控电极441,与触控电极441电连接的触控走线30会将该短路检测信号输出至第二检测电路60,第二检测电路60基于此会反馈一个短路反馈信号,根据该短路反馈信号可以确定触控电极441和触控电极431之间发生短路。
上述示例以第一列的触控电极40之间是否短路为例进行说明,该方法同样适用于其他列的触控电极。
如此,当向第一触控电极行41中的触控电极40提供短路检测信号时,根据与该触控电极40相邻且位于同一列的触控电极40向第二检测电路60反馈的信号,能够检测出同一列且相邻的触控电极40之间是否短路。
可选的,图3是本申请实施例提供的又一种显示面板的结构示意图,如图3所示,第二检测电路60包括多个多路选择模块61;多路选择模块61包括第一输入端in1和M个第一输出端out1,M≥2,且M为正整数;多路选择模块61的M个第一输出端out1通过M个触控走线30一一对应的与位于同一列且相邻的M个触控电极40电连接。示例性的,继续参见图3,第二检测电路60包括六个多路选择模块组62,六个多路选择模块组62与六个触控电极列一一对应,即一个多路选择模块组62对应一个触控电极列。每个多路选择模块组62包括两个多路选择模块61,两个多路选择模块61分别为第一多路选择模块611和第二多路选择模块612。第一列触控电极列对应的多路选择模块组62中的第一多路选择模块611的两个第一输出端out1通过触控走线30分别与触控电极411和触控电极421电连接;第一个多路选择模块组62中的第二多路选择模块612的两个第一输出端out1通过触控走线30分别与触控电极431和触控电极441电连接;其他触控电极列对应的多路选择模块组62以同样的连接方式与该触控电极列中的触控电极40电连接。由于图3是以触控电极阵列包括4行6列的触控电极40为例进行的说明,所以每个多路选择模块组62包括两个多路选择模块61,当触控电极阵列包括L行6列的触控电极40时,每个多路选择模块组62包括L/2个多路选择模块61,即依次为第一多路选择模块611、第二多路选择模块612、….、第L/2多路选择模块。此外,图3是以多路选择模块61包括第一输入端in1和两个第一输出端out1,且两个第一输出端out1分别与位于同一列且相邻的两个触控电极40电连接;如果多路选择模块61包括第一输入端in1和三、四或N个第一输出端out1时,相应的,三个第一输出端out1分别电连接位于同一列且相邻的三、四或N个触控电极40。
本申请实施例提供的检测方法还包括:在第一检测阶段,通过第一检测电路50向第一触控电极行41中的触控电极40提供短路检测信号,并根据第一检测电路50产生的短路反馈信号确定位于同一列且相邻的触控电极40之间是否短路。
示例性的,请继续参见图3,若触控电极411和触控电极421发生短路,触控电极411接收到的短路检测信号会传输至触控电极421,与触控电极421电连接的触控走线30会将该短路检测信号输出至与该触控走线30电连接的多路选择模块61;若触控电极431和触控电极421发生短路,触控电极431接收到的短路检测信号也会传输至触控电极421,与触控电极421电连接的触控走线30也会将该短路检测信号输出至与该触控走线30电连接的多路选择模块61,多路选择模块61通过第一输入端in1将此信号进行反馈,即短路反馈信号,根据反馈的短路反馈信号可以确定触控电极411和触控电极421之间发生短路;或者,触控电极431和触控电极421之间发生短路,或者,触控电极411和触控电极421之间以及触控电极431和触控电极421之间均发生短路。除此之外,还可以通过与触控电极421电连接的触控走线30将该短路检测信号输出至与该触控走线30电连接的第一检测电路50,第一检测电路50基于此会反馈一个信号,即短路反馈信号,根据该短路反馈信号可以确定触控电极411和触控电极421之间发生短路;或者,触控电极431和触控电极421之间发生短路,或者,触控电极411和触控电极421之间以及触控电极431和触控电极421之间均发生短路。也就是说,本实施例中,可以通过第一检测电路50向第一触控电极行41中的触控电极40提供短路检测信号,然后通过第二检测电路60反馈的短路反馈信号确定位于同一列且相邻的触控电极40之间发生短路;还可以通过第一检测电路50向第一触控电极行41中的触控电极40提供短路检测信号,然后通过第一检测电路50反馈的短路反馈信号确定位于同一列且相邻的触控电极40之间发生短路。如此,使得位于同一列且相邻的触控电极40之间的短路检测变得灵活,并不局限于通过第二检测电路60检测。
上述示例仅以触控电极411和触控电极421之间发生短路;或者,触控电极431和触控电极421之间发生短路,或者,触控电极411和触控电极421之间以及触控电极431和触控电极421之间均发生短路进行说明,其他位于同一列、且相邻的触控电极40同样适用于该方法。
上述多个示例中均以第一行的触控电极(411、412、413、414、415、416)以及第三行的触控电极(431、432、433、434、435、436)均为第一触控电极行41;第二行的触控电极(421、422、423、424、425、426)以及第四行的触控电极(441、442、443、444、445、446)均为第二触控电极行42,即第一触控电极行41位于奇数行,第二触控电极行42位于偶数行。在其他可选实施例 中,还可以是第一触控电极行41位于偶数行,第二触控电极行42位于奇数行。
可选的,继续参见图1和图3,多个触控电极40阵列排布,第一检测电路50和第二检测电路60分别位于触控电极阵列相对的两侧。这样设置的好处在于,有利于布线,简化显示面板的结构,提高显示面板的制备效率。
在上述方案的基础上,可选的,继续参见图3,该显示面板100还包括至少一个第二触控区组21;第二触控区组21包括两列L行的触控电极40,L≥2,且L为正整数;其中,图3是以显示面板100包括三个第二触控区组21,每个第二触控区组21包括两列四行的触控电极40为例进行的说明。但该示例不构成对本申请的限定,即显示面板100可以包括一个第二触控区组21、两个第二触控区组21或者更多个第二触控区组21,且每一个第二触控区组21可以包括两行两列的触控电极40或者两行更多列的触控电极40。
继续参见图3,两列L行的触控电极40包括第一触控电极列43和第二触控电极列44;第一触控电极列43和第二触控电极列44相邻;触控短路检测阶段还包括第二检测阶段;其中,第二检测阶段可以位于第一检测阶段之前,也可以位于第一检测阶段之后。
该检测方法还包括:在第二检测阶段,通过与第一触控电极列43对应的多路选择模块61向位于第一触控电极列43的触控电极40提供短路检测信号,并根据与第二触控电极列44对应的多路选择模块61产生的短路反馈信号确定同一行的触控电极40之间是否短路。
示例性的,继续参见图3,由上述实施例可知,六个多路选择模块组62与六个触控电极列一一对应,即一个多路选择模块组62对应一个触控电极列。每个多路选择模块组62包括两个多路选择模块61,两个多路选择模块61分别为第一多路选择模块611和第二多路选择模块612。
第二检测阶段例如可以包括第一检测子阶段和第二检测子阶段。在第一检测子阶段,通过与第一触控电极列43对应的多路选择模块组62中的多路选择模块61,向位于第一触控电极列43,且位于第一触控电极行41的触控电极40提供短路检测信号,例如,第一多路选择模块611向触控电极411提供短路检测信号以及第二多路选择模块612向触控电极431提供短路检测信号。若触控电极411和触控电极412短路,则触控电极411接收到的短路检测信号会传输至触控电极412,与触控电极412电连接的触控走线30会将该短路检测信号输出至与第二触控电极列44对应的第一多路选择模块611;若触控电极413和触控电极412短路,则触控电极413接收到的短路检测信号也会传输至触控电极412,与触控电极412电连接的触控走线30会将该短路检测信号输出至与第二触控电极列44对应的第一多路选择模块611,该第一多路选择模块611基于此 会反馈一个信号,即短路反馈信号,根据该短路反馈信号可以确定触控电极411和触控电极412之间是否发生短路;或者,触控电极413和触控电极412之间是否发生短路;或者,触控电极411和触控电极412之间以及触控电极413和触控电极412之间是否发生短路。同样,若触控电极431和触控电极432短路,则触控电极431接收到的短路检测信号会传输至触控电极432,与触控电极432电连接的触控走线30会将该短路检测信号输出至与第二触控电极列44对应的第二多路选择模块612;若触控电极433和触控电极432短路,则触控电极433接收到的短路检测信号会传输至触控电极432,与触控电极432电连接的触控走线30会将该短路检测信号输出至与第二触控电极列44对应的第二多路选择模块612,该第二多路选择模块612基于此会反馈一个信号,即短路反馈信号,根据该短路反馈信号可以确定触控电极431和触控电极432之间是否发生短路;或者,触控电极433和触控电极432之间是否发生短路;或者,触控电极431和触控电极432之间以及触控电极433和触控电极432之间是否发生短路。也就是说,向位于第一触控电极列43且位于第一触控电极行41的触控电极40提供短路检测信号,如果与位于第二触控电极列44且位于第一触控电极行41的触控电极40对应的多路选择模块61接收到信号,则可以确定位于第二触控电极列44且位于第一触控电极行41的触控电极40与该触控电极40相邻的触控电极40发生了短路。
在第二检测子阶段,通过与第一触控电极列43对应的多路选择模块组62中的多路选择模块61,向位于第一触控电极列43、且位于第二触控电极行42的触控电极40提供短路检测信号,例如,第一多路选择模块611向触控电极421提供短路检测信号以及第二多路选择模块612向触控电极441提供短路检测信号。若触控电极421和触控电极422短路,则触控电极421接收到的短路检测信号会传输至触控电极422,与触控电极422电连接的触控走线30会将该短路检测信号输出至与第二触控电极列44对应的第一多路选择模块611,若触控电极423和触控电极422短路,则触控电极423接收到的短路检测信号会传输至触控电极422,与触控电极422电连接的触控走线30会将该短路检测信号输出至与第二触控电极列44对应的第一多路选择模块611,该第一多路选择模块611基于此会反馈一个信号,即短路反馈信号,根据该短路反馈信号可以确定触控电极421和触控电极422之间是否发生短路;或者,触控电极423和触控电极422之间是否发生短路;触控电极421和触控电极422之间以及触控电极423和触控电极422之间是否发生短路。同样,若触控电极441和触控电极442短路,则触控电极441接收到的短路检测信号会传输至触控电极442,与触控电极442电连接的触控走线30会将该短路检测信号输出至与第二触控电极列44对应的第二多路选择模块612,若触控电极443和触控电极442短路,则触控电极443 接收到的短路检测信号会传输至触控电极442,与触控电极442电连接的触控走线30会将该短路检测信号输出至与第二触控电极列44对应的第二多路选择模块612,该第二多路选择模块612基于此会反馈一个信号,即短路反馈信号,根据该短路反馈信号可以确定触控电极441和触控电极442之间是否发生短路;或者,触控电极443和触控电极442之间是否发生短路;或者,触控电极441和触控电极442之间以及触控电极443和触控电极442之间是否发生短路。也就是说,向位于第一触控电极列43且位于第二触控电极行42的触控电极40提供短路检测信号,如果与位于第二触控电极列44且位于第二触控电极行42的触控电极40对应的多路选择模块61接收到信号,则可以确定位于第二触控电极列44且位于第二触控电极行42的触控电极40与其相邻的触控电极40发生了短路。
上述示例仅以其中一个第二触控区组21中,位于同一行、且相邻的触控电极40之间是否短路为例进行说明,该检测方法还适用于其它第二触控区组21中,位于同一行、且相邻的触控电极40之间是否短路的检测。
上述多个示例中均以第一列的触控电极(411、421、431、441)、第三列的触控电极(413、423、433、443)以及第五列的触控电极(415、425、435、445)均为第一触控电极列43;第二列的触控电极(412、422、432、442)、第四列的触控电极(414、424、434、444)以及第六列的触控电极(416、426、436、446)均为第二触控电极列44,即第一触控电极列43位于奇数列,第二触控电极列44位于偶数列。在其他可选实施例中,还可以是第一触控电极列43位于偶数列,第二触控电极列44位于奇数列。
在上述方案的基础上,可选的,图4是本申请实施例提供的又一种显示面板的结构示意图,如图4所示,第二检测电路60包括M条第一控制线63;多路选择模块61包括M个第一开关单元64;不同多路选择模块61中的相同排列序号的第一开关单元64的控制端电连接同一条第一控制线63;同一个多路选择模块61中的M个第一开关单元64的第一端电连接,且与第一输入端in1电连接;同一个多路选择模块61中的M个第一开关单元64的第二端一一对应与位于同一列且相邻的M个触控电极40电连接。
第二检测阶段包括第一检测子阶段,…,第M检测子阶段;其中,1≤i≤M,且i为正整数;
在第二检测阶段,通过多路选择模块61向位于第一触控电极列43的触控电极40提供短路检测信号,并根据第二触控电极列44对应的多路选择模块61产生的短路反馈信号确定同一行的触控电极40之间是否短路,包括:
在第i检测子阶段,向第i条第一控制线63发送第一使能信号,以通过排 列序号为i的第一开关单元64向位于第一触控电极列43的触控电极40提供短路检测信号,并根据第二触控电极列44对应的排列序号为i的第一开关单元64产生的短路反馈信号确定第n*i行的触控电极40之间是否短路;其中,n为1、2、…,Z/M,且n为正整数,Z为触控电极总行数;
在第一检测阶段,通过第一检测电路50向第一触控电极行41中的触控电极40提供短路检测信号,并根据第二检测电路60产生的短路反馈信号确定位于同一列且相邻的触控电极40之间是否短路,包括:
在第一检测阶段,通过第一检测电路50向第一触控电极提供短路检测信号,并根据第二触控电极电连接第一开关单元产生的短路反馈信号确定位于同一列且相邻的触控电极40之间是否短路;其中,第一触控电极和第二触控电极位于同一个第一触控区组20且位于同一触控电极列。
示例性的,继续参见图4,第二检测电路60包括两条第一控制线63;多路选择模块61包括两个第一开关单元64;不同多路选择模块61中的相同排列序号为一的第一开关单元64的控制端电连接同一条第一控制线63;不同多路选择模块61中的相同排列序号为二的第一开关单元64的控制端电连接同一条第一控制线63。第二检测阶段包括第一检测子阶段和第二检测子阶段。在第一检测子阶段,向第一条第一控制线63发送第一使能信号,排列序号为一的第一开关单元64导通,与第一触控电极列43对应的第一输入端in1输入的短路检测信号通过排列序号为一的第一开关单元64向位于第一触控电极列43且位于第一触控电极行41的触控电极411、413、415提供短路检测信号以及触控电极431、433、435提供短路检测信号。如果触控电极411和触控电极412之间短路,则触控电极411接收到的短路检测信号会传输至触控电极412,与触控电极412电连接的触控走线30会将该短路检测信号输出至与该触控走线30电连接、位于第二触控电极列44、且排列序号为一的第一开关单元64;若触控电极413和触控电极412短路,则触控电极413接收到的短路检测信号会传输至触控电极412,与触控电极412电连接的触控走线30会将该短路检测信号输出至与该触控走线30电连接、位于第二触控电极列44、且排列序号为一的第一开关单元64,由于该第一开关单元64导通,通过第一开关单元64将该短路检测信号(短路反馈信号)输出,根据该短路反馈信号可以确定触控电极411和触控电极412之间是否发生短路;或者,触控电极413和触控电极412之间是否发生短路;或者,触控电极411和触控电极412之间以及触控电极413和触控电极412之间是否发生短路。同样,如果触控电极431和触控电极432之间短路,则触控电极431接收到的短路检测信号会传输至触控电极432,与触控电极432电连接的触控走线30会将该短路检测信号输出至与该触控走线30电连接、位于第二触控电极列44、且排列序号为一的第一开关单元64;若触控电极433和触控电极432短 路,则触控电极433接收到的短路检测信号会传输至触控电极432,与触控电极432电连接的触控走线30会将该短路检测信号输出至与该触控走线30电连接、位于第二触控电极列44、且排列序号为一的第一开关单元64,由于该第一开关单元64导通,通过第一开关单元64将该短路检测信号(短路反馈信号)输出,根据该短路反馈信号可以确定触控电极431和触控电极432之间是否发生短路;或者,触控电极433和触控电极432之间是否发生短路;或者,触控电极431和触控电极432之间以及触控电极433和触控电极432之间是否发生短路。
在第二检测子阶段,向第二条第一控制线63发送第一使能信号,排列序号为二的第一开关单元64导通,与第一触控电极列43对应的第一输入端in1输入的短路检测信号通过排列序号为二的第一开关单元64向位于第一触控电极列43且位于第二触控电极行42的触控电极421、423、425提供短路检测信号以及向触控电极441、443、445提供短路检测信号。如果触控电极421和触控电极422之间短路,则触控电极421接收到的短路检测信号会传输至触控电极422,与触控电极422电连接的触控走线30会将该短路检测信号输出至与该触控走线30电连接、位于第二触控电极列44、且排列序号为二的第一开关单元64;若触控电极423和触控电极422短路,则触控电极423接收到的短路检测信号会传输至触控电极422,与触控电极422电连接的触控走线30会将该短路检测信号输出至与该触控走线30电连接、位于第二触控电极列44、且排列序号为二的第一开关单元64,由于该第一开关单元64导通,通过第一开关单元64将该短路检测信号(短路反馈信号)输出,根据该短路反馈信号可以确定触控电极421和触控电极422之间是否发生短路;或者,触控电极423和触控电极422之间是否发生短路;或者,触控电极421和触控电极422之间以及触控电极423和触控电极422之间是否发生短路。同样,如果触控电极441和触控电极442之间短路,则触控电极441接收到的短路检测信号会传输至触控电极442,与触控电极442电连接的触控走线30会将该短路检测信号输出至与该触控走线30电连接、位于第二触控电极列44、且排列序号为二的第一开关单元64;若触控电极443和触控电极442短路,则触控电极443接收到的短路检测信号会传输至触控电极442,与触控电极442电连接的触控走线30会将该短路检测信号输出至与该触控走线30电连接、位于第二触控电极列44、且排列序号为二的第一开关单元64,由于该第一开关单元64导通,通过第一开关单元64将该短路检测信号(短路反馈信号)输出,根据该短路反馈信号可以确定触控电极441和触控电极442之间是否发生短路;或者,触控电极443和触控电极442之间是否发生短路;或者,触控电极441和触控电极442之间以及触控电极443和触控电极442之间是否发生短路。
上述示例仅以其中一个第二触控区组21中,位于同一行、且相邻的触控电 极40之间是否短路为例进行说明,该检测方法还适用于其它第二触控区组21中,位于同一行、且相邻的触控电极40之间是否短路的检测。
综上,通过上述检测方法,既可以检测出,位于同一列且相邻的触控电极之间是否短路,还可以检测出,位于同一行且相邻的触控电极之间是否短路,实现触控电极全面精准的检测,解决在制备显示面板中的触控电极时,出现触控电极之间的金属残留,影响后续的触控检测的问题。
上述实施例对第二检测电路60的结构进行了介绍,下面对第一检测电路50的结构进行介绍。
在上述多个实施例的基础上,可选的,图5是本申请实施例提供的又一种显示面板的结构示意图,其中,图5仅以上述实施例中的其中一个实施例为基础,对第一检测电路50进行的细化,但不构成对本申请的限定。参见图5,第一检测电路50包括多个选通模块51;选通模块51包括第二输入端in2、第三输入端in3和两个第二输出端out2;选通模块51的两个第二输出端out2分别与第一触控电极以及第二触控电极电连接;其中,第一触控电极和第二触控电极位于同一个第一触控区组20且位于同一触控电极列。第一触控电极和第二触控电极例如可以为触控电极411以及触控电极421;触控电极431以及触控电极441;触控电极412以及触控电极422;触控电极432以及触控电极442;触控电极413以及触控电极423;触控电极433以及触控电极443;触控电极414以及触控电极424;触控电极434以及触控电极444;触控电极415以及触控电极425;触控电极435以及触控电极445;触控电极416以及触控电极426;以及触控电极436以及触控电极446。
在第一检测阶段,通过第一检测电路50向第一触控电极行41中的触控电极40提供短路检测信号,并根据第二检测电路60产生的短路反馈信号确定位于同一列且相邻的触控电极40之间是否短路,包括:
在第一检测阶段,通过选通模块51向第一触控电极提供短路检测信号,并根据与该第一触控电极电连接的多路选择模块61产生的短路反馈信号确定位于同一列且相邻的触控电极40之间是否短路;
在第一检测阶段,通过第一检测电路50向第一触控电极行41中的触控电极40提供短路检测信号,并根据第一检测电路50产生的短路反馈信号确定位于同一列且相邻的触控电极40之间是否短路,包括:
在第一检测阶段,向第二输入端in2提供短路检测信号,以使短路检测信号通过选通模块51传输至第一触控电极,并根据第三输入端in3产生的短路反馈信号确定位于同一列且相邻的触控电极40之间是否短路。
示例性的,选通模块51的第二输入端in2分别输入短路检测信号,该短路检测信号通过选通模块51传输至触控电极411、431、412、432、413、433、414、434、415、435、416、436。如果触控电极411以及触控电极421短路,则触控电极421接收到的短路检测信号会传输至触控电极421,与触控电极421电连接的触控走线30会将该短路检测信号输出至与该触控走线30电连接的多路选择模块61;若触控电极431和触控电极421发生短路,触控电极431接收到的短路检测信号也会传输至触控电极421,与触控电极421电连接的触控走线30也会将该短路检测信号输出至该多路选择模块61,该多路选择模块61基于此会反馈一个信号,即短路反馈信号,根据该短路反馈信号可以确定触控电极411和触控电极421之间是否发生短路;或者,触控电极431和触控电极421之间发生短路,或者,触控电极411和触控电极421之间以及触控电极431和触控电极421之间均发生短路。
示例性的,选通模块51的第二输入端in2分别输入短路检测信号,该短路检测信号通过选通模块51传输至触控电极411、431、412、432、413、433、414、434、415、435、416、436。如果触控电极411以及触控电极421短路,则触控电极421接收到的短路检测信号会传输至触控电极421,与触控电极421电连接的触控走线30会将该短路检测信号输出至与该触控走线30电连接的选通模块51;若触控电极431和触控电极421发生短路,触控电极431接收到的短路检测信号也会传输至触控电极421,与触控电极421电连接的触控走线30也会将该短路检测信号输出至该选通模块51,通过该选通模块51的第三输入端in3进行反馈,根据该短路反馈信号也可以确定触控电极411和触控电极421之间是否发生短路;或者,触控电极431和触控电极421之间发生短路,或者,触控电极411和触控电极421之间以及触控电极431和触控电极421之间均发生短路。
上述示例以第一列的触控电极411、421、431之间是否短路为例进行说明,该方法同样适用于其他列其他行的触控电极。
在上述方案的基础上,可选的,图6是本申请实施例提供的又一种显示面板的结构示意图,如图6所示,第一检测电路50还包括第二控制线52、第三控制线53、第一短路信号提供线54和第二短路信号提供线55;选通模块51包括第二开关单元56和第三开关单元57;第二开关单元56的第一端与第二短路信号提供线55电连接,第二开关单元56的第二端与第一触控电极电连接,其中,第一触控电极例如可以为触控电极411、431、412、432、413、433、414、434、415、435、416、436;第二开关单元56的控制端与第二控制线52电连接;第三开关单元57的第一端与第一短路信号提供线54电连接,第三开关单元57的第二端与第二触控电极电连接,其中,第二触控电极例如可以为触控电极421、 441、422、442、423、443、424、444、425、445、426、446;第三开关单元57的控制端与第三控制线53电连接;
在第一检测阶段,通过选通模块51向第一触控电极行41中触控电极40提供短路检测信号,并根据与该触控电极40电连接的多路选择模块61产生的短路反馈信号确定位于同一列且相邻的触控电极40之间是否短路,包括:
在第一检测阶段,向第二控制线52发送第二使能信号,以将第二短路信号提供线55传输的短路检测信号通过第二开关单元56传输至第一触控电极,并根据与该第一触控电极电连接的多路选择模块61产生的短路反馈信号确定位于同一列且相邻的触控电极40之间是否短路;
在第一检测阶段,通过选通模块51向第一触控电极行41中触控电极40提供短路检测信号,并根据该选通模块51产生的短路反馈信号确定位于同一列且相邻的触控电极40之间是否短路,包括:
在第一检测阶段,向第二控制线52发送第二使能信号,以将第二短路信号提供线55传输的短路检测信号通过第二开关单元56传输至第一触控电极,同时第三控制线53接收第三使能信号,以使第三开关单元57导通,并根据第一短路信号提供线54产生的短路反馈信号确定位于同一列且相邻的触控电极40之间是否短路。
所述在所述第一检测阶段,通过所述选通模块51向所述第一触控电极提供短路检测信号,并根据与所述第一触控电极电连接的多路选择模块61产生的短路反馈信号确定位于同一列且相邻的触控电极40之间是否短路,包括:
在所述第一检测阶段,向所述第二控制线52发送第二使能信号,以将所述第二短路信号提供线55传输的短路检测信号通过所述第二开关单元56传输至所述第一触控电极,并根据与所述第一触控电极电连接的多路选择模块61产生的短路反馈信号确定位于同一列且相邻的触控电极40之间是否短路;
所述在所述第一检测阶段,向所述第二输入端in2提供短路检测信号,以使所述短路检测信号通过所述选通模块51传输至所述第一触控电极,并根据所述第三输入端in3产生的短路反馈信号确定位于同一列且相邻的触控电极40之间是否短路,包括:
在所述第一检测阶段,向所述第二控制线52发送第二使能信号,以将所述第二短路信号提供线55传输的短路检测信号通过第二开关单元56传输至所述第一触控电极,同时所述第三控制线53接收第三使能信号,以使所述第三开关单元57导通,并根据所述第一短路信号提供线54产生的短路反馈信号确定位于同一列且相邻的触控电极40之间是否短路。
示例性的,继续参见图6,在第一检测阶段,向第二控制线52发送第二使能信号,多个选通模块51中的第二开关单元56导通,第二输入端in2传输的短路检测信号通过第二短路信号提供线55以及导通的第二开关单元56传输至触控电极411、431、412、432、413、433、414、434、415、435、416、436。如果触控电极411和触控电极421之间短路,则触控电极411接收到的短路检测信号会传输至触控电极421,与触控电极421电连接的触控走线30会将该短路检测信号输出至与该触控走线30电连接的多路选择模块61;若触控电极431和触控电极421发生短路,触控电极431接收到的短路检测信号也会传输至触控电极421,与触控电极421电连接的触控走线30也会将该短路检测信号输出至该多路选择模块61,该多路选择模块61基于此会反馈一个信号,即短路反馈信号,根据该短路反馈信号可以确定触控电极411和触控电极421之间是否发生短路;或者,触控电极431和触控电极421之间发生短路,或者,触控电极411和触控电极421之间以及触控电极431和触控电极421之间均发生短路。
示例性的,在第一检测阶段,向第二控制线52发送第二使能信号,多个选通模块51中的第二开关单元56导通,第二输入端in2传输的短路检测信号通过第二短路信号提供线55以及导通的第二开关单元56传输至触控电极411、431、412、432、413、433、414、434、415、435、416、436。如果触控电极411和触控电极421之间短路,则触控电极411接收到的短路检测信号会传输至触控电极421,与触控电极421电连接的触控走线30会将该短路检测信号输出至与该触控走线30电连接的第三开关单元57,若触控电极431和触控电极421发生短路,触控电极431接收到的短路检测信号也会传输至触控电极421,与触控电极421电连接的触控走线30也会将该短路检测信号输出至该第三开关单元57,通过第三开关单元57以及第三输入端in3进行反馈,根据该短路反馈信号也可以确定触控电极411和触控电极421之间是否发生短路;或者,触控电极431和触控电极421之间发生短路,或者,触控电极411和触控电极421之间以及触控电极431和触控电极421之间均发生短路。
上述示例以第一列的触控电极411、421、431之间是否短路为例进行说明,该方法同样适用于其他列其他行的触控电极。
下面结合第一检测电路和第二检测电路中多个信号的时序图,对如何检测相邻触控电极之间是否短路的工作过程进行说明。如下工作过程仅以图6所示的显示面板的结构为例进行说明,其他结构显示面板中的信号的时序与此基本相同,在此不再赘述。
图7是本申请实施例提供的一种第一检测电路和第二检测电路中多个信号的时序图,参见图6和图7所示,在T1时段,即上述实施例中的第一检测子阶 段:第二控制线52传输的信号VCOMSWA为低电平,第三控制线53传输的信号VCOMSWB为低电平,第一控制线63中与排列序号为一的第一开关单元641电连接的其中一个第一控制线631传输的信号TPSWA为高电平,第一控制线63中与排列序号为二的第一开关单元642电连接的其中一个第一控制线632传输的信号TPSWB为低电平,第二开关单元56、第三开关单元57以及排列序号为二的第一开关单元642关断,排列序号为一的第一开关单元641导通,第一触控电极列43对应的第一输入端in1输入的短路检测信号通过排列序号为一的第一开关单元641传输至触控电极411、413、415、431、433、435,如果触控电极411和触控电极412之间短路,则触控电极411接收到的短路检测信号会传输至触控电极412,与触控电极412电连接的触控走线30会将该短路检测信号输出至与该触控走线30电连接、位于第二触控电极列44、且排列序号为一的第一开关单元641;若触控电极413和触控电极412短路,则触控电极413接收到的短路检测信号会传输至触控电极412,与触控电极412电连接的触控走线30会将该短路检测信号输出至与该触控走线30电连接、位于第二触控电极列44、且排列序号为一的第一开关单元64,由于该第一开关单元641导通,通过该第一开关单元641以及第二触控电极列44对应的第一输入端in1将该短路检测信号(短路反馈信号)输出,根据该短路反馈信号可以确定触控电极411和触控电极412之间是否发生短路;或者,触控电极413和触控电极412之间是否发生短路;或者,触控电极411和触控电极412之间以及触控电极413和触控电极412之间是否发生短路。同样,如果触控电极431和触控电极432之间短路,则触控电极431接收到的短路检测信号会传输至触控电极432,与触控电极432电连接的触控走线30会将该短路检测信号输出至与该触控走线30电连接、位于第二触控电极列44、且排列序号为一的第一开关单元64;若触控电极433和触控电极432短路,则触控电极433接收到的短路检测信号会传输至触控电极432,与触控电极432电连接的触控走线30会将该短路检测信号输出至与该触控走线30电连接、位于第二触控电极列44、且排列序号为一的第一开关单元64,由于该第一开关单元64导通,通过第一开关单元64将该短路检测信号(短路反馈信号)输出,根据该短路反馈信号可以确定触控电极431和触控电极432之间是否发生短路;或者,触控电极433和触控电极432之间是否发生短路;或者,触控电极431和触控电极432之间以及触控电极433和触控电极432之间是否发生短路。同时可以检测出触控电极413和触控电极414之间是否发生短路;或者,触控电极415和触控电极414之间是否发生短路;或者,触控电极413和触控电极414之间以及触控电极415和触控电极414之间是否发生短路。以及,触控电极433和触控电极434之间是否发生短路;或者,触控电极435和触控电极434之间是否发生短路;或者,触控电极433和触控电极 434之间以及触控电极434和触控电极435之间是否发生短路。以及,触控电极415和触控电极416之间是否发生短路。以及,触控电极435和触控电极436之间是否发生短路。
在T2时段,即上述实施例中的第二检测子阶段:第二控制线52传输的信号VCOMSWA为低电平,第三控制线53传输的信号VCOMSWB为低电平,第一控制线63中与排列序号为一的第一开关单元641电连接的其中一个第一控制线631传输的信号TPSWA为低电平,第一控制线63中与排列序号为二的第一开关单元642电连接的其中一个第一控制线632传输的信号TPSWB为高电平,第二开关单元56、第三开关单元57以及排列序号为一的第一开关单元641关断,排列序号为二的第一开关单元642导通,第一触控电极列43对应的第一输入端in1输入的短路检测信号通过排列序号为二的第一开关单元642传输至触控电极421、423、425、441、443、445。如果触控电极421和触控电极422之间短路,则触控电极421接收到的短路检测信号会传输至触控电极422,与触控电极422电连接的触控走线30会将该短路检测信号输出至与该触控走线30电连接、位于第二触控电极列44、且排列序号为二的第一开关单元642;若触控电极423和触控电极422短路,则触控电极423接收到的短路检测信号会传输至触控电极422,与触控电极422电连接的触控走线30会将该短路检测信号输出至与该触控走线30电连接、位于第二触控电极列44、且排列序号为二的第一开关单元642,由于该第一开关单元642导通,通过该第一开关单元642以及第二触控电极列44对应的第一输入端in1将该短路检测信号(短路反馈信号)输出,根据该短路反馈信号可以确定触控电极421和触控电极422之间是否发生短路;或者,触控电极423和触控电极422之间是否发生短路;或者,触控电极421和触控电极422之间以及触控电极423和触控电极422之间是否发生短路。同样,如果触控电极441和触控电极442之间短路,则触控电极441接收到的短路检测信号会传输至触控电极442,与触控电极442电连接的触控走线30会将该短路检测信号输出至与该触控走线30电连接、位于第二触控电极列44、且排列序号为二的第一开关单元642;若触控电极443和触控电极442短路,则触控电极443接收到的短路检测信号会传输至触控电极442,与触控电极442电连接的触控走线30会将该短路检测信号输出至与该触控走线30电连接、位于第二触控电极列44、且排列序号为二的第一开关单元642,由于该第一开关单元642导通,通过第一开关单元642将该短路检测信号(短路反馈信号)输出,根据该短路反馈信号可以确定触控电极441和触控电极442之间是否发生短路;或者,触控电极443和触控电极442之间是否发生短路;或者,触控电极441和触控电极442之间以及触控电极443和触控电极442之间是否发生短路。同时可以检测出触控电极423和触控电极424之间是否发生短路;或者,触控电极425 和触控电极424之间是否发生短路;或者,触控电极423和触控电极424之间以及触控电极425和触控电极424之间是否发生短路。以及,触控电极443和触控电极444之间是否发生短路;或者,触控电极445和触控电极444之间是否发生短路;或者,触控电极443和触控电极444之间以及触控电极444和触控电极445之间是否发生短路。以及,触控电极425和触控电极426之间是否发生短路。以及,触控电极445和触控电极446之间是否发生短路。
在T3时段,即上述实施例中的第一检测阶段:第二控制线52传输的信号VCOMSWA为高电平,第三控制线53传输的信号VCOMSWB为低电平,第一控制线63中与排列序号为一的第一开关单元641电连接的其中一个第一控制线631传输的信号TPSWA为低电平,第一控制线63中与排列序号为二的第一开关单元642电连接的其中一个第一控制线632传输的信号TPSWB为高电平,第三开关单元57以及排列序号为一的第一开关单元641关断,第二开关单元56以及排列序号为二的第一开关单元642导通,第二短路信号提供线55传输的短路检测信号通过导通的第二开关单元56传输至触控电极411、431、412、432、413、433、414、434、415、435、416、436;如果触控电极411和触控电极421之间短路,则触控电极411接收到的短路检测信号会传输至触控电极421,与触控电极421电连接的触控走线30会将该短路检测信号输出至与该触控走线30电连接的排列序号为二的第一开关单元642;若触控电极431和触控电极421发生短路,触控电极431接收到的短路检测信号也会传输至触控电极421,与触控电极421电连接的触控走线30也会将该短路检测信号输出至该排列序号为二的第一开关单元642,该排列序号为二的第一开关单元642基于此会反馈一个信号,即短路反馈信号,根据该短路反馈信号可以确定触控电极411和触控电极421之间是否发生短路;或者,触控电极431和触控电极421之间发生短路,或者,触控电极411和触控电极421之间以及触控电极431和触控电极421之间均发生短路。上述示例以第一列的触控电极40之间是否短路为例进行说明,该方法同样适用于其他列的触控电极,在此不再一一赘述。
图7仅是本申请实施例提供的一种时序图,但是检测时序图并不限于图7所示的,在其他可选的实施例中,示例性的,图8是本申请实施例提供的又一种第一检测电路和第二检测电路中多个信号的时序图,与图7不同之处在于,图8中的第三控制线53传输的信号VCOMSWB在T3时段,即上述实施例中的第一检测阶段为高电平,此时,第三开关单元57也是导通的,如此,还可通过第三开关单元57反馈的信号确定触控电极411和触控电极421之间是否发生短路;或者,触控电极431和触控电极421之间发生短路,或者,触控电极411和触控电极421之间以及触控电极431和触控电极421之间均发生短路。
可选的,上述实施例中的第一开关单元64、第二开关单元56和第三开关单 元57例如可以均为薄膜晶体管、场效应管(Metal-Oxide-Semiconductor Field-Effect Transistor,MOS)管等具有开关功能的器件。
上述多个实施例,可以在绑定驱动芯片之前对触控电极之间是否短路进行检测,即显示面板制备完成后,先对触控电极进行短路检测,如果相邻触控电极之间没有发生短路,则可以绑定驱动芯片,如果相邻触控电极之间发生短路,则不绑定驱动芯片,如此,可以防止在绑定驱动芯片后检测出触控电极不良,而造成驱动芯片等物料浪费的情况产生,进而能够降低显示面板的生产成本。但这仅是本申请的一种方案,在其他可选实施例中,还可以是绑定驱动芯片之后,对相邻触控电极之间进行短路检测。例如,图9是本申请实施例提供的又一种显示面板的结构示意图,如图9所示,显示面板100还包括驱动芯片10,通过该驱动芯片10完成上述多个实施例的相邻触控电极之间的短路检测。在一实施例中,驱动芯片10设置为在第一检测阶段,通过第一检测电路50向第一触控电极行41中的触控电极40提供短路检测信号,并根据第二检测电路60产生的短路反馈信号确定位于同一列且相邻的触控电极40之间是否短路。驱动芯片10,还设置为在第一检测阶段,通过第一检测电路50向第一触控电极行41中的触控电极40提供短路检测信号,并根据第一检测电路50产生的短路反馈信号确定位于同一列且相邻的触控电极40之间是否短路。驱动芯片10,还设置为在第二检测阶段,通过与第一触控电极列43对应的多路选择模块61向位于第一触控电极列43的触控电极40提供短路检测信号,并根据与第二触控电极列44对应的多路选择模块61产生的短路反馈信号确定同一行的触控电极40之间是否短路。驱动芯片10,还设置为在第i检测子阶段,向第i条第一控制线63发送第一使能信号,以通过排列序号为i的第一开关单元64向位于第一触控电极列43的触控电极40提供短路检测信号,并根据第二触控电极列44对应的排列序号为i的第一开关单元64产生的短路反馈信号确定第n*i行的触控电极40之间是否短路;其中,n为1、2、…,Z/M,且n为正整数,Z为触控电极总行数。驱动芯片10,还设置为在第一检测阶段,通过第一检测电路50向第一触控电极40提供短路检测信号,并根据第二触控电极40电连接第一开关单元64产生的短路反馈信号确定位于同一列且相邻的触控电极40之间是否短路;其中,第一触控电极40和第二触控电极40位于同一个第一触控区组20且位于同一触控电极列。驱动芯片10,还设置为在第一检测阶段,通过选通模块51向第一触控电极40提供短路检测信号,并根据与该第一触控电极40电连接的多路选择模块61产生的短路反馈信号确定位于同一列且相邻的触控电极40之间是否短路;驱动芯片10,还设置为在所述第一检测阶段,向第二输入端in2提供短路检测信号,以使短路检测信号通过选通模块51传输至第一触控电极40,并根据第三输入端in3产生的短路反馈信号确定位于同一列且相邻的触控电极40之间 是否短路。驱动芯片10,还设置为在第一检测阶段,向第二控制线52发送第二使能信号,以使第二开关单元56导通,并将短路检测信号依次通过第二短路信号提供线55和第二开关单元56传输至第一触控电极40,并根据与该第一触控电极40电连接的多路选择模块61产生的短路反馈信号确定位于同一列且相邻的触控电极40之间是否短路;驱动芯片10,还设置为在第一检测阶段,向第三控制线53发送第三使能信号,以使第三开关单元57导通,并根据第一短路信号提供线54产生的短路反馈信号确定位于同一列且相邻的触控电极40之间是否短路。
上述实施例中的显示面板可以为液晶显示面板,也可以为有机发光显示面板。而为了降低成本和简化工艺,本实施例中将显示面板中的结构复用为触控电极,例如,当显示面板为液晶显示面板时,将液晶显示面板的公共电极复用为触控电极;当显示面板为有机发光显示面板时,将有机发光显示面板的阴极复用为触控电极。
基于此,可选的,显示面板还包括点屏测试阶段;检测方法还包括:在点屏测试阶段,通过第一检测电路50或第二检测电路60向多个触控电极提供点屏测试信号,以确定显示面板是否显示异常。点屏测试阶段可以位于触控短路检测阶段之前,也可以位于触控短路检测阶段之后。
所述驱动芯片10,设置为在所述点屏测试阶段,通过所述第一检测电路50或所述第二检测电路60向多个触控电极40提供点屏测试信号,以确定所述显示面板是否显示异常。
所述驱动芯片10,设置为在所述显示子阶段,通过所述第一检测电路50和所述第二检测电路60分别向多个触控电极40提供公共信号,以对所述显示面板内的子像素进行显示驱动;
所述驱动芯片10,设置为在所述触控子阶段,通过所述第二检测电路60分时向所述触控电极40提供触控扫描信号,并根据所述第二检测电路60反馈的触控检测信号确定触控位置。在绑定驱动芯片之前,一般需要对显示面板进行点屏测试,以确定该显示面板是否正常工作,由于公共电极(液晶显示面板)或阴极(有机发光显示面板)复用为触控电极,所以可以利用第一检测电路或第二检测电路向触控电极提供相应的点屏测试信号,以确定显示面板是否正常。
示例性的,继续参见图6,在点屏测试阶段,第二控制线52和第三控制线53传输的信号为使能信号,以使第二开关单元56和第三开关单元57导通。第一短路信号提供线54和第二短路信号提供线55传输的点屏测试信号,通过导通的第二开关单元56和第三开关单元57传输至多个触控电极40,以确定显示面板是否显示异常。或者,在点屏测试阶段,第一控制线63传输的信号为使能 信号,以使第一开关单元64导通。第一输入端in1传输的点屏测试信号,通过导通的第一开关单元64传输至多个触控电极40,以确定显示面板是否显示异常。
本技术方案,第一检测电路和第二检测电路不仅可以实现对相邻触控电极是否短路的情况进行检测,同时还可以实现对显示面板的点屏测试,无需单独设置相应的电路,简化显示面板的结构,降低显示面板的制备流程,提高显示面板的制备效率,且降低显示面板的制备成本。
在上述多个方案的基础上,可选的,显示面板还包括显示阶段;
显示阶段包括显示子阶段和触控子阶段;检测方法还包括:在显示子阶段,通过第一检测电路50和第二检测电路60分别向多个触控电极40提供公共信号,以对显示面板内的子像素进行显示驱动;在触控子阶段,通过第二检测电路60分时向触控电极40提供触控扫描信号,并根据第二检测电路60反馈的触控检测信号确定触控位置。
完成对显示面板的点屏测试检测以及相邻触控电极是否短路的检测之后,可以将驱动芯片绑定于显示面板中,以通过驱动芯片控制显示面板实现正常的显示和触控,即驱动芯片,设置为在显示子阶段,通过第一检测电路和第二检测电路分别向多个触控电极提供公共信号,以对显示面板内的子像素进行显示驱动;驱动芯片,设置为在触控子阶段,通过第二检测电路分时向触控电极提供触控扫描信号,并根据第二检测电路反馈的触控检测信号确定触控位置。
示例性的,继续参见图9,在显示子阶段,驱动芯片10向第二控制线52和第三控制线53提供使能信号以及向第一控制线63提供使能信号,以使第二开关单元56、第三开关单元57以及第一开关单元64导通。通过驱动芯片10向第一输入端in1、第一短路信号提供线54和第二短路信号提供线55提供公共信号,该公共信号通过导通的第二开关单元56、第三开关单元57以及第一开关单元64传输至多个触控电极40,由于每一个触控电极40可以接收第一检测电路50和第二检测电路60提供的公共信号,如此,可以降低由于电压降而导致不同触控电极40接收到的公共信号不同,进而导致显示不均的问题。
在触控子阶段,仅通过第二检测电路分时向触控电极提供触控扫描信号,并根据第二检测电路反馈的触控检测信号确定触控位置。示例性的,继续参见图9,在第一时刻,与排列序号为一的第一开关单元641电连接的其中一个第一控制线631传输使能信号,多路选通模块61中的排列序号为一的第一开关单元641导通,以将第一输入端in1传输的触控扫描信号传输至触控电极411、412、413、414、415、416、431、432、433、434、435、436;在第二时刻,与排列序号为二的第一开关单元642电连接的其中一个第一控制线632传输使能信号,多路选通模块61中的排列序号为二的第一开关单元642导通,以将第一输入端 in1传输的触控扫描信号传输至触控电极421、422、423、424、425、426、441、442、443、444、445、446,完成对触控显示面板内所有触控电极40的扫描。然后根据每个触控电极40反馈的触控检测信号确定触控位置。
综上所述,本申请实施例提供的显示面板以及检测方法,通过第一检测电路和第二检测电路,不仅可以完成相邻触控电极之间是否短路的检测,还可以完成显示面板的点屏测试检测以及后续显示面板应用到实际产品中完成显示面板的正常显示以及触控。
基于同样的构思,本申请实施例还提供了一种驱动芯片,该驱动芯片可执行本申请任意实施例所提供的检测方法,具备执行检测方法相应的功能模块和效果。
基于同样的构思,本申请实施例还提供了一种显示装置,该显示装置包括上述实施方式提供的任一种显示面板。示例性的,如图10所示,该显示装置101包括显示面板100。因此,该显示装置也具有上述实施方式中的显示面板所具有的效果,相同之处可参照上文对显示面板的解释说明进行理解,下文不再赘述。
本申请实施例提供的显示装置101可以为图10所示的手机,也可以为任何具有显示功能的电子产品,包括但不限于以下类别:电视机、笔记本电脑、桌上型显示器、平板电脑、数码相机、智能手环、智能眼镜、车载显示器、工控设备、医用显示屏、触摸交互终端等,本申请实施例对此不作特殊限定。
Claims (20)
- 一种检测方法,显示面板包括至少一个第一触控区组和多条触控走线;所述第一触控区组包括两行N列的触控电极;每条触控走线与每个触控电极一一对应电连接;其中,N≥1,且N为正整数;所述显示面板还包括第一检测电路和第二检测电路;所述每个触控电极通过所述触控走线分别与所述第一检测电路和所述第二检测电路电连接;所述两行N列的触控电极包括第一触控电极行和第二触控电极行;所述第一触控电极行和所述第二触控电极行相邻;所述显示面板包括触控短路检测阶段;所述触控短路检测阶段包括第一检测阶段;所述检测方法包括:在所述第一检测阶段,通过所述第一检测电路向所述第一触控电极行中的触控电极提供短路检测信号;根据所述第二检测电路产生的短路反馈信号确定位于同一列且相邻的触控电极之间是否短路。
- 根据权利要求1所述的检测方法,其中,所述第二检测电路包括多个多路选择模块;所述多路选择模块包括第一输入端和M个第一输出端,其中,M≥2,且M为正整数;所述多路选择模块的所述M个第一输出端通过M条触控走线一一对应的与位于同一列且相邻的M个触控电极电连接;所述检测方法还包括:在所述第一检测阶段,通过所述第一检测电路向所述第一触控电极行中的触控电极提供短路检测信号,并根据所述第一检测电路产生的短路反馈信号确定位于同一列且相邻的触控电极之间是否短路。
- 根据权利要求2所述的检测方法,其中,所述显示面板还包括至少一个第二触控区组;所述第二触控区组包括两列L行的触控电极,其中,L≥2,且L为正整数;所述两列L行的触控电极包括第一触控电极列和第二触控电极列;所述第一触控电极列和所述第二触控电极列相邻;所述触控短路检测阶段还包括第二检测阶段;所述检测方法还包括:在所述第二检测阶段,通过与所述第一触控电极列对应的多路选择模块向 位于所述第一触控电极列的触控电极提供短路检测信号,并根据与所述第二触控电极列对应的多路选择模块产生的短路反馈信号确定同一行的触控电极之间是否短路。
- 根据权利要求3所述的检测方法,其中,所述第二检测电路包括M条第一控制线;所述多路选择模块包括M个第一开关单元;不同多路选择模块中的相同排列序号的第一开关单元的控制端电连接同一条第一控制线;同一个多路选择模块中的所述M个第一开关单元的第一端电连接,同一个多路选择模块中的所述M个第一开关单元的第二端一一对应与位于同一列且相邻的M个触控电极电连接;所述第二检测阶段包括第一检测子阶段,…,第i检测子阶段,…,第M检测子阶段;其中,1≤i≤M,且i为正整数;所述在所述第二检测阶段,通过与所述第一触控电极列对应的多路选择模块向位于所述第一触控电极列的触控电极提供短路检测信号,并根据与所述第二触控电极列对应的多路选择模块产生的短路反馈信号确定同一行的触控电极之间是否短路,包括:在所述第i检测子阶段,向第i条第一控制线发送第一使能信号,以通过排列序号为i的第一开关单元向位于所述第一触控电极列的触控电极提供短路检测信号,并根据所述第二触控电极列对应的排列序号为i的第一开关单元产生的短路反馈信号确定第n*i行的触控电极之间是否短路;其中,n为1、2、…,Z/M,且n为正整数,Z为触控电极总行数;所述在所述第一检测阶段,通过所述第一检测电路向所述第一触控电极行中的触控电极提供短路检测信号,根据所述第二检测电路产生的短路反馈信号确定位于同一列且相邻的触控电极之间是否短路,包括:在所述第一检测阶段,通过所述第一检测电路向第一触控电极提供短路检测信号,并根据第二触控电极电连接所述第一开关单元产生的短路反馈信号确定位于同一列且相邻的触控电极之间是否短路;其中,所述第一触控电极和所述第二触控电极位于同一个第一触控区组且位于同一触控电极列。
- 根据权利要求2所述的检测方法,其中,所述第一检测电路包括多个选通模块;所述选通模块包括第二输入端、第三输入端和两个第二输出端;所述选通模块的所述两个第二输出端分别与第一触控电极以及第二触控电极电连接;其中,所述第一触控电极和所述第二触控电极位于同一个第一触控区组且位于同一触控电极列;所述在所述第一检测阶段,通过所述第一检测电路向所述第一触控电极行中的触控电极提供短路检测信号,根据所述第二检测电路产生的短路反馈信号确定位于同一列且相邻的触控电极之间是否短路,包括:在所述第一检测阶段,通过所述选通模块向所述第一触控电极提供短路检测信号,并根据与所述第一触控电极电连接的多路选择模块产生的短路反馈信号确定位于同一列且相邻的触控电极之间是否短路;所述在所述第一检测阶段,通过所述第一检测电路向所述第一触控电极行中的触控电极提供短路检测信号,并根据所述第一检测电路产生的短路反馈信号确定位于同一列且相邻的触控电极之间是否短路,包括:在所述第一检测阶段,向所述第二输入端提供短路检测信号,以使所述短路检测信号通过所述选通模块传输至所述第一触控电极,并根据所述第三输入端产生的短路反馈信号确定位于同一列且相邻的触控电极之间是否短路。
- 根据权利要求5所述的检测方法,其中,所述第一检测电路还包括第二控制线、第三控制线、第一短路信号提供线和第二短路信号提供线;所述选通模块包括第二开关单元和第三开关单元;所述第二开关单元的第一端与所述第二短路信号提供线电连接,所述第二开关单元的第二端与所述第一触控电极电连接,所述第二开关单元的控制端与所述第二控制线电连接;所述第三开关单元的第一端与所述第一短路信号提供线电连接,所述第三开关单元的第二端与所述第二触控电极电连接,所述第三开关单元的控制端与所述第三控制线电连接;所述在所述第一检测阶段,通过所述选通模块向所述第一触控电极提供短路检测信号,并根据与所述第一触控电极电连接的多路选择模块产生的短路反馈信号确定位于同一列且相邻的触控电极之间是否短路,包括:在所述第一检测阶段,向所述第二控制线发送第二使能信号,以将所述第二短路信号提供线传输的短路检测信号通过所述第二开关单元传输至所述第一触控电极,并根据与所述第一触控电极电连接的多路选择模块产生的短路反馈信号确定位于同一列且相邻的触控电极之间是否短路;所述在所述第一检测阶段,向所述第二输入端提供短路检测信号,以使所述短路检测信号通过所述选通模块传输至所述第一触控电极,并根据所述第三输入端产生的短路反馈信号确定位于同一列且相邻的触控电极之间是否短路,包括:在所述第一检测阶段,向所述第二控制线发送第二使能信号,以将所述第二短路信号提供线传输的短路检测信号通过第二开关单元传输至所述第一触控 电极,同时所述第三控制线接收第三使能信号,以使所述第三开关单元导通,并根据所述第一短路信号提供线产生的短路反馈信号确定位于同一列且相邻的触控电极之间是否短路。
- 根据权利要求1-6中任一项所述的检测方法,其中,所述显示面板还包括点屏测试阶段;所述检测方法还包括:在所述点屏测试阶段,通过所述第一检测电路或所述第二检测电路向多个触控电极提供点屏测试信号,以确定所述显示面板是否显示异常。
- 根据权利要求1-6中任一项所述的检测方法,其中,所述显示面板还包括显示阶段;所述显示阶段包括显示子阶段和触控子阶段;所述检测方法还包括:在所述显示子阶段,通过所述第一检测电路和所述第二检测电路分别向多个触控电极提供公共信号,以对所述显示面板内的子像素进行显示驱动;在所述触控子阶段,通过所述第二检测电路分时向所述触控电极提供触控扫描信号,并根据所述第二检测电路反馈的触控检测信号确定触控位置。
- 根据权利要求2所述的检测方法,其中,多个触控电极阵列排布,所述第一检测电路和所述第二检测电路分别位于触控电极阵列相对的两侧;所述第一触控电极行位于奇数行;或者,所述第一触控电极行位于偶数行。
- 一种显示面板,包括:驱动芯片、至少一个第一触控区组和多条触控走线;所述第一触控区组包括两行N列的触控电极;每条触控走线与每个触控电极一一对应电连接;其中,N≥1,且N为正整数;所述显示面板还包括第一检测电路和第二检测电路;所述每个触控电极通过所述触控走线分别与所述第一检测电路和所述第二检测电路电连接;所述两行N列的触控电极包括第一触控电极行和第二触控电极行;所述第一触控电极行和所述第二触控电极行相邻;所述显示面板包括触控短路检测阶段;所述触控短路检测阶段包括第一检测阶段;所述驱动芯片,设置为在所述第一检测阶段,通过所述第一检测电路向所述第一触控电极行中的触控电极提供短路检测信号,并根据所述第二检测电路产生的短路反馈信号确定位于同一列且相邻的触控电极之间是否短路。
- 根据权利要求10所述的显示面板,其中,所述第二检测电路包括多个多路选择模块;所述多路选择模块包括第一输入端和M个第一输出端,其中,M≥2,且M为正整数;所述多路选择模块的所述M个第一输出端通过M条触控走线一一对应的与位于同一列且相邻的M个触控电极电连接;所述驱动芯片,还设置为在所述第一检测阶段,通过所述第一检测电路向所述第一触控电极行中的触控电极提供短路检测信号,并根据所述第一检测电路产生的短路反馈信号确定位于同一列且相邻的触控电极之间是否短路。
- 根据权利要求11所述的显示面板,其中,所述显示面板还包括至少一个第二触控区组;所述第二触控区组包括两列L行的触控电极,其中,L≥2,且L为正整数;所述两列L行的触控电极包括第一触控电极列和第二触控电极列;所述第一触控电极列和所述第二触控电极列相邻;所述触控短路检测阶段还包括第二检测阶段;所述驱动芯片,还设置为在所述第二检测阶段,通过与所述第一触控电极列对应的多路选择模块向位于所述第一触控电极列的触控电极提供短路检测信号,并根据与所述第二触控电极列对应的多路选择模块产生的短路反馈信号确定同一行的触控电极之间是否短路。
- 根据权利要求12所述的显示面板,其中,所述第二检测电路包括M条第一控制线;所述多路选择模块包括M个第一开关单元;不同多路选择模块中的相同排列序号的第一开关单元的控制端电连接同一条第一控制线;同一个多路选择模块中的所述M个第一开关单元的第一端电连接,同一个多路选择模块中的所述M个第一开关单元的第二端一一对应与位于同一列且相邻的M个触控电极电连接;所述第二检测阶段包括第一检测子阶段,…,第M检测子阶段;所述驱动芯片,设置为在所述第i检测子阶段,向第i条第一控制线发送第一使能信号,以通过排列序号为i的第一开关单元向位于所述第一触控电极列的触控电极提供短路检测信号,并根据所述第二触控电极列对应的排列序号为i的第一开关单元产生的短路反馈信号确定第n*i行的触控电极之间是否短路;其中,n为1、2、…,Z/M,且n为正整数,Z为触控电极总行数;所述驱动芯片,还设置为在所述第一检测阶段,通过所述第一检测电路向 第一触控电极提供短路检测信号,并根据第二触控电极电连接所述第一开关单元产生的短路反馈信号确定位于同一列且相邻的触控电极之间是否短路;其中,所述第一触控电极和所述第二触控电极位于同一个第一触控区组且位于同一触控电极列。
- 根据权利要求11所述的显示面板,其中,所述第一检测电路包括多个选通模块;所述选通模块包括第二输入端、第三输入端和两个第二输出端;所述选通模块的所述两个第二输出端分别与第一触控电极以及第二触控电极电连接;其中,所述第一触控电极和所述第二触控电极位于同一个第一触控区组且位于同一触控电极列;所述驱动芯片,设置为在所述第一检测阶段,通过所述选通模块向所述第一触控电极提供短路检测信号,并根据与所述第一触控电极电连接的多路选择模块产生的短路反馈信号确定位于同一列且相邻的触控电极之间是否短路;所述驱动芯片,还设置为在所述第一检测阶段,向所述第二输入端提供短路检测信号,以使所述短路检测信号通过所述选通模块传输至所述第一触控电极,并根据所述第三输入端产生的短路反馈信号确定位于同一列且相邻的触控电极之间是否短路。
- 根据权利要求14所述的显示面板,其中,所述第一检测电路还包括第二控制线、第三控制线、第一短路信号提供线和第二短路信号提供线;所述选通模块包括第二开关单元和第三开关单元;所述第二开关单元的第一端与所述第二短路信号提供线电连接,所述第二开关单元的第二端与所述第一触控电极电连接,所述第二开关单元的控制端与所述第二控制线电连接;所述第三开关单元的第一端与所述第一短路信号提供线电连接,所述第三开关单元的第二端与所述第二触控电极电连接,所述第三开关单元的控制端与所述第三控制线电连接;所述驱动芯片,设置为在所述第一检测阶段,向所述第二控制线发送第二使能信号,以使第二开关单元导通,并将短路检测信号依次通过所述第二短路信号提供线和所述第二开关单元传输至所述第一触控电极,并根据与所述第一触控电极电连接的多路选择模块产生的短路反馈信号确定位于同一列且相邻的触控电极之间是否短路;所述驱动芯片,还设置为在所述第一检测阶段,向所述第三控制线发送第三使能信号,以使第三开关单元导通,并根据所述第一短路信号提供线产生的短路反馈信号确定位于同一列且相邻的所述触控电极之间是否短路。
- 根据权利要求10-15中任一项所述的显示面板,其中,所述显示面板还 包括点屏测试阶段;所述驱动芯片,设置为在所述点屏测试阶段,通过所述第一检测电路或所述第二检测电路向多个触控电极提供点屏测试信号,以确定所述显示面板是否显示异常。
- 根据权利要求10-15中任一项所述的显示面板,其中,所述显示面板还包括显示阶段;所述显示阶段包括显示子阶段和触控子阶段;所述驱动芯片,设置为在所述显示子阶段,通过所述第一检测电路和所述第二检测电路分别向多个触控电极提供公共信号,以对所述显示面板内的子像素进行显示驱动;所述驱动芯片,设置为在所述触控子阶段,通过所述第二检测电路分时向所述触控电极提供触控扫描信号,并根据所述第二检测电路反馈的触控检测信号确定触控位置。
- 根据权利要求10所述的显示面板,其中,所述显示面板包括液晶显示面板或有机发光显示面板。
- 一种驱动芯片,用于执行权利要求1-9中任一项所述的检测方法。
- 一种显示装置,包括权利要求10-18中任一项所述的显示面板。
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