CN106910447B - Touch display panel, touch display device and display exception handling method - Google Patents
Touch display panel, touch display device and display exception handling method Download PDFInfo
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- CN106910447B CN106910447B CN201710266277.2A CN201710266277A CN106910447B CN 106910447 B CN106910447 B CN 106910447B CN 201710266277 A CN201710266277 A CN 201710266277A CN 106910447 B CN106910447 B CN 106910447B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/13338—Input devices, e.g. touch panels
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/40—OLEDs integrated with touch screens
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Abstract
The embodiment of the invention provides a touch display panel, a touch display device and a display abnormity processing method, relates to the technical field of touch display, and can reduce the probability of abnormity of a display picture caused by electrostatic impact. The touch display panel comprises scanning lines, touch signal lines and data lines, the touch signal lines are multiplexed into common electrode lines, and the touch display panel further comprises: the detection unit is used for outputting the same preset pulse signals to the scanning lines, the touch signal lines and the data lines in a test period; and the reset unit is used for receiving the feedback signal on the touch signal line in the test time period and outputting reset information when the feedback signal meets a preset condition. The technical scheme is mainly used for processing display abnormity caused by electrostatic impact.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of touch display, in particular to a touch display panel, a touch display device and a display exception handling method.
[ background of the invention ]
In a display product, a display processor generally transmits a generated data signal to a display unit through a data line to display a picture, and during the use of the display product, the impact of static electricity may cause an abnormality of a circuit in the display processor, thereby causing an abnormality of the display picture.
At present, for the problem of abnormal display image caused by electrostatic shock, a mode of periodically reading a state value of a specific register in a display processor is usually adopted to determine whether the state value of the specific register is abnormal, and if the state value of the specific register is abnormal, the display processor is enabled to execute a reset process, so as to recover the normal display image. However, in all cases, the state value of the specific register is not changed by the electrostatic shock, and thus there is still an abnormality in the display screen due to the electrostatic shock.
[ summary of the invention ]
In view of this, embodiments of the present invention provide a touch display panel, a touch display device and a display exception handling method, which can reduce the probability of an exception occurring in a display screen due to electrostatic shock.
In one aspect, an embodiment of the present invention provides a touch display panel, including scan lines, touch signal lines, and data lines, where the touch signal lines are multiplexed as common electrode lines, and the touch display panel further includes:
the detection unit is used for outputting the same preset pulse signals to the scanning lines, the touch signal lines and the data lines in a test period;
and the reset unit is used for receiving the feedback signal on the touch signal line in the test time period and outputting reset information when the feedback signal meets a preset condition.
Optionally, the reset unit further includes:
the processing module is used for receiving the feedback signal on the touch signal line in the test time period and outputting a numerical value corresponding to the feedback signal;
and the resetting module is used for receiving the numerical value which is output by the processing module and corresponds to the feedback signal and outputting the resetting information when the numerical value which corresponds to the feedback signal exceeds a preset value.
Optionally, the test period comprises a plurality of sub-test periods;
the touch display panel comprises a plurality of touch time periods, and part of the touch time periods in the plurality of touch time periods are used as the plurality of sub-test time periods.
Optionally, the test period comprises a plurality of periodic sub-test periods;
the touch display panel includes a plurality of periodic touch periods, and a part of the plurality of periodic touch periods is used as the plurality of periodic sub-test periods.
Optionally, the touch display panel further includes:
and the detection unit comprises a clock signal control module, and the clock signal control module is used for outputting the preset pulse signal to the clock signal line in the test time period.
Optionally, the touch display panel further includes:
a display processor;
and the display processor is used for receiving the reset information and executing a reset process.
On the other hand, an embodiment of the invention further provides a touch display device, which includes the touch display panel.
In another aspect, an embodiment of the present invention further provides a touch display device, including:
the touch display panel;
a main control board;
the touch display panel further comprises a display processor;
the main control board is used for receiving the reset information and outputting a reset instruction;
and the display processor is used for receiving the reset instruction and executing a reset process.
On the other hand, an embodiment of the present invention further provides a display exception handling method, which is used for a touch display device, where the touch display device includes scan lines, touch signal lines, data lines, and a display processor, the touch signal lines are multiplexed as common electrode lines, and the method includes:
in a test period, outputting the same preset pulse signal to the scanning line, the touch signal line and the data line, and receiving a feedback signal on the touch signal line;
and when the feedback signal meets a preset condition, enabling the display processor to execute a reset process.
Optionally, when the feedback signal satisfies a preset condition, the process of causing the display processor to execute a reset procedure includes:
processing the feedback signal to obtain a numerical value corresponding to the feedback signal;
and when the value corresponding to the feedback signal exceeds a preset value, the display processor executes a reset process.
Optionally, the test period comprises a plurality of sub-test periods;
the touch display panel comprises a plurality of touch time periods, and part of the touch time periods in the plurality of touch time periods are used as the plurality of sub-test time periods.
Optionally, the test period comprises a plurality of periodic sub-test periods;
the touch display panel includes a plurality of periodic touch periods, and a part of the plurality of periodic touch periods is used as the plurality of periodic sub-test periods.
Optionally, the touch display device further includes a main control panel;
when the feedback signal meets a preset condition, the process of enabling the display processor to execute a reset process comprises the following steps:
when the feedback signal meets the preset condition, outputting reset information to the main control board;
the main control board responds to the reset information and outputs a reset instruction to the display processor;
the display processor executes the reset procedure in response to the reset instruction.
In the touch display panel, the touch display device and the display exception handling method in the embodiment of the invention, the same preset pulse signals are output to the scanning lines, the touch signal lines and the data lines in the testing period, so that the touch signal lines enter the static shock detection state, the touch signal lines are not interfered in the testing period, the feedback signals on the touch signal lines are received at the same time, and the reset information is output when the feedback signals meet the preset conditions, so that the display processor is reset.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a touch display panel according to an embodiment of the invention;
FIG. 2 is a timing diagram of signals output to scan lines, data lines and touch signal lines during a test period according to an embodiment of the present invention;
FIG. 3 is a block diagram of a reset unit according to an embodiment of the present invention;
FIG. 4 is a timing diagram of signals output to scan lines, data lines and touch signal lines at various time intervals according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of another touch display panel according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a touch display device according to an embodiment of the invention;
FIG. 7 is a schematic structural diagram of another touch display device according to an embodiment of the present disclosure;
FIG. 8 is a flowchart illustrating an exception handling method according to an embodiment of the present invention;
FIG. 9 is a flowchart illustrating another exception handling method according to an embodiment of the present invention;
FIG. 10 is a flowchart illustrating another exception handling method according to an embodiment of the present invention.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.
As shown in fig. 1, fig. 1 is a schematic structural diagram of a touch display panel according to an embodiment of the present invention, and the embodiment of the present invention provides a touch display panel including scan lines 11, touch signal lines (not shown in the drawings) and data lines 12, where the touch signal lines are multiplexed as common electrode lines, the scan lines 11 and the data lines 12 intersect to define a plurality of display units distributed in a matrix, the display units are located in a display area 13, that is, a shaded area filled with dots in fig. 1, the data lines 12 are used for transmitting data signals so that the display units perform light emitting display according to the data signals, the scan lines 11 are used for transmitting scan signals to the display units so that the display units receive the data signals line by line according to the scan signals, the touch display panel further includes a plurality of touch electrodes (not shown in the drawings) distributed in a matrix, each touch electrode is electrically connected to a corresponding touch signal line, in the touch time interval, the touch signal line is used for transmitting a touch signal, and in the display time interval, the touch signal line is used for transmitting the voltage of the common electrode, so that the touch electrode is reused as the common electrode. The touch display panel further includes: the detection unit 2 is used for outputting the same preset pulse signals to the scanning line 11, the touch signal line and the data line 12 in a test period; and the reset unit 3 is used for receiving the feedback signal on the touch signal line in the test period and outputting reset information when the feedback signal meets a preset condition. The touch display panel may further include a display processor 4, the display processor 4 being configured to generate a data signal and transmit the data signal to the display unit through the data line 12, and the reset information being configured to reset the display processor 4.
Specifically, the electrostatic impact may cause the data transmitted by the signal line on the display panel to be abnormal, so that the same preset pulse signal may be output to the scan line 11, the touch signal line and the data line 12 during the testing period, so that the touch signal line enters the state of electrostatic impact detection, and the touch signal line is not interfered during the testing period, as shown in fig. 2, fig. 2 is a signal timing diagram output to the scan line, the data line and the touch signal line during the testing period in the embodiment of the present invention, wherein Vgate represents the pulse signal output to the scan line 11, Vdata represents the pulse signal output to the data line 12, Vtp represents the pulse signal output to the touch signal line, and meanwhile, during the testing period, the feedback signal on the touch signal line is received, and if there is no electrostatic impact, in the normal state, the feedback signal received on the touch signal line should correspond to the pulse signal, that is, the feedback signal has a specific waveform in a normal state; if there is electrostatic impact, the feedback signal on the touch signal line is abnormal under the influence of the electrostatic impact, that is, the feedback signal is not in the specific waveform in the state of the electrostatic impact. The preset condition is related to the specific waveform, when the feedback signal is the specific waveform, the feedback signal does not meet the preset condition, which indicates that no electrostatic shock exists at the moment, and normal display is continued; when the feedback signal is not the specific waveform, the feedback signal meets a preset condition, which indicates that static electricity impact exists at the moment, and the display processor needs to execute a reset process to recover to an initial state so as to eliminate adverse effects of the static electricity impact on the display processor.
It should be noted that the touch display panel in the embodiment of the present invention may be a liquid crystal display panel or an electronic paper display panel as shown in fig. 1, and in addition, the touch display panel in the embodiment of the present invention may also be an Organic Light-Emitting Diode (OLED) display panel.
Compared with the prior art, the touch display panel in the embodiment of the invention does not need to read the state value of the register when carrying out abnormity detection, can more accurately judge whether the static impact occurs and can be used as a basis for judging whether the display processor is reset, thereby reducing the probability of the abnormity of a display picture caused by the static impact.
Optionally, as shown in fig. 3, fig. 3 is a block diagram of a reset unit in an embodiment of the present invention, where the reset unit 3 further includes: the processing module 31 is configured to receive a feedback signal on the touch signal line during a test period, and output a value corresponding to the feedback signal; the reset module 32 is configured to receive the value of the corresponding feedback signal output by the processing module, and output reset information when the value of the corresponding feedback signal exceeds a preset value.
Specifically, the feedback signal on the touch signal line is an analog signal, which is not beneficial to directly comparing and judging with the preset condition, so that the feedback signal can be converted into a corresponding numerical value, and whether the numerical value exceeds the preset value is taken as a standard for judging whether the feedback signal meets the preset condition.
Optionally, as shown in fig. 4, fig. 4 is a timing diagram of signals output to the scan lines, the data lines, and the touch signal lines at each time interval in the embodiment of the present invention, where the test time interval includes a plurality of sub-test time intervals t (only one sub-test time interval t is illustrated in fig. 4); the touch display panel includes a plurality of touch periods tp, and a part of the plurality of touch periods tp is used as a plurality of sub-test periods t.
Specifically, in the display process of the touch display panel, frames are used as cycles for displaying, and one frame indicates a refresh time for completing one-time frame display of the touch display panel, that is, scanning of all rows of display units is completed in each frame. It should be noted that fig. 4 only illustrates signal waveforms output to the scan lines, the data lines, and the touch signal lines in the sub-test period t, and signal waveforms output to the scan lines, the data lines, and the touch signal lines in the touch period tp and the display period td are omitted.
Alternatively, as shown in fig. 4, various types of periods may be further set to be periodic, the test period including a plurality of periodic sub-test periods t (only one sub-test period t is illustrated in fig. 4); the touch display panel comprises a plurality of periodic touch periods tp, and a part of the plurality of periodic touch periods tp is used as a plurality of periodic sub-test periods t. The periodic time period refers to a time period that is repeatedly repeated, and the time spent by each cycle is the same, for example, each frame includes 120 touch time periods tp that occur periodically, and the 60 th touch time period and the 120 th touch time period are taken as the sub-test time period t to perform the anomaly test, so as to realize that the sub-test time period t is also set as the periodic time period. In the working process of the touch display panel, abnormal picture display caused by electrostatic impact can occur at any time, so that the abnormal test can be carried out more comprehensively and timely by the periodical time period setting, the influence on normal display and touch functions is small by the periodical setting of the sub-test time period t in the normal display process, the period of the sub-test time period t can be set as required, the longer the period is, the smaller the influence on the touch function is, and the shorter the period is, the more timely the abnormal test can be carried out.
Optionally, as shown in fig. 5, fig. 5 is a schematic structural diagram of another touch display panel in an embodiment of the present invention, fig. 5 is a schematic structural diagram of fig. 1, fig. 1 only illustrates a connection relationship of the detection unit 2, fig. 5 further illustrates components included in the detection unit, and the touch display panel further includes: a clock signal line (not shown in the figure), the detecting unit 2 may include a clock signal control module 5, a data line control module 6 and a gate driving circuit 7, the hatched area filled in dots in fig. 5 is the display area 13, the clock signal control module 5 is used for during the test period, the data line control module 6 is used for outputting the preset pulse signal to the clock signal line, during the testing period, outputting the preset pulse signal to the touch signal line and the data line 12, connecting the gate driving circuit 7 to the clock signal line, connecting the gate driving circuit 7 to the scan line 11, wherein, the gate drive circuit 7 is used for providing scanning signals for the scanning lines 11, the clock signal line is used for providing clock signals required by scanning for the gate drive circuit 7, in order for the gate driving circuit 7 to output the preset pulse signal, the same preset pulse signal needs to be supplied to the clock signal line. It should be noted that the clock signal control module 5, the data line control module 6 and the reset unit 3 may be integrated with the display processor 4 in a driving chip.
Alternatively, as shown in fig. 1 and fig. 5, the display processor 4 may include two reset modes, in the first reset mode, the reset unit 3 directly sends the reset information to the display processor 4, and the display processor 4 is further configured to receive the reset information and execute a reset process in response to the reset information, so as to return to an initial state to eliminate adverse effects of electrostatic shock on the display processor 4, in the first reset mode, the display processor 4 resets in response to the reset information, and the second reset mode will be described in the subsequent embodiment. In the first reset mode, the component for implementing the abnormal test and reset function and the display processor 4 can be integrated in the same chip, so that an element additionally arranged outside the touch display panel is not required to participate in the abnormal picture test.
As shown in fig. 6, fig. 6 is a schematic structural diagram of a touch display device in an embodiment of the present invention, and an embodiment of the present invention further provides a touch display device including the touch display panel 100. The specific structure and principle of the touch display panel 100 are the same as those of the above embodiments, and are not described herein again. The display device may be any electronic device with a display function, such as a touch display screen, a mobile phone, a tablet computer, a notebook computer, an electronic paper book, or a television.
Compared with the prior art, the display device in the embodiment of the invention does not need to read the state value of the register when the touch display panel performs the abnormity detection, can more accurately judge whether the static impact occurs and can be used as the basis for judging whether the display processor is reset, thereby reducing the probability of the abnormity of the display picture caused by the static impact.
As shown in fig. 7, fig. 7 is a schematic structural diagram of another touch display device in an embodiment of the present invention, and an embodiment of the present invention further provides a touch display device, including: the touch display panel 100 described above; a main control board 200; in fig. 7, the hatched area filled in dot shape is a display area 13, and the touch display panel further includes a display processor 8; the main control board 200 is configured to receive the reset information sent by the reset unit 3, and output a reset instruction to the display processor 8; and the display processor 8 is used for receiving a reset instruction and executing a reset process in response to the reset instruction. In the touch display device shown in fig. 7, the display processor 8 may also be reset by a second reset mode, different from the first reset mode in the embodiment shown in fig. 5, in the second reset mode, the reset unit 3 outputs reset information to the main control board 200, the main control board 200 outputs a reset instruction to the display processor 8 in response to the reset information, and the display processor 8 resets in response to the reset instruction sent by the main control board 200. In the second reset mode, the display processor 8 executes the reset process in response to the reset instruction sent by the main control board 200, and in the prior art, the display processor 8 is controlled by the main control board 200 to execute the processes such as reset, so that compared with the first reset mode, the second reset mode is compatible with the existing reset process, and the implementation mode is simpler. The specific structure and principle of the touch display panel 100 are the same as those of the above embodiments, and are not described herein again. The display device may be any electronic device with a display function, such as a touch display screen, a mobile phone, a tablet computer, a notebook computer, an electronic paper book, or a television. It should be noted that fig. 7 is not a complete structural illustration of the touch display device, but only illustrates a connection relationship between the touch display panel 100 and the main control board 200, and in an actual touch display device, for example, a mobile phone, the main control board 200 is usually located on the back of the touch display panel 100.
Compared with the prior art, the display device in the embodiment of the invention does not need to read the state value of the register when the touch display panel performs the abnormity detection, can more accurately judge whether the static impact occurs and can be used as the basis for judging whether the display processor is reset, thereby reducing the probability of the abnormity of the display picture caused by the static impact.
An embodiment of the present invention further provides a display exception handling method, which is used for a touch display device, as shown in fig. 6 and 7, where the touch display device includes a touch display panel 100, as shown in fig. 1 and 7, the touch display panel includes a scan line 11, a touch signal line, a data line 12, and a display processor, the display processor may be the display processor 4 in the embodiment shown in fig. 1 or the display processor 8 in the embodiment shown in fig. 7, the touch signal line is multiplexed into a common electrode line, as shown in fig. 8, fig. 8 is a flowchart illustrating a display exception handling method in an embodiment of the present invention, and the method includes:
and 102, when the feedback signal meets a preset condition, enabling the display processor to execute a reset process.
And when the feedback signal does not meet the preset condition, continuing the normal display process, and not executing the reset process by the display processor.
The specific structure and principle of the touch display device are the same as those of the above embodiments corresponding to fig. 6 and fig. 7, and are not described herein again.
Compared with the prior art, the display abnormity processing method in the embodiment of the invention has the advantages that when the touch display panel carries out abnormity detection, the state value of the register does not need to be read, whether the static impact occurs can be more accurately judged and used as the basis for judging whether the display processor is reset, and the probability of abnormity of a display picture caused by the static impact is reduced.
Optionally, as shown in fig. 9, fig. 9 is a schematic flowchart of another display exception handling method in the embodiment of the present invention, where in the step 102, when the feedback signal satisfies a preset condition, a process of enabling the display processor to execute a reset procedure includes:
Alternatively, as shown in fig. 4, the test period includes a plurality of sub-test periods t; the touch display panel includes a plurality of touch periods tp, and a part of the plurality of touch periods tp is used as a plurality of sub-test periods t. In the embodiment of the invention, part of the touch time interval is taken as a sub-test time interval t, and in the sub-test time interval t, touch detection is not performed, but display abnormity detection is performed, so that the normal display and touch functions are not influenced in the abnormity detection process. It should be noted that fig. 4 only illustrates signal waveforms output to the scan lines, the data lines, and the touch signal lines in the sub-test period t, and signal waveforms output to the scan lines, the data lines, and the touch signal lines in the touch period tp and the display period td are omitted.
Alternatively, as shown in fig. 4, various types of periods may be further set to be periodic, the test period including a plurality of periodic sub-test periods t; the touch display panel comprises a plurality of periodic touch periods tp, and a part of the plurality of periodic touch periods tp is used as a plurality of periodic sub-test periods t. The periodic time interval refers to a time interval that is repeated in a cycle, and the time spent in each cycle is the same, for example, each frame includes 120 touch time intervals tp that occur periodically, and the 60 th touch time interval and the 120 th touch time interval are used as the sub-test time intervals t to perform the anomaly test. In the working process of the touch display panel, abnormal picture display caused by electrostatic impact can occur at any time, so that the abnormal test can be carried out more comprehensively and timely by the periodical time period setting, the influence on normal display and touch functions is small by the periodical setting of the sub-test time period t in the normal display process, the period of the sub-test time period t can be set as required, the longer the period is, the smaller the influence on the touch function is, and the shorter the period is, the more timely the abnormal test can be carried out.
Optionally, as shown in fig. 7, the touch display device further includes a main control panel 200, as shown in fig. 10, fig. 10 is a schematic flow chart of another display exception handling method in an embodiment of the present invention, and the step 102, when the feedback signal satisfies a preset condition, a process of enabling the display processor to execute a reset flow includes:
103, outputting reset information to the main control board 200 when the feedback signal meets a preset condition;
104, the main control board 200 responds to the reset information and outputs a reset instruction to the display processor 8;
Specifically, as shown in fig. 7, the reset unit 3 outputs reset information to the main control board 200, the main control board 200 outputs a reset instruction to the display processor 8 in response to the reset information, and the display processor 8 performs reset in response to the reset instruction sent by the main control board 200. The display processor 8 executes the reset process in response to the reset instruction sent by the main control board 200, and in the prior art, the display processor 8 is controlled by the main control board 200 to execute the processes such as reset, so that the reset mode can be compatible with the existing reset process, and the implementation mode is simpler.
Compared with the prior art, the display abnormity processing method in the embodiment of the invention has the advantages that when the touch display panel carries out abnormity detection, the state value of the register does not need to be read, whether the static impact occurs can be more accurately judged and used as the basis for judging whether the display processor is reset, and the probability of abnormity of a display picture caused by the static impact is reduced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (12)
1. The utility model provides a touch-control display panel, includes scanning line, touch-control signal line and data line, the multiplexing of touch-control signal line is public electrode line, its characterized in that, touch-control display panel still includes:
the detection unit is used for outputting the same preset pulse signals to the scanning lines, the touch signal lines and the data lines in a test period;
the reset unit is used for receiving a feedback signal on the touch signal line in the test time period and outputting reset information when the feedback signal meets a preset condition;
and the display processor is used for receiving the reset information and executing a reset process.
2. The touch display panel of claim 1,
the reset unit further includes:
the processing module is used for receiving the feedback signal on the touch signal line in the test time period and outputting a numerical value corresponding to the feedback signal;
and the resetting module is used for receiving the numerical value which is output by the processing module and corresponds to the feedback signal and outputting the resetting information when the numerical value which corresponds to the feedback signal exceeds a preset value.
3. The touch display panel according to claim 1 or 2,
the test period comprises a plurality of sub-test periods;
the touch display panel comprises a plurality of touch time periods, and part of the touch time periods in the plurality of touch time periods are used as the plurality of sub-test time periods.
4. The touch display panel according to claim 1 or 2,
the test period comprises a plurality of periodic sub-test periods;
the touch display panel includes a plurality of periodic touch periods, and a part of the plurality of periodic touch periods is used as the plurality of periodic sub-test periods.
5. The touch display panel according to claim 1 or 2, further comprising:
and the detection unit comprises a clock signal control module, and the clock signal control module is used for outputting the preset pulse signal to the clock signal line in the test time period.
6. A touch display device comprising the touch display panel according to any one of claims 1 to 5.
7. A touch display device, comprising:
the touch display panel according to any one of claims 1 to 5;
a main control board;
the touch display panel further comprises a display processor;
the main control board is used for receiving the reset information and outputting a reset instruction;
and the display processor is used for receiving the reset instruction and executing a reset process.
8. A display exception handling method is used for a touch display device, the touch display device comprises scanning lines, touch signal lines, data lines and a display processor, the touch signal lines are multiplexed into a common electrode line, and the method is characterized by comprising the following steps:
in a test period, outputting the same preset pulse signal to the scanning line, the touch signal line and the data line, and receiving a feedback signal on the touch signal line;
and when the feedback signal meets a preset condition, enabling the display processor to execute a reset process.
9. The display exception handling method of claim 8,
when the feedback signal meets a preset condition, the process of enabling the display processor to execute a reset process comprises the following steps:
processing the feedback signal to obtain a numerical value corresponding to the feedback signal;
and when the value corresponding to the feedback signal exceeds a preset value, the display processor executes a reset process.
10. The display exception handling method according to claim 8 or 9,
the test period comprises a plurality of sub-test periods;
the touch display device comprises a touch display panel, wherein the touch display panel comprises a plurality of touch time intervals, and part of the touch time intervals in the plurality of touch time intervals are used as the plurality of sub-test time intervals.
11. The display exception handling method according to claim 8 or 9,
the test period comprises a plurality of periodic sub-test periods;
the touch display device includes a touch display panel including a plurality of periodic touch periods, a portion of the plurality of periodic touch periods being used as the plurality of periodic sub-test periods.
12. The display exception handling method according to claim 8, wherein the touch display device further comprises a main control board;
when the feedback signal meets a preset condition, the process of enabling the display processor to execute a reset process comprises the following steps:
when the feedback signal meets the preset condition, outputting reset information to the main control board;
the main control board responds to the reset information and outputs a reset instruction to the display processor;
the display processor executes the reset procedure in response to the reset instruction.
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| US11537237B2 (en) | 2017-09-26 | 2022-12-27 | Boe Technology Group Co., Ltd. | Touch panel and touch screen having pixel circuit with reset module |
| CN107564474B (en) | 2017-09-26 | 2019-08-06 | 京东方科技集团股份有限公司 | A kind of touch panel and touch screen |
| CN109036230B (en) * | 2018-07-25 | 2022-04-29 | 武汉精测电子集团股份有限公司 | Touch detection data acquisition and display method and device |
| CN109766067A (en) * | 2019-01-04 | 2019-05-17 | Oppo广东移动通信有限公司 | Electrostatic interference restoration methods and relevant apparatus |
| CN109901745B (en) * | 2019-02-19 | 2022-03-11 | Oppo广东移动通信有限公司 | Screen control method and related product |
| CN112783354A (en) * | 2019-11-08 | 2021-05-11 | 杭州海康威视数字技术股份有限公司 | Control method, device and equipment of touch device and storage medium |
| CN113593457B (en) * | 2021-07-23 | 2024-04-26 | 昆山国显光电有限公司 | Display panel and testing method thereof |
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| CN101930308B (en) * | 2009-06-19 | 2012-07-25 | 炬力集成电路设计有限公司 | Method and device for resetting drive circuit of touch input device |
| TWI410852B (en) * | 2010-05-05 | 2013-10-01 | Novatek Microelectronics Corp | Touch detection method and related touch control device |
| CN102541167A (en) * | 2010-12-23 | 2012-07-04 | 鸿富锦精密工业（深圳）有限公司 | Electronic device |
| CN104808859B (en) * | 2015-05-08 | 2019-04-23 | 厦门天马微电子有限公司 | A kind of In-cell touch panel and touch display unit |
| CN106371643B (en) * | 2015-07-22 | 2019-11-08 | 小米科技有限责任公司 | Touch chip crash handling method and device |
| CN106502461B (en) * | 2016-10-31 | 2019-07-02 | Oppo广东移动通信有限公司 | Restore the method, device and mobile terminal of touch screen state before electrostatic resets |
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