CN112925450A - Display device and driving method thereof - Google Patents
Display device and driving method thereof Download PDFInfo
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- CN112925450A CN112925450A CN202110314808.7A CN202110314808A CN112925450A CN 112925450 A CN112925450 A CN 112925450A CN 202110314808 A CN202110314808 A CN 202110314808A CN 112925450 A CN112925450 A CN 112925450A
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000012545 processing Methods 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 13
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/04166—Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving
- G06F3/041661—Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving using detection at multiple resolutions, e.g. coarse and fine scanning; using detection within a limited area, e.g. object tracking window
Abstract
The embodiment of the application provides a driving method of a display device and the display device, wherein the driving method is used for driving the display device to complete a plurality of touch control stages, and the plurality of touch control stages comprise at least one specific touch control stage; in a specific touch stage, a touch area of the display device comprises at least one first type touch area and a second type touch area, and the touch hit rate of the first type touch area is greater than that of the second type touch area; the specific touch control stage comprises at least one first touch control sub-stage and a second touch control sub-stage, and the first touch control sub-stage and the second touch control sub-stage are carried out in sequence; in at least one first touch sub-stage, the first type touch area finishes touch reporting points; and in the second sub-touch stage, the first type touch area and the second type touch area finish touch reporting. The driving method and the display device provided by the application can finish high-frequency touch reporting in a short time, improve the time required by display, and are easy to realize in a specific implementation mode.
Description
[ technical field ] A method for producing a semiconductor device
The present disclosure relates to the field of display technologies, and in particular, to a driving method of a display device and a display device.
[ background of the invention ]
With the diversification of consumer demands for display devices, such as playing games with mobile phones, high frequency touch is becoming a research focus. In the conventional touch display technology, a touch module is usually integrated in a display panel, that is, the touch function and the display function of the display device are performed in time division, and high frequency touch means that the display time is compressed. How to solve the problem that the display time is compressed during high-frequency touch is a technical problem to be solved urgently.
[ application contents ]
In view of the above, embodiments of the present application provide a driving method of a display device and a display device to solve the above problems.
In a first aspect, an embodiment of the present application provides a driving method for a display device, configured to drive the display device to complete multiple touch phases, where the multiple touch phases include at least one specific touch phase; in a specific touch stage, a touch area of the display device comprises at least one first type touch area and a second type touch area, and the touch hit rate of the first type touch area is greater than that of the second type touch area; the specific touch control stage comprises at least one first touch control sub-stage and a second touch control sub-stage, and the first touch control sub-stage and the second touch control sub-stage are carried out in sequence; in at least one first touch sub-stage, the first type touch area finishes touch reporting points; and in the second sub-touch stage, the first type touch area and the second type touch area finish touch reporting.
In one implementation manner of the first aspect, the display device includes a driving chip and a plurality of touch electrodes; in the first touch sub-stage, the driving chip performs touch scanning on the touch electrodes in at least one first type of touch area to complete touch reporting; in the second touch sub-stage, the driving chip performs touch scanning on the touch electrodes in the first type of touch area and the second type of touch area to complete touch reporting; and in a first touch sub-stage, the driving chip suspends scanning on the touch electrode according to the cutoff signal.
In an implementation manner of the first aspect, in a first touch sub-stage, the driving chip starts to process the received touch signal of the touch electrode according to the cut-off signal.
In an implementation manner of the first aspect, the specific touch phase includes at least two first touch sub-phases and one second touch sub-phase.
In an implementation manner of the first aspect, in a specific touch control phase, the first touch control sub-phase is performed before the second touch control sub-phase.
In an implementation manner of the first aspect, the touch area of the display device includes at least two first-type touch areas, and all the first-type touch areas complete touch pointing within one first touch sub-phase.
In an implementation manner of the first aspect, the touch areas of the display device include at least two first-type touch areas, and at least two first-type touch areas respectively complete touch pointing in different first touch sub-phases.
In an implementation manner of the first aspect, at least two first-type touch areas are symmetrically distributed.
In a second aspect, an embodiment of the present application provides a display device, wherein a working process of the display device includes a plurality of touch phases, and the plurality of touch phases includes at least one specific touch phase; in a specific touch stage, the display device is driven by the driving method provided in the first aspect.
According to the driving method and the display device provided by the embodiment of the application, the touch hit rate of the local position of the touch area of the display device is higher than that of other positions, and because only the touch hit rate of the partial position of the touch area with the high touch hit rate is needed to be high and the touch hit rate of other positions is low, the high-frequency touch hit can be completed in a shorter time, and the time required by display is prolonged. In addition, in the specific implementation manner provided in the embodiment of the present application, the touch scanning time of the position with a high touch hit rate in the touch area is performed sequentially with the touch scanning time of the entire touch area, so that the implementation is easy.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present application, 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 application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic diagram of a display device according to an embodiment of the present disclosure;
fig. 2 is a schematic view of another display device provided in an embodiment of the present application;
fig. 3 is a timing diagram illustrating an operation of a display device according to an embodiment of the present disclosure;
fig. 4 is a timing diagram illustrating an operation of another display device according to an embodiment of the present disclosure;
FIG. 5 is a driving timing diagram according to an embodiment of the present application;
fig. 6 is a timing diagram illustrating an operation of another display device according to an embodiment of the present disclosure;
FIG. 7 is a timing diagram illustrating an operation of another display device according to an embodiment of the present disclosure;
fig. 8 is a timing diagram illustrating an operation of a display device according to an embodiment of the present disclosure;
fig. 9 is a schematic view of another display device provided in an embodiment of the present application.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.
It should be understood that the embodiments described are only a few embodiments of the present application, 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 application.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application 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.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
In the description herein, it is to be understood that the terms "substantially", "approximately", "about", "substantially", and the like, as used in the claims and the examples herein, are intended to be generally accepted as not being precise, within the scope of reasonable process operation or tolerance.
It should be understood that although the terms first, second, third, etc. may be used to describe the touch areas, the touch stages, etc. in the embodiments of the present application, these touch areas, touch stages, etc. should not be limited by these terms. These terms are only used to distinguish the touch area and the touch stage from each other. For example, without departing from the scope of the embodiments of the present application, the first type of touch area may also be referred to as a second type of touch area, and similarly, the second type of touch area may also be referred to as a first type of touch area.
The applicant provides a solution to the problems of the prior art through intensive research.
The embodiment of the application provides a driving method of a display device and the display device.
Fig. 1 is a schematic view of a display device provided in an embodiment of the present application, and fig. 2 is a schematic view of another display device provided in the embodiment of the present application.
As shown in fig. 1 and fig. 2, a display device 001 according to an embodiment of the present disclosure includes a plurality of touch electrodes 10, a plurality of touch signal lines 20, a driving chip 30, and a main board (not shown), wherein the touch electrodes 10 are electrically connected to the driving chip 30 through the touch signal lines 20.
The plurality of touch electrodes 10 are located in the touch area 01 of the display device 001, and are used for collecting touch signals, and may be made of transparent electrodes or mesh-shaped metal. It should be noted that the touch electrode 10 in the display device 001 illustrated in fig. 1 and 2 is a self-contained touch electrode, and actually, the inventive concept of the present application is not only applicable to a display device integrated with self-contained touch, but also applicable to a display device integrated with mutual-contained touch.
The driving chip 30 may be directly bonded to the display panel of the display device 001 as shown in fig. 1 and 2, or may be bonded to a flexible circuit board and electrically connected to the touch electrode 10 on the display panel through the flexible circuit board. The driving chip 30 may receive the touch signal collected by the touch electrode 10 and process the touch signal.
It should be noted that the touch area 01 of the present application may be overlapped with a display area of the display device 001, that is, the display device 001 provided in the embodiment of the present application may perform touch recognition and light emitting display. In addition, the driving chip 30 may be an integrated chip including a touch driving and a display driving. Further, the touch electrode 10 may be multiplexed as a common electrode required for display.
Fig. 3 is an operation timing diagram of a display device according to an embodiment of the present application, and fig. 4 is an operation timing diagram of another display device according to an embodiment of the present application.
As shown in fig. 3 and 4, the working process of the display device 001 provided in the embodiment of the present disclosure includes a touch stage T1 and a display stage T2, where the display device 001 completes touch action recognition in the touch stage T1 and completes light emitting display in the display stage T2, and the touch stage T2 may be located between two adjacent display stages T2.
In fig. 3 and 4, the display period T2 is represented by a period in which the indication signal line STV is at a high level. In fig. 3 and 4, the touch stage T1 is represented by a stage in which the touch signal lines L21, L22, L23, L24, L25, and L26 electrically connected to the touch electrode 10 in the first row in the touch area 01 of the display device 001 transmit high level signals.
The driving method provided in the embodiment of the application can drive the display device 001 to complete a plurality of touch phases T1, wherein at least one of the touch phases T1 includes a specific touch phase T10, that is, at least one touch phase T1 of the touch phases T1 may be a specific touch phase T10.
Referring to fig. 1, fig. 2 and fig. 3, in the specific touch phase T10, the touch area 01 of the display device 001 includes at least a first type touch area 011 and a second type touch area 012, and the touch hit rate of the first type touch area 011 is greater than that of the second type touch area 012.
It should be noted that, in different specific touch phases T10, the position of the first type touch area 011 can be changed, and the position of the corresponding second type touch area 012 can be changed. That is, the positions of the first type touch area 011 and the second type touch area 012 are not fixed, and they can be determined by the mode of the display device 001 at different specific touch phases T10. That is, the display device 001 has different first-type touch areas 011 according to the display mode of the specific touch stage T10.
In an application scenario, as shown in fig. 1, when the display device 001 is in the video playing mode, the display device 001 may include a first type touch area 011 as a bullet screen input area at a specific touch stage T10, and the touch hit rate of the first type touch area is higher so that the user can sense the text input action in time; the other areas may be the second type touch area 012 with a low touch hit rate, which is mainly used for displaying a video image.
In another application scenario, as shown in fig. 2, when the display device 001 is in the game operation mode, the display device 001 may include two first-type touch areas 011 as game action manipulation areas at a specific touch stage T10, where the touch hit rate of the area is high so that the user can sense the control action in time; the other areas may be the second type touch area 012 with a low touch hit rate, which is mainly used for displaying a game scene.
It should be noted that the first type touch area 011 and the second type touch area 012 can be distributed in a manner other than the distribution illustrated in fig. 1 and 2, for example, the arrangement direction of the first type touch area 011 and the second type touch area 012 can be the same as the arrangement direction of the touch area 01 and the area where the driving chip 30 is located. The specific distribution of the first type touch area 011 and the second type touch area 012 is determined by the current mode of the display device 001 issued by the main board.
In the embodiment of the present application, the specific touch phase T10 includes at least one first touch sub-phase T11 and a second touch sub-phase T12.
In at least one first touch sub-phase T11 included in the specific touch phase T10, the first-type touch area 011 completes touch points. That is, in at least one first touch sub-phase T11 included in one specific touch phase T10, the touch electrodes 10 in the first type touch area 011 transmit the sensed touch signals to the driver chip 30 through the corresponding touch signal lines 20, and the driver chip 30 processes the received touch signals in the first type touch area 011 and reports the processed touch signals to the main board to complete one touch report. That is, in the first touch sub-phase T11, the driving chip 30 performs touch scanning on the touch electrodes 10 in the at least one first-type touch area 011, so that the at least one first-type touch area 011 completes touch pointing.
Referring to fig. 1 and fig. 3, when the first-type touch area 011 includes two rows of touch electrodes 10 on the left side of the display device 001 shown in fig. 1, at the first touch sub-stage T11, the touch signal lines L21 and L22 electrically connected to the touch electrodes 10 included in the first-type touch area 011 transmit touch signals to the driver chip 30, the driver chip 30 processes the received touch signals in the first-type touch area 011 and reports the processed touch signals to the main board, and the first-type touch area 011 completes one touch report.
Referring to fig. 2 and 4, when the first-type touch area 011 includes the left two rows of touch electrodes 10 and the right two rows of touch electrodes of the display device 001 shown in fig. 2, at least one first touch sub-stage T11 of the specific touch stage T10, the touch signal lines L21, L23, L25, and L26 electrically connected to the touch electrodes 10 included in the first-type touch area 011 transmit touch signals to the driver chip 30, the driver chip 30 processes the received touch signals in the first-type touch area 011 and reports the processed touch signals to the main board, and the first-type touch area 011 completes one touch hit.
In the second sub-touch stage T12, the first-type touch area 011 and the second-type touch area 012 complete touch pointing. That is, in the second touch sub-phase T12, all the touch electrodes 10 in the first type touch area 011 and the second type touch area 012 transmit the sensed touch signals to the driver chip 30 through the corresponding touch signal lines 20, and the driver chip 30 performs unified processing on the received touch signals in the first type touch area 011 and the second type touch area 012 and reports to the main board to complete one touch report. That is, in the second touch sub-phase T12, the driving chip 30 performs touch scanning on the touch electrodes 10 in the first type touch area 011 and the second type touch area 012, so that the first type touch area 011 and the second type touch area 012 complete one touch hit.
Referring to fig. 1 and 3, fig. 2 and fig. 4, in the second touch sub-phase T12, the first-type touch area 011 and the second-type touch area 012 include touch signal lines L21, L22, L23, L24, L25 and L26 electrically connected to the touch electrodes 10, which transmit touch signals to the driver chip 30, the driver chip 30 processes the received touch signals in the first-type touch area 011 and the second-type touch area 012 and reports the processed touch signals to the main board, and the first-type touch area 011 and the second-type touch area 012 complete one touch report.
In this way, in the specific touch stage T10, since only the first type touch area 011 completes touch pointing during the first sub-touch stage T11, and both the first type touch area 011 and the second type touch area 012 complete touch pointing during the second sub-touch stage T12, the display device 001 can realize that the touch pointing rate in the first type touch area 011 is higher than that in the second type touch area 012.
Further, in the embodiment of the present application, in a specific touch phase T10, the first touch sub-phase T11 and the second touch sub-phase T12 are performed sequentially. That is, in a specific touch phase T10, the extra touch hits of the first type touch area 011 compared with the extra touch hits of the second type touch area 012 are completed in the first touch sub-phase T11, and the first type touch area 011 and the second type touch area 012 complete the touch hits at the same time in the second touch sub-phase T12.
Fig. 5 is a driving timing diagram according to an embodiment of the present application.
It should be noted that, as shown in fig. 5, the plurality of touch phases T1 may include a normal touch phase T10' in addition to at least one specific touch phase T10. The normal touch stage T10 'is also located between two adjacent display stages T2, and in the normal touch stage T10', the driving chip 30 completes one scan of all the touch electrodes 10 in the touch area 01.
The driving method provided by the embodiment of the application can realize that the touch hit rate of the local position of the touch area of the display device 001 is higher than that of other positions, and because only the touch hit rate of the partial position of the touch area with the high touch hit rate is needed to be high and the touch hit rate of other positions is low, the high-frequency touch hit can be completed in a shorter time, and the time required by display is prolonged. In addition, in the specific implementation manner provided in the embodiment of the present application, the touch scanning time of the position with a high touch hit rate in the touch area is performed sequentially with the touch scanning time of the entire touch area, so that the implementation is easy.
In an embodiment of the application, in a first touch sub-phase T11, the driving chip 30 suspends the touch scanning on the touch electrode 10 according to the cut-off signal SYNC, please refer to fig. 3 and 4, and the cut-off signal SYNC is an active signal when it is at a high level.
In the present embodiment, the main board informs the driving chip 30 of an application scenario to which the display device 001 is about to enter, that is, informs the driving chip 30 whether the display device 001 enters the specific touch stage T10. After the driver chip 30 is informed of entering the specific touch phase T10, it can generate the truncation signal SYNC according to the specific touch phase T10 to be performed.
In a specific touch phase T10, the time and the number of times of the action of the truncation signal SYNC are determined according to the application scenario corresponding to the specific touch phase T10. Specifically, the action time of the truncation signal SYNC depends on the size of the first type touch area 011 and the number of the first type touch areas 011 scanned by one first touch sub-phase T11; the number of times of the duty of the truncation signal SYNC depends on the touch hit rate of the first type touch area 011 and the number of the first type touch areas 011 scanned by one first touch sub-phase T11.
After being informed of entering the specific touch stage T10, the driver chip 30 starts touch scanning on the touch electrodes 10 in the touch area 01, suspends touch scanning on the touch electrodes 10 when receiving the truncation signal SYNC, and then restarts touch scanning on the touch electrodes 10. Since the scanning sequence of the driving chip 30 to the touch electrode 10 is generally fixed, the scanning frequency of the specific touch region is higher than that of other touch regions by suspending and restarting the scanning of the driving chip 30 to the touch electrode 10 through the truncation signal SYNC, that is, the touch hit rate of the first-type touch region 011 is higher than that of the second-type touch region 012.
Further, in a first touch sub-phase T11, the driving chip 30 starts to process the received touch signal of the touch electrode 10 according to the cut-off signal SYNC. That is, after receiving the truncation signal SYNC, the driving chip 30 suspends scanning the touch electrode 10 and processes and reports the touch signal sensed by the scanned touch electrode 10, and when receiving the truncation signal SYNC, the driving chip 30 means that a first touch sub-stage T11 is ended. And after the driving chip 30 processes and reports the touch signal according to the truncation signal SYNC, the driving chip 30 restarts scanning the touch electrode 10.
From the above analysis, before the driving chip 30 receives the cut-off signal SYNC, the scanned touch electrodes 10 are touch electrodes 10 in at least one first type touch area 011, and touch electrodes 10 in the second type touch area 011 are not included.
It can be understood that, when the specific touch phase T10 is entered, the driving chip 30 starts to perform touch scanning on the touch electrodes 10 in the touch area 01 according to a predetermined scanning sequence, and when the truncation signal SYNC is received, the area scanned by the driving chip 30 is at least one first-type touch area 011. After processing and reporting the touch signal of the scanned area, the driving chip 30 starts to scan the touch electrodes 10 in the touch area again according to the predetermined scanning sequence, and if the truncation signal SYNC is still received, the above process is repeated to continue to complete the first sub-touch stage T11; if the truncation signal SYNC is not received, the scanning of all the touch electrodes 10 in the touch area 01 is completed, the second sub-touch stage T12 is completed, and the specific touch stage T10 is ended. In this embodiment, the first sub-touch stage T11 and the second sub-touch stage T12 included in the specific touch stage T10 are performed first in the first sub-touch stage T11 and then in the second sub-touch stage T12.
In the embodiment, the driver chip 30 automatically completes multiple touch scans of the first-type touch area 011 according to the specific form of the specific touch stage T10 informed by the motherboard and the truncation signal SYNC, and completes touch scans of the entire touch area, thereby reducing the number of real-time communications between the driver chip 30 and the motherboard IC.
Fig. 6 is a timing diagram illustrating an operation of another display device according to an embodiment of the present disclosure.
In one embodiment of the present application, as shown in fig. 3-5, a specific touch phase T10 includes a first touch sub-phase T11 and a second touch sub-phase T12, so that the touch hit rate of the first type touch area 011 is twice the touch hit rate of the second type touch area 012. In one specific implementation manner of the embodiment, in one specific touch phase T10, the first touch sub-phase T11 is performed before the second touch sub-phase T12.
In another embodiment of the present application, a specific touch phase T10 includes at least two first touch sub-phases T11 and a second touch sub-phase T12. Specifically, a specific touch phase T10 includes N first touch sub-phases T11, where N is a positive integer greater than or equal to 2, so that the touch hit rate of the first-type touch area 011 is N +1 times of the touch hit rate of the second-type touch area 012. As shown in fig. 6, a specific touch phase T10 includes 2 first touch sub-phases T11, and the touch hit rate of the first type touch area 011 is 3 times that of the second type touch area 012. In one specific implementation manner of the embodiment, the N first touch sub-phases T11 in one specific touch phase T10 are performed before the second touch sub-phase T12.
Fig. 7 is a timing diagram illustrating an operation of another display device according to an embodiment of the present disclosure.
In one embodiment of the present application, all the first touch electrodes 10 of all the first-type touch areas 011 complete one touch hit at the same first sub-touch stage T11.
In an implementation manner of the embodiment, please refer to fig. 1 and fig. 3, in a specific touch phase T10, the display device 001 includes a continuous first-type touch region 011, and in a first sub-touch phase T11 of the specific touch phase T10, the first-type touch region 011 completes touch pointing.
Referring to fig. 1 and fig. 3, at the beginning of entering the specific touch stage T10, that is, the first touch sub-stage T11, the driving chip 30 receives the touch signal sensed by the touch electrodes 10 in the first type touch area 011, and receives the truncation signal SYNC after receiving the touch signal sensed by the last row of touch electrodes 10 in the first type touch area 011, so as to suspend receiving the touch signal and start processing and reporting the touch signal; after the driving chip 30 completes the processing and reporting of the touch signal in the first touch sub-stage T11, that is, the driving chip 30 continues to receive the touch signal sensed by the touch electrode 10 for scanning in the second touch sub-stage T12, and since the driving chip 30 does not receive the truncation signal SYNC in the second touch sub-stage T12, the driving chip 30 completes the receiving of the touch signals sensed by all the touch electrodes 10 and the processing and reporting of the touch signal, and ends the specific touch stage T10.
In another implementation manner of the present embodiment, as shown in fig. 4 and fig. 7, in a specific touch phase T10, the display device 011 includes at least two first-type touch regions 011, and all the first-type touch regions 011 complete touch pointing within a first touch sub-phase T11. That is, the driving chip 30 receives the first-time cutoff signal SYNC after receiving the touch signals induced by all the touch electrodes 10 in the first-type touch area 011.
A specific technical solution corresponding to the present implementation manner is that, referring to fig. 2 and fig. 4, in a first sub-touch stage T11 of the specific touch stage T10, the at least two first-type touch regions 011 sequentially complete touch pointing. It should be noted that, in the present implementation, the at least two first type touch regions 011 can be two symmetrical first type touch regions 011 as shown in fig. 2, or two first type touch regions 011 in other forms that are randomly distributed.
In a specific technical solution corresponding to the present implementation manner, please refer to fig. 2 and 7, in a specific touch stage T10, the display device 011 includes at least two first-type touch regions 011 symmetrically distributed. In a first sub-touch stage T11 of the specific touch stage T10, the at least two first-type touch areas 011 symmetrically distributed complete touch points simultaneously. For example, referring to fig. 2 and fig. 7, in the specific touch phase T10 shown in fig. 7, two first-type touch areas 011 are distributed bilaterally symmetrically, and in a first sub-touch phase T11 of the specific touch phase T10, touch points are simultaneously completed by the touch electrodes 10 symmetrically distributed in the first-type touch area 011.
Fig. 8 is a timing diagram of an operation of another display device according to an embodiment of the present application.
In another embodiment of the present application, please refer to fig. 2 and 8, in which the touch area 01 of the display device 001 includes at least two first-type touch areas 011, and the at least two first-type touch areas 011 respectively complete touch pointing in different first touch sub-phases T11. That is, the display device 001 includes at least two first type touch areas 011 during a specific touch phase T10, and touches at least two first type touch areas 011 only partially in a first sub-touch phase T1 of the specific touch phase T10 after the first type touch areas 011, and completes touch scanning of all the first type touch areas 011 after a plurality of first sub-touch phases T1 of the specific touch phase T10 are completed.
In an implementation manner of the present embodiment, with reference to fig. 2 and fig. 8, in the specific touch phase T10, at least two first-type touch regions 011 included in the touch region 01 are symmetrically distributed. Among the at least two first-type touch areas 011 distributed symmetrically, the first-type touch area 011 on one side of the symmetry axis completes touch pointing at a first touch sub-stage T11, and the first-type touch area 011 on the other side of the symmetry axis completes touch pointing at another first touch sub-stage T11.
In a first touch sub-phase T11 of the specific touch phase T10, the driving chip 30 scans the touch electrodes 10 in the forward direction; in the second first touch sub-phase T11, the driving chip 30 reversely scans the touch electrodes 10. Referring to fig. 2 and 8, the driving chip 30 sequentially receives the touch signals sensed by the multiple rows of touch electrodes 10 in the left first-type touch area 011 from left to right, receives the truncation signal SYNC after receiving the touch signal sensed by the last row of touch electrodes 10, and then suspends receiving the touch signals and starts processing and reporting the touch signals; then, in a second first touch sub-phase T11 of the specific touch phase T10, the driver chip 30 sequentially receives touch signals sensed by the multiple rows of touch electrodes 10 in the right first-type touch area 011 from right to left, receives the truncation signal SYNC after receiving the touch signal sensed by the last row of touch electrodes 10, and then suspends receiving the touch signals and starts processing and reporting the touch signals; after receiving the truncation signal SYNC for the last time, the driver chip 30 continues to receive the touch signals sensed by the touch electrodes 10 for scanning, and since the driver chip 30 does not receive the truncation signal SYNC at the second touch sub-stage T12, the driver chip 30 completes receiving the touch signals sensed by all the touch electrodes 10, completes processing and reporting the touch signals, and ends the specific touch stage T10.
Fig. 9 is a schematic view of another display device provided in an embodiment of the present application.
The embodiment of the present application further provides a display device 001, where the display device 001 provided in the embodiment of the present application may be a mobile phone, and in addition, the display device 001 provided in the embodiment of the present application may also be any display device with a display function, such as a computer and a television. The working process of the display device 001 provided by the embodiment of the application includes a plurality of touch phases T1, and the plurality of touch phases T1 includes at least one specific touch phase T10. In the specific touch stage T10, the display device is driven by the driving method provided in any of the above embodiments.
In the display device provided in the embodiment of the application, the touch hit rate of the local position is higher than that of other positions, and because the touch hit rate of only a part of positions of the touch area where the touch hit rate is high is needed and the touch hit rate of other positions is low, the high-frequency touch hit can be completed in a short time, thereby increasing the time required for display. In addition, in the specific implementation manner provided in the embodiment of the present application, the touch scanning time of the position with a high touch hit rate in the touch area is performed sequentially with the touch scanning time of the entire touch area, so that the implementation is easy.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.
Claims (9)
1. A driving method of a display device is characterized in that the driving method is used for driving the display device to complete a plurality of touch control stages, and the touch control stages comprise at least one specific touch control stage; in the specific touch stage, the touch area of the display device comprises at least one first type touch area and a second type touch area, and the touch hit rate of the first type touch area is greater than that of the second type touch area;
the specific touch control stage comprises at least one first touch control sub-stage and a second touch control sub-stage, and the first touch control sub-stage and the second touch control sub-stage are carried out in sequence; in the at least one first touch sub-stage, the first type touch area completes touch report points; and at the second sub-touch stage, the first type touch area and the second type touch area finish touch reporting.
2. The driving method according to claim 1, wherein the display device comprises a driving chip and a plurality of touch electrodes;
in the first touch sub-stage, the driving chip performs touch scanning on the touch electrodes in at least one first type of touch area to complete touch reporting; in the second touch sub-stage, the driving chip performs touch scanning on the touch electrodes in the first type of touch area and the second type of touch area to complete touch reporting;
and in the first touch sub-stage, the driving chip suspends scanning on the touch electrode according to a cutoff signal.
3. The driving method as claimed in claim 2, wherein in the first touch sub-stage, the driving chip starts processing the received touch signal of the touch electrode according to a cut-off signal.
4. The driving method according to claim 1, wherein the specific touch phase comprises at least two of the first touch sub-phases and one of the second touch sub-phases.
5. The driving method as claimed in claim 4, wherein the first touch sub-phase is performed before the second touch sub-phase in one of the specific touch phases.
6. The driving method as claimed in claim 1, wherein the touch areas of the display device include at least two first type touch areas, and all the first type touch areas complete touch pointing within one first touch sub-phase.
7. The driving method as claimed in claim 1, wherein the touch areas of the display device include at least two first-type touch areas, and the at least two first-type touch areas respectively complete touch pointing in different first touch sub-phases.
8. The driving method according to claim 7, wherein the at least two first-type touch areas are symmetrically distributed.
9. The display device is characterized in that the working process of the display device comprises a plurality of touch control stages, wherein the touch control stages comprise at least one specific touch control stage; in the specific touch stage, the display device is driven by the driving method according to any one of claims 1 to 8.
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| CN202110314808.7A CN112925450A (en) | 2021-03-24 | 2021-03-24 | Display device and driving method thereof |
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| CN202110314808.7A CN112925450A (en) | 2021-03-24 | 2021-03-24 | Display device and driving method thereof |
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