CN114489389B - Touch control driving assembly, execution method thereof and display device - Google Patents
Touch control driving assembly, execution method thereof and display device Download PDFInfo
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- CN114489389B CN114489389B CN202210209254.9A CN202210209254A CN114489389B CN 114489389 B CN114489389 B CN 114489389B CN 202210209254 A CN202210209254 A CN 202210209254A CN 114489389 B CN114489389 B CN 114489389B
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- 238000012545 processing Methods 0.000 claims abstract description 89
- 230000008569 process Effects 0.000 claims abstract description 35
- 238000004364 calculation method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 230000008859 change Effects 0.000 description 3
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- 238000013459 approach Methods 0.000 description 2
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- 230000009286 beneficial effect Effects 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
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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
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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Abstract
The invention provides a touch control driving assembly, an execution method thereof and a display device, and relates to the technical field of display. The driving chip provides a touch driving signal for the touch control plate and receives a touch sensing signal returned by the touch control plate; the micro-processing chip is electrically connected with the driving chip, processes touch sensing signals generated in at least one touch scanning period and forms touch report points; the touch pad completes one complete touch scanning in the touch scanning period. The invention provides a touch driving assembly, an execution method thereof and a display device, so as to improve touch point reporting rate.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a touch driving assembly, an execution method thereof, and a display device.
Background
A User Interface (UI) is configured to enable a user to communicate with various electronic devices, and thus to easily and conveniently control the electronic devices as they are needed. Examples of the user interface include a keypad, a keyboard, a mouse, an On Screen Display (OSD), and a remote controller having an infrared communication function or a Radio Frequency (RF) communication function. The evolving user interface technology improves the sensitivity and ease of operation of the user. Recently user interfaces have evolved to include touch UIs, voice recognition UIs, 3D UIs, and the like.
The touch UI is necessarily applicable to portable information devices. By forming a touch screen on the screen of the display device, a touch UI is realized. The touch screen may be implemented as a capacitive touch screen. When a user touches (or approaches) the touch sensor with his finger or a conductive material, the touch screen having the capacitive touch sensor senses a capacitance change (i.e., a charge change in the touch sensor) according to an inputted touch driving signal, thereby detecting a touch input.
Disclosure of Invention
The invention provides a touch driving assembly, an execution method thereof and a display device, so as to improve touch point reporting rate.
In a first aspect, an embodiment of the present invention provides a touch driving assembly, including:
the driving chip provides a touch driving signal for the touch control plate and receives a touch sensing signal returned by the touch control plate;
the micro-processing chip is electrically connected with the driving chip, processes touch sensing signals generated in at least one touch scanning period and forms touch report points;
the touch pad completes one complete touch scanning in the touch scanning period.
In a second aspect, an embodiment of the present invention provides a display device, including the touch driving assembly, the touch pad, and the display panel described in the first aspect.
In a third aspect, an embodiment of the present invention provides a method for executing a touch driving assembly, including:
the driving chip provides a touch driving signal for the touch control plate and receives a touch sensing signal returned by the touch control plate;
the driving chip transmits a touch sensing signal generated in at least one touch scanning period to the micro-processing chip, and the micro-processing chip forms a touch report point according to the touch sensing signal;
the touch pad completes one complete touch scanning in the touch scanning period.
The embodiment of the invention provides a touch control driving assembly, which comprises a driving chip and a micro-processing chip, wherein the driving chip acquires touch control sensing signals, the touch control sensing signals generated in at least one touch control scanning period are transmitted to the micro-processing chip, the micro-processing chip with higher processing speed executes calculation tasks, and touch control report points are formed according to the touch control sensing signals so as to determine specific touch control occurrence positions, so that the touch control report point rate is improved.
Drawings
Fig. 1 is a schematic top view of a touch pad according to an embodiment of the present invention;
fig. 2 is a schematic top view of another touch pad according to an embodiment of the present invention;
fig. 3 is a schematic top view of another touch pad according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a touch driving assembly according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another touch driving assembly according to an embodiment of the present invention;
fig. 6 is a touch timing chart according to an embodiment of the present invention;
fig. 7 is a timing diagram of another touch control according to an embodiment of the present invention;
FIG. 8 is a timing diagram of another touch control according to an embodiment of the present invention;
fig. 9 is a schematic top view of a display device according to an embodiment of the invention;
fig. 10 is a schematic top view of a display panel according to an embodiment of the present invention;
fig. 11 is a schematic top view of another display device according to an embodiment of the invention;
fig. 12 is a schematic top view of another display device according to an embodiment of the invention;
fig. 13 is a schematic top view of another display device according to an embodiment of the invention;
fig. 14 is a schematic diagram of a connection structure between a driving chip and a micro-processing chip according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
The touch pad is used for positioning the touch position of a human hand or a touch pen on the display panel by detecting the variation of an electric signal, for example, when a finger touches a certain point of the display panel, the capacitance value formed by the touch electrode at the touch point position is changed, so that the touch point can be positioned.
Fig. 1 is a schematic top view of a touch pad according to an embodiment of the present invention, referring to fig. 1, a touch pad 100 includes a plurality of touch electrode blocks 10 located on the same layer, the plurality of touch electrode blocks 10 are arranged in an array along a first direction and a second direction, each touch electrode block 10 is at least coupled to one touch electrode line 20, and the other end of the touch electrode line 20 is electrically connected to a driving chip (not shown in fig. 1).
Specifically, referring to fig. 1, a plurality of touch electrode blocks 10 are arranged in a transverse and longitudinal array and are insulated from each other, each touch electrode line 20 is electrically connected with one touch electrode block 10 and is insulated from other touch electrode blocks, each touch electrode block 10 respectively forms a capacitance with, for example, zero potential energy point, when a finger touches or approaches a touch pad, the capacitance value at the touch position increases, and further, when touch detection is performed, the position of the touch point can be determined by detecting the change of the corresponding capacitance value.
Fig. 2 is a schematic top view of another touch pad according to an embodiment of the invention, referring to fig. 2, a touch pad 100 includes a touch sensing electrode 11 and a touch driving electrode 12, the touch sensing electrode 11 is insulated from the touch driving electrode 12, a touch electrode line 20 includes a touch sensing electrode line 21 and a touch driving electrode line 22, the touch sensing electrode 11 is coupled with the touch sensing electrode line 21, and the touch driving electrode 12 is coupled with the touch driving electrode line 22.
Specifically, as shown in fig. 2, the touch sensing electrodes 11 may extend in a first direction and be arranged in a second direction, and the touch driving electrodes 12 may extend in the second direction and be arranged in the first direction, the first direction intersecting the second direction. The touch sensing electrode 11 is insulated from the touch driving electrode 12. One end of the touch sensing electrode line 21 may be electrically connected to the touch sensing electrode 11 through, for example, a via hole, and the other end of the touch sensing electrode line 21 is electrically connected to a driving chip (not shown in fig. 2); one end of the touch driving electrode line 22 may be electrically connected to the touch driving electrode 12 through, for example, a via hole, and the other end of the touch driving electrode line 22 is electrically connected to a driving chip (not shown in fig. 2). The touch driving electrode 12 may be used to receive a touch driving signal, and the touch sensing electrode 11 may be used to generate a touch sensing signal. Referring to fig. 2, a mutual capacitance (coupling capacitance) may be formed at a place where the touch sensing electrode 11 and the touch driving electrode 12 cross, when a human body touches the touch pad, a capacitance connected in series with the mutual capacitance is formed between a finger and the capacitive screen due to grounding of the human body, so that the capacitance detected by the touch sensing electrode 11 is reduced and a corresponding touch sensing signal may be generated, and thus a specific touch occurrence position may be determined through corresponding conversion.
Fig. 3 is a schematic top view of another touch pad according to an embodiment of the invention, referring to fig. 3, a touch pad 100 includes touch sensing electrodes 11 and touch driving electrodes 12, the touch sensing electrodes 11 may be arranged along a second direction and electrically connected along a first direction, and the touch driving electrodes 12 may be arranged along the first direction and electrically connected along the second direction. And at the crossing place of the touch sensing electrode 11 and the touch driving electrode 12, two adjacent touch sensing electrodes 11 are electrically connected through a bridge structure 13, and the touch sensing electrode 11 is insulated from the touch driving electrode 12. The touch electrode line 20 includes a touch sensing electrode line 21 and a touch driving electrode line 22, one end of the touch sensing electrode line 21 may be electrically connected to the touch sensing electrode 11 through, for example, a via hole, and the other end of the touch sensing electrode line 21 is electrically connected to a driving chip (not shown in fig. 3); one end of the touch driving electrode line 22 may be electrically connected to the touch driving electrode 12 through, for example, a via hole, and the other end of the touch driving electrode line 22 is electrically connected to a driving chip (not shown in fig. 3). The touch sensing electrode and the touch driving electrode are arranged on the same layer, so that the display panel is lighter and thinner.
In the known art, the driving chip may include a microprocessor (i.e., an MCU) that calculates coordinate values of the touch input based on the touch sensing signal, and then the microprocessor transmits the touch coordinate information to the main controller. That is, the driving chip obtains the touch sensing signal, performs the calculation task according to the touch sensing signal, and forms the touch report point according to the touch sensing signal to determine the specific touch occurrence position. However, since the driver chip is typically implemented as an Integrated Circuit (IC) package, the dot count rate of the driver chip is low.
Fig. 4 is a schematic structural diagram of a touch driving assembly according to an embodiment of the present invention, referring to fig. 4, the touch driving assembly is configured to provide a touch driving signal for a touch pad 100, receive a touch sensing signal returned by the touch pad 100, and form a touch report according to the touch sensing signal, that is, determine a specific touch occurrence position according to the operation of the touch sensing signal. The touch driving assembly includes a driving chip 210 and a micro-processing chip 220. The driving chip 210 provides a touch driving signal for the touch pad 100 and receives a touch sensing signal returned from the touch pad. The micro-processing chip 220 is electrically connected with the driving chip 210, the driving chip 210 transmits the touch sensing signal generated in at least one touch scanning period to the micro-processing chip 220, and the micro-processing chip 220 processes the touch sensing signal generated in at least one touch scanning period and forms a touch report. The touch pad 100 completes one complete touch scan within the touch scan period.
For example, in the touch pad 100 shown in fig. 1, in one touch scanning period, the touch pad 100 traverses and scans all the touch electrode blocks 10 and receives touch sensing signals induced by all the touch electrode blocks 10.
The embodiment of the invention provides a touch driving assembly, which comprises a driving chip 210 and a micro-processing chip 220, wherein the driving chip 210 acquires touch sensing signals, and transmits the touch sensing signals generated in at least one touch scanning period to the micro-processing chip 220, the micro-processing chip 220 with higher processing speed executes calculation tasks, and touch report points are formed according to the touch sensing signals so as to determine specific touch occurrence positions, thereby improving the touch report point rate.
In an embodiment, the driving chip 210 is configured to obtain the touch sensing signal, and not perform a computing task, and not form a touch report. The driving chip 210 transmits the touch sensing signals generated in all the touch scanning periods to the micro-processing chip 220, the micro-processing chip 220 with higher processing speed executes the calculation task, and the touch reporting points are formed according to the touch sensing signals.
In another embodiment, the driving chip 210 processes the touch sensing signal generated in at least one touch scanning period and forms a touch report. That is, the driving chip 210 is configured to obtain a touch sensing signal, form a touch report according to the touch sensing signal generated in a part of the touch scanning period, and transmit the touch sensing signal generated in another part of the touch scanning period to the micro-processing chip 220, where the micro-processing chip 220 forms the touch report. The driving chip 210 and the micro-processing chip 220 both execute computing tasks, and form touch report points according to the touch sensing signals.
Fig. 5 is a schematic structural diagram of another touch driving assembly according to an embodiment of the present invention, referring to fig. 5, a driving chip 210 includes a microprocessor 211, and the microprocessor 211 is used for executing a computing task and forming a touch report according to a touch sensing signal.
Optionally, the driving chip 210 and the micro-processing chip 220 form a touch report at the same time. Since the touch pad 100 completes one complete touch scan within the touch scan period for a short time, the time for forming a touch report according to the touch sensing signal generated in the touch scan period is long. The touch sensing signals generated by the multiple touch scanning periods acquired by the driving chip 210 may be processed by the driving chip 210 and the micro-processing chip 220, that is, the driving chip 210 and the micro-processing chip 220 form touch reporting points at the same time, for example, the time for forming the touch reporting points is shortened to about half of the original time, and the touch reporting point rate is improved to about twice of the original time.
In other embodiments, the driving chip 210 and the micro-processing chip 220 may also form a touch report point in a time-sharing manner. The driving chip 210 stores touch sensing signals generated in a plurality of touch scanning periods, and when the driving chip 210 forms a touch report point, the touch sensing signals are not transmitted to the micro-processing chip 220; when the driving chip 210 does not form a touch report, the touch sensing signal generated in part of the touch scanning period is transmitted to the micro-processing chip 220, and the micro-processing chip 220 forms the touch report.
Optionally, 2M touch scan periods are included in a frame, where M is a positive integer. The driving chip 210 and the micro-processing chip 220 both process touch sensing signals generated by M touch scanning periods. In the embodiment of the invention, the driving chip 210 and the micro-processing chip 220 both execute calculation tasks, and form touch report points according to touch sensing signals. The number of touch pads formed by the driving chip 210 and the micro-processing chip 220 is equal.
Fig. 6 is a touch timing chart according to an embodiment of the present invention, and referring to fig. 6, m=1. The frame includes 2 touch scan periods T. The driving chip 210 and the micro-processing chip 220 respectively process the touch sensing signals generated in 1 touch scanning period T.
Alternatively, referring to fig. 4 to 6, the two touch scan periods T include a first touch scan period T1 and a second touch scan period T2, and the first touch scan period T1 is located before the second touch scan period T2. The driving chip 210 processes the touch sensing signal generated in the first touch scanning period T1, and generates a touch report according to the touch sensing signal generated in the first touch scanning period T1. The micro-processing chip 220 processes the touch sensing signal generated in the second touch scanning period T2, and forms another touch report according to the touch sensing signal generated in the second touch scanning period T2. Therefore, in the embodiment of the invention, the time point of processing the touch sensing signal by the driving chip 210 with weaker computing power is earlier than the time point of processing the touch sensing signal by the micro-processing chip 220 with stronger computing power, so that the time for forming the touch reporting point in one frame by the touch driving component is reduced, and the touch reporting point rate is improved.
Alternatively, referring to fig. 4 to 6, the two touch scan periods T include a first touch scan period T1 and a second touch scan period T2, and the first touch scan period T1 is located before the second touch scan period T2. The driving chip 210 processes the touch sensing signal generated in the second touch scanning period T2, and forms a touch report according to the touch sensing signal generated in the second touch scanning period T2. The micro-processing chip 220 processes the touch sensing signal generated in the first touch scanning period T1, and forms another touch report according to the touch sensing signal generated in the first touch scanning period T1.
Optionally, a plurality of touch scan periods T are included in a frame. The number of touch scan periods T processed by the driving chip 210 is smaller than the number of touch scan periods T processed by the micro-processing chip 220. Since the calculation capability of the micro-processing chip 220 is stronger than that of the driving chip 210, the micro-processing chip 220 forms the touch report point faster than the driving chip 210, so that, adaptively, the micro-processing chip 220 processes the touch sensing signals formed by more touch scanning periods T, and the driving chip 210 processes the touch sensing signals formed by less touch scanning periods T, thereby reducing the time for the touch driving component to form the touch report point in one frame and improving the touch report point rate.
For example, the touch pad 100 completes one complete touch scan within the touch scan period T for 0.6ms, the microprocessor chip 220 forms a touch report for 1.2ms, and the driver chip 210 forms a touch report for 3.7ms. The micro-processing chip 220 forms a touch report point faster than the driving chip 210, and touch sensing signals formed by more touch scanning periods T can be processed by the micro-processing chip 220, and more calculation tasks are executed by the micro-processing chip 220; the touch sensing signal formed by less touch scanning periods T is processed by the driving chip 210, and less calculation tasks are executed by the driving chip 210.
Optionally, 2m+1 touch scanning periods T are included in a frame, where M is a positive integer. The driving chip 210 processes the touch sensing signals generated by the M touch scanning periods T, and the micro-processing chip 220 processes the touch sensing signals generated by the m+1 touch scanning periods T. In the embodiment of the invention, the driving chip 210 and the micro-processing chip 220 both execute calculation tasks, and form touch report points according to touch sensing signals. The number of touch points formed by the micro processing chip 220 is one more than the number of touch points formed by the driving chip 210.
Fig. 7 is another touch timing chart according to an embodiment of the present invention, and referring to fig. 4, fig. 5 and fig. 7, m=1. The frame includes 3 touch scan periods T. The driving chip 210 processes the touch sensing signal generated by 1 touch scanning period T, and the micro-processing chip 220 processes the touch sensing signal generated by 2 touch scanning periods T.
Referring to fig. 4, 5 and 7, the three touch scan periods T include a first touch scan period T1, a second touch scan period T2 and a third touch scan period T3. The first touch scanning period T1 is located before the second touch scanning period T2, and the second touch scanning period T2 is located before the third touch scanning period T3.
In an embodiment, the driving chip 210 processes the touch sensing signal generated in the first touch scanning period T1, and generates a touch report according to the touch sensing signal generated in the first touch scanning period T1. The micro-processing chip 220 processes the touch sensing signals generated in the second touch scanning period T2 and the third touch scanning period T3, forms a touch report according to the touch sensing signals generated in the second touch scanning period T2, and forms a touch report according to the touch sensing signals generated in the third touch scanning period T3.
In another embodiment, the driving chip 210 processes the touch sensing signal generated in the second touch scanning period T2, and generates a touch report according to the touch sensing signal generated in the second touch scanning period T2. The micro-processing chip 220 processes the touch sensing signals generated in the first touch scanning period T1 and the third touch scanning period T3, forms a touch report according to the touch sensing signals generated in the first touch scanning period T1, and forms a touch report according to the touch sensing signals generated in the third touch scanning period T3.
In another embodiment, the driving chip 210 processes the touch sensing signal generated in the third touch scanning period T3, and generates a touch report according to the touch sensing signal generated in the third touch scanning period T3. The micro-processing chip 220 processes the touch sensing signals generated in the first touch scanning period T1 and the second touch scanning period T2, forms a touch report according to the touch sensing signals generated in the first touch scanning period T1, and forms a touch report according to the touch sensing signals generated in the second touch scanning period T2.
Optionally, a plurality of touch scan periods T are included in a frame. The touch sensing signals generated by two adjacent touch scanning periods T are processed by the driving chip 210 and the micro-processing chip 220, respectively.
Fig. 8 is another touch timing chart provided in an embodiment of the present invention, and referring to fig. 4, 5 and 8, the touch timing chart includes 4 touch scan periods T in a frame. The 4 touch scan periods T include a first touch scan period T1, a second touch scan period T2, a third touch scan period T3, and a fourth touch scan period T4. The first touch scanning period T1 is located before the second touch scanning period T2, the second touch scanning period T2 is located before the third touch scanning period T3, and the third touch scanning period T3 is located before the fourth touch scanning period T4. The driving chip 210 processes the touch sensing signals generated in the first touch scanning period T1 and the third touch scanning period T3. The micro processing chip 220 processes the touch sensing signals generated in the second touch scanning period T2 and the fourth touch scanning period T4. The touch sensing signals generated by two adjacent touch scanning periods T are processed by the driving chip 210 and the micro-processing chip 220, respectively.
Referring to fig. 4 and 5, the touch driving assembly includes a micro-processing chip 220. In other embodiments, the touch driving component may further include at least two micro-processing chips 220, so as to further reduce the processing time of the touch report and improve the touch report rate.
Illustratively, the microprocessor chip 220 may be configured as a microprocessor. The difference from the microprocessor in the driving chip 210 is that, because it is not integrated inside the driving chip 210, it is not affected by the limited design space of the driving chip 210, and is not affected by other components and other design functions in the driving chip 210, and the microprocessor in the plug-in configuration can be set to have a stronger computing capability. Other design functions in the driver chip 210, such as a function for driving the display panel to display.
Illustratively, referring to fig. 6, a display stage may also be included within a frame, the display stage including a plurality of sub-display stages, each sub-display stage being capable of scanning one or more rows of sub-pixels, the display panel completing a complete display scan within a frame. The display sub-stage is set in a period of not executing touch operation in the touch scanning period T. In other embodiments, the display stage may be located outside the touch scan period T, that is, after the touch scan is performed, the display scan is performed; or after the display scanning is performed, performing touch scanning.
Fig. 9 is a schematic top view of a display device according to an embodiment of the invention, and referring to fig. 9, the display device includes a touch driving assembly, a touch pad 100 and a display panel 300 according to any of the embodiments. The display device adopts the touch control driving assembly, so the display device has the beneficial effects of the touch control driving assembly. It should be noted that the display device provided in the embodiment of the present invention may further include other circuits and devices for supporting the normal operation of the display device. The display device can be one of a mobile phone, a tablet personal computer, electronic paper and an electronic photo frame.
Fig. 10 is a schematic top view of a display panel according to an embodiment of the invention, and referring to fig. 9 and 10, a driving chip 210 is electrically connected to the display panel 300 for driving the display panel 300 to emit light for display. In the embodiment of the present invention, the driving chip 210 is used for driving both the touch pad 100 and the display panel 300, and the driving chip 210 integrates the touch driving function and the display driving function into one chip.
Alternatively, referring to fig. 9 and 10, the display panel 300 includes a substrate 310, a plurality of scan lines 331, and a plurality of data lines 332. The plurality of scan lines 331 extend in a first direction and are arranged in a second direction, and the plurality of data lines 332 extend in the second direction and are arranged in the first direction. The data line 332 extends from the display area 320 to the non-display area 330, and is electrically connected to the driving chip 210, and the driving chip 210 provides display data signals for the data line 332.
Optionally, referring to fig. 9, the display device further includes a flexible circuit board 400, and the flexible circuit board 400 is bonded to be electrically connected to the non-display region 330 of the display panel 300. The micro-processing chip 220 is disposed on the flexible circuit board 400 such that the micro-processing chip 220 does not occupy the space of the non-display area 330, reducing the frame of the display panel 300, and thus reducing the frame of the display device. On the other hand, the space on the flexible circuit board 400 is relatively large, and the micro-processing chip 220 is arranged on the flexible circuit board 400, so that the micro-processing chip 220 with larger volume is convenient to arrange, the computing capacity of the micro-processing chip 220 is improved, the time for the micro-processing chip 220 to acquire the touch point is reduced, and the touch point reporting rate is improved.
Illustratively, referring to fig. 9, the driver chip 210 is located on the substrate 310 and in the non-display region 330. Since the driving chip 210 is integrated on the substrate 310, the integration of the display panel 300 and the driving chip 210 is improved.
Fig. 11 is a schematic top view of another display device according to an embodiment of the present invention, referring to fig. 11, the driving chip 210 and the micro-processing chip 220 are both located on the flexible circuit board 400, and the driving chip 210 and the micro-processing chip 220 do not occupy the space of the non-display area 330, so that the frame of the display panel 300 is reduced, and the frame of the display device is reduced.
Fig. 12 is a schematic top view of another display device according to an embodiment of the invention, and referring to fig. 12, the display device further includes a main controller 500, and the microprocessor chip 220 is electrically connected to the main controller 500. The touch report points formed by the microprocessor chip 220 are directly reported to the main controller 500. The main controller 500 executes an application program related to the touch position according to the touch report point.
In an embodiment, the driving chip 210 and the micro-processing chip 220 both form a touch report point, and the driving chip 210 transmits the touch report point to the main controller 500 through the micro-processing chip 220, so as to complete the process of reporting the touch report point to the main controller 500.
Fig. 13 is a schematic top view of another display device according to an embodiment of the invention, and referring to fig. 13, the display device further includes a main controller 500, and the driving chip 210 and the micro-processing chip 220 are electrically connected to the main controller. In the embodiment of the present invention, the touch report points formed by the micro-processing chip 220 are directly reported to the main controller 500, and the touch report points formed by the driving chip 210 are directly reported to the main controller 500, and are not transferred to the main controller 500 through the micro-processing chip 220.
Fig. 14 is a schematic diagram of a connection structure between a driving chip and a micro-processing chip according to an embodiment of the present invention, and referring to fig. 9, 11-14, the driving chip 210 and the micro-processing chip 220 are electrically connected by a connection line L. The connection line L may include a first sub-connection line L1, a second sub-connection line L2, a third sub-connection line L3, a fourth sub-connection line L4, a fifth sub-connection line L5, a sixth sub-connection line L6, and a seventh sub-connection line L7. The first sub-link L1 is used for transmitting clock control signals, the second sub-link L2 and the third sub-link L3 are used for transmitting report data signals, the fourth sub-link L4 is used for transmitting chip select signals, for determining data validity, the fifth sub-link L5 is used for transmitting reset signals, the sixth sub-link L6 is used for transmitting interrupt signals, and the seventh sub-link L7 is used for transmitting ground signals.
Based on the same inventive concept, an embodiment of the present invention provides a method for executing a touch driving assembly, and referring to fig. 4 to 13 in combination, the method includes:
step one, the driving chip 210 provides a touch driving signal for the touch pad 100 and receives a touch sensing signal returned by the touch pad 100.
The touch pad 100 completes one complete touch scan within the touch scan period T.
Step two, the driving chip 210 transmits the touch sensing signal generated by at least one touch scanning period T to the micro-processing chip 220, and the micro-processing chip 220 forms a touch report according to the touch sensing signal.
The embodiment of the invention provides an execution method based on the touch driving component in the above embodiment, in which the driving chip 210 obtains a touch sensing signal, and transmits the touch sensing signal generated by at least one touch scanning period T to the micro-processing chip 220, the micro-processing chip 220 with a faster processing speed executes a calculation task, and a touch report point is formed according to the touch sensing signal, so as to determine a specific touch occurrence position, thereby improving the touch report point rate.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, and that various obvious changes, rearrangements, combinations, and substitutions can be made by those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (13)
1. A touch drive assembly, comprising:
the driving chip provides a touch driving signal for the touch control plate and receives a touch sensing signal returned by the touch control plate;
the micro-processing chip is electrically connected with the driving chip, processes touch sensing signals generated in at least one touch scanning period and forms touch report points;
the touch control panel completes one complete touch control scanning in the touch control scanning period;
the driving chip processes the touch sensing signal generated in at least one touch scanning period and forms a touch report point.
2. The touch drive assembly of claim 1, wherein the drive chip and the microprocessor chip form a touch report simultaneously.
3. The touch driving assembly according to claim 1, wherein one frame includes 2M touch scanning periods, M being a positive integer;
and the driving chip and the micro-processing chip both process touch sensing signals generated by M touch scanning periods.
4. The touch drive assembly of claim 3, wherein M = 1;
the two touch scanning periods comprise a first touch scanning period and a second touch scanning period, and the first touch scanning period is positioned before the second touch scanning period;
the driving chip processes the touch sensing signal generated in the first touch scanning period, and the micro-processing chip processes the touch sensing signal generated in the second touch scanning period.
5. The touch drive assembly of claim 3, wherein M = 1;
the two touch scanning periods comprise a first touch scanning period and a second touch scanning period, and the first touch scanning period is positioned before the second touch scanning period;
the driving chip processes the touch sensing signal generated in the second touch scanning period, and the micro-processing chip processes the touch sensing signal generated in the first touch scanning period.
6. The touch drive assembly of claim 1, comprising a plurality of the touch scan periods within a frame;
the number of the touch scanning periods processed by the driving chip is smaller than that of the touch scanning periods processed by the micro-processing chip.
7. The touch driving assembly according to claim 6, wherein one frame includes 2m+1 touch scanning periods, M being a positive integer;
the driving chip processes touch sensing signals generated by M touch scanning periods, and the micro-processing chip processes touch sensing signals generated by M+1 touch scanning periods.
8. The touch drive assembly of claim 1, comprising a plurality of the touch scan periods within a frame;
and generating touch sensing signals by two adjacent touch scanning periods, wherein the touch sensing signals are respectively processed by the driving chip and the micro-processing chip.
9. A display device, comprising the touch driving assembly, the touch pad, and the display panel according to any one of claims 1 to 8.
10. The display device of claim 9, wherein a driver chip is electrically connected to the display panel for driving the display panel to emit light for display.
11. The display device of claim 9, further comprising a flexible circuit board bonded electrically to the display panel, the microprocessor chip disposed on the flexible circuit board.
12. The display device of claim 9, further comprising a main controller, the microprocessor chip being electrically connected to the main controller; or,
the driving chip and the micro-processing chip are electrically connected with the main controller.
13. The execution method of the touch control driving component is characterized by comprising the following steps of:
the driving chip provides a touch driving signal for the touch control plate and receives a touch sensing signal returned by the touch control plate;
the driving chip transmits a touch sensing signal generated in at least one touch scanning period to the micro-processing chip, and the micro-processing chip forms a touch report point according to the touch sensing signal;
the touch control panel completes one complete touch control scanning in the touch control scanning period; the driving chip processes the touch sensing signal generated in at least one touch scanning period and forms a touch report point.
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| CN114489389A (en) | 2022-05-13 |
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