WO2022193694A1 - 触控显示驱动装置、方法及触控显示装置 - Google Patents

触控显示驱动装置、方法及触控显示装置 Download PDF

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Publication number
WO2022193694A1
WO2022193694A1 PCT/CN2021/130276 CN2021130276W WO2022193694A1 WO 2022193694 A1 WO2022193694 A1 WO 2022193694A1 CN 2021130276 W CN2021130276 W CN 2021130276W WO 2022193694 A1 WO2022193694 A1 WO 2022193694A1
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Prior art keywords
data
read
touch
writing
reading
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PCT/CN2021/130276
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English (en)
French (fr)
Inventor
李树伟
张光均
罗鸿强
李辰浩
王强
金贤善
Original Assignee
京东方科技集团股份有限公司
成都京东方光电科技有限公司
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Application filed by 京东方科技集团股份有限公司, 成都京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US17/909,445 priority Critical patent/US20240192805A1/en
Publication of WO2022193694A1 publication Critical patent/WO2022193694A1/zh

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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
    • G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
    • G06F3/04184—Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • 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

Definitions

  • the embodiments of the present disclosure relate to, but are not limited to, the field of display technologies, and in particular, relate to a touch display driving device, a method, and a touch display device.
  • touch display devices have been widely used.
  • the touch panel and the display panel in the touch display device are independently controlled by two chips.
  • TDDI Touch and Display Driver Integration, touch and display driver integration
  • TDDI products are widely used due to their advantages of high touch sensitivity and thinness.
  • the current TDDI chip simply integrates the function of the touch driver chip and the function of the display driver chip into a single chip. During the working operation, the function of the touch driver chip and the function of the display driver chip are separated into two independent chips. This will lead to larger device size and higher power consumption.
  • an embodiment of the present disclosure provides a touch display driving device, the touch display driving device is connected to a touch display panel; the touch display driving device includes: a controller and a control device connected to the controller. connected memory, where,
  • the memory is configured to store display data and touch data
  • the controller is configured to perform a first read and write operation for reading and writing display data to the memory when the touch display panel is in a display working period; or, when the touch display panel is in a touch During the control working period, a second read and write operation for reading and writing touch data is performed on the memory.
  • an embodiment of the present disclosure provides a touch display device, comprising: a touch display panel and a touch display driving device connected to the touch display panel, wherein the touch display driving device is the above-mentioned touch display driving device The touch display driving device in the embodiment.
  • an embodiment of the present disclosure provides a driving method, which is applied to the touch display driving device in the above-mentioned embodiments.
  • the method includes: when the touch display panel is in a display working period, in the touch display driving device The controller performs a first read and write operation for reading and writing display data to the memory in the touch display drive device; or, when the touch display panel is in the touch operation period, the controller performs the A second read and write operation for reading and writing touch data is performed.
  • 1A is a schematic structural diagram of a touch display device
  • FIG. 1B is a schematic structural diagram of another touch display device
  • FIG. 2 is a schematic structural diagram of a touch display driving device in an exemplary embodiment of the present disclosure
  • FIG. 3 is another schematic structural diagram of a touch display driving device in an exemplary embodiment of the present disclosure
  • FIG. 4 is another structural schematic diagram of a touch display driving device in an exemplary embodiment of the present disclosure.
  • FIG. 5 is a timing diagram of a touch display driving device in an exemplary embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of still another touch display driving device in an exemplary embodiment of the present disclosure.
  • FIG. 7 is another timing diagram of a touch display driving device according to an exemplary embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a touch display device in an exemplary embodiment of the disclosure.
  • FIG. 9 is a schematic flowchart of a driving method in an exemplary embodiment of the present disclosure.
  • the terms “installed”, “connected” and “connected” should be construed in a broad sense. For example, it may be a fixed connection, or a detachable connection, or an integral connection; it may be a mechanical connection, or an electrical connection; it may be a direct connection, or an indirect connection through an intermediate piece, or an internal communication between two elements.
  • installed should be construed in a broad sense. For example, it may be a fixed connection, or a detachable connection, or an integral connection; it may be a mechanical connection, or an electrical connection; it may be a direct connection, or an indirect connection through an intermediate piece, or an internal communication between two elements.
  • the touch display panel in the touch display device can be independently controlled by two chips.
  • the touch display panel refers to a display panel with touch sensing capability.
  • the touch display panel may include: a touch panel (Touch Panel, TP) 11 and a display panel 12, the touch panel 11 can be controlled by a touch driver chip (Touch IC, TIC) 13, and the display panel 12 can be controlled by a display driver chip ( Display Driver IC, DDI) 14 control.
  • the storage functions are respectively concentrated in the display driver chip 14 and the touch driver chip 13.
  • the second Ram 141 of the display driver chip 14 is used to store display data
  • the first Ram 131 of the touch driver chip 13 is used to store the display data.
  • Touch data for example, storing the touch sensing signals collected by the touch electrodes in the touch panel
  • the functions of Ram are located in two ICs respectively.
  • the functions of the display driver chip and the touch driver chip can be integrated into one TDDI chip 15 to drive the touch display panel.
  • the touch panel 11 and the display panel 12 can be controlled by one TDDI chip 15 .
  • the second Ram 141 in the display driver chip and the first Ram 131 in the touch driver chip are simply packaged in the TDDI chip 15 , and in the working operation, in the TDDI chip 15 Both the second Ram 141 and the first Ram 131 work independently and do not achieve the shared effect, which will lead to a larger device size and a certain loss of power consumption, which affects the development and application of TDDI chips.
  • Embodiments of the present disclosure provide a touch display driving device, which can be applied to drive a touch display panel.
  • a touch display driving device which can be applied to a touch display device, and the touch display driving device can be connected to a touch display panel in the touch display device.
  • the touch display driving device 20 may include: a controller 21 and a memory 22 connected to the controller 21 , wherein the memory 22 is configured to store display data and touch data; the controller 21 is configured to store display data and touch data; It is configured to perform a first read and write operation for reading and writing display data to the memory 22 when the touch display panel 10 is in the display working period; A second read and write operation for reading and writing touch data.
  • the first read and write operations for reading and writing display data may include: a read operation for reading display data from a memory, or a read operation for writing display data into the memory.
  • the second read and write operations for reading and writing touch data may include: a read operation for reading touch data from the memory, or a read operation for writing touch data into the memory.
  • the touch display driving device uses the controller to adjust the reading and writing of the memory during operation, so that the display data and the touch data can share the memory. Therefore, by sharing the memory, the storage space of the memory can be optimized, so that the amount of processed data can be maximized within the same processing time. Moreover, by sharing the memory, the size of the touch display driving device can be reduced, the space required for the device can be saved, and the development and application of the device can be facilitated. In addition, by sharing the memory, part of the power consumption can be effectively reduced, the utilization rate of the storage space can be improved, and the power consumption of the device can also be reduced.
  • the touch display driving device 20 may further include: a first timing controller 23 and a second timing controller 24 respectively connected to the controller 21 .
  • the controller 23 and the second timing controller 24 are respectively connected to the touch display panel 10; wherein, the first timing controller 23 is configured to output the first timing controller 21 to the controller 21 when the touch display panel 10 is in the display working period signal; the second timing controller 24 is configured to output a second signal to the controller 21 when the touch display panel 10 is in the touch operation period; the controller 21 is configured to output a second signal in response to the first timing controller 23
  • the first signal of the memory 22 is used to read and write the display data; or the controller 21 is configured to respond to the second signal output by the second timing controller 24.
  • the frequency of the second signal is the same as the frequency of the first signal.
  • the memory can be shared and used at the same frequency, and the same frequency can achieve touch control. Memory sharing in the display driver is optimized.
  • the first timing controller can output a first signal to the controller to initiate a first read and write operation for reading and writing display data; the controller responds to the first signal, Read one frame of display data from the memory, and send one frame of display data to the first timing controller; after receiving one frame of display data sent by the controller, the first timing controller can generate and match the one frame of display data The corresponding signal is used to drive the display panel to display.
  • the touch display driving device 20 may further include: a source electrode A driving unit (ie, a data driver) 25, a gate driving unit (ie, a scan driver) 26 and a light-emitting driver (not shown in the figure), the display panel 12 may include: a pixel array (not shown in the figure), and the pixel array may include A plurality of scan signal lines (S1 to Sm), a plurality of data signal lines (D1 to Dn), a plurality of light emission signal lines (E1 to Eo), and a plurality of pixels Pxij.
  • a source electrode A driving unit ie, a data driver
  • a gate driving unit ie, a scan driver
  • a light-emitting driver not shown in the figure
  • the display panel 12 may include: a pixel array (not shown in the figure), and the pixel array may include A plurality of scan signal lines (S1 to Sm), a plurality of data signal lines (D1 to Dn), a plurality of light emission signal lines
  • the first timing controller 23 may provide grayscale values and control signals suitable for the specifications of the source driving unit (ie, the data driver) 25 to the source driving unit (ie, the data driver) 25, and may A clock signal, a scan start signal, etc. of the specifications of the driving unit (ie scan driver) 26 are supplied to the gate driving unit (ie, scan driver) 26, and a clock signal, a light emission stop signal, etc. suitable for the specifications of the light-emitting driver can be supplied to the gate driving unit (ie, scan driver) 26.
  • the source driving unit (ie, the data driver) 25 may generate data voltages to be supplied to the data signal lines D1, D2, D3, . . .
  • the source driving unit (ie, the data driver) 25 may sample grayscale values with a clock signal, and apply data voltages corresponding to the grayscale values to the data signal lines D1 to Dn in pixel row units, where n may be a natural number .
  • the gate driving unit (ie, scan driver) 26 may generate scan signals to be supplied to the scan signal lines S1 , S2 , S3 , . . . and Sm by receiving a clock signal, a scan start signal, and the like from the first timing controller 23 .
  • the gate driving unit (ie, scan driver) 26 may sequentially supply scan signals having on-level pulses to the scan signal lines S1 to Sm.
  • the gate driving unit (ie, the scan driver) 26 may be constructed in the form of a shift register, and may sequentially transmit a scan start signal provided in the form of an on-level pulse to the next under the control of a clock signal.
  • the scanning signal is generated in the way of a first-level circuit, and m can be a natural number.
  • the light emission driver may generate light emission signals to be supplied to the light emission signal lines E1 , E2 , E3 , . . . and Eo by receiving a clock signal, a light emission stop signal, and the like from the first timing controller 23 .
  • the light-emitting driver may sequentially supply light-emitting signals having off-level pulses to the light-emitting signal lines E1 to Eo.
  • the light-emitting driver may be constructed in the form of a shift register, and may generate the light-emitting signal in such a manner that a light-emitting stop signal provided in the form of an off-level pulse is sequentially transmitted to the next-stage circuit under the control of a clock signal, o Can be a natural number.
  • the pixel array may include a plurality of pixels PXij. Each pixel PXij may be connected to a corresponding data signal line, a corresponding scan signal line, and a corresponding light-emitting signal line, and i and j may be natural numbers.
  • the pixel PXij may refer to a pixel in which a transistor is connected to the i-th scan signal line and to the j-th data signal line. In this way, the display panel 12 is driven to display.
  • the second timing controller can provide the touch drive signal to the touch panel, and receive the touch sensing signal returned by the touch panel; after receiving the touch sensing signal , the second timing controller can process the touch sensing signal, output the second signal to the controller, and output the touch data corresponding to the touch sensing signal to the controller, so as to initiate the first process for reading and writing the touch data.
  • the controller stores the touch data corresponding to the touch sensing signal in the memory in response to the second signal.
  • the touch display driving device 20 may further include: a touch driver (TP Tx) 27 and a data reader (TP Rx) 28, the touch panel 11 may include: a plurality of touch electrodes (sensor pads) arranged in an array.
  • the touch electrodes may be sensing electrodes for self-capacitive touch sensing, or driving electrodes for mutual capacitive touch sensing.
  • the second timing controller 24 can provide a clock signal suitable for the touch driver (TP Tx) 27 to the touch driver (TP Tx) 27 to read the touch signals generated by the touch electrodes on the touch panel 11 .
  • the control sensing signal can provide touch data corresponding to the touch sensing signal generated by the received sensing electrodes to the controller 21 .
  • the touch driver (TP Tx) 27 may utilize the clock signal received from the second timing controller 24 to generate touch driving signals to be provided to the touch electrodes on the touch panel 11 .
  • the data reader (TP Rx) 28 can read the touch sensing signal generated by the touch electrodes on the touch panel 11 and provide the touch sensing signal to the second timing controller 24 so that the second timing controller 24
  • the touch data to be stored in the memory 22 is generated according to the received touch sensing signal, so that the controller 21 can use the touch data received from the second timing controller 24 to store the touch data in the memory 22 to identify whether the user has touched the touch Control the display panel 10 for touch and the position where the user touches.
  • the clock cycles of the first signal and the second signal may each include: a first time segment and a second time segment, wherein the second time segment is after the first time segment; the controller, which is It is configured to perform a first read and write operation for reading and writing display data on the memory based on the signal corresponding to the first time segment in the first signal; or, based on the signal corresponding to the second time segment in the second signal, perform a first read and write operation on the memory A second read and write operation for reading and writing touch data is performed.
  • the touch display driving device when used to drive the touch display device, for each frame of image, in the same frequency, the first read and write operations for reading and writing display data are performed first, and then the first read and write operations for reading and writing display data are performed.
  • the second read and write operations of the control data can achieve a better user experience.
  • the clock period T of the first signal and the second signal can be divided into M sub-time segments as an example, the first time segment can be the first X sub-time segments among the M sub-time segments, and the second time segment can be M The last Y sub-time segments among the sub-time segments, where X and Y are both positive integers greater than or equal to 1.
  • the duration of the second time segment may be the same as the duration of the first time segment.
  • the touch display driving device can allocate the same display duration and touch duration to each frame of image. In this way, a balanced display effect and touch effect can be achieved.
  • the duration of the second time segment may be different from the duration of the first time segment.
  • the duration of the first time segment may be greater than the duration of the second time segment.
  • the duration of the first time segment and the duration of the second time segment may be set according to the amount of data to be read and written by the touch display driving device. For example, when the data volume of the touch data to be read and written by the touch display driving device is relatively large (that is, the data volume of the data to be read and written corresponding to the first read and write operation for reading and writing display data is smaller than that for reading and writing touch data) When the data volume of the data to be read and written corresponding to the second read/write operation of the control data), the duration of the second time segment can be set to be greater than the duration of the first time segment.
  • the touch display driving device can allocate each frame of image Therefore, when the touch display driving device is used to drive the touch display device, a better touch effect can be achieved.
  • the data amount of the touch data to be read and written by the touch display driving device is relatively small (that is, the data of the data to be read and written corresponding to the first read and write operations used to read and write the display data)
  • the duration of the first time segment can be set to be greater than the duration of the second time segment. In this way, the touch display driving device A longer display duration can be allocated to each frame of image, so that when the touch display driving device is used to drive the touch display device, a better display effect can be achieved.
  • the touch display driving device waits When the amount of read and write display data is relatively large, you can set: the duration of the first time segment is 0.5T, and the duration of the second time segment is 0.3T.
  • the controller 21 may include: a first read-write module 212 and a first arbitration module 211 , wherein the first arbitration module 211 is configured to be used for reading and writing When the first read and write operations for reading and writing the display data conflict with the second reading and writing operations for reading and writing touch data, the first reading and writing operations for reading and writing display data and the second reading and writing operations for reading and writing touch data are given.
  • the read-write operation determines different priorities; the first read-write module 212 is configured to perform the first read-write operation for reading and writing display data and the first read-write operation for reading and writing the memory 22 according to the priority order from high to low The second read and write operation of touch data.
  • the memory can be shared and used in the same frequency, there may be conflicts between reading and writing display data and touch data at the same time (for example, such as As shown in FIG. 4 and FIG. 5 , when the first signal output by the first timing controller 23 to the controller 21 for initiating the first read/write operation and the first signal output by the second timing controller 24 to the controller 21 for initiating the first read/write operation When the second signals of the two read and write operations arrive at the same time, there will be a conflict between the first read and write operations used to read and write display data and the second read and write operations used to read and write touch data).
  • the first arbitration module added in the device can determine different priorities for the first read and write operations used to read and write display data and the second read and write operations used to read and write touch data. Conflict for read and write operations. Furthermore, the sharing effect of the memory is better.
  • the priority of the first read-write operation for reading and writing display data is higher than the priority of the second read-write operation for reading and writing touch data.
  • the first arbitration module may set the first read/write operation for reading and writing display data and the first read/write operation for read/write touch display according to the amount of data to be read/written by the touch display drive device.
  • the priority of the second read and write operations of the control data For example, when the data volume of the touch data to be read and written by the touch display driving device is relatively large (that is, the data volume of the data to be read and written corresponding to the first read and write operation for reading and writing display data is smaller than that for reading and writing touch data) When the data volume of the data to be read and written corresponding to the second read and write operations of the control data), as shown in FIG.
  • the first arbitration module can set the priority of the first read and write operations for reading and writing display data to be relatively high (That is, the priority of the first read-write operation for reading and writing display data is higher than the priority of the second read-write operation for reading and writing touch data). In this way, a better display effect can be achieved. For another example, when the data volume of the touch data to be read and written by the touch display driving device is relatively small (that is, the data volume of the data to be read and written corresponding to the first read and write operation for reading and writing display data is larger than that for reading and writing the display data).
  • the first arbitration module can set the priority of the second read/write operation for reading and writing the touch data to be relatively high (that is, for The priority of the first read and write operations for reading and writing display data is lower than the priority of the second read and write operations for reading and writing touch data), so that a better touch effect can be achieved.
  • the touch display driving device 20 may further include: a communication module 29, wherein the communication module 29 is configured to perform data communication with the host 30; a controller 21, can also be configured to read the first data from the data stored in the memory 22 in response to the first request message for reading the first data received from the host 30 through the communication module 29; The data is sent to the host 30 through the communication module 29; or, in response to the second request message for writing the second data received from the host 30 through the communication module 29, the data received through the communication module 29 from the host 30 will be sent to the host 30.
  • the second data is stored in the memory 22 .
  • the first data may include touch data.
  • the second data may include display data.
  • the host may be integrated into the wearable device, or be an external computer that can be wired or wirelessly connected to the touch display panel equipment.
  • the host can be used to render the image and send the rendered image to the touch display driving device, so that the touch display driving device can drive the touch display panel to display based on the rendered image.
  • the controller 21 may include: a second read-write module 214 and a second arbitration module 213 , wherein the second arbitration module 213 is configured to be used for reading and writing At least one of the first read and write operations for display data and the second read and write operations for reading and writing touch data and the first request message for reading the first data and the second reading and writing operations for writing the second data.
  • the second read-write module is configured to follow the priority order from high to low , perform at least one read and write operation on the memory and respond to any request message.
  • the first timing controller when the first timing controller outputs the first signal to the controller (initiating a first read and write operation for reading and writing display data, for example, for requesting to read a frame of display data),
  • the second signal output by the second timing controller to the controller (initiating a second read and write operation for reading and writing touch data, for example, for requesting to write touch data corresponding to one frame of display data) and the host through communication
  • the third signal output by the module to the controller initiating a second request message for writing the second data, for example, for requesting to write the next frame of display data
  • the arbitration module 213 can assign different priorities to the first read and write operations for reading and writing display data, the second read and write operations for reading and writing touch data, and the second request message for writing second data. class. For example, as shown in FIG. 5 , the second arbitration module may set: the priority of the first read and write operations for reading and writing display data may be higher than the second request message for writing the second data, and the priority for writing The priority of the second request message for writing the second data may be higher than the priority of the second request message for writing the second data. In this way, a better display effect can be achieved.
  • the memory may include random access memory.
  • the touch display driving device may be implemented as a TDDI chip.
  • FIG. 8 is a schematic structural diagram of a touch display device in an exemplary embodiment of the present disclosure.
  • the touch display device 80 may include: a touch display panel 81 and one or more of the above exemplary embodiments.
  • the touch display driving device 82 wherein the touch display driving device 82 is connected to the touch display panel 81 .
  • the touch display panel has a display area A and a non-display area C located beside the display area A (for example, one side, two sides or a peripheral side of the display area A).
  • the non-display area C Including binding region B.
  • the touch display panel may include: a plurality of touch electrodes arranged in an array.
  • the touch display driving device is disposed in the binding area B of the touch display panel.
  • the touch display driving device is electrically connected to a plurality of touch electrodes through a plurality of touch signal lines, and can transmit touch driving to a plurality of touch electrodes included in the touch display panel through the plurality of touch signal lines Signal.
  • the touch display device may be a wearable device.
  • space optimization can be achieved by sharing the memory in the touch display driving device, and in the same time, the processing data is maximized, so that the size of the touch display driving device is reduced, and space is saved, especially for wearable devices.
  • the usable space is relatively small, which further highlights the advantages of the touch display driving device in the embodiments of the present disclosure.
  • implementing memory sharing in the touch display driving device can effectively reduce part of power consumption and reduce product power consumption.
  • the wearable device may include, but is not limited to, a smart helmet or smart glasses.
  • the wearable device may be a virtual reality (Virtual Reality, VR) display device.
  • VR Virtual Reality
  • the wearable device may include: a host.
  • the host may be integrated in the wearable device, or be an external computer device that can be wired or wirelessly connected to the touch display panel.
  • the host can be used to render the image and send the rendered image to the touch display driving device, so that the touch display driving device can drive the touch display panel to display.
  • the host can be a personal computer (Personal Computer, PC), or, when the host and the touch display device are physically co-located, the host can be An Application Processor (AP) in a touch display device.
  • PC Personal Computer
  • AP Application Processor
  • the touch display device may include, but is not limited to, an OLED touch display device or a liquid crystal touch display (Liquid Crystal Display, LCD) device or the like.
  • OLED touch display device or a liquid crystal touch display (Liquid Crystal Display, LCD) device or the like.
  • LCD Liquid Crystal Display
  • the touch display device in the embodiment of the present disclosure may include other necessary components and structures in addition to the above-mentioned structures such as the touch display panel and the touch display driving device, for example, a gate driving circuit (GOA) , Source Driver circuit, etc., those skilled in the art can design and supplement accordingly according to the type of the touch display device, which will not be repeated here.
  • a gate driving circuit GAA
  • Source Driver circuit etc.
  • the touch display device may be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, or a navigator.
  • a display function such as a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, or a navigator.
  • the embodiment of the present disclosure does not limit the type of the display device.
  • Other essential components of the touch display device should be understood by those of ordinary skill in the art, and will not be repeated here, nor should it be regarded as a limitation of the present disclosure.
  • Embodiments of the present disclosure also provide a driving method, which can be applied to the touch display driving device in one or more of the above-mentioned exemplary embodiments.
  • the touch display driving apparatus may include: a controller and a memory connected to the controller, wherein the memory is configured to store display data and touch data.
  • FIG. 9 is a schematic flowchart of a driving method in an exemplary embodiment of the present disclosure. As shown in FIG. 9 , the driving method may include:
  • Step 901 when the touch display panel is in the display working period, the controller in the touch display driving device performs a first read and write operation for reading and writing display data to the memory in the touch display driving device;
  • Step 902 When the touch display panel is in the touch operation period, the controller performs a second read and write operation on the memory for reading and writing touch data.
  • the touch display driving device uses the controller to control the reading and writing of the memory during operation, so that the display data and the touch data can share the memory. Therefore, by sharing the memory, the storage space of the memory can be optimized, so that the amount of processed data can be maximized within the same processing time. Moreover, by sharing the memory, the size of the touch display driving device can be reduced, the space required for the device can be saved, and the development and application of the device can be facilitated. In addition, by sharing the memory, part of the power consumption can be effectively reduced, the utilization rate of the storage space can be improved, and the power consumption of the device can also be reduced.
  • the touch display driving apparatus may further include: a first timing controller and a second timing controller respectively connected to the controller.
  • the above step 901 may include: the controller, in response to the first signal output by the first timing controller, performs a first read and write operation on the memory for reading and writing display data.
  • the above step 902 may include: the controller, in response to the second signal output by the second timing controller, performs a second read and write operation on the memory for reading and writing touch data, wherein the frequency of the second signal is the same as the frequency of the first signal. the same frequency.
  • the first timing controller can output a first signal to the controller to initiate a first read and write operation for reading and writing display data; the controller responds to the first signal, Read one frame of display data from the memory, and send one frame of display data to the first timing controller; after receiving one frame of display data sent by the controller, the first timing controller can generate and match the one frame of display data The corresponding timing signal is used to drive the display panel to display.
  • the second timing controller can provide the touch drive signal to the touch panel, and receive the touch sensing signal returned by the touch panel; after receiving the touch sensing signal , the second timing controller can process the touch sensing signal, output the second signal to the controller, and output the touch data corresponding to the touch sensing signal to the controller, so as to initiate the first process for reading and writing the touch data.
  • the controller processes the touch sensing signal in response to the second signal, and stores the touch data corresponding to the touch sensing signal in the memory.
  • the driving method may further include:
  • Step 903 When the first signal output by the first timing controller to the controller and the second signal output by the second timing controller to the controller arrive at the same time, the controller performs a first read and write operation for reading and writing display data. Determine a different priority from the second read and write operations used to read and write touch data;
  • Step 904 The controller executes steps 901 and 902 in order of priority from high to low.
  • the controller executes 901 first, 902 is executed again.
  • the controller executes 902 first, and then executes 901 .
  • the controller determines the priority of the first read-write operation and the second read-write operation, and then executes them in the order of priority from high to low, which can avoid the first timing control.
  • the controller and the second timing controller simultaneously initiate a conflict of read and write operations on the memory. Furthermore, the sharing effect of the memory is better.
  • the touch display driving apparatus may further include: a communication module, wherein the communication module is configured to perform data communication with the host. Then, the driving method may further include:
  • Step 905 the controller reads the first data from the data stored in the memory in response to the first request message for reading the first data received from the host through the communication module;
  • Step 906 The controller sends the first data to the host through the communication module.
  • the first data may include touch data.
  • the touch display driving apparatus may further include: a communication module, wherein the communication module is configured to perform data communication with the host. Then, the driving method may further include:
  • Step 907 The controller stores the second data received from the host through the communication module in the memory in response to the second request message for writing the second data received from the host through the communication module.
  • the second data may include display data.
  • the host can render the image to be displayed and send the rendered image (ie the second data) to the communication module through a second request message for writing the second data;
  • the communication module sends the third signal to the controller (ie, the signal corresponding to the second request message for writing the second data), and sends the rendered image (ie, the second data) from the host to the controller;
  • the controller stores the second data in the memory , so that the touch display driving device can drive the touch display panel to display based on the rendered image (ie, the second data).
  • the touch display driving apparatus may further include: a communication module, wherein the communication module is configured to perform data communication with the host. Then, before step 901, step 902 or step 907, the driving method may further include:
  • Step 903 When the first signal output from the first timing controller to the controller (initiating a first read and write operation for reading and writing display data) and the second signal output by the second timing controller to the controller (initiating a first read and write operation for reading and writing display data) The second read and write operation of reading and writing touch data) and the third signal output by the host to the controller through the communication module (the signal corresponding to the second request message for writing the second data to initiate writing of the second data) operation) when the three arrive at the same time, the controller gives the first read and write operation for reading and writing display data, the second read and write operation for reading and writing touch data, and the second request for writing second data
  • the three messages are assigned different priorities;
  • Step 904 The controller executes Step 901 , Step 902 and Step 907 in order of priority from high to low.
  • step 901 when the priority of the first read-write operation for reading and writing display data is higher than the priority of the second request message for writing the second data, and the priority of the second request message for writing the second data
  • step 901 may be performed first, then step 907 may be performed, and then step 902 may be performed.
  • the controller determines the priority, and then executes in the order of priority from high to low, so as to avoid the conflict of simultaneous read and write operations on the memory. Furthermore, the sharing effect of the memory is better.

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Abstract

一种触控显示驱动装置、方法及触控显示装置。该触控显示驱动装置与触控显示面板连接；该触控显示驱动装置包括：控制器和与所述控制器连接的存储器，其中，所述存储器，被配置为存储显示数据和触控数据；所述控制器，被配置为当所述触控显示面板处于显示工作时段时，对所述存储器进行用于读写显示数据的第一读写操作；或者，当所述触控显示面板处于触控工作时段时，对所述存储器进行用于读写触控数据的第二读写操作。

Description

触控显示驱动装置、方法及触控显示装置
本申请要求于2021年03月19日提交中国专利局、申请号为202110298446.7、发明名称为“触控显示驱动装置、方法及触控显示装置”的中国专利申请的优先权，其内容应理解为通过引用的方式并入本申请中。
技术领域
本公开实施例涉及但不限于显示技术领域，尤其涉及一种触控显示驱动装置、方法及触控显示装置。
背景技术
随着显示技术的不断发展，触控显示装置得到了广泛的应用，通常，触控显示装置中的触控面板和显示面板，分别由两块芯片独立控制，为了提高触控显示装置的集成度，TDDI(Touch and Display Driver Integration，触控与显示驱动集成)芯片应运而生。
TDDI产品，由于具有触控灵敏度较高、轻薄等优点，因而得到广泛地应用。然而，目前的TDDI芯片只是简单地将触控驱动芯片的功能和显示驱动芯片的功能集成在单一的芯片中，在工作运行里，触控驱动芯片的功能和显示驱动芯片的功能在两个独立的存储器，如Ram(Random Access Memory，随机存取存储器)中工作，这样会导致器件尺寸较大，功耗较高。
发明内容
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
第一方面，本公开实施例提供了一种触控显示驱动装置，所述触控显示驱动装置与触控显示面板连接；所述触控显示驱动装置，包括：控制器和与所述控制器连接的存储器，其中，
所述存储器，被配置为存储显示数据和触控数据；
所述控制器，被配置为当所述触控显示面板处于显示工作时段时，对所 述存储器进行用于读写显示数据的第一读写操作；或者，当所述触控显示面板处于触控工作时段时，对所述存储器进行用于读写触控数据的第二读写操作。
第二方面，本公开实施例提供了一种触控显示装置，包括：触控显示面板以及与所述触控显示面板连接的触控显示驱动装置，其中，所述触控显示驱动装置为上述实施例中的触控显示驱动装置。
第三方面，本公开实施例提供了一种驱动方法，应用于上述实施例中的触控显示驱动装置，所述方法包括：当触控显示面板处于显示工作时段时，触控显示驱动装置中的控制器对触控显示驱动装置中的存储器进行用于读写显示数据的第一读写操作；或者，当所述触控显示面板处于触控工作时段时，所述控制器对所述存储器进行用于读写触控数据的第二读写操作。
本公开的其它特征和优点将在随后的说明书中阐述，并且，部分地从说明书中变得显而易见，或者通过实施本公开而了解。本公开的其他优点可通过在说明书以及附图中所描述的方案来实现和获得。
在阅读并理解了附图和详细描述后，可以明白其他方面。
附图说明
附图用来提供对本公开技术方案的理解，并且构成说明书的一部分，与本公开的实施例一起用于解释本公开的技术方案，并不构成对本公开技术方案的限制。附图中每个部件的形状和大小不反映真实比例，目的只是示意说明本公开内容。
图1A为一种触控显示装置的结构示意图；
图1B为另一种触控显示装置的结构示意图；
图2为本公开示例性实施例中的触控显示驱动装置的一种结构示意图；
图3为本公开示例性实施例中的触控显示驱动装置的另一种结构示意图；
图4为本公开示例性实施例中的触控显示驱动装置的又一种结构示意图；
图5为本公开示例性实施例中的触控显示驱动装置的一种时序示意图；
图6为本公开示例性实施例中的触控显示驱动装置的再一种结构示意图；
图7为本公开示例性实施例中触控显示驱动装置的另一种时序示意图；
图8为本公开示例性实施例中的触控显示装置的结构示意图；
图9为本公开示例性实施例中的驱动方法的流程示意图。
具体实施方式
本文描述了多个实施例，但是该描述是示例性的，而不是限制性的，在本文所描述的实施例包含的范围内可以有更多的实施例和实现方案。尽管在附图中示出了许多可能的特征组合，并在具体实施方式中进行了讨论，但是所公开的特征的许多其它组合方式也是可能的。除非特意加以限制的情况以外，任何实施例的任何特征或元件可以与任何其它实施例中的任何其他特征或元件结合使用，或可以替代任何其它实施例中的任何其他特征或元件。
在描述具有代表性的实施例时，说明书可能已经将方法和/或过程呈现为特定的步骤序列。然而，在该方法或过程不依赖于本文步骤的特定顺序的程度上，该方法或过程不应限于的特定顺序的步骤。如本领域普通技术人员将理解的，其它的步骤顺序也是可能的。因此，说明书中阐述的步骤的特定顺序不应被解释为对权利要求的限制。此外，针对该方法和/或过程的权利要求不应限于按照所写顺序执行它们的步骤，本领域技术人员可以容易地理解，这些顺序可以变化，并且仍然保持在本公开实施例的精神和范围内。
在附图中，有时为了明确起见，夸大表示了每个构成要素的大小、层的厚度或区域。因此，本公开的一个方式并不一定限定于该尺寸，附图中每个部件的形状和大小不反映真实比例。此外，附图示意性地示出了理想的例子，本公开的一个方式不局限于附图所示的形状或数值等。
本说明书中的“第一”、“第二”、“第三”等序数词是为了避免构成要素的混同而设置，而不是为了在数量方面上进行限定的。
在本说明书中，为了方便起见，使用“中部”、“上”、“下”、“前”、“后”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示方位或位置关系的词句以参照附图说明构成要素的位置关系，仅是为了便于描 述本说明书和简化描述，而不是指示或暗示所指的装置或元件具有特定的方位、以特定的方位构造和操作，因此不能理解为对本公开的限制。构成要素的位置关系根据描述每个构成要素的方向适当地改变。因此，不局限于在说明书中说明的词句，根据情况可以适当地更换。
在本说明书中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解。例如，可以是固定连接，或可拆卸连接，或一体地连接；可以是机械连接，或电连接；可以是直接相连，或通过中间件间接相连，或两个元件内部的连通。对于本领域的普通技术人员而言，可以实际情况理解上述术语在本公开中的含义。
如图1A所示，触控显示装置中的触控显示面板可由两块芯片独立控制，这里，触控显示面板是指具有触控感测能力的显示面板。其中，触控显示面板可以包括：触控面板(Touch Panel，TP)11和显示面板12，触控面板11可由触控驱动芯片(Touch IC，TIC)13控制，显示面板12可由显示驱动芯片(Display Driver IC，DDI)14控制。这里，存储功能分别被集中到显示驱动芯片14和触控驱动芯片13中，例如，显示驱动芯片14的第二Ram 141用于存储显示数据，触控驱动芯片13的第一Ram 131用于存储触控数据(如对触控面板中触控电极采集到的触控感应信号进行存储)，可见，在图1A所示方案中，Ram的功能分别位于两颗IC中。
如图1B所示，为了提高触控显示装置的集成度，显示驱动芯片和触控驱动芯片的功能可集成在一个TDDI芯片15中以驱动触控显示面板，此时，触控显示装置中的触控面板11和显示面板12可由一个TDDI芯片15控制。但是，图1B所示方案中，只是简单的将显示驱动芯片中的第二Ram 141和触控驱动芯片中的第一Ram 131封装在TDDI芯片15中，在工作运行里，在TDDI芯片15中第二Ram 141和第一Ram 131都是独立工作，未达到共用效果，这样会导致器件尺寸较大，功耗也有一定损失，影响了TDDI芯片发展和应用。
本公开实施例提供一种触控显示驱动装置，可应用于驱动触控显示面板。例如，可应用于触控显示装置中，该触控显示驱动装置可与触控显示装置中的触控显示面板连接。
如图2所示，该触控显示驱动装置20可以包括：控制器21和与控制器21连接的存储器22，其中，存储器22，被配置为存储显示数据和触控数据；控制器21，被配置为当触控显示面板10处于显示工作时段时，对存储器22进行用于读写显示数据的第一读写操作；或者，当触控显示面板10处于触控工作时段时，对存储器22进行用于读写触控数据的第二读写操作。
这里，用于读写显示数据的第一读写操作可以包括：用于从存储器中读取显示数据的读取操作，或者，用于向存储器中写入显示数据的读取操作。用于读写触控数据的第二读写操作可以包括：用于从存储器中读取触控数据的读取操作，或者，用于向存储器中写入触控数据的读取操作。
如此，本公开实施例所提供的触控显示驱动装置在工作运行中，使用控制器来调节存储器的读写，使得显示数据和触控数据可以共用存储器。从而，通过共用存储器，可以达到存储器的存储空间最优化，这样，在同样地处理时间里，处理数据量可以达到最大。而且，通过共用存储器，可以使得触控显示驱动装置的尺寸会变小，能够节约器件所需空间，利于器件发展和应用。并且，通过共用存储器，可以有效地减少一部分功耗，提高存储空间的利用率，使得器件的功耗也会降低。
在一种示例性实施例中，如图2所示，该触控显示驱动装置20还可以包括：分别与控制器21连接的第一时序控制器23和第二时序控制器24，第一时序控制器23和第二时序控制器24分别与触控显示面板10连接；其中，第一时序控制器23，被配置为当触控显示面板10处于显示工作时段时，向控制器21输出第一信号；第二时序控制器24，被配置为当触控显示面板10处于触控工作时段时，向控制器21输出第二信号；控制器21，被配置为响应于第一时序控制器23输出的第一信号，对存储器22进行用于读写显示数据的第一读写操作；或者，控制器21，被配置为响应于第二时序控制器24输出的第二信号，对存储器22进行用于读写触控数据的第二读写操作，其中，第二信号的频率与第一信号的频率相同。如此，本公开实施例所提供的触控显示驱动装置，由于第二信号的频率与第一信号的频率是相同的，从而，使得存储器可以共用在同一频率里使用，同样的频率可以达到触控显示驱动装置中的存储器共用最优化。
例如，当触控显示面板处于显示工作时段时，第一时序控制器可以向控制器输出第一信号，以发起用于读写显示数据的第一读写操作；控制器响应于第一信号，从存储器中读取一帧显示数据，并将一帧显示数据发送给第一时序控制器；第一时序控制器在接收到控制器发送的一帧显示数据后，可以生成与该一帧显示数据对应的信号，以驱动显示面板进行显示。
在一种示例性实施例中，以触控显示面板为OLED(Organic Light-Emitting Diode，有机发光二极管)显示面板为例，如图3所示，触控显示驱动装置20还可以包括：源极驱动单元(即数据驱动器)25、栅极驱动单元(即扫描驱动器)26和发光驱动器(图中未示出)，显示面板12可以包括：像素阵列(图中未示出)，像素阵列可以包括多个扫描信号线(S1到Sm)、多个数据信号线(D1到Dn)、多个发光信号线(E1到Eo)和多个像素Pxij。例如，第一时序控制器23可以将适合于源极驱动单元(即数据驱动器)25的规格的灰度值和控制信号提供到源极驱动单元(即数据驱动器)25，可以将适合于栅极驱动单元(即扫描驱动器)26的规格的时钟信号、扫描起始信号等提供到栅极驱动单元(即扫描驱动器)26，可以将适合于发光驱动器的规格的时钟信号、发光停止信号等提供到发光驱动器。源极驱动单元(即数据驱动器)25可以利用从第一时序控制器23接收的灰度值和控制信号来产生将提供到数据信号线D1、D2、D3、……和Dn的数据电压。例如，源极驱动单元(即数据驱动器)25可以利用时钟信号对灰度值进行采样，并且以像素行为单位将与灰度值对应的数据电压施加到数据信号线D1至Dn，n可以是自然数。栅极驱动单元(即扫描驱动器)26可以通过从第一时序控制器23接收时钟信号、扫描起始信号等来产生将提供到扫描信号线S1、S2、S3、……和Sm的扫描信号。例如，栅极驱动单元(即扫描驱动器)26可以将具有导通电平脉冲的扫描信号顺序地提供到扫描信号线S1至Sm。例如，栅极驱动单元(即扫描驱动器)26可以被构造为移位寄存器的形式，并且可以以在时钟信号的控制下顺序地将以导通电平脉冲形式提供的扫描起始信号传输到下一级电路的方式产生扫描信号，m可以是自然数。发光驱动器可以通过从第一时序控制器23接收时钟信号、发光停止信号等来产生将提供到发光信号线E1、E2、E3、……和Eo的发光信号。例如，发光驱动器可以将具有截止电平脉冲的发光信号顺序地提供到发光信号线E1至Eo。例如，发光 驱动器可以被构造为移位寄存器的形式，并且可以以在时钟信号的控制下顺序地将以截止电平脉冲形式提供的发光停止信号传输到下一级电路的方式产生发光信号，o可以是自然数。像素阵列可以包括多个像素PXij。每个像素PXij可以连接到对应的数据信号线、对应的扫描信号线和对应的发光信号线，i和j可以是自然数。像素PXij可以指其中晶体管连接到第i扫描信号线且连接到第j数据信号线的像素。如此，以实现驱动显示面板12进行显示。
例如，当触控显示面板处于触控工作时段时，第二时序控制器可以向触控面板提供触控驱动信号，并接收触控面板返回的触控感应信号；在接收到触控感应信号后，第二时序控制器可以对触控感应信号进行处理，向控制器输出第二信号，将与触控感应信号对应的触控数据输出至控制器，以发起用于读写触控数据的第二读写操作；控制器响应于第二信号，将与触控感应信号对应的触控数据存入存储器中。
在一种示例性实施例中，以触控显示面板为OLED显示面板为例，如图3所示，触控显示驱动装置20还可以包括：触控驱动器(TP Tx)27和数据读取器(TP Rx)28，触控面板11可以包括：阵列排布的多个触控电极(sensor pad)。例如，触控电极可以是用于自容式(self-capacitive)触控感测的感测电极，或是用于互容式(mutual capacitive)触控感测的驱动电极。例如，第二时序控制器24可以将适合于触控驱动器(TP Tx)27的时钟信号提供到触控驱动器(TP Tx)27，以读取触控面板11上的触控电极所产生的触控感应信号，可以将接收到的感应电极所产生的触控感应信号对应的触控数据提供到控制器21。触控驱动器(TP Tx)27可以利用从第二时序控制器24接收的时钟信号来产生将提供到触控面板11上的触控电极的触控驱动信号。数据读取器(TP Rx)28可以读取触控面板11上的触控电极所产生的触控感应信号，将触控感应信号提供到第二时序控制器24，以便第二时序控制器24根据接收的触控感应信号来产生将存入到存储器22的触控数据，进而以便控制器21利用从第二时序控制器24接收的触控数据存入到存储器22，以识别用户是否对触控显示面板10进行触控，以及用户触控的位置。
在一种示例性实施例中，第一信号和第二信号的时钟周期均可以包括：第一时间片段和第二时间片段，其中，第二时间片段在第一时间片段之后； 控制器，被配置为基于第一信号中与第一时间片段对应的信号，对存储器进行用于读写显示数据的第一读写操作；或者，基于第二信号中与第二时间片段对应的信号，对存储器进行用于读写触控数据的第二读写操作。如此，通过该触控显示驱动装置来驱动触控显示装置时，针对每帧图像，在同一个频率中，先进行用于读写显示数据的第一读写操作，后进行用于读写触控数据的第二读写操作，可以实现较佳的用户体验。
例如，以第一信号和第二信号的时钟周期T可以划分为：M个子时间片段为例，第一时间片段可以为M个子时间片段中的前X个子时间片段，第二时间片段可以为M个子时间片段中的后Y个子时间片段，其中，X和Y均为大于或等于1的正整数。
在一种示例性实施例中，第二时间片段的时长与第一时间片段的时长可以相同。如此，触控显示驱动装置可以为每一帧图像分配相同的显示时长和触控时长。这样，可以实现均衡的显示效果和触控效果。
在一种示例性实施例中，第二时间片段的时长与第一时间片段的时长可以不相同。例如，第一时间片段的时长可以大于第二时间片段的时长。
在一种示例性实施例中，可以根据触控显示驱动装置待读写的数据的数据量的多少来设置第一时间片段的时长和第二时间片段的时长。例如，当触控显示驱动装置待读写的触控数据的数据量相对较大(即用于读写显示数据的第一读写操作对应的待读写数据的数据量小于用于读写触控数据的第二读写操作对应的待读写数据的数据量)时，可以设置第二时间片段的时长大于第一时间片段的时长，如此，触控显示驱动装置可以为每一帧图像分配了较长的触控时长，从而，通过该触控显示驱动装置来驱动触控显示装置时，可以实现较佳的触控效果。又例如，如图4所示，当触控显示驱动装置待读写的触控数据的数据量相对较小(即用于读写显示数据的第一读写操作对应的待读写数据的数据量大于用于读写触控数据的第二读写操作对应的待读写数据的数据量)时，可以设置第一时间片段的时长大于第二时间片段的时长，如此，触控显示驱动装置可以为每一帧图像分配了较长的显示时长，从而，通过该触控显示驱动装置来驱动触控显示装置时，可以实现较佳的显示效果。
例如，以第一信号和第二信号的时钟周期为T为例，如图4所示，当触 控显示驱动装置待读写的触控数据的数据量相对较小，触控显示驱动装置待读写的显示数据的数据量相对较大时，可以设置：第一时间片段的时长为0.5T，第二时间片段的时长为0.3T。
在一种示例性实施例中，如图4所示，控制器21可以包括：第一读写模块212和第一仲裁模块211，其中，第一仲裁模块211，被配置为当用于读写显示数据的第一读写操作与用于读写触控数据的第二读写操作发生冲突时，给用于读写显示数据的第一读写操作与用于读写触控数据的第二读写操作确定不同的优先级；第一读写模块212，被配置为按照从高到低的优先级顺序，对存储器22进行用于读写显示数据的第一读写操作与用于读写触控数据的第二读写操作。如此，本公开实施例所提供的触控显示驱动装置在工作运行中，由于存储器可以共用在同一频率里使用，可能会出现同时读写显示数据和触控数据而产生冲突的情况(例如，如图4和图5所示，当第一时序控制器23向控制器21输出的用于发起第一读写操作的第一信号与第二时序控制器24向控制器21输出的用于发起第二读写操作的第二信号同时到来时，会出现用于读写显示数据的第一读写操作与用于读写触控数据的第二读写操作发生冲突的情况)，这样，通过控制器内增加的第一仲裁模块，可以给用于读写显示数据的第一读写操作与用于读写触控数据的第二读写操作确定不同的优先级，从而，可以避免对存储器同时进行读写操作的冲突。进而，使得存储器的共用效果更佳。
在一种示例性实施例中，用于读写显示数据的第一读写操作的优先级高于用于读写触控数据的第二读写操作的优先级。
在一种示例性实施例中，第一仲裁模块可以根据触控显示驱动装置待读写的数据的数据量的多少来设置用于读写显示数据的第一读写操作与用于读写触控数据的第二读写操作的优先级。例如，当触控显示驱动装置待读写的触控数据的数据量相对较大(即用于读写显示数据的第一读写操作对应的待读写数据的数据量小于用于读写触控数据的第二读写操作对应的待读写数据的数据量)时，如图5所示，第一仲裁模块可以设置用于读写显示数据的第一读写操作的优先级相对较高(即用于读写显示数据的第一读写操作的优先级高于用于读写触控数据的第二读写操作的优先级)，如此，可以实现较佳 的显示效果。又例如，当触控显示驱动装置待读写的触控数据的数据量相对较小(即用于读写显示数据的第一读写操作对应的待读写数据的数据量大于用于读写触控数据的第二读写操作对应的待读写数据的数据量)时，第一仲裁模块可以设置用于读写触控数据的第二读写操作的优先级相对较高(即用于读写显示数据的第一读写操作的优先级低于用于读写触控数据的第二读写操作的优先级)，如此，可以实现较佳的触控效果。
在一种示例性实施例中，如图3和图6所示，触控显示驱动装置20还可以包括：通信模块29，其中，通信模块29，被配置为与主机30进行数据通信；控制器21，还可以被配置为响应于通过通信模块29接收到的来自主机30的用于读取第一数据的第一请求消息，从存储器22所存储的数据中读取第一数据；将第一数据通过通信模块29发送至主机30；或者，响应于通过通信模块29接收到的来自主机30的用于写入第二数据的第二请求消息，将通过通信模块29接收到的来自主机30的第二数据存入存储器22中。
在一种示例性实施例中，第一数据可以包括触控数据。
在一种示例性实施例中，第二数据可以包括显示数据。
在一种示例性实施例中，以触控显示面板为可穿戴设备中的显示面板为例，主机可以集成于可穿戴设备中，或者是能够与触控显示面板有线或无线连接的外连计算机设备。例如，该主机可以用于对图像进行渲染并将渲染后的图像发送至触控显示驱动装置，以使触控显示驱动装置可以基于该渲染后的图像驱动触控显示面板进行显示。
在一种示例性实施例中，如图6所示，控制器21可以包括：第二读写模块214和第二仲裁模块213，其中，第二仲裁模块213，被配置为当用于读写显示数据的第一读写操作和用于读写触控数据的第二读写操作中的至少一个读写操作与用于读取第一数据的第一请求消息和用于写入第二数据的第二请求消息中的任意一个请求消息发生冲突时，给至少一个读写操作与任意一个请求消息确定不同的优先级；第二读写模块，被配置为按照从高到低的优先级顺序，对存储器进行至少一个读写操作和响应于任意一个请求消息。
例如，如图7所示，当第一时序控制器向控制器输出的第一信号(发起用于读写显示数据的第一读写操作，例如，用于请求读取一帧显示数据)、 第二时序控制器向控制器输出的第二信号(发起用于读写触控数据的第二读写操作，例如，用于请求写入一帧显示数据对应的触控数据)以及主机通过通讯模块向控制器输出的第三信号(发起用于写入第二数据的第二请求消息，例如，用于请求写入下一帧显示数据)三者同时到达时，就会出现用于读写显示数据的第一读写操作、用于读写触控数据的第二读写操作和用于写入第二数据的第二请求消息三者出现冲突，此时，控制器21中的第二仲裁模块213可以给用于读写显示数据的第一读写操作、用于读写触控数据的第二读写操作和用于写入第二数据的第二请求消息三者分配不同的优先级。例如，如图5所示，第二仲裁模块可以设置：用于读写显示数据的第一读写操作的优先级可以高于用于写入第二数据的第二请求消息，并且用于写入第二数据的第二请求消息的优先级可以高于用于写入第二数据的第二请求消息的优先级。如此，可以实现较佳的显示效果。
在一种示例性实施例中，存储器可以包括：随机存取存储器。
在一种示例性实施例中，该触控显示驱动装置可以实现为一个TDDI芯片。
本公开实施例还提供一种触控显示装置。图8为本公开示例性实施例中的触控显示装置的结构示意图，如图8所示，触控显示装置80可以包括：触控显示面板81以及上述一个或多个示例性实施例中的触控显示驱动装置82，其中，触控显示驱动装置82与触控显示面板81连接。
在一种示例性实施例中，触控显示面板具有显示区A和位于显示区A旁侧(例如为显示区A的一侧、两侧或者周侧)的非显示区C，非显示区C包括绑定区B。其中，显示区A和绑定区B之间可以具有间隙。例如，触控显示面板可以包括：阵列排布的多个触控电极。例如，触控显示驱动装置设置在触控显示面板的绑定区B内。例如，触控显示驱动装置通过多条触控信号线与多个触控电极的电连接，可以通过该多条触控信号线向触控显示面板所包括的多个触控电极传输触控驱动信号。
在一种示例性实施例中，触控显示装置可以为可穿戴设备。如此，通过在触控显示驱动设备中存储器共用可以达到空间最优化，在同样地时间里， 处理数据达到最大，使得触控显示驱动设备的尺寸变小，节约了空间，特别是可穿戴设备的可利用空间比较小，更突出了本公开实施例中的触控显示驱动设备的优势，而且，在触控显示驱动设备中实现存储器共用，可以有效的减少一部分功耗，降低产品的功耗。
例如，该可穿戴设备可以包括但不限于智能头盔或智能眼镜等。例如，该可穿戴设备可以为虚拟现实(Virtual Reality，VR)显示设备。
在一种示例性实施例中，可穿戴设备可以包括：主机。例如，以触控显示面板位于可穿戴设备中为例，主机可以集成于可穿戴设备中，或者是能够与触控显示面板有线或无线连接的外连计算机设备。例如，该主机可以用于对图像进行渲染并将渲染后的图像发送至触控显示驱动装置，以使触控显示驱动装置可以驱动触控显示面板进行显示。例如，当主机与触控显示装置，在物理上分设时，该主机可以为个人计算机(Personal Computer，PC)，或者，当主机与触控显示装置，在物理上合设时，该主机可以为触控显示装置中的应用处理器(Application Processor，AP)。
在一种示例性实施例中，该触控显示装置可以包括但不限于为OLED触控显示装置或者液晶触控显示(Liquid Crystal Display，LCD)装置等。
此外，本公开实施例中的触控显示装置除了可以包括上述的触控显示面板和触控显示驱动装置等结构以外，还可以包括其它必要的组成和结构，例如，栅极驱动电路(GOA)、源极驱动(Source Driver)电路等，本领域技术人员可根据该触控显示装置的种类进行相应地设计和补充，在此不再赘述。
在一种示例性实施例中，该触控显示装置可以为：手机、平板电脑、电视机、显示器、笔记本电脑、数码相框或者导航仪等任何具有显示功能的产品或部件。这里，本公开实施例对显示装置的类型不做限定。对于该触控显示装置的其它必不可少的组成部分均为本领域的普通技术人员应该理解具有的，在此不做赘述，也不应作为对本公开的限制。
对于本公开触控显示装置实施例中未披露的技术细节，本领域的技术人员请参照本公开触控显示驱动装置实施例中的描述而理解，这里不再赘述。
本公开实施例还提供一种驱动方法，可应用于上述一个或多个示例性实施例中的触控显示驱动装置。
在一种示例性实施例中，该触控显示驱动装置可以包括：控制器和与控制器连接的存储器，其中，存储器，被配置为存储显示数据和触控数据。图9为本公开示例性实施例中的驱动方法的流程示意图，如图9所示，该驱动方法可以包括：
步骤901：当触控显示面板处于显示工作时段时，触控显示驱动装置中的控制器对触控显示驱动装置中的存储器进行用于读写显示数据的第一读写操作；
步骤902：当触控显示面板处于触控工作时段时，控制器对存储器进行用于读写触控数据的第二读写操作。
如此，本公开实施例提供的触控显示驱动装置在工作运行中，使用控制器来控制存储器的读写，使得显示数据和触控数据可以共用存储器。从而，通过共用存储器，可以达到存储器的存储空间最优化，这样，在同样地处理时间里，处理数据量可以达到最大。而且，通过共用存储器，使得触控显示驱动装置的尺寸会变小，能够节约器件所需空间，利于器件发展和应用。并且，通过共用存储器，可以有效地减少一部分功耗，提高存储空间的利用率，使得器件的功耗也会降低。
在一种示例性实施例中，该触控显示驱动装置还可以包括：分别与控制器连接的第一时序控制器和第二时序控制器。那么，上述步骤901可以包括：控制器响应于第一时序控制器输出的第一信号，对存储器进行用于读写显示数据的第一读写操作。上述步骤902可以包括：控制器响应于第二时序控制器输出的第二信号，对存储器进行用于读写触控数据的第二读写操作，其中，第二信号的频率与第一信号的频率相同。
例如，当触控显示面板处于显示工作时段时，第一时序控制器可以向控制器输出第一信号，以发起用于读写显示数据的第一读写操作；控制器响应于第一信号，从存储器中读取一帧显示数据，并将一帧显示数据发送给第一时序控制器；第一时序控制器在接收到控制器发送的一帧显示数据后，可以生成与该一帧显示数据对应的时序信号，以驱动显示面板进行显示。
例如，当触控显示面板处于触控工作时段时，第二时序控制器可以向触控面板提供触控驱动信号，并接收触控面板返回的触控感应信号；在接收到触控感应信号后，第二时序控制器可以对触控感应信号进行处理，向控制器输出第二信号，将与触控感应信号对应的触控数据输出至控制器，以发起用于读写触控数据的第二读写操作；控制器响应于第二信号，对触控感应信号进行处理，将与触控感应信号对应的触控数据存入存储器中。
在一种示例性实施例中，在步骤901之前，该驱动方法还可以包括：
步骤903：当第一时序控制器向控制器输出的第一信号与第二时序控制器向控制器输出的第二信号同时到来时，控制器给用于读写显示数据的第一读写操作与用于读写触控数据的第二读写操作确定不同的优先级；
步骤904：控制器按照从高到低的优先级顺序，执行步骤901和902。
例如，如图5所示，当用于读写显示数据的第一读写操作的优先级高于用于读写触控数据的第二读写操作的优先级，则控制器先执行901，再执行902。又例如，当用于读写显示数据的第一读写操作的优先级低于用于读写触控数据的第二读写操作的优先级，则控制器先执行902，再执行901。如此，在存储器共用在同一频率里使用时，通过控制器来确定第一读写操作和第二读写操作的优先级，再按照从高到低的优先级顺序执行，可以避免第一时序控制器和第二时序控制器对存储器同时发起读写操作的冲突。进而，使得存储器的共用效果更佳。
在一种示例性实施例中，触控显示驱动装置还可以包括：通信模块，其中，通信模块，被配置为与主机进行数据通信。那么，该驱动方法还可以包括：
步骤905：控制器响应于通过通信模块接收到的来自主机的用于读取第一数据的第一请求消息，从存储器所存储的数据中读取第一数据；
步骤906：控制器将第一数据通过通信模块发送至主机。
在一种示例性实施例中，第一数据可以包括触控数据。
在一种示例性实施例中，触控显示驱动装置还可以包括：通信模块，其中，通信模块，被配置为与主机进行数据通信。那么，该驱动方法还可以包 括：
步骤907：控制器响应于通过通信模块接收到的来自主机的用于写入第二数据的第二请求消息，将通过通信模块接收到的来自主机的第二数据存入存储器中。
在一种示例性实施例中，第二数据可以包括显示数据。
例如，该主机可对待显示的图像进行渲染并将渲染后的图像(即第二数据)通过用于写入第二数据的第二请求消息发送至通信模块；通信模块向控制器发送第三信号(即与用于写入第二数据的第二请求消息对应的信号)，并将来自主机的渲染后的图像(即第二数据)发送至控制器；控制器将该第二数据存入存储器中，以使触控显示驱动装置可以基于该渲染后的图像(即第二数据)驱动触控显示面板进行显示。
在一种示例性实施例中，触控显示驱动装置还可以包括：通信模块，其中，通信模块，被配置为与主机进行数据通信。那么，在步骤901、步骤902或步骤907之前，该驱动方法还可以包括：
步骤903：当第一时序控制器向控制器输出的第一信号(发起用于读写显示数据的第一读写操作)、第二时序控制器向控制器输出的第二信号(发起用于读写触控数据的第二读写操作)以及主机通过通讯模块向控制器输出的第三信号(用于写入第二数据的第二请求消息所对应的信号，以发起写入第二数据的操作)三者同时到达时，控制器给用于读写显示数据的第一读写操作、用于读写触控数据的第二读写操作和用于写入第二数据的第二请求消息三者分配不同的优先级；
步骤904：控制器按照从高到低的优先级顺序，执行步骤901、步骤902和步骤907。
例如，如图5所示，当用于读写显示数据的第一读写操作的优先级高于用于写入第二数据的第二请求消息的优先级，并且用于写入第二数据的第二请求消息的优先级高于用于写入第二数据的第二请求消息的优先级时，可以先执行步骤901，再执行步骤907，然后执行步骤902。如此，在存储器共用在同一频率里使用时，通过控制器来确定优先级，再按照从高到低的优先级顺序执行，可以避免对存储器同时进行读写操作的冲突。进而，使得存储器 的共用效果更佳。
当然，除了上述一个或多个示例性实施例中所示意的优先级设定方式外，还可以为其它方式，可由本领域技术人员根据实际情况来设定，这里，本公开实施例对此不做限定。
对于本公开驱动方法实施例中未披露的技术细节，本领域的技术人员请参照本公开触控显示驱动装置实施例中的描述而理解，这里不再赘述。
虽然本公开所揭露的实施方式如上，但上述的内容仅为便于理解本公开而采用的实施方式，并非用以限定本公开。任何本公开所属领域内的技术人员，在不脱离本公开所揭露的精神和范围的前提下，可以在实施的形式及细节上进行任何的修改与变化，但本公开的专利保护范围，仍须以所附的权利要求书所界定的范围为准。

Claims (13)

  1. 一种触控显示驱动装置，所述触控显示驱动装置与触控显示面板连接；所述触控显示驱动装置，包括：控制器和与所述控制器连接的存储器，其中，
    所述存储器，被配置为存储显示数据和触控数据；
    所述控制器，被配置为当所述触控显示面板处于显示工作时段时，对所述存储器进行用于读写显示数据的第一读写操作；或者，当所述触控显示面板处于触控工作时段时，对所述存储器进行用于读写触控数据的第二读写操作。
  2. 根据权利要求1所述的装置，还包括：分别与所述控制器连接的第一时序控制器和第二时序控制器，其中，
    所述第一时序控制器，被配置为当所述触控显示面板处于显示工作时段时，向所述控制器输出第一信号；
    所述第二时序控制器，被配置为当所述触控显示面板处于触控工作时段时，向所述控制器输出第二信号；
    所述控制器，被配置为响应于所述第一信号，对所述存储器进行用于读写显示数据的第一读写操作；或者，响应于所述第二信号，对所述存储器进行用于读写触控数据的第二读写操作，其中，所述第二信号的频率与第一信号的频率相同。
  3. 根据权利要求2所述的装置，其中，所述第一信号和所述第二信号的时钟周期均包括：第一时间片段和第二时间片段，其中，第二时间片段在第一时间片段之后；
    所述控制器，被配置为基于第一信号中与第一时间片段对应的信号，对所述存储器进行用于读写显示数据的第一读写操作；或者，基于所述第二信号中与第二时间片段对应的信号，对所述存储器进行用于读写触控数据的第二读写操作。
  4. 根据权利要求1所述的装置，其中，所述控制器，包括：第一读写模块和第一仲裁模块，其中，
    所述第一仲裁模块，被配置为当用于读写显示数据的第一读写操作与用于读写触控数据的第二读写操作发生冲突时，给用于读写显示数据的第一读写操作与用于读写触控数据的第二读写操作确定不同的优先级；
    所述第一读写模块，被配置为按照从高到低的优先级顺序，对所述存储器进行用于读写显示数据的第一读写操作与用于读写触控数据的第二读写操作。
  5. 根据权利要求4所述的装置，其中，用于读写显示数据的第一读写操作的优先级高于用于读写触控数据的第二读写操作的优先级。
  6. 根据权利要求4所述的装置，其中，所述第一仲裁模块，被配置为当用于读写显示数据的第一读写操作对应的待读写数据的数据量小于用于读写触控数据的第二读写操作对应的待读写数据的数据量时，确定用于读写显示数据的第一读写操作的优先级高于用于读写触控数据的第二读写操作的优先级；或者，当用于读写显示数据的第一读写操作对应的待读写数据的数据量大于用于读写触控数据的第二读写操作对应的待读写数据的数据量时，确定用于读写显示数据的第一读写操作的优先级低于用于读写触控数据的第二读写操作的优先级。
  7. 根据权利要求1所述的装置，还包括：通信模块，其中，
    所述通信模块，被配置为与主机进行数据通信；
    所述控制器，还被配置为响应于通过所述通信模块接收到的来自所述主机的用于读取第一数据的第一请求消息，从所述存储器所存储的数据中读取所述第一数据；将所述第一数据通过所述通信模块发送至所述主机；或者，响应于通过所述通信模块接收到的来自所述主机的用于写入第二数据的第二请求消息，将通过所述通信模块接收到的来自所述主机的第二数据存入所述存储器中。
  8. 根据权利要求7所述的装置，其中，所述控制器，包括：第二读写模块和第二仲裁模块，其中，
    所述第二仲裁模块，被配置为当用于读写显示数据的第一读写操作和用于读写触控数据的第二读写操作中的至少一个读写操作与用于读取第一数据 的第一请求消息和用于写入第二数据的第二请求消息中的任意一个请求消息发生冲突时，给所述至少一个读写操作与所述任意一个请求消息确定不同的优先级；
    所述第二读写模块，被配置为按照从高到低的优先级顺序，对所述存储器进行所述至少一个读写操作和响应于所述任意一个请求消息。
  9. 根据权利要求1至8中任一项所述的装置，其中，所述存储器包括：随机存取存储器。
  10. 一种触控显示装置，包括：触控显示面板以及与所述触控显示面板连接的触控显示驱动装置，其中，所述触控显示驱动装置为如权利要求1至9中任一项所述的触控显示驱动装置。
  11. 根据权利要求10所述的装置，其中，所述触控显示装置为可穿戴设备。
  12. 根据权利要求11所述的装置，其中，所述可穿戴设备包括：主机。
  13. 一种驱动方法，应用于如权利要求1所述的触控显示驱动装置，所述方法包括：
    当触控显示面板处于显示工作时段时，触控显示驱动装置中的控制器对触控显示驱动装置中的存储器进行用于读写显示数据的第一读写操作；或者，当所述触控显示面板处于触控工作时段时，所述控制器对所述存储器进行用于读写触控数据的第二读写操作。
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