Power supply control method, touch and display driving integrated chip and touch display device

Abstract

The invention discloses a power supply control method, a touch control and display driving integrated chip and a touch control display device, the touch control and display driving integrated chip is carried on the touch control display device, and the touch control and display driving integrated chip is electrically connected with a multi-path power supply. The method comprises the following steps: acquiring a power supply adjustment command triggered by the change of a working mode of the touch display device, and adjusting the power supply logic of a plurality of power supplies to a touch and display driving integrated chip according to the power supply adjustment command, and when the touch display device is in the sleep mode, at least part of power supply of the multi-path power supply to the display driving module is cut off. The technical problem that the power consumption of the touch display device in the sleep mode is too high is solved to a certain extent.

Description

Technical Field

[0001] The present invention belongs to the field of display technology, and in particular relates to a power supply control method, a touch and display driver integrated chip, and a touch display device. Background Art

[0002] With the continuous development of display technology, touch display devices have been widely used in smart products. The touch function and display function of most smart products are independently controlled by two chips. Since the driver chips of the display function and the touch function are separated, this may cause some display noise.

[0003] With the rapid development and iteration of display screens, flexible display screens are being used more and more widely, and the corresponding TDDI (Touch and Display Driver Integration) chips are also being used more and more widely. The biggest feature of the TDDI driver chip is that it integrates the touch driver and display driver into a single chip, which brings a unified system architecture. Since the TDDI driver chip achieves unified control, it will have better effects in noise management. However, the application of TDDI chips has the problem of excessive power consumption when the touch display device is in sleep mode. Summary of the invention

[0004] The embodiments of the present invention provide a power supply control method, a touch and display driver integrated chip, and a touch display device, which at least to some extent solve the technical problem of excessive power consumption of a touch display device in sleep mode.

[0005] In a first aspect of the present invention, a power supply control method for a touch control and display driver integrated chip is provided, wherein the touch control and display driver integrated chip is mounted on a touch control display device, and the touch control and display driver integrated chip is electrically connected to multiple power supplies. The method comprises: obtaining a power adjustment command triggered by a change in an operating mode of the touch control display device, wherein the operating mode change comprises entering a sleep mode and exiting the sleep mode; and adjusting the power supply logic of the multiple power supplies to the touch control and display driver integrated chip according to the power adjustment command, so that when the touch control display device is in the sleep mode, the power supply of the multiple power supplies to a display driver module in the touch control and display driver integrated chip is at least partially disconnected.

[0006] In combination with the first aspect, in some embodiments, the power supply logic of the touch and display driver integrated chip being adjusted by the multiple power supplies according to the power adjustment command includes: if a first adjustment sub-command triggered by the touch display device entering the sleep mode is obtained, at least partially disconnecting the power supply of the multiple power supplies to the display driver module according to the first adjustment sub-command; if a second adjustment sub-command triggered by the touch display device exiting the sleep mode is obtained, restoring the power supply of the multiple power supplies to the display driver module according to the second adjustment sub-command.

[0007] In combination with the first aspect, in some embodiments, the touch and display driver integrated chip is electrically connected to both the first power supply and the second power supply; at least partially disconnecting the power supply of the multiple power supplies to the display driver module according to the first adjustment sub-command includes: disconnecting the power supply of the first power supply to the display driver module and the power supply of the second power supply to the display driver module according to the first adjustment sub-command.

[0008] In combination with the first aspect, in some embodiments, restoring the power supply of the multiple power supplies to the display driver module according to the second adjustment sub-command includes: restoring the power supply of the first power supply to the display driver module and the power supply of the second power supply to the display driver module according to the second adjustment sub-command.

[0009] In combination with the first aspect, in some embodiments, disconnecting the power supply of the first power supply to the display driver module and the power supply of the second power supply to the display driver module according to the first adjustment sub-command includes: obtaining a first cutoff signal and a second cutoff signal according to the first adjustment sub-command; executing the first cutoff signal through a first target register to cut off a first switch device used to switch the first power supply to supply power to the display driver module; and executing the second cutoff signal through a second target register to cut off a second switch device used to switch the second power supply to supply power to the display driver module; and restoring the power supply of the first power supply to the display driver module and the power supply of the second power supply to the display driver module according to the second adjustment sub-command includes: obtaining a first turn-on signal and a second turn-on signal according to the second adjustment sub-command; executing the first turn-on signal through the first target register to turn on the first switch device; and executing the second turn-on signal through the second target register to turn on the second switch device.

[0010] In combination with the first aspect, in some embodiments, the touch and display driver integrated chip is electrically connected to both a first power supply and a second power supply; at least partially disconnecting the power supply of the multiple power supplies to the display driver module according to the first adjustment sub-command includes: disconnecting the power supply of the touch and display driver integrated chip to the touch and display driver integrated chip by the first power supply according to the first adjustment sub-command, and configuring the second power supply to separately supply power to the touch driver module of the touch and display driver integrated chip.

[0011] In combination with the first aspect, in some embodiments, restoring the power supply of the multiple power supplies to the display driver module according to the second adjustment sub-command includes: according to the second adjustment sub-command, turning on the first power supply to supply power to the display driver module and configuring the second power supply, configuring the first power supply to be restored to supply power to the display driver module and the touch driver module at the same time, and the second power supply to be restored to supply power to the display driver module and the touch driver module at the same time.

[0012] In combination with the first aspect, in some embodiments, according to the first adjustment sub-command, disconnecting the first power supply from supplying power to the touch and display driver integrated chip and configuring the second power supply to supply power to the touch driver module of the touch and display driver integrated chip separately includes: obtaining a third cutoff signal and a third on-signal according to the first adjustment sub-command; executing the third cutoff signal through a third target register to cut off a third switch device used to switch the first power supply to supply power to the touch and display driver integrated chip; and executing the third on-signal through a fourth target register to turn on a fourth switch device, the fourth switch device being used to switch the second power supply circuit to supply power to the control interface in the touch driver module; according to the second adjustment sub-command, turning on the first power supply to supply power to the display driver module and configuring the second power supply includes: obtaining a fourth on-signal and a fourth cutoff signal according to the second adjustment sub-command; executing the fourth on-signal through the third target register to turn on the third switch device; and executing the fourth cutoff signal through the fourth target register to cut off the fourth switch device.

[0013] In combination with the first aspect, in some embodiments, the supply voltage of the first power supply is greater than the supply voltage of the second power supply.

[0014] In combination with the first aspect, in some embodiments, the first power supply is used to provide a control interface voltage for the touch and display driver integrated chip, and the second power supply is used to provide a data interface output voltage for the touch and display driver integrated chip.

[0015] In combination with the first aspect, in some embodiments, adjusting the power supply logic of the touch and display driver integrated chip from the multiple power supplies according to the power adjustment command includes: obtaining multiple switching signals according to the power adjustment command; executing the multiple switching signals one-to-one through multiple target registers to adjust the power supply logic of the touch and display driver integrated chip from the multiple power supplies, wherein the multiple target registers are registers in the touch and display driver integrated chip that are not occupied by other functions.

[0016] In the second aspect of the present invention, a touch control and display driver integrated chip is also provided, comprising: a processor; and a memory for storing instructions executable by the processor, wherein the processor is configured to execute the instructions to implement the power supply control method of the touch control and display driver integrated chip described in any embodiment of the first aspect.

[0017] In a third aspect of the present invention, a touch display device is provided, comprising: a touch display panel and the touch and display driver integrated chip described in any embodiment of the second aspect, wherein the touch and display driver integrated chip is electrically connected to the touch display panel.

[0018] In a fourth aspect of the present invention, a touch display device is further provided, comprising: a main control board, a touch display panel, a touch and display driver integrated chip electrically connected to the touch display panel, and a multi-way power supply electrically connected to the touch and display driver integrated chip, wherein the touch and display driver integrated chip comprises a display driver module and a touch driver module; the main control board is used to output a first adjustment sub-command when recognizing that the touch display device enters a sleep mode, and to output a second adjustment sub-command when recognizing that the touch display device exits the sleep mode; the touch and display driver integrated chip is used to, if the first adjustment sub-command is obtained, at least partially disconnect the power supply of the multi-way power supply to the display driver module according to the first adjustment sub-command, and to, if the second adjustment sub-command is obtained, restore the power supply of the multi-way power supply to the display driver module according to the second adjustment sub-command.

[0019] According to the power supply control method, touch and display driver integrated chip and touch display device provided by one or more embodiments of the present invention, by obtaining a power adjustment command triggered by a change in the working mode of the touch display device, when the touch display device enters a sleep mode and exits the sleep mode; the power supply logic of the touch and display driver integrated chip from multiple power supplies is adjusted according to the power adjustment command, so that when the touch display device is in the sleep mode, the power supply of the display driver module from the multiple power supplies is at least partially disconnected, thereby reducing the power supply to the display driver module or completely disconnecting the power supply to the display driver module, thereby effectively reducing the power consumption of the touch display device in the sleep mode.

[0020] The above description is only an overview of the technical solutions provided by some embodiments of the present invention. In order to more clearly understand the technical means of the embodiments of the present invention, they can be implemented according to the contents of the specification. In order to make the embodiments of the present invention more obvious and easy to understand, the specific implementation methods of the embodiments of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A schematic diagram showing electrical connections between a touch control and display driver integrated chip and a power supply in some embodiments of the present invention;

[0023] Figure 2 The flowchart of the power supply control method of the touch and display driver integrated chip in some embodiments of the present invention is shown:

[0024] Figure 3A The control flow of the power supply control method of the touch and display driver integrated chip in some embodiments of the present invention when the touch display device enters the sleep mode is shown;

[0025] Figure 3B The power supply logic of the power supply control method of the touch and display driver integrated chip in some embodiments of the present invention when the touch display device is in the sleep mode is shown;

[0026] Figure 4 The power supply logic of the power supply control method of the touch and display driver integrated chip in some embodiments of the present invention after the touch display device exits the sleep mode is shown;

[0027] Figure 5AThe control flow of the power supply control method of the touch and display driver integrated chip in other embodiments of the present invention when the touch display device enters the sleep mode is shown;

[0028] Figure 5B The power supply logic of the power supply control method of the touch and display driver integrated chip in other embodiments of the present invention when the touch display device is in the sleep mode is shown;

[0029] Figure 6 A schematic diagram showing the structure of a touch display device according to some embodiments of the present invention is shown;

[0030] Figure 7 The schematic diagrams of the structures of touch display devices according to other embodiments of the present invention are shown. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections. It should be understood that the "electrical connection" between element A and element B described herein may be that element A is directly electrically connected to element B, or that there may be an intermediate element between element A and element B. The term "at least two paths" appearing in this article includes two paths or more than two paths.

[0033] Figure 1 Schematic diagram showing the electrical connection between the touch control and display driver integrated chip and the power supply in some embodiments of the present invention. Figure 1 As shown, the touch control and display driver integrated chip 110 mounted on the touch display device 10 is electrically connected to the multi-channel power supply 120 , so that the multi-channel power supply 120 jointly supplies power to the touch control and display driver integrated chip 110 .

[0034] like Figure 1 As shown, in some embodiments, the touch and display driver integrated chip 110 is electrically connected to two power supplies, and is powered by the two power supplies: one is a VCI (Voltage for Control Interface) power supply (hereinafter referred to as the control interface power supply) 121, which is used to provide the voltage of the control interface, and the other is a VDDIO (Voltage for Data Interface Output) power supply (hereinafter referred to as the data interface power supply) 122, which is used to provide the data interface output voltage. The control interface power supply 121 is used to provide the voltage required for the internal control signal of the touch and display driver integrated chip to ensure that the various parts inside the touch and display driver integrated chip can work normally, including internal data transmission, signal processing, etc. The data interface power supply 122 is used to ensure the stability and reliability of data transmission. In TDDI technology, the data interface power supply (VDDIO) 122 provides the necessary voltage support so that the touch and display data can be accurately and efficiently transmitted from the touch and display driver integrated chip to the touch display panel or other related components. The display driver module 111 and the touch driver module 112 in the touch and display driver integrated chip 110 need to be powered by two power supplies, namely, the control interface power supply 121 and the data interface power supply 122. The control interface power supply 121 can provide the touch driver module 112 with a first control interface sub-power supply (AVDD_TP) and the display driver module 111 with a second control interface sub-power supply (AVDD), and the second control interface sub-power supply (AVDD) is used to provide VGH voltage, ELVDD voltage, VGMP voltage, etc. It can be understood that the control interface power supply 121 is also used to provide VCL voltage, VGL voltage, etc. The data interface power supply 122 can provide the display driver module 111 with a first data interface sub-power supply (VDDIO_TP) and the touch driver module 112 with a second data interface sub-power supply (VDDIO). When the touch display device 10 is in a sleep mode (e.g., IDLE mode), the display driver module 111 does not need to be turned on, but the touch driver module 112 needs to remain normally open. Furthermore, because both the display driver module 111 and the touch driver module 112 need to be powered by the control interface power supply 121 and the data interface power supply 122, when the touch display device 10 is in the sleep mode, the control interface power supply 121 and the data interface power supply 122 will continue to power the display driver module 111, causing the display driver module 111 to also consume power, thereby causing the touch display device 10 to consume more power in the sleep mode.

[0035] In view of this, an embodiment of the present invention provides a power supply control method for a touch control and display driver integrated chip. The touch control and display driver integrated chip is mounted on a touch display device, and the touch control and display driver integrated chip is electrically connected to multiple power supplies. Figure 2 FIG. 1 is a flow chart showing a power supply control method for a touch control and display driver integrated chip in some embodiments of the present invention. Figure 2 As shown, the power supply control method of the touch control and display driver integrated chip includes the following steps S201 to S203.

[0036] Step S201: obtaining a power adjustment command triggered by a change in the working mode of the touch display device, where the working mode change includes entering a sleep mode and exiting a sleep mode.

[0037] In some embodiments, the sleep mode may be an IDLE mode, which is a simple sleep mode with the lowest power consumption. It only stops the instruction execution of the processor core, and may also be referred to as an AOD (always-on display) mode.

[0038] In some embodiments, the power adjustment command triggered by the touch display device entering the sleep mode is the first adjustment sub-command, and the power adjustment command triggered by the touch display device exiting the sleep mode is the second adjustment sub-command. The first adjustment sub-command and the second adjustment sub-command have opposite adjustment directions for the power supply logic of the same power supply. It is understandable that when the screen of the touch display device is awakened, the touch display device will exit the sleep mode.

[0039] In some embodiments, the touch display device includes a main control board, and the touch and display driver integrated chip is electrically connected to the main control board: when the touch display device enters a sleep mode, the main control board is triggered to send a first adjustment sub-command to the touch and display driver integrated chip, so that the touch and display driver integrated chip can obtain the first adjustment sub-command from the main control board when the touch display device enters the sleep mode; when the touch display device exits the sleep mode, the main control board is triggered to send a second adjustment sub-command to the touch and display driver integrated chip, so that the touch and display driver integrated chip can obtain the second adjustment sub-command from the main control board when the touch display device exits the sleep mode.

[0040] Step S202: adjusting the power supply logic of the touch and display driver integrated chip from multiple power supplies according to the power adjustment command, so that when the touch display device is in the sleep mode, the power supply of the display driver module in the touch and display driver integrated chip from multiple power supplies is at least partially disconnected.

[0041] In some embodiments, the target register can be used to adjust the power supply logic of the touch and display driver integrated chip from various power supplies electrically connected to the touch and display driver integrated chip, wherein the target register is a register in the touch and display driver integrated chip that is not occupied by other functions, and the other functions refer to functions other than the function of adjusting the power supply of multiple power supplies to the display driver module.

[0042] It is understandable that if there are no idle registers in the touch and display driver integrated chip, it is only necessary to add registers in the touch and display driver integrated chip. If there are idle registers not occupied by other functions in the touch and display driver integrated chip, the idle registers not occupied by other functions in the touch and display driver integrated chip can be directly used without affecting the original function and structure of the touch and display driver integrated chip.

[0043] When using the target register in the touch and display driver integrated chip to adjust the power supply logic of the touch and display driver integrated chip from multiple power supplies, it can include: obtaining multiple switching signals according to the power adjustment command, and executing the multiple switching signals one by one through multiple target registers to adjust the power supply logic of the touch and display driver integrated chip from multiple power supplies, wherein the above-mentioned multiple target registers are registers in the touch and display driver integrated chip that are not occupied by other functions.

[0044] In some embodiments, the power supply logic of multiple power supplies to the touch and display driver integrated chip is adjusted according to the power adjustment command, including: if a first adjustment sub-command triggered by the touch display device entering a sleep mode is obtained, at least partially disconnecting the power supply of the multiple power supplies to the display driver module according to the first adjustment sub-command; if a second adjustment sub-command triggered by the touch display device exiting the sleep mode is obtained, restoring the power supply of the multiple power supplies to the display driver module according to the second adjustment sub-command.

[0045] In some embodiments, when the touch control and display driver integrated chip is electrically connected to the first power supply and the second power supply, and the first power supply and the second power supply are used to supply power to the touch control and display driver integrated chip, there may be multiple embodiments to adjust the power supply logic of the first power supply and the second power supply to the touch control and display driver integrated chip, so as to reduce the power consumption in the sleep mode:

[0046] In some embodiments, at least partially disconnecting the power supply of multiple power supplies to the display driver module according to the first adjustment sub-command may include: according to the first adjustment sub-command, disconnecting the power supply of the first power supply to the display driver module and the power supply of the second power supply to the display driver module, so that when the touch display device is in the sleep mode, the first power supply and the second power supply only supply power to the touch driver module, and the display driver module is not powered at all, thereby reducing the power consumption of the touch display device in the sleep mode.

[0047] In some embodiments, restoring the power supply of multiple power supplies to the display driver module according to the second adjustment sub-command may include: according to the second adjustment sub-command, restoring the power supply of the first power supply to the display driver module and the power supply of the second power supply to the display driver module, so that the first power supply is restored to supply power to the display driver module and the touch driver module at the same time, and the second power supply is restored to supply power to the display driver module and the touch driver module at the same time, so that the touch driver module and the display driver module are both in the on state. It can be understood that any one of the first power supply and the second power supply is a data interface power supply (VDDIO), and the other is a control interface power supply (VCI).

[0048] In some embodiments, when the touch control and display driver integrated chip is electrically connected to the first power supply and the second power supply, two idle registers in the touch control and display driver integrated chip are needed to execute two switching signals one by one to adjust the power supply logic of the touch control and display driver integrated chip by the first power supply and the second power supply.

[0049] In some embodiments, when entering the sleep mode, the power supply of the first power supply to the display driver module and the power supply of the second power supply to the display driver module are disconnected through two idle registers in the touch and display driver integrated chip and the first adjustment sub-command, so as to complete the adjustment of the power supply logic when entering the sleep mode. In some embodiments, when exiting the sleep mode, the power supply of the first power supply to the display driver module and the power supply of the second power supply to the display driver module are restored through two idle registers in the touch and display driver integrated chip and the second adjustment sub-command, so as to complete the adjustment of the power supply logic when exiting the sleep mode.

[0050] In some embodiments, disconnecting the power supply of the first power supply to the display driver module and the power supply of the second power supply to the display driver module through two idle registers in the touch and display driver integrated chip and the first adjustment sub-command may include: acquiring a first cutoff signal and a second cutoff signal according to the first adjustment sub-command; executing the first cutoff signal through the first target register to cut off the first switch device used to switch the first power supply to supply power to the display driver module; executing the second cutoff signal through the second target register to cut off the second switch device used to switch the second power supply to supply power to the display driver module. The first target register and the second target register are two idle registers in the touch and display driver integrated chip.

[0051] In some embodiments, restoring the power supply of the first power supply to the display driver module and the power supply of the second power supply to the display driver module through two idle registers in the touch and display driver integrated chip and the second adjustment sub-command can include: obtaining the first turn-on signal and the second turn-on signal according to the second adjustment sub-command; executing the first turn-on signal through the first target register to turn on the first switching device; executing the second turn-on signal through the second target register to turn on the second switching device.

[0052] Figure 3A The control flow of the power supply control method of the touch and display driver integrated chip in some embodiments of the present invention when the touch display device enters the sleep mode is shown. Figure 3B The power supply logic of the touch display device in the sleep mode is shown in the power supply control method of the touch and display driver integrated chip of some embodiments of the present invention. Figure 4 The power supply logic of the power supply control method of the touch and display driver integrated chip in some embodiments of the present invention after the touch display device exits the sleep mode is shown. Figure 3A , Figure 3B and Figure 4 The following is described by taking the sleep mode as IDLE mode, the first power supply and the second power supply as control interface power supply (VCI) and data interface power supply (VDDIO) respectively as an example:

[0053] Step A1: Enter IDLE mode;

[0054] Step A2: The first switch device K1 is turned off through the first target register to disconnect the second control interface sub-power supply (AVDD) of the VCI power supply for supplying power to the display driver module; and the second switch device K2 is turned off through the second target register to disconnect the second data interface sub-power supply (VDDIO) of the VDDIO power supply for supplying power to the display driver module. The adjusted power supply logic is shown in Figure 3B As shown;

[0055] Step A3: Exit IDLE mode;

[0056] Step A4: Turn on the first switch device K2 through the first target register to turn on the second control interface sub-power supply (AVDD) of the VCI power supply to the display driver module; and turn on the second switch device K2 through the second target register to turn on the second data interface sub-power supply (VDDIO) of the VDDIO power supply to the display driver module. The adjusted power supply logic is shown in Figure 4 shown.

[0057] In other embodiments, at least partially disconnecting the power supply of multiple power supplies to the display driver module according to the first adjustment sub-command may include: according to the first adjustment sub-command, disconnecting the power supply of the touch and display driver integrated chip by the first power supply and configuring the second power supply to separately supply power to the touch driver module of the touch and display driver integrated chip; after configuration, the second power supply supplies power to the touch driver module separately, so that the second power supply provides the first power supply voltage required for internal control of the touch driver module and the second power supply voltage required for outputting data externally, replacing the first power supply voltage or the second power supply voltage provided by the first power supply to the touch driver module.

[0058] In other embodiments, restoring the power supply to the display driver module according to the second adjustment sub-command may include: according to the second adjustment sub-command, turning on the first power supply and configuring the second power supply, configuring the first power supply to be restored to supply power to the display driver module and the touch driver module at the same time, and the second power supply to be restored to supply power to the display driver module and the touch driver module at the same time. It can be understood that any one of the first power supply and the second power supply is a data interface power supply (VDDIO), and the other is a control interface power supply (VCI).

[0059] In some embodiments, when entering the sleep mode, through two idle registers in the touch and display driver integrated chip and the first adjustment sub-command, the first power supply is disconnected from the power supply to the touch and display driver integrated chip, and the second power supply is configured to supply power to the touch driver module of the touch and display driver integrated chip separately, thereby realizing the adjustment of the power supply logic when entering the sleep mode.

[0060] In some embodiments, when exiting the sleep mode, the first power supply is turned on to supply power to the display driver module and the second power supply is configured through two idle registers and the second adjustment sub-command in the touch and display driver integrated chip, thereby realizing the adjustment of the power supply logic when exiting the sleep mode.

[0061] In some embodiments, through two idle registers in the touch and display driver integrated chip and the first adjustment sub-command, disconnecting the first power supply from supplying power to the touch and display driver integrated chip and configuring the second power supply to supply power to the touch driver module of the touch and display driver integrated chip alone may include: acquiring a third cutoff signal and a third on-signal according to the first adjustment sub-command; executing the third cutoff signal through the third target register to cut off the third switch device used to switch the first power supply to supply power to the touch and display driver integrated chip; executing the third on-signal through the fourth target register to turn on the fourth switch device, which is used to switch the second power supply circuit to supply power to the control interface in the touch driver module. The third target register and the fourth target register are two idle registers in the touch and display driver integrated chip.

[0062] In some embodiments, through two idle registers in the touch and display driver integrated chip and the second adjustment sub-command, the first power supply is turned on to supply power to the display driver module and the second power supply is configured, which may include: obtaining a fourth turn-on signal and a fourth turn-off signal according to the second adjustment sub-command; executing the fourth turn-on signal through the third target register to turn on the third switch device; and executing the fourth turn-off signal through the fourth target register to turn off the fourth switch device.

[0063] Figure 5A The control flow of the power supply control method of the touch and display driver integrated chip in other embodiments of the present invention when the touch display device enters the sleep mode is shown. Figure 5B The power supply logic of the power supply control method of the touch and display driver integrated chip in other embodiments of the present invention when the touch display device is in sleep mode is shown. Figure 5A , Figure 5B and Figure 4 , take the sleep mode as IDLE mode, the first power supply and the second power supply as control interface power supply (VCI) and data interface power supply (VDDIO) as an example for description:

[0064] Step B1: Enter IDLE mode;

[0065] Step B2: The third switch device K3 is turned off through the third target register to disconnect the VCI power supply to the touch and display driver integrated chip; and the fourth switch device K4 is turned on through the fourth target register to turn on the first control interface sub-power supply (AVDD_TP) of the VDDIO power supply to the touch driver module. The adjusted power supply logic is shown in Figure 5B As shown;

[0066] Step B3: Exit IDLE mode;

[0067] Step B4: Turn on the third switch device K3 through the third target register to start the VCI power supply to the touch and display driver integrated chip; and turn off the fourth switch device K4 through the fourth target register to disconnect the first control interface sub-power (AVDD_TP) of the VDDIO power supply to the touch driver module. The adjusted power supply logic is shown in Figure 4 shown.

[0068] In order to further reduce the power consumption in the sleep mode, the supply voltage of the first power supply is greater than the supply voltage of the second power supply. That is, when entering the sleep mode, the first power supply with a larger supply voltage is disconnected according to the first adjustment sub-command, and only the second power supply with a smaller supply voltage is retained for power supply, which can more effectively reduce power consumption.

[0069] In some embodiments, the supply voltages of the two power supplies (VCI and VDDIO) for the touch and display driver integrated chip are generally 3.3V and 1.8V respectively. By disconnecting the control interface power supply (VCI) after entering the sleep mode, and configuring the first control interface sub-power supply AVDD_TP and the first data interface sub-power supply TVDDIO_TP required by the touch driver module to be provided by the data interface power supply (VDDIO) with a smaller supply voltage, the data interface power supply (VDDIO) can provide a maximum supply voltage of 5.4V when it is 1.8V, so it can meet the needs of the touch driver module. The voltage and current of the data interface power supply (VDDIO) are much smaller than the voltage of the control interface power supply (VCI), so it can effectively reduce power consumption. The power consumption required by the touch driver module in the sleep mode is also low, so only using the data interface power supply (VDDIO) to power the touch driver module will not affect the basic touch function in the sleep mode.

[0070] In some embodiments, a third switch device K3 is additionally provided between the touch and display driver integrated chip and the first power supply. Disconnecting the first power supply of the two power supplies according to the first adjustment sub-command may include: controlling the third switch device K3 to be cut off to disconnect the electrical connection between the first power supply and the touch and display driver integrated chip.

[0071] Based on the same inventive concept, an embodiment of the present invention also provides a touch and display driver integrated chip, including: a processor; a memory for storing processor executable instructions, wherein the processor is configured to execute the above instructions to implement the power supply control method of the above touch and display driver integrated chip.

[0072] Based on the same inventive concept, an embodiment of the present invention further provides a touch display device, Figure 6 FIG. 1 is a schematic diagram showing the structure of a touch display device according to some embodiments of the present invention. Figure 6As shown, the touch display device 10 includes: a touch display panel 130 and a touch and display driver integrated chip 110 , the touch and display driver integrated chip 110 and the touch display panel 130 are electrically connected, and the touch and display driver integrated chip 110 and the multi-channel power supply 120 are electrically connected.

[0073] Based on the same inventive concept, an embodiment of the present invention further provides a touch display device, Figure 7 FIG. 2 shows a schematic diagram of the structure of a touch display device according to another embodiment of the present invention. Figure 7 As shown, the touch display device includes: a main control board 140, a touch display panel 130, a touch and display driver integrated chip 110 electrically connected to the touch display panel 130, and a multi-way power supply 120 electrically connected to the touch and display driver integrated chip 110, the touch and display driver integrated chip 110 includes a display driver module 111 and a touch driver module 112; the main control board 140 is used to output a first adjustment sub-command when recognizing that the touch display device 10 enters a sleep mode, and is used to output a second adjustment sub-command when recognizing that the touch display device 10 exits the sleep mode; the touch and display driver integrated chip 110 is used to, if the first adjustment sub-command is obtained, at least partially disconnect the power supply of the multi-way power supply 120 to the display driver module 111 according to the first adjustment sub-command, and is used to, if the second adjustment sub-command is obtained, restore the power supply of the multi-way power supply 120 to the display driver module 111 according to the second adjustment sub-command.

[0074] In some embodiments, the touch display panel 130 may be a mutual capacitance touch display panel or a self capacitance touch display panel. The touch display panel 130 is a panel with touch and display functions. The touch display panel 130 may include: a display panel and a touch structure, and the touch structure is arranged on the display side of the display panel. The touch structure may, for example, adopt a single-chip touch panel (One Glass Solution, referred to as OGS), or adopt an embedded touch structure such as On-cell or In-cell.

[0075] In some embodiments, the touch display panel 130 may be a self-luminous display panel or a liquid crystal display panel (LCD). The self-luminous display panel may be, for example, an organic light-emitting diode (OLED) display panel or a quantum dot light emitting diode (QLED) display panel.

[0076] In some embodiments, the touch display device 10 may be, for example, a display screen with touch and display functions, wearable display products (such as bracelets, watches, glasses, and helmets, etc.), televisions, tablet computers, laptop computers, mobile phones, digital photo frames, navigators, and other products or components. Of course, the touch display device provided in the embodiments of the present invention is not limited to the types listed above.

[0077] Based on the same inventive concept, some embodiments of the present invention further provide a computer program product. When the computer program product is executed by a processor, the steps of the power supply control method of the above-mentioned touch and display driver integrated chip are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0078] Based on the same inventive concept, some embodiments of the present invention also provide a computer-readable storage medium on which a computer program is stored. When the computer program is executed by the processor, the steps of the power supply control method of the touch and display driver integrated chip described above are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here. For example, the computer-readable storage medium can be a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, etc.

[0079] It should be noted that the drawings of the embodiments of the present invention only relate to the structures related to the embodiments of the present invention, and other structures can refer to the general design. In the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other to obtain new embodiments.

[0080] Although some embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiment and all changes and modifications that fall within the scope of the present invention.

Claims

1. A power supply control method for a touch and display driver integrated chip, characterized in that: The touch control and display driver integrated chip is mounted on a touch display device, and the touch control and display driver integrated chip is electrically connected to multiple power supplies. The method includes: Acquire a power adjustment command triggered by a change in the working mode of the touch display device, wherein the working mode change includes entering a sleep mode and exiting the sleep mode; The power supply logic of the touch and display driver integrated chip provided by the multiple power supplies is adjusted according to the power adjustment command, so that when the touch display device is in sleep mode, the power supply of the display driver module in the touch and display driver integrated chip provided by the multiple power supplies is at least partially disconnected.

2. The power supply control method according to claim 1, characterized in that: The step of adjusting the power supply logic of the touch control and display driver integrated chip by the multiple power supplies according to the power adjustment command includes: If a first adjustment sub-command triggered by the touch display device entering the sleep mode is obtained, at least partially disconnecting the power supply of the multiple power supplies to the display driver module according to the first adjustment sub-command; If a second adjustment sub-command triggered by the touch display device exiting the sleep mode is obtained, the power supply of the multiple power supplies to the display driving module is restored according to the second adjustment sub-command.

3. The power supply control method according to claim 2, characterized in that: The touch control and display driver integrated chip is electrically connected to the first power supply and the second power supply; The at least partially disconnecting the power supply of the multiple power supplies to the display driving module according to the first adjustment sub-command includes: The first power supply and the second power supply are disconnected according to the first adjustment sub-command.

4. The power supply control method according to claim 3, characterized in that: The step of restoring the power supply of the display driving module by the multiple power supplies according to the second adjustment sub-command includes: The power supply of the first power supply to the display driver module and the power supply of the second power supply to the display driver module are restored according to the second adjustment sub-command.

5. The power supply control method according to claim 4, characterized in that: The method of disconnecting the power supply of the first power supply to the display driver module and the power supply of the second power supply to the display driver module according to the first adjustment sub-command includes: Acquire a first cutoff signal and a second cutoff signal according to the first adjustment sub-command; executing the first cutoff signal through a first target register to cut off a first switch device used for switching the first power supply to supply power to the display driving module; and Executing the second cutoff signal through the second target register to cut off the second switch device used for switching the second power supply to supply power to the display driving module; The restoring the power supply of the first power supply to the display driver module and the power supply of the second power supply to the display driver module according to the second adjustment sub-command includes: Acquire a first conduction signal and a second conduction signal according to the second adjustment sub-command; executing the first turn-on signal through the first target register to turn on the first switching device; and The second turn-on signal is executed through the second target register to turn on the second switching device.

6. The power supply control method according to claim 2, characterized in that: The touch control and display driver integrated chip is electrically connected to the first power supply and the second power supply; The at least partially disconnecting the power supply of the multiple power supplies to the display driving module according to the first adjustment sub-command includes: According to the first adjustment sub-command, the first power supply is disconnected from supplying power to the touch and display driver integrated chip, and the second power supply is configured to supply power to a touch driver module of the touch and display driver integrated chip alone.

7. The power supply control method according to claim 6, characterized in that: The step of restoring the power supply of the display driving module by the multiple power supplies according to the second adjustment sub-command includes: According to the second adjustment sub-command, the first power supply is turned on to supply power to the display driver module and the second power supply is configured, so that the first power supply is restored to supply power to the display driver module and the touch driver module at the same time, and the second power supply is restored to supply power to the display driver module and the touch driver module at the same time.

8. The power supply control method according to claim 7, characterized in that: The method of disconnecting the first power supply from supplying power to the touch and display driver integrated chip according to the first adjustment sub-command and configuring the second power supply to supply power to the touch driver module of the touch and display driver integrated chip separately includes: Acquire a third cut-off signal and a third conduction signal according to the first adjustment sub-command; Executing the third cutoff signal through the third target register to cut off a third switch device used for switching the first power supply to supply power to the touch control and display driver integrated chip; and Executing the third turn-on signal through a fourth target register to turn on a fourth switch device, wherein the fourth switch device is used to switch the power supply of the second power supply circuit to the control interface in the touch control driving module; The step of turning on the first power supply to supply power to the display driver module and configuring the second power supply according to the second adjustment sub-command includes: Acquire a fourth on signal and a fourth off signal according to the second adjustment sub-command; executing the fourth turn-on signal through the third target register to turn on the third switching device; and The fourth turn-off signal is executed through the fourth target register to turn off the fourth switching device.

9. The method according to any one of claims 6 to 8, characterized in that: The supply voltage of the first power supply is greater than the supply voltage of the second power supply.

10. The method according to any one of claims 3 to 8, characterized in that: The first power supply is used to provide a control interface voltage for the touch control and display driver integrated chip, and the second power supply is used to provide a data interface output voltage for the touch control and display driver integrated chip.

11. The method according to claim 1, characterized in that The step of adjusting the power supply logic of the touch control and display driver integrated chip by the multiple power supplies according to the power adjustment command includes: Obtaining a plurality of switch signals according to the power adjustment command; The multiple switch signals are executed one-to-one through multiple target registers to adjust the power supply logic of the touch and display driver integrated chip from the multiple power supplies, wherein the multiple target registers are registers in the touch and display driver integrated chip that are not occupied by other functions.

12. A touch control and display driver integrated chip, characterized in that: include: processor; A memory for storing instructions executable by the processor, wherein the processor is configured to execute the instructions to implement the power supply control method for the touch control and display driver integrated chip according to any one of claims 1 to 11.

13. A touch display device, characterized in that: include: A touch display panel and a touch and display driver integrated chip according to any one of claims 1 to 11, wherein the touch and display driver integrated chip is electrically connected to the touch display panel.

14. A touch display device, characterized in that: include: A main control board, a touch display panel, a touch and display driver integrated chip electrically connected to the touch display panel, and a multi-channel power supply electrically connected to the touch and display driver integrated chip, wherein the touch and display driver integrated chip includes a display driver module and a touch driver module; The main control board is used to output a first adjustment sub-command when recognizing that the touch display device enters a sleep mode, and output a second adjustment sub-command when recognizing that the touch display device exits the sleep mode; The touch and display driver integrated chip is used to at least partially disconnect the power supply of the multiple power supplies to the display driver module according to the first adjustment sub-command if the first adjustment sub-command is obtained, and to restore the power supply of the multiple power supplies to the display driver module according to the second adjustment sub-command if the second adjustment sub-command is obtained.

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