Driving method of display device and display device

Abstract

The invention provides a driving method of a display device and the display device. The driving method of the display device comprises the following steps: detecting a lock losing state fed back by a driving module; acquiring a signal representation corresponding to the lock losing state; when the signal characterization meets a preset condition, adjusting a driving voltage; and outputting the adjusted driving voltage to a time sequence control module, and increasing the driving voltage output to the time sequence control module when the signal representation corresponding to the lock losing state of the driving module meets the preset condition, so that the power consumption can be reduced while the normal display condition is met, and the display efficiency is improved. The anti-interference capability of the time sequence control module is improved when the external signal interference intensity is relatively large, so that the anti-interference capability of the display device can be improved, and the conditions of picture abnormity such as blank screen and splash screen of the display device are avoided.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a driving method of a display device and a display device. Background Art

[0002] Mobile phone RF interference test is an important test to measure the anti-interference ability of display panels. At present, the RF interference frequency bands of mobile phone RF interference test include 2G (M850, GSM900), 3G (DSC1800, PCS1900), 4G (LTE) and 5G. The display device integrated in the mobile phone needs to ensure that there is no abnormal display phenomenon such as black screen, flashing screen, abnormal picture, etc. when the mobile phone emits the above frequency bands.

[0003] In the trend of energy saving, the driving voltage of the timing control chip in the display device has been reduced from the original 1.15V to 0.9V, and the power consumption has been reduced by 37%. The level of the communication signal decreases with the reduction of the driving voltage, resulting in a decrease in the anti-interference ability of the communication signal of the timing control chip, which in turn causes the display panel to have black screen, flickering screen and other screen abnormalities.

[0004] Therefore, it is necessary to provide a driving method of a display device and a display device to improve this defect. Summary of the invention

[0005] The embodiments of the present application provide a driving method for a display device and a display device, which can improve the anti-interference capability of the display device.

[0006] An embodiment of the present application provides a method for driving a display device, and the method for driving a display device comprises the following steps: The timing control module obtains the unlock signal generated by the driver module: The timing control module captures the signal representation of the lock-out signal; When the signal representation meets the preset condition, the timing control module controls the power management module to increase the driving voltage output to the timing control module.

[0007] Optionally, when the signal representation meets a preset condition, the timing control module controls the power management module to increase the driving voltage output to the timing control module, including the following steps: When the signal indicates that the unlock signal jumps from the first level to the second level, the timing control module controls the power management module to increase the driving voltage output to the timing control module.

[0008] Optionally, the timing control module controls the power management module to increase the driving voltage output to the timing control module, including the following steps: The timing control module outputs a control signal to the power management module through the IIC protocol; The power management module increases the driving voltage in response to the control signal.

[0009] Optionally, the driving method of the display device further includes the following steps: After the timing control module controls the power management module to increase the driving voltage output to the timing control module, the timing control module obtains the unlocking signal generated by the driving module; The timing control module captures the signal representation of the lock-out signal again; When the signal representation meets the preset condition, the timing control module controls the power management module again to increase the driving voltage output to the timing control module until the signal representation does not meet the preset condition.

[0010] Optionally, the driving method of the display device further includes the following steps: When the signal is characterized by the unlock signal jumping from the second level to the first level and maintaining the first level for a preset time period, the driving voltage is reduced.

[0011] Optionally, the driving method of the display device further includes the following steps: When the signal is characterized by the unlock signal jumping from the second level to the first level and maintaining the first level for a preset time period, the driving voltage is reduced to an initial voltage value.

[0012] Optionally, the first level is a high level, and the second level is a low level.

[0013] An embodiment of the present application further provides a display device, the display device comprising: Driver module; A timing control module connected to the driving module; A power management module connected to the timing control module; Among them, the timing control module is used to obtain the unlocking signal generated by the driving module, the timing control module is also used to capture the signal representation of the unlocking signal, and the timing control module is also used to control the power management module to increase the driving voltage output to the timing control module.

[0014] Optionally, the timing control module is connected to the power management module via an IIC bus, and the timing control module communicates with the power management module via an IIC protocol.

[0015] Optionally, the timing control module is configured to control the power management module to increase the driving voltage output to the timing control module when the signal characterizes that the unlock signal jumps from a first level to a second level.

[0016] Beneficial effects of the embodiments of the present application: The embodiments of the present application provide a driving method for a display device and a display device, and the driving method for the display device includes: a timing control module obtains an unlocked signal generated by a driving module: the timing control module captures the signal representation of the unlocked signal; when the signal representation meets the preset conditions, the timing control module controls the power management module to increase the driving voltage output to the timing control module, and when the signal representation of the unlocked signal generated by the driving module meets the preset conditions, the driving voltage output to the timing control module by the power management module is increased, so that the power consumption can be reduced under normal display conditions while the anti-interference ability of the timing control module when the external signal interference intensity is large can be improved, thereby improving the anti-interference ability of the display device and avoiding the display device from having abnormal screens such as black screens and flashing screens. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic flow chart of a method for driving a display device provided in an embodiment of the present application; Figure 2 A first timing diagram of a driving method for a display device provided in an embodiment of the present application; Figure 3 A second timing diagram of the driving method of the display device provided in the embodiment of the present application; Figure 4 A schematic diagram of the structure of a display device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0018] The following descriptions of the embodiments are made with reference to the attached drawings to illustrate specific embodiments that the present application may be implemented in. The directional terms mentioned in the present application, such as [up], [down], [front], [back], [left], [right], [inside], [outside], [side], etc., are only with reference to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate and understand the present application, rather than to limit the present application. In the drawings, units with similar structures are represented by the same reference numerals.

[0019] The present application is further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] The embodiments of the present application provide a driving method for a display device and a display device, which can improve the anti-interference capability of the display device.

[0021] In this embodiment, the driving method of the display device includes the following steps: the timing control module obtains the unlocking signal generated by the driving module: the timing control module captures the signal representation of the unlocking signal; when the signal representation meets the preset conditions, the timing control module controls the power management module to increase the driving voltage output to the timing control module.

[0022] In this embodiment, when the signal representation of the unlocked signal generated by the driving module meets the preset conditions, the driving voltage output by the power management module to the timing control module is increased. In this way, the power consumption can be reduced under normal display conditions, and the anti-interference ability of the timing control module when the external signal interference intensity is large can be improved, thereby improving the anti-interference ability of the display device and avoiding the display device from having abnormal screens such as black screens and flashing screens.

[0023] like Figure 1 As shown, Figure 1 A flow chart of a driving method for a display device provided in an embodiment of the present application, the driving method for a display device comprising: a timing control module acquiring an unlocked signal generated by a driving module: the timing control module capturing a signal representation of the unlocked signal; when the signal representation meets a preset condition, the timing control module controlling a power management module to increase a driving voltage output to the timing control module.

[0024] In some embodiments, the display device includes a timing control module and a driving module. There is a P2P signal transmission channel between the timing control module and the driving module, and the transmitted P2P signal is easily interfered by external signals. When the P2P signal of the driving module is interfered with and causes the P2P signal to fail to meet the signal standard, the driving module can feedback an unlock signal to the timing module through the feedback channel. The unlock signal is used to characterize the unlock state of the driving module. The timing control module determines the unlock state of the driving module by acquiring the unlock signal generated by the driving module.

[0025] In some embodiments, when the signal characterization meets preset conditions, the timing control module controls the power management module to increase the driving voltage output to the timing control module, including the following steps: when the signal characterization is that the unlocked signal jumps from the first level to the second level, the timing control module controls the power management module to increase the driving voltage output to the timing control module.

[0026] In some embodiments, the signal representation of the unlocked signal includes the level of the unlocked signal. When the driving module is in a normal working state, the level of the unlocked signal is a first level. When the driving module switches from a normal working state to an unlocked state, the driving module adjusts the unlocked signal from a first level to a second level, and feeds back the generated unlocked signal to the timing control module. After receiving the feedback, the timing control module sends a training signal to the driving module, the driving module responds to the training signal and releases the unlocked state after the training is completed, and restores the unlocked signal from the second level to the first level, the timing control module normally sends the display data signal to the driving module, and the driving module outputs normally, so that the display panel displays the image normally.

[0027] In some embodiments, Figure 2 As shown, Figure 2 A timing diagram of a driving method for a first display device provided in an embodiment of the present application, wherein the first level is a high level and the second level is a low level. When the driving module is in a normal working state, the unlocked signal Lock is a normally high level. When the driving module switches from a normal working state to an unlocked state, the driving module will pull down the level of the unlocked signal Lock and feed back the unlocked signal Lock to the timing control module. After receiving the feedback, the timing control module will send a training signal to the driving module, the driving module responds to the training signal and releases the unlocked state after the training is completed, and restores the unlocked signal Lock to a high level, the timing control module normally sends a display data signal to the driving module, and the driving module outputs normally so that the display panel displays the image normally.

[0028] In some embodiments, the timing control module controls the power management module to increase the driving voltage output to the timing control module, including the following steps: the timing control module outputs a control signal to the power management module through the IIC protocol; the power management module responds to the control signal and increases the driving voltage.

[0029] In some embodiments, the timing control module is connected to the power management module through an integrated circuit bus, and the timing control module and the power management module communicate through the IIC (Inter-Integrated Circuit) communication protocol. When the signal is characterized as the unlocked signal Lock jumping from the first level to the second level, it indicates that the external interference is enhanced and the driving module is in an unlocked state. The timing control module outputs a control signal to the power management module. The power management module responds to the control signal CS input by the timing control module through the IIC protocol, increases the driving voltage according to a preset rule, and outputs the increased driving voltage to the timing control module, thereby enhancing the anti-interference ability of the timing control module.

[0030] In some embodiments, the timing control module and the power management module are connected through an integrated circuit bus, which ensures that the timing control module can modify the code of the power management module. When external interference increases, the timing control module can change the driving voltage output by the power management module through the integrated circuit bus to increase the driving voltage from the normal driving voltage to a higher voltage level, thereby improving the anti-interference ability of the timing control module.

[0031] In some embodiments, the driving voltage includes an initial voltage value corresponding to a normal working state, that is, when the driving module is in a normal working state, the unlock signal is at a high level, and the voltage value of the driving voltage is equal to the initial voltage value. Reducing the driving voltage includes the following steps: adding the initial voltage value to the voltage compensation value to obtain an adjusted driving voltage.

[0032] In some embodiments, the voltage compensation value is a preset constant value, which can be obtained through testing and debugging. It only needs to compensate the initial voltage value of the driving power supply once to ensure that the signal strength of the P2P signal output by the adjusted timing control module can resist external interference.

[0033] In some embodiments, the driving method of the display device also includes the following steps: when the timing control module controls the power management module to increase the driving voltage output to the timing control module, the timing control module obtains the unlock signal generated by the driving module; the timing control module captures the signal representation of the unlock signal again; when the signal representation meets the preset conditions, the timing control module controls the power management module to increase the driving voltage output to the timing control module again until the signal representation does not meet the preset conditions.

[0034] like Figure 3 As shown, Figure 3 The timing diagram of the second display device driving method provided in the embodiment of the present application, when the external interference is enhanced, the driving module feeds back the unlocked signal to the timing control module to enhance the signal strength, if the signal strength is still insufficient to resist the external interference, the driving module switches from the normal working state to the unlocked state again, and feeds back the unlocked signal to the timing control module. When the timing control module obtains the signal representation corresponding to the unlocked signal, that is, when the unlocked signal jumps from the first level to the second level, the timing control module outputs a control signal to the power management module through the integrated circuit bus, and the power management module responds to the control signal, and compensates the driving voltage again on the basis of the previous compensation, that is, on the basis of the driving voltage obtained after the previous compensation, the voltage compensation value is accumulated until the signal standard corresponding to the unlocked state obtained does not meet the preset conditions, that is, when the obtained signal representation is that the unlocked signal is at the first level, the adjustment of the driving voltage can be stopped.

[0035] In some embodiments, the method for driving a display device further includes the following steps: when the signal is characterized by the unlock signal jumping from the second level to the first level and maintaining the first level for a preset time, reducing the driving voltage.

[0036] When the signal is characterized as the unlock signal Lock jumping from the second level to the first level and maintaining the first level for a preset time, the strength of the external interference signal decreases and returns to a normal level. At this time, the driving voltage is reduced according to the preset rule, so that the power consumption of the timing control module and the display device can be reduced. The preset time can be set according to the duration of the external interference. For example, the preset time can also be a few seconds, tens of seconds or a few minutes.

[0037] In some embodiments, the driving voltage includes an initial voltage value corresponding to a normal working state. When the signal is characterized as an unlocked signal jumping from the second level to the first level and maintaining the first level for a preset period of time, the driving voltage is reduced to the initial voltage value.

[0038] In one embodiment, the driving voltage includes an initial voltage value corresponding to a normal working state. When the signal is characterized by an unlocked signal jumping from the second level to the first level and maintaining the first level for a preset period of time, it indicates that the strength of the external interference signal has recovered to a normal level and the P2P signal has also recovered to a normal level. At this time, the timing control module reduces the voltage value of the adjusted driving voltage output by the power management module to the initial voltage value through the integrated circuit bus. This can improve the anti-interference ability of the display device while avoiding increasing the power consumption of the display device during normal display.

[0039] The embodiment of the present application further provides a display device, which can be driven by the display device driving method provided by any of the above embodiments. Figure 4 As shown, Figure 4 This is a schematic diagram of the structure of a display device provided in an embodiment of the present application. The display device 100 includes a display panel 11, a driving module 12, a timing control module 13 and a power management module 14.

[0040] In the embodiments of the present application, Figure 4 As shown, the driving module 12 is a source driving circuit chip, and a plurality of driving modules 12 are connected to the display panel 11. The timing control module 13 is a timing controller, and the timing control module 13 is connected to the driving module 12, and the power management module 14 is connected to the timing control module 13. The timing control module 13 is used to obtain the unlocking signal generated by the driving module 12, and the timing control module 13 is also used to capture the signal representation of the unlocking signal, and the timing control module 13 is also used to control the power management module to increase the driving voltage output to the timing control module.

[0041] In some embodiments, Figure 4 As shown, the timing control module 13 includes an unlock signal acquisition module 131, a characterization capture module 132, and a control module 133. The unlock signal acquisition module 131 is used to acquire the unlock signal generated by the driving module 12, the characterization capture module 132 is used to replenish the signal characterization of the unlock signal, and the control module 133 is used to control the power management module 14 to increase the driving voltage output to the timing control module 13 when the signal characterization meets the preset conditions.

[0042] In some embodiments, the timing control module 13 is connected to the power management module 14 via an IIC bus. For example, both the timing control module 13 and the power management module 14 have an IIC interface, and the IIC interface of the timing control module 13 is connected to the IIC interface of the power management module 14 via the IIC bus. The timing control module 13 communicates with the power management module 14 via the IIC protocol, so that the timing control module can modify the code of the power management module. When external interference increases, the timing control module can change the driving voltage output by the power management module through the integrated circuit bus, so that the driving voltage is increased from the normal driving voltage to a higher voltage level, thereby improving the anti-interference ability of the timing control module.

[0043] In some embodiments, Figure 4 As shown, the power management module 14 includes an adjustment module 141 and an output module 142 . The adjustment module 141 is used to increase the driving voltage in response to the control signal output by the timing control module 13 , and the output module 142 is used to output the increased driving voltage to the timing control module 13 .

[0044] The embodiments of the present application further provide a computer storage medium on which computer instructions are stored. When the instructions are executed by a processor, a method for driving a display device applicable to any of the above embodiments is implemented.

[0045] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0046] Alternatively, if the above-mentioned integrated unit of the present invention is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present invention can be essentially or partly reflected in the form of a software product that contributes to the relevant technology. The computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, terminal, or network device, etc.) to execute all or part of the methods of each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, RAM, ROM, magnetic disks or optical disks.

[0047] Corresponding to the above-mentioned computer storage medium, in one embodiment, a computer device is also provided, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, a driving method for a display device applicable to any one of the above-mentioned embodiments is implemented.

[0048] The above-mentioned computer device detects the unlocked state fed back by the driving module, and after obtaining the signal representation corresponding to the unlocked state, adjusts the driving voltage output by the power management module to the timing control module, so as to enhance the anti-interference ability of the timing control module. Based on this, the unlocked state is selected as the representation of the interference of the P2P signal, and the anti-interference ability of the timing control module is enhanced by increasing the driving voltage output by the power management module to the timing control module through the adjustment and control of the unlocked state. In this way, the power consumption can be reduced under normal display conditions, and the anti-interference ability of the timing control module when the external signal interference intensity is large can be improved, thereby improving the anti-interference ability of the display device and avoiding the display device from having abnormal screens such as black screens and flickering screens.

[0049] Beneficial effects of the embodiments of the present application: The embodiments of the present application provide a driving method for a display device and a display device, and the driving method for the display device includes: a timing control module obtains an unlocked signal generated by a driving module: the timing control module captures the signal representation of the unlocked signal; when the signal representation meets the preset conditions, the timing control module controls the power management module to increase the driving voltage output to the timing control module, and when the signal representation of the unlocked signal generated by the driving module meets the preset conditions, the driving voltage output to the timing control module by the power management module is increased, so that the power consumption can be reduced while meeting normal display conditions, and the anti-interference ability of the timing control module when the external signal interference intensity is large can be improved, thereby improving the anti-interference ability of the display device and avoiding the display device from having black screen, flashing screen and other screen abnormalities.

[0050] In summary, although the present application is disclosed as above with preferred embodiments, the above preferred embodiments are not intended to limit the present application. Ordinary technicians in this field can make various changes and modifications without departing from the spirit and scope of the present application. Therefore, the scope of protection of the present application is based on the scope defined by the claims.

Claims

1. A method for driving a display device, characterized in that: The driving method of the display device comprises the following steps: The timing control module obtains the unlock signal generated by the driver module: The timing control module captures the signal representation of the lock-out signal; When the signal representation meets the preset condition, the timing control module controls the power management module to increase the driving voltage output to the timing control module.

2. The method for driving a display device according to claim 1, wherein: When the signal representation meets the preset condition, the timing control module controls the power management module to increase the driving voltage output to the timing control module, including the following steps: When the signal indicates that the unlock signal jumps from the first level to the second level, the timing control module controls the power management module to increase the driving voltage output to the timing control module.

3. The driving method of the display device according to claim 2, characterized in that: The timing control module controls the power management module to increase the driving voltage output to the timing control module, including the following steps: The timing control module outputs a control signal to the power management module through the IIC protocol; The power management module increases the driving voltage in response to the control signal.

4. The method for driving a display device according to claim 1, wherein: The driving method of the display device further comprises the following steps: After the timing control module controls the power management module to increase the driving voltage output to the timing control module, the timing control module obtains the unlocking signal generated by the driving module; The timing control module captures the signal representation of the lock-out signal again; When the signal representation meets the preset condition, the timing control module controls the power management module again to increase the driving voltage output to the timing control module until the signal representation does not meet the preset condition.

5. The method for driving a display device according to any one of claims 2 to 4, characterized in that: The driving method of the display device further comprises the following steps: When the signal is characterized by the unlock signal jumping from the second level to the first level and maintaining the first level for a preset time period, the driving voltage is reduced.

6. The method for driving a display device according to claim 5, wherein: The driving method of the display device further comprises the following steps: When the signal is characterized by the unlock signal jumping from the second level to the first level and maintaining the first level for a preset time period, the driving voltage is reduced to an initial voltage value.

7. The method for driving a display device according to claim 5, wherein: The first level is a high level, and the second level is a low level.

8. A display device, characterized in that: The display device comprises: Driver module; A timing control module connected to the driving module; A power management module connected to the timing control module; Among them, the timing control module is used to obtain the unlocking signal generated by the driving module, the timing control module is also used to capture the signal representation of the unlocking signal, and the timing control module is also used to control the power management module to increase the driving voltage output to the timing control module.

9. The display device according to claim 8, wherein: The timing control module is connected to the power management module via an IIC bus, and the timing control module communicates with the power management module via an IIC protocol.

10. The display device according to claim 8, wherein: The timing control module is used for controlling the power management module to increase the driving voltage output to the timing control module when the signal is characterized as the unlock signal jumping from the first level to the second level.

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