Display adjustment method of double display screens and VR equipment

Abstract

The invention provides a display adjustment method of double display screens and VR equipment, which are used for ensuring stable operation of the double display screens of the VR equipment and avoiding screen flickering. Comprising the steps that if it is determined that the working frame rate of the VR equipment changes according to the current working frame rate of the VR equipment and the working frame rate of the last period, whether the screen-on time of the double display screens is the same or not is determined through the current working frame rate, and if yes, the screen-on time of the double display screens is determined based on the current unit backlight current of the double display screens; obtaining a target unit backlight current smaller than the current unit time backlight current; based on the current backlight display duration, a target backlight display duration longer than the current backlight display duration is obtained, and the decreasing multiple of the backlight current in the current unit time is the same as the increasing multiple of the current backlight display duration; the current unit backlight current of the double display screens is adjusted to be the target unit backlight current, and the current backlight display duration is adjusted to be the target backlight display duration.

Description

Technical Field

[0001] The present application relates to the field of virtual reality technology, and in particular to a display adjustment method for dual display screens and a VR device. Background Art

[0002] VR (Virtual Reality) devices usually use Fast LCD (Fast Liquid Crystal Display) dual screens for black insertion mode display. That is, the left and right display screens in the VR device will light up globally after refreshing the effective pixel matrix.

[0003] At present, most backlight drivers in VR devices adopt a one-stage boost power supply topology design, that is, the battery voltage is boosted to the working voltage of the backlight in the VR device (22-30V). The total conduction current value of the backlight of the left and right dual screens in the VR device is about 160-300mA. When the left and right dual screen backlights of the VR device are lit at the same time, the battery current will reach more than 2A. If the VR device is running in a high-power application scenario (for example, gaming or watching movies), the total transient load current may reach more than 4A. In this case, it is very easy for the battery voltage to be transiently pulled down by hundreds of millivolts, which will cause the backlight driver input to be undervoltage and unable to work normally, causing the VR device screen to flicker and affect the user experience. Summary of the invention

[0004] The present application provides a dual-display display adjustment method and a VR device, which are used to reduce the unit backlight current of the dual-display of the VR device and extend the backlight duration of the dual-display. Thus, under the premise of ensuring that the backlight brightness of the dual-display remains unchanged, the transient impact of the backlight current on the battery voltage is reduced to ensure that the dual-display of the VR device can operate stably and avoid screen flickering.

[0005] In a first aspect, an embodiment of the present application provides a display adjustment method for a dual display screen, the method comprising:

[0006] Periodically acquiring a current working frame rate of the VR device, comparing the current working frame rate with a working frame rate of the VR device in a previous period, and determining whether the working frame rate of the VR device has changed;

[0007] If yes, determining whether the screen-on time of the dual display screens of the VR device is the same according to the current working frame rate, wherein the screen-on time includes the screen-on start time and the screen-on end time;

[0008] If they are the same, a target unit backlight current is obtained based on the current unit backlight current of the dual display screens; wherein the unit backlight current is the current passing through any one of the dual display screens per unit time, and the target unit backlight current is less than the current backlight current per unit time, and,

[0009] Based on the current backlight display duration of the dual display screen, a target backlight display duration is obtained, wherein the target backlight display duration is greater than the current backlight display duration, and the current backlight current per unit time is reduced by the same multiple as the current backlight display duration is increased;

[0010] The current unit backlight current of the dual display screen is adjusted to the target unit backlight current, and the current backlight display duration is adjusted to the target backlight display duration.

[0011] A second aspect of the present application provides a VR device, including a processor, a first display module, a second display module, a first backlight unit, and a second backlight unit, wherein the processor is connected to one end of the first display module through a first interface, connected to one end of the second display module through a second interface, connected to one end of the first backlight unit through a third interface, and connected to one end of the second backlight unit through a fourth interface, the other end of the first display module is connected to the other end of the first backlight unit, and the other end of the second display module is connected to the other end of the second backlight unit;

[0012] The processor is used for, when it is determined that the screen-on time of the first display module and the second display module are the same, determining a target backlight display duration based on the current backlight display duration of the display module, and sending a backlight control instruction to the first display module and the second display module respectively based on the target backlight display duration, and outputting a low-level signal to the first backlight unit and the second backlight unit respectively, wherein the screen-on time includes a screen-on start time and a screen-on end time, and the display module is the first display module or the second display module, and the target backlight display duration is greater than the current backlight display duration, and the backlight control instruction includes a duty cycle corresponding to the target backlight display duration;

[0013] The first display module is used to convert the duty cycle in the received backlight control instruction into a PWM duty cycle electrical signal, and send the PWM duty cycle electrical signal to the first backlight unit;

[0014] The second display module is used to convert the duty cycle in the received backlight control instruction into a PWM duty cycle electrical signal, and send the PWM duty cycle electrical signal to the second backlight unit;

[0015] The first backlight unit is used to adjust the current unit backlight current of the first backlight unit to a target unit backlight current after receiving the low-level signal, and adjust the current backlight display duration of the first backlight unit to the target backlight display duration based on the PWM duty cycle electrical signal, wherein the target unit backlight current is less than the current unit time backlight current of the first backlight unit, and the current unit time backlight current is reduced by the same multiple as the current backlight display duration is increased;

[0016] The second backlight unit is used to adjust the current unit backlight current of the second backlight unit to the target unit backlight current after receiving the low-level signal, and to adjust the current backlight display duration of the second backlight unit to the target backlight display duration based on the PWM duty cycle electrical signal.

[0017] According to a third aspect provided by an embodiment of the present invention, a computer storage medium is provided, wherein the computer storage medium stores a computer program, and the computer program is used to execute the method as described in the first aspect.

[0018] In the above-mentioned embodiment of the present application, when it is determined that the working frame rate of the VR device has changed, the current working frame rate of the VR device is used to determine whether the screen-on time of the dual display screens is the same. If it is determined that the screen-on time is the same, the current unit backlight current of the dual display screens is reduced, and the current backlight display duration of the dual display screens is increased, and in the embodiment of the present application, the multiple by which the current unit backlight current is reduced is the same as the multiple by which the current backlight display duration is increased. Thus, it can be ensured that the transient impact of the backlight current on the battery voltage is reduced under the premise that the backlight brightness of the dual display screens remains unchanged, thereby ensuring that the dual display screens of the VR device can operate stably and avoiding screen flickering. Improve user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 One of the structural diagrams of the VR device provided in the embodiment of the present application is exemplarily shown;

[0021] Figure 2 The second structural diagram of the VR device provided in the embodiment of the present application is exemplarily shown;

[0022] Figure 3 One of the flow charts of the display adjustment method of the dual display screen provided in the embodiment of the present application is exemplarily shown;

[0023] Figure 4 A schematic diagram of backlight control of a conjoined dual screen provided in an embodiment of the present application is exemplarily shown;

[0024] Figure 5 A schematic diagram of separating dual screens for backlight control provided in an embodiment of the present application is exemplarily shown;

[0025] Figure 6 The following is an exemplary diagram showing a comparison of display parameters of a dual display screen provided in an embodiment of the present application;

[0026] Figure 7 An exemplary display parameter comparison diagram of the conjoined dual screen provided in an embodiment of the present application is shown;

[0027] Figure 8 The second flowchart of the display adjustment method of the dual display screen provided in the embodiment of the present application is exemplarily shown;

[0028] Fig. 9 A schematic diagram of a display adjustment device for a dual display screen provided in an embodiment of the present application is exemplarily shown. DETAILED DESCRIPTION

[0029] In order to make the purpose, implementation mode and advantages of the present application clearer, the exemplary implementation mode of the present application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0030] Based on the exemplary embodiments described in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the claims attached to this application. In addition, although the disclosure in this application is introduced according to one or several exemplary examples, it should be understood that each aspect of the disclosure can also constitute a complete implementation method separately.

[0031] It should be noted that the brief description of terms in this application is only for the convenience of understanding the embodiments described below, and is not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their ordinary and common meanings.

[0032] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover but not exclude inclusion, for example, a product or device comprising a series of components is not necessarily limited to those components clearly listed, but may include other components not clearly listed or inherent to these products or devices.

[0033] The term "module" as used in this application refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic or combination of hardware and / or software code that is capable of performing the functions associated with that element.

[0034] The idea of ​​the embodiments of the present application is summarized below.

[0035] Based on the prior art, when the left and right dual screen backlights of the VR device are lit at the same time, there will be a large transient impact of the backlight current on the battery voltage, resulting in undervoltage of the backlight drive input and failure to work normally, resulting in the problem of screen flickering of the VR device. Therefore, an embodiment of the present application provides a display adjustment method for a dual display screen. When it is determined that the working frame rate of the VR device has changed, the current working frame rate of the VR device is used to determine whether the screen light-up time of the dual display screens is the same. If it is determined that the screen light-up time is the same, the current unit backlight current of the dual display screen is reduced, and the current backlight display duration of the dual display screen is increased, and in the embodiment of the present application, the multiple by which the current unit backlight current is reduced is the same as the multiple by which the current backlight display duration is increased. Thus, it can be ensured that the transient impact of the backlight current on the battery voltage is reduced under the premise that the backlight brightness of the dual display screens remains unchanged, ensuring that the dual display screens of the VR device can operate stably and avoiding screen flickering. Improve user experience.

[0036] Before introducing the display adjustment method of the dual display screen in the present application in detail, the VR device in the embodiment of the present application is first introduced in detail. Figure 1 , which is one of the structural schematic diagrams of the VR device 100 in the embodiment of the present application, the VR device includes a processor 110, a first display module (LCD Module, LCM) 120, a second display module 130, a first backlight unit 140 and a second backlight unit 150.

[0037] from Figure 1It can be seen that the processor 110 is connected to one end of the first display module 120 through the first interface 111, connected to one end of the second display module 130 through the second interface 112, connected to one end of the first backlight unit 140 through the third interface 113, and connected to one end of the second backlight unit 150 through the fourth interface 114. The other end of the first display module 120 is connected to the other end of the first backlight unit 140, and the other end of the second display module 130 is connected to the other end of the second backlight unit 140. Wherein:

[0038] The processor 110 is used to determine the target backlight display duration based on the current backlight display duration of the display module when it is determined that the screen-on time of the first display module 120 and the second display module 130 is the same, and send backlight control instructions to the first display module 120 and the second display module 130 based on the target backlight display duration, and output low-level signals to the first backlight unit 140 and the second backlight unit 150, respectively, wherein the display screen is the first display module 120 and / or the second display module 130, and the target backlight display duration is greater than the current backlight display duration, and the backlight control instruction includes a duty cycle corresponding to the target backlight display duration.

[0039] The processor of the embodiment of the present application pre-sets the correspondence between the backlight display duration and the duty cycle, so the duty cycle corresponding to the target backlight display duration can be obtained based on the correspondence.

[0040] The first display module 120 is used to convert the duty cycle in the received backlight control instruction into a PWM duty cycle electrical signal, and send the PWM duty cycle electrical signal to the first backlight unit 140 .

[0041] The second display module 130 is used to convert the duty cycle in the received backlight control instruction into a PWM duty cycle electrical signal, and send the PWM duty cycle electrical signal to the second backlight unit 150 .

[0042] The first backlight unit 140 is used to adjust the current unit backlight current of the first backlight unit 140 to the target unit backlight current after receiving the low-level signal, and adjust the current backlight display duration of the first backlight unit 140 to the target backlight display duration based on the PWM duty cycle electrical signal, wherein the unit backlight current is the current in the first display module 120 or the second display module 130 per unit time, the target unit backlight current is less than the current backlight current per unit time of the first backlight unit, and the current backlight current per unit time is reduced by the same multiple as the current backlight display duration is increased.

[0043] The second backlight unit 150 is used to adjust the current unit backlight current of the second backlight unit 150 to the target unit backlight current after receiving the low level signal, and adjust the current backlight display duration of the second backlight unit 150 to the target backlight display duration based on the PWM duty cycle electrical signal.

[0044] It should be noted that: in the embodiment of the present application, the first interface and the second interface are both MIPI DSI interfaces. And the types of the third interface and the fourth interface are both GPIO (General-purpose input / output) interfaces. However, the embodiment of the present application does not limit the first interface, the second interface, the third interface and the fourth interface. In the embodiment of the present application, the first interface, the second interface, the third interface and the fourth interface can be set according to actual conditions.

[0045] like Figure 2 FIG. 2 is a second structural diagram of a VR device in an embodiment of the present application. Figure 2 It can be seen that the structures of the first backlight unit and the second backlight unit in the embodiment of the present application are the same. The structures of the first backlight unit and the second backlight unit in the embodiment of the present application are described in detail below in conjunction with the accompanying drawings:

[0046] The first backlight unit 140 in the embodiment of the present application includes a first nMOS tube 141, a first resistor 142, a second resistor 143, a first backlight driver chip 144 and a first backlight 145. The first backlight 145 in the embodiment of the present application can be one or more, and can be set according to specific actual conditions. The embodiment of the present application does not limit the number of the first backlight 145. Among them, the gate G of the first nMOS tube 141 is connected to the third interface 113 of the processor 110, the source S of the first nMOS tube 141 is connected to the ground line, the drain D of the first nMOS tube 141 is connected to one end of the second resistor 143, one end of the first resistor 142 is connected to the ground line, the other end of the first resistor 142 and the other end of the second resistor 143 are respectively connected to the first interface 1441 of the first backlight driver chip 144, the first backlight 145 is connected to the second interface 1442 of the first backlight driver chip 144, and the other end of the first display module 120 is connected to the third interface 1443 of the first backlight driver chip 144. Among them:

[0047] The first nMOS transistor 141 is used to disconnect the source electrode S from the ground line when receiving a low level signal sent by the processor 110. The first backlight driver chip 144 is used to adjust the current unit backlight current of the first backlight lamp 145 to the target unit backlight current after the source electrode S of the first nMOS transistor 141 is disconnected from the ground line, and adjust the current backlight display duration of the first backlight lamp 145 to the target backlight display duration based on the PWM duty cycle electrical signal sent by the first display module 120.

[0048] The second backlight unit 150 in the embodiment of the present application includes a second nMOS tube 151, a third resistor 152, a fourth resistor 153, a second backlight driver chip 154, and a second backlight 155. Among them, the gate G of the second nMOS tube 151 is connected to the fourth interface 114 of the processor 110, the source S of the second nMOS tube 151 is connected to the ground line, the drain D of the second nMOS tube 151 is connected to one end of the fourth resistor 153, one end of the third resistor 152 is connected to the ground line, the other end of the third resistor 152 and the other end of the fourth resistor 153 are respectively connected to the first interface 1541 of the second backlight driver chip 154, the second backlight 155 is connected to the second interface 1542 of the second backlight driver chip 154, and the other end of the second display module 130 is connected to the third interface 1543 of the second backlight driver chip 154. Among them:

[0049] The second nMOS transistor 151 is used to disconnect the source electrode S of the second nMOS transistor 151 from the ground line when receiving a low level signal sent by the processor 110. The second backlight driver chip 154 ​​is used to adjust the current unit backlight current of the second backlight 155 to the target unit backlight current after the source electrode S of the second nMOS transistor 151 is disconnected from the ground line, and adjust the current backlight display duration of the second backlight 155 to the target backlight display duration based on the PWM duty cycle electrical signal sent by the second display module 130.

[0050] The following is a detailed description of the dual display screen display adjustment method in the present application in conjunction with the accompanying drawings. Figure 3 FIG. 1 is a flow chart of a method for adjusting a display of a dual display screen, which may include the following steps:

[0051] Step 301: periodically obtain the current working frame rate of the VR device, compare the current working frame rate with the working frame rate of the VR device in the previous period, and determine whether the working frame rate of the VR device has changed. If so, execute step 302; if not, end;

[0052] In one embodiment, whether the working frame rate of the VR device changes may be determined in the following manner:

[0053] If the current working frame rate is the same as the working frame rate of the VR device in the previous cycle, it is determined that the working frame rate of the VR device has changed. If the current working frame rate is different from the working frame rate of the VR device in the previous cycle, it is determined that the working frame rate of the VR device has not changed.

[0054] In the embodiment of the present application, the period can be 1 second or 10 seconds. The specific execution time can be set according to the actual situation, and the embodiment of the present application does not limit the specific value of the period in the embodiment of the present application.

[0055] In order to save computing resources, in one embodiment, it is determined that both of the dual display screens are in a display state before executing step 301. That is, in the embodiment of the present application, the display adjustment method of the dual display screen in the embodiment of the present application is executed only when both of the dual display screens of the VR device are in a display state, and when there is a display screen that is not in a display state in the dual display screen, the method in the embodiment of the present application is not executed, thereby saving computing resources.

[0056] Step 302: Determine whether the screen-on time of the dual display screens of the VR device is the same according to the current working frame rate, wherein the screen-on time includes the screen-on start time and the screen-on end time. If yes, execute step 303; if no, end.

[0057] The same screen-on time in the embodiment of the present application means that the screen-on start time of the dual display screens is the same, and the screen-on end time of the dual display screens is the same. And the type of the dual display screen in the embodiment of the present application is a conjoined dual screen. Figure 4 As shown, it is a schematic diagram of backlight control of a connected split screen. It can be seen from the figure that when the dual display screens are connected dual screens, the connected dual screens are equivalent to one screen, that is, the processor only needs to send one drive output to the dual screens, and the dual screens only need to send one control input to the processor.

[0058] In one embodiment, whether the screen-on time of the dual display screens is the same may be determined in the following manner:

[0059] (1) If the current working frame rate is the first frame rate, it is determined that the screen-on time of the dual display screens is the same.

[0060] (2) If the current working frame rate is a second frame rate, determining that the screen-on time of the dual display screens is different, wherein the first frame rate is less than the second frame rate.

[0061] For example, the working frame rate of the VR device includes 72fps or 90fps. If the working frame rate of the VR device is 72fps, it is determined that the screen-on time of the dual displays is the same. If the working frame rate of the VR and device is 90fps, it is determined that the screen-on time of the dual displays is different.

[0062] Currently, the types of dual display screens include not only conjoined dual screens but also separate dual screens. Figure 5 As shown in the figure, it is a schematic diagram of separating the dual screens for backlight control. Figure 5 It can be seen that the two screens in the separated dual screen do not use the same input or output interface, but each of the two screens has its own independent input or output interface for backlight control. When the type of the dual display screen is a separated dual screen, the screen light time of the separated dual screen is the same regardless of the working frame rate. Therefore, when the type of the dual display screen is a separated dual screen, the corresponding target unit time backlight current value and the target backlight display duration value can be directly configured at the factory. The display adjustment method of the dual display screen in the embodiment of the present application is not required.

[0063] Step 303: based on the current unit backlight current of the dual display screens, a target unit backlight current is obtained; wherein the unit backlight current is the current passing through any one of the dual display screens in a unit time, and the target unit backlight current is less than the current unit time backlight current;

[0064] In one embodiment, step 303 may be specifically implemented as follows: multiplying the current unit backlight current by a specified multiple to obtain the target unit backlight current, wherein the specified multiple is greater than 0 and less than 1. The target unit backlight current may be obtained by formula (1):

[0065] I m =I 0 ×A......(1);

[0066] Among them, I m is the target unit backlight current, I 0 is the current unit backlight current, A is the specified multiple, and 0<A<1.

[0067] The specified multiple in the embodiment of the present application is 0.5. And the relationship between the specified multiple in the embodiment of the present application and the two resistors in the backlight unit is If the backlight unit is the first backlight unit, then R 1 is the first resistor, R 2 is the second resistor. If the backlight unit is the second backlight unit, then R 1 is the third resistor, R 2However, the embodiment of the present application does not limit the specific value of the specified multiple, and the specified multiple in the embodiment of the present application can be set according to the specific actual situation.

[0068] Step 304: obtaining a target backlight display duration based on the current backlight display duration of the dual display screen, wherein the target backlight display duration is greater than the current backlight display duration, and the current backlight current per unit time is reduced by the same multiple as the current backlight display duration is increased;

[0069] In one embodiment, step 304 can be specifically implemented as follows: dividing the current backlight display duration by the specified multiple to obtain the target backlight display duration. The target backlight display duration can be obtained by formula (2):

[0070]

[0071] Among them, T m The duration of the target backlight display, T 0 is the duration of the current backlight display, and A is the specified multiple.

[0072] like Figure 6 As shown, the current backlight current per unit time, the current backlight display duration, the target backlight current per unit time, and the target backlight display duration corresponding to any brightness. Figure 6 The example in the figure is that the specified multiple is 0.5. It can be seen from the figure that the target backlight display duration corresponding to any brightness is half of the current backlight current per unit time at that brightness, and the target backlight display duration corresponding to that brightness is one time the current backlight display duration at that brightness.

[0073] Step 305: adjusting the current unit backlight current of the dual display screen to the target unit backlight current, and adjusting the current backlight display duration to the target backlight display duration.

[0074] The following is an introduction to the display adjustment effect of the dual display screens in this application with reference to specific examples:

[0075] like Figure 7 The figure shows the parameter settings of the left and right half screens of JDI's LPM055M493F 5.46-inch one-piece display with a resolution of 3664x1920. The working frame rate of this one-piece dual screen is 72 / 90fps. Figure 7 The example above takes the working frame rate of 72fps as an example. This example takes the specified multiple of 0.5 as an example. Figure 7It can be seen that each brightness level of the VR device corresponds to a current unit backlight current and a current backlight display duration corresponding to the current unit backlight current. And the brightness also corresponds to a target unit backlight current and a target backlight display duration. It can be seen from the figure that the target unit backlight current of each brightness level is half of the current unit backlight current, and the target backlight display duration is twice the current backlight display duration. Therefore, the brightness of the dual display screens can be guaranteed to remain unchanged, and the backlight current of the dual display screens can be reduced.

[0076] In order to further understand the method in this application, the display adjustment method of the dual display screen in this application is introduced in detail. Figure 8 FIG. 1 is a flow chart of a method for adjusting the display of a dual display screen in the present application, which may include the following steps:

[0077] Step 800: Determine whether both dual display screens of the VR device are in display state, if yes, execute step 801, if no, end;

[0078] Step 801: periodically obtain the current working frame rate of the VR device, and determine whether the current working frame rate is the same as the working frame rate of the VR device in the previous period. If so, execute step 802; if not, end;

[0079] Step 802: Determine whether the current working frame rate is the first frame rate, if yes, execute step 803, if no, end;

[0080] Step 803 obtains a target unit backlight current based on the current unit backlight current of the dual display screens of the VR device; wherein the unit backlight current is the current passing through any one of the dual display screens per unit time, and the target unit backlight current is less than the current backlight current per unit time;

[0081] Step 804: based on the current backlight display duration of the dual display screen, a target backlight display duration is obtained, wherein the target backlight display duration is greater than the current backlight display duration, and the current backlight current per unit time is reduced by the same multiple as the current backlight display duration is increased;

[0082] Step 805: adjusting the current unit backlight current of the dual display screen to the target unit backlight current, and adjusting the current backlight display duration to the target backlight display duration.

[0083] Based on the same inventive concept, the dual display screen display adjustment method disclosed above can also be implemented by a dual display screen display adjustment device. The effect of the dual display screen display adjustment device is similar to that of the aforementioned method, and will not be described in detail here.

[0084] Fig. 9 The figure is a schematic diagram of the structure of a display adjustment device for a dual display screen according to an embodiment of the present disclosure.

[0085] like Fig. 9 As shown, the display adjustment device 900 for dual display screens of the present disclosure may include an acquisition module 910 , a judgment module 920 , a backlight current determination module 930 , a backlight duration determination module 940 and an adjustment module 950 .

[0086] An acquisition module 910 is used to periodically acquire a current working frame rate of a VR device, compare the current working frame rate with a working frame rate of the VR device in a previous period, and determine whether the working frame rate of the VR device has changed;

[0087] A judgment module 920 is used to determine whether the screen-on time of the dual display screens of the VR device is the same according to the current working frame rate, wherein the screen-on time includes a screen-on start time and a screen-on end time;

[0088] The backlight current determination module 930 is used to obtain a target unit backlight current based on the current unit backlight current of the dual display screens if they are the same; wherein the unit backlight current is the current passing through any one of the dual display screens per unit time, and the target unit backlight current is less than the current unit time backlight current;

[0089] A backlight duration determination module 940 is used to obtain a target backlight display duration based on the current backlight display duration of the dual display screen, wherein the target backlight display duration is greater than the current backlight display duration, and the current backlight current per unit time is reduced by the same multiple as the current backlight display duration is increased;

[0090] The adjustment module 950 is used to adjust the current unit backlight current of the dual display screen to the target unit backlight current, and to adjust the current backlight display duration to the target backlight display duration.

[0091] In one embodiment, the determination module 920 is specifically configured to:

[0092] If the current operating frame rate is the first frame rate, determining that the screen-on time of the dual display screens is the same; or,

[0093] If the current working frame rate is the second frame rate, it is determined that the screen-on time of the dual display screens is different, wherein the first frame rate is less than the second frame rate.

[0094] In one embodiment, the backlight current determination module 930 is specifically used to:

[0095] Multiplying the current unit backlight current by a specified multiple to obtain the target unit backlight current, wherein the specified multiple is greater than 0 and less than 1;

[0096] The backlight duration determination module 940 is specifically used to:

[0097] The current backlight display duration is divided by the specified multiple to obtain the target backlight display duration.

[0098] In one embodiment, the dual display screen is a conjoined dual screen.

[0099] In one embodiment, the apparatus further comprises:

[0100] The display status determination module 960 is used to determine that both of the dual display screens are in a display state before obtaining the target parameters of the VR device.

[0101] In some possible implementations, various aspects of a dual-display display adjustment method provided by the present invention may also be implemented in the form of a program product, which includes a program code. When the program product is run on a computer device, the program code is used to enable the computer device to execute the steps of the dual-display display adjustment method according to various exemplary embodiments of the present invention described above in this specification.

[0102] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A display adjustment method for dual display screens, characterized in that: Applied to VR equipment, the method includes: Periodically acquiring a current working frame rate of the VR device, comparing the current working frame rate with a working frame rate of the VR device in a previous period, and determining whether the working frame rate of the VR device has changed; If yes, determining whether the screen-on time of the dual display screens of the VR device is the same according to the current working frame rate, wherein the screen-on time includes the screen-on start time and the screen-on end time; If they are the same, a target unit backlight current is obtained based on the current unit backlight current of the dual display screens; wherein the unit backlight current is the current passing through any one of the dual display screens per unit time, and the target unit backlight current is less than the current backlight current per unit time, and, Based on the current backlight display duration of the dual display screen, a target backlight display duration is obtained, wherein the target backlight display duration is greater than the current backlight display duration, and the current backlight current per unit time is reduced by the same multiple as the current backlight display duration is increased; The current unit backlight current of the dual display screen is adjusted to the target unit backlight current, and the current backlight display duration is adjusted to the target backlight display duration.

2. The method according to claim 1, characterized in that: The determining, by using the current working frame rate, whether the screen-on time of the dual display screens of the VR device is the same includes: If the current operating frame rate is the first frame rate, determining that the screen-on time of the dual display screens is the same; or, If the current working frame rate is the second frame rate, it is determined that the screen-on time of the dual display screens is different, wherein the first frame rate is less than the second frame rate.

3. The method according to claim 1, characterized in that The step of obtaining a target unit backlight current based on the current unit backlight current of the dual display screens includes: Multiplying the current unit backlight current by a specified multiple to obtain the target unit backlight current, wherein the specified multiple is greater than 0 and less than 1; The step of obtaining a target backlight display duration based on the current backlight display duration of the dual display screens includes: The current backlight display duration is divided by the specified multiple to obtain the target backlight display duration.

4. The method according to any one of claims 1 to 3, characterized in that: The type of the dual display screen is a conjoined dual screen.

5. The method according to claim 1, characterized in that: Before periodically acquiring the current working frame rate of the VR device, the method further includes: It is determined that both of the dual display screens are in a display state.

6. A VR device, characterized in that: The device comprises a processor, a first display module, a second display module, a first backlight unit and a second backlight unit, wherein the processor is connected to one end of the first display module through a first interface, connected to one end of the second display module through a second interface, connected to one end of the first backlight unit through a third interface and connected to one end of the second backlight unit through a fourth interface, the other end of the first display module is connected to the other end of the first backlight unit, and the other end of the second display module is connected to the other end of the second backlight unit; The processor is used for, when it is determined that the screen-on time of the first display module and the second display module are the same, determining a target backlight display duration based on the current backlight display duration of the display module, and sending a backlight control instruction to the first display module and the second display module respectively based on the target backlight display duration, and outputting a low-level signal to the first backlight unit and the second backlight unit respectively, wherein the screen-on time includes a screen-on start time and a screen-on end time, and the display module is the first display module or the second display module, and the target backlight display duration is greater than the current backlight display duration, and the backlight control instruction includes a duty cycle corresponding to the target backlight display duration; The first display module is used to convert the duty cycle in the received backlight control instruction into a PWM duty cycle electrical signal, and send the PWM duty cycle electrical signal to the first backlight unit; The second display module is used to convert the duty cycle in the received backlight control instruction into a PWM duty cycle electrical signal, and send the PWM duty cycle electrical signal to the second backlight unit; The first backlight unit is used to adjust the current unit backlight current of the first backlight unit to a target unit backlight current after receiving the low-level signal, and adjust the current backlight display duration of the first backlight unit to the target backlight display duration based on the PWM duty cycle electrical signal, wherein the target unit backlight current is less than the current unit time backlight current of the first backlight unit, and the current unit time backlight current is reduced by the same multiple as the current backlight display duration is increased; The second backlight unit is used to adjust the current unit backlight current of the second backlight unit to the target unit backlight current after receiving the low-level signal, and to adjust the current backlight display duration of the second backlight unit to the target backlight display duration based on the PWM duty cycle electrical signal.

7. The VR device according to claim 6, characterized in that: The first backlight unit includes a first nMOS tube, a first resistor, a second resistor, a first backlight driver chip and a first backlight, the gate of the first nMOS tube is connected to the third interface of the processor, the source of the first nMOS tube is connected to the ground line, the drain of the first nMOS tube is connected to one end of the second resistor, one end of the first resistor is connected to the ground line, the other end of the first resistor and the other end of the second resistor are respectively connected to the first interface of the first backlight driver chip, the first backlight is connected to the second interface of the first backlight driver chip, and the other end of the first display module is connected to the third interface of the first backlight driver chip; wherein: The first nMOS transistor is used to disconnect the source of the first nMOS transistor from the ground line when receiving a low level signal sent by the processor; The first backlight driver chip is used to adjust the current unit backlight current of the first backlight to the target unit backlight current after the source of the first nMOS tube is disconnected from the ground line, and to adjust the current backlight display duration of the first backlight to the target backlight display duration based on the PWM duty cycle electrical signal sent by the first display module.

8. The VR device according to claim 6, characterized in that: The second backlight unit includes a second nMOS tube, a third resistor, a fourth resistor, a second backlight driver chip and a second backlight, the gate of the second nMOS tube is connected to the fourth interface of the processor, the source of the second nMOS tube is connected to the ground line, the drain of the second nMOS tube is connected to one end of the fourth resistor, one end of the third resistor is connected to the ground line, the other end of the third resistor and the other end of the fourth resistor are respectively connected to the first interface of the second backlight driver chip, the second backlight is connected to the second interface of the second backlight driver chip, and the other end of the second display module is connected to the third interface of the second backlight driver chip; wherein: The second nMOS transistor is used to disconnect the source of the second nMOS transistor from the ground line when receiving a low level signal sent by the processor; The second backlight driver chip is used to adjust the current unit backlight current of the second backlight to the target unit backlight current after the source of the second nMOS tube is disconnected from the ground line, and to adjust the current backlight display duration of the second backlight to the target backlight display duration based on the PWM duty cycle electrical signal sent by the second display module.

9. The VR device according to claim 6, characterized in that: The first interface and the second interface of the processor are both MIPI DSI interfaces.

10. The VR device according to claim 6, characterized in that: The third interface and the fourth interface of the processor are both general purpose input and output port GPIO interfaces.

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