CN109003569A - Method, device and equipment for determining tail time of display equipment and storage medium - Google Patents

Abstract

The embodiment of the present invention discloses a method, device, device and storage medium for determining the trailing time of a display device. The method includes: setting the background color of the currently displayed page and the foreground color of the first display area, wherein the first The pattern formed by the foreground color of the display area is switched between the display state and the disappearance state at a first set frequency; the first brightness value of the first display area is obtained, and the trailing time is determined according to the first brightness value, wherein, The measurement frequency of the first brightness value is the second set frequency. To measure the tailing time from the perspective of quantification, the consistency and reproducibility are high, and the stability is good.

Description

Method, device, equipment and storage medium for determining tailing time of display equipment

technical field

The present invention relates to the data processing technology in the display device, in particular to a method, device, device and storage medium for determining the smear time of the display device.

Background technique

When a display device displays moving images, smearing usually occurs. The smearing phenomenon of moving images generally refers to the phenomenon that moving images leave afterimages behind them on a relatively still background, making the boundaries blurred. The degree of afterimage is the most direct measure of the degree of smearing. It is directly proportional to the moving speed of the object, and its proportional coefficient is related to the characteristics of the display device itself, and has a time dimension. The proportional coefficient is called the smearing time.

In the prior art, the determination of the smear time can be realized through the subjective judgment of the single product or the subjective judgment of the comparison machine, and the determination of the brightening smear time and darkening smearing time can also be realized by introducing the smearing time test card and its broadcasting equipment. The time is determined separately. In the process of realizing the present invention, the inventor finds that there are at least the following problems in the prior art: subjective judgments easily cause judgment results to vary from person to person; the method of introducing the trailing time test card and its broadcasting equipment also requires special testing of the test card. design, the method is not universal and the operation is complicated.

Contents of the invention

Embodiments of the present invention provide a method, device, device, and storage medium for determining the smear time of a display device. The smear time is measured from a quantitative perspective, with high consistency, reproducibility, and good stability.

In a first aspect, an embodiment of the present invention provides a method for determining a display device smear time, the method including:

Setting the background color of the currently displayed page and the foreground color of the first display area, wherein the pattern formed by the foreground color of the first display area is switched between the display state and the disappearance state at a first set frequency;

A first brightness value of the first display area is acquired, and a trailing time is determined according to the first brightness value, wherein a measurement frequency of the first brightness value is a second set frequency.

In the second aspect, the embodiment of the present invention also provides a device for determining the tailing time of a display device, the device comprising:

A setting module, configured to set the background color of the currently displayed page and the foreground color of the first display area, wherein the pattern formed by the foreground color of the first display area is switched between the display state and the disappearance state at a first set frequency;

A trailing time calculation module, configured to acquire the first brightness value of the first display area, and determine the trailing time according to the first brightness value, wherein the measurement frequency of the first brightness value is the second set frequency .

In the third aspect, the embodiment of the present invention also provides a display device, including a memory, a processor, and a computer program stored in the memory and operable on the processor. The method for determining the hangover time of a display device described in any one of the embodiments.

In a fourth aspect, an embodiment of the present invention also provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the trailing time of the display device as described in any one of the embodiments of the present invention is realized. method of determination.

In the embodiment of the present invention, the background color of the currently displayed page and the foreground color of the first display area are first set, and then the first brightness value of the first display area is obtained, and the trailing time is determined according to the first brightness value; wherein The pattern formed by the foreground color of the first display area is switched between the displayed state and the disappeared state at a first set frequency, and the measurement frequency of the first brightness value is a second set frequency. To measure the tailing time from the perspective of quantification, the consistency and reproducibility are high, and the stability is good.

Description of drawings

Fig. 1a is a flow chart of a method for determining the tailing time of a display device in Embodiment 1 of the present invention;

Figure 1b is a schematic diagram of the positional relationship between a display device and a luminance tester applicable to Embodiment 1 of the present invention;

Fig. 1c is a state diagram of a black pattern dynamic display process applicable to Embodiment 1 of the present invention;

FIG. 2a is a flow chart of a method for determining the tailing time of a display device in Embodiment 2 of the present invention;

Fig. 2b is a state diagram of another black pattern applicable to the second embodiment of the present invention during the dynamic display process;

Fig. 2c is a graph of brightness and brightness change rate when measuring smearing time applicable to Embodiment 2 of the present invention;

Fig. 3 is a flow chart of a method for determining the trailing time of a display device in Embodiment 3 of the present invention;

Fig. 4 is a schematic structural diagram of a device for determining the trailing time of a display device in Embodiment 4 of the present invention;

FIG. 5 is a schematic structural diagram of a display device in Embodiment 5 of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

When displaying moving images, different display devices have different effects. On some display devices, moving objects or patterns will leave afterimages on the static background, making the boundaries blurred. This phenomenon is the tailing of moving images. . In general, the length of the afterimage is the most direct measure of the degree of smearing. It is proportional to the moving speed of the object, and its proportional coefficient is related to the characteristics of the display device itself, and has a time dimension. The proportional coefficient is called dragging. tail time.

Embodiment one

Figure 1a is a flowchart of a method for determining the smear time of a display device provided by Embodiment 1 of the present invention. This embodiment is applicable to the situation of measuring the smear time of a display device. The apparatus for determining the hangover time of the equipment is implemented, and the apparatus can be implemented by means of software and/or hardware. Referring to Figure 1a, the method specifically may include the following steps:

S110. Set the background color of the currently displayed page and the foreground color of the first display area, wherein the pattern formed by the foreground color of the first display area is switched between the display state and the disappearance state at a first set frequency.

Specifically, in the process of measuring the trailing time, the display device is used to dynamically display the target pattern, and the specific display content and color of the target pattern are not specifically limited. Optionally, the background color is set to any solid color P1, and the foreground color is set to another solid color P2 different from the background color, by measuring the smearing of the pattern formed by the solid color P2 under the pure color P1. In a specific example, to measure the smearing effect of a black pattern moving against a white background, set the background color of the currently displayed page to white, set the foreground color of the first display area to black, that is, the target pattern is a black pattern, P1 takes white and P2 takes black. Wherein, the black foreground color of the first display area constitutes a black pattern, and the black pattern is switched between the display state and the disappearance state at a first set frequency.

Exemplarily, the first setting frequency may be 5/16 Hz, that is, switching between the display state and the disappearance state is performed every 3200 ms. For example, for a 60Hz display screen, if the screen display frequency is defined as 200 frames, the switching time is 200*16ms, the background color remains unchanged, and the foreground color switches between the display state and the disappearing state every 3200ms, that is, the black pattern Switch between display state and disappear state every 3200ms. Specifically, both the display time and the disappearance time can be defined as 3200ms.

S120. Acquire a first brightness value of the first display area, and determine a trailing time according to the first brightness value, wherein a measurement frequency of the first brightness value is a second set frequency.

Specifically, when the pattern formed by the foreground color of the first display area is switched between the display state and the disappearance state at the first set frequency, the first brightness value of the first display area is acquired in real time. In a specific example, the brightness of the first display area is captured and recorded in real time by a brightness tester at a second set frequency. Wherein, the second set frequency is 200 Hz, that is, the brightness of the first display area is measured every 5 ms. Optionally, place the display device and the luminance tester in a standard darkroom environment, where the darkroom environment requires stable light intensity in the darkroom under different external environments, the internal light source needs to be turned off or isolated, and the wall and ground reflectance refer to the Nissan darkroom standard : The reflective rate of the wall is 60%, and the reflective rate of the ground is 20%.

Optionally, a non-contact method is used to place a high-precision and high-resolution luminance tester, such as a CCD (Charge-coupled Device, charge-coupled device) grayscale and chromaticity analyzer, at a certain distance from the display screen of the display device, The specific installation location is not specifically limited, as long as the brightness of the first display area can be measured. Exemplarily, the luminance tester may be placed at 100 cm from the center of the display screen of the display device. During the actual measurement process, the fixed luminance tester and the display device do not move. The trailing time is determined according to the change of the first brightness value measured when the pattern formed by the foreground color of the first display area is switched between the display state and the disappearance state at the first set frequency.

FIG. 1b shows a schematic diagram of the positional relationship between a display device and a luminance tester, where 130 denotes a display device, and 140 denotes a luminance tester. Figure 1c shows a state diagram of a dynamic display process of a black pattern, where 150 represents the current display page of the display device, 160 represents the background color of the current display page, 170 represents the foreground color of the first display area, and 180 represents the brightness test The test mark on the first display area of the luminance tester can be used to determine whether the installation position of the luminance tester can accurately measure the luminance of the first display area.

In the embodiment of the present invention, the background color of the currently displayed page and the foreground color of the first display area are first set, and then the first brightness value of the first display area is obtained, and the trailing time is determined according to the first brightness value; wherein The pattern formed by the foreground color of the first display area is switched between the displayed state and the disappeared state at a first set frequency, and the measurement frequency of the first brightness value is a second set frequency. To measure the tailing time from the perspective of quantification, the consistency and reproducibility are high, and the stability is good.

Embodiment two

Fig. 2a is a flow chart of a method for determining the trailing time of a display device provided by Embodiment 2 of the present invention. This embodiment is implemented on the basis of the above embodiments. Referring to Fig. 2a, the method may specifically include the following steps:

S210. Set the background color of the currently displayed page and the foreground color of the first display area, wherein the pattern formed by the foreground color of the first display area is switched between the display state and the disappearance state at a first set frequency.

S220. Acquire a first brightness value of the first display area, and acquire a second brightness value of the second display area.

Specifically, while acquiring the first luminance value of the first display area, the second luminance value of the second display area is acquired, wherein the second display area is an area other than the first display area in the current display page, so The color of the second display area is the background color. The measurement frequency of the first brightness value is the second set frequency, and the measurement frequency of the second brightness value is the second set frequency.

In a specific example, Fig. 2b shows another state diagram of a black pattern in the dynamic display process, wherein 150 represents the current display page of the display device, 160 represents the background color of the current display page, and 170 represents the first display The foreground color of the area, 180 represents the test mark of the brightness tester in the first display area, and 240 represents the background color of the second display area.

S230. If the difference between the first luminance value and the second luminance value satisfies the set smearing condition, according to each measurement moment of the first display area and each measurement moment of the second display area Determine the smear time.

Specifically, the first luminance value is recorded as Y1, and the second luminance value is Y0. Exemplarily, Y0 can take a value of 350cd/m ² , and the difference between the first luminance value and the second luminance value is recorded as ΔY, ΔY =Y1-Y0. In a specific example, the set trailing condition may be that the difference is smaller than a set brightness threshold, for example, 7cd/m ² . When the difference between the first luminance value and the second luminance value is less than the set luminance threshold, record each measurement moment of the first luminance value in the first display area and each measurement moment of the second luminance value in the second display area, The tailing time is determined according to the relationship between various measurement moments, wherein the interval between adjacent measurement moments is a measurement period corresponding to the second set frequency, and in a specific example, the measurement period may be 5 ms.

In the embodiment of the present invention, by acquiring the first luminance value of the first display area and the second luminance value of the second display area, the difference between the first luminance value and the second luminance value satisfies the set When the smearing condition is selected, the smearing time is determined according to each measurement moment of the first display area and each measurement moment of the second display area. The measurement of the second luminance value of the second display area is supplemented synchronously, that is, the measurement of the luminance value of the background color is combined with the first luminance value of the first display area to determine the trailing time, which improves the accuracy of measuring the trailing time Accuracy.

On the basis of the above technical solution, "if the difference between the first luminance value and the second luminance value satisfies the set smearing condition, then according to each measurement moment of the first display area and the Each measurement moment of the above-mentioned second display area determines the trailing time" can be specifically realized in the following manner:

Making a difference between the first luminance value and the second luminance value collected at the same time, and doing business between the difference and the second luminance value, to obtain the brightness change rate corresponding to the current moment; if the pattern formed by the foreground color is determined by the display state Switching to the disappearing state or switching from the disappearing state to the displaying state, counting the number of measurements in which the brightness change rate is greater than the smearing threshold and less than 1, and then determining the smearing time according to the number of measurements and the measurement cycle.

Specifically, the first luminance value and the second luminance value collected at the same time are denoted as Y1 and Y0 respectively, and the difference between the first luminance value and the second luminance value is denoted as ΔY, ΔY=Y1-Y0, and The brightness change rate at the current moment is recorded as K, K=|ΔY/Y0|, and the K value between 0 and 1 indicates the process of dynamic response in the display screen of the display device, which can be used to measure the trailing time, for example, greater than A smear time of 0.02 less than 1 is noticeable.

Optionally, the smearing threshold is 0.02, and when the pattern formed by the current scene is switched from the display state to the disappearance state or from the disappearance state to the display state, the first brightness value of the first display area when 0.02<K<1 is counted The number of measurements of is recorded as the number of measurements C, and the tailing time is determined according to C and the measurement cycle. Wherein, when the brightness change rate K is close to 0, it means that the color of the first display area is the background color, and when the brightness change rate K is close to 1, it means that the color of the first display area is the foreground color.

In a specific example, FIG. 2c shows a graph of brightness and brightness change rate when measuring the smear time, wherein the abscissa represents the number of times of measurement of the first brightness value of the first display area, for example, 23 indicates the 23rd measurement, and the time between adjacent measurements is the measurement period. The vertical axis on the left side of Figure 2c indicates the first brightness value, and the unit is 350cd/m ² . The vertical axis on the right side of Figure 2c indicates the brightness change rate, which is infinite 250 represents the brightness change curve of the first display area, 260 represents the brightness change rate curve, and 270 represents the brightness collection point satisfying the trailing condition. The application scenario in Fig. 2c may be the change process of the first display area from the background color to the foreground color and then to the background color, that is, the process in which the pattern formed by the foreground color is switched from the disappearing state to the display state and then switched to the disappearing state . In Figure 2c, the number of measurements C is 6, that is, from the 39th to the 44th, where the brightness change rate at the 44th measurement is 0.0228, and the brightness change rate at the 45th measurement is 0.0057, then the tailing time It is the product of the measurement times C and the measurement period. In this specific example, the smear time is 5ms*6=30ms. The smear time is determined by combining the measurement times of the luminance change rate that meets the conditions and the corresponding measurement cycle, and the smear time is measured by the quantization angle, which is more accurate, more stable, and highly reproducible than subjectively judging the smear time.

Embodiment three

Fig. 3 is a flow chart of a method for determining the smear time of a display device provided by Embodiment 3 of the present invention. On the basis of the above embodiments, this embodiment is concerned with "obtaining the first brightness value of the first display area, Determining the trailing time according to the first brightness value" is optimized. Referring to Figure 3, the method specifically may include the following steps:

S310. Set the background color of the currently displayed page and the foreground color of the first display area, wherein the pattern formed by the foreground color of the first display area is switched between the display state and the disappearance state at a first set frequency.

S321. If the pattern composed of the foreground color is switched from the display state to the disappearing state, record the brightness values of the pattern at different measurement times, and determine the trailing time according to the state switching time and the time when the first brightness threshold appears.

Specifically, when the pattern composed of the foreground color switches from the display state to the disappearing state, record the brightness values of the pattern at different measurement times, and determine the trailing time in combination with the state switching time and the time when the first brightness threshold appears. Wherein, the first brightness threshold is the critical brightness when the foreground color is switched to the background color in the first display area, and the measurement frequency of the first brightness value is the second set frequency. In a specific example, the critical brightness when the foreground color is switched to the background color is Q1, the state switching time is T1, and the time when Q1 appears is T2, then T2-T1 is the corresponding trailing time.

S322. If the pattern composed of the foreground color switches from the disappearing state to the displaying state, record the brightness values of the pattern at different measurement times, and determine the trailing time according to the state switching time and the time when the second brightness threshold appears.

Specifically, when the pattern composed of the foreground color switches from the disappearing state to the displaying state, record the brightness values of the pattern at different measurement times, and determine the trailing time in combination with the state switching time and the time when the second brightness threshold appears. Wherein, the second brightness threshold is the critical brightness when the background color is switched to the foreground color in the first display area. In a specific example, the critical brightness when the background color is switched to the foreground color is Q2, the state switching time is T3, and the time when Q2 appears is T4, then T4-T3 is the corresponding trailing time.

In the embodiment of the present invention, by recording the brightness values of the pattern at different measurement times when it is determined that the pattern composed of the foreground color is switched from the display state to the disappearing state or the pattern composed of the foreground color is switched from the disappearing state to the display state, according to the state The hangover time is determined by the switching time and the time when the first brightness threshold occurs or the state switching time and the time when the second brightness threshold occurs. The first brightness threshold and the second brightness threshold can be set according to the different requirements of users, and then the tailing time can be determined. The operation is simple and the calculation is convenient

Embodiment Four

FIG. 4 is a schematic structural diagram of an apparatus for determining the hangover time of a display device provided in Embodiment 4 of the present invention, and the apparatus is suitable for implementing a method for determining the hangover time of a display device provided in the embodiment of the present invention. As shown in Figure 4, the device may specifically include:

A setting module 410, configured to set the background color of the currently displayed page and the foreground color of the first display area, wherein the pattern formed by the foreground color of the first display area is switched between the display state and the disappearance state at a first set frequency ;

A trailing time calculation module 420, configured to acquire a first brightness value of the first display area, and determine a trailing time according to the first brightness value, wherein the measurement frequency of the first brightness value is the second setting frequency.

Further, it also includes:

A brightness value acquisition module, configured to acquire a second brightness value of the second display area, wherein the color of the second display area is the background color, and the measurement frequency of the second brightness value is the second set frequency;

Correspondingly, the trailing time calculation module 420 is specifically used for:

When it is determined that the difference between the first brightness value and the second brightness value satisfies the set smearing condition, determine according to each measurement moment of the first display area and each measurement moment of the second display area The tailing time, wherein the interval between adjacent measurement moments is a measurement period corresponding to the second set frequency.

Further, the trailing time calculation module 420 is specifically used for:

Making a difference between the first luminance value and the second luminance value collected at the same time, and doing business between the difference and the second luminance value, to obtain the luminance change rate corresponding to the current moment;

If the pattern formed by the foreground color is switched from the display state to the disappearance state or from the disappearance state to the display state, then count the number of measurements that the brightness change rate is greater than the trailing threshold and less than 1, then according to the number of measurements and the obtained The measurement period described above is used to determine the tailing time.

Further, the trailing time calculation module 420 is also used for:

If the pattern composed of the foreground color is switched from the display state to the disappearing state, record the brightness values of the pattern at different measurement moments, and determine the trailing time according to the state switching moment and the moment when the first brightness threshold appears, wherein the first A brightness threshold is the critical brightness when the foreground color is switched to the background color in the first display area;

If the pattern composed of the foreground color is switched from the disappearance state to the display state, record the brightness values of the pattern at different measurement moments, and determine the trailing time according to the state switching moment and the moment when the second brightness threshold appears, wherein the first The second brightness threshold is the critical brightness when the background color is switched to the foreground color in the first display area.

The device for determining the hangover time of a display device provided in an embodiment of the present invention can execute the method for determining a hangover time of a display device provided in any embodiment of the present invention, and has corresponding functional modules and beneficial effects for executing the method.

Embodiment five

FIG. 5 is a schematic structural diagram of a display device provided by Embodiment 5 of the present invention. Figure 5 shows a block diagram of an exemplary display device 12 suitable for use in implementing embodiments of the present invention. The display device 12 shown in FIG. 5 is only an example, and should not limit the functions and scope of use of this embodiment of the present invention.

As shown in FIG. 5, display device 12 takes the form of a general-purpose computing device. Components of display device 12 may include, but are not limited to: one or more processors or processing units 16 , system memory 28 , bus 18 connecting various system components including system memory 28 and processing unit 16 .

Bus 18 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processor, or a local bus using any of a variety of bus structures. These architectures include, by way of example, but are not limited to Industry Standard Architecture (ISA) bus, Micro Channel Architecture (MAC) bus, Enhanced ISA bus, Video Electronics Standards Association (VESA) local bus, and Peripheral Component Interconnect ( PCI) bus.

Display device 12 typically includes a variety of computer system readable media. These media can be any available media that can be accessed by display device 12 and include both volatile and nonvolatile media, removable and non-removable media.

System memory 28 may include computer system readable media in the form of volatile memory, such as random access memory (RAM) 30 and/or cache memory 32 . The display device 12 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 34 may be used to read and write to non-removable, non-volatile magnetic media (not shown in FIG. 5, commonly referred to as a "hard drive"). Although not shown in FIG. 5, a disk drive for reading and writing to removable nonvolatile disks (e.g., "floppy disks") may be provided, as well as for removable nonvolatile optical disks (e.g., CD-ROM, DVD-ROM or other optical media) CD-ROM drive. In these cases, each drive may be connected to bus 18 via one or more data media interfaces. System memory 28 may include at least one program product having a set (eg, at least one) of program modules configured to perform the functions of various embodiments of the present invention.

A program/utility 40 having a set (at least one) of program modules 42 may be stored, for example, in system memory 28, such program modules 42 including - but not limited to - an operating system, one or more application programs, other Program modules, as well as program data, each or some combination of these examples may include implementations of network environments. Program modules 42 generally perform the functions and/or methodologies of the described embodiments of the invention.

Display device 12 may also communicate with one or more external devices 14 (e.g., a keyboard, pointing device, display 24, etc.), may also communicate with one or more devices that enable a user to interact with display device 12, and/or communicate with Any device (eg, network card, modem, etc.) that enables the display device 12 to communicate with one or more other computing devices. Such communication may occur through input/output (I/O) interface 22 . Moreover, the display device 12 can also communicate with one or more networks (such as a local area network (LAN), a wide area network (WAN) and/or a public network such as the Internet) through the network adapter 20 . As shown, network adapter 20 communicates with other modules of display device 12 via bus 18 . It should be appreciated that although not shown in FIG. 5, other hardware and/or software modules may be used in conjunction with display device 12, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape Drives and data backup storage systems, etc.

The processing unit 16 executes various functional applications and data processing by running the program stored in the system memory 28, for example, realizing the method for determining the tailing time of the display device provided by the embodiment of the present invention:

That is, when the processing unit executes the program, it realizes: setting the background color of the currently displayed page and the foreground color of the first display area, wherein the pattern formed by the foreground color of the first display area is set at a first set frequency Switching between the display state and the disappearance state; obtaining a first brightness value of the first display area, and determining a trailing time according to the first brightness value, wherein the measurement frequency of the first brightness value is the second setting frequency.

Embodiment six

Embodiment 6 of the present invention provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the method for determining the trailing time of a display device as provided in all invention embodiments of the present application is implemented:

That is, when the program is executed by the processor, it realizes: setting the background color of the currently displayed page and the foreground color of the first display area, wherein the pattern formed by the foreground color of the first display area is displayed at the first set frequency switching between the state and the disappearing state; obtaining a first brightness value of the first display area, and determining a trailing time according to the first brightness value, wherein the measurement frequency of the first brightness value is a second set frequency.

Any combination of one or more computer readable medium(s) may be utilized. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples (non-exhaustive list) of computer readable storage media include: electrical connections with one or more leads, portable computer disks, hard disks, random access memory (RAM), read only memory (ROM), Erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination of the above. In this document, a computer-readable storage medium may be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.

A computer readable signal medium may include a data signal carrying computer readable program code in baseband or as part of a carrier wave. Such propagated data signals may take many forms, including - but not limited to - electromagnetic signals, optical signals, or any suitable combination of the foregoing. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device. .

Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including - but not limited to - wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

Computer program code for carrying out the operations of the present invention may be written in one or more programming languages, or combinations thereof, including object-oriented programming languages—such as Java, Smalltalk, C++, and conventional Procedural Programming Language - such as "C" or a similar programming language. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In cases involving a remote computer, the remote computer can be connected to the user computer through any kind of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computer (such as through an Internet service provider). Internet connection).

Note that the above are only preferred embodiments of the present invention and applied technical principles. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present invention, and the present invention The scope is determined by the scope of the appended claims.

Claims (10)

1. A method for determining the tailing time of a display device, characterized in that it comprises: Setting the background color of the currently displayed page and the foreground color of the first display area, wherein the pattern formed by the foreground color of the first display area is switched between the display state and the disappearance state at a first set frequency; A first brightness value of the first display area is acquired, and a trailing time is determined according to the first brightness value, wherein a measurement frequency of the first brightness value is a second set frequency. 2. The method according to claim 1, further comprising: Acquiring a second brightness value of the second display area, wherein the color of the second display area is the background color, and the measurement frequency of the second brightness value is the second set frequency; Correspondingly, determining the trailing time according to the first brightness value includes: If the difference between the first luminance value and the second luminance value satisfies the set smearing condition, determine the smearing according to each measurement moment of the first display area and each measurement moment of the second display area Tail time, wherein the interval between adjacent measurement moments is the measurement period corresponding to the second set frequency. 3. The method according to claim 2, wherein if the difference between the first luminance value and the second luminance value satisfies a set smearing condition, then according to the first display area Each measurement moment of each measurement moment and each measurement moment of the second display area determine the smear time, including: Making a difference between the first luminance value and the second luminance value collected at the same time, and doing business between the difference and the second luminance value, to obtain the luminance change rate corresponding to the current moment; If the pattern formed by the foreground color is switched from the display state to the disappearance state or from the disappearance state to the display state, then count the number of measurements that the brightness change rate is greater than the trailing threshold and less than 1, then according to the number of measurements and the obtained The measurement period described above is used to determine the tailing time. 4. The method according to claim 1, wherein the first brightness value of the first display area is obtained, and the trailing time is determined according to the first brightness value, wherein the measurement of the first brightness value The frequency is the second set frequency, and also includes: If the pattern composed of the foreground color is switched from the display state to the disappearing state, record the brightness values of the pattern at different measurement moments, and determine the trailing time according to the state switching moment and the moment when the first brightness threshold appears, wherein the first A brightness threshold is the critical brightness when the foreground color is switched to the background color in the first display area; If the pattern composed of the foreground color is switched from the disappearance state to the display state, record the brightness values of the pattern at different measurement moments, and determine the trailing time according to the state switching moment and the moment when the second brightness threshold appears, wherein the first The second brightness threshold is the critical brightness when the background color is switched to the foreground color in the first display area. 5. A device for determining the trailing time of display equipment, characterized in that it comprises: A setting module, configured to set the background color of the currently displayed page and the foreground color of the first display area, wherein the pattern formed by the foreground color of the first display area is switched between the display state and the disappearance state at a first set frequency; A trailing time calculation module, configured to acquire the first brightness value of the first display area, and determine the trailing time according to the first brightness value, wherein the measurement frequency of the first brightness value is the second set frequency . 6. The device according to claim 5, further comprising: A brightness value acquisition module, configured to acquire a second brightness value of the second display area, wherein the color of the second display area is the background color, and the measurement frequency of the second brightness value is the second set frequency; Correspondingly, the tailing time calculation module is specifically used for: When it is determined that the difference between the first brightness value and the second brightness value satisfies the set smearing condition, determine according to each measurement moment of the first display area and each measurement moment of the second display area The tailing time, wherein the interval between adjacent measurement moments is a measurement period corresponding to the second set frequency. 7. The device according to claim 6, wherein the trailing time calculation module is specifically used for: Making a difference between the first luminance value and the second luminance value collected at the same time, and doing business between the difference and the second luminance value, to obtain the luminance change rate corresponding to the current moment; If the pattern formed by the foreground color is switched from the display state to the disappearance state or from the disappearance state to the display state, then count the number of measurements that the brightness change rate is greater than the trailing threshold and less than 1, then according to the number of measurements and the obtained The measurement period described above is used to determine the tailing time. 8. The device according to claim 5, wherein the trailing time calculation module is also used for: If the pattern composed of the foreground color is switched from the display state to the disappearing state, record the brightness values of the pattern at different measurement moments, and determine the trailing time according to the state switching moment and the moment when the first brightness threshold appears, wherein the first A brightness threshold is the critical brightness when the foreground color is switched to the background color in the first display area; If the pattern composed of the foreground color is switched from the disappearance state to the display state, record the brightness values of the pattern at different measurement moments, and determine the trailing time according to the state switching moment and the moment when the second brightness threshold appears, wherein the first The second brightness threshold is the critical brightness when the background color is switched to the foreground color in the first display area. 9. A display device, comprising a memory, a processor, and a computer program stored on the memory and operable on the processor, characterized in that, when the processor executes the program, it realizes any of claims 1-4 a method as described. 10. A computer-readable storage medium, on which a computer program is stored, wherein, when the program is executed by a processor, the method according to any one of claims 1-4 is implemented.