CN115881008A

CN115881008A - Picture detection method, display panel, device and computer readable storage medium

Info

Publication number: CN115881008A
Application number: CN202211652744.2A
Authority: CN
Inventors: 周满城; 张元平; 王爽; 李荣荣
Original assignee: HKC Co Ltd; Chongqing HKC Optoelectronics Technology Co Ltd
Current assignee: HKC Co Ltd; Chongqing HKC Optoelectronics Technology Co Ltd
Priority date: 2022-12-19
Filing date: 2022-12-19
Publication date: 2023-03-31

Abstract

The application discloses a picture detection method, a display panel, a device and a computer readable storage medium, and belongs to the technical field of display. The picture detection method comprises the following steps: detecting the minimum detection unit line by line in a preset detection area; if the number of the minimum detection units in the detection area is detected to be larger than a first preset value, starting an image detection function; after the picture detection function is started, if the number of the minimum detection units in the detection area is detected to be smaller than a second preset value, the picture detection function is exited, wherein the second preset value is smaller than the first preset value. The method for fixing the detection area by using two coordinates is eliminated, the detection mode is changed into line-by-line detection, the entry condition of the PDF function is perfected, more application conditions are covered, the defects of the detection mode for starting the PDF function in the prior art are overcome, and the applicability of the picture detection function of the display panel is enhanced.

Description

Picture detection method, display panel, device and computer readable storage medium

Technical Field

The present disclosure relates to the field of display technologies, and in particular, to a method, a display panel, a device, and a computer-readable storage medium for detecting an image.

Background

When a TFT-LCD (Thin film transistor liquid crystal display) is driven, a VCOM (common electrode) is easily interfered by a data line to generate voltage jitter, which further causes abnormal phenomena such as crosstalk of a display picture.

Currently, in order to improve the problem, a PDF (picture detection) function is introduced, but the detection method for activating the PDF function in the prior art is to draw a rectangular area as a detection area based on two set coordinates, and then calculate a polarity inversion area in the detection area to determine whether to activate the PDF function.

However, this approach has the following disadvantages: if a certain display polarity assembling region causing abnormal dithering of VCOM is an abnormal region, the detection function will fail, and since the polarity inversion area calculated in the above manner does not reach the set threshold, even though the display panel has an abnormal picture, the TCON (timing controller) cannot start the PDF function because the detection region cannot cover the abnormal region.

Disclosure of Invention

The present application is directed to a method, a display panel, a device and a computer readable storage medium for detecting an image, and aims to overcome the drawbacks of the detection method for activating a PDF function in the prior art and enhance the applicability of the image detection function of the display panel.

To achieve the above object, the present application provides a method for detecting an image, including:

detecting the minimum detection unit line by line in a preset detection area;

if the number of the minimum detection units in the detection area is larger than a first preset value, starting an image detection function;

after the image detection function is started, if the number of the minimum detection units in the detection area is detected to be smaller than a second preset value, the image detection function is exited, wherein the second preset value is smaller than the first preset value.

Optionally, before the step of detecting the minimum detection unit line by line in the preset detection region, the picture detection method further includes:

acquiring a preset detection configuration, and setting a preset detection area according to the detection configuration.

Optionally, the step of setting a preset detection region according to the detection configuration includes:

and if the detection configuration comprises a starting detection line number and a stopping detection line number, setting a display area between the starting detection line number and the stopping detection line number as a preset detection area.

Optionally, the step of setting a preset detection region according to the detection configuration further includes:

and if the detection configuration does not comprise the initial detection line number and the final detection line number, setting the whole display area as a preset detection area.

Optionally, before the step of detecting the minimum detection units line by line in the preset detection region, the picture detection method further includes:

at least one pixel point is selected as a minimum detection unit.

Optionally, after the step of selecting at least one pixel point as the minimum detection unit, the image detection method further includes:

and setting the gray scale corresponding to the sub-pixel of the pixel point according to a preset index.

Optionally, the step of starting the image detection function includes:

and outputting the high-low level time sequence of the polarity inversion control signal to a driving circuit so that the driving circuit changes the corresponding electrode polarity according to the high-low level time sequence.

Further, to achieve the above object, the present application also provides a display device including:

the detection module is used for detecting the minimum detection unit line by line in a preset detection area;

the execution module is used for starting a picture detection function if the number of the minimum detection units in the detection area is detected to be greater than a first preset value;

the execution module is further configured to, after the image detection function is started, if it is detected that the number of the minimum detection units in the detection area is smaller than a second preset value, quit the image detection function, where the second preset value is smaller than the first preset value.

In addition, to achieve the above object, the present application also provides a display panel including: the image detection method comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the steps of the image detection method are realized when the computer program is executed by the processor.

In addition, to achieve the above object, the present application further provides a computer readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the computer program implements the steps of the image detection method as described above.

The application provides an image detection method, a display panel, a device and a computer readable storage medium, which overcome the disadvantages of the detection mode for starting the PDF function in the prior art. In the picture detection method, firstly, the minimum detection unit is detected line by line in a preset detection area; if the number of the minimum detection units in the detection area is detected to be larger than a first preset value, starting an image detection function; after the image detection function is started, if the number of the minimum detection units in the detection area is detected to be smaller than a second preset value, the image detection function is exited, wherein the second preset value is smaller than the first preset value. According to the method, the method that two coordinate fixed detection areas are used and detection is carried out in the detection areas is eliminated, the detection mode is changed into line-by-line detection, the entry condition of the PDF function is perfected, more application conditions are covered, and the applicability of the PDF function of the display panel is enhanced.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only a part of the embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of a TFT-LCD driving method;

FIG. 2 is a simplified circuit diagram of each sub-pixel control circuit;

FIG. 3 is a waveform illustrating data S-out compared to VCOM;

FIG. 4 is a schematic view of a polarity inversion scheme for a plurality of rows of pixel electrodes;

FIG. 5 is a diagram illustrating a detection region division method in the prior art;

fig. 6 is a flowchart illustrating an image detection method according to an embodiment of the present application;

FIG. 7 is a schematic diagram illustrating an adjustable timing interval of a polarity inversion signal according to an embodiment of the present application;

fig. 8 is a schematic diagram illustrating an adjustment mode of the polarity-inverted signal according to the polarity of the pixel electrode according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a display device according to an embodiment of the present application;

fig. 10 is a schematic diagram of a hardware structure of a display panel according to an embodiment of the present disclosure.

The reference numbers indicate:

reference numerals	Name (R)	Reference numerals	Name (R)
				V1+	The first path is higher than VCOM	G1	Switching signal transmission line
V2-	The second path is lower than VCOM	S	Data signal transmission line
				V3+	The third path ratio VCOM is higher	T	Control switch
Gate	Gate drive signal	Clc	Liquid crystal capacitor
				Gn-1	Gn-1 row signal	Cst	Storage capacitor
Gn	Gn row signal	VCOM	Common pole
				Gn+1	Gn +1 row signal	S-out	Data output signal
Off	Close off	On	Is opened

Detailed Description

In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the embodiments of the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the embodiments of the present application with unnecessary detail.

It should be noted that, although a logical order is illustrated in the flowcharts, in some cases, the steps illustrated or described may be performed in an order different from that in the flowcharts. The terms first, second and the like in the description and in the claims, and the drawings described above, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

It should also be appreciated that reference throughout the specification to "one embodiment" or "some embodiments," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless expressly specified otherwise.

Compared with the traditional CRT (Cathode Ray Tube) television and the plasma television, the liquid crystal television has the advantages of power saving, and the liquid crystal has half of the power consumption of the CRT with the same size and is much lower than that of plasma; compared with the traditional CRT, the liquid crystal is better in environmental protection, because the liquid crystal display does not have high-voltage components like the CRT, the situation that radioactive rays exceed standards caused by high voltage can not occur, the display area of the liquid crystal display does not radiate at all, only a small amount of Electromagnetic waves from a driving circuit can reduce EMI (Electromagnetic Interference) as long as a shell is sealed strictly, and the radiation index of the liquid crystal display is generally lower than that of the CRT; the liquid crystal display has a large viewing area, achieves the display purpose by controlling the state of liquid crystal molecules through electrodes on a display screen, does not increase the volume in proportion even if the screen is enlarged (the wall hanging function is provided for a plurality of products because the thickness is not increased only by increasing the size, and the space can be saved for a user), is much lighter than the traditional display with the same display area in weight, and the weight of the liquid crystal television is about 1/3 of that of the traditional television, so the liquid crystal display is also called as a cold display or an environment-friendly display, and the liquid crystal display is developing towards higher resolution, higher display image quality and larger size at present.

When the TFT-LCD is driven, the driving method is Line-by-Line (Line-by-Line scanning), referring to fig. 1, when the Gn signal is high, the TFT corresponding to the Line is turned on, data in the column direction can be written into the pixel, a simplified schematic diagram of each sub-pixel can be referred to fig. 2, fig. 2 includes T for controlling the switch, a liquid crystal capacitor Clc, a storage capacitor Cst, a G Line for transmitting the switch signal, and an S Line for transmitting data, and one end of Cst and Clc is a pixel electrode and the other end is a common electrode (VCOM). Since the charging and discharging of the liquid crystal is a structure of the capacitor, if the liquid crystal is driven by a DC (direct current) circuit, the two ends of the capacitor will inevitably generate the remaining charges, and the image will appear on the display screen, in order to avoid this phenomenon, the DC is generally changed to AC (alternating current), and the liquid crystal works depending on the voltage difference, the rotation difference, and the light transmission amount at the two ends, as shown in the waveform diagram of data S-out in fig. 3, fig. 4 is one of the polarity inversion modes (dot inversion) corresponding to the whole screen, "±" + "is higher than VCOM, i.e.," + "and" - "is lower than VCOM, and VCOM is easily interfered by the data line to generate the voltage jitter, which will cause the screen to generate the abnormality such as crosstalk.

The reason why VCOM is disturbed is that when this display screen displays, all data lines with positive and negative polarities are superimposed on VCOM, and if it is + the VCOM voltage is dithered upwards, and if it is-the VCOM voltage is dithered downwards. The PDF flow generally has three phases: a signal receiving stage: the TCON receives front-end input data; a picture detection stage: TCON automatically detects the picture; PDF execution phase: the TCON outputs DOT _ C/POLC/POL signals according to setting; as shown in fig. 5, in the prior art, two coordinates (V _ start, H _ start), (V _ end, H _ end) are generally set in the display area, and a rectangle is drawn by the coordinates to obtain a detection area, and then the area is calculated in the detection area, when the reversed area occupies a part of the whole detection area (generally ≧ 85%), the PDF function is activated; however, this method has a great disadvantage that when a certain display polarity matching region causing abnormal dither of VCOM is an abnormal region, the detection function will be disabled, and when the calculated inversion area does not reach 80% of the detection region, although drawn differently, TCON cannot be recognized, because: the two coordinates (V _ start, H _ start), (V _ end, H _ end) do not cover the special-shaped area, and the detection area occupied by the special-shaped area is less than 85%.

Accordingly, embodiments of the present application provide an image detection method, a display panel, an apparatus, and a computer-readable storage medium, which overcome the disadvantages of the detection method for activating the PDF function in the prior art. In the picture detection method, a minimum detection unit is detected line by line in a preset detection area; if the number of the minimum detection units in the detection area is detected to be larger than a first preset value, starting an image detection function; after the image detection function is started, if the number of the minimum detection units in the detection area is detected to be smaller than a second preset value, the image detection function is exited, wherein the second preset value is smaller than the first preset value. According to the method, the method that two coordinate fixed detection areas are used and detection is carried out in the detection areas is eliminated, the detection mode is changed into line-by-line detection, the entry condition of the PDF function is perfected, more application conditions are covered, and the applicability of the PDF function of the display panel is enhanced.

The image detection method, the display panel, the apparatus and the computer readable storage medium provided in the embodiments of the present application are specifically described in the following embodiments, first, the image detection method in the embodiments of the present application is described.

Referring to fig. 6, fig. 6 is a flowchart illustrating an image detection method according to an embodiment of the present application, where the image detection method may be applied to a display panel, as shown in fig. 6, the image detection method according to the present embodiment includes steps S10 to S30.

Step S10, detecting the minimum detection unit line by line in a preset detection area;

it should be noted that, in this embodiment, the execution main body is a display panel, and the display panel dynamically detects whether the number of the minimum detection units exceeds the standard in the preset detection area through the TCON, and further determines whether the display screen is abnormal according to the detection result. The preset detection area can be the whole display area, or the area to be detected between the specified initial detection line number and the specified termination detection line number, and can be flexibly adjusted according to the specific requirements in practical application.

Further, in some possible embodiments, before the step S10, the image detection method further includes:

step A, acquiring a preset detection configuration, and setting a preset detection area according to the detection configuration.

It should be understood that, in the present embodiment, the preset detection configuration may be set by the administrator, for example, the TCON setting detects the minimum detection unit from the nth row until the nth + m row is finished, and the display area between the nth row and the nth + m row is the preset detection area; for example, if the specific detection line number is not set, the default detection area is the entire display area.

Further, in some possible embodiments, the step of setting a preset detection area according to the detection configuration in step S01 includes:

step A1, if the detection configuration comprises a starting detection line number and a stopping detection line number, setting a display area between the starting detection line number and the stopping detection line number as a preset detection area.

In this embodiment, if the obtained detection configuration includes the starting detection line number and the ending detection line number, for example, the TCON sets the minimum detection unit starting from the nth line until the nth + mth line ends, the starting detection line number is the nth line, the ending detection line number is the nth + mth line, and the display area between the nth line and the nth + mth line is the preset detection area.

Further, in some possible embodiments, the step of setting a preset detection area according to the detection configuration in step S01 further includes:

step A2, if the detection configuration does not include the initial detection line number and the final detection line number, setting the entire display area as a preset detection area.

In this embodiment, if the obtained detection configuration does not include the starting detection line number and the ending detection line number, the preset detection area is the whole display area by default.

and step B, selecting at least one pixel point as a minimum detection unit.

Further, in some possible embodiments, after the step B, the frame detection method further includes:

and C, setting the gray scale corresponding to the sub-pixel of the pixel point according to a preset index.

It should be noted that, in this embodiment, the minimum detection unit may be one pixel or a set of multiple pixels, and the preset index may be a brightness parameter of three colors of RGB in each pixel.

Illustratively, taking four pixels as an example, the first pixel is RGB G dark and RB light, and the second pixel is RGB RB dark and G light; the third pixel has dark RGB, RB and bright G; RGB, G dark, RB bright of the fourth pixel; the key point is that four pixels are the minimum detection unit, i.e. the gray scale of the corresponding sub-pixel is not limited, and the gray scale corresponding to the RGB of each pixel can be set independently, which is not limited in this embodiment.

Step S20, if the number of the minimum detection units in the detection area is detected to be larger than a first preset value, starting an image detection function;

in this embodiment, when it is detected that the minimum number of detection units in a frame is greater than or equal to k (corresponding to a first preset value), the frame is regarded as a PDF hit, i.e., the frame detection function is started, at this time, the TCON outputs a corresponding signal, and then the driver IC (driving circuit) outputs different electrode polarities after receiving the signal, and as to which configuration is selected, it is determined according to which configuration can solve cross or greenish. Where k may be a freely set value greater than 0.

Further, in some possible embodiments, the step of activating the image detection function in step S20 includes:

step S201, outputting a high-low level timing sequence of a polarity inversion control signal to a driving circuit, so that the driving circuit changes the corresponding electrode polarity according to the high-low level timing sequence.

In this embodiment, referring to fig. 7 and 8, the timing interval of the DOT _c/POLC/POL signal includes Vact, vtotal, vblank, and Next frame, and since the DOT _ C/POL/POLC can be changed in any interval of Vblank, after the PDF function is activated, the TCON outputs the H/L timing of the DOT _ C/POLC/POL signal to the driving circuit, so that the driving circuit changes the polarities of the 6 columns of pixel electrodes Y1, Y2, Y3, Y4, Y5, and Y6 according to the levels of the three polarity inversion control signals, thereby avoiding an impending abnormality of the display screen.

Step S30, after the image detection function is started, if it is detected that the number of the minimum detection units in the detection area is smaller than a second preset value, the image detection function is exited, wherein the second preset value is smaller than the first preset value.

It should be noted that, after the PDF function is started, the detection on the minimum detection unit is still dynamically executed, and when the number of the minimum detection units is detected to be less than or equal to g (for the second preset value), the PDF function can be exited, because the polarity inversion adjustment on part of the pixel electrodes is already completed, the abnormal condition of the display screen is avoided. In this case, g can be a freely set value smaller than k.

The embodiment provides an image detection method, which overcomes the disadvantages of the detection method for starting the PDF function in the prior art. In the picture detection method, firstly, the minimum detection unit is detected line by line in a preset detection area; if the number of the minimum detection units in the detection area is larger than a first preset value, starting an image detection function; after the image detection function is started, if the number of the minimum detection units in the detection area is detected to be smaller than a second preset value, the image detection function is exited, wherein the second preset value is smaller than the first preset value. The method for detecting the PDF function of the display panel is eliminated, the method for fixing the detection area by using two coordinates and detecting in the detection area is changed into a line-by-line detection mode, the entry condition of the PDF function is perfected, more application conditions are covered, and the applicability of the PDF function of the display panel is enhanced.

In addition, an embodiment of the present application further provides a display device, referring to fig. 9, fig. 9 is a schematic structural diagram of the display device according to an embodiment of the present application, as shown in fig. 9, in this embodiment, the display device includes: a detection module 100 and an execution module 200.

The detection module 100 is configured to detect a minimum detection unit line by line in a preset detection area;

an execution module 200, where the execution module 200 is configured to start an image detection function if it is detected that the number of the minimum detection units in the detection area is greater than a first preset value;

the execution module 200 is further configured to, after the image detection function is started, if it is detected that the number of the minimum detection units in the detection area is smaller than a second preset value, quit the image detection function, where the second preset value is smaller than the first preset value.

In some possible embodiments, the display device further includes:

the configuration module is used for acquiring preset detection configuration and setting a preset detection area according to the detection configuration.

In some possible embodiments, the configuration module is further configured to set a display area between a starting detection line number and a terminating detection line number as a preset detection area if the detection configuration includes the starting detection line number and the terminating detection line number.

In some possible embodiments, the configuration module is further configured to set the entire display area as a preset detection area if the detection configuration does not include the starting detection line number and the ending detection line number.

In some possible embodiments, the configuration module is further configured to select at least one pixel point as the minimum detection unit.

In some possible embodiments, the configuration module is further configured to set a gray scale corresponding to a sub-pixel of the pixel point according to a preset index.

In some possible embodiments, the execution module 200 is further configured to output a high-low level timing of the polarity inversion control signal to the driving circuit, so that the driving circuit changes the polarity of the corresponding electrode according to the high-low level timing.

The display device provided by the embodiment and the image detection method provided by the embodiment belong to the same inventive concept, and technical details not described in detail in the embodiment can be referred to any of the embodiments, and the embodiment has the same beneficial effects as the image detection method.

In addition, an embodiment of the present application further provides a display panel, where the image detection method applied to the display panel may be executed by a display device, and the display device may be implemented in a software and/or hardware manner and integrated in the display panel.

Referring to fig. 10, fig. 10 is a schematic diagram of a hardware structure of a display panel according to an embodiment of the present application. As shown in fig. 10, the display panel may include: a processor 1001, such as a Central Processing Unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used to implement connection communication among these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a WIreless interface (e.g., a WIreless-FIdelity (WI-FI) interface). The Memory 1005 may be a Random Access Memory (RAM) or a Non-Volatile Memory (NVM), such as a disk Memory. The memory 1005 may alternatively be a memory device separate from the processor 1001 described above.

Those skilled in the art will appreciate that the configuration shown in fig. 10 is not limiting of display panels and may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.

As shown in fig. 10, the memory 1005, which is a storage medium, may include therein an operating system, a data storage module, a network communication module, a user interface module, and a computer program.

In the display panel shown in fig. 10, the network interface 1004 is mainly used for data communication with other devices; the user interface 1003 is mainly used for data interaction with a user; the processor 1001 and the memory 1005 in the present embodiment may be provided in a display panel that calls a computer program stored in the memory 1005 by the processor 1001 and performs the following operations:

detecting the minimum detection unit line by line in a preset detection area;

Further, the processor 1001 may call the computer program stored in the memory 1005, and also perform the following operations:

at least one pixel is selected as a minimum detection unit.

The display panel provided by the embodiment and the image detection method applied to the display panel provided by the embodiment belong to the same inventive concept, and technical details not described in detail in the embodiment can be referred to any of the embodiments, and the embodiment has the same beneficial effects as the execution of the image detection method.

In addition, an embodiment of the present application further provides a computer-readable storage medium, which is applied to a computer, and the computer-readable storage medium may be a non-volatile computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the method for detecting an image according to any of the above embodiments is implemented.

It will be understood by those of ordinary skill in the art that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, or suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.

While the preferred embodiments of the present invention have been described in detail, it will be understood, however, that the invention is not limited to those precise embodiments, and that various other modifications and substitutions may be affected therein by one skilled in the art without departing from the scope of the invention.

Claims

1. A picture detection method is characterized by comprising the following steps:

detecting the minimum detection unit line by line in a preset detection area;

if the number of the minimum detection units in the detection area is detected to be larger than a first preset value, starting an image detection function;

2. The picture detection method as claimed in claim 1, wherein before said step of detecting minimum detection units row by row in a predetermined detection region, the picture detection method further comprises:

3. The frame detection method as claimed in claim 2, wherein the step of setting a predetermined detection region according to the detection configuration comprises:

and if the detection configuration comprises a starting detection line number and an ending detection line number, setting a display area between the starting detection line number and the ending detection line number as a preset detection area.

4. The frame detection method as claimed in claim 2, wherein the step of setting a predetermined detection region according to the detection configuration further comprises:

5. The picture detection method according to claim 1, wherein before the step of detecting the minimum detection units line by line in a predetermined detection region, the picture detection method further comprises:

at least one pixel point is selected as a minimum detection unit.

6. The frame detection method as claimed in claim 5, wherein after said step of selecting at least one pixel as a minimum detection unit, the frame detection method further comprises:

7. The method according to any one of claims 1 to 6, wherein the step of activating the frame detection function comprises:

8. A display panel, comprising: memory, processor and computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the picture detection method according to any one of claims 1 to 7.

9. A display device, characterized in that the display device comprises:

10. A computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, and when being executed by a processor, the computer program implements the steps of the picture detection method according to any one of claims 1 to 7.