CN109493775A - Show detection method, device and the terminal device of failure - Google Patents
Show detection method, device and the terminal device of failure Download PDFInfo
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- CN109493775A CN109493775A CN201811565119.8A CN201811565119A CN109493775A CN 109493775 A CN109493775 A CN 109493775A CN 201811565119 A CN201811565119 A CN 201811565119A CN 109493775 A CN109493775 A CN 109493775A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
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Abstract
The present invention is suitable for electronic technology field, provide detection method, device and the terminal device of display failure, it include: the brightness value of real-time acquisition target area, wherein the target area is the region for carrying out specific screen switching with predeterminated frequency reserved on display screen；If the brightness value of the target area is inconsistent with target value, determine that the display screen has display failure.The embodiment of the present invention can low cost, be efficiently timely detected the display failure of display screen.
Description
Technical field
The invention belongs to electronic technology field more particularly to a kind of detection method, device and terminal devices for showing failure.
Background technique
With the development of terminal technology, miscellaneous terminal device has become important component for people's lives, and
Common output device as existing terminal device --- display screen also seems particularly significant.Display screen is operated in routine work
In, it there may come a time when there is display failure, such as the stopping of blank screen, white screen, Hua Ping, picture etc., these display failures usually require
Manual inspection could be found, cause to show that failure cannot be timely detected and carry out respective handling.Such as many city bus,
There is vehicle-mounted lead of the LCD of application to multiply screen on bus, subway, when display failure occurs in display screen, driver can not have found in time,
The convenience of strong influence passenger's trip and satisfaction to smart city.
A kind of existing display failure automatic detection method is, in the actual displayed for acquiring display screen in real time by camera
Hold, pass back to host system and judged, such mode needs host to acquire always, analyzes actual displayed content, expends system
Resource, while additional high-resolution photographic device need to be configured, have the defects that at high cost, low efficiency.
Summary of the invention
In view of this, the embodiment of the invention provides detection method, device and the terminal device of display failure, it is existing to solve
Have in technology how low cost, the problem of being efficiently timely detected the display failure of display screen.
The first aspect of the embodiment of the present invention provides a kind of detection method for showing failure, comprising:
In real time acquisition target area brightness value, wherein the target area be display screen on reserve with predeterminated frequency into
The region of the specific screen switching of row；
If the brightness value of the target area is inconsistent with target value, determine that the display screen has display failure.
The second aspect of the embodiment of the present invention provides a kind of detection device for showing failure, comprising:
Acquisition unit, for acquiring the brightness value of target area in real time, wherein the target area is to reserve on display screen
The region that specific screen switching is carried out with predeterminated frequency；
First judging unit determines the display if the brightness value for the target area is inconsistent with target value
There is display failure in screen.
The third aspect of the embodiment of the present invention provides a kind of terminal device, including memory, processor and is stored in
In the memory and the computer program that can run on the processor, when the processor executes the computer program
The step of realizing the detection method such as the display failure.
The fourth aspect of the embodiment of the present invention provides a kind of computer readable storage medium, the computer-readable storage
Media storage has computer program, and the detection method such as the display failure is realized when the computer program is executed by processor
The step of.
Existing beneficial effect is the embodiment of the present invention compared with prior art: in the embodiment of the present invention, due to need to only lead to
The brightness value crossed acquisition in real time, compare target area can detect display screen with the presence or absence of display failure, without to whole in time
The image actual displayed content of a screen is made a concrete analysis of, therefore can more efficiently detect the display failure of display screen,
Simultaneously as without configuring additional high-resolution photographic device, therefore greatly reduce testing cost.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without creative efforts, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is the implementation process schematic diagram of the detection method of the first display failure provided in an embodiment of the present invention；
Fig. 2 is a kind of system structure diagram for showing fault detection provided in an embodiment of the present invention；
Fig. 3 is the implementation process schematic diagram of the detection method of second of display failure provided in an embodiment of the present invention；
Fig. 4 is the implementation process schematic diagram of the detection method of the third display failure provided in an embodiment of the present invention；
Fig. 5 is a kind of schematic diagram of detection device for showing failure provided in an embodiment of the present invention；
Fig. 6 is the schematic diagram of terminal device provided in an embodiment of the present invention.
Specific embodiment
In being described below, for illustration and not for limitation, the tool of such as particular system structure, technology etc is proposed
Body details, to understand thoroughly the embodiment of the present invention.However, it will be clear to one skilled in the art that there is no these specific
The present invention also may be implemented in the other embodiments of details.In other situations, it omits to well-known system, device, electricity
The detailed description of road and method, in case unnecessary details interferes description of the invention.
In order to illustrate technical solutions according to the invention, the following is a description of specific embodiments.
It should be appreciated that ought use in this specification and in the appended claims, term " includes " instruction is described special
Sign, entirety, step, operation, the presence of element and/or component, but be not precluded one or more of the other feature, entirety, step,
Operation, the presence or addition of element, component and/or its set.
It is also understood that mesh of the term used in this present specification merely for the sake of description specific embodiment
And be not intended to limit the application.As present specification and it is used in the attached claims, unless on
Other situations are hereafter clearly indicated, otherwise " one " of singular, "one" and "the" are intended to include plural form.
It will be further appreciated that the term "and/or" used in present specification and the appended claims is
Refer to any combination and all possible combinations of one or more of associated item listed, and including these combinations.
As used in this specification and in the appended claims, term " if " can be according to context quilt
Be construed to " when ... " or " once " or " in response to determination " or " in response to detecting ".Similarly, phrase " if it is determined that " or
" if detecting [described condition or event] " can be interpreted to mean according to context " once it is determined that " or " in response to true
It is fixed " or " once detecting [described condition or event] " or " in response to detecting [described condition or event] ".
In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and cannot in the description of the present application
It is interpreted as indication or suggestion relative importance.
Embodiment one:
Fig. 1 shows the flow diagram of the detection method of the first display failure provided by the embodiments of the present application, is described in detail
It is as follows:
In S101, in real time acquire target area brightness value, wherein the target area be display screen on reserve with
Predeterminated frequency carries out the region of specific screen switching.
Display screen can be liquid crystal display LCD perhaps cathode-ray display screen CRT perhaps LED display or other
The screen that can show information of type, is not construed as limiting herein.Target area is on display screen, area much smaller than display
Shield a pocket of full frame area.
On display screen, other than reserved target area, the essential information that other regions are shown needed for normally showing, example
Traffic roadmap, advertisement multimedia messages on such as vehicle-carrying display screen.Target area carries out specific picture with predeterminated frequency and cuts
It changes, specific picture at least two, that is, include at least the first picture with the first chroma-luminance information and there is the second color
Second picture of luminance information, the specific picture can keep the monochrome of same rgb value for each pixel in target area
Picture, such as red picture, yellow picture, black picture etc., or the rgb value disunity of each pixel in target area
Polychrome picture, herein without limitation.The brightness value of the chroma-luminance informational influence target area of specific picture, regardless of being monochromatic
Picture or polychrome picture, a specific picture have unique range of luminance values, which can be specific for one
Brightness value or one section of fluctuation range in brightness value.
The brightness value of acquisition target area in real time, can acquire target area in real time by optical flame detector and be in each specific picture
Corresponding brightness value when face.As shown in Fig. 2, for a kind of system structure diagram for showing fault detection, wherein display failure inspection
Surveying device is the executing subject that the detection method of failure is shown described in the embodiment of the present invention.
Preferably, the target area is located at the upper left corner of the display screen perhaps the lower left corner perhaps upper right corner or the right side
Corner regions on the display screens such as inferior horn so that the target area do not influence other regions normally display essential information when
Integrality and aesthetics.
In S102, if the brightness value of the target area is inconsistent with target value, it is aobvious to determine that the display screen exists
Show failure.
When display screen is in proper functioning condition, target area carries out specific screen switching, Qi Taqu with predeterminated frequency
The essential information that domain is shown needed for normally showing.At this point, the brightness value of target area brightness value corresponding with specific picture should be protected
It holds consistent, wherein the corresponding unique range of luminance values of a specific picture is target value.Optionally, target value can lead to
The brightness Data-Statistics for crossing each specific picture of repeated detection obtain, and it are carried out corresponding storage with specific picture, such as pass through
The mode of list stores the corresponding target value of each specific picture.When target area carries out specific screen switching with predeterminated frequency
When, target area correspondingly carries out corresponding brightness switching, and the brightness value of target area is kept in a certain range with target value
It synchronizes unanimously, described a certain range refers to, the brightness value and target value of target area allow to have a bit of time delay, time to miss
Poor is asynchronous, i.e., synchronous with target value holding consistent in the brightness value of insignificant error time range region of interest within, i.e.,
The brightness value for being considered as target area is consistent with target value.
It is when display screen has display failure, i.e., required aobvious on other regions when display screen is in disorder situation out of control
The essential information shown cannot normally show that similarly, target area cannot carry out cutting for specific picture as expected with predeterminated frequency
It changes.The brightness value of target area can not be consistent with target value at this time, i.e., the brightness value of target area and target value are in error
It is not able to maintain and is synchronized unanimously in time.So determining that display screen exists when the brightness value of target area and target value are inconsistent
Show that failure, such as black screen trouble, white screen failure, flower screen failure, picture stop failure etc..
Optionally, if the brightness value in the target area is inconsistent with target value, it is aobvious to determine that the display screen exists
After showing failure, further includes:
If there is display failure in the display screen, to designated terminal alert.
When determine display screen exist display failure when, can by wired or wireless communication modes by warning message with
Certain format is sent to designated terminal, and the designated terminal can be server or user terminal, when the designated terminal is
When server, warning message can be further forwarded to user terminal.User terminal can be broadcasted described in a manner of voice
Warning message, or the warning message is shown in such a way that screen is shown, to remind related personnel, so as to related personnel and
When processing display failure.
In the embodiment of the present invention, due to can need to only be examined in time by acquiring, comparing the brightness value of target area in real time
Display screen is surveyed with the presence or absence of display failure, is made a concrete analysis of without the image actual displayed content to entire screen, therefore energy
Enough display failures for more efficiently detecting display screen, simultaneously as without configuring additional high-resolution photographic device, therefore
Greatly reduce testing cost.
Embodiment two:
Fig. 3 shows the flow diagram of the detection method of second of display failure provided by the embodiments of the present application, is described in detail
It is as follows:
In S301, in real time acquire target area brightness value, wherein the target area be display screen on reserve with
The region of predeterminated frequency progress black and white screen switching.
Target area is a pocket on display screen, that area is much smaller than the full frame area of display screen.Display screen
On, other than reserved target area, the essential information that other regions are shown needed for normally showing, such as on vehicle-carrying display screen
The multimedia messages such as traffic roadmap, advertisement.Target area carries out black and white screen switching with predeterminated frequency, i.e., in black picture
And the switching of two pictures is carried out between white picture with predeterminated frequency.Black picture and white picture have corresponding brightness
Value, can acquire in real time the brightness value of target area by optical flame detector.
In S302, if the brightness value of the target area is inconsistent with target value, it is aobvious to determine that the display screen exists
Show failure, wherein the target value includes the first predetermined luminance value and the second predetermined luminance value.
Target value includes the first predetermined luminance value and the second predetermined luminance value, and the first predetermined luminance value presets for program
The corresponding brightness value of black picture, the second predetermined luminance value be the corresponding brightness value of the pre-set white picture of program, institute
Stating target value can be a value range, such as corresponding first predetermined luminance value of black picture is < 10, and white picture is corresponding
Second predetermined luminance value is 75~85.When display screen works normally, target area carries out black picture and white with predeterminated frequency
The switching of color picture, correspondingly, the brightness value of target area are preset bright with predeterminated frequency the first predetermined luminance value of progress and second
The switching of angle value.When the brightness value and target value that detect target area are inconsistent, i.e., target area is not according to default frequency
When the switching of rate the first predetermined luminance value of progress and the second predetermined luminance value, then illustrate that display screen is in runaway condition, determines aobvious
There is display failure in display screen, wherein display failure may include black screen trouble, white screen failure, flower shields failure, picture stops failure
Deng.
Optionally, if the brightness value of the target area is inconsistent with target value, determine that the display screen has display
Failure, comprising:
If the brightness value of the target area continuously less than or be equal to the first predetermined luminance value, determine the display screen
In the presence of display failure, the display failure is that black screen trouble or picture stop failure.
When collected target area brightness value continuously less than or be equal to the first predetermined luminance value, i.e., when preset
Between (such as in 30 seconds or 1 minute, be correspondingly arranged with specific reference to predeterminated frequency, which need to be greater than predeterminated frequency in section
It is reciprocal) brightness value of target area is always less than or is equal to corresponding first predetermined luminance value of black picture, such as first pre-
If brightness value be less than or equal to 10, and the brightness value of target area be always less than 10 or always be equal to 10, then determine this
When display screen there is display failure, and the display failure is that black screen trouble or picture stop failure.I.e. display screen is one entire
Picture is continuously in the runaway condition of blank screen, and target area cannot carry out screen switching according to predeterminated frequency, and other regions cannot
The essential information shown needed for display, all occupied by black picture；Alternatively, an entire picture of display screen is at a time quiet
Only, target area just falls in black picture at this time, and other regions are also still on some picture, cannot normally show dynamic
Essential information.
Optionally, if the brightness value of the target area is inconsistent with target value, determine that the display screen exists
Show failure, comprising:
If the brightness value of the target area is persistently more than or equal to the second predetermined luminance value, the display screen is determined
In the presence of display failure, the display failure is that white screen failure or picture stop failure.
When the brightness value of collected target area is persistently more than or equal to the second predetermined luminance value, i.e., when preset
Between (such as in 30 seconds or 1 minute, be correspondingly arranged with specific reference to predeterminated frequency, which need to be greater than predeterminated frequency in section
It is reciprocal) brightness value of target area is always more than or is equal to corresponding second predetermined luminance value of white picture, such as second pre-
If brightness value is 75~85, and the brightness value of target area is fallen in always in the interval range of the second predetermined luminance value, Huo Zheyi
It is straight to be greater than 85, then determine that display screen has display failure at this time, and the display failure is white screen failure, i.e. the one of display screen is entire
Picture is continuously in the runaway condition of white screen, and target area cannot carry out screen switching according to predeterminated frequency, and other regions cannot
The essential information shown needed for display, all occupied by white picture；Alternatively, an entire picture of display screen is at a time quiet
Only, target area just falls in white picture at this time, and other regions are also still on some picture, cannot normally show dynamic
Essential information.
Optionally, if the brightness value of the target area is inconsistent with target value, determine that the display screen exists
Show failure, comprising:
If the brightness value of the target area is persistently equal to a fixed value, the fixed value is preset bright greater than described first
Angle value and it is less than second predetermined luminance value, then determines that the display screen has display failure, the display failure is picture
Stop failure or flower screen failure.
When the brightness value of target area is persistently equal to a fixed value, i.e., within a preset time period (such as 30 seconds or 1
Minute in, be correspondingly arranged with specific reference to predeterminated frequency, the period need to be greater than predeterminated frequency inverse) target area brightness value
It is always maintained at a fixed value, which is greater than corresponding first predetermined luminance value of black picture, and is less than white picture pair
The second predetermined luminance value answered then determines that display screen has display failure at this time, and the display failure is flower screen failure.I.e. at this time
Display screen is in the runaway condition of disorder, target area cannot it is anticipated that carry out the black and white screen switching of specific frequency, and its
The essential information that its region is shown needed for can not normally showing, and all occupied by the still picture of other colors.
Optionally, if the brightness value of the target area is inconsistent with target value, determine that the display screen exists
Show failure, comprising:
If the brightness value of the target area persistently changes, and exists in the brightness value persistently changed and be greater than described first in advance
If brightness value and the brightness value for being less than second predetermined luminance value, then judge that the display screen has display failure, it is described aobvious
Show failure for flower screen failure.
When the brightness value of target area is in variable condition within a preset time period, but the brightness value changed not with
Target value is corresponding, but exists in the brightness value changed greater than corresponding first predetermined luminance value of black picture and draw less than white
The brightness value of corresponding second predetermined luminance value in face then determines that display screen has display failure at this time, and the display failure is flower
Shield failure.I.e. display screen is in the runaway condition of disorder at this time, and target area cannot be it is anticipated that carry out the black and white of specific frequency
Screen switching, and the essential information that other regions are shown needed for can not normally showing, and all shared by dynamic menu out of control
According to.
In the embodiment of the present invention, while low cost, being efficiently timely detected the display failure of display screen, due to
The detection process of display failure is specifically further simplified as specific picture using simple black and white screen, improves display failure
Detection efficiency.
Embodiment three:
Fig. 4 shows the flow diagram of the detection method of the third display failure provided by the embodiments of the present application, is described in detail
It is as follows:
In S401, in real time acquire target area brightness value, wherein the target area be display screen on reserve with
Predeterminated frequency carries out the region of specific screen switching.
S401 is identical as the S101 in embodiment one in the present embodiment, retouches referring specifically to the correlation of S101 in embodiment one
It states, does not repeat herein.
In S402, if the brightness value of the target area is inconsistent with target value, it is aobvious to determine that the display screen exists
Show failure.
S402 is identical as the S102 in embodiment two in the present embodiment, retouches referring specifically to the correlation of S102 in embodiment two
It states, does not repeat herein.
In S403, the electric current of display screen described in real-time monitoring.
It can be liquid crystal display LCD by the electric current of ammeter real-time detection display screen, such as display screen, it can
The power supply current value being powered with TCON plate and backlight of the real-time detection to LCD.
In S404, if the electric current exceeds predetermined current value range, determine that the display screen has display failure.
In normal work, current value is in a normal predetermined current value range display screen, can be by pre-
The display screen that first repeated detection record works normally shows that corresponding display screen electric current, statistics obtain when various essential information pictures
The predetermined current value range, and stored.When detecting electric current beyond predetermined current value range, illustrate current
Display screen operation is abnormal, and there are display failures.
Optionally, when the electric current of the display screen detected be less than predetermined current value range but not be 0 when, determine the display
There is display failure in screen, the display failure is broken screen failure.
Broken screen failure refers to the substrate breakage of display screen, and circuit is caused to can not work normally, at this time the power supply electricity of display screen
Rheology is small, is less than normal predetermined current value range.
Optionally, when the electric current of the display screen detected is 0, determine that the display screen has display failure, it is described aobvious
Show failure for power-off black screen trouble.
When display screen cannot work completely, the current value detected is 0, and display screen is in outage condition at this time, cannot
Show that any content, display failure are power-off black screen trouble.
Optionally, when the electric current of the display screen detected is greater than predetermined current value range, determine that the display screen exists
Show that failure, the display failure are white screen failure.
When an entire display screen is in white screen state, the supply current of display screen can be increased dramatically, and exceed predetermined current
Value range.Therefore, when the electric current of display screen is greater than predetermined current value range, illustrate that display screen has display failure, it is described aobvious
Show that failure is white screen failure.
In the embodiment of the present invention, come outside check for display failure except through detecting the brightness value of target area, also using real
When monitoring display screen electric current mode, further improve the display fault detection of display screen, improve the detection effect of display failure
Rate.
It should be understood that the size of the serial number of each step is not meant that the order of the execution order in above-described embodiment, each process
Execution sequence should be determined by its function and internal logic, the implementation process without coping with the embodiment of the present invention constitutes any limit
It is fixed.
Example IV:
Fig. 5 shows a kind of structural schematic diagram of detection device for showing failure provided by the embodiments of the present application, in order to just
In explanation, part relevant to the embodiment of the present application is illustrated only:
The detection device of the display failure includes: acquisition unit 51, the first judging unit 52.Wherein:
Acquisition unit 51, for acquiring the brightness value of target area in real time, wherein the target area is pre- on display screen
That stays carries out the region of specific screen switching with predeterminated frequency.
Display screen can be liquid crystal display LCD perhaps cathode-ray display screen CRT perhaps LED display or other
The screen that can show information of type, is not construed as limiting herein.Target area is on display screen, area much smaller than display
Shield a pocket of full frame area.
On display screen, other than reserved target area, the essential information that other regions are shown needed for normally showing, example
Traffic roadmap, advertisement multimedia messages on such as vehicle-carrying display screen.Target area carries out specific picture with predeterminated frequency and cuts
It changes, specific picture at least two, that is, include at least the first picture with the first chroma-luminance information and there is the second color
Second picture of luminance information, the specific picture can keep the monochrome of same rgb value for each pixel in target area
Picture, such as red picture, yellow picture, black picture etc., or the rgb value disunity of each pixel in target area
Polychrome picture, herein without limitation.The brightness value of the chroma-luminance informational influence target area of specific picture, regardless of being monochromatic
Picture or polychrome picture, a specific picture have unique range of luminance values, which can be specific for one
Brightness value or a bit of fluctuation range in brightness value.
The brightness value of acquisition target area in real time, can acquire target area in real time by optical flame detector and be in each specific picture
Corresponding brightness value when face.
First judging unit 52 determines described aobvious if the brightness value for the target area is inconsistent with target value
There is display failure in display screen.
When display screen is in proper functioning condition, target area carries out specific screen switching, Qi Taqu with predeterminated frequency
The essential information that domain is shown needed for normally showing.At this point, the brightness value of target area brightness value corresponding with specific picture should be protected
It holds consistent, wherein the corresponding unique range of luminance values of a specific picture is target value.Optionally, target value can lead to
The brightness Data-Statistics for crossing each specific picture of repeated detection obtain, and it are carried out corresponding storage with specific picture, such as pass through
The mode of list stores the corresponding target value of each specific picture.When target area carries out specific screen switching with predeterminated frequency
When, target area correspondingly carries out corresponding brightness switching, and the brightness value of target area is kept in a certain range with target value
It synchronizes unanimously, described a certain range refers to, the brightness value and target value of target area allow to have a bit of time delay, time to miss
Poor is asynchronous, i.e., synchronous with target value holding consistent in the brightness value of insignificant error time range region of interest within, i.e.,
The brightness value for being considered as target area is consistent with target value.
It is when display screen has display failure, i.e., required aobvious on other regions when display screen is in disorder situation out of control
The essential information shown cannot normally show that similarly, target area cannot carry out cutting for specific picture as expected with predeterminated frequency
It changes.The brightness value of target area can not be consistent with target value at this time, i.e., the brightness value of target area and target value are in error
It is not able to maintain and is synchronized unanimously in time.So determining that display screen exists when the brightness value of target area and target value are inconsistent
Show that failure, such as black screen trouble, white screen failure, flower screen failure, picture stop failure etc..
Optionally, specific screen switching described in the acquisition unit 51 is black and white screen switching, at this time described first
Target value described in judging unit 52 includes the first predetermined luminance value and the second predetermined luminance value.
Optionally, if the specific screen switching is black and white screen switching, first judging unit 52 includes:
First display fault determination module, if the brightness value for the target area is in advance continuously less than or equal to first
If brightness value, then determine that the display screen has display failure, the display failure is that black screen trouble or picture stop failure.
Optionally, if the specific screen switching is black and white screen switching, first judging unit 52 includes:
Second display fault determination module, if the brightness value for the target area is persistently more than or equal to second in advance
If brightness value, then determine that the display screen has display failure, the display failure is that white screen failure or picture stop failure.
Optionally, if the specific screen switching is black and white screen switching, first judging unit 52 includes:
Third shows fault determination module, if the brightness value for the target area is persistently equal to a fixed value, institute
Fixed value is stated greater than first predetermined luminance value and is less than second predetermined luminance value, then it is aobvious to determine that the display screen exists
Show that failure, the display failure are flower screen failure.
Optionally, if the specific screen switching is black and white screen switching, first judging unit 52 includes:
4th display fault determination module, if the brightness value for the target area persistently changes, and persistently change
There is greater than first predetermined luminance value and is less than the brightness value of second predetermined luminance value in brightness value, then described in judgement
There is display failure in display screen, the display failure is flower screen failure.
Optionally, the detection device of the display failure further includes current monitoring unit and the second judging unit:
The current monitoring unit, the electric current for display screen described in real-time monitoring.
Second judging unit determines that the display screen is deposited if exceeding predetermined current value range for the electric current
In display failure.
In the embodiment of the present invention, due to can need to only be examined in time by acquiring, comparing the brightness value of target area in real time
Display screen is surveyed with the presence or absence of display failure, is made a concrete analysis of without the image actual displayed content to entire screen, therefore energy
Enough display failures for more efficiently detecting display screen, simultaneously as without configuring additional high-resolution photographic device, therefore
Greatly reduce testing cost.
Embodiment five:
Fig. 6 is the schematic diagram for the terminal device that one embodiment of the invention provides.As shown in fig. 6, the terminal of the embodiment is set
Standby 6 include: processor 60, memory 61 and are stored in the meter that can be run in the memory 61 and on the processor 60
Calculation machine program 62, such as the detection method program of display failure.The realization when processor 60 executes the computer program 62
Step in the detection method embodiment of above-mentioned each display failure, such as step S101 to S102 shown in FIG. 1.Alternatively, institute
The function that each module/unit in above-mentioned each Installation practice is realized when processor 60 executes the computer program 62 is stated, such as
The function of module 51 to 52 shown in Fig. 5.
Illustratively, the computer program 62 can be divided into one or more module/units, it is one or
Multiple module/units are stored in the memory 61, and are executed by the processor 60, to complete the present invention.Described one
A or multiple module/units can be the series of computation machine program instruction section that can complete specific function, which is used for
Implementation procedure of the computer program 62 in the terminal device 6 is described.For example, the computer program 62 can be divided
It is cut into acquisition unit and the first judging unit, each unit concrete function is as follows:
Acquisition unit, for acquiring the brightness value of target area in real time, wherein the target area is to reserve on display screen
The region that specific screen switching is carried out with predeterminated frequency.
First judging unit determines the display if the brightness value for the target area is inconsistent with target value
There is display failure in screen.
The terminal device 6 can be the calculating such as desktop PC, notebook, palm PC and cloud server and set
It is standby.The terminal device may include, but be not limited only to, processor 60, memory 61.It will be understood by those skilled in the art that Fig. 6
The only example of terminal device 6 does not constitute the restriction to terminal device 6, may include than illustrating more or fewer portions
Part perhaps combines certain components or different components, such as the terminal device can also include input-output equipment, net
Network access device, bus etc..
Alleged processor 60 can be central processing unit (Central Processing Unit, CPU), can also be
Other general processors, digital signal processor (Digital Signal Processor, DSP), specific integrated circuit
(Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-
Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic,
Discrete hardware components etc..General processor can be microprocessor or the processor is also possible to any conventional processor
Deng.
The memory 61 can be the internal storage unit of the terminal device 6, such as the hard disk or interior of terminal device 6
It deposits.The memory 61 is also possible to the External memory equipment of the terminal device 6, such as be equipped on the terminal device 6
Plug-in type hard disk, intelligent memory card (Smart Media Card, SMC), secure digital (Secure Digital, SD) card dodge
Deposit card (Flash Card) etc..Further, the memory 61 can also both include the storage inside list of the terminal device 6
Member also includes External memory equipment.The memory 61 is for storing needed for the computer program and the terminal device
Other programs and data.The memory 61 can be also used for temporarily storing the data that has exported or will export.
It is apparent to those skilled in the art that for convenience of description and succinctly, only with above-mentioned each function
Can unit, module division progress for example, in practical application, can according to need and by above-mentioned function distribution by different
Functional unit, module are completed, i.e., the internal structure of described device is divided into different functional unit or module, more than completing
The all or part of function of description.Each functional unit in embodiment, module can integrate in one processing unit, can also
To be that each unit physically exists alone, can also be integrated in one unit with two or more units, it is above-mentioned integrated
Unit both can take the form of hardware realization, can also realize in the form of software functional units.In addition, each function list
Member, the specific name of module are also only for convenience of distinguishing each other, the protection scope being not intended to limit this application.Above system
The specific work process of middle unit, module, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, is not described in detail or remembers in some embodiment
The part of load may refer to the associated description of other embodiments.
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
The scope of the present invention.
In embodiment provided by the present invention, it should be understood that disclosed device/terminal device and method, it can be with
It realizes by another way.For example, device described above/terminal device embodiment is only schematical, for example, institute
The division of module or unit is stated, only a kind of logical function partition, there may be another division manner in actual implementation, such as
Multiple units or components can be combined or can be integrated into another system, or some features can be ignored or not executed.Separately
A bit, shown or discussed mutual coupling or direct-coupling or communication connection can be through some interfaces, device
Or the INDIRECT COUPLING or communication connection of unit, it can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated module/unit be realized in the form of SFU software functional unit and as independent product sale or
In use, can store in a computer readable storage medium.Based on this understanding, the present invention realizes above-mentioned implementation
All or part of the process in example method, can also instruct relevant hardware to complete, the meter by computer program
Calculation machine program can be stored in a computer readable storage medium, the computer program when being executed by processor, it can be achieved that on
The step of stating each embodiment of the method.Wherein, the computer program includes computer program code, the computer program generation
Code can be source code form, object identification code form, executable file or certain intermediate forms etc..The computer-readable medium
It may include: any entity or device, recording medium, USB flash disk, mobile hard disk, magnetic that can carry the computer program code
Dish, CD, computer storage, read-only memory (ROM, Read-Only Memory), random access memory (RAM,
Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium etc..It should be noted that described
The content that computer-readable medium includes can carry out increasing appropriate according to the requirement made laws in jurisdiction with patent practice
Subtract, such as does not include electric carrier signal and electricity according to legislation and patent practice, computer-readable medium in certain jurisdictions
Believe signal.
Embodiment described above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although referring to aforementioned reality
Applying example, invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each
Technical solution documented by embodiment is modified or equivalent replacement of some of the technical features；And these are modified
Or replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution should all
It is included within protection scope of the present invention.
Claims (10)
1. a kind of detection method for showing failure characterized by comprising
The brightness value of acquisition target area in real time, wherein the target area is special with predeterminated frequency progress for what is reserved on display screen
Determine the region of screen switching；
If the brightness value of the target area is inconsistent with target value, determine that the display screen has display failure.
2. the detection method of display failure as described in claim 1, which is characterized in that the specific screen switching is black and white picture
Face switching, at this point, the target value includes the first predetermined luminance value and the second predetermined luminance value.
3. the detection method of display failure as claimed in claim 2, which is characterized in that if the brightness of the target area
Value is inconsistent with target value, then determines that the display screen has display failure, comprising:
If the brightness value of the target area continuously less than or be equal to the first predetermined luminance value, determine that the display screen exists
Show that failure, the display failure are that black screen trouble or picture stop failure.
4. the detection method of display failure as claimed in claim 2, which is characterized in that if the brightness of the target area
Value is inconsistent with target value, then determines that the display screen has display failure, comprising:
If the brightness value of the target area is persistently more than or equal to the second predetermined luminance value, determine that the display screen exists
Show that failure, the display failure are that white screen failure or picture stop failure.
5. the detection method of display failure as claimed in claim 2, which is characterized in that if the brightness of the target area
Value is inconsistent with target value, then determines that the display screen has display failure, comprising:
If the brightness value of the target area is persistently equal to a fixed value, the fixed value is greater than first predetermined luminance value
And be less than second predetermined luminance value, then determine that the display screen has display failure, the display failure is flower screen failure.
6. the detection method of display failure as claimed in claim 2, which is characterized in that if the brightness of the target area
Value is inconsistent with target value, then determines that the display screen has display failure, comprising:
If the brightness value of the target area persistently changes, and bright in the presence of presetting greater than described first in the brightness value persistently changed
Angle value and the brightness value for being less than second predetermined luminance value then judge that the display screen has display failure, the display event
Barrier is flower screen failure.
7. the detection method of the display failure as described in claim 1 to 6 any one, which is characterized in that the method is also wrapped
It includes:
The electric current of display screen described in real-time monitoring；
If the electric current exceeds predetermined current value range, determine that the display screen has display failure.
8. a kind of detection device for showing failure characterized by comprising
Acquisition unit, for acquiring the brightness value of target area in real time, wherein the target area be display screen on reserve with
Predeterminated frequency carries out the region of specific screen switching；
First judging unit determines that the display screen is deposited if the brightness value for the target area is inconsistent with target value
In display failure.
9. a kind of terminal device, including memory, processor and storage are in the memory and can be on the processor
The computer program of operation, which is characterized in that the processor realizes such as claim 1 to 7 when executing the computer program
The step of any one the method.
10. a kind of computer readable storage medium, the computer-readable recording medium storage has computer program, and feature exists
In when the computer program is executed by processor the step of any one of such as claim 1 to 7 of realization the method.
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|---|---|---|---|
| CN201811565119.8A CN109493775B (en) | 2018-12-20 | 2018-12-20 | Display fault detection method and device and terminal equipment |
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|---|---|---|---|
| CN201811565119.8A CN109493775B (en) | 2018-12-20 | 2018-12-20 | Display fault detection method and device and terminal equipment |
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| CN109493775B CN109493775B (en) | 2022-06-14 |
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| CN109946859A (en) * | 2019-04-09 | 2019-06-28 | 深圳市华星光电半导体显示技术有限公司 | The detection method and device of backlight module |
| CN110875008A (en) * | 2019-11-21 | 2020-03-10 | 武汉天马微电子有限公司 | Method for determining sub-pixel brightness, method and device for driving display panel |
| CN111722074A (en) * | 2020-06-03 | 2020-09-29 | 四川蓝景光电技术有限责任公司 | LED identification label fault positioning method, device and system |
| CN113686550A (en) * | 2021-08-23 | 2021-11-23 | 苏州市大创信息运用有限公司 | Fault detection method and device based on light-emitting coupling and difference value judgment and electronic display equipment system |
| CN114638831A (en) * | 2022-05-18 | 2022-06-17 | 合肥宏晶半导体科技有限公司 | Image analysis method and device |
| CN114879388A (en) * | 2021-02-05 | 2022-08-09 | 合肥统旭智慧科技有限公司 | Intelligent detection method for monitoring display picture of liquid crystal display |
| CN116594813A (en) * | 2023-05-26 | 2023-08-15 | 江苏泽景汽车电子股份有限公司 | System restarting method and device, head-up display device and storage medium |
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