CN107221276A - A kind of detection method and device of display device image retention - Google Patents
A kind of detection method and device of display device image retention Download PDFInfo
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Abstract
The embodiments of the invention provide a kind of detection method and device of display device image retention, it is related to display technology field, solves the problem of accuracy rate and low efficiency of display image retention degree are judged according to human eye in the prior art.The program includes：After display device uses the period of black and white gridiron pattern picture lighting one, black and white gridiron pattern picture is switched into grey menu；At the M moment after grey menu is switched to, each display device is obtained corresponding to the brightness value in black and white gridiron pattern picture at each gridiron pattern position, wherein, M >=1；The brightness value at each gridiron pattern position got according to each moment, determines the image retention degree of the black and white gridiron pattern picture at each moment；The image retention degree of black and white gridiron pattern picture and the corresponding relation at N number of moment are exported, wherein, M >=N >=1.The present invention is applied to display device.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of detection method and device of display device image retention.
Background technology
Display, such as OLED (English full name：Organic Light-Emitting Diode, Chinese lexical or textual analysis：Organic hair
Optical diode) display, because it has self-luminous, flexible, low-power consumption, high image quality, bright in luster, high-resolution
The features such as, it is increasingly being applied among high-performance display field.
In order to improve the performance and quality of display, in process of production, it is necessary to level of residual image to display, differentiate
The performance indications such as rate, brightness, contrast and colour gamut are detected and judged.Wherein, image retention refers to that display is aobvious for a long time
Show after same picture, then switch to another picture, display can leave the phenomenon of the ghost of a picture on new picture.Tool
Body, for example, in OLED display, due to thin film transistor (TFT) (TFT) hesitation in OLED display, and/or, OLED
After display is used for a long time, electroluminescent material aging so that the luminous efficiency reduction of electroluminescent material, so as to cause OLED
The image retention of display.
In the prior art, display is generally allowed to use the lighting of black and white gridiron pattern picture for a period of time, afterwards, by black and white chess
Disk lattice picture switch to a grey menu (i.e. the picture of each pixel all same, the usual picture be in black-and-white image it
Between some tone darkness grade picture), disappeared by recording after image switching to eye-observation to black and white gridiron pattern picture
The time of mistake, so as to realize the judgement to display image retention degree.
But, above-mentioned human eye decision method is subjective random very strong, and accuracy is relatively low, so as to cause technical staff can not
For the defect as caused by image retention display is carried out comprehensively, targetedly improve to greatly reduce product quality and
Yields.Further, since the time that black and white gridiron pattern picture disappears is longer so that human eye needs Real Time Observation black and white gridiron pattern picture
Whether disappear, so as to cause above-mentioned human eye decision method to there is the problem of efficiency is low.
The content of the invention
The embodiments of the invention provide a kind of detection method and device of display device image retention, to solve root in the prior art
The problem of judging the accuracy rate and low efficiency of display image retention degree according to human eye.
To reach above-mentioned purpose, the embodiment of the present invention is adopted the following technical scheme that：
First aspect there is provided a kind of detection method of display device image retention, including：
After display device uses the period of black and white gridiron pattern picture lighting one, the black and white gridiron pattern picture is switched to
Grey menu；
At the M moment after the grey menu is switched to, obtain the display device and correspond to the black and white gridiron pattern
Brightness value in picture at each gridiron pattern position, wherein, M >=1；
The brightness value at each gridiron pattern position got according to the moment, determines black and white described in the moment
The image retention degree of gridiron pattern picture；
The image retention degree of the black and white gridiron pattern picture and the corresponding relation at N number of moment are exported, wherein, M >=N >=1.
Second aspect there is provided a kind of detection means of display device image retention, including：
Control module, for after display device uses the period of black and white gridiron pattern picture lighting one, controlling the display
The black and white gridiron pattern picture is switched to grey menu by device；
Acquisition module, for controlling the display device to switch to the black and white gridiron pattern picture in the control module
At the M moment after the grey menu, obtain the display device and correspond to each gridiron pattern in the black and white gridiron pattern picture
Brightness value at position, wherein, M >=1；
Memory module, corresponds to described black for the display device that acquisition module described in storing the moment is got
Brightness value in white plate lattice picture at each gridiron pattern position；
Processing module, for according to each chessboard case in the black and white gridiron pattern picture stored in the memory module
The brightness value at place is put, the image retention degree of black and white gridiron pattern picture described in the moment is determined；
Output module, image retention degree and institute for exporting the black and white gridiron pattern picture that the processing module is determined
The corresponding relation at N number of moment of control module setting is stated, wherein, M >=N >=1.
The scheme that the application is provided, by by after black and white gridiron pattern picture lighting for a period of time, switching to after grey menu
M moment, obtain display device and correspond to brightness value in black and white gridiron pattern picture at each gridiron pattern position, and according to obtaining
The brightness value got determines the image retention degree of each moment black and white gridiron pattern picture；Final output N number of moment and black and white gridiron pattern
The corresponding relation of the image retention degree of picture., being capable of the objective quantifiable image retention degree to display device compared to prior art
Judged, and need not observe whether black and white gridiron pattern picture disappears for a long time.Therefore, the scheme energy that the application is provided
Enough solve it is of the prior art according to human eye judge display image retention level accuracy rate and low efficiency the problem of.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be in embodiment or description of the prior art
The required accompanying drawing used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present invention
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is a kind of schematic diagram of the detection method of display device image retention provided in an embodiment of the present invention；
Fig. 2 is that a kind of fibre-optical probe of optical detection apparatus provided in an embodiment of the present invention is aligned with black and white gridiron pattern picture
Schematic diagram；
A kind of structural representation for optical detection apparatus CA310 that Fig. 3 provides for prior art；
Fig. 4 is a kind of structural representation of the detection means of display device image retention provided in an embodiment of the present invention；
Fig. 5 is a kind of detecting system structural representation of display device image retention provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the present patent application embodiment, the technical scheme in the present patent application embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present patent application, rather than whole
Embodiment.Based on the embodiment in the present patent application, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the present patent application protection.
It should be noted that in the embodiment of the present application, word " exemplary " or " such as " makees example, example for expression
Card or explanation.Any embodiment or design for being described as " exemplary " or " such as " in the embodiment of the present application should not
It is interpreted than other embodiments or design more preferably or more advantage.Specifically, " exemplary " or " example are used
Such as " word is intended to that related notion is presented in a concrete fashion.
It should be noted that in the embodiment of the present application, unless otherwise indicated, the implication of " multiple " refer to two or two with
On.For example, multiple packets refer to two or more packets.
It should be noted that in the embodiment of the present application, " (English：Of) ", " corresponding (English：Corresponding,
Relevant it is) " and " corresponding (English：Corresponding) " it can use with sometimes, it is noted that do not emphasizing it
During difference, its is to be expressed be meant that it is consistent.
Based on the above, the embodiment of the present invention provides a kind of detection method of display device image retention, the execution of this method
Main body can be the detection means of display device image retention, as shown in figure 1, this method comprises the following steps：
101st, after display device uses the period of black and white gridiron pattern picture lighting one, black and white gridiron pattern picture is switched to
Grey menu.
Exemplary, above-mentioned display device is the equipment with display function, specifically, can be display screen (display
Panel) or product comprising display screen.For example, display device can be display, TV, digital camera, mobile phone, flat
Any product or part with display function such as plate computer.Wherein, the display device can be liquid crystal display device, also may be used
To be LED (such as OLED, AMOLED) display device etc..
Above-mentioned black and white gridiron pattern picture can be adjusted according to the ratio of display screen, example can be 8*8 chessboard
Lattice.Typically, each black and white gridiron pattern is rectangle, for 8*8 gridiron pattern, can by the number of lines of pixels of display screen and
Pixel columns is equally divided into 8 parts, to obtain corresponding gridiron pattern.
Above-mentioned grey menu refers to all pixels point all same in picture, the usual picture be in black-and-white image it
Between some tone darkness grade picture, i.e. brightness is in most bright picture (white picture) and brightness in most dark picture (black picture
Face) between a picture.If representing pixel component with rgb color pattern, grey menu can be that all pixels are homogeneous
Deng, and RGB component in each pixel also equal picture.In display device carries out image retention detection, people in the art
Each pixel R=G=B=127 (GTG) picture in the grey menu that member typically uses.
, certainly can be with addition, the time of above-mentioned use black and white gridiron pattern picture lighting is generally or so hour
It is longer.
Exemplary, the detection means of display device image retention can send picture handover request to display device and (for example disappear
Breath may include the data or a switching command of grey menu, and the switching command can be from the memory module of display device
It is middle to read the data of grey menu, and control display device to show the grey menu) so that display device draws black and white gridiron pattern
Face switches to grey menu.Further, display device shows that black and white gridiron pattern picture can also be controlled by detection means, has
Body, the detection means of display device image retention can send initial picture to display device and show message (for example：The message can be wrapped
The data or a display command of initial picture are included, the display command can be read from the memory module of display device
The data of initial picture) so that display device shows black and white gridiron pattern picture.
102nd, the M moment after grey menu is switched to, obtain display device and correspond in black and white gridiron pattern picture often
Brightness value at individual gridiron pattern position, wherein, M >=1.
Optionally, multiple fibre-optical probes collection display dress that the scheme that the application is provided passes through improved optical detection apparatus
Put corresponding to the brightness value in black and white gridiron pattern picture at each gridiron pattern position.Correspond to accurately gather display device
Brightness value in black and white gridiron pattern picture at each gridiron pattern position, preferably during black and white chess disk lattice picture lighting (
I.e. before picture switches to grey menu) by each chess in the fibre-optical probe of optical detection apparatus and black and white gridiron pattern picture
Disk lattice are aligned, to ensure that after picture switches required brightness value can be collected in time.As shown in Fig. 2 each of which chessboard
Lattice correspond to a fibre-optical probe.
Based on this, step 102 is specifically included：At the M moment after grey menu is switched to, pass through optical detection apparatus
Fibre-optical probe obtains display device corresponding to the brightness value in black and white gridiron pattern picture at each gridiron pattern position.
Exemplary, unmodified optical detection apparatus is generally CA310.Examined according to existing optics as shown in Figure 3
Measurement equipment CA310 structural representation understands that existing CA310 optic probe bore is larger, and a probe can cover multiple
Black and white gridiron pattern.Therefore, it can not accurately be collected in display device correspondence and black and white gridiron pattern picture using existing CA310
Brightness value at each gridiron pattern position.Based on this, the scheme that the application is provided is carried out to existing optical detection apparatus CA310
Improve, its existing bigbore optic probe is substituted by the use of fibre-optical probe as optic probe.
Example, step 102 can be the detection means of display device image retention after display device switches to grey menu,
Brightness value is obtained in real time.Specifically, detection means can be set after control display device switches to grey menu to optical detection
It is standby that acquisition instructions are periodically sent with time interval set in advance, so that optical detection apparatus can receive the acquisition instructions
When gather each black and white chessboard case and put the brightness value at place, and be uploaded to detection means；Detection means can also be in control display
When device switches to grey menu, a real-time acquisition instructions are sent to optical detection apparatus, so that optical detection apparatus is real-time
The each black and white chessboard case of collection put the brightness value at place, and detection means is uploaded to, until detection means is set to optical detection
Preparation send a stopping acquisition instructions.
And example, step 102 can also be according to one or more collection moment be preset, such as：If desired cutting
Image retention detection is carried out at the time of changing 10ms after grey menu into, then detection means is after control display device switches to grey menu
At the time of 10ms, acquisition instructions are sent to optical detection apparatus；Or, if desired 5ms, 10ms after grey menu is switched to
And image retention detection is carried out at the time of 13ms, then detection means control display device switch to after grey menu 5ms, 10ms with
And at the time of 13ms, acquisition instructions are sent to optical detection apparatus.
103rd, the brightness value at each gridiron pattern position collected according to M moment, determines the black and white chessboard at M moment
The image retention degree of lattice picture.
Exemplary, the image retention degree of above-mentioned black and white gridiron pattern picture represents black and white gridiron pattern picture switching to GTG
After picture, residual degree of the black and white gridiron pattern picture in grey menu.Example, the image retention degree of black and white gridiron pattern picture is used
Level of residual image is represented, be can also be that other represent the parameter of image retention degree, for example, can is each black and white obtained at a moment
The average value of all brightness values at gridiron pattern position.
Optionally, the method for the black and white gridiron pattern picture progress image retention deciding degree got for each moment is as follows：
1031st, the brightness value at each gridiron pattern position got according to a moment, is calculated in each row gridiron pattern, position
The difference of brightness value at every two neighboring gridiron pattern position of same a line, and/or, calculate in each row gridiron pattern, positioned at same
The difference of brightness value at every two neighboring gridiron pattern position of one row.
Exemplary, by taking m*m black and white gridiron pattern picture as an example, each gridiron pattern in black and white gridiron pattern picture is used
AI, jRepresent.If in each row for calculating black and white gridiron pattern picture, the brightness value at the two neighboring gridiron pattern position of same a line
Obtain value of deltaijWhen, δ can be passed throughij=AI, j+1-AI, jCalculating is obtained, wherein i be [1, m] between natural number, j be [1, m-1] it
Between natural number.It is corresponding, if in each row of calculating black and white gridiron pattern picture, positioned at the two neighboring gridiron pattern position of same row
The brightness value at place obtains difference ηijWhen, η can be passed throughij=AI+1, j-AI, jCalculating is obtained, and wherein i is the natural number between [1, m-1], j
For the natural number between [1, m].For the embodiment of the present invention, all δ can be calculatedij, to obtain level of residual image；Can be with
Calculate all ηij, to obtain level of residual image；All δ can also be calculatedijWith all ηij, obtain level of residual image jointly.
1032nd, an obtained moment corresponding all differences are calculated according to step 1031, the black and white chess at the moment is obtained
The level of residual image of disk lattice picture.
Exemplary, the level of residual image of black and white gridiron pattern picture and the difference of the brightness value at two neighboring gridiron pattern position
In the presence of the corresponding relation of such as table 1 below：
| Level of residual image | The difference L of brightness value |
| LV1 | 0≤L ＜ L1 |
| LV2 | L1≤L ＜ L2 |
| LV3 | L2≤L ＜ L3 |
| LV4 | L3≤L ＜ L4 |
| LV5 | L4≤L |
Table 1
Wherein, above-mentioned L represents that the brightness value at adjacent two gridiron patterns position obtains difference；Above-mentioned L1~LV5 represents each
The boundary value of individual level of residual image.It should be noted that the content in above-mentioned table is only a kind of example, do not limit here.Its
In, level of residual image is higher, represents that the afterimage phenomena of display device is more serious.
Optionally, based on the above, step 1032 can be accomplished in the following manner：
Mode one, the corresponding level of residual image of all maximum value in difference of acquisition, are used as the moment black and white gridiron pattern picture
Level of residual image.
Exemplary, all differences in aforesaid way one can be the δ in step 1031ij, wherein i is between [1, m]
Natural number, j be [1, m-1] between natural number；Can also be the η in step 1031ij, wherein i is oneself between [1, m-1]
So count, j is the natural number between [1, m]；Or the δ in 1031ijWith ηij。
Mode two, the highest level of residual image obtained in the corresponding level of residual image of all differences, are used as the moment black and white chessboard
The level of residual image of lattice picture, wherein, highest level of residual image represents the image retention degree highest of black and white gridiron pattern picture.
It should be noted that the maximum in all differences in aforesaid way one determines that level of residual image is only one
Preferred scheme is planted, also level of residual image can be determined according to average value, intermediate value of all differences etc..It is any according to adjacent two gridiron pattern
The difference of brightness value at position, determines the level of residual image of black and white gridiron pattern picture all within protection scope of the present invention.It is right
Answer, in above-mentioned mode two, the highest level of residual image in the corresponding level of residual image of all differences determines black and white gridiron pattern
The level of residual image of picture is also only a kind of preferred scheme, also can will belong to same residual in the corresponding level of residual image of all differences
As the most level of residual image of grade quantity, the level of residual image of black and white gridiron pattern picture is used as.
Mode three, the corresponding level of residual image of all differences of acquisition, are used as the level of residual image of the moment black and white gridiron pattern picture.
It should be noted that by taking m*m black and white gridiron pattern as an example, the black and white gridiron pattern that aforesaid way three finally gives
The level of residual image of picture is (m-1) * (m-1) matrix, represents the level of residual image on black and white gridiron pattern picture diverse location.Root
The grade of the image retention obtained according to which, targetedly can be corrected to the image retention of display device.
104th, the image retention degree and the corresponding relation at N number of moment of output black and white gridiron pattern picture, wherein, M >=N >=1.
It is exemplary, can be exported according to the image retention criterion of setting, for example, user need according to it is a certain specific when
Carve (for example：Switch to this moment of the 5ms after grey menu) image retention degree evaluate display device, then this can be exported
The image retention degree of particular moment and the moment；In another example, it is a certain specific residual that user, which is needed according to the image retention degree of display device,
Display device is evaluated as the time of degree, then can export the specific image retention degree time corresponding with the image retention degree.
Example, if the image retention degree of black and white gridiron pattern picture is represented with level of residual image, determined based on above-mentioned steps 103
M (assuming that M=8) the individual moment black and white gridiron pattern picture level of residual image it is as shown in table 2 below：
| Moment | Level of residual image |
| T0 | LV5 |
| T1 | LV5 |
| T2 | LV4 |
| T3 | LV3 |
| T4 | LV3 |
| T5 | LV2 |
| T6 | LV2 |
| T7 | LV1 |
Table 2
Exemplary, if user needs to know each level of residual image corresponding time, based in above-mentioned steps 104
Hold, then can export result as shown in table 3 below：
| Moment | Level of residual image |
| T0 | LV5 |
| T2 | LV4 |
| T3 | LV3 |
| T5 | LV2 |
| T7 | LV1 |
Table 3
It should be noted that there may be the situation of multiple moment same level of residual image of correspondence, when there are multiple moment pair
When answering same grade, at the time of generally by the same grade correspondence determined first, as the same grade it is corresponding when
Carve.Certainly, at the time of by the same grade correspondence determined first, at the time of as same grade correspondence, only one
Plant example.
Optionally, the image retention degree of usual judging/displaying device be by judge black and white gridiron pattern picture disappear time come
Realize, therefore, the preferred implementation step of step 104 is：The image retention degree of output black and white gridiron pattern picture is defined as pre- first
If minimum image retention degree at the time of, with the corresponding relation of the minimum image retention degree.
The scheme that the application is provided, by by after black and white gridiron pattern picture lighting for a period of time, switching to after grey menu
M moment, obtain display device and correspond to brightness value in black and white gridiron pattern picture at each gridiron pattern position, and according to obtaining
The brightness value got determines the image retention degree of each moment black and white gridiron pattern picture；Final output N number of moment and black and white gridiron pattern
The corresponding relation of the image retention degree of picture., being capable of the objective quantifiable image retention degree to display device compared to prior art
Judged, and need not observe whether black and white gridiron pattern picture disappears for a long time.Therefore, the scheme energy that the application is provided
Enough solve it is of the prior art according to human eye judge display image retention level accuracy rate and low efficiency the problem of.
The embodiment of the present invention provides a kind of detection means 20 of display device image retention, as shown in figure 4, the device includes：Control
Molding block 21, acquisition module 22, memory module 23, processing module 24, wherein：
Control module 21, for after display device uses the period of black and white gridiron pattern picture lighting one, control display to be filled
Put and black and white gridiron pattern picture is switched into grey menu.
Acquisition module 22, for controlling display device that black and white gridiron pattern picture is switched into grey menu in control module 21
At the M moment afterwards, display device is obtained corresponding to the brightness value in black and white gridiron pattern picture at each gridiron pattern position, wherein, M
≥1。
Memory module 23, corresponds to black and white gridiron pattern for storing the display device that M moment acquisition module 22 is got
Brightness value in picture at each gridiron pattern position.
Processing module 24, for according in the black and white gridiron pattern picture stored in memory module 23 at each gridiron pattern position
Brightness value, determine the image retention degree of a moment black and white gridiron pattern picture.
Output module 25, image retention degree and the control mould of the black and white gridiron pattern picture determined for output processing module 24
The corresponding relation at N number of moment that block 21 is set, wherein, M >=N >=1.
Optionally, control module 21 is additionally operable to：The fibre-optical probe of optical detection apparatus and black and white gridiron pattern picture are aligned,
Wherein, one fibre-optical probe of each gridiron pattern correspondence.
Optionally, acquisition module 22, are additionally operable to correspond to by the fibre-optical probe acquisition display device of optical detection apparatus
Brightness value in black and white gridiron pattern picture at each gridiron pattern position.
Optionally, processing module 24 specifically for：
The brightness value at each gridiron pattern position got according to a moment, is calculated in each row gridiron pattern, positioned at same
The difference of brightness value at every two neighboring gridiron pattern position of a line, and/or, calculate in each row gridiron pattern, positioned at same row
Every two neighboring gridiron pattern position at brightness value difference.
All differences obtained according to calculating, obtain the level of residual image of a moment black and white gridiron pattern picture.
Optionally, processing module 24 specifically for：
The corresponding level of residual image of all maximum value in difference is obtained, image retention of a moment black and white gridiron pattern picture etc. is used as
Level.
Or, the highest level of residual image in the corresponding level of residual image of all differences is obtained, a moment black and white chess is used as
The level of residual image of disk lattice picture, wherein, highest level of residual image represents the image retention degree highest of black and white gridiron pattern picture.
Or, the corresponding level of residual image of all differences is obtained, image retention of a moment black and white gridiron pattern picture etc. is used as
Level.
Optionally, output module 24 is additionally operable to：
At the time of the image retention degree of output black and white gridiron pattern picture is defined as default minimum image retention degree first, with this most
The corresponding relation of low image retention degree.
In a kind of example, as shown in figure 5, control module 21 controls one section of the lighting black and white gridiron pattern picture of display device 30
Time, and during black and white gridiron pattern picture lighting control optical detection apparatus 40 fibre-optical probe number and black and white chess
Gridiron pattern quantity is identical in disk lattice picture, and in the fibre-optical probe and black and white gridiron pattern picture of control optical detection apparatus 40
Each gridiron pattern contraposition.After the control black and white gridiron pattern picture lighting for a period of time of control module 21, control display device 30 will
Black and white gridiron pattern picture switches to grey menu.And after grey menu is switched to, M collection moment is set.Acquisition module 22
At the M collection moment set according to control module 21, obtain display device 30 and correspond to each chessboard in black and white gridiron pattern picture
Case puts the brightness value at place.And the brightness value at each gridiron pattern position got is stored in memory module 23.Processing
The brightness value at each gridiron pattern position that module 24 is stored according to being stored in memory module 23, determines M moment black and white chess
The image retention degree of disk lattice picture.The image retention degree for the black and white gridiron pattern picture that output module 25 is determined according to processing module 24 with
The corresponding relation at N number of moment that control module 21 is set.
The scheme that the application is provided, by by after black and white gridiron pattern picture lighting for a period of time, switching to after grey menu
M moment, obtain display device and correspond to brightness value in black and white gridiron pattern picture at each gridiron pattern position, and according to obtaining
The brightness value got determines the image retention degree of each moment black and white gridiron pattern picture；Final output N number of moment and black and white gridiron pattern
The corresponding relation of the image retention degree of picture., being capable of the objective quantifiable image retention degree to display device compared to prior art
Judged, and need not observe whether black and white gridiron pattern picture disappears for a long time.Therefore, the scheme energy that the application is provided
Enough solve it is of the prior art according to human eye judge display image retention level accuracy rate and low efficiency the problem of.
It should be noted that memory module above can include volatile memory (volatile memory), example
Such as random access memory (random-access memory, RAM)；Nonvolatile memory (non-can also be included
Volatile memory), such as read-only storage (read-only memory, ROM), flash memory (flash
Memory), hard disk (hard disk drive, HDD) or solid state hard disc (solid-state drive, SSD)；It can also include
The combination of the memory of mentioned kind.
Processing module presented above can be integrated in a module with control module, and the integrated module can be
The general designation of one processor or multiple treatment elements.For example, processor can be central processing unit (central
Processing unit, CPU；Can also be other general processors, digital signal processor (digital signal
Processing, DSP), it is application specific integrated circuit (application specific integrated circuit, ASIC), existing
It is field programmable gate array (field-programmable gate array, FPGA) or other PLDs, discrete
Door or transistor logic, discrete hardware components etc..General processor can be that microprocessor or the processor also may be used
To be any conventional processor etc.；Can also be application specific processor, the application specific processor can include baseband processing chip, penetrate
At least one in frequency process chip etc..
Acquisition module presented above can be an acquiring unit (such as bluetooth), or an acquisition circuit.
It is apparent to those skilled in the art that, for convenience and simplicity of description, the module of foregoing description
Specific work process, may be referred to the corresponding process in preceding method embodiment, will not be repeated here.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (10)
1. a kind of detection method of display device image retention, it is characterised in that including：
After display device uses the period of black and white gridiron pattern picture lighting one, the black and white gridiron pattern picture is switched into GTG
Picture；
At the M moment after the grey menu is switched to, obtain the display device and correspond to the black and white gridiron pattern picture
In brightness value at each gridiron pattern position, wherein, M >=1；
The brightness value at each gridiron pattern position got according to the moment, determines black and white chessboard described in the moment
The image retention degree of lattice picture；
The image retention degree of the black and white gridiron pattern picture and the corresponding relation at N number of moment are exported, wherein, M >=N >=1.
2. according to the method described in claim 1, it is characterised in that use black and white gridiron pattern picture lighting in the display device
During, methods described also includes：
The fibre-optical probe of optical detection apparatus and the black and white gridiron pattern picture are aligned, wherein, each gridiron pattern correspondence
One fibre-optical probe；
It is described to obtain the display device corresponding to the brightness value in the black and white gridiron pattern picture at each gridiron pattern position, bag
Include：
The display device is obtained by the fibre-optical probe of the optical detection apparatus to correspond in the black and white gridiron pattern picture
Brightness value at each gridiron pattern position.
3. according to the method described in claim 1, it is characterised in that each chessboard got according to the moment
Case puts the brightness value at place, determines the image retention degree of black and white gridiron pattern picture described in the moment, including：
The brightness value at each gridiron pattern position got according to the moment, is calculated in each row gridiron pattern, positioned at same
The difference of brightness value at every two neighboring gridiron pattern position of a line, and/or, calculate in each row gridiron pattern, positioned at same
The difference of brightness value at every two neighboring gridiron pattern position of one row；
All differences obtained according to calculating, obtain the level of residual image of black and white gridiron pattern picture described in the moment.
4. method according to claim 3, it is characterised in that all differences obtained according to calculating, is obtained
The level of residual image of black and white gridiron pattern picture described in the moment, including：
The corresponding level of residual image of all maximum value in difference is obtained, the residual of black and white gridiron pattern picture described in the moment is used as
As grade；
Or, the highest level of residual image in the corresponding level of residual image of all differences is obtained, black and white described in the moment is used as
The level of residual image of gridiron pattern picture, wherein, the highest level of residual image represents the image retention degree of the black and white gridiron pattern picture most
It is high；
Or, the corresponding level of residual image of all differences is obtained, the image retention of black and white gridiron pattern picture described in the moment is used as
Grade.
5. according to the method described in claim 1, it is characterised in that the image retention degree of the output black and white gridiron pattern picture
With the corresponding relation at N number of moment, including：
At the time of the image retention degree for exporting the black and white gridiron pattern picture is defined as default minimum image retention degree first, with it is described
The corresponding relation of minimum image retention degree.
6. a kind of detection means of display device image retention, it is characterised in that including：
Control module, for after display device uses the period of black and white gridiron pattern picture lighting one, controlling the display device
The black and white gridiron pattern picture is switched into grey menu；
Acquisition module, it is described for controlling the display device to switch to the black and white gridiron pattern picture in the control module
At the M moment after grey menu, obtain the display device and correspond to each gridiron pattern position in the black and white gridiron pattern picture
The brightness value at place, wherein, M >=1；
Memory module, corresponds to the black and white chess for the display device that acquisition module described in storing the moment is got
Brightness value in disk lattice picture at each gridiron pattern position；
Processing module, for according in the black and white gridiron pattern picture stored in the memory module at each gridiron pattern position
Brightness value, determine the image retention degree of black and white gridiron pattern picture described in the moment；
Output module, for the image retention degree for exporting the black and white gridiron pattern picture that the processing module is determined and the control
The corresponding relation at N number of moment that molding block is set, wherein, M >=N >=1.
7. device according to claim 6, it is characterised in that the control module is additionally operable to：
The fibre-optical probe of optical detection apparatus and the black and white gridiron pattern picture are aligned, wherein, each gridiron pattern correspondence
One fibre-optical probe；
The acquisition module, the fibre-optical probe acquisition display device for being additionally operable to excessively described optical detection apparatus all corresponds to
Brightness value in the black and white gridiron pattern picture at each gridiron pattern position.
8. device according to claim 6, it is characterised in that the processing module specifically for：
The brightness value at each gridiron pattern position got according to the moment, is calculated in each row gridiron pattern, positioned at same
The difference of brightness value at every two neighboring gridiron pattern position of a line, and/or, calculate in each row gridiron pattern, positioned at same
The difference of brightness value at every two neighboring gridiron pattern position of one row；
All differences obtained according to calculating, obtain the level of residual image of black and white gridiron pattern picture described in the moment.
9. device according to claim 8, it is characterised in that the processing module specifically for：
The corresponding level of residual image of all maximum value in difference is obtained, the residual of black and white gridiron pattern picture described in the moment is used as
As grade；
Or, the highest level of residual image in the corresponding level of residual image of all differences is obtained, black and white described in the moment is used as
The level of residual image of gridiron pattern picture, wherein, the highest level of residual image represents the image retention degree of the black and white gridiron pattern picture most
It is high；
Or, the corresponding level of residual image of all differences is obtained, the image retention of black and white gridiron pattern picture described in the moment is used as
Grade.
10. device according to claim 6, it is characterised in that the output module is additionally operable to：
At the time of the image retention degree for exporting the black and white gridiron pattern picture is defined as default minimum image retention degree first, with it is described
The corresponding relation of minimum image retention degree.
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