CN108182899A - Level of residual image evaluation method and device - Google Patents
Level of residual image evaluation method and device Download PDFInfo
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- CN108182899A CN108182899A CN201810006952.2A CN201810006952A CN108182899A CN 108182899 A CN108182899 A CN 108182899A CN 201810006952 A CN201810006952 A CN 201810006952A CN 108182899 A CN108182899 A CN 108182899A
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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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- 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
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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Abstract
The present invention provides a kind of level of residual image evaluation method and device, this method include：Acquire luminance information of each display area of display device when switching the first greyscale level；The first luminance difference value of the display device is determined according to each luminance information；According to the first luminance difference value and the luminance difference value and the correspondence of level of residual image that are pre-configured, level of residual image and the output of the display device are determined.The luminance information when present invention switches to grey by acquiring several display areas in display device, and judge according to each luminance information the level of residual image of display device, it realizes without can manually carry out level of residual image judgement automatically.
Description
Technical field
This application involves display technology fields, and in particular to a kind of level of residual image evaluation method and device.
Background technology
Liquid crystal display device (Liquid Crystal Display, LCD) has small, low in energy consumption, radiationless etc. excellent
Point obtains development at full speed in recent years, is applied in each display field.People are (highlighted to the performance of liquid crystal display device
Degree, for a long time low-power consumption, standby, high stable image quality etc.) increasingly pay close attention to, it is proposed that a series of assessment items, wherein image retention etc.
Grade evaluation is exactly one of them important project.Typically, image retention refers to that liquid crystal display is keeping a certain picture for a long time
When, liquid crystal by the driving of prolonged voltage due to being polarized.When signal voltage suddenly change, liquid crystal has little time to deflect, with
Liquid crystal display device is caused still to have the trace of a upper picture.
Normally, liquid crystal display device in the production process, due to material (such as liquid crystal or PI etc. cause ion to be assembled),
Technical process (such as friction (rubbing) technique, baking oven (oven) technique or cleaning etc.), voltage driving (lead to direct current
Bias voltage) etc. several factors, can all generate image retention.
The level of residual image judgment method of present is mainly to carry out the residual of judgement liquid crystal display device by human eye range estimation
As grade.The defects of this method, is, on the one hand, the subjectivity of manual testing is strong, it is difficult to ensure the accuracy of test result；Separately
On the one hand, manual testing can cause human eye tired, so as to directly affect the accuracy of test result.
Furthermore, it is possible to there is a situation where that the luminance difference in each region in display device is larger, such as most of regional luminance
Difference is smaller, and respective regions luminance difference is larger, and existing level of residual image judgment method often can not accurate judgement its image retention
Grade.
Invention content
In view of drawbacks described above of the prior art or deficiency, are intended to provide a kind of without can manually carry out image retention etc. automatically
Grade judge level of residual image evaluation method and device, and further realize the display device larger to different zones luminance difference into
The accurate level of residual image of row judges.
In a first aspect, the present invention provides a kind of level of residual image evaluation method, including：
Acquire luminance information of each display area of display device when switching the first greyscale level；
The first luminance difference value of the display device is determined according to each luminance information；
According to the first luminance difference value and the luminance difference value and the correspondence of level of residual image that are pre-configured, the display is determined
The level of residual image of device and output.
Second aspect, the present invention provide a kind of level of residual image evaluating apparatus, single including collecting unit, arithmetic element and evaluation
Member.
Collecting unit is configured to brightness letter of each display area of acquisition display device when switching the first greyscale level
Breath；
Arithmetic element is configured to determine the first luminance difference value of the display device according to each luminance information；
Evaluation unit is configured to according to the first luminance difference value and the luminance difference value and pair of level of residual image that are pre-configured
It should be related to, determine level of residual image and the output of the display device.
The level of residual image evaluation method and device that many embodiments of the present invention provide are several aobvious in display device by acquiring
Show luminance information when region switches to grey, and the level of residual image of display device is judged according to each luminance information, realize
Without can manually carry out level of residual image judgement automatically；
The level of residual image evaluation method and device that some embodiments of the invention provide further by comparing each display respectively
The first subelement of black and luminance difference of the second subelement being displayed in white when switching the first greyscale level are shown in region
It is different, and a luminance difference value for being determined as display device of luminance difference maximum is judged into level of residual image, it realizes to not
Accurate level of residual image judgement is carried out with the larger display device of region luminance difference；
The level of residual image evaluation method and device that some embodiments of the invention provide are further by acquiring each display area
Brightness timing information determine the image retention extinction time of display device, so as to be carried out more fully to the level of residual image of display device
Evaluation.
Description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, the application's is other
Feature, objects and advantages will become more apparent upon：
Fig. 1 is the flow chart of a kind of level of residual image evaluation method that one embodiment of the invention provides.
Fig. 2 is the correspondence schematic diagram of luminance difference value and level of residual image in one embodiment of the invention.
Flow charts of the Fig. 3 for step S50 in a kind of preferred embodiment of method shown in Fig. 1.
The a certain display device that Fig. 4 methods shown in Fig. 3 acquire before the handover after contrast schematic diagram.
Fig. 5 is a kind of flow chart of preferred embodiment of method shown in Fig. 1.
Fig. 6 is a kind of flow chart of preferred embodiment of method shown in Fig. 1.
Flow charts of the Fig. 7 for step S60 in a kind of preferred embodiment of method shown in Fig. 6.
Fig. 8 is the structure diagram of a kind of level of residual image evaluating apparatus that one embodiment of the invention provides.
Fig. 9 is a kind of structure diagram of preferred embodiment of Fig. 8 shown devices.
Figure 10 is a kind of structure diagram of preferred embodiment of Fig. 9 shown devices.
Specific embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related invention rather than the restriction to the invention.It also should be noted that in order to
Convenient for description, illustrated only in attached drawing with inventing relevant part.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Fig. 1 is the flow chart of a kind of level of residual image evaluation method that one embodiment of the invention provides.
As shown in Figure 1, in the present embodiment, the present invention provides a kind of level of residual image evaluation method, including：
S30：Acquire luminance information of each display area of display device when switching the first greyscale level；
S50：The first luminance difference value of the display device is determined according to each luminance information；
S70：According to the first luminance difference value and the luminance difference value and the correspondence of level of residual image that are pre-configured, determining should
The level of residual image of display device and output.
Specifically, in step s 30, display device is several display areas, such as draw according to the model split of pre-configuration
It is divided into the display area of 10,20 or 50 or even other arbitrary different numbers.Each display area be configurable to rectangle,
All kinds of shapes such as trapezoidal, L-shaped, T shapes or even irregular shape.
The display mode of each display area before the handover is determined according to the calculation being configured in step S50.
For example, in step s 50 by each display area paired comparisons luminance difference two-by-two, then each display area can be configured
Black is shown before the handover for half display area, the other half display area is displayed in white before the handover.It is divided with display device
For 20 display areas, be configurable to the first display area, third display area ..., the 19th display area cutting
Display black before changing, and the second display area, the 4th display area ..., the 20th display area is displayed in white before the handover.
In another example the subelement in each display area is subjected to paired comparisons luminance difference in step s 50, then each display
Even item subelement can be configured in region, and wherein will be configured to display black before switching by half subelement, another half son is single
Member is displayed in white before being configured to switching.
The display mode before different switchings can also be configured for display device according to other different calculations, herein
It will not enumerate.
Luminance information acquisition is carried out to aforementioned display device part by optical measuring device, each display area is collected and is switching
Luminance information during to the first greyscale level.In the present embodiment, the first greyscale level is grayscale 127, in more embodiments,
Can also according to different actual demands by the first greyscale level be configured to the different greyscale level such as grayscale 125, grayscale 130 or even
Any one in grayscale 1-254 is typically configured preferable in 127 or so effect of grayscale.
In step s 50, every luminance information that step S30 is acquired is calculated according to the calculation of pre-configuration.
Black is shown with half display area in 20 display areas before the handover, collects luminance information A1、A3、…、
A19, the other half display area is displayed in white before the handover, collects luminance information A2、A4、…、A20For, to each display area
Luminance information A1-A20It is matched two-by-two, △1=(A1-A2)/A1, △2=(A3-A4)/A3..., △10=(A19-A20)/
A19.Further according to the 10 luminance difference value △ calculated1-△10The first luminance difference value of display device is calculated, can be incited somebody to action
Wherein maximum one is determined as the first luminance difference value, and maximum several items (such as 3 or 5) can also be taken to be averaged,
Etc..
Four subelements are included with display area each in 20 display areas, display is black before the switching of two of which subelement
Color, for being displayed in white before the switching of another two subelement, to the luminance information B of each display area1-B20Subelement is carried out respectively
Pairing：Luminance information B1Brightness sub-information B including each subelement1-1(black-ash), B1-2(white-ash), B1-3(black-ash) and B1-4
(white-ash), △1-1=(B1-1-B1-2)/B1-1, △1-2=(B1-3-B1-4)/B1-3, and so on, △20-1=(B20-1-B20-2)/
B20-1, △20-2=(B20-3-B20-4)/B20-3.The first of display device is calculated further according to the 40 luminance difference values calculated
Luminance difference value, computational methods repeat no more.
In more different instances, the various forms of luminance informations calculating first that can be also acquired according to step S30 is bright
Difference value is spent, as long as the information of the region acquisition brightness generation to showing black and white before switching respectively is matched and calculated
Luminance difference value calculates the first luminance difference value, you can realize identical technique effect further according to each luminance difference value.
In step S70, by step S50 the first luminance difference values calculated and the luminance difference value being pre-configured and image retention
The correspondence of grade is compared, you can determines the level of residual image of the display device.
Fig. 2 is the correspondence schematic diagram of luminance difference value and level of residual image in one embodiment of the invention.As shown in Fig. 2,
In the present embodiment, which is：When first luminance difference value is 0%-4%, level of residual image L0；First
When luminance difference value is 4%-6%, level of residual image L1；When first luminance difference value is 6%-8%, level of residual image L2；The
When one luminance difference value is 8%-12%, level of residual image L3；When first luminance difference value is 12%-15%, level of residual image is
L4；When first luminance difference value is 15%-20%, level of residual image L5.In more embodiments, it can also be incited somebody to action according to actual demand
The correspondence of the luminance difference value and level of residual image is configured to the correspondence between different data range and different brackets, can
Realize identical technique effect.
Flow charts of the Fig. 3 for step S50 in a kind of preferred embodiment of method shown in Fig. 1.It is as shown in figure 3, excellent one
It selects in embodiment, above-mentioned display area includes the second son being displayed in white before preceding the first subelement for showing black of switching and switching
Unit, step S50 include：
S51：Determine in each display area the first subelement and the second subelement in switching the according to each luminance information respectively
Luminance difference value during one greyscale level；
S53：The the first luminance difference value for being determined as display device by one maximum in each luminance difference value.
Specifically, come illustrative step S51 and S53 by taking display device shown in Fig. 4 as an example below.Fig. 4 is the institute of method shown in Fig. 3
Acquisition a certain display device before the handover after contrast schematic diagram.As shown in figure 4, the display device includes 20 viewing areas
Domain 10, what each display area 10 was displayed in white before including preceding the first subelement 101 for showing black of a switching and switching
Second subelement 102.When switching the first greyscale level, which presents more apparent image retention, is adopted by step S30
Collect the luminance information C of each display area 101-C20, each luminance information includes the first brightness sub-information of the first subelement 101
Ci-101With the second brightness sub-information C of the second subelement 102i-102, i=1,2 ..., 20.
In step s 51, respectively according to each luminance information C1-C20Determine the first subelement and the second son in each display area
Luminance difference value of the unit when switching the first greyscale level：
△C1=(C1-101-C1-102)/C1-101；△C2=(C2-101-C2-102)/C2-101；……；
△C20=(C20-101-C20-102)/C20-101。
In step S53, by △C1-△C20One the first luminance difference value for being determined as display device of middle maximum.
Display device shown in above-mentioned Fig. 4 is merely illustrative, and in more embodiments, method shown in Fig. 3 can be applied to difference
Display device in, and can be that different display area is configured in display device, without being limited with display device shown in Fig. 4.
Fig. 5 is a kind of flow chart of preferred embodiment of method shown in Fig. 1.As shown in figure 5, in a preferred embodiment
In, the above method further includes：
S10：Each display area of display device of the acquisition with residual grade is when switching the first greyscale level
Master sample luminance information；And
S20：Second luminance difference value is determined, and generate according to the second luminance difference value according to each master sample luminance information
The correspondence of luminance difference value and level of residual image.
Specifically, it when the correspondence of luminance difference value and level of residual image is not configured in the device for performing this method, needs
Luminance information acquisition is carried out to the display device with residual grade, and it is aobvious with residual grade to calculate this
Show the second luminance difference value of device, so as to calibrate the correspondence of luminance difference value and level of residual image, for subsequent step
S70 is applied.
Fig. 6 is a kind of flow chart of preferred embodiment of method shown in Fig. 1.As shown in fig. 6, in a preferred embodiment
In, the above method further includes：
S40：Acquire brightness timing information of each display area during switching the first greyscale level and terminating to image retention recession；
And
S60：The image retention extinction time of display device is determined according to each brightness timing information.
Specifically, the acquisition method of S40 only needs acquisition to switch to first grayscale etc. compared to S30 difference lies in S30
The luminance information at this moment of grade, and S40 needs continuous collecting the first greyscale level of switching to image retention recession to terminate this entirely
The luminance information of period, for example, continuous collecting can be carried out with any conventional frequency such as 60HZ or 120HZ.Brightness timing information
The set of luminance information i.e. as unit of the time.
It, can basis since brightness timing information includes luminance information and the correspondence of time in step S60
Switch to the first greyscale level the luminance information corresponding time and, image retention disappear the luminance information corresponding time, determine
The image retention extinction time of display device.
Flow charts of the Fig. 7 for step S60 in a kind of preferred embodiment of method shown in Fig. 6.It is as shown in fig. 7, excellent one
It selects in embodiment, step S60 includes：
S61：The luminance difference value timing information of each display area is determined according to each brightness timing information respectively；
S63：The image retention extinction time of display device is determined according to each luminance difference value timing information.
Specifically, luminance difference value timing information is the set of the luminance difference value as unit of the time, wherein according to bright
The principle for spending information calculating luminance difference value is identical with step S50, and details are not described herein again.
Fig. 8 is the structure diagram of a kind of level of residual image evaluating apparatus that one embodiment of the invention provides.Dress shown in Fig. 8
Fig. 1, Fig. 5 or shown in fig. 6 method of execution can be corresponded to by putting.
As shown in figure 8, in the present embodiment, the present invention provides a kind of level of residual image evaluating apparatus 20, including collecting unit
23rd, arithmetic element 25 and evaluation unit 27.
Collecting unit 23 is configured to brightness of each display area of acquisition display device when switching the first greyscale level
Information；
Arithmetic element 25 is configured to determine the first luminance difference value of the display device according to each luminance information；
Evaluation unit 27 is configured to according to the first luminance difference value and the luminance difference value and level of residual image that are pre-configured
Correspondence determines level of residual image and the output of the display device.
Specifically, in the present embodiment, collecting unit 23 is high-precision photosensitive device, can specifically be matched according to actual demand
It is set to the distinct devices such as ca-310 color analysis instruments or CM-H505 color analyzers.Arithmetic element 25 and evaluation unit 27 are collection
The communication device integrated into the arithmetic facility for having communication device, arithmetic unit, storage device and output device, the arithmetic facility
It is communicated to connect with above-mentioned high-precision photosensitive device, specifically can the arithmetic facility be configured to by computer, list according to actual demand
The distinct devices such as piece machine, mobile phone.
In more embodiments, collecting unit 23, arithmetic element 25 and evaluation unit 27 can also be configured and be integrated collection
Into equipment, as long as being configured with the charge coupled device ccd or Complimentary Metal-Oxide for acquiring luminance information in the equipment
The optical devices such as semiconductor CMOS, and it is configured with arithmetic unit, storage device and output device simultaneously.
The level of residual image evaluation principle of above-mentioned level of residual image evaluating apparatus can refer to method shown in FIG. 1, no longer superfluous herein
It states.
In a preferred embodiment, collecting unit 23 is further configured to display of the acquisition with residual grade
Master sample luminance information of each display area of part when switching the first greyscale level；
Arithmetic element 25 is further configured to determine the second luminance difference value, and root according to each master sample luminance information
The correspondence of luminance difference value and level of residual image is generated according to the second luminance difference value.
The level of residual image evaluation principle for the level of residual image evaluating apparatus that the preferred embodiment provides can refer to side shown in fig. 5
Method, details are not described herein again.
In a preferred embodiment, collecting unit 23 is further configured to acquire each display area in the first grayscale of switching
Grade terminates the brightness timing information of period to image retention recession；
Arithmetic element 25 is further configured to determine the image retention extinction time of display device according to each brightness timing information.
The level of residual image evaluation principle for the level of residual image evaluating apparatus that the preferred embodiment provides can refer to side shown in fig. 6
Method, details are not described herein again.
Fig. 9 is a kind of structure diagram of preferred embodiment of Fig. 8 shown devices.Device shown in Fig. 9 can be corresponded to and be held
Row method shown in Fig. 3.
As shown in figure 9, in a preferred embodiment, display area shows the first subelement of black before including switching and cuts
The second subelement being displayed in white before changing, arithmetic element 25 include the first operation subelement 251 and the second operation subelement 252.
Wherein, the first operation subelement 251 is configured to be determined first in each display area according to each luminance information respectively
The luminance difference value of subelement and the second subelement when switching the first greyscale level；
Second operation subelement 252 is configured to the mean value of maximum one or several maximum in each luminance difference value is true
It is set to the first luminance difference value of display device.
The level of residual image evaluation principle for the level of residual image evaluating apparatus that the preferred embodiment provides can refer to side shown in Fig. 3
Method, details are not described herein again.
Figure 10 is a kind of structure diagram of preferred embodiment of Fig. 9 shown devices.Device shown in Fig. 10 can correspond to
Perform method shown in Fig. 7.
As shown in Figure 10, in a preferred embodiment, arithmetic element 25 further includes the fortune of third operation subelement 253 and the 4th
Operator unit 254.
Wherein, third operation subelement 253 is configured to determine each display area according to each brightness timing information respectively
Luminance difference value timing information；
4th operation subelement 254 is configured to determine that the image retention of display device disappears according to each luminance difference value timing information
Lose the time.
The level of residual image evaluation principle for the level of residual image evaluating apparatus that the preferred embodiment provides can refer to side shown in Fig. 7
Method, details are not described herein again.
Particularly, in accordance with an embodiment of the present disclosure, the level of residual image evaluation method of any of the above-described embodiment description can be by
It is embodied as computer software programs.For example, embodiment of the disclosure includes a kind of computer program product, including visibly wrapping
Containing computer program on a machine-readable medium, the computer program includes the journey for performing level of residual image evaluation method
Sequence code.
Present invention also provides a kind of computer readable storage medium, which can be above-mentioned reality
Apply computer readable storage medium included in the device of example；Can also be individualism, without the calculating in supplying equipment
Machine readable storage medium storing program for executing.Computer-readable recording medium storage there are one either more than one program program by one or
More than one processor is used for performing the level of residual image evaluation method for being described in the application.
Flow chart and block diagram in attached drawing, it is illustrated that according to the system of various embodiments of the invention, method and computer journey
Architectural framework in the cards, function and the operation of sequence product.In this regard, each box in flow chart or block diagram can generation
The part of one module of table, program segment or code, the part of the module, program segment or code include one or more use
In the executable instruction of logic function as defined in realization.It should also be noted that it in some implementations as replacements, is marked in box
The function of note can also be occurred with being different from the sequence marked in attached drawing.For example, two boxes succeedingly represented are actually
It can perform substantially in parallel, they can also be performed in the opposite order sometimes, this is depending on involved function.Also
It is noted that the combination of each box in block diagram and/or flow chart and the box in block diagram and/or flow chart, Ke Yitong
Cross perform as defined in functions or operations dedicated hardware based system come realize or can by specialized hardware with calculate
The combination of machine instruction is realized.
Being described in unit or module involved in the embodiment of the present application can be realized by way of software, can also
It is realized by way of hardware.Described unit or module can also be set in the processor, for example, each unit can
With the software program being provided in computer or intelligent movable equipment or the hardware device being separately configured.Wherein, this
The title of a little units or module does not form the restriction to the unit or module in itself under certain conditions.
The preferred embodiment and the explanation to institute's application technology principle that above description is only the application.People in the art
Member should be appreciated that invention scope involved in the application, however it is not limited to the technology that the specific combination of above-mentioned technical characteristic forms
Scheme, while should also cover in the case where not departing from the application design, appointed by above-mentioned technical characteristic or its equivalent feature
Other technical solutions that meaning is combined and formed.Such as features described above has similar functions with (but not limited to) disclosed herein
The technical characteristic technical solution being replaced mutually and formed.
Claims (10)
1. a kind of level of residual image evaluation method, which is characterized in that including：
Acquire luminance information of each display area of display device when switching the first greyscale level；
The first luminance difference value of the display device is determined according to each luminance information；
According to the first luminance difference value and the luminance difference value and the correspondence of level of residual image that are pre-configured, determine described aobvious
Show the level of residual image of device and output.
2. according to the method described in claim 1, it is characterized in that, the display area shows the first of black before including switching
The second subelement being displayed in white before subelement and switching；
It is described to determine that the first luminance difference value of the display device includes according to each luminance information：
Determine in each display area the first subelement and the second subelement in switching the according to each luminance information respectively
Luminance difference value during one greyscale level；
The the first luminance difference value for being determined as the display device by one maximum in each luminance difference value.
3. it according to the method described in claim 1, it is characterized in that, further includes：
Standard of each display area of display device of the acquisition with residual grade when switching the first greyscale level
Sample luminance information；
Second luminance difference value is determined, and generate according to the second luminance difference value according to each master sample luminance information
The correspondence of luminance difference value and level of residual image.
4. according to claim 1-3 any one of them methods, which is characterized in that further include：
Acquire brightness timing information of each display area during switching the first greyscale level and terminating to image retention recession；
The image retention extinction time of the display device is determined according to each brightness timing information.
5. according to the method described in claim 4, it is characterized in that, described determine described show according to each brightness timing information
Show that the image retention extinction time of device includes：
The luminance difference value timing information of each display area is determined according to each brightness timing information respectively；
The image retention extinction time of the display device is determined according to each luminance difference value timing information.
6. a kind of level of residual image evaluating apparatus, which is characterized in that including：
Collecting unit is configured to luminance information of each display area of acquisition display device when switching the first greyscale level；
Arithmetic element is configured to determine the first luminance difference value of the display device according to each luminance information；
Evaluation unit is configured to according to the first luminance difference value and the luminance difference value and pair of level of residual image that are pre-configured
It should be related to, determine level of residual image and the output of the display device.
7. device according to claim 6, which is characterized in that the display area shows the first of black before including switching
The second subelement being displayed in white before subelement and switching；
The arithmetic element includes：
First operation subelement is configured to determine that the first son is single in each display area according to each luminance information respectively
Member and luminance difference value of second subelement when switching the first greyscale level；
Second operation subelement is configured to determine the mean value of maximum one or several maximum in each luminance difference value
The first luminance difference value for the display device.
8. device according to claim 6, which is characterized in that the collecting unit, which is further configured to acquisition, has mark
Master sample luminance information of each display area of the display device of quasi- residual error grade when switching the first greyscale level；
The arithmetic element is further configured to determine the second luminance difference value according to each master sample luminance information, and
The correspondence of luminance difference value and level of residual image is generated according to the second luminance difference value.
9. according to claim 6-8 any one of them devices, which is characterized in that the collecting unit is further configured to adopt
Collect brightness timing information of each display area during switching the first greyscale level and terminating to image retention recession；
The arithmetic element is further configured to determine that the image retention of the display device disappears according to each brightness timing information
Lose the time.
10. device according to claim 9, which is characterized in that the arithmetic element includes：
Third operation subelement is configured to determine the brightness of each display area according to each brightness timing information respectively
Difference value timing information；
4th operation subelement is configured to determine the image retention of the display device according to each luminance difference value timing information
Extinction time.
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| CN201810006952.2A CN108182899A (en) | 2018-01-04 | 2018-01-04 | Level of residual image evaluation method and device |
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| CN201810006952.2A CN108182899A (en) | 2018-01-04 | 2018-01-04 | Level of residual image evaluation method and device |
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