CN105049836B - The quick inspection method in LED television backlight subarea - Google Patents
The quick inspection method in LED television backlight subarea Download PDFInfo
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- CN105049836B CN105049836B CN201510397400.5A CN201510397400A CN105049836B CN 105049836 B CN105049836 B CN 105049836B CN 201510397400 A CN201510397400 A CN 201510397400A CN 105049836 B CN105049836 B CN 105049836B
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- backlight subarea
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Abstract
The invention discloses a kind of quick inspection method in LED television backlight subarea, described inspection method comprises the following steps：Step one, confirmation LED television backlight subarea scheme；The picture that step 2, making detection use；Step 3, picture described in every width are opened using the back of the body lamp that the first color region represents the one of subregion in LED television backlight subarea, are closed using the back of the body lamp that second color region represents remaining subregion；Step 4, on TV in order play step 3 in make picture；Step 5, using oscillograph test the corresponding electric current of each subregion；Testing standard is：The corresponding lamp bar only having the first color region has electric current, and electric current is the initial maximum setting of television set, and second color region current value should be 0.The present invention can quickly confirm whether LED television backlight subarea is normal.The method checks efficiency high, low cost.
Description
Technical field
The present invention relates to TV technology is and in particular to a kind of quick inspection method in LED television backlight subarea.
Background technology
With the intelligent development of television set, in the status more and more higher of family, the demand of screen size is increasingly for TV
Greatly, the definition to picture for the user, degree of stability etc. requires also more and more higher, improves image quality, and reducing TV power consumption just becomes TV
One required problem, intelligent local light regulating technology is exactly to solve the problems, such as above-mentioned the best way, that is, TV be divided into multiple
The backlight of each subregion of subregion can individually be controlled, and the backlight of each subregion carries out bright dark tune according to the brightness of image
Section, thus reaching raising contrast, reduces the purpose of TV power consumption.The subregion of backlight must be with the connection of lamp bar, the calculation of software
Method corresponds, and image abnormity otherwise, i.e. this bright place of image, and backlight is probably dark.
Content of the invention
Instant invention overcomes the deficiencies in the prior art, provide a kind of television backlight subregion using pictorial simulation backlight quick
Inspection method.
For solving above-mentioned technical problem, the present invention employs the following technical solutions：
A kind of quick inspection method in LED television backlight subarea, described inspection method comprises the following steps：
Step one, confirmation LED television backlight subarea scheme；
The picture that step 2, making detection use；
Step 3, picture described in every width represent the one of subregion in LED television backlight subarea using the first color region
Back of the body lamp open, using second color region represent remaining subregion back of the body lamp close；
Step 4, on TV in order play step 3 in make picture；
Step 5, using oscillograph test the corresponding electric current of each subregion；Testing standard is：Only has the first color region
Corresponding lamp bar has electric current, and electric current is the initial maximum setting of television set, and second color region current value should be 0.
Further technical scheme is also to include determining whether step, if the inspection of all subregions all meets testing standard,
Represent that the subregion of backlight is accurate.
Further technical scheme is that backlight subarea scheme includes：Number of partitions and scanning sequency.
Further technical scheme is to make the quantity of picture and the described backlight subarea number that detection uses in step 2
Amount is equal.
Further technical scheme is that in step 3, the first color region is white portion, described second chromatic zones
Domain is black region.
Further technical scheme is that white portion gray scale is：Red 255 ranks, green 255 ranks, blue 255 ranks；Black
Area grayscale is：Red 0 rank, green 0 rank, blue 0 rank.
Further technical scheme is that the first color region area is less than the corresponding LED of the first color region described
The area of television backlight subregion.
Further technical scheme be LED television backlight subarea be 2*8 subregion.
Compared with prior art, the invention has the beneficial effects as follows：The present invention can quickly confirm that LED television backlight subarea is
No normal.Method checks efficiency high, low cost.
Brief description
Fig. 1 is LED television backlight subarea scheme schematic diagram in one embodiment of the invention.
Fig. 2 is the picture schematic diagram that in Fig. 1 of the present invention, the corresponding detection of sequence number 1 uses.
Fig. 3 is the picture schematic diagram that in Fig. 1 of the present invention, the corresponding detection of sequence number 2 uses.
Fig. 4 is the picture schematic diagram that in Fig. 1 of the present invention, the corresponding detection of sequence number 3 uses.
Fig. 5 is the picture schematic diagram that in Fig. 1 of the present invention, the corresponding detection of sequence number 4 uses.
Fig. 6 is the picture schematic diagram that in Fig. 1 of the present invention, the corresponding detection of sequence number 5 uses.
Fig. 7 is the picture schematic diagram that in Fig. 1 of the present invention, the corresponding detection of sequence number 6 uses.
Fig. 8 is the picture schematic diagram that in Fig. 1 of the present invention, the corresponding detection of sequence number 7 uses.
Fig. 9 is the picture schematic diagram that in Fig. 1 of the present invention, the corresponding detection of sequence number 8 uses.
Figure 10 is the picture schematic diagram that in Fig. 1 of the present invention, the corresponding detection of sequence number 9 uses.
Figure 11 is the picture schematic diagram that in Fig. 1 of the present invention, the corresponding detection of sequence number 10 uses.
Figure 12 is the picture schematic diagram that in Fig. 1 of the present invention, the corresponding detection of sequence number 11 uses.
Figure 13 is the picture schematic diagram that in Fig. 1 of the present invention, the corresponding detection of sequence number 12 uses.
Figure 14 is the picture schematic diagram that in Fig. 1 of the present invention, the corresponding detection of sequence number 13 uses.
Figure 15 is the picture schematic diagram that in Fig. 1 of the present invention, the corresponding detection of sequence number 14 uses.
Figure 16 is the picture schematic diagram that in Fig. 1 of the present invention, the corresponding detection of sequence number 15 uses.
Figure 17 is the picture schematic diagram that in Fig. 1 of the present invention, the corresponding detection of sequence number 16 uses.
Specific embodiment
All features disclosed in this specification, or disclosed all methods or during step, except mutually exclusive
Feature and/or step beyond, all can combine by any way.
Any feature disclosed in this specification (including any accessory claim, summary and accompanying drawing), except non-specifically is chatted
State, all can be replaced by other alternative features equivalent or that there is similar purpose.I.e., unless specifically stated otherwise, each feature
It is a series of equivalent or one of similar characteristics example.
Below in conjunction with the accompanying drawings and embodiment is described in detail to the specific embodiment of the present invention.
As shown in Fig. 1 to Figure 17, according to one embodiment of present invention, the present embodiment discloses a kind of LED television backlight and divides
The quick inspection method in area, specifically, the present embodiment inspection method comprises the following steps：
1st, LED television backlight subarea scheme, such as Fig. 1 are confirmed, in the present embodiment, LED television backlight subarea is 2*8 subregion, point
Area's quantity is 16, and backlight scanning sequency such as Fig. 1 is from 1 to 16 sequential scan.
2nd, make the picture that detection uses, as shown in Fig. 2 the picture number that detection uses is equal with number of partitions, be
16；
3rd, every width picture is divided into two parts, and wherein, a part is white, and remainder is black, and white portion represents right
Answer the backlight in region bright, remaining black portions represents that the back of the body lamp of corresponding region closes；Preferably, white rectangles area in every width picture
Domain area is slightly less than screen area 1/16th, and that is, length is slightly less than 1/2nd of screen width, and width is slightly less than screen
Highly 1/8th.Preferably, white portion gray scale is：Red 255 ranks, green 255 ranks, blue 255 ranks, black portions gray scale
For：Red 0 rank, green 0 rank, blue 0 rank.Specifically, screen is divided into 16 parts, each rectangle correspondence position should be screen
In curtain 1/16th region.
4th, play the picture that above-mentioned steps make on TV in order；
5th, oscillograph is used to test the corresponding electric current of each subregion, the only corresponding lamp bar in white rectangles region has electric current, and
Electric current is the maximum (i.e. the brightest state) of television set initial designs, and other zone current values should be 0 (i.e. black state)；
6th, it is examined in other 15 subregions according to the method for step 5；
If the inspection of 7 all subregions all meets testing standard, represent that the subregion of backlight is accurate.
The present embodiment can quickly confirm whether LED television backlight subarea is normal.The method checks efficiency high, low cost.
" embodiment ", " another embodiment ", " embodiment " spoken of in this manual, etc., refer to tie
Specific features, structure or the feature of closing the description of this embodiment include at least one embodiment in the description of the application generality
In.Multiple local appearance statement of the same race in the description is not necessarily to refer to same embodiment.Furthermore, it is understood that combine appointing
When one embodiment describes specific features, structure or feature, to be advocated is to realize this with reference to other embodiment
Plant feature, structure or feature also to fall within the scope of the present invention.
Although reference be made herein to invention has been described for the multiple explanatory embodiments invented, however, it is to be understood that this
Skilled person can be designed that a lot of other modifications and embodiment, and these modifications and embodiment will fall in the application
Within disclosed spirit and spirit.More specifically, in the range of disclosure claim, can be to theme group
Close the building block of layout and/or layout carries out multiple modifications and improvement.Except the modification that building block and/or layout are carried out
Outer with improving, to those skilled in the art, other purposes also will be apparent from.
Claims (8)
1. a kind of quick inspection method in LED television backlight subarea is it is characterised in that described inspection method comprises the following steps：
Step one, confirmation LED television backlight subarea scheme；
The picture that step 2, making detection use；
Step 3, picture described in every width represent the back of the body of the one of subregion in LED television backlight subarea using the first color region
Lamp is opened, and is closed using the back of the body lamp that second color region represents remaining subregion；
Step 4, on TV in order play step 3 in make picture；
Step 5, using oscillograph test the corresponding electric current of each subregion；Testing standard is：Only has the correspondence of the first color region
Lamp bar has electric current, and electric current is the initial maximum setting of television set, and second color region current value should be 0.
2. the quick inspection method in LED television backlight subarea according to claim 1 is it is characterised in that also include determining whether to walk
Suddenly, if the inspection of all subregions all meets testing standard, represent that the subregion of backlight is accurate.
3. the quick inspection method in LED television backlight subarea according to claim 1 is it is characterised in that described backlight subarea
Scheme includes：Number of partitions and scanning sequency.
4. the quick inspection method in LED television backlight subarea according to claim 3 is it is characterised in that in described step 2
The quantity of picture making detection use is equal with described backlight subarea quantity.
5. the quick inspection method in LED television backlight subarea according to claim 1 is it is characterised in that in described step 3
The first color region is white portion, and described second color region is black region.
6. the quick inspection method in LED television backlight subarea according to claim 5 is it is characterised in that described white portion
Gray scale is：Red 255 ranks, green 255 ranks, blue 255 ranks；Black region gray scale is：Red 0 rank, green 0 rank, blue 0 rank.
7. the quick inspection method in LED television backlight subarea according to claim 1 or 5 or 6 is it is characterised in that described
A kind of color region area is less than the area of the corresponding LED television backlight subarea of the first color region described.
8. the quick inspection method in LED television backlight subarea according to claim 1 or 3 is it is characterised in that described LED is electric
Regard backlight subarea as 2*8 subregion.
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| CN201510397400.5A CN105049836B (en) | 2015-07-08 | 2015-07-08 | The quick inspection method in LED television backlight subarea |
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| CN201510397400.5A CN105049836B (en) | 2015-07-08 | 2015-07-08 | The quick inspection method in LED television backlight subarea |
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| CN105049836B true CN105049836B (en) | 2017-03-01 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114093288A (en) * | 2021-11-17 | 2022-02-25 | 四川长虹电器股份有限公司 | Method for realizing dot matrix light-operated demonstration on smart television |
| CN114252801A (en) * | 2021-12-10 | 2022-03-29 | 四川长虹电器股份有限公司 | Detection and graphical display method for local dimming module in liquid crystal television |
| CN114822333A (en) * | 2022-04-20 | 2022-07-29 | 重庆翰博显示科技研发中心有限公司 | Method and device for detecting and repairing abnormal pixels of Microled or Miniled in real time |
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