CN104978930B - The abnormal lamp point processing method of brightness after LED display correction - Google Patents
The abnormal lamp point processing method of brightness after LED display correction Download PDFInfo
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Abstract
The present invention relates to the abnormal lamp point processing method of brightness after a kind of correction of LED display, applied to the target LED display for including multiple LED points, it includes step：(a) correction coefficient of the multiple LED point of the target LED display is obtained；(b) LED point that correction coefficient in the multiple LED point is located in the coefficient of setting interval is found out as the abnormal lamp point of brightness；(c) correction coefficient of the abnormal lamp point of the brightness is adjusted to target correction coefficient；And (d) preserves the adjustment post-equalization coefficient of the abnormal lamp point of the brightness to target location.Therefore, the present invention can be handled because imaging device has the abnormal lamp point of brightness that dust is brought after calibration, it is not necessary to be re-calibrated again after cleaning equipment；It need not manually go to search the abnormal lamp point position of all brightness, simplify process step；In addition, the abnormal lamp point of all brightness can be handled disposably, processing speed is improved.
Description
Technical field
The present invention relates to display technology field, the abnormal lamp point processing of brightness after more particularly to a kind of LED display correction
Method.
Background technology
With the fast development of small space distance LED display screen, now for the LED display of small spacing, in order to reach preferably
Overall uniformity, can be all corrected before dispatching from the factory, then just arrive terminal user.
However, situations below occurs in trimming process：The various imaging devices (digital camera, industrial camera) used
Photo-sensitive cell can be accumulated during prolonged use under dust, there is dust on screen sports school timing LED point but correct it
Afterwards cleaning LED display after exist dust LED point can it is partially bright, timing LED point does not work or brightness is too low but corrects it
Change after LED point that the LED point of the position can be partially bright afterwards, so in correction collection view data, some LED points it is bright
Degree several situations will be influenceed by more than, caused the brightness of brightness ratio actual lamp point collected low, finally calculated LED
A larger correction coefficient value can be given during point calibration coefficient, so in the case where enabling correction, this actual ratio of LED point
The brightness of other LED points is high, and the uniformity for ultimately resulting in whole LED display is had a greatly reduced quality.
For problem above, prior art one allows professional people to set imaging for purchase imaging device cleaning equipment (kit)
It is standby to carry out cleaning dust, or imaging device is sent to the professional specially cleaned cleaned.But this kind of technical scheme
Need to know whether imaging device is clean before correction, if finding that bright spot problem goes cleaning imaging to set again after having corrected
It is standby, then need to re-calibrate, cause repeated work；Prior art two goes to find bright spot in LED display to be artificial using eyes
On position, then the manual de-regulation LED point correction coefficient, but look for the position of all bright spots to be relatively stranded using human eye
Difficulty, and it is time-consuming longer.
The content of the invention
Therefore, to overcome the defect and deficiency that prior art is present, the present invention provides bright after a kind of LED display correction
The abnormal lamp point processing method of degree.
Specifically, the abnormal lamp point processing method of brightness after a kind of LED display correction provided in an embodiment of the present invention, should
To contain the target LED display of multiple LED points.The abnormal lamp point processing side of brightness after the LED display correction
Method includes step：(a) correction coefficient of the multiple LED point of the target LED display is obtained；(b) institute is found out
LED point that correction coefficient in multiple LED points is located in the coefficient of setting interval is stated as the abnormal lamp point of brightness；(c) adjust
The correction coefficient of the abnormal lamp point of the brightness is to target correction coefficient；And (d) is preserved after the adjustment of the abnormal lamp point of the brightness
Correction coefficient is to target location.
In one embodiment of the invention, above-mentioned steps (a) include：It is described to obtain to read correction coefficient storage file
The correction coefficient of the multiple LED point of target LED display, or from the control system of the target LED display
The correction coefficient of the multiple LED point of the target LED display is obtained in correction coefficient memory module in system.
In one embodiment of the invention, the coefficient interval in above-mentioned steps (b) is the multiple by calculating
The average value of the correction coefficient of LED point is floated again on the basis of the average value or downward one sets percentage threshold and obtained
Arrive.
In another embodiment of the present invention, the coefficient interval in above-mentioned steps (b) is defeated manually by user
Enter an empirical value and obtain.
In one embodiment of the invention, the target correction coefficient in above-mentioned steps (c) is described by calculating
The average value of the correction coefficient of remaining LED point in multiple LED points in addition to the abnormal lamp point of the brightness and obtain.
In one embodiment of the invention, the target correction coefficient in above-mentioned steps (c) is manual by user
Input an empirical value and obtain.
In one embodiment of the invention, the target location in above-mentioned steps (d) is correction coefficient storage file
Or the correction coefficient memory module in the control system of the target LED display.
In addition, the abnormal lamp point processing method of brightness after a kind of LED display correction provided in an embodiment of the present invention, is applied
In the target LED display for including multiple LED points.The abnormal lamp point processing method of brightness after the LED display correction
Including step：(i) correction coefficient of the multiple LED point of the target LED display is obtained；(ii) find out described
LED point of the correction coefficient in the coefficient interval of setting is used as the abnormal lamp point of original intensity in multiple LED points；(iii)
Control lights the target LED display and rejects reality in the abnormal lamp point of the original intensity not based on human eye vision
The abnormal LED point of brightness and obtain the abnormal lamp point of remaining brightness；(iv) the correction system of the abnormal lamp point of the remaining brightness is adjusted
Count to target correction coefficient；And (v) preserves the adjustment post-equalization coefficient of the abnormal lamp point of the remaining brightness to target location.
In one embodiment of the invention, the coefficient interval of the setting in above-mentioned steps (ii) is by calculating
The average value for stating the correction coefficient of multiple LED points floats or the setting percentage threshold of downward one on the basis of the average value again
It is worth and obtains or an empirical value is manually entered by user and obtained；The target correction coefficient in above-mentioned steps (iv)
It is the correction system by calculating other LED points in the multiple LED point in addition to the abnormal LED point of the original intensity
Several average value and obtain or an empirical value be manually entered by user and obtained.
In one embodiment of the invention, above-mentioned steps (iii) include：Draw out a subtabulation and show that the target LED shows
The image of the Luminance Distribution of the multiple LED point of showing device, wherein represents the abnormal lamp of the original intensity in described image
The gray value of the position of point is different from representing other in addition to the abnormal lamp point of the original intensity in the multiple LED point
The gray value of the position of LED point, in order to which human eye is watched；And compare described initial in described image using human eye vision
The abnormal LED point of intrinsic brilliance when brightness exception lamp point and the target LED display are lighted, it is described initial to weed out
In brightness exception lamp point when the target LED display is lighted the abnormal LED point of actual not brightness.
From the foregoing, it will be observed that the embodiment of the present invention can be handled because imaging device has the brightness that dust is brought after calibration
Abnormal lamp point, it is not necessary to re-calibrated again after cleaning equipment；It need not manually go to search the abnormal lamp point position of all brightness
Put, simplify process step；In addition, the abnormal lamp point of all brightness can be handled disposably, processing speed is improved.
By the detailed description below with reference to accompanying drawing, other side and feature of the invention becomes obvious.But should know
Road, the accompanying drawing is only the purpose design explained, not as the restriction of the scope of the present invention, because it should refer to
Appended claims.It should also be noted that unless otherwise noted, it is not necessary to scale accompanying drawing, they only try hard to concept
Ground illustrates structure described herein and flow.
Brief description of the drawings
Below in conjunction with accompanying drawing, the embodiment to the present invention is described in detail.
The stream of the abnormal lamp point processing method of brightness after Fig. 1 corrects for a kind of LED display of first embodiment of the invention
Cheng Tu.
The stream of the abnormal lamp point processing method of brightness after Fig. 2 corrects for a kind of LED display of second embodiment of the invention
Cheng Tu.
The stream of the abnormal lamp point processing method of brightness after Fig. 3 corrects for a kind of LED display of third embodiment of the invention
Cheng Tu.
Embodiment
In order to facilitate the understanding of the purposes, features and advantages of the present invention, below in conjunction with the accompanying drawings to the present invention
Embodiment be described in detail.
【First embodiment】
Fig. 1 is referred to, the abnormal lamp point processing of brightness after a kind of LED display correction that first embodiment of the invention is provided
Method is applied to the target LED display comprising multiple LED points and including step S101, S103, S105 and S107, specifically
It is as follows：
Step S101：Read the correction coefficient in the control system of correction coefficient storage file or target LED display
The correction coefficient of memory module storage is to obtain the correction coefficient of multiple LED points of target LED display.Herein, target
LED display can be with LED box or LED display, and it can be monochromatic, double-colored or all-colour LED display device；Correction system
Number storage file is for example stored in database and associated with the multiple LED point of target LED display, and school
Positive coefficient memory module is, for example, on the reception card of the control system of target LED display.
Step S103：Find out the correction coefficient that correction coefficient in the multiple LED point is more than the multiple LED point
Average value p% LED point be used as the abnormal lamp point of brightness；Namely correction coefficient is found out in the coefficient interval of setting
LED point is used as the abnormal lamp point of brightness.Herein, coefficient interval is, for example, to be more than or equal to [Avg × (1+p%)], namely Avg's
On the basis of float p%, wherein Avg represents the average value of the correction coefficient of the multiple LED point, and it is to be appreciated that
The correction coefficient of each LED point includes how many components, then the average value Avg of its correction coefficient is also correspondingly included
Same amount of component；In addition p% value is by being manually set, and it can be 20%, but the present invention is not limited thereto.
In other embodiment, the coefficient interval of the setting can also be manually entered an empirical value by user and obtain.
Step S105：Calculate the correction system of the remaining LED point in the multiple LED point in addition to the abnormal lamp point of brightness
Several average value CoefavgAs target correction coefficient and the correction coefficient of the abnormal lamp point of brightness is adjusted to target correction coefficient
Coefavg。
Step S107：The adjustment post-equalization coefficient of the abnormal lamp point of brightness is preserved to the correction coefficient storage file or described
The correction coefficient memory module in the control system of target LED display.
【Second embodiment】
Fig. 2 is referred to, the abnormal lamp point processing of brightness after a kind of LED display correction that second embodiment of the invention is provided
Method is applied to the target LED display comprising multiple LED points and including step S201, S203, S205 and S207, specifically
It is as follows：
Step S201：Read the correction coefficient in the control system of correction coefficient storage file or target LED display
The correction coefficient of memory module storage is to obtain the correction coefficient of multiple LED points of target LED display.Herein, target
LED display can be with LED box or LED display, and it can be monochromatic, double-colored or all-colour LED display device；Correction system
Number storage file is for example stored in database and associated with the multiple LED point of target LED display, and school
Positive coefficient memory module is, for example, on the reception card of the control system of target LED display.
Step S203：Find out the correction coefficient that correction coefficient in the multiple LED point is more than the multiple LED point
Average value p% LED point be used as the abnormal lamp point of brightness；Namely correction coefficient is found out in the coefficient interval of setting
LED point is used as the abnormal lamp point of brightness.Herein, coefficient interval is, for example, to be more than or equal to [Avg × (1+p%)], namely Avg's
On the basis of float p%, wherein Avg represents the average value of the correction coefficient of the acquisition, p% value by being manually set, its
Can be 20%, but the present invention is not limited thereto.In other embodiments, the coefficient interval of the setting can also be passed through
User is manually entered an empirical value and obtained.
Step S205：Receive the target correction coefficient Coef that is manually entered of user and adjust the correction system of the abnormal lamp point of brightness
Count to target correction coefficient Coef.
Step S207：The adjustment post-equalization coefficient of the abnormal lamp point of brightness is preserved to the correction coefficient storage file or described
The correction coefficient memory module in the control system of target LED display.
【3rd embodiment】
Fig. 3 is referred to, the abnormal lamp point processing of brightness after a kind of LED display correction that third embodiment of the invention is provided
Method be applied to the target LED display comprising multiple LED points and including step S301, S303, S305, S307 and
S309, it is specific as follows：
Step S301：Read the correction coefficient in the control system of correction coefficient storage file or target LED display
The correction coefficient of memory module storage is to obtain the correction coefficient of multiple LED points of target LED display.Herein, target
LED display can be with LED box or LED display, and it can be monochromatic, double-colored or all-colour LED display device；Correction system
Number storage file is for example stored in database and associated with the multiple LED point of target LED display, and school
Positive coefficient memory module is, for example, on the reception card of the control system of target LED display.
Step S303：Find out the correction coefficient that correction coefficient in the multiple LED point is more than the multiple LED point
Average value p% LED point be used as the abnormal lamp point of original intensity；Namely find out the coefficient interval that correction coefficient is located at setting
Interior LED point is used as the abnormal lamp point of original intensity.Herein, coefficient interval is, for example, to be more than or equal to [Avg × (1+p%)],
Float p% on the basis of Avg, and wherein Avg represents the average value of the correction coefficient of the acquisition, and p% value passes through people
For setting, it can be 20%, but the present invention is not limited thereto.In other embodiments, the coefficient of the setting is interval
Can be that an empirical value is manually entered by user and obtained.
Step S305：Control lights the target LED display and rejects the abnormal lamp of original intensity based on human eye vision
Reality in point not the abnormal LED point of brightness and obtain the abnormal lamp point of remaining brightness.Concretely：Drawing out a pair can
The image of the Luminance Distribution of the multiple LED point of target LED display is embodied, in described image, original intensity is different
Normal lamp point is drawn in highlighted mode, with the gray value (example for the position for represent the abnormal lamp point of original intensity in described image
Such as the position for other LED points for 255) being different from representing in the multiple LED point in addition to the abnormal lamp point of original intensity
Gray value (such as 50), in order to which human eye is watched；The original intensity compared afterwards using human eye vision in the image of drafting is abnormal
The abnormal LED point of intrinsic brilliance when lamp point and target LED display are lighted, with weed out in the abnormal lamp point of original intensity
Actual not brightness abnormal LED point when target LED display is lighted.Herein it is understood that list can also be used
Mode represents the Luminance Distribution situation of the multiple LED point of target LED display, simply using the side of drawing image
Formula is more directly perceived, be easier to operate to.
Step S307：Calculate the school of other LED points in the multiple LED point in addition to the abnormal lamp point of original intensity
The average value of positive coefficient is as target correction coefficient or receives the target correction coefficient that is manually entered of user and adjusts remaining bright
The correction coefficient of the abnormal lamp point of degree is to target correction coefficient.
Step S309：Preserve the adjustment post-equalization coefficient of the abnormal lamp point of remaining brightness to the correction coefficient storage file or
The correction coefficient memory module in the control system of the target LED display.
In above-mentioned first, second, and third embodiment, the brightness exception LED that step S103, S203 and S303 are found out
The abnormal lamp point (such as bright light) of brightness that lamp point may be produced comprising following several situations：1) it is dead lamp in LED display, dark
Lamp, timing can give larger correction coefficient, if but dead lamp, concealed light in LED display are changed after correction, that
These lamp points will turn into bright light；2) there is dust in LED display, be cleaned after correction caused by LED display
Bright light；3) bright light after correction is caused due to there is dust on camera lens, photo-sensitive cell；4) due to LED display for example
In LED box production process during gluing, glue can be fallen on some LED points, causes these LED points dimmed, timing can give one
Individual big correction coefficient, the glue after correction on these LED points can become bright light after removing.
In addition, it is noted that step S103, S203 and S303 in above-mentioned first, second, and third embodiment are equal
It is to be illustrated as an example as bright light using the abnormal LED point of brightness, but the present invention is not limited thereto, and can also be applied to bright
The abnormal LED point of degree is concealed light, the situation of dead lamp, and correspondingly, the coefficient interval of setting can be less than being equal to [Avg × (1-
P%)]；Correspondingly, the step S305 in 3rd embodiment is then the abnormal lamp of original intensity for rejecting reality not concealed light, dead lamp
Point.
In summary, the above embodiment of the present invention can be handled because imaging device has what dust was brought after calibration
Brightness exception lamp point, it is not necessary to re-calibrated again after cleaning equipment；It need not manually go to search the abnormal lamp of all brightness
Point position, simplifies process step；In addition, the abnormal lamp point of all brightness can be handled disposably, processing speed is improved.
So far, specific case used herein is handled the abnormal lamp point of brightness after the LED display correction of the present invention
The principle and embodiment of method are set forth, the explanation of above example be only intended to help to understand the present invention method and
Its core concept；Simultaneously for those of ordinary skill in the art, according to the thought of the present invention, in embodiment and should
With will change in scope, in summary, this specification content should not be construed as limiting the invention, of the invention
Protection domain should be defined by appended claim.
Claims (10)
1. the abnormal lamp point processing method of brightness after a kind of LED display correction, applied to the target for including multiple LED points
LED display；Characterized in that, the abnormal lamp point processing method of brightness includes step after the LED display correction：
(a) the existing correction coefficient of the multiple LED point of the target LED display is obtained；
(b) LED point of the correction coefficient in the coefficient interval of setting in the multiple LED point is found out different as brightness
Normal lamp point；
(c) correction coefficient of the abnormal lamp point of the brightness is adjusted to target correction coefficient；And
(d) the adjustment post-equalization coefficient of the abnormal lamp point of the brightness is preserved to target location.
2. the abnormal lamp point processing method of brightness after LED display correction as claimed in claim 1, it is characterised in that step
(a) include：Correction coefficient storage file is read to obtain the correction of the multiple LED point of the target LED display
Coefficient, or obtain from the correction coefficient memory module in the control system of the target LED display target LED
The correction coefficient of the multiple LED point of display device.
3. the abnormal lamp point processing method of brightness after LED display correction as claimed in claim 1, it is characterised in that step
(b) in, the coefficient interval is by calculating the average value of the correction coefficient of the multiple LED point again in the average value
On the basis of float or lower one set percentage threshold and obtain.
4. the abnormal lamp point processing method of brightness after LED display correction as claimed in claim 1, it is characterised in that step
(b) in, the coefficient interval is to be manually entered an empirical value by user and obtain.
5. the abnormal lamp point processing method of brightness after LED display correction as claimed in claim 1, it is characterised in that step
(c) in, the target correction coefficient is by calculating the residue in the multiple LED point in addition to the abnormal lamp point of the brightness
The average value of the correction coefficient of LED point and obtain.
6. the abnormal lamp point processing method of brightness after LED display correction as claimed in claim 1, it is characterised in that step
(c) in, the target correction coefficient is to be manually entered an empirical value by user and obtain.
7. after LED display correction as claimed in claim 1 in the abnormal lamp point processing method of brightness, step (d), the mesh
Mark is set to the correction coefficient storage mould in the control system of correction coefficient storage file or the target LED display
Block.
8. the abnormal lamp point processing method of brightness after a kind of LED display correction, applied to the target for including multiple LED points
LED display；Characterized in that, the abnormal lamp point processing method of brightness includes step after the LED display correction：
(i) the existing correction coefficient of the multiple LED point of the target LED display is obtained；
(ii) LED point that correction coefficient in the multiple LED point is located in the coefficient of setting interval is found out as initial
Brightness exception lamp point；
(iii) control is lighted the target LED display and rejected based on human eye vision in the abnormal lamp point of the original intensity
Reality not the abnormal LED point of brightness and obtain the abnormal lamp point of remaining brightness；
(iv) correction coefficient of the abnormal lamp point of the remaining brightness is adjusted to target correction coefficient；And
(v) the adjustment post-equalization coefficient of the abnormal lamp point of the remaining brightness is preserved to target location.
9. the abnormal lamp point processing method of brightness after LED display correction as claimed in claim 8, it is characterised in that
In step (ii), the coefficient interval of the setting is the average value by calculating the correction coefficient of the multiple LED point
Floated again on the basis of the average value or lower one and set percentage threshold and obtain or be manually entered by user
One empirical value and obtain；
In step (iv), the target correction coefficient is by calculating in the multiple LED point except the original intensity is abnormal
The average value of the correction coefficient of other LED points outside lamp point and obtain either being manually entered an empirical value by user and
Obtain.
10. the abnormal lamp point processing method of brightness after LED display correction as claimed in claim 8, it is characterised in that step
(iii) include：
Draw out a subtabulation show the target LED display the multiple LED point Luminance Distribution image, wherein institute
The gray value for stating the position that the abnormal lamp point of the original intensity is represented in image is different from representing to remove institute in the multiple LED point
The gray value of the position of other LED points outside the abnormal lamp point of original intensity is stated, in order to which human eye is watched；And
The abnormal lamp point of the original intensity and the target LED display compared using human eye vision in described image is lighted
When the abnormal lamp point of intrinsic brilliance, lighted with weeding out in the abnormal lamp point of the original intensity in the target LED display
Shi Shiji not abnormal LED points of brightness.
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| CN112259031A (en) * | 2019-07-02 | 2021-01-22 | 西安诺瓦星云科技股份有限公司 | Method, device and system for correcting correction coefficient of display screen and computer readable medium |
| CN111261079B (en) * | 2020-03-27 | 2023-10-31 | 深圳市洲明科技股份有限公司 | Method for detecting abnormal phenomena of bright and dark spots |
| CN113281017B (en) * | 2021-06-09 | 2024-06-25 | 深圳市洲明科技股份有限公司 | Quality detection method, terminal and storage medium for display screen |
| CN114299857B (en) * | 2021-12-30 | 2023-05-30 | 卡莱特云科技股份有限公司 | LED display screen multilayer correction method and device and computer equipment |
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| CN100578179C (en) * | 2007-08-21 | 2010-01-06 | 友达光电（苏州）有限公司 | Method for measuring luminescent picture brightness uniformity |
| CN100587794C (en) * | 2007-10-25 | 2010-02-03 | 长春希达电子技术有限公司 | Panel display local and whole-screen brightness uniformity correction method |
| CN103413526B (en) * | 2013-08-19 | 2015-08-05 | 西安诺瓦电子科技有限公司 | The correction method for LED lamp panel of LED display |
| CN104200775A (en) * | 2014-09-22 | 2014-12-10 | 西安电子科技大学 | LED defective pixel treatment method |
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