CN103021307B - A kind of bearing calibration of LED display pointwise correction equipment of simulated field - Google Patents
A kind of bearing calibration of LED display pointwise correction equipment of simulated field Download PDFInfo
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- CN103021307B CN103021307B CN201210560324.1A CN201210560324A CN103021307B CN 103021307 B CN103021307 B CN 103021307B CN 201210560324 A CN201210560324 A CN 201210560324A CN 103021307 B CN103021307 B CN 103021307B
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Abstract
The invention discloses a kind of bearing calibration of LED display pointwise correction equipment of simulated field, described calibration equipment comprises darkroom, and being arranged on LED display, display screen calibrated mount, LED control system and the means for correcting in darkroom, the tested row centre-height on LED display is consistent with the centre-height of means for correcting; Described display screen calibrated mount comprises base and gripper shoe, gripper shoe bottom is rotationally connected with base, and the LED display back side abuts against in gripper shoe surface, and LED display bottom is placed on base, LED display is line by line when pointwise correction, and the angle of adjusting gripper shoe and base is θ. LED display pointwise correction method of the present invention is carried out in the darkroom of disturbing without environmental factor, get rid of the interference of unfavorable factor to calibration result such as environment, proofreading and correct difficulty reduces greatly, simulated field calculation correction point and LED display plane measured point the be expert at plane and the LED display plane angulation that form, correction efficiency is higher.
Description
Technical field
The present invention relates to LED display pointwise correction technology, relate in particular to the bearing calibration of the LED display pointwise correction equipment of simulated field.
Background technology
At present, in the time producing, just there is brightness, the inconsistent phenomenon of wavelength in LED chip, and the manufacturer of each LED display is due to the difference of production technology, production equipment, thereby cause full-color LED display screen to have the phenomenons such as light tone is poor, mosaic, had a strong impact on the display effect of LED display. Therefore, be necessary very much full-color LED display screen to carry out pointwise correction, thus brightness, the uniformity of chromaticity etc. of raising LED display.
Current LED display pointwise correction is mainly to proofread and correct in the erecting bed of LED display, generally selects evening light dark, have no occluder before LED display, and visibility is high, and fine day carries out under the condition of around disturbing without intense light source. Whole LED display pointwise correction flow process normally wants 2 knack persons to complete at 3-5 hour, timing is subject to surrounding environment influence larger, often there is uncertain factor to have (such as bad weather, peripheral obstacle block etc.), sometimes will spend even just can complete two evenings a whole evening. So current LED display pointwise correction method exists because of environment reason cannot proofread and correct, proofread and correct the shortcomings such as efficiency is low, correction error is large, this bearing calibration simultaneously needs a large amount of human and material resources and time, and economic benefit is low.
Summary of the invention
The object of this invention is to provide one and can get rid of environmental disturbances, correction difficulty is low, has the bearing calibration of the LED display pointwise correction equipment of the simulated field of good technological value and economic benefit.
For achieving the above object, the LED display pointwise correction equipment of a kind of simulated field of the present invention, it is characterized in that: described calibration equipment comprises darkroom, and be arranged on LED display, display screen calibrated mount, LED control system and the means for correcting in darkroom, LED control system is electrically connected with LED display and means for correcting respectively, tested row centre-height on LED display is consistent with the centre-height of means for correcting, and the distance of means for correcting and LED display is greater than 15m;
Described display screen calibrated mount comprises base and gripper shoe, gripper shoe bottom is rotationally connected with base, the LED display back side abuts against in gripper shoe surface, LED display bottom is placed on base, LED display is line by line when pointwise correction, adjust the angle of gripper shoe and base, described check point is 30-100m apart from the vertical range of LED display, the check point of LED display and the LED display plane measured point angle that the plane that forms becomes with LED display plane of being expert at is θ, θ, for setting value, is 45-85 °.
In the present invention, because gripper shoe bottom is rotationally connected with base, so the angle between gripper shoe and base is adjustable. LED display is resisted against in gripper shoe simultaneously, is the angle of inclination of capable of regulating LED display by the angle of inclination of adjusting gripper shoe like this, simple to operation.
Described gripper shoe two ends, bottom and the pivot joint of base tight fit. Adjust the angle between gripper shoe and base by the rotational support plate of exerting oneself, owing to being tight fit between gripper shoe and base, in the time removing the power acting in gripper shoe, gripper shoe keeps inactive state.
In the present invention, adopt above calibration equipment, LED display is fixed on display screen calibrated mount, and the straightened up in place point of simulating LED display and the LED display plane measured point θ angle that the plane that forms becomes with LED display plane of being expert at, the base degree into θ angle of LED display and display screen calibrated mount is fixed, thereby consistent be expert at plane and the LED display plane angulation of formation of straightened up in place point and LED display plane measured point, reach the effect of simulated field.
On described base, be also provided with the barrier plate that prevents that LED display base from sliding, thereby better LED display fixed.
Described means for correcting comprises and gathers the main controller that LED display shows the light sensation detector of monochrome information when red, green, blue and the detectable signal of light sensation detector transferred to correction signal, and main controller is electrically connected with LED control system.
Described light sensation detector is industrial camera or CCD(imageing sensor).
In described darkroom, be also provided with attemperating unit, thereby keep the temperature in darkroom.
Described darkroom length is more than or equal to 18m, surroundings wall and ceiling brush no-reflection pitch-dark (sub-light is pitch-dark) or hang with no-reflection black cloth, carpet is black no-reflection, in darkroom, light leak is not reflective, be difficult for dust, thereby ensure to proofread and correct environment uniformity, overcome the correction error of bringing due to environmental factor.
The bearing calibration of the LED display pointwise correction equipment of simulated field of the present invention, it comprises step:
1) set up the not opaque darkroom of light leak, attemperating unit is set in darkroom;
2) when straightened up in place, the vertical range of the check point of LED display and LED display plane is that correction distance is set to h, the tested row centre distance of LED display plane ground vertical height is that terrain clearance is set to H, the check point a that obtains on-the-spot LED display by formula arctan (h/H) and the LED display plane measured point angle theta that the plane that forms becomes with LED display plane of being expert at;
3) simulated field, in adjustment display screen calibrated mount, the angle of gripper shoe and base is θ, again the LED display back side is butted on to gripper shoe surface, bottom is butted on base, the angle of LED display and base is also θ, adjust the height of means for correcting simultaneously, the centre-height of means for correcting is consistent with the centre-height of the tested row of LED display plane;
4) install, the light sensation detector of means for correcting gathers the monochrome information of detected row demonstration red, green, blue in LED display, and detected value is sent to main controller, detected value is converted to corrected value by main control, and corrected value is sent to LED control system, LED control system is carried out pointwise correction to the detected row of LED display;
5) proofread and correct completely, judged that whether the brightness of tested row of LED display is even by naked eyes, if brightness is even, this row is proofreaied and correct complete; If brightness irregularities, repeating step 4), again proofread and correct;
6) repeating step 2, step 3), step 4) and step 5), carries out pointwise correction line by line to LED display, until the correction of whole LED display is complete.
LED display pointwise correction method of the present invention is carried out in the darkroom of disturbing without environmental factor, get rid of the interference of unfavorable factor to calibration result such as environment, proofreading and correct difficulty reduces greatly, simulated field calculation correction point and LED display plane measured point be expert at plane and the LED display plane angulation of formation, adjust the angle of inclination of LED display by display screen calibrated mount, be expert at plane and the LED display plane angulation of formation of itself and straightened up in place point and LED display plane measured point is consistent, thereby simulated field carries out the bright chromaticity correction of pointwise to LED display, the relative straightened up in place of effect that simulated field is proofreaied and correct is significantly increased, uniformity is better, proofread and correct efficiency higher, improve the display effect of LED display, and simulated field correction can be saved personnel's trip expenses, there is extraordinary technological value and economic benefit.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Fig. 1 is the structural representation of LED display pointwise correction equipment of the present invention;
Fig. 2 is that the best of the present invention is watched a little and LED display plane angulation;
Fig. 3 is the flow chart of bearing calibration of the present invention.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is further detailed explanation:
As shown in Figure 1 or 2, the LED display pointwise correction equipment of a kind of simulated field of the present invention, described calibration equipment comprises darkroom 1, and be arranged on LED display 2, display screen calibrated mount 3, LED control system 4 and the means for correcting 5 in darkroom 1, LED control system 4 is electrically connected with LED display 2 and means for correcting 5 respectively, tested row centre-height on LED display 2 is consistent with the centre-height of means for correcting 5, and means for correcting 5 is greater than 15m with the distance of LED display 2;
Described display screen calibrated mount 3 comprises base 31 and gripper shoe 32, gripper shoe 32 bottoms and base 31 are rotationally connected, LED display 2 back sides abut against in gripper shoe 32 surfaces, LED display 2 bottoms are placed on base 31, LED display 2 is line by line when pointwise correction, adjust the angle of gripper shoe 32 and base 31, described check point a is 30-100m apart from the vertical range of LED display 2, the check point a of LED display and the LED display 2 plane measured points angle that the plane that forms becomes with LED display 2 planes of being expert at is θ, θ, for setting value, is 45-85 °.
In the present invention, LED control system 4 can be connected with LED display 2 and means for correcting 5 respectively by wireless or cable network.
In the present invention, because gripper shoe 32 bottoms and base 31 are rotationally connected, so the angle between gripper shoe 32 and base 31 is adjustable. LED display 2 is resisted against in gripper shoe 32 simultaneously, is the angle of inclination of capable of regulating LED display 2 by the angle of inclination of adjusting gripper shoe 32 like this, simple to operation.
Described gripper shoe 32 two ends, bottom and base 31 tight fit pivot joints. Adjust the angle between gripper shoe 32 and base 31 by the rotational support plate 32 of exerting oneself, owing to being tight fit between gripper shoe 32 and base 31, in the time removing the power acting in gripper shoe 32, gripper shoe 32 keeps inactive state. In the present invention, gripper shoe 32 can also be rotationally connected by other known structure and bases 31 of being rotatably assorted, such as gear cooperation etc.
On described base 31, be also provided with the barrier plate 33 that prevents that LED display 2 bases from sliding, thereby better by fixing LED display 2.
Described means for correcting 5 comprises the light sensation detector 51 that gathers the monochrome information of LED display 2 while showing red, green, blue and the main controller 52 that the detectable signal of light sensation detector 51 is transferred to correction signal, and main controller 52 is electrically connected with LED control system 4.
Described light sensation detector 51 is industrial camera or CCD(imageing sensor).
In described darkroom 1, be also provided with attemperating unit 6, thereby keep the temperature in darkroom 1.
Long 1 degree in described darkroom is more than or equal to 18m, surroundings wall and ceiling brush no-reflection pitch-dark (sub-light is pitch-dark) or hang with no-reflection black cloth, carpet is black no-reflection, in darkroom 1, light leak is not reflective, be difficult for dust, thereby ensure to proofread and correct environment uniformity, overcome the correction error of bringing due to environmental factor.
As shown in Figure 3, the bearing calibration of the LED display pointwise correction equipment of simulated field of the present invention, it comprises step:
1) set up the not opaque darkroom 1 of light leak, the interior attemperating unit 6 that arranges in darkroom 1;
2) when straightened up in place, the vertical range of the check point a of LED display 2 and LED display 2 planes is that correction distance is set to h, the LED display tested row centre distance of 2 plane ground vertical height is that terrain clearance is set to H, the check point a that obtains on-the-spot LED display by formula arctan (h/H) and the LED display 2 plane measured points angle theta that the plane that forms becomes with LED display 2 planes of being expert at;
3) simulated field, adjusting gripper shoe 32 in display screen calibrated mount 3 is θ with the angle of base 31, again LED display 2 back sides are butted on to gripper shoe 32 surfaces, bottom is butted on base 31, LED display 2 is also θ with the angle of base 31, adjust the height of means for correcting 5 simultaneously, the centre-height of means for correcting 5 is consistent with the centre-height of the tested row of LED display 2 plane;
4) install, the light sensation detector 51 of means for correcting 5 gathers the monochrome information of detected row demonstration red, green, blue in LED display 2, and detected value is sent to main controller 52, detected value is converted to corrected value by main control 52, and corrected value is sent to LED control system 4, LED control system 4 is carried out pointwise correction to the detected row of LED display 2;
5) proofread and correct completely, judged that whether the brightness of detected row of LED display 2 is even by naked eyes, if brightness is even, this row is proofreaied and correct complete; If brightness irregularities, repeating step 4), again proofread and correct;
6) repeating step 2, step 3), step 4) and step 5), carries out pointwise correction line by line to LED display 2, until that whole LED display 2 is proofreaied and correct is complete.
Adopt the LED display pointwise correction method of above simulated field, get rid of the impact of the unfavorable factors such as on-the-spot weather, shelter, environment, proofread and correct difficulty and greatly reduce, really simulate LED display erecting bed and carry out pointwise correction, improve LED display display effect.
Claims (7)
1. the bearing calibration of the LED display pointwise correction equipment of a simulated field, it is characterized in that: described calibration equipment comprises darkroom, and be arranged on LED display, display screen calibrated mount, LED control system and the means for correcting in darkroom, LED control system is electrically connected with LED display and means for correcting respectively, tested row centre-height on LED display is consistent with the centre-height of means for correcting, and the distance of means for correcting and LED display is greater than 15m;
Described display screen calibrated mount comprises base and gripper shoe, gripper shoe bottom is rotationally connected with base, the LED display back side abuts against in gripper shoe surface, LED display bottom is placed on base, LED display is line by line when pointwise correction, adjust the angle of gripper shoe and base, the straightened up in place point of simulation LED display is 30-100m apart from the vertical range of LED display, the check point of LED display and the LED display plane measured point angle that the plane that forms becomes with LED display plane of being expert at is θ, θ, for setting value, is 45-85 °;
The method of described correction comprises the following steps:
1) set up the not opaque darkroom of light leak, attemperating unit is set in darkroom;
2) when straightened up in place, the vertical range of the check point of LED display and LED display plane is that correction distance is set to h, the tested row centre distance of LED display plane ground vertical height is that terrain clearance is set to H, the check point that obtains on-the-spot LED display by formula arctan (h/H) and the LED display plane measured point angle theta that the plane that forms becomes with LED display plane of being expert at;
3) simulated field, in adjustment display screen calibrated mount, the angle of gripper shoe and base is θ, again the LED display back side is butted on to gripper shoe surface, bottom is butted on base, the angle of LED display and base is also θ, adjust the height of means for correcting, the centre-height of means for correcting is consistent with the centre-height of the tested row of LED display plane, and the distance of means for correcting and LED display is greater than 15m simultaneously;
4) install, the light sensation detector of means for correcting gathers the monochrome information of detected row demonstration red, green, blue in LED display, and detected value is sent to main controller, detected value is converted to corrected value by main control, and corrected value is sent to LED control system, LED control system is carried out pointwise correction to the detected row of LED display;
5) proofread and correct completely, judged that whether the brightness of tested row of LED display is even by naked eyes, if brightness is even, this row is proofreaied and correct complete; If brightness irregularities, repeating step 4), again proofread and correct;
6) repeating step 2, step 3), step 4) and step 5), carries out pointwise correction line by line to LED display, until the correction of whole LED display is complete.
2. the bearing calibration of the LED display pointwise correction equipment of simulated field according to claim 1, is characterized in that: described gripper shoe two ends, bottom and the pivot joint of base tight fit.
3. the bearing calibration of the LED display pointwise correction equipment of simulated field according to claim 1, is characterized in that: on described base, be also provided with the barrier plate that prevents that LED display base from sliding.
4. the bearing calibration of the LED display pointwise correction equipment of simulated field according to claim 1, it is characterized in that: described means for correcting comprises and gather the main controller that LED display shows the light sensation detector of monochrome information when red, green, blue and the detectable signal of light sensation detector transferred to correction signal, main controller is electrically connected with LED control system.
5. the bearing calibration of the LED display pointwise correction equipment of simulated field according to claim 4, is characterized in that: described light sensation detector is industrial camera or CCD.
6. the bearing calibration of the LED display pointwise correction equipment of simulated field according to claim 1, is characterized in that: in described darkroom, be also provided with attemperating unit.
7. the bearing calibration of the LED display pointwise correction equipment of simulated field according to claim 1, is characterized in that: described darkroom length is more than or equal to 18m.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210560324.1A CN103021307B (en) | 2012-12-20 | 2012-12-20 | A kind of bearing calibration of LED display pointwise correction equipment of simulated field |
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| CN201210560324.1A CN103021307B (en) | 2012-12-20 | 2012-12-20 | A kind of bearing calibration of LED display pointwise correction equipment of simulated field |
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| CN103021307B true CN103021307B (en) | 2016-05-25 |
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| CN109272968A (en) * | 2018-11-21 | 2019-01-25 | 维沃移动通信有限公司 | A kind of screen nonuniformity calibration method and terminal device |
| CN110057549B (en) * | 2019-04-08 | 2021-06-01 | Tcl华星光电技术有限公司 | Light source illumination detection method and system |
| TWI739322B (en) * | 2020-02-26 | 2021-09-11 | 佳世達科技股份有限公司 | Color calibrating auxiliary module and color calibrating method |
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Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101101554B1 (en) * | 2010-08-19 | 2012-01-02 | 한국과학기술원 | Active organic light-emitting display |
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|---|---|---|---|---|
| JP2007078502A (en) * | 2005-09-14 | 2007-03-29 | Oputo System:Kk | Photometric device of light emitter |
| CN101192362A (en) * | 2006-12-01 | 2008-06-04 | 康佳集团股份有限公司 | LEDLED display screen on site single-point calibration device and its method |
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