CN202339697U - Device for adjusting color white balance of display equipment - Google Patents
Device for adjusting color white balance of display equipment Download PDFInfo
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- CN202339697U CN202339697U CN2011204385062U CN201120438506U CN202339697U CN 202339697 U CN202339697 U CN 202339697U CN 2011204385062 U CN2011204385062 U CN 2011204385062U CN 201120438506 U CN201120438506 U CN 201120438506U CN 202339697 U CN202339697 U CN 202339697U
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- color white
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Abstract
The utility model discloses a device for adjusting the color white balance of display equipment. The device comprises a remote controller for wirelessly sending a sampling or adjustment instruction, a sampling module for acquiring color information of the display equipment, a main control module for driving the sampling module according to the instruction of the remote controller and sending a corresponding color white balance adjustment instruction according to the color information acquired by the sampling module, and a signal conversion module for receiving the color white balance adjustment instruction of the main control module, converting the color white balance adjustment instruction into a format which can be identified by the display equipment and sending the color white balance adjustment instruction to the display equipment. The device automatically and objectively acquires the color information output by a screen of the display equipment through a color sensor, then automatically processes the color information and sends the adjustment instruction to the display equipment, so that the color white balance of the display equipment can be adjusted conveniently and quickly.
Description
Technical field
The utility model relates to a kind of detection and calibrating installation of display device, relates in particular to a kind of device that is used to adjust display device color white balance.
Background technology
Because the difference that exists on difference on the circuit and the LCDs monomer can cause the color demonstration of every display device inconsistent, therefore need adjust to standard value before use.Especially when being spliced into screen wall with a plurality of display devices, the aberration problem of different displays is particularly evident, even the same situation of mosaic also can appear in sprite.
In addition because the decay of signal wire, and the error of matrix allocation device, so after the screen wall splicing is accomplished, also need the white balance of screen be adjusted to consistent state.
What technology adopted in the past is after screen splicing is accomplished, and splicing personnel naked eyes carry out subjective judgement, adjusts the white balance of display device through the adjustment plant data that uses a teleswitch.But the whole manual adjustment of installation personnel rely on the eyes subjective judgement, and error is very big.And the remote control receiver window of display that is used for the mosaic screen curtain wall is at the back, so generally need two people cooperate completion, workload is big and the adjustment precision is not high, wastes time and energy.
The utility model content
The utility model provides a kind of color of using sensor to judge display device automatically, brightness, in certain error range, realizes the self-adjusting device of white balance.
A kind of device that is used to adjust display device color white balance comprises:
Telepilot is used for the instruction of wireless transmission sampling or adjustment;
Sampling module is used to gather the colouring information of described display device;
Main control module is used for instruction based on described remote controller and drives described sampling module and send corresponding color white balance adjustment instruction based on the colouring information of described sampling module collection;
Signal conversion module is used to receive the color white balance adjustment instruction of described main control module, converts the discernible form of described display device then to and is sent to described display device.
As preferably, adopt wireless telecommunications between described signal conversion module and the main control module.Adopt wired mode to be connected between generalized case sampling module and the main control module.
Described sampling module is at least two color sensors, all inserts main control module, has housing as preferred described color sensor, and described surface of shell is provided with sucker, is convenient to be adsorbed on the display device surface.
The described display device of the utility model is existing all kinds of picture output device, like display etc., generally has level and smooth surface, and especially during vertically-arranged, the color sensor that has sucker more is prone to absorption and fixing.
Described main control module comprises first central controller, first wireless transmission circuit and the power supply that are connected with first central controller respectively; Wherein said sampling module inserts described first central controller, first wireless transmission circuit respectively with described telepilot and signal conversion module wireless telecommunications.
Described signal conversion module comprises second central controller, second wireless transmission circuit and the power supply that are connected with second central controller respectively, wherein said second wireless transmission circuit respectively with described first wireless transmission circuit and display device wireless telecommunications.
First central controller and second central controller can adopt existing single-chip microcomputer, and first wireless transmission circuit and second wireless transmission circuit can adopt existing wireless transceiver circuit or chip.
As preferably, described signal conversion module has housing, and the surface of shell of signal conversion module is provided with sucker, is convenient to be adsorbed on the display device surface.Circuit part in the signal conversion module is installed in the housing, will keep necessary lead-in wire certainly.
As preferably, described main control module has housing, and the surface of shell of main control module is provided with sucker, is convenient to be adsorbed on the display device surface.Circuit part in the main control module is installed in the housing, will keep necessary lead-in wire certainly.
The circuit part of sampling module, signal conversion module, main control module is installed in the housing that has sucker separately; Can be adsorbed on front, the back side of display device as required; Be convenient to install and use; The quantity of sucker and specification are not strict with in addition, guarantee the absorption that corresponding module can be firm at least.
The operator utilizes the instruction of sampling of telepilot wireless transmission or adjustment in the utility model device; Main control module drives the colouring information that sampling module is gathered display device according to the instruction of telepilot during sampling; Main control module drives the colouring information that sampling module is gathered display device according to the instruction of telepilot during adjustment; Then compare with the colouring information of standard; Send concrete color white balance adjustment instruction according to predetermined adjustment strategy again, signal conversion module receives the color white balance adjustment instruction of main control module, converts the discernible form of display device then to and is sent to display device.
The utility model employing color sensor automatically, is objectively gathered the colouring information that display device is exported on screen, then handle automatically and send adjustment to display device and instruct, and can conveniently adjust the color white balance of display device.
Description of drawings
Fig. 1 is used to adjust the structured flowchart of the device of display device color white balance for the utility model is a kind of;
Color matching function when Fig. 2 converts the XYZ colorimeter system into for the colouring information with the RGB chrominance space, the X among the figure
10(λ), Y
10(λ), Z
10(λ) be color matching function;
Fig. 3 concerns synoptic diagram when converting the colouring information of XYZ colorimeter system into metric system lightness.
Embodiment
Referring to Fig. 1, display device is example with the display, and a kind of device that is used to adjust display device color white balance of present embodiment comprises:
A) telepilot is used for the instruction of wireless transmission sampling or adjustment.
B) sampling module is used to gather the colouring information of display device; Sampling module is two color sensors, and one is used to gather standard highlight color information, and another is used for the low bright colouring information of collection standard, and color sensor has housing, and surface of shell is provided with sucker, is convenient to be adsorbed on the display device surface.
Color sensor uses color sensor TCS3200 able to programme in the present embodiment; It can convert light signal into electric signal; Configurable silicon photoelectric diode and current frequency converter are integrated on the single cmos circuit, simultaneously also integrated three kinds of light filters of RGB (RGB) on one chip.The output signal of color sensor is a digital quantity, can drive the TTL or the input of CMOS logic of standard, therefore can directly link to each other with main control module, no longer needs the A/D change-over circuit.
When incident light projects on the color sensor, through the various combination of photodiode control pin, can select different filter, promptly select R, G, B, one of them path of W; Through the square wave (dutycycle is 50%) of excess current output different frequency behind the frequency converter, the square wave of various colors and light intensity correspondence different frequency; Can also select different output-scale-factors through output calibration control pin, reference frequency output is adjusted, to adapt to different demands, present embodiment uses 2% output.
C) main control module is used for driving sampling module and sending corresponding color white balance adjustment instruction based on the colouring information of sampling module collection based on the instruction of remote controller;
Main control module comprises first central controller (Chip Microcomputer A t89C52), first wireless transmission circuit and the power supply that are connected with first central controller respectively; Wherein two color sensors all adopt wired mode to insert first central controller, first wireless transmission circuit respectively with telepilot and signal conversion module wireless telecommunications.
Main control module has housing, and the surface of shell of main control module is provided with sucker, is convenient to be adsorbed on the display device surface.
D) signal conversion module is used to receive the color white balance adjustment instruction of main control module, converts the discernible form of display device then to and is sent to display device.Signal conversion module comprises second central controller (Chip Microcomputer A t89C52), second wireless transmission circuit and the power supply that are connected with second central controller respectively, wherein second wireless transmission circuit respectively with first wireless transmission circuit and the communication of display device line.
Signal conversion module has housing, and the surface of shell of signal conversion module is provided with sucker, is convenient to be adsorbed on the display device surface.
First wireless transmission circuit of communication and second wireless transmission circuit all adopt wireless transmit receiver module (PTR2000RF) each other; This module is used the nRF401UHF radio transmitting and receiving chip; Sampling FSK modulation-demodulation technique, antennal interface is designed to the differential antennae of PCB form.Has small-sized low consumption, the advantage that antijamming capability is strong.
When utilizing the utility model device adjustment display device color white balance; Utilize sucker to be adsorbed on the screen surface (front) of standard display device or display device two color sensors; Utilize sucker that main control module also is adsorbed on the screen surface of standard display device or display device, utilize sucker signal conversion module to be adsorbed on the back side of display device to be adjusted.
Adjustment process is following:
(1) adopt telepilot to send the sampling instruction to main control module; Main control module drives and utilizes two color sensors to gather standard highlight color information and the low bright colouring information of standard that standard display device is exported respectively; The fundamental purpose of step (1) is to gather normal data, for reference.
(2) adopt telepilot to send the adjustment instruction to main control module; With round-robin mode executable operations successively (a) and operation (b); Highlight color information and low bright colouring information until display device is exported are consistent with standard highlight color information and the low bright colouring information of standard respectively:
A) utilize color sensor to gather highlight color information and low bright colouring information that display device to be adjusted is exported respectively; And compare with standard highlight color information and the low bright colouring information of standard respectively; And if the error between the normal data of step (1) thinks then that in tolerance interval display device need not adjustment (promptly need not redo (b)); And if the error between the normal data of step (1) is not in tolerance interval; Then adjust, calculate color white balance adjustment instruction during adjustment earlier;
B) become the discernible form of display device to be sent to display device color white balance adjustment instruction transformation, display device is adjusted the color white balance automatically according to discernible color white balance adjustment instruction.
Synthetic operation (a) and operation (b), step (2) are repeatedly processes of circulation adjustment, below this process that repeatedly circulates adjustment are elaborated:
In the time of relatively; At first confirm the error of permission; The present invention adopts metric system lightness to carry out the setting of error tolerance interval; Because the information of color sensor collection is the RGB color space information that comprises red, green, blue and monochrome information, and the conversion method between RGB color space information and the metric system lightness can be utilized prior art, be converted into the CIE1931-XYZ colorimeter system like the value of red, green, blue and brightness.Color matching function when converting the XYZ colorimeter system into can be referring to Fig. 2.And then the XYZ colorimeter system is converted into the metric system lightness that CIE (International Commission on Illumination) releases, i.e. the even color space L* of CIE1976, u*, v*, the relation when converting the colouring information of XYZ colorimeter system into metric system lightness can be referring to Fig. 3.Physical relationship is following:
In the formula:
Corresponding:
After colouring information converted metric system lightness into, chromaticity coordinates became two parameter associations by four parameter associations.The error tolerance interval adopts metric system lightness to represent Gao Liang in the present embodiment: U ± 6, V ± 6, L ± 20; Low bright: U ± 6, V ± 6, L ± 5; Also can error tolerance interval under the metric system lightness be converted into the error tolerance interval of RGB color space medium blue, green, red, brightness number through above transformational relation.
After the error range of confirming to allow; Adjustment process is divided into two stages; The adjustment and the adjustment that intersects separately need to prove that independent adjustment and intersection adjustment have included the adjustment of highlight color information with low bright colouring information, in any once adjustment in any stage; All be to have experienced single job (a) and operation (b), collection, comparison, the color white balance of promptly going through information are adjusted the adjustment of the color white balance of confirming of instruction and transmission and display device.
Transfer it to RS232 form after wherein color white balance adjustment instruction is confirmed, send to signal conversion module through wireless mode; Changing into infrared code, be sent to display device after signal conversion module reception instruction and the demodulation, display device is adjusted the color white balance automatically according to instruction.
Adjustment comprises at least three cyclic processes (adopting four cyclic processes in the present embodiment) separately; Ordering and at every turn select one arbitrarily in indigo plant (blue channel numerical value) in each cyclic process in colouring information that display device is exported (general reference highlight color information and low bright colouring information), green (green channel numerical value), red (red channel numerical value), these four numerical value of brightness; Adjust according to the middle corresponding difference of itself and Standard Colors information (accurate highlight color information of corresponding index and standard are hanged down bright colouring information), error is in the preset range.
The highlight color information of being exported with display device is example, and low bright colouring information adopts identical method of adjustment, and the object of reference is different when only being adjustment.For example at first select the numerical value of the blue Color Channel in the highlight color information that display device exports, according to standard highlight color information in the difference of numerical value of blue Color Channel adjust, both are in the preset range error.Adjust green, red, brightness colouring information more successively.Certainly when the numerical value of adjustment red color passage, might cause the numerical value of blue Color Channel to depart from the numerical value of the blue Color Channel in the standard highlight color information again.
In each cyclic process in the preferred adjustment separately; Orderings blue, green, red, these four numerical value of brightness have nothing in common with each other; For example the first time circulation time adjust successively according to order blue, green, red, brightness, and for the second time circulation time is adjusted according to the order of red, green, blue, brightness successively, circulation time is adjusted according to order green, red, blue, brightness successively for the third time; The 4th time circulation time is adjusted according to brightness, green, blue, red order successively
Accomplish and to intersect adjustment after the adjustment separately again, no longer consider brightness when intersecting adjustment, only adjust to blue, green, red three numerical value, it is following that intersection is adjusted detailed process:
(I) the red channel numerical value in the red channel numerical value in the colouring information exported of contrast display device (general reference highlight color information and low bright colouring information) and the Standard Colors information (accurate highlight color information of corresponding index and standard are hanged down bright colouring information); Adjust according to difference; And the step-length of each adjustment is 1 (numerical value add 1 or subtract 1), and adjusts at most six times; Contrast value corresponding in indigo plant, green, red numerical value and the Standard Colors information in the colouring information that display device exports after each adjustment respectively; If all being in, error then stops adjustment in the preset range; I.e. completion intersects to be adjusted, otherwise continues adjustment, execution in step (II) after adjusting six times;
(II) regulate green channel numerical value according to the regulative mode of red channel numerical value; But and adjust once at most; Contrast value corresponding in indigo plant, green, red numerical value and the Standard Colors information in the colouring information that display device exports after the adjustment respectively; If all being in, error then stops adjustment in the preset range; Promptly accomplish to intersect and adjust, otherwise execution in step (III);
(III) regulate blue channel numerical value according to the regulative mode of red channel numerical value, but and adjust at most twice; Contrast value corresponding in indigo plant, green, red numerical value and the Standard Colors information in the colouring information that display device exports after each adjustment respectively, then stop adjustment in the preset range, promptly accomplish to intersect and adjust, otherwise return step (I) if error all is in.
Visible in the intersection adjustment process; The ratio of the adjustment limit step-length of three kinds of Color Channel numerical value of red, green, blue is 6: 1: 2; Be that red channel numerical value is adjusted six times at most in each step (I) to the circulation of step (III), green channel numerical value, adjustment is once at most; Blue channel numerical value is adjusted at most twice.Adjust until accomplishing to intersect.
The effect evaluation and test
Utilize the adjustment result of present embodiment method to screen wall (a standard display screen, five display screens to be adjusted), five equal reference standard display screens of display screen to be adjusted are adjusted, adjustment required time and adjustment back result such as following table:
Utilize the present embodiment method display screen to be carried out the effect comparison such as the following table of adjustment of color white balance and existing manual adjustment:
| Project | Prior art | The utility model | Effect |
| The adjustment precision | With the human eye subjective judgement | The color sensor collection is judged | Degree of accuracy realizes the lifting of matter |
| Need manpower | 2 |
0 people (adjustment automatically) | Reduce by 100% |
| The adjustment time | 15min/set | 1min/set | Reduce by 93% |
| Remote control position | Remote control behind | Positive remote control | Operation readiness |
| Method of adjustment | Manual adjustment | Automatically adjustment |
Can find out in the table that the utility model is not only saved manpower but also improved efficient, and the adjustment result is more objective and accurate.
Claims (6)
1. a device that is used to adjust display device color white balance is characterized in that, comprising:
Telepilot is used for the instruction of wireless transmission sampling or adjustment;
Sampling module is used to gather the colouring information of described display device;
Main control module is used for instruction based on described remote controller and drives described sampling module and send corresponding color white balance adjustment instruction based on the colouring information of described sampling module collection;
Signal conversion module is used to receive the color white balance adjustment instruction of described main control module, converts the discernible form of described display device then to and is sent to described display device.
2. the device that is used to adjust display device color white balance as claimed in claim 1 is characterized in that, adopts wireless telecommunications between described signal conversion module and the main control module.
3. the device that is used to adjust display device color white balance as claimed in claim 2 is characterized in that, described sampling module is at least two color sensors, all inserts main control module.
4. the device that is used to adjust display device color white balance as claimed in claim 3 is characterized in that described color sensor has housing, and described surface of shell is provided with sucker.
5. the device that is used to adjust display device color white balance as claimed in claim 4 is characterized in that described signal conversion module has housing, and the surface of shell of signal conversion module is provided with sucker.
6. the device that is used to adjust display device color white balance as claimed in claim 5 is characterized in that described main control module has housing, and the surface of shell of main control module is provided with sucker.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011204385062U CN202339697U (en) | 2011-11-08 | 2011-11-08 | Device for adjusting color white balance of display equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204385062U CN202339697U (en) | 2011-11-08 | 2011-11-08 | Device for adjusting color white balance of display equipment |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105405413A (en) * | 2015-12-29 | 2016-03-16 | Tcl新技术（惠州）有限公司 | Automatic LCD splicing adjustment type white balance realizing method and system |
| CN106710571A (en) * | 2017-03-23 | 2017-05-24 | 海信集团有限公司 | Display control method, display controller and splicing display system |
| CN107358933A (en) * | 2017-09-15 | 2017-11-17 | 深圳市华星光电技术有限公司 | The white balance method and device of liquid crystal display panel |
| CN112150955A (en) * | 2019-06-27 | 2020-12-29 | 钰纬科技开发股份有限公司 | Display correction system applied to endoscope and correction method thereof |
| CN112565728A (en) * | 2020-12-22 | 2021-03-26 | 京东方科技集团股份有限公司 | White balance adjusting method, system and device |
-
2011
- 2011-11-08 CN CN2011204385062U patent/CN202339697U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105405413A (en) * | 2015-12-29 | 2016-03-16 | Tcl新技术（惠州）有限公司 | Automatic LCD splicing adjustment type white balance realizing method and system |
| CN105405413B (en) * | 2015-12-29 | 2018-10-26 | Tcl新技术（惠州）有限公司 | A kind of white balance realization method and system of adjust automatically LCD splicings |
| CN106710571A (en) * | 2017-03-23 | 2017-05-24 | 海信集团有限公司 | Display control method, display controller and splicing display system |
| CN107358933A (en) * | 2017-09-15 | 2017-11-17 | 深圳市华星光电技术有限公司 | The white balance method and device of liquid crystal display panel |
| CN107358933B (en) * | 2017-09-15 | 2019-10-11 | 深圳市华星光电技术有限公司 | The white balance method and device of liquid crystal display panel |
| CN112150955A (en) * | 2019-06-27 | 2020-12-29 | 钰纬科技开发股份有限公司 | Display correction system applied to endoscope and correction method thereof |
| CN112565728A (en) * | 2020-12-22 | 2021-03-26 | 京东方科技集团股份有限公司 | White balance adjusting method, system and device |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120718 Termination date: 20151108 |
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| EXPY | Termination of patent right or utility model |