CN101193318A - Automatic adjusting system and its method for LCD TV white balance - Google Patents
Automatic adjusting system and its method for LCD TV white balance Download PDFInfo
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- CN101193318A CN101193318A CNA200710074677XA CN200710074677A CN101193318A CN 101193318 A CN101193318 A CN 101193318A CN A200710074677X A CNA200710074677X A CN A200710074677XA CN 200710074677 A CN200710074677 A CN 200710074677A CN 101193318 A CN101193318 A CN 101193318A
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Abstract
The invention discloses a system for automatically adjusting the white balance of an LCD TV and a method thereof, which includes a microcomputer system with a pair of RS232 serial ports, an LCD color frequency instrument connected with the microcomputer system through the RS232 serial ports and a camera connected with the LCD color frequency instrument to sample brightness value and chromatic value of an LCD TV screen. The LCD color frequency instrument is used for converting the brightness value and chromatic value collected by the camera into accurate values. The microcomputer system is connected with a CPU of the LCD TV through the RS232 serial ports to transmit the data value written into the on-line LCD TV. Compared with the prior art, the invention improves the adjusting speed and accuracy of the white balance of the on-line LCD TV, promotes the production efficiency, reduces the cost, and reduces the labor intensity of the on-line workers at the same time with a strong practicality.
Description
[technical field]
The present invention relates to the LCD system for TV set debugging field of online production, particularly a kind of LCD TV white balance automatic adjustment system and method thereof.
[background technology]
In the machine system debug process of LCD TV production line, need debug the white balance circuit of the screen of LCD TV, by to the parameter of the white balance of the LCD television set value of establishing again, make the LCD TV can reach predetermined colour temperature, allow the user during televiewing, the whole image color is normal, not colour cast.In the white balance debugging process of existing LCD TV on production line, generally all be in advance by one or several TVs, read the value of one group of white balance, through revising, as a kind of standard value, and then each LCD TV is set by this standard value of artificial contrast, yet this mode is not considered the situation that each LCD television set shields separately, thereby also inaccuracy of the value that white balance is set, also this deviation of Chang Yinwei, cause the color colour cast of LCD TV, color temperature value is warm or colder partially, influences image effect.In addition, debugging speed is also quite slow during manual debugging LCD white balance, need enter factory mode at every turn and just can be provided with, even the most skilled workman also needs 20-30 second, just can finish the setting of a TV, and efficient is low.
[summary of the invention]
For addressing the above problem, main purpose of the present invention is to provide a kind of LCD TV white balance automatic adjustment system and method thereof.
For achieving the above object, the technical scheme of this creation is: a kind of LCD TV white balance automatic adjustment system, the LCD look that comprises microsystem with two RS232 serial ports, is connected with microsystem by the RS232 serial ports is instrument and connection LCD look frequency instrument frequently, to be used for the brightness of LCD TV screen and the camera of chromatic value of sampling; Described LCD look frequently instrument in order to pass the brightness of coming after the brightness of camera collection LCD TV screen and the colourity, the value of colourity converts accurate component value to; Described microsystem is connected with the CPU of LCD television set by the RS232 serial ports, is used to send the data value that writes online LCD television set.
A kind of LCD TV white balance automatic adjusting method comprises the steps:
A. provide one to have the microsystem of two RS232 serial ports, be inserted in the LCD television set serial interface by the RS232 Serial Port Line, send order and make LCD television set initialization relevant parameter, the parameter command that send to show the white balance primary colours by microsystem is to the LCD television set then, and the LCD television set shows the color of corresponding primary colours;
B., camera is provided, obtains the brightness and the chromatic value of LCD TV screen by the induction sampling;
C., LCD look instrument frequently is provided, receives the data that camera is sent, the process treatment conversion becomes the value of component, sends to microsystem by the RS232 serial ports;
D. microsystem obtains correction value by white balance debugging software after receiving the LCD look component data that instrument sends over frequently, correction value is sent among the CPU of LCD television set by RS232; The CPU of LCD television set receives after the data, and the LCD TV white balance is provided with software execution white balance and adjusts automatically, finishes the debugging of LCD television set white balance.
With respect to prior art, the present invention has improved the debugging speed and the accuracy of online LCD TV white balance, has improved production efficiency, has reduced cost, has also alleviated online working strength of workers simultaneously, and is practical.
[description of drawings]
Fig. 1 is a LCD TV white balance automatic adjustment system functional-block diagram of the present invention.
Fig. 2 is the flow chart of LCD television set white balance debugging software of the present invention.
Fig. 3 is provided with the flow chart of software for LCD TV white balance of the present invention.
[embodiment]
See also shown in Figure 1, LCD TV white balance automatic adjustment system of the present invention, the LCD look that comprises microsystem with two RS232 serial ports, is connected with microsystem by Serial Port Line is instrument and connect LCD look instrument frequently frequently, to be used for the brightness of LCD TV screen and the camera of chromatic value of sampling.Described microsystem is connected with the CPU of LCD television set by the RS232 serial ports, is used to send the data value that writes online LCD television set.Described LCD look frequently instrument in order to pass the brightness of coming after the brightness of camera collection LCD TV screen and the colourity, the value of colourity converts more accurate component value to.
The LCD television set is provided with the LCD TV white balance software is set, be used to receive the numerical value that microsystem sends, and a data value that receives write in the register of video processor, the debugging mode of control television set white balance carries out the LCD TV white balance and adjusts automatically.Described microsystem is provided with LCD television set white balance debugging software, is used to receive the LCD look data value of sending of instrument frequently, analyzes then, calculates, and sends to the LCD television set by the RS232 serial ports again.
On LCD television set production line, when the LCD television set puts in place, the RS232 Serial Port Line of microsystem is inserted in the LCD television set serial interface, microsystem sends order at once, make LCD television set initialization relevant parameter, the initial value of white balance related register data promptly is set; The parameter command that send to show the white balance primary colours by microsystem is to the LCD television set then, and the LCD television set shows the color of corresponding primary colours; Camera is by induction, and the value that sampling obtains measuring sends LCD look instrument frequently to; LCD look instrument frequently receives the data that camera is sent, and the process treatment conversion becomes the value of component, sends to microsystem by the RS232 serial ports again; Microsystem obtains correction value by white balance debugging software in the microsystem after receiving the LCD look component data that instrument sends over frequently, and the RS232 that links to each other with the LCD television set by microsystem sends to correction value among the CPU of LCD television set again; The CPU of LCD television set receives after the data, and the LCD TV is provided with software and carries out white balance and adjust automatically, by the I2C bus value of white balance related register is upgraded, thereby is finished the debugging of LCD television set white balance quickly and accurately.
See also Fig. 1, shown in Figure 2, work as microsystem, the LCD look is instrument frequently, after the hardware of LCD television set to be measured is communicated with, microsystem is sent the order that is provided with of initialization TV, send then and allow the LCD television set enter the order of red primary colours, camera obtains one group of data through sensitization, send to LCD look instrument frequently, after the instrument process conversion frequently of LCD look, data are sent to microsystem, microsystem receives the LCD look test data of instrument frequently by the RS232 interface, after the microcomputer correcting process, correction value is sent to the CPU of LCD TV, go to be provided with the value of register by the CPU of LCD TV, and then set gradually green, blue two kinds of primary colours are up to end is set.
See also shown in Figure 3ly, the CPU of LCD television set to be measured receives the order of the initialization register that microsystem sends, and receives after the order, by the I2C bus, writes in the corresponding register, and then waits for that microsystem gives an order; When receiving the order that the red primary colours of white balance are set, judge whether to be red primary colours, if, then register is set by the I2C bus, it is red that LCD is shown, camera just can collect current brightness, the value of colourity, send to LCD look instrument frequently, frequently after instrument is handled through the LCD look, send to microsystem again, microsystem receives data, handle by analysis and obtain correction value, send to the CPU of LCD TV to be measured again, these group data that CPU receives are exactly to give the white balance value that red primary colours are provided with.Circulation so successively is provided with fully up to a green, blue primary color, thereby finishes the debugging of LCD television set white balance.
Most preferred embodiment described above only is that the present invention is set forth and illustrates, but is not limited to disclosed any concrete form, and it is possible carrying out many modifications and variations.
Claims (7)
1. LCD TV white balance automatic adjustment system, it is characterized in that: the LCD look that comprise microsystem with two RS232 serial ports, is connected by the RS232 serial ports with microsystem is instrument and connection LCD look frequency instrument frequently, to be used for the brightness of LCD TV screen and the camera of chromatic value of sampling.
2. LCD TV white balance automatic adjustment system as claimed in claim 1 is characterized in that: described LCD look frequently instrument in order to pass the brightness of coming after the brightness of camera collection LCD TV screen and the colourity, the value of colourity converts accurate component value to.
3. LCD TV white balance automatic adjustment system as claimed in claim 1 is characterized in that: described microsystem is connected with the CPU of LCD television set by the RS232 serial ports, is used to send the data value that writes online LCD television set.
4. LCD TV white balance automatic adjustment system as claimed in claim 1, it is characterized in that: described microsystem is provided with LCD television set white balance debugging software, be used to receive the LCD look data value of sending of instrument frequently, analyze, calculate, send to the LCD television set by the RS232 serial ports then.
5. LCD TV white balance automatic adjustment system as claimed in claim 1, it is characterized in that: the LCD television set is provided with the LCD TV white balance software is set, be used to receive the numerical value that microsystem sends, and a data value that receives writes in the register of television video processor, the debugging mode of control television set white balance carries out the LCD TV white balance and adjusts automatically.
6. a LCD TV white balance automatic adjusting method is characterized in that, comprises the steps:
A. provide one to have the microsystem of two RS232 serial ports, be inserted in the LCD television set serial interface by the RS232 Serial Port Line, send order and make LCD television set initialization relevant parameter, the parameter command that send to show the white balance primary colours by microsystem is to the LCD television set then, and the LCD television set shows the color of corresponding primary colours;
B., camera is provided, obtains the brightness and the chromatic value of LCD TV screen by the induction sampling;
C., LCD look instrument frequently is provided, receives the data that camera is sent, the process treatment conversion becomes the value of component, sends to microsystem by the RS232 serial ports;
D. microsystem obtains correction value by white balance debugging software after receiving the LCD look component data that instrument sends over frequently, correction value is sent among the CPU of LCD television set by RS232; The CPU of LCD television set receives after the data, and the LCD TV white balance is provided with software execution white balance and adjusts automatically, finishes the debugging of LCD television set white balance.
7. as claims 6 described a kind of LCD TV white balance automatic adjusting method, it is characterized in that described LCD television set initialization relevant parameter is the initial value that LCD television set white balance related register data are set.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710074677XA CN101193318B (en) | 2007-05-31 | 2007-05-31 | Automatic adjusting system and its method for LCD TV white balance |
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| CN200710074677XA CN101193318B (en) | 2007-05-31 | 2007-05-31 | Automatic adjusting system and its method for LCD TV white balance |
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| CN101193318A true CN101193318A (en) | 2008-06-04 |
| CN101193318B CN101193318B (en) | 2010-12-22 |
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| CN200710074677XA Expired - Fee Related CN101193318B (en) | 2007-05-31 | 2007-05-31 | Automatic adjusting system and its method for LCD TV white balance |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101840684A (en) * | 2010-03-26 | 2010-09-22 | 青岛海信电器股份有限公司 | Gamma-debugged primary color data output method, terminal and system of liquid crystal display terminal |
| CN103106856A (en) * | 2011-11-14 | 2013-05-15 | 沈阳火炬北泰数码科技有限责任公司 | Debugging system of liquid crystal displayer and debugging method of the liquid crystal displayer |
| CN103425441A (en) * | 2012-05-17 | 2013-12-04 | 中国长城计算机深圳股份有限公司 | Computer and display debug system thereof |
| CN105208459A (en) * | 2015-09-09 | 2015-12-30 | 余芳 | Method for adjusting color reduction capability of television set through set top box |
| CN105611263A (en) * | 2015-12-22 | 2016-05-25 | 广州视源电子科技股份有限公司 | White balance on-line adjusting method and system |
| CN105869582A (en) * | 2015-01-20 | 2016-08-17 | 旭曜科技股份有限公司 | LCD white balance real-time switching selection optimization method and system |
| CN109545160A (en) * | 2018-12-14 | 2019-03-29 | 浙江大学 | Using the device and method of liquid crystal display control brightness of image |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6437833B1 (en) * | 1998-11-18 | 2002-08-20 | Kabushiki Kaisha Toshiba | Automatic white balance adjusting circuit in color image display |
| JP3697997B2 (en) * | 2000-02-18 | 2005-09-21 | ソニー株式会社 | Image display apparatus and gradation correction data creation method |
| CN100388348C (en) * | 2005-04-08 | 2008-05-14 | 浙江大学 | Automatic measurement and correction method and system for LCD GAMMA curve and color temperature |
| CN100440983C (en) * | 2005-10-13 | 2008-12-03 | 浙江大学 | Constitiution method and device used for flat plate TV light and colour automatic regulating and testing system |
-
2007
- 2007-05-31 CN CN200710074677XA patent/CN101193318B/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101840684A (en) * | 2010-03-26 | 2010-09-22 | 青岛海信电器股份有限公司 | Gamma-debugged primary color data output method, terminal and system of liquid crystal display terminal |
| CN103106856A (en) * | 2011-11-14 | 2013-05-15 | 沈阳火炬北泰数码科技有限责任公司 | Debugging system of liquid crystal displayer and debugging method of the liquid crystal displayer |
| CN103425441A (en) * | 2012-05-17 | 2013-12-04 | 中国长城计算机深圳股份有限公司 | Computer and display debug system thereof |
| CN105869582A (en) * | 2015-01-20 | 2016-08-17 | 旭曜科技股份有限公司 | LCD white balance real-time switching selection optimization method and system |
| CN105869582B (en) * | 2015-01-20 | 2018-06-12 | 敦泰电子股份有限公司 | LCD white balances switch the optimization method and system of selection in real time |
| CN105208459A (en) * | 2015-09-09 | 2015-12-30 | 余芳 | Method for adjusting color reduction capability of television set through set top box |
| CN105208459B (en) * | 2015-09-09 | 2019-05-21 | 余芳 | The method of the color reducing power of television set is adjusted by set-top box |
| CN105611263A (en) * | 2015-12-22 | 2016-05-25 | 广州视源电子科技股份有限公司 | White balance on-line adjusting method and system |
| CN109545160A (en) * | 2018-12-14 | 2019-03-29 | 浙江大学 | Using the device and method of liquid crystal display control brightness of image |
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| Publication number | Publication date |
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| CN101193318B (en) | 2010-12-22 |
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