CN116170568A - Color temperature calibration method of projection equipment - Google Patents
Color temperature calibration method of projection equipment Download PDFInfo
- Publication number
- CN116170568A CN116170568A CN202310150029.7A CN202310150029A CN116170568A CN 116170568 A CN116170568 A CN 116170568A CN 202310150029 A CN202310150029 A CN 202310150029A CN 116170568 A CN116170568 A CN 116170568A
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- color temperature
- color
- projection equipment
- projection
- projection device
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3179—Video signal processing therefor
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3179—Video signal processing therefor
- H04N9/3182—Colour adjustment, e.g. white balance, shading or gamut
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Processing Of Color Television Signals (AREA)
Abstract
The invention discloses a color temperature calibration method of projection equipment, relates to the technical field of projection equipment, and aims to solve the technical problem of color temperature calibration. The key points of the technical scheme are as follows: the method comprises the following steps: 1) The projection device outputs a white picture; 2) Measuring the color temperature by a color illuminometer; 3) Reading color temperature data; 4) Comparing the standard values; 5) Calculating the power ratio of each color; 6) Adjusting the power of each color of the projection equipment; 7) Save data and return to step 2). The invention aims to provide a color temperature calibration method of projection equipment.
Description
Technical Field
The invention relates to the technical field of projection equipment, in particular to a color temperature calibration method of projection equipment.
Background
In projection displays, color temperature calibration is typically performed for the color formed by the light emitted by the light emitting device, where the color temperature represents the color component of the light. It is currently practiced to calibrate the corresponding light emitting device at a preset duty ratio by presetting the duty ratio of each color light emitting device, presetting the time of lighting and turning off.
Usually, the color temperature difference of a display picture of projection equipment when leaving the factory can reach more than 1000K, the color temperature consistency of the projection equipment with the same model is poor, namely, the color cold and warm performance is inconsistent, and the user experience is poor.
Therefore, a new solution is needed to solve the above technical problems.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide a color temperature calibration method of projection equipment.
The technical aim of the invention is realized by the following technical scheme: a color temperature calibration method of a projection device, comprising the steps of:
1) The projection device outputs a white picture;
2) Measuring the color temperature by a color illuminometer;
3) Reading color temperature data;
4) Comparing the standard values;
5) If the color temperature data is out of the standard range, calculating the power ratio of each color;
6) Adjusting the power of each color of the projection equipment;
7) Save data and return to step 2).
Through adopting above-mentioned technical scheme, through reading the white picture of projection equipment output and carrying out colour temperature data to constantly adjust the colour temperature, can be quick effectual adjust projection equipment's colour temperature, make its colour temperature can accord with the standard, promote user experience.
The invention is further provided with: in step 2), the color illuminometer employs a konikamantadine CL200.
The invention is further provided with: the color illuminometer is connected to the projection equipment through a communication data line by arranging embedded software in the projection equipment.
The invention is further provided with: the upper computer software is developed through a computer, and the color illuminometer is connected to the computer through a communication data line.
The invention is further provided with: the communication data line adopts an RS232 interface or a USB interface.
The invention is further provided with: in step 7), the data is saved by the nonvolatile memory.
The invention has the following beneficial effects: the color temperature data of the white picture output by the projection equipment is read, the color temperature is continuously adjusted, the color temperature of the projection equipment can be quickly and effectively adjusted, the color temperature of the projection equipment can meet the standard, and the user experience is improved.
Drawings
Fig. 1 is a flow chart of the present embodiment.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Wherein like parts are designated by like reference numerals. It should be noted that the words "front", "back", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
As shown in the figure, a color temperature calibration method of a projection device includes the following steps:
1) The projection device outputs a white picture: the projection device outputs a white picture on the curtain;
2) Color illuminometer measures color temperature: measuring a white picture on a curtain through a color illuminometer;
3) Reading color temperature data: reading the color temperature data measured in the step 2);
4) And (3) standard value comparison: comparing the color temperature data with the standard value, and if the color temperature data is in the standard range, exiting and ending;
5) Calculating the power ratio of each color: in the step 4), if the color temperature data is out of the standard range, calculating the power ratio of each color;
6) Adjusting the power of each color of the projection equipment: adjusting the color temperature of the projection equipment by adjusting the power of each color;
7) Save data and return to step 2).
The color temperature data of the white picture output by the projection equipment is read, the color temperature is continuously adjusted, the color temperature of the projection equipment can be quickly and effectively adjusted, the color temperature of the projection equipment can meet the standard, and the user experience is improved.
In step 2), the color illuminometer employs a Kenicamantadine CL200/CL200A/CL500 or the like.
The color illuminometer is connected to the projection equipment through a communication data line by arranging embedded software in the projection equipment, and color temperature calibration is carried out through the embedded software.
The communication data line adopts an RS232 interface or a USB interface.
In step 7), the data is saved by the nonvolatile memory.
Specific example 2:
unlike the specific example 1, the following are: the embedded software is replaced by the upper computer software developed through a computer, the color illuminometer is connected to the computer through a communication data line, and the color temperature calibration is carried out through the upper computer software.
And measuring color temperature data by using a color illuminometer, continuously adjusting the power proportion of each color light until the color temperature reaches target color temperature data, and storing the proportion data of each color light power at the moment, so that the color temperature of the projection equipment can meet the standard, and the user experience is improved.
The present invention is not limited by the specific embodiments, and modifications can be made to the embodiments without creative contribution by those skilled in the art after reading the present specification, but are protected by patent laws within the scope of claims of the present invention.
Claims (6)
1. A color temperature calibration method for a projection device, characterized by: the method comprises the following steps:
1) The projection device outputs a white picture;
2) Measuring the color temperature by a color illuminometer;
3) Reading color temperature data;
4) Comparing the standard values;
5) Calculating the power ratio of each color;
6) Adjusting the power of each color of the projection equipment;
7) Save data and return to step 2).
2. A method of calibrating a color temperature of a projection device according to claim 1, wherein: in step 2), the color illuminometer employs a konikamantadine CL200.
3. A method of calibrating a color temperature of a projection device according to claim 2, characterized in that: the color illuminometer is connected to the projection equipment through a communication data line by arranging embedded software in the projection equipment.
4. A method of calibrating a color temperature of a projection device according to claim 2, characterized in that: the upper computer software is developed through a computer, and the color illuminometer is connected to the computer through a communication data line.
5. A method of calibrating a color temperature of a projection device according to claim 3 or 4, characterized in that: the communication data line adopts an RS232 interface or a USB interface.
6. A method of calibrating a color temperature of a projection device according to claim 1, wherein: in step 7), the data is saved by the nonvolatile memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310150029.7A CN116170568A (en) | 2023-02-15 | 2023-02-15 | Color temperature calibration method of projection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310150029.7A CN116170568A (en) | 2023-02-15 | 2023-02-15 | Color temperature calibration method of projection equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116170568A true CN116170568A (en) | 2023-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310150029.7A Pending CN116170568A (en) | 2023-02-15 | 2023-02-15 | Color temperature calibration method of projection equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN116170568A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101644875A (en) * | 2009-03-04 | 2010-02-10 | 青岛海信电器股份有限公司 | Color temperature correction method and projection system using same |
| JP2013020093A (en) * | 2011-07-11 | 2013-01-31 | Canon Inc | Image projection device, color correction method and program |
| CN107221305A (en) * | 2017-06-19 | 2017-09-29 | 广东欧珀移动通信有限公司 | Color temperature adjusting method, device and its equipment based on screen intensity |
| CN110177263A (en) * | 2019-05-24 | 2019-08-27 | 峰米(北京)科技有限公司 | Calibration system and method for projector |
-
2023
- 2023-02-15 CN CN202310150029.7A patent/CN116170568A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101644875A (en) * | 2009-03-04 | 2010-02-10 | 青岛海信电器股份有限公司 | Color temperature correction method and projection system using same |
| JP2013020093A (en) * | 2011-07-11 | 2013-01-31 | Canon Inc | Image projection device, color correction method and program |
| CN107221305A (en) * | 2017-06-19 | 2017-09-29 | 广东欧珀移动通信有限公司 | Color temperature adjusting method, device and its equipment based on screen intensity |
| CN110177263A (en) * | 2019-05-24 | 2019-08-27 | 峰米(北京)科技有限公司 | Calibration system and method for projector |
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