CN113488000A - LCD-based mobile terminal display screen brightness and chrominance correction system - Google Patents
LCD-based mobile terminal display screen brightness and chrominance correction system Download PDFInfo
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- CN113488000A CN113488000A CN202110626133.XA CN202110626133A CN113488000A CN 113488000 A CN113488000 A CN 113488000A CN 202110626133 A CN202110626133 A CN 202110626133A CN 113488000 A CN113488000 A CN 113488000A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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Abstract
The invention discloses a mobile terminal display screen brightness and chrominance correction system based on an LCD (liquid crystal display), which comprises main control software, PC (personal computer) control software, a data collection module, a Sensor value adjustment module and other data units, wherein the main control software is used for controlling the main control software to be in a continuous or continuous mode; the main control software comprises a configuration management module, a brightness and chrominance adjustment module, a DLP control module and a UDP broadcast module. The invention can avoid the cost of timing manual maintenance, improve the visual display effect of the LCD display screen and solve the problems of display color uniformity and long-term operation consistency.
Description
Technical Field
The invention relates to the technical field of display screen brightness and chrominance correction, in particular to a mobile terminal display screen brightness and chrominance correction system based on an LCD.
Background
LCD is LCD, LCD's structure is to place the liquid crystal box in the middle of two parallel glass substrates, set up TFT on the infrabasal plate glass, set up color filter on the upper substrate glass, change the direction of rotation that comes control liquid crystal molecule through signal on the TFT and voltage, thereby reach whether every pixel point polarized light of control goes out and reach the display purpose, along with the rapid development and the wide application of digital video technique, people are more and more high to the requirement of video quality and form, traditional two-dimensional plane video has not satisfied people to the true and naturally reappeared demand of scene, consequently can provide the multi-viewpoint video technique of third dimension and interactive operation function and receive the attention of the industry more and more.
For a splicing system, the color correction problem is always one of the key problems, for an overall system, the color uniformity in each unit and the consistency among the units are related to the visual display presenting effect of the overall system, the color control problem is still a technical problem yet to be researched and solved in the practical application of the DLP display system of the novel LCD light source, and as the DLP display system of the LCD light source is distributed by a plurality of multicolor LCDs, the attenuation of the plurality of LCD light sources can not be controlled, and the color drift is influenced, the projection splicing system of the light sources faces the problems of displaying the color uniformity and the consistency in long-term operation, therefore, a mobile end display screen brightness and chromaticity correction system based on the LCDs is required to be provided to solve the problems.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a mobile terminal display screen brightness and chrominance correction system based on an LCD.
The invention provides a mobile terminal display screen brightness and chrominance correction system based on an LCD, which comprises main control software, PC control software, a data collection module, a Sensor value adjustment module and other data units, wherein the main control software is used for controlling the main control software;
the main control software comprises a configuration management module, a brightness and chrominance adjustment module, a DLP control module and a UDP broadcast module;
the PC control software is used for carrying out mode setting on the embedded software;
the data collection module is used for receiving the adjustment starting command, creating a data collection analysis thread, and judging whether adjustment is needed or not by regularly collecting and analyzing data;
the Sensor value adjusting module is used for adjusting a target Sensor value and comprises two steps of in-screen adjustment and inter-screen adjustment, and each unit acquires color data of the unit after receiving a command sent by the main unit;
the brightness and chrominance adjusting module is used for developing a brightness mode control function on the basis of a whole wall consistency algorithm to realize consistency control of the whole wall under various brightness levels, the whole wall brightness mode adjusting function can set the system to work under the brightness of any proportion, the brightness consistency of the whole wall is kept, and the corresponding brightness is selected according to actual needs;
the UDP broadcast module program is used for judging whether adjustment is needed or not by regularly collecting and analyzing data, broadcasting own data to other units through UDP broadcast, and receiving UDP broadcast data of other units at the same time.
Preferably, the PC control software is divided into three modes, namely real-time adjustment, single adjustment and no adjustment:
(1) and (3) real-time adjustment: the system detects the whole Sensor change ratio of the system at intervals (which can be set by control software, the default is 24 hours, and the minimum can be set to 5 minutes), if the difference of the ratio reaches a set value, the adjustment is carried out, so as to ensure the permanent color consistency of the system in operation;
(2) and (3) adjusting for a single time: when a user sets a manual adjustment single mode through control software, the system directly detects the overall color condition, and the system can reach the optimal consistency state after running single adjustment because the threshold value of the single adjustment is 0;
(3) and (3) no adjustment: no adjustment is made regardless of the system color.
Preferably, the data collection module is specifically implemented by issuing an adjustment instruction by a main unit in a UDP broadcast manner, and performing relevant steps and actions by other units according to the instruction, wherein for a single adjustment, only one cycle is performed, and for a real-time adjustment, periodic detection is performed at set time intervals.
Preferably, when the Sensor value adjusting module operates, since each Sensor has an individual difference, when the brightness and the chroma of the whole wall are the same, the RGB Sensor values of each unit are different, and the Sensor values are not the same as the basis for determining whether the color changes are the same, a reference Sensor value needs to be set first, the Sensor value under the condition that the system is adjusted to be the consistency of the whole wall is taken as a reference value, and if the change ratios of the actual Sensor value of the brightness Sensor and the reference Sensor value are the same, the brightness changes are considered to be the same.
Preferably, the brightness and chrominance adjusting module is divided into a bright and high mode, a common mode, an energy-saving mode and a user-defined mode, coefficients corresponding to the modes are issued by control software, the brightness mode coefficient is 100, the common mode coefficient is 80, the energy-saving mode coefficient is 60, values between 40 and 100 can be set arbitrarily in the user-defined mode, the coefficient of the consistency mode is 0, and the embedded software adjusts according to the adjusting coefficient.
The invention introduces a uniformity verification method, and a systematic method carries out actual data result measurement, the test result is greatly superior to the uniformity index specified by the national standard, and in the aspect of the evaluation of the uniformity effect of the whole wall, the invention is superior to the condition of no adjustment, the cost of regular manual maintenance can be saved, the visual display effect of an LCD display screen can be improved, and the problems of uniformity of display colors and the uniformity of long-term operation are solved.
Drawings
FIG. 1 is a block diagram of a mobile end display screen luminance and chrominance correction system based on LCD according to the present invention;
fig. 2 is a flowchart of an on-screen adjustment method of a mobile terminal display screen luminance and chrominance correction system based on an LCD according to the present invention.
Detailed Description
The present invention will be further illustrated with reference to the following specific examples.
Referring to fig. 1-2, the mobile terminal display screen brightness and chrominance correction system based on the LCD, provided by the invention, comprises main control software, PC control software, a data collection module, a Sensor value adjustment module and other data units;
the main control software comprises a configuration management module, a brightness and chrominance adjustment module, a DLP control module and a UDP broadcast module;
the PC control software is used for carrying out mode setting on the embedded software;
the data collection module is used for receiving the adjustment starting command, creating a data collection analysis thread, and judging whether adjustment is needed or not by regularly collecting and analyzing data;
the Sensor value adjusting module is used for adjusting a target Sensor value and comprises two steps of in-screen adjustment and inter-screen adjustment, and each unit acquires color data of the unit after receiving a command sent by the main unit;
the brightness and chrominance adjusting module is used for developing a brightness mode control function on the basis of a whole wall consistency algorithm to realize consistency control of the whole wall under various brightness levels, the whole wall brightness mode adjusting function can set the system to work under the brightness of any proportion, the brightness consistency of the whole wall is kept, and the corresponding brightness is selected according to actual needs;
the UDP broadcast module program is used for judging whether adjustment is needed or not by regularly collecting and analyzing data, broadcasting own data to other units through UDP broadcast, and receiving UDP broadcast data of other units at the same time.
In the invention, PC control software is divided into three modes of real-time adjustment, single adjustment and non-adjustment, specifically:
(1) and (3) real-time adjustment: the system detects the whole Sensor change ratio of the system at intervals (which can be set by control software, the default is 24 hours, and the minimum can be set to 5 minutes), if the difference of the ratio reaches a set value, the adjustment is carried out, so as to ensure the permanent color consistency of the system in operation;
(2) and (3) adjusting for a single time: when a user sets a manual adjustment single mode through control software, the system directly detects the overall color condition, and the system can reach the optimal consistency state after running single adjustment because the threshold value of the single adjustment is 0;
(3) and (3) no adjustment: no adjustment is made regardless of the system color.
In the invention, the data collection module is specifically realized in such a way that the main unit issues an adjustment instruction in a UDP (user Datagram protocol) broadcasting mode, other units perform related steps and actions according to the instruction, only once circulation is performed for single adjustment, and periodic detection is performed according to a set time interval for real-time adjustment.
In the invention, when the Sensor value adjusting module operates, because each Sensor has individual difference, under the condition that the brightness and the chroma of the whole wall are the same, the RGB Sensor values of all units are different, the same Sensor value cannot be used as the basis for judging whether the color change is consistent, a reference Sensor value needs to be set firstly, the system is adjusted to be the Sensor value under the condition that the whole wall is consistent as a reference value, and if the change ratios of the actual Sensor value of the brightness Sensor and the reference Sensor value are the same, the brightness change is considered to be the same.
In the invention, the brightness and chroma adjusting module is divided into four modes of a bright and high mode, a common mode, an energy-saving mode and a self-defining mode, the coefficients corresponding to the modes are issued by control software, the brightness mode coefficient is 100, the common mode coefficient is 80, the energy-saving mode coefficient is 60, the self-defining mode can be set to a value between 40 and 100 at will, the consistency mode coefficient is 0, and the embedded software adjusts according to the adjusting coefficient.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. A mobile terminal display screen brightness and chrominance correction system based on an LCD is characterized by comprising main control software, PC control software, a data collection module, a Sensor value adjustment module and other data units;
the main control software comprises a configuration management module, a brightness and chrominance adjustment module, a DLP control module and a UDP broadcast module;
the PC control software is used for carrying out mode setting on the embedded software;
the data collection module is used for receiving the adjustment starting command, creating a data collection analysis thread, and judging whether adjustment is needed or not by regularly collecting and analyzing data;
the Sensor value adjusting module is used for adjusting a target Sensor value and comprises two steps of in-screen adjustment and inter-screen adjustment, and each unit acquires color data of the unit after receiving a command sent by the main unit;
the brightness and chrominance adjusting module is used for developing a brightness mode control function on the basis of a whole wall consistency algorithm to realize consistency control of the whole wall under various brightness levels, the whole wall brightness mode adjusting function can set the system to work under the brightness of any proportion, the brightness consistency of the whole wall is kept, and the corresponding brightness is selected according to actual needs;
the UDP broadcast module program is used for judging whether adjustment is needed or not by regularly collecting and analyzing data, broadcasting own data to other units through UDP broadcast, and receiving UDP broadcast data of other units at the same time.
2. The system of claim 1, wherein the PC control software is divided into three modes, specifically:
(1) and (3) real-time adjustment: the system detects the whole Sensor change ratio of the system at intervals (which can be set by control software, the default is 24 hours, and the minimum can be set to 5 minutes), if the difference of the ratio reaches a set value, the adjustment is carried out, so as to ensure the permanent color consistency of the system in operation;
(2) and (3) adjusting for a single time: when a user sets a manual adjustment single mode through control software, the system directly detects the overall color condition, and the system can reach the optimal consistency state after running single adjustment because the threshold value of the single adjustment is 0;
(3) and (3) no adjustment: no adjustment is made regardless of the system color.
3. The LCD-based mobile terminal display screen brightness and chrominance correction system according to claim 1, wherein the data collection module is specifically implemented by issuing an adjustment instruction by a main unit in a UDP broadcast manner, and performing relevant steps and actions by other units according to the instruction, wherein for a single adjustment, only one cycle is performed, and for a real-time adjustment, periodic detection is performed according to a set time interval.
4. The LCD-based brightness and chrominance correction system for the mobile display screen of the LCD according to claim 1, wherein when the Sensor value adjustment module is operating, each Sensor has an individual difference, and when the brightness and chrominance of the whole wall are the same, the RGB Sensor values of each unit are different, and the same Sensor value cannot be used as a basis for judging whether the color changes are consistent, a reference Sensor value needs to be set first, the system is adjusted to be the Sensor value under the condition of the consistency of the whole wall as a reference value, and if the actual Sensor value of the brightness Sensor is the same as the change ratio of the reference Sensor value, the brightness changes are considered to be the same.
5. The LCD-based mobile terminal display screen brightness and chrominance correction system according to claim 1, wherein the brightness and chrominance adjustment module is divided into four modes, namely a bright mode, a normal mode, an energy-saving mode and a custom mode, coefficients corresponding to the modes are issued by control software, the bright mode coefficient is 100, the normal mode coefficient is 80, the energy-saving mode coefficient is 60, values between 40 and 100 can be set arbitrarily in the custom mode, the coefficient of the consistency mode is 0, and the embedded software performs adjustment according to the adjustment coefficient.
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Application publication date: 20211008 |