CN104681007A - Working method of real-time multi-order brightness stabilization system - Google Patents
Working method of real-time multi-order brightness stabilization system Download PDFInfo
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- CN104681007A CN104681007A CN201510115494.2A CN201510115494A CN104681007A CN 104681007 A CN104681007 A CN 104681007A CN 201510115494 A CN201510115494 A CN 201510115494A CN 104681007 A CN104681007 A CN 104681007A
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Abstract
The invention discloses a working method of a real-time multi-order brightness stabilization system. The working method comprises a brightness stabilization step and an order-by-order brightness calibration step. According to the working method provided by the invention, the brightness of each order of medical displays is calibrated, together with a liquid crystal display backlight stabilization system, the bright consistency and stability of the displays are ensured and the diagnosis correctness and efficiency of the doctors are improved.
Description
Technical field
The present invention relates to the method for work of the multistage brightness stability system of a kind of real-time.
Background technology
Brightness constancy is the important indicator evaluating medical display image displaying quality, display backlight lantern festival along with service time elongated and aging, and then cause the decay of image display brightness, set up the stability that brightness stability mechanism effectively can ensure display brightness.Only correct most high tap position brightness in traditional brightness stability mechanism, other grade of brightness is by calculating, and this scheme is difficult to ensure that each grade of brightness meets setting value, cannot realize the consistance of multiple stage display display brightness under same brightness gear.And when using multiple stage display to carry out contrast diagnosis, brightness uniformity is prerequisite.
Summary of the invention
The object of this invention is to provide the method for work of the multistage brightness stability system of a kind of real-time.
To achieve the object of the present invention, the present invention adopts technical scheme: the multistage brightness stability system of a kind of real-time, realize consistance and the stability of medical display image display brightness, it is characterized in that calibrating every single order brightness of setting, ensureing that its display brightness of different displays through calibrating under same brightness gear is consistent.
Setting brightness regulation exponent number is N, setting i-th (i=1,2 ... N) target brightness value that rank are corresponding is L
i;
Set up brightness stability system: in the display backlight sensor is installed, the rreturn value of this sensor Real-time Obtaining display backlight, there is corresponding relation in this rreturn value and the brightness of display actual displayed, each actual displayed brightness corresponds to a backlight sensor target rreturn value.For certain luminance, relatively the real-time rreturn value of backlight sensor and this brightness for target rreturn value, if rreturn value is greater than target rreturn value in real time, then reduce the PWM value of backlight, if rreturn value is greater than target rreturn value in real time, then increase the PWM value of backlight, if rreturn value equals target rreturn value in real time, then stop PWM to regulate, by PWM value stored in register.
Backlight sensor initial target rreturn value corresponding for every single order brightness is set as F
i;
Carrying out calibrating by rank to display brightness: for the i-th rank, allow display show white field picture, by regulating the PWM value of backlight, display brightness being adjusted to L
i, obtain the real-time rreturn value T of this display brightness lower back optical sensor
i, by F
ireplace with T
i;
The present invention has following beneficial effect: the present invention, under the prerequisite setting up brightness stability mechanism, corrects display each grade of brightness, ensure that the consistance of brightness, improve accuracy and the efficiency of diagnosis while guarantee display brightness is stable.
Accompanying drawing explanation
Fig. 1 is brightness stability mechanism schematic flow sheet in the present invention.
Fig. 2 be in the present invention brightness by rank correcting process schematic diagram.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
The invention provides the method for work specific embodiment of the multistage brightness stability system of a kind of real-time, brightness regulation is divided into 5 gears by the present embodiment, and every gear setting brightness value is respectively a, b, c, d, e.Its step is as follows:
Step one: shown in figure 1, set up brightness stability system: in the display backlight sensor is installed, the rreturn value of this backlight sensor Real-time Obtaining display backlight, there is corresponding relation in this rreturn value and the brightness of display actual displayed, each actual displayed brightness corresponds to a backlight sensor target rreturn value.For certain luminance, relatively the real-time rreturn value of backlight sensor and this brightness for target rreturn value, if rreturn value is greater than target rreturn value in real time, then reduce the PWM value of backlight, if rreturn value is greater than target rreturn value in real time, then increase the PWM value of backlight, if rreturn value equals target rreturn value in real time, then stop PWM to regulate, by PWM value stored in register;
Step 2: backlight sensor initial target rreturn value corresponding for every single order brightness is set as F
1, F
2, F
3, F
4, F
5;
Step 3: shown in figure 2, carries out calibrating by rank to display brightness: for the 1st grade of brightness, allow display show white field picture, by regulating the PWM value of backlight that display brightness is adjusted to a, obtains the real-time rreturn value T of this display brightness lower back optical sensor
1, by F
1replace with T
1;
The present invention calibrates the every single order brightness of medical display, in conjunction with LCD backlight systems stabilisation, ensure that consistance and the stability of display brightness, improves accuracy and the efficiency of diagnosis.
Certain above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalent transformations of doing according to the Spirit Essence of main technical schemes of the present invention or modification, all should be encompassed within protection scope of the present invention.
Claims (1)
1. a method of work for the multistage brightness stability system of real-time, is characterized in that: comprise the steps
Step one: set up the multistage brightness stability system of real-time, in the display backlight sensor is installed, the rreturn value of described backlight sensor Real-time Obtaining display backlight, there is corresponding relation in this rreturn value and the brightness of display actual displayed, each actual displayed brightness corresponds to a backlight sensor target rreturn value, for certain luminance, the target rreturn value that relatively the real-time rreturn value of backlight sensor is corresponding with this brightness, if rreturn value is greater than target rreturn value in real time, then reduce the PWM value of backlight, if rreturn value is greater than target rreturn value in real time, if the real-time rreturn value of the PWM value then increasing backlight equals target rreturn value, then stop PWM to regulate, by PWM value stored in register,
Step 2: the return value corresponding to every single order brightness has carried out initialization;
Step 3: carry out calibrating by rank to display brightness: setting brightness regulation exponent number is N, and setting target brightness value corresponding to the i-th rank is L
i, for the i-th rank, allowing backlight sensor target return display and show white field picture, by regulating the PWM value of backlight, display brightness being adjusted to L
i, obtain the real-time rreturn value T of this display brightness lower back optical sensor
i, backlight sensor target rreturn value is set to T
i.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510115494.2A CN104681007B (en) | 2015-03-16 | 2015-03-16 | A kind of method of work of the multistage brightness stability system of real-time |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510115494.2A CN104681007B (en) | 2015-03-16 | 2015-03-16 | A kind of method of work of the multistage brightness stability system of real-time |
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| CN104681007A true CN104681007A (en) | 2015-06-03 |
| CN104681007B CN104681007B (en) | 2018-05-01 |
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| CN105096843A (en) * | 2015-08-19 | 2015-11-25 | 京东方科技集团股份有限公司 | Backlight source, adjustment method and adjustment device thereof and display device |
| CN106448569A (en) * | 2016-08-31 | 2017-02-22 | 德为显示科技股份有限公司 | Control apparatus of liquid crystal display |
| CN106793337A (en) * | 2017-01-23 | 2017-05-31 | 深圳创维－Rgb电子有限公司 | A kind of circuit for lifting LED backlight brightness, method, device and controller |
| WO2018214622A1 (en) * | 2017-05-23 | 2018-11-29 | 京东方科技集团股份有限公司 | Display correction method and system |
| CN110136656A (en) * | 2019-04-24 | 2019-08-16 | 昆山龙腾光电有限公司 | Backlight module and liquid crystal display device |
| CN110890069A (en) * | 2018-09-07 | 2020-03-17 | 深圳市巨烽显示科技有限公司 | Display brightness adjusting method and device and display |
| CN111210763A (en) * | 2020-01-21 | 2020-05-29 | 卡莱特（深圳）云科技有限公司 | Gamma calibration method and device |
| CN113314081A (en) * | 2021-06-01 | 2021-08-27 | 南京德康光电科技有限公司 | Display device and method for gradual calibration and rapid and stable backlight brightness |
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| CN106448569A (en) * | 2016-08-31 | 2017-02-22 | 德为显示科技股份有限公司 | Control apparatus of liquid crystal display |
| CN106793337B (en) * | 2017-01-23 | 2019-08-06 | 深圳创维－Rgb电子有限公司 | A kind of circuit, method, apparatus and controller promoting LED backlight brightness |
| CN106793337A (en) * | 2017-01-23 | 2017-05-31 | 深圳创维－Rgb电子有限公司 | A kind of circuit for lifting LED backlight brightness, method, device and controller |
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| CN110890069A (en) * | 2018-09-07 | 2020-03-17 | 深圳市巨烽显示科技有限公司 | Display brightness adjusting method and device and display |
| CN110890069B (en) * | 2018-09-07 | 2021-04-20 | 深圳市巨烽显示科技有限公司 | Display brightness adjusting method and device and display |
| CN110136656A (en) * | 2019-04-24 | 2019-08-16 | 昆山龙腾光电有限公司 | Backlight module and liquid crystal display device |
| CN111210763A (en) * | 2020-01-21 | 2020-05-29 | 卡莱特（深圳）云科技有限公司 | Gamma calibration method and device |
| CN111210763B (en) * | 2020-01-21 | 2020-12-29 | 卡莱特（深圳）云科技有限公司 | Gamma calibration method and device |
| CN113314081A (en) * | 2021-06-01 | 2021-08-27 | 南京德康光电科技有限公司 | Display device and method for gradual calibration and rapid and stable backlight brightness |
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| CN104681007B (en) | 2018-05-01 |
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Effective date of registration: 20180308 Address after: 210036, block eight, building 01, 301 Hanzhoung Avenue, Gulou District, Jiangsu, Nanjing, Applicant after: Nanjing Jusha Display Technology Co., Ltd. Applicant after: NANJING JUSHA MEDICAL SCIENCE & TECHNOLOGY CO., LTD. Address before: 210029 Gulou District, Nanjing, Hanzhoung No. 301 Main Street, building eight, block A, 01, Applicant before: Nanjing Jusha Display Technology Co., Ltd. |
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