CN101800027A - Light intensity adjusting method of outdoor high-brightness LED display screen - Google Patents
Light intensity adjusting method of outdoor high-brightness LED display screen Download PDFInfo
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- CN101800027A CN101800027A CN201010042870A CN201010042870A CN101800027A CN 101800027 A CN101800027 A CN 101800027A CN 201010042870 A CN201010042870 A CN 201010042870A CN 201010042870 A CN201010042870 A CN 201010042870A CN 101800027 A CN101800027 A CN 101800027A
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Abstract
The invention discloses a light intensity adjusting method of a display screen, which comprises the steps of: detecting the maximum light intensity value 1 when the display screen has the LED conduction duty ratio is 100%; setting the maximum light intensity value 2 when in an energy-saving working mode; and if the maximum light intensity value 2 is lower than the maximum light intensity value 1, controlling the display screen to enter the energy-saving working mode, adjusting the current LED conduction duty ratio between 0 and the LED conduction duty ratio corresponding to the maximum light intensity value 2 according to the light intensity adjusting way selected by the user at present. By adopting the method, the energy loss of an LED can be saved, the service life thereof is prolonged, and the method is simple and easy to realize.
Description
Technical field
The present invention relates to the display screen field, relate in particular to the brightness adjusting method of outdoor high-brightness LED display screen.
Background technology
In the current medium epoch, the outdoor large screen advertisement can attract to pay close attention to more, thus increasing production firm more and more the parent look in adopting outdoor advertisement screen to issue its product information.At present, for energy savings, each big city all is provided with outdoor high-brightness LED display screen and is used for providing various information to the common people.In the use of these outdoor high-brightness LED display screens, in order to be applicable to varying environment or to meet the needs of different users, outdoor high-brightness LED display screen provides multiple brightness adjustment approach, as according to the automatic regulative mode of ambient brightness, manual adjustments mode and according to time regulative mode etc. regularly.Yet, no matter adopt which kind of brightness adjustment approach, the LED conducting dutycycle of display screen all is to adjust between 0-100%, yet, many times, because the broadcast of background image needs, the conducting dutycycle of LED display can be near 100%, make the brightness of LED display very high, and concerning the common people, the brightness value of such display screen can exceed the common people's normal identification brightness, can't see the shown content of LED display clearly, will certainly cause unnecessary energy dissipation like this, most of LED also can accelerate the loss of LED with high brightness work simultaneously.
Therefore, for the principle that the energy effectively utilizes and saves, be necessary to improve the working method of LED display.
Summary of the invention
Matter of utmost importance to be solved by this invention provides a kind of brightness adjusting method of outdoor high-brightness LED display screen, and this method can effectively be saved the energy consumption of LED display, prolongs the serviceable life of LED.
Be to provide a kind of brightness adjusting method of outdoor high-brightness LED display screen, this method is by the brightness that effectively is used to realize controlling LED display to LED conducting dutycycle, to avoid the waste of resource another order of the present invention.
For solving the problems of the technologies described above, the present invention adopts following solution:
A kind of brightness adjusting method of display screen comprises:
The detection display screen is 100% o'clock maximum brightness value one in LED conducting dutycycle;
Maximum brightness value two under the energy conservation pattern is set;
If described maximum brightness value two is less than maximum brightness value one, then control display screen enters the energy conservation pattern, according to the current selected brightness adjustment approach of user 0 to regulating current LED conducting dutycycle between the maximum brightness value two pairing LED conducting dutycycles.
Said method also comprises: if described maximum brightness value two is not less than maximum brightness value one, then control display screen enters normal mode of operation, regulates current LED conducting dutycycle according to the current selected brightness adjustment approach of user between 0 to 100%.
Said method, under the energy conservation pattern, when using M level brilliance control grade, then (promptly first part is 0-n from 0 to being divided into the M equal portions the maximum brightness value two pairing dutycycles (n%) with LED conducting dutycycle
1%, second part is n
1%-n
2% ..., M part is n
M-1%-n
M%), the corresponding corresponding conducting dutycycle of each grade brightness degree is (as grade m corresponding to LED conducting dutycycle n
m).
Above-mentioned method, under normal mode of operation, when using M level brilliance control grade, then (promptly first part is 0-n from 0 to being divided into the M equal portions the maximum brightness value one pairing dutycycle (100%) with LED conducting dutycycle
1%, second part is n
1%-n
2% ..., M part is n
M-1%-100%), the corresponding corresponding conducting dutycycle of each grade brightness degree.
In the said method, the current selected brightness adjustment approach of described user is according to the automatic regulative mode of ambient brightness, manual adjustments mode or according to time regulative mode regularly.
The present invention has following beneficial effect:
Compared with prior art, display screen has increased the energy conservation pattern newly among the present invention, can be according to user's requirement, the situation of current application occasion, the regulation that the industry product standard pin is done maximum brightness value etc., choose a less brightness value that meets the demands as the maximum brightness value of display screen under the energy conservation pattern, and (automatically according to the current selected brightness adjustment approach of user, regulative mode etc. manually or regularly) between 0 the pairing LED conducting of maximum brightness value dutycycle to the energy conservation pattern, regulates current LED conducting dutycycle, to realize adjusting to brightness, so both can save the energy loss of LED, can delay the serviceable life of LED again, and simply be easy to realize.
Description of drawings
Fig. 1 is the brightness adjusting method process flow diagram of display screen in the embodiment of the invention.
Fig. 2 be in the embodiment of the invention display screen under the energy conservation pattern and the brightness under the normal mode of operation adjust curve contrast synoptic diagram.
Embodiment
Core concept of the present invention is: do not change current various brightness adjustment approach (as according to ambient brightness automatic regulative mode, manual adjustments mode, according to time regulative mode etc. regularly) prerequisite under, choose a less brightness value that satisfies application requirements in advance as the maximum brightness value of display screen under the energy conservation pattern, so far carry out brightness regulation according to above-mentioned brightness adjustment approach between the LED conducting dutycycle of maximum brightness value correspondence 0.
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments:
See also Fig. 1, in the present embodiment, the brightness adjusting method of outdoor high-brightness LED display screen may further comprise the steps:
101, the LED conducting dutycycle of control display screen is 100% (LED that is display screen is in whole conducting states), uses this moment Japan to open up general health YC meter BM-7 and measures the current maximum brightness value P1 of display screen.
102, according to the situation of user's requirement, current application scenario, regulation that the industry product standard pin is done maximum brightness value etc., choose a less brightness value that meets the demands as the maximum brightness value P2 of display screen under the energy conservation pattern.For example: in the national standard of highway display screen, the maximum brightness value of regulation display screen is greater than 8000CD/m
2, then can choose P2 in this step and be slightly larger than 8000CD/m
2
103, when P1＞P2, the LED conducting dutycycle that reduces display screen gradually reaches P2 until current brightness value, and the LED conducting dutycycle n% of record this moment, still uses BM-7 monitoring brightness value in this adjustment process; Execution in step 104 afterwards.
When P1≤P2, because the maximum brightness value of this display screen is lower than/equals the maximum brightness value of requirement, then need not to carry out again energy-efficient treatment, only need carry out the adjusting of brightness, execution in step 105 according to common brightness adjustment approach.
104, display screen enters the energy conservation pattern, under this pattern, regulates current LED conducting dutycycle according to the current selected regulative mode of user between 0 to n%.For example: when using M level brilliance control grade (such as commonly used 8 grades, 16 grades or 32 grades etc.), then (promptly first part is 0-n with being divided into the M equal portions between the 0-n%
1%, second part is n
1%-n
2% ..., M part is n
M-1%-n
M%), the corresponding corresponding conducting dutycycle of each grade brightness degree is (as grade m corresponding to LED conducting dutycycle n
m).
At this moment, the LED of (100-n) % of display screen part is in nonconducting state, like this, has promptly saved the energy consumption of LED, can delay the serviceable life of LED again.
105, display screen enters normal mode of operation, under this pattern, regulates current LED conducting dutycycle according to the current selected regulative mode of user between 0 to 100%.For example: when using M level brilliance control grade (such as commonly used 8 grades, 16 grades or 32 grades etc.), then will be divided into the M equal portions between the 0-100%, the corresponding corresponding conducting dutycycle of each grade brightness degree.Adjust grade when identical when brightness, display screen is identical with the brightness change curve under the normal mode of operation under the energy conservation pattern, and adjustment curve as shown in Figure 2 contrasts synoptic diagram.
In a word, the described several embodiments of the foregoing description are not represented all implementations of the present invention; Above embodiment is not to concrete qualification of the present invention, and all and the similar scheme of technical solution of the present invention all should belong to protection scope of the present invention.
Claims (5)
1. the brightness adjusting method of an outdoor high-brightness LED display screen is characterized in that, this method comprises:
The detection display screen is 100% o'clock maximum brightness value one in LED conducting dutycycle;
Maximum brightness value two under the energy conservation pattern is set;
If described maximum brightness value two is less than maximum brightness value one, then control display screen enters the energy conservation pattern, according to the current selected brightness adjustment approach of user 0 to regulating current LED conducting dutycycle between the maximum brightness value two pairing LED conducting dutycycles.
2. the brightness adjusting method of outdoor high-brightness LED display screen according to claim 1, it is characterized in that, this method also comprises: if described maximum brightness value two is not less than maximum brightness value one, then control display screen enters normal mode of operation, regulates current LED conducting dutycycle according to the current selected brightness adjustment approach of user between 0 to 100%.
3. the brightness adjusting method of outdoor high-brightness LED display screen according to claim 1, it is characterized in that under the energy conservation pattern, when using M level brilliance control grade, then LED conducting dutycycle is divided into the M equal portions from 0 to maximum brightness value two pairing dutycycles, the corresponding corresponding conducting dutycycle of each grade brightness degree.
4. the brightness adjusting method of outdoor high-brightness LED display screen according to claim 2, it is characterized in that above-mentioned method, under normal mode of operation, when using M level brilliance control grade, then LED conducting dutycycle is divided into the M equal portions from 0 to maximum brightness value one pairing dutycycle, the corresponding corresponding conducting dutycycle of each grade brightness degree.
5. the brightness adjusting method of outdoor high-brightness LED display screen according to claim 1 and 2, it is characterized in that the current selected brightness adjustment approach of described user is according to the automatic regulative mode of ambient brightness, manual adjustments mode or according to time regulative mode regularly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010042870A CN101800027A (en) | 2010-01-20 | 2010-01-20 | Light intensity adjusting method of outdoor high-brightness LED display screen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010042870A CN101800027A (en) | 2010-01-20 | 2010-01-20 | Light intensity adjusting method of outdoor high-brightness LED display screen |
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| CN101800027A true CN101800027A (en) | 2010-08-11 |
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| CN201010042870A Pending CN101800027A (en) | 2010-01-20 | 2010-01-20 | Light intensity adjusting method of outdoor high-brightness LED display screen |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105185310A (en) * | 2015-10-10 | 2015-12-23 | 西安诺瓦电子科技有限公司 | Display screen brightness adjusting method |
| CN105355188A (en) * | 2015-11-23 | 2016-02-24 | 广东欧珀移动通信有限公司 | Method and system for adjusting screen brightness of mobile terminal and mobile terminal |
| CN110689862A (en) * | 2019-11-13 | 2020-01-14 | 深圳市道通科技股份有限公司 | Screen brightness adjusting method and mobile terminal |
| CN114141194A (en) * | 2021-12-03 | 2022-03-04 | 浙江欧菲克斯交通科技有限公司 | Self-adaptive brightness adjustment method and system for outdoor LED display screen |
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| CN1624531A (en) * | 2003-12-05 | 2005-06-08 | Lg电子株式会社 | Brightness control apparatus and method for a video display appliance |
| CN101354869A (en) * | 2008-09-09 | 2009-01-28 | 南京Lg新港显示有限公司 | Device and method for automatically adjusting display lighteness according to input signal |
| CN101520991A (en) * | 2008-02-27 | 2009-09-02 | 深圳Tcl新技术有限公司 | Image status adjustment method for liquid crystal display |
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2010
- 2010-01-20 CN CN201010042870A patent/CN101800027A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1624531A (en) * | 2003-12-05 | 2005-06-08 | Lg电子株式会社 | Brightness control apparatus and method for a video display appliance |
| CN101520991A (en) * | 2008-02-27 | 2009-09-02 | 深圳Tcl新技术有限公司 | Image status adjustment method for liquid crystal display |
| CN101354869A (en) * | 2008-09-09 | 2009-01-28 | 南京Lg新港显示有限公司 | Device and method for automatically adjusting display lighteness according to input signal |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US9900947B2 (en) | 2015-08-19 | 2018-02-20 | Boe Technology Group Co., Ltd. | Backlight, regulation method thereof, regulation device and display device |
| CN105185310A (en) * | 2015-10-10 | 2015-12-23 | 西安诺瓦电子科技有限公司 | Display screen brightness adjusting method |
| CN105355188A (en) * | 2015-11-23 | 2016-02-24 | 广东欧珀移动通信有限公司 | Method and system for adjusting screen brightness of mobile terminal and mobile terminal |
| CN110689862A (en) * | 2019-11-13 | 2020-01-14 | 深圳市道通科技股份有限公司 | Screen brightness adjusting method and mobile terminal |
| CN114141194A (en) * | 2021-12-03 | 2022-03-04 | 浙江欧菲克斯交通科技有限公司 | Self-adaptive brightness adjustment method and system for outdoor LED display screen |
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Application publication date: 20100811 |