CN205122116U - Automatic brightness control device of outdoor full -color LED large screen display screen - Google Patents
Automatic brightness control device of outdoor full -color LED large screen display screen Download PDFInfo
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- CN205122116U CN205122116U CN201520898527.0U CN201520898527U CN205122116U CN 205122116 U CN205122116 U CN 205122116U CN 201520898527 U CN201520898527 U CN 201520898527U CN 205122116 U CN205122116 U CN 205122116U
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Abstract
The utility model belongs to the technical field of LED screen brilliance control, concretely relates to luminance automatic regulating apparatus who is applied to outdoor full -color LED large screen, concrete technical scheme does: automatic brightness control device of outdoor full -color LED large screen display screen, which comprises a housin, a plurality of preceding photosensitive tubes have been arranged in the front of casing, a plurality of side photosensitive tubes have been arranged to the side of casing, a plurality of out -of -the -way photosensitive tubes have been arranged at the back of casing, photosensitive tube before a plurality of, the response end of a plurality of side photosensitive tubes and a plurality of out -of -the -way photosensitive tubes all sets up outwards, photosensitive tube before a plurality of, the signal output part of a plurality of side photosensitive tubes and a plurality of out -of -the -way photosensitive tubes links to each other with the signal inlet of balanced device, the signal output part of balanced device links to each other with the signal input part of controller, the balanced device carries out the input of average back to trilateral luminance and gives the controller, luminance after average is the luminance of display screen department's environment, can accurately transmit the luminance data, avoid one -sided ambient brightness to influence the adjustting of the lighteness of display screen.
Description
Technical field
The utility model belongs to LED screen brilliance control technical field, is specifically related to a kind of automatic brightness regulating device being applied to outdoor full color LED giant-screen.
Background technology
Outdoor full color LED big screen display screen is a kind ofly driven the display mode controlling semiconductor light-emitting-diode by constant current, by controlling primitive colours lamp pearl brightness change, shows various color.Be used for showing the display screen of the various information such as word, figure, image, animation, market, video, video signal.Be mainly used in outdoor high density picture exhibition purposes, water proof wind proof is dust-proof.
The only way of the specific requirement that energy-saving and emission-reduction are built as smart city and urban sustainable development, is paid much attention to by governments at all levels.All specific requirement is proposed to green illumination in country's " Eleventh-Five Year Plan " and " 12 planning ", and go into overdrive to help technology of Internet of things at the embody rule of illuminating industry.Auto brightness control system is a automatic brightness control device for outdoor full color LED big screen display screen, outdoor full color LED big screen display screen more and more appears in city, and along with the development of technology, the reduction of cost, be more and more subject to the favor of people.But it is following, many problems also come out gradually, be mainly manifested in the following aspects: the LED large display screen being arranged on this class traffic sensitizing range, confluence, city, brightness is too high, conversion frequency is too fast causes vision to disturb to pedestrian and vehicle operator, forms visual pollution; Dynamic flash color conversion easily disperses the notice of human pilot, causes a series of accidents such as traffic accident, causes the potential safety hazard of road traffic; By the impact of environmental change, the outdoor LED display screen brightness and contrast that people watch can produce decline to a certain degree, causes display frame color dim, smudgy, affects the appreciative value of whole display screen.
Utility model content
For solving high, the brilliance control weak effect of outdoor full color LED big screen display screen cost that prior art exists and the high technical matters of energy consumption, aim to provide a kind of outdoor full color LED big screen display screen of automatic brightness adjustment, control effects is good, and energy consumption is low, the long service life of display screen.
For achieving the above object, the technical scheme that the utility model adopts is: the automatic brightness control device of outdoor full color LED big screen display screen, comprise housing and transparent face mask, display screen is provided with in housing, transparent face mask is combined on housing by many bolt removable covers, between transparent face mask and housing, driving can hold the appearance matter chamber of display screen, display screen is arranged on and holds in matter chamber, transparent face mask windproof and rain proof, external environment is avoided to cause coup injury to display screen, extend the serviceable life of display screen, and the appreciation effect of display screen can not be affected, easy to clean, maintainable strong.
The front of housing is furnished with multiple front photosensitive tube, multiple front photosensitive tube is used for detecting the brightness of housing face side, the side arrangement of housing has multiple sides photosensitive tube, the quick effective brightness detecting housing side of multiple sidelight, the back side of housing is furnished with multiple back of the body photosensitive tube, the quick effective brightness detecting back side of shell of multiple backlight, the induction end of multiple front photosensitive tube, multiple sides photosensitive tube and multiple back of the body photosensitive tube is arranged all outwardly.Multiple front photosensitive tube, multiple sides photosensitive tube are connected with the signal input of balanced device with multiple signal output part of back of the body photosensitive tube, the signal output part of balanced device is connected with the signal input part of controller, balanced device inputs to controller after being averaged to the brightness of three, the brightness of the brightness environment residing for display screen after average, brightness data can be transmitted exactly like this, avoid one-sided ambient brightness to affect the brightness regulation of display screen.Especially for being in the bustling local outdoor full color LED giant-screen in city, the brightness change that complex environment brings is very frequent, adopts the brightness regulation of this equilibrium, the display brightness of display screen can be controlled to best appreciation effect.
Be provided with brightness comparative device on controller and between display screen, brightness contrast device is used for contrasting the ambient brightness of collection and the display brightness of display, and then controls the brightness degree of display.
The luminance signal output terminal of controller is connected with display screen with the second delay circuit, brightness regulator successively, when the environment mean flow rate gathered and the display brightness of display inconsistent time, regulate with regard to needing the brightness of brightness regulator to display screen, second delay circuit is set between controller and display screen, car light or other brightness of flashing can be avoided to impact regulating system, and the delay length of the second delay circuit is determined according to concrete road conditions or environmental factor.
The signal output part of multiple front photosensitive tube is also connected with controller by the first delay circuit, picture exhibition end due to display screen is positioned at the front of display screen, therefore the brightness of face side is the principal element determining brightness of display screen, for the display screen in some special places, when the brightness of face side is far longer than the brightness of rear side and side, when this luminance difference continues the setting value of the first delay circuit, the external environment brightness data of controller collection is as the criterion with the brightness of face side, and the final brightness of brightness regulation display screen according to face side.
A blast pipe and two exhaust ducts are furnished with in housing, two exhaust ducts are all connected with blast pipe by air-return duct, return fan is provided with in air-return duct, by blast pipe and two exhaust ducts, enclosure interior is lowered the temperature, the heat that brightness control system and display screen distribute is drained as early as possible, ensure the normal operation of display screen, extend and continue service time.
Wherein, as preferably, on blast pipe all be furnished with multiple air vent, improve radiating effect.
Wherein, as preferably, two exhaust ducts are all furnished with multiple air vent, improve radiating effect further.
Wherein, between many bolts and transparent face mask, be pressed with bullet pad, avoid causing damage to transparent face mask.
The utility model is controlled by two kinds of control mode brightness to display screen, a kind of is be averaged to the brightness of the extraneous all angles of display screen to regulate the brightness of display screen, a kind of is when the face side brightness of display screen is apparently higher than the brightness of other angles, be as the criterion with the brightness of display screen face side and regulate the brightness of display screen, various external environment condition can be adapted to, economical and practical, energy consumption is low, and physical life is long.
Accompanying drawing explanation
Fig. 1 is control principle drawing of the present utility model.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is inner schematic diagram of the present utility model.
In figure, 1 is housing, and 2 is transparent face mask, and 3 is bullet pad, and 4 is front photosensitive tube, and 5 is side photosensitive tube, and 6 is back of the body photosensitive tube, and 7 is blast pipe, and 8 is exhaust duct, and 9 is air vent.
Embodiment
In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As Figure 1-3, the automatic brightness control device of outdoor full color LED big screen display screen, comprise housing 1 and transparent face mask 2, display screen is provided with in housing 1, transparent face mask 2 is combined on housing 1 by many bolt removable covers, drive a vehicle between transparent face mask 2 and housing 1 and can hold the appearance matter chamber of display screen, display screen is arranged on and holds in matter chamber, transparent face mask 2 windproof and rain proof, avoid external environment to cause coup injury to display screen, extend the serviceable life of display screen, and the appreciation effect of display screen can not be affected, easy to clean, maintainable strong.
The front of housing 1 is furnished with multiple front photosensitive tube 4, multiple front photosensitive tube 4 is used for detecting the brightness of housing 1 face side, the side arrangement of housing 1 has multiple sides photosensitive tube 5, multiple sides photosensitive tube 5 is used for detecting the brightness of housing 1 side, the back side of housing 1 is furnished with multiple back of the body photosensitive tube 6, multiple back of the body photosensitive tube 6 is used for detecting the brightness at housing 1 back side, and the induction end of multiple front photosensitive tube 4, multiple sides photosensitive tube 5 and multiple back of the body photosensitive tube 6 is arranged all outwardly.Multiple front photosensitive tube 4, multiple sides photosensitive tube 5 are connected with the signal input of balanced device with multiple signal output part of back of the body photosensitive tube 6, the signal output part of balanced device is connected with the signal input part of controller, balanced device inputs to controller after being averaged to the brightness of three, the brightness of the brightness environment residing for display screen after average, brightness data can be transmitted exactly like this, avoid one-sided ambient brightness to affect the brightness regulation of display screen.Especially for being in the bustling local outdoor full color LED giant-screen in city, the brightness change that complex environment brings is very frequent, adopts the brightness regulation of this equilibrium, the display brightness of display screen can be controlled to best appreciation effect.
Be provided with brightness comparative device on controller and between display screen, brightness contrast device is used for contrasting the ambient brightness of collection and the display brightness of display, and then controls the brightness degree of display.
The luminance signal output terminal of controller is connected with display screen with the second delay circuit, brightness regulator successively, when the environment mean flow rate gathered and the display brightness of display inconsistent time, regulate with regard to needing the brightness of brightness regulator to display screen, second delay circuit is set between controller and display screen, car light or other brightness of flashing can be avoided to impact regulating system, and the delay length of the second delay circuit is determined according to concrete road conditions or environmental factor.
The signal output part of multiple front photosensitive tube 4 is also connected with controller by the first delay circuit, picture exhibition end due to display screen is positioned at the front of display screen, therefore the brightness of face side is the principal element determining brightness of display screen, for the display screen in some special places, when the brightness of face side is far longer than the brightness of rear side and side, when this luminance difference continues the setting value of the first delay circuit, the external environment brightness data of controller collection is as the criterion with the brightness of face side, and the final brightness of brightness regulation display screen according to face side.
A blast pipe 7 and two exhaust ducts 8 are furnished with in housing 1, two exhaust ducts 8 are all connected with blast pipe 7 by air-return duct, return fan is provided with in air-return duct, by blast pipe 7 and two exhaust ducts 8, housing 1 inside is lowered the temperature, the heat that brightness control system and display screen distribute is drained as early as possible, ensure the normal operation of display screen, extend and continue service time.
Wherein, as preferably, on blast pipe 7 all be furnished with multiple air vent 9, improve radiating effect.
Wherein, as preferably, two exhaust ducts 8 are all furnished with multiple air vent 9, improve radiating effect further.
Wherein, between many bolts and transparent face mask 2, be pressed with bullet pad 3, avoid causing damage to transparent face mask 2.
The utility model is controlled by two kinds of control mode brightness to display screen, a kind of is be averaged to the brightness of the extraneous all angles of display screen to regulate the brightness of display screen, a kind of is when the face side brightness of display screen is apparently higher than the brightness of other angles, be as the criterion with the brightness of display screen face side and regulate the brightness of display screen, various external environment condition can be adapted to, economical and practical, energy consumption is low, and physical life is long.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should wrap within the scope of the utility model.
Claims (6)
1. the automatic brightness control device of outdoor full color LED big screen display screen, comprise housing (1) and transparent face mask (2), housing is provided with display screen in (1), transparent face mask (2) is combined on housing (1) by many bolt removable covers, it is characterized in that, the front of described housing (1) is furnished with multiple front photosensitive tube (4), the side arrangement of housing (1) has multiple sides photosensitive tube (5), the back side of housing (1) is furnished with multiple back of the body photosensitive tube (6), multiple front photosensitive tube (4), multiple sides photosensitive tube (5) are connected with the signal input of balanced device with the signal output part of multiple back of the body photosensitive tube (6), the signal output part of balanced device is connected with the signal input part of controller, the luminance signal output terminal of controller successively with the second delay circuit, brightness regulator is connected with display screen, brightness comparative device is also provided with on controller and between display screen.
2. the automatic brightness control device of outdoor full color LED big screen display screen according to claim 1, is characterized in that, the signal output part of described multiple front photosensitive tube (4) is also connected with controller by the first delay circuit.
3. the automatic brightness control device of outdoor full color LED big screen display screen according to claim 2, it is characterized in that, a blast pipe (7) and two exhaust ducts (8) are furnished with in described housing (1), two exhaust ducts (8) are all connected with blast pipe (7) by air-return duct, are provided with return fan in air-return duct.
4. the automatic brightness control device of outdoor full color LED big screen display screen according to claim 3, is characterized in that, described blast pipe (7) upper all be furnished with multiple air vent (9).
5. the automatic brightness control device of outdoor full color LED big screen display screen according to claim 4, is characterized in that, two described exhaust ducts (8) are all furnished with multiple air vent (9).
6. the automatic brightness control device of outdoor full color LED big screen display screen according to claim 5, is characterized in that, is pressed with bullet pad (3) between many described bolts and transparent face mask (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520898527.0U CN205122116U (en) | 2015-11-12 | 2015-11-12 | Automatic brightness control device of outdoor full -color LED large screen display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520898527.0U CN205122116U (en) | 2015-11-12 | 2015-11-12 | Automatic brightness control device of outdoor full -color LED large screen display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205122116U true CN205122116U (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520898527.0U Expired - Fee Related CN205122116U (en) | 2015-11-12 | 2015-11-12 | Automatic brightness control device of outdoor full -color LED large screen display screen |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109285509A (en) * | 2018-11-29 | 2019-01-29 | 重庆长安汽车股份有限公司 | A kind of the display brightness control system and automobile of vehicle-carrying display screen |
-
2015
- 2015-11-12 CN CN201520898527.0U patent/CN205122116U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109285509A (en) * | 2018-11-29 | 2019-01-29 | 重庆长安汽车股份有限公司 | A kind of the display brightness control system and automobile of vehicle-carrying display screen |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160330 |