CN208985651U - A kind of LED display brightness self-adaptive regulating structure - Google Patents
A kind of LED display brightness self-adaptive regulating structure Download PDFInfo
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- CN208985651U CN208985651U CN201821622356.9U CN201821622356U CN208985651U CN 208985651 U CN208985651 U CN 208985651U CN 201821622356 U CN201821622356 U CN 201821622356U CN 208985651 U CN208985651 U CN 208985651U
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Abstract
The utility model relates to LED display technical fields, disclose a kind of LED display brightness self-adaptive regulating structure.LED display includes display unit, bracket, and display unit includes LED lamp panel and display screen control panel, and power supply, LED lamp panel are connected with display screen control panel, and LED lamp panel is equipped with LED light.Adjustment structure includes main road and secondary road, display screen control panel is equipped with LED light modulation driving, LED light modulation is drivingly connected main road and at least one secondary road, main road and each secondary road are separately connected a LED light, main road includes current detection module, and secondary road includes PWM module, is equipped with brightness control module between main road and secondary road, brightness control module is connect with PWM module, and brightness control module is connect with current detection module；It further include photosensitive sensor, photosensitive sensor is connect with brightness control module.The utility model is dimmed automatically according to surrounding brightness, realize multichannel dim simultaneously, can each LED light input current of mean allocation, fast response time, high conversion efficiency, reduce light modulation drives cost.
Description
Technical field
The utility model relates to LED display technical fields, more particularly to a kind of LED display brightness automatic adjusument
The design of structure.
Background technique
LED display (LED display) is a kind of flat-panel monitor, is made of LED module panel small one by one, is used
Equipment to show the various information such as text, image, video, video signal.As LED technology was used as a new generation to shine in recent years
Bright technology has received widespread attention, and LED display power consumption is also huge, for example, full-color screen substantially every square of maximum
Power is 600~700W or so, is exactly generally 250W or so if playing video, and text is probably 50 to arrive 80W or so, specifically
According to word number and size it is related, it is assumed that press least 50 watts every square, 18 squares of LED display, one hour is exactly 1
Degree electricity left and right, one month is exactly that electricity left and right is spent 700 more.On square or road sign etc., display screen is set, if without light modulation,
Dusk, night, early morning, cannot be adaptively adjusted according to illuminance, and huge waste, people will be generated to the energy
The positive technical solution for studying LED display and adapting to illuminance and changing brightness, to reach energy-saving and environment-friendly purpose.
Utility model content
The utility model is provided for the shortcomings that can not adjusting display brightness according to the ambient brightness in the prior art
A kind of LED display brightness self-adaptive regulating structure.
The utility model detects surrounding brightness using photosensitive sensor, transfers data to displaying screen controller, display screen
The suitable control signal of controller output.By setting main road and several secondary roads, realize that multichannel equal proportion dims simultaneously.
In order to solve the above-mentioned technical problem, the utility model is addressed by following technical proposals:
A kind of LED display brightness self-adaptive regulating structure is arranged in LED display, and LED display includes multiple aobvious
Show unit, bracket, the display unit include LED lamp panel, the LED light that the LED lamp panel upper surface is set, with it is described
LED lamp panel connected power supply and the display screen control panel that connects to power supply, display screen control panel controls the LED in LED lamp panel
The display of lamp, including main road and secondary road, display screen control panel are equipped with LED light modulation driving, and LED dims drive output connection one
Main road and at least one secondary road, main road and each secondary road are separately connected a LED light, and main road includes current detection module, secondary
Road includes PWM module, is equipped with brightness control module between main road and secondary road, brightness control module is connect with PWM module, brightness control
Molding block receives current detection module detected value, controls the output electric current of PWM module；It further include photosensitive sensor, light sensor
Device is connect with brightness control module, transmits current ambient environmental brightness data to brightness control module.
Lamp light-regulating driving output electric current, the LED light of main circuit connection are corresponding bright according to output size of current output
Degree, brightness control module are carried out pair by size of current on current detection module detection main road with preset a reference value
Than, then by preset program, be to export corresponding control signal referring to PWM module with ambient brightness, realize PWM mould
Control of the block to secondary road electric current, realizes main circuit current variation, and secondary circuital current follows the light modulation of variation referring to surrounding brightness
Function.
Preferably, be additionally provided with signal amplification module between main road and secondary road, signal amplification module respectively with current detecting
Module is connected with brightness control module；It is additionally provided with rectification filtering module, rectification filtering module is connected on lamp light-regulating driving and master
Between road；It is additionally provided with power module, power module is connected between alternating current and brightness control module.Rectification filtering module is to input
Electric current modified, make output electric current be more suitable for being adjusted by PWM module.Signal amplification circuit amplifies current detection module
Output signal compares convenient for brightness control module, keeps control process more accurate.Power module input terminal accesses rectifying and wave-filtering
Electric current after resume module, is adjusted it, exports 3.3V operating voltage to brightness control module, makes for brightness control module
With.
It is parallel with one another between secondary road preferably, secondary at least one, road, the PWM module on every road Tiao Fu all with brightness control
The electrical connection of molding block.
Preferably, photosensitive sensor is mounted on rack outer surface, photosensitive sensor is at least 5, effective detection position
It is respectively facing display unit front, left side, right side, underface and surface.Multi-faceted acquisition measured value is needed, is reduced abnormal
The interference of amount.
Preferably, there is frosted light-transmissive film on display unit surface.It can be avoided display screen surface mirror using frosted light-transmissive film
Reflective phenomenon caused by face is reflected.
The utility model has significant technical effect: automatic according to surrounding brightness due to using above technical scheme
Dimmed, realize multichannel dim simultaneously, can each LED light input current of mean allocation, fast response time, high conversion efficiency,
Reduce light modulation driving cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment 1.
Fig. 2 is the photosensitive sensor position view of the utility model embodiment 1.
The toponym that each number designation is referred in the figures above is as follows: where 1-display unit, 2-brackets, 3-
Photosensitive sensor.
Specific embodiment
The utility model is described in further detail with embodiment with reference to the accompanying drawing.
Embodiment 1
As depicted in figs. 1 and 2, a kind of LED display brightness self-adaptive regulating structure is arranged in LED display, LED
Display screen includes multiple display units 1, bracket 2, and the display unit 1 includes LED lamp panel, the LED lamp panel is arranged in
The LED light of upper surface, the power supply being connected with the LED lamp panel and the display screen control panel connected to power supply, display screen control
Plate controls the display of the LED light in LED lamp panel, including main road and secondary road, and display screen control panel is equipped with LED light modulation driving, LED
It dims drive output and connects a main road and at least one secondary road, main road and each secondary road are separately connected a LED light, main road
Including current detection module, secondary road includes PWM module, is equipped with brightness control module, brightness control module between main road and secondary road
It is connect with PWM module, brightness control module receives current detection module detected value, controls the output electric current of PWM module；Further include
Photosensitive sensor 3, photosensitive sensor 3 are connect with brightness control module, transmit current ambient environmental brightness to brightness control module
Data.
Be additionally provided with signal amplification module between main road and secondary road, signal amplification module respectively with current detection module and brightness
Control module connection；It is additionally provided with rectification filtering module, rectification filtering module is connected between lamp light-regulating driving and main road；Also set
There is power module, power module is connected between alternating current and brightness control module.
At least one, secondary road, parallel with one another between secondary road, the PWM module on every road Tiao Fu is all electrically connected with brightness control module
It connects.
Photosensitive sensor 3 is mounted on 2 outer surface of bracket, and photosensitive sensor 3 is at least 5, effective detection position court respectively
To 1 front of display unit, left side, right side, underface and surface.
There is frosted light-transmissive film on 1 surface of display unit.In short, the above is only the preferred embodiment of the present invention, it is all
Equivalent changes and modifications made according to the patent scope of the utility model should all belong to the covering scope of the utility model patent.
Claims (5)
1. a kind of LED display brightness self-adaptive regulating structure is arranged in LED display, LED display includes multiple displays
Unit (1), bracket (2), the display unit (1) include LED lamp panel, the LED that the LED lamp panel upper surface is arranged in
Lamp, the power supply being connected with the LED lamp panel and the display screen control panel connected to power supply, display screen control panel control LED light
The display of LED light on plate, it is characterised in that: including main road and secondary road, display screen control panel is equipped with LED light modulation driving, LED
It dims drive output and connects a main road and at least one secondary road, main road and each secondary road are separately connected a LED light, main road
Including current detection module, secondary road includes PWM module, is equipped with brightness control module, brightness control module between main road and secondary road
It is connect with PWM module, brightness control module receives current detection module detected value, controls the output electric current of PWM module；Further include
Photosensitive sensor (3), photosensitive sensor (3) are connect with brightness control module, transmit current ambient environmental to brightness control module
Brightness data.
2. a kind of LED display brightness self-adaptive regulating structure according to claim 1, it is characterised in that: main road and pair
Signal amplification module is additionally provided between road, signal amplification module is connect with current detection module and brightness control module respectively；Also
Equipped with rectification filtering module, rectification filtering module is connected between lamp light-regulating driving and main road；It is additionally provided with power module, power supply
Module is connected between alternating current and brightness control module.
3. a kind of LED display brightness self-adaptive regulating structure according to claim 1, it is characterised in that: secondary road is at least
There is one, parallel with one another between secondary road, the PWM module on every road Tiao Fu is all electrically connected with brightness control module.
4. a kind of LED display brightness self-adaptive regulating structure according to claim 1, it is characterised in that: light sensor
Device (3) is mounted on bracket (2) outer surface, and photosensitive sensor (3) is at least 5, and effective detection position is respectively facing display unit
(1) front, left side, right side, underface and surface.
5. a kind of LED display brightness self-adaptive regulating structure according to claim 1, it is characterised in that: display unit
(1) there is frosted light-transmissive film on surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821622356.9U CN208985651U (en) | 2018-09-30 | 2018-09-30 | A kind of LED display brightness self-adaptive regulating structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821622356.9U CN208985651U (en) | 2018-09-30 | 2018-09-30 | A kind of LED display brightness self-adaptive regulating structure |
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| CN208985651U true CN208985651U (en) | 2019-06-14 |
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| CN201821622356.9U Active CN208985651U (en) | 2018-09-30 | 2018-09-30 | A kind of LED display brightness self-adaptive regulating structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112201197A (en) * | 2020-10-10 | 2021-01-08 | 天长市辉盛电子有限公司 | System for adjusting display brightness of LED display screen |
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2018
- 2018-09-30 CN CN201821622356.9U patent/CN208985651U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112201197A (en) * | 2020-10-10 | 2021-01-08 | 天长市辉盛电子有限公司 | System for adjusting display brightness of LED display screen |
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