The different LED technologies and their advantages, Direct LED
Direct LED
From 70 to 200w they are more compact, more efficient and easier to install than traditional highbay.
LED technology
“LED” is an abbreviation for ” Light Emitting Diode Which represents an electronic component. It has the particularity of diffusing light from the moment it is powered by an electric current.
Classic “LED” screens have a technology operating with a combined neon backlight system. But today, the neon tubes (CCFL) are substituted by electroluminescent diodes. We also find these LED diodes not only in screens but also in public lighting.
LED advantages for the LCD screen
The LED screen is an LCD screen that uses more homogeneous LCD slab backlighting technology. Its system works similarly to that of conventional LCDs but remains closely different to plasma technology. It consumes less than 40% energy without harming the resolution of the image and the brightness of the monitor. Otherwise, its contrast rate is higher and it displays black blacks.
There are several types of LED technologies. First, Edge LED technology with its diodes located on the edge of the LCD slab. It allows you to gain thickness in order to acquire finer screens, less than 3 centimeters. Second, Full LED technology whose diodes are exposed on the entire surface of the LCD slab. For certain ranges, these different technologies benefit in addition to “local dimming”
The different LED technologies
- LCD EDGE LED flat screen
With this screen, LED diodes are established on the whole edge of the LCD slab. Light reflectors also give a diffusion of LED light on the entire LCD slab.
- FULL LED or Direct LED Flat Screen
The distribution of LEDs of Full LED or Direct LED type are already used by several televisions. Here, LED diodes for backlighting that are hidden at the back of the LCD slab completely cover the screen. Thus, we have a more homogeneous backlight than the previous technology. Only drawback, the thickness of the screen will be larger.
In addition, the screens that use the three LEDs (RGB: red, green, and blue) benefit from a better adjustment of the colorimetry.
- LCD Full LED + Local Dimming Screens
Each LED diode has an artificial intelligence that allows it to light and extinguish itself automatically, for example, in the case of a strong or low light of the scene.
Compared to traditional LCD screens, the start of areas is more active and blacks are even more intense. We can even say that this technology is equivalent to that of plasma screens because it offers excellent rendering.
- LCD EDGE LED + Local Dimming Screens
The EDGE LED technology LCD screen has the same assets of “local dimming” in terms of image quality and screen delicacy.
LED advantages for flat screens
The 2 advantages of LED technology for flat screens are:
– The energy consumption of LCDs with LED backlight is low, up to 40 % less than the classic LCD screen. These screens absorb less energy than light bulbs. However, it is necessary to learn about product sheets to assess the consumption of screens. It will be designated in watts for normal use but also in standby mode.
– With the high number of LED diodes, the uniformity of the backlight is more successful. The percentage of contrast considered on LED screens is almost the same with that of plasma screens. In addition, the image on the flat screen will appear more lively thanks to the evolution of the contrast and we will see deep blacks during dark sequences.
LED comparison with other flat screens technologies
First, compare the neon lights of standard LCDs with LED diodes of LED televisions. These are LCD screens of an unprecedented category. The 4 tubes located at the rear of the LCD slab are followed by LED diodes. They promise a more powerful backlight. However, a light change in accordance with the screen area can be caused by the use of tubes.
Now compare LED screens with plasma technology. The latter is really different from the LCD because it does not use liquid crystals but self -propelled gas cells allowing the lighting of several pixels (more than two million pixels) of the plasma slab. In contrast to the LCD, plasma does not need the backlight system connected to the slab. On the other hand, a plasma screen absorbs more energy compared to an LCD with LED backlight.
Finally, let us determine the differences between LED and OLED technology. OLED does not require backlight because it is from the organic matter that images form. In addition, it requires little material for the creation of a television and little energy for the issue of images. Red, green and blue diodes diffuse their own light, they constitute transformed sub-pixels. This technology is very advantageous for the creation of flexible screens with a contrast and a good category of original image. On the other hand, it is not yet available to large screens but only on the outskirts such as smartphones or MP3 / MP4 players.
- What is an interactive screen ? +
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- Quick information sharing
- Computer control
- Animated meetings
- Remote collaboration
- Less important consumption
- No more robustness
- The different types of screens
- Connected interactive screens
- Physical characteristics
- Interactive screens stylists
- Connectors and audio
- Display technologies –
- LCD technology
- LED technology
- Infrared technology
- Capacitive technology
- DVIT technology
- Inglass technology
- Size from 70 ’’ to 84 ’’ ’
- Size from 55 ’’ to 65 ’’ ’
- Size of 40 “to 50”
- Standard Vesa Standard Standard
- Norm Human Interface Device
- Benq
- Easypitch –
- Collaboration with Easypitch
- Education with Easypitch
- Jtouch
- Digieasel
- Mondopad
- Mimiostudio and Mimiomobile
- Activinspire
- Magiclwb software
- The Smart Kapp range
- Smart Room System
- Smart Notebook
- Smart Meeting Pro
- The formation continues
- Learning games
- Remote collaboration with interactive screens
- Sharing screens
- Brainstorming with interactive screens
- The interactive screen to detoxify you with PowerPoint presentations
- 4 visual collaboration solutions with the interactive screen –
- Iobeya: use, advantages and limits
- Yellow sensor: use, advantages and limits
- Miro: use, advantages and limits
- Microsoft Whiteboard: uses, advantages and limits
- Mobile supports and tilts
- Fixed supports
- Byod wepresent
- Byod mounting case
- Byod clickshare case
- Byod Quattropod case
- Byod easydongle case
- Byom Clickshare CX-30
- Easybyom
- Byom Visiolib
- Start with MS Whiteboard
- Start with MS OneNote
- Start with Word 365
- Videoconferencing system – Ideal solution for remote collaboration
- Plug & Play cameras for optimized videoconferences
- The automatic monitoring camera, an essential tool for successful videoconferences
Screen-interactive.Net offers you a wide range of interactive brand screens as different as software and types of screens offered. Interactivity through the tactile being an expansion area, screen-interactive.net stands out for its quality of service and variety of products. Indeed, you can find on the site interactive screens alone, or with an integrated computer of the digital paperboard type, or even connected interactive screens, at the cutting edge of interactive technology, such as the worldopad of the infocus brand.
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Everything about LED
Did you know ?
- LED comes from Light Emitting Diode (English). In French we speak rather of LED: electroluminescent diode.
- LEDs have been existing for over 100 years, they were discovered in 1907.
- An LED lamp can advantageously replace all types of existing lamps.
- Halogen lamps (70% of lamps purchased in France) will no longer be available for sale in 2018 .
- A good quality LED lamp has a lifespan up to 25 times higher than a traditional lamp.
- LED lamps are available in all colors.
- A good LED lamp heats much less than a traditional lamp.
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You have a project to light up a high premises ?
Direct LED now has a new range of highbay in the Industry series
From 70 to 200w they are more compact, more efficient and easier to install than traditional highbay.
Available in IP40 or IP65 they will be perfect for wet and dusty environments.
However, we continue to provide traditional highbay for specific applications.
Ask us, we will find you the best solution.
(Go through the form in the Contacts tab)
You have a big investment to make in LED lamp
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How to ensure your choice ?
Direct LED can provide you with variable color temperature panels from 2800 ° K to 6500 ° K !!
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Direct LED SARL ZONE SOMAG BAT C N ° 118 16 rue Ampère 95300 PONTOISE FRANCE +33 1 30 30 11 41 Skype: Rene.pug
Direct LED, specialist in LEDs lighting
Coming from the industrial test world in the automobile, space and aeronautics, the founders of Direct LED have put their skills at the service of LED lamp technology.
Faced with the explosion of the LED lamp market, many new entrants offer low -end and cheap equipment.
Direct LED, because of its target customers, has chosen quality at the best price “in order to avoid customers to invest in lost funds.Direct LED is positioned as a provider of clarification solutions specializing in LED lighting.
Our objective is to offer a minimum investment for the best clarity result.Direct LED, designer of lighting solutions, relies on 5 pillars:
Quality
Direct LED approves and tests all its products according to a very strict specifications.
This positioning allows us to satisfy a very demanding customers and to guarantee the greatest longevity and the best reliability.“We remember the quality much longer than the price ! »»
Price
Direct LED gets directly from factories that it has strictly selected.
The diversification of our sources of supply allows us to obtain the best prices.“The cheap is expensive ! »»
Range
- Eco : It’s a serie ECONOMIC intended for customers in the tertiary sector whose preponderant criterion is the PRICE. Equipment with a good level of quality (validated by Direct LED) at an economic price, these are our first prices.
- PRO : It’s a serie PROFESSIONAL intended for customers in the tertiary sector looking for the best quality/price ratio. Material with a higher quality level which justifies a higher price.
- Industrial : It’s a serie Industrial intended for manufacturers in search of the best RELIABILITY and the best PERFORMANCE. Equipment with a level of quality and “high -end” performance
“1 range for each need”
Advice
Direct LED has developed an original approach to design the illumination of your installation.
Good listening to your needs, our in -depth knowledge of the LEDs and the experience acquired during our achievements ensure total satisfaction.
Modeling and calculation software allow us to best refine our advice“He who likes to ask for advice, will grow up ! »»
Factory
After meeting 76 factories, we selected a dozen that met our quality and price criteria. We have been working with them for several years.
Their big production capacity (many make LED lamps for the biggest brands) assure us the best prices.
The daily relationships that we have with them and our frequent meetings on site allow us to guarantee that our specifications and quality controls are well respected.
Our design means and their production capacity have given birth to unpublished products.“Best costs but efficient”
Direct LED relies on a team
Before creating Direct LED, René, training engineer, exercised major responsibilities, in France and export, within international groups specializing in quality and endurance tests in the fields of aeronautics, space, Automobile and electronics.
Engineer in training optoelectronics, Sylvain has worked for many years in electronic developments in the automotive sector. He is in charge of quality, technique and development.
Delphine is in charge of the administrative management of the company.
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Everything about LED
Known of some initiates, only a few tens of months ago, the LED, is now part of our environment.
We find, on the LED lamp market, the best and the worst, hence the usefulness of knowing more about LED. This is the goal of this section.
These few notions will be useful to you to avoid falling into the most common traps.
You all know that there are good hunters and bad hunters !
Well for LEDs it’s the same !!
The most common questions asked to us are:
- How to choose your LED lamp ?
- Which technology to choose ?
- What to be careful ?
- What is the point of going to LED ?
- What does it bring me ?
- How much does it cost ?
- Is it reliable ?
- Are there any risks ?
- Is it really ecological ?
- Etc ……
Do you want to know more ?
If after reading the information below you had any questions, fill out the form in the Contact menu. We are committed to answering you.
A little history:
LED comes from Light Emitting Diode (English). In French we speak rather of LED: electroluminescent diode or CMS: component mounted on the surface.
The LED appellation is the most common even in France.LEDs have existed for over 100 years
1907: Henry Joseph Round discovers the first light show by a semiconductor.
1955: Rubin Braunstein discovers the infrared program of the Gallium (GAAS) and
other types of semiconductors.
1961: Bob Biard and Gary Pittman discover that Gallium arseniure emits infrared light when an electric current is applied to the semiconductor.
1962: Nick Holonyak Jr. and Sam Bevacqua of the General Electric Company (GE) create the first red light diodeUnlike other countries such as the United States, China, Germany, Italy, … France is slow to equip itself, but demand is now becoming exponential. We catch up.
The composition of an LED lamp
An LED lamp is mainly made up of 3 elements:
• The light source of different technologies and performance.
• the radiator which is in charge of dissipating the thermal energy released by the light source.
• The driver (or power supply) which transforms the current (alternative or continuous) necessary for the operation of the light source.The light source can be different technology:
PTH: Pin Through Hole
HPL: High Power LED
SMD: Mounted Device surface or CMS (component mounted on the surface)
COB: Chip on BoardThe technology will be chosen according to the sought -after light features.
• PTH, which have been designed for signaling, are still sold in merchant sites or some distributors with poor performance which contributes to conveying the false idea that LEDs do not light up . Direct LED has not selected this technology for lighting.
• HPLs will be chosen for light accentuations.
• SMDs are particularly suitable for a good light distribution.
• COB, the latest technology, will be preferred on strong powers with large lighting angles. Through lenses it is also possible to reduce the shedding angles.Direct LED only uses HPL, SMD or COB LEDs to guarantee customers quality and high performance lighting.
Direct LED only uses LEDs Hpl, SMD Or COB To guarantee customers quality and high performance lighting. Even in these 3 models of LEDs we only use products from the best world manufacturers.
THE Radiator is very important because it will depend on the cooling of the LED. Some poorly informed manufacturers think they are saving money by underdimensing the radiators with the consequence of a high rise in the operating temperature of the lamp and therefore a reduction in its lifespan.
In addition, extract the maximum heat from the heart of the LED preserves its optical performance as long as possible; It is an essential notion.
A good LED lamp does not heat up to more than 20 ° above the room temperature !!Direct LED tests in the laboratory This characteristic (among others) before deciding to integrate an LED source in its catalog.
THE Driver is the most sensitive element of a light light source. It is indeed “the weak link” in the quality chain of an LED lamp. A good driver is recognized by the measurement of the Cos Phi of a light source. The closer the cos phi, the more quality the driver, the more the LED lamp will have a long lifespan.
Direct LED chooses its drivers according to this criterion and whenever possible (integration problem) we choose our drivers from the 3 best manufacturers in the world.
You have understood, one LED lamp is not worth another LED lamp !
Analysis of a good LED lamp goes beyond appearances.
Compare 2 LED lamps with their appearance or power amounts to comparing 2 vehicles based on their displacement without taking into account performance, handling, reliability, results of crash tests etc … !Sustainable
Indeed a light source with good quality LEDs to a lifespan up to 25 times greater than a traditional lamp according to its technology.
For example :
A dichroic spot is given for 2000 hours against 30,000 to 50,000 hours for a LED spot
A halogen bulb is given for 1000 hours against 30,000 to 50,000 hours for a led bulb
A fluorescent tube is given for 6,000 to 8,000 hours against 50,000 to 80,000 hours for a LED tube
You will change your dichroic spot 15 times before changing your LED spot 1 time !
You will change your halogen bulb 30 times before changing your Bulb LED 1 time !
You will change your fluorescent tube 10 times before changing your LED tube 1 time !The cost of purchasing an LED lamp is more high than a traditional lamp
It’s true !
Should we stop at the concept of purchase cost ?
We used to replace a traditional lamp by considering that its cost is relatively low but first forgetting that its consumption is 4 to 10 times greater than that of an LED lamp and then that its lifespan is from 4 to 25 times lower than that of an LED lamp.
The cost of the electric KWH continuing to increase and similarly for the workouts, the concept of time of return on investment becomes preponderant.
As an example, in professional use (8h/d and 5d/SEM):
A fluorescent tube, which is already a very economical process, replaced by a LED tube will have a time of return on investment of around 2.5 years .
A dichroic spot replaced by an LED spot will have a time of return on investment of around 4 months !!
Given the exceptionally long lifespan of a quality LED lamp: 30,000 to more than 50,000 h (15 to over 20 years) go to LEDs is, by far, the most interesting financial operation that he either in terms of energy saving.
After the amortization of your purchase, all the savings are for you !!Reduction of your maintenance costs
Notable economy in maintenance costs (due to the lifespan and height installation conditions, etc.)
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