Color Led Case
Color Led Case
The Truth About Pure Black And Other Features Of Your LED Screen
In the past we discussed some basic information about LED technology. So just to summarize in case you missed anything, here's a brief recap:
* LED = a semi-conductor that emits light
* Pixel = the basic luminous dot, which can contain one or more LEDs
* Pitch = the distance between pixels, expressed in millimetres
* Pure white = the perfect balance of red, green, and blue
* Minimum Viewing Distance (MVD) = the closest you can get before image appears pixelated. The type of screen, as well as the type of content displayed, plays a role here.
* LED screen = smaller modules (from 4*4cm to over 1*1m) assembled together
* Colors available = up to 280 trillion (65,000 * 65,000 * 65,000).
* Gamma correction = the exponential correction needed to adapt colors to the logarithmic vision of the human eyes
Now let's take a deeper look into further features that define the quality of an LED screen. We mentioned several times the importance of having a pure white (the perfect balance of red, green, and blue) in order to have the highest image quality. Now lets see the importance of having pure black.
How do you obtain a pure black on an LED screen? Well, you do it by turning off all the LEDs. Pretty easy, huh? Actually, no. The biggest problem in obtaining pure black with an LED display is the fact that you do not use LEDs to get the black. In fact, if all the LEDs are switched off, you can't rely on your advanced electronic control system.
So how do you do that? You ask the mechanical engineer - incredible, but true. Obtaining pure black is a question of mechanical structure of the LED screen. Indeed, pure black entirely depends on how dark the surface can get when the screen is turned off.
Trust me, it's not easy. The main complication is that such a wide surface will always have a reflection factor, meaning that, if you are not careful, you might end up with a huge black mirror when you turn off the screen. That's why the frontal design of the LED walls is so important, because it must be dark without being flat and reflective as a mirror.
Why, exactly, is pure black so important? Because it defines the contrast levels of the LED screen. The contrast level is the difference between the light emitted by the display and the environmental light reflected by the screen's surface. Minor is the light reflected, higher is the contrast and, therefore, the color depth and the naturalness of the images.
To increase the contrast level, professional LED screen manufacturers provide particular anti-reflex flyers that split the light and don't reflect it, increasing the visibility of the screen even in direct sunlight. The contrast level of a LED display is a fundamental factor to take into consideration, especially during huge events broadcast via television.
What should you be aware of when broadcasting an live event on your LED screen? First of all, the LED wall refresh rate. The refresh rate indicates the number of times that the image refreshes every second. For example, a PC monitor has a refresh rate of 72Hz and, therefore, refreshes all the pixels of the screen, from top to bottom, 72 times every second. To provide a comparison, most TV monitors have a refresh rate of 50Hz and only few products of the last generation have a 100Hz refresh rate.
Professional LED screens have a minimum refresh rate of 240Hz, which is almost triple of that of most advanced TV monitors. The refresh rate is fundamental, because it determines the image's quality: if it is too low, the LED screen would display a flickering image when recorded by a professional camera. Some manufacturers offer a refresh rate as high as 2000Hz to meet the demands of the broadcast industry, especially important for events with rapid camera movements and HD format.
Secondly, be aware of brightness levels. Depending on the location, you might have different needs for brightness. Outdoor events will obviously require an incredibly high brightness to contrast the sunlight. However, if the event is indoors, you must have a lower brightness in order to avoid solarization. To provide you with a practical example, an average frontal brightness is 2,000 to 3,000 NITs for indoor use and up to 5,000 to 6,000 NITs for outdoor use LED screen.
About the Author
Get the FREE ebook specifically for LED Screens Buyers by Fabio Aversa. He is a recognized LED Displays specialist and marketing manager for Euro Display, a leading LED Screens manufacturer and supplier company.
 |
 4 Pin LED PC Computer Case 4 color Fans Cooler H $3.45 Time Remaining: 23d 8h 11m Buy It Now for only: $3.45 |
 HOT 120mm 12CM 4 Pin LED PC Computer Case 4 color Fans Cooler New M $3.48 Time Remaining: 22d 8h 11m Buy It Now for only: $3.48 |
 New 120x120x25 mm 4 Pin LED 4 color Cooling Cooler computer Case Fan DC 12V P $3.28 Time Remaining: 25d 3h 28m Buy It Now for only: $3.28 |
 |
Gerson 22997 4 Pieces Set Color Changing Everlasting Tealight LED- Case of 24
List Price:  |
DescriptionGreat for indoor/outdoor use. Flame Free, Smoke Free, Worry Free. Over 120 hours of continuous use. Case Size: 12 . Bulb Type: LED. Color/Finish: Clam shell. Action: Color Changing. |
 |
Gerson 37853 Set of 4 Dual Function Yellow Led Or Color Changing Flameless Led Tealights- Case of 12
List Price: |
DescriptionSet of 4. White Color. 1 Style. Cr2032 Battery Included. Packed In: Blister Card. Satisfaction ensured. Manufactured to the highest quality available. |
 |
Fulcrum 3 LED 3-Pack Tap Lights
List Price: |
DescriptionFulcrum 3 Pack Stick On Light - Fulcrum 30010-301. |
 |
Sylvania 15172 65-Watt 130-Volt BR30 Indoor Flood Light, 6 Pack
List Price: |
 |
Petzl E97 Tikka Plus 2 Headlamp
List Price: |
DescriptionFor total lighting versatility in any conditions or situation, the Petzl Tikka Plus 2 Headlamp features one superbright white LED, one red LED, and five different light settings. Two white brightness settings, a continuous red, and a flash mode in each color prepare you for any illumination needs you might have in the backcountry, and the headlamp is compatible with PetzlAAAs ADAPT system (sold separately), which lets you detach the headlamp casing and attach it to a helmet, backpack, or jacket... |
 |
Complete Rock Case Studies
List Price: |
DescriptionLED ZEPPELIN:COMPLETE ROCK CASE STUDI - DVD Movie |
 |
Full Spectrum Light Bulb - ALZO 27W Compact Fluorescent - Case of 4 - Daylight Balanced 5500K - Pure White Light
Sale Price: $25.06 |
DescriptionCase of 4 full spectrum light bulbs that imitate daylight, are energy star compliant, and have a long life at circa 10,000 hours with 1300 Lumens output; low energy consumption, good for treating Seasonal Affective Disorder S... |
 |
Cooler Master Computer Case Cooling R4-L2R-20AC-GP
List Price: |
DescriptionCoolerMaster Long Life LED Case Fan R4-L2R-20AC-GP Computer Case Components |
 |
Lexar JumpDrive TwistTurn 32 GB USB 2.0 Flash Drive LJDTT32GASBNA (Gray)
List Price: |
DescriptionLexar 32GB JumpDrive TwistTurn USB 2.0 Flash Drive LJDTT32GASBNA USB Flash Drives |
 |
Logitech V220 Cordless Optical Mouse for Notebooks (Dark Silver)
List Price: |
DescriptionWireless - Optical - Mouse - 1 x Scroll/Tilt Wheel - USB |
|
|
APEVIA CF12SL-4C Multi-Color LED Case Fan $7.99 Light up your inner harlequin with the Apevia CF12SL-4CR. This crystal clear fan has 4 LEDs in different colors. It moves 63.85CFM while spinning at 1700RPM. RPM: 1700 ±10% RPM Air Flow: 63.85 CFM Noise Level: 29.67 dBA Power Connector: 4 Pin Color: Transparent Compatibility: Case Dimensions: 120 x 120 x 25mm Features: Highly transparent crystal fan 4* multi color super bright LED lights Ultra quiet and powerful |
|
|
APEVIA CF4SL-4C Multi-Color LED Case Fan $5.49 Add some color and quiet cooling to your desktop PC with the Apevia CF4SL-4C 80mm four-color LED case fan. Spinning at a low 22.05dBA at 2,000rpm, the fan can be used to pull cool air into your system or push hot air out. Either way, the result is a lower overall operating temperature with very little added noise. Four LEDs are built into the frame of the fan (red, blue, green and orange) adding a splash of color to your case's interior and is a perfect addition if you have a clear side panel. The fan's crystal-clear transparent plastic allows the brilliance of the LEDs to really shine. Simply install the fan, connect it to your power supply's standard 4-pin connector and it’s ready to go. RPM: 2000 ±10% RPM Air Flow: 25.64 CFM Noise Level: 22.05 dBA Power Connector: 4 Pin Color: Transparent Compatibility: Case Dimensions: 80 x 80 x 25mm Features: Highly transparent 8cm crystal fan multi color super bright LED lights Ultra quiet and powerful |
|
|
Nexus LED D12SL-12BL Blue LED Case Fan $13.99 RPM: 1000 RPM (+/-10%) Air Flow: 36.87CFM / (62.61m3/hour) Noise Level: 18 dBA Color: Transparent Compatibility: Case Dimensions: 120 x 120 x 25mm Features: with 4 blue LED's |
|
|
Nexus LED D12SL-12WL White LED Case Fan $13.99 RPM: 1000 RPM (+/-10%) Air Flow: 36.87CFM / (62.61m3/hour) Noise Level: 18 dBA Color: Transparent Compatibility: Case Dimensions: 120 x 120 x 25mm Features: with 4 white LED's |
|
|
Deluxe Barnes & Noble Nook COLOR Leather Case/ LED Light $9.99 Included items:Faux-leather CaseLED Travel Book LightCompatibility:Barnes & Noble Nook ColorFaux-leather Case Book-style CaseAdd style, design and protection for your reading deviceProtects from minor bumps scratches and bruisesCut-out holes making all plugs/ports usableEasy to put on and removeColor: PinkMaterial: Synthetic LeatherLED Travel Book Light Made with high quality durable plastic LED attached to an adjustable gooseneck so light goes where you want itRead your books on the go without disturbing people around youClips onto any book, eBook reader, or thin surfaceColor: White Power: 3 x 'AAA' batteries (Not Included) |
|
|
TriCool Blue LED Case Fan $14.94 Brighten Up Your Lifestyle. Three speed 120mm TriCool LED fans keep your system at maximum cool while spotlighting your case with vibrant Blue color. More reasons to show off your system to the world. |
|
|
APEVIA CF4SL-UBL-LED Blue LED Case Fan $6.49 Add some color and quiet cooling to your desktop PC with the Apevia CF4SL-UBL-LED 80mm blue LED case fan. Spinning at a low 22.05dBA at 2,000rpm, the fan can be used to pull cool air into your system or push hot air out. Either way, the result is a lower overall operating temperature with very little added noise. Four blue LEDs are built into the frame of the fan adding a splash of color to your case's interior and is a perfect addition if you have a clear side panel. The fan is also made from UV-reactive plastic to add even more brilliance to your PC. Simply install the fan, connect it to your power supply's standard 4-pin connector and it's ready to go. RPM: 2000 ±10% RPM Air Flow: 25.64 CFM Noise Level: 22.05 dBA Power Connector: 4 Pin Color: Blue Compatibility: Case Dimensions: 80 x 80 x 25mm Parts: 1 year |
|
|
Lighting LED Color Wash $129.95 Lighting LED Color Wash |
|
|
Gerson 22997 4 Pieces Set Color Changing Everlasting Tealight LED Case of 24 $109.35 Great for indoor/outdoor use. Flame Free Smoke Free Worry Free. Over 120 hours of continuous use. Case Size: 12 . Bulb Type: LED. Color/Finish: Clam shell. Action: Color Changing. |
|
|
APEVIA CF8SL-B4C Multi-Color LED Case Fan w/Grill $5.99 Improve cooling and airflow to your case/system with this Apevia 80mm multi-color LED fan. The LEDs illuminate the entire fan and create an amazing effect. It offers incredible cooling to increase the longevity and stability of the system and components. Meanwhile, it adds glamor and character to your PC. Has seven UV-reactive blades and a black frame. The fan comes with a black fan grill for protection. RPM: 1500 ± 15% RPM Air Flow: 17.21 CFM Noise Level: Power Connector: 4pin+3pin Color: Transparent Compatibility: Case Dimensions: 80 x 80 x 25 mm Features: Seven UV-reactive blades and black frame Can plug into motherboard or power supply Material: UV reactive PU plastic Air Power: 12 VDC Operation Voltage Range: 7 VDC ~ 13.5 VDC Start-up Voltage: 7 VDC Rated Voltage: 12 VDC Rated Current: 0.17 A Lock Rotor Current: 0.07 A Static Air Pressure: 0.88mm-H2O Life Expectation: 25,000 hours |
|
|
Kingwin CFY-012LB Yellow LED Case Fan $10.99 The Kingwin CFY-012LB case fan features a long-life bearing and comes with a yellow LED. This case fan measures 120mm x 120mm and includes a 3/4 pin connector.Special high profile fan blades for maximum air flowDesign for up to 100,000 hrs life expectancyColor: Yellow LEDInterface: 3 Pin/4 pin connectorModel: CFY-012LBIncluded items: Yellow LED case fanDimensions: 120 mm x 120 mm |
|
|
EVERCOOL FAN-LD9225B-EC2 Blue LED Case Fan $6.49 RPM: 2300±10% RPM Air Flow: 31.62 CFM Noise Level: 26 dBA Color: Transparent Compatibility: Case Dimensions: 90 x 90 x 25mm Features: Soundless, Big Volume Of Air Flow Exclusive LED flash design by EVERCOOL |
|
|
1ST PC CORP. FN-250-ML Multi-Color LED Case Fan $23.99 RPM: 820 RPM Air Flow: 105 CFM Noise Level: 20 dBA Power Connector: 4 Pin Compatibility: Case Dimensions: 250 x 250 x 30mm |
|
|
Link Depot FAN-4LED-80BU Blue LED Case Fan $4.99 Bearing Type: Sleeve Air Flow: 29.5 CFM Noise Level: 27.0 dBA Power Connector: 3 / 4 Pin Color: Transparent Compatibility: Case Dimensions: 80 x 80 x 25 mm Features: 4 Blue LED Sleeve Bearing Crystal Fan 4 LED design, very bright Quiet, Noise level 27.0 dBA Maximum Air Flow 29.5 CFM Long Fan Life. 30,000 hrs Includes 3 to 4 pin adapter and fan screws |
|
|
XCLIO 256 Color Fan - 25cm 256 colors LED Case Fan $24.99 Bearing Type: Sleeve RPM: 400~800RPM±10% Air Flow: 47.95~95.90CFM Compatibility: Case Dimensions: 250 x 250 x 30mm Features: Static Pressure: 1.35~2.70mm-H2O Life: 30,000 hours Rotating Direction: Counterclockwise Material: PC Gross |