Led Bright
by admin on Sunday, November 30th, 2008 | No Comments
To view the ad is 100 m² Assembly simply the result of smaller modules. Each module manufacturer of LED display sizes are and shapes (square or rectangular, 25 * 25 cm to 1 m * 1m). It is impossible, the best combination of size, since each has its advantages and disadvantages to define.
But, for example, a module 1qm (1m * 1m). In this case, if you build an LED indicator light square 35, has 35 modules, which meet in five rows of seven cells each. The modular LED screens to customize any installation (roof trusses, walls, ceilings, on stage, and) temporary structures for specific events. Allows easy maintenance and no limit on the shape, size and resolution.
While all the LED screen is the same size and same height in pixels has the same image quality, is not it? Unfortunately, no. There several factors that could cause the difference, including gamma correction. Gamma correction is an essential feature of the management of video, images each type of image to view television on the PC screen and an LED display. Gamma correction, control and management of the brightness and color image. If not done correctly, the figures appear, or solarization or too dark. But why?
In response, he is needed, a biological assessment: The reaction of the human eye to light stimuli is logarithmic. This means that the eye sees a flash of lightning and light flickering of star power. If the response to stimuli of light was linear, as with machines, people are not completely blind to a certain level of illumination and constant by the Enlightenment are too blinded by light.
Gamma correction is, therefore, correction exponential levels of color on which the chart is based PC and it is essential to adapt the logarithmic color to the human eye. Only with the correction gamma correction is possible to see pictures and videos completely natural. A perfect correction is often the result of years of research and experience, resulting in better image quality and greater color depth.
Clearly, the number of colors available also the image quality. In the market there are several manufacturers of LED display, each with its own technologies and products. Using a sample of 8-bit with technology support 256 levels of color for each of the three primary colors. In other words, they are 256 * 256 * 256 = 16.8 million colors capable of everything.
Demonstrating the use of a technology of 16 bits for each color on the screen of 65000 colors for each of the three primary colors can. This means that you 65000 * 65000 * 65000 = 275 billion The colors can be displayed in total.
Now, if the screen operates at the highest brightness to the human eye is not much difference between a screen 16 million colors and 275 million colors. The differences begin to be visible when the screen reduces glare in the works, for example, natural degradation and slow LEDs to reduce energy consumption.
To reduce the brightness of an image that will reduce the number of color levels displayed the screen to play their role, reducing the brightness is reduced by 50% the level of available colors from its 50% was good.
By allowing a range of 65,000 colors at a much higher quality and the natural, even the lowest levels of brightness. This high number of colors available is the representation of all colors perceivable by the human eye, even when the light is minimized.
There are many other factors can affect the image quality of LED screens. Here we have outlined the basics. We hope that will be useful.
About the Author:
Fabio Aversa is author of the FREE ebook on LED Walls "How To Make Money With Your LED Giant Screen In 7 Easy Steps" and of the very FIRST blog on LED Displays marketing tips. He is marketing manager at Euro Display, the leading manufacturer of LED Screens and LED Signs.
Article Source: ArticlesBase.com - The Biology Behind LED Screens Revealed
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LED Flashlight $12.32 4aa led flashlight 4 ?AA? 2 LED weather ready compact 75 hour LED flashlight Nonslip rubber grip Impact-resistant rubber head Slide switch Run time: 75 hours on 4 Energizer MAX alkaline batteries (included) Contains 2 bright white Nichia LED lamps Color: Red/black Requires 4 ?AA? alkaline batteries (included) Brand #: Energizer WRCLD41E UPC: 039800040077 Keywords: led flashlight compact 100hr |
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18-24 Inch Marineland Double Bright LED Light Fixture $99.99 Marineland LED Double Bright Lighting SystemLED Lighting Features: 17,000 Lifetime Hours Slim stylized lighting profile Illuminated by energy efficient LED's (75 Lumens per 1 watt LED) (6) 1W Daylight LED's Totaling 450 Lumens (3) Lunar LED LampsAdditional features: Three Mode On/Off Switch: Allows you to provide a variety of lighting profiles including daytime, lunar and off positions. Single Power Source: Low voltage power supply increases safety and peace of mind. Less cords, less clutter. Flexible Mounting System: Stylish yet adjustable mounting legs offer flexibility in tank sizes. Adjustable to fit tanks 18" to 24" wide. Polycarbonate Lens Shimmer Effect: Mimics underwater effect of sunlight |
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36-48 Inch Marineland Double Bright LED Light Fixture $179.99 Marineland LED Double Bright Lighting SystemLED Lighting Features: 17,000 Lifetime Hours Slim stylized lighting profile Illuminated by energy efficient LED's (75 Lumens per 1 watt LED) (16) 1W Daylight LED's Totaling 1,200 Lumens (8) Lunar LED LampsAdditional features: Three Mode On/Off Switch: Allows you to provide a variety of lighting profiles including daytime, lunar and off positions. Single Power Source: Low voltage power supply increases safety and peace of mind. Less cords, less clutter. Flexible Mounting System: Stylish yet adjustable mounting legs offer flexibility in tank sizes. Adjustable to fit tanks 36" to 48" wide. Polycarbonate Lens Shimmer Effect: Mimics underwater effect of sunlight |
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24-36 Inch Marineland Double Bright LED Light Fixture $129.99 Marineland LED Double Bright Lighting SystemLED Lighting Features: 17,000 Lifetime Hours Slim stylized lighting profile Illuminated by energy efficient LED's (75 Lumens per 1 watt LED) (8) 1W Daylight LED's Totaling 600 Lumens (4) Lunar LED LampsAdditional features: Three Mode On/Off Switch: Allows you to provide a variety of lighting profiles including daytime, lunar and off positions. Single Power Source: Low voltage power supply increases safety and peace of mind. Less cords, less clutter. Flexible Mounting System: Stylish yet adjustable mounting legs offer flexibility in tank sizes. Adjustable to fit tanks 24" to 36" wide. Polycarbonate Lens Shimmer Effect: Mimics underwater effect of sunlight |
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LED Bulb $10.99 1.5w ww flamtip led bulb Heat-free technology Lights up faster Mercury-free 40W equivalent Brand #: Lights of America 2025LED-30K UPC: 755277202571 Keywords: led bulb 1.5w 40w equiv bright white ref mercury free candelabra |
