ABC of Spain 2 / The “idiot box” is getting smarter instead. Internet has come to change everything. Televisions are living in a context of change, thanks to new materials and higher resolutions (most advanced is the Ultra HD or 4K). But the market is large and each manufacturer works with its own technology, forcing the consumer to be aware of the news of the latest technologies.
The king of the appliance is in a golden age. With their differences and similarities, when we see what LED, OLED, LCD, CRT wonder, sometimes, what will be and whether it is better or worse than another model. Each technology has its own benefits.
Plasma: quality minority technology such televisions, large format usually consists of two crystals inside is a series of tiny cells located between two glass panels containing a mixture noble gases. When stimulated by electricity becomes called “plasma”, which is a fluorescent substance capable of emitting light.
In its favor is the great image quality, both in darkness and brightness, especially conceived for the screening of film content. Thus, the black level and the contrast is higher than the rest. Furthermore, the speed of issuance of the images is faster than the other
LCD. LCD TVs tradition evolved (Liquid Crystal Display) devices are thin compared with those monsters CRTs who were in the halls a few years ago. Consists of color or monochrome pixels placed on a light source, allowing light and reproduce the different colors at the time of image projection.
Here, each individual pixel is divided into three cells (called dots) of three colors (red, green and blue), respectively, for the increase of the filters. Each subpixel, in turn, can be controlled independently to achieve thousands or millions of possible colors for each pixel. In its favor is its large size in the market, but nevertheless, in large formats can cause loss of image quality. The contrast and brightness is affected by the reflection of the sun, and this is another drawback.
LED: extended and balanced You could say that all LED TVs are LCD. Unlike the previous, what changes is its built-backlight system. The LED panels represent an evolution of the above type. It is a LCD with a rear panel of LEDs as opposed to conventional CCFL LCD TVs. In addition, construction reduces its thickness and features bright colors and good contrast, even bordering absolute black.
Therefore, in the light output is winning these types would rise. Another advantage is durability, as they are reliable products whose life cycle is estimated very wide, and the possibility to improve the resolutions and aspect that increasingly thinks. Power consumption
OLED: innovation and quality This type of panels, organic, can lose weight to a minimum thickness. Operate using organic light emitting diodes (Organic Light-Emitting Diode) and are capable of emitting light autonomously. This feature distinguishes it from the LEDs used to illuminate the panel of the TV. In its favor is the quality level to produce the images, very natural. Thus, brightness, contrast, speed projection and viewing angle are well made. Yes, their prices, but have been reduced considerably in the last year, is too high compared to the rest.
This technology has opened the door to flexible and ultrathin models, which arrive in the coming years. One of its major drawbacks is its real autonomy, since the durability of these panels, for materials used by manufacturers, greatly reducing their lifespan compared with other panels. In fact, excessive moisture can play a trick.
Information ABC of Spain 2
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