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Technology LCD
by Tam

In recent years, there has been an explosion of different advances in technology for television, creating better and larger screens and qualities of signal for the average consumer. The downside of all this is that we are constantly bombarded with all kinds of terms and confusing names for the multitude of options that we face when we are looking for a new TV. We will look then carefully the term, LCD, and explain exactly what it means and how it works. First of all, LCD Liquid Crystal Display (LCD English) comes. Liquid crystals are unusual objects as they exist in half between a liquid and a solid. In this way, they are able to move and change as a liquid molecular orientation, while remaining as independent objects as solids do. The crystals are transformed from its solid state to liquid by applying heat on them.

Much heat, and will become fully liquid; not enough heat and remain solid. For this reason LCD TVs, as well as for computer LCD monitors tend to be sensitive to heat and have problems to work well at temperatures extremely high or low. In an LCD TV, liquid crystals are hosted between two sheets of polarized glass, placed at an angle of 90 degrees each other. Microscopic undulations are cut within the glass complies with the direction of polarization. Liquid crystals used in LCD TVs are called Twisted Nematics. Nematic means that they are oriented in a different pattern and are twisted (twisted), but right when they are exposed to an electrical current. Liquid crystals are twisted by the ripples in the glass, forming a spiral pattern when the last glass is located 90 degrees from the first. The light projected from behind the glass is driven through the glass until it shines through the front of the screen.

However when the crystals are straightened by an electric current crystals are aligned in opposition to the polarization of the front glass, blocking light and not allowing it to pass. The precise degree of straightening determines how much light reaches your eye, which creates a gray scale screen. When a Crystal is aligned with polarized glass, you see white; If it is partially straightened, that pixel is to be displayed as a shade of gray; If it is completely locked, it will be black. Screens typically offer 256 shades as the possible variations that a display can be projected. Rows and columns of tiny transistors and capacitors make a matrix of pixels, each with three sub-pixels that have red, blue and green filters. When correct row and column are struck by a load, and the correct subpixel is lit, the crystals twist to be aligned at a right angle to create the shade of the color you need. More pixels have their screen, the image will be more detailed. This is what is referred to as resolution. Latest screens Today they offer 1080p resolution, which means that there are 1080 lines of pixels per frame on your screen.

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September 30th

10:26
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