Although there are currently many screen panel technologies. TFT LCD continues to be one of does technology work the most used in many displays. In addition, it is the basis for many other variants. So it is interesting to know how it works and what this type of display technology is. A TFT LCD screen (Thin Film Transistor – Liquid Crystal Display), or a thin film transistor liquid crystal display, is a display technology that is most popular today, both for small screens of all types of devices to large screens. of televisions. The TFT type transistor is a type of semiconductor that is to improve efficiency, reduce cost and offer a more compact size compared to CRTs . TFT LCD screens are active matrix screens that control the pixels individually, although the lighting is done together.
TFT LCD structure
The TFT LCD screen is built with three fundamental layers . These layers are in the form of glass substrates and another with an RGB (Green Blue) color filter. The layer between the two glass is liquid crystal. The TFT glass substrate Malaysia Phone Number Data layer is the deepest or rearmost layer of a device’s circuit board. It is made of amorphous silicon, a type of silicon with a non-crystalline structure. In this way, by controlling the voltage, you can control the colors in each pixel. The outer sides of glass substrates have filter layers polarizers . These filters let only certain beams of light through if they are in a specific way. If not polarized correctly, light does not pass through the polarizer, creating a dull LCD screen. Between the two substrate layers are liquid crystals . Together, liquid crystal molecules can behave like a liquid in terms of movement, but maintain their structure as a solid crystal. There are a variety of chemical formulations available for use in this coating. Typically, liquid crystals are to position molecules in a certain way to induce specific light-passing.
TFT single pixel architecture
Finally, I would like to add that within a TFT LCD screen, each pixel can be characteriz by its three subpixels . These three subpixels create the RGB coloration of that general pixel, that is, green or blue, or a combination of these primary Belize Phone Number colors to generate the rest of the colors and shades. When all colors are shown at once it corresponds to white light. Using filters and polarization, different types of brightness will be achiev depending on the alignment of the liquid crystal. These subpixels act as capacitors or electrical storage units within a device, each with their own independent structural and functional layers, as describ above. Thus, when the graphics processor sends the information of a frame, it can be captur by controlling all the elements of the screen as it should.
