LED and LCD are often talked about on the field of display and lighting , then what is their working principal in the end,which will completely complained by this article.

LCD’s description:

English stands for LCD is Liquid Crystal Display,abbreviated called is LCD, Chinese name is called the LCD monitor. the structure of LCD is that the liquid crystal cell is placed between the two parallel glass substrates, the TFT(thin film transistor) is provided on the up glass substrate, the color filter is provided on the lower glass substrate , the signal of the TFT and the voltage is changed to control the direction of rotation of the liquid crystal molecules, so as to achieve that control whether each pixel of the polarized light is emitted or not to display. LCD has now become a mainstream alternative to CRT, as technology continues to improve, the prices of the LED have dropped a lot, and has fully been the popularity of the life of ordinary people.

LED and LCD are often talked about on the field of the display and lighting , then what is their working principal in the end , which will be explained by this article.

LED description:

English name of the LED is Light Emitting Diode, short called is LED, the light emitting diode is a light emitting element that is made of a semiconductor material, the element has two electrode terminals, the voltage is applied between the terminals, which leads to a small current through the combination of electron-hole,the residual energy can be released in the form of light excitation, namely the basic principle of the LED light-emitting. LED Can directly turn the electricity into light. It is the new technology that is the important breakthrough following the incandescent, fluorescent in the lighting history and the light source human which can directly convert the electrical energy into visible light-emitting, which is bound to replace the current lamps for all the mankind in future.

LCD is used as liquid crystal display ,but LED is in addition to applied in display industry,which is made from the LED chips to be widely used in lighting, because of the emitting characteristics of the semiconductor light-emitting diode , it is known as better energy saving features by comparison with traditional fluorescent lamps and energy-saving lamps and other lamps,Meanwhile,nowadays,the LED flood light and LED tube light is most widely used as the representatives of the decorative lighting and the home lighting in daily life,the LED tube light enjoys a great popularity in our corridor, restaurants, shopping, leisure and entertainment, galleries, exhibition halls and other indoor environments everywhere, the LED flood light is mainly used in city squares, parks, stadiums, the facades of large commercial buildings and hotel, stage, waiting rooms, airports etc. where the higher brightness is needed to illuminate,meanwhile,there a large number of factory engaging in developing and producing the LED light,Lead Lighting is just one of them,which adopts high brightness SMD as the light source of the LED tube and highly integrated and high brightness COB as the light source of the LED flood light so that fully guaranteed stabe and soft light of the LED tube light and octahedron breadth and brightness irradiation range of the LED flood light, while low voltage constant current driver ensure the AC can be converted into the DC to improve energy efficiency of the LED tube light and LED flood light and reduce the waste heat energy and stroboscopic effect exciting the human eye, the most important is that the LED lighting without adding mercury and other heavy metals harmful to our body and pollution the environment, that’s why the LED light is Known as energy-saving and environmental protection ,login http://www.ledclan.com to learn more features and uses of the LED tube light and surf www.lead-lighting.com to know more awesome LED floodlights and other LED lighting.

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Oznake: Liquid Crystal Display, LED flood light, LED tube light, TFT, CRT, light source, Chinese name, monitor