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Company News >> What is the lcd display backlight? 17th,Oct,2018

The liquid crystal itself does not emit light, and it is like an advertising light box that is illuminated by the backlight box at the back. The paper with the picture is not illuminated. The glass screen of the LCD is equivalent to the drawing, but the figure is variable. LCD does not actively emit light like a CRT. It can only change the transparency. Therefore, the backlight is added at the back, and the transparency is different, so that different images can be displayed. Commonly used backlights are LEDs, incandescent lamps (common), fluorescent tubes, and the like.

LCD is the abbreviation of Liquid Crystal Display in English, which is a digital display technology. It can filter light source through liquid crystal and color filter to produce image on flat panel. Compared with the traditional cathode ray tube (CRT), the LCD has a small footprint, low power consumption, low radiation, no flicker, and reduced visual fatigue. Insufficient: The price is more expensive than the same size CRT.

After years of leading the notebook market, smooth display screens based on liquid crystal display technology are gradually entering the desktop market. LCD has many advantages that traditional CRT display technology does not have, can provide a clearer text display, and the screen is flicker-free, which can effectively reduce the visual fatigue caused by watching the screen for a long time. The thickness of the lcd display is generally less than 10 inches, so if the desktop system uses LCD technology, it will save more space. Although the LCD display has its own unique features, it is undeniable that LCDs still have shortcomings in high-quality color display compared to the main competitor CRT displays. In addition, the disparity in price makes the LCD still only A luxury product enjoyed by a few people.