What are the new features of LCD displays compared to traditional displays?

- Mar 02, 2020-

High display quality


Since each point of the LCD display keeps that color and brightness after receiving the signal, it emits light constantly, instead of constantly refreshing the bright points like the cathode ray tube display (CRT). Therefore, the LCD display has high image quality and does not flicker, which minimizes eye fatigue.


No electromagnetic radiation


The display material of traditional displays is phosphor powder, which is displayed by the electron beam hitting the phosphor powder. The electron beam will generate strong electromagnetic radiation at the moment when it hits the phosphor powder, although many display products have been compared in dealing with radiation problems. Effective treatment to minimize the radiation as much as possible, but it is difficult to completely eliminate it. In contrast, LCD displays have an inherent advantage in preventing radiation because it does not have radiation at all. In terms of prevention of electromagnetic waves, the LCD display also has its own unique advantages. It uses strict sealing technology and a small amount of electromagnetic waves are enclosed in the display. In order to radiate heat, ordinary displays must let the internal circuits contact the air as much as possible The electromagnetic waves generated by the internal circuit will also “leak” to the outside.


Large visible area


For the same size display, the viewing area of the LCD display is larger. The viewing area of an LCD monitor is the same as its diagonal size. For cathode ray tube displays, there is a border of about one inch around the front panel of the picture tube, which cannot be used for display.


Picture effect is good


Compared with the traditional display, the LCD display uses a flat flat glass plate from the beginning. Its display effect is flat and right-angled, which makes people have a refreshing feeling. And LCD monitors are easier to achieve high resolution on small area screens. For example, a 17-inch LCD monitor can achieve a 1280 × 1024 resolution, while an 18-inch CRT color display usually uses a resolution of 1280 × 1024 or higher. The picture effect is not completely satisfactory.


Low power consumption


The interior of a traditional display is composed of many circuits. When these circuits drive a cathode ray picture tube to work, a large amount of power is consumed, and as the volume continues to increase, the power consumed by its internal circuits will certainly increase. In comparison, the power consumption of a LCD display is mainly consumed by its internal electrodes and driving IC, so the power consumption is also much smaller than that of a traditional display.