&

What are the types of LCD large screen display technologies

Author：admin / Publication time：2022-11-03

The Asian Games, Olympic Games, Ping An City, and Smart City have promoted the growth of market demand for large-sized and large image displays. On the premise that a single display screen cannot meet the requirementsDLPLCD splicing,PDPandLEDLarge screen display technology has emerged. Next, the Innovation Dimension editor analyzes: LCD splicing,DLP，PDPandLEDThe characteristics of large screen display.

1.DLPBack throw patchwork

DLPAs a technological veteran in the large screen display industry, with the advantages of seamless splicing effect, large screen, high image quality, etc., it firmly occupies the majority of the market share and profit in the field of large screen splicing.DLPWe cannot be carefree either. In recent years, ultra narrow seam LCD splicing products and small spacingLEDThe launch of the screen,DLPThe advantage is also weakening. according to2013Annual statistics,DLPAlthough the technology has mastered the vast majority of profits in the field of large screen splicing, its sales are far lower than new technologies such as LCD splicing. This means that in the futureDLPNew technologies represented by LCD splicing will have to abandon some large screen markets. However, there is no need to be pessimistic, at least in the short term,DLPTechnology will still firmly grasp areas such as the meteorological bureau that have very strict requirements for image quality.

2.LCD splicing screen

As a latecomer in the large screen splicing industry, LCD splicing can be said to be a true rising star. With advantages such as high definition, high brightness, high color saturation, flexible splicing methods, environmental protection, long service life, and low operation and maintenance costs, it quickly gained nearly a quarter of the market share in the large screen splicing market in just a few years. However, LCD splicing has a fatal and serious damage, which is the irreparable joint. This has become a huge obstacle to the promotion of LCD splicing in the past. However, with the continuous launch of new products, the physical joints of LCD splicing are becoming smaller and the sense of hierarchy in images is constantly improving, making the advantages of LCD splicing in terms of price, flexibility, and other aspects more obvious, becoming a true advantage in the field of large screen splicingA dark horse. Prediction display, to2019In the year, the market share of LCD splicing will increase from26%Ascend to50%This will be erodedDLPSome markets have become their strong competitors.

3. PDPPlasma splicing

PDPIt is a display technology that utilizes gas discharge, and its working principle is very similar to fluorescent lamps. It uses plasma tubes as light-emitting elements, and each plasma tube on the screen corresponds to a pixel. The screen is made of glass as the substrate, with a certain distance between the substrates to generate a discharge space. The discharge space is filled with a mixture of rare gases such as neon lights and xenon gas as the working medium, and the inner surfaces of the two glass substrates are coated with metal oxide conductive films as encouragement electrodes. When the voltage is increased to the electrode, the mixture in the discharge space will undergo plasma discharge phenomenon, also known as plasma effect. Plasma discharge generates ultraviolet rays, which excite display screens coated with red, green, and blue fluorescent powders, emitting visible light and displaying images.

4. Small spacingLEDscreen

Moreover, there is another role in the competition in the field of large screen splicing in the future, which is toLEDdisplay. In people's impression,LEDThe screen display is not precise enough and the cost is high, so it is mainly used for outdoor advertising display. However, with the development of technology, small spacingLEDDeveloped. The reduction of pixel spacing promotesLEDThe precision of the screen image is greatly improved, and the graininess is reduced. Considering its excellent environmental performance, long lifespan, and large screen display, it has also been applied in indoor display fields such as television stations in recent years. Breaking free from the limitations of the outdoor field, it can only be used for low image requirements and then fully expanded to the indoor field.