With the rapid development of LED display industry, outdoor LED display has become an indispensable tool for many businesses to promote marketing strategies. The LED display industry in Jinan is also developing like a mushroom. In recent years, it is not hard to find that almost all the shops along the street in Jinan have outdoor displays installed. However, what are the uses of these outdoor displays? It is not difficult to find that at present, there are many outdoor displays in Jinan that are literally “idle screens†that haven’t been used for a long time. Most of these reasons are due to problems with screens that are not maintained in time. In addition, LED display screens that are being used also have such display problems. The vast majority of them are "disease screens," which highlights the overall quality of the LED display market in Jinan . First of all, while the LED industry in Jinan is rapidly emerging, the price war in the industry is also growing. Plus, consumers are pursuing low prices and ignoring the quality of their products. The price gap between genuine high-quality LED products and general products is large. It is difficult for consumers to accept, thus creating a situation where inferior products are popular in Jinan market. Jinan Wanhui LED display These low-quality LED displays have poor stability, ranging from as little as two to three months, and as many as six months may cause problems. Second, the cost of outdoor display maintenance is high, many businesses are not perfect after-sales service, resulting in many consumers in the display after the problem of maintenance costs are too high, even more harm than good, so that Jinan LED display industry into a dilemma. Our company Jinan Wanhui Electronic Technology Co., Ltd. insists on giving top priority to the interests of consumers. The outdoor LED display supplied by our company will not cause major quality problems within two years, greatly reducing the cost of late-stage use and achieving New and old customers are highly recognized. In view of the above problems, LED manufacturers should be good quality products, not by cutting corners, shoddy to reduce manufacturing costs, forming a vicious cycle of LED display industry. Consumers should also rationally consume and try to choose brands that rely on quality. Jinan Wanhui professional supply Shandong display Jinan display Display module wholesale, quality assurance, cost-effective, trustworthy! Articles transferred from HDI PCB Specification
High density interconnect (HDI) PCBs represent one of the fastest-growing segments of the printed circuit board market. Because of its higher circuitry density, the HDI PCB design is able to incorporate finer lines and spaces, smaller vias and capture pads, and higher connection pad densities. A high density PCB features blind and buried vias and often contains microvias that are .006 in diameter or even less.
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Applications
HDI PCB is used to reduce size and weight, as well as to enhance electrical performance of the device. HDI PCB is the best alternative to high layer-count and expensive standard laminate or sequentially laminated boards. HDI incorporate blind and buried vias that help to save PCB real estate by allowing features and lines to be designed above or below them without making a connection. Many of today's fine pitch BGA and flip-chip component footprints do not allow for running traces between the BGA pads. Blind and buried vias will only connect layers requiring connections in that area.
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HDI PCBs are characterized by high-density attributes including laser microvias, fine lines and high performance thin materials. This increased density enables more functions per unit area. Higher technology HDI PCBs have multiple layers of copper filled stacked microvias (Advanced HDI PCBs) which creates a structure that enables even more complex interconnections. These very complex structures provide the necessary routing solutions for today's large pin-count chips utilized in mobile devices and other high technology products.
Blind and/or buried vias
Via-in-pad
Through vias from surface to surface
20 µm circuit geometries
30 µm dielectric layers
50 µm laser vias
125 µm bump pitch processing