The TV panel showed a slight oversupply situation in the first quarter;
According to Sigmaintell, demand in the TV market is expected to gradually recover as the global economy continues to improve and costs are reduced, thus driving supply and demand to balance.
Due to the off-season in the first quarter and the rapid adjustment of the capacity allocation strategy by panel makers, the supply-demand ratio of global TV panels in the first quarter of this year was 6.2%, showing a slight oversupply.
Qunzhi Consulting said that the actual production capacity of global LCD TV panels in the first quarter of 2018 decreased by 2% from the previous quarter, and the supply volume was approximately 66.27 million, down 7.7% from the previous quarter.
Among them, the price decline of 32 and 65 ç•¥ is slightly expanded, so the supply and demand balance is 55 in the first quarter, and the supply and demand surplus of other sizes is excessive, especially the potential risks of 32 and 65 åŠ å¤§ are increased. The price decline is expected to increase slightly.
32å‹ Due to the sales target of China brand and the delay in export demand, demand remained strong until the fourth quarter of 2017, but the demand for 32å‹ in the first quarter dropped sharply from the previous quarter, while the supply side had relatively good profit. Plus 32% of production capacity has not been significantly reduced.
Therefore, Qunzhi expects that the supply/demand ratio of 32å‹ in the first quarter is 6.7%, and the supply and demand surplus is excessive. Previously, because the 32-inch panel price was relatively stable, the price difference with the 40-inch size segment was narrowed, resulting in further expansion of potential risks. It is expected that the first quarter will be late. The price decline has widened.
As for the 40~43 size segment, the demand for exporting stocks decreased and the size structure of the demand side was adjusted. The demand for stocking in the first quarter weakened, and the panel side actively adjusted the production capacity to control the supply of 43å‹. The overall supply-demand ratio was 6%. Loose, the price showed a slight downward trend.
48~50 size segment, 49 and 50 baht price long-term upside down to stimulate demand to shift to 50 ,, the first quarter 49 å‹ will face greater pressure, while 50 å‹ current inventory is still high, but the panel factory through positive price stimulation As well as capacity adjustment, the inventory showed a sharp decline, and the pressure gradually eased.
In the first quarter of this size segment, supply and demand are still excessive, prices continue to fall, but the price difference between 49 and 50 will gradually shrink.
On the 55th side, 55å‹ stocking demand remained strong, with supply and demand balance in the first quarter and stable prices.
In the large-size segment, although TV manufacturers have high hopes for 65-inch, the terminal market sales are still not as expected, the demand for stocking is slowly increasing, panel makers continue to actively increase the proportion of 65-inch capacity, and BOE's 10.5-generation line is about to be mass-produced. , to provide more room for growth in the 65-inch panel supply.
Qunzhi Consulting expects that the supply/demand ratio of the 65-inch panel in the first quarter will be 6.8%. The supply and demand will remain excessive and the panel prices will maintain a significant decline.
. American scholars use white graphene interlayer to greatly enhance the ductility and strength of ceramic materials.
As a material to be applied, the main disadvantage of ceramics is that they are easily broken under high pressure or high strain, but a study by Rice University just overcomes this limitation and improves ductility and toughness. Strength performance.
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Phys.org reports that the study has been published in the journal ACS Applied Materials and Interfaces published by the American Chemical Society.
Research author Rouzbeh Shahsavari, assistant professor of civil and environmental engineering at Rice University, pointed out that the addition of ultra-thin hexagonal boron nitride (hBN) between two layers of calcium silicate would form an interesting two-layer crystal with The special nature of the versatility makes it a durable, heat-resistant, radiation-resistant ceramic material.
According to Shahsavari's calculations, the calcium silicate inserted into the two-dimensional hBN layer will be very strong and can even be used as a shield for nuclear applications such as power plants. In addition to the nuclear industry, this material can also be used in construction, crude oil, natural gas, Aerospace and other areas where refractory or high performance composites are required.
Since the shape of the two-dimensional hBN is hexagonal and interconnected to form an ultra-thin plane, it looks very similar to graphene, so it is also called "white graphene"; but unlike graphene, the main composition of hBN is not carbon. The atom is composed of alternating boron and nitrogen.
Traditionally used for reinforcement fillers and host materials are often loosely connected, but hBN placed between double-layered calcium silicates is part of the overall system, Shahsavari believes that this study shows minimal The adjustment is possible for the reinforcement of ceramic materials.
The ceramic form used by the team was mainly "tobermorite". In order to understand the difference with the original materials, the team also conducted a practical test on the horizontal stack of tobermorite and the model inserted into hBN. The results show that the composite is 3 times stronger and 25% stronger than the original tobermorite.
When the material is compressed, the generally horizontally stacked tobermorite exhibits a yield strength of about 10 GPa, a yield strain of 7%, and the composite exhibits a 25 GPa drop strength and 20%. The stress of the fall.
According to Shahsavari, two-dimensional materials such as hBN are double-sided compared to common one-dimensional fillers such as fibers and carbon nanotubes (CNTs), so the surface area per unit mass is also doubled, "for adhesion to surrounding substrates and The reinforcement effect is perfect."
According to Shahsavari, for the bottom-up design of high-performance ceramics and other multifunctional composites, other two-dimensional materials such as molybdenum disulfide, niobium diselenide and layered double hydroxide ( LDH) may also be applicable. Technews
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