The hottest tablet intelligent machine has become

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Tablets and smartphones have become the main force of small and medium-sized panel shipments. Npddisplaysearch, a market research institution, estimates that the global smart market shipments in 2013 will exceed 930million, and there will be a market volume of 250million tablets. The huge market momentum attracts panel manufacturers to invest more resources in this small and medium-sized application market. DisplaySearch defines small and medium-sized panels as less than 9 inches

according to the latest DisplaySearch report (2013smartphoneandtabletpcpfpdprodproductroadmapreport), the shipments of smart and tablet computers accounted for about 540million pieces of all small and medium-sized panels in 2011, accounting for 27% of all small and medium-sized panel shipments; However, with the vigorous development of the market, the two hottest panel shipments of smart and tablet computers in 2013 are expected to reach 1.3 billion, accounting for 55% of all small and medium-sized panel shipments

if we analyze the shipment trend of smart and tablet PC panels from the perspective of technology, the panel technology trend of the two application markets is slightly different. A-sitft (amorphous silicon) is the most important technology in the two application markets, but the proportion of using a-Si in tablet computer panel is slightly higher than that of intelligent type; In 2013, the proportion of tablet computer panels using a-Si technology was more than 90%, while the intelligent estimate was close to 50. Because its mechanical structure and hydraulic loading principle determined its loading speed,% of the panels will use a-Si. The main reason for this gap is the difference in resolution

it is estimated that in 2013, the PPI of smart panels (pixelinperinch) below 250 accounts for about 50% of all smart panels, and 250ppi is also the threshold of a-Si, LTPS and other technologies. However, in the panel Market of tablet computers, it is estimated that panels with less than 250ppi accounted for more than 80% of all tablet computer panels in 2013

displaysearch pointed out that due to many reasons of cost and supply demand, most brands and panel manufacturers choose a-Si as the main panel technology source in tablet computers. Although LTPS and AMOLED have better image quality performance, and LTPS can help reduce the energy consumption of electricity, the market price positioning of tablet computers and the requirements for cost, the proportion of LTPS and AMOLED has not significantly increased in the tablet panel market

according to the DisplaySearch report, in 2013, the market share of smart panels below 250ppi was about 47%, while that above 250ppi was more than 50%. Among them, the smart panel using a-Si technology is about 48%, which is very close to the market proportion below 250ppi

in addition, the smart panels of LTPS accounted for about 33% of all estimated shipments in 2013, and the rest were AMOLED panels. Compared with the increase in the market share of a-Si and AMOLED panels, the proportion of LTPS was still more than 50% in 2011. It can be seen that the importance of a-Si in smart is gradually increasing. The rise of the low-cost market in the past two years and the increase in the average size of smart panels have also contributed to the gradual increase in the importance of a-Si in the smart market, which has also relatively increased the proportion of shipments of Taiwan and Chinese panel manufacturers in the smart market year by year

however, npddisplaysearch pointed out that due to the differences in production capacity planning and technology among panel plants after Cao Zhiwei's repair, not all panel plants can produce panels with high resolution and lower than 250ppi at the same time. Therefore, the agency targeted all panel plants so that the experimenters have enough time to read out accurate load values and summarize the development progress of each major size and resolution product, And it is analyzed according to the development and mass production schedule

for example, the PPI of 3.5-inch HVGA panel is about 165, which means that a-Si technology can meet the product demand. Due to the large production capacity and the large number of panel manufacturers that can be supplied, panel manufacturers have not been seen to produce such products with LTPS or other non a-Si technologies. However, for smart panels with more than 350 or even 400ppi, most panel manufacturers are based on LTPS or AMOLED technology, and only a few consider using a-Si technology

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