Front Screen Glass lens for iphone 14plus

                                                                                 Current status of the touch screen industry

The main technologies of projected capacitive touch panels for multi-touch applications are divided into two types: film type and glass type. The Apple camp uses glass projected capacitive (glass type) instead of The Apple camp is mainly based on film type PET; the current mainstream film structure is to use ITO on PET film through photolithography or printing, and the outer layer is protective glass called GFF (Glass-Film-Film). structure, and the mainstream glass structure is to make the touch sensor on the ITO glass, and the outer layer plus a piece of protective glass is the GG (Glass-Glass) structure. The former is limited by the fact that high-end ITO thin film materials are in the hands of a few Japanese companies, and the latter’s GG bonding yield is generally low, which is the main reason for the high cost of projected capacitive touch modules.

In order to effectively reduce the cost of touch modules and at the same time meet the market trend of thinner and lighter terminal consumer electronics products, the touch industry has actively started research and development in the past two years to reduce the amount of ITO film or ITO glass, and develop OGS, embedded touch or GF film technology. . OGS technology integrates ITO glass and protective glass into one piece of glass, which not only reduces one piece of glass, but also saves a bonding process, which is about 0.4mm thinner than the two-piece G/G product, and is estimated to save about 50% of the cost.

At present, professional touch module manufacturers Chenhong, Shenghua, and Dahong are the most active in the development of OGS. Among them, Shenghua's OGS has the fastest mass production and shipment speed. In 2011, it has been applied to smart phones of many international brand manufacturers. In early 2012, the domestic touch industry also actively invested in the development of OGS products, and began to send samples to customers for certification. If the problems of glass strengthening and production efficiency are solved, OGS is expected to become the new mainstream of glass touch technology in the future.

Compared with external professional touch module manufacturers actively deploying OGS technology, major TFT or AMOLED panel manufacturers tend to develop in-cell technology (In Cell Touch), directly making sensors in the display, which can be roughly divided into In-cell and On-cell two technologies. The advantages of in-cell touch control can also save a piece of glass and a bonding process. However, since the introduction of in-cell technology panel manufacturers must have LTPS technology, the entry threshold is relatively high, and the current process yield is still low. The external touch panel has little effect.

However, with Apple’s strong support for embedded technology and its recent efforts to jointly develop with Japanese and Korean industry players, Samsung will also launch AMOLED application products with on-cell touch technology this year. underestimate.

In 2012, under the competition of OGS and embedded technology, the glass touch panel is setting off a wave of thin and light touch technology market competition. The industry pointed out that under the development trend of OGS in the touch market, outside the original sensor and module factories, the protective glass industry and the color filter factory also have the opportunity to cut into the field of touch modules. The revolution of the touch industry is ready. send.

It is worth noting that Samsung and its co-suppliers in South Korea plan to build the latest OGS production line and are actively building related strategic supply chains. For example, the key OGS sputtering equipment technology is expected to be provided by Taiwanese manufacturers Confucian Precision provided it. It is understood that Samsung Group may reverse the previous purchase mode of touch module factories and set up part of the touch production line in house. It reveals the change of Samsung's touch supply chain strategy, which deserves the attention of domestic industry players.