Electronic paper (ePaper) suppliers are extending their reach to the wearable market. With the advantages of light weight, low power consumption and visibility under sunlight, the application layout of electronic paper technology has begun to expand to the wearable device market by e-reader and electronic tags, and is expected to be related displays. Suppliers open new blue ocean business opportunities.
Giovanni Mancini, director of E Ink's electronic paper product management, said that because wearables are extremely focused on size and power consumption, they have a thin, power-saving electronic paper display compared to liquid crystal (LCD) screens on glass substrates. Technology will be more suitable for wearable devices.
Therefore, E Ink Yuan and Sony jointly developed Mobius, a soft electronic paper made of plastic substrates. Mancini pointed out that compared with active matrix organic light-emitting diode (AMOLED), mirasol and other display technologies, Mobius has the advantage of the lowest power consumption, and among many electronic paper technologies, only Mobius can be used when the device power is completely consumed. Can keep the screen a certain brightness.
Mancini further analyzed that in addition to low power consumption, another advantage of Mobius is the extremely light weight of featherweight. It is understood that the panel weight of the glass substrate is positively correlated with the increase of the diagonal dimension, which will greatly affect the final weight of the end product, and the plastic substrate can greatly reduce the overall panel weight by eliminating the need for glass; For example, the Mobius soft electronic paper has a weight of about 93 grams, but the same size of the glass substrate weighs 144 grams.
Mancini said that the current Mobius soft e-paper has a minimum size of 1.73 inches, which is very suitable for small-volume wearable products, so it has been favored by some wearable device developers, such as Sonostar and Central Standard TIming (CST). ), have been competing to publish smart watches equipped with E Ink yuan electronic paper.
In fact, in addition to thin and light power, the visibility of electronic paper is also a big advantage in daylight. Taking the mirasol reflective display as an example, the technology can use the surrounding light source without using a backlight, so it has the advantages of power saving, and can also automatically adjust the brightness according to the ambient light source, without affecting the screen display effect due to the ambient light level, or even The color screen can be easily read under outdoor glare.
In fact, Qualcomm's smart watch, Toq, released in September 2013, aims to promote the company's low-power display technology, mirasol, which can attract the attention of the brand and accelerate the introduction of mirasol technology. Progress to the wearable device.
After the launch of Toq, mirasol display technology was also favored by the Chinese brand factory Leyuan digital, and at the end of November 2013 launched the smart watch with the same display technology - FashionComm A1; and Qualcomm and Leyuan digital in this year's CES venue Qualcomm also revealed that the company is developing the next generation of mirasol display technology for smart watches, which is more powerful than competitors.
For the future design trend of wearable display technology, Mancini believes that in addition to continuing to develop in the direction of light and power saving, the flexible and energy-saving flexible panel will also be the focus of future development of electronic paper manufacturers to assist the surface. Curved Display revolutionizes the wearable device visual experience.
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