All 46 inches of 46 -inch display color images can be output and folded (ITMEDIA News) --Yahoo! News
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12コメント12件Appearing the side with a video displayed on the 46 -inch prototype screen
英ケンブリッジ大学などによる研究チームが開発した「Smart textile lighting/display system with multifunctional fibre devices for large scale smart home and IoT applications」は、全て繊維素材で製造したスマートテキスタイルシステムだ。 [Image] It does not break down even if it is rolled or bent vertically. The thickness of the display can be displayed on the display part of less than 5mm, and can be folded like a normal fabric with the displayed state. Various sensors and antennas are also composed of fibers, detecting finger touch, light, and temperature, enabling wireless power transmission. Energy preservation is also possible. In recent years, research on smart textiles using conductive threads and cloth has been underway, but its functionality, dimensions, and shapes are limited. It is based on the fact that it cannot be incorporated into the manufacturing process using existing weaving machines. Therefore, if the appropriate technology that can be incorporated into the manufacturing process, the application size and shape can be expanded. This time, in order to withstand the manufacturing process of existing weaving machines, various inputs and fiber -based materials that become output devices have been protected with a material that can withstand sufficient expansion and contracting. As a result, the performance deterioration is very small even when processed with a conventional weaving machine, and it can maintain compatibility. This suggests that smart textiles can be produced in almost unlimited size. The prototype incorporates one output device (F-LED, fiber LED) and six F (fiber) input devices that support symmetry and asymmetric weaving patterns into cotton fiber platforms. The size is 46 inches and the thickness is less than 5mm. In order to weave this width of 60cm, there are more than 1,000 weft. F-type input devices include F-RF (high-frequency antenna), F-Photodetector (optical sensor), F-Touch Sensor, F-Temperature Sensor (temperature sensor), F-Biosensor Module -The six of the Energy Storage (energy storage) are all dropped into fibers. The production of an output device that displays a large area of images is a full-color 34-inch display with an F-LED equipped with an RGB LED on a copper-based thread and a screen resolution of 84 × 76 and 120 × 65 pixels. The pixel pitch of F-LED is designed to 7mm and 5mm, respectively. To prevent the distortion of the image, the cotton yarn is knitted asymmetrically (F-LED and cotton thread 1: 3). Since the controller can only access the data up to 700 pixels, one controller has been added to each of the 8 LEDs, and there are 10 controllers required to operate a 34 -inch textile display. The F -type input device is incorporated using a embroidery or an adhesive, etc. in the remaining area. The RF antenna is HF band (frequency 13).A square spiral antenna designed to be received at a distance from 56MHz) was embroidery with conductive threads. The touch sensor was woven vertically and horizontally with a silver -based conductivity thread to show a change in resistance when touched. It is said that it has realized a complex simultaneous reading and multi -touch function comparable to a touchpad. The temperature sensor incorporated a fiber system that twisted two copper and copper oxide fiber. As a result of the experiment, it was found that the temperature range was between 5 and 70 degrees. Energy storage is incorporated as a double -layered fiber supercapaceter with gel electrolytes (polyvinyl alcohol) sandwiched between carbon fiber. The five fiber capacitors were connected to in -line, indicating a total of 5V output voltage. In order to increase the capacity of the fiber capacitor, the total electrical capacity increased tripled when a silver -based conductive thread was incorporated into the carbon fiber. Energy storage is mainly used to switch between power, display, and monitoring mode. The biosensor consists of transistors, resistors, and electrocardiogram pads. This textile -shaped transistor is incorporated by a laser decoded with asymmetric fabric patterns and silver -based adhesive. You can get a biometric signal such as heartbeat and electronics. In addition, a circuit is formed with a conductive thread to electrically transmit information from the F-system (input unit) to the F-LED display (output unit). The smart textile system manufactured in this way was a low voltage (less than 3V), and the brightness exceeded 104CD/m2 with RGB color, while maintaining the color purity and brightness for the shape change. After testing the stability of heat, the temperature change of 2 degrees or less with 6 hours continuous operation (24).7 to 26.I observed twice).When I examined the waterproof performance (waterproof 1m, 30 minutes), all F-devices showed inconspicuous performance.The prototype not only can be used as a display that displays color images like a TV, but also captures the electrical activity of the heart and reflects it as an electrocardiogram, or accumulates energy to use later.The input portion can also detect high -frequency signals, touches, light, and temperature, so the application range will be diverse.Source and Image Credits: Choi, H.W., SHIN, DW., Yang, J.et al.Smart Textile Lighting/Display System with MultiFunctional FITHBICES FORGES FORGE SCALE SMART HOME AND IoT Applications.NAT Commun 13, 814 (2022).https: // doi.Org/10.1038/S41467-022-28459-6Mr. Yamashita picks up and explains a highly new nature paper.
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