Harbin Institute of Technology, Shenzhen

Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.

Kunkun Jiang

Weiwei Zhao

Xing Ma

Jiaheng Zhang

Huanhuan Feng

Tingting Zheng

Min Wang

Meng Wang

Yueyue Zhang

Zhenchao Zhang

An embodiment of the present application discloses a display panel including an array substrate including a common wiring. The common wiring includes a first wiring, the first wiring is disposed in a redundancy pixel region. An opposite substrate includes a common electrode layer disposed in a display region and a redundancy pixel region. Along a thickness direction of the display panel, the first wiring overlaps the common electrode layer. When the display panel is in a display state, an absolute value of a difference between a voltage inputted to the first wiring and a voltage inputted to the common electrode layer ranges from 0 to 1 volt.

Display panel with overlapping wiring and common electrode layer

Disclosed is an aqueous fluorescent ink and a preparation method and use thereof. The aqueous fluorescent ink provided by the present disclosure includes 0.10%-0.14% of polystyrene micro-spheres, 0.010%-0.014% of fluorescent dyes, 0.4%-0.6% of surfactants, and the balance of water. The present disclosure uses polystyrene micro-spheres as a fluorescent dye carrier, which is colorless and transparent under ordinary daylight and completely invisible, and displays fluorescence only when irradiated by ultraviolet light and has high fluorescence intensity. The surfactant makes the polystyrene fluorescent micro-spheres uniformly dispersed in the fluorescent ink, and the stability of the fluorescent ink is improved. Water is used as a solvent, which has excellent safety and environmental friendliness. The accuracy of the printed patterns can reach 30 μm, which can help realize large-format ultra-high-precision patterned anti-counterfeiting encryption printing. Through precision printing, the two-dimensional code can be implemented with one code for one object, and has excellent anti-counterfeiting ability.

Aqueous fluorescent ink and preparation method and use thereof

The present invention relates to a medical wristband with invisible information and a method for manufacturing the same. The conventional developed dyes or inks in the prior art can store information which, however, is visible. In the present invention, polystyrene (PS) microspheres are prepared by micro-emulsification: PS particles are dissolved in a toluene solution and a fluorescent dye is added to obtain a fluorescent solution; an SDS solution is added in and mixed with the fluorescent solution to obtain a system to be ultrasonically emulsified; and the system is ultrasonically emulsified and the toluene is completely volatilized. The ink can be used directly as an invisible ink. The information is written, as two-dimensional codes and by the ink, on a piece of non-fluorescent paper, and plastic-packaged onto a wristband of a patient. Information about a patient can be successfully scanned in the ease of UV on.

Medical wristband with invisible information and preparation method thereof

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Guangdong, China

Kunkun Jiang