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Jiemin Qiu,Weihao Ye,Congcong Chen,Zhiqiang Xu,Chaofan Hu,Jianle Zhuang,Hanwu Dong,Bingfu Lei,Guangqi Hu,Yingliang Liu 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.117 No.-
UV absorbers are sustainable substances that inhibit the ultraviolet (UV) radiative degradation of polymers. In previous reports, the as-prepared carbon dots (CDs) possess only an absorption band at UVA(320–400 nm). To achieve broad-spectrum UV absorption (200–400 nm), increasing the concentrationof the CDs solution becomes common. However, a high concentration solution seriously affects the lighttransmittance due to its heavy yellow color. Furthermore, the promising organic UV absorbers cannotachieve broad-spectrum UV absorption. In this work, we initially synthesized three-component watersolublecarbon dots (OP–CDs), which delivers an excellent UV absorption (98 % UVA and 100 % UVB atthe concentration of 1.7 102 mg/mL; 99 % transmittance in visible light). Moreover, OP–CDs exhibitoutstanding stability at high temperatures and different pH. With the corporation of OP–CDs and polyvinylalcohol (PVA), a high-performance UV-shielding film was formed, leading to enhanced broadspectrumUV shielding performance and improved mechanical properties, resistance of photocatalyticactivity and anti-UV aging ability compared with pure PVA film. Notably, the PVA film remains hightransparency with the addition of OP–CDs. The study suggests that the corporation of OP–CDs and polymersis effective in anti-UV degradation.
Development of a 120 Hz 110 ultra-high-definition a-Si liquid crystal display panel
Yanping Liao,Xibin Shao,Yufan Du,송용지,Weihao Hu,Zhenyu Zhang,Yuqiong Chen,Ying Wang,Qing Ma,윤대근,Dan Wang,Jianfeng Yuan,Hongjiang Wu,Zongjie Guo,Zhaohui Hao,Ji Zhang,Jing Lv 한국정보디스플레이학회 2014 Journal of information display Vol.15 No.2
A prototype 120 Hz 110-inch ultra-high-definition a-Si liquid crystal display (LCD) panel was successfully developed using the BOE exclusive advanced superdimensional switching technology. This LCD has a panel consisting of 3840 × 2160 pixels, four times the number of pixels in the conventional full-high-definition LCD. For the brightness and contrast ratio, 1000 nits and 1200:1 have been achieved, respectively. Additionally, the liquid crystal charging time has been extended through quad area driving and 2G2D line structures. Furthermore, the local dimming and mirror-scanning techniques are applied to realize excellent image display. Finally, the system utilizes 3D shutter glasses, allowing the viewer to achieve the highest sense of realness and immersion.