http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
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.
Gan Zhang,Anjian Qiu,Taixun Zhang,Wei Hua,Xibin Guo 전력전자학회 2023 JOURNAL OF POWER ELECTRONICS Vol.23 No.7
This paper proposes a 12-stator slot/4-rotor pole (12/4) synchronous reluctance (SynRel) machine with integral slot concentrated windings (ISCW), a segmented stator, and a skewed rotor, namely the 12/4 ISCW machine. The proposed 12/4 ISCW machine exhibits comparable torque performance when compared to the case of adopting an integral slot distributed winding (ISDW) with the same total stack length. A comparison study is conducted on the 12/4 ISCW machine, a 24/4 ISDW machine, and 6/4 fractional slot concentrated winding (FSCW) machines. Then a torque prediction method and a continuous maximum torque per ampere (MTPA) control based on the polynomial fitting model (PFM) are proposed for SynRel machines, to provide fast and accurate calculation of the real-time inductances and torque. Magnetic saturations are also considered in the PFM, which is why the PFM has great potential in the maximum-current-per-torque control of SynRel machines. Finally, a prototype of the proposed 12/4 ISCW SynRel machine is manufactured and experimental validations are carried out.