论文部分内容阅读
从海外进口的单N制彩电,大都是90年代初期产品。这类彩电价格便宜,且都采用新电路、新技术、新器件。尤其是25in以上的大屏幕彩电,为了获得高清晰度、高分辨率的图像效果,都采用新型超黑底、超平面直角彩色显像管,并都增加了Y/C分离电路,在亮度通道采用边缘校正、细节校正、动态清晰度控制、扫描速度调制及黑电平扩展等电路。在伴音方面,这些大屏幕彩电基本都是大功率高保真双
Imported from overseas single N color TV sets, mostly the early 90s products. Such color TV cheap, and all adopt new circuits, new technologies, new devices. Especially for large-screen color TVs of more than 25in, new ultra-black matrix and super-plane right-angle color picture tubes are used in order to obtain high-definition and high-resolution image effects. All have added Y / C separation circuits, Correction, detail correction, dynamic resolution control, scanning speed modulation and black level expansion circuit. In the sound, these large-screen color TV are basically high-power dual-fidelity