平板显示器驱动电路的原理与应用

驱动电路的设计与制作是平板显示器中的又一重要内容。本文就平板显示器驱动电路的一般原理作了详细的分析，其中包括矩阵扫描、能量恢复电路、灰度电路以及后级匹配功率放大器等，并给出了适用于不同器件的原理框图和应用实例。

大屏幕彩电新电路新技术精萃(1)——图像人工智能电路(AI)

随着电子技术,特别是数字技术的飞速发展,大屏幕彩电已日新月异,芯片种类、电路程式及处理方法均不断更新。对于这些新电路、新技术,人们需要进行了解,尤其是电子技术人员和维修人员更显迫切。作者曾在2001年3～12期作过一些介绍,颇受读者欢迎,纷纷来信要求再写续篇,为满足读者要求,现再次邀作者推出新的内容,以供读者参考。

Two-Stage Driving Circuit for One-Chip TFT-LCD Driver IC

A two-stage driving circuit of a one-chip TFT-LCD driver IC for portable electronic devices is proposed. The driving buffers of the new circuit are built in the γ-correction circuit rather than in the source driver. The power consumption,die area, and driving capability of the driving circuit are discussed in detail. For a two-stage driving circuit with 13 driving buffers, the settling time of the driving voltage within 0.2% error is about 19.2μs when 396 pixel-loads are driven by the same grayscale voltage. The quiescent current of the whole driving circuit is 518μ~A,and the power consumption can be reduced by 77%. The proposed driving circuit is successfully applied in a 132RGB × 176-dot,260k color one-chip driver IC developed by us for the TFT-LCD of mobile phone, and it can also be used in other portable electronic devices, such as PDAs and digital cameras.

FED驱动系统集成设计

FED驱动系统的集成化设计,有助于加强系统的稳定性、减少厚度、缩小系统整体体积,同时节省设计成本,使之薄型化发展。就所选集成芯片设计行扫描电路和列灰度调制电路,对芯片的工作过程给予解释,并对集成设计中的几个考虑点予以说明,通过设计调试,实现FED集成彩色显示,有图像细腻、色再现好等优点。