毕业设计--TFT-LCD显示技术电路设计和仿真

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1、 1 摘要摘要 随着TFT_LCD技术的迅猛发展，并且它拥有着性能优良、大规模生产特性好、自动化 程度高、原材料成本低廉的很多的优点，从而广泛应用于诸多领域。在这样的背景下，对 其驱动电路也提出了更高的要求。 本文即旨在进行TFT_LCD列驱动电路设计和仿真， 设计结构分为数字部分和模拟部分 两大部分，主要包括双向移位寄存器、数据寄存器、数据锁存器、电平位移、D/A变换和 输出缓冲六个部分。首先会对列驱动电路的原理和工作过程做深入的了解，然后在参考已 有经验的基础上，提出了本设计的总体结构和功能模块的划分。其次，通过Multisim和 Cadence仿真工具对设计方案的结果进行验证。最后，在各

2、个模块的基础上，建立了整体芯 片的结构框图。 电路设采用Multisim和Cadence工具进行仿真，仿真结果表明，所设计的驱动电路基本 满足液晶显示器的性能要求。 关键字：列驱动；薄膜晶体管；校正；D/A变换 2 Abstract As TFT_LCD technology is developing rapidly, and it has excellent performance characteristics of large-scale production, high degree of automation, low-cost raw materials as well as m

3、any other advantages,which are widely used in many fields.In this context,the driving circuit is also put forward higher requirements. This article aims to conduct TFT_LCD column driver circuit design and simulation design structure is divided into the digital part and analog part of two major parts

4、, including bi-directional shift register, data register, data latches, level displacement, D/A conversion and output buffer six parts. We will first column drive circuit of the principle and process in-depth understanding. Then, in reference to previous experience on the basis of this design, we will present the overall structure and the division of functional modules. Secondly, we use Multisim and Cadence simulation tools to verify the results of the design. Finally, in each module on the ba