为进一步降低液晶显示器的逻辑功耗，本文以11.6HD、14HD、14FHD为背景,分别从像素结构、驱动技术、驱动电路设计以及背光驱动技术等方面进行了深入研究。首先，研究了不同像素结构(dual Gate + normal像素结构和dual Gate + Z inversion像素结构)下多种像素驱动方法对功耗的影响。接着，研究了像素负载以及像素驱动信号(包括栅极驱动信号和源极驱动信号)对功耗的影响。最后，对比了不同的背光调光方法对功耗的影响。实验结果表明: 像素结构、负载大小、驱动方法均对功耗有较大的影响。以14HD为例，点翻转比列翻转会有38.5%的功耗上升; Data load 每上升10%，功耗约有 8%的上升; VGH每提高1 V，功耗上升 1.35 mW; 采用mix-mode调光方式比传统的PWM调光在不同亮度百分比下功耗约降低2%~15%。因此通过对这些功能模块进行优化设计可以有效地降低液晶显示器逻辑功耗。

In order to reduce the power consumption of the TFT-LCD, some methods were studied in this paper. These methods include pixel structure, drive method, circuit design and backlight drive based on the 116 HD, 14 HD and 14 FHD. First, the influence of pixel structure on power consumption is studied which use different pixel structure (dual Gate + normal pixel structure and dual Gate + Z inversion pixel structure) under a variety of pixel driving method. Second, the influence of pixels load and pixel driving signal which include Gate and source drive signal on power consumption is studied. Finally, power consumption between PWM dimming and mix-mode dimming at the same BLU is compared. The result shows the pixel structure, pixel loading and driving method have great influence on power consumption. For example, dot inversion will add 38.5% than column inversion in power consumption at 14HD product. When data load rose 10%, there is about 8% of power consumption added. When the VGH increase about 1 V, there is 1.35 mW power added. Mix mode dimming can decrease power about 2%~15% than the traditional PWM dimming under different brightness. Therefore, the optimization design of these methods can effectively reduce the power consumption of TFT-LCD.