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摘要液晶是一种介于固体和液体之间的物质的一种独特的中间相。虽然它的发现已有一个多世纪，但是只是近 30年来，它在基本理论和应用研究方面得到迅速的发展。国内外学者对液晶特性的研究，主要有液晶的电光特性和视角特性。人们发现对液晶物质施加电场，就能改变分子排列的规律，从而改变液晶的透射率，这就是液晶的电光特性；而从不同的方向、角度观察液晶面板上的图像，图像的清晰度是不一样的，这就是液晶的视角特性。 本文作者利用液晶光学特性测量系统对 TN 型液晶的视角特性进行测量。认识液晶光开关的工作条件和液晶光开关构成图像矩阵的方法，学习和掌握这种矩阵所组成的液晶显示器构成文字和图形的显示模式，从而探究一般液晶显示器件的工作原理和工作特性。并由这些特性开发液晶的一些应用设计。 60447
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毕业论文关键词 液晶 液晶光开关 视角特性 图像显示矩阵
Title LCD characteristics are measured with application design
Abstract LCD is a range between the solid and liquid substances. Although it has been discovered more than a century，but in the last 30 years, It gets rapid development in the basic theory and applied research. Scholars mainly have the research on electro-optical properties and perspectives characteristics of liquid crystal . It was discovered that applying an electric field to the liquid crystal material can change the regular of molecular arrangement so that we can change the transmittance of the liquid crystal. This is the electro-optical properties of liquid crystal.We can find that Image clarity is not the same by observing the image on the LCD panel from different directionsand angles. This is the viewing angle characteristics of the liquid crystal. In this study, we measure the optical characteristics and the viewing angle characteristics of the TN liquid crystal by using LCD Optical Characteristics Measurement System. We can understand the working conditions of the liquid crystal light switch， the liquid crystal optical switch matrix method constitutes an image and we can learn and master this matrix composed of a liquid crystal display text and graphics display modes.Then we can understand the general working principle of liquid crystal display device. Also we can find some LCD applications from these features.
Keywords Liquid crystal optical switch Viewing angle characteristics Image display matrix
1 引言 1
1.1 什么是液晶 1
1.2 液晶研究的发展历史 3
1.3 液晶的分类 5
1.3.1 向列型液晶 6
1.3.2 近晶型液晶 7
1.3.3 胆甾型液晶 7
1.3.4 手性相列型液晶 8
2 实验装置及原理 9
2.1 实验装置 9
2.2 液晶光开关的工作原理 10
2.2.1 液晶光开关的电光特性 12
2.2.2 液晶光开关的视角特性 12
2.2.3 液晶光开关构成图像显示矩阵的方法 13
2.3 液晶显示器显示原理 14
3 实验研究 16
3.1 液晶光开关视角特性的测量 16
3.1.1 水平方向视角特性 16
3.1.2 垂直方向视角特性 17
3.2 液晶显示器显示图 19