液晶光电特性测量与应用设计
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