A Two-Dimensional and Hyperfine Measurement of Cell Parameter Distributions in the Reflective Liquid Crystal Display Panels

反射式液晶显示面板中单元参数分布的二维超精细测量

• 批准号: 13555103
• 负责人: SATO Susumu
• 金额: $ 4.61万
• 依托单位: AKITA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-13555103/
• 关键词: Stokes Parameter; Liquid Crystal Panel Parameter; Cell Thickness; Twist Angle; Pretilt Angle; Reflective Liquid Crystal Display Panel; Two-dimensional Distribution Measurement; Two-Dimensional Visualization; 分子配向の捻れの角度; 液晶セルパラメーター; 液晶層の厚み; 液晶分子

1.The polarization states of reflected light intensities of the reflective LC cell are measured and the normalized Stokes parameters of the light transmitted through the LC cell are obtained using Stokes parameter equations. Then, the cell parameters such as the cell thickness, twist angle and pretilt angle in reflective liquid crystal (LC) cells can be deter-mined simultaneously by using these Stokes parameters.2.The cell thickness distribution can easily be determined by measuring the Stokes parameters at one wavelength, and both of the cell thickness and twist. angle can also be determined by using two wavelengths, where the twist angle and/or the pretilt angle are assumed to be the designed values. Furthermore, Three cell parameters including the pretilt angle as well as the cell thickness and twist angle can also be measured by using three wavelengths Stokes parameter equations.3.Two-dimensional LC cell parameters such as the cell thickness, twist angle and pretilt angle of the reflective LC cell can easily be obtained and their mapping results are successfully demonstrated.4.The cell parameters in the practical LC display panel with the color filters such as a red, green and blue (RGB) can be determined by measuring Stokes parameters at the wavelength of near-infrared region.5.The results are examined and the research work is summarized.

1.测量了反射式液晶盒的反射光强度的偏振态，并利用斯托克斯参数方程得到了透射过液晶盒的光的归一化斯托克斯参数。利用这些斯托克斯参数，可以同时确定反射式液晶盒的盒厚、扭曲角和预倾角等盒参数。2.通过测量一个波长下的斯托克斯参数，以及盒厚和扭曲角的斯托克斯参数，可以很容易地确定盒厚分布。也可以通过使用两个波长来确定扭转角，其中假定扭转角和/或预倾角为设计值。此外，利用三波长Stokes参数方程还可以测量液晶盒的预倾角、厚度和扭转角等三个液晶盒参数。3.二维液晶盒参数，如液晶盒厚度、液晶盒厚度、液晶盒扭转角等。4.通过对实际液晶显示屏的液晶盒参数的计算，得到了液晶盒的扭转角和预倾角，并成功地验证了它们的映射结果。通过测量近红外波段的斯托克斯参量，可以确定红、绿色和蓝色（RGB）等彩色滤光片。

项目成果

M.Okabe: "Evaluation of Cell Parameters of TN Liquid Crystal Cells by using a Stokes Parameter Method"Molecular Crystals & Liquid Crystals. Vol.367. 771-778 (2001)

M.Okabe：“使用斯托克斯参数法评估 TN 液晶盒的盒参数” 分子晶体

M.Kawamura: "Polarization-Controlling Liquid Crystal Devices with a Stacked-Electrode Structure"The International Symposium on Optical Science and Technology, SPIE's 47th Annual Meeting (Seattle, USA) (Invited Paper), Liquid Crystals VI. Vol.4799. 214-221

M.Kawamura：“具有堆叠电极结构的偏振控制液晶器件”国际光学科学与技术研讨会，SPIE第47届年会（美国西雅图）（特邀论文），液晶VI。

M.Kawamura: "Novel Real-time Measurement of Cell Parameters in Reflective Liquid Crystal Cells by Using a Circularly Homogeneously Aligned Liquid Crystal Cell"The International Symposium on Optical Science and Technology, SPIE's 48th Annual Meeting (San D

M.Kawamura：“Novel Real-timeMeasurementofCellParametersinReflectiveLiquidCrystalCellsbyUseaCircularHomogeneouslyAlignedLiquidCrystalCell”国际光学科学与技术研讨会，SPIE第48届年会（San D）

T.Maehara: "A Measurement Equipment for Determining Cell Parameters of Transmissive-Type Liquid Crystal Cell (LCD Analyzer LCA-LU4) (in Japanese)"Monthly display. Vol.7,No.12. 12-19 (2001)

T.Maehara：《用于确定透射型液晶单元的单元参数的测量设备（LCD分析仪LCA-LU4）（日文）》每月展示。

M.Kawamura: "Determination of Anchoring Energy in Nematic LC Cells with Controllable Twist Angles by Using a Stokes Parameter Method"19th International Liquid Crystal Conference. P350. 350 (2002)

M.Kawamura：“使用斯托克斯参数方法测定具有可控扭转角的向列液晶单元中的锚定能”第 19 届国际液晶会议。