DESIGN AND TRIAL FABRICATION OF TIME SHARING MULTI-DIRECTIONAL VIEW 3D DISPLAY USING HIGH-SPEED LIQUID CRYSTAL DEVICE

高速液晶器件分时多向视图3D显示器的设计与试制

• 批准号: 16560290
• 负责人: MIYASHITA Tetsuya
• 金额: $ 2.3万
• 依托单位: TOHOKU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2004
• 资助国家: 日本
• 起止时间: 2004 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-16560290/
• 关键词: ELECTRONIC DEVICES EQUIPMENTS; DEVICE DESIGN MANUFACTURING PROCESS; DISPLAY; 3 DIMENSION; LIQUID CRYSTAL; CONTOL OF LIGHT DIRECTION IN TIME SHARING; BACKLIGHT; STEREOSCOPIC IMAGE; 三次元ディスプレイ; 立体画像ディスプレイ; 液晶ディスプレイ

We proposed a three-dimensional display system consisted with a high-speed liquid crystal display panel and a time-sharing light-direction control backlight. Displayed images on LCD corresponding with multi-view are changed sequentially in a high-speed and the light direction from a backlight are changed in synchronize with the displayed image. This system has merits that the displayed image shows the same high resolution as the display panel and that the structure can be simple.The subject for the switching speed of the LC panel is common in researches about a field sequential color LCD. From the results, the 3D display with 6 view can be realized using current available LC materials.The backlight for this system is discussed focusing on the light efficiency. The optimized design was performed for lenticular-lens system and for parallax-barrier system respectively with reflected type polarizer to obtain high luminosity. The lenticular-lens system shows 7 times higher light efficiency than the parallax-barrier system by the result and the lenticular-lens system is adopted for this backlight.A liquid crystal prism is used for a device which control the light direction easily and in high efficiency. A backlight with a micro-shape prism-sheet and the LC prism-array is newly devised and the design rule is established. It is confirmed by trial fabrication that the device can work in a high speed by newly designed special driving scheme of liquid crystal in both on- and off-case.However, it is clarified that the usage of the intermediate state of liquid-crystal response is difficult in high-speed operation. In conclusion, the three-dimensional LCD using the time-sharing light-direction control backlight system is shown as a practical display and fundamental design theory is discussed and the validity is clarified successfully as mentioned above.

提出了一种由高速液晶显示屏和分时光控背光源组成的三维显示系统。在LCD上对应于多视图的显示图像以高速顺序地改变，并且来自背光的光方向与显示图像同步地改变。该系统具有显示图像分辨率与显示面板分辨率相当、结构简单等优点，液晶面板的开关速度是场序彩色液晶显示器研究中的一个常见课题。结果表明，利用现有的液晶材料可以实现6视角的3D显示。分别对反射式偏光镜的双透镜系统和光栅系统进行了优化设计，以获得高亮度。实验结果表明，双透镜系统的光效率是双光栅系统的7倍，因此采用双透镜系统作为背光源，并采用液晶棱镜作为控制光方向的器件。提出了一种基于微棱镜片和液晶棱镜阵列的背光源设计方法，并建立了相应的设计准则。试制结果表明，采用新设计的特殊液晶驱动方案，在开关状态下，器件都能实现高速工作，但液晶响应的中间态在高速工作时很难利用。综上所述，本文将分时光方向控制背光系统应用于三维液晶显示器，并讨论了其基本设计理论，成功地阐明了其有效性。

项目成果

Design of Backlight of time-sharing light-direction control

分时光向控制背光设计

• 发表时间: 2004
• 期刊: Digest of 2004 Tohoku-Section Joint Convention of Institutes of Electrical and Information Engineers
• 作者: S.Imai;Y.Tanaka;T.Fukao;T.Takada;T.Maeno;K.Wako;T.Kishimoto;T.Kishimoto;K.Kuboki;K.Wako;T.Kishimoto;T.Kishimoto;K.Kuboki;K.Wako;T.Kishimoto;松本雄史;Y.Matsumoto
• 通讯作者: Y.Matsumoto

Temperature Dependency on the Viscosity Coefficients, and the Response Time of OCB,ECB and VA Modes.

粘度系数的温度依赖性以及 OCB、ECB 和 VA 模式的响应时间。

• 发表时间: 2005
• 期刊: International Workshop on Active-Matrix Liquid-Crystal Displays Digest of Technical Papers 12
• 作者: S.Imai;Y.Tanaka;T.Fukao;T.Takada;T.Maeno;K.Wako;T.Kishimoto;T.Kishimoto;K.Kuboki;K.Wako;T.Kishimoto;T.Kishimoto;K.Kuboki;K.Wako;T.Kishimoto
• 通讯作者: T.Kishimoto

A Transition Method from Splay to Bend Alignment using Twist Discination for OCB-mode LCDs

一种使用 OCB 模式 LCD 扭转辨别从张开到弯曲对准的过渡方法

• 发表时间: 2005
• 期刊: Proceedings of the 3rd Student-Organizing International Mini-Conference on Information Electronics System Vol.3
• 作者: S.Imai;Y.Tanaka;T.Fukao;T.Takada;T.Maeno;K.Wako;T.Kishimoto;T.Kishimoto;K.Kuboki;K.Wako;T.Kishimoto;T.Kishimoto;K.Kuboki
• 通讯作者: K.Kuboki

時分割光方向制御バックライトの設計

时分光向控制背光设计

• 发表时间: 2004
• 期刊: 平成16年度電気関係学会東北支部連合大会
• 作者: S.Imai;Y.Tanaka;T.Fukao;T.Takada;T.Maeno;K.Wako;T.Kishimoto;T.Kishimoto;K.Kuboki;K.Wako;T.Kishimoto;T.Kishimoto;K.Kuboki;K.Wako;T.Kishimoto;松本雄史
• 通讯作者: 松本雄史

Analysis of Temperature Dependency on the Viscosity Coefficients and Flow-effect of Liquid Crystal, and their Influence on Response Time of OCB, ECB and VA Modes.

液晶粘度系数和流动效应的温度依赖性及其对 OCB、ECB 和 VA 模式响应时间的影响分析。

• 发表时间: 2005
• 期刊: SID International Symposium Digest of Technical Papers 36
• 作者: S.Imai;Y.Tanaka;T.Fukao;T.Takada;T.Maeno;K.Wako
• 通讯作者: K.Wako