TFT-addressed full-color reflective-type display using mixed-mode twisted-nematic LCD

Abstract— A high-performance reflective-type TFT-LCD with full-color and video-rate capabilities has been developed. This display utilizes a single-polarizer geometry associated with a mixed-mode twisted-nematic (MTN) effect. The twist angle of the liquid-crystal cell is optimized by evaluating the light efficiency, contrast ratio, chromaticity, and gray-shading reproducibility with respect to the variation of cell-gap uniformity. Attractive features of this display such as low driving voltage, fast response, wide viewing angle, rich gray scales with superior color reproducibility, and clear image with no parallax are demonstrated.     

Characterization of inhomogeneous retarders

Abstract— Various approaches for the measurement and evaluation of the optical characteristics of compound retarder sheets will be presented and their features and limitations will be discussed. Two ways of modeling the actual multilayer structure with an inclined uniaxial indicatrix and an inhomogeneous biaxial layer plus negative c‐plate is introduced and compared, and the performance of these models is analyzed for the principal plane of light incidence and for arbitrary directions of light propagation.     

可消除数据依赖性缺陷的胆甾相LCD动态驱动法

提出了一种改良的动态驱动法,该方法消除了存在于胆甾相LCD图像中的图像-数据相窜扰的缺陷,并通过在每个连续被选像素电压脉冲之间插入一个帧电压脉冲,使得有效选取时间与前一个和下一个非选取像素电压无关。     

Improving the display performance of reflective color LCDs with micro-cone-structure film

Abstract— A micro-cone-structure film was proposed to improve the viewing angle of reflective color LCDs, both in chromaticity and brightness. The simulation results show that the film works as a collimating layer when the light is incident from the bottom side of cone and as a scattering layer when the light is incident from the tip side. The viewing-angle dependence of reflective interference color filters (RICF) is weakened dramatically by including such a film. The film is not only useful to RICF, but also to most reflective color LCD modes.     

Full-color reflective liquid-crystal display using internal-reflection inverted-scattering (IRIS) mode

Abstract— We developed a bright full-color reflective LCD which employs a newly developed IRIS mode, a scattering PDLC, and a MIM active matrix with two processes. The full-color IRIS LCD provides high efficiency for ambient light and good color representation characteristics for battery-driven low-power applications.     

大屏幕LED背光液晶显示器批量生产的问题

对环境的保护,包括减少有害物质的使用、减少能源消耗以及延长产品使用寿命的需求,正在成为非冷阴极（non—CCFL—based）背光技术发展的动力。虽然批量生产的问题现在正在发生变化,但成本和技术上的壁垒曾经使得基于LED方案的产量难以提高。     

Axially symmetric aligned microcell (ASM) mode: Electro-optical characteristics of new display mode with excellent wide viewing angle

Abstract— The new LCD display mode (ASM mode) which has the axially symmetric orientation of liquid crystal molecules and the micro-cell structure corresponding to each pixel is described in this paper. The electro-optic characteristics of this mode afford high contrast (CR ≥ 200, at normal direction) and the wide viewing angle characteristics without contrast inversion (±60° in both up-down and left-right directions).     

DIMOS — a software tool for optimizing display systems with LCDS

The Display Modelling System (DIMOS) is a software tool that was developed to evaluate the electro-elastic, electro-optic and colorimetric properties of display systems with liquid-crystal cells. DIMOS enables the user to perform a numerical analysis of the complex interdependencies between the numerous physical parameters of such display systems and the relevant output quantities. These must be known in order to optimize information content (multiplexability) and visibility of display systems with liquid-crystal cells. The structure and organisation of DIMOS is explained with special emphasis on the definition of dichroic dyes, polarizers and birefringence dispersion of LC materials. An overview is given of the numerical procedures used for the evaluation of the field-induced deformation and the optical properties of arbitrary chiral-nematic LC-configurations. The applicability of DIMOS to the optimization of supertwisted LCDs is shown in an example.     

平板显示的最新进展

本文以近一两年的文献为基础，阐明平板显示各主要分支－如液晶显示、等离子体显示、电光显示、平板ＣＲＴ、场致发射显示等的最新进展，并作出一些评述。     

Sequential‐color LCD based on OCB with an LED backlight

We have fabricated a 13.3‐in. XGA (1024 × 768) TFT sequential‐color liquid‐crystal display using optically compensated birefringency (OCB), illuminated by an LED backlight. We fabricated the sequential‐color display feasible process technology, and examined the performance and potential of a field‐sequential‐color scheme. The display was connected to a laptop computer and examined for flicker.