查询词典 contrast ratio

It has 800×600 SVGA resolution and comes with 2200 ANSI lumens and a 2000:1 contrast ratio.

它800 × 600的SVGA决议，并配备2200 ANSI流明的亮度以及2000：1的对比度。

It has a 100,000:1 contrast ratio.

它有一个100000：1的对比度。

To achieve high brightness,high contrast ratio and high color saturation of projectors,dichroic thin film of good performance is designed and manufactured.

为达到高亮度、高对比度和色彩逼真的图像输出，设计了性能优越的偏振光分色合色膜系，采用计算机辅助监控方法，膜系的成品率和性能得到了很大的提高。

Two, from mouth to the North Gate Gate Wo two things equal to the distance between, forming an angle of 60 degrees the equilateral triangle, and the best contrast ratio perspective.

二、从午门北口至太和门东西两房之间的距离相等，形成一个夹角为60度的等边三角形，所以又烘托出最佳的视角比值。

The optimal operating speed without considering the response time of the nonlinear material, the least ON to OFF logic-level contrast ratio, and the minimum power for this half adder obtained were 0.91Tbps, 16dB and 436mW, respectively.

研究表明，当忽略介质本身与光场作用的时间延迟时，该半加器优化后的运算速度为0.91 Tbps，最小消光比为16 dB，最小消耗功率为436 mW。

A simple and acceptable measuring method for contrast ratio and LC response time will be presented in this paper.

一个简单与可接受的对比值与液晶响应时间的量测系统将呈现在本论文中。

Features · The number of active dots: 1,456,000 (1.6-inch; 4.1cm in diagonal)· Supports SVGA (804 3 604) and PC981 (804 3 500)· Effective aperture ratio: 70%· Built-in cross talk free and ghost free circuits · High contrast ratio with normally white mode: 150 · Built-in H and V drivers (built-in input level conversion circuit, 5V driving possible)· Up/down and/or right/left inverse display function

特点·积极点数：1456000（1.6英寸；4.1厘米在对角线）·支持的SVGA（804 3 604人）和PC98 * 1（804 3 500）·的有效孔径比：70％·内置在相声自由和自由的幽灵与一般电路·高白模式：150·内置在H和V驱动程序（内置输入电平转换电路，5V的驱动可能）高达·/下和/或右/左逆显示功能

The base-material has a contrast ratio of 0.20-0.40, a Stormer viscosity of 90-100KU, when the incident angle is 85 Deg, the lustrousness is 5-10 Deg.

本基料的对比率为0.20～0.40，斯托默粘度为90～100KU，入射角度为85°时，光泽度5°～10°。

The contrast ratio was larger than 70, rise time reached 587 microsecond and fall time was 486 microsecond.

器件的对比度大于70，上升时间和下降时间分别达到587 μs和486 μs。

The UV and IR spectroscopic studies of the monomer films showed that the photoreaction ratio of monomer (about 50%) was higher than the corresponding photosensitive polymer (about 10%, PVCi). The polarized IR spectra proved that obvious anisotropic absorption was displayed in the irradiated photosensitive film. With polarizing microscopy method, we found that these kinds of photoalignment films exhibited good alignment ability, and the stability of the photoalignment film could reach about 100℃. 2 A photosensitive self-assembled monolayer was fabricated that contained photo-cycloadditable groups, such as, coumarin and cinnamate. The reaction process were detected by contact angle method because the IR absorption of monolayer was very weak. The photosensitive self-assembled monolayer promote uniform alignment of nematic liquid crystals by LPUV, and it thermal stability could reach about 130℃. 3 A cationic bolaform amphiphiles was synthesized that had two photosensitive double bonds, and can be polymerized by ultraviolet. A layer-by-layer self-assembled deposition film was prepared in aqueous solution by using this material and poly (sodium 4-styrenesulfonate). The UV-Vis. spectra proved that the multilayers film was uniform and layer-by-layer. When LPUV irradiated the film, the photopolymerizable double bond underwent [2+2] cycloaddition, and the production of the reaction distributed along the polarized direction of incident LPUV. Polarized UV-Vis. spectra indicated that the irradiated self-assembled multiplayer film was anisotropic, and the dichromic ration is about 0.09, it is higher than the spin-coating method of photosensitive polymer or monomer. We used this anisotropic film as alignment layer of nematic liquid crystals, and obtained a uniform and stability alignment result, the static contrast ratio is about 100, which is very close to application of liquid crystal device. This thesis is an instance that the photochemical material was used in the physics region of liquid crystals, the route that was from photosensitive monomer, self-assembled monolayer film to self-assembled multiplayer film was undergone, by this logical research method photoailgnment of liquid crystal was extended and consummated.

围绕上述思路开展了如下工作：1合成了三种可进行光二聚反应的光敏小分子单体，LPUV 辐照制作了光控取向膜；用紫外-可见光谱法和红外光谱法分析了薄膜中的光化学反应，发现小分子的光反应程度可达到50%以上，至少比光敏高分子高出5倍；薄膜的偏振红外光谱证实，经过LPUV 辐照后薄膜出现了明显的各向异性；将小分子光控取向膜制成液晶器件，在偏光显微镜下观察看到均匀一致的液晶取向；并且热稳定性达到100℃左右，接近实用化要求。2制备了含肉桂酸、香豆素基团的自组装单层膜；采用接触角的方法监测自组装反应的动力学过程；紫外-可见光谱证实了自组装单层膜在石英基板表面形成；自组装单层膜经LPUV 辐照后能诱导液晶均匀取向，而且热稳定性可达130℃，热稳定性进一步提高。3合成了含有光敏双键的双季铵盐，在水溶液状态下将它和聚乙烯基苯磺酸钠沉积生成layer-by-layer 自组装多层膜，紫外-可见光谱证实这是一个逐层均匀的沉积；在LPUV 照射下，自组装膜中的光敏双键按照偏振方向发生[2+2]环加成反应，形成取向膜，用二向色性值评价的分子取向度高于高分子及小分子光控取向膜的水平；实验证明用自组装多层膜制成的液晶器件亮暗态均匀，静态对比度约为100，达到实用化器件的水平。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。