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排序方式: 共有342条查询结果,搜索用时 37 毫秒
211.
Thomas Bachels Jürg Fünfschilling Hubert Seiberle Martin Schadt Gerard Gomez Eric Criton 《Journal of the Society for Information Display》2003,11(3):519-524
Abstract— We demonstrate a novel TN‐display compensation film with excellent contrast and minimal color shift, meeting the requirements for avionics displays. The film configuration was identified via extensive computer modeling. The experimental implementation based on ROLIC's LPP/LCP (linearly photopolymerizable polymer/liquid‐crystal polymer) technology results in excellent agreement with theoretical predictions. 相似文献
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213.
Second-screen viewing—the use of smartphones, tablets, and laptops while watching television—has increased dramatically in the last few years. Using multiple resource theory and threaded cognition theory, this study investigated the effects of second-screen viewing on cognitive load, factual recall and comprehension of news. Second, we examined the effects of relevant (i.e., looking up information related to the news story) and irrelevant (i.e., looking up information unrelated to the story) second-screen viewing on learning from news. Results from an experiment (N = 85) showed that second-screen viewing led to lower factual recall and comprehension of news content than single-screen viewing. These effects were mediated by cognitive load: second-screen viewing led to a higher cognitive load than single-screen viewing, with higher cognitive load, in turn, leading towards lower factual recall and comprehension of news content. Contrary to our expectations, we found no statistically significant differences between effects of relevant and irrelevant second-screen viewing. 相似文献
214.
Dimigen Olaf; Sommer Werner; Hohlfeld Annette; Jacobs Arthur M.; Kliegl Reinhold 《Canadian Metallurgical Quarterly》2011,140(4):552
Brain-electric correlates of reading have traditionally been studied with word-by-word presentation, a condition that eliminates important aspects of the normal reading process and precludes direct comparisons between neural activity and oculomotor behavior. In the present study, we investigated effects of word predictability on eye movements (EM) and fixation-related brain potentials (FRPs) during natural sentence reading. Electroencephalogram (EEG) and EM (via video-based eye tracking) were recorded simultaneously while subjects read heterogeneous German sentences, moving their eyes freely over the text. FRPs were time-locked to first-pass reading fixations and analyzed according to the cloze probability of the currently fixated word. We replicated robust effects of word predictability on EMs and the N400 component in FRPs. The data were then used to model the relation among fixation duration, gaze duration, and N400 amplitude, and to trace the time course of EEG effects relative to effects in EM behavior. In an extended Methodological Discussion section, we review 4 technical and data-analytical problems that need to be addressed when FRPs are recorded in free-viewing situations (such as reading, visual search, or scene perception) and propose solutions. Results suggest that EEG recordings during normal vision are feasible and useful to consolidate findings from EEG and eye-tracking studies. (PsycINFO Database Record (c) 2011 APA, all rights reserved) 相似文献
215.
Xibin Shao Jianxin Cuo Sheng Wu Jianfeng Yuan Ximin Huang 《Journal of the Society for Information Display》1999,7(1):67-70
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. 相似文献
216.
Abstract— The design and construction of retardation films with any desired dispersion properties is reported. The method is simple and requires only conventional uniaxial retardation films. As an example, the design of retardation films which have constant retardation over the entire visible spectrum is demonstrated. The design methodology will be given. Specific design examples for broadband achromatic quarter‐wave and half‐wave retardation films are disclosed. These films show almost no wavelength dependence even at large viewing angles. 相似文献
217.
Huesmann L. Rowell; Moise-Titus Jessica; Podolski Cheryl-Lynn; Eron Leonard D. 《Canadian Metallurgical Quarterly》2003,39(2):201
Although the relation between TV-violence viewing and aggression in childhood has been clearly demonstrated, only a few studies have examined this relation from childhood to adulthood, and these studies of children growing up in the 1960s reported significant relations only for boys. The current study examines the longitudinal relations between TV-violence viewing at ages 6 to 10 and adult aggressive behavior about 15 years later for a sample growing up in the 1970s and 1980s. Follow-up archival data (N=450) and interview data (N=329) reveal that childhood exposure to media violence predicts young adult aggressive behavior for both males and females. Identification with aggressive TV characters and perceived realism of TV violence also predict later aggression. These relations persist even when the effects of socioeconomic status, intellectual ability, and a variety of parenting factors are controlled. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
218.
本文介绍了一种新型的摩擦技术——同心圆摩擦(简称CCR)方法。与普通STN液晶盒相比,CCR液晶盒具有宽而均匀的视角特性、低的阈值特性和快速响应特性。在液晶混合物中加入光聚合物,获得了稳定的CCR液晶盒。 相似文献
219.
LED视频显示屏的图像质量和视距 总被引:1,自引:0,他引:1
运用数字图像处理的基本理论。分析了LED显示屏及其重现的视频图像的空间频谱特性,说明了图像分辨率、锐度、混叠伪像与显示屏参数(包括点间距和填充系数)的关系。本文还着重讨论了LED视频显示屏的视距问题,得出相应的结论。 相似文献
220.
Hara Yumiko Tomomune Yumiko Shigemori Maki 《User Modeling and User-Adapted Interaction》2004,14(1):87-117
Although programpreferences can be characterized on the basis of demographic attributes like sex, age or occupation or by taking the cultural studies approach focused on ethnic or social traits, preferences for programs often differ among people of the same sex, age, occupation and social class. We think that nothing can describe subjects’ viewing preferences more accurately than what programs they had watched in the past. To verify our hypothesis, we surveyed the viewing behavior of more than 1,600 randomly chosen individuals, and utilized this data to analyze people’s program choices. We categorized the respondents by the similarity of the programs they had watched and examined the groupings that emerged and the features of these groups.From our analysis, it became clear that a ‘more/less serious’ and ‘more/less fictional’ axes are involved in program selection.Our results show that eight groups (stereotypes) explain viewers’ contact with television, their motivation for choosing programs to watch, and their interest in matters other than television. Applying these stereotypes to the process of program selection or recommendation will be useful for the future design of personalized adaptive systems. 相似文献