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zww8623金蟲 (小有名氣)
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隨著液晶顯示技術(shù)的迅速發(fā)展，TFT-LCD已稱為液晶顯示的主流，但是視頻中的動(dòng)畫殘影、拖尾等問(wèn)題依然沒(méi)有解決，造成這一現(xiàn)象的主要原因是液晶響應(yīng)速度慢。液晶材料的黏度直接決定了液晶顯示器的響應(yīng)速度。向列相液晶的低溫黏度很大，使得響應(yīng)速度很慢，制約了液晶顯示器的性能和使用范圍。因此，開(kāi)發(fā)具有低黏度的液晶材料，受到人們廣泛的重視。 二氟亞甲氧基類液晶是20 世紀(jì)80 年代末期開(kāi)發(fā)出的一類含氟液晶化合物，該官能團(tuán)的引入，大幅度降低了黏度，縮短液晶的響應(yīng)時(shí)間，對(duì)改善液晶低溫顯示性能非常有益，是近年來(lái)所發(fā)現(xiàn)的綜合性能最突出的液晶化合物之一。 本文共設(shè)計(jì)合成了合成出了nPTPdFOPF、nPTPdFOGF和nUPdFOPF三個(gè)系列共11個(gè)二氟亞甲氧基類液晶化合物，均為見(jiàn)文獻(xiàn)報(bào)道�；衔锝�(jīng)過(guò)1HNMR、13CNMR、19FNMR、MS、IR譜圖表征和元素分析，確認(rèn)了化合物結(jié)構(gòu)。通過(guò)差示掃描量熱儀(DSC)測(cè)量了相變溫度，表明都有明顯的液晶性質(zhì)，且相態(tài)都比較寬，隨著側(cè)位氟原子的引入，熔點(diǎn)和清亮點(diǎn)都有明顯降低。通過(guò)AR500液體流變儀測(cè)量了化合物黏度隨溫度溫度的變化曲線，其結(jié)果表明二氟亞甲氧基類液晶化合物低溫黏度非常小，低溫黏度對(duì)溫度的依賴性很小，綜合性能十分優(yōu)異。 |
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wshbinzhang
鐵桿木蟲 (知名作家)
- 翻譯EPI: 3
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- 金幣: 7807.3
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- 蟲號(hào): 478725
- 注冊(cè): 2007-12-14
- 專業(yè): 結(jié)構(gòu)陶瓷
【答案】應(yīng)助回帖
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隨著液晶顯示技術(shù)的迅速發(fā)展，TFT-LCD已稱為液晶顯示的主流，但是視頻中的動(dòng)畫殘影、拖尾等問(wèn)題依然沒(méi)有解決，造成這一現(xiàn)象的主要原因是液晶響應(yīng)速度慢。 With the rapid development of LCD technology, TFT-LCD has become the mainstream in liquid crystal displays, but the problems of video animation blur, streaking, etc. remain unresolved, which is due to the slow response speed of LCDs. 液晶材料的黏度直接決定了液晶顯示器的響應(yīng)速度。 The viscosity of liquid crystal material directly determines the response speed of LCDs. 向列相液晶的低溫黏度很大，使得響應(yīng)速度很慢，制約了液晶顯示器的性能和使用范圍。 The viscosity of nematic liquid crystal is very high at low temperatures, resulting in the slow response speed and restricting the performance and application of LCDs. 因此，開(kāi)發(fā)具有低黏度的液晶材料，受到人們廣泛的重視。 Therefore, it has been attracted great attention for developing new liquid crystal materials with low viscosity. |
2樓2011-05-28 07:04:28
wshbinzhang
鐵桿木蟲 (知名作家)
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- 專業(yè): 結(jié)構(gòu)陶瓷
【答案】應(yīng)助回帖
zww8623(金幣+100, 翻譯EPI+1): 太及時(shí)了 很不錯(cuò) 大哥還有一段啊 您繼續(xù)啊 謝謝了 2011-05-28 07:35:20
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二氟亞甲氧基類液晶是20 世紀(jì)80 年代末期開(kāi)發(fā)出的一類含氟液晶化合物，該官能團(tuán)的引入，大幅度降低了黏度，縮短液晶的響應(yīng)時(shí)間，對(duì)改善液晶低溫顯示性能非常有益，是近年來(lái)所發(fā)現(xiàn)的綜合性能最突出的液晶化合物之一。 Difluoro sub methoxy is a class of fluorinated liquid crystal compounds developed in 1980s. The introduction of fluorinated functional groups can significantly reduce the viscosity and the response time of LCDs, which is of benefit to low-temperature performance of LCDs. Therefore, difluoro sub methoxy is one of the most prominent compounds found in recent years with the salient overall performance |
3樓2011-05-28 07:17:20
wshbinzhang
鐵桿木蟲 (知名作家)
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【答案】應(yīng)助回帖
★ ★ ★
zww8623(金幣+50): 謝謝了 2011-05-28 07:55:48
Mally89(金幣+3): 感謝應(yīng)助！~歡迎常來(lái)！~ 2011-05-28 20:03:28
zww8623(金幣+50): 謝謝了 2011-05-28 07:55:48
Mally89(金幣+3): 感謝應(yīng)助！~歡迎常來(lái)！~ 2011-05-28 20:03:28
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本文共設(shè)計(jì)合成了合成出了nPTPdFOPF、nPTPdFOGF和nUPdFOPF三個(gè)系列共11個(gè)二氟亞甲氧基類液晶化合物，均為見(jiàn)文獻(xiàn)報(bào)道。 Three series of nPTPdFOPF, nPTPdFOGF and nUPdFOPF including 11 difluoro sub methoxy liquid crystal compounds were successfully designed and synthesized in this research, which could be found in Ref. 1-10. 化合物經(jīng)過(guò)1HNMR、13CNMR、19FNMR、MS、IR譜圖表征和元素分析，確認(rèn)了化合物結(jié)構(gòu)。 The structure of these as-synthesized compounds are identified and confirmed through the spectra characterization and elemental analysis of 1HNMR, 13CNMR, 19FNMR, MS, IR. 通過(guò)差示掃描量熱儀(DSC)測(cè)量了相變溫度，表明都有明顯的液晶性質(zhì)，且相態(tài)都比較寬，隨著側(cè)位氟原子的引入，熔點(diǎn)和清亮點(diǎn)都有明顯降低。 The results of phase transition temperature measurement by differential scanning calorimetry (DSC) show the obvious liquid crystal properties of these as-synthesized compounds with wide range of liquid phases. The introduction of lateral fluorine atoms significantly reduces the melting and clearing points. 通過(guò)AR500液體流變儀測(cè)量了化合物黏度隨溫度溫度的變化曲線，其結(jié)果表明二氟亞甲氧基類液晶化合物低溫黏度非常小，低溫黏度對(duì)溫度的依賴性很小，綜合性能十分優(yōu)異。 The dependence of viscosity with temperature measured by AR500 liquid rheometer shows excellent overall performance because the viscosity of fluoride sub-methoxy liquid crystal compounds is very small at low temperatures and the viscosity is dependent of temperature. |
4樓2011-05-28 07:34:55
liqi9673
木蟲 (正式寫手)
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【答案】應(yīng)助回帖
zww8623(金幣+150): 很好啊 謝謝 2011-05-28 07:55:35
Mally89: 感謝應(yīng)助！~歡迎常來(lái)！~ 2011-05-28 20:03:33
Mally89: 感謝應(yīng)助！~歡迎常來(lái)！~ 2011-05-28 20:03:33
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With the rapid development of liquid crystal display technology,TFT-LCD has been called the mainstream of liquid crystal display (LCD),but the problems as the animation remnants of video and trailing still are not solved , the main reason caused by this phenomenon is the speed of response of LCD is slow.The viscosity of liquid crystal material directly determines the response speed of LCD.The column phase liquid crystal viscosity is great in low temperature , making the response speed greatly slow, restricting the LCD monitor the performance and the application scope.Therefore, the development of liquid crystal materials with low viscosity receives people's attention. Two fluorine sub-methoxy LCD is developed a kind of containing fluorine liquid crystal compounds in the late 1980s,the introduction of the functional groups, reduced the viscosity, shorten the response time, improving liquid crystal display performance in low temprature is very beneficial, is one of the most outstanding for the comprehensive performance of the liquid crystal compounds in recent years. The paper has designed and synthesized nPTPdFOPF, nPTPdFOGF and a nUPdFOPF three series which are total 11 two fluorine sub-methoxy classes of LCD compounds, are reported in the literature.Through 1HNMR, 13CNMR, 19FNMR, MS, IR spectra characterizing and elemental analysis compound structure is confirmed .By (DSC) measuring the phase-change temperatures, shows that there are obviously LCD properties and morphology is wide, with the introduction of fluorine atoms lateral status, melting point and clearing point have significantly reduced.Through the AR500 liquid rheometry measuring temperature curve of compounds viscosity changing with temperature , and the results show that the viscosity of two fluorine sub-methoxy class liquid crystal compounds, is very tiny in low temperature,low viscosity is tiny to the dependence on temperature, comprehensive performance is very excellent. |
5樓2011-05-28 07:36:27
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