【摘要】：伴隨著現(xiàn)代化的發(fā)展,顯示器件在這一潮流中得到了飛速發(fā)展,以液晶顯示器為代表的新一代平板顯示器件迅速進(jìn)入人們的生活。隨著“家電下鄉(xiāng)”等政策的出臺,液晶產(chǎn)品擁有量不斷增大和使用的普及,人們對液晶顯示產(chǎn)品在響應(yīng)時間,對比度,廣視角及低功耗等方面的顯示品質(zhì)上,也提出了更高的要求。如今響應(yīng)時間、殘像等顯示特性已成為全世界學(xué)術(shù)研究的重點。液晶分子在玻璃基板表面液晶取向?qū)由系牟煌帕兄苯佑绊懼@示功能,而液晶配向?qū)幼鳛橐壕У幕d層與液晶直接接觸。因此,液晶配向?qū)颖砻嬉壕Х肿拥呐挪家欢ǔ潭壬鲜芘湎驅(qū)有阅艿挠绊?進(jìn)而,顯示器的對比度、響應(yīng)時間等顯示特性也受到影響。本文主要針對TN產(chǎn)品液晶配向?qū)映赡ず蟮奶匦宰隽讼嚓P(guān)研究。首先,分析了PI膜面形成的各工藝條件與預(yù)傾角的影響關(guān)系;其次,在不同工藝條件下制成不同配向膜產(chǎn)品,通過殘像及響應(yīng)時間等光學(xué)測試,分析了不同工藝條件下制成的PI膜特性對殘像及響應(yīng)時間等顯示特性的影響關(guān)系。然后,在液晶動力學(xué)理論基礎(chǔ)上,結(jié)合預(yù)傾角與響應(yīng)時間的理論關(guān)系和液晶盒響應(yīng)時間的實驗結(jié)果,分析了液晶配向?qū)訉σ壕ы憫?yīng)方面的影響作用。通過本文的相關(guān)研究發(fā)現(xiàn),配向膜的厚度和熱處理對殘像和響應(yīng)時間有一定的影響。當(dāng)配向膜的厚度偏低時,會出現(xiàn)輕微的線殘像;熱處理溫度和時間不足時,會出現(xiàn)輕微的線殘像,同時響應(yīng)時間會隨著預(yù)傾角的減小而變快。這在一定程度上為殘像和響應(yīng)時間的研究添增了新的視野。
[Abstract]:With the development of modernization, display devices have been rapidly developed in this trend. The new generation of flat panel display devices, represented by liquid crystal displays, are rapidly entering people's lives. With the introduction of policies such as "Home Appliance going to the Countryside", the quantity of liquid crystal products has been increasing and the use of liquid crystal products has been popularized. The display quality of liquid crystal display products in response time, contrast, wide viewing angle and low power consumption has been improved. Higher demands have also been put forward. Now response time, residual image and other display characteristics have become the focus of academic research all over the world. The different alignment of liquid crystal molecules on the liquid crystal orientation layer on the glass substrate directly affects the display function, and the liquid crystal alignment layer acts as the substrate carrier layer of the liquid crystal directly in contact with the liquid crystal. Therefore, the distribution of liquid crystal molecules on the surface of the liquid crystal alignment layer is affected to some extent by the performance of the orientation layer, and the display characteristics such as contrast and response time are also affected. In this paper, the characteristics of liquid crystal film of TN were studied. Firstly, the relationship between the technological conditions of Pi film surface formation and predip angle was analyzed. Secondly, the different orientation film products were prepared under different process conditions, and the residual image and response time were measured. The influence of Pi film characteristics on the display characteristics of residual image and response time was analyzed. Then, based on the theory of liquid crystal dynamics and the theoretical relationship between predip angle and response time and the experimental results of liquid crystal cell response time, the effect of liquid crystal alignment layer on liquid crystal response is analyzed. It is found that the thickness of the film and the heat treatment have a certain influence on the residual image and response time. When the thickness of the film is on the low side, there will be a slight line remnant, and when the heat treatment temperature and time are insufficient, the line remnant will appear slightly, and the response time will become faster with the decrease of the predip angle. To some extent, it adds a new field of vision for the study of residual images and response time.
【學(xué)位授予單位】：上海交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TN873

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本文編號：2143317