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有源矩阵液晶显示的进展 总被引:4,自引:0,他引:4
在分析了无源矩阵驱动的局限性的基础上,叙述和比较了MIM薄膜二极管和a-Si薄膜晶体管有源矩阵液晶显示的结构、工作原理和特性,并讨论了它们的进展与发展方向。 相似文献
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本文从低功耗、高成品率、多灰度级、彩色滤色器高性能和宽视角等五个方面概要介绍有源矩阵液晶显示器近年来的发展动向。 相似文献
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Ren Zheng Lingling Ma Wei Feng Jintao Pan Zeyu Wang Zhaoxian Chen Yiheng Zhang Chaoyi Li Peng Chen Hari Krishna Bisoyi Bingxiang Li Quan Li Yanqing Lu 《Advanced functional materials》2023,33(38):2301142
Advances in biomimicry have led to the rise of advanced robotics, posing promising revolutions across a variety of fields. Programmable self-sustained actuation in nature, such as human's heart beating, bird's wingbeats, and penguin's waddling, are intriguing and inspiring but challenging for device innovation, which hinders the emergence of autonomous self-feedback applications, especially in optics and photonics. Herein, the design, fabrication, and operation of crosslinked liquid crystal actuators are described that combine the programming of microstructures and the engineering of macroscopic shape morphing for active optics and photonics. The actuators consist of twisted nematic liquid crystal molecules with both elastic and optical anisotropies, resulting in large bending deformations in response to heat. Programmable bending motions and self-sustained waddling oscillations are demonstrated, further contributing to the achievements of dynamic 2D beam steering and self-sustained light field modulation. It is envisioned that these actuators with self-sustained performances without requiring turning the stimulus on-off will find applications in autonomous active optical systems, photonic applications, as well as self-governing robotics with the core feature of thermo-mechanical-optical transduction. 相似文献
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本文提出了全集成单晶硅有源矩阵液晶光阀(c-Si AMLCLV)方案。从微电子和液晶显示技术的角度论证了该方案的可行性,给出了实现c-Si AMLCLV的技术途径以及采用该光阀的大屏幕液晶投影显示的系统构成。 相似文献
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介绍了南京电子器件研究所、华中理工大学和电子部47所三单位联合研制的7.6cm240(H)×220(V)单元a-SiTFT-LCD,简要论述了TFT矩阵板、行列驱动电路、彩色滤色器、液晶盒、离密度柔性引线带、控制引线电路等一系列关键技术。显示器的有效显示面积60mm×45mm,亮度≥50cd/m^2,时比度(最大值)约30:1,视角范围(对比度5:1):水平方向〉±40°,垂直方向〉±30°,灰度 相似文献
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本文报道了用于平板液晶显示(LCD)的氢化非晶硅薄膜晶体管(α-Si:H TFT)的研制结果,此晶体管开态电流约10~(-6)A,关态电流<10~(-11)A,开启电压~15V.用此α-Si:H TFT矩阵已封装出具有20×20个有效象素单元的液晶显示平板,并成功地实现了有源选址与动态显示功能.同时,对如何进一步提高TFT性能作了一些分析与讨论. 相似文献
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黑白7.5cm有源矩阵液晶显示器的改进 总被引:1,自引:1,他引:0
通过改进a-SiTFT遮光层工艺、液晶盒取向和封接工艺,使黑白7.5cm(3英寸)240(H)×220(V)单元a-SiTFT-LCD的对比度、灰度、视角、串扰等性能获得大的改善,显示图象质量明显提高。 相似文献
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Polyaniline (PANI) thin films with high optical activity are prepared electrochemically on indium tin oxide (ITO) substrates by polymerizing aniline in the presence of aniline oligomers and optically active camphor sulfonic acid (CSA). These optimized PANI chiral thin films have an anisotropic factor of 0.03 and an estimated molar ellipticity of 8.8 × 105 deg cm2 dmol–1, ~ 25 % higher than our previously synthesized chiral PANI nanofibers that were prepared using the chemical method. The thin film prepared without aniline oligomers is basically achiral. The electrochemical method does not require an oxidizing agent and allows control of the rate of polymerization reaction by varying the oxidation potential. The electrochemical polymerization also ensures that the initiation occurs solely with the oligomers. Varying the experimental parameters, such as oxidation potential and the choice of oligomers, allows tuning of optical activity, adsorption properties, crystallinity, and morphology of the PANI thin films. 相似文献
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本文描述了一种可显示灰度的反铁电液晶显示器。在AFLCD的矩阵驱动中,交替地使用了双滞回环的正边和负边,避免了净离子漂移影响和弹性稳定作用。 相似文献
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