Cholesteric Liquid Crystal Display With Flexible Glass Substrates

Garner, Sean; Wu, Kuan-Wei; Liao, Yuan; Shiu, Jyh‐Wen; Tsai, Yu Sheng; Chen, Kuan Ting; Lai, Yinchieh; Lai, Chun-Chun; Lee, Yuh-Zheng; Lin, Jen Chieh; Li, Xinghua; Cimo, Patrick

doi:10.1109/jdt.2013.2251860

Cited by 22 publications

(7 citation statements)

References 8 publications

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“…A principal reason for this has been the limited thermal capability of transparent plastic substrates, which have poor dimensional stability above 200 °C. However, thin glass substrates offer a favorable combination of excellent thermal stability ( T g ≈ 600 °C), ultrasmooth surface quality ( R a < 0.5 nm) for device fabrication, and reasonable flexibility, enabling many new applications and scalable R2R manufacturing methods for high performance materials requiring processing temperatures in the range of 400–600 °C. In addition to thermal stability, thin glass substrates provide mechanical flexibility, which is essential for facilitating R2R contact printing such as gravure .…”

Section: Introductionmentioning

confidence: 99%

Gravure-Printed Sol–Gels on Flexible Glass: A Scalable Route to Additively Patterned Transparent Conductors

Scheideler

Jang

Karim

et al. 2015

ACS Appl. Mater. Interfaces

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Gravure printing is an attractive technique for patterning high-resolution features (<5 μm) at high speeds (>1 m/s), but its electronic applications have largely been limited to depositing nanoparticle inks and polymer solutions on plastic. Here, we extend the scope of gravure to a new class of materials and on to new substrates by developing viscous sol-gel precursors for printing fine lines and films of leading transparent conducting oxides (TCOs) on flexible glass. We explore two strategies for controlling sol-gel rheology: tuning the precursor concentration and tuning the content of viscous stabilizing agents. The sol-gel chemistries studied yield printable inks with viscosities of 20-160 cP. The morphology of printed lines of antimony-doped tin oxide (ATO) and tin-doped indium oxide (ITO) is studied as a function of ink formulation for lines as narrow as 35 μm, showing that concentrated inks form thicker lines with smoother edge morphologies. The electrical and optical properties of printed TCOs are characterized as a function of ink formulation and printed film thickness. XRD studies were also performed to understand the dependence of electrical performance on ink composition. Printed ITO lines and films achieve sheet resistance (Rs) as low as 200 and 100 Ω/□, respectively (ρ≈2×10(-3) Ω-cm) for single layers. Similarly, ATO lines and films have Rs as low as 700 and 400 Ω/□ with ρ≈7×10(-3) Ω-cm. High visible range transparency is observed for ITO (86-88%) and ATO (86-89%). Finally, the influence of moderate bending stress on ATO films is investigated, showing the potential for this work to scale to roll-to-roll (R2R) systems.

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Section: Introductionmentioning

confidence: 99%

Gravure-Printed Sol–Gels on Flexible Glass: A Scalable Route to Additively Patterned Transparent Conductors

Scheideler

Jang

Karim

et al. 2015

ACS Appl. Mater. Interfaces

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“…Glass substrate suppliers have proposed another concept for thin panel manufacturing, shown in Fig. 2, which involves bonding a 0.2 mm thick glass substrate to a carrier glass substrate [3], [4]. This approach solves the problem of production line equipment being incapable of transporting glass substrates with thicknesses less than 0.3 mm.…”

Section: Novel Green Temporary Bonding and Separation Methods For Manumentioning

confidence: 99%

Novel Green Temporary Bonding and Separation Method for Manufacturing Thin Displays

Chen

Yang²

2020

IEEE J. Electron Devices Soc.

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“…It will enhance the properties of flexible monitors [1][2][3][4], touching sensor [5] and solar cell board [6][7][8][9] with the substrates changing from high polymer to flexible glass. Recent years, lots of researches are focused on the forming process of flexible glass sheet.…”

Section: Introductionmentioning

confidence: 99%

Simulation of the glass melt flowing during the slit down draw process

Cheng

Kang

et al. 2017

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. The three-dimensional numerical simulation of the glass melt flowing out from the slit was conducted by Semi-Implicit Method for Pressure Linked (SIMPLE) and volume of fluid (VOF) method with the software FLUENT. In this work, the effect of liquid level of glass melt, viscosity of glass melt, width and height of the slit on flow rate was investigated. The simulation results showed that the flow of glass melt was proportional to the height of the liquid surface and the square of the slit width, and inversely proportional to the viscosity of the glass melt and the height of the slit. It was concluded that high liquid level and low viscosity should be adopted in the drawing process of the flexible glass sheet. IntroductionThe flexible glass is a new type substrate material that is flexible, high transparent and resistant to high temperature and degradation. It will enhance the properties of flexible monitors [1-4], touching sensor [5] and solar cell board [6][7][8][9] with the substrates changing from high polymer to flexible glass. Recent years, lots of researches are focused on the forming process of flexible glass sheet. Slit down draw method is one of the basic forming methods in which the homogeneous glass metal made into sheets by flowing through a Pt alloy silt and then drawn by a gripping roller [10,11]. EGLASS Pt Technology Company in German has obtained a kind of flexible glass with 50um thickness by slit down draw method, at the same time, the Corning Company in America has produced Grade 7059 glass with the same technology. Since commercial reasons, all firms keep the process parameters secret strictly [12]. The most essential technology parameter in slit down draw method is the flow of glass melt which dominates the quality of flexible glass products [13]. The simulation software FLUENT was used to simulate the process of glass melt flowing through the Pt slit, and the influences of height of liquid surface, viscosity of glass melt, width and height of the slit on flow rate was investigated in this paper. Consequently, the effects of factors on glass melt outlet flow will conduct the manufacture of flexible glasses.

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Cholesteric Liquid Crystal Display With Flexible Glass Substrates

Cited by 22 publications

References 8 publications

Gravure-Printed Sol–Gels on Flexible Glass: A Scalable Route to Additively Patterned Transparent Conductors

Gravure-Printed Sol–Gels on Flexible Glass: A Scalable Route to Additively Patterned Transparent Conductors

Novel Green Temporary Bonding and Separation Method for Manufacturing Thin Displays

Simulation of the glass melt flowing during the slit down draw process

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