Reflective bistable nematic displays (BiNem®) fabricated by standard manufacturing equipment

Joubert, Cécile; Angelé, Jacques; Boissier, Alain; Pécout, Bertrand; Forget, Sandrine; Dozov, I.; Stoenescu, D; Lallemand, Simon; Lagarde, P.

doi:10.1889/1.1831709

Cited by 10 publications

(9 citation statements)

References 9 publications

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“…In the reflective mode, well suited for portable devices, the T texture, optically equivalent to a small rotatory power medium, is used to obtain the white state, whereas the U texture is used for the black state. 9 The switching between the two textures is obtained by breaking the anchoring of the liquid crystal 10,11 on one of the alignment layers.…”

Section: Binem ® Principlementioning

confidence: 99%

“…The BiNem ® switching mechanism from T to U and U to T textures is achieved by applying specific drive waveforms, 1,9 as shown in Fig. 7.…”

Section: Binem ® Lcd Modulementioning

confidence: 99%

“…8 Recently, we have demonstrated that BiNem ® (bistable nematic) displays offer bright reflective images, high resolution, and ultra-low power consumption. 9 In this paper, we compare the BiNem ® process with the STN process and describe the main steps of BiNem ® manufacturing, including cost considerations.…”

Section: Introductionmentioning

confidence: 99%

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BiNem® manufacturing process for mass production

Angelé¹,

Boissier²,

Lallemant³

et al. 2003

J Soc Info Display

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Abstract— As the need for high‐resolution ultra‐low‐power bistable displays grows, it is important to rapidly implement the mass‐production manufacturing of BiNem® LCDs. The cost‐effective approach for BiNem® manufacturing is based on using STN manufacturing process technologies since BiNem® and STN displays have a similar internal structure. The key differences between BiNem® and STN displays from a manufacturing point of view will be discussed. We show that industrial STN manufacturing equipment can be used to produce BiNem® LCDs at competitive costs. Reflective e‐book display modules with VGA resolution are produced in the pilot‐production series.

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Section: Binem ® Principlementioning

confidence: 99%

“…The BiNem ® switching mechanism from T to U and U to T textures is achieved by applying specific drive waveforms, 1,9 as shown in Fig. 7.…”

Section: Binem ® Lcd Modulementioning

confidence: 99%

See 1 more Smart Citation

BiNem® manufacturing process for mass production

Angelé¹,

Boissier²,

Lallemant³

et al. 2003

J Soc Info Display

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“…The most mature are cholestreric LCD, 6) zenital bistable device (ZBD), 7) and bistable nematic (BiNem). 8) Still the e-paper application of liquid crystals also suffers from the high level complexity of driving electronics, which often fails for flexible display due to the insufficient durability of flexible conductor and contact bonding. Besides, the recent price jump of the indium, which is mainly used for creation of transparent conductor layer, indium tin oxide (ITO), also increases the cost of all ITO containing devices.…”

Section: Introductionmentioning

confidence: 99%

Light Printing of Grayscale Pixel Images on Optical Rewritable Electronic Paper

Muravsky

Murauski

Chigrinov

et al. 2008

jjap

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The new principle of electronic paper that can display two-dimensional (2D) or even stereoscopic three-dimensional (3D) images was developed by us. We review the structure of the display unit that is the light printable rewritable matter with polarization dependent gray scale. It consists of one or two liquid crystal displays based on optical rewritable (ORW) technology. ORW display uses bare plastic or polarizers as substrates, while no conductor is required. Continuous grey image on ORW e-paper maintains proper performance even when the device is bent. The image is changed by light printer. We discuss and experimentally verify the possible design of the light printer device based on polarization rotation. Alternative designs based on twist nematic (TN) or ferroelectric liquid crystals (FLC) operational element are also suggested. Simple construction provides durability and low cost of the ORW e-paper concept, while amazing possibility of 3D picture on ORW electronic paper is principally proved.

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“…We have already presented a brief description of the BiNem ® optical modes and the performance of BiNem ® prototypes in the reflective mode. 4,5 In this paper, we focus on optimizing two-polarizer cell configurations with the goal of achieving the best optical performance for displays used either in transmission or in reflection. Best performance includes considerations such as contrast ratio and color shift over a wide range of viewing angles, both of which were not included in previous optimizations that only considered maximum luminance at normal incidence as a metric.…”

Section: Introductionmentioning

confidence: 99%