P‐124: Bending Shift Free Plastic Liquid Crystal Display

Huang, Tzung Chi; Chen, Zhenghan; Li, Wenyuan; Chiu, Pin-Hsiang; Chiu, Wei-Ju; Lu, Jen‐Kuei; Sugiura, Norío

doi:10.1002/sdtp.11997

Cited by 9 publications

(7 citation statements)

References 9 publications

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“…There is a possibility that densely-aggregated polymer is destructed by shearing stress. Curvature radius of 20mm was required for the application of automotive displays 5) . For further improvement of flex durability, more strong interaction among polymer networks is required.…”

Section: Flex Durabilitymentioning

confidence: 99%

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[Paper] Low-Temperature Processed Interdigitated Polymer Spacer on Plastic Substrate Using Structural Transfer Method for Flexible Liquid Crystal Displays

Shibata

Minami

Ishinabe

et al. 2019

MTA

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show abstract

Section: Flex Durabilitymentioning

confidence: 99%

“…1(b)). 3)-5) Such structures have been made using techniques including thermal nanoimprinting 3)4) and photolithography 5) . However, a thermal process is not suitable for roll-to-roll processing of flexible LCDs due to the generally poor thermal stability of the plastic substrates; a low-temperature printing process is thus required.…”

Section: Introductionmentioning

confidence: 99%

[Paper] Low-Temperature Processed Interdigitated Polymer Spacer on Plastic Substrate Using Structural Transfer Method for Flexible Liquid Crystal Displays

Shibata

Minami

Ishinabe

et al. 2019

MTA

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show abstract

“…In automotive application, 13,14 the curvature usually stays between R 50 and R 1000 3 . In consideration of cost, functionality, and manipulability, different substrates are applied for the curved LCD panels, such as metal foil, 15–17 ultra‐thin glass, 18 and plastic substrate, 19–21 but the ultra‐thin glass (0.4‐mm thickness or thinner) and colorless polyimide (PI) substrates are the most popular substrates for the curved display due to their high transmittance, good thermal stability, and chemical resistivity. The LCD panels with small curvature require colorless polyimide substrate owing to its flexibility.…”

Section: Introductionmentioning

confidence: 99%

Curved vertical‐alignment liquid crystal display with uniform brightness: From pixel design to verification

Cao¹,

Chen²,

Du³

et al. 2020

J Soc Info Display

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Curved liquid crystal display (LCD) suffers from an issue of uneven brightness among the vertical-alignment LCD panels based on thin glass substrates. In this work, we investigated its origin through optical simulation and successfully realized uniform brilliance for 27-inch curved LCD panels. The optical simulation revealed that the dark areas on the bending sides of the curved LCD panel originated from the reduced azimuth angle of the liquid crystals (LC) next to the ITO trunk. This issue could be resolved by decreasing the pretilt angle of the LC on the color filter side. Through developing pretilt angle tuning technologies, we experimentally verified that the uniform brilliance could be achieved for 27-inch curved LCD panels with 900-mm curvature on thin glass substrates. K E Y W O R D S curved LCD, optical simulation, pretilt angle, uniform brightness

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“…The concept of placing the most fragile layers closed to the neutral plane of the devices to increase the reliability of flexible devices has been attempted 14 . To overcome the upper and bottom substrate alignment shift during bending stress, a particular cell structure design using in plastic liquid crystal display has also been attempted 15 …”

Section: Introductionmentioning

confidence: 99%

Deformation‐induced stress/strain mapping and performance evaluation of a‐IGZO thin‐film transistors for flexible electronic applications

2020

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In the flexible electronics sector, there is an urgent need for higher performance, and hence, many new technologies are emerging in recent years. The field of organic and printed electronics allows low production costs and large areas. The silicon technology allows nanometric resolutions and better performance. A new technology CAD (TCAD)‐based design methodology is needed to combine both mechanical flexibility and high performance. This work presents a predictive TCAD calibration methodology for indium‐gallium‐zinc‐oxide thin‐film transistors (TFTs), employing physics‐based modeling to support and enhance simulation‐based device development. In this work, based on the nonlinear finite element technique, a TCAD framework has been developed to introduce different types of large deformations and obtain the local stress/strain profiles (mapping) inside the devices. The impacts of various kinds of deformations on the electrical characteristics of the strained TFTs are studied. The feasibility (via predictions) for amorphous‐indium‐gallium‐zinc‐oxide (a‐IGZO) TFTs, combining considerable mechanical flexibility, high electrical performance, and finally, excellent stability under deformation, may be useful for mechanical deformation‐aware design and modeling for highly flexible electronics. To the best of our knowledge, the highest cutoff frequency (fT > 690 MHz) possible for strain‐engineered a‐IGZO TFTs is predicted in entirely flexible technologies that can be used to realize active transceivers operating in the MHz regime.

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P‐124: Bending Shift Free Plastic Liquid Crystal Display

Cited by 9 publications

References 9 publications

[Paper] Low-Temperature Processed Interdigitated Polymer Spacer on Plastic Substrate Using Structural Transfer Method for Flexible Liquid Crystal Displays

[Paper] Low-Temperature Processed Interdigitated Polymer Spacer on Plastic Substrate Using Structural Transfer Method for Flexible Liquid Crystal Displays

Curved vertical‐alignment liquid crystal display with uniform brightness: From pixel design to verification

Deformation‐induced stress/strain mapping and performance evaluation of a‐IGZO thin‐film transistors for flexible electronic applications

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