Past, present, and future of fringe-field switching-liquid crystal display

Kim, Dae Hyung; Lim, Young Jin; Kim, Da Eun; Ren, Hongwen; Ahn, Seon Hong; Lee, Seung Hee

doi:10.1080/15980316.2014.914982

Cited by 94 publications

(40 citation statements)

References 17 publications

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“…[1][2][3][4][5][6][7] In the FFS LCDs, the electro-optics strongly depends on the sign of the dielectric anisotropy of an LC such that an LC with positive dielectric anisotropy (+LC) has advantages in lower operating voltage and faster response time than those with an LC with negative dielectric anisotropy (-LC). [8] However, the FFS LCDs with -LC shows higher transmittance and better fieldinduced dynamic stability than those with +LC.…”

Section: Introductionmentioning

confidence: 99%

Role of the elastic constants of a liquid crystal with positive dielectric anisotropy in the electro-optic characteristics of fringe-field switching mode

Jin

Kim

et al. 2015

Liquid Crystals

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2015): Role of the elastic constants of a liquid crystal with positive dielectric anisotropy in the electro-optic characteristics of fringe-field switching mode, Liquid Crystals, We investigated how the electro-optic characteristics of the fringe-field switching (FFS) liquid crystal (LC) mode are affected by elastic constants of LCs. Unlike conventional liquid crystal (LC) devices, in which mainly the dielectric torque determines reorientation of LC, the field-induced LC reorientation in the fringe-field switching (FFS) mode is controlled first by dielectric torque and then by pure elastic torque between LCs so that the transmittance oscillates along the electrode positions. We find that elastic constants of the LC play an important role on the field-induced dynamics of the LC molecules such that the higher the splay constant is, the higher the light efficiency becomes, which is a unique characteristic of the FFS mode. The results present an important design of physical properties of LC to enhance better transmittance in the FFS mode.

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Section: Introductionmentioning

confidence: 99%

Role of the elastic constants of a liquid crystal with positive dielectric anisotropy in the electro-optic characteristics of fringe-field switching mode

Jin

Kim

et al. 2015

Liquid Crystals

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“…이러한 단점을 극복하는 방안으로 다중 도메인 수직배향(MVA: Multidomain Vertical Alignment) LCD 가 제안되었고 기판에 유전율 이방성(Δε)이 음인 액정이 수 직으로 배열되어 있고 경사전기장이나 고분자 돌기를 이용 하여 전압 인가시 교차된 편광자의 투과축과 45도 어긋나게 4방향으로 액정을 눕히는 광시야각을 구현하였다 [8,9] . [10][11][12][13][14][15][16] . 광변조 관점에 서 보더라도 이 기술은 종래와 차이점이 있는데 종래 제안된 액정 기술은 편광회전방식이나 위상지연 방식 중 둘 중 하나 만 적용되어 흑상태 나 백상태를 표현하는데 FFS에서는 전 극 위치에 따라 위상지연 방식과 편광회전 방식이 동시에 존 재하는 특징을 가지고 있다.…”

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Electro-optic Characteristics of the Fringe-Field Switching Liquid Crystal Mode, Status of Applications, and Future Issues (Invited Paper)

Lim¹,

Kim²,

Kim³

et al. 2014

Korean Journal of Optics and Photonics

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Recently, the fringe-field switching (FFS) mode in liquid crystal displays has been used mainly for high image quality and high-resolution liquid crystal displays (LCDs). In this review paper, the fundamental switching principle of the FFS mode, with its excellence over other LC modes in electro-optic performance, will be described. In addition, the development history, present technical issues, and future of the FFS LCD will be discussed.

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“…To enhance the transmittance of the IPS mode, the fringefield switching (FFS) mode has been proposed [10][11][12][13]. The FFS mode exhibits higher transmittance than the IPS mode.…”

Section: Introductionmentioning

confidence: 99%

Negative Liquid Crystal Cell with Parallel Patterned Electrodes for High Transmittance and Fast Switching

Heo¹,

Choi²,

Huh³

et al. 2015

Journal of the Optical Society of Korea

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Past, present, and future of fringe-field switching-liquid crystal display

Cited by 94 publications

References 17 publications

Role of the elastic constants of a liquid crystal with positive dielectric anisotropy in the electro-optic characteristics of fringe-field switching mode

Role of the elastic constants of a liquid crystal with positive dielectric anisotropy in the electro-optic characteristics of fringe-field switching mode

Electro-optic Characteristics of the Fringe-Field Switching Liquid Crystal Mode, Status of Applications, and Future Issues (Invited Paper)

Negative Liquid Crystal Cell with Parallel Patterned Electrodes for High Transmittance and Fast Switching

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