A high transmittance color liquid crystal display mode with controllable color gamut and transparency

Mun, Byung-June; Kang, Wan Seok; Lee, Joun Ho; Choi, Hyun Chul; Kim, Byeong Koo; Kang, Bongsoon; Lim, Young Jin; Lee, Seung Hee; Lee, Gi‐Dong

doi:10.1364/oe.22.012505

Cited by 11 publications

(4 citation statements)

References 28 publications

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“…Further follow-up studies are needed to practically apply the cavity-aperture to a pixel structure of a display panel. First, the low transmittance of the multiplexed cavity-apertures is insufficient for displays, as the transmittance of the most widely used display pixels is generally between 5 and 10% (refs 16 , 17 ). Therefore, the nanostructure should be optimized to improve the transmittance.…”

Section: Discussionmentioning

confidence: 99%

Plasmonic cavity-apertures as dynamic pixels for the simultaneous control of colour and intensity

et al. 2015

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Despite steady technological progress, displays are still subject to inherent limitations in resolution improvement and pixel miniaturization because a series of colours is generally expressed by a combination of at least three primary colour pixels. Here we propose a structure comprising a metal cavity and a nanoaperture, which we refer to as a cavity-aperture, to simultaneously control the colour and intensity of transmitted light in a single pixel. The metal cavity constructs plasmonic standing waves to organize the spatial distribution of amplitudes according to wavelength, and the nanoaperture permits light with a specific wavelength and amplitude to pass through it, depending on the nanoaperature's relative position in the cavity and the polarization state of the incident light. Therefore, the cavity-aperture has the potential to function as a dynamic colour pixel. This design method may be helpful in developing various photonic devices, such as micro-imaging systems and multiplexed sensors.

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Section: Discussionmentioning

confidence: 99%

Plasmonic cavity-apertures as dynamic pixels for the simultaneous control of colour and intensity

et al. 2015

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“…Recently, see-through displays have attracted much attention as one of next-generation displays [1,2]. See-through displays have been actively studied using organic light-emitting diodes (OLEDs [3,4].…”

Section: Objective and Backgroundmentioning

confidence: 99%

P-142: Double-Layered Light Shutter using Polymer Dispersed Liquid Crystals and Dye-Doped Cholesteric Liquid Crystals

Beak

Heo

et al. 2016

SID Symposium Digest of Technical Papers

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“…So far, many studies have been reported on applying various technologies to transparent displays, mainly transparent displays using LCD and transparent displays using OLED devices [ 8 , 9 ]. In the case of a transparent LCD, it can be easily made transparent with full color [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

Hybrid-Type Transparent Organic Light Emitting Diode with High Contrast Using Switchable Windows

Choi

Lee

Choi

et al. 2023

IJMS

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Transparent organic light emitting diode (OLED) display is one of the most promising devices among next-generation information displays because of beneficial characteristics, such as self-emissive and optically clear properties. Nevertheless, in conventional transparent OLED display devices, there are serious intrinsic problems in terms of the transmittance in the dark state because of empty windows in the cell, so the contrast ratio of the transparent OLED display would be deteriorated even though it can exhibit excellent bright state. In general, the transparent mode using the OLED device applies an empty area in each pixel because an emitting device could never reveal the background image, so the transparent OLED should contain the empty area in the pixel for transparent images. This may cause the optical degradation in the dark state. To solve this problem, we propose hybrid-type transparent OLED display modes that apply a liquid crystal (LC) to the transparent window part of the empty space. In this paper, we applied two dichroic LC modes— which use an electrically controlled birefringence (ECB) mode (Heilmeier type) for the polarized mode and a cholesteric LC mode (Guest-Host mode) for the non-polarized mode—to the empty area. In each hybrid mode, we have observed optical performance, including the transmittance in the dark/bright state, contrast ratio and response time as a function of cell parameters. As a result, we confirmed that the dark state and the contrast ratio could be improved by applying the proposed modes without serious decay of the transmittance in the bright state.

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A high transmittance color liquid crystal display mode with controllable color gamut and transparency

Cited by 11 publications

References 28 publications

Plasmonic cavity-apertures as dynamic pixels for the simultaneous control of colour and intensity

Plasmonic cavity-apertures as dynamic pixels for the simultaneous control of colour and intensity

P-142: Double-Layered Light Shutter using Polymer Dispersed Liquid Crystals and Dye-Doped Cholesteric Liquid Crystals

Hybrid-Type Transparent Organic Light Emitting Diode with High Contrast Using Switchable Windows

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