TRANSPARENT DISPLAY DEVICE INCLUDING A LIGHT CONTROLLING APPARATUS

TRANSPARENT DISPLAY DEVICE INCLUDING A LIGHT CONTROLLING APPARATUS

A light controlling apparatus, a method of fabricating the light controlling apparatus, and a transparent display device including the light controlling apparatus are disclosed, in which light may be transmitted or shielded using a polymer dispersed liquid crystal (PDLC) layer and a guest-host liqui...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: LEE, Moon Sun, AHN, Ji Young, KIM, Ki Han, KIM, Pu Reum
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BASIC ELECTRIC ELEMENTS
DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
FREQUENCY-CHANGING
NON-LINEAR OPTICS
OPTICAL ANALOGUE/DIGITAL CONVERTERS
OPTICAL LOGIC ELEMENTS
OPTICS
PHYSICS
SEMICONDUCTOR DEVICES
TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:A light controlling apparatus, a method of fabricating the light controlling apparatus, and a transparent display device including the light controlling apparatus are disclosed, in which light may be transmitted or shielded using a polymer dispersed liquid crystal (PDLC) layer and a guest-host liquid crystal (GHLC) layer, where the guest-host liquid crystal layer includes dichroic dyes. The light controlling apparatus (100) includes first and second substrates (110, 150) facing each other; a first electrode (120) on the first substrate (110); a second electrode (140) on the second substrate (150); and a polymer dispersed liquid crystal (PDLC) layer (131) and a guest-host liquid crystal (GHLC) layer (132) between the first electrode (120) and the second electrode (140), wherein the PDLC layer (131) includes droplets (131b) having first liquid crystals (131c), and the GHLC layer (132) includes second liquid crystals (132a) and dichroic dyes (132b).