To provide a liquid crystal-based light control member capable of minimizing local discoloration and rainbow unevenness.SOLUTION: A light control member 20 is provided, comprising a pair of transparent base materials 21, 22, a light control cell 30 disposed between the pair of transparent base materials, and two bonding layers 23, 24 that are disposed between the light control cell and respective transparent base materials to bond the transparent base materials to the light control cell. The light control cell has a visible light transmittance that is adjustable by electronic control. The bonding layers have a storage modulus of 6×10Pa or less in a temperature range of 1 to 30°C, inclusive.SELECTED DRAWING: Figure 2
【課題】液晶を利用した調光部材における局所的な変色や虹ムラの発生を抑制する。【解決手段】調光部材20は、一対の透明基材21,22と、一対の透明基材の間に配置された調光セル30と、透明基材と調光セルとの間に配置され、透明基材と調光セルとを接合する2つの接合層23,24と、を備える。調光セルは、電子制御により可視光透過率を調節可能である。接合層の貯蔵弾性率は、1℃以上30℃以下で、6×106Pa以下である。【選択図】図2
LIGHT CONTROL MEMBER, SUN VISOR, AND MOVABLE BODY
調光部材、サンバイザ及び移動体
2020-08-27
Patent
Electronic Resource
Japanese
IPC: | G02F DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING,... , Vorrichtungen oder Anordnungen, deren optische Arbeitsweise durch Änderung der optischen Eigenschaften des Mediums der Vorrichtungen oder Anordnungen geändert wird zum Steuern der Intensität, Farbe, Phase, Polarisation oder der Richtung von... / B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES , Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge / C09J ADHESIVES , Klebstoffe |
European Patent Office | 2018
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