公开(公告)号：US3806229A

公开(公告)日：1974-04-23

申请号：US15587171

申请日：1971-06-23

Applicant: PHILIPS CORP

Inventor： SCHOOT C ,  PONJEE J

IPC: C07D213/22 ,  C09K3/00 ,  C09K9/02 ,  G02F1/15 ,  G02F1/28 ,  G02F1/26

CPC classification number: C07D213/22 ,  C09K9/02 ,  G02F1/1521

Abstract: The invention relates to an image display apparatus provided with at least two electrodes to which a direct voltage or a square-wave or alternating voltage may be applied. The electrodes are in contact with a solution of a reversible reducible organic substance of the formula I and an adjuvant. Suitable adjuvants are substituted hydroquinones, ferrous salts and 1,4-di (dialkylamino) benzenes. When the voltage is applied compounds of the formula I are reduced to intensely coloured radical ions. Oxidation of the adjuvant takes place at the anode.

Abstract translation: 本发明涉及一种具有至少两个电极的图像显示装置，可以施加直流电压或方波或交流电压。 电极与式I的可逆可还原有机物质和佐剂的溶液接触。 合适的佐剂是取代的氢醌，亚铁盐和1,4-二（二烷基氨基）苯。 当施加电压时，式I的化合物被还原成强烈着色的自由基离子。 佐剂的氧化在阳极进行。

公开(公告)号：US3854794A

公开(公告)日：1974-12-17

申请号：US31382272

申请日：1972-12-11

Applicant: PHILIPS CORP

Inventor： VAN DAM H ,  PONJEE J ,  SCHOOT C

IPC: C09K9/02 ,  G02F1/15 ,  G02F1/17 ,  G09F9/30 ,  G02F1/28

CPC classification number: G02F1/1521 ,  C09K9/02

Abstract: An image display cell having a transparent wall portion, electrodes and an oxidizable redox substance and a reducible redox substance in an electrochemically inert liquid in contact with electrodes. The cell includes at least two electrodes which are in contact with a cell liquid in which a colourless viologen salt (formula I) has been dissolved. When a potential difference of at least 0.5 Volt is applied to the electrodes, this salt is reduced to a coloured insoluble compound which adheres to the cathode, so that the latter is coloured, thereby producing an image.

Abstract translation: 具有与电极接触的电化学惰性液体中具有透明壁部分，电极和可氧化氧化还原物质和可还原氧化还原物质的图像显示单元。 细胞包括至少两个与其中溶解有无色紫精盐（式I）的细胞液接触的电极。 当向电极施加至少0.5伏特的电位差时，该盐被还原成粘附到阴极上的着色不溶性化合物，使得其被着色，从而产生图像。