JPS5876816A - Production of electrochromic display body for patterned displaying - Google Patents

Abstract

PURPOSE:To permit easy patterning of color developing layers by forming patterned non-color developing layers within the solid color developing layers by using a moisture curing reacting agent such as cyanoacrylate. CONSTITUTION:A transparent electrode layer A, a reversibly electrolytically oxidizable or reducible transparent thin film B, a transparent ion conductor layer C, a reversibly electrolytically oxidizable or reducible transparent thin film D, and a transparent counter electrode layer E are laminated to constitute a display body. A moisture curing reacting agent F which cures by reacting chemically with water, for example, cyanoacrylate or polyisocyanate, is coated in desired pattern shapes on at least one surface of the layer B or D of such display body facing the electrode layer to impregnate the agent F in the layer B or D and is allowed to react with the water in the color developing layer, so that non-color developed layers F' are formed. The layers B, D are of such that when one of the layer is oxidized the other is reduced. For example, tungsten oxide or the like is used for the B which is one of said layers and nickel hydroxide or the like is used for the other D.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing an all-solid-state electrochromic display that displays various patterns.

Conventional manufacturing methods, particularly patterning methods, for this type of display include: (1) a method of patterning the electrode itself;
A method is used in which a solid coloring layer is patterned using a photoresist method. However, in method (2), the electrode lead wires for any pattern are complicated, and the
The method described above requires a large number of steps to manufacture, and has disadvantages in terms of manufacturing cost and the directivity of the coloring layer being adversely affected by the protrusion of the resulting pattern.

The present invention provides a novel patterning method that overcomes the above-mentioned drawbacks. The new feature is that the solid coloring layer is molybdenum oxide, tungsten oxide, nilagel hydroxide, iridium hydroxide,
Focusing on the fact that ruthenium hydroxide, chromium hydroxide, rhodium hydroxide, etc. develop color when combined with the action of an appropriate amount of water (H!O) contained inside, they absorb an appropriate amount of water (HzO). A moisture curing reactant such as cyanoacrylate or polyisocyanate that is chemically cured is impregnated into the coloring layer, and water (H2O) in the impregnated portion of the coloring layer is erased to form a non-coloring layer for pattern display. It is a point made with the body.

An embodiment of the present invention will be described in detail below.

In Figure 1, the display body is a transparent electrode layer (A), a transparent thin film (B) capable of reversibly electrolytically oxidizing or reducing, a transparent ionic conductor layer (C), and a transparent electrode layer (A) capable of reversibly electrolytically oxidizing or reducing. A reactive transparent thin film) and a facing transparent electrode layer (E) are laminated, and when one of the thin films (8) and [F]) is oxidized, the other is reduced; The other is oxidized, and at least one of (CB) and (CB) is colored by electrolytic oxidation or reduction reaction. As the transparent electrode layer material, for example, NESA (Snow), indium oxide, indium oxide mixed with ITOcsss degree of Snow, copper iodide, gold, etc. are used. , C
Lamination is performed using a thin film formation technique such as the VD method.

The appropriate thickness of this electrode layer is 0.01~0.spm.

Further, the electrolytically reducible substance used as one of the thin films (B) and (9) includes, for example, tungsten oxide, molybdenum oxide, or a mixture thereof. These exemplified substances are colored by an electrolytic reduction reaction.

On the other hand, electrolytically oxidizing substances used as the other one of thin film color) or [F]) include, for example, nickel monohydroxide,
Iridium hydroxide, ruthenium hydroxide, chromium hydroxide,
Examples include rhodium hydroxide.

These exemplified substances are colored by electrolytic oxidation reaction.

(O can be anything that allows protons to pass through but blocks electrons, such as tantalum oxide, zirconium oxide, niobium oxide, alumina, etc.) There are yztrium etc.

Incidentally, the display body used in the present invention can be used in accordance with the above-mentioned Examples (r)-(without limitation)--color(s)-(g)) or fA)-a))-
The structure (E) may also be used.

Next, the method of the present invention for forming a pattern display layer on the transparent thin film (B) or M), which is a coloring layer, will be explained in detail with reference to FIGS. 2 and 3. First, on at least one surface facing the electrode layer (03) of the coloring layer (B) or [F]) containing an appropriate amount of water (HzO), a moisture curing reactant (which hardens through a chemical reaction with water) is applied. F) Applying, for example, cyanoacrylate or polyisocyanate in the desired pattern as shown in FIG.

The applied reactant (the barrel is impregnated into the coloring layer (B) or (2) as shown in Figure 6 depending on the shape of the coating over time,
It reacts with water in the coloring layer and hardens to form a non-coloring layer (Fl). As a result, the coloring layer can be patterned. By applying a predetermined voltage to the electrode layer (Al(E)) of the display body manufactured in this manner, pattern display can be performed.

As described above, according to the present invention, the coloring layer can be patterned using an extremely simple method.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a display body made by the patterning method of the present invention, and FIGS. 2 and 3 are explanatory diagrams of the patterning method of the present invention. A, E: ·, Electrode layer B: For example, tungsten oxide C: Ionic conductor layer D: For example, chive hydroxide 1 Applicant: Takao Watanabe, Agent of Nippon Kogaku Kogyo Co., Ltd.

Claims (1)

[Claims] In an electrochromic element having a solid coloring layer of tungsten oxide, molybdenum oxide, nilagel hydroxide, iridium hydroxide, ruthenium hydroxide, chromium hydroxide, di-dium hydroxide, etc. between at least the electrode layers (A, E). , A moisture agglomeration reactant such as patterned cyanoacrylate or polyincyanate is coated on at least the 10,000 surface facing the electrode layer of the solid color forming layer, and a bait solid is applied according to the shape of the coated reactant. A method for producing a patterned electrochromic display, which comprises impregnating the reactive agent into a coloring layer to form a non-coloring layer.