Electrochromic display element, display device, information system, and electrochromic dimming lens

Patent metadata

Field	Value
Publication number	US-9829762-B2
Application number	US-201514704345-A
Country	US
Kind code	B2
Filing date	May 5, 2015
Priority date	May 13, 2014
Publication date	Nov 28, 2017
Grant date	Nov 28, 2017

Abstract

To provide an electrochromic display element, which contains: a display substrate; a display electrode; an electrochromic layer provided in contact with the display electrode; a counter substrate provided to face the display substrate; a counter electrode; a charge retention layer provided in contact with the counter electrode; and an electrolyte layer filling between the display substrate and the counter substrate, wherein the electrochromic layer contains titanium oxide particles, and metal hydroxide is dispersed on surfaces and in inner parts of the titanium oxide particles.

First claim

What is claimed is:

1. An electrochromic display element, comprising:
a display substrate;
a display electrode;
an electrochromic layer provided in contact with the display electrode;
a counter substrate provided to face the display substrate;
a counter electrode;
a charge retention layer provided in contact with the counter electrode; and
an electrolyte layer filling between the display substrate and the counter substrate,
wherein the electrochromic layer contains an electrochromic compound and titanium oxide particles, and single molecules of the electrochromic compound are adsorbed onto the titanium oxide particles, and
wherein aluminum hydroxide is dispersed on surfaces and in inner parts of the titanium oxide particles.

2. An electrochromic display element, comprising:
a display substrate;
a display electrode;
an electrochromic layer provided in contact with the display electrode;
a counter substrate provided to face the display substrate;
a counter electrode;
a charge retention layer provided in contact with the counter electrode;
a white reflection layer provided between the electrochromic layer and the charge retention layer; and
an electrolyte layer filling between the display substrate and the counter substrate,
wherein the electrochromic layer contains an electrochromic compound and the electrochromic layer and the white reflection layer both contain titanium oxide particles, and single molecules of the electrochromic compound are adsorbed onto the titanium oxide particles, and
wherein aluminum hydroxide is dispersed on surfaces and in inner parts of the titanium oxide particles.

3. The electrochromic display element according to claim 1 , wherein an amount of the aluminum hydroxide in the titanium oxide particles is 3% by mass to 15% by mass.

4. The electrochromic display element according to claim 2 , wherein an amount of the aluminum hydroxide in the titanium oxide particles is 3% by mass to 15% by mass.

5. A display device, comprising:
the electrochromic display element according to claim 1 ;
a first memory unit configured to store display data; and
a display controller configured to control the electrochromic display element according to the display data.

6. A display device, comprising:
the electrochromic display element according to claim 2 ;
a first memory unit configured to store display data; and
a display controller configured to control the electrochromic display element according to the display data.

7. Information equipment, comprising:
the display device according to claim 5 ; and
a controller configured to control information to be displayed on the display device.

8. Information equipment, comprising:
the display device according to claim 6 ; and
a controller configured to control information to be displayed on the display device.

9. An electrochromic dimming lens, comprising:
a lens;
a first electrode layer laminated on the lens;
an electrochromic layer laminated on the first electrode layer;
a porous insulation layer laminated on the electrochromic layer;
a second electrode layer, which is porous, and is laminated on the porous insulation layer;
an antidegradation layer provided in contact with the second electrode layer, and provided at an upper side, or a bottom side, or both sides of the second electrode layer; and
an electrolyte layer filling between the first electrode layer and the second electrode layer, and provided in contact with the electrochromic layer and the antidegradation layer,
wherein the electrochromic layer contains an electrochromic compound and titanium oxide particles, and single molecules of the electrochromic compound are adsorbed onto the titanium oxide particles, and
wherein aluminum hydroxide is dispersed on surfaces and in inner parts of the titanium oxide particles.

10. The electrochromic dimming lens according to claim 9 , wherein an amount of the aluminum hydroxide in the titanium oxide particles is 3% by mass to 15% by mass.

Assignees

• Takahashi Hiroyuki
• Horiuchi Tamotsu
• Yashiro Tohru
• Yutani Keiichiroh
• Okada Yoshinori
• Kim Sukchan
• Fujimura Koh
• Naijo Yoshihisa
• Tsuji Kazuaki
• Hirano Shigenobu
• Sagisaka Toshiya
• Inoue Mamiko
• Yamamoto Satoshi
• Goto Daisuke
• Ricoh Co Ltd

Inventors

• Takahashi Hiroyuki
• Horiuchi Tamotsu
• Yashiro Tohru
• Yutani Keiichiroh
• Okada Yoshinori
• Kim Sukchan
• Fujimura Koh
• Naijo Yoshihisa
• Tsuji Kazuaki
• Hirano Shigenobu
• Sagisaka Toshiya
• Inoue Mamiko
• Yamamoto Satoshi
• Goto Daisuke

Classifications

• G02F1/1527

  Physics · mapped topic

• G02F1/155

  Electrodes · CPC title

• G02F1/1523 Primary

  comprising inorganic material · CPC title

• G02F2001/1555

  Counter electrode · CPC title

• G02F1/1347 Primary

  Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells · CPC title