Samsung Electronics Co., Ltd.

Seog Jin Jeon

Chang Ho Noh

Rupasree Ragini Das

Seon-Jeong Lim

Jung Woo Kim

Jae Eun Jang

An electrochromic device according to example embodiments may include a first electrode and a second electrode facing each other, an electrochromic layer positioned between the first electrode and second electrode and including an electrochromic material, and an electrolyte contacting the electrochromic layer between the first electrode and second electrode and including an electron accepting molecule.

Electrochromic device

Disclosed is ink for an electrochromic device including an electrochromic material, a metal salt, and a solvent. Disclosed also is an electrochromic device that includes a first electrode and a second electrode facing each other, an auxiliary electrode disposed on the first electrode or the second electrode, an electrochromic layer applied on the auxiliary electrode, and an electrolyte interposed between the first electrode and second electrode, wherein the electrochromic layer is formed using ink including an electrochromic material and a metal salt. Disclosed also is a method of manufacturing the electrochromic device.

Ink for electrochromic device and electrochromic device and method of manufacturing the same

According to example embodiments, an electrochromic device includes pixel containing a first sub-pixel and a second sub-pixel. The first sub-pixel includes a first electrolyte contacting a first electrochromic layer. The first electrochromic layer includes a first electrochromic material configured to display each one of transparency and at least two colors, based on a voltage applied to the first electrochromic material. The second sub-pixel includes a second electrolyte contacting a second electrochromic layer. The second electrochromic layer includes a second electrochromic material configured to display each one of transparency, black, and at least one color other than black, based on a voltage applied to the second electrochromic material.

Disclosed is an electrochromic device that includes a first electrode and a second electrode facing each other, an electrochromic layer between the first electrode and the second electrode, and an electrolyte between the first electrode and the second electrode and being in contact with the electrochromic layer. The electrochromic layer may include a plurality of oxide semiconductor particles, a metal oxide on the surface of the oxide semiconductor particles, and an electrochromic material. An energy bandgap of the oxide semiconductor particles is in a range of about 3 eV to about 5 eV and an energy bandgap of the metal oxide is in a range of about 3 eV to about 5 eV, and a difference of conduction band energy levels of the oxide semiconductor particles and the metal oxide is about 0.5 eV or less. A method of manufacturing the electrochromic device may also be provided.

Growing community of inventors

Yongin-si, South Korea

Seog Jin Jeon