LIGHT MODULATION DEVICE

• US 20170176834A1
• Filed: 11/16/2016
• Published: 06/22/2017
• Est. Priority Date: 12/22/2015
• Status: Active Application

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: KIM, Yong Hae, KIM, Tae-Youb, PI, Jae-Eun, CHO, Seong-Mok, YANG, Jong-Heon
• Granted Patent: US 10,261,382 B2
• Time in Patent Office: Days
• CPC Class Codes: B60R 1/088 using a cell of electrically changeable optical characteristic, e.g. liquid-crystal or electrochromic mirrors
• CPC Class Codes: G02F 1/15 based on an electrochromic effect
• CPC Class Codes: G02F 1/1525 characterised by a particular ion transporting layer, e.g. electrolyte
• CPC Class Codes: G02F 1/1533 structural features not otherwise provided for
• CPC Class Codes: G02F 1/161 Gaskets; Spacers; Sealing of cells; Filling or closing of cells
• CPC Class Codes: G02F 1/29 for the control of the position or the direction of light beams, i.e. deflection
• CPC Class Codes: G02F 2001/1536 additional, e.g. protective, layer inside the cell
• CPC Class Codes: G09G 3/38 using electrochromic devices

Abstract

Provided is a light modulating device including a light modulating unit provided on a substrate, a driving unit electrically connected to the light modulating unit and configured to drive the light modulating unit, and a cover disposed on the light modulating unit and configured to seal the light modulating unit, wherein the light modulating unit comprises an electrochromic device.

Claims

1. A light modulating device comprising:

a light modulating unit provided on a substrate;

a driving unit electrically connected to the light modulating unit and configured to drive the light modulating unit; and

a cover disposed on the light modulating unit and configured to seal the light modulating unit,

wherein the light modulating unit comprises an electrochromic device.

2. The light modulating device of claim 1, wherein an internal space is provided between the cover and the light modulating unit, and a sealing gas comprising hydrogen is provided to the internal space.

3. The light modulating device of claim 2, wherein the sealing gas further comprises an inert gas.

4. The light modulating device of claim 1, wherein the electrochromic device comprises:

first and second electrodes;

a first electrochromic layer disposed on the first electrode;

a second electrochromic layer disposed under the second electrode; and

an electrolyte layer between the first and second electrochromic layers,

wherein each of the first and second electrodes, each of the first and second electrochromic layers, and the electrolyte layer are provided in a solid state.

5. The light modulating device of claim 1, wherein the electrochromic device comprises:

first and second electrodes;

a first electrochromic layer disposed on the first electrode;

a second electrochromic layer disposed under the second electrode;

an electrolyte layer between the first and second electrochromic layers; and

a hydrogen absorption film between the electrolyte layer and at least one of the first and second electrochromic layers.

6. The light modulating device of claim 1, further comprising:

a protection layer stacked on the substrate,

wherein the light modulating layer is provided inside the protection layer.

7. The light modulating device of claim 1, wherein the electrochromic device is provided in plurality.

8. A light modulating device comprising:

electrochromic devices that are two-dimensionally arranged on a substrate;

a driving unit for driving the electrochromic devices; and

a protection layer stacked on the substrate and configured to protect the electrochromic devices,

wherein each of the electrochromic devices is provided in a solid state.

9. The light modulating device of claim 8, further comprising:

a cover configured to seal the electrochromic devices,

wherein a sealing gas is provided to internal spaces between the cover and the electrochromic devices, and the sealing gas comprises at least one of hydrogen and an inert gas.