Light-adjusting glass and smart vehicle window

Patent metadata

Field	Value
Publication number	US-11598996-B2
Application number	US-202017280901-A
Country	US
Kind code	B2
Filing date	Dec 8, 2020
Priority date	Dec 12, 2019
Publication date	Mar 7, 2023
Grant date	Mar 7, 2023

Abstract

The present disclosure provides a light-adjusting glass and a smart vehicle window. The light-adjusting glass has a transmittance adjustment region and an encapsulation region; the light-adjusting glass includes: a first and second substrates opposite to each other, and a dye liquid crystal layer between the first and second substrates in the transmittance adjustment region, and a frame sealant in the encapsulation region; the first substrate includes a first base and a first electrode layer on a side of the first base proximal to the dye liquid crystal layer; the second substrate includes a second base and a second electrode layer on a side of the second base proximal to the dye liquid crystal layer; a conductive structure is provided in the frame sealant; a first and second voltage transmission structures electrically insulated from each other are on the first base.

First claim

What is claimed is:

1. A light-adjusting glass, which has a transmittance adjustment region and an encapsulation region at least partially surrounding the transmittance adjustment region; the light-adjusting glass comprises: a first substrate and a second substrate opposite to each other, and a dye liquid crystal layer between the first substrate and the second substrate in the transmittance adjustment region, and a frame sealant in the encapsulation region; wherein the first substrate comprises a first base and a first electrode layer on a side of the first base proximal to the dye liquid crystal layer; the second substrate comprises a second base and a second electrode layer on a side of the second base proximal to the dye liquid crystal layer; wherein,
a conductive structure is provided in the frame sealant;
a first voltage transmission structure and a second voltage transmission structure electrically insulated from each other are on the first base;
the first voltage transmission structure is electrically connected to the first electrode layer; and
the frame sealant at least covers a part of the second voltage transmission structure, so that the second voltage transmission structure is electrically connected to the second electrode layer through the conductive structure in the frame sealant,
wherein the second voltage transmission structure comprises: a first transmission sub-structure and a second transmission sub-structure;
the first transmission sub-structure and the first voltage transmission structure are on a same side of the encapsulation region;
the second transmission sub-structure is a U-shaped structure and is positioned on a first side, a second side and a third side of the encapsulation region; the first transmission sub-structure is positioned on a fourth side of the encapsulation region; and one end of the first transmission sub-structure is a block-shaped structure, and the other end of the first transmission sub-structure and one end of the second transmission sub-structure at the third side are connected to be formed as single piece; and
the other end of the second transmission sub-structure is terminated at the first side and is not bent towards the fourth side.

2. The light-adjusting glass of claim 1 , wherein the second voltage transmission structure is in a peripheral region of the first electrode layer by at least partially surrounding the first electrode layer.

3. The light-adjusting glass of claim 1 , wherein the first electrode layer and the second electrode layer both comprise plate-shaped electrodes.

4. The light-adjusting glass of claim 3 , wherein the first voltage transmission structure and the first electrode layer are formed as a single piece.

5. The light-adjusting glass of claim 1 , wherein the first electrode layer comprises a plurality of strip-shaped electrodes; and the second electrode layer comprises a plate-shaped electrode.

6. The light-adjusting glass of claim 5 , wherein the first voltage transmission structure comprises a plurality of first pads and a plurality of second pads;
first ends of the plurality of first pads proximal to the first electrode layer are coupled to the plurality of strip-shaped electrodes, respectively;
second ends of the plurality of first pads distal to the first electrode layer are electrically coupled to first ends of the plurality of second pads proximal to the first electrode layer through a plurality of fan-out traces, respectively.

7. The light-adjusting glass of claim 6 , wherein the plurality of second pads are provided on the first base outside the encapsulation region.

8. The light-adjusting glass of claim 6 , wherein the plurality of first pads and the second plurality of pads are in a same layer and are made of a same material as the second voltage transmission structure.

9. The light-adjusting glass of claim 6 , further comprising a transition layer which is provided at a second end of each of the plurality of second pads distal to the first electrode layer, and
the transition layer is in a same layer and is made of a same material as the strip-shaped electrodes.

10. The light-adjusting glass of claim 9 , wherein an orthographic projection of the second electrode layer on the first base covers an orthographic projection of the first transmission sub-structure on the first base.

11. The light-adjusting glass of claim 6 , wherein the first transmission sub-structure comprises a third pad electrically connected to the second transmission sub-structure via a connection trace;
the third pad and the plurality of second pads are arranged side by side; and
the connection trace and the fan-out traces are arranged side by side.

12. The light-adjusting glass of claim 1 , further comprising an interlayer insulating layer, wherein the interlayer insulating layer covers at least the first electrode layer, and exposes the first transmission sub-structure and the second transmission sub-structure.

13. A smart vehicle window, comprising the light-adjusting glass of claim 1 .

14. A method for manufacturing a light-adjusting glass, comprising:
forming a first substrate, comprising: preparing a first base and forming a first electrode layer, a first voltage transmission structure and a second voltage transmission structure on the first substrate, wherein the first voltage transmission structure and the second voltage transmission structure are electrically insulated from each other; the first electrode layer is provided in a transmittance adjustment region, and at least a part of the second voltage transmission structure is provided in an encapsulation region at least partially surrounding the transmittance adjustment region;
forming a frame sealant in the encapsulation region such that the frame sealant comprises a conductive structure and a first portion which at least partially covers the second voltage transmission structure;
forming a second substrate such that the second substrate comprises a second base and a second electrode layer formed on the second base; and
aligning and assembling the first substrate and the second substrate such that the frame sealant is arranged between the first substrate and the second substrate and is bonded to the second electrode layer,
wherein the second voltage transmission structure comprises: a first transmission sub-structure and a second transmission sub-structure;
the first transmission sub-structure and the first voltage transmission structure are on a same side of the encapsulation region; and
the second transmission sub-structure is a U-shaped structure and is positioned on a first side, a second side and a third side of the encapsulation region; the first transmission sub-structure is positioned on a fourth side of the encapsulation region; and one end of the first transmission sub-structure is a block-shaped structure, and the other end of the first transmission sub-structure and one end of the second transmission sub-structure at the third side are connected to be formed as single piece; and
the other end of the second transmission sub-structure is terminated at the first side and is not bent towards the fourth side.

15. The method for manufacturing a light-adjusting glass of claim 14 , further comprising forming an interlayer insulating layer on the first electrode layer to cover the first electrode layer and expose the second voltage transmission structure, before forming the frame sealant in the encapsulation region.

16. The method for manufacturing a light-adjusting glass of claim 14 , wherein forming the first electrode layer and the first voltage transmission st

Assignees

• Beijing Boe Optoelectronics Tech Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Yuan Hongliang
• Wu Xiaojuan
• Zhang Yong
• Zhang Limin
• Zhao Zhiqiang
• Zheng Qi
• Bi Yao
• Zhong Xuan
• Cheng Zhangxiang
• Zhang Donghua
• Wang Jiaxing
• Wang Ce
• Wang Jian
• Li Yanchen

Classifications

• B60J3/04

  adjustable in transparency · CPC title

• B60J1/00

  Windows; Windscreens; Accessories therefor (B60J10/00 takes precedence; air curtains instead of windows B60J9/04 {; sealing strips for windshields B60J10/70; sealing sash guides for sliding window panes B60J10/74; glass partitions inside vehicles to protect occupants against personal attack B60R21/12}) · CPC title

• G02F1/134309 Primary

  characterised by their geometrical arrangement · CPC title

• G02F1/1345

  Conductors connecting electrodes to cell terminals · CPC title

• G02F1/13452 Primary

  Conductors connecting driver circuitry and terminals of panels · CPC title