Display apparatus having transparent magnetic layer, and fabricating method thereof

Patent metadata

Field	Value
Publication number	US-10627678-B2
Application number	US-201716099413-A
Country	US
Kind code	B2
Filing date	Dec 13, 2017
Priority date	Dec 13, 2017
Publication date	Apr 21, 2020
Grant date	Apr 21, 2020

Abstract

The present application discloses a display apparatus. The display apparatus includes a display module including a first display substrate and a second display substrate facing the first display substrate; and a first substantially transparent magnetic layer and a second substantially transparent magnetic layer both of which on a side of the second display substrate distal to the first display substrate and spaced apart from each other. The first substantially transparent magnetic layer and the second substantially transparent magnetic layer are configured to face each other with their sides having a same magnetic polarity to generate a mutually repulsive force between each other.

First claim

What is claimed is:

1. A display apparatus, comprising:
a display module comprising a first display substrate and a second display substrate facing the first display substrate;
a touch panel on a side of the second display substrate distal to the first display substrate; and
a first substantially transparent magnetic layer and a second substantially transparent magnetic layer both of which on a side of the second display substrate distal to the first display substrate and spaced apart from each other;
wherein the first substantially transparent magnetic layer is on a side of the second substantially transparent magnetic layer distal to the second display substrate; and
the first substantially transparent magnetic layer and the second substantially transparent magnetic layer are configured to face each other with their sides having a same magnetic polarity to generate a mutually repulsive force between each other;
wherein the touch panel comprises a base substrate;
the first substantially transparent magnetic layer is on a side of the base substrate proximal to the second display substrate; and
the second substantially transparent magnetic layer is on the side of the second display substrate proximal to the touch panel.

2. The display apparatus of claim 1 , wherein the second substantially transparent magnetic layer is configured to repel the first substantially transparent magnetic layer when a pressure is applied on the first substantially transparent magnetic layer along a direction from the first substantially transparent magnetic layer toward the second substantially transparent magnetic layer, thereby reducing deformation in the second display substrate due to the pressure applied on the first substantially transparent magnetic layer.

3. The display apparatus of claim 1 , wherein the second substantially transparent magnetic layer is configured to repel the first substantially transparent magnetic layer when a pressure is applied on the touch panel along a direction from the touch panel toward the display module, thereby reducing deformation in the second display substrate due to the pressure applied on the touch panel.

4. The display apparatus of claim 1 , wherein the first substantially transparent magnetic layer and the second substantially transparent magnetic layer are spaced apart by at least one layer of the touch panel.

5. The display apparatus of claim 1 , wherein the touch panel further comprises a touch electrode layer on the base substrate; and
the first substantially transparent magnetic layer is on a side the touch electrode layer proximal to the base substrate.

6. The display apparatus of claim 1 , wherein the touch panel further comprises a touch electrode layer on the base substrate; and
the first substantially transparent magnetic layer is on a side the touch electrode layer distal to the base substrate.

7. The display apparatus of claim 1 , wherein at least one of the first substantially transparent magnetic layer and the second substantially transparent magnetic layer is a substantially transparent magnetic layer comprising magnetic nano-particles dispersed in a substantially transparent insulating material matrix.

8. The display apparatus of claim 7 , wherein the substantially transparent magnetic layer comprises ferromagnetic nano-particles dispersed in a substantially transparent fluoride compound matrix.

9. The display apparatus of claim 8 , wherein the ferromagnetic nano-particles comprise an iron-cobalt alloy of nanometer-sized granules.

10. The display apparatus of claim 8 , wherein the transparent insulating material matrix comprises aluminum fluoride.

11. The display apparatus of claim 7 , wherein the magnetic nano-particles have an average diameter in a range of approximately 10 nm to approximately 20 nm.

12. The display apparatus of claim 7 , wherein magnetization of the substantially transparent magnetic layer is at least 15 kA/m.

13. The display apparatus of claim 7 , wherein the substantially transparent magnetic layer has a transmittance for visible light greater than 80%.

14. The display apparatus of claim 1 , further comprising:
a third magnetic layer on a side of the first display substrate proximal to the second display substrate; and
a fourth magnetic layer on a side of the second display substrate proximal to the first display substrate, and spaced apart from the third magnetic layer;
wherein the third magnetic layer and the fourth magnetic layer are configured to face each other with their sides having a same magnetic polarity to generate a mutually repulsive force between each other.

15. The display apparatus of claim 14 , wherein the display module further comprises a spacer layer spacing apart the first display substrate and the second display substrate;
the spacer layer comprises a plurality of subsidiary spacers;
the third magnetic layer is on a side of the first display substrate proximal to the second display substrate; and
the fourth magnetic layer is on a side of the plurality of subsidiary spacers distal to the second display substrate and proximal to the first display substrate.

16. The display apparatus of claim 14 , wherein the display module further comprises a spacer layer spacing apart the first display substrate and the second display substrate;
the spacer layer comprises a plurality of subsidiary spacers;
the third magnetic layer is on a side of the plurality of subsidiary spacers distal to the first display substrate and proximal to the second display substrate; and
the fourth magnetic layer is on a side of the second display substrate proximal to the first display substrate.

Assignees

• Boe Technology Group Co Ltd
• Chengdu Boe Optoelect Tech Co

Inventors

• Zuo Xiongcan

Classifications

• G02F2202/07

  poled · CPC title

• G02F1/13338

  Input devices, e.g. touch panels · CPC title

• G02F1/13394

  spacers regularly patterned on the cell subtrate, e.g. walls, pillars (G02F1/133377 takes precedence) · CPC title

• H01F41/32

  for applying conductive, insulating or magnetic material on a magnetic film {, specially adapted for a thin magnetic film} · CPC title

• H01F1/0063

  in a non-magnetic matrix, e.g. granular solids (granular films H01F10/007) · CPC title