Anti-peeping assembly and anti-peeping display device

Patent metadata

Field	Value
Publication number	US-12007553-B1
Application number	US-202318356431-A
Country	US
Kind code	B1
Filing date	Jul 21, 2023
Priority date	Nov 30, 2022
Publication date	Jun 11, 2024
Grant date	Jun 11, 2024

Abstract

An anti-peeping assembly and an anti-peeping display device. The anti-peeping assembly includes an anti-peeping component, two frames arranged at a periphery of the anti-peeping component, and two drive modules. The anti-peeping component includes two first substrates and a louver layer sandwiched between the two first substrates. The louver layer includes a plurality of light transmitting parts and a plurality of shading parts adjacent to the plurality of light transmitting parts. The drive module is configured to drive at least one of the two first substrates to move relative to the louver layer in a thickness direction of the first substrates so as to cause the louver layer to be compressed or be recovered from deformation, thereby realizing adjustment of a dimension of each of the light transmitting parts in the thickness direction. The anti-peeping assembly solves a problem that the conventional anti-peeping assembly has fixed and non-adjustable visual angle.

First claim

What is claimed is:

1. An anti-peeping assembly applied to a display panel, the anti-peeping assembly comprising an anti-peeping component and two frames arranged on a periphery of the anti-peeping component, the anti-peeping component comprising two first substrates and a louver layer sandwiched between the two first substrates; the louver layer comprising a plurality of light transmitting parts and a plurality of shading parts arranged to be adjacent to the plurality of light transmitting parts; and
the anti-peeping assembly further comprises a plurality of drive modules configured to drive at least one of the first substrates to move relative to the louver layer in a thickness direction of the first substrates to cause the louver layer to be compressed or be recovered from deformation, thereby adjusting a dimension of each light transmitting part in the thickness direction; and
each of the drive modules comprises:
a first magnetic component arranged between the two first substrates and configured to apply a magnetic force to the two first substrates to cause the two first substrates to be closer to each other, in order to compress the louver layer;
a second magnetic component arranged between the two first substrates and configured to apply a magnetic force to the two first substrates to cause the two first substrates to move away from each other, in order to recover the louver layer from deformation.

2. The anti-peeping assembly according to claim 1 , wherein,
the first magnetic component comprises two permanent magnets having different magnetic properties, and the two permanent magnets are arranged on two side surfaces of the two first substrates adjacent to the two first substrates, respectively.

3. The anti-peeping assembly according to claim 2 , wherein,
the two electromagnets are embedded in the two permanent magnets, respectively.

4. The anti-peeping assembly according to claim 1 , wherein,
a number of the shading parts is plural, and a plurality of the shading parts are arranged to be spaced from each other in a direction perpendicular to the thickness direction, and one of the light transmitting parts is arranged between every two adjacent shading parts.

5. The anti-peeping assembly according to claim 4 , wherein,
each of the plurality of shading parts has a strip-shaped structure, and the plurality of shading parts are arranged in a direction perpendicular to the length direction.

6. The anti-peeping assembly according to claim 1 , wherein,
the louver layer has a mesh structure and comprises a plurality of intersecting blocking strips and meshes enclosed by the plurality of blocking strips, the plurality of blocking strips are the shading parts, and the meshes are the light transmitting parts.

7. The anti-peeping assembly according to claim 1 , wherein,
the two frames are glue frames, and inner walls of the two frames are fixed with the two first substrates, respectively.

8. An anti-peeping display device, comprising:
a display panel; and
the anti-peeping assembly according to claim 1 , wherein the anti-peeping assembly is arranged on a light-exiting surface of the display panel.

9. The anti-peeping display device according to claim 8 , wherein
the display panel comprises a color film substrate, a liquid crystal layer, and an array substrate, which are arranged to be laminated; the color film substrate comprises a second substrate, and the second substrate and one of the two first substrates are integrally formed.

10. The anti-peeping display device according to claim 8 , wherein
the first magnetic component comprises two permanent magnets having different magnetic properties, and the two permanent magnets are arranged on two side surfaces of the two first substrates adjacent to the two first substrates, respectively.

11. The anti-peeping display device according to claim 8 , wherein
the second magnetic component comprises two electromagnets having the same magnetic property, and a drive circuit electrically connected to the two electromagnets; the two electromagnets are respectively arranged on the two side surfaces of the two first substrates adjacent to the two electromagnets, and the drive circuit is configured to control values of input currents of coils of the two electromagnets.

12. The anti-peeping display device according to claim 11 , wherein the two electromagnets are embedded in the two permanent magnets, respectively.

13. The anti-peeping display device according to claim 8 , wherein a number of the shading parts is plural, and a plurality of the shading parts are arranged to be spaced from each other in a direction perpendicular to the thickness direction, and one of the light transmitting parts is arranged between every two adjacent shading parts.

14. The anti-peeping display device according to claim 8 , wherein each of the plurality of shading parts has a strip-shaped structure, and the plurality of shading parts are arranged in a direction perpendicular to the length direction.

15. The anti-peeping display device according to claim 8 , wherein each of the plurality of shading parts has a circular structure, and the plurality of shading parts are arranged in a radial direction thereof.

16. The anti-peeping display device according to claim 8 , wherein the louver layer has a mesh structure, and comprises a plurality of intersecting blocking strips and meshes enclosed by the plurality of blocking strips, the plurality of blocking strips are the shading parts, and the meshes are the light transmitting parts.

17. The anti-peeping display device according to claim 8 , wherein the two frames are glue frames, and inner walls of the two frames are fixed with the two first substrates, respectively.

18. The anti-peeping display device according to claim 8 , wherein two surfaces of each frame in the thickness direction of the first substrate are respectively flush with two surfaces of the first substrate being adjacent to the frame and being away from the louver layer.

19. The anti-peeping assembly according to claim 1 , wherein the second magnetic component comprises two electromagnets having the same magnetic property, and a drive circuit electrically connected to the two electromagnets; the two electromagnets are respectively arranged on the two side surfaces of the two first substrates adjacent to the two electromagnets, and the drive circuit is configured to control values of input currents of coils of the two electromagnets.

20. The anti-peeping assembly according to claim 5 , wherein each of the plurality of shading parts has a circular structure, and the plurality of shading parts are arranged in a radial direction thereof.

Assignees

• Hkc Corp Ltd

Inventors

• Yang Xiaohui
• Yuan Haijiang

Classifications

• G02F1/133524

  Light-guides, e.g. fibre-optic bundles, louvered or jalousie light-guides · CPC title

• H01F2007/1692

  Electromagnets or actuators with two coils · CPC title

• H01F7/1646

  Armatures or stationary parts of magnetic circuit having permanent magnet · CPC title

• H01F7/126

  Supporting or mounting · CPC title

• H01F7/06

  Electromagnets; Actuators including electromagnets {(electric coils H01F5/00; devices for holding workpieces using electric force B23Q3/15; load-engaging elements for lifting articles electromagnetically B66C1/06; electromagnetic couplings F16D27/00; magnetic brakes F16D63/002; electromagnetically operated valves F16K11/24, F16K31/00; analysing materials by magnetic means G01N27/72, G01N27/80; electromagnets for winding mechanical clocks G04C1/02; electromagnetic relays H01H51/00; windings for salient poles of dynamo-electric machines H02K3/18; electromagnets for telegraphic communication H04L; for arc lamps H05B31/28)} · CPC title