Naked-eye 3D lens display device and method for manufacturing the same

Patent metadata

Field	Value
Publication number	US-10288978-B2
Application number	US-201615324485-A
Country	US
Kind code	B2
Filing date	Aug 18, 2016
Priority date	Jul 27, 2016
Publication date	May 14, 2019
Grant date	May 14, 2019

Abstract

A naked-eye 3D lens display device and a method for manufacturing the same are disclosed. The present disclosure relates to the technical field of 3D display, and particularly to a naked-eye 3D display technology. The technical problem that the lens of the display device in the prior art cannot be switched between 3D display mode and 2D display mode can be solved. The two electromagnetic shielding films are arranged facing each other. The frame and spacers are arranged between the two electromagnetic shielding films, and the frame and spacers and the two electromagnetic shielding films form a closed space. The electronically controlled magnetic poles are respectively arranged on two inner walls of the electromagnetic shielding films facing each other. The liquid medium is distributed in the closed space. The transparent magnetic particles are arranged in the liquid medium in the closed space. The display screen is fixed on an outer wall of either of the two electromagnetic shielding films. The beneficial effect lies in that, the naked-eye 3D lens can be switched between 3D display mode and 2D display mode. The 3D lens display device is light and thin, and has a good display effect and a low cost. The naked-eye 3D lens can be used in 3D display products.

First claim

The invention claimed is:

1. A naked-eye 3D lens display device, comprising a display screen ( 1 ) and a 3D lens, wherein the 3D lens comprises two electromagnetic shielding films ( 2 ), a plurality of electronically controlled magnetic poles ( 3 ), a frame and spacers ( 4 ), a liquid medium ( 5 ), and a plurality of transparent magnetic particles ( 6 );
wherein the two electromagnetic shielding films ( 2 ) are arranged facing each other, and the plurality of electronically controlled magnetic poles ( 3 ) are respectively arranged on two inner walls of the electromagnetic shielding films ( 2 ) facing each other;
wherein the frame and spacers ( 4 ) are arranged between the two electromagnetic shielding films ( 2 ), and the frame and spacers ( 4 ) and the two electromagnetic shielding films ( 2 ) form a closed space;
wherein the liquid medium ( 5 ) is distributed in the closed space;
wherein the plurality of transparent magnetic particles ( 6 ) are arranged in the liquid medium ( 5 ) in the closed space;
wherein a 3D display mode is realized when the plurality of transparent magnetic particles ( 6 ) are distributed in a curved shape, and a 2D display mode is realized when the plurality of transparent magnetic particles ( 6 ) are distributed in a same direction uniformly; and
wherein the display screen ( 1 ) is fixed on an outer wall of either of the two electromagnetic shielding films ( 2 ).

2. The display device according to claim 1 ,
wherein of the two electromagnetic shielding films ( 2 ), one electromagnetic shielding film ( 2 ) has a thickness ranging from 0.1 mm to 0.3 mm, and the other electromagnetic shielding film ( 2 ) has a thickness ranging from 0.1 mm to 0.3 mm; and
wherein the two electromagnetic shielding films ( 2 ) both have a light transmittance higher than 95%.

3. The display device according to claim 1 , wherein the transparent magnetic particles ( 6 ) have a ball shape, and a diameter of the ball is 100 nm.

4. The display device according to claim 1 , wherein a height of the frame and spacers ( 4 ) is in a range from 15 μm to 25 μm, and the height refers to a span of the frame and spacers ( 4 ) in a direction perpendicular to the electromagnetic shielding films ( 2 ).

5. The display device according to claim 1 , wherein the frame and spacers ( 4 ) and the two electromagnetic shielding films ( 2 ) form a plurality of closed spaces.

6. The display device according to claim 1 , wherein the display screen ( 1 ) is an OLED display screen.

7. The display device according to claim 1 , wherein the display screen ( 1 ) is a liquid crystal display screen.

8. A method for manufacturing a naked-eye 3D lens display device,
wherein the naked-eye 3D lens display device comprises a display screen ( 1 ) and a 3D lens, characterized in that:
the 3D lens comprises two electromagnetic shielding films ( 2 ), a plurality of electronically controlled magnetic poles ( 3 ), a frame and spacers ( 4 ), a liquid medium ( 5 ), and a plurality of transparent magnetic particles ( 6 );
the two electromagnetic shielding films ( 2 ) are arranged facing each other, and the plurality of electronically controlled magnetic poles ( 3 ) are respectively arranged on two inner walls of the electromagnetic shielding films ( 2 ) facing each other;
the frame and spacers ( 4 ) are arranged between the two electromagnetic shielding films ( 2 ), and the frame and spacers ( 4 ) and the two electromagnetic shielding films ( 2 ) form a closed space;
the liquid medium ( 5 ) is distributed in the closed space;
the plurality of transparent magnetic particles ( 6 ) are arranged in the liquid medium ( 5 ) in the closed space;
a 3D display mode is realized when the plurality of transparent magnetic particles ( 6 ) are distributed in a curved shape, and a 2D display mode is realized when the plurality of transparent magnetic particles ( 6 ) are distributed in a same direction uniformly; and
the display screen ( 1 ) is fixed on an outer wall of either of the two electromagnetic shielding films ( 2 ); and

wherein the method comprises steps of:
step 1, forming a plurality of electronically controlled magnetic poles ( 3 ) on two electromagnetic shielding films ( 2 ) respectively;
step 2, forming a frame and spacers ( 4 ) on one electromagnetic shielding film ( 2 ) containing the plurality of electronically controlled magnetic poles ( 3 );
step 3, pouring a liquid medium ( 5 ) containing a plurality of transparent magnetic particles ( 6 ) into a frame;
step 4, assembling the frame and spacers ( 4 ) with the other electromagnetic shielding film ( 2 ) containing the plurality of electronically controlled magnetic poles ( 3 ), so that a 3D lens is manufactured; and
step 5, assembling the 3D lens with a display screen ( 1 ).

Assignees

• Shenzhen China Star Optoelect

Inventors

• Song Jiangjiang

Classifications

• G02F1/29 Primary

  for the control of the position or the direction of light beams, i.e. deflection · CPC title

• G02F1/09

  based on magneto-optical elements, e.g. exhibiting Faraday effect · CPC title

• G02B30/27

  involving lenticular arrays · CPC title

• G02B27/22

  Physics · mapped topic

• G02B27/2214

  Physics · mapped topic