Mosaic screen

Patent metadata

Field	Value
Publication number	US-10203535-B2
Application number	US-201615327766-A
Country	US
Kind code	B2
Filing date	Mar 10, 2016
Priority date	Sep 18, 2015
Publication date	Feb 12, 2019
Grant date	Feb 12, 2019

Abstract

The present disclosure discloses a mosaic screen. The mosaic screen comprises a box body, a backlight module and a plurality of display modules spliced with each other. The box body comprises four side walls and one box bottom. The plurality of display modules and the box bottom are oppositely fixed on the box body. The backlight module comprises a plurality of lamp panels arranged on the four side walls. Each of the lamp panels comprises: a baseplate, a light source fixing plate, and a light source fixed on the light source fixing plate. The light source fixing plate is connected with a first side of the baseplate close to the display modules, and forms an included angle with the baseplate.

First claim

The invention claimed is:

1. A mosaic screen, comprising a box body, a backlight module and a plurality of display modules spliced with each other, the box body comprising four side walls and one box bottom, the one box bottom being surrounded by the four side walls, the one box bottom and the four side walls together forming a box for accommodating an object, the plurality of display modules being surrounded by the four side walls and opposite to the box bottom, wherein the backlight module comprises lamp panels, a plurality of lamp panels being arranged on each of the four side walls, each of the lamp panels comprises: a baseplate, a light source fixing plate, and a light source fixed on the light source fixing plate, wherein the baseplate is mounted on inner side of the side walls, the light source fixing plate is connected with a first side of the baseplate close to the display modules, and forms an included angle with the baseplate, and wherein the light emitted by the light source directly irradiates to the center area of the box bottom.

2. The mosaic screen according to claim 1 , wherein the light source comprises a plurality of light emitting diodes packaged using chip-on-board (COB) package mode, the plurality of light emitting diodes are arranged in sequence on the light source fixing plate along an extending direction of the side wall.

3. The mosaic screen according to claim 2 , wherein the length and the width of the box body are the same, the included angles formed between the light source fixing plates and the baseplates in the plurality of lamp panels on the four side walls are the same, and the light emitted by the light emitting diodes on each side wall can irradiate to a range from the edge of the box bottom to a position which is L/2 from the side wall, wherein L is the length of the box body.

4. The mosaic screen according to claim 3 , wherein a length of each of the lamp panels along the extending direction of the light source fixing plate is 535˜560 mm, a width of each of the lamp panels along a direction perpendicular to the extending direction of the light source fixing plate is 550˜750 mm.

5. The mosaic screen according to claim 3 , wherein a width of the light source fixing plate is 20˜26 mm.

6. The mosaic screen according to claim 3 , wherein the included angle formed between the light source fixing plate and the baseplate is 108°˜113° when the light emitting angle of the light emitting diodes is −60°˜60°.

7. The mosaic screen according to claim 2 , wherein the length and the width of the box body are different, the included angle formed between the light source fixing plate and the baseplate in each lamp panel arranged on the two relatively long side walls is less than the included angle formed between the light source fixing plate and the baseplate in each lamp panel arranged on the two relatively short side walls, the light emitted by the light emitting diodes on the light source fixing plates in each lamp panel arranged on the two relatively long side walls can irradiate to a range from the edge of the box bottom to a position which is W/2 from the side wall, the light emitted by the light emitting diodes on the light source fixing plates in each lamp panel arranged on the two relatively short side walls can irradiate to a range from the edge of the box bottom to a position which is L/2 from the side wall, wherein L is the length of the box body, W is the width of the box body.

8. The mosaic screen according to claim 7 , wherein the length of the box body is 3.6˜3.8 m, the width of the box body is 2.0˜2.2 m, the thickness of the box body is 0.55˜0.75 m.

9. The mosaic screen according to claim 1 , wherein the light source fixing plate is covered with a reflecting layer.

10. The mosaic screen according to claim 1 , wherein the lamp panel further comprises an occlusion part extending from a side of the light source fixing plate away from the baseplate, the occlusion part and the light source fixing plate form a bending structure.

11. The mosaic screen according to claim 10 , wherein the occlusion part is covered with a reflecting layer.

12. The mosaic screen according to claim 10 , wherein the cross section shape of the bending structure formed by the occlusion part and the light source fixing plate is a triangle or a trapezoid.

13. The mosaic screen according to claim 1 , wherein the baseplate is covered with a reflecting layer.

14. The mosaic screen according to claim 1 , wherein the lamp panel further comprises a reflecting plate, the reflecting plate is connected with a second side of the baseplate away from the display module, the second side is arranged opposite to the first side.

15. The mosaic screen according to claim 1 , wherein the lamp panel is detachably connected to the side walls of the box body.

16. The mosaic screen according to claim 15 , wherein the lamp panel further comprises a plurality of connecting mechanisms located on a third side of the baseplate and a fourth side opposite to the third side.

17. The mosaic screen according to claim 11 , wherein the cross section shape of the bending structure formed by the occlusion part and the light source fixing plate is a triangle or a trapezoid.

Assignees

• Boe Technology Group Co Ltd

Inventors

• Fan Yang
• Lin She
• Wang Xin

Classifications

• F21V7/05

  plane · CPC title

• F21Y2115/10

  Light-emitting diodes [LED] · CPC title

• G02F1/133615

  Edge-illuminating devices, i.e. illuminating from the side · CPC title

• G02F1/13336 Primary

  Combining plural substrates to produce large-area displays, e.g. tiled displays · CPC title

• G09F9/00

  Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements (in which the variable information is permanently attached to a movable support G09F11/00; abacus G06C1/00; slide-rules G06G1/00) · CPC title