LED display device and structure of assembling the same

Patent metadata

Field	Value
Publication number	US-10330979-B2
Application number	US-201715606772-A
Country	US
Kind code	B2
Filing date	May 26, 2017
Priority date	Jul 26, 2016
Publication date	Jun 25, 2019
Grant date	Jun 25, 2019

Abstract

A display device includes a LED module including: a circuit board; a plurality of LEDs mounted on the circuit board; and at least one first fastening member provided on a first face of the circuit board, the at least one first fastening member being magnetized to one of a N-pole and a S-pole; and a bracket configured to accommodate the LED module therein and comprising at least one second fastening member, the at least one first fastening member and the at least one second fastening member being fastened by magnetic force. The second fastening member includes a first magnet configured to move linearly based on a polarity of the at least one first fastening member.

First claim

What is claimed is:

1. A display device comprising:
a light emitting diode (LED) module comprising:
a circuit board;
a plurality of LEDs mounted on the circuit board; and
at least one first fastening member provided on the circuit board, the at least one first fastening member configured to be magnetized to one of an N-pole or an S-pole; and

a bracket configured to accommodate the LED module and comprising at least one second fastening member, the at least one first fastening member and the at least one second fastening member for being fastened to each other by a magnetic force,
wherein the at least one second fastening member comprises a magnet configured to move linearly in response to the at least one first fastening member being magnetized to the one of the N-pole or the S-pole.

2. The display device of claim 1 , wherein the at least one first fastening member comprises a plurality of first fastening members.

3. The display device of claim 2 , wherein the plurality of first fastening members are located in corner areas of the LED module, and a number of the plurality of first fastening members is greater than a number of corners of the LED module.

4. The display device of claim 3 , wherein the number of the plurality of first fastening members is greater than a number of edges of the LED module.

5. The display device of claim 2 , wherein the LED module further comprises a guide member provided on the LED module and configured to guide the LED module in a fastening direction, and
wherein the guide member is spaced apart from the at least one first fastening member.

6. The display device of claim 2 , wherein at least two first fastening members of the plurality of first fastening members are located along a virtual line that passes through a center point of the LED module.

7. The display device of claim 1 , wherein the at least one second fastening member further comprises a screw cap screwed in a groove formed in the bracket and configured to accommodate the magnet, and
wherein the magnet is configured to move linearly within the screw cap in response to the at least one first fastening member being magnetized with the one of the N-pole or the S-pole.

8. The display device of claim 7 , wherein a distance of linear movement of the magnet inside the screw cap is shorter than a length of the screw cap in a movement direction of the magnet.

9. The display device of claim 5 , wherein the bracket further comprises a guide projection provided on the bracket at a location corresponding to a location of the guide member provided on the LED module.

10. The display device of claim 1 , wherein in response to attractive force being applied between the at least one first fastening member and the at least one second fastening member, the LED module is fastened to the bracket, and
wherein in response to repulsive force being applied between the at least one first fastening member and the at least one second fastening member, the LED module is separable from the bracket.

11. The display device of claim 1 , wherein the at least one first fastening member and the at least one second fastening member are not in contact with each other when the LED module and the bracket are fastened to each other.

12. The display device of claim 1 further comprising an optical element provided on the LED module.

13. The display device of claim 1 further comprising a cover frame attached to the bracket, and
wherein the cover frame is configured to accommodate a control board configured to provide driving signals to drive the plurality of LEDs and a power supply configured to supply power to the plurality of LEDs.

14. A display device comprising:
a light emitting diode (LED) module comprising a plurality of first fastening members provided at a rear face of the LED module, the plurality of first fastening members configured to be magnetized to one of an N-pole or an S-pole; and
a bracket configured to accommodate the LED module therein, the bracket comprising a plurality of magnets provided at a front face the bracket at locations corresponding to locations of the plurality of first fastening members provided at the rear face of the LED module,
wherein the LED module and the bracket are fastened by a magnetic force between the plurality of first fastening members and the plurality of magnets, the magnetic force being generated in response to the plurality of first fastening members being magnetized to the one of the N-pole or the S-pole.

15. The display device of claim 14 , wherein the bracket comprises a plurality of second fastening members housing the plurality of magnets so the plurality of magnets move linearly within the plurality of second fastening members according to the magnetic force.

16. The display device of claim 14 , wherein the bracket further comprises a plurality of screw caps, each of the plurality of screw caps accommodating a magnet of the plurality of magnets, a screw cap of the plurality of screw caps screwed in a groove formed in the bracket,
wherein the magnet is configured to move linearly within the screw cap in response to the plurality of first fastening members being magnetized with the one of the N-pole or the S-pole.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Ryu Chang Won
• Vuong Nguyenhuulam

Classifications

• G02F1/133603 Primary

  with LEDs · CPC title

• H01F7/0221

  Mounting means for PM, supporting, coating, encapsulating PM · CPC title

• H01F7/0252

  PM holding devices (H01F7/021, H01F7/0215, H01F7/0226 take precedence) · CPC title

• H01B3/006

  Other inhomogeneous material · CPC title

• G09G2300/0452

  Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components · CPC title