Display apparatus and, control device, adsorption equipment and control method thereof

Patent metadata

Field	Value
Publication number	US-11391973-B2
Application number	US-201816328217-A
Country	US
Kind code	B2
Filing date	Jul 20, 2018
Priority date	Sep 21, 2017
Publication date	Jul 19, 2022
Grant date	Jul 19, 2022

Abstract

In an embodiment, a display apparatus includes: a backlight module; a housing having a cavity for receiving the backlight module therein; adsorption device mounted on the housing and configured for removably adsorbing the backlight module on the housing; and a controller configured for controlling the adsorption device to switch between a turn-on state in which the adsorption device generates an adsorption force to adsorb the backlight module to the housing and a turn-off state in which the adsorption device stops the adsorption to remove backlight module from the housing.

First claim

What is claimed is:

1. A display apparatus, comprising:
a backlight module;
a housing having a cavity for receiving the backlight module therein;
at least two adsorption devices detachably mounted on the housing and configured for removably adsorbing the backlight module on the housing;
a controller configured for controlling the adsorption devices to switch between a turn-on state in which the adsorption devices generate an adsorption force to adsorb the backlight module to the housing and a turn-off state in which the adsorption device stops devices stop the adsorption to remove the backlight module from the housing;
wherein the housing comprises first through holes provided in a one-to-one correspondence with the at least two adsorption devices.

2. The display apparatus of claim 1 , wherein, the adsorption devices comprise at least one of a magnetic adsorption device or a vacuum adsorption device.

3. The display apparatus of claim 2 , wherein, the adsorption devices are connected from a side of the housing away from the backlight module to the cavity through the first through holes, and the adsorption devices are magnetic adsorption devices comprising:
a magnetic adsorption body; and
a magnetic field generator in the form of an electromagnet provided in the magnetic adsorption body;
wherein, the controller is configured for controlling, in response to an adsorption turn-on command, the magnetic field generator to turn on, and controlling, in response to an adsorption turn-off command, the magnetic field generator to turn off.

4. The display apparatus of claim 3 , wherein, the magnetic field generator comprises:
an electrical source;
a coil electrically connected with the electrical source; and
a core formed of ferromagnetic material and on which the coil is wound.

5. The display apparatus of claim 4 , wherein, the electrical source comprises a storage battery or a lithium battery.

6. The display apparatus of claim 4 , wherein, the adsorption devices further comprise a charger configured for charging the electrical source.

7. The display apparatus of claim 2 , wherein, the adsorption devices are connected through the first through holes from a side of the housing away from the backlight module to the cavity, and the adsorption devices are vacuum adsorption devices comprising:
a vacuum adsorption body; and
a vacuum extractor, provided in the vacuum adsorption body, and comprising a vacuum chamber and a vacuum pump in communication with the vacuum chamber;
wherein, a surface of the vacuum adsorption body is provided with a second through hole which is in communication with the vacuum extractor and then in communication with the first through hole; and
the controller is configured for controlling, in response to an adsorption turn-on command, the vacuum extractor to turn on, and, controlling, in response to an adsorption turn-off command, the vacuum extractor to turn off.

8. The display apparatus of claim 1 , wherein,
devices are connected from a side of the housing away from the backlight module to the cavity through the first through holes.

9. The display apparatus of claim 8 , further comprising a back panel provided between the backlight module and the housing, wherein adsorption devices are connected in an adsorption manner to the back panel through the first through holes.

10. The display apparatus of claim 1 , wherein, the controller comprises:
a communication circuit, configured for receiving an adsorption turn-on command and an adsorption turn-off command; and
a processor, provided to be electrically connected with the communication circuit, and configured for controlling the adsorption devices to switch between the turn-on state and the turn-off state in accordance with the adsorption turn-on command or the adsorption turn-off command.

11. The display apparatus of claim 1 , wherein the first through holes are distributed evenly in the housing.

12. The display apparatus of claim 1 , wherein, the backlight module comprises a CCFL backlight module or an LED backlight module.

13. A control device, which is applied to the display apparatus of claim 1 , comprising:
a receiving circuit, configured for receiving an adsorption turn-on command and an adsorption turn-off command; and
a controller, configured for controlling the adsorption devices to switch between the turn-on state and the turn-off state in accordance with the adsorption turn-on command or the adsorption turn-off command, and comprising:
a communication circuit configured for receiving the adsorption turn-on command and the adsorption turn-off command; and
a processor, provided to be electrically connected with the communication circuit, and configured for controlling the adsorption devices to switch between the turn-on state and the turn-off state in accordance with the adsorption turn-on command or the adsorption turn-off command.

14. An adsorption equipment, which is applied to the display apparatus of claim 1 , comprising:
a transmitting circuit, configured for transmitting an adsorption turn-on command and an adsorption turn-off command;
a receiving circuit, configured for receiving the adsorption turn-on command and the adsorption turn off command; and
a controller, configured for controlling the adsorption devices to switch between the turn-on state and the turn-off state in accordance with the adsorption turn-on command or the adsorption turn-off command, and comprising:
a communication circuit configured for receiving the adsorption turn-on command and the adsorption turn-off command; and
a processor, provided to be electrically connected with the communication circuit, and configured for controlling the adsorption devices to switch between the turn-on state and the turn-off state in accordance with the adsorption turn-on command or the adsorption turn-off command.

15. A control method, which is applied to the display apparatus of claim 1 , comprising:
transmitting, by a transmitting circuit, an adsorption turn-on command and an adsorption turn-off command;
receiving, by a receiving circuit, the adsorption turn-on command and the adsorption turn-off command; and
controlling, by a controller, the adsorption devices to switch between the turn-on state and the turn-off state in accordance with the adsorption turn-on command or the adsorption turn-off command, and the step comprising:
receiving, by a communication circuit, the adsorption turn-on command and the adsorption turn-off command; and
controlling, by a processor electrically connected with the communication circuit, the adsorption devices to switch between the turn-on state and the turn-off state in accordance with the adsorption turn-on command or the adsorption turn-off command.

Assignees

• K Tronics Su Zhou Tech Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Shi Rongrong

Classifications

• G02F1/1336

  Illuminating devices · CPC title

• H01F7/20 Primary

  without armatures (cores H01F3/00; coils H01F5/00 {; shaping metal by applying magnetic forces B21D26/14; electromagnets specially adapted for NMR applications G01R33/381}) · CPC title

• H01F7/064

  Circuit arrangements for actuating electromagnets (circuit arrangements for obtaining special operating characteristics H01F7/18; driving circuits for electromagnets making use of a switching regulator H01H47/325) · CPC title

• G02F1/133308 Primary

  Support structures for LCD panels, e.g. frames or bezels · CPC title

• G02F2201/46

  Fixing elements · CPC title