Liquid crystal module and electronic device

• US 9,709,835 B2
• Filed: 10/28/2013
• Issued: 07/18/2017
• Est. Priority Date: 11/15/2012
• Status: Active Grant

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Hohshi, Norikazu, Zhang, Xiaomang, Yanagi, Toshihiro
• Primary Examiner(s): Fureman, Jared
• Assistant Examiner(s): Pham, Duc M
• Application Number:
  US14/441,904
• Publication Number:
  US 20150331268A1
• Time in Patent Office: 1,359 Days
• Field of Search: 307104
• CPC Class Codes: G02F 1/13306 Circuit arrangements or driving methods for the control of single liquid crystal cells G02F1/132, G02F1/133382 take precedence
• CPC Class Codes: G02F 1/133553 Reflecting elements associated to illuminating devices G02F1/133605
• CPC Class Codes: H01F 27/2804 Printed windings
• CPC Class Codes: H01F 38/14 Inductive couplings for wireless supply or distribution of electric power using inductive coupling H02J50/10
• CPC Class Codes: H02J 50/005 Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/402 the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas
• CPC Class Codes: H02J 7/0013 acting upon several batteries simultaneously or sequentially H02J7/1423 takes precedence
• CPC Class Codes: H02J 7/0044 specially adapted for holding portable devices containing batteries H02J7/0045 takes precedence

Abstract

A liquid crystal module (1) of the present invention includes: a backlight (2) (a lighting device) that emits a light; a liquid crystal panel (3) that is struck by a light emitted from the lighting device; and a power transmitting coil (4) that receives a voltage from an AC power supply, generates a magnetic field, and transfers an electrical power to a device to be charged.

Claims

1. A liquid crystal module comprising:

a lighting device configured to emit a light;

a liquid crystal panel configured to be struck by the light emitted from the lighting device;

at least one power transmitting coil configured to receive a voltage from an AC power supply, generate a magnetic field, and transfer an electrical power to a device to be charged; and

a reflective plate disposed on a side of the lighting device opposite from a side on which the liquid crystal panel is disposed, wherein

the at least one power transmitting coil is provided on the reflective plate.

2. The liquid crystal module according to claim 1,

wherein the at least one power transmitting coil is embedded within the reflective plate.

3. The liquid crystal module according to claim 1,

wherein the at least one power transmitting coil is a plurality of power transmitting coils.

4. The liquid crystal module according to claim 1, further comprising:

a power transmitting circuit; and

a voltage converter, wherein

the power transmitting circuit, the voltage converter, and the at least one power transmitting coil constitute a power transmitting device.

5. The liquid crystal module according to claim 4,

wherein the power transmitting circuit and the voltage converter are disposed on a drive board of the liquid crystal panel.

6. The liquid crystal module according to claim 4,

wherein the voltage converter is an AC/DC converter, and

a voltage from the AC power supply is supplied to the AC/DC converter via a power supply cable.

7. The liquid crystal module according to claim 4,

wherein the voltage converter is a DC/DC converter, and

a voltage from the AC power supply is supplied to the DC/DC converter via an AC adaptor.

8. A liquid crystal module comprising:

a lighting device configured to emit a light;

a liquid crystal panel configured to be struck by the light emitted from the lighting device; and

at least one power transmitting coil configured to receive a voltage from an AC power supply, generate a magnetic field, and transfer an electrical power to a device to be charged, wherein

a display surface of the liquid crystal panel is made as a surface on which the device to be charged is placed.

9. The liquid crystal module according to claim 8,

wherein the at least one power transmitting coil is a plurality of power transmitting coils.

10. The liquid crystal module according to claim 8, further comprising:

a power transmitting circuit; and

a voltage converter, wherein

the power transmitting circuit, the voltage converter, and the at least one power transmitting coil constitute a power transmitting device.

11. The liquid crystal module according to claim 10, wherein

the power transmitting circuit and the voltage converter are disposed on a drive board of the liquid crystal panel.

12. The liquid crystal module according to claim 10, wherein

the voltage converter is an AC/DC converter, and

a voltage from the AC power supply is supplied to the AC/DC converter via a power supply cable.

13. The liquid crystal module according to claim 10, wherein

the voltage converter is a DC/DC converter, and

a voltage from the AC power supply is supplied to the DC/DC converter via an AC adaptor.

14. A liquid crystal module comprising:

a lighting device configured to emit a light;

a liquid crystal panel configured to be struck by the light emitted from the lighting device;

at least one power transmitting coil configured to receive a voltage from an AC power supply, generate a magnetic field, and transfer an electrical power to a device to be charged; and

a reflective plate disposed on a side of the lighting device opposite from a side on which the liquid crystal panel is disposed, wherein

the at least one power transmitting coil is installed on a surface of the reflective plate opposite from a side on which the lighting device is disposed.

15. The liquid crystal module according to claim 14,

wherein the at least one power transmitting coil is a plurality of power transmitting coils.

16. The liquid crystal module according to claim 14, further comprising:

a power transmitting circuit; and

a voltage converter, wherein

the power transmitting circuit, the voltage converter, and the at least one power transmitting coil constitute a power transmitting device.

17. The liquid crystal module according to claim 16, wherein

the power transmitting circuit and the voltage converter are disposed on a drive board of the liquid crystal panel.

18. The liquid crystal module according to claim 16, wherein

the voltage converter is an AC/DC converter, and

a voltage from the AC power supply is supplied to the AC/DC converter via a power supply cable.

19. The liquid crystal module according to claim 16, wherein

the voltage converter is a DC/DC converter, and

a voltage from the AC power supply is supplied to the DC/DC converter via an AC adaptor.