Electromagnetically-countered display systems and methods

• US 8,625,306 B2
• Filed: 09/23/2011
• Issued: 01/07/2014
• Est. Priority Date: 08/28/2006
• Status: Active Grant

• Current Assignee: Youngtack Shim
• Original Assignee: Youngtack Shim
• Inventors: Shim, Youngtack
• Primary Examiner(s): NGUYEN, TUAN DUC
• Application Number:
  US13/242,059
• Publication Number:
  US 20120032595A1
• Time in Patent Office: 837 Days
• Field of Search: 361816-818, 348/842, 345/30, 250/515.1, 335/301, 315/85
• US Class Current: 361/816
• CPC Class Codes: A61N 1/16 Screening or neutralising undesirable influences from or using, atmospheric or terrestrial radiation or fields using atmospheric electricity or earth currents H05F3/00
• CPC Class Codes: H05K 2201/0707 Shielding
• CPC Class Codes: H05K 9/0054 specially adapted for display applications
• CPC Class Codes: H05K 9/0071 Active shielding

Abstract

An electromagnetically-countered display system includes at least one wave source and at least one counter unit. The wave source irradiates harmful electromagnetic waves and the counter unit emits counter electromagnetic waves for countering the harmful waves therewith. Examples of the various counter units for the electromagnetically-countered display system and various mechanisms to counter the harmful waves with the counter units include by matching configurations of the counter units with those of the wave sources, and by matching wavefronts of the harmful waves with those the counter waves. Various methods of countering the harmful waves with such counter waves include by source and/or wave matching. Various methods of providing the counter units for emitting the counter waves defining desired wave characteristics. Various electric and magnetic shields can be employed either alone or in conjunction with the counter units for minimizing irradiation of the harmful waves from the display system.

Claims

1. An electromagnetically-countered display system which includes at least one display screen for displaying an image thereon and which is capable of reducing an intensity of harmful electromagnetic waves irradiating from said display screen toward a user of said system while displaying said image thereon, the display system comprising:

a plurality of pixels which are disposed in a preset pattern in said display screen and which is configured to emit light rays constituting said image when supplied with source electrical energy;

at least one first electrode which is configured to extend along at least one first path in said display screen and to electrically couple with at least a substantial number of said pixels on one side of said pixels;

at least one second electrode which is configured to extend along at least one second path in said display screen and to electrically couple with at least a substantial number of said pixels on another side of said pixels, whereby said pixels are configured to emit said light rays upon receiving said source electrical energy through said first and second electrodes; and

at least one counter unit which is configured to extend along at least one third path in said display screen, to receive counter electrical energy, and to emit therefrom counter electromagnetic waves, wherein at least one of a curvilinear direction of said third path, an amplitude of said counter electrical energy, and a phase angle of said counter electrical energy is configured to render said counter electromagnetic waves to counter at least a portion of said harmful electromagnetic waves irradiated by said first and second electrodes by at least one of canceling said portion of said harmful waves and suppressing said portion of said harmful waves from propagating toward said user, thereby reducing said intensity of said electromagnetic waves irradiating from said display screen toward said user.

2. The system of claim 1, wherein a substantial portion of said harmful and counter waves is not visual light rays.

3. The system of claim 2, wherein a substantial portion of said harmful and counter waves have frequency less than 10 kHz.

4. The system of claim 1, wherein a first sum vector obtained by adding a first component vector which represents said first path and a second component vector which represents said second path is at least partially parallel to a third sum vector obtained by adding a third component vector which represents said third path and wherein said electrical energies flow in said first, second, and third paths for said reducing.

5. The system of claim 1, wherein a first sum vector obtained by adding a first component vector which represents said first path and a second component vector which represents said second path is at least partially transverse to a third sum vector obtained by adding a third component vector which represents said third path for said reducing.

6. The system of claim 1, wherein said first, second, and third paths are configured such that a first sum vector obtained by adding component vectors of electric currents flowing in said first and second paths is at least partially similar to a third sum vector obtained by adding a component vector of electric currents flowing in said third path when said source and external electrical energies have at least partially opposite phase angles.

7. The system of claim 1, wherein said first, second, and third paths are configured such that a first sum vector obtained by adding component vectors electric currents flowing in said first and second paths is at least partially opposite to a third sum vector obtained by adding component vector of electric currents flowing in said third path when said source and external electrical energies have at least partially similar phase angles.

8. The system of claim 1, wherein said counter unit is configured to be in one of a plurality of arrangements, wherein a first of said arrangements is a first lateral arrangement in which said counter unit is disposed side by side with at least a portion of said electrodes, wherein a second of said arrangements is a second lateral arrangement in which said counter unit is laterally stacked beside at least a portion of said electrodes, wherein a third of said arrangements is a vertical arrangement in which said counter unit is disposed one of over and below at least a portion of said electrodes, wherein a fourth of said arrangements is a first concentric arrangement in which said counter unit is disposed in at least a portion of said electrodes, and wherein a fifth of said arrangements is a second concentric arrangement in which said counter unit is enclosing at least a portion of said electrodes.

9. The system of claim 1, wherein said counter electrical energy is at least substantially identical to said source electrical energy.

10. The system of claim 1, wherein said counter unit includes a plurality of said third paths at least some of which couple with each other in a parallel mode and, therefore, decrease electrical resistance of said counter unit.

11. The system of claim 1 comprising at least two counter units, wherein said counter units are configured to couple with each other in one of a series mode, a parallel mode, and a hybrid mode which is a combination of said series and parallel modes.

12. The system of claim 1 further comprising at least one magnetic shield which is configured to affect propagation of at least one of said harmful and counter waves.

13. The system of claim 1, wherein said third path extends in a preset arrangement and direction, wherein said counter electrical energy defines a preset amplitude and phase angle, and wherein at least one of said arrangement, direction, amplitude, and phase angle is determined by solving at least one of Gauss law for magnetism, Gauss law, Faraday'"'"'s law of induction, Ampere'"'"'s circuital law, and Lorentz force law.

14. An electromagnetically-countered display system which includes at least one display screen for displaying an image thereon and which is capable of reducing an intensity of electromagnetic waves irradiating from said display screen toward a user of said system while displaying said image thereon, the display system comprising:

a plurality of pixels which are disposed in a preset pattern in said display screen and which is configured to emit light rays constituting said image when supplied with source electrical energy;

at least one first electrode which is configured extend along at least one first path in said display screen and to electrically couple with at least a substantial number of said pixels on one side of said pixels; and

at least one second electrode which is configured to extend along at least one second path in said display screen and to electrically couple with at least a substantial number of said pixels on another side of said pixels, whereby said pixels are configured to emit said light rays upon receiving said source electrical energy through said first and second electrodes,

wherein a preset portion of said first and second paths is configured to extend in alternating directions, thereby allowing at least portions of said electromagnetic waves irradiated by said first and second electrodes to cancel each other and reducing said intensity of said electromagnetic waves irradiating from said display screen toward said user.

15. The system of claim 14, wherein a substantial portion of said harmful and counter waves is not visual light rays.

16. The system of claim 14, wherein one of said first and second paths is configured to be at least partially alternating in its directions such that a sum vector obtained by adding component vectors of said one of said first and second paths has a minimal amplitude for said reducing.

17. The system of claim 14, wherein said first and second paths are configured to be at least partially alternating in their directions such that a sum vector obtained by adding component vectors of said first and second paths has a minimal amplitude for said reducing.

18. The system of claim 14, one of said electrodes is configured to define a plurality of said paths which couple with each other in a parallel mode and, therefore, decrease electrical resistance of said counter unit.

19. The system of claim 14, wherein each of said first and second electrodes is configured to define a preset length required to electrically couple with said substantial number of said pixels and wherein at least one of said first and second electrodes is configured to include an additional length and to irradiate electromagnetic waves for said reducing.

20. An electromagnetically-countered display system which includes at least one display screen for displaying an image thereon and which is capable of reducing an intensity of electromagnetic waves irradiating from said display screen toward a user of said system while displaying said image thereon, the display system comprising:

a plurality of pixels which are disposed in a preset pattern in said display screen and which is configured to emit light rays constituting said image when supplied with source electrical energy;

at least one first electrode which is configured to extend in said display screen along a first minimum length required to electrically couple with at least a substantial number of said pixels on one side of said pixels and to emit first electromagnetic waves upon receiving said electrical energy; and

at least one second electrode which is configured to extend in said display screen along a second minimum length required to electrically couple with at least a substantial number of said pixels on another side of said pixels and to emit second electromagnetic waves upon receiving said electrical energy, whereby said pixels are configured to emit said light rays upon receiving said source electrical energy through said first and second electrodes,

wherein at least one of said first and second electrodes is configured to extend in said display screen along an additional length, to receive at least a portion of said electrical energy, and then to irradiate additional electromagnetic waves capable of canceling at least a portion of said first and second waves, thereby reducing said intensity of said electromagnetic waves irradiating from said display screen toward said user.