DISPLAY METHOD, DISPLAY DEVICE AND DISPLAY APPARATUS

• US 20100296023A1
• Filed: 01/04/2008
• Published: 11/25/2010
• Est. Priority Date: 01/04/2008
• Status: Active Grant

• Current Assignee: Viatime Media Ltd.
• Original Assignee: Viatime Media Ltd.
• Inventors: Jiang, Zhaoguo
• Granted Patent: US 8,482,693 B2
• Time in Patent Office: Days
• US Class Current: 349/58
• CPC Class Codes: G02B 26/008 in the form of devices for effecting sequential colour changes, e.g. colour wheels
• CPC Class Codes: G09F 9/37 being movable elements G09F9/302 takes precedence
• CPC Class Codes: G09F 9/375 the position of the elements being controlled by the application of a magnetic field

Abstract

A display method, a display device and a display apparatus are provided. The display method comprises: providing a white reflection plate (301) which could reflect light by itself to generate white light; providing color transparent plates (302/303/304/) on or outside the white reflection plate, so that corresponding color is displayed when the white light transmits the color transparent plates and is reflected.

Claims

1. A display method, comprising:

providing a white reflector for reflecting a white light therefrom; and

providing at least one color filter disposed over said reflector so that the reflected white light can pass through said at least one filter to display a color.

2. A display method according to claim 1, wherein said at least one color filter comprises one or more color filters.

3. A display method according to claim 1, wherein said white reflector and said color filter are planar, cylindrical or semi-cylindrical.

4. A display method according to claim 1, wherein said at least one white reflector and said color filter are overlapped with each other entirely or partially.

5. A display method according to claim 4, wherein there is only one color filter provided and said white reflector and said color filter are overlapped with each other entirely to display the color of said color filter, or partially to display a lighter color.

6. A display method according to claim 1, wherein there are two color filters provided and said white reflector and said color filters are overlapped with each other entirely to display a color resultant from said color filters, or partially to display a lighter color.

7. A display method according to claim 1, wherein there are three color filters provided and said white reflector and said color filters are overlapped with each other entirely to display a color resultant from said color filters, or partially to display a lighter color.

8. A display method according to claim 1, wherein said at least one color filter is cylindrical and consists of a transparent semi-cylinder and a semi-cylindrical color filter.

9. A display method according to claim 8, further comprising

Rotating said at least one color filter;

Various overlapping of said reflector and said color filter displays different colors correspondingly.

10. A display method according to claim 1, wherein said color filters are of yellow color, of sky blue color or of pink color, wherein a green color is resultant from overlapping of the yellow color and the sky blue color;

a blue color is resultant from overlapping of the pink color and the sky blue color;

a red color is resultant from overlapping of the yellow color and the pink color;

a black color is resultant from overlapping of the yellow color and the sky blue color and the pink color.

11. A display method according to claim 1, wherein said color filter is made of a color glass or plastic filter or a transparent glass or plastics coated with a color filter film.

12. A display method according to claim 1, wherein said color filter is made of color transparent sheets or color transparent films, whose transparency is adjusted by a cholesterol or LCD principle.

13. A display method according to claim 1, wherein the white reflector is made of a white plastic plate, a white cardboard, a white aluminum sheet or a white aluminum alloy sheet, or a plastic sheet, a cardboard or an aluminum sheet which are coated with a white reflector film.

14. A display method according to claim 1, wherein said white reflector comprises a white reflector film whose transparency is adjusted by a cholesterol or LCD principle.

15. A display device, comprising

a white reflector for reflecting a white light therefrom;

and

at least one color filter disposed over said reflector so that the reflected white light can pass through said at least one filter to display a color.

16. A display method according to claim 15, further comprising a bracket for supporting said white reflector and said at least one color filter.

17. A display device according to claim 15, wherein the number of said color filters is more than one, and said white reflector and said color filters are overlapped with each other entirely or partially.

18. A display device according to claim 15, wherein said white reflector and said color filter are planar, and the later is overlapped over the former.

19. A display device according to claim 15, wherein said white reflector and said color filter are cylindrical, and the later is overlapped over the former.

20. A display device according to claim 19, further comprising:

A shaft connected to said color filter and said white reflector for supporting said color filter and said white reflector so that said color filter or said color filter and said white reflector can be rotated about said shaft;

A bracket connected to said shaft for supporting the shaft.

21. A display device according to claim 20, further comprising a driving unit connected to said color filter for rotating said color filter about the shaft.

22. A display device according to claim 21, wherein said driving unit comprises:

at least one inductive or permanent magnet provided with said color filter and disposed perpendicularly to the shaft;

at least one electric magnet disposed perpendicularly to the shaft and each surrounded with an electric winding connected to a controller for controlling the display screen, wherein the N and S poles of the surrounded magnet cooperate with those of the inductive magnet or permanent magnet.

23. A display device according to claim 20, further comprising a driving unit connected to said color filter and said white reflector for rotating said color filter and said white reflector about the shaft.

24. A display device according to claim 21, wherein said driving unit comprises:

at least two inductive or permanent magnets provided with said color filter and disposed perpendicularly to the shaft;

at least two electric magnets disposed perpendicularly to the shaft and each surrounded with an electric winding connected to a controller for controlling the display screen, wherein the N and S poles of the surrounded magnets cooperate with those of the inductive magnet or permanent magnets.

25. A display device according to claim 24, wherein said driving unit comprises a bearing means for supporting said surrounded magnets.

26. A display screen comprising a screen frame, a screen mounted to said screen frame, and a controller installed inside said screen frame, wherein said screen comprises a plurality of display cells connected to said controller and each comprising:

a white reflector for reflecting a white light therefrom; and

at least one color filter disposed over said reflector so that the reflected white light can pass through said at least one filter to display a color.

27. A display screen according to claim 26, wherein said display cell further comprises a bracket for supporting said white reflector and said color filter.

28. A display screen according to claim 26, wherein the number of said color filters is more than one, and said color filters are overlapped with each other entirely or partially.

29. A display screen according to claim 26, wherein said white reflector and said color filter are planar, and the later is overlapped over the former.

30. A display screen according to claim 26, wherein said white reflector and said color filter are cylindrical or semi-cylindrical, and the later is overlapped over the former.

31. A display screen according to claim 26, wherein each of said display cells comprises:

A shaft connected to said color filter and said white reflector for supporting said color filter and said white reflector so that said color filter or said color filter and said white reflector can be rotated about said shaft;

A bracket connected to said shaft for supporting the shaft.

32. A display screen according to claim 31, wherein each of said display cells comprises a driving unit connected to said color filter for rotating said color filter about the shaft.

33. A display screen according to claim 32, wherein said driving unit comprises:

at least one inductive or permanent magnet provided with said color filter and disposed perpendicularly to the shaft;

at least one electric magnet disposed perpendicularly to the shaft and each surrounded with an electric winding connected to a controller for controlling the display screen, wherein the N and S poles of the surrounded magnet cooperate with those of the inductive magnet or permanent magnet.

34. A display screen according to claim 31, wherein each of said display cells comprises a driving unit connected to said color filter and said white reflector for rotating said color filter and said white reflector about the shaft.

35. A display screen according to claim 34, wherein said driving unit comprises:

at least two inductive or permanent magnets provided with said color filter and disposed perpendicularly to the shaft;

at least two electric magnets disposed perpendicularly to the shaft and each surrounded with an electric winding connected to a controller for controlling the display screen, wherein the N and S poles of the surrounded magnets cooperate with those of the inductive magnet or permanent magnets.

36. A display screen according to claim 31, wherein each of said display cells comprises at least one inductive or permanent magnet provided with said color filter and disposed perpendicularly to the shaft.

37. A display screen according to claim 36, wherein each of said display cells comprises at least one electric magnet disposed perpendicularly to the shaft and each surrounded with an electric winding connected to a controller for controlling the display screen, wherein the N or S pole of the surrounded magnet cooperate with those of the inductive magnet or permanent magnet.

38. A display screen according to claim 31, wherein each of said display cells comprises at least two inductive or permanent magnets provided with said color filter and said white reflector and disposed perpendicularly to the shaft.

39. A display screen according to claim 38, wherein each of said display cells comprises a driving unit including at least two electric magnets disposed perpendicularly to the shaft and each surrounded with an electric winding connected to a controller for controlling the display screen, wherein the N or S pole of the surrounded magnets cooperate with those of the inductive magnet or permanent magnet.

40. A display screen according to claim 39, wherein there are one or more driving units provided.

41. A display screen according to claim 39, wherein said driving unit comprises a bearing means for supporting said surrounded magnet.

42. A display screen according to claim 31, wherein said display screen comprises an array of display cells.

43. A display screen according to claim 42, wherein the display screen comprises an array of LEDs placed at the upper-left, lower left, upper right and lower right corners of each of the display cells or between the display cells.