Thin-type display device

• US 20050205731A1
• Filed: 08/08/2003
• Published: 09/22/2005
• Est. Priority Date: 08/22/2002
• 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: Shimizu, Masaki, Yoshii, Takashi
• Granted Patent: US 7,448,580 B2
• Time in Patent Office: Days
• US Class Current: 248/176.300
• CPC Class Codes: F16M 11/105 the horizontal axis being the roll axis, e.g. for creating a landscape-portrait rotation
• CPC Class Codes: F16M 11/24 changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each otherF16M11/42 takes precedence
• CPC Class Codes: G09F 9/00 Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the variable information is permanently attached to a movable support G09F11/00; abacus G06C1/00; slide-rules G06G1/00
• CPC Class Codes: Y10S 248/92 Angular and linear video display screen support adjustment

Abstract

A flat panel display apparatus is provided which is capable of conducting a transition of a display unit between the landscape and portrait orientation at one step and rotating around the substantial central portion of said display unit. The flat panel display apparatus includes a thin flat display unit (1) having a rectangular shape display screen thereon; a stand unit (2) for supporting said display unit (1); and a horizontal rotary axis (3) which is secured to the display unit (1) on its rear side in the substantial center thereof and which holds said display unit (1) so that display unit (1) is rotatable by at least 90 relative to said stand unit (2) and is characterized in that said display apparatus is provided with translational motion means (21, 22, 23) which causes the translational motion of said display unit (1) in a vertical direction in an interlocking manner with the rotation of said horizontal rotary axis (3).

Claims

1. A flat panel display apparatus including

a thin flat display unit having a rectangular shape display screen thereon;

a stand unit for supporting said display unit; and

a horizontal rotary axis which is secured to said display unit on the center of its rear side and which holds said display unit so that display unit is rotatable by at least 90′

relative to said stand unit, wherein

said display apparatus is provided with translational motion means which causes the translational motion of said display unit in a vertical direction by moving the horizontal rotary axis in a vertical direction in an interlocking manner with the rotation of said horizontal rotary axis.

2. A flat panel display apparatus as defined in claim 1, wherein said translational motion means is provided on said stand unit.

3. A flat panel display apparatus as defined in claim 2, wherein said translational motion means comprises a vertical lifting axis, on which said horizontal rotary axis is rotatably mounted and which is movable in a vertical upward or downward direction, and

a cam portion which abuts to said vertical lifting axis and is interlocked with the rotation of said horizontal rotary axis so that it is rotated.

4. A flat panel display apparatus as defined in claim 3, wherein said vertical lifting axis is provided with a guide for guiding the rotation of said cam portion.

5. A flat panel display apparatus as defined in claim 3 or 4, wherein said stand unit is provided with a guide for guiding the rotation of said cam portion.

6. A flat panel display apparatus as defined in claim 3 or 4, wherein said stand unit is provided with a rotation restriction portion which abuts on a part of said cam portion or said horizontal rotary axis for restricting the range of the rotation of said horizontal rotary axis.

7. A flat panel display apparatus as defined in claim 3 or 4, wherein said stand unit is provided therein with biasing means for biasing said vertical lifting axis in a vertical upward or downward direction to apply a load upon the rotation of said display unit.

8. A flat panel display apparatus as defined in claim 1, wherein said translational motion means is provided on said horizontal rotary axis.

9. A flat panel display apparatus as defined in claim 8, wherein said translational motion means comprises a cam portion which abuts on said stand unit in such a manner that said cam portion is movable in a vertical direction and is rotated in an interlocking manner with said horizontal rotary axis.

10. A flat panel display apparatus as defined in claim 9, wherein said stand unit is provided with a guide for guiding the rotation of said cam portion.

11. A flat panel display apparatus as defined in claim 9 or 10, wherein said stand unit is provided with a rotation restriction portion which abuts on a part of said cam portion or said horizontal rotary axis for restricting the range of the rotation of said horizontal rotary axis.

12. A flat panel display apparatus as defined in claim 1, wherein said translational motion means is provided on both of said display unit and said stand unit.

13. A flat panel display apparatus as defined in claim 12, wherein said translational motion means comprises

at least one projection which is provided on the rear side of said display unit,

a vertically movable vertical lifting axis on which said horizontal rotary axis is rotatably mounted, and

a rail which is provided on said stand unit for controlling the vertical movement of said vertical lifting axis by guiding the trajectory of said projection which is caused by the rotation of said display unit.

14. A flat panel display apparatus as defined in claim 13, wherein said rail has substantially rectilinear shape or upwardly convex shape.

15. A flat panel display apparatus as defined in claim 13 or 14, wherein said rail is provided on its inner periphery with a corrugated portion which is engaged in said projection.

16. A flat panel display apparatus as defined in claim 13 or 14, wherein said projection comprises a roller which can be rolled on and along the inner face of said rail while said roller abuts thereon.

17. A flat panel display apparatus as defined in claim 13 or 14, wherein a concave or convex for preventing said projection from escaping from said rail is provided on the inner periphery of said rail or the outer periphery of said projection.

18. A flat panel display apparatus as defined in claim 13 or 14, wherein a fabric material for suppressing the wearing of said rail and said projection is applied on the inner periphery of said rail or outer periphery of said projection.

19. A flat panel display apparatus as defined in claim 13 or 14, wherein said stand unit is provided with biasing means for preventing said vertical lifting axis from abruptly moving in a vertical direction.

20. A flat panel display apparatus as defined in claim 13 or 14, wherein said rail or said projection is provided with biasing means for mitigating the shock due to abrupt rotation of said projection.

21. A flat panel display apparatus as defined in claim 5, wherein said stand unit is provided with a rotation restriction portion which abuts on a part of said cam portion or said horizontal rotary axis for restricting the range of the rotation of said horizontal rotary axis.

22. A flat panel display apparatus as defined in claim 5, wherein said stand unit is provided therein with biasing means for biasing said vertical lifting axis in a vertical upward or downward direction to apply a load upon the rotation of said display unit.

23. A flat panel display apparatus as defined in claim 6, wherein said stand unit is provided therein with biasing means for biasing said vertical lifting axis in a vertical upward or downward direction to apply a load upon the rotation of said display unit.

24. A flat panel display apparatus as defined in claim 15, wherein said projection comprises a roller which can be rolled on and along the inner face of said rail while said roller abuts thereon.

25. A flat panel display apparatus as defined in claim 15, wherein a concave or convex for preventing said projection from escaping from said rail is provided on the inner periphery of said rail or the outer periphery of said projection.

26. A flat panel display apparatus as defined in claim 16, wherein a concave or convex for preventing said projection from escaping from said rail is provided on the inner periphery of said rail or the outer periphery of said projection.

27. A flat panel display apparatus as defined in claim 15, wherein a fabric material for suppressing the wearing of said rail and said projection is applied on the inner periphery of said rail or outer periphery of said projection.

28. A flat panel display apparatus as defined in claim 16, wherein a fabric material for suppressing the wearing of said rail and said projection is applied on the inner periphery of said rail or outer periphery of said projection.

29. A flat panel display apparatus as defined in claim 17, wherein a fabric material for suppressing the wearing of said rail and said projection is applied on the inner periphery of said rail or outer periphery of said projection.

30. A flat panel display apparatus as defined in claim 15, wherein said stand unit is provided with biasing means for preventing said vertical lifting axis from abruptly moving in a vertical direction.

31. A flat panel display apparatus as defined in claim 16, wherein said stand unit is provided with biasing means for preventing said vertical lifting axis from abruptly moving in a vertical direction.

32. A flat panel display apparatus as defined in claim 17, wherein said stand unit is provided with biasing means for preventing said vertical lifting axis from abruptly moving in a vertical direction.

33. A flat panel display apparatus as defined in claim 18, wherein said stand unit is provided with biasing means for preventing said vertical lifting axis from abruptly moving in a vertical direction.

34. A flat panel display apparatus as defined in claim 15, wherein said rail or said projection is provided with biasing means for mitigating the shock due to abrupt rotation of said projection.

35. A flat panel display apparatus as defined in claim 16, wherein said rail or said projection is provided with biasing means for mitigating the shock due to abrupt rotation of said projection.

36. A flat panel display apparatus as defined in claim 17, wherein said rail or said projection is provided with biasing means for mitigating the shock due to abrupt rotation of said projection.

37. A flat panel display apparatus as defined in claim 18, wherein said rail or said projection is provided with biasing means for mitigating the shock due to abrupt rotation of said projection.

38. A flat panel display apparatus as defined in claim 19, wherein said rail or said projection is provided with biasing means for mitigating the shock due to abrupt rotation of said projection.