VIDEO DISPLAY SYSTEM

• US 20110058326A1
• Filed: 05/07/2009
• Published: 03/10/2011
• Est. Priority Date: 05/07/2008
• Status: Active Grant

• Current Assignee: Comark, LLC
• Original Assignee: Greystoke Consultancy Partnership Limited, Venture Dynamics Corporation
• Inventors: Bolton, Christopher John, Idems, Ralph, Yan, George
• Granted Patent: US 8,472,174 B2
• Time in Patent Office: Days
• US Class Current: 361/679.21
• CPC Class Codes: G09F 9/30 in which the desired character or characters are formed by combining individual elements panels comprising a number of electrodes in a single cell controlling light arriving from an independent light source, e.g. electro-optical or magneto-optical cell, G02F1/00
• CPC Class Codes: G09F 9/35 being liquid crystals G09F9/302 takes precedence; liquid crystal materials C09K19/00; liquid crystal panels comprising a number of electrodes in a single cell per se G02F1/13
• CPC Class Codes: H05K 7/20972 Forced ventilation, e.g. on heat dissipaters coupled to components

Abstract

A video screen enclosure is disclosed for housing a flat panel video display unit (“FPD”), comprising a housing and a front panel member joined to the housing with an airtight seal. An environmental control unit (“ECU”) within housing includes means to internally circulate air within said enclosure to maintain a temperature within a range suitable for operation of said display, and a control system to maintain the interior temperature within said enclosure within a selected range suitable for operation of said FPD. The enclosure may form a sealed unit with interior air being recirculated through said ECU, or ambient air may be circulated through the enclosure.

Claims

1-25. -25. (canceled)

26. A video screen enclosure system for displaying a flat panel video display unit (“

FPD”

), comprising a housing, a front panel member mounted to said housing with an airtight seal, said front panel member including a clear viewing panel, a rear panel member, a mount for retaining said FPD within said housing to provide an air gap between said FPD and said front and rear panel members with said air gap at least partially surrounding said FPD, an air inlet to permit exterior air to enter into said housing, an air outlet to exhaust air from said housing, an air circulation subsystem to draw exterior air into said housing through said inlet and circulate ambient air within said housing in a laminar flow air current across front and rear faces of said FPD, a temperature sensor, and an environmental control unit (“

ECU”

) responsive to said temperature sensor and configured to control said air circulation means to maintain the interior temperature within said housing within a selected range suitable for operation of said FPD.

27. A system as defined in claim 26 wherein said air circulation subsystem comprises an inlet manifold, a speed-controlled fan, an exhaust outlet, and optionally at least one baffle configured to direct said laminar flow air current across the front and rear faces of said FPD.

28. A system as defined in claim 26 wherein said front panel member is engaged to said housing with a first pivotal engagement and said FPD is engaged to said housing with a second pivotal engagement independent of said first pivotal engagement, said first and second pivotal engagements being configured to permit said panel member and said FPD respectively to pivot outwardly from said housing independently of each other along parallel axes of rotation to permit access into the interior of said housing.

29. A system as defined in claim 28 wherein at least one of said first and second pivotal engagements comprises mutually engaging surfaces configured to oppose each other and rest one upon the other.

30. A system as defined in claim 29 wherein said mutually engaging surfaces comprise upwardly and downwardly projecting surfaces respectively, configured to interlock when engaged.

31. A system as defined in claim 28 further comprising struts connecting said front panel member and said FPD to said housing to retain said panel member and FPD respectively in an open position, said struts having releasable mounts to permit rapid disconnection of said FPD and front panel member from said housing.

32. A system as defined in claim 26 further comprising means to shut down power to said FPD when said interior temperature is outside said range.

33. A system as defined in claim 26 further comprising one or more sensors to detect intrusion into said enclosure, breakage of said front panel member, or movement of said enclosure, said ECU comprising means responsive to said sensors to shut down power to said FPD or transmit an alarm signal to a remote recipient.

35. A system as defined in claim 26 further comprising an FPD.

36. A display system comprising a support frame and at least one video screen enclosure system as defined in claim 26 mounted to said frame configured to form a multi-sided display module wherein said video screen enclosure system forms comprises at least one side of said module.

37. A system as defined in claim 36 wherein said frame is configured to retain at least two of said enclosures in angled relationship to each other.

38. A system as defined in claim 37 comprising a substantially enclosed structure defining an interior space, wherein said enclosures face outwardly from said structure.

39. A system as defined in claim 36 configured to form a component of a transit shelter.

40. A system as defined in claim 36 configured as a triangular structure having three generally vertically oriented rectangular sidewalls at least one of which comprises said video screen enclosure system.

34. A video screen enclosure system for displaying a flat panel video display unit (“

FPD”

), comprising a housing, a front panel member mounted to said housing with an airtight seal, said front panel member including a clear viewing panel, a rear panel member, means to mount said FPD within said housing to provide an air gap between said FPD and said front and rear panel members with said air gap at least partially surrounding said FPD, a fan to circulate air within said housing in a laminar flow pattern across front and rear faces of said FPD, a temperature sensor, an environmental control unit (“

ECU”

) responsive to said temperature sensor configured to control said means to circulate air to maintain the interior temperature within said housing within a selected range suitable for operation of said FPD, and at least one baffle configured to direct said laminar flow air current across the front and rear faces of said FPD within said housing.