Abstract:
A system for displaying images includes: (a) a base; (b) a movable, arcuate-shaped receptacle that rotates into and from the base; and (c) a display attached to the receptacle so that the display is visible when the receptacle is rotated from the base and the display is partially or entirely not visible when the receptacle is rotated into the base.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This is a continuation-in-part of application Ser. No. 10/621,898, filed Jul. 17, 2003 now abandoned entitled “Rotatably Retractable Image Display System” by Thomas M. Stephany et al. 
    
    
     FIELD OF THE INVENTION 
     The invention relates generally to the field of displays and display enabled devices and, more particularly, to such devices having an arcuate-shaped rotatable enclosure that holds a display which, when retracted, is safely hidden and protected from viewing. This system of the present invention, when rotatably retracted, both removes power from the display or system, and protects the display screen. The rotatable arcuate-shaped display enclosure comprises an extremely safe and padded surface; the surface having no injurious portions making the use of this implementation highly desirable in aircraft, automobiles and consumer devices for the prevention of injuries to a user. There exists no sharp edges or flimsy flat panels to break. When the display is extracted from the arcuate-shaped housing the display displays normally, but is still recessed and still possesses all the afore properties. The implementation improves robustness, safety and maintenance costs that make this display system especially advantageous. 
     BACKGROUND OF THE INVENTION 
     Display systems are currently available for permitting viewing of images thereon. They are commonly used in automobiles such as police cars, and aircraft for showing movies and the like. Such displays are available from a number of sources including Sanyo and Sony of Japan, and Philips in the Netherlands. Displays are also commonly used in laptop computers from a variety of manufacturers such as IBM. These types of displays demonstrate extreme drawbacks for many mobile applications in that they include sharp square edges which are unsafe in an accident and generally delicate if not carefully retracted into a closed position. 
     Although these currently available technologies are demonstrated as being satisfactory for rudimentary consumer purposes, they are not acceptable for use in value applications such as automobiles and aircraft where safety and ruggedness and low service costs are necessary and desirable. Therefore, a need exists for providing improved retractable display systems that are acceptable for widespread commercial adoption. 
     SUMMARY OF THE INVENTION 
     The present invention is directed to overcoming one or more of the problems set forth above. Briefly summarized, according to one aspect of the present invention, the present invention resides in a system for displaying images comprising a base; which contains a movable, arcuate-shaped display receptacle that rotates into and out of the base, and a display attached to the receptacle so that the display is visible when the receptacle is rotated from the receptacle and the display is partially or entirely not visible when the receptacle is rotated into the base. 
     The above and other objects of the present invention will become more apparent when taken in conjunction with the following description and drawings wherein identical reference numerals have been used, where possible, to designate identical elements that are common to the figures. 
     ADVANTAGEOUS EFFECT OF THE INVENTION 
     The present invention has the advantage of providing safe, robust and low maintenance cost viewing in a relatively small device. It also includes the ability of viewing when rotatably extracted, and not being viewed when rotatably retracted. Extreme safety is achieved by virtue of the arcuate-shaped cylindrical design. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIGS. 1   a  and  1   b  are a perspective view of an arcuate-shaped display tube and its respective arcuate-shaped receptacle; 
         FIG. 1   c  is a perspective view of system such as a PDA or computer with the arcuate-shaped display receptacle rotated into the base; 
         FIG. 1   d  is a perspective view of system such as a PDA or computer with the arcuate-shaped display receptacle rotated out of the base; 
         FIGS. 2   a  and  2   b  are a rear perspective view of a chair such as might be found in commercial aircraft or an automobile with an arcuate-shaped display as part of the headrest with the arcuate-shaped display receptacle rotated into and out of its base; 
         FIG. 3   a  is a side view of a ceiling mounted display in front of a chair showing the arcuate-shaped display rotated into its base; 
         FIG. 3   b  is a side view of a ceiling mounted display in front of a chair showing the arcuate-shaped display rotated out of its base; 
         FIGS. 4   a  and  4   b  are a perspective view and end view of an alternative embodiment of the display tube; and 
         FIG. 5  is a perspective view of an airplane in which the display tube and receptacle may be disposed for use in transportation. 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     In the following description, the present invention will be described in the preferred embodiment as a system displaying images. The invention refers to a safe, robust and low maintenance viewing system that can be part of a small device. In particular the display is protected against accidental dropping when used in a PDA or a computer system and an object or person striking it when used in a system in a commercial or consumer vehicle. In the latter case this provides protection for the display as well as users. 
     Referring first to  FIGS. 1   a  and  1   b , a drawing of an arcuate-shaped display tube  10  is represented upon which a display  20  is attached. The attached display  20  can be constructed from a number of technologies such as LCD or Organic LED&#39;S, and is displaced upon a flat section  30  of the display tube  10 . The flat section  30  can be rotated about the two rotational members  40 . This configuration allows the display  20  to be rotated into an arcuate-shaped base  50  and rotational member receptacles  60 . 
     Referring now to  FIG. 1   c , a consumer device such as a PDA  70  is shown and is represented in a manner in which a display is rotated into the PDA base  80 , representing a closed position. 
     Referring next to  FIG. 1   d , the display  20  is rotated out of the PDA base  80  and represents an open and operational condition. When closed, the display  20  is protected and through the use of an automatic off/on switch (not shown), power is removed by being actuated at some predetermined position within the rotation of the arcuate-shaped tube  10 . When the display  20  is rotated to the open position, determined by the aforementioned predetermined position, the power is automatically turned on and the display  20  is ready for viewing. 
     Referring to  FIGS. 2   a  and  2   b , seen is an embodiment where the arcuate-shaped display receptacle  50 , (from  FIG. 1 ) is designed to be part of the headrest  90  of a chair  100  such as might be found on an airplane, train, or bus. The headrest  90  appears as one continuous piece when display is rotated into the base but upon rotation away from the base the person sitting behind the chair is able to view a high quality display  110 . Simply rotating the display turns it off and with no sharp edges provides a supreme measure of safety. It is known that sharp edged interior surfaces contribute to severity of injuries when passengers accidentally fall or are thrust into these surfaces. Therefore, removal of the sharp edges will result in reduced severity of injuries. 
     Referring to  FIG. 3   a  is an embodiment wherein a high quality display  110  is mounted above a person  120  as for example in an airline seat  130 . Rotating the arcuate-shaped tube  10  (from  FIG. 1 ), allows the person  120  to align the high quality display  110  for optimum viewing as shown in  FIG. 3   b . Note that in current embodiments on airplanes, displays are often rectangular shaped and hazardous wherein the current embodiment provides additional passenger safety and robustness. 
     Referring to  FIGS. 4   a  and  4   b , there is shown an alternative embodiment of the present invention that includes the base or receptacle  50  which is the same as described hereinabove and a cylinder (or tube)  140  that includes chamfered edges as described hereinbelow. In this regard, the cylindrically-shaped cylinder  140  includes a display  150  that is disposed in a recessed portion  160  of the cylinder  140 . A portion of plush material  170 , such as foam covered with a fabric or a spongy fabric, extends from the all four sides of the display, and the plush material includes four fillet edges  180   a - 180   d  for eliminating sharp or pointed edges and providing smooth transitions between surfaces and they also provide additional padding. The cylinder  140  also includes four chamfered edges  190   a - 190   d  on its exterior portion for eliminating sharp or pointed edges on the exposed portion of the cylinder  140  and providing smooth transitions between surfaces. The fillet edges  180   a - 180   d  and the chamfered edges  190   a - 190   d  obviously provide safety to persons in the vicinity of the cylinder  140 . It is noted that the display  150  may be a OLED, LCD or plasma type in their construction. 
     Referring to  FIG. 5 , there is shown a self-propelled vehicle  200  having a seat  210 , an airplane, in which the cylinder or tube  140  or  10 , and display  150  or  20  in its receptacle  50  may be disposed for use in transportation. Although an airplane is shown, the vehicle  200  may be a train, automobile, boat or the like. 
     The invention has been described with reference to a preferred embodiment. However, it will be appreciated that variations and modifications can be effected by a person of ordinary skill in the art without departing from the scope of the invention. 
     PARTS LIST 
     
         
           10  arcuate-shaped display tube 
           20  display 
           30  flat section 
           40  rotational members 
           50  arcuate-shaped base (display receptacle) 
           60  rotational member receptacles 
           70  PDA 
           80  PDA Base 
           90  headrest 
           100  chair 
           110  high quality display 
           120  person 
           130  airline seat 
           140  cylinder 
           150  display 
           160  recessed portion 
           170  plush material 
           180   a - 180   d  four fillet edges 
           190   a - 190   d  four chamfered edges 
           200  self-propelled vehicle 
           210  seat