1. Field of the Invention
The present invention is for an electronic sign, but more precisely relates to a thermoplastic elastomer protective louver covering for use with an electronic display module for the protection of persons coming into inadvertent contact with an electronic display module incorporating the thermoplastic protective louver covering and for protection of the electronic display module itself.
2. Description of the Prior Art
Prior art electronic information displays incorporating electronic display modules are often placed in close physical proximity to a sporting event. A participating player in a sporting event who runs into the electronic display can possibly cause damage to himself or herself or to the electronic display module components. Electronic display modules often contain formed louver components extending outwardly to shade LEDs for better visual perception. When the louvers are contacted with force by a sports person, the louvers could puncture the players skin or otherwise cause injury to the player. Other damage may be incurred by errant sports equipment, such as a sports ball hitting the electronic display module. Measures were taken to overcome the shortcomings of prior art devices including the addition of a protective sheet of Plexiglass® or other like material across the entire face of multiple electronic display modules making up the forward portion of an electronic sign display. Heat and cold often compromised the use of Plexiglass®, wherein expansion and contraction with extreme heat or cold complicated the design. Plexiglass® sheet splices proved unsatisfactory in that players impinging an unsupported seam between adjacent Plexiglass® sheets could be injured. To counteract such an arrangement, sheets were overlapped, thereby creating an undesirable visual aberration. Additionally, Plexiglass® is reflective wherein light sources reflecting from the Plexiglass® surface could be distractive to the player or to a sports fan. The reflective problem was overcome somewhat by adding a matte coating to the Plexiglass® at the cost of reduced visual acuity. Often these or other additional remedial steps incurred additional production time and expense. What is needed is a protective device for use with an electronic display module in an electronic display which offers protection both for the electronic display module and the athlete, while maintaining good visual contrast, viewing angles, and overall appearance.
The general purpose of the present invention is to provide a thermoplastic elastomer protective louver covering for use with an electronic display module.
According to one or more embodiments there is provided a thermoplastic elastomer protective louver covering, the present invention, shown in use with an electronic display module where the protective louver covering comprised of, but not limited to, thermoplastic elastomer, also known as TPE, is overmolded to the outermost surface of the electronic display module, i.e., to the exterior of the louver located at the forward portion of the electronic display module. A plurality of elongated holes, which are in the thermoplastic elastomer protective louver covering, allow components of an electronic display module including, but not limited to, a plurality of protruding louvers and a corresponding plurality of closely associated pixels comprised of groups of light emitting diodes (LEDs) extending therethrough, to be viewed unobstructed and unhampered. The thermoplastic elastomer protective louver covering is overmolded on the louver panel to a suitable depth of protection which is preferably at least thicker than the depth of the exposed louver panel components and covers up any sharp, pointed or other potentially player-damaging shapes of the louvers on the louver panel. The thermoplastic elastomer protective louver covering provides protection to points of contact between the player and the electronic display module because of the thickness and inherent properties of the thermoplastic elastomer which make the thermoplastic elastomer elastic and flexible and impact absorbent. The thermoplastic elastomer material is also resistant to abrasion and is suitable for use in a wide range of temperatures. The thermoplastic elastomer can be sized to the individual electronic display module and not to the overall size of an electronic sign display, thereby eliminating the need for large and unwieldy protective sheets. The thermoplastic elastomer protective louver covering is thusly located at the area where possible contact could occur between the players or sports items, such as a ball or other related items, and the electronic display modules. When player/panel impact does occur, the thermoplastic elastomer protective louver covering absorbs some of the energy so that the consequential impacting damages are reduced to both the player and the electronic display module. The thermoplastic elastomer protective louver covering can be suitably shaped to allow for maximum vertical and horizontal views of the LEDs comprising the LED pixels. The thermoplastic elastomer protective louver covering is shown in use and in intimate or near intimate contact with supporting and otherwise related and closely associated components of an electronic display module including, but not limited to, a louver panel, an LED display panel, and a housing.
One significant aspect and feature of the present invention is the use of a thermoplastic elastomer protective louver covering overmolded onto louvers and onto other features of the louver panel of an electronic display module.
Another significant aspect and feature of the present invention is a thermoplastic elastomer protective louver covering overmolded onto components of a louver panel to a suitable depth of protection which is preferably at least thicker than the depth of the exposed louver components to cover up any sharp, pointed or other potentially player-damaging shapes of the louver panel.
Another significant aspect and feature of the present invention is the use of a thermoplastic elastomer protective louver covering to space underlying components of the louver panel from the players to protect the players from collision injury.
Another significant aspect and feature of the present invention is the use of an impact absorbent thermoplastic elastomer protective louver covering to protect the structure of an electronic display module from impact injury caused by impact of a player or sport equipment.
Another significant aspect and feature of the present invention is the use of holes within the thermoplastic elastomer protective louver covering which accommodate the extension of light emitting diodes and extension of corresponding louvers of a louver panel therethrough to facilitate shaded, uncovered, unobstructed and unhampered viewing of the light emitting diodes.
Still another significant aspect and feature of the present invention is the use of protective protrusions extending from a planar base of the thermoplastic elastomer protective louver covering having angled geometrically configured shapes on the exterior exposed surface thereof, such as, but not limited to, opposed angled recesses having sculpted surfaces which allow viewing of light emitting diodes from the side at 70 degrees each side of the vertical centerline at maximum vertical and horizontal sighting views.
Still another significant aspect and feature of the present invention is the use spaces between rows of protective protrusions at the exterior exposed surface of the thermoplastic elastomer protective louver covering which allow viewing of light emitting diodes from the side at maximum vertical and horizontal sighting views.
Still another significant aspect and feature of the present invention is the use of a thermoplastic elastomer whereby heat or cold variations are of little consequence due to the elastic qualities of the thermoplastic elastomer protective louver covering.
Yet another significant aspect and feature of the present invention is the use of a thermoplastic elastomer which exhibits minimal reflection and can be painted to further improve contrast.
Having thus briefly described embodiments of the present invention and having mentioned some significant aspects and features of the present invention, it is the principal object of the present invention to provide a thermoplastic elastomer protective louver covering for use with an electronic display module.
Other objects of the present invention and many of the attendant advantages of the present invention will be readily appreciated as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings, in which like reference numerals designate like parts throughout the figures thereof and wherein:
The protective louver covering 10 includes structure complementary to the LED pixel columns 20a-20n, the hole group columns 22a-22n, and the louver group columns 24a-24n. Arrangements of vertically aligned elongated hole columns 26a-26n are included to extend through a planar base 28 of the protective louver covering 10 to accommodate the LED pixel columns 20a-20n and the louver group columns 24a-24n which pass through the planar base 28 when the protective louver covering 10 is in intimate contact with the electronic display module 12. When assembled, geometrically configured horizontally oriented protrusion rows 30a-30n protectively extend outwardly from the planar base 28 and beyond the LED pixel columns 20a-20n and the louver group columns 24a-24n. The relationship and association of the LED pixel columns 20a-20n, the hole group columns 22a-22n, the louver group columns 24a-24n, and the geometrically configured protrusion rows 30a-30n are described later in detail. It is to be appreciated that some of the groups of LED pixel columns 20a-20n, hole group columns 22a-22n, and louver group columns 24a-24n may not include complete sets of three items, particularly those columns shown along and about the edges of the associated structures. Correspondingly, the elongated holes of the elongated hole columns 26a-26n and the protrusions in the protrusion rows 30a-30n of the protective louver covering 10 may not be complete structures, particularly those shown along and about the edges of the associated structures. Also shown are a plurality of vertically aligned slits 32a-32n extending along the face of the protective louver covering 10 to simulate seams formed between multiple electronic display module 12 boundaries, thereby making the seams less noticeable to the viewer.
The structure of the protective louver covering 10 is designed to accommodate the LED pixel columns 20a-20n and the structure of the louver group columns 24a-24n and to allow viewing of each and every LED of the LED pixel columns 20a-20n from various positions, the columns and rows and relationships thereof now being further designated and described. The elongated holes of the elongated hole columns 26a-26n are further designated and referred to having suffixes to indicate individual elongated holes, whereby the first elongated hole in the elongated hole column 26a would be elongated hole 26a-1, the second elongated hole in the elongated hole column 26a would be elongated hole 26b-1, and so on in the same manner until reaching elongated hole 26n-1. In a like manner, the protrusions of the protrusion rows 30a-30n are further designated and referred to having suffixes to indicate individual protrusions, whereby the first protrusion in the protrusion row 30a would be protrusion 30a-1, the second protrusion in the protrusion row 30a would be protrusion 30a-2, and so on in the same manner until reaching protrusion 30a-n. Additionally, horizontally aligned spaces 70a-70n are included between successive protrusion rows 30a-30n which allow angular viewing of the top and bottom LEDs comprising pixels of the LED pixel columns 20a-20n. Each of the protrusions included in protrusion rows 30a-30n includes opposed angled recesses 72a and 72b having surfaces which are sculpted surfaces allowing angular viewing of each of the center LEDs comprising pixels of the LED pixel columns 20a-20n. The opposed angled recesses 72a and 72b are angled from the general plane of the outer surface of the protrusions of the protrusion rows 30a-30n, the deepest part being toward and forming part of the edges of the adjacent elongated holes of the elongated hole columns 26a-26n. The bottom of each protrusion of the protrusion columns 30a-30n includes an arcuate recess 74 for accommodation of the top LED forming each of the pixels of each of the LED pixel columns 20a-20n. Viewing of the pixels of the LED pixel columns 20a-20n when directly in front of the LED pixel columns 20a-20n, whether at the same level or at a lower level, affords direct viewing of all of the LEDs forming the LED pixel columns 20a-20n, and viewing of the LED pixel columns 20a-20n when off to the side of the LED pixel columns 20a-20n, whether at the same level or at a lower level, also affords direct viewing of all of the LEDs forming the LED pixel columns 20a-20n. Alignment of the LED pixel columns 20a-20n, with features of the louver panel 14 and the protective louver covering 10, is shown in the figures that follow.
Various modifications can be made to the present invention without departing from the apparent scope thereof.
This application is related to U.S. utility patent application Ser. No. 10/688,304 filed Oct. 17, 2003, entitled “Electronic Display Module Having a Four-Point Latching System for Incorporation into an Electronic Sign and Process”, which is now U.S. Pat. No. 7,055,271.