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Display device including a unitary, rigid sheet defining a left center panel, a right center panel pivotally connected to the left center panels, a left side panel pivotally connected to the left center panel and a right side panel pivotally connected to the right center panel. Vertically extending

Display device including a unitary, rigid sheet defining a left center panel, a right center panel pivotally connected to the left center panels, a left side panel pivotally connected to the left center panel and a right side panel pivotally connected to the right center panel. Vertically extending separation lines are formed on a rear planar layer without penetrating or cutting a front planar layer so that the panels are able to pivot about vertical axes. Fold lines may be formed opposite the separation lines on the front planar layer to facilitate folding the sheet whereby the fold lines define the vertical axes about which the panels pivot. Folding of the sheet provides a compact configuration which enables the display device to be easily carried.

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1. A display board, comprising: a substantially planar center panel having a front face, a rear face and a vertical fold or bend line extending between upper and lower edges of said front face that enables folding of said center panel about said fold or bend line;a substantially planar left side pan

1. A display board, comprising: a substantially planar center panel having a front face, a rear face and a vertical fold or bend line extending between upper and lower edges of said front face that enables folding of said center panel about said fold or bend line;a substantially planar left side panel pivotally connected to a left edge of said center panel, said left side panel having a front face;a substantially planar right side panel pivotally connected to a right edge of said center panel, said right side panel having a front face;rotation means for enabling said left and right side panels to rotate almost 360° relative to said center panel, said rotation means being arranged such that said left side panel is inwardly foldable relative to said center panel to enable said front face of said left side panel to face said front face of a first portion of said center panel on a first side of said fold or bend line and such that said right side panel is inwardly foldable relative to said center panel to enable said front face of said right side panel to face said front face of a second portion of said center panel on a second side of said fold or bend line; anda one-piece flap integrally connected to said upper edge of said center panel about a fold or bend line and spanning across said fold or bend line of said center panel such that said flap spans across portions of said center panel on both sides of said fold or bend line of said center panel,said flap including a fold or bend line aligning with said fold or bend line of said center panel and having a front face contiguous with said front face of said center panel,said fold or bend lineflap being arranged to pivot rearward to stabilize the display board when said left and right side panels are arranged at an acute angle relative to said center panel,said flap being arranged relative to said center panel to provide the display board with a stable display state in which said front face of said center panel faces a forward direction, said front faces of said left and right side panels are arranged at an acute angle to said front face of said center panel and said flap is pivoted rearward about said fold or bend line between said flap and said center panel to be at an acute angle to said rear face of said center panel. 2. A display board, comprising: a substantially planar center panel including a fold or bend line in an approximate middle region which enables said center panel to be folded, said fold or bend line extending between lower and upper edges of said center panel;a substantially planar left side panel pivotally connected to a left edge of said center panel and having a width about ½ the width of said center panel such that said left side panel is foldable against said center panel;a substantially planar right side panel pivotally connected to a right edge of said center panel and having a width about ½ the width of said center panel such that said right side panel is foldable against said center panel; anda one-piece flap integrally connected to said upper edge of said center panel about a fold or bend line, said flap including a flap fold or bend line aligning with said fold or bend line of said center panel and having a front face contiguous with said front face of said center panel, said flap being arranged to pivot rearward to stabilize the display board when said left and right side panels are arranged at an acute angle relative to said center panel,said flap having a first portion on one side of said flap fold or bend line and a second portion on the other side of said flap fold or bend line such that said flap spans across portions of said center panel on both sides of said fold or bend line of said center panel,said flap being arranged relative to said center panel to provide the display board with a stable display state in which said front face of said center panel faces a forward direction, said front faces of said left and right side panels are arranged at an acute angle to said front face of said center panel and said flap is pivoted rearward about said fold or bend line between said flap and said center panel to be at an acute angle to a rear face of said center panel. 3. The display board of claim 2, wherein said fold or bend line of said center panel is formed by a pair of parallel cut scores or deep scores optionally angled to one another or wavy. 4. The display board of claim 2, wherein said center, left side and right side panels and said flap are formed from a common substrate. 5. The display board of claim 2, further comprising attachment means for attaching said flap, at a location apart from said fold or bend line between said flap and said center panel, to a rear surface of said center panel. 6. The display board of claim 5, wherein said attachment means are arranged on at least one of a rear face of said flap and said rear face of said center panel. 7. The display board of claim 2, wherein said flap has a width equal to or less than a width of said center panels such that said flap does not extend alongside said left or right side panels. 8. The display board of claim 2, further comprising a cut score, deep score or slit formed in a rear surface of the display board at each of a fold or bend line between said left side panel and said center panel, a fold or bend line between said right side panel and said center panel, said fold or bend line between said center panel and said flap and said fold or bend line extending through said center panel and said flap. 9. The display board of claim 2, wherein said fold or bend line of said center panel is formed by a pair of parallel cut scores or deep scores optionally angled to one another or wavy and said flap fold or bend line only intermittently extends through said flap. 10. The display board of claim 4, further comprising a cut score, deep score or slit formed in a rear surface of and at said upper edge of said center panel to enable the rearward pivotal movement of said flap. 11. The display board of claim 5, wherein said attachment means comprise hook and loop fasteners. 12. The display board of claim 2, wherein: a front surface of said center, left side and right side panels is made of the same material to enable display or presentation on said material, anda rear surface of said center, left side and right side panels is made of the same material to enable display or presentation on said material. 13. The display board of claim 12, wherein the material constituting the front surface of said center, left side and right side panels has at least one different property than the material constituting the rear surface of said center, left side and right side panels. 14. The display board of claim 2, further comprising rotation means for enabling said left and right side panels to rotate almost 360° relative to said center panel. 15. The display board of claim 1, wherein said rotation means enable said left and right side panels to rotate almost 360° relative to said center panel. 16. A display board, comprising: a substantially planar center panel having a front face, a rear face and a vertical fold or bend line extending between upper and lower edges of said front face that enables folding of said center panel about said fold or bend line;a substantially planar left side panel pivotally connected to a left edge of said center panel, said left side panel having a front face;a substantially planar right side panel pivotally connected to a right edge of said center panel, said right side panel having a front face;rotation means for enabling said left and right side panels to rotate relative to said center panel, said rotation means being arranged such that said left side panel is inwardly foldable relative to said center panel to enable said front face of said left side panel to face said front face of a first portion of said center panel on a first side of said fold or bend line and such that said right side panel is inwardly foldable relative to said center panel to enable said front face of said right side panel to face said front face of a second portion of said center panel on a second side of said fold or bend line; anda one-piece flap integrally connected to said upper edge of said center panel about a fold or bend line and spanning across said fold or bend line of said center panel such that said flap spans across portions of said center panel on both sides of said fold or bend line of said center panel,said flap including a fold or bend line aligning with said fold or bend line of said center panel and having a front face contiguous with said front face of said center panel,said flap being arranged to pivot rearward or forward to stabilize the display board when said left and right side panels are arranged relative to said center panel such that a plane of each of said left and right panels is at an acute angle relative to a plane of said center panel,said flap being further arranged relative to said center panel to provide the display board with a stable display state in which said front face of said center panel faces a forward direction, said front faces of said left and right side panels are arranged relative to said front face of said center panel such that a plane of each of said left and right panels is at an acute angle relative to a plane of said center panel and said flap is pivoted rearward or forward about said fold or bend line between said flap and said center panel such that a plane of said flap is at an acute angle relative to a plane of said center panel. 17. A display board, comprising: a substantially planar center panel including a fold or bend line which enables said center panel to be folded, said fold or bend line extending between lower and upper edges of said center panel;a substantially planar left side panel pivotally connected to a left edge of said center panel and having a width about ½ the width of said center panel such that said left side panel is foldable against said center panel;a substantially planar right side panel pivotally connected to a right edge of said center panel and having a width about ½ the width of said center panel such that said right side panel is foldable against said center panel; anda one-piece flap integrally connected to said upper edge of said center panel about a fold or bend line,said flap including a flap fold or bend line aligning with said fold or bend line of said center panel and having a front face contiguous with said front face of said center panel,said flap being arranged to pivot rearward or forward to stabilize the display board when said left and right side panels are arranged relative to said center panel such that a plane of each of said right and left side panels is at an acute angle to a plane of said center panel,said flap having a first portion on one side of said flap fold or bend line and a second portion on the other side of said flap fold or bend line such that said flap spans across portions of said center panel on both sides of said fold or bend line of said center panel,said flap being arranged relative to said center panel to provide the display board with a stable display state in which said front face of said center panel faces a forward direction, said front faces of said left and right side panels are arranged relative to said front face of said center panel such that a plane of each of said left and right panels is at an acute angle relative to a plane of said center panel and said flap is pivoted rearward or forward about said fold or bend line between said flap and said center panel such that a plane of said flap is at an acute angle relative to a plane of said center panel. 18. A display board, comprising: a substantially planar center panel having a front face, a rear face and a vertical fold or bend line extending between upper and lower edges of said front face that enables folding of said center panel about said fold or bend line;a substantially planar left side panel pivotally connected to a left edge of said center panel, said left side panel having a front face;a substantially planar right side panel pivotally connected to a right edge of said center panel, said right side panel having a front face;rotation means for enabling said left and right side panels to rotate relative to said center panel, said rotation means being arranged such that said left side panel is inwardly foldable relative to said center panel to enable said front face of said left side panel to face said front face of a first portion of said center panel on a first side of said fold or bend line and such that said right side panel is inwardly foldable relative to said center panel to enable said front face of said right side panel to face said front face of a second portion of said center panel on a second side of said fold or bend line; anda one-piece flap integrally connected to said upper edge of said center panel about a fold or bend line and spanning across said fold or bend line of said center panel such that said flap spans across portions of said center panel on both sides of said fold or bend line of said center panel,said flap including a fold or bend line aligning with said fold or bend line of said center panel and having a front face contiguous with said front face of said center panel,said flap being arranged to pivot rearward or forward to stabilize the display board when said left and right side panels are arranged at an acute angle relative to said center panel,said flap being arranged relative to said center panel to provide the display board with a stable display state in which said front face of said center panel faces a forward direction, said front faces of said left and right side panels are arranged at an acute angle to said front face of said center panel and said flap is pivoted rearward or forward about said fold or bend line between said flap and said center panel to be at an acute angle to said rear face or said front face of said center panel. 19. A display board, comprising: a substantially planar center panel including a fold or bend line in an approximate middle region which enables said center to be folded, said fold or bend line extending between lower and upper edges of said center panel;a substantially planar left side panel pivotally connected to a left edge of said center panel and having a width about the width of said center panel such that said left side panel is foldable against said center panel;a substantially planar right side panel pivotally connected to a right edge of said center panel and having a width about the width of said center panel such that said right side panel is foldable against said center panel; anda one-piece flap integrally connected to said upper edge of said center panel about a fold or bend line,said flap including a flap fold or bend line aligning with said fold or bend line of said center panel and having a front face contiguous with said front face of said center panel,said flap being arranged to pivot rearward or forward to stabilize the display board when said left and right side panels are arranged at an acute angle relative to said center panel,said flap being arranged to pivot rearward or forward to stabilize the display board when said left and right side panels are arranged at an acute angle relative to said center panel,said flap being arranged relative to said center panel to provide the display board with a stable display state in which said front face of said center panel faces a forward direction, said front faces of said left and right side panels are arranged at an angle to said front face of said center panel and said flap is pivoted rearward or forward about said fold or bend line between said flap and said center panel to be at an acute angle to said rear face or said front face of said center panel, said flap having a first portion on one side of said flap fold or bend line and a second portion on the other side of said flap fold or bend line such that said flap spans across portions of said center panel on both sides of said fold or bend line of said center panel,said flap being arranged relative to said center panel to provide the display board with a stable display state in which said front face of said center panel faces a forward direction, said front faces of said left and right side panels are arranged at an acute angle to said front face of said center paned and said flap is pivoted rearward or forward about said fold or bend line between said flap and said center panel to be at an acute angle to a rear face or front face of said center panel.