Rear projection screen multi-panel connector assembly

• US 5,103,339 A
• Filed: 05/31/1991
• Issued: 04/07/1992
• Est. Priority Date: 05/31/1991
• Status: Expired due to Term

• Current Assignee: Draper Incorporated (Denise Aversano,)
• Original Assignee: Draper Shade and Screen Company
• Inventors: Broome, Michael D.
• Primary Examiner(s): WINTERCORN, RICHARD
• Application Number:
  US07/708,518
• Time in Patent Office: 312 Days
• Field of Search: 359/443, 359/449, 359/450, 359/453, 359/456, 359/459, 359/460, 52/281, 52/395
• US Class Current: 359/443
• CPC Class Codes: G03B 21/10 Projectors with built-in or built-on screen
• CPC Class Codes: G03B 21/62 Translucent screens
• CPC Class Codes: H04N 9/3147 Multi-projection systems displays in general H04N9/12; video walls G06F3/1446, G09G2300/026

Abstract

The invention comprises a multiple rear projection screen assembly which includes a plurality of rear projection screens and framing members between adjacent screens. Each screen has edges and a front and rear side, and are positioned in an adjacent relationship to form a contiguous viewing area such that each screen has at least one edge abutting the edge of an adjacent screen. Framing members are disposed along abutting edges of the screens with at least one of the framing members including a front bracket located along the front side of the abutting edges of two screens, and a rear bracket located along the rear side of the abutting edges of the two screens. The front bracket is spaced from the rear bracket and a fastener passes between the abutting edges of the screens. The fastener fastens the front bracket to the rear bracket such that the abutting edges of rear projection screens are simultaneously compressed between the front and rear brackets.

Claims

1. A multiple rear projection screen assembly comprising:

a plurality of rear projection screens, each screen having edges and a front and rear side, the screens being positioned in an adjacent relationship to form a contiguous viewing area such that each screen has at least one edge abutting the edge of an adjacent screen,

a framing system comprising framing members disposed along abutting edges of the screens, at least one of the framing members comprising

a front bracket located along the front side of the abutting edges of two screens;

a rear bracket separate from the front bracket, the rear bracket located along the rear side of the abutting edges of the two screens;

the front bracket being spaced from the rear bracket; and

fastening means passing between the abutting edges of the screens, the fastening means fastening the front bracket to the rear bracket such that the abutting edges of rear projection screens may be simultaneously compressed between the front and rear brackets.

2. The multiple rear projection screen assembly of claim 1 wherein the fastening means provides adjustable compression between the front and rear brackets.

3. The multiple rear projection screen assembly of claim 1 wherein the front bracket includes a front surface and wherein the fastening means is flush with the front surface of the front bracket.

4. The multiple rear projection screen assembly of claim 1 wherein the front surfaces of at least two adjacent rear projection screens are not coplanar.

5. The multiple rear projection screen assembly of claim 1 wherein the framing members along abutting screen edges comprise backwardly extending light-blocking fins.

6. The multiple rear projection screen frame assembly of claim 1 wherein the rear bracket includes a recessed channel for receiving multiple fastener means, and further comprising multiple fastening means passing between the abutting edges of the screens, the fastening means fastening the front bracket to the rear bracket such that the abutting edges of rear projection screens may be simultaneously compressed between the front and rear brackets.

7. The multiple rear projection screen assembly of claim 1 wherein the framing system comprises horizontal members and vertical members, and wherein each vertical member comprises

a front bracket located along the front side of the abutting edges of two screens;

a rear bracket separate from the front bracket, the rear bracket located along the rear side of the abutting edges of the two screens;

the front bracket being spaced from the rear bracket; and

fastening means passing between the abutting edges of the screens, the fastening means fastening the front bracket to the rear bracket such that the abutting edges of rear projection screens may be simultaneously compressed between the front and rear brackets.

8. A multiple rear projection screen frame assembly for joining the adjacent edges of rear projection screens comprising:

a front bracket having a front and rear surfaces,

a rear bracket having at least one front surface;

the front bracket rear surface being spaced from the rear bracket front surface;

fastener means for connecting the front bracket to the rear bracket such that abutting edges of rear projection screens may be simultaneously compressed between the front and rear brackets.

9. The multiple rear projection screen frame assembly of claim 8 wherein the fastener means provides adjustable compression between the front and rear brackets.

10. The multiple rear projection screen frame assembly of claim 8 wherein the fastener means is flush with the front surface of the front bracket.

11. The multiple rear projection screen frame assembly of claim 8 wherein the front surface of the rear bracket includes a recessed channel for receiving multiple fastener means.

12. The multiple rear projection screen frame assembly of claim 8 wherein the front surface of the rear bracket includes a screen engaging surface, the screen engaging surface being forwardly tapered from its median.

13. The multiple rear projection screen frame assembly of claim 8 wherein the front bracket comprises a medial score on its front surface.

14. A multiple rear projection screen frame member for joining the adjacent edges of rear projection screens comprising:

a longitudinally extending body having first and second rear projection screen engaging surfaces;

a longitudinally extending channel within the body, the channel opening to the exterior of the body between the first and second rear projection screen engaging surfaces,

such that said frame member is adapted to receive a fastener in the channel at any point along its longitudinal length.

15. The multiple rear projection screen frame member of claim 14, wherein said member is formed by an extrusion process.

16. The multiple rear projection screen frame member of claim 14 wherein the channel is formed to receive a screw.

17. The multiple rear projection screen frame member of claim 14 wherein the channel comprises two parallel longitudinally extending sides and a tapered bottom.

18. The multiple rear projection screen frame member of claim 14 wherein the first and second screen engaging surfaces are forwardly tapered from the longitudinally extending channel.