Picture display device

• US 5,345,249 A
• Filed: 09/02/1993
• Issued: 09/06/1994
• Est. Priority Date: 09/03/1991
• Status: Expired due to Fees

• Current Assignee: US Philips Corporation (Koninklijke Philips N.V.)
• Original Assignee: US Philips Corporation (Koninklijke Philips N.V.)
• Inventors: Biemans, Anthony M. M.
• Primary Examiner(s): HJERPE, RICHARD A
• Application Number:
  US08/115,729
• Time in Patent Office: 369 Days
• Field of Search: 345/1, 345/189, 345/204, 345/903, 348/383
• US Class Current: 345/1.1
• CPC Class Codes: G06F 3/1446 display composed of modules, e.g. video walls
• CPC Class Codes: G09G 2300/026 Video wall, i.e. juxtaposition of a plurality of screens to create a display screen of bigger dimensions
• CPC Class Codes: G09G 2310/0283 Arrangement of drivers for different directions of scanning
• CPC Class Codes: H04N 9/12 Picture reproducers H04N9/11 takes precedence

Abstract

In a picture display device having a plurality of adjacent display sections, vertically adjacent display sections are scanned in mutually opposite directions, so that at the transition between first and second rows of display sections, the perception of old picture information nicely fits in with the perception of old picture information, while at the transition between the second and third rows of display sections, the perception of new picture information nicely fits in with the perception of new picture information.

Claims

1. A picture display system comprising picture memory means having read control means, and a plurality of adjacent display apparatuses for displaying, respectively, adjacent sections of a picture stored in said picture memory means, each display apparatus having a separate scanning device, characterized in that said read control means include means for reading first sections of said picture from said picture memory means in a first direction and adjacent sections of said picture from said picture memory means in an opposite direction, while said picture display system further comprises means for controlling said separate scanning devices to scan display apparatuses arranged for displaying said first sections in said first direction and to scan display apparatuses arranged for displaying said adjacent sections in said opposite direction.

2. A picture display system as claimed in claim 1, characterized in that said plurality of adjacent display apparatuses are arranged in an array having n rows and m columns, where n and m are integers.

3. A picture display system as claimed in claim 2, characterized in that n equals m.

4. A picture display system as claimed in claim 2, characterized in that n is greater than 1 and said first and adjacent sections of said picture are vertically displaced.

5. A picture display system as claimed in claim 4, characterized in that said first and opposite directions are vertically oriented.

6. A picture display system as claimed in claim 2, characterized in that m is greater than 1 and said first and adjacent sections of said picture are horizontally displaced.

7. A picture display system as claimed in claim 6, characterized in that said first and opposite directions are horizontally oriented.

8. A picture display system as claimed in claim 1, characterized in that said picture memory means comprises a first and a second picture memory for each of said plurality of adjacent display apparatuses, and said read control means comprises reading means for each of said plurality of adjacent display apparatuses.