Seamless foldable display device

• US 7,834,537 B2
• Filed: 10/04/2006
• Issued: 11/16/2010
• Est. Priority Date: 05/09/2006
• Status: Expired due to Fees

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Jung-Woo, Kee, In-Seo, Shim, Hong-shik
• Primary Examiner(s): Roy; Sikha
• Assistant Examiner(s): GREEN, TRACIE Y
• Application Number:
  US11/538,621
• Publication Number:
  US 20070262916A1
• Time in Patent Office: 1,504 Days
• Field of Search: None
• US Class Current: 313/500
• CPC Class Codes: G02F 1/13336 Combining plural substrates to produce large-area displays, e.g. tiled displays
• CPC Class Codes: G02F 1/134309 characterised by their geometrical arrangement
• CPC Class Codes: H10K 59/18 Tiled displays

Abstract

A foldable display device is designed so that a junction between at least two display panels connected to each other is not visibly seen. The display device displays an image on a plurality of display panels that are connected together. Pixels near the junction between every two adjacent display panels of the at least two display panels are smaller and have a higher brightness than the other pixels.

Claims

1. A display device for displaying an image on a plurality of display panels connected together, wherein pixels near a junction between every two adjacent display panels of the plurality of display panels are smaller than the other pixels and the smaller pixels near the junction between the every two adjacent display panels have a higher brightness than the other pixels,

wherein pixels in at least two adjacent pixel columns are smaller than remaining pixels and pixels in the at least two pixel columns gradually increase in size in a direction going from the junction of the every two adjacent display panels to each of the respective center portions of the every two adjacent display panels.

2. The display device of claim 1, wherein a width of a pixel column is uniform throughout the plurality of display panels, and

wherein distances between the smaller pixels and the other pixels adjacent thereto are adjusted such that a distance between centers of the smaller pixels and a center of their respective pixel column increases with proximity to the junction.

3. The display device of claim 1, wherein an intensity of light emitted from one of the pixels near the junction of the every two adjacent display panels is equal to an intensity of light emitted from one of the other pixels.

4. The display device of claim 1, wherein two facing pixels on both sides of the junction between the every two adjacent display panels serve as a single pixel.

5. The display device of claim 4, wherein the sum of intensities of light emitted from the two pixels on both sides of the junction is equal to an intensity of light emitted from one of the other pixels.

6. The display device of claim 1, wherein the display panels are emissive display panels.

7. The display device of claim 6, wherein the display panels are one of an organic electroluminescent light emitting device (OLED), a field emission display (FED), a plasma display panel (PDP) and an inorganic electroluminsecence (EL) device.

8. The display device of claim 1, wherein an array of pixels that display a red color (R), a green color (G), and a blue color (B) is repeated in a direction substantially parallel to a lengthwise direction of the junction.

9. The display device of claim 1, wherein the pixels near the junction between every two adjacent display panels are arranged such that a distance between the pixels near the junction and the other pixels is larger than a distance between the other pixels.

10. The display device of claim 1, wherein a width between opposite ends of two pixels near the junction between every two adjacent display panels is equal to a width of the other pixels.

11. The display device of claim 1, wherein a distance between the pixels on both sides of the junction between the every two adjacent display panels is in a range of about 0.1 mm to about 1 mm.