Flexible display

• US 9,013,367 B2
• Filed: 01/02/2009
• Issued: 04/21/2015
• Est. Priority Date: 01/04/2008
• Status: Active Grant

• Current Assignee: Nanolumens Aquisition, Inc. (NanoLumens, Inc.)
• Original Assignee: Nanolumens Aquisition, Inc. (NanoLumens, Inc.)
• Inventors: Cope, Richard C.
• Primary Examiner(s): Sniezek, Andrew L
• Application Number:
  US12/348,158
• Publication Number:
  US 20090219225A1
• Time in Patent Office: 2,300 Days
• Field of Search: None
• US Class Current: 345/1.3
• CPC Class Codes: B05D 2252/02 of indefinite length
• CPC Class Codes: B05D 3/0493 using vacuum
• CPC Class Codes: C23C 14/562 for coating elongated substrates
• CPC Class Codes: G06F 3/1438 using more than one graphics controller
• CPC Class Codes: G06F 3/1446 display composed of modules, e.g. video walls
• CPC Class Codes: G09F 9/30 in which the desired character or characters are formed by combining individual elements panels comprising a number of electrodes in a single cell controlling light arriving from an independent light source, e.g. electro-optical or magneto-optical cell, G02F1/00
• CPC Class Codes: G09F 9/301 flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
• CPC Class Codes: G09F 9/33 being semiconductor devices, e.g. diodes
• 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 2300/04 Structural and physical details of display devices
• CPC Class Codes: G09G 2300/0426 Layout of electrodes and connections
• CPC Class Codes: G09G 2300/0452 Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
• CPC Class Codes: G09G 2320/0626 for control of overall brightness
• CPC Class Codes: G09G 2380/02 Flexible displays
• CPC Class Codes: G09G 2380/06 Remotely controlled electronic signs other than labels
• CPC Class Codes: G09G 3/035 for flexible display surfaces
• CPC Class Codes: G09G 3/20 for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
• CPC Class Codes: G09G 3/2088 with use of a plurality of processors, each processor controlling a number of individual elements of the matrix
• CPC Class Codes: G09G 3/32 semiconductive, e.g. using light-emitting diodes [LED]
• CPC Class Codes: H01L 23/4985 Flexible insulating substrates H01L23/49572 and H01L23/49855 take precedence
• CPC Class Codes: H01L 25/0655 : the devices being arranged next to each other
• CPC Class Codes: H01L 25/0753 : the devices being arranged next to each other
• CPC Class Codes: H01L 27/153 : in a repetitive configuration, e.g. LED bars
• CPC Class Codes: H01L 2924/00 : Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/0002 : Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
• CPC Class Codes: H01L 2933/0033 : relating to semiconductor body packages
• CPC Class Codes: H01L 31/03923 : including AIBIIICVI compound materials, e.g. CIS, CIGS
• CPC Class Codes: H01L 31/206 : Particular processes or apparatus for continuous treatment of the devices, e.g. roll-to roll processes, multi-chamber deposition
• CPC Class Codes: H01L 33/20 : with a particular shape, e.g. curved or truncated substrate
• CPC Class Codes: H01L 33/32 : containing nitrogen
• CPC Class Codes: H01L 33/48 : characterised by the semiconductor body packages
• CPC Class Codes: H01L 33/483 : Containers
• CPC Class Codes: H10K 2102/311 : Flexible OLED
• CPC Class Codes: Y02E 10/541 : CuInSe2 material PV cells
• CPC Class Codes: Y02P 70/50 : Manufacturing or production processes characterised by the final manufactured product

Abstract

A flexible display includes a plurality of pixel chips, chixels, provided on a flexible substrate. The chixels and the light emitters thereon may be shaped, sized and arranged to minimize chixel, pixel, and subpixel gaps and to provide a desired bend radius of the display. The flexible substrate may include light manipulators, such as filters, light convertors and the like to manipulate the light emitted from light emitters of the chixels. The light manipulators may be arranged to minimize chixel gaps between adjacent chixels.

Claims

1. A flexible display comprising:

a flexible substrate;

a plurality of rigid LED pixel-containing chixels carried by said flexible substrate;

each of said plurality of rigid LED pixel-containing chixels affixed to said flexible substrate;

each of said plurality of rigid LED pixel-containing chixels comprising an array of LED pixels and having a non-functional edge and an adjacent region devoid of any conductor;

a first pixel gap is provided between adjacent LED pixels on each of the plurality of pixel-containing chixels and a second pixel gap disposed across said non-functional edges is provided between adjacent LED pixels on adjacent pixel-containing chixels in a vertical and horizontal direction, said first pixel gap being substantially the same throughout a respective of a pixel containing chixels among adjacent LED pixels in both a vertical and horizontal direction;

wherein each of the plurality of pixel-containing chixels are positioned and arranged such that the first pixel gap and the second pixel gap are substantially the same and uniform across the flexible display in both a horizontal and vertical direction;

further characterized in that said first pixel gap is substantially equal to said second pixel gap;

a front film including a diffusion medium;

said plurality of chixels carried by said front film and wherein said non-functional edge enables for a small profile to be obtained between the respective chixels.