COLOR FILTER TO PREVENT COLOR ERRORS IN A ROLL UP DISPLAY

• US 20130301154A1
• Filed: 04/30/2013
• Published: 11/14/2013
• Est. Priority Date: 11/29/2005
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Creator Technology BV
• Inventors: HUITEMA, Hjalmar Edzer Ayco, van LIESHOUT, Petrus Johannes Gerardus
• Application Number:
  US13/874,447
• Publication Number:
  US 20130301154A1
• Time in Patent Office: Days
• US Class Current: 359/891
• CPC Class Codes: G02B 5/20 Filters polarising elements G02B5/30
• CPC Class Codes: G02B 5/201 in the form of arrays
• CPC Class Codes: G02F 1/133305 Flexible substrates, e.g. plastics, organic film
• CPC Class Codes: G02F 1/133514 Colour filters
• CPC Class Codes: G02F 1/133516 Methods for their manufacture, e.g. printing, electro-deposition or photolithography
• CPC Class Codes: G02F 1/167 by electrophoresis
• CPC Class Codes: G02F 1/1677 Structural association of cells with optical devices, e.g. reflectors or illuminating devices

Abstract

A conformable, flexible or roll up display includes a matrix display layer including lines of sub-pixels. Each line has an associated color assigned to the line, and each line extends along a roll up or bend direction. A display effect layer is formed on the matrix layer. A color filter layer includes striped color filters which extend in the roll up or bend direction. The striped color filters each include a filter color corresponding with the lines of sub-pixels in the matrix layer to address misalignment and color errors due to bending or rolling up the display. Methods for fabricating flexible displays are also disclosed.

Claims

1-26. -26. (canceled)

27. A flexible, rollable or conformable display, comprising:

a matrix display layer including lines of sub-pixels, each line having an associated color assigned to the line, each line extending along a roll up or bend direction;

a display effect layer formed on the matrix layer;

a color filter layer including striped color filters which extend in the roll up or bend direction, the striped color filters each include a filter color corresponding with the lines of sub-pixels in the matrix layer to address misalignment and color errors due to bending or rolling up the display; and

a fixing material applied at an end portion of the display to couple and fix the display effect layer to the color filter layer.

28. The display as recited in claim 27, wherein the striped color filters are manufactured separately from the display and are attached to the display by an adhesive.

29. The display as recited in claim 27, wherein the striped color filters are formed by deposition and patterning using photolithography.

30. The display as recited in claim 27, further comprising a spool configured to roll up the display.

31. The display as recited in claim 27, wherein the fixing material includes a stripe applied perpendicularly to the roll up or bend direction at an end portion of the color filter layer.

32. The display as recited in claim 27, wherein the fixing material includes a plurality of spots applied at end portions of the color filter layer.

33. A flexible, rollable or conformable display, comprising:

a matrix display layer including lines of sub-pixels, each line having an associated color assigned to the line, each line extending along a roll up or bend direction, the lines being arranged to include a single color component;

a display effect layer formed on the matrix layer;

a color filter layer formed on the display effect layer and including striped color filters, each striped color filter being associated with the single color component of a corresponding line of sub-pixels and the striped color filter formed to cover the line of sub-pixels, the striped color filters extending in the roll up or bend direction to address misalignment and color errors due to bending or rolling up the display; and

a fixing material applied at an end portion of the display to couple and fix the display effect layer to the color filter layer.

34. The display as recited in claim 33, further comprising a spool configured to roll up the display.

35. The display as recited in claim 33, wherein the fixing material includes a stripe applied perpendicularly to the roll up or bend direction at an end portion of the color filter layer.

36. The display as recited in claim 33, wherein the fixing material includes a plurality of spots applied at end portions of the color filter layer.

37. A method for fabricating a flexible display device, comprising:

forming a matrix layer having sub-pixels arranged in lines such that each sub-pixel in a line provides illumination for a given color component;

forming a display effect layer on the matrix layer; and

on the display effect layer, forming color filter stripes longitudinally in a roll up or bend direction, each stripe corresponding to and covering a line of sub-pixels to reduce misalignment and color errors due to bending; and

securing the color filter stripes with a fixing material applied at an end portion of the display.

38. The method as recited in claim 37, wherein forming color filter stripes includes depositing and patterning the color filter stripes using photolithography.

39. The method as recited in claim 37, wherein forming the color filter stripes includes ink jet printing the color filter stripes.

40. The method as recited in claim 37, wherein forming the color filter stripes includes silk screening/shadow masking to form the color filter stripes.

41. The method as recited in claim 37, wherein forming the color filter stripes includes manufacturing the color filter stripes separately from the display and attaching the color filter stripes to the display by an adhesive.

42. The method as recited in claim 37, wherein the fixing material includes a stripe applied perpendicularly to the roll up direction at an end portion of the color filter stripes.

43. The method as recited in claim 37, wherein the fixing material includes a plurality of spots applied at end portions of the color filter stripes.