Flexible display apparatus and methods

Patent metadata

Field	Value
Publication number	US-9831223-B2
Application number	US-201715497330-A
Country	US
Kind code	B2
Filing date	Apr 26, 2017
Priority date	Jan 4, 2008
Publication date	Nov 28, 2017
Grant date	Nov 28, 2017

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 sub-pixel gaps and to provide a desired bend radius of the display. The flexible substrate may include light manipulators, such as filters, light converters 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.

First claim

What is claimed is:

1. A flexible display comprising:
(a) a plurality of light emitting rigid chixels affixed to a flexible substrate, said plurality of light emitting rigid chixels collectively providing a visible display, said flexible display having both vertical and horizontal directions defined in the plane of said visible display;
(b) each of said plurality of light emitting rigid chixels comprising:
i. a plurality of light emitting pixels affixed to a rigid substrate, said rigid substrate having a non-functional edge and an adjacent region devoid of any conductor;
ii. said plurality of light emitting pixels arranged upon said rigid substrate to provide a spaced array of pixels providing a plurality of substantially equal first pixel gaps between adjacent light emitting pixels in a vertical direction;
iii. said plurality of light emitting pixels disposed in a linear arrangement with respect to each other when viewed on said visible display, the direction of said linear arrangement being parallel to said vertical direction;
iv. wherein one of said plurality of light emitting pixels is a top pixel disposed at a terminus of said linear arrangement, and wherein one of said plurality of light emitting pixels is a bottom pixel disposed at another terminus of said linear arrangement;

(c) said plurality of light emitting rigid chixels arranged upon said flexible substrate to provide a spaced array of chixels, said spaced array of chixels providing a plurality of substantially equal second pixel gaps disposed across said non-functional edges between the top pixel of each adjacent light emitting chixel in both said horizontal and said vertical directions;
(d) said spaced array of chixels further providing a plurality of substantially equal third pixel gaps disposed across said non-functional edges between the bottom pixel of each adjacent light emitting chixel in both said horizontal and said vertical directions;
(e) further characterized in that each of said plurality of second gaps is substantially equal to each of said plurality of third pixel gaps across said flexible display.

2. The flexible display of claim 1 , further characterized in that each of said plurality of light emitting rigid chixels is disposed upon said flexible substrate such that the non-functional edge of any light emitting rigid chixel does not overlap the non-functional edge of any adjacent light emitting rigid chixel.

3. The flexible display of claim 1 , further characterized in that the rigid substrate of each of said plurality of light emitting rigid chixels is substantially transparent and at least a portion of the light emitted by said light emitting rigid chixel is transmitted through said rigid substrate.

4. The flexible display of claim 1 , further characterized in that a portion of said plurality of light emitting rigid chixels is disposed upon said flexible substrate such that the non-functional edge of at least one light emitting rigid chixel abuts the non-functional edge of an adjacent light emitting rigid chixel.

5. The flexible display of claim 1 , further characterized in that said region devoid of any conductor filters at least a portion of the light emitted by the light emitting rigid chixel that is directed toward said second pixel gap.

6. The flexible display of claim 5 , further characterized in that said region devoid of any conductor is substantially opaque to at least a portion of the light emitted by the light emitting rigid chixel that is directed toward said second pixel gap.

7. The flexible display of claim 1 , in which the light emitting rigid chixel further comprises: at least one light emitting pixel that produces a substantially white light emission.

8. The flexible display of claim 1 , in which the light emitting rigid chixel further comprises: at least one light emitting pixel that produces a substantially blue light emission.

9. The flexible display of claim 8 , in which the light emitting rigid chixel further comprises:
(a) at least one light emitting pixel that produces a substantially green light emission; and,
(b) at least one light emitting pixel that produces a substantially red light emission.

10. A method of constructing a flexible display module, the method comprising the steps of:
(a) providing a plurality of light emitting rigid chixels, each chixel comprising:
i. a plurality of light emitting pixels affixed to a rigid substrate, each of the plurality having a non-functional edge and an adjacent region devoid of any conductor;
ii. the plurality of light emitting pixels arranged upon said rigid substrate to provide a spaced array of pixels providing a plurality of substantially equal first pixel gaps between adjacent light emitting pixels in a vertical direction;
iii. said plurality of light emitting pixels disposed in a linear arrangement with respect to each other when viewed on said visible display, the direction of said linear arrangement being parallel to said vertical direction;
iv. wherein one of said plurality of light emitting pixels is a top pixel disposed at a terminus of said linear arrangement, and wherein one of said plurality of light emitting pixels is a bottom pixel disposed at another terminus of said linear arrangement;

(b) affixing said plurality of light emitting rigid chixels to a flexible substrate in an arrangement that collectively provides a visible display having both horizontal and vertical directions in the plane of said visible display;
(c) spacing said plurality of light emitting rigid chixels upon said flexible substrate to provide a second pixel gap disposed across said non-functional edges between the top pixel of each adjacent light emitting rigid chixels in both said horizontal and vertical directions;
(d) spacing said plurality of light emitting rigid chixels upon said flexible substrate to provide a third pixel gap disposed across said non-functional edges between the bottom pixel of each adjacent light emitting rigid chixels in both said horizontal and vertical directions;
(e) said second pixel gap being substantially equal to said third pixel gap.

11. The method of claim 10 additionally comprising the steps of:
(a) disposing each of said plurality of light emitting rigid chixels upon said flexible substrate such that the non-functional edge of any light emitting rigid chixel does not overlap the non-functional edge of any adjacent light emitting rigid chixel.

12. The method of claim 10 additionally comprising the steps of:
(a) providing a substantially transparent rigid substrate for each of said plurality of light emitting rigid chixels in which at least a portion of the light emitted by said light emitting rigid chixel is transmitted through said rigid substrate.

13. The method of claim 10 additionally comprising the steps of:
(a) disposing at least a portion of said plurality of light emitting rigid chixels upon said flexible substrate such that the non-functional edge of at least one light emitting rigid chixel abuts the non-functional edge of an adjacent light emitting rigid chixel.

14. The method of claim 10 additionally comprising the steps of:
(a) filtering in said region devoid of any conductor at least a portion of the light emitted by the light emitting rigid chixel that is directed toward said second pixel gap.

15. The method of claim 10 additionally comprising the steps of:
(a) filtering in said region devoid of any conductor substantially all of the light emitted by the light emitting rigid chixel that is directed toward said second pixel gap.

16. The method of claim 10 , the light emitting rigid

Assignees

• Nanolumens Acquisition Inc

Inventors

• Cope Richard C

Classifications

• H10W90/00

  Package configurations · CPC title

• H10W70/688

  Flexible insulating substrates · CPC title

• G09G2300/0452

  Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components · CPC title

• G06F3/1438

  using more than one graphics controller · CPC title

• B05D3/0493

  using vacuum · CPC title