Method for creating a 3d multiview display with elastic optical layer buckling

Patent metadata

Field	Value
Publication number	US-2022357591-A1
Application number	US-202017638520-A
Country	US
Kind code	A1
Filing date	Aug 24, 2020
Priority date	Aug 30, 2019
Publication date	Nov 10, 2022
Grant date	—

Abstract

Systems and methods are described for providing a display. In some embodiments, a display device includes a light-emitting layer with an addressable array of light-emitting elements such as OLEDs. A flexible optical layer overlays the light-emitting layer. The flexible optical layer has a plurality of lens regions, where optical powers of the lens regions change in response to changing levels of tensile or compressive force on the flexible optical layer. When no force is applied, the lens regions may have no optical power, and the display may operate as a 2D display. When force is applied (e.g. by bending the display), the lens regions may operate as cylindrical lenses in a lenticular array, and the display may be operated as a 3D multiview display.

First claim

1 . A display device comprising:
a bendable light-emitting layer comprising an addressable array of light-emitting elements; and a deformable optical layer having a plurality of lens regions, the deformable optical layer overlaying the light-emitting layer and being bendable along with the light-emitting layer; wherein the deformable optical layer is configured such that optical powers of the lens regions change in response to bending of the optical layer.

2 . The display device of claim 1 , wherein the deformable optical layer is configured such that, while the deformable optical layer is in at least a first curved configuration, the lens regions form a lenticular array of cylindrical lenses.

3 . The display device of claim 1 , wherein the deformable optical layer is configured such that, while the deformable optical layer is substantially flat, the optical powers of the lens regions are substantially zero.

4 . The display device of claim 1 , further comprising a plurality of baffles provided between adjacent lens regions, wherein the baffles are more rigid than the deformable optical layer.

5 . The display device of claim 4 , wherein the baffles are transparent.

6 . The display device of claim 1 , wherein the display device is operable as a 2D display in a substantially flat configuration and as a 3D display in at least a first curved configuration.

7 . The display device of claim 1 , further comprising control circuitry operative to control the light-emitting elements to display a 2D image or a 3D image according to a selected display mode.

8 . The display device of claim 7 , further comprising a sensor operative to determine a degree of bending of at least one of the deformable optical layer and the light-emitting layer, wherein the control circuitry is operative to select a 2D display mode or a 3D display mode based the degree of bending.

9 . The display device of claim 7 , wherein the control circuitry is operative to display an image in a privacy mode while the display device is in at least a second curved configuration.

10 . A method of operating a display device comprising:
determining a degree of bending of the display device; selecting a display mode based on the degree of bending, wherein the selection is made from among a group of display modes including at least a 2D display mode and a 3D display mode; and operating the display device according to the selected display mode.

11 . The method of claim 10 , wherein selecting a display mode comprises selecting the 2D display mode in response to a determination that the display device is in a substantially flat configuration.

12 . The method of claim 10 , wherein selecting a display mode comprises selecting the 3D display mode in response to a determination that the display device is in a first curved configuration.

13 . The method of claim 10 , wherein the group of display modes further includes a privacy mode, and wherein selecting a display mode comprises selecting the privacy mode in response to a determination that the display device is in a second curved configuration.

14 . The method of claim 10 , wherein the display device includes a deformable optical layer having a plurality of lens regions, wherein the deformable optical layer is configured such that optical powers of the lens regions change in response to bending of the optical layer.

15 . The method of claim 10 , wherein determining a degree of bending of the display device comprises operating a bending sensor.

Assignees

• Pcms Holdings Inc

Inventors

• Makinen Jukka-Tapani

Classifications

• H04N13/305

  using lenticular lenses, e.g. arrangements of cylindrical lenses · CPC title

• H04N13/356

  having separate monoscopic and stereoscopic modes · CPC title

• H04N13/322

  using varifocal lenses or mirrors · CPC title

• G02B30/28 Primary

  involving active lenticular arrays · CPC title

• G02B30/29 Primary

  characterised by the geometry of the lenticular array, e.g. slanted arrays, irregular arrays or arrays of varying shape or size · CPC title