Smart contact lenses for augmented reality and methods of manufacturing and operating the same

Patent metadata

Field	Value
Publication number	US-10359648-B2
Application number	US-201514644488-A
Country	US
Kind code	B2
Filing date	Mar 11, 2015
Priority date	Sep 26, 2014
Publication date	Jul 23, 2019
Grant date	Jul 23, 2019

Abstract

Example embodiments disclose a smart contact lens for augmented reality and methods of manufacturing and operating the smart contact lens. The smart contact lens includes a first contact lens, a display unit in a center region of the first contact lens, a peripheral device on the first contact lens and around the display unit, the peripheral device being connected to the display unit, and a passivation layer covering the display unit and the peripheral device. The method of manufacturing the smart contact lens includes forming a display unit; mounting the display unit in a center region of a first contact lens, forming a peripheral device on the first contact lens, around the display unit and in connection with the display unit, and forming a passivation layer to cover the display unit and the peripheral device.

First claim

What is claimed is:

1. A smart contact lens comprising:
a first contact lens;
a display unit in a center region of the first contact lens;
a peripheral device on the first contact lens and around the display unit, the peripheral device being connected to the display unit;
a passivation layer covering the display unit and the peripheral device; and
a material layer that covers the passivation layer and makes hermetic contact with the first contact lens around the passivation layer; and
wiring around the display unit, the peripheral device comprising the wiring, the wiring having a circular shape and connecting the display unit to components of the peripheral device that are around the wiring, the wiring being between the display unit and the components of the peripheral device,
wherein the material layer covers only a front surface of the first contact lens in the first contact lens, the first contact lens includes a groove in the center region of the first contact lens, the display unit is in the groove and a size of the groove corresponds to a size of the display unit.

2. The smart contact lens of claim 1 , further comprising:
a second contact lens covering the passivation layer.

3. The smart contact lens of claim 1 , wherein the display unit comprises:
a transparent substrate layer;
a switch array layer on the transparent substrate layer;
a light emission layer on the switch array layer; and
an electrode layer on the light emission layer.

4. The smart contact lens of claim 3 , wherein the transparent substrate layer comprises:
a microlens array including a plurality of microlenses, a distribution density of the plurality of microlenses being varied in the microlens array.

5. The smart contact lens of claim 3 , wherein the light emission layer comprises:
a light emission device array having a plurality of light emission devices, a distribution density of the plurality of light emission devices being varied in the light emission device array.

6. The smart contact lens of claim 5 , wherein the distribution density is highest in a center region of the light emission device array and decreases in a direction away from a center of the light emission device array.

7. The smart contact lens of claim 5 , wherein the transparent substrate layer comprises:
a microlens array including a plurality of microlenses, a distribution density of the plurality of microlenses being varied in the microlens array, the plurality of light emission devices correspond to the plurality of microlenses.

8. The smart contact lens of claim 7 , wherein the electrode layer includes first and second electrodes, the first and second electrodes being between 5% to about 15% of the electrode layer.

9. The smart contact lens of claim 1 , wherein the components of the peripheral device comprise:
an antenna;
a capacitor configured to supply power to the display unit and a portion of the peripheral device;
a control unit configured to control operations of the display unit and the peripheral device;
a motion sensor configured to detect movement of the smart contact lens; and
a thin-film camera.

10. A method of manufacturing a smart contact lens, the method comprising:
forming a display unit;
mounting the display unit in a center region of a first contact lens, the mounting including,
forming a groove in the center region of the first contact lens, and
disposing the display unit in the groove, a size of the groove corresponding to a size of the display unit;

forming a peripheral device on the first contact lens, around the display unit and in connection with the display unit, the forming the peripheral device including,
forming wiring around the display unit, the wiring having a circular shape and connecting the display unit to components of the peripheral device that are around the wiring, the wiring being between the display unit and the components of the peripheral device;

forming a passivation layer to cover the display unit and the peripheral device; and
forming a material layer on the first contact lens to cover the passivation layer, the material layer making hermetic contact with the first contact lens around the passivation laver,
wherein the material layer covers only a front surface of the first contact lens in the first contact lens.

11. The method of claim 10 , wherein the forming of the display unit comprises:
forming a transparent substrate layer on a curved surface of a mold layer;
transferring a switch array layer to the transparent substrate layer;
transferring a light emission layer to the switch array layer; and
forming wires to connect devices of the switch array layer with devices of the light emission layer.

12. The method of claim 11 , wherein the transferring the switch array layer and the light emission layer including transfer-printing.

13. The method of claim 11 , wherein the transparent substrate layer comprises:
a microlens array including a plurality of microlenses, the microlens array having a varying microlens distribution density.

14. The method of claim 11 , wherein the light emission layer comprises:
a light emission device array having a plurality of light emission devices, the light emission device array having a varying light emission device distribution density.

15. The method of claim 11 , wherein the wires have a pop-up structure or a filamentary serpentine structure.

16. The method of claim 11 , wherein the transferring the light emission layer comprises:
forming an array comprising a plurality of light emission devices on a silicon substrate;
transferring the array to a flexible substrate;
deforming the flexible substrate in a curved shape such that the array has a curvature corresponding to the curved surface of the mold layer; and
transferring the array to the switch array layer and removing the flexible substrate.

17. The method of claim 10 , wherein the material layer includes a same material as a material used to form the first contact lens.

18. The method of claim 10 , further comprising:
forming a second contact lens on the first contact lens to cover the passivation layer.

19. The method of claim 10 , wherein the forming the peripheral device comprises:
forming a device layer on a substrate;
separating the device layer from the substrate;
flattening the first contact lens by pulling the first contact lens in radial directions;
transferring the device layer to the flattened first contact lens;
forming the wiring to connect the device layer and the display unit; and
returning the first contact lens to an original shape.

20. The method of claim 19 , wherein the wiring has a filamentary serpentine structure.

21. A method of operating a smart contact lens, the method comprising:
receiving information;
transmitting the information to a display unit; and
projecting light directly onto a retina using the display unit, the light including the information, wherein the smart contact lens includes a passivation layer covering the display unit,
a material layer covers the passivation layer and makes hermetic contact with the smart contact lens around the passivation layer,
the material layer covers only a front surface of the smart contact lens in the smart contact lens,
wiring surrounds the display unit, the wiring having a circular shape and connecting the display unit to electrical components that are around the wiring, the wiring being between the display unit and the electrical components, and
the smart c

Assignees

• Samsung Electronics Co Ltd

Inventors

• Kim Taeho
• Hwang Sungwoo
• Kim Sangwon
• Ahn Hoyoung
• Chung Daeyoung

Classifications

• G02C11/10 Primary

  Electronic devices other than hearing aids · CPC title

• G02C7/04 Primary

  Contact lenses for the eyes (disinfection or sterilisation of contact lenses A61L12/00) · CPC title

• G02B2027/0178

  Eyeglass type (eyeglass details G02C) · CPC title

• G02B27/017

  Head mounted · CPC title