Ophthalmic device with thin film nanocrystal integrated circuits

Patent metadata

Field	Value
Publication number	US-9429769-B2
Application number	US-201313891166-A
Country	US
Kind code	B2
Filing date	May 9, 2013
Priority date	May 9, 2013
Publication date	Aug 30, 2016
Grant date	Aug 30, 2016

Abstract

This invention discloses methods and apparatus to form Thin Film Nanocrystal Integrated Circuit transistors upon Three-dimensionally Formed Insert Pieces. In some embodiments, the present invention includes incorporating the Three-dimensional Surfaces with Thin Film Nanocrystal Integrated Circuit based thin film transistors, electrical interconnects, and energization elements into an Insert Piece for incorporation into Ophthalmic Device. In some embodiments, the Insert Piece may be directly used as a Media Insert or incorporated into an Ophthalmic Device.

First claim

The invention claimed is:

1. An ophthalmic device comprising:
a first media insert comprising an active optical device, a first thin film nanocrystal transistor, a first energization element and a first conductive trace, wherein the first thin film nanocrystal transistor comprises an n-type nanocrystal layer, wherein the first energization element is proximate to the first conductive trace so that the first energization element is in electrical communication with the first thin film nanocrystal transistor, wherein the active optical device comprises a liquid meniscus lens element having two immiscible fluids forming a meniscus therebetween, wherein the active optical device is in electrical communication with the first energization element and the first thin film nanocrystal transistor, and wherein the active optical device is configured to change the focal characteristics of the ophthalmic device upon application of an electrical charge to change the shape of the meniscus; and
a hydrogel material surrounding or encapsulating the first media insert.

2. The ophthalmic device of claim 1 , wherein the first thin film nanocrystal transistor comprises a p-type nanocrystal layer.

3. The ophthalmic device of claim 1 , wherein the first conductive trace comprises a transparent electrode.

4. The ophthalmic device of claim 1 , wherein the first energization element comprises a plurality of electrochemical cells, wherein the electrochemical cells are in connection at least in part in a series.

5. The ophthalmic device of claim 1 , wherein the first media insert further comprises an activation element in electrical communication with the active optical device.

6. The ophthalmic device of claim 1 , wherein the n-type nanocrystal layer comprises cadmium selenide nanocrystals.

7. The ophthalmic device of claim 1 , wherein the first media insert further comprises a second thin film transistor comprising a second nanocrystal layer, wherein the second thin film transistor is in electrical communication with the first energization element.

8. The ophthalmic device of claim 2 , wherein the p-type nanocrystal layer comprises copper selenide.

9. The ophthalmic device of claim 3 , wherein the transparent electrode comprises indium tin oxide.

10. The ophthalmic device of claim 5 , wherein the activation element comprises a pressure sensitive switch.

11. The ophthalmic device of claim 7 , wherein the second thin film transistor comprises a p-type nanocrystal layer.

12. The ophthalmic device of claim 11 , wherein the p-type nanocrystal layer of the second thin film transistor comprises copper selenide.

13. The ophthalmic device of claim 7 , additionally comprising a
second media insert comprising:
a second energization element;
a second conductive trace; and
a third thin film transistor comprising an organic semiconductor layer, wherein the second conductive trace is capable of placing the second energization element in electrical communication with the third thin film transistor.

14. The ophthalmic device of claim 13 , wherein the third thin film transistor comprises an n-type nanocrystal layer.

15. The ophthalmic device of claim 14 , wherein the n-type nanocrystal layer comprises cadmium selenide nanocrystals.

16. The ophthalmic device of claim 13 , additionally comprising a fourth thin film transistor, wherein the fourth thin film transistor comprises a p-type organic semiconductor layer.

17. The ophthalmic device of claim 16 , wherein the p-type organic semiconductor layer comprises pentacene.

18. The ophthalmic device of claim 1 , wherein the first media insert has a three-dimensional topography.

19. The ophthalmic device of claim 1 , wherein the first energization element is configured to energize a circuit that includes the first thin film nanocrystal transistor and a second thin film transistor, the first thin film nanocrystal transistor comprising an n-type nanocrystal layer and the second thin film transistor comprising a p-type nanocrystal layer.

20. The ophthalmic device of claim 19 , wherein the circuit is configured to permit the ophthalmic device to turn on and off.

21. The ophthalmic device of claim 1 , wherein the first thin film nanocrystal transistor comprises a gate electrode, a nanocrystal layer, a gate dielectric layer between the gate electrode and the nanocrystal layer, a source electrode in contact with the nanocrystal layer, and a drain electrode in contact with the nanocrystal layer.

22. An ophthalmic device comprising:
a first media insert having a three-dimensional surface, wherein first the media insert comprises at least a first thin film nanocrystal transistor, a first energization element and a first conductive trace, wherein the first thin film nanocrystal transistor comprises a n-type nanocrystal layer, and wherein the first energization element is proximate to the first conductive trace so that it is in electrical communication with the first thin film nanocrystal transistor; and
a hydrogel material surrounding or encapsulating the first media insert.

23. The ophthalmic device of claim 22 , wherein the first thin film nanocrystal transistor comprises a p-type nanocrystal layer.

24. The ophthalmic device of claim 22 , wherein the first conductive trace comprises a transparent electrode.

25. The ophthalmic device of claim 22 , wherein the first energization element comprises a plurality of electrochemical cells, wherein the electrochemical cells are in connection at least in part in a series.

26. The ophthalmic device of claim 22 , wherein the first media insert additionally comprises an active optical device capable of changing the focal characteristics of the ophthalmic device, wherein the active optical device is in electrical communication with the first energization element.

27. The ophthalmic device of claim 26 , wherein the active optical device comprises a liquid meniscus lens element having two immiscible fluids forming a meniscus therebetween, and wherein the active optical device is configured to change the focal characteristics of the ophthalmic device upon application of an electrical charge to change the shape of the meniscus.

28. The ophthalmic device of claim 26 , wherein the first media insert further comprises an activation element in electrical communication with the active optical device.

29. The ophthalmic device of claim 22 , wherein the n-type nanocrystal layer comprises cadmium selenide nanocrystals.

30. The ophthalmic device of claim 22 , wherein the first media insert additionally comprises a second thin film transistor comprising a second nanocrystal layer, wherein the second thin film transistor is in electrical communication with the first energization element.

31. The ophthalmic device of claim 24 , wherein the transparent electrode comprises indium tin oxide.

32. The ophthalmic device of claim 28 , wherein the activation element comprises a pressure sensitive switch.

33. The ophthalmic device of claim 30 , wherein the second thin film transistor comprises a p-type nanocrystal layer.

34. The ophthalmic device of claim 33 , wherein the p-type nanocrystal layer of the second thin film transistor comprises copper selenide.

35. The ophthalmic device of claim 30 , additionally compris

Assignees

• Johnson & Johnson Vision Care

Inventors

• Pugh Randall B
• Flitsch Frederick A

Classifications

• H10W90/00

  Package configurations · CPC title

• H10W42/00

  Arrangements for protection of devices (arrangements for thermal protection H10W40/00) · CPC title

• H01L2924/00

  Electricity · mapped topic

• H01L2924/0002

  Electricity · mapped topic

• H01L25/0657

  Electricity · mapped topic