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5. (WO2016028828) HEAD-MOUNTED DISPLAY WITH ELECTROCHROMIC DIMMING MODULE FOR AUGMENTED AND VIRTUAL REALITY PERCEPTION
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CLAIMS

1. An apparatus comprising:

a support structure;

a near-eye display, disposed on the support structure, to provide image light; and, a dimming module comprising:

a first transparent conductor,

a monochrome electrochromic compound,

an insulator, and

a second transparent conductor,

wherein the dimming module controls light passing through the dimming module in response to a current applied between the first and second transparent conductors.

2. The apparatus of claim 1, wherein the dimming module further comprises: a first transparent substrate;

a second transparent substrate; and

wherein the insulator and monochrome electrochromic compound are disposed at least partially between the first transparent conductor and the second transparent conductor.

3. The apparatus of claim 2, wherein the first transparent conductor is disposed at least partially adjacent the monochrome electrochromic compound, and

wherein the insulator is disposed at least partially adjacent the monochrome electrochromic compound.

4. The apparatus of claim 3, wherein the first transparent conductor is disposed at least partially between the first transparent substrate and the electrochromic compound, and

wherein the second transparent conductor is disposed at least partially between the insulator and the second transparent substrate.

5. The apparatus of claim 4, wherein the dimming module is disposed adjacent the near-eye display,

wherein the near-eye display provides image light in response to a signal from a display engine.

6. The apparatus of claim 2, wherein the dimming module comprises:

a third transparent conductor;

another monochrome electrochromic compound;

another insulator; and

a fourth transparent conductor.

7. The apparatus of claim 2, wherein the first and second transparent substrates includes a material selected from the group consisting of Poly methyl methacrylate, polycarbonate and glass.

8. The apparatus of claim 7, wherein the first and second transparent conductors includes a material selected from a group consisting of Indium Tin Oxide, metal mesh, silver nanowires, carbon nanotubes, graphene and Poly(3,4-ethylenedioxythiophene) polystyrene sulfonate.

9. The apparatus of claim 8, wherein the insulator includes silicon dioxide.

10. A method comprising :

sensing an ambient light value associated with an amount of ambient light received by a transmissive near-eye display;

executing an application to provide image light to the transmissive near-eye display; retrieving a near-eye display brightness value associated with the application;

determining a dimming value for a dimming module in response to the ambient light value and the near-eye display brightness value; and

limiting the amount of ambient light that passes through the dimming module in response to the dimming value.

11. The method of claim 10, comprising:

receiving a value that indicates a user preference as to the amount of ambient light that passes through the dimming module,

wherein determining the dimming value is based on the value that indicates the user preference rather than in response to the ambient light value and near-eye display brightness value.

12. The method of claim 10, comprising:

determining a type of the application and wherein determining the dimming value is based on the type of the application rather than in response to the ambient light value and the near-eye display brightness value.

13. The method of claim 12, wherein the type of the application includes a movie type, and wherein determining the dimming value includes setting the dimming value so that the ambient light that passes through the dimming module is reduced to a minimum.

14. The method of claim 10, wherein determining the dimming value in response to the ambient light value and the near-eye display brightness value comprises:

retrieving a near-eye display brightness range; and

retrieving a dimming module neutral density range,

wherein determining the dimming value is in response to the ambient light value, near-eye display brightness value, near-eye display brightness range and dimming module neutral density range.

15. The method of claim 10, wherein the dimming module includes a monochrome electrochromic cell, and wherein limiting the amount of ambient light that passes through the dimming module in response to the dimming value comprises:

applying an amount of current to the monochrome electrochromic cell in response to the dimming value.