Head mounted display device with rapid gamma correction between display panels

A method, comprising:

• periodically measuring a first gamma characteristic of a first display panel of a head mounted display (HMD) device by applying a set of currents to a pixel of the first display panel causing the pixel to generate a corresponding set of voltages;
• periodically measuring a second gamma characteristic of a second display panel of the HIVID device by applying the set of currents to a pixel of the second display panel causing the pixel to generate a corresponding set of voltages;
• identifying an adjustment to the second gamma characteristic, based on a difference between the first and second gamma characteristics, so that the first and second gamma characteristics substantially match;
• and
• periodically adjusting a bias applied to at least one pixel of the second display panel of the HMD device based on the identified adjustment, the second display panel different from the first display panel.

A head mounted display (HMD) device, comprising:

• a first display panel having a first pixel;
• a second display panel having a second pixel;
• and
• a gamma correction module comprising:
• a sensor configured to identify a first gamma characteristic of the first display panel and a second gamma characteristic of the second display panel by applying a set of currents to the first pixel and the second pixel to generate respective sets of voltages;
• and
• a control module configured to:
• identify any difference between the first and second gamma characteristics based on the sets of voltages;
• when a difference is identified, identify an adjustment to the second gamma characteristic, based on the difference, so that the first and second gamma characteristics substantially match;
• and
• adjust the second gamma characteristic of the second display panel based on the identified adjustment.