United States Patent Application | 20180259776 |
Kind Code | A1 |
Alton; Daniel James ; et al. | September 13, 2018 |
DISPLAY DEVICES WITH TRANSMITTANCE COMPENSATION MASK
AbstractA see-through, near-eye mixed reality head mounted display (HMD) device includes left and right see-through display regions within which virtual images are displayable. These left and right see-through display regions each having a transmittance that is less than one hundred percent. The see-through, near-eye mixed reality HMD device also includes a see-through transmittance compensation mask that includes a left window through which the left see-through display region is visible and a right window through which the right see-through display region is visible. In accordance with various embodiments, the see-through transmittance compensation mask is used to provide a substantially uniform transmittance across the field-of-view of a user wearing the HMD device.
Inventors: | Alton; Daniel James; (Bellevue, WA) ; Ackerman; Nathan; (Seattle, WA) ; Frank; Philip Andrew; (Kirkland, WA) ; Hodge; Andrew; (Palo Alto, CA) ; Corlett; Barry; (San Francisco, CA) |
Applicant: | Name | City | State | Country | Type |
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Microsoft Technology Licensing, LLC | Redmond | WA | US | |
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Family ID: | 53525277 |
Appl. No.: | 15/977869 |
Filed: | May 11, 2018 |
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[0027] There are different image generation technologies that can be used to implement such see-through displays or micro-display devices. For example, transmissive projection technology can be used, where a light source is modulated by an optically active material and backlit with white light. These technologies are usually implemented using liquid crystal display (LCD) type displays with powerful backlights and high optical energy densities. Alternatively, a reflective technology, in which external light is reflected and modulated by an optically active material, can be used. Digital light processing (DLP), liquid crystal on silicon (LCOS) and Mirasol.RTM. display technology from Qualcomm, Inc. are all examples of reflective technologies. Additionally, such see through micro-displays or micro-display devices can be implemented using an emissive technology where light is generated by the display, see for example, a PicoP.TM. display engine from Microvision, Inc. Another example of emissive display technology is a micro organic light emitting diode (OLED) display. Companies such as eMagin and Microoled provide examples of micro OLED displays.
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