Sparse under display LIDAR
AssigneeSTMicroelectronics (Research & Development) Limited
InventorAndreas Abmann
Life of this patent
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Abstract
A system to sample light including an array of light-sensitive pixels and a content display. The content display includes an array of content-display pixels; and an array of masking pixels individually selectable to switch between an opaque state and a transparent state, the array of masking pixels being aligned with the array of light-sensitive pixels so light-sensitive pixels may be selected to receive light passing through the content display by selecting the states of the array of masking pixels.
Claims20
A system to sample light comprising:
- an array of light-sensitive pixels;
- and
- a content display comprising:
- an array of content-display pixels;
- and
- an array of masking pixels arranged between the array of content-display pixels and the array of light-sensitive pixels, each pixel in the array of masking pixels individually selectable to switch between an opaque state and a transparent state, the array of masking pixels being aligned with the array of light-sensitive pixels so light-sensitive pixels may be selected to receive light passing through the content display by selecting the states of the array of masking pixels.
A method to sense light comprising:
- having an array of content-display pixels and an array of masking pixels arranged between the array of content-display pixels and an array of light-sensitive pixels, each pixel in the array of masking pixels individually addressable to switch between an opaque state and a transparent state, the array of masking pixels being aligned with the array of light-sensitive pixels so light-sensitive pixels may be selected to receive light passing through the array of content-display pixels by selecting the states of the array of masking pixels;
- and
- simultaneously displaying content on the array of content-display pixels and receiving light at the array of light-sensitive pixels through a pattern of masking pixels selected to be in the transparent state.
A system to sample light comprising:
- an array of light-sensitive pixels;
- a light source;
- a content display comprising:
- an array of content-display pixels;
- and
- an array of masking pixels arranged between the array of content-display pixels and the array of light-sensitive pixels, each pixel in the array of masking pixels individually selectable to switch between an opaque state and a transparent state, the array of masking pixels being aligned with the array of light-sensitive pixels so light-sensitive pixels may be selected to receive light passing through the content display by selecting the states of the array of masking pixels, and the array of masking pixels being aligned with the light source so light may be projected through the content display from the light source in illumination patterns that are determined by selecting the states of the array of masking pixels;
- and
- a controller coupled with the array of masking pixels to provide a drive signal to select the states of the array of masking pixels.
Dependencies are inferred from the claim text.