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US 12,731,530 B2Granted
Micro-emitter display having a color-segmented backplane
AssigneeGoogle Inc.
InventorsBo Li, Kaushik Indravadan Sheth
Life of this patent
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Abstract
A color display that can deactivate colors based on one or more criteria is disclosed. Reducing the number of color channels used to display an image may help conserve power, which may help extend the operating life of a battery-operated device. The display includes a backplane that is segmented by color to enable the deactivation. The segmentation may also reduce electrical loading on the electrical lines used to address the pixels in the backplane.
Claims19
A display comprising:
- a pixel array configured to radiate light in color channels, the pixel array including:
- pixels organized into clusters, the clusters arranged in rows and columns and each cluster is configured to radiate the color channels via a blue pixel, a green pixel, a first red pixel, and a second red pixel;
- a plurality of bit-lines corresponding each column, wherein each bit-line corresponds to at least one of the color channels of a respective column;
- and
- a plurality of word-lines corresponding to each row including a first word-line coupled to the blue pixel and the green pixel in each cluster of a row and a second word-line coupled to the first red pixel and the second red pixel in each cluster of the row;
- and
- a display controller configured to:
- determine which color channels are active color channels;
- and
- address pixels corresponding to the active color channels to display an image received at the display.
7 more elements
A method comprising:
- receiving an image at a display including clusters of pixels configured to radiate light in color channels via a blue pixel, a green pixel, a first red pixel, and a second red pixel;
- designating pixels in each cluster as active-color-channel pixels or inactive-color-channel pixels;
- addressing the clusters of pixels by word-lines corresponding to the active-color-channel pixels to couple the active-color-channel pixels to respective bit-lines, wherein each row includes a a first word-line coupled to the blue pixel and the green pixel in each cluster of a row and a second word-line coupled to the first red pixel and the second red pixel in each cluster of the row;
- and
- writing image data to the active-color-channel pixels via the respective bit-lines to display the image.
2 more elements
A static random access memory (SRAM) display, the SRAM display comprising:
- clusters arranged in rows and columns, the clusters including blue pixels, green pixels, first red pixels, and second red pixels;
- a plurality of word-lines corresponding to each row including a first word-line coupled to the blue pixels and the green pixels of the clusters in a row and a second word-line coupled to the first red pixels and the second red pixels of the clusters in each row;
- and
- a display controller configured to:
- deactivate the second word-line to conserve power;
- and
- render an image using the blue pixels or the green pixels coupled to the first word-line.
4 more elements
Dependencies are inferred from the claim text.