In one embodiment, a computing system may receive a target image with a first number of bits per color. The system may access masks that each includes dots associated with a grayscale range. A subset of the dots associated with each of the masks may be associated with a subrange of the grayscale range. The dots within the subsets of dots associated with the masks may have different positions. The system may generate a number of images based on the target image and the masks. Each of the images may have a second number of bits per color smaller than the first number of bits per color. The system may display the images sequentially on a display for representing the target image.

A signal processing method of a transparent display is disclosed. The signal processing method includes: receiving an input signal; generating an image signal and a control signal from the input signal; outputting the image signal for light emission adjustment of the transparent display; and outputting the control signal for transparency adjustment of the transparent display.

A system may include a display element. The display element may include pixel groups. Each of the pixel groups may include: a first sub-pixel configured to output light of a first color; a second sub-pixel configured to output light of a second color; a third sub-pixel configured to output light of a third color; and a fourth sub-pixel configured to output light, wherein the fourth sub-pixel has a maximum brightness that is dimmer than a maximum brightness of each of the first sub-pixel, the second sub-pixel, and the third sub-pixel.

Aspects of the present invention relate to methods and systems for measuring and managing the brightness of digital content in a field of view of a head-worn computer.

A liquid crystal display device includes: a display unit including a first liquid crystal panel and a second liquid crystal panel disposed on a rear surface side of the first liquid crystal panel; and an image processor that generates first and second output image signals respectively output to the first and second liquid crystal panels based on an input image signal. The image processor includes; a distributor that distributes the input image signal into first and second distribution image signals used to generate the first and second output image signals, respectively; and a first unevenness corrector that generates the first output image signal by performing first unevenness correction to prevent display unevenness of the display unit on the first distribution image signal output from the distributor, and outputs the generated first output image signal to the first liquid crystal panel.

A system may include a display element. The display element may include pixel groups. Each of the pixel groups may include: a first sub-pixel configured to output light of a first color; a second sub-pixel configured to output light of a second color; a third sub-pixel configured to output light of a third color; and a fourth sub-pixel configured to output light, wherein the fourth sub-pixel has a maximum brightness that is dimmer than a maximum brightness of each of the first sub-pixel, the second sub-pixel, and the third sub-pixel.

A method and system for reducing the number of colors per pixel present in an image to increase the ability to detect objects or anomalies in the image. A final number of colors per pixel to reduce the image to is determined, wherein the final number of colors is a number of colors less than the number of colors per pixel in the original image. A corresponding threshold value for each of the final number of colors is identified, such that the corresponding threshold values optimize an arithmetic combination of separation score functions applied to the plurality of pixels and the threshold values. The image is reduced to the final number of colors per pixel, by creating an output image where a value of each output pixel is equal to the number of threshold values that are less than the value of the corresponding input pixel.

An image device for generating a 360 degree depth map includes a plurality of image capturers, wherein an image pair captured by each two adjacent image capturers of the plurality of image capturers is used for generating the 360 degree depth map, and a sum of all view angles of the plurality of image capturers is not less than 720 degree.

A method of ESL driver circuit includes: receiving third-color data and black/white data transmitted from a host circuit via specific communication protocol in a first transmission mode of specific communication protocol; receiving only the third-color data transmitted from the host circuit via the specific communication protocol in a second transmission mode of specific communication protocol; using third-color data buffer to receive and buffer the third-color data transmitted from the host circuit; using black/white data buffer to receive and buffer the black/white data transmitted from the host circuit in the first transmission mode of specific communication protocol; and detecting content of the third-color data buffered in the third-color data buffer to determine whether to output data stored in the black/white data buffer as a set of black/white data outputted to ESL panel or to refill a sequence of don't-care data as the set of black/white data outputted to ESL panel.

A method for transmitting a monochrome digital image from a digital image source connected to a monochrome screen by a transmission interface including a plurality of transmission channels, the monochrome image including a plurality of image pixels, the monochrome screen including a plurality of display pixels, the method including dividing the image pixels into a plurality of pixel groups; successively transmitting the pixel groups from the digital image source to the monochrome screen via the transmission interface, the image pixels of each group of pixels being transmitted in parallel via the transmission channels; assigning each image pixel received by the monochrome screen to a corresponding display pixel in such a way as to reconstruct the digital image on the monochrome screen.