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Systems and methods for memory circuitry in an electronic display

專利號(hào)
US10867548B2
公開日期
2020-12-15
申請(qǐng)人
Apple Inc.(US CA Cupertino)
發(fā)明人
Tien-Chien Kuo; Kanghoon Jeon; Yingkan Lin; Bilin Wang; Ivan Knez; Stanley Bo-Ting Wang; Chun-Yao Huang
IPC分類
G09G3/32; G09G3/36; G09G3/20; G09G3/3275; G09G3/3258
技術(shù)領(lǐng)域
pixel,driver,emission,bit,circuitry,data,sub,row,memory,image
地域: CA CA Cupertino

摘要

An electronic display may include a memory formed in an active area of the electronic display or formed in integrated circuitry of the electronic display that is outside of the active area. The memory may store a digital data signal indicative of a value within a data range. The electronic display may include a driver disposed in the active area, where the driver may generate one or more analog electrical signals in response to the digital data signal. The electronic display may also include a light-modulating device disposed on the active area, where the light-modulating device may emit light based at least in part on the one or more analog electrical signals.

說明書

Similarly, portions of image data may program a subset of pixels associated with the electronic display 18 at a time. An image to be displayed is typically converted into numerical data, or image data, so that the image is interpretable by components of the electronic display 18. In this way, image data itself may be divided into small “pixel” portions, each of which may correspond to a pixel portion of the electronic display 18, or of a display panel corresponding to the electronical display 18. In some embodiments, image data is represented through combinations of red-green-blue light such that one pixel appearing to have a single color is really three sub-pixels respectively emitting a proportion of red, green, and blue light to create the single color. In this way, numerical values, or image data, that quantify the combinations of red-green-blue light may correspond to a digital luminance level, or a gray level, that associates a luminance intensity (e.g., a brightness) of a color of the image data for those particular sub-pixels. As will be appreciated, the number of gray levels in an image usually depends on a number of bits used to represent the gray levels in a particular electronic display 18, which may be expressed as 2N gray levels where N corresponds to the number of bits used to represent the gray levels. By way of example, in an embodiment where an electronic display 18 uses 8 bits to represent gray levels, the gray level ranges from 0, for black or no light, to 255, for maximum light and/or full light, for a total of 256 potential gray levels. Similarly, an electronic display 18 using 6 bits may use 64 gray levels to represent a luminance intensity for each sub-pixel.

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