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Systems and methods for memory circuitry in an electronic display

專利號
US10867548B2
公開日期
2020-12-15
申請人
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
技術領域
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

After reading the bit, the row driver 60 may determine if the bit the last bit of the stored DATA 412 (block 471). The row driver 60 determines if the last bit has been read and/or transmitted to analog driver circuitry 442. A row driver 60 may mange this determination through a variety of ways, for example, maintaining a counter that increments in tandem with enabling of Sel signal 415 to indicate when the row driver 60 has read an expected number of bits from the memory circuitry 400.

If the bit is the last bit, the row driver 60 may complete the display cycle (block 427). The display cycle may include the whole process 461 such that upon reaching block 427, the row driver 60 has emitted the gray level of light corresponding to the DATA 412. Upon completing the display cycle, the row driver 60 may be ready to accept new DATA 412 corresponding to a same or different gray level for emission.

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