Apple Inc.

Levent Erdal Aygun

Yun Yu Wang

Chin-Wei Lin

Fan Gui

Mohammad Reza Esmaeili Rad

Xin Lin

Ran Tu

Shih Chang Chang

Tsung-Ting Tsai

Ting-Kuo Chang

Abbas Jamshidi Roudbari

Warren S Rieutort-Louis

Shyuan Yang

Yuchi Che

Bhadrinarayana Lalgudi Visweswaran

Ricardo A Peterson

Cheng-Chih Hsieh

Aida Raquel Colon-Berrios

Aida R Colon-Berrios

A display may include an array of pixels. Each pixel in the array may include a drive transistor, emission transistors, a data loading transistor, a gate voltage setting transistor, an initialization transistor, an anode reset transistor, a storage capacitor, and an optional current boosting capacitor coupled in series with an isolation transistor. A data refresh may include a initialization phase, a threshold voltage sampling phase, and a data programming phase. The threshold voltage sampling phase can be substantially longer than the data programming phase to decrease a current sampling level during the threshold voltage sampling phase, which helps reduce the display luminance sensitivity to temperature variations. During a data refresh, the isolation transistor can be turned on to provide current boosting. During emission periods, the isolation transistor is turned off to prevent cathode noise from potentially coupling through to one or more direct-current voltage nodes in the pixel.

Electronic devices with displays for mitigating cathode noise

To reduce the amount of space occupied in the inactive area of a display by gate driver circuitry, at least a portion of the gate driver circuitry may be positioned in the active area of the display. To accommodate the gate driver circuitry, emissive sub-pixels may be laterally shifted relative to corresponding thin-film transistor sub-pixels. This allows for the thin-film transistor sub-pixels to be grouped adjacent to the central area of the active area, leaving room along an edge of the active area to accommodate one or more additional display components such as gate driver circuitry or fanout portions of data lines.

Displays with gate driver circuitry in an active area

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Levent Erdal Aygun