Apple Inc.

Altera Corporation

Sunitha Chandra

Victor H Yin

Jun Qi

Keith J Hendren

Mingxia Gu

Edward J Cooper

Ari P Miller

Xinyu Zhu

Joshua A Spechler

Eric Lee Benson

Yanming Li

Zhenyue Luo

Ian A Guy

Meizi Jiao

Youchul Jeong

Xiang Fang

Francesco Ferretti

Eric N Vergo

Chungjae Lee

Mengyang Liang

Michael C Sulkis

Morteza Amoorezaei

Michael J Lee

Seth G McFarland

Marianna C Sbordone

Jie Xiang

Mary M Morrison

Terence Chan

Tim Tri Hoang

Kyung Suk Oh

Weiqi Ding

Yujeong Shim

A display may have a pixel array such as a liquid crystal pixel array. The pixel array may be illuminated with backlight illumination from a direct-lit backlight unit. The backlight unit may include an array of light-emitting diodes (LEDs) on a printed circuit board. The display may have a notch to accommodate an input-output component. Reflective layers may be included in the notch. The backlight may include a color conversion layer with a property that varies as a function of position. The light-emitting diodes may be covered by a slab of encapsulant with recesses in an upper surface.

Display modules with direct-lit backlight units

Systems and methods are provided for reducing jitter due to power supply noise in an integrated circuit by drawing additional current. The additional current causes the total current to generally have a frequency higher than a resonant frequency of the integrated circuit and/or a power distribution network of the integrated circuit. In one example, a power distribution network may supply power to components of an integrated circuit and data driver circuitry may draw first current to drive a data signal. Compensation circuitry may draw second current at times when the data driver circuitry is not drawing the first current, thereby causing a net of the first and second current to be higher than a resonant frequency range of the integrated circuit device and/or a component of the integrated circuit device (e.g., the power distribution network).

Systems and methods for reducing power supply noise or jitter

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Cupertino, CA, United States of America

Sunitha Chandra