Apple Inc.

Mookyung Son

Victor H Yin

Daming Xu

Jun Qi

Rong Liu

Heesang Suh

Wenyong Zhu

Chenhua You

Suraj P Gorkhali

Zhenyue Luo

Ling Han

Wei Lv

Xinyu Zhu

Joshua A Spechler

Ziruo Hong

Yufeng Yan

Juan He

Qingbing Wang

Pee Khiam So

Hung Sheng Lin

Yu P Sun

Adria Fores Herranz

Janos C Keresztes

Shin-Ying Lu

Edward H Kang

John Z Zhong

Zhibing Ge

Wei Lin

Sunggu Kang

Marc Albrecht

Po-Jui Chen

Nathan K Gupta

Zhenbin Ge

Xiaokai Li

Pey-Jiun Ko

Chun-Hao Tung

Dhaval Chandrakant Patel

Christopher L Boitnott

Steven M Scardato

Aaron L Holsteen

Ross Thompson

Eugene C Cheung

Xiaofan Niu

Wookyung Bae

Xiaoqi Zhou

Thomas O Henry

Se Hyun Ahn

Judith C Segura

Wei He

Yindar Chuo

Rasmi R Das

Robert W Rumford

Steve L Terry

Michael Tom

Mahnaz Mohammadi

Mingkun Li

Jay Mayur Khandhar

Shaofeng Liu

Pee Khaim So

Yi Gu

Ryan A Zimmerman

Po Hsun Chen

Fei Yan

Shan-Ting Hsu

Byungsoo Ko

Thomas Mueller

Alexander P Yu

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 on a printed circuit board. The backlight unit may include first, second, and third light spreading layers formed over the array of light-emitting diodes. A color conversion layer may be formed over the first, second, and third light spreading layers. First and second brightness enhancement films may be formed over the color conversion layer.

Displays with direct-lit backlight units

An electronic device with a force sensing device is disclosed. The electronic device comprises a user input surface defining an exterior surface of the electronic device, a first capacitive sensing element, and a second capacitive sensing element capacitively coupled to the first capacitive sensing element. The electronic device also comprises a first spacing layer between the first and second capacitive sensing elements, and a second spacing layer between the first and second capacitive sensing elements. The first and second spacing layers have different compositions. The electronic device also comprises sensing circuitry coupled to the first and second capacitive sensing elements configured to determine an amount of applied force on the user input surface. The first spacing layer is configured to collapse if the applied force is below a force threshold, and the second spacing layer is configured to collapse if the applied force is above the force threshold.

Force sensing architectures

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 backlight unit. The backlight unit may include a printed circuit board, a plurality of light-emitting diodes mounted on the printed circuit board, at least one light spreading layer formed over the printed circuit board that spreads light received from the plurality of light-emitting diodes, a partially reflective layer formed over the at least one light spreading layer, a color conversion layer formed over the partially reflective layer, a collimating layer formed over the color conversion layer, a brightness enhancement film formed over the collimating layer, and a diffuser formed over the brightness enhancement film. The at least one light spreading layer may include two light spreading layers with elongated protrusions that are rotated relative to each other.

Displays with direct-lit backlight units and color conversion layers

Displays with direct-lit backlight units including light-emitting diodes and encapsulant

An electronic device may include display layers such as liquid crystal display layers and a backlight unit that provides illumination for the display layers. The backlight unit may include light-emitting diodes that emit light into the edge of a light guide film. To minimize the inactive area of the display, the light-emitting diodes may be tightly spaced to approximate a line light source instead of point light sources. Color and/or luminance compensation layers may be incorporated at various locations within the backlight structures to ensure that the backlight provided to the display layers is homogenous. A thin-film transistor layer of the display may be coupled to a printed circuit board by a flexible printed circuit. The flexible printed circuit may have additional solder mask layers to improve robustness, may include encapsulation, and may have traces with a varying pitch.

Electronic device display with a backlight and control circuitry that corrects pixel data to reduce transition artifacts

Electronic device display with a backlight

Displays with direct-lit backlight units and light spreading structures

Light-emitting diodes in displays with direct-lit backlight units

A display may have a backlight unit that provides backlight illumination. The backlight unit may include a light guide that distributes light through the display. Light-emitting diodes may emit light into the light guide. A reflector that is overlapped by the light guide may help reflect light upwards through an array of pixels. The backlight unit may have a chassis that receives the reflector, light guide, light-emitting diodes, and optical films such as diffusers and prism films. Optical and mechanical features in the backlight unit may enhance color and intensity uniformity for the backlight illumination and may help enhance durability.

Electronic devices with backlit displays

Growing community of inventors

Cupertino, CA, United States of America

Mookyung Son