Apple Inc.

Takahide Ishii

Ting-Kuo Chang

Shang-Chih Lin

Shih Chang Chang

Chin-Wei Lin

Shinya Ono

Ching-Sang Chuang

Keisuke Omoto

Tsung-Ting Tsai

Jean-Pierre Simon Guillou

Abbas Jamshidi Roudbari

Prashant Mandlik

Jae Won Choi

Jiun-Jye Chang

Bhadrinarayana Lalgudi Visweswaran

Yu-Wen Liu

Yu Hung Chen

Ankit Mahajan

Cheng Kai Chen

Jun Qi

Rui Liu

Hung Sheng Lin

Shin-Hung Yeh

Tyler Robin Kakuda

Andrew C Lin

ByoungSuk Kim

Yi Huang

Yi Qiao

Lun Tsai

Meng-Huan Ho

Ying-Chih Wang

Christopher Edward Glazowski

Chia-Yu Chen

David S Hum

Hung-Che Ting

Yanming Li

Donghee Nam

Jung Yen Huang

Aleksandr N Polyakov

Kwang Ohk Cheon

KiBeom Kim

Cheng-Chih Hsieh

Tsung-Hsiang Shih

Han Liu

Chih-Lei Chen

Yurii Morozov

Chih Pang Chang

Nai-Chih Kao

Themistoklis Afentakis

Chin Wei Hsu

Hui Lu

Chia-hao Chang

Kuan-yi Lee

Ko-Wei Chen

Chang Ming Lu

Sheng Hui Shen

Kai-Chieh Wu

Chung-Wang Lee

Hsing-Chuan Wang

Fu-Yu Teng

Yu-Chuan Pai

Jianhong Lin

HanChi Ting

Chuan-Sheng Wei

David L Wei

Asli Sirman

An electronic device may have a display such as an organic light-emitting diode display. The organic light-emitting diode (OLED) display may have an array of organic light-emitting diode pixels that each have OLED layers interposed between a cathode and an anode. A first passivation layer, a first planarization layer, and a second passivation layer may be formed over the cathode. The first and second passivation layers may be formed from inorganic material. A second planarization layer may be formed over the second passivation layer between the second passivation layer and a polarizer. The second planarization layer may planarize the polarizer at the edges of the active area of the display where the polarizer would otherwise have a steep taper. Planarizing the polarizer in this way mitigates undesirable secondary reflections off of the polarizer. The first and second planarization layers may be formed from organic material.

Organic light-emitting diode displays with planarization layers

An organic light-emitting diode (OLED) display may have an array of pixels that each have OLED layers interposed between a cathode and an anode. The display may also include a planarization layer that is deposited using inkjet printing. To mitigate the need for dam structures to prevent overflow of the planarization layer during inkjet printing, capillary-flow-inducing structures may be included in the inactive area of the display. The topology of the capillary-flow-inducing structures may be propagated to a passivation layer such that an upper surface of the passivation layer has a similar topology as the capillary-flow-inducing structures. The planarization layer therefore undergoes capillary flow when deposited on the upper surface of the passivation layer. The capillary-flow-inducing structures may be formed from dots, rectangular strips, or trapezoidal strips. The capillary-flow-inducing structures may be formed from the same material as spacers in the active area or using another layer in the display.

Organic light-emitting diode displays with capillary-flow-inducing structures

An electronic device may include a display having an array of display pixels on a substrate. The display pixels may be organic light-emitting diode display pixels, that include hybrid thin-film transistor structures formed using semiconducting-oxide thin-film transistors, silicon thin-film transistors, and capacitor structures. A drive transistor in the display pixel may be a top-gate semiconducting-oxide thin-film transistor and a switching transistor in the display pixel may be a top-gate silicon thin-film transistor. A storage capacitor in the display may include a conductive semiconducting-oxide electrode.

Displays with silicon and semiconducting-oxide top-gate thin-film transistors

A display may have organic light-emitting diode pixels formed from thin-film circuitry. The thin-film circuitry may be formed in thin-film transistor (TFT) layers and the organic light-emitting diodes may include anodes and cathodes and an organic emissive layer formed over the TFT layers between the anodes and cathodes. The organic emissive layer may be formed via chemical evaporation techniques. The display may include moisture blocking structures such as organic emissive layer disconnecting structures that introduce one or more gaps in the organic emissive layer during evaporation so that any potential moisture permeating path from the display panel edge to the active area of the display is completely terminated.

Organic light-emitting diode display panels with moisture blocking structures

Display structures for controlling viewing angle color shift are described. In various embodiments, polarization sensitive diffusers, independent controlled cathode thicknesses, filtermasks, touch detection layers, and color filters are described.

Viewing angle color shift control

A component such as a display may have a substrate and thin-film circuitry on the substrate. The thin-film circuitry may be used to form an array of pixels for a display or other circuit structures. Metal traces may be formed among dielectric layers in the thin-film circuitry. Metal traces may be provided with insulating protective sidewall structures. The protective sidewall structures may be formed by treating exposed edge surfaces of the metal traces. A metal trace may have multiple layers such as a core metal layer sandwiched between barrier metal layers. The core metal layer may be formed from a metal that is subject to corrosion. The protective sidewall structures may help prevent corrosion in the core metal layer. Surface treatments such as oxidation, nitridation, and other processes may be used in forming the protective sidewall structures.

Electrical components having metal traces with protected sidewalls

Growing community of inventors

Taoyuan, Taiwan

Takahide Ishii