Apple Inc.

Silicon Bandwidth, Inc.

Ton-Yong Wang

Shih Chang Chang

Ming Xu

Ting-Kuo Chang

Zhibing Ge

Stanford W Crane, Jr

Kyung-Wook Kim

Charley T Ogata

Hiroshi Osawa

Shang-Chih Lin

Myoung-soo Jeon

Sang Un Choi

Jose Emmanuel Schutt-Aine

Jungbae Kim

Andreas C Cangellaris

A display may have an array of pixels controlled by display driver circuitry. The pixels may have pixel circuits. In liquid crystal display configurations, each pixel circuit may have an electrode that applies electric fields to an associated portion of a liquid crystal layer. In organic light-emitting diode displays, each pixel circuit may have a drive transistor that applies current to an organic light-emitting diode in the pixel circuit. The pixel circuits and display driver circuitry may have thin-film transistor circuitry that includes transistor such as silicon transistors and semiconducting-oxide transistors. Semiconducting-oxide transistors and silicon transistors may be formed on a common substrate. Semiconducting-oxide transistors may have polysilicon layers with doped regions that serve as gates. Semiconducting-oxide channel regions overlap the gates. Transparent conductive oxide and metal may be used to form source-drain terminals that are coupled to opposing edges of the semiconducting oxide channel regions.

Display with semiconducting oxide and polysilicon transistors

A display may have a layer of liquid crystal material between a color filter layer and a thin-film transistor layer. Column spacer structures may be formed between the color filter layer and the thin-film transistor layer to maintain a desired separation between the color filter and thin-film transistor layers. Column spacers may be deposited in column spacer regions of the color filter layer. The color filter layer may include rows of red, green, and blue color filter elements. Blue color filter material that forms blue color filter elements in the color filter layer may also be used to form a planar surface over red and green color filter elements in the column spacer regions. Using the blue color filter material to planarize the surface on which column spacers are formed ensures that the column spacers provide sufficient support for the display without requiring an additional planarization layer.

Display with column spacer structures

A cluster grid array semiconductor die package and mating socket provide electrical connection between one or more semiconductor dies housed within the die package and substrate, such as a printed circuit board, on which the mating socket is mounted. The die package and the mating socket may be easily connected and disconnected. The die package may include power and ground planes built into and distributed within the housing of the die package.

Semiconductor die package having mesh power and ground planes

Growing community of inventors

Fremont, CA, United States of America

Ton-Yong Wang