Morrison and Foerster LLP
Touch screen display uniformity
Improvement of visual uniformity of an integrated touch screen display is provided. A touch screen can include common electrodes separated by gaps in a Vcom layer. To improve visual non-uniformity in the display resulting from the gaps, a first set of semi-transparent dummy features (primary-dummy features) can be formed on a second layer at the locations of the gaps, and a second set of dummy features (supplementary-dummy features) can also be formed on the second layer or another layer to mitigate low spatial resolution of the primary-dummy features and/or non-uniform spacing of the primary-dummy features. In some examples, holes or slits can be formed in the Vcom layer at areas of the supplementary-dummy features to further improve visual uniformity.
Apple Inc.
G G G G G
G06F G06F G02F G06F G02F
inventional inventional inventional inventional inventional
Shin-Hung Keitaro Hiroshi Yu Cheng Shih-Chang Abbas Shang-Chih Majid Ting-Kuo
Yeh Yamashita Osawa Chen Chang Jamshidi-Roudbari Lin Gharghi Chang