Ji Mann Choi

US Patent:

20200201482, Jun 25, 2020

Filed:

Dec 12, 2019

Appl. No.:

16/712339

Inventors:

- Cupertino CA, US
Chun-Hao TUNG - Santa Clara CA, US
Ji Hun CHOI - Los Gatos CA, US
Wenqing DAI - San Jose CA, US

International Classification:

G06F 3/044

Abstract:

Touch screens with ultra-thin stack-ups can provide for a lower profile device, can improve the optical image on the display by reducing the display to cover glass distance, and can reduce the weight of the device. In some examples, the thickness of the touch screen stack-up can be reduced and/or the border region reduced, by removing the flex circuit connection from the stack-up. A flexible substrate can be used to enable routing of touch electrodes to touch circuitry. In some examples including a shield layer, the thickness of the touch screen stack-up can be reduced by routing the shield layer to a shield electrode on the touch sensor panel. The shield layer can then be routed to touch sensing circuitry via the flexible substrate. In some examples, the touch sensor panel or a portion of thereof can be integrated with the polarizer.

US Patent:

20200110485, Apr 9, 2020

Filed:

Sep 27, 2019

Appl. No.:

16/585957

Inventors:

- Cupertino CA, US
Ji Hun CHOI - Los Gatos CA, US
Chun-Hao TUNG - San Jose CA, US
Sunggu KANG - San Jose CA, US

International Classification:

G06F 3/044
G06F 3/041

Abstract:

A touch sensor panel is disclosed. In some examples, the touch sensor panel includes a substrate including a first side and a second side, a passivation layer, a first plurality of touch electrodes formed on the first side of the substrate, and a second plurality of touch electrodes formed on the second side of the substrate. In some examples, a component of the touch sensor panel, other than the first plurality of touch electrodes and the second plurality of touch electrodes, is configured to prevent light configured to activate the passivation layer during fabrication of the touch sensor panel from being transmitted from the first side of the substrate to the second side of the substrate.