Touch screen control and display circuit and method alternating a frame update mode and a touch sensing mode
US10209815B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 13, 2016 |
| Grant date | Feb 19, 2019 |
| Priority date | — |
| Expiry date | Nov 9, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/0286
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch control and display control module of a touch screen includes (n×y) rows of sensing units disposed on a substrate. The touch control and display control module includes: a control circuit, controlling the touch screen to operate in one of a frame update mode and a touch sensing mode; and n first control lines, y second control lines and n control signal output circuits disposed on the substrate. Each control signal output circuit is coupled to one of the n first control line, and includes y control signal buffer units. Each control signal buffer units is coupled to one of the y second control lines and sensing units of one row to output a voltage signal to the sensing units of that row, to cause the sensing units of that row to operate in one of the frame update mode and the touch sensing mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.