Electronic device and touch and display driver integration

Abstract

A touch and display driver integration (TDDI) includes a touch driver circuit, a processor, and a display driver circuit. The touch driver circuit converts a first sensing signal having a first data format into a second sensing signal having a second data format. The processor determines a sensing value based on the value of the second sensing signal. The display driver circuit controls the display of the control panel based on the sensing value.

Claims

1. A touch and display driver integration (TDDI) comprising: A touch driving circuit for converting a first sensing signal having a first data form into a second sensing signal having a second data form; a processor for determining a sensing value based on the value of the second sensing signal; And a display driving circuit for controlling the display of a panel based on the sensed value, wherein the touch driving circuit is used to use a power supply voltage or a power supply current supplied by a battery to the TDDI as the first sense signal, and to convert a voltage level of the power supply voltage or a current level of the power supply current into a voltage value as the second sense signal.

2. The TDDI as claimed in claim 1, wherein the touch driving circuitry is configured to convert the first sensing signal having an analog data form into the second sensing signal having a digital data form.

3. The TDDI as described in claim 1, wherein the processor obtains the sensing value by querying a lookup table based on the value of the second sensing signal.

4. The TDDI as described in claim 1, wherein the processor performs calculations based on the value of the second sensing signal to obtain the sensing value.

5. The TDDI as described in claim 1 further includes at least one reserved signal pad for receiving the first sensing signal.

6. The TDDI as described in claim 1, wherein during multiple frame times, the touch driving circuitry continuously operates simultaneously with the display driving circuitry to generate the second sensing signal.

7. The TDDI as described in claim 1, wherein during a plurality of frame times, the touch driving circuitry periodically alternates with the display driving circuitry to generate the second sensing signal.

8. The TDDI as claimed in claim 1, wherein the sensed value includes a battery charge corresponding to the battery.

9. The TDDI as claimed in claim 8, wherein the processor is configured to determine the battery charge corresponding to the battery based on the voltage value as the sensing value, so that the display driving circuit controls the panel to display the battery charge.

10. An electronic device comprising: One panel; And a touch and display driver integration (TDDI), comprising: a touch driving circuit for converting a first sensing signal having a first data form into a second sensing signal having a second data form; and a processor for determining a sensing value based on the value of the second sensing signal. And a display driving circuit for controlling the display of the panel based on the sensed value, wherein the touch driving circuit is used to use a power supply voltage or a power supply current supplied by a battery to the TDDI as the first sense signal, and to convert a voltage level of the power supply voltage or a current level of the power supply current into a voltage value as the second sense signal.

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