Patent ID: 11922844
Assignee: NOVATEK MICROELECTRONICS CORP.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. An integrated driving device, comprising:
a touch sensing circuit configured to perform touch sensing in a plurality of touch sensing periods during a first frame period;
an optical sensing circuit configured to perform ambient light sensing by optical sensors, which are used as ambient light sensors and fingerprint sensors at different times, embedded in a display panel during at least one ambient light sensing period during the first frame period to obtain optical sensing signals for generating first ambient light information, wherein the optical sensing circuit is configured to perform fingerprint sensing by the optical sensors which are used as the fingerprint sensors during a second frame period;
wherein the plurality of touch sensing periods and the at least one ambient light sensing period are non-overlapping; and
a display driving circuit, configured to output data voltages in a plurality of display periods in the first frame period, wherein the plurality of display periods, the plurality of touch sensing periods, and the at least one ambient light sensing period are non-overlapping,
wherein the optical sensing circuit is configured to output a plurality of first control signals and a plurality of second control signals to a control circuit in a touch display panel, and wherein each of the plurality of first control signals is utilized for controlling when to reset all of sensor rows of a sensor region of an optical sensor array in the touch display panel at the same time and each of the plurality of second control signals is utilized for controlling when to read out the optical sensing signals from all of the sensor rows of the sensor region at the same time, and
the optical sensing circuit starts a first optical sensing cycle for generating the first ambient light information in the first frame period and starts a second optical sensing cycle for generating second ambient light information in the second frame period different from the first frame period, and wherein the first optical sensing cycle and the second optical sensing cycle are with respect to different sensor regions of the optical sensor array.