Patent ID: 11973140
Assignee: HAINING ESWIN IC DESIGN CO., LTD.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. A driving method for detecting an on-chip voltage to adjust a gate voltage of a thin film transistor, comprising: an input step, receiving an input on-chip voltage by an input circuit and outputting the on-chip voltage; and an adjusting step, detecting a present amplitude of the on-chip voltage output by the input circuit by an adjusting circuit, and outputting a bias voltage corresponding to the present amplitude of the on-chip voltage to a gate of the driven thin film transistor, wherein a source of the thin film transistor is directly or indirectly coupled to the on-chip voltage, and the bias voltage is lower than the on-chip voltage, wherein the adjusting step comprises a set of steps selected from a group of a first set of steps, a second set of steps, and a third set of steps, wherein the first set of steps comprises outputting, by a reference voltage generator, a plurality of reference voltages related to N selectable amplitudes of the on-chip voltage; comparing, by a plurality of comparators, the on-chip voltage output by the input circuit with the corresponding reference voltage, and outputting comparison results; and determining, by a decision maker, a mode related to the present amplitude of the on-chip voltage output by the input circuit detected from N modes related to the N selectable amplitudes of the on-chip voltage based on the comparison results of the plurality of comparators, and according to the determined mode, outputting a bias voltage corresponding to the mode to the gate of the driven thin film transistor, wherein N is a positive integer greater than 1, wherein the second set of steps comprises: outputting the corresponding bias voltage by a V/I and I/V conversion circuit based on the on-chip voltage output by the input circuit according to an input-output relationship between the on-chip voltage and the bias voltage, wherein the step of outputting the corresponding bias voltage by the V/I and I/V conversion circuit based on the on-chip voltage output by the input circuit according to the input-output relationship between the on-chip voltage and the bias voltage comprises: converting the input on-chip voltage into a current signal by a V/I conversion circuit; and converting the current signal into the corresponding bias voltage by an I/V conversion circuit, wherein the third set of steps comprises: dividing, by a plurality of resistors, the input on-chip voltage to output a divided voltage.