Patent ID: 9620057
Date: 2017-04-11
CPC Classifications: G09G

Claim:
1. A method for adjusting a driving voltage for a pixel circuit, wherein the pixel circuit comprises a plurality of sub-pixel circuits forming a plurality of pixel rows, the method comprising: acquiring data voltages for each sub-pixel circuit in a pixel row to be scanned in the pixel circuit, the sub-pixel circuit comprising a driving thin film transistor (TFT) and a light-emitting element; calculating, in accordance with the data voltages, a minimum driving voltage for each sub-pixel circuit in the pixel row to be scanned, the minimum driving voltage being a minimum voltage that ensures the driving TFT to operate in a saturation region and ensures the light-emitting element to emit light normally; selecting a maximum value from among the minimum driving voltages for the sub-pixel circuits in the pixel row to be scanned, and configuring the maximum value as a maximum driving voltage for the pixel row to be scanned; and comparing the determined maximum driving voltage for the pixel row to be scanned with maximum driving voltages for one immediately previous row before the pixel row to be scanned, keeping the determined maximum driving voltage for the pixel row to be scanned unchanged, in response to a first determination result where the determined maximum driving voltage for the pixel row to be scanned unchanged is greater than the maximum driving voltages for the one immediately previous row before the pixel row to be scanned, and changing the determined maximum driving voltage for the pixel row to be scanned unchanged into the maximum driving voltages for the immediately previous row before the pixel row to be scanned, in response to a second determination result where the determined maximum driving voltage for the pixel row to be scanned unchanged is smaller than or equal to the maximum driving voltages for the one immediately previous row before the pixel row to be scanned.