Array substrate, touch screen and display apparatus containing the same, and method for driving the same

  • US 10,209,836 B2
  • Filed: 12/28/2015
  • Issued: 02/19/2019
  • Est. Priority Date: 08/13/2015
  • Status: Active Grant
First Claim
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1. A method for driving an array substrate for fingerprint recognition, the array substrate including a plurality of subpixel units, each subpixel unit including a pixel electrode and a common electrode, a plurality of data lines arranged along a row direction, a plurality of gate lines arranged along a column direction, each subpixel unit being corresponding to a gate line and a data line, two adjacent data lines forming a data line group, the method comprising:

  • sequentially sending switch-on signals by a processor to the gate lines row by row along the column direction, a duration of one of the switch-on signals on a single one of the gate lines being divided into a first phase and a second phase with respect to time, wherein;

    the first phase and the second phase are non-overlapping with respect to time, a combination of the first phase and the second phase corresponds to the duration of the one of the switch-on signals on the single one of the gate lines;

    in the first phase of the one of the switch-on signals, sending a touch-driving signal by the processor to a pixel electrode corresponding to the gate line through a first data line in each data line group, receiving a touch-sensing signal through a second data line in each data line group by the processor, and constructing a fingerprint pattern based on touch-sensing signals by the processor; and

    in the second phase of the one of the switch-on signals, simultaneously sending display signals by the processor to the first data lines and the second data lines in the data line groups to charge subpixel units corresponding to the gate line for displaying an image, a first data line in each data line group transmitting the touch-driving signal and the display signal respectively in the duration of the one of the switch-on signals, and a second data line in each data line group transmitting the touch-sensing signal and the display signal respectively in the duration of the one of the switch-on signals.

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