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A pixel circuit and a driving method thereof, a display device

  • US 20170103706A1
  • Filed: 07/15/2015
  • Published: 04/13/2017
  • Est. Priority Date: 04/28/2015
  • Status: Active Grant
First Claim
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1. A pixel circuit, comprising a display driving module, a compensation module, a light emitting module and a fingerprint identification module;

  • the compensation module, connected with the display driving module, a first signal terminal, a second signal terminal, a third signal terminal, a first voltage terminal, a data signal terminal and a common voltage terminal respectively, for compensating the display driving module for a threshold voltage through signals inputted by the first voltage terminal and the data signal terminal under the control of the first signal terminal, the second signal terminal, and the third signal terminal;

    the display driving module, further connected with the light emitting module, for driving the light emitting module to emit light after the display driving module obtains the compensation for the threshold voltage;

    the light emitting module, further connected with an enable signal terminal, the first voltage terminal and the second voltage terminal, for emitting light through driving of the display driving module under the control of the enable signal terminal, the first voltage terminal and the second voltage terminal;

    the fingerprint identification module, connected with a fourth signal terminal, a fifth signal terminal and a readout signal line respectively, for collecting fingerprint information under the control of the fourth signal terminal and the fifth signal terminal, and transmitting the collected fingerprint information to the readout signal line;

    wherein the third signal terminal and the fifth signal terminal are connected with a third scanning signal line, the second signal terminal and the fourth signal terminal are connected with a second scanning signal line;

    or,the second signal terminal and the fifth signal terminal are connected with the second scanning signal line, the first signal terminal and the fourth signal terminal are connected with a first scanning signal line;

    or,the third signal terminal and the fifth signal terminal are connected with the third scanning signal line, the first signal terminal and the fourth signal terminal are connected with the first scanning signal line, the compensation module is further connected with the second voltage terminal.

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