PIXEL CIRCUIT, ITS DRIVING METHOD, LIGHT-EMITTING DIODE DISPLAY PANEL, AND DISPLAY DEVICE
First Claim
1. A pixel circuit, comprising a light-emitting diode (LED), a cathode of which is connected to a first signal source, wherein the pixel circuit further comprises:
- a display driving module connected to a first scanning line, a second scanning line, a control line, a data line, a second signal source, a third signal source and an anode of the LED, and configured to, under the control of a first scanning signal from the first scanning line, a second scanning signal from the second scanning line and a control signal from the control line, compensate for a threshold voltage of a driving transistor using a data signal from the data line and a second signal from the second signal source, so that a light-emitting driving signal for the LED is irrelevant to the threshold voltage of the driving transistor; and
a fingerprint identification module connected to the first scanning line, the second scanning line, a fourth signal source and a signal read line, and configured to, under the control of the first scanning signal from the first scanning line and the second scanning signal from the second scanning line, identify a fingerprint and detect a touch.
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Accused Products
Abstract
The pixel circuit includes a display driving module connected to a first scanning line, a second scanning line, a control line, a data line, a second signal source, a third signal source and an anode of an LED, and configured to, under the control of a first scanning signal, a second scanning signal and a control signal, compensate for a threshold voltage of a driving transistor using a data signal and a second signal, so that a light-emitting driving signal for the LED is irrelevant to the threshold voltage of the driving transistor; and a fingerprint identification module connected to the first scanning line, the second scanning line, a fourth signal source and a signal read line, and configured to, under the control of the first scanning signal and the second scanning signal, identify a fingerprint and detect a touch.
37 Citations
20 Claims
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1. A pixel circuit, comprising a light-emitting diode (LED), a cathode of which is connected to a first signal source, wherein the pixel circuit further comprises:
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a display driving module connected to a first scanning line, a second scanning line, a control line, a data line, a second signal source, a third signal source and an anode of the LED, and configured to, under the control of a first scanning signal from the first scanning line, a second scanning signal from the second scanning line and a control signal from the control line, compensate for a threshold voltage of a driving transistor using a data signal from the data line and a second signal from the second signal source, so that a light-emitting driving signal for the LED is irrelevant to the threshold voltage of the driving transistor; and a fingerprint identification module connected to the first scanning line, the second scanning line, a fourth signal source and a signal read line, and configured to, under the control of the first scanning signal from the first scanning line and the second scanning signal from the second scanning line, identify a fingerprint and detect a touch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification