Pixel circuit and display apparatus including the same
AssigneeSamsung Electronics Co., Ltd.
InventorsJung-Woo Kim, Yong-Wan Jin
Life of this patent
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Abstract
A pixel circuit includes a first transistor that supplies a data signal to a first node in response to a scan signal. The pixel circuit may also include a capacitor that is connected between the first node and a ground voltage and a detecting unit that is connected in parallel with the capacitor. More so, the detecting unit may change a voltage of the first node by being activated in response to a mode signal. Also, the detecting unit may have resistance that varies according to an external stimulus. The pixel circuit may also include a second transistor that is complementarily activated with respect to the detecting unit in response to the mode signal, and that provides a voltage of the first node.
Claims20
A pixel circuit comprising:
- a first transistor configured to supply a first signal to a first node in response to a second signal;
- a capacitive unit connected between the first node and a ground voltage;
- a detecting unit configured to change a voltage of the first node by being activated in response to a third signal, and the detecting unit having a resistance varying according to an external stimulus;
- and
- a second transistor configured to be complementarily activated with respect to the detecting unit in response to the third signal and provide a voltage of the first node to a display device in response to the third signal.
A display apparatus comprising:
- a control unit configured to generate a first control signal, a second control signal, and a mode signal;
- a scan driver configured to generate a scan signal according to the second control signal;
- a data driver configured to generate a first data signal according to the first control signal;
- and
- a pixel array configured to transfer the first data signal when the mode signal corresponds to a first logic state, and to provide the data driver with a second data signal when the mode signal corresponds to a second logic state, the second data signal being different than the first data signal, and the second data signal being based on an external stimulus.
Dependencies are inferred from the claim text.