05-02-2015 дата публикации
Номер: US20150035798A1
Принадлежит:
The present invention belongs to the field of display technology, and provides an OLED pixel circuit, a drive method thereof and a display device, which may solve the problem of relatively complicated control circuit and manufacturing process of an existing in-cell touch screen. In the OLED pixel circuit of the present invention, the data writing unit is for writing power supply voltage signal and data line voltage signal into the storage unit; the storage unit is for supplying voltage to the drive unit; the touch detecting unit is for sensing touch and generating a detecting signal; the drive unit is for converting the detecting signal into a touch output signal and for 10 providing drive current fin the OLED; and the light-emitting control unit is for turning on the drive unit and the OLED. The present invention may allow the touch display device to be thinner and lighter. 1. An OLED pixel circuit , comprising:a data writing unit, a storage unit, a drive unit, an OLED, a light-emitting control unit and a touch detecting unit; wherein,the data writing unit, in a touch detecting stage and an OLED light-emitting stage, is used for writing a power supply voltage signal into the storage unit under the control of a light-emitting control line and a scanning line, and writing a data line voltage signal into the storage unit under the control of the scanning line;the storage unit is used for supplying voltage to the drive unit;the touch detecting unit, in the touch detecting stage, is used for sensing touch under the control of a touch signal level control line, and generating a detecting signal;the drive unit, in the touch detecting stage, is used for converting the detecting signal into a touch output signal, which is output via the touch detecting unit, under the control of the touch signal level control line, and, in the OLED light-emitting stage, is used for providing drive current for the OLED; andthe light-emitting control unit, in the OLED light-emitting stage, is ...
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