摘要:
A pixel driving circuit for OLED display apparatus is provided. The pixel driving circuit is adapted to drive an OLED having a first terminal and a second terminal, while the first terminal couples to a first voltage source. The pixel driving circuit comprises a control circuit, a driving transistor and a diode. The control circuit generates a control signal to control an OLED current supplied to the OLED. The driving transistor has a first drain/source terminal, a second drain/source terminal and a gate terminal. The gate terminal receives the control signal to control a channel between the first and second drain/source terminal for adjusting the OLED current flowing through the channel. Further, the diode couples between the channel and a second voltage source.
摘要:
Systems for providing electrostatic discharge (ESD) protection. One of the Systems has a plurality of first-type thin film diode elements coupled to each other in series, and a plurality of second-type thin film diode elements coupled to each other in series. The first-type thin film elements are electrically connected to a signal line between an input end and a main circuit, and the second-type thin film diode elements are electrically connected to the signal line between the input end and the main circuit.
摘要:
Systems and methods for adjusting display parameters of an active matrix organic light emitting diode (AMOLED) panel are provided. The method includes obtaining optimum display parameters for subpixels of the AMOLED panel, storing the optimum display parameters in a non-volatile memory, loading the optimum display parameters stored in the non-volatile memory into a static register memory during normal operation of the AMOLED panel, and utilizing the optimum display parameters loaded in the static register memory to drive the AMOLED panel to have optimum color properties while displaying image data.
摘要:
Systems and methods for adjusting display parameters of an active matrix organic light emitting diode (AMOLED) panel are provided. The method includes obtaining optimum display parameters for subpixels of the AMOLED panel, storing the optimum display parameters in a non-volatile memory, loading the optimum display parameters stored in the non-volatile memory into a static register memory during normal operation of the AMOLED panel, and utilizing the optimum display parameters loaded in the static register memory to drive the AMOLED panel to have optimum color properties while displaying image data.
摘要:
Display devices for displaying images are provided. A representative display device incorporates a display panel that includes a display pixel and a non-display pixel. The display pixel includes at least one switching thin-film transistor and the non-display pixel includes dummy thin-film transistors. A number of the dummy thin-film transistors exceeds a number of the switching thin-film transistors.
摘要:
Systems and methods providing driving voltages to an RGBW display panel. A representative system comprises a data driver with a reference voltage generation circuit that is operative to provide reference voltages according to a white component signal (W) extracted from three color input signals (R,G,B), and a digital-to-analog (D/A) conversion unit that is operative to generate driving voltages according to the reference voltages, the three color input signals and the white component signal.
摘要:
A process for forming a polycrystalline silicon layer includes the following steps. Firstly, at least one seed is formed on a substrate. Then, an amorphous silicon layer is formed on the substrate and overlies the seed. Then, the amorphous silicon layer is irradiated with a laser to melt the amorphous silicon layer. Afterward, the molten amorphous silicon layer is recrystallized to form a polycrystalline silicon layer.
摘要:
Systems and methods providing driving voltages to an RGBW display panel. A representative system comprises a data driver with a reference voltage generation circuit that is operative to provide reference voltages according to a white component signal (W) extracted from three color input signals (R,G,B), and a digital-to-analog (D/A) conversion unit that is operative to generate driving voltages according to the reference voltages, the three color input signals and the white component signal.
摘要:
Systems and methods for generating reference voltages are provided. A representative system comprises a resistor circuit; a first switch coupled between a first end of the resistor circuit and a first power source; a second switch coupled between the first end of the resistor circuit and a second power source; a third switch coupled to a second end of the resistor circuit; a fourth switch coupled to the second end of the resistor circuit; a first resistor coupled between the first end of the resistor circuit and the first switch; a second resistor coupled between the first end of the resistor circuit and the second switch; a third resistor coupled between the second end of the resistor circuit and the third switch; a fourth resistor coupled between the second end of the resistor circuit and the fourth switch; and a control circuit for controlling the switches.
摘要:
Display devices for displaying images are provided. A representative display device incorporates a display panel that includes a display pixel and a non-display pixel. The display pixel includes at least one switching thin-film transistor and the non-display pixel includes dummy thin-film transistors. A number of the dummy thin-film transistors exceeds a number of the switching thin-film transistors.