Abstract: An organic light emitting diode display device and a brightness driving method thereof are disclosed. The display device includes a display brightness value adjustment unit configured to adjust a display brightness value within a predetermined display brightness value interval and a data driving unit configured to receive a display brightness value and output different data voltages according to whether the display brightness value is equal to a display brightness value configured to correspond to a voltage switch point of a predetermined cathode voltage interval such that a brightness difference between any adjacent two of display brightness value is within a predetermined range.

Abstract: The present disclosure provides a display panel and a display device, including a plurality of control lines and pixel drive circuits electrically connected to the plurality of control lines to be loaded with a plurality of control signals, wherein a difference value between a maximum value and a minimum value of each of the plurality of control signals is determined as a voltage difference value, each of the plurality of pixel drive circuits includes a drive transistor and a light emitting element electrically connected to each other, and for at least one control signal of the plurality of control signals, the voltage difference value corresponding to a larger second refresh rate is different from the voltage difference value corresponding to the smaller first refresh rate in the display panel.

Abstract: An organic light emitting diode display device and a brightness driving method thereof are disclosed. The display device includes a display brightness value adjustment unit configured to adjust a display brightness value within a predetermined display brightness value interval and a data driving unit configured to receive a display brightness value and output different data voltages according to whether the display brightness value is equal to a display brightness value configured to correspond to a voltage switch point of a predetermined cathode voltage interval such that a brightness difference between any adjacent two of display brightness value is within a predetermined range.

Abstract: A method for forming a boron doped region within a silicon material substrate, and the resulting silicon material substrate that includes the boron doped region, each use a boron doped aluminum oxide material layer as a boron dopant source layer. The method provides the boron doped region with a sheet resistance in a range from about 15 to about 300 ohms per square. The method is also applicable, in general, to forming an n doped region, a p doped region or an n and p co-doped region within a silicon material substrate.