AMOLED display device and pixel driving method thereof

Abstract

The invention relates to an AMOLED display device and a pixel driving method thereof. The AMOLED display device comprises a substrate and sub pixel unit arrays formed on the substrate. Each sub pixel unit array comprises two sub pixel units arranged side by side, wherein the sub pixel units are the same in color. Each sub pixel unit is correspondingly connected with a scanning line and a data line. According to switching transistors in the sub pixel units in the same column, one ends of the switching transistors are connected to the same data line in parallel so as to receive data signals output by a data driving unit. One end of each data line is connected with the output end of the data driving unit through a first control switch unit. When the first control switch units on the data lines in the odd columns are switched on or switched off, the first control switch units on the data lines in the even columns are switched off or switched on so that every two sub pixel units arranged side by side with the same color can emit light alternately on different-frame pictures. According to the AMOLED display device and the pixel driving method of the AMOLED display device, one traditional sub pixel unit is divided into two parts, and the two sub pixels are driven to emit light alternately on the different-frame pictures so as to shorten the light-emitting time of an OLED and prolong the service life of the OLED.

Description

technical field [0001] The present invention relates to an organic light-emitting panel display technology, in particular to an AMOLED display device and a pixel driving method thereof. Background technique [0002] Organic light-emitting diode (OLED) has many advantages such as self-illumination, ultra-thin, wide viewing angle, low power consumption, and bendability. OLED-based display panels have become a research hotspot in display technology. Among them, the active matrix organic light-emitting diode display device AMOLED has become the main direction of future development because of its superior performance and good development prospects. [0003] Compared with the liquid crystal display device TFT-LCD, AMOLED not only needs to use a switching transistor, but also needs to use a driving transistor, and the current generated by the driving transistor in a saturated state drives the organic light-emitting diode to emit light. Generally, in a row-by-row scan mode, the swi...

AI Technical Summary

Problems solved by technology

With the prolongation of working time, organic light-emitting diodes will accumulate a lot of unrecombined holes or electrons at the internal interface of the light-emitting layer, thereby forming a built-in electric field inside, resulting in a continuous increase in threshold voltage, and a continuous decrease in its luminous brightness. Utilization efficiency will gradually decrease

In view of this, how to effectively improve or eliminate the defects of uneven brightness, low energy utilization and short service life is an urgent task for relevant technical personnel in the industry.

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