Display panel and display device

Abstract

The embodiment of the invention discloses a display panel and a display device. The display panel comprises a substrate, an anode layer, a pixel defining layer and an OLED device, wherein the anode layer is arranged on the substrate; the pixel defining layer is arranged on the anode layer and the substrate; the OLED device is arranged in the pixel defining layer; and a photoelectric converter is further arranged in the pixel defining layer, and the photoelectric converter is arranged on the anode layer and is adjacent to the OLED device. According to the embodiment of the invention, the photoelectric converter is arranged in the pixel defining layer, so that light of the OLED device can be absorbed and converted into electric energy, and the electric energy can be directly used for compensating the OLED device with relatively low brightness and relatively fast attenuation on the one hand; and on the other hand, the brightness of the corresponding pixel unit is judged by monitoring theelectric signal, so that the OLED device with relatively low brightness and relatively fast attenuation is compensated through a pixel driving circuit, and the overall brightness uniformity of the panel can be improved in two aspects.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a display panel and a display device. Background technique [0002] Active-matrix organic light emitting diode panel (Active-matrix organic light emitting diode, AMOLED) has self-illuminating characteristics, using flexible substrates, flexible low-temperature polysilicon technology (LowTemperature Poly-silicon, LTPS) process and high-efficiency organic light-emitting diodes ( Organic Light-Emitting Diode, OLED) display technology. Compared with Liquid Crystal Display (LCD), AMOLED panel is self-illuminating, does not require backlight, has fast response, high color gamut, high contrast, wide viewing angle, wide viewing angle, low power consumption, foldable, and light weight , thin thickness, simple structure, low cost and other advantages, it is regarded as one of the most promising products. [0003] Unlike liquid crystals, AMOLED uses an active light emitting metho...

AI Technical Summary

Problems solved by technology

[0003] Different from LCD, AMOLED adopts an active light-emitting method, and each pixel (Pixel) unit emits light independently; therefore, it is very easy to have the problem of uneven light emission of Pixels in different areas of the panel

For example, factors such as uneven evaporation and different decay speeds of OLEDs of different colors will lead to uneven light emission of Pixels in different areas of the panel, resulting in uneven display of the entire panel and seriously affecting product quality.

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