Display substrate and display device

Abstract

The invention provides a display substrate and a display device. The display substrate comprises a plurality of pixel regions; each pixel region comprises a transparent sub-region and a display sub-region; a substrate; a plurality of light-emitting elements with different colors and a plurality of pixel driving circuits which are located on the substrate and located in the display subarea; the plurality of pixel driving circuits are respectively connected with the plurality of light-emitting elements with different colors in a one-to-one correspondence manner; the light-emitting element comprises an anode, a light-emitting functional layer and a cathode which are sequentially stacked; the anode comprises a light-transmitting layer and a light-proof layer which are overlapped with each other; the pixel driving circuit comprises a driving tube, and a first pole of the driving tube is connected with an anode of the light-emitting element; along the first direction, in the light-emitting elements with the same color in at least two adjacent display subareas, the orthographic projection of the light-transmitting layer arranged from the display subarea to the transparent subarea and the orthographic projection of the first pole of the driving tube arranged from the display subarea to the transparent subarea on the substrate are at least partially overlapped, and the orthographic projection of the light-transmitting layer and the orthographic projection of the light-proof layer on the substrate are at least partially not overlapped.

Description

technical field [0001] The invention belongs to the field of display technology, and in particular relates to a display substrate and a display device. Background technique [0002] OLED (Organic Light-Emitting Diode, Organic Light Emitting Diode) display products have the characteristics of self-luminescence, high brightness, wide viewing angle, high contrast, flexibility, low energy consumption, etc., so they have received extensive attention and become a new generation of display methods , has begun to gradually replace the traditional LCD (Liquid Crystal Display) display products, is widely used in mobile phone screens, computer monitors, full-color TVs and so on. In the related art, OLED display panels can be classified into top emission type and bottom emission type according to their different light emission modes. [0003] Top Emission transparent WOLED Panel (ie White Organic Light-Emitting Diode Panel, namely white OLED panel) is divided into a transparent area an...

AI Technical Summary

Problems solved by technology

Since the opaque conductive layer of the anode covers the pixel drive circuit of the OLED element, it is difficult to repair the faulty circuit in the pixel drive circuit after the anode is prepared; It is also difficult to confirm defects in the anode of the photoconductive layer

[0004] In addition, in order to ensure the transparency of the transparent white OLED panel, each pixel area on the panel is usually divided into a transparent area and a pixel area (for example, each pixel area is divided into a semi-transparent area and a half-pixel area), and a pixel in the pixel area The multiple sub-pixels included are concentrated in the pixel area, which further increases the difficulty of repairing the pixel drive circuit in the pixel area, and is prone to mutual damage caused by the repair of adjacent sub-pixel drive circuits

In addition, in order to generate the repair line, metal flat lines are usually used, which will occupy the transparent area and reduce the transparency of the OLED panel

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