A kind of top emission type oled display panel and display device

Abstract

Embodiments of the present invention provide a top-emission OLED display panel and a display device, which can enhance the display color gamut of the OLED display panel composed of a white OLED and a color filter layer, and improve the competitiveness of OLED products compared with LCD products. The display panel includes a base substrate, an array layer arranged on the base substrate, and a passivation layer covering the array layer; a reflective structure layer, a color filter layer and a flat layer sequentially arranged above the passivation layer; a reflective structure layer, Both the color filter layer and the flat layer expose the area where the passivation layer is located above the drive transistor in the array layer; the pixel defining layer and the white OLED device are arranged on the flat layer; the anode of the white OLED device passes through the via hole on the passivation layer It is electrically connected with the drain of the driving transistor; the pixel defining layer has a plurality of opening areas, and the light-emitting functional layer of the white light OLED device is at least arranged in the opening areas; the anode is a transparent electrode.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a top-emitting OLED display panel and a display device. Background technique [0002] At present, mass-produced high-resolution full-color display devices using OLED (Organic Light-Emitting Display) as the backlight source are usually implemented by laminating WOLED (white OLED) substrates and color filter layers. . [0003] The white light emitted by the white light OLED is composed of multiple colors of light, and its luminous spectrum has a large line width. In the OLED display panel structure formed by laminating the white light OLED and the color filter layer, the color filter layer is set On the light output side of the white OLED, limited by the limited thickness of the color filter layer, it is difficult for the white light to be fully filtered through the color resist, resulting in a red color displayed after the white light passes through the red, green, and blue colo...

AI Technical Summary

Problems solved by technology

[0003] The white light emitted by the white light OLED is composed of multiple colors of light, and its luminous spectrum has a large line width. In the OLED display panel structure formed by laminating the white light OLED and the color filter layer, the color filter layer is set On the light output side of the white OLED, limited by the limited thickness of the color filter layer, it is difficult for the white light to be fully filtered through the color resist, resulting in a red color displayed after the white light passes through the red, green, and blue color resists in the color filter layer above. The color purity of light, green light, and blue light is also low, which affects its display quality

This makes OLED display products less competitive than traditional LCD (full name Liquid Crystal Display, liquid crystal display) products

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